JP2002174478A - Cooling and heating apparatus, and automatic vending machine using this cooling and heating apparatus - Google Patents

Cooling and heating apparatus, and automatic vending machine using this cooling and heating apparatus

Info

Publication number
JP2002174478A
JP2002174478A JP2001173682A JP2001173682A JP2002174478A JP 2002174478 A JP2002174478 A JP 2002174478A JP 2001173682 A JP2001173682 A JP 2001173682A JP 2001173682 A JP2001173682 A JP 2001173682A JP 2002174478 A JP2002174478 A JP 2002174478A
Authority
JP
Japan
Prior art keywords
heating
cooling
refrigerant
compressor
flammable refrigerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001173682A
Other languages
Japanese (ja)
Inventor
Masao Kurachi
正夫 蔵地
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP2001173682A priority Critical patent/JP2002174478A/en
Publication of JP2002174478A publication Critical patent/JP2002174478A/en
Pending legal-status Critical Current

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  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an automatic vending machine as a cooling and heating apparatus which can perform the cooling and heating of a storage safely, even if a combustible refrigerant is used as a refrigerant of a freezing cycle. SOLUTION: This system is constituted of a freezing cycle, where a compressor 8, a condenser 9, depressurizing means 10-13, and evaporators 14-16 are connected into an annular circuit by pipes and the above annular circuit is charged with a mixed refrigerant including a combustible refrigerant or a combustible refrigerant consisting of single components, and heating heaters 17-19, and the above evaporators and the heating heaters are arranged so that they can cool and heat storages 2-4, and besides this is equipped with a cooling and heating controller 29 which performs cooling and heating by controlling the above freezing cycle and heating heaters, and the surface temperatures of the heaters are set lower than the ignition point of the above combustible refrigerant. Accordingly, even if the combustible refrigerant leaks by mistake by the evaporators and it contacts with the heating heaters when warming the goods within the storages by the heating heaters, it can be so arranged as not to ignite since the surface temperatures of the heating heaters are lower than the ignition point of the combustible refrigerant.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、可燃性冷媒を使用
した冷凍サイクルの冷却加温装置とこの装置を使用した
自動販売機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration cycle cooling / heating apparatus using a combustible refrigerant and a vending machine using the apparatus.

【０００２】[0002]

【従来の技術】近年、地球のオゾン層を保護する観点か
ら、冷却装置の冷凍サイクルに使用されていた冷媒ＣＦ
Ｃ（クロロフルオロカーボン）−１２あるいはＨＣＦＣ
（ハイドロクロロフルオロカーボン）−２２といった塩
素原子を含んだ冷媒の使用が規制され、オゾン層の破壊
能力のない冷媒に切替える必要がある。そして、オゾン
層の破壊能力のない冷媒として、ＨＦＣ（ハイドロフル
オロカーボン）が考えられ、ＨＣＦＣ−２２が使用され
ていた自動販売機における冷凍サイクルの代替冷媒とし
ては、沸点の近いＲ４０７Ｃが第１候補に挙げられ採用
されている。2. Description of the Related Art In recent years, from the viewpoint of protecting the earth's ozone layer, a refrigerant CF used in a refrigeration cycle of a cooling device has been used.
C (chlorofluorocarbon) -12 or HCFC
Use of a refrigerant containing a chlorine atom such as (hydrochlorofluorocarbon) -22 is regulated, and it is necessary to switch to a refrigerant having no ozone layer destruction ability. HFC (hydrofluorocarbon) is considered as a refrigerant having no destruction ability of the ozone layer, and as a substitute refrigerant for a refrigeration cycle in a vending machine using HCFC-22, R407C having a close boiling point is a first candidate. Nominated and adopted.

【０００３】[0003]

【発明が解決しようとする課題】しかし、上記した従来
技術では、オゾン層保護の目的は達成できるが、地球の
温暖化防止の観点からは、冷媒としての冷凍サイクル効
率が高く、かつ地球温暖化係数の小さい冷媒が望まれ
る。そこで、オゾン層の破壊能力が無く、かつ地球温暖
化係数の小さい冷媒としては、ＨＣ（ハイドロカーボ
ン）系の冷媒が考えられる。However, in the above-mentioned prior art, although the purpose of protecting the ozone layer can be achieved, from the viewpoint of preventing global warming, the efficiency of the refrigeration cycle as a refrigerant is high and the global warming is prevented. A refrigerant with a small coefficient is desired. Therefore, as a refrigerant having no ozone layer destruction ability and a small global warming potential, an HC (hydrocarbon) refrigerant can be considered.

【０００４】しかし、ＨＣ系冷媒は可燃性を有している
ので、冷却加温装置における冷凍サイクルの冷媒として
使用する場合には、可燃性冷媒の漏れに注意を払わなけ
ればならなく、特に自動販売機等のような物品の収納庫
の場合には、半密閉空間内部へ漏れた可燃性冷媒に引火
しないように、安全性を高める必要がある。However, since the HC-based refrigerant is flammable, when used as a refrigerant in a refrigeration cycle in a cooling and heating device, care must be taken to prevent leakage of the flammable refrigerant. In the case of an article storage such as a vending machine, it is necessary to enhance safety so that the flammable refrigerant leaking into the semi-enclosed space is not ignited.

【０００５】本発明は、従来の課題を解決するもので、
冷凍サイクルの冷媒として可燃性冷媒を使用しても冷却
と加温を安全に行える冷却加温装置とこの装置を使用し
た自動販売機を提供することを目的とする。[0005] The present invention solves the conventional problems.
It is an object of the present invention to provide a cooling and heating device capable of safely performing cooling and heating even when a combustible refrigerant is used as a refrigerant of a refrigeration cycle, and a vending machine using the device.

【０００６】[0006]

【課題を解決するための手段】本発明の請求項１に記載
の発明は、圧縮機、凝縮器、減圧手段、蒸発器を配管で
環状回路に接続し、可燃性冷媒を含む混合冷媒あるいは
単一成分からなる可燃性冷媒を前記環状回路に封入して
なる冷凍サイクルと加温ヒータで構成するとともに前記
蒸発器と加温ヒータを所定置が冷却と加温できるように
配置し、かつ前記冷凍サイクルおよび加温ヒータを制御
して冷却と加温を行う冷却加温制御部を備え、前記加温
ヒータは表面温度を、前記可燃性冷媒の発火点より低く
設定してなるものである。According to a first aspect of the present invention, a compressor, a condenser, a pressure reducing means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a combustible refrigerant or a single refrigerant is connected. A refrigeration cycle in which a combustible refrigerant composed of one component is sealed in the annular circuit and a heating heater, and the evaporator and the heating heater are arranged so that a predetermined position can be cooled and heated; The apparatus further includes a cooling and heating control unit that controls a cycle and a heating heater to perform cooling and heating. The heating heater has a surface temperature set lower than the ignition point of the flammable refrigerant.

【０００７】上記手段によれば、蒸発器と加温ヒータが
冷却と加温できるように配置されている所定置が、例え
ば自動販売機の収納庫であって、加温ヒータにより収納
庫内の商品を暖めている際に蒸発器より誤って可燃性冷
媒が漏れ加温ヒータに触れたとしても、加温ヒータの表
面温度が可燃性冷媒の発火点より低いので引火しないよ
うに作用する。According to the above-mentioned means, the predetermined position where the evaporator and the heating heater are arranged so as to be able to cool and heat is, for example, a storage of a vending machine, and the storage in the storage is controlled by the heating heater. Even if the flammable refrigerant leaks from the evaporator while touching the heating heater while the product is being warmed, the surface temperature of the heating heater is lower than the ignition point of the flammable refrigerant, so that it does not ignite.

【０００８】請求項２に記載の発明は、圧縮機、凝縮
器、減圧手段、蒸発器を配管で環状回路に接続し、可燃
性冷媒を含む混合冷媒あるいは単一成分からなる可燃性
冷媒を前記環状回路に封入してなる冷凍サイクルと加温
ヒータで構成するとともに前記蒸発器と加温ヒータを所
定置が冷却と加温できるように配置し、かつ前記冷凍サ
イクルおよび加温ヒータを制御して冷却と加温を行う冷
却加温制御部を備え、前記冷凍サイクルをヒートポンプ
に構成し、このヒートポンプと前記加温ヒータにより加
温を行い、かつ前記加温ヒータは前記可燃性冷媒の発火
点より低い発熱容量に設定してなるものである。According to a second aspect of the present invention, a compressor, a condenser, a decompression means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a combustible refrigerant or a single component combustible refrigerant is discharged. The evaporator and the heating heater are configured to include a refrigeration cycle and a heating heater sealed in an annular circuit, and the evaporator and the heating heater are arranged so that a predetermined position can be cooled and heated, and the refrigeration cycle and the heating heater are controlled. A cooling and heating control unit for performing cooling and heating is provided, and the refrigeration cycle is configured as a heat pump, the heating is performed by the heat pump and the heating heater, and the heating heater is set at a firing point of the flammable refrigerant. The heat generation capacity is set to be low.

【０００９】また、請求項３に記載の発明も、圧縮機、
凝縮器、減圧手段、複数の蒸発器を配管で環状回路に接
続し、可燃性冷媒を含む混合冷媒あるいは単一成分から
なる可燃性冷媒を前記環状回路に封入してなる冷凍サイ
クルと加温ヒータで構成するとともに前記蒸発器と加温
ヒータを所定置が冷却と加温できるように配置し、かつ
前記冷凍サイクルおよび加温ヒータを制御して冷却と加
温を行う冷却加温制御部と、前記冷凍サイクルをヒート
ポンプに構成し、前記蒸発器がそれぞれ冷却と加温が自
由に選択できるようにする冷却加温設定部とを備え、前
記ヒートポンプと前記加温ヒータにより加温を行い、か
つ前記加温ヒータは前記可燃性冷媒の発火点より低い発
熱容量に設定してなるものである。The invention according to claim 3 also provides a compressor,
A refrigeration cycle and a heating heater in which a condenser, a pressure reducing means, and a plurality of evaporators are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant having a single component is sealed in the annular circuit. And a cooling and heating control unit configured to arrange the evaporator and the heating heater so that a predetermined position can be cooled and heated, and to control the refrigeration cycle and the heating heater to perform cooling and heating, The refrigeration cycle is configured as a heat pump, the evaporator is provided with a cooling and heating setting unit that allows free selection of cooling and heating, respectively, the heating is performed by the heat pump and the heating heater, and The heating heater is set to have a heating capacity lower than the ignition point of the flammable refrigerant.

【００１０】また請求項４に記載の発明も、圧縮機、凝
縮器、減圧手段、複数の蒸発器を配管で環状回路に接続
し、可燃性冷媒を含む混合冷媒あるいは単一成分からな
る可燃性冷媒を前記環状回路に封入してなる冷凍サイク
ルと加温ヒータで構成するとともに前記蒸発器と加温ヒ
ータを所定置が冷却と加温できるように配置し、かつ前
記冷凍サイクルおよび加温ヒータを制御して冷却と加温
を行う冷却加温制御部と、前記冷凍サイクルをヒートポ
ンプに構成し、前記蒸発器のうち、冷却専用の蒸発器を
除く各蒸発器がそれぞれ冷却と加温が自由に選択できる
ようにする冷却加温設定部とを備え、前記ヒートポンプ
と前記加温ヒータにより加温を行い、かつ前記加温ヒー
タは前記可燃性冷媒の発火点より低い発熱容量に設定し
てなるものである。[0010] The invention according to claim 4 also connects a compressor, a condenser, a decompression means, and a plurality of evaporators to an annular circuit by piping, and forms a mixed refrigerant containing a combustible refrigerant or a single component. The evaporator and the heater are arranged so that a predetermined position can be cooled and heated, and the refrigeration cycle and the heater are arranged. A cooling and heating control unit for controlling and performing cooling and heating, and the refrigeration cycle is configured as a heat pump, and among the evaporators, each of the evaporators except for a dedicated cooling evaporator can freely perform cooling and heating. A cooling / heating setting section for enabling selection, wherein the heating is performed by the heat pump and the heating heater, and the heating heater is set to a heat generation capacity lower than the ignition point of the flammable refrigerant. Is

【００１１】上記各手段によれば、蒸発器と加温ヒータ
が冷却加温できるように配置されている所定置が、例え
ば自動販売機の収納庫であって、冷凍サイクルのヒート
ポンプ方式と加温ヒータにより収納庫内の商品を暖めて
いる際に、蒸発器より誤って可燃性冷媒が漏れ加温ヒー
タに触れたとしても、加温ヒータの発熱容量が可燃性冷
媒の発火点より低いので引火しないように作用する。According to each of the above means, the predetermined position where the evaporator and the heating heater are arranged so as to be able to cool and heat is, for example, a storage of an automatic vending machine. Even if the flammable refrigerant leaks from the evaporator while touching the heating heater while the product in the storage is being heated by the heater, the heating capacity of the heating heater is lower than the ignition point of the flammable refrigerant. Act not to.

【００１２】請求項５に記載の発明は、圧縮機、凝縮
器、減圧手段、複数の蒸発器を配管で環状回路に接続
し、可燃性冷媒を含む混合冷媒あるいは単一成分からな
る可燃性冷媒を前記環状回路に封入してなる冷凍サイク
ルとヒートポンプに構成するとともに前記蒸発器を所定
置が冷却と加温できるように配置し、かつ前記冷凍サイ
クルを制御して冷却と加温を行う冷却加温制御部と、前
記蒸発器のうち、冷却専用の蒸発器を除く各蒸発器がそ
れぞれ冷却と加温が自由に選択できるようにする冷却加
温設定部とを備え、前記ヒートポンプのみで加温を行う
ようにしたものである。According to a fifth aspect of the present invention, a compressor, a condenser, a pressure reducing means, and a plurality of evaporators are connected to an annular circuit by piping, and a mixed refrigerant containing a combustible refrigerant or a single component combustible refrigerant. And a heat pump and a refrigeration cycle enclosed in the annular circuit, the evaporator is arranged so that a predetermined position can be cooled and heated, and a cooling and heating unit for controlling the refrigeration cycle to perform cooling and heating. A temperature control unit, and a cooling and heating setting unit that allows each of the evaporators, except for the evaporator dedicated to cooling, to freely select cooling and heating, and heats only with the heat pump. Is performed.

【００１３】上記手段によれば、蒸発器が冷却加温でき
るように配置されている所定置が、例えば自動販売機の
収納庫であって、ヒートポンプ方式による蒸発器の凝縮
作用のみで加温し、加温ヒータ等の可燃性冷媒に直接、
引火するものが無いので、蒸発器より誤って可燃性冷媒
が漏れたとしても、可燃性冷媒に引火しないように作用
する。According to the above-mentioned means, the predetermined position where the evaporator can be cooled and heated is, for example, a storage of a vending machine, in which the evaporator is heated only by the condensing action of the evaporator by the heat pump method. Directly to flammable refrigerants such as heating heaters,
Since there is nothing to ignite, even if the flammable refrigerant leaks from the evaporator by mistake, it acts so as not to ignite the flammable refrigerant.

【００１４】請求項６に記載の発明は、圧縮機、凝縮
器、減圧手段、蒸発器を配管で環状回路に接続し、可燃
性冷媒を含む混合冷媒あるいは単一成分からなる可燃性
冷媒を前記環状回路に封入してなる冷凍サイクルと加温
ヒータで構成するとともに前記蒸発器と加温ヒータを所
定置が冷却と加温できるように配置し、かつ前記冷凍サ
イクルおよび加温ヒータを制御して冷却と加温を行う冷
却加温制御部を備え、加温ヒータの使用時は、冷却用の
蒸発器内に可燃性冷媒が滞留しないようにしてなるもの
である。According to a sixth aspect of the present invention, the compressor, the condenser, the decompression means, and the evaporator are connected to an annular circuit by piping, and the mixed refrigerant containing the flammable refrigerant or the flammable refrigerant composed of a single component is discharged. The evaporator and the heating heater are configured to include a refrigeration cycle and a heating heater sealed in an annular circuit, and the evaporator and the heating heater are arranged so that a predetermined position can be cooled and heated, and the refrigeration cycle and the heating heater are controlled. A cooling and heating control unit for performing cooling and heating is provided so that when the heating heater is used, the flammable refrigerant does not stay in the evaporator for cooling.

【００１５】上記手段によれば、蒸発器と加温ヒータが
冷却と加温できるように配置されている所定置が、例え
ば自動販売機の収納庫であって、加温ヒータにより収納
庫内の商品を暖めている際に、冷却用の蒸発器内に可燃
性冷媒が滞留しないようにしているので蒸発器より誤っ
て可燃性冷媒が収納庫内に漏れる恐れが無くなり、加温
ヒータ等による引火が起こらないように作用する。According to the above-mentioned means, the predetermined location where the evaporator and the heating heater are arranged so as to be able to cool and heat is, for example, a storage of a vending machine, and the heating heater is used to store the inside of the storage. Since the flammable refrigerant is prevented from staying in the cooling evaporator when the product is warmed, there is no danger that the flammable refrigerant leaks into the storage from the evaporator accidentally. Acts to prevent the occurrence of

【００１６】請求項７に記載の発明は、請求項１〜請求
項６のいずれか一項の記載において、蒸発器は冷凍サイ
クルを構成する環状回路に接続した溶接部を常に外気へ
連通している位置に配置してなるものである。According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the evaporator always communicates a welded portion connected to an annular circuit constituting a refrigeration cycle to outside air. It is arranged in the position where it is.

【００１７】上記手段によれば、蒸発器と加温ヒータが
冷却と加温できるように配置されている所定置が、例え
ば自動販売機の収納庫であって、可燃性冷媒が収納庫内
に漏れる恐れの高い、蒸発器の冷凍サイクルを構成する
環状回路に接続した溶接部が常に外気へ連通している位
置に配置されているので、前記溶接部より誤って蒸発器
の可燃性冷媒が漏れたとしても、流通する外気による拡
散で熱源等による引火が起こらないように作用する。According to the above means, the predetermined position where the evaporator and the heating heater are arranged so as to be able to cool and heat is, for example, a storage of a vending machine, and a flammable refrigerant is stored in the storage. Since the welded portion connected to the annular circuit forming the refrigeration cycle of the evaporator, which is highly likely to leak, is always located at a position communicating with the outside air, the flammable refrigerant of the evaporator leaks accidentally from the welded portion. Even if it does, it acts so that ignition by a heat source or the like does not occur due to diffusion by the circulating outside air.

【００１８】請求項８に記載の発明は、圧縮機、凝縮
器、減圧手段、補助熱交換器を配管で環状回路に接続
し、可燃性冷媒を含む混合冷媒あるいは単一成分からな
る可燃性冷媒を前記環状回路に封入してなる冷凍サイク
ルに構成し、前記補助熱交換器と間接熱交換した２次冷
媒を循環させ、所定置を冷却と加温またはそのいずれか
ができるように配置した熱交換器により前記冷凍サイク
ルを２次冷媒方式にしてなるものである。According to an eighth aspect of the present invention, a compressor, a condenser, a pressure reducing means, and an auxiliary heat exchanger are connected to an annular circuit by piping, and a mixed refrigerant containing a combustible refrigerant or a single component combustible refrigerant. In a refrigeration cycle sealed in the annular circuit, circulates a secondary refrigerant indirectly heat-exchanged with the auxiliary heat exchanger, and heats or cools a predetermined position so that it can be cooled and / or heated. The refrigeration cycle is changed to a secondary refrigerant system by an exchanger.

【００１９】上記手段によれば、熱交換器が冷却と加温
またはそのいずれかができるように配置されている所定
置が、例えば自動販売機の収納庫であって、熱交換器が
可燃性冷媒を使用している冷凍サイクルの補助熱交換器
と間接熱交換した２次冷媒方式にしているので、熱交換
器より可燃性冷媒が収納庫内に漏れる恐れが無くなり、
例えば加温ヒータ、庫内ファン等による引火が起こらな
いように作用する。According to the above means, the predetermined position where the heat exchanger is arranged so as to be able to cool and / or heat is, for example, a storage of a vending machine, and the heat exchanger is flammable. Since the secondary refrigerant system uses indirect heat exchange with the auxiliary heat exchanger of the refrigeration cycle that uses refrigerant, there is no risk of flammable refrigerant leaking into the storage from the heat exchanger,
For example, it acts so as not to cause ignition by a heating heater, an internal fan, or the like.

【００２０】請求項９に記載の発明は、請求項１〜請求
項８のいずれか一項に記載の冷却加温装置を備えた自動
販売機なので、請求項１〜請求項８に記載の作用により
可燃性冷媒に引火が起こらないように作用する。According to a ninth aspect of the present invention, there is provided a vending machine provided with the cooling and heating device according to any one of the first to eighth aspects. Thus, the flammable refrigerant acts so as not to ignite.

【００２１】請求項１０に記載の発明は、通気口のある
機械室と複数の収納庫を備えた自動販売機において、前
記機械室に設けた圧縮機と、前記機械室に設けた庫外熱
交換器と、前記複数の収納庫に各々設けた庫内熱交換器
と、前記庫内熱交換器の出入口の一方と前記圧縮機の吸
入側及び吐出側とを各々電磁弁を介して並列に接続する
配管と、前記庫内熱交換器の出入口の他方と前記庫外熱
交換器の出入口の一方とを減圧手段を介して接続する配
管と、前記庫外熱交換器の出入口の他方と前記圧縮機の
吸入側及び吐出側とを各々電磁弁を介して並列に接続す
る配管とからヒートポンプサイクルを構成し、前記電磁
弁の開閉及び前記減圧手段の開度を制御する冷却加温制
御部を備え、前記ヒートポンプサイクルに可燃性冷媒を
封入してなるものである。According to a tenth aspect of the present invention, in a vending machine provided with a machine room having a vent and a plurality of storages, a compressor provided in the machine room and an external heat provided in the machine room are provided. Exchanger, an internal heat exchanger provided in each of the plurality of storages, and one of an inlet and an outlet of the internal heat exchanger and a suction side and a discharge side of the compressor in parallel via respective solenoid valves. A connecting pipe, a pipe connecting the other of the entrance and exit of the internal heat exchanger and one of the entrance and exit of the external heat exchanger via a decompression means, and the other of the entrance and exit of the external heat exchanger and the A pipe for connecting the suction side and the discharge side of the compressor in parallel via an electromagnetic valve, respectively, constitutes a heat pump cycle, and includes a cooling and heating control unit for controlling the opening and closing of the electromagnetic valve and the opening of the pressure reducing means. Provided with a flammable refrigerant sealed in the heat pump cycle A.

【００２２】上記手段によれば、自動販売機の複数の収
納庫を、ヒートポンプ方式による庫内熱交換器の凝縮作
用のみで加温するので、加温ヒータで加温する場合と比
較して省エネルギー化が図れるとともに、加温ヒータが
不要となり低コスト化を実現でき、庫内熱交換器より誤
って可燃性冷媒が漏れたとしても、可燃性冷媒に引火す
る危険性を低下させるように作用する。According to the above means, the plurality of storages of the vending machine are heated only by the condensing action of the internal heat exchanger by the heat pump method, so that energy saving is achieved as compared with the case of heating by the heating heater. As a result, it is possible to reduce the risk of igniting the flammable refrigerant even if the flammable refrigerant leaks from the internal heat exchanger by mistake. .

【００２３】請求項１１に記載の発明は、請求項１０に
記載の発明において、減圧手段は、複数の収納庫に各々
設けた庫内熱交換器の出入口の一方に設けた庫内側減圧
手段と、庫外熱交換器の出入口の一方に設けた庫外側減
圧手段を備え、前記庫内側減圧手段と前記庫外側減圧手
段を配管で接続したものである。According to an eleventh aspect of the present invention, in accordance with the tenth aspect of the present invention, the decompression means includes an internal decompression means provided at one of an entrance and an exit of an internal heat exchanger provided in each of the plurality of storages. And an outside-compartment decompression means provided at one of the entrances and exits of the outside-compartment heat exchanger, and the inside-compartment decompression means and the outside-compartment decompression means are connected by piping.

【００２４】上記手段によれば、庫外側減圧手段と庫内
側減圧手段とで二段階の減圧制御を行うため、庫内側減
圧手段と庫外側減圧手段を接続する配管中の可燃性冷媒
が、圧縮機の吐出圧力と吸入圧力との中間の圧力となっ
て気液二相状態となり、配管中に存在する冷媒量が減少
し、その分初期冷媒封入量を少なくすることができるた
め、ヒートポンプサイクルより誤って可燃性冷媒が漏れ
たとしても、その濃度は低くなり、可燃性冷媒に引火す
る危険性を低下させるように作用する。According to the above means, the two-stage decompression control is performed by the outside decompression means and the inside decompression means, so that the flammable refrigerant in the pipe connecting the inside decompression means and the outside decompression means is compressed. Since the pressure becomes an intermediate pressure between the discharge pressure and the suction pressure of the machine and becomes a gas-liquid two-phase state, the amount of refrigerant present in the piping decreases, and the initial refrigerant charge amount can be reduced accordingly, so that the heat pump cycle Even if the flammable refrigerant leaks accidentally, its concentration will be low, which acts to reduce the risk of ignition of the flammable refrigerant.

【００２５】請求項１２に記載の発明は、請求項１０ま
たは請求項１１に記載の発明において、電磁弁及び減圧
手段を通気口のある機械室に配置したものである。According to a twelfth aspect of the present invention, in the tenth or eleventh aspect of the present invention, the solenoid valve and the pressure reducing means are arranged in a machine room having a vent.

【００２６】上記手段によれば、電磁弁及び減圧手段の
溶接部等から誤って可燃性冷媒が漏れたとしても、機械
室の通気口より流通する外気による拡散で、可燃性冷媒
に引火する危険性を低下させるように作用する。According to the above-described means, even if the flammable refrigerant leaks from the welded portion of the solenoid valve and the pressure reducing means by mistake, the danger of igniting the flammable refrigerant due to diffusion by the outside air flowing from the vent of the machine room. Acts to reduce sex.

【００２７】請求項１３に記載の発明は、請求項１０か
ら請求項１２のいずれか一項に記載の発明において、庫
内熱交換器を溶接部のない１本の長尺の管を蛇行させて
形成したものである。According to a thirteenth aspect of the present invention, in the invention according to any one of the tenth to twelfth aspects, the in-compartment heat exchanger is formed by meandering one long tube having no weld. It was formed.

【００２８】上記手段によれば、庫内熱交換器は可燃性
冷媒の漏れる可能性の高い溶接部がなく、庫内熱交換器
より可燃性冷媒が収納庫内に漏れる恐れが極めて少なく
なり、可燃性冷媒に引火する危険性を低下させるように
作用する。According to the above means, the internal heat exchanger does not have a welded portion where the flammable refrigerant is likely to leak, and the risk of the flammable refrigerant leaking into the storage than the internal heat exchanger is extremely reduced. It acts to reduce the risk of ignition of the combustible refrigerant.

【００２９】請求項１４に記載の発明は、請求項１０か
ら請求項１３のいずれか一項に記載の発明において、自
動販売機の複数の収納庫に加温ヒータを設けたものであ
る。[0029] According to a fourteenth aspect of the present invention, in any one of the tenth to thirteenth aspects, a heating heater is provided in a plurality of storages of the vending machine.

【００３０】上記手段によれば、加温ヒータおよびヒー
トポンプ方式による各庫内熱交換器の凝縮作用により収
納庫を加温するので、外気温度が低い場合でも十分な加
温が行えるとともに、加温に要する熱量の大部分はヒー
トポンプ方式による庫内熱交換器の凝縮作用による加温
で賄われるため、加温ヒータの容量を小さくすることが
できるので、加温ヒータのみで加温する場合と比較して
省エネルギー化が図れるとともに、加温ヒータの表面温
度を低下させることができ、庫内熱交換器より誤って可
燃性冷媒が漏れ加温ヒータに触れたとしても、漏れた可
燃性冷媒に引火する危険性を低下させるように作用す
る。According to the above-mentioned means, the storage is heated by the condensing action of the internal heat exchangers of the heating heater and the heat pump type, so that sufficient heating can be performed even when the outside air temperature is low, and Most of the required heat is supplied by the heat pump system, which is condensed by the condensing action of the internal heat exchanger, so the capacity of the heating heater can be reduced. Energy saving and lowering the surface temperature of the heating heater. Even if the flammable refrigerant leaks from the internal heat exchanger and touches the heating heater, the leaked flammable refrigerant is ignited. It acts to reduce the risk of doing so.

【００３１】[0031]

【発明の実施の形態】以下本発明の冷却加温装置とこの
冷却加温装置を使用した自動販売機につき、図面に従い
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cooling and heating apparatus according to the present invention and a vending machine using the cooling and heating apparatus will be described below with reference to the drawings.

【００３２】（実施の形態１）図１は本発明の請求項１
および請求項６、請求項７、請求項９に記載する発明に
対応する一実施形態における冷却加温装置である自動販
売機の冷却加温システムを示した外観図、図２は同自動
販売機の制御ブロック図である。(Embodiment 1) FIG. 1 shows a first embodiment of the present invention.
And FIG. 2 is an external view showing a cooling and heating system of a vending machine which is a cooling and heating device according to an embodiment corresponding to the invention described in claims 6, 7 and 9. FIG. It is a control block diagram of.

【００３３】１は冷却加温装置としての自動販売機の本
体で、上部に真中と左右の各収納庫２、３、４と下部に
機械室５を有している。前記収納庫２、３、４は外郭と
区画壁をなす内壁５、外壁６、その間の独立気泡の発泡
断熱体７からなる断熱構造体である。そして、自動販売
機本体1は冷却加温システムを、圧縮機８、凝縮器９、
減圧手段としての電動膨張弁１０、１１、１２、１３、
蒸発器１４、１５、１６、開閉手段としての電動開閉弁
Ｖ１〜Ｖ８を配管で環状回路に接続し、可燃性冷媒を含
む混合冷媒あるいは単一成分からなる可燃性冷媒を前記
環状回路に封入してなる冷凍サイクルと、表面温度を前
記可燃性冷媒の発火点より低く設定してなる加温ヒータ
１７、１８、１９とで構成する。Reference numeral 1 denotes a main body of a vending machine as a cooling and heating device, which has a middle room, left and right storages 2, 3, 4 at an upper portion, and a machine room 5 at a lower portion. Each of the storages 2, 3, and 4 is a heat insulating structure including an inner wall 5, an outer wall 6, which forms a partition wall with the outer shell, and a closed-cell foamed heat insulator 7 therebetween. Then, the vending machine body 1 includes a cooling and heating system, a compressor 8, a condenser 9,
Electric expansion valves 10, 11, 12, 13, as pressure reducing means,
The evaporators 14, 15, 16 and the electric on-off valves V1 to V8 as opening / closing means are connected to the annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. Refrigeration cycle and heating heaters 17, 18, and 19 whose surface temperature is set lower than the ignition point of the flammable refrigerant.

【００３４】すなわち、蒸発器１４、１５、１６と加温
ヒータ１７、１８、１９は、対をなして収納庫２、３、
４の底部に配置され、所定置としての収納庫を冷却と加
温できるように配置してあり、そして、各収納庫の冷凍
サイクルの環状回路は同じなので収納庫２の例を以って
説明する。圧縮機８より吐出された圧縮冷媒は、矢印の
ように流れ電動開閉弁Ｖ７より凝縮器９に流入して凝縮
され、全開した電動膨張弁１０を経て電動膨張弁１１で
減圧されて蒸発器１４に流入して蒸発し、電動開閉弁Ｖ
２を経て矢印のように流れ圧縮機９に吸引される冷却作
用の循環回路をなすように構成され、この時、電動開閉
弁Ｖ１、Ｖ８は閉じるように設定している。That is, the evaporators 14, 15, 16 and the heaters 17, 18, 19 are paired with the storages 2, 3,.
4 are arranged so as to be able to cool and heat a storage as a predetermined position, and the ring circuit of the refrigeration cycle of each storage is the same, so the explanation will be given using the example of the storage 2. I do. The compressed refrigerant discharged from the compressor 8 flows as shown by the arrow, flows into the condenser 9 from the electric open / close valve V7, is condensed, passes through the fully opened electric expansion valve 10, is decompressed by the electric expansion valve 11, and is evaporated. Flows into the evaporator and evaporates.
It is configured to form a circulation circuit of a cooling action which flows through the compressor 9 as indicated by an arrow through the arrow 2, and at this time, the electric on-off valves V1 and V8 are set to be closed.

【００３５】また、この冷凍サイクルは、凝縮器９の入
口側と圧縮機８の吸引側とを電動開閉弁Ｖ８で接続し、
かつ圧縮機８の吐出側と蒸発器１４の出口側とを電動開
閉弁Ｖ１で接続してヒートポンプ方式になるように、圧
縮機８より吐出された圧縮冷媒が矢印のように流れ電動
開閉弁Ｖ１より蒸発器１４に流入して凝縮され、全開し
た電動膨張弁１１を経て電動膨張弁１０で減圧されて凝
縮器９に流入して蒸発し、電動開閉弁Ｖ８を経て矢印の
ように流れ圧縮機８に吸引される循環回路に構成され、
この時電動開閉弁Ｖ２、Ｖ７は閉じるように設定してい
る。In this refrigeration cycle, the inlet side of the condenser 9 and the suction side of the compressor 8 are connected by an electric on-off valve V8.
In addition, the compressed refrigerant discharged from the compressor 8 flows as shown by an arrow so that the discharge side of the compressor 8 and the outlet side of the evaporator 14 are connected by an electric on-off valve V1 to form a heat pump system. From the evaporator 14 to be condensed, through the fully opened electric expansion valve 11, decompressed by the electric expansion valve 10, flow into the condenser 9 and evaporate, flow through the electric open / close valve V8 as shown by the arrow, and the compressor flows. 8 is constituted by a circulation circuit to be sucked,
At this time, the electric on-off valves V2 and V7 are set to be closed.

【００３６】以上説明した冷却加温システムの冷凍サイ
クルを構成する圧縮機８、凝縮器９、電動膨張弁１０、
１１、１２、１３、電動開閉弁Ｖ１〜Ｖ８、そして蒸発
器１４〜１６を含む各配管との多数の溶接部２０と圧縮
機８、凝縮器９は、通気口２１、２２を通じて外気へ常
に通じている機械室５に配置している。The compressor 8, the condenser 9, the electric expansion valve 10, which constitutes the refrigeration cycle of the cooling and heating system described above,
A large number of welds 20 with each pipe including 11, 12, 13, the electric on-off valves V1 to V8, and the evaporators 14 to 16, the compressor 8, and the condenser 9 always communicate with the outside air through the vents 21, 22. In the machine room 5.

【００３７】２３、２４、２５は各収納庫２〜４の底部
に設けた庫内ファンで、モールドモータを使用して可燃
性冷媒に引火しないようにし、蒸発器１４〜１６と熱交
換した冷気と、加温ヒータ１７〜１９と熱交換した暖気
を各収納庫２〜４に強制的に循環させる。２６は機械室
５に設けた庫外ファンで、モールドモータを使用して可
燃性冷媒に引火しないようにし、かつ通気口２１、２２
を通じて圧縮機８、凝縮器９の熱を放散するものであ
る。Reference numerals 23, 24, and 25 denote in-compartment fans provided at the bottoms of the respective storage compartments 2 to 4 for preventing flammable refrigerant from being ignited by using a molded motor and for exchanging heat with the evaporators 14 to 16. Then, the warm air exchanged with the heating heaters 17 to 19 is forcibly circulated to the storages 2 to 4. Reference numeral 26 denotes an outside fan provided in the machine room 5, which uses a molded motor to prevent flammable refrigerant from being ignited, and vents 21 and 22
Through the compressor 8 and the condenser 9.

【００３８】２７は図２に示すように、自動販売機を制
御する主制御部で、２８は主制御部２７を介して各収納
庫２〜４を冷却庫または加温庫に設定する冷却加温設定
部で、２９は収納庫に設けた庫内温度センサ（図示せ
ず）および商品温度センサ（図示せず）の検出温度に基
づき、圧縮機８、電動膨張弁１０〜１３、電動開閉弁Ｖ
１〜Ｖ８、加温ヒータ１７〜１９、庫内ファン２３〜２
５、庫外ファン２６をオンオフ制御する冷却加温制御部
で、これ等はマイクロコンピュータ３０等で構成してい
る。３１は収納庫２〜４に設けた異常温度センサで、表
面温度を可燃性冷媒の発火点より低くしてなる加温ヒー
タ１７〜１９が故障で異常に温度上昇した時に、この温
度を検出して冷却加温制御部２９に送信し、そして冷却
加温制御部２９により故障した加温ヒータ１７〜１９へ
の通電を停止させる。As shown in FIG. 2, reference numeral 27 denotes a main control unit for controlling a vending machine, and reference numeral 28 denotes a cooling unit for setting each of the storages 2 to 4 to a cooling storage or a heating storage via the main control unit 27. A temperature setting unit 29 includes a compressor 8, electric expansion valves 10 to 13, and an electric open / close valve based on the temperatures detected by an internal temperature sensor (not shown) and a product temperature sensor (not shown) provided in the storage. V
1 to V8, heating heaters 17 to 19, in-compartment fans 23 to 2
5. A cooling / warming control unit for controlling the on / off operation of the external fan 26, which comprises a microcomputer 30 or the like. An abnormal temperature sensor 31 is provided in each of the storages 2 to 4, and detects an abnormal temperature when the heating heaters 17 to 19 whose surface temperature is lower than the ignition point of the flammable refrigerant abnormally rises due to a failure. Then, the power is transmitted to the cooling and heating control unit 29, and the cooling and heating control unit 29 stops energizing the failed heating heaters 17 to 19.

【００３９】なお、図中３２は自動販売機本体１の断熱
構造体よりなる前面扉、３３は各収納庫２〜４の販売棚
に積んだ商品、３４は前面扉３１の表に設けた商品選択
釦、３５は全面扉３１の裏側に設けたキーボードで、各
種データの入力設定を行う。また、電動膨張弁１０〜１
３は、減圧機能と開閉機能を備えているものである。In the drawing, reference numeral 32 denotes a front door made of a heat insulating structure of the vending machine main body 1, reference numeral 33 denotes a product stacked on the sales shelf of each of the storages 2 to 4, and reference numeral 34 denotes a product provided on the front of the front door 31. A selection button 35 is a keyboard provided on the back side of the front door 31 for inputting various data. Also, the electric expansion valves 10-1
Reference numeral 3 is provided with a decompression function and an opening / closing function.

【００４０】上記実施形態において、自動販売機におけ
る収納庫２〜４の冷却と加温につき説明する。すなわ
ち、収納庫２〜４の全部を冷却庫とするときは、冷却加
温設定部２８により全部冷却と設定し、電動開閉弁Ｖ
１、Ｖ３、Ｖ５、Ｖ８を閉じ、電動開閉弁Ｖ２、Ｖ４、
Ｖ６、Ｖ７を開く。そして、冷却加温制御部２９により
圧縮機８を運転すると、圧縮冷媒は電動開閉弁Ｖ７を通
り凝縮器９にて凝縮し、次に電動膨張弁１０に流れて減
圧され、各電動膨張弁１１〜１３に分流して更に減圧さ
れる。続いて、各蒸発器１４〜１６にて蒸発して各電動
開閉弁Ｖ２、Ｖ４、Ｖ６を経て合流し圧縮機８に戻る。In the above embodiment, cooling and heating of the storages 2 to 4 in the vending machine will be described. That is, when all of the storages 2 to 4 are to be used as the cooling storage, the cooling and heating setting unit 28 sets the cooling to all, and the electric on-off valve V
1, V3, V5, V8 are closed, and the electric on-off valves V2, V4,
Open V6 and V7. Then, when the compressor 8 is operated by the cooling and heating control unit 29, the compressed refrigerant is condensed in the condenser 9 through the electric on-off valve V7, then flows to the electric expansion valve 10 and is decompressed. And further reduced in pressure. Then, it evaporates in each evaporator 14-16, joins via each electric open / close valve V2, V4, V6, and returns to the compressor 8.

【００４１】また、収納庫２〜４の全部を加温庫とする
ときは、冷却加温設定部２８により全部加温と設定し、
続いて冷却加温制御部２９により各蒸発器１４〜１６内
の可燃性冷媒を機械室５の圧縮機８、凝縮器９と環状回
路に回収する。すなわち、電動膨張弁１０〜１３、電動
開閉弁Ｖ１、Ｖ３、Ｖ５、Ｖ８を閉じ、電動開閉弁Ｖ
２、Ｖ４、Ｖ６、Ｖ７を開き一定時間、圧縮機８を運転
して蒸発器１４〜１６の可燃性冷媒を吸引し圧縮機８、
凝縮器９を含む環状回路の途中に回収し、次に電動開閉
弁Ｖ２、Ｖ４、Ｖ６を閉じて、最後に加温ヒータ１７〜
１９に通電する。When all of the storages 2 to 4 are to be heated, all of the storages 2 to 4 are set to be heated by the cooling and heating setting section 28,
Subsequently, the combustible refrigerant in each of the evaporators 14 to 16 is recovered by the cooling and heating control unit 29 to the compressor 8, the condenser 9, and the annular circuit of the machine room 5. That is, the electric expansion valves 10 to 13 and the electric on-off valves V1, V3, V5, V8 are closed, and the electric on-off valves V
2, V4, V6, and V7 are opened, and the compressor 8 is operated for a certain period of time to draw in the combustible refrigerant in the evaporators 14 to 16, and the compressor 8,
It is collected in the middle of the annular circuit including the condenser 9, then the electric on / off valves V2, V4, V6 are closed, and finally the heating heaters 17 to
19 is energized.

【００４２】そして、加温ヒータ１７〜１９の表面温度
は、可燃性冷媒の発火点より低い温度で収納庫の空気を
加温する。この加温中に事故で加温ヒータ１７〜１９の
表面温度が異常上昇すると、これを検出した異常センサ
３１の信号により冷却加温制御部２９が事故の加温ヒー
タへの通電を停止する。Then, the surface temperature of the heaters 17 to 19 heats the air in the storage at a temperature lower than the ignition point of the combustible refrigerant. If the surface temperature of the heating heaters 17 to 19 abnormally rises during this heating due to an accident, the cooling and heating control unit 29 stops the energization to the heating heater in the accident by the signal of the abnormality sensor 31 that detects this.

【００４３】更に、収納庫２〜４の一部を冷却庫と加温
庫にすることも可能で、それは冷却加温設定部２８によ
り行い、各蒸発器１４〜１６に対応する電動膨張弁１１
〜１３、電動開閉弁Ｖ１〜Ｖ６、加温ヒータ１７〜１９
をオンオフ制御して各蒸発器１４〜１６に対応する個々
の冷凍サイクルに冷媒を循環させ、また各加温ヒータ１
７〜１９に対応する個々の回路に通電して行うものであ
る。Further, a part of the storages 2 to 4 can be used as a cooling storage and a heating storage, which are performed by the cooling and heating setting unit 28 and the electric expansion valves 11 corresponding to the respective evaporators 14 to 16.
To 13, electric on-off valves V1 to V6, heating heaters 17 to 19
Is turned on / off to circulate the refrigerant through the individual refrigeration cycles corresponding to the respective evaporators 14 to 16.
This is performed by energizing the individual circuits corresponding to 7 to 19.

【００４４】特に本発明では、加温ヒータ１７〜１９の
表面温度を、冷凍サイクルの回路に封入した可燃性冷媒
の発火点より低く設定しているので、各蒸発器１４〜１
６と加温ヒータ１７〜１９が冷却と加温できるように配
置されている所定置としての自動販売機の収納庫２〜４
において、加温ヒータ１７〜１９により収納庫内の商品
を暖めている際に蒸発器より誤って可燃性冷媒が漏れ加
温ヒータに触れたとしても、漏れた可燃性冷媒に引火す
るのを防止できるとともに、地球温暖化の防止を図るこ
とができる。もちろん、加温ヒータ１７〜１９の表面温
度が事故で異常上昇したときは、異常温度センサ３１の
検出した信号で冷却加温制御部２９が各加温ヒータ１７
〜１９への通電を停止するので、より安全にできる。Particularly, in the present invention, since the surface temperatures of the heating heaters 17 to 19 are set lower than the ignition point of the combustible refrigerant sealed in the circuit of the refrigeration cycle, each of the evaporators 14 to 1 is set.
6 and heating heaters 17 to 19 are arranged so as to be capable of cooling and heating.
In this case, even if the flammable refrigerant leaks from the evaporator while touching the heating heater while the product in the storage is being warmed by the heating heaters 17 to 19, the leaked flammable refrigerant is prevented from igniting. As well as prevent global warming. Of course, when the surface temperature of the heating heaters 17 to 19 abnormally rises due to an accident, the cooling and heating control unit 29 uses the signal detected by the abnormal temperature sensor 31 to
Since the energization to １９19 is stopped, it can be made safer.

【００４５】また、本発明では、各収納庫２〜４を加温
庫とするため加温ヒータ１７〜１９の使用時には、これ
に先だって冷却用の蒸発器１４〜１６の可燃性冷媒を機
械室５の圧縮機８、凝縮器９と配管回路に回収し、蒸発
器１４〜１６内に可燃性冷媒が滞留しないようにしてい
る。従って、蒸発器１４〜１６と加温ヒータ１７〜１９
が冷却と加温できるように配置されている所定置として
の自動販売機の収納庫２〜４において、加温ヒータ１７
〜１９により収納庫内の商品を暖めている際に、冷却用
の蒸発器１４〜１６内に可燃性冷媒が殆ど滞留していな
いので蒸発器より誤って可燃性冷媒が収納庫内に漏れる
恐れが無くなり、仮に漏れたとしても殆ど問題にならな
い量で、しかも加温ヒータ１７〜１９の表面温度が可燃
性冷媒の発火点より低く設定しているので、二重に加温
ヒータ等による漏れた可燃性冷媒への引火を防止でき
る。Further, according to the present invention, in order to use the storages 2 to 4 as heating chambers, when the heating heaters 17 to 19 are used, the flammable refrigerant of the cooling evaporators 14 to 16 is supplied to the machine room prior to use. The refrigerant is recovered in the compressor 8 and the condenser 9 of FIG. 5 and in a piping circuit so that the flammable refrigerant does not stay in the evaporators 14 to 16. Therefore, the evaporators 14 to 16 and the heating heaters 17 to 19
In the storages 2 to 4 of the vending machine as a predetermined place which are arranged so as to be able to cool and heat,
Since the combustible refrigerant hardly stays in the evaporators 14 to 16 for cooling when the products in the storage are warmed by the steps 19 to 19, the flammable refrigerant may leak into the storage by mistake from the evaporator. And the surface temperature of the heating heaters 17 to 19 is set to be lower than the ignition point of the flammable refrigerant. The ignition of the flammable refrigerant can be prevented.

【００４６】また、本発明では、蒸発器１４〜１６の冷
凍サイクルを構成する環状回路に接続した溶接部２０
を、通気口２１、２２を介して常に外気へ連通している
位置として機械室５に配置しているので、蒸発器１４〜
１６と加温ヒータ１７〜１９が冷却と加温できるように
配置されている所定置である自動販売機の収納庫２〜４
において、可燃性冷媒が収納庫内に漏れる恐れの高い部
分が無くなり、収納庫２〜４における可燃性冷媒への引
火が無くなり安全性を高めることができる。そして、前
記溶接部２０より誤って可燃性冷媒が漏れたとしても、
庫外ファン２６による流通、または自然対流により流通
する外気による拡散で熱源等による引火が起こらないよ
うにできる。Further, in the present invention, the welding portion 20 connected to the annular circuit constituting the refrigeration cycle of the evaporators 14 to 16 is provided.
Is arranged in the machine room 5 as a position that is always in communication with the outside air via the vents 21 and 22, so that the evaporators 14 to
Vending machine storages 2 to 4 which are predetermined positions where heating heaters 16 and heating heaters 17 to 19 are arranged so as to be able to cool and heat.
In the above, the portion where the flammable refrigerant is likely to leak into the storage is eliminated, and the flammable refrigerant in the storages 2 to 4 is no longer ignited, and safety can be improved. And even if the flammable refrigerant leaks from the weld 20 by mistake,
It is possible to prevent ignition by a heat source or the like due to the circulation by the outside fan 26 or the diffusion by the outside air flowing by natural convection.

【００４７】また、蒸発器１４〜１６は従来のフィン式
熱交換器を使用すると、フィンを貫通している蛇行状の
管が、一般的には左右の蛇行部分でＵ字状のリターンベ
ンドを溶接しているため、この溶接部分が収納庫２〜４
に残ることになり好ましくない。そこで本発明では、フ
ィンを貫通している蛇行状の管を、１本の長尺の管を蛇
行させて形成し、この両端を機械室５において冷凍サイ
クルを構成する環状回路に接続して溶接部２０としてい
る。従って、蒸発器１４〜１６に従来のフィン式熱交換
器を使用した場合より、更に漏れた可燃性冷媒への引火
防止を図ることができる。When a conventional fin-type heat exchanger is used for the evaporators 14 to 16, a meandering tube penetrating the fins generally has a U-shaped return bend at the right and left meandering portions. Because it is welded, this welded part is
Undesirably. Therefore, in the present invention, a meandering tube penetrating the fins is formed by meandering one long tube, and both ends are connected to an annular circuit constituting a refrigeration cycle in the machine room 5 and welded. The section 20. Accordingly, it is possible to further prevent ignition of the leaked combustible refrigerant as compared with the case where a conventional fin-type heat exchanger is used for the evaporators 14 to 16.

【００４８】なお、上記実施形態では、冷却加温システ
ムの冷凍サイクルを使用して冷却だけを説明したが、ヒ
ートポンプ方式に切替えて加温することも可能で、電動
開閉弁Ｖ１〜Ｖ８の開閉を冷却時とは逆にして冷媒の循
環を逆にすれば良い。また、機械室５に可燃性冷媒が漏
れたときは、これをガスセンサで検知し、この検知信号
により冷却加温制御部２９により庫外ファン２６を強制
的に運転して機械室５外に排出するようにするととも
に、これを含めた上記の可燃性冷媒が漏れた際には前面
扉３２に表示するようにしても良い。In the above embodiment, only the cooling is described using the refrigeration cycle of the cooling and heating system. However, it is also possible to switch to a heat pump system for heating and open and close the electric on-off valves V1 to V8. What is necessary is just to reverse the circulation of the refrigerant in the reverse of the cooling. When the flammable refrigerant leaks into the machine room 5, it is detected by a gas sensor, and the cooling / heating control unit 29 forcibly operates the outside fan 26 to discharge the flammable refrigerant to the outside of the machine room 5 based on the detection signal. In addition, when the above-described flammable refrigerant including this leaks, it may be displayed on the front door 32.

【００４９】また、上記実施の形態では、収納庫の冷却
と加温を選択できるヒートポンプ式の冷凍サイクルを示
す図１で冷却動作のみを説明したが、図１１に示す冷却
のみしかできない冷凍サイクルの構成を備えた冷却装置
にも本発明は実施可能で、図１と同一構成および作用効
果を奏する部分には同一符号を付し、詳細な説明は省略
する。Also, in the above embodiment, only the cooling operation is described with reference to FIG. 1 showing a heat pump type refrigeration cycle in which the cooling and heating of the storage can be selected. The present invention can also be implemented in a cooling device having a configuration, and portions having the same configuration and operation and effect as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

【００５０】（実施の形態２）図３は本発明の請求項２
および請求項３、請求項９に記載する発明に対応する一
実施形態における冷却加温装置である自動販売機の冷却
加温システムを示した外観図、図４は同自動販売機の冷
却加温システム全体が加温状態の図、図５は自動販売機
の冷却加温システム全体が冷却状態の図、図６は同自動
販売機の冷却加温システムが冷却と加温の混在状態で冷
却負荷の方が大きい時の図、図７は同自動販売機の冷却
加温システムが冷却と加温の混在状態で加温負荷の方が
大きい時の図である。(Embodiment 2) FIG. 3 shows a second embodiment of the present invention.
And FIG. 4 is an external view showing a cooling and heating system of a vending machine as a cooling and heating device according to an embodiment corresponding to the invention described in claims 3 and 9. FIG. 4 is a cooling and heating system of the vending machine. Figure 5 shows the entire system in a heated state, FIG. 5 shows the entire cooling and heating system of a vending machine in a cooled state, and FIG. 6 shows the cooling and heating system of the vending machine in a mixed state of cooling and heating. 7 is a diagram when the cooling and heating system of the vending machine is in a mixed state of cooling and heating and the heating load is larger.

【００５１】この実施形態の発明は、冷凍サイクルをヒ
ートポンプ方式に切換られるようにして収納庫を冷却だ
けでなく加温もできるようにし、この分だけ加温ヒータ
は容量を小さくして、可燃性冷媒の発火点より低い発熱
容量に設定している点が、上記実施の形態１の発明と異
なるだけなので、同一構成および作用効果を奏する部分
には同じ符号を付して詳細な説明を省き、異なる部分を
中心に説明する。According to the invention of this embodiment, the refrigerating cycle can be switched to the heat pump system so that the storage can be heated as well as cooled. The point that the heat generation capacity is set lower than the ignition point of the refrigerant is only different from the invention of the first embodiment. Therefore, the parts having the same configuration and operation and effect are denoted by the same reference numerals, and detailed description is omitted. The different parts will be mainly described.

【００５２】各収納庫２〜４を冷却する冷凍サイクルを
構成する圧縮機８、凝縮器９、電動膨張弁１０〜１３、
蒸発器１４〜１６は、ヒートポンプ方式に切替えて収納
庫２〜４を加温もできるように電動開閉弁Ｖ１〜Ｖ８の
開閉を冷却時とは逆にして冷媒の循環を逆にできるよう
に構成し、これを冷却加温制御部２９で制御する。The compressor 8, the condenser 9, the electric expansion valves 10 to 13, which constitute a refrigeration cycle for cooling the storages 2 to 4,
The evaporators 14 to 16 are configured so that the circulation of the refrigerant can be reversed by opening and closing the electric on-off valves V1 to V8 in reverse to the cooling so that the storages 2 to 4 can be heated by switching to the heat pump method. This is controlled by the cooling and heating control unit 29.

【００５３】１７ａ、１８ａ、１９ａは、各収納庫２〜
４に設けた加温ヒータで、冷凍サイクルのヒートポンプ
方式による各蒸発器１４〜１６の凝縮作用による加温の
分だけ発熱容量を小さくして、可燃性冷媒の発火点より
低い発熱容量に設定している。17a, 18a and 19a are storages 2 to
4, the heating capacity is reduced by the amount of heating by the condensing action of each of the evaporators 14 to 16 by the heat pump method of the refrigeration cycle, and the heating capacity is set lower than the ignition point of the flammable refrigerant. ing.

【００５４】上記実施形態において、自動販売機におけ
る収納庫２〜４の冷却と加温につき説明する。すなわ
ち、収納庫２〜４の全部を加温庫とするときは、冷却加
温設定部２８により全部加温と設定し、電動開閉弁Ｖ
１、Ｖ３、Ｖ５、Ｖ８を開き、電動開閉弁Ｖ２、Ｖ４、
Ｖ６、Ｖ７を閉じ。そして、冷却加温制御部２９により
加温ヒータ１７ａ、１８ａ、１９ａに通電し、圧縮機８
を運転すると、図４に矢印で示す如く圧縮冷媒は各電動
開閉弁Ｖ１、Ｖ３、Ｖ５を経て蒸発器１４〜１６に流れ
て凝縮し、収納庫２〜４を前記加温ヒータ１７ａ〜１９
ａとともに加温し、更に電動膨張弁１１〜１３を経て合
流し電動膨張弁１０に減圧され凝縮器９にて蒸発して圧
縮機８に戻る循環となる。In the above embodiment, cooling and heating of the storages 2 to 4 in the vending machine will be described. In other words, when all of the storages 2 to 4 are to be heated, all the storages are set to be heated by the cooling and heating setting unit 28, and the electric on-off valve V
1, V3, V5, V8 are opened, and the electric on-off valves V2, V4,
Close V6 and V7. Then, power is supplied to the heating heaters 17a, 18a, and 19a by the cooling and heating control unit 29, and the compressor 8
4, the compressed refrigerant flows into the evaporators 14 to 16 via the respective electric on-off valves V1, V3, V5 and condenses, as indicated by arrows in FIG. 4, and stores the storages 2 to 4 in the heating heaters 17a to 17a.
Heated together with a, and further joined via the electric expansion valves 11 to 13, the pressure is reduced by the electric expansion valve 10, evaporated in the condenser 9 and returned to the compressor 8.

【００５５】また、収納庫２〜４の全部を冷却庫とする
ときは、冷却加温設定部２８により全部冷却と設定し、
電動開閉弁Ｖ１、Ｖ３、Ｖ５、Ｖ８を閉じ、電動開閉弁
Ｖ２、Ｖ４、Ｖ６、Ｖ７を開く。そして、冷却加温制御
部２９により圧縮機８を運転すると、図５に矢印で示す
如く圧縮冷媒は電動開閉弁Ｖ７を通り凝縮器９にて凝縮
し、次に電動膨張弁１０に流れて減圧され各電動膨張弁
１１〜１３に分流して更に減圧される。続いて、各蒸発
器１４〜１６にて蒸発して各電動開閉弁Ｖ２、Ｖ４、Ｖ
６を経て合流し圧縮機８に戻る循環となる。When all of the storages 2 to 4 are to be used as cooling storages, the cooling and heating setting unit 28 sets all the storages to be cooled.
The electric on / off valves V1, V3, V5, V8 are closed, and the electric on / off valves V2, V4, V6, V7 are opened. When the compressor 8 is operated by the cooling and heating control unit 29, the compressed refrigerant is condensed in the condenser 9 through the electric on-off valve V7 as shown by the arrow in FIG. Then, the pressure is diverted to the electric expansion valves 11 to 13 to further reduce the pressure. Subsequently, each of the electric on-off valves V2, V4, V
6 and the circulation returns to the compressor 8.

【００５６】また、収納庫２、３を冷却庫とし、収納庫
４を加温庫とするときは、冷却加温設定部２８により前
記冷却と加温を設定し、電動開閉弁Ｖ１、Ｖ３、Ｖ６、
Ｖ８を閉じ、電動開閉弁Ｖ２、Ｖ４、Ｖ５、Ｖ７を開
く。そして、冷却加温制御部２９により加温ヒータ１９
ａのみに通電し、圧縮機８を運転すると、図６に矢印で
示す如く圧縮冷媒は電動開閉弁Ｖ７を通り凝縮器９にて
凝縮し、次に電動膨張弁１０に流れて減圧され、次に電
動膨張弁１１、１２に分流して入り減圧され、次に蒸発
器１４、１５にて蒸発する上記した冷却時のように流れ
る。When the storages 2 and 3 are used as cooling storages and the storage 4 is used as a heating storage, the cooling and heating are set by the cooling and heating setting unit 28, and the electric on-off valves V1, V3,. V6,
V8 is closed and the electric on-off valves V2, V4, V5, V7 are opened. Then, the heating heater 19 is controlled by the cooling / heating controller 29.
When the compressor 8 is operated by energizing only the compressor a, the compressed refrigerant is condensed in the condenser 9 through the electric on-off valve V7 as shown by the arrow in FIG. Then, the air flows into the motor-operated expansion valves 11 and 12 to be decompressed, and then flows as in the above-mentioned cooling, which is evaporated in the evaporators 14 and 15.

【００５７】一方、蒸発器１６には電動開閉弁Ｖ５を経
て圧縮冷媒が流れ凝縮して加温ヒータ１９ａとともに収
納庫４を加温し、凝縮後の冷媒は電動膨張弁１１、１２
に分流して流れ蒸発器１４、１５に流入する冷媒に合流
する。このようにして冷却と加温が行われ比較的に冷却
負荷の大きい場合に対応できる。On the other hand, the compressed refrigerant flows into the evaporator 16 via the electric opening / closing valve V5, condenses and heats the storage 4 together with the heating heater 19a, and the condensed refrigerant flows into the electric expansion valves 11 and 12.
And merges with the refrigerant flowing into the evaporators 14 and 15. In this manner, cooling and heating are performed, so that it is possible to cope with a case where the cooling load is relatively large.

【００５８】また、収納庫２を冷却庫とし、収納庫３、
４を加温庫とするときは、冷却加温設定部２８により前
記冷却と加温を設定し、電動開閉弁Ｖ１、Ｖ４、Ｖ６、
Ｖ７を閉じ、電動開閉弁Ｖ２、Ｖ３、Ｖ５、Ｖ７を開
く。そして、冷却加温制御部２９により加温ヒータ１８
ａ、１９ａのみに通電し、圧縮機８を運転すると、図７
に矢印で示す如く圧縮冷媒は蒸発器１５、１６には上記
した加温時のように流れて加温ヒータ１８ａ、１９ａと
ともに収納庫３、４を加温する。The storage 2 is a cooling storage, and the storage 3
When the heating chamber 4 is used as the heating chamber, the cooling and heating are set by the cooling and heating setting section 28, and the electric on-off valves V1, V4, V6,
V7 is closed, and the electric on-off valves V2, V3, V5, V7 are opened. Then, the heating heater 18 is controlled by the cooling / heating controller 29.
a and 19a, the compressor 8 is operated,
As shown by arrows in FIG. 3, the compressed refrigerant flows into the evaporators 15 and 16 as in the case of the above-described heating, and heats the storages 3 and 4 together with the heating heaters 18a and 19a.

【００５９】一方、蒸発器１４には電動開閉弁Ｖ７を通
り凝縮器９にて凝縮し、次に電動膨張弁１０に流れて減
圧された冷媒と、蒸発器１５、１６で凝縮し電動膨張弁
１２、１３にて減圧された冷媒が合流して電動膨張弁１
１に減圧されて流入し蒸発し、電動開閉弁Ｖ２を経て圧
縮機８に戻り冷却が行われる。このようにして冷却と加
温が行われ、比較的に加温負荷の大きい場合に対応でき
る。On the other hand, the evaporator 14 is condensed in the condenser 9 through the electric on-off valve V7, then flows into the electric expansion valve 10 and is decompressed by the evaporators 15 and 16, and is condensed in the evaporators 15 and 16. The refrigerant decompressed at 12 and 13 joins and the electric expansion valve 1
The pressure is reduced to 1 and flows in, evaporates, returns to the compressor 8 via the electric on-off valve V2, and is cooled. In this way, cooling and heating are performed, and it is possible to cope with a case where the heating load is relatively large.

【００６０】特に本発明では、蒸発器１４〜１６と加温
ヒータ１７ａ〜１９ａが冷却加温できるように配置され
ている所定置である自動販売機の収納庫２〜４におい
て、加温ヒータ１７ａ〜１９ａは、冷凍サイクルのヒー
トポンプ方式による各蒸発器１４〜１６の凝縮作用によ
る加温の分だけ発熱容量を小さくして、可燃性冷媒の発
火点より低い発熱容量に設定しているので、冷凍サイク
ルのヒートポンプ方式と加温ヒータにより収納庫内の商
品を暖めている際に、蒸発器１４〜１６より誤って可燃
性冷媒が漏れ加温ヒータ１７ａ〜１９ａに触れたとして
も漏れた可燃性冷媒に引火するのを防止できるととも
に、地球温暖化の防止を図ることができる。In particular, according to the present invention, the heating heaters 17a are provided in the storages 2 to 4 of the vending machines, which are predetermined positions, in which the evaporators 14 to 16 and the heating heaters 17a to 19a are arranged so as to be capable of cooling and heating. 19a to 19a, the heat generation capacity is reduced by the amount of heating by the condensing action of each of the evaporators 14 to 16 by the heat pump method of the refrigeration cycle, and the heat generation capacity is set lower than the ignition point of the flammable refrigerant. Combustible refrigerant leaks from the evaporators 14 to 16 while the product in the storage is being warmed by the cycle heat pump system and the heating heater, and leaks even if it touches the heating heaters 17a to 19a. It is possible to prevent ignition and prevent global warming.

【００６１】（実施の形態３）図８は本発明の請求項４
および請求項９に記載する発明に対応する一実施形態に
おける冷却加温装置である自動販売機の冷却加温システ
ムを示した外観図である。この実施形態の発明は、収納
庫に冷却専用の蒸発器を備えた点が、上記実施の形態２
の発明と異なるだけなので、同一構成および作用効果を
奏する部分には同じ符号を付して詳細な説明を省き、異
なる部分を中心に説明する。(Embodiment 3) FIG. 8 shows a fourth embodiment of the present invention.
FIG. 11 is an external view showing a cooling and heating system of a vending machine, which is a cooling and heating device according to an embodiment corresponding to the invention described in claim 9. The invention according to the second embodiment is characterized in that the storage is provided with an evaporator dedicated to cooling in the storage.
Therefore, portions having the same configuration and operation and effect will be denoted by the same reference numerals, detailed description thereof will be omitted, and different portions will be mainly described.

【００６２】収納庫４は、冷却専用の蒸発器１６を備え
ている。そして、蒸発器１６は加温ヒータを無くし、か
つ蒸発器１６に対応する冷凍サイクルをヒートポンプ方
式に切換られないように蒸発器１６の入口側に電動膨張
弁１３、出口側に電動開閉弁Ｖ６をそれぞれ介して冷凍
サイクルの電動膨張弁１０と圧縮機８の吸引側に接続し
ている。The storage 4 has an evaporator 16 dedicated to cooling. The evaporator 16 is provided with an electric expansion valve 13 on the inlet side and an electric on-off valve V6 on the outlet side so that the refrigeration cycle corresponding to the evaporator 16 is not switched to the heat pump system so that the heating heater is eliminated. They are connected to the electric expansion valve 10 of the refrigeration cycle and the suction side of the compressor 8 via each.

【００６３】また、収納庫２、３は冷凍サイクルのヒー
トポンプ方式でも加温できるように、前記収納庫２、３
に対応する冷凍サイクルの電動開閉弁Ｖ１、Ｖ２、Ｖ
３、Ｖ４、Ｖ７、Ｖ８の開閉を冷却加温設定部２８によ
り制御できる構成にしている。The storages 2 and 3 are heated so that the storages 2 and 3 can be heated even by a heat pump system of a refrigeration cycle.
Motor-operated on-off valves V1, V2, V
3, the opening and closing of V4, V7 and V8 can be controlled by the cooling and heating setting unit 28.

【００６４】上記実施形態において、自動販売機におけ
る収納庫２〜４の冷却と加温につき説明する。収納庫４
は他の収納庫２、３が冷却庫と加温庫への切替えに関係
なく、常に冷却だけの働きをする。すなわち、収納庫
２、３を冷却庫とするときは、冷却加温設定部２８によ
り冷却と設定し、電動開閉弁Ｖ１、Ｖ３、Ｖ８を閉じ、
電動開閉弁Ｖ２、Ｖ４、Ｖ６、Ｖ７を開く。そして、冷
却加温制御部２９により圧縮機８を運転すると、圧縮冷
媒は電動膨張弁Ｖ７を経て凝縮器９に流れ凝縮し、次に
電動膨張弁１０に流れ減圧されて各電動膨張弁１１〜１
３に分流して更に減圧される。続いて、各蒸発器１４〜
１６にて蒸発して各電動開閉弁Ｖ２、Ｖ４、Ｖ６を経て
合流し圧縮機８に戻る循環となる。In the above embodiment, cooling and heating of the storages 2 to 4 in the vending machine will be described. Storage 4
, Always works only for cooling, regardless of whether the other storages 2 and 3 are switched to the cooling storage and the heating storage. That is, when the storages 2 and 3 are used as the cooling storage, the cooling and heating setting unit 28 sets the cooling and the electric on-off valves V1, V3 and V8 are closed,
The electric on-off valves V2, V4, V6, V7 are opened. Then, when the compressor 8 is operated by the cooling and heating control unit 29, the compressed refrigerant flows through the electric expansion valve V7 to the condenser 9 and condenses, then flows to the electric expansion valve 10 and is decompressed, and each of the electric expansion valves 11 to 11 is depressurized. 1
Then, the pressure is further reduced. Then, each evaporator 14-
At 16, the water vapor evaporates and merges via the electric on-off valves V 2, V 4, V 6 and returns to the compressor 8.

【００６５】また、収納庫２、３を加温庫とするとき
は、冷却加温設定部２８により前記加温を設定し、電動
開閉弁Ｖ２、Ｖ４、Ｖ７を閉じ、電動開閉弁Ｖ１、Ｖ
３、Ｖ８を開く。そして、冷却加温制御部２９により加
温ヒータ１７ａ、１８ａに通電し、圧縮機８を運転する
と、圧縮冷媒は電動開閉弁Ｖ１、Ｖ３を経て蒸発器１
５、１６に流れ凝縮して加温ヒータ１７ａ、１８ａとと
もに収納庫２、３を加温する。When the storages 2 and 3 are used as heating chambers, the heating is set by the cooling and heating setting section 28, the electric on-off valves V2, V4 and V7 are closed, and the electric on-off valves V1 and V
3. Open V8. Then, when the compressor 8 is operated by energizing the heating heaters 17 a and 18 a by the cooling and heating control unit 29, the compressed refrigerant passes through the electric on-off valves V 1 and V 3 and the evaporator 1.
The condensed water flows into the storages 5 and 16 and is heated together with the heaters 17a and 18a.

【００６６】一方、蒸発器１６には蒸発器１５、１６で
凝縮し電動膨張弁１１、１２で減圧されて合流した一部
の冷媒が電動膨張弁１３に減圧されて流入し蒸発して冷
却を行い、電動膨張弁１０、凝縮器９、電動開閉弁Ｖ８
を経て流れる一部の冷媒と合流し圧縮機８に戻る循環と
なる。もちろん、収納庫２、３のいずれかを冷却庫と加
温庫に切替えることも自由にできることは、詳細に説明
するまでもなく各実施形態の説明より明らかである。On the other hand, a part of the refrigerant condensed by the evaporators 15 and 16 and decompressed and joined by the electric expansion valves 11 and 12 flows into the evaporator 13 after being decompressed and flows into the evaporator 13 for evaporation and cooling. Then, the electric expansion valve 10, the condenser 9, the electric on-off valve V8
And a part of the refrigerant flowing through the compressor 8 is returned to the compressor 8. Of course, it is clear from the description of each embodiment that any one of the storages 2 and 3 can be freely switched between the cooling storage and the heating storage without being described in detail.

【００６７】特に本発明では、蒸発器１４、１５と加温
ヒータ１７ａ、１８ａが冷却と加温できるように配置さ
れている所定置である自動販売機の収納庫２、３におい
て、加温ヒータ１７ａ、１８ａは、冷凍サイクルのヒー
トポンプ方式による各蒸発器１４、１５の凝縮作用によ
る加温の分だけ発熱容量を小さくして、可燃性冷媒の発
火点より低い発熱容量に設定しているので、冷凍サイク
ルのヒートポンプ方式と加温ヒータにより収納庫内の商
品を暖めている際に、蒸発器１４、１５より誤って可燃
性冷媒が漏れ加温ヒータ１７ａ、１８ａに触れたとして
も漏れた可燃性冷媒に引火するのを防止できるととも
に、地球温暖化の防止を図ることができる。In particular, according to the present invention, the heating heaters are provided in the storages 2 and 3 of the vending machine, which are predetermined positions, in which the evaporators 14 and 15 and the heating heaters 17a and 18a are arranged so as to be able to cool and heat. Since 17a and 18a reduce the heat generation capacity by the amount of heating by the condensing action of each evaporator 14 and 15 by the heat pump method of the refrigeration cycle, and set the heat generation capacity lower than the ignition point of the flammable refrigerant, The flammable refrigerant leaks from the evaporators 14 and 15 accidentally while the products in the storage are being warmed by the heat pump system of the refrigeration cycle and the heating heater, and leaks even if it touches the heating heaters 17a and 18a. It is possible to prevent ignition of the refrigerant and to prevent global warming.

【００６８】（実施の形態４）図９は本発明の請求項５
および請求項９に記載する発明に対応する一実施形態に
おける冷却加温装置である自動販売機の冷却加温システ
ムを示した外観図である。この実施形態の発明は、収納
庫を加温庫にするため冷凍サイクルをヒートポンプ方式
に切替えられるように構成し、通電する加温ヒータを無
くした点が、上記実施の形態２および実施の形態３の発
明と異なるだけなので、同一構成および作用効果を奏す
る部分には同じ符号を付して詳細な説明を省き、異なる
部分を中心に説明する。(Embodiment 4) FIG. 9 shows a fifth embodiment of the present invention.
FIG. 11 is an external view showing a cooling and heating system of a vending machine, which is a cooling and heating device according to an embodiment corresponding to the invention described in claim 9. The invention of this embodiment is configured such that the refrigerating cycle can be switched to a heat pump system in order to make the storage a heating chamber, and the heating heater for energizing is eliminated. Therefore, portions having the same configuration and operation and effect will be denoted by the same reference numerals, detailed description thereof will be omitted, and different portions will be mainly described.

【００６９】収納庫４は、実施の形態３と同じように冷
却専用の蒸発器１６を備えている。また、収納庫２、３
は加温ヒータを無くし、冷凍サイクルのヒートポンプ方
式のみで加温できるように前記収納庫２、３に対応する
冷凍サイクルの電動開閉弁Ｖ１、Ｖ２、Ｖ３、Ｖ４、Ｖ
７、Ｖ８の開閉を冷却加温設定部２８により制御できる
構成にしている。そして、蒸発器１６は加温ヒータを無
くし、かつ蒸発器１６に対応する冷凍サイクルをヒート
ポンプ方式に切換られないように蒸発器１６の入口側に
電動膨張弁１３、出口側に電動開閉弁Ｖ６をそれぞれ介
して冷凍サイクルの電動膨張弁１０と圧縮機８の吸引側
に接続している。The storage 4 has an evaporator 16 dedicated to cooling, as in the third embodiment. In addition, storages 2, 3
Is a motor-operated on-off valve V1, V2, V3, V4, V of the refrigeration cycle corresponding to the storages 2, 3 so that the heating heater can be eliminated and the refrigeration cycle can be heated only by the heat pump system.
7, the opening and closing of V8 can be controlled by the cooling and heating setting unit 28. The evaporator 16 is provided with an electric expansion valve 13 on the inlet side and an electric on-off valve V6 on the outlet side so that the refrigeration cycle corresponding to the evaporator 16 is not switched to the heat pump system so that the heating heater is eliminated. They are connected to the electric expansion valve 10 of the refrigeration cycle and the suction side of the compressor 8 via each.

【００７０】上記実施形態において、自動販売機におけ
る収納庫２〜４の冷却と加温につき説明する。収納庫４
は他の収納庫２、３が冷却庫と加温庫への切替えに関係
なく、常に冷却だけの働きをする。すなわち、収納庫４
とともに収納庫２、３を冷却庫とするときは、冷却加温
設定部２８により冷却と設定し、電動開閉弁Ｖ１、Ｖ
３、Ｖ８を閉じ、電動開閉弁Ｖ２、Ｖ４、Ｖ６、Ｖ７を
開く。そして、冷却加温制御部２９により圧縮機８を運
転すると、圧縮冷媒は電動膨張弁Ｖ７を経て凝縮器９に
流れ凝縮し、次に電動膨張弁１０に流れ減圧されて各電
動膨張弁１１〜１３に分流して更に減圧される。続い
て、各蒸発器１４〜１６にて蒸発して各電動開閉弁Ｖ
２、Ｖ４、Ｖ６を経て合流し圧縮機８に戻る循環とな
る。In the above embodiment, cooling and heating of the storages 2 to 4 in the vending machine will be described. Storage 4
, Always works only for cooling, regardless of whether the other storages 2 and 3 are switched to the cooling storage and the heating storage. That is, the storage 4
When the storages 2 and 3 are used as the cooling storages, the cooling and heating setting unit 28 sets the cooling and sets the electric open / close valves V1 and V
3. Close V8 and open the electric on-off valves V2, V4, V6, V7. Then, when the compressor 8 is operated by the cooling and heating control unit 29, the compressed refrigerant flows through the electric expansion valve V7 to the condenser 9 and condenses, then flows to the electric expansion valve 10 and is decompressed, and each of the electric expansion valves 11 to 11 is depressurized. Then, the pressure is further reduced. Subsequently, each of the electric on-off valves V
The circulation is performed after the flow passes through 2, V4, and V6, and returns to the compressor 8.

【００７１】また、収納庫２、３を加温庫とするとき
は、冷却加温設定部２８により前記加温を設定し、電動
開閉弁Ｖ２、Ｖ４、Ｖ７を閉じ、電動開閉弁Ｖ１、Ｖ
３、Ｖ８を開く。そして、冷却加温制御部２９により圧
縮機８を運転すると、圧縮冷媒は電動開閉弁Ｖ１、Ｖ３
を経て蒸発器１５、１６に流れ凝縮し収納庫２、３を加
温する。When the storages 2 and 3 are used as heating chambers, the heating is set by the cooling and heating setting section 28, the electric on-off valves V2, V4 and V7 are closed, and the electric on-off valves V1 and V
3. Open V8. When the compressor 8 is operated by the cooling and heating control unit 29, the compressed refrigerant is supplied to the electric on-off valves V1 and V3.
, And flows into the evaporators 15 and 16 to condense and heat the storages 2 and 3.

【００７２】一方、蒸発器１６には蒸発器１５、１６で
凝縮し電動膨張弁１１、１２で減圧されて合流した一部
の冷媒が電動膨張弁１３に減圧されて流入し蒸発して冷
却を行い、電動膨張弁１０、凝縮器９、電動開閉弁Ｖ８
を経て流れる一部の冷媒と合流し圧縮機８に戻る循環と
なる。もちろん、収納庫２、３のいずれかを冷却庫と加
温庫に切替えることも自由にできることは、詳細に説明
するまでもなく各実施形態の説明より明らかである。On the other hand, a part of the refrigerant condensed by the evaporators 15 and 16 and decompressed and joined by the electric expansion valves 11 and 12 flows into the evaporator 16 while being reduced in pressure and flows into the electric expansion valve 13 to evaporate and cool. Then, the electric expansion valve 10, the condenser 9, the electric on-off valve V8
And a part of the refrigerant flowing through the compressor 8 is returned to the compressor 8. Of course, it is clear from the description of each embodiment that any one of the storages 2 and 3 can be freely switched between the cooling storage and the heating storage without being described in detail.

【００７３】特に本発明では、蒸発器１４、１５が冷却
加温できるように配置されている所定置である自動販売
機の収納庫２、３において、冷凍サイクルのヒートポン
プ方式による各蒸発器１４、１５の凝縮作用による加温
だけなので、冷凍サイクルのヒートポンプ方式により収
納庫内の商品を暖めている際に、蒸発器１４、１５より
誤って可燃性冷媒が漏れたとしても収納庫内には直接に
発火源となるものが存在しないから、漏れた可燃性冷媒
に引火するのを確実に防止できるとともに、地球温暖化
の防止を図ることができる。In particular, in the present invention, in the storages 2 and 3 of the vending machine, which are arranged in such a manner that the evaporators 14 and 15 can be cooled and heated, each of the evaporators 14 and 15 by the heat pump method of the refrigerating cycle is used. Because only the heating by the condensation action of 15 is performed, even if the flammable refrigerant leaks from the evaporators 14 and 15 by mistake when the product in the storage is being warmed by the heat pump method of the refrigerating cycle, it is directly in the storage. Since there is no ignition source, the ignition of the flammable refrigerant that has leaked can be reliably prevented and global warming can be prevented.

【００７４】（実施の形態５）図１０は本発明の請求項
８および請求項９に記載する発明に対応する一実施形態
における冷却加温装置である自動販売機の冷却加温シス
テムを示した外観図である。この実施形態の発明は、冷
凍サイクルを２次冷媒方式にして収納庫に通じて設けた
熱交換器に可燃性冷媒を循環させないようにした点が、
上記各実施の形態の発明と異なるだけなので、同一構成
および作用効果を奏する部分には同じ符号を付して詳細
な説明を省き、異なる部分を中心に説明する。(Embodiment 5) FIG. 10 shows a cooling and heating system of a vending machine, which is a cooling and heating device according to an embodiment corresponding to the eighth and ninth aspects of the present invention. It is an external view. The invention of this embodiment is characterized in that the refrigeration cycle is set to the secondary refrigerant system and the flammable refrigerant is not circulated to the heat exchanger provided through the storage,
Since the present embodiment differs from the above embodiments only, parts having the same configuration and operation and effect are denoted by the same reference numerals, detailed description thereof will be omitted, and different parts will be mainly described.

【００７５】冷凍サイクルは、圧縮機８、凝縮器９、電
動膨張弁１０、間接式の補助熱交換器３６を配管で環状
回路に接続し、可燃性冷媒を含む混合冷媒あるいは単一
成分からなる可燃性冷媒を前記環状回路に封入してい
る。１４ａ、１５ａ、１６ａは各収納庫２、３、４に通
じて庫内を冷却する熱交換器で、各流量制御弁１１ａ、
１２ａ、１３ａ、共通の循環ポンプ３７、前記補助熱交
換器３６と配管により、前記各熱交換器１４ａ、１５
ａ、１６ａにそれぞれ対応する環状回路に接続し、不凍
液の冷媒を封入している。また、加温ヒータ１７ｂ、１
８ｂ、１９ｂは上記各実施形態の加温ヒータのように可
燃性冷媒への引火防止を考慮することのない、発熱容量
に制限を受けない構成にしている。また、本冷凍サイク
ルの管回路に封入している可燃性冷媒の量は、直接に熱
交換器１４ａ〜１６ａの冷媒回路に循環する量を必要と
しない少ない値にしてある。In the refrigeration cycle, the compressor 8, the condenser 9, the electric expansion valve 10, and the indirect auxiliary heat exchanger 36 are connected to an annular circuit by piping, and are composed of a mixed refrigerant containing a combustible refrigerant or a single component. A flammable refrigerant is sealed in the annular circuit. Reference numerals 14a, 15a, and 16a denote heat exchangers that communicate with the storages 2, 3, and 4 to cool the inside of the storages.
12a, 13a, a common circulation pump 37, the auxiliary heat exchanger 36, and piping, the heat exchangers 14a, 15a
a, 16a are connected to the corresponding annular circuits, respectively, and the refrigerant of the antifreeze is sealed. The heating heaters 17b, 1
8b and 19b have a configuration in which the heat generation capacity is not limited as in the heating heaters of the above embodiments, without taking into consideration the prevention of ignition of the combustible refrigerant. Further, the amount of the flammable refrigerant sealed in the pipe circuit of the present refrigeration cycle is set to a small value that does not require the amount circulating directly to the refrigerant circuits of the heat exchangers 14a to 16a.

【００７６】上記実施形態において、収納庫２〜４を冷
却庫とするときは、冷却加温設定部２８で全部冷却と設
定し、冷却加温制御部２９により圧縮機８、循環ポンプ
３７を運転する。そして、圧縮機８より吐出された圧縮
冷媒は凝縮器９で凝縮し電動膨張弁１０で減圧され、次
に補助熱交換器３６で蒸発して圧縮機８に戻る循環にな
る。一方、２次冷媒回路にある各熱交換器１４ａ〜１６
ａには循環ポンプ３７により冷媒が循環しており、この
循環する冷媒が補助熱交換器３６で蒸発熱により冷却さ
れ各熱交換器１４ａ〜１６ａにて放熱して庫内を冷却す
る。In the above embodiment, when the storages 2 to 4 are used as the cooling storages, the cooling and heating setting section 28 sets all cooling, and the cooling and heating control section 29 operates the compressor 8 and the circulation pump 37. I do. Then, the compressed refrigerant discharged from the compressor 8 is condensed in the condenser 9, decompressed by the electric expansion valve 10, and then evaporated in the auxiliary heat exchanger 36 to return to the compressor 8. On the other hand, each heat exchanger 14a-16 in the secondary refrigerant circuit
A refrigerant is circulated in a by a circulation pump 37, and the circulating refrigerant is cooled by the heat of evaporation in the auxiliary heat exchanger 36, and radiates heat in each of the heat exchangers 14a to 16a to cool the inside of the refrigerator.

【００７７】また、収納庫２〜４を加温庫とするとき
は、冷却加温設定部２８で全部加温と設定し、冷却加温
制御部２９により各加温ヒータ１７ｂ、１８ｂ、１９ｂ
に通電して庫内を暖める。When the storages 2 to 4 are to be used as heating chambers, the cooling and heating setting section 28 sets all of them to be heated, and the cooling and heating control section 29 controls the heating heaters 17b, 18b, and 19b.
Apply electricity to warm the interior.

【００７８】特に本発明では、熱交換器１４ａ〜１６ａ
と加温ヒータ１７ｂ〜１９ｂが冷却加温できるように配
置されている所定置である自動販売機の収納庫２〜４に
おいて、熱交換器１４ａ〜１６ａは冷凍サイクルの２次
冷媒回路にあって不凍液の冷媒を封入しているので、収
納庫内の商品を冷やしている際に、熱交換器１４ａ〜１
６ａより誤って冷媒が漏れても可燃性冷媒のような問題
が起こらないから極めて安全にできるとともに、加温ヒ
ータ１７ｂ〜１９ｂも可燃性冷媒に引火するのを抑制す
ることを考慮する必要がないので、加温のみ考慮した設
計が可能となり、収納庫の効率的な加温ができるととも
に、地球温暖化防止を図ることができる。Particularly, in the present invention, the heat exchangers 14a to 16a
The heat exchangers 14a to 16a are located in the secondary refrigerant circuits of the refrigeration cycle in the storages 2 to 4 of the vending machine, which are predetermined positions where the heaters 17b to 19b are arranged so as to be capable of cooling and heating. Since the refrigerant of the antifreeze liquid is sealed, the heat exchangers 14a to 14a-1
Even if the refrigerant leaks accidentally from 6a, the problem such as the flammable refrigerant does not occur, so that it can be made extremely safe, and it is not necessary to consider that the heating heaters 17b to 19b also suppress ignition of the flammable refrigerant. Therefore, it is possible to perform a design in which only heating is taken into consideration, and it is possible to efficiently heat the storage and to prevent global warming.

【００７９】また、冷凍サイクルの管回路の可燃性冷媒
の量は、直接、熱交換器１４ａ〜１６ａの管回路にも循
環する量を考慮する必要のない冷凍サイクルの２次冷媒
方式なので、万一、可燃性冷媒が漏れた場合であっても
量が少ないから引火を抑制できる。The amount of the flammable refrigerant in the tube circuit of the refrigeration cycle is determined by the secondary refrigerant system of the refrigeration cycle, which does not need to consider the amount circulated directly to the tube circuits of the heat exchangers 14a to 16a. First, even when the flammable refrigerant leaks, ignition is suppressed because the amount is small.

【００８０】なお、本実施形態では、熱交換器１４ａ〜
１６ａを使用して収納庫を冷却する説明をしたが、冷凍
サイクルをヒートポンプ方式に切替えられるようにして
加温することもできる。また、この冷却と加温状態にお
いて、各収納庫２〜４の各負荷をセンサで検出し、この
検出した負荷量に応じて各流量制御弁１１ａ〜１１ｃの
開度の度合いを制御し、効率的な冷却を制御することも
可能である。In this embodiment, the heat exchangers 14a to 14a
Although the case where the storage is cooled using the 16a has been described, the refrigerating cycle can be switched to the heat pump type to heat the storage. Further, in this cooling and heating state, each load of each of the storages 2 to 4 is detected by a sensor, and the degree of opening of each of the flow control valves 11a to 11c is controlled in accordance with the detected load, thereby improving the efficiency. It is also possible to control effective cooling.

【００８１】（実施の形態６）図１は、本発明の請求項
１０および請求項１２、請求項１３に記載する発明に対
応する一実施形態における冷却加温装置である自動販売
機の冷却加温システムを示した外観図、図１３は同自動
販売機の制御ブロック図である。(Embodiment 6) FIG. 1 shows a cooling and heating apparatus of a vending machine which is a cooling and heating apparatus according to an embodiment corresponding to the tenth, twelfth and thirteenth aspects of the present invention. FIG. 13 is an external view showing the temperature system, and FIG. 13 is a control block diagram of the vending machine.

【００８２】１０１は冷却加温装置としての自動販売機
の本体で、上部に真中と左右の各収納庫１０２，１０
３，１０４と下部に機械室１０５を有している。収納庫
１０２，１０３，１０４は外郭と区画壁をなす内壁１０
６ａ、外壁１０６ｂ、その間の独立気泡の発泡断熱体１
０７からなる断熱構造体である。そして、自動販売機本
体１０１は冷却加温システムを、圧縮機１０８、庫外熱
交換器１０９、減圧手段としての電動膨張弁１１０，１
１１，１１２、庫内熱交換器１１３，１１４，１１５、
電磁弁Ｖ１〜Ｖ８を配管で環状回路に接続し、可燃性冷
媒を封入してなるヒートポンプサイクルで構成する。Reference numeral 101 denotes a main body of a vending machine as a cooling and heating device.
3 and 104 and a machine room 105 below. The storages 102, 103, and 104 are the inner wall 10 that forms a partition wall with the outer shell.
6a, outer wall 106b, closed cell foam insulation 1 therebetween
07 is a heat insulating structure. The vending machine main body 101 includes a cooling and heating system including a compressor 108, an external heat exchanger 109, and electric expansion valves 110 and 1 serving as pressure reducing means.
11, 112, internal heat exchangers 113, 114, 115,
The solenoid valves V1 to V8 are connected to an annular circuit by piping, and are constituted by a heat pump cycle in which a flammable refrigerant is filled.

【００８３】すなわち、庫内熱交換器１１３，１１４，
１１５は、それぞれ収納庫１０２，１０３，１０４の底
部に配置され、収納庫１０２，１０３，１０４を冷却と
加温できるように配置してあり、そして、各収納庫１０
２，１０３，１０４のヒートポンプサイクルの環状回路
は同じなので収納庫１０２の例を以って説明する。That is, the internal heat exchangers 113, 114,
115 is arranged at the bottom of the storages 102, 103, 104, respectively, so that the storages 102, 103, 104 can be cooled and heated.
Since the annular circuits of the heat pump cycles 2, 103, and 104 are the same, an example of the storage 102 will be described.

【００８４】圧縮機１０８より吐出された圧縮冷媒は、
電磁弁Ｖ７より庫外熱交換器１０９に流入して凝縮さ
れ、電動膨張弁１１０で減圧されて庫内熱交換器１１３
に流入して蒸発し、電磁弁Ｖ２を経て圧縮機１０８に吸
入される冷却作用の循環回路をなすように構成され、こ
の時、電磁弁Ｖ１，Ｖ８は閉じるように設定している。The compressed refrigerant discharged from the compressor 108 is
The heat flows into the external heat exchanger 109 from the solenoid valve V7, is condensed, is decompressed by the electric expansion valve 110, and is decompressed by the internal heat exchanger 113.
, Evaporates, and forms a circulating circuit of a cooling action to be sucked into the compressor 108 via the solenoid valve V2. At this time, the solenoid valves V1 and V8 are set to be closed.

【００８５】また、このヒートポンプサイクルは、庫外
熱交換器１０９の入口側と圧縮機１０８の吸入側とを電
磁弁Ｖ８で接続し、かつ圧縮機１０８の吐出側と庫内熱
交換器１１３の出口側とを電磁弁Ｖ１で接続して、圧縮
機１０８より吐出された圧縮冷媒が電磁弁Ｖ１より庫内
熱交換器１１３に流入して凝縮され、電動膨張弁１１０
で減圧されて庫外熱交換器１０９に流入して蒸発し、電
磁弁Ｖ８を経て圧縮機１０８に吸入される加温作用の循
環回路に構成され、この時、電磁弁Ｖ２，Ｖ７は閉じる
ように設定している。In this heat pump cycle, the inlet side of the external heat exchanger 109 and the suction side of the compressor 108 are connected by a solenoid valve V8, and the discharge side of the compressor 108 and the internal heat exchanger 113 The outlet side is connected by an electromagnetic valve V1, and the compressed refrigerant discharged from the compressor 108 flows into the internal heat exchanger 113 from the electromagnetic valve V1 and is condensed.
, And flows into the external heat exchanger 109, evaporates, and is configured as a heating circulation circuit that is sucked into the compressor 108 via the electromagnetic valve V8. At this time, the electromagnetic valves V2 and V7 are closed. Is set to

【００８６】以上説明した冷却加温システムのヒートポ
ンプサイクルを構成する圧縮機１０８、庫外熱交換器１
０９、電動膨張弁１１０，１１１，１１２、電磁弁Ｖ１
〜Ｖ８、そして庫内熱交換器１１３，１１４，１１５を
含む各配管との多数の溶接部１１６と圧縮機１０８、庫
外熱交換器１０９、電動膨張弁１１０，１１１，１１
２、電磁弁Ｖ１〜Ｖ８は、通気口１１７、１１８を通じ
て外気へ常に通じている機械室１０５に配置している。The compressor 108 and the external heat exchanger 1 constituting the heat pump cycle of the cooling and heating system described above
09, electric expansion valves 110, 111, 112, solenoid valve V1
To V8, and a large number of welds 116 with each pipe including the internal heat exchangers 113, 114, 115, the compressor 108, the external heat exchanger 109, the electric expansion valves 110, 111, 11
2. The solenoid valves V1 to V8 are arranged in the machine room 105 which always communicates with the outside air through the ventilation holes 117 and 118.

【００８７】１１９，１２０，１２１は各収納庫１０
２，１０３，１０４の底部に設けた庫内ファンで、モー
ルドモータを使用して可燃性冷媒に引火しないように
し、庫内熱交換器１１３，１１４，１１５と熱交換した
冷気または暖気を、各収納庫１０２，１０３，１０４に
強制的に循環させる。１２２は機械室１０５に設けた庫
外ファンで、モールドモータを使用して可燃性冷媒に引
火しないようにし、かつ通気口１１７，１１８を通じて
圧縮機１０８、庫外熱交換器１０９の熱を放散するもの
である。Reference numerals 119, 120, and 121 denote the respective storages 10.
The in-compartment fan provided at the bottom of each of 2, 103, 104 prevents the flammable refrigerant from being ignited by using a molded motor, and cools or warms the heat exchanged with the in-compartment heat exchangers 113, 114, 115. Forcibly circulate through the storages 102, 103, 104. Reference numeral 122 denotes an external fan provided in the machine room 105, which uses a molded motor to prevent flammable refrigerant from being ignited and dissipates the heat of the compressor 108 and the external heat exchanger 109 through vents 117 and 118. Things.

【００８８】１２３は収納庫に設けた庫内温度センサ
（図示せず）および商品温度センサ（図示せず）の検出
温度に基づき、圧縮機１０８、電動膨張弁１１０，１１
１，１１２、電磁弁Ｖ１〜Ｖ８、庫内ファン１１９，１
２０，１２１、庫外ファン１２２の動作を制御する冷却
加温制御部である。１２４は各収納庫１０２，１０３，
１０４の販売棚に収納した商品である。Reference numeral 123 denotes a compressor 108 and electric expansion valves 110 and 11 based on the temperatures detected by an internal temperature sensor (not shown) and a product temperature sensor (not shown) provided in the storage.
1,112, solenoid valves V1 to V8, internal fan 119,1
20, 121, and a cooling and heating control unit that controls the operation of the external fan 122. 124 is each storage 102,103,
This is a product stored in the sales shelf 104.

【００８９】上記実施形態において、自動販売機におけ
る収納庫１０２，１０３，１０４の冷却と加温につき説
明する。すなわち、収納庫１０２，１０３，１０４の全
部を冷却庫とするときは、冷却加温制御部１２３により
全部冷却と設定し、電磁弁Ｖ１、Ｖ３、Ｖ５、Ｖ８を閉
じ、電磁弁Ｖ２，Ｖ４，Ｖ６，Ｖ７を開く。そして、圧
縮機１０８を運転すると、圧縮冷媒は電磁弁Ｖ７を通り
庫外熱交換器１０９にて凝縮し、各電動膨張弁１１０，
１１１，１１２に分流して減圧される。続いて、各庫内
熱交換器１１３，１１４，１１５にて蒸発して各電磁弁
Ｖ２，Ｖ４，Ｖ６を経て合流し圧縮機１０８に戻る。In the above embodiment, cooling and heating of the storages 102, 103 and 104 in the vending machine will be described. That is, when all of the storages 102, 103, and 104 are used as the cooling storages, the cooling and heating control unit 123 sets all the coolings, closes the solenoid valves V1, V3, V5, and V8, and sets the solenoid valves V2, V4, and V4. Open V6 and V7. Then, when the compressor 108 is operated, the compressed refrigerant is condensed in the external heat exchanger 109 through the solenoid valve V7, and each of the electric expansion valves 110,
The pressure is reduced by being divided into 111 and 112. Subsequently, the refrigerant evaporates in the internal heat exchangers 113, 114, and 115, merges through the electromagnetic valves V2, V4, and V6, and returns to the compressor.

【００９０】また、収納庫１０２，１０３，１０４の全
部を加温庫とするときは、冷却加温制御部１２３により
全部加温と設定し、電磁弁Ｖ２，Ｖ４，Ｖ６，Ｖ７を閉
じ、電磁弁Ｖ１，Ｖ３，Ｖ５，Ｖ８を開く。そして、圧
縮機１０８を運転すると、圧縮冷媒は電磁弁Ｖ１，Ｖ
３，Ｖ５に分流して流れ、各庫内熱交換器１１３，１１
４，１１５にて凝縮する。続いて、各電動膨張弁１１
０，１１１，１１２により減圧されて合流し、庫外熱交
換器１０９にて蒸発して電磁弁Ｖ８を通り圧縮機１０８
に戻る。When all of the storages 102, 103, and 104 are to be heated, the cooling and heating control unit 123 sets all of them to be heated, and the solenoid valves V2, V4, V6, and V7 are closed, and the electromagnetic valves V2, V4, V6, and V7 are closed. Open valves V1, V3, V5, V8. When the compressor 108 is operated, the compressed refrigerant is supplied to the solenoid valves V1 and V1.
3, V5, and flows into each of the internal heat exchangers 113, 11
Condenses at 4,115. Subsequently, each electric expansion valve 11
The pressure is reduced by 0, 111, and 112, and they are combined.
Return to

【００９１】更に、収納庫１０２，１０３，１０４の一
部を冷却庫と加温庫にすることも可能で、それは冷却加
温制御部１２３により行い、各庫内熱交換器１１３，１
１４，１１５に対応する電動膨張弁１１０，１１１，１
１２の開度、電磁弁Ｖ１〜Ｖ８の開閉を制御して各庫内
熱交換器１１３，１１４，１１５に対応する個々のヒー
トポンプサイクルに冷媒を循環させて行うものである。Further, a part of the storages 102, 103, and 104 can be used as a cooling storage and a heating storage, which is performed by the cooling and heating control unit 123, and the heat exchangers 113, 1 in each storage.
Electric expansion valves 110, 111, 1 corresponding to 14, 115
The control is performed by circulating the refrigerant through the individual heat pump cycles corresponding to the in-compartment heat exchangers 113, 114, and 115 by controlling the opening degree of the valve 12 and the opening and closing of the solenoid valves V1 to V8.

【００９２】特に本発明では、庫内熱交換器１１３，１
１４，１１５が冷却加温できるように配置されている自
動販売機の収納庫１０２，１０３，１０４において、ヒ
ートポンプ方式による各庫内熱交換器１１３，１１４，
１１５の凝縮作用による加温だけなので、加温ヒータで
加温する場合と比較して省エネルギー化が図れるととも
に、加温ヒータが不要となり低コスト化を実現でき、庫
内熱交換器１１３，１１４，１１５より誤って可燃性冷
媒が漏れたとしても、可燃性冷媒に引火する危険性を低
下させることができ、地球温暖化の防止を図ることがで
きる。In particular, in the present invention, the internal heat exchangers 113, 1
In the vending machine storages 102, 103, and 104 in which the cooling units 14 and 115 can be cooled and heated, each of the internal heat exchangers 113, 114, and 114 by the heat pump method.
Since only the heating by the condensing action of 115 is performed, energy saving can be achieved as compared with the case of heating with a heating heater, and a heating heater is not required, so that cost reduction can be realized, and the internal heat exchangers 113, 114, Even if the flammable refrigerant leaks accidentally from 115, the risk of igniting the flammable refrigerant can be reduced, and global warming can be prevented.

【００９３】また、本発明では、電磁弁Ｖ１〜Ｖ８、電
動膨張弁１１０，１１１，１１２を、通気口１１７，１
１８を介して常に外気へ連通している機械室１０５に配
置しているので、自動販売機の収納庫１０２，１０３，
１０４において、可燃性冷媒が収納庫内に漏れる恐れの
高い部分が無くなり、収納庫１０２，１０３，１０４に
おける可燃性冷媒への引火の危険性を低下させ、安全性
を高めることができる。In the present invention, the solenoid valves V1 to V8 and the electric expansion valves 110, 111, 112 are connected to the ventilation holes 117, 1
The vending machine is located in the machine room 105 which is always in communication with the outside air via the vending machine 18.
At 104, there is no portion where the flammable refrigerant is likely to leak into the storage, and the danger of ignition of the flammable refrigerant in the storages 102, 103, 104 can be reduced, and safety can be improved.

【００９４】そして、電磁弁Ｖ１〜Ｖ８、電動膨張弁１
１０，１１１，１１２の溶接部等から誤って可燃性冷媒
が漏れたとしても、庫外ファン１２３による流通、また
は自然対流により流通する外気による拡散で、漏洩冷媒
の濃度が減少し、電磁弁Ｖ１〜Ｖ８、電動膨張弁１１
１，１１２，１１３を着火源とする引火の危険性を低下
させることができる。Then, the solenoid valves V1 to V8, the electric expansion valve 1
Even if the flammable refrigerant leaks from the welds 10, 111, and 112 by mistake, the concentration of the leaked refrigerant decreases due to the circulation by the external fan 123 or the diffusion by the outside air flowing by natural convection, and the electromagnetic valve V1 To V8, electric expansion valve 11
It is possible to reduce the risk of ignition using 1,112,113 as an ignition source.

【００９５】また、庫内熱交換器１１３，１１４，１１
５は従来のフィン式熱交換器を使用すると、フィンを貫
通している蛇行状の管が、一般的には左右の蛇行部分で
Ｕ字状のリターンベンドを溶接しているため、この溶接
部分が収納庫１０２，１０３，１０４に残ることになり
好ましくない。Further, the internal heat exchangers 113, 114, 11
5 uses a conventional fin-type heat exchanger, the meandering pipe penetrating the fins is generally welded with a U-shaped return bend at the right and left meandering parts. Undesirably remains in the storages 102, 103, 104.

【００９６】そこで本発明では、フィンを貫通している
蛇行状の管を、１本の長尺の管を蛇行させて形成し、こ
の両端を機械室１０５において、ヒートポンプサイクル
を構成する電動膨張弁１１０，１１１，１１２と電磁弁
Ｖ１〜Ｖ６に接続して溶接部１１６としている。従っ
て、庫内熱交換器１１４，１１５，１１６に従来のフィ
ン式熱交換器を使用した場合より、更に漏れた可燃性冷
媒への引火の危険性を低下させることができる。Therefore, in the present invention, a meandering tube penetrating the fin is formed by meandering one long tube, and both ends of the meandering tube are formed in the machine room 105 in the electric expansion valve constituting the heat pump cycle. 110, 111, 112 and the solenoid valves V1 to V6 are connected to form a welded portion 116. Therefore, the danger of ignition of the leaked combustible refrigerant can be further reduced as compared with the case where the conventional fin-type heat exchanger is used for the internal heat exchangers 114, 115, and 116.

【００９７】（実施の形態７）図１４は、本発明の請求
項１０および請求項１１、請求項１２、請求項１３に記
載する発明に対応する一実施形態における冷却加温装置
である自動販売機の冷却加温システムを示した外観図、
図１５は同自動販売機の制御ブロック図である。(Embodiment 7) FIG. 14 shows an automatic vending machine which is a cooling and heating apparatus according to an embodiment corresponding to the tenth, eleventh, twelfth and thirteenth aspects of the present invention. External view showing the cooling and heating system of the machine,
FIG. 15 is a control block diagram of the vending machine.

【００９８】この実施形態の発明は、庫外熱交換器の出
口側に庫外側電動膨張弁を設け、庫内熱交換器の入口側
にある電動膨張弁を庫内側電動膨張弁とした点が、上記
実施の形態６の発明と異なるだけなので、同一構成およ
び作用効果を奏する部分には同じ符号を付して詳細な説
明を省き、異なる部分を中心に説明する。[0098] The invention of this embodiment is characterized in that an electric outside expansion valve is provided on the outlet side of the external heat exchanger, and the electric expansion valve on the inlet side of the internal heat exchanger is used as the electric inside expansion valve. Since the present embodiment is different from the sixth embodiment only, portions having the same configuration and operation and effect are denoted by the same reference numerals, detailed description thereof will be omitted, and different portions will be mainly described.

【００９９】自動販売機本体１０１は冷却加温システム
を、圧縮機１０８、庫外熱交換器１０９、減圧手段とし
ての庫外側電動膨張弁１２５および庫内側電動膨張弁１
２６，１２７，１２８、庫内熱交換器１１３，１１４，
１１５、電磁弁Ｖ１〜Ｖ８を配管で環状回路に接続し、
可燃性冷媒を封入してなるヒートポンプサイクルで構成
する。The vending machine main body 101 includes a cooling and heating system including a compressor 108, an external heat exchanger 109, a motor-operated outside expansion valve 125 and a motor-operated inside expansion valve 1 serving as pressure reducing means.
26, 127, 128, internal heat exchangers 113, 114,
115, connect the solenoid valves V1 to V8 to the annular circuit by piping,
It is composed of a heat pump cycle in which a flammable refrigerant is sealed.

【０１００】すなわち、庫内熱交換器１１３，１１４，
１１５は、それぞれ収納庫１０２，１０３，１０４の底
部に配置され、収納庫１０２，１０３，１０４を冷却と
加温できるように配置してあり、そして、各収納庫１０
２，１０３，１０４のヒートポンプサイクルの環状回路
は同じなので収納庫１０２の例を以って説明する。That is, the internal heat exchangers 113, 114,
115 is arranged at the bottom of the storages 102, 103, 104, respectively, so that the storages 102, 103, 104 can be cooled and heated.
Since the annular circuits of the heat pump cycles 2, 103, and 104 are the same, an example of the storage 102 will be described.

【０１０１】圧縮機１０８より吐出された圧縮冷媒は、
電磁弁Ｖ７より庫外熱交換器１０９に流入して凝縮さ
れ、全開した庫外側電動膨張弁１２５を経て庫内側電動
膨張弁１２６で減圧されて庫内熱交換器１１３に流入し
て蒸発し、電磁弁Ｖ２を経て圧縮機１０８に吸入される
冷却作用の循環回路をなすように構成され、この時、電
磁弁Ｖ１、Ｖ８は閉じるように設定している。The compressed refrigerant discharged from the compressor 108 is
It flows into the outside heat exchanger 109 from the electromagnetic valve V7, is condensed, passes through the fully opened outside electric expansion valve 125, is decompressed by the inside electric expansion valve 126, flows into the inside heat exchanger 113, and evaporates. The compressor 108 is configured to form a circulation circuit of a cooling operation that is sucked into the compressor 108 via the solenoid valve V2. At this time, the solenoid valves V1 and V8 are set to be closed.

【０１０２】また、このヒートポンプサイクルは、庫外
熱交換器１０９の入口側と圧縮機１０８の吸入側とを電
磁弁Ｖ８で接続し、かつ圧縮機１０８の吐出側と庫内熱
交換器１１３の出口側とを電磁弁Ｖ１で接続して、圧縮
機１０８より吐出された圧縮冷媒が電磁弁Ｖ１より庫内
熱交換器１１３に流入して凝縮され、全開した庫内側電
動膨張弁１２６を経て庫外側電動膨張弁１２５で減圧さ
れて庫外熱交換器１０９に流入して蒸発し、電磁弁Ｖ８
を経て圧縮機１０８に吸入される加温作用の循環回路に
構成され、この時、電磁弁Ｖ２、Ｖ７は閉じるように設
定している。In this heat pump cycle, the inlet side of the external heat exchanger 109 and the suction side of the compressor 108 are connected by a solenoid valve V8, and the discharge side of the compressor 108 and the internal heat exchanger 113 are connected. The outlet side is connected by an electromagnetic valve V1, and the compressed refrigerant discharged from the compressor 108 flows into the internal heat exchanger 113 from the electromagnetic valve V1 and is condensed. The pressure is reduced by the outer electric expansion valve 125 and flows into the external heat exchanger 109 to evaporate.
And a circulation circuit of a heating action which is sucked into the compressor 108 through the solenoid valve, and at this time, the solenoid valves V2 and V7 are set to be closed.

【０１０３】以上説明した冷却加温システムのヒートポ
ンプサイクルを構成する圧縮機１０８、庫外熱交換器１
０９、庫外側電動膨張弁１２５および庫内側電動膨張弁
１２６，１２７，１２８、電磁弁Ｖ１〜Ｖ８、そして蒸
発器１１３，１１４，１１５を含む各配管との多数の溶
接部１１６と圧縮機１０８、庫外熱交換器１０９、庫外
側電動膨張弁１２５および庫内側電動膨張弁１２６，１
２７，１２８、電磁弁Ｖ１〜Ｖ８は、通気口１１７、１
１８を通じて外気へ常に通じている機械室１０５に配置
している。The compressor 108 and the external heat exchanger 1 constituting the heat pump cycle of the cooling and heating system described above
09, a large number of welds 116 with each pipe including the outside electric expansion valve 125 and the inside electric expansion valves 126, 127, 128, the solenoid valves V1 to V8, and the evaporators 113, 114, 115, and the compressor 108; Outside-compartment heat exchanger 109, outside-compartment electric expansion valve 125, and outside-compartment electric expansion valve 126,1
27, 128, the solenoid valves V1 to V8
It is arranged in a machine room 105 which always communicates with the outside air through 18.

【０１０４】１２９は収納庫に設けた庫内温度センサ
（図示せず）および商品温度センサ（図示せず）の検出
温度に基づき、圧縮機１０８、庫外側電動膨張弁１２
５、庫内側電動膨張弁１２６，１２７，１２８、電磁弁
Ｖ１〜Ｖ８、庫内ファン１１９，１２０，１２１、庫外
ファン１２２の動作を制御する冷却加温制御部である。Reference numeral 129 denotes a compressor 108 and a motor-operated outside expansion valve 12 based on the temperatures detected by an internal temperature sensor (not shown) and a product temperature sensor (not shown) provided in the storage.
5, a cooling and heating control unit that controls the operations of the inside electric expansion valves 126, 127, 128, the solenoid valves V1 to V8, the inside fans 119, 120, 121, and the outside fan 122.

【０１０５】上記実施形態において、自動販売機におけ
る収納庫１０２，１０３，１０４の冷却と加温につき説
明する。すなわち、収納庫１０２、１０３，１０４の全
部を冷却庫とするときは、冷却加温制御部１２９により
全部冷却と設定し、電磁弁Ｖ１，Ｖ３，Ｖ５，Ｖ８を閉
じ、電磁弁Ｖ２，Ｖ４，Ｖ６，Ｖ７を開く。In the above embodiment, the cooling and heating of the storages 102, 103, 104 in the vending machine will be described. That is, when all of the storages 102, 103, and 104 are used as the cooling storages, the cooling and heating control unit 129 sets all the coolings, closes the solenoid valves V1, V3, V5, and V8, and sets the solenoid valves V2, V4, and V4. Open V6 and V7.

【０１０６】そして、圧縮機１０８を運転すると、圧縮
冷媒は電磁弁Ｖ７を通り庫外熱交換器１０９にて凝縮
し、次に庫外側電動膨張弁１２５に流れて減圧され、各
庫内側電動膨張弁１２６，１２７，１２８に分流して更
に減圧される。続いて、各庫内熱交換器１１３，１１
４，１１５にて蒸発して各電磁弁Ｖ２，Ｖ４，Ｖ６を経
て合流し圧縮機１０８に戻る。Then, when the compressor 108 is operated, the compressed refrigerant is condensed in the external heat exchanger 109 through the solenoid valve V7, then flows to the electric expansion valve 125 outside the storage, and is decompressed. The pressure is further reduced by branching to the valves 126, 127 and 128. Subsequently, each heat exchanger 113, 11
At 4,115, they evaporate and merge via the solenoid valves V2, V4, V6 and return to the compressor 108.

【０１０７】また、収納庫１０２，１０３，１０４の全
部を加温庫とするときは、冷却加温制御部１２９により
全部加温と設定し、電磁弁Ｖ２，Ｖ４，Ｖ６，Ｖ７を閉
じ、電磁弁Ｖ１，Ｖ３，Ｖ５，Ｖ８を開く。そして、圧
縮機１０８を運転すると、圧縮冷媒は電磁弁Ｖ１、Ｖ
３、Ｖ５に分流して流れ、各庫内熱交換器１１３，１１
４，１１５にて凝縮し、次に各庫内側電動膨張弁１２
６，１２７，１２８で減圧されて合流し、庫外側電動膨
張弁１２５で更に減圧される。続いて、庫外熱交換器１
０９にて蒸発して電磁弁Ｖ８を経て圧縮機１０８に戻
る。When all of the storages 102, 103 and 104 are to be heated, all the storages are heated by the cooling and heating control unit 129, the solenoid valves V2, V4, V6 and V7 are closed, and the electromagnetic valves V2, V4, V6 and V7 are closed. Open valves V1, V3, V5, V8. When the compressor 108 is operated, the compressed refrigerant is supplied to the solenoid valves V1 and V1.
3, V5 diverted and flowed, each in-compartment heat exchanger 113, 11
4 and 115, and then the electric expansion valves 12
The pressure is reduced at 6, 127, 128 and merged, and further reduced at the electric expansion valve 125 on the outside of the warehouse. Next, the external heat exchanger 1
At 09, it evaporates and returns to the compressor 108 via the solenoid valve V8.

【０１０８】更に、収納庫１０２，１０３，１０４の一
部を冷却庫と加温庫にすることも可能で、それは冷却加
温制御部１２９により行い、庫外側電動膨張弁１２５お
よび庫内側電動膨張弁１２６，１２７，１２８の開度、
電磁弁Ｖ１〜Ｖ８の開閉を制御して各庫内熱交換器１１
３，１１４，１１５に対応する個々のヒートポンプサイ
クルに冷媒を循環させて行うものである。Further, a part of the storages 102, 103, and 104 can be used as a cooling storage and a heating storage, which are performed by the cooling and heating control unit 129, and the electric expansion valve 125 outside the storage and the electric expansion inside the storage. The degree of opening of the valves 126, 127, 128,
By controlling the opening and closing of the solenoid valves V1 to V8, each of the internal heat exchangers 11
This is performed by circulating the refrigerant through the individual heat pump cycles corresponding to 3, 114 and 115.

【０１０９】特に本発明では、庫外側減圧手段１２５と
庫内側減圧手段１２６，１２７，１２８とで二段階の減
圧制御を行うため、庫内側減圧手段１２６，１２７，１
２８と庫外側減圧手段１２５を接続する配管中の可燃性
冷媒が、圧縮機１０８の吐出圧力と吸入圧力との中間の
圧力となって気液二相状態となり、配管中に存在する冷
媒量が減少し、その分初期冷媒封入量を少なくすること
ができるため、ヒートポンプサイクルより誤って可燃性
冷媒が漏れたとしても、その濃度は低くなり、可燃性冷
媒に引火する危険性を低下させることができる。In particular, in the present invention, since the two-stage decompression control is performed by the outside decompression means 125 and the inside decompression means 126, 127, 128, the inside decompression means 126, 127, 1
The flammable refrigerant in the pipe connecting the pressure reducing unit 125 and the outside-of-compartment pressure-reducing means 125 has an intermediate pressure between the discharge pressure and the suction pressure of the compressor 108 to be in a gas-liquid two-phase state. Since the amount of refrigerant can be reduced and the initial refrigerant charge amount can be reduced accordingly, even if flammable refrigerant leaks accidentally from the heat pump cycle, its concentration will be lower and the risk of igniting the flammable refrigerant will be reduced. it can.

【０１１０】また、本発明では、電磁弁Ｖ１〜Ｖ８、庫
外側電動膨張弁１２５、庫内側電動膨張弁１２６，１２
７，１２８を、通気口１１７，１１８を介して常に外気
へ連通している機械室１０５に配置しているので、自動
販売機の収納庫１０２，１０３，１０４において、可燃
性冷媒が収納庫内に漏れる恐れの高い部分が無くなり、
収納庫１０２，１０３，１０４における可燃性冷媒への
引火の危険性を低下させ、安全性を高めることができ
る。In the present invention, the solenoid valves V1 to V8, the outside electric expansion valve 125, and the inside electric expansion valves 126 and 12 are used.
7 and 128 are arranged in the machine room 105 which is always in communication with the outside air through the vent holes 117 and 118, so that the flammable refrigerant is stored in the storages 102, 103 and 104 of the vending machine. There is no longer a high risk of leaking,
The danger of ignition of the combustible refrigerant in the storages 102, 103, 104 can be reduced, and safety can be improved.

【０１１１】そして、電磁弁Ｖ１〜Ｖ８、庫外側電動膨
張弁１２５、庫内側電動膨張弁１２６，１２７，１２８
の溶接部等から誤って可燃性冷媒が漏れたとしても、庫
外ファン１２３による流通、または自然対流により流通
する外気による拡散で、漏洩冷媒の濃度が減少し、電磁
弁Ｖ１〜Ｖ８、庫外側電動膨張弁１２５、庫内側電動膨
張弁１２６，１２７，１２８を着火源とする引火の危険
性を低下させることができる。Then, the solenoid valves V1 to V8, the outside electric expansion valve 125, the inside electric expansion valves 126, 127, 128
Even if the flammable refrigerant leaks accidentally from the welded part, the concentration of the leaked refrigerant decreases due to the circulation by the outside fan 123 or the diffusion by the outside air circulating by natural convection, and the solenoid valves V1 to V8, the outside of the warehouse The risk of ignition using the electric expansion valve 125 and the inside electric expansion valves 126, 127, 128 as ignition sources can be reduced.

【０１１２】（実施の形態８）図１６は、本発明の請求
項１２および請求項１３、請求項１４に記載する発明に
対応する一実施形態における冷却加温装置である自動販
売機の冷却加温システムを示した外観図、図１７は同自
動販売機の制御ブロック図である。(Embodiment 8) FIG. 16 shows a cooling and heating device of a vending machine which is a cooling and heating device according to an embodiment corresponding to the twelfth, thirteenth and fourteenth aspects of the present invention. FIG. 17 is an external view showing a temperature system, and FIG. 17 is a control block diagram of the vending machine.

【０１１３】この実施形態の発明は、自動販売機の複数
の収納庫に加温ヒータを設けた点が、上記実施の形態７
の発明と異なるだけなので、同一構成および作用効果を
奏する部分には同じ符号を付して詳細な説明を省き、異
なる部分を中心に説明する。The invention of the seventh embodiment is characterized in that a plurality of storages of a vending machine are provided with heating heaters.
Therefore, portions having the same configuration and operation and effect will be denoted by the same reference numerals, detailed description thereof will be omitted, and different portions will be mainly described.

【０１１４】ヒートポンプサイクルを構成する圧縮機１
０８、庫外熱交換器１０９、庫外側電動膨張弁１２５、
庫内側電動膨張弁１２６，１２７，１２８、庫内熱交換
器１１３，１１４，１１５は、各収納室１０２，１０
３，１０４を冷却または加温するよう電磁弁Ｖ１〜Ｖ８
の開閉及び庫外側電動膨張弁１２５、庫内側電動膨張弁
１２６，１２７，１２８の開度を制御して、冷媒の循環
を可逆にできるように構成し、これを冷却加温制御部１
３０で制御する。Compressor 1 Constituting Heat Pump Cycle
08, outside heat exchanger 109, outside electric expansion valve 125,
The electric compartment expansion valves 126, 127, 128 and the internal heat exchangers 113, 114, 115 are provided in the respective storage chambers 102, 10.
Solenoid valves V1 to V8 to cool or heat 3,104
The opening / closing of the air conditioner and the opening degrees of the electric motor expansion valve 125 and the electric motor expansion valves 126, 127, 128 are controlled so that the circulation of the refrigerant can be reversible.
Control is performed at 30.

【０１１５】１３１，１３２，１３３は、各収納庫１０
２，１０３，１０４に設けた加温ヒータで、ヒートポン
プ方式による各庫内熱交換器１１３，１１４，１１５の
凝縮作用による加温の分だけ発熱容量を小さくして、表
面温度が可燃性冷媒の発火点より低くなるように設定し
ている。[0115] 131, 132, 133 are each storage 10
Heating heaters provided at 2, 103, and 104 reduce the heat generation capacity by the amount of heating due to the condensing action of the in-compartment heat exchangers 113, 114, and 115 by the heat pump method, so that the surface temperature of the combustible refrigerant is reduced. It is set to be lower than the ignition point.

【０１１６】上記実施形態において、自動販売機におけ
る収納庫１０２，１０３，１０４の冷却と加温につき説
明する。すなわち、収納庫１０２，１０３，１０４の全
部を加温庫とするときは、冷却加温制御部１３０により
全部加温と設定し、電動開閉弁Ｖ１，Ｖ３，Ｖ５，Ｖ８
を開き、電磁弁Ｖ２，Ｖ４，Ｖ６，Ｖ７を閉じる。そし
て、加温ヒータ１３１，１３２，１３３に通電し、圧縮
機１０８を運転すると、圧縮冷媒は各電磁弁Ｖ１，Ｖ
３，Ｖ５を経て庫内熱交換器１１３，１１４，１１５に
流れて凝縮し、収納庫１０２，１０３，１０４を前記加
温ヒータ１３１，１３２，１３３とともに加温し、更に
庫内側電動膨張弁１２６，１２７，１２８を経て合流し
庫外側電動膨張弁１２５にて減圧され庫外熱交換器１０
９にて蒸発して圧縮機１０８に戻る循環となる。In the above embodiment, the cooling and heating of the storages 102, 103, 104 in the vending machine will be described. That is, when all of the storages 102, 103, and 104 are to be heated, the cooling and heating control unit 130 sets all of them to be heated, and the electric on-off valves V1, V3, V5, and V8.
And solenoid valves V2, V4, V6, V7 are closed. Then, when the heaters 131, 132, 133 are energized and the compressor 108 is operated, the compressed refrigerant is supplied to each of the solenoid valves V1, V1
After flowing through the internal heat exchangers 113, 114, and 115 through the V3 and V5 to condense, the storages 102, 103, and 104 are heated together with the heating heaters 131, 132, and 133. , 127, and 128, the pressure is reduced by the electric expansion valve 125 outside the storage, and the heat exchanger 10 outside the storage
At 9, a circulation returns to the compressor 108 after evaporation.

【０１１７】また、収納庫１０２，１０３，１０４の全
部を冷却庫とするときは、冷却加温制御部１３０により
全部冷却と設定し、電磁弁Ｖ１，Ｖ３，Ｖ５，Ｖ８を閉
じ、電磁弁Ｖ２，Ｖ４，Ｖ６，Ｖ７を開く。そして、圧
縮機１０８を運転すると、圧縮冷媒は電磁弁Ｖ７を通り
庫外熱交換器１０９にて凝縮し、次に庫外側電動膨張弁
１２５に流れて減圧され各庫内側電動膨張弁１２６，１
２７，１２８に分流して更に減圧される。続いて、各庫
内熱交換器１１３，１１４，１１５にて蒸発して各電磁
弁Ｖ２，Ｖ４，Ｖ６を経て合流し圧縮機１０８に戻る循
環となる。When all of the storages 102, 103, and 104 are used as cooling storages, the cooling and heating control unit 130 sets all the coolings, closes the solenoid valves V1, V3, V5, V8, and sets the solenoid valves V2 , V4, V6, and V7. Then, when the compressor 108 is operated, the compressed refrigerant is condensed in the external heat exchanger 109 through the solenoid valve V7, and then flows to the external electric expansion valve 125 to be decompressed and reduced in the internal electric expansion valves 126 and 1.
The pressure is further reduced by dividing into 27 and 128. Subsequently, the refrigerant evaporates in each of the in-compartment heat exchangers 113, 114, and 115, merges through the electromagnetic valves V2, V4, and V6, and returns to the compressor.

【０１１８】また、収納庫１０２，１０３を冷却庫と
し、収納庫１０４を加温庫とするときは、冷却加温制御
部１３０により前記冷却と加温を設定し、電磁弁Ｖ１，
Ｖ３，Ｖ６，Ｖ８を閉じ、電磁弁Ｖ２，Ｖ４，Ｖ５，Ｖ
７を開く。そして、加温ヒータ１３３のみに通電し、圧
縮機１０８を運転すると、圧縮冷媒は電磁弁Ｖ７を通り
庫外熱交換器１０９にて凝縮し、次に庫外側電動膨張弁
１２５に流れて減圧され、次に庫内側電動膨張弁１２
６，１２７に分流して入り減圧され、次に庫内熱交換器
１１３，１１４にて蒸発する上記した冷却時のように流
れる。When the storages 102 and 103 are used as cooling storages and the storage 104 is used as a heating storage, the cooling and heating are set by the cooling and heating control unit 130, and the solenoid valves V1,
V3, V6, V8 are closed and solenoid valves V2, V4, V5, V
Open 7. Then, when only the heating heater 133 is energized and the compressor 108 is operated, the compressed refrigerant is condensed in the external heat exchanger 109 through the solenoid valve V7, and then flows to the external electric expansion valve 125 to be decompressed. Next, the electric expansion valve 12 inside the warehouse
6, 127, and then decompressed, and then flows as in the cooling described above, which evaporates in the internal heat exchangers 113, 114.

【０１１９】一方、庫内熱交換器１１５には電磁弁Ｖ５
を経て圧縮冷媒が流れ凝縮して加温ヒータ１３３ととも
に収納庫１０４を加温し、凝縮後の冷媒は庫内側電動膨
張弁１２６，１２７に分流して流れ庫内熱交換器１１
３，１１４に流入する冷媒に合流する。このようにして
冷却と加温が行われ比較的に冷却負荷の大きい場合に対
応できる。On the other hand, the internal heat exchanger 115 has a solenoid valve V5
, The compressed refrigerant flows and condenses, and the storage 104 is heated together with the heating heater 133, and the condensed refrigerant is diverted to the electric expansion valves 126 and 127 inside the storage, and flows therethrough.
3, 114 to join the refrigerant. In this manner, cooling and heating are performed, so that it is possible to cope with a case where the cooling load is relatively large.

【０１２０】また、収納庫１０２を冷却庫とし、収納庫
１０３，１０４を加温庫とするときは、冷却加温制御部
１３０により前記冷却と加温を設定し、電磁弁Ｖ１，Ｖ
４，Ｖ６，Ｖ７を閉じ、電磁弁Ｖ２，Ｖ３，Ｖ５，Ｖ８
を開く。そして、加温ヒータ１３２，１３３のみに通電
し、圧縮機１０８を運転すると、圧縮冷媒は庫内熱交換
器１１４，１１５に上記した加温時のように流れて加温
ヒータ１３２，１３３とともに収納庫１０３，１０４を
加温する。When the storage 102 is used as a cooling storage and the storages 103 and 104 are used as heating storages, the cooling and heating are set by the cooling and heating control unit 130, and the solenoid valves V1 and V1 are set.
4, V6, V7 are closed, and the solenoid valves V2, V3, V5, V8
open. Then, when only the heating heaters 132 and 133 are energized and the compressor 108 is operated, the compressed refrigerant flows into the internal heat exchangers 114 and 115 as in the case of the above-described heating and is stored together with the heating heaters 132 and 133. The refrigerators 103 and 104 are heated.

【０１２１】一方、庫内熱交換器１１３には電磁弁Ｖ７
を通り庫外熱交換器１０９にて凝縮し、次に庫外側電動
膨張弁１２５に流れて減圧された冷媒と、庫内熱交換器
１１４，１１５で凝縮し庫内側電動膨張弁１２７，１２
８にて減圧された冷媒が合流して庫内側電動膨張弁１２
６で減圧されて流入し蒸発し、電磁弁Ｖ２を経て圧縮機
１０８に戻り冷却が行われる。このようにして冷却と加
温が行われ、比較的に加温負荷の大きい場合に対応でき
る。On the other hand, the internal heat exchanger 113 has a solenoid valve V7
, And condensed in the external heat exchanger 109, and then flowed to the external electric expansion valve 125 and decompressed, and condensed in the internal heat exchangers 114 and 115 and electrically connected to the internal electric expansion valves 127 and 12
The refrigerant decompressed at 8 joins the electric expansion valve 12 inside the warehouse.
At 6, the pressure is reduced and flows in, evaporates, returns to the compressor 108 via the solenoid valve V2, and is cooled. In this way, cooling and heating are performed, and it is possible to cope with a case where the heating load is relatively large.

【０１２２】特に本発明では、庫内熱交換器１１３，１
１４，１１５と加温ヒータ１３１，１３２，１３３が冷
却加温できるように配置されている自動販売機の収納庫
１０２，１０３，１０４において、加温ヒータ１３１，
１３２，１３３およびヒートポンプ方式による各庫内熱
交換器１１３，１１４，１１５の凝縮作用により収納庫
１０２，１０３，１０４を加温するので、外気温度が低
い場合でも十分な加温が行えるとともに、加温に要する
熱量の大部分はヒートポンプ方式による庫内熱交換器１
１４，１１５，１１６の凝縮作用による加温で賄われる
ため、加温ヒータ１３１，１３２，１３３の容量を小さ
くすることができるので、加温ヒータ１３１，１３２，
１３３のみで加温する場合と比較して、省エネルギー化
が図れるとともに、加温ヒータ１３１，１３２，１３３
の表面温度を低下させることができ、庫内熱交換器１１
３，１１４，１１５より誤って可燃性冷媒が漏れ加温ヒ
ータ１３１，１３２，１３３に触れたとしても、漏れた
可燃性冷媒に引火する危険性を低下させることができ
る。In particular, in the present invention, the internal heat exchangers 113, 1
14, 115 and the heaters 131, 132, 133 in the vending machine storages 102, 103, 104 where the heaters 131, 132, 133 can be cooled and heated.
Since the storages 102, 103, and 104 are heated by the condensing action of the heat exchangers 132, 133 and the heat exchangers 113, 114, and 115 in the storages, sufficient heating can be performed even when the outside air temperature is low. Most of the amount of heat required for heating is the heat exchanger type internal heat exchanger 1
Since the heating is achieved by the condensing action of the heating heaters 131, 132, and 133, the capacity of the heating heaters 131, 132, and 133 can be reduced.
Energy saving can be achieved as compared with the case where heating is performed only by the heater 133, and the heating heaters 131, 132, and 133 can be used.
Of the internal heat exchanger 11 can be lowered.
Even if the flammable refrigerant touches the leakage heating heaters 131, 132, 133 by mistake, the risk of igniting the leaked flammable refrigerant can be reduced.

【０１２３】[0123]

【発明の効果】以上説明したように請求項１に記載の発
明は、圧縮機、凝縮器、減圧手段、蒸発器を配管で環状
回路に接続し、可燃性冷媒を含む混合冷媒あるいは単一
成分からなる可燃性冷媒を前記環状回路に封入してなる
冷凍サイクルと加温ヒータで構成するとともに前記蒸発
器と加温ヒータを所定置が冷却と加温できるように配置
し、かつ前記冷凍サイクルおよび加温ヒータを制御して
冷却と加温を行う冷却加温制御部を備え、前記加温ヒー
タは表面温度を、前記可燃性冷媒の発火点より低く設定
してなるもので、蒸発器と加温ヒータが冷却と加温でき
るように配置されている所定置が、例えば自動販売機の
収納庫であって、加温ヒータにより収納庫内の商品を暖
めている際に蒸発器より誤って可燃性冷媒が漏れ加温ヒ
ータに触れたとしても、漏れた可燃性冷媒に引火するの
を防止できるとともに地球温暖化の防止を図ることがで
きる。As described above, according to the first aspect of the present invention, a compressor, a condenser, a decompression means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a combustible refrigerant or a single component. A refrigeration cycle and a heating heater comprising a flammable refrigerant filled in the annular circuit and a heating heater, and the evaporator and the heating heater are arranged so that a predetermined position can be cooled and heated, and the refrigeration cycle and A cooling / heating controller for controlling a heating heater to perform cooling and heating, wherein the heating heater has a surface temperature set lower than the ignition point of the flammable refrigerant; The predetermined location where the heater can be cooled and heated is, for example, a storage of a vending machine. When the product in the storage is heated by the heating heater, it is erroneously combustible from the evaporator. Flammable refrigerant touches the leaking heater Also, it is possible to prevent global warming can be prevented from igniting the leaking flammable refrigerant.

【０１２４】また、蒸発器と加温ヒータを所定置が冷却
と加温できるように配置し、かつ圧縮機、凝縮器、減圧
手段、蒸発器を配管で環状回路に接続し、可燃性冷媒を
含む混合冷媒あるいは単一成分からなる可燃性冷媒を前
記環状回路に封入してなる冷凍サイクルを構成して冷却
と、この冷凍サイクルをヒートポンプ方式にして加温ヒ
ータとともに加温する請求項２に記載の発明も、同じく
前記蒸発器を複数備えた請求項３に記載の発明も、同じ
く前記複数の蒸発器のうち、冷却専用の蒸発器を備えた
請求項４に記載の発明も、前記ヒートポンプと前記加温
ヒータにより加温を行い、かつ前記加温ヒータは前記可
燃性冷媒の発火点より低い発熱容量に設定してなるもの
で、蒸発器と加温ヒータが冷却加温できるように配置さ
れている所定置が、例えば自動販売機の収納庫であっ
て、冷凍サイクルのヒートポンプ方式と加温ヒータによ
り収納庫内の商品を暖めている際に、蒸発器より誤って
可燃性冷媒が漏れ加温ヒータに触れたとしても、漏れた
可燃性冷媒への引火を防止できるとともに地球温暖化の
防止を図ることができる。Further, the evaporator and the heating heater are arranged so that a predetermined position can cool and heat, and the compressor, the condenser, the decompression means, and the evaporator are connected to the annular circuit by piping, and the combustible refrigerant is supplied. 3. A refrigeration cycle in which a mixed refrigerant containing a single component or a flammable refrigerant containing a single component is enclosed in the annular circuit for cooling, and the refrigeration cycle is heat pumped and heated together with a heating heater. The invention according to claim 3 also includes a plurality of the evaporators, and the invention according to claim 4 also includes an evaporator dedicated to cooling among the plurality of evaporators. Heating is performed by the heating heater, and the heating heater is set to have a heating capacity lower than the ignition point of the flammable refrigerant, and is arranged so that the evaporator and the heating heater can be cooled and heated. Is in place For example, in the storage of a vending machine, when the product in the storage is heated by the heat pump system of the refrigeration cycle and the heating heater, and the flammable refrigerant leaks from the evaporator accidentally and touches the heating heater, In addition, it is possible to prevent ignition of the leaked flammable refrigerant and to prevent global warming.

【０１２５】請求項５に記載の発明は、圧縮機、凝縮
器、減圧手段、複数の蒸発器を配管で環状回路に接続
し、可燃性冷媒を含む混合冷媒あるいは単一成分からな
る可燃性冷媒を前記環状回路に封入してなる冷凍サイク
ルとヒートポンプに構成するとともに前記蒸発器を所定
置が冷却と加温できるように配置し、かつ前記冷凍サイ
クルを制御して冷却と加温を行う冷却加温制御部と、前
記蒸発器のうち、冷却専用の蒸発器を除く各蒸発器がそ
れぞれ冷却と加温が自由に選択できるようにする冷却加
温設定部とを備え、前記ヒートポンプのみで加温を行う
ようにしたもので、蒸発器が冷却加温できるように配置
されている所定置が、例えば自動販売機の収納庫であっ
て、ヒートポンプ方式による蒸発器の凝縮作用のみで加
温し、加温ヒータ等の可燃性冷媒に直接、引火するもの
が無いので、蒸発器より誤って可燃性冷媒が漏れたとし
ても、可燃性冷媒への引火を防止できるとともに地球温
暖化の防止を図ることができる。According to a fifth aspect of the present invention, a compressor, a condenser, a decompression means, and a plurality of evaporators are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is used. And a heat pump and a refrigeration cycle enclosed in the annular circuit, the evaporator is arranged so that a predetermined position can be cooled and heated, and a cooling and heating unit for controlling the refrigeration cycle to perform cooling and heating. A temperature control unit, and a cooling and heating setting unit that allows each of the evaporators, except for the evaporator dedicated to cooling, to freely select cooling and heating, and heats only with the heat pump. The predetermined position that is arranged so that the evaporator can be cooled and heated is, for example, a storage of a vending machine, and is heated only by the condensation action of the evaporator by a heat pump method, Heating heater Directly combustible refrigerant, so there is nothing to ignite, even leaked flammable refrigerant by mistake from the evaporator, it is possible to prevent global warming it is possible to prevent ignition of the flammable refrigerant.

【０１２６】請求項６に記載の発明は、圧縮機、凝縮
器、減圧手段、蒸発器を配管で環状回路に接続し、可燃
性冷媒を含む混合冷媒あるいは単一成分からなる可燃性
冷媒を前記環状回路に封入してなる冷凍サイクルと加温
ヒータで構成するとともに前記蒸発器と加温ヒータが所
定置を冷却と加温できるように配置し、かつ前記冷凍サ
イクルおよび加温ヒータを制御して冷却と加温を行う冷
却加温制御部を備え、加温ヒータの使用時は、冷却用の
蒸発器内に可燃性冷媒が滞留しないようにしてなるもの
で、冷却用の蒸発器より誤って可燃性冷媒が収納庫内に
漏れる恐れが無くなり、仮に漏れたとしても殆ど問題に
ならない量であるから、漏れた可燃性冷媒への引火を防
止できるとともに地球温暖化の防止を図ることができ
る。According to a sixth aspect of the present invention, a compressor, a condenser, a decompression means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is discharged. The evaporator and the heating heater are arranged so as to be able to cool and heat a predetermined position, and the refrigeration cycle and the heating heater are controlled. Equipped with a cooling and heating control unit that performs cooling and heating.When the heating heater is used, the flammable refrigerant is prevented from staying in the cooling evaporator. There is no danger of the flammable refrigerant leaking into the storage, and even if the flammable refrigerant leaks, there is almost no problem. Therefore, it is possible to prevent ignition of the leaked flammable refrigerant and to prevent global warming.

【０１２７】請求項７に記載の発明は、請求項１〜請求
項６のいずれか一項の記載において、蒸発器は冷凍サイ
クルを構成する環状回路に接続した溶接部を常に外気へ
連通している位置に配置してなるもので、蒸発器と加温
ヒータが冷却加温できるように配置されている所定置
が、例えば自動販売機の収納庫であって、可燃性冷媒が
収納庫内に漏れる恐れの高い溶接部分が無くなり、収納
庫における可燃性冷媒への引火が無くなり安全性を高め
ることができるとともに地球温暖化の防止を図ることが
できる。According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the evaporator always communicates a welded portion connected to an annular circuit constituting a refrigeration cycle to the outside air. The predetermined position where the evaporator and the heating heater are arranged so that they can be cooled and heated is, for example, a storage of a vending machine, and a flammable refrigerant is stored in the storage. A welded portion that is likely to leak is eliminated, and flammable refrigerant in the storage is not ignited, so that safety can be improved and global warming can be prevented.

【０１２８】また、前記溶接部より誤って可燃性冷媒が
漏れたとしても、流通する外気による拡散等で熱源等に
よる引火が起こらないように安全にできる。Further, even if the flammable refrigerant leaks from the welding portion by mistake, it can be safely prevented from igniting due to a heat source or the like due to diffusion or the like of the circulating outside air.

【０１２９】請求項８に記載の発明は、圧縮機、凝縮
器、減圧手段、補助熱交換器を配管で環状回路に接続
し、可燃性冷媒を含む混合冷媒あるいは単一成分からな
る可燃性冷媒を前記環状回路に封入してなる冷凍サイク
ルに構成し、前記補助熱交換器と間接熱交換した２次冷
媒を循環させ、所定置を冷却と加温またはそのいずれか
ができるように配置した熱交換器により前記冷凍サイク
ルを２次冷媒方式にしてなるもので、熱交換器が冷却と
加温またはそのいずれかができるように配置されている
所定置が、例えば自動販売機の収納庫であって、熱交換
器より可燃性冷媒が収納庫内に漏れる恐れが無くなり、
安全にできるとともに地球温暖化の防止を図ることがで
きる。また、可燃性冷媒の量は、２次冷媒回路を循環す
る量に相当する分が少なくでき、安全性をより高めるこ
とができる。According to the present invention, a compressor, a condenser, a decompression means, and an auxiliary heat exchanger are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is connected. In a refrigeration cycle sealed in the annular circuit, circulates a secondary refrigerant indirectly heat-exchanged with the auxiliary heat exchanger, and heats or cools a predetermined position so that it can be cooled and / or heated. The refrigeration cycle is made into a secondary refrigerant system by an exchanger, and a predetermined position where the heat exchanger is arranged to be able to cool and / or heat is, for example, a storage of a vending machine. Therefore, there is no possibility that the flammable refrigerant leaks into the storage from the heat exchanger,
It can be safe and prevent global warming. Further, the amount of the flammable refrigerant can be reduced by an amount corresponding to the amount circulating in the secondary refrigerant circuit, and safety can be further improved.

【０１３０】請求項９に記載の発明は、請求項１〜請求
項８のいずれか一項に記載の冷却加温装置を備えた自動
販売機なので、請求項１〜請求項８に記載の発明の効果
が得られ、可燃性冷媒を使用して地球温暖化の防止を図
りながら安全な自動販売機を提供できる。The invention according to claim 9 is a vending machine provided with the cooling and heating device according to any one of claims 1 to 8, so the invention according to claims 1 to 8 Thus, a safe vending machine can be provided while using a flammable refrigerant to prevent global warming.

【０１３１】請求項１０に記載の発明は、通気口のある
機械室と複数の収納庫を備えた自動販売機において、前
記機械室に設けた圧縮機と、前記機械室に設けた庫外熱
交換器と、前記複数の収納庫に各々設けた庫内熱交換器
と、前記庫内熱交換器の出入口の一方と前記圧縮機の吸
入側及び吐出側とを各々電磁弁を介して並列に接続する
配管と、前記庫内熱交換器の出入口の他方と前記庫外熱
交換器の出入口の一方とを減圧手段を介して接続する配
管と、前記庫外熱交換器の出入口の他方と前記圧縮機の
吸入側及び吐出側とを各々電磁弁を介して並列に接続す
る配管とからヒートポンプサイクルを構成し、前記電磁
弁の開閉及び前記減圧手段の開度を制御する冷却加温制
御部を備え、前記ヒートポンプサイクルに可燃性冷媒を
封入してなるもので、自動販売機の複数の収納庫を、ヒ
ートポンプ方式による庫内熱交換器の凝縮作用のみで加
温するので、加温ヒータで加温する場合と比較して省エ
ネルギー化が図れるとともに、加温ヒータが不要となり
低コスト化を実現でき、庫内熱交換器より誤って可燃性
冷媒が漏れたとしても、可燃性冷媒に引火する危険性を
低下させることができる。According to a tenth aspect of the present invention, in a vending machine provided with a machine room having a vent and a plurality of storages, a compressor provided in the machine room and an external heat source provided in the machine room are provided. Exchanger, an internal heat exchanger provided in each of the plurality of storages, and one of an inlet and an outlet of the internal heat exchanger and a suction side and a discharge side of the compressor in parallel via respective solenoid valves. A connecting pipe, a pipe connecting the other of the entrance and exit of the internal heat exchanger and one of the entrance and exit of the external heat exchanger via a decompression means, and the other of the entrance and exit of the external heat exchanger and the A pipe for connecting the suction side and the discharge side of the compressor in parallel via an electromagnetic valve, respectively, constitutes a heat pump cycle, and includes a cooling and heating control unit for controlling the opening and closing of the electromagnetic valve and the opening of the pressure reducing means. Provided with a flammable refrigerant sealed in the heat pump cycle In addition, since a plurality of storages of a vending machine are heated only by the condensing action of a heat exchanger in the storage by a heat pump method, energy saving can be achieved as compared with a case where heating is performed by a heating heater, and a heating heater is also provided. And the cost can be reduced, and even if the flammable refrigerant leaks from the internal heat exchanger by mistake, the danger of igniting the flammable refrigerant can be reduced.

【０１３２】請求項１１に記載の発明は、請求項１０に
記載の発明において、減圧手段は、複数の収納庫に各々
設けた庫内熱交換器の出入口の一方に設けた庫内側減圧
手段と、庫外熱交換器の出入口の一方に設けた庫外側減
圧手段を備え、前記庫内側減圧手段と前記庫外側減圧手
段を配管で接続したもので、庫外側減圧手段と庫内側減
圧手段とで二段階の減圧制御を行うため、庫内側減圧手
段と庫外側減圧手段を接続する配管中の可燃性冷媒が、
圧縮機の吐出圧力と吸入圧力との中間の圧力となって気
液二相状態となり、配管中に存在する冷媒量が減少し、
その分初期冷媒封入量を少なくすることができるため、
ヒートポンプサイクルより誤って可燃性冷媒が漏れたと
しても、その濃度は低くなり、可燃性冷媒に引火する危
険性を低下させることができる。According to an eleventh aspect of the present invention, in accordance with the tenth aspect of the present invention, the decompression means comprises a decompression inside means provided at one of the entrances and exits of the internal heat exchanger provided in each of the plurality of storages. An outside-compartment pressure reducing means provided at one of the entrance and exit of the outside-compartment heat exchanger, wherein the inside-compartment decompression means and the outside-compartment decompression means are connected by piping, and In order to perform the two-stage decompression control, the flammable refrigerant in the pipe connecting the inside decompression unit and the outside decompression unit,
It becomes an intermediate pressure between the discharge pressure and the suction pressure of the compressor and becomes a gas-liquid two-phase state, and the amount of refrigerant present in the piping decreases,
Because the amount of initial refrigerant charge can be reduced accordingly,
Even if the flammable refrigerant leaks from the heat pump cycle by mistake, the concentration of the flammable refrigerant is reduced, and the risk of igniting the flammable refrigerant can be reduced.

【０１３３】請求項１２に記載の発明は、請求項１０ま
たは請求項１１に記載の発明において、電磁弁及び減圧
手段を通気口のある機械室に配置したもので、電磁弁及
び減圧手段の溶接部等から誤って可燃性冷媒が漏れたと
しても、機械室の通気口より流通する外気による拡散
で、可燃性冷媒に引火する危険性を低下させることがで
きる。According to a twelfth aspect of the present invention, in accordance with the tenth or eleventh aspect of the present invention, the solenoid valve and the pressure reducing means are disposed in a machine room having a vent, and the electromagnetic valve and the pressure reducing means are welded. Even if the flammable refrigerant leaks from a part or the like by mistake, the danger of igniting the flammable refrigerant can be reduced by diffusion due to the outside air flowing from the vent of the machine room.

【０１３４】請求項１３に記載の発明は、請求項１０か
ら請求項１２のいずれか一項に記載の発明において、庫
内熱交換器を溶接部のない１本の長尺の管を蛇行させて
形成したもので、庫内熱交換器は可燃性冷媒の漏れる可
能性の高い溶接部がなく、庫内熱交換器より可燃性冷媒
が収納庫内に漏れる恐れが極めて少なくなり、可燃性冷
媒に引火する危険性を低下させることができる。According to a thirteenth aspect of the present invention, in the invention according to any one of the tenth to twelfth aspects, the in-compartment heat exchanger is formed by meandering one long tube having no welded portion. The heat exchanger in the refrigerator does not have a welded part where the flammable refrigerant is likely to leak, and the risk of the flammable refrigerant leaking into the storage than the heat exchanger in the refrigerator is extremely reduced. The risk of ignition can be reduced.

【０１３５】請求項１４に記載の発明は、請求項１０か
ら請求項１３のいずれか一項に記載の発明において、自
動販売機の複数の収納庫に加温ヒータを設けたもので、
加温ヒータおよびヒートポンプ方式による各庫内熱交換
器の凝縮作用により収納庫を加温するので、外気温度が
低い場合でも十分な加温が行えるとともに、加温に要す
る熱量の大部分はヒートポンプ方式による庫内熱交換器
の凝縮作用による加温で賄われるため、加温ヒータの容
量を小さくすることができるので、加温ヒータのみで加
温する場合と比較して省エネルギー化が図れるととも
に、加温ヒータの表面温度を低下させることができ、庫
内熱交換器より誤って可燃性冷媒が漏れ加温ヒータに触
れたとしても、漏れた可燃性冷媒に引火する危険性を低
下させることができる。According to a fourteenth aspect of the present invention, there is provided the vending machine according to any one of the tenth to thirteenth aspects, wherein a plurality of storages of the vending machine are provided with heating heaters.
The storage cabinet is heated by the condensing action of the internal heat exchangers by the heating heater and heat pump system, so that sufficient heating can be performed even when the outside air temperature is low, and most of the heat required for heating is heat pump system As a result, the capacity of the heating heater can be reduced, so that energy can be saved as compared with the case where only the heating heater is used. The surface temperature of the heater can be lowered, and even if the flammable refrigerant leaks from the internal heat exchanger and touches the heating heater, the risk of igniting the leaked flammable refrigerant can be reduced. .

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明冷却加温装置の実施の形態１における自
動販売機の冷却加温システムを示した外観図FIG. 1 is an external view showing a cooling and heating system of a vending machine according to a first embodiment of a cooling and heating device of the present invention.

【図２】同冷却加温装置である自動販売機の制御ブロッ
ク図FIG. 2 is a control block diagram of a vending machine as the cooling and heating device.

【図３】本発明冷却加温装置の実施の形態２における自
動販売機の冷却加温システムを示した外観図FIG. 3 is an external view showing a cooling and heating system of a vending machine according to a second embodiment of the cooling and heating device of the present invention.

【図４】同冷却加温装置である自動販売機の冷却加温シ
ステム全体が加温状態時の図FIG. 4 is a diagram showing the entire cooling and heating system of the vending machine as the cooling and heating device in a heated state;

【図５】同冷却加温装置である自動販売機の冷却加温シ
ステム全体が冷却状態時の図FIG. 5 is a diagram showing a state in which the entire cooling and heating system of the vending machine as the cooling and heating device is in a cooling state;

【図６】同冷却加温装置である自動販売機の冷却加温シ
ステムが冷却と加温の混在状態で冷却負荷の方が大きい
時の図FIG. 6 is a diagram when a cooling and heating system of a vending machine, which is the same cooling and heating device, has a larger cooling load in a mixed state of cooling and heating.

【図７】同冷却加温装置である自動販売機の冷却加温シ
ステムが冷却と加温の混在状態で加温負荷の方が大きい
時の図FIG. 7 is a diagram when a cooling and heating system of a vending machine, which is the same cooling and heating device, has a larger heating load in a mixed state of cooling and heating.

【図８】本発明冷却加温装置の実施の形態３における自
動販売機の冷却加温システムを示した外観図FIG. 8 is an external view showing a cooling and heating system of a vending machine according to a third embodiment of the cooling and heating device of the present invention.

【図９】本発明冷却加温装置の実施の形態４における自
動販売機の冷却加温システムを示した外観図FIG. 9 is an external view showing a cooling and heating system of a vending machine according to a fourth embodiment of the cooling and heating device of the present invention.

【図１０】本発明冷却加温装置の実施の形態５における
自動販売機の冷却加温システムを示した外観図FIG. 10 is an external view showing a cooling and heating system of a vending machine according to a fifth embodiment of the cooling and heating device of the present invention.

【図１１】本発明冷却加温装置の実施の形態１における
他の例を示す自動販売機の冷却加温システムの外観図FIG. 11 is an external view of a cooling and heating system of a vending machine showing another example of the cooling and heating device according to the first embodiment of the present invention.

【図１２】本発明冷却加温装置の実施の形態１０におけ
る自動販売機の冷却加温システムを示した外観図FIG. 12 is an external view showing a cooling and heating system of a vending machine according to a tenth embodiment of the cooling and heating device of the present invention.

【図１３】同冷却加温装置である自動販売機の制御ブロ
ック図FIG. 13 is a control block diagram of a vending machine as the cooling and heating device.

【図１４】本発明冷却加温装置の実施の形態１１におけ
る自動販売機の冷却加温システムを示した外観図FIG. 14 is an external view showing a cooling and heating system of a vending machine according to Embodiment 11 of the cooling and heating device of the present invention.

【図１５】同冷却加温装置である自動販売機の制御ブロ
ック図FIG. 15 is a control block diagram of a vending machine as the cooling and heating device.

【図１６】本発明冷却加温装置の実施の形態１２におけ
る自動販売機の冷却加温システムを示した外観図FIG. 16 is an external view showing a cooling and heating system of a vending machine according to a twelfth embodiment of the cooling and heating device of the present invention.

【図１７】同冷却加温装置である自動販売機の制御ブロ
ック図FIG. 17 is a control block diagram of a vending machine as the cooling and heating device.

【符号の説明】[Explanation of symbols]

２，３，４ 収納庫（所定置） ５ 機械室（外気へ連通している位置） ８ 圧縮機 ９ 蒸発器 １４，１５，１６ 蒸発器 １４ａ，１５ａ，１６ａ 熱交換器 １７，１８，１９ 加温ヒータ １７ａ，１８ａ，１９ａ 加温ヒータ １７ｂ，１８ｂ，１９ｂ 加温ヒータ ２０ 溶接部 ２１，２２ 通気口 ２８ 冷却加温設定部 ２９ 冷却加温制御部 ３６ 補助熱交換器 ３７ 循環ポンプ １０１ 自動販売機の本体 １０２，１０３，１０４ 収納庫 １０５ 機械室 １０８ 圧縮機 １０９ 庫外熱交換器 １１０，１１１，１１２ 電動膨張弁 １１３，１１４，１１５ 庫内熱交換器 １１６ 溶接部 １１７，１１８ 通気口 １２３ 冷却加温制御部 １２５ 庫外側電動膨張弁 １２６，１２７，１２８ 庫内側電動膨張弁 １２９ 冷却加温制御部 １３０ 冷却加温制御部 １３１，１３２，１３３ 加温ヒータ Ｖ１，Ｖ２，Ｖ３，Ｖ４，Ｖ５，Ｖ６，Ｖ７，Ｖ８ 電
磁弁2, 3, 4 Storage (predetermined position) 5 Machine room (position communicating with outside air) 8 Compressor 9 Evaporator 14, 15, 16 Evaporator 14a, 15a, 16a Heat exchanger 17, 18, 19 Heating heaters 17a, 18a, 19a Heating heaters 17b, 18b, 19b Heating heaters 20 Welding parts 21, 22 Vents 28 Cooling / heating setting unit 29 Cooling / heating control unit 36 Auxiliary heat exchanger 37 Circulation pump 101 Vending machine 102, 103, 104 Storage 105 Machine room 108 Compressor 109 External heat exchanger 110, 111, 112 Electric expansion valve 113, 114, 115 Internal heat exchanger 116 Welds 117, 118 Vent 123 Cooling Temperature control unit 125 Outside electric expansion valve 126, 127, 128 Inside electric expansion valve 129 Cooling / heating control unit 130 Cooling / heating control unit 131, 132,133 Heating heater V1, V2, V3, V4, V5, V6, V7, V8 Solenoid valve

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２５Ｄ 17/02 ３０３ Ｆ２５Ｄ 17/02 ３０３ 29/00 29/00 Ｚ Ｇ０７Ｆ 9/10 １０２ Ｇ０７Ｆ 9/10 １０２Ａ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F25D 17/02 303 F25D 17/02 303 29/00 29/00 Z G07F 9/10 102 G07F 9/10 102A

Claims (14)

【特許請求の範囲】[Claims] 【請求項１】 圧縮機、凝縮器、減圧手段、蒸発器を配
管で環状回路に接続し、可燃性冷媒を含む混合冷媒ある
いは単一成分からなる可燃性冷媒を前記環状回路に封入
してなる冷凍サイクルと加温ヒータで構成するとともに
前記蒸発器と加温ヒータを所定置が冷却と加温できるよ
うに配置し、かつ前記冷凍サイクルおよび加温ヒータを
制御して冷却と加温を行う冷却加温制御部を備え、前記
加温ヒータは表面温度を、前記可燃性冷媒の発火点より
低く設定してなる冷却加温装置。1. A compressor, a condenser, a pressure reducing means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. A cooling system comprising a refrigeration cycle and a heating heater, wherein the evaporator and the heating heater are arranged so that predetermined positions can be cooled and heated, and the cooling and heating are controlled by controlling the refrigeration cycle and the heating heater. A cooling heating device comprising a heating control unit, wherein the heating heater has a surface temperature set lower than the ignition point of the flammable refrigerant. 【請求項２】 圧縮機、凝縮器、減圧手段、蒸発器を配
管で環状回路に接続し、可燃性冷媒を含む混合冷媒ある
いは単一成分からなる可燃性冷媒を前記環状回路に封入
してなる冷凍サイクルと加温ヒータで構成するとともに
前記蒸発器と加温ヒータを所定置が冷却と加温できるよ
うに配置し、かつ前記冷凍サイクルおよび加温ヒータを
制御して冷却と加温を行う冷却加温制御部を備え、前記
冷凍サイクルをヒートポンプに構成し、このヒートポン
プと前記加温ヒータにより加温を行い、かつ前記加温ヒ
ータは前記可燃性冷媒の発火点より低い発熱容量に設定
してなる冷却加温装置。2. A compressor, a condenser, a pressure reducing means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. A cooling system comprising a refrigeration cycle and a heating heater, wherein the evaporator and the heating heater are arranged so that predetermined positions can be cooled and heated, and the cooling and heating are controlled by controlling the refrigeration cycle and the heating heater. A heating control unit is provided, the refrigeration cycle is configured as a heat pump, heating is performed by the heat pump and the heating heater, and the heating heater is set to a heat generation capacity lower than the ignition point of the flammable refrigerant. Become a cooling and heating device. 【請求項３】 圧縮機、凝縮器、減圧手段、複数の蒸発
器を配管で環状回路に接続し、可燃性冷媒を含む混合冷
媒あるいは単一成分からなる可燃性冷媒を前記環状回路
に封入してなる冷凍サイクルと加温ヒータで構成すると
ともに前記蒸発器と加温ヒータを所定置が冷却と加温で
きるように配置し、かつ前記冷凍サイクルおよび加温ヒ
ータを制御して冷却と加温を行う冷却加温制御部と、前
記冷凍サイクルをヒートポンプに構成し、前記蒸発器が
それぞれ冷却と加温が自由に選択できるようにする冷却
加温設定部とを備え、前記ヒートポンプと前記加温ヒー
タにより加温を行い、かつ前記加温ヒータは前記可燃性
冷媒の発火点より低い発熱容量に設定してなる冷却加温
装置。3. A compressor, a condenser, a pressure reducing means, and a plurality of evaporators are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. The evaporator and the heating heater are arranged so that predetermined positions can be cooled and heated, and the cooling and heating are controlled by controlling the refrigeration cycle and the heating heater. A cooling and heating control unit for performing cooling and heating, wherein the refrigeration cycle is configured as a heat pump, and a cooling and heating setting unit that allows the evaporator to freely select cooling and heating, respectively, the heat pump and the heating heater And the heating heater is set to a heating capacity lower than the ignition point of the flammable refrigerant. 【請求項４】 圧縮機、凝縮器、減圧手段、複数の蒸発
器を配管で環状回路に接続し、可燃性冷媒を含む混合冷
媒あるいは単一成分からなる可燃性冷媒を前記環状回路
に封入してなる冷凍サイクルと加温ヒータで構成すると
ともに前記蒸発器と加温ヒータを所定置が冷却と加温で
きるように配置し、かつ前記冷凍サイクルおよび加温ヒ
ータを制御して冷却と加温を行う冷却加温制御部と、前
記冷凍サイクルをヒートポンプに構成し、前記蒸発器の
うち、冷却専用の蒸発器を除く各蒸発器がそれぞれ冷却
と加温が自由に選択できるようにする冷却加温設定部と
を備え、前記ヒートポンプと前記加温ヒータにより加温
を行い、かつ前記加温ヒータは前記可燃性冷媒の発火点
より低い発熱容量に設定してなる冷却加温装置。4. A compressor, a condenser, a pressure reducing means, and a plurality of evaporators are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. The evaporator and the heating heater are arranged so that predetermined positions can be cooled and heated, and the cooling and heating are controlled by controlling the refrigeration cycle and the heating heater. A cooling and heating control unit for performing the cooling and heating, wherein the refrigeration cycle is configured as a heat pump, and among the evaporators, each of the evaporators other than the evaporator dedicated to cooling is capable of freely selecting between cooling and heating. A cooling and heating device comprising a setting unit, wherein the heating is performed by the heat pump and the heating heater, and the heating heater is set to a heat generation capacity lower than the ignition point of the flammable refrigerant. 【請求項５】 圧縮機、凝縮器、減圧手段、複数の蒸発
器を配管で環状回路に接続し、可燃性冷媒を含む混合冷
媒あるいは単一成分からなる可燃性冷媒を前記環状回路
に封入してなる冷凍サイクルとヒートポンプに構成する
とともに前記蒸発器を所定置が冷却と加温できるように
配置し、かつ前記冷凍サイクルを制御して冷却と加温を
行う冷却加温制御部と、前記蒸発器のうち、冷却専用の
蒸発器を除く各蒸発器がそれぞれ冷却と加温が自由に選
択できるようにする冷却加温設定部とを備え、前記ヒー
トポンプのみで加温を行い、加温ヒータを無くしてなる
冷却加温装置。5. A compressor, a condenser, a pressure reducing means, and a plurality of evaporators are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. A cooling and heating control unit configured to include a refrigeration cycle and a heat pump, wherein the evaporator is disposed so as to be capable of cooling and heating at a predetermined position, and wherein the cooling and heating control unit controls the refrigeration cycle to perform cooling and heating; Each of the evaporators, except for the evaporator dedicated to cooling, includes a cooling / warming setting unit that enables free selection of cooling and heating, and performs heating only with the heat pump, and includes a heating heater. A cooling and heating device that is lost. 【請求項６】 圧縮機、凝縮器、減圧手段、蒸発器を配
管で環状回路に接続し、可燃性冷媒を含む混合冷媒ある
いは単一成分からなる可燃性冷媒を前記環状回路に封入
してなる冷凍サイクルと加温ヒータで構成するとともに
前記蒸発器と加温ヒータを所定置が冷却と加温できるよ
うに配置し、かつ前記冷凍サイクルおよび加温ヒータを
制御して冷却と加温を行う冷却加温制御部を備え、加温
ヒータの使用時は、冷却用の蒸発器内に可燃性冷媒が滞
留しないようにしてなる冷却加温装置。6. A compressor, a condenser, a pressure reducing means, and an evaporator are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. A cooling system comprising a refrigeration cycle and a heating heater, wherein the evaporator and the heating heater are arranged so that predetermined positions can be cooled and heated, and the cooling and heating are controlled by controlling the refrigeration cycle and the heating heater. A cooling and heating device comprising a heating control unit, wherein a flammable refrigerant is prevented from staying in a cooling evaporator when a heating heater is used. 【請求項７】 蒸発器は冷凍サイクルを構成する環状回
路に接続した溶接部を常に外気へ連通している位置に配
置してなる請求項１〜請求項６のいずれか一項に記載の
冷却加温装置。7. The cooling device according to claim 1, wherein the evaporator is arranged at a position where a welded portion connected to the annular circuit forming the refrigeration cycle is always in communication with the outside air. Heating device. 【請求項８】 圧縮機、凝縮器、減圧手段、補助熱交換
器を配管で環状回路に接続し、可燃性冷媒を含む混合冷
媒あるいは単一成分からなる可燃性冷媒を前記環状回路
に封入してなる冷凍サイクルに構成し、前記補助熱交換
器と熱交換した２次冷媒を循環させ、所定置を冷却と加
温またはそのいずれかができるように配置した熱交換器
により前記冷凍サイクルを２次冷媒方式にしてなる冷却
加温装置。8. A compressor, a condenser, a pressure reducing means, and an auxiliary heat exchanger are connected to an annular circuit by piping, and a mixed refrigerant containing a flammable refrigerant or a flammable refrigerant composed of a single component is sealed in the annular circuit. The refrigeration cycle comprises a secondary refrigerant which has been heat-exchanged with the auxiliary heat exchanger, circulates the refrigerant, and arranges the refrigeration cycle by a heat exchanger arranged so that cooling and / or heating can be performed at a predetermined position. A cooling and heating device using a secondary refrigerant system. 【請求項９】 請求項１〜請求項８のいずれか一項に記
載の冷却加温装置を備えた自動販売機。9. A vending machine provided with the cooling and heating device according to any one of claims 1 to 8. 【請求項１０】 通気口のある機械室と複数の収納庫を
備えた自動販売機において、前記機械室に設けた圧縮機
と、前記機械室に設けた庫外熱交換器と、前記複数の収
納庫に各々設けた庫内熱交換器と、前記庫内熱交換器の
出入口の一方と前記圧縮機の吸入側及び吐出側とを各々
電磁弁を介して並列に接続する配管と、前記庫内熱交換
器の出入口の他方と前記庫外熱交換器の出入口の一方と
を減圧手段を介して接続する配管と、前記庫外熱交換器
の出入口の他方と前記圧縮機の吸入側及び吐出側とを各
々電磁弁を介して並列に接続する配管とからヒートポン
プサイクルを構成し、前記電磁弁の開閉及び前記減圧手
段の開度を制御する冷却加温制御部を備え、前記ヒート
ポンプサイクルに可燃性冷媒を封入したことを特徴とす
る冷却加温装置。10. A vending machine provided with a machine room having a vent and a plurality of storages, wherein a compressor provided in the machine room, an external heat exchanger provided in the machine room, An internal heat exchanger provided in each of the storages, a pipe connecting one of an inlet and an outlet of the internal heat exchanger, and a suction side and a discharge side of the compressor in parallel via electromagnetic valves, respectively, A pipe connecting the other of the entrance and exit of the internal heat exchanger and one of the entrance and exit of the external heat exchanger via a decompression means, and the other of the entrance and exit of the external heat exchanger and the suction side and discharge of the compressor A heat pump cycle is constituted by pipes connected in parallel with each other via an electromagnetic valve, and a cooling and heating control unit for controlling the opening and closing of the electromagnetic valve and the opening of the pressure reducing means is provided. A cooling and warming device characterized by containing a volatile refrigerant. 【請求項１１】 減圧手段は、複数の収納庫に各々設け
た庫内熱交換器の出入口の一方に設けた庫内側減圧手段
と、庫外熱交換器の出入口の一方に設けた庫外側減圧手
段を備え、前記庫内側減圧手段と前記庫外側減圧手段を
配管で接続したものである請求項１０に記載の冷却加温
装置。11. The decompression means comprises: a decompression inside means provided at one of the entrances and exits of the internal heat exchanger provided in each of the plurality of storages; and a decompression outside means provided at one of the entrances and exits of the external heat exchanger. 11. The cooling and heating device according to claim 10, further comprising means, wherein the inside-compartment pressure reducing means and the outside-compartment pressure reducing means are connected by piping. 【請求項１２】 電磁弁及び減圧手段を通気口のある機
械室に配置した請求項１０または請求項１１に記載の冷
却加温装置。12. The cooling and heating device according to claim 10, wherein the solenoid valve and the pressure reducing means are arranged in a machine room having a vent. 【請求項１３】 庫内熱交換器を溶接部のない１本の長
尺の管を蛇行させて形成した請求項１０から請求項１２
のいずれか一項に記載の冷却加温装置。13. The in-compartment heat exchanger is formed by meandering one long tube having no weld.
The cooling and heating device according to any one of claims 1 to 4. 【請求項１４】 自動販売機の複数の収納庫に加温ヒー
タを設けた請求項１０から請求項１３のいずれか一項に
記載の冷却加温装置。14. The cooling and heating device according to claim 10, wherein a heating heater is provided in a plurality of storages of the vending machine.
JP2001173682A 2000-09-28 2001-06-08 Cooling and heating apparatus, and automatic vending machine using this cooling and heating apparatus Pending JP2002174478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000296296 2000-09-28
JP2000-296296 2000-09-28
JP2001173682A JP2002174478A (en) 2000-09-28 2001-06-08 Cooling and heating apparatus, and automatic vending machine using this cooling and heating apparatus

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005227833A (en) * 2004-02-10 2005-08-25 Matsushita Electric Ind Co Ltd Automatic vending machine
JP2006031520A (en) * 2004-07-20 2006-02-02 Matsushita Electric Ind Co Ltd Automatic vending machine with cooling and heating system
JP2008225840A (en) * 2007-03-13 2008-09-25 Matsushita Electric Ind Co Ltd Control device for vending machine
JP2010107143A (en) * 2008-10-31 2010-05-13 Fujitsu General Ltd Refrigerating air conditioner
JP2010152673A (en) * 2008-12-25 2010-07-08 Fuji Electric Retail Systems Co Ltd Vending machine
WO2019215846A1 (en) * 2018-05-09 2019-11-14 三菱電機株式会社 Showcase
CN114076421A (en) * 2022-01-19 2022-02-22 浙江飞旋科技有限公司 Protection method and system for refrigeration system adopting magnetic suspension refrigeration compressor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005227833A (en) * 2004-02-10 2005-08-25 Matsushita Electric Ind Co Ltd Automatic vending machine
JP4513349B2 (en) * 2004-02-10 2010-07-28 パナソニック株式会社 vending machine
JP2006031520A (en) * 2004-07-20 2006-02-02 Matsushita Electric Ind Co Ltd Automatic vending machine with cooling and heating system
JP4513441B2 (en) * 2004-07-20 2010-07-28 パナソニック株式会社 Vending machine with cooling and heating system
JP2008225840A (en) * 2007-03-13 2008-09-25 Matsushita Electric Ind Co Ltd Control device for vending machine
JP2010107143A (en) * 2008-10-31 2010-05-13 Fujitsu General Ltd Refrigerating air conditioner
JP2010152673A (en) * 2008-12-25 2010-07-08 Fuji Electric Retail Systems Co Ltd Vending machine
WO2019215846A1 (en) * 2018-05-09 2019-11-14 三菱電機株式会社 Showcase
JPWO2019215846A1 (en) * 2018-05-09 2021-03-18 三菱電機株式会社 Showcase
CN114076421A (en) * 2022-01-19 2022-02-22 浙江飞旋科技有限公司 Protection method and system for refrigeration system adopting magnetic suspension refrigeration compressor
CN114076421B (en) * 2022-01-19 2022-03-29 浙江飞旋科技有限公司 Protection method and system for refrigeration system adopting magnetic suspension refrigeration compressor

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