WO2015159430A1 - Air conditioning device - Google Patents

Air conditioning device Download PDF

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Publication number
WO2015159430A1
WO2015159430A1 PCT/JP2014/061064 JP2014061064W WO2015159430A1 WO 2015159430 A1 WO2015159430 A1 WO 2015159430A1 JP 2014061064 W JP2014061064 W JP 2014061064W WO 2015159430 A1 WO2015159430 A1 WO 2015159430A1
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WO
WIPO (PCT)
Prior art keywords
motor
blower
air
temperature
temperature detection
Prior art date
Application number
PCT/JP2014/061064
Other languages
French (fr)
Japanese (ja)
Inventor
昌治 赤松
Original Assignee
三菱電機株式会社
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Priority to PCT/JP2014/061064 priority Critical patent/WO2015159430A1/en
Publication of WO2015159430A1 publication Critical patent/WO2015159430A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an air conditioner including a blower that uses a motor as a drive source.
  • a blower using a motor as a drive source and a current detection means for detecting a direct current value or a motor current value of an inverter circuit of the motor are provided, and the air volume of the blower is detected by the current detection means. Some of them are controlled according to the current value (see, for example, Patent Document 1).
  • the load-side unit is disposed on the ceiling, the outlet is connected to a duct previously installed on the ceiling, and the air conditioned by the load-side unit passes through the duct.
  • the actual duct static pressure is smaller than the assumed duct static pressure. It is suppressed that the life of the motor is shortened by the overload operation.
  • the conventional air conditioner since the air volume of the blower is controlled according to the current value detected by the current detection means, the motor heat generation is not sufficiently suppressed, and the motor life is shortened. There is.
  • a motor equipped with a protective device that stops the motor drive circuit when the heat generation of the winding is large is adopted as the motor of the blower, and the suppression of the heat generation of the motor becomes insufficient.
  • the air conditioning itself stops and the comfort of the user is reduced. That is, the conventional air conditioner has a problem that it is difficult to ensure that the life of the motor is shortened while ensuring the user's comfort.
  • the present invention has been made against the background of the above problems, and provides an air conditioner that can ensure suppression of a reduction in motor life while ensuring user comfort.
  • the purpose is to get.
  • An air conditioner includes a blower using a motor as a drive source, temperature detection means for detecting a temperature inside the motor, and control means for controlling the operation of the blower. The intensity of the air blown by the blower is changed according to the temperature detected by the temperature detecting means.
  • the control means changes the strength of the air blown by the blower according to the temperature detected by the temperature detecting means for detecting the temperature inside the motor.
  • the air volume of the blower is controlled according to the temperature inside the motor, it is difficult to prevent the motor heat generation from becoming insufficient, and it is possible to reliably prevent the motor life from being shortened. It becomes.
  • the motor is protected by continuing the blowing of the blower while changing the strength, it is possible to reduce the frequency at which the air conditioning itself stops and to ensure the comfort of the user. .
  • FIG. 1 It is a figure which shows the structure of the air conditioning apparatus which concerns on Embodiment 1.
  • FIG. 2 It is a figure which shows the structure of the motor of the air conditioning apparatus which concerns on Embodiment 1.
  • FIG. It is a figure which shows the structure of the air conditioning apparatus which concerns on Embodiment 2.
  • Embodiment 1 FIG. The air conditioning apparatus according to Embodiment 1 will be described. ⁇ Configuration of air conditioner> Below, the structure of the air conditioning apparatus which concerns on Embodiment 1 is demonstrated.
  • 1 is a diagram illustrating a configuration of an air-conditioning apparatus according to Embodiment 1.
  • FIG. 2 is a diagram illustrating a motor configuration of the air-conditioning apparatus according to Embodiment 1.
  • the flow of air is shown by the white arrow.
  • FIG. 2 shows a partial cross-sectional view of the motor 32.
  • the air conditioner 100 is disposed in the heat exchanger 21 and the blower 22 disposed in the main body 11 of the load side unit 1 and the control box 12 of the load side unit 1. And a control unit 23.
  • the blower 22 includes a fan 31 and a motor 32 serving as a drive source for the fan 31. When the fan 31 is driven by the motor 32, wind is sent to the heat exchanger 21.
  • the air heat-exchanged by the heat exchanger 21 may be directly supplied into the room from the air outlet formed in the main body 11 of the load side unit 1, or from the air outlet formed in the main body 11 of the load side unit 1. It may be supplied indoors through a duct.
  • the motor 32 is connected to the stator 42 fixed in the housing 41, the rotor 43 that rotates inside the stator 42, and the fan 31, and rotates integrally with the rotor 43. It has a main shaft 44, an inner thermo 45 that stops the drive circuit of the motor 32 when the heat generation of the winding is large, and a temperature detection unit 46 that detects the temperature of the winding.
  • the inner thermo 45 has a temperature detection unit 45a that detects the temperature of the winding, and stops the drive circuit of the motor 32 when the temperature detected by the temperature detection unit 45a is large.
  • the temperature detection unit 46 and the temperature detection unit 45a are temperature detection elements such as a thermistor, for example.
  • the temperature detection unit 46 may be attached to the surface of the winding of the stator 42.
  • the temperature detection part 46 is good to be attached to the vicinity of the temperature detection part 45a of the inner thermo45. With such a configuration, it is possible to reduce the difference between the temperature detected by the temperature detection unit 46 and the temperature detected by the temperature detection unit 45a.
  • the temperature detection part 46 is good to be arranged in parallel with the temperature detection part 45a on the surface which comprises the end surface of the axial direction of the stator 42 of a coil
  • the temperature detection unit 46 corresponds to “temperature detection means” in the present invention.
  • the temperature detection unit 46 may detect the temperature of other members inside the casing 41, or detect the temperature of the casing 41 or a member outside the casing 41 to detect the temperature of the casing 41.
  • the inner temperature may be estimated. That is, the “temperature detection means” in the present invention may be any device that substantially detects the temperature inside the motor 32. When the temperature detection unit 46 detects the temperature of the winding, the suppression of heat generation of the motor 32 is ensured.
  • the temperature detection part 46 and the temperature detection part 45a may be shared. In such a case, the temperature detection unit 45a corresponds to the “temperature detection means” in the present invention.
  • the temperature detection part 46 may detect temperature itself, and may detect the other physical quantity which can be converted into temperature. In other words, the “temperature detection means” in the present invention may be anything that substantially detects the temperature.
  • the drive circuit of the motor 32 and the temperature detection unit 46 are connected to the control unit 23.
  • the control unit 23 governs the operation of the load side unit 1.
  • the control unit 23 may be disposed other than the control box 12.
  • the control unit 23 may be configured with, for example, a microcomputer, a microprocessor unit, or the like, may be configured with updatable firmware or the like, and is a program module that is executed by a command from the CPU or the like. It may be.
  • the control unit 23 corresponds to a “control unit” in the present invention.
  • FIG. 3 is a diagram illustrating a control flow of the motor heat generation suppression operation of the air-conditioning apparatus according to Embodiment 1.
  • the control unit 23 performs the motor heat generation suppression operation as shown in FIG. 3 at all times or as necessary when the air conditioning apparatus 100 is operating.
  • the controller 23 acquires the motor internal temperature Tm detected by the temperature detector 46 in S101, and proceeds to S102. In S102, the control unit 23 determines whether or not the motor internal temperature Tm is lower than the preset set value Ts. If the motor internal temperature Tm is smaller, the control unit 23 returns to S101, and if not, the process proceeds to S103.
  • the set value Ts is a temperature lower than the set value Ti used as a threshold when determining whether the inner thermo 45 stops the drive circuit of the motor 32.
  • control unit 23 determines whether or not the temperature detection unit 46 has failed. If the temperature detection unit 46 has failed, the control unit 23 proceeds to S106, and if not, the process proceeds to S104. In S104, the control unit 23 sets the wind speed notch of the blower 22 one step lower, and proceeds to S105. In S105, the control unit 23 determines whether or not the set wind speed notch is in the lowest stage. If it is in the lowest stage, the control unit 23 proceeds to S107, and if not, returns to S101.
  • control unit 23 notifies the abnormality of the temperature detection unit 46 and proceeds to S108.
  • control unit 23 notifies the abnormality of the motor 32 and proceeds to S108.
  • the controller 23 abnormally stops the operation of the load side unit 1.
  • control unit 23 may increase the number of steps to lower the wind speed notch of the blower 22 as the difference between the motor internal temperature Tm and the set value Ts is larger.
  • control unit 23 may control the wind speed itself of the blower 22.
  • a temperature detection unit 46 that detects the temperature inside the motor 32
  • the control unit 23 determines the wind speed notch of the blower 22, that is, the air flow, according to the temperature detected by the temperature detection unit 46. Change the strength of. That is, since the air volume of the blower 22 is controlled according to the temperature inside the motor 32, it is difficult to suppress the heat generation of the motor 32 and the life of the motor 32 is shortened. Control is ensured. Moreover, since the motor 32 is protected by continuing the blowing of the blower 22 while changing the wind speed notch, that is, the strength, the frequency at which the air conditioning itself stops is reduced, and the comfort of the user is reduced. Can be secured.
  • the air blower 22 is the air blower of the load side unit 1, it is possible to supply the air-conditioned air to the room during the motor heat generation suppressing operation, so that the comfort of the user can be ensured. It becomes.
  • FIG. 4 is a diagram illustrating a configuration of the air-conditioning apparatus according to Embodiment 2. In FIG. 4, the air flow is indicated by white arrows.
  • the air outlet formed in the main body 11 of the load-side unit 1 of the air conditioner 100 is connected to an existing duct 101.
  • a damper 102 is disposed in the duct 101.
  • the air that has exchanged heat with the heat exchanger 21 is blown into the duct 101 from the blowout port formed in the main body 11 of the load side unit 1, and is supplied into the room via the damper 102.
  • the damper 102 is connected to the control unit 23.
  • the control unit 23 controls the operation of the load side unit 1 and the operation of the damper 102.
  • the control unit 23 may be divided into a control unit that controls the operation of the load-side unit 1 and a control unit that controls the operation of the damper 102, which communicate with each other. It may be arranged other than twelve.
  • FIG. 5 is a diagram illustrating a control flow of the motor heat generation suppression operation of the air-conditioning apparatus according to Embodiment 2.
  • the control unit 23 performs the motor heat generation suppression operation as shown in FIG. 5 at all times or as necessary.
  • the control unit 23 acquires the motor internal temperature Tm detected by the temperature detection unit 46 in S201, and proceeds to S202. In S202, the control unit 23 determines whether or not the motor internal temperature Tm is smaller than the preset set value Ts. If the motor internal temperature Tm is smaller, the control unit 23 returns to S201, and if not, the process proceeds to S203.
  • the set value Ts is a temperature lower than the set value Ti used as a threshold when determining whether the inner thermo 45 stops the drive circuit of the motor 32.
  • the control unit 23 determines whether or not the temperature detecting unit 46 has failed. If the temperature detecting unit 46 has failed, the control unit 23 proceeds to S206. If not, the process proceeds to S204. In S204, the control unit 23 sets the wind speed notch of the blower 22 one step lower, increases the opening of the damper 102, and proceeds to S205. In S205, the control unit 23 determines whether or not the set wind speed notch is at the lowest level, and if it is the lowest level, the control unit 23 proceeds to S207, and if not, returns to S201.
  • the control unit 23 notifies the abnormality of the temperature detection unit 46 in S206, and proceeds to S208. Moreover, the control part 23 alert
  • control unit 23 increases the number of steps to lower the wind speed notch of the blower 22 and increases the amount of change in the opening degree of the damper 102. Also good.
  • the air blower 22 is the air blower of the load side unit 1, it becomes possible to change the air volume of the air supplied indoors during motor heat generation suppression operation, and to improve a user's comfort. Is possible.
  • Embodiment 1 and Embodiment 2 were demonstrated, this invention is not limited to description of each embodiment. For example, it is possible to combine all or some of the embodiments.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

An air conditioning device (100) is provided with: an air blower (22) using a motor (32) as the drive source; a temperature detection means for detecting the temperature of the inside of the motor (32); and a control means for controlling the operation of the air blower (22). The control means is adapted to change, according to the temperature detected by the temperature detection means, the strength of air flow delivered by the air blower (22).

Description

空気調和装置Air conditioner
　本発明は、モーターを駆動源とする送風機を備えた空気調和装置に関するものである。 The present invention relates to an air conditioner including a blower that uses a motor as a drive source.
　従来の空気調和装置として、モーターを駆動源とする送風機と、モーターのインバーター回路の直流電流値又はモーター電流値を検出する電流検出手段と、を備え、送風機の風量が、電流検出手段で検出される電流値に応じて制御されるものがある（例えば、特許文献１を参照）。 As a conventional air conditioner, a blower using a motor as a drive source and a current detection means for detecting a direct current value or a motor current value of an inverter circuit of the motor are provided, and the air volume of the blower is detected by the current detection means. Some of them are controlled according to the current value (see, for example, Patent Document 1).
　例えば、そのような空気調和装置が、負荷側ユニットが天井裏に配設され、その吹出口が予め天井裏に設置されたダクトに接続され、負荷側ユニットで空調された空気がそのダクトを介して室内に供給されるタイプの空気調和装置である場合には、そのように制御されることで、実際のダクト静圧が、想定されたダクト静圧と比較して小さいことに起因して生じる、過負荷運転によって、モーターの寿命が短くなってしまうことが抑制される。 For example, in such an air conditioner, the load-side unit is disposed on the ceiling, the outlet is connected to a duct previously installed on the ceiling, and the air conditioned by the load-side unit passes through the duct. In the case of an air conditioner of the type that is supplied indoors, such control results in the fact that the actual duct static pressure is smaller than the assumed duct static pressure. It is suppressed that the life of the motor is shortened by the overload operation.
特開２００１－２８６１７９号公報（段落［０１１３］～段落［０１２３］、図１、図２）JP 2001-286179 A (paragraph [0113] to paragraph [0123], FIGS. 1 and 2)
　従来の空気調和装置では、送風機の風量が、電流検出手段で検出される電流値に応じて制御されるため、モーターの発熱の抑制が不十分となって、モーターの寿命が短くなってしまう場合がある。また、送風機のモーターとして、巻線の発熱が大きい際にモーターの駆動回路を停止させる保護装置（いわゆる、インナーサーモ）が付設されたモーターを採用して、モーターの発熱の抑制が不十分となる場合に備えることも可能であるが、そのような場合には、空調自体が停止してしまい、使用者の快適性が低下してしまう。つまり、従来の空気調和装置では、使用者の快適性を確保しつつ、モーターの寿命が短くなってしまうことの抑制を確実化することが困難であるという問題点があった。 In the conventional air conditioner, since the air volume of the blower is controlled according to the current value detected by the current detection means, the motor heat generation is not sufficiently suppressed, and the motor life is shortened. There is. In addition, a motor equipped with a protective device (so-called inner thermo) that stops the motor drive circuit when the heat generation of the winding is large is adopted as the motor of the blower, and the suppression of the heat generation of the motor becomes insufficient. Although it is possible to prepare for the case, in such a case, the air conditioning itself stops and the comfort of the user is reduced. That is, the conventional air conditioner has a problem that it is difficult to ensure that the life of the motor is shortened while ensuring the user's comfort.
　本発明は、上記のような課題を背景としてなされたものであり、使用者の快適性を確保しつつ、モーターの寿命が短くなってしまうことの抑制を確実化することができる空気調和装置を得ることを目的としている。 The present invention has been made against the background of the above problems, and provides an air conditioner that can ensure suppression of a reduction in motor life while ensuring user comfort. The purpose is to get.
　本発明に係る空気調和装置は、モーターを駆動源とする送風機と、前記モーターの内部の温度を検出する温度検出手段と、前記送風機の動作を制御する制御手段と、を備え、前記制御手段は、前記温度検出手段で検出される温度に応じて、前記送風機の送風の強弱を変化させるものである。 An air conditioner according to the present invention includes a blower using a motor as a drive source, temperature detection means for detecting a temperature inside the motor, and control means for controlling the operation of the blower. The intensity of the air blown by the blower is changed according to the temperature detected by the temperature detecting means.
　本発明に係る空気調和装置では、制御手段が、モーターの内部の温度を検出する温度検出手段で検出される温度に応じて、送風機の送風の強弱を変化させる。つまり、送風機の風量が、モーターの内部の温度に応じて制御されるため、モーターの発熱の抑制が不十分となる場合が生じにくくなって、モーターの寿命が短くなってしまうことの抑制が確実化される。また、送風機の送風が強弱を変化させつつ継続することによって、モーターの保護が図られるため、空調自体が停止してしまう頻度を低減して、使用者の快適性を確保することが可能となる。 In the air conditioner according to the present invention, the control means changes the strength of the air blown by the blower according to the temperature detected by the temperature detecting means for detecting the temperature inside the motor. In other words, since the air volume of the blower is controlled according to the temperature inside the motor, it is difficult to prevent the motor heat generation from becoming insufficient, and it is possible to reliably prevent the motor life from being shortened. It becomes. Further, since the motor is protected by continuing the blowing of the blower while changing the strength, it is possible to reduce the frequency at which the air conditioning itself stops and to ensure the comfort of the user. .
実施の形態１に係る空気調和装置の、構成を示す図である。It is a figure which shows the structure of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る空気調和装置の、モーターの構成を示す図である。It is a figure which shows the structure of the motor of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る空気調和装置の、モーター発熱抑制動作の制御フローを示す図である。It is a figure which shows the control flow of the motor heat_generation | fever suppression operation | movement of the air conditioning apparatus which concerns on Embodiment 1. FIG. 実施の形態２に係る空気調和装置の、構成を示す図である。It is a figure which shows the structure of the air conditioning apparatus which concerns on Embodiment 2. FIG. 実施の形態２に係る空気調和装置の、モーター発熱抑制動作の制御フローを示す図である。It is a figure which shows the control flow of the motor heat_generation | fever suppression operation | movement of the air conditioning apparatus which concerns on Embodiment 2. FIG.
　以下、本発明に係る空気調和装置について、図面を用いて説明する。
　なお、以下で説明する構成、動作等は、一例にすぎず、本発明に係る空気調和装置は、そのような構成、動作等である場合に限定されない。また、各図において、同一又は類似するものには、同一の符号を付すか、又は、符号を付すことを省略している。また、細かい構造については、適宜図示を簡略化又は省略している。また、重複又は類似する説明については、適宜簡略化又は省略している。 Hereinafter, an air conditioner according to the present invention will be described with reference to the drawings.
In addition, the structure, operation | movement, etc. which are demonstrated below are only examples, and the air conditioning apparatus which concerns on this invention is not limited to the case where it is such a structure, operation | movement, etc. Moreover, in each figure, the same code | symbol is attached | subjected to the same or similar thing, or attaching | subjecting code | symbol is abbreviate | omitted. Further, the illustration of the fine structure is simplified or omitted as appropriate. In addition, overlapping or similar descriptions are appropriately simplified or omitted.
実施の形態１．
　実施の形態１に係る空気調和装置について説明する。
＜空気調和装置の構成＞
　以下に、実施の形態１に係る空気調和装置の構成について説明する。
　図１は、実施の形態１に係る空気調和装置の、構成を示す図である。図２は、実施の形態１に係る空気調和装置の、モーターの構成を示す図である。なお、図１では、空気の流れを白抜き矢印で示している。また、図２では、モーター３２の部分断面図を示している。 Embodiment 1 FIG.
The air conditioning apparatus according to Embodiment 1 will be described.
<Configuration of air conditioner>
Below, the structure of the air conditioning apparatus which concerns on Embodiment 1 is demonstrated.
1 is a diagram illustrating a configuration of an air-conditioning apparatus according to Embodiment 1. FIG. FIG. 2 is a diagram illustrating a motor configuration of the air-conditioning apparatus according to Embodiment 1. In addition, in FIG. 1, the flow of air is shown by the white arrow. Further, FIG. 2 shows a partial cross-sectional view of the motor 32.
　図１に示されるように、空気調和装置１００は、負荷側ユニット１の本体１１内に配設された熱交換器２１及び送風機２２と、負荷側ユニット１の制御箱１２内に配設された制御部２３と、を備える。送風機２２は、ファン３１と、ファン３１の駆動源となるモーター３２と、を有する。ファン３１がモーター３２によって駆動されることで、熱交換器２１に風が送られる。熱交換器２１で熱交換した空気は、負荷側ユニット１の本体１１に形成された吹出口から直接室内に供給されてもよく、また、負荷側ユニット１の本体１１に形成された吹出口からダクトを介して室内に供給されてもよい。 As shown in FIG. 1, the air conditioner 100 is disposed in the heat exchanger 21 and the blower 22 disposed in the main body 11 of the load side unit 1 and the control box 12 of the load side unit 1. And a control unit 23. The blower 22 includes a fan 31 and a motor 32 serving as a drive source for the fan 31. When the fan 31 is driven by the motor 32, wind is sent to the heat exchanger 21. The air heat-exchanged by the heat exchanger 21 may be directly supplied into the room from the air outlet formed in the main body 11 of the load side unit 1, or from the air outlet formed in the main body 11 of the load side unit 1. It may be supplied indoors through a duct.
　図２に示されるように、モーター３２は、筐体４１内に固定されたステーター４２と、ステーター４２の内側で回動するローター４３と、ファン３１に連結され、ローター４３と一体的に回転する主軸４４と、巻線の発熱が大きい際にモーター３２の駆動回路を停止させるインナーサーモ４５と、巻線の温度を検出する温度検出部４６と、を有する。インナーサーモ４５は、巻線の温度を検出する温度検出部４５ａを有し、温度検出部４５ａによって検出された温度が大きい際にモーター３２の駆動回路を停止させる。 As shown in FIG. 2, the motor 32 is connected to the stator 42 fixed in the housing 41, the rotor 43 that rotates inside the stator 42, and the fan 31, and rotates integrally with the rotor 43. It has a main shaft 44, an inner thermo 45 that stops the drive circuit of the motor 32 when the heat generation of the winding is large, and a temperature detection unit 46 that detects the temperature of the winding. The inner thermo 45 has a temperature detection unit 45a that detects the temperature of the winding, and stops the drive circuit of the motor 32 when the temperature detected by the temperature detection unit 45a is large.
　温度検出部４６及び温度検出部４５ａは、例えば、サーミスタ等の温度検出素子である。温度検出部４６は、ステーター４２の巻線の表面に取り付けられるとよい。また、温度検出部４６は、インナーサーモ４５の温度検出部４５ａの近傍に取り付けられるとよい。そのように構成されることで、温度検出部４６で検出される温度と、温度検出部４５ａで検出される温度との差を小さくすることが可能となる。例えば、温度検出部４６は、巻線の、ステーター４２の軸方向の端面を構成する表面に、温度検出部４５ａと共に並設されるとよい。そのように構成されることで、モーター３２が大型化することを抑制しつつ、温度検出部４６で検出される温度と、温度検出部４５ａで検出される温度との差を小さくすることが可能となる。温度検出部４６は、本発明における「温度検出手段」に相当する。 The temperature detection unit 46 and the temperature detection unit 45a are temperature detection elements such as a thermistor, for example. The temperature detection unit 46 may be attached to the surface of the winding of the stator 42. Moreover, the temperature detection part 46 is good to be attached to the vicinity of the temperature detection part 45a of the inner thermo45. With such a configuration, it is possible to reduce the difference between the temperature detected by the temperature detection unit 46 and the temperature detected by the temperature detection unit 45a. For example, the temperature detection part 46 is good to be arranged in parallel with the temperature detection part 45a on the surface which comprises the end surface of the axial direction of the stator 42 of a coil | winding. With such a configuration, it is possible to reduce the difference between the temperature detected by the temperature detection unit 46 and the temperature detected by the temperature detection unit 45a while suppressing an increase in the size of the motor 32. It becomes. The temperature detection unit 46 corresponds to “temperature detection means” in the present invention.
　なお、温度検出部４６は、筐体４１の内側の他の部材の温度を検出してもよく、また、筐体４１又は筐体４１の外側の部材の温度を検出して、筐体４１の内側の温度を推定してもよい。つまり、本発明における「温度検出手段」は、実質的にモーター３２の内部の温度を検出するものであればよい。温度検出部４６が、巻線の温度を検出するものである場合には、モーター３２の発熱の抑制が確実化される。また、温度検出部４６と温度検出部４５ａとが共用されてもよい。そのような場合には、温度検出部４５ａが、本発明における「温度検出手段」に相当する。また、温度検出部４６は、温度自体を検出してもよく、また、温度に換算できる他の物理量を検出してもよい。つまり、本発明における「温度検出手段」は、実質的に温度を検出するものであればよい。 Note that the temperature detection unit 46 may detect the temperature of other members inside the casing 41, or detect the temperature of the casing 41 or a member outside the casing 41 to detect the temperature of the casing 41. The inner temperature may be estimated. That is, the “temperature detection means” in the present invention may be any device that substantially detects the temperature inside the motor 32. When the temperature detection unit 46 detects the temperature of the winding, the suppression of heat generation of the motor 32 is ensured. Moreover, the temperature detection part 46 and the temperature detection part 45a may be shared. In such a case, the temperature detection unit 45a corresponds to the “temperature detection means” in the present invention. Moreover, the temperature detection part 46 may detect temperature itself, and may detect the other physical quantity which can be converted into temperature. In other words, the “temperature detection means” in the present invention may be anything that substantially detects the temperature.
　モーター３２の駆動回路と温度検出部４６とは、制御部２３に接続される。制御部２３は、負荷側ユニット１の動作を司る。制御部２３は、制御箱１２以外に配設されてもよい。制御部２３は、例えば、マイコン、マイクロプロセッサユニット等で構成されてもよく、また、ファームウェア等の更新可能なもので構成されてもよく、また、ＣＰＵ等からの指令によって実行されるプログラムモジュール等であってもよい。制御部２３は、本発明における「制御手段」に相当する。 The drive circuit of the motor 32 and the temperature detection unit 46 are connected to the control unit 23. The control unit 23 governs the operation of the load side unit 1. The control unit 23 may be disposed other than the control box 12. The control unit 23 may be configured with, for example, a microcomputer, a microprocessor unit, or the like, may be configured with updatable firmware or the like, and is a program module that is executed by a command from the CPU or the like. It may be. The control unit 23 corresponds to a “control unit” in the present invention.
＜空気調和装置の動作＞
　以下に、実施の形態１に係る空気調和装置の動作について説明する。
　図３は、実施の形態１に係る空気調和装置の、モーター発熱抑制動作の制御フローを示す図である。
　制御部２３は、空気調和装置１００が稼働している際に、図３に示されるようなモーター発熱抑制動作を、常時又は必要に応じて行う。 <Operation of air conditioner>
Below, operation | movement of the air conditioning apparatus which concerns on Embodiment 1 is demonstrated.
FIG. 3 is a diagram illustrating a control flow of the motor heat generation suppression operation of the air-conditioning apparatus according to Embodiment 1.
The control unit 23 performs the motor heat generation suppression operation as shown in FIG. 3 at all times or as necessary when the air conditioning apparatus 100 is operating.
　制御部２３は、Ｓ１０１において、温度検出部４６で検出されるモーター内部温度Ｔｍを取得して、Ｓ１０２に進む。制御部２３は、Ｓ１０２において、モーター内部温度Ｔｍが予め設定された設定値Ｔｓと比較して小さいか否かを判定し、小さい場合はＳ１０１に戻り、小さくない場合は、Ｓ１０３に進む。設定値Ｔｓは、インナーサーモ４５がモーター３２の駆動回路を停止させるか否かを判定する際に閾値として用いられる、設定値Ｔｉと比較して低い温度である。 The controller 23 acquires the motor internal temperature Tm detected by the temperature detector 46 in S101, and proceeds to S102. In S102, the control unit 23 determines whether or not the motor internal temperature Tm is lower than the preset set value Ts. If the motor internal temperature Tm is smaller, the control unit 23 returns to S101, and if not, the process proceeds to S103. The set value Ts is a temperature lower than the set value Ti used as a threshold when determining whether the inner thermo 45 stops the drive circuit of the motor 32.
　制御部２３は、Ｓ１０３において、温度検出部４６が故障しているか否かを判定し、故障している場合にはＳ１０６に進み、故障していない場合にはＳ１０４に進む。制御部２３は、Ｓ１０４において、送風機２２の風速ノッチを一段下に設定し、Ｓ１０５に進む。制御部２３は、Ｓ１０５において、設定された風速ノッチが最下段であるか否かを判定し、最下段である場合にはＳ１０７に進み、最下段でない場合にはＳ１０１に戻る。 In S103, the control unit 23 determines whether or not the temperature detection unit 46 has failed. If the temperature detection unit 46 has failed, the control unit 23 proceeds to S106, and if not, the process proceeds to S104. In S104, the control unit 23 sets the wind speed notch of the blower 22 one step lower, and proceeds to S105. In S105, the control unit 23 determines whether or not the set wind speed notch is in the lowest stage. If it is in the lowest stage, the control unit 23 proceeds to S107, and if not, returns to S101.
　制御部２３は、Ｓ１０６において、温度検出部４６の異常を報知して、Ｓ１０８に進む。また、制御部２３は、Ｓ１０７において、モーター３２の異常を報知して、Ｓ１０８に進む。制御部２３は、Ｓ１０８において、負荷側ユニット１の運転を異常停止する。 In S106, the control unit 23 notifies the abnormality of the temperature detection unit 46 and proceeds to S108. In S107, the control unit 23 notifies the abnormality of the motor 32 and proceeds to S108. In S108, the controller 23 abnormally stops the operation of the load side unit 1.
　なお、制御部２３は、Ｓ１０４において、モーター内部温度Ｔｍと設定値Ｔｓとの差が大きい程、送風機２２の風速ノッチを下げる段数を多くしてもよい。また、送風機２２が、風速を連続的に変化させる機能を有する場合には、制御部２３が、送風機２２の風速自体を制御してもよい。制御部２３が、風速ノッチを制御する場合には、制御が簡素化される。 In S104, the control unit 23 may increase the number of steps to lower the wind speed notch of the blower 22 as the difference between the motor internal temperature Tm and the set value Ts is larger. In addition, when the blower 22 has a function of continuously changing the wind speed, the control unit 23 may control the wind speed itself of the blower 22. When the control unit 23 controls the wind speed notch, the control is simplified.
＜空気調和装置の作用＞
　以下に、実施の形態１に係る空気調和装置の作用について説明する。
　空気調和装置１００では、モーター３２の内部の温度を検出する温度検出部４６が設けられ、制御部２３が、温度検出部４６で検出される温度に応じて、送風機２２の風速ノッチ、つまり、送風の強弱を変化させる。つまり、送風機２２の風量が、モーター３２の内部の温度に応じて制御されるため、モーター３２の発熱の抑制が不十分となる場合が生じにくくなって、モーター３２の寿命が短くなってしまうことの抑制が確実化される。また、送風機２２の送風が、風速ノッチ、つまり、強弱を変化させつつ継続することによって、モーター３２の保護が図られるため、空調自体が停止してしまう頻度を低減して、使用者の快適性を確保することが可能となる。 <Operation of air conditioner>
Below, the effect | action of the air conditioning apparatus which concerns on Embodiment 1 is demonstrated.
In the air conditioner 100, a temperature detection unit 46 that detects the temperature inside the motor 32 is provided, and the control unit 23 determines the wind speed notch of the blower 22, that is, the air flow, according to the temperature detected by the temperature detection unit 46. Change the strength of. That is, since the air volume of the blower 22 is controlled according to the temperature inside the motor 32, it is difficult to suppress the heat generation of the motor 32 and the life of the motor 32 is shortened. Control is ensured. Moreover, since the motor 32 is protected by continuing the blowing of the blower 22 while changing the wind speed notch, that is, the strength, the frequency at which the air conditioning itself stops is reduced, and the comfort of the user is reduced. Can be secured.
　また、送風機２２が、負荷側ユニット１の送風機であるため、モーター発熱抑制動作中に、室内へ空調された空気を供給することが可能であるため、使用者の快適性を確保することが可能となる。 Moreover, since the air blower 22 is the air blower of the load side unit 1, it is possible to supply the air-conditioned air to the room during the motor heat generation suppressing operation, so that the comfort of the user can be ensured. It becomes.
実施の形態２．
　実施の形態２に係る空気調和装置について説明する。
　なお、実施の形態１と重複又は類似する説明は、適宜簡略化又は省略している。
＜空気調和装置の構成＞
　以下に、実施の形態２に係る空気調和装置の構成について説明する。
　図４は、実施の形態２に係る空気調和装置の、構成を示す図である。なお、図４では、空気の流れを白抜き矢印で示している。 Embodiment 2. FIG.
An air conditioner according to Embodiment 2 will be described.
Note that description overlapping or similar to that in Embodiment 1 is appropriately simplified or omitted.
<Configuration of air conditioner>
Below, the structure of the air conditioning apparatus which concerns on Embodiment 2 is demonstrated.
FIG. 4 is a diagram illustrating a configuration of the air-conditioning apparatus according to Embodiment 2. In FIG. 4, the air flow is indicated by white arrows.
　図４に示されるように、空気調和装置１００の負荷側ユニット１の本体１１に形成された吹出口は、既設のダクト１０１に接続される。ダクト１０１には、ダンパー１０２が配設される。熱交換器２１で熱交換した空気は、負荷側ユニット１の本体１１に形成された吹出口からダクト１０１に吹き出され、ダンパー１０２を介して室内に供給される。 As shown in FIG. 4, the air outlet formed in the main body 11 of the load-side unit 1 of the air conditioner 100 is connected to an existing duct 101. A damper 102 is disposed in the duct 101. The air that has exchanged heat with the heat exchanger 21 is blown into the duct 101 from the blowout port formed in the main body 11 of the load side unit 1, and is supplied into the room via the damper 102.
　ダンパー１０２は、制御部２３に接続される。制御部２３は、負荷側ユニット１の動作とダンパー１０２の動作とを司る。制御部２３が、互いに通信する、負荷側ユニット１の動作を司る制御部と、ダンパー１０２の動作を司る制御部と、に分かれていてもよく、ダンパー１０２の動作を司る制御部が、制御箱１２以外に配設されていてもよい。 The damper 102 is connected to the control unit 23. The control unit 23 controls the operation of the load side unit 1 and the operation of the damper 102. The control unit 23 may be divided into a control unit that controls the operation of the load-side unit 1 and a control unit that controls the operation of the damper 102, which communicate with each other. It may be arranged other than twelve.
＜空気調和装置の動作＞
　以下に、実施の形態２に係る空気調和装置の動作について説明する。
　図５は、実施の形態２に係る空気調和装置の、モーター発熱抑制動作の制御フローを示す図である。
　制御部２３は、空気調和装置１００が稼働している際に、図５に示されるようなモーター発熱抑制動作を、常時又は必要に応じて行う。 <Operation of air conditioner>
Below, operation | movement of the air conditioning apparatus which concerns on Embodiment 2 is demonstrated.
FIG. 5 is a diagram illustrating a control flow of the motor heat generation suppression operation of the air-conditioning apparatus according to Embodiment 2.
When the air conditioning apparatus 100 is operating, the control unit 23 performs the motor heat generation suppression operation as shown in FIG. 5 at all times or as necessary.
　制御部２３は、Ｓ２０１において、温度検出部４６で検出されるモーター内部温度Ｔｍを取得して、Ｓ２０２に進む。制御部２３は、Ｓ２０２において、モーター内部温度Ｔｍが予め設定された設定値Ｔｓと比較して小さいか否かを判定し、小さい場合はＳ２０１に戻り、小さくない場合は、Ｓ２０３に進む。設定値Ｔｓは、インナーサーモ４５がモーター３２の駆動回路を停止させるか否かを判定する際に閾値として用いられる、設定値Ｔｉと比較して低い温度である。 The control unit 23 acquires the motor internal temperature Tm detected by the temperature detection unit 46 in S201, and proceeds to S202. In S202, the control unit 23 determines whether or not the motor internal temperature Tm is smaller than the preset set value Ts. If the motor internal temperature Tm is smaller, the control unit 23 returns to S201, and if not, the process proceeds to S203. The set value Ts is a temperature lower than the set value Ti used as a threshold when determining whether the inner thermo 45 stops the drive circuit of the motor 32.
　制御部２３は、Ｓ２０３において、温度検出部４６が故障しているか否かを判定し、故障している場合にはＳ２０６に進み、故障していない場合にはＳ２０４に進む。制御部２３は、Ｓ２０４において、送風機２２の風速ノッチを一段下に設定すると共に、ダンパー１０２の開度を大きくして、Ｓ２０５に進む。制御部２３は、Ｓ２０５において、設定された風速ノッチが最下段であるか否かを判定し、最下段である場合にはＳ２０７に進み、最下段でない場合にはＳ２０１に戻る。 In S203, the control unit 23 determines whether or not the temperature detecting unit 46 has failed. If the temperature detecting unit 46 has failed, the control unit 23 proceeds to S206. If not, the process proceeds to S204. In S204, the control unit 23 sets the wind speed notch of the blower 22 one step lower, increases the opening of the damper 102, and proceeds to S205. In S205, the control unit 23 determines whether or not the set wind speed notch is at the lowest level, and if it is the lowest level, the control unit 23 proceeds to S207, and if not, returns to S201.
　制御部２３は、Ｓ２０６において、温度検出部４６の異常を報知して、Ｓ２０８に進む。また、制御部２３は、Ｓ２０７において、モーター３２の異常を報知して、Ｓ２０８に進む。制御部２３は、Ｓ２０８において、負荷側ユニット１の運転を異常停止する。 The control unit 23 notifies the abnormality of the temperature detection unit 46 in S206, and proceeds to S208. Moreover, the control part 23 alert | reports abnormality of the motor 32 in S207, and progresses to S208. In S208, the control unit 23 abnormally stops the operation of the load side unit 1.
　なお、制御部２３は、Ｓ２０４において、モーター内部温度Ｔｍと設定値Ｔｓとの差が大きい程、送風機２２の風速ノッチを下げる段数を多くすると共に、ダンパー１０２の開度の変化量を大きくしてもよい。 In S204, as the difference between the motor internal temperature Tm and the set value Ts increases, the control unit 23 increases the number of steps to lower the wind speed notch of the blower 22 and increases the amount of change in the opening degree of the damper 102. Also good.
＜空気調和装置の作用＞
　以下に、実施の形態２に係る空気調和装置の作用について説明する。
　空気調和装置１００では、送風機２２から吹き出される風が通過する風路に配設されたダンパー１０２の開度が、送風機２２の風速ノッチ、つまり、送風の強弱と連動して変化する。そのため、モーター発熱抑制動作中に、その風路から吹き出される風の風量を変化させることが可能となる。 <Operation of air conditioner>
Below, the effect | action of the air conditioning apparatus which concerns on Embodiment 2 is demonstrated.
In the air conditioner 100, the opening degree of the damper 102 disposed in the air passage through which the wind blown from the blower 22 passes changes in conjunction with the wind speed notch of the blower 22, that is, the strength of the blow. Therefore, it is possible to change the air volume of the air blown from the air path during the motor heat generation suppressing operation.
　また、送風機２２が、負荷側ユニット１の送風機であるため、モーター発熱抑制動作中に、室内に供給される風の風量を変化させることが可能となって、使用者の快適性を向上することが可能となる。 Moreover, since the air blower 22 is the air blower of the load side unit 1, it becomes possible to change the air volume of the air supplied indoors during motor heat generation suppression operation, and to improve a user's comfort. Is possible.
　以上、実施の形態１及び実施の形態２について説明したが、本発明は各実施の形態の説明に限定されない。例えば、各実施の形態の全部又は一部を組み合わせることも可能である。 As mentioned above, although Embodiment 1 and Embodiment 2 were demonstrated, this invention is not limited to description of each embodiment. For example, it is possible to combine all or some of the embodiments.
　１　負荷側ユニット、１１　本体、１２　制御箱、２１　熱交換器、２２　送風機、２３　制御部、３１　ファン、３２　モーター、４１　筐体、４２　ステーター、４３　ローター、４４　主軸、４５　インナーサーモ、４５ａ　温度検出部、４６　温度検出部、１００　空気調和装置、１０１　ダクト、１０２　ダンパー。 1 load side unit, 11 main body, 12 control box, 21 heat exchanger, 22 blower, 23 control unit, 31 fan, 32 motor, 41 housing, 42 stator, 43 rotor, 44 spindle, 45 inner thermo, 45a temperature detection Part, 46 temperature detection part, 100 air conditioner, 101 duct, 102 damper.

Claims (3)

  1. 　モーターを駆動源とする送風機と、
    　前記モーターの内部の温度を検出する温度検出手段と、
    　前記送風機の動作を制御する制御手段と、を備え、
    　前記制御手段は、前記温度検出手段で検出される温度に応じて、前記送風機の送風の強弱を変化させる、空気調和装置。     A blower using a motor as a drive source;
    Temperature detecting means for detecting the temperature inside the motor;
    Control means for controlling the operation of the blower,
    The said control means is an air conditioning apparatus which changes the strength of the ventilation of the said air blower according to the temperature detected by the said temperature detection means.
  2. 　前記送風機から吹き出される風が通過する風路に配設されたダンパーの開度は、前記送風機の送風の強弱の変化と連動して変化する、請求項１に記載の空気調和装置。 The air conditioner according to claim 1, wherein the opening degree of the damper disposed in the air passage through which the air blown from the blower passes changes in conjunction with a change in strength of the blower of the blower.
  3. 　前記送風機は、室内に空調された空気を供給する負荷側ユニットの送風機である、請求項１又は２に記載の空気調和装置。 The air conditioner according to claim 1 or 2, wherein the blower is a load side unit blower that supplies air conditioned in a room.
PCT/JP2014/061064 2014-04-18 2014-04-18 Air conditioning device WO2015159430A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047497B2 (en) * 1981-05-25 1985-10-22 東プレ株式会社 Air volume control device for central air conditioning equipment
JPS62106245A (en) * 1985-10-31 1987-05-16 Toshiba Corp Air-conditioning machine
JPH06101901A (en) * 1991-11-28 1994-04-12 Eakonsutaa Kk Air blowing rate controller in concentrated air conditioning apparatus
JP2001248884A (en) * 2000-03-03 2001-09-14 Corona Corp Controller for air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047497B2 (en) * 1981-05-25 1985-10-22 東プレ株式会社 Air volume control device for central air conditioning equipment
JPS62106245A (en) * 1985-10-31 1987-05-16 Toshiba Corp Air-conditioning machine
JPH06101901A (en) * 1991-11-28 1994-04-12 Eakonsutaa Kk Air blowing rate controller in concentrated air conditioning apparatus
JP2001248884A (en) * 2000-03-03 2001-09-14 Corona Corp Controller for air conditioner

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