JPH08327215A - Deep freezer - Google Patents
Deep freezerInfo
- Publication number
- JPH08327215A JPH08327215A JP15516795A JP15516795A JPH08327215A JP H08327215 A JPH08327215 A JP H08327215A JP 15516795 A JP15516795 A JP 15516795A JP 15516795 A JP15516795 A JP 15516795A JP H08327215 A JPH08327215 A JP H08327215A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- cooler
- storage chamber
- freezer
- insulating box
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
- F25D2317/0655—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the top
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
- F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、貯蔵室内を冷凍温度に
することにより、食品などを凍結保存する冷凍庫に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freezer that freezes and stores foods and the like by setting a freezing temperature in a storage chamber.
【０００２】[0002]
【従来の技術】従来この種冷凍庫は、レストランの厨房
やスーパーマーケットの店舗などに設置されるものであ
り、断熱箱体の貯蔵室内に冷凍食品を収納して冷却器に
より−２０℃〜−３０℃などの冷凍温度に冷却すると共
に、貯蔵室の開口は断熱性の扉によって開閉自在に閉塞
する構成とされていた。2. Description of the Related Art Conventionally, this type of freezer has been installed in a kitchen of a restaurant or a store of a supermarket. It stores frozen foods in a storage chamber of an insulating box and cools it from -20 ° C to -30 ° C. In addition to cooling to the freezing temperature, the opening of the storage chamber was configured to be opened and closed by a heat insulating door.
【０００３】ところで、係る冷凍庫では扉の開放によっ
て貯蔵室内の冷気と比較的高温多湿の外気とが入れ代わ
ると、再び扉が閉じられた後は入れ代わった外気が冷や
されて急速に収縮するため、貯蔵室内の圧力は著しく低
下する。そのため、扉を開放するために必要な力も大き
くなり、扉の開放操作が困難となるばかりでなく、大き
な力で引っ張らなければならないために、扉の把手など
が破損してしまう危険性もあった。By the way, in such a freezer, when the cold air in the storage chamber and the outside air of relatively high temperature and humidity are exchanged by opening the door, after the door is closed again, the exchanged outside air is cooled and contracts rapidly. The pressure in the storage chamber drops significantly. Therefore, the force required to open the door also becomes large, not only making it difficult to open the door, but also pulling with a large force, there is a risk that the handle of the door will be damaged. .
【０００４】そこで、例えば特開平６−１７４３６０号
公報（Ｆ２５Ｄ２３／００）では排水路の途中にＹ字管
を接続し、貯蔵室内の圧力が低下した際には貯蔵室内と
断熱箱体外とを連通させることにより、外気を貯蔵室内
に導入して係る圧力低下を緩和できるようにしていた。Therefore, for example, in Japanese Unexamined Patent Publication (Kokai) No. 6-174360 (F25D23 / 00), a Y-shaped pipe is connected in the middle of the drainage channel, and when the pressure in the storage chamber drops, the storage chamber and the outside of the heat insulating box are separated from each other. By communicating with each other, the outside air is introduced into the storage chamber so that the pressure drop can be alleviated.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、係る従
来の冷凍庫ではＹ字管の出口から冷気が漏出してしま
い、出口付近に結露が発生するため、前記公報にも示さ
れる如き逆止弁を取り付けて冷気の流出を阻止しなけれ
ばならない問題があった。However, in such a conventional freezer, cold air leaks out from the outlet of the Y-shaped tube, and dew condensation occurs near the outlet. Therefore, a check valve as disclosed in the above publication is attached. There was a problem that had to prevent the outflow of cold air.
【０００６】また、従来では連通路の断面積が決まって
おり、単位時間当たりの外気導入量の調整ができなかっ
たため、扉を閉じて直ぐに開く際、圧力低下が比較的少
ない場合（例えば、貯蔵室内の設定温度が比較的高い状
況）と、圧力低下が急激となる場合（例えば、貯蔵室内
の設定温度が著しく低い状況）とで扉の開放に必要な力
が変化してしまう。Further, in the past, since the cross-sectional area of the communication passage was fixed and the amount of outside air introduced per unit time could not be adjusted, when the pressure drop was relatively small when the door was closed and immediately opened (for example, storage The force required to open the door changes depending on whether the set temperature in the room is relatively high) or when the pressure drop is abrupt (for example, the set temperature in the storage room is extremely low).
【０００７】即ち、圧力低下が比較的少ない状況に合わ
せて連通路の断面積を縮小すると、圧力低下が急激とな
る状況では扉の開放に大きな力が必要となると共に、逆
に圧力低下が急激な状況に合わせて連通路の断面積を拡
大すると、圧力低下が少ない状況では扉を軽く開放でき
るものの、今度は外気導入量が過剰となって冷却能力に
悪影響を与えてしまう問題があった。That is, if the cross-sectional area of the communication passage is reduced in accordance with the situation where the pressure drop is relatively small, a large force is required to open the door in the situation where the pressure drop is rapid, and conversely the pressure drop is rapid. If the cross-sectional area of the communication passage is enlarged according to the above situation, the door can be opened lightly in a situation where the pressure drop is small, but this time there is a problem that the amount of outside air introduced becomes excessive and the cooling capacity is adversely affected.
【０００８】本発明は、係る従来の技術的課題を解決す
るために成されたものであり、扉の開放操作性を改善す
ると共に、冷却効果の改善も図った冷凍庫を提供するこ
とを目的とする。The present invention has been made to solve the above-mentioned conventional technical problems, and an object of the present invention is to provide a freezer which improves the opening operability of the door and also improves the cooling effect. To do.
【０００９】[0009]
【課題を解決するための手段】即ち、請求項１の発明の
冷凍庫は、断熱箱体と、この断熱箱体内に構成された貯
蔵室を開閉自在に閉塞する扉と、冷凍装置の冷却器と、
この冷却器と熱交換した冷気を貯蔵室内に循環する送風
機と、断熱箱体外に設けられ、冷却器と共に冷凍装置の
冷媒回路を構成する圧縮機とを備えたものであって、送
風機の冷気吐出側に一端が開口すると共に、他端が断熱
箱体外に開口した通気部を形成し、この通気部の他端開
口を圧縮機の吐出側に指向させたものである。That is, a freezer according to the invention of claim 1 is a heat insulating box, a door for opening and closing a storage chamber formed in the heat insulating box, and a cooler for a refrigerating apparatus. ,
A blower that circulates cool air that has exchanged heat with this cooler in the storage chamber, and a compressor that is provided outside the heat insulating box and that constitutes a refrigerant circuit of the refrigeration system together with the cooler. A ventilation part is formed, one end of which is opened on the discharge side and the other end of which is opened outside the heat insulating box, and the other end of the ventilation part is directed toward the discharge side of the compressor.
【００１０】請求項２の発明の冷凍庫は、断熱箱体と、
この断熱箱体内に構成された貯蔵室を開閉自在に閉塞す
る扉と、冷凍装置の冷却器と、この冷却器と熱交換した
冷気を貯蔵室内に循環する送風機と、断熱箱体外に設け
られ、冷却器と共に冷凍装置の冷媒回路を構成する圧縮
機とを備えたものであって、一端が貯蔵室内に連通して
開口すると共に、他端が断熱箱体外に開口した通気部を
形成し、この通気部に、開度を調整可能なバルブを設け
たものである。A freezer according to a second aspect of the present invention comprises a heat-insulating box,
A door that opens and closes the storage chamber configured inside the heat insulating box, a cooler of the refrigerating device, a blower that circulates the cold air that has exchanged heat with the cooler in the storage chamber, and the outside of the heat insulating box are provided. A compressor that constitutes a refrigerant circuit of a refrigeration system together with a cooler, one end of which communicates with the storage chamber and has an opening, and the other end of which forms a ventilation portion that opens outside the heat-insulating box. The ventilation part is provided with a valve whose opening can be adjusted.
【００１１】[0011]
【作用】請求項１の発明の冷凍庫によれば、扉が開放さ
れて閉じられた後に貯蔵室内の圧力が低下すると、通気
部から外気が貯蔵室内に進入して係る圧力低下を緩和す
るので、扉の開放に必要な力を軽減し、その開放操作性
を改善することができる。また、連通部は送風機の冷気
吐出側に一端が開口しており、流入した外気は送風機か
ら吹き付けられる冷気によって直ぐに拡散されるため、
一端開口付近に着霜が生じ難くなると共に、生じたとし
ても吹き付けられる冷気によって直ぐに昇華できる。According to the freezer of the invention of claim 1, when the pressure in the storage chamber decreases after the door is opened and closed, the outside air enters the storage chamber from the ventilation portion and alleviates the pressure drop. The force required to open the door can be reduced and its opening operability can be improved. Further, the communication portion has one end open to the cool air discharge side of the blower, and the inflowing outside air is immediately diffused by the cool air blown from the blower,
It becomes difficult for frost to form near the opening, and even if frost forms, it can be immediately sublimated by the cold air blown.
【００１２】特に、連通部の他端は断熱箱体外に開口し
て圧縮機の吐出側に指向しているので、連通部から流出
した冷気は圧縮機の吐出側に吹き付けられることにな
り、圧縮機の耐久性を向上し、且つ、冷却効果の改善を
図ることができると共に、断熱箱体外における結露の発
生も解消することが可能となる。In particular, since the other end of the communication portion is opened outside the heat insulating box and is directed toward the discharge side of the compressor, the cold air flowing out from the communication portion is blown to the discharge side of the compressor. The durability of the compressor can be improved, the cooling effect can be improved, and the occurrence of dew condensation outside the heat insulating box can be eliminated.
【００１３】請求項２の発明の冷凍庫によっても扉が開
放されて閉じられた後に貯蔵室内の圧力が低下すると、
通気部から外気が貯蔵室内に進入して係る圧力低下を緩
和するので、扉の開放に必要な力を軽減し、その開放操
作性を改善することができる。Even when the freezer according to the second aspect of the present invention reduces the pressure in the storage chamber after the door is opened and closed,
Since the outside air enters the storage chamber from the ventilation part to reduce the pressure drop, it is possible to reduce the force required to open the door and improve the opening operability.
【００１４】特に、連通部には開度を調整可能なバルブ
を設けたので、貯蔵室内の設定温度や周囲環境などの状
況に合わせて単位時間当たりの外気導入量を調整するこ
とができるようになる。従って、扉の開放操作性を常に
良好に維持することが可能となると共に、過剰な外気導
入も防止して冷却効果の改善を図ることができるように
なるものである。In particular, since the communication part is provided with a valve whose opening can be adjusted, the amount of outside air introduced per unit time can be adjusted according to the conditions such as the set temperature in the storage chamber and the surrounding environment. Become. Therefore, it is possible to always maintain good door operability and prevent excessive introduction of outside air to improve the cooling effect.
【００１５】[0015]
【実施例】以下、図面に基づき本発明の実施例を詳述す
る。図１は本発明の冷凍庫１の正面図、図２は冷凍庫１
の平面図、図３は図２のＡ−Ａ線断面図、図４は図２の
Ｂ−Ｂ線断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a front view of a freezer 1 of the present invention, and FIG. 2 is a freezer 1.
Of FIG. 3, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a sectional view taken along the line BB of FIG.
【００１６】実施例の冷凍庫１は、例えばレストランの
厨房等に設置される前後に開口した所謂パススルータイ
プの業務用冷凍庫であり、何れも前後に開口した鋼板製
の外箱２及びこの外箱２内に間隔を存して組み込まれた
内箱３と、発泡ポリウレタン等の発泡断熱材４とから成
る断熱箱体６により構成されている。そして、断熱箱体
６の前後の開口は断熱扉７、８にて何れも開閉自在に閉
塞されている。The freezer 1 of the embodiment is a so-called pass-through type commercial freezer which is installed in a kitchen or the like of a restaurant, for example, and is opened in the front and back. It is composed of an insulating box body 6 which is composed of an inner box 3 and a foamed heat insulating material 4 such as polyurethane foam, which are installed inside with a space therebetween. The front and rear openings of the heat insulating box 6 are closed by heat insulating doors 7 and 8, respectively.
【００１７】断熱箱体６の天壁６Ａ中央部には前後に吸
込口１２と吐出口１３が形成され、これら吸込口１２及
び吐出口１３を上から塞ぐかたちで補助断熱材１４が取
り付けられて、この補助断熱材１４内には冷却室１６が
構成されている。この冷却室１６は各口１２、１３にて
断熱箱体６内に構成された貯蔵室１８に連通しており、
係る冷却室１６内には冷凍装置の冷媒回路を構成する冷
却器１９が配設され、吸込口１２には送風機２１が取り
付けられる。A suction port 12 and a discharge port 13 are formed in the front and rear of the central portion of the top wall 6A of the heat insulating box 6, and an auxiliary heat insulating material 14 is attached so as to close the suction port 12 and the discharge port 13 from above. A cooling chamber 16 is formed in the auxiliary heat insulating material 14. The cooling chamber 16 communicates with the storage chamber 18 formed in the heat insulating box body 6 at each of the ports 12 and 13,
A cooler 19 that constitutes a refrigerant circuit of the refrigeration system is disposed in the cooling chamber 16 and a blower 21 is attached to the suction port 12.
【００１８】また、補助断熱材１４の向かって左側方の
天壁６Ａ上には同じく冷凍装置の冷媒回路を構成する圧
縮機３１や凝縮器３２、凝縮器用送風機３３が据え付け
られ、天壁６Ａ上の前後はパネル２３、２４にて隠蔽さ
れる。前記凝縮器３２は前側のパネル２３の直後に配置
されると共に、その後に凝縮器用送風機３３が設けら
れ、圧縮機３１は凝縮器用送風機３３の後方に配置され
ている。A compressor 31, a condenser 32, and a condenser blower 33, which also constitute the refrigerant circuit of the refrigerating apparatus, are installed on the ceiling wall 6A on the left side of the auxiliary heat insulating material 14, and on the ceiling wall 6A. The front and back of the are hidden by the panels 23 and 24. The condenser 32 is arranged immediately after the front panel 23, and a condenser blower 33 is provided after that, and the compressor 31 is arranged behind the condenser blower 33.
【００１９】尚、３６は天壁６Ａ上に設けられた電装箱
であり、３７はパネル２３に取り付けられたコントロー
ルボックスである。また、３８・・は貯蔵室１８内の支
柱３９に複数段架設された棚である。Reference numeral 36 is an electrical equipment box provided on the top wall 6A, and 37 is a control box attached to the panel 23. Further, 38, ... are shelves that are erected in a plurality of stages on the columns 39 in the storage chamber 18.
【００２０】更に、冷却器１９から冷気が吹き出される
側、即ち、送風機２１の冷気吐出側における補助断熱材
１４の左側壁には、それを貫通する開口４１が穿設され
ており、この開口４１には連通部を構成するための熱伝
導率の低い樹脂やゴム製のパイプ４２の一端が連通接続
されている。このパイプ４２は補助断熱材１４より出て
前方に向かった後、左方に延在し、その他端開口４３は
後方に折曲されて前記圧縮機３１の吐出配管３１Ｄ（吐
出側）に指向されている。Further, the left side wall of the auxiliary heat insulating material 14 on the side where the cool air is blown out from the cooler 19, that is, on the cool air discharge side of the blower 21, is provided with an opening 41 penetrating it. One end of a pipe 42 made of resin or rubber having a low thermal conductivity for forming a communication portion is connected to 41. The pipe 42 extends from the auxiliary heat insulating material 14 toward the front and then extends to the left, and the other end opening 43 is bent backward and directed to the discharge pipe 31D (discharge side) of the compressor 31. ing.
【００２１】更にまた、このパイプ４２の途中にはバル
ブ４６が介設されている。このバルブ４６は手動により
通路の断面積を調整することができるものである。Furthermore, a valve 46 is provided in the middle of the pipe 42. This valve 46 can manually adjust the cross-sectional area of the passage.
【００２２】以上の構成で次に冷凍庫１の動作を説明す
る。尚、前記バルブ４６は所定の開度にて開放している
ものとする。そして、前記圧縮機３１及び送風機２１が
運転されると、冷却器１９にて冷却された冷却室１６内
の冷気は冷却器１９から図３の右方に向かって吹き出さ
れた後、吐出口１３より貯蔵室１８内に吐出され、図３
中矢印の如く内部を循環して冷却した後、吸込口１２よ
り吸い込まれて冷却室１６に帰還する。係る冷気循環に
よって貯蔵室１８内は例えば−２０℃〜−３０℃の範囲
の任意の値に設定される冷凍温度に維持される。Next, the operation of the freezer 1 having the above structure will be described. The valve 46 is assumed to be open at a predetermined opening. When the compressor 31 and the blower 21 are operated, the cool air in the cooling chamber 16 cooled by the cooler 19 is blown out from the cooler 19 toward the right side in FIG. Is discharged into the storage chamber 18 from FIG.
After being circulated and cooled as indicated by the middle arrow, it is sucked from the suction port 12 and returned to the cooling chamber 16. By such cold air circulation, the inside of the storage chamber 18 is maintained at the freezing temperature set to an arbitrary value in the range of, for example, -20 ° C to -30 ° C.
【００２３】また、凝縮器用送風機３３も運転され、外
気が前面のパネル２３の下側から図２中矢印の如く吸引
されて凝縮器３２に通風される。そして、凝縮器３２を
空冷した後、後方の圧縮機３１にも吹き付けられ、空冷
した後、後面のパネル２４の下側から流出する。The condenser blower 33 is also operated, and the outside air is sucked from the lower side of the front panel 23 as shown by the arrow in FIG. Then, after cooling the condenser 32 by air, the condenser 32 is also blown to the compressor 31 at the rear side, and after cooling by air, flows out from the lower side of the rear panel 24.
【００２４】一方、前記冷却器１９から吹き出された冷
気は開口４１周辺に吹き付けられ、その一部は開口４１
に流入する。この開口４１に流入した冷気はパイプ４２
内を経てバルブ４６を通過した後、他端開口４３より後
方に吐出されて圧縮機３１の吐出配管３１Ｄに吹き付け
られる。On the other hand, the cool air blown out from the cooler 19 is blown around the opening 41, and a part of it is opened.
Flows into. The cold air flowing into the opening 41 is pipe 42
After passing through the inside and passing through the valve 46, it is discharged rearward from the other end opening 43 and sprayed onto the discharge pipe 31D of the compressor 31.
【００２５】この冷気によって、圧縮機３１の吐出側が
冷却され、その吐出ガス（冷媒）温度が低下せられるの
で、圧縮機３１の焼き付きが防止され、耐久性が向上す
る。ここで、圧縮機３１の吐出ガス温度が低下すると、
冷媒の比体積が小さくなって冷媒回路内の冷媒循環量が
増加するので、トータルとして冷凍装置の冷却効果は向
上する。This cold air cools the discharge side of the compressor 31 and lowers the temperature of the discharge gas (refrigerant) thereof, so that seizure of the compressor 31 is prevented and durability is improved. Here, when the discharge gas temperature of the compressor 31 decreases,
Since the specific volume of the refrigerant is reduced and the amount of refrigerant circulation in the refrigerant circuit is increased, the cooling effect of the refrigeration system is improved as a whole.
【００２６】更に、冷気が流出する圧縮機３１周辺の温
度は比較的高いので、他端開口４３周囲における結露の
発生も解消できる。また、断熱箱体６の天壁６Ａにパイ
プ４２（連通部）を設けているので、実施例の如く前後
が開口した冷凍庫１であっても、連通路を確実に形成す
ることができる。Further, since the temperature around the compressor 31 where the cool air flows out is relatively high, the occurrence of dew condensation around the other end opening 43 can be eliminated. Further, since the pipe 42 (communication part) is provided on the top wall 6A of the heat insulating box 6, the communication passage can be reliably formed even in the freezer 1 having the front and rear openings as in the embodiment.
【００２７】次に、扉７或いは８が一旦開放されて閉じ
られると、開放中に貯蔵室１８内の冷気と比較的高温多
湿の外気とが入れ代わり、扉７、８を閉じた後に冷却さ
れて体積が収縮するため、貯蔵室１８内の圧力は低下す
る。係る圧力低下が発生すると、パイプ４２の他端開口
４３から外気がパイプ４２を経て開口４１より冷却室１
６内に入り、貯蔵室１８に進入するので、係る圧力低下
は緩和され、次の扉７、８の開放に必要な力を軽減し、
その開放操作性を改善することができる。Next, when the door 7 or 8 is once opened and closed, the cold air in the storage chamber 18 and the outside air of relatively high temperature and humidity are exchanged during the opening, and the door 7 or 8 is cooled after being closed. Since the volume contracts, the pressure in the storage chamber 18 drops. When such a pressure drop occurs, the outside air from the other end opening 43 of the pipe 42 passes through the pipe 42, the opening 41, and the cooling chamber 1.
Since it enters the inside of 6 and enters the storage chamber 18, such a pressure drop is alleviated, and the force required to open the next doors 7 and 8 is reduced,
The open operability can be improved.
【００２８】また、開口４１は送風機２１の冷気吐出側
に位置しており、流入した外気は冷却器１９から吹き出
される冷気によって直ぐに拡散されるため、開口４１付
近に着霜が生じ難くなると共に、生じたとしても吹き付
けられる冷気によって直ぐに昇華できる。The opening 41 is located on the cool air discharge side of the blower 21, and the inflowing outside air is immediately diffused by the cool air blown out from the cooler 19, so that frost is less likely to occur near the opening 41. Even if it occurs, it can be immediately sublimated by the cold air blown.
【００２９】特に、パイプ４２には開度を調整可能なバ
ルブ４６が設けられているので、パイプ４２を経て流入
する外気の単位時間当たりの量を調整することができ
る。そして、例えば周囲の温度が比較的低く、且つ、貯
蔵室１８の温度が高く（−２０℃など）設定されてお
り、圧力低下の度合いが少ない場合などには、バルブ４
６を開度を絞ることにより、過剰な外気の導入を防止し
て冷却効果の改善を図ることができる。Particularly, since the pipe 42 is provided with the valve 46 whose opening can be adjusted, the amount of outside air flowing in through the pipe 42 per unit time can be adjusted. Then, for example, when the ambient temperature is relatively low, the temperature of the storage chamber 18 is set high (-20 ° C., etc.), and the degree of pressure drop is small, the valve 4
By narrowing the opening of 6, it is possible to prevent excessive introduction of outside air and improve the cooling effect.
【００３０】一方、例えば周囲の温度が比較的高く、且
つ、貯蔵室１８の温度が低く（−３０℃など）設定され
ており、急激に圧力低下が起こる場合などには、バルブ
４６の開度を大きくすることにより、扉７、８の開放操
作性を良好に維持することができる。即ち、貯蔵室１８
内の設定温度や周囲環境などの状況に合わせ、貯蔵室１
８内の冷却効果を改善しつつ、扉７、８の開閉操作性を
良好に維持することが可能となる。そして、周囲温度が
高い場合にバルブ４６の開度を大きくすることは、圧縮
機３１の冷却効果の向上にもつながる。On the other hand, for example, when the ambient temperature is relatively high and the temperature of the storage chamber 18 is set low (-30 ° C. or the like) and a sudden pressure drop occurs, the opening degree of the valve 46 is changed. By increasing, the operability of opening the doors 7 and 8 can be favorably maintained. That is, the storage room 18
Storage room 1 according to the conditions such as the set temperature in the room and the surrounding environment
It is possible to maintain the open / close operability of the doors 7 and 8 favorably while improving the cooling effect in the inside 8. Further, increasing the opening degree of the valve 46 when the ambient temperature is high also leads to an improvement in the cooling effect of the compressor 31.
【００３１】尚、実施例ではバルブ４６を手動式とした
が、それに限らず、例えば貯蔵室１８内の温度や圧力を
検知するコントローラを設け、このコントローラによ
り、前記温度が高い（或いは圧力が高い）ときには開度
を絞り、温度が低い（或いは圧力が低い）ときには拡大
するように、その開度を自動調整するようにしても良
い。Although the valve 46 is of a manual type in the embodiment, the invention is not limited to this, and a controller for detecting the temperature and pressure in the storage chamber 18, for example, is provided, and this controller increases the temperature (or the pressure is high). ), The opening may be reduced, and the opening may be automatically adjusted so as to increase when the temperature is low (or the pressure is low).
【００３２】また、実施例では前後に開口する断熱箱体
６から成る冷凍庫１について説明したが、一側のみに開
口する断熱箱体から成る冷凍庫にも本発明は有効であ
る。また、Further, in the embodiment, the freezer 1 having the heat-insulating box body 6 opened at the front and back has been described, but the present invention is also effective for the freezer having the heat-insulating box body opened only on one side. Also,
【００３３】[0033]
【発明の効果】以上詳述した如く請求項１の発明によれ
ば、扉が開放されて閉じられた後に貯蔵室内の圧力が低
下すると、通気部から外気が貯蔵室内に進入して係る圧
力低下を緩和するので、扉の開放に必要な力を軽減し、
その開放操作性を改善することができる。また、連通部
は送風機の冷気吐出側に一端が開口しており、流入した
外気は送風機から吹き付けられる冷気によって直ぐに拡
散されるため、一端開口付近に着霜が生じ難くなると共
に、生じたとしても吹き付けられる冷気によって直ぐに
昇華できる。As described above in detail, according to the first aspect of the invention, when the pressure in the storage chamber drops after the door is opened and closed, the outside air enters the storage chamber from the ventilation part and the pressure drops. To reduce the force required to open the door,
The open operability can be improved. Further, the communication portion has one end open to the cool air discharge side of the blower, and the inflowing outside air is immediately diffused by the cool air blown from the blower, so that frost formation is less likely to occur near the one end opening, and even if it occurs Can be immediately sublimated by the cold air blown.
【００３４】特に、連通部の他端は断熱箱体外に開口し
て圧縮機の吐出側に指向しているので、連通部から流出
した冷気は圧縮機の吐出側に吹き付けられることにな
り、圧縮機の耐久性を向上し、且つ、冷却効果の改善を
図ることができると共に、断熱箱体外における結露の発
生も解消することが可能となる。In particular, since the other end of the communicating portion is opened outside the heat insulating box and directed toward the discharge side of the compressor, the cold air flowing out from the communicating portion is blown to the discharge side of the compressor. The durability of the compressor can be improved, the cooling effect can be improved, and the occurrence of dew condensation outside the heat insulating box can be eliminated.
【００３５】請求項２の発明によっても扉が開放されて
閉じられた後に貯蔵室内の圧力が低下すると、通気部か
ら外気が貯蔵室内に進入して係る圧力低下を緩和するの
で、扉の開放に必要な力を軽減し、その開放操作性を改
善することができる。According to the second aspect of the present invention, when the pressure in the storage chamber decreases after the door is opened and closed, the outside air enters the storage chamber from the ventilation section and alleviates the pressure drop. The required force can be reduced and the opening operability can be improved.
【００３６】特に、連通部には開度を調整可能なバルブ
を設けたので、貯蔵室内の設定温度や周囲環境などの状
況に合わせて単位時間当たりの外気導入量を調整するこ
とができるようになる。従って、扉の開放操作性を常に
良好に維持することが可能となると共に、過剰な外気導
入も防止して冷却効果の改善を図ることができるように
なるものである。In particular, since a valve whose opening can be adjusted is provided in the communication part, the amount of outside air introduced per unit time can be adjusted according to the conditions such as the set temperature in the storage chamber and the surrounding environment. Become. Therefore, it is possible to always maintain good door operability and prevent excessive introduction of outside air to improve the cooling effect.
【図１】本発明の冷凍庫の正面図である。FIG. 1 is a front view of a freezer according to the present invention.
【図２】本発明の冷凍庫の平面図である。FIG. 2 is a plan view of the freezer of the present invention.
【図３】図２のＡ−Ａ線断面図である。3 is a cross-sectional view taken along the line AA of FIG.
【図４】図２のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB in FIG.
１ 冷凍庫 ６ 断熱箱体 ７、８ 扉 １６ 冷却室 １８ 貯蔵室 １９ 冷却器 ２１ 送風機 ３１ 圧縮機 ４１ 開口 ４２ パイプ ４３ 他端開口 ４６ バルブ 1 Freezer 6 Insulation Box 7, 8 Door 16 Cooling Chamber 18 Storage Room 19 Cooler 21 Blower 31 Compressor 41 Opening 42 Pipe 43 Other End Opening 46 Valve
Claims (2)
た貯蔵室を開閉自在に閉塞する扉と、冷凍装置の冷却器
と、この冷却器と熱交換した冷気を貯蔵室内に循環する
送風機と、前記断熱箱体外に設けられ、前記冷却器と共
に前記冷凍装置の冷媒回路を構成する圧縮機とを備えた
冷凍庫において、 前記送風機の冷気吐出側に一端が開口すると共に、他端
が前記断熱箱体外に開口した通気部を形成し、この通気
部の他端開口を前記圧縮機の吐出側に指向させたことを
特徴とする冷凍庫。1. A heat insulating box, a door that opens and closes a storage chamber formed in the heat insulating box, a cooler of a refrigerating apparatus, and cold air that has exchanged heat with the cooler in the storage chamber. In a freezer including a blower and a compressor that is provided outside the heat insulating box and that constitutes a refrigerant circuit of the refrigeration system together with the cooler, one end is opened on the cool air discharge side of the blower, and the other end is A freezer, characterized in that a ventilation part opened to the outside of the heat insulating box is formed, and an opening at the other end of this ventilation part is directed toward the discharge side of the compressor.
た貯蔵室を開閉自在に閉塞する扉と、冷凍装置の冷却器
と、この冷却器と熱交換した冷気を貯蔵室内に循環する
送風機と、前記断熱箱体外に設けられ、前記冷却器と共
に前記冷凍装置の冷媒回路を構成する圧縮機とを備えた
冷凍庫において、 一端が前記貯蔵室内に連通して開口すると共に、他端が
前記断熱箱体外に開口した通気部を形成し、この通気部
に、開度を調整可能なバルブを設けたことを特徴とする
冷凍庫。2. A heat insulating box, a door that opens and closes a storage chamber formed inside the heat insulating box, a cooler of a refrigerating apparatus, and cool air that has exchanged heat with the cooler is circulated in the storage room. In a freezer equipped with a blower and a compressor that is provided outside the heat insulating box and that constitutes a refrigerant circuit of the refrigeration system together with the cooler, one end communicates with the storage chamber and opens, and the other end A freezer, characterized in that a ventilation part opened to the outside of the heat insulating box is formed, and a valve whose opening can be adjusted is provided in this ventilation part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15516795A JPH08327215A (en) | 1995-05-30 | 1995-05-30 | Deep freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15516795A JPH08327215A (en) | 1995-05-30 | 1995-05-30 | Deep freezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08327215A true JPH08327215A (en) | 1996-12-13 |
Family
ID=15599982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15516795A Pending JPH08327215A (en) | 1995-05-30 | 1995-05-30 | Deep freezer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08327215A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6941762B2 (en) * | 2000-08-23 | 2005-09-13 | University Of Virginia Patent Foundation | Automated storage and retrieval apparatus for freezers and related method thereof |
| JP2007240042A (en) * | 2006-03-07 | 2007-09-20 | Sanyo Electric Co Ltd | Cooling storage |
| CN102356291A (en) * | 2008-07-31 | 2012-02-15 | 汉密尔顿存储技术公司 | Tube picking mechanism for automated, ultra-low temperature storage and retrieval system |
| EP3336461A1 (en) * | 2016-12-13 | 2018-06-20 | Whirlpool Corporation | Refrigeration appliance fan |
| CN108316491A (en) * | 2018-03-30 | 2018-07-24 | 中铁第四勘察设计院集团有限公司 | A kind of railroad platform cold chain docking heat-insulation system |
| JP2019035509A (en) * | 2017-08-10 | 2019-03-07 | ホシザキ株式会社 | Cooling storage |
| US11828518B2 (en) | 2016-12-13 | 2023-11-28 | Whirlpool Corporation | Refrigeration appliance fan |
-
1995
- 1995-05-30 JP JP15516795A patent/JPH08327215A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6941762B2 (en) * | 2000-08-23 | 2005-09-13 | University Of Virginia Patent Foundation | Automated storage and retrieval apparatus for freezers and related method thereof |
| JP2007240042A (en) * | 2006-03-07 | 2007-09-20 | Sanyo Electric Co Ltd | Cooling storage |
| JP4688698B2 (en) * | 2006-03-07 | 2011-05-25 | 三洋電機株式会社 | Cooling storage |
| CN102356291A (en) * | 2008-07-31 | 2012-02-15 | 汉密尔顿存储技术公司 | Tube picking mechanism for automated, ultra-low temperature storage and retrieval system |
| EP3336461A1 (en) * | 2016-12-13 | 2018-06-20 | Whirlpool Corporation | Refrigeration appliance fan |
| US10837694B2 (en) | 2016-12-13 | 2020-11-17 | Whirlpool Corporation | Refrigeration appliance fan |
| US11828518B2 (en) | 2016-12-13 | 2023-11-28 | Whirlpool Corporation | Refrigeration appliance fan |
| JP2019035509A (en) * | 2017-08-10 | 2019-03-07 | ホシザキ株式会社 | Cooling storage |
| CN108316491A (en) * | 2018-03-30 | 2018-07-24 | 中铁第四勘察设计院集团有限公司 | A kind of railroad platform cold chain docking heat-insulation system |
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