WO2019058456A1 - Outdoor unit of air conditioner - Google Patents

Outdoor unit of air conditioner Download PDF

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Publication number
WO2019058456A1
WO2019058456A1 PCT/JP2017/033914 JP2017033914W WO2019058456A1 WO 2019058456 A1 WO2019058456 A1 WO 2019058456A1 JP 2017033914 W JP2017033914 W JP 2017033914W WO 2019058456 A1 WO2019058456 A1 WO 2019058456A1
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WO
WIPO (PCT)
Prior art keywords
heater
outdoor unit
air conditioner
temperature
outside air
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PCT/JP2017/033914
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French (fr)
Japanese (ja)
Inventor
和博 井口
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三菱電機株式会社
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2019542867A priority Critical patent/JPWO2019058456A1/en
Priority to PCT/JP2017/033914 priority patent/WO2019058456A1/en
Publication of WO2019058456A1 publication Critical patent/WO2019058456A1/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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof

Definitions

  • the present invention relates to an outdoor unit of an air conditioner having a separator that separates a blower chamber and a machine chamber.
  • the outdoor unit of the conventional air conditioner when the operation is stopped when the outside air is low, the temperature of the outdoor heat exchanger drops during the operation stop, and the liquid refrigerant stagnates in the outdoor heat exchanger. As a result, the refrigerant is sucked in a liquid state to the compressor at the start of heating, and the refrigerant and the refrigerator oil are mixed and diluted in the compressor, and the oil concentration of the compressor becomes thin. Then, if the operation is continued for a long time in a state where the oil concentration of the compressor is low, there is a possibility that the motor shaft or the like is insufficiently lubricated to cause problems such as burning. Then, the outdoor unit of the air conditioner provided with the mechanism which warms an outdoor heat exchanger is proposed (for example, refer patent document 1).
  • the outdoor unit of the air conditioner of Patent Document 1 includes a heater disposed on the upstream side of the air flow by the air blower and on the downstream side of the outdoor heat exchanger at a substantially constant distance from the outdoor heat exchanger. The radiant heat from the heater warms the outdoor heat exchanger.
  • the heater is disposed on the upstream side of the blower of the flow of air by the blower and on the downstream side of the outdoor heat exchanger. Therefore, a part of the wind which goes to a outdoor heat exchanger from a fan is intercepted, and the subject that the heat exchange efficiency will fall by the fall of the amount of winds occurred.
  • the heater needs to be disposed on the upstream side of the blower of the air flow by the blower and on the downstream side of the outdoor heat exchanger at a substantially constant distance from the outdoor heat exchanger. was there.
  • the present invention has been made to solve the above-described problems, and suppresses the decrease in heat exchange efficiency, improves assembly workability, and suppresses the accumulation of liquid refrigerant in the outdoor heat exchanger. It is an object of the present invention to provide an outdoor unit of an air conditioner capable of
  • An outdoor unit of an air conditioner according to the present invention is provided in a casing forming an outer shell, a separator that divides the inside of the casing into a blower chamber and a machine chamber, and is installed in the blower chamber and heats between air and refrigerant.
  • An outdoor heat exchanger that performs replacement, a blower that is installed in the blower chamber and that blows air to the outdoor heat exchanger, a compressor that is installed in the machine chamber, that compresses a refrigerant, and the blower chamber side of the separator And a heater provided on the surface of the
  • the heater is provided on the surface of the separator on the fan chamber side, assembling workability can be improved.
  • the wind from the blower to the outdoor heat exchanger is not blocked by the heater, it is possible to suppress a decrease in heat exchange efficiency.
  • by warming the outdoor heat exchanger with the heater it is possible to suppress the accumulation of liquid refrigerant in the outdoor heat exchanger. That is, it is possible to suppress the reduction of the heat exchange efficiency and to improve the assembly workability and to suppress the accumulation of the liquid refrigerant in the outdoor heat exchanger.
  • FIG. 1 is a perspective view showing an appearance of an outdoor unit 100 of an air conditioner according to Embodiment 1 of the present invention.
  • FIG. 2 is a first perspective view showing the internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • FIG. 3 is a second perspective view showing the internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • FIG. 4 is a third perspective view showing the internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • FIG. 5 is a plan view showing an internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • FIGS. 1 to 5 the configuration of the outdoor unit 100 of the air conditioner according to the first embodiment will be described based on FIGS. 1 to 5.
  • terms that indicate directions such as “upper,” “lower,” “right,” “left,” “front,” “rear,” etc. are used as appropriate to facilitate understanding. This is for illustrative purposes, and these terms are not intended to limit the present invention.
  • “up”, “down”, “right”, “left”, “front”, “rear”, etc. are used in a state where the outdoor unit 100 of the air conditioner is viewed from the front. .
  • the outdoor unit 100 of an air conditioner is equipped with the housing
  • the housing 1 includes a front panel 51 forming the front of the outer shell and a side panel 52 forming the left side of the outer shell.
  • the front panel 51 and the side panel 52 are made of, for example, a heat reflecting material which is a material having a high heat reflectance such as iron.
  • the outdoor unit 100 of an air conditioner is provided with the separator 10 which divides the inside of the housing
  • the separator 10 which divides the inside of the housing
  • an outdoor heat exchanger 5 for exchanging heat between air and a refrigerant, and a fan 4 for blowing air to the outdoor heat exchanger 5 are installed.
  • a compressor 2 for compressing a refrigerant and an electric item box 3 for containing various electric items are installed in the machine room 10B.
  • an outside air temperature detection device 20 for detecting the outside air temperature is provided in the housing 1.
  • the outside air temperature detection device 20 is configured by, for example, a thermistor.
  • a heater 11 constituted of, for example, a sheathed heater is provided on the side surface of the separator 10 on the side of the fan chamber 10A.
  • the heater 11 is provided from the vicinity of the upper end to the vicinity of the lower end of the separator 10 in order to easily transfer heat to the whole of the outdoor heat exchanger 5 in the vertical direction. Further, the heater 11 is provided from the vicinity of the front end of the separator 10 to the vicinity of the rear end so as to easily transfer heat to the entire outdoor heat exchanger 5 in the front-rear direction.
  • the heater 11 is bent and fixed to the separator 10 so as to avoid the uneven portion 12 formed on the separator 10.
  • FIG. 6 is a functional block of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • a control device 30 is provided in the electrical item box 3.
  • the control apparatus 30 is provided with the main control part 31, the memory
  • the main control unit 31 operates the operating frequency of the compressor 2 and the number of rotations of the blower 4 (including ON / OFF) based on the detection value of the outside air temperature detection device 20 and an instruction from a remote control (not shown). And, the control of the electric energy (including ON / OFF) of the heater 11 is instructed to the drive unit 33.
  • the storage unit 32 stores various information such as a first temperature T1 and a second temperature T2 described later.
  • the drive unit 33 controls the operating frequency of the compressor 2, the number of rotations of the blower 4 (including ON / OFF), and the amount of power of the heater 11 (including ON / OFF) based on an instruction from the main control unit 31. It is
  • control device 30 includes the storage unit 32.
  • the present invention is not limited to this, and the storage unit 32 may be provided separately from the control device 30.
  • FIG. 7 is a diagram showing a control flow of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • control processing of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 1 will be described with reference to FIG. 7.
  • Control device 30 determines whether the outside air temperature detected by outside air temperature detection device 20 is higher than a first temperature T1 set in advance (step S101).
  • the first temperature T1 is a temperature at which the accumulation of the liquid refrigerant in the outdoor heat exchanger 5 may occur.
  • step S101 When it is determined that the outside air temperature is higher than the first temperature T1 (YES in step S101), the control device 30 performs the process of step S101 again. On the other hand, when it is determined that the outside air temperature is equal to or lower than the first temperature T1 (NO in step S101), the control device 30 turns on the heater 11 (step S102).
  • the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than a second temperature T2 set in advance (step S103).
  • the second temperature T2 is a temperature obtained by adding a predetermined allowable value to a temperature at which liquid refrigerant is not likely to be accumulated in the outdoor heat exchanger 5, and the second temperature T2> the first temperature T1. It is.
  • step S103 When determining that the outside air temperature is higher than the second temperature T2 (YES in step S103), the control device 30 turns off the heater 11 (step S104), and returns to the process of step S101. On the other hand, when the control device 30 determines that the outside air temperature is equal to or lower than the second temperature T2 (NO in step S103), the control device 30 performs the process of step S103 again.
  • control device 30 determines whether the outside air temperature is higher than the first temperature T1 regardless of the operation of the compressor 2 in the first embodiment, the present invention is not limited thereto. If the outside air temperature does not fall below the first temperature T1 during the operation of the compressor 2, the control device 30 determines whether the operation of the compressor 2 is stopped. Then, if it is determined that the operation of the compressor 2 is stopped, it may be determined whether the outside air temperature is higher than the first temperature T1.
  • the outdoor unit 100 of the air conditioner includes the housing 1 forming the outer shell, and the separator 10 dividing the inside of the housing 1 into the fan room 10A and the machine room 10B.
  • the outdoor heat exchanger 5 is installed in the fan room 10A and performs heat exchange between air and refrigerant, and the fan 4 installed in the fan room 10A and performs air blowing to the outdoor heat exchanger 5 There is.
  • the compressor 2 installed in the machine room 10B and compressing a refrigerant
  • the heater 11 provided in the surface by the side of the fan room 10A of the separator 10 is provided.
  • the outdoor unit 100 of the air conditioner according to the first embodiment since the heater 11 is provided on the surface of the separator 10 on the fan chamber 10A side, assembling workability can be improved. Moreover, since the wind from the blower 4 to the outdoor heat exchanger 5 is not blocked by the heater 11, a decrease in heat exchange efficiency can be suppressed. Then, by warming the outdoor heat exchanger 5 by the heater 11, accumulation of liquid refrigerant in the outdoor heat exchanger 5 can be suppressed. That is, the outdoor unit 100 of the air conditioner according to the first embodiment suppresses the decrease in heat exchange efficiency, and improves the assembly workability while suppressing the accumulation of liquid refrigerant in the outdoor heat exchanger 5 be able to.
  • the outdoor unit 100 of the air conditioner according to the first embodiment includes the outside air temperature detection device 20 that detects the outside air temperature, and the control device 30 that controls the heater 11. Then, when it is determined that the outside air temperature detected by the outside air temperature detection device 20 is equal to or less than the first temperature T1 set in advance, the control device 30 turns on the heater 11. Further, when it is determined that the outside air temperature detected by the outside air temperature detection device 20 is higher than the second temperature T2 set in advance, the control device 30 turns off the heater 11.
  • the control device 30 has the outside air temperature equal to or less than the temperature at which the liquid refrigerant may stagnate in the outdoor heat exchanger 5.
  • the heater 11 is turned on. Further, the control device 30 turns off the heater 11 when the outside air temperature detected by the outside air temperature detection device 20 becomes higher than a temperature at which the liquid refrigerant is not likely to be accumulated in the outdoor heat exchanger 5. . By doing so, accumulation of liquid refrigerant in the outdoor heat exchanger 5 can be suppressed, and the outside air temperature is a temperature at which there is no possibility that accumulation of liquid refrigerant in the outdoor heat exchanger 5 will occur. Since the heater 11 is turned off, the power consumption can be reduced.
  • casing 1 of the outdoor unit 100 of the air conditioner concerning this Embodiment 1 is equipped with the front panel 51 and the side panel 52, and the front panel 51 and the side panel 52 are comprised with heat reflective material. It is done.
  • the outdoor heat exchanger can be made of the heater 11 also using heat reflection.
  • the effect of warming 5 can be enhanced. That is, since the entire outdoor heat exchanger 5 can be efficiently heated by the heater 11, the amount of heat generated by the heater 11 can be reduced, and power consumption can be reduced.
  • the outdoor unit 100 of the air conditioner according to the first embodiment only the ON / OFF of the heater 11 is performed according to the outside air temperature, but in the outdoor unit 100 of the air conditioner according to the second embodiment, the outdoor air Not only the ON / OFF of the heater 11 but also the change of electric energy is performed according to the temperature.
  • FIG. 8 is a diagram showing a control flow of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 2 of the present invention.
  • control processing of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 2 will be described with reference to FIG.
  • the example which controls the electric energy of the heater 11 in three steps of largest “strong”, the smallest “weak”, and “middle” among them is demonstrated below, it is not limited to it, There may be two stages, or four or more stages.
  • the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than a preset first temperature T1 (step S201).
  • the first temperature T1 is a temperature at which the accumulation of the liquid refrigerant in the outdoor heat exchanger 5 may occur.
  • step S201 When it is determined that the outside air temperature is higher than the first temperature T1 (YES in step S201), the control device 30 performs the process of step S201 again. On the other hand, when determining that the outside air temperature is equal to or lower than the first temperature T1 (NO in step S201), the control device 30 turns on the heater 11 (step S202), and proceeds to the process of step S203.
  • step S203 the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is equal to or lower than a preset fourth temperature T4.
  • step S203 When determining that the outside air temperature is equal to or lower than the fourth temperature T4 (YES in step S203), the control device 30 sets the power amount of the heater 11 to "strong" (step S204), and returns to the process of step S203. On the other hand, when it is determined that the outside air temperature is higher than the fourth temperature T4 (NO in step S203), the control device 30 proceeds to the process of step S205.
  • step S205 the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than the fourth temperature T4 and is equal to or less than a preset third temperature T3. Note that third temperature T3> fourth temperature T4.
  • step S205 When determining that the outside air temperature is higher than the fourth temperature T4 and not more than the third temperature T3 (YES in step S205), the control device 30 sets the electric energy of the heater 11 to "medium" (step S206). ), Return to the process of step S203. On the other hand, when it is determined that the outside air temperature is higher than the third temperature T3 (NO in step S205), the control device 30 proceeds to the process of step S207.
  • step S207 the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than the third temperature T3 and not more than the second temperature T2 set in advance.
  • the second temperature T2 is a temperature obtained by adding a predetermined allowable value to a temperature at which liquid refrigerant is not likely to be accumulated in the outdoor heat exchanger 5, and the second temperature T2> the first temperature T1. It is. Moreover, it is 2nd temperature T2> 3rd temperature T3.
  • step S207 If the controller 30 determines that the outside air temperature is higher than the third temperature T3 and not more than the second temperature T2 (YES in step S207), the controller 30 sets the electric energy of the heater 11 to "weak" (step S208). ), Return to the process of step S203. On the other hand, when it is determined that the outside air temperature is higher than the second temperature T2 (NO in step S207), the control device 30 turns off the heater 11 (step S209) and returns to the process of step S201.
  • control apparatus 30 of the outdoor unit 100 of the air conditioner concerning this Embodiment 2 changes the electric energy of the heater 11 according to external temperature, when the heater 11 is ON.
  • the amount of power of the heater 11 is changed according to the outside air temperature, so the amount of heating of the outdoor heat exchanger 5 is adjusted according to the outside air temperature. can do.
  • the outdoor heat exchanger 5 can be efficiently heated by the heater 11 by increasing the heating amount of the outdoor heat exchanger 5.
  • the amount of heat generated by the heater 11 can be reduced by reducing the heating amount of the outdoor heat exchanger 5, and power consumption can be reduced.
  • FIG. 9 is a plan view showing an internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 3 of the present invention.
  • the outdoor unit of the conventional air conditioner when the operation is stopped when the outside air is low, the temperature of the compressor is lowered during the operation stop, and the liquid refrigerant is accumulated in the compressor. As a result, the refrigerant and the refrigerator oil are mixed and diluted in the compressor, and the oil concentration of the compressor becomes thin. Therefore, as shown in FIG. 9, in the third embodiment, in addition to the heater 11A provided on the surface of the separator 10 on the side of the fan chamber 10A, the surface of the separator 10 on the side of the machine chamber 10B is A heater 11B configured of a heater or the like is provided.
  • the heater 11B is provided on the surface of the separator 10 from the position near the upper end of the compressor 2 to the position near the lower end in order to facilitate the heat transfer to the entire vertical direction of the compressor 2. Further, the heater 11B is provided on the surface of the separator 10 from the position near the front end of the compressor 2 to the position near the rear end on the surface of the separator 10 in order to facilitate heat transfer to the entire longitudinal direction of the compressor 2. Further, the heater 11 B is bent and fixed to the separator 10 so as to avoid the uneven portion 12 formed on the separator 10.
  • the heater 11B is also provided on the surface of the separator 10 on the machine chamber 10B side.
  • the accumulation of liquid refrigerant in the compressor 2 can be suppressed, so that the occurrence of problems such as burning can be suppressed more efficiently. it can.
  • FIG. 10 is a perspective view showing an internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 4 of the present invention.
  • the back surface of the side panel 52 is provided with a heat reflection plate 21 (shown by a broken line) made of, for example, a material having a high heat reflectance such as iron.
  • the heat reflection plate 21 may be provided not on the back surface of the side panel 52 but on the back surface of the front panel 51, or the heat reflection plate 21 may be provided on the back surface of the front panel 51 and the back surface of the side panel 52.
  • one provided with the heat reflecting plate 21 on the back surface may be made of a material other than the heat reflecting material.
  • the heat reflecting plate 21 is provided at least on the back surface of the front panel 51 or the back surface of the side panel 52.
  • the heat reflecting plate 21 is provided at least on the back surface of the front panel 51 or the back surface of the side panel 52. Therefore, even if the front panel 51 and the side panel 52 are not made of heat reflecting material, heat reflection can be used, and the effect of warming the outdoor heat exchanger 5 by the heater 11 can be enhanced. That is, since the entire outdoor heat exchanger 5 can be efficiently heated by the heater 11, the amount of heat generated by the heater 11 can be reduced, and power consumption can be reduced.
  • SYMBOLS 1 case, 2 compressor, 3 electric goods box, 4 air blower, 5 outdoor heat exchanger, 10 separator, 10 A fan room, 10 B machine room, 11 heater, 11 A heater, 11 B heater, 12 uneven part, 20 air temperature Detection device, 21 heat reflection plate, 30 control device, 31 main control unit, 32 drive unit, 33 storage unit, 51 front panel, 52 side panel, 100 outdoor unit.

Abstract

This outdoor unit of an air conditioner is provided with: a housing that constitutes an outer shell; a separator partitioning the inside of the housing into an air blower chamber and a machine chamber; an outdoor heat exchanger, which is disposed in the air blower chamber, and which performs heat exchange between air and a refrigerant; an air blower, which is disposed in the air blower chamber, and which sends air to the outdoor heat exchanger; a compressor, which is disposed in the machine chamber, and which compresses the refrigerant; and a heater, which is provided on the surface of the separator, said surface being on the air blower chamber side.

Description

空気調和機の室外機Outdoor unit of air conditioner
　本発明は、送風機室と機械室とを仕切るセパレータを有する空気調和機の室外機に関するものである。 The present invention relates to an outdoor unit of an air conditioner having a separator that separates a blower chamber and a machine chamber.
　従来の空気調和機の室外機において、低外気時に運転を停止させると、運転停止中に室外熱交換器の温度が下がり、室外熱交換器への液冷媒の溜まり込みが発生してしまう。その結果、暖房起動時に圧縮機に冷媒が液の状態で吸入され、圧縮機内で冷媒と冷凍機油とが混ざり希釈されてしまい、圧縮機の油濃度が薄くなってしまう。そして、圧縮機の油濃度が薄い状態で長時間運転を続けると、モータ軸などが潤滑不十分で焼き付けなどの不具合を発生させてしまう可能性がある。そこで、室外熱交換器を温める機構を備えた空気調和機の室外機が提案されている（例えば、特許文献１参照）。 In the outdoor unit of the conventional air conditioner, when the operation is stopped when the outside air is low, the temperature of the outdoor heat exchanger drops during the operation stop, and the liquid refrigerant stagnates in the outdoor heat exchanger. As a result, the refrigerant is sucked in a liquid state to the compressor at the start of heating, and the refrigerant and the refrigerator oil are mixed and diluted in the compressor, and the oil concentration of the compressor becomes thin. Then, if the operation is continued for a long time in a state where the oil concentration of the compressor is low, there is a possibility that the motor shaft or the like is insufficiently lubricated to cause problems such as burning. Then, the outdoor unit of the air conditioner provided with the mechanism which warms an outdoor heat exchanger is proposed (for example, refer patent document 1).
　特許文献１の空気調和機の室外機は、送風機による空気の流れの送風機の上流側かつ室外熱交換器の下流側に、室外熱交換器からほぼ一定の距離を隔てて配置されたヒーターを備え、そのヒーターの輻射熱によって室外熱交換器を温めている。 The outdoor unit of the air conditioner of Patent Document 1 includes a heater disposed on the upstream side of the air flow by the air blower and on the downstream side of the outdoor heat exchanger at a substantially constant distance from the outdoor heat exchanger. The radiant heat from the heater warms the outdoor heat exchanger.
特開２０１１－２５２６４２号公報JP, 2011-252642, A
　特許文献１の空気調和機の室外機は、ヒーターが送風機による空気の流れの送風機の上流側かつ室外熱交換器の下流側に配置されている。そのため、送風機から室外熱交換器へと向かう風の一部を遮ってしまい、風量の低下によって熱交換効率が低下してしまうという課題があった。また、ヒーターを、送風機による空気の流れの送風機の上流側かつ室外熱交換器の下流側に、室外熱交換器からほぼ一定の距離を隔てて配置する必要があり、組み立て作業性が悪いという課題があった。 In the outdoor unit of the air conditioner of Patent Document 1, the heater is disposed on the upstream side of the blower of the flow of air by the blower and on the downstream side of the outdoor heat exchanger. Therefore, a part of the wind which goes to a outdoor heat exchanger from a fan is intercepted, and the subject that the heat exchange efficiency will fall by the fall of the amount of winds occurred. In addition, the heater needs to be disposed on the upstream side of the blower of the air flow by the blower and on the downstream side of the outdoor heat exchanger at a substantially constant distance from the outdoor heat exchanger. was there.
　本発明は、以上のような課題を解決するためになされたもので、熱交換効率の低下を抑制し、組み立て作業性を改善しつつ、室外熱交換器への液冷媒の溜まり込みを抑制することができる空気調和機の室外機を提供することを目的としている。 The present invention has been made to solve the above-described problems, and suppresses the decrease in heat exchange efficiency, improves assembly workability, and suppresses the accumulation of liquid refrigerant in the outdoor heat exchanger. It is an object of the present invention to provide an outdoor unit of an air conditioner capable of
　本発明に係る空気調和機の室外機は、外郭を構成する筐体と、前記筐体内を送風機室と機械室とに仕切るセパレータと、前記送風機室に設置され、空気と冷媒との間で熱交換を行う室外熱交換器と、前記送風機室に設置され、前記室外熱交換器に送風を行う送風機と、前記機械室に設置され、冷媒を圧縮する圧縮機と、前記セパレータの前記送風機室側の面に設けられたヒーターと、を備えたものである。 An outdoor unit of an air conditioner according to the present invention is provided in a casing forming an outer shell, a separator that divides the inside of the casing into a blower chamber and a machine chamber, and is installed in the blower chamber and heats between air and refrigerant. An outdoor heat exchanger that performs replacement, a blower that is installed in the blower chamber and that blows air to the outdoor heat exchanger, a compressor that is installed in the machine chamber, that compresses a refrigerant, and the blower chamber side of the separator And a heater provided on the surface of the
　本発明に係る空気調和機の室外機によれば、セパレータの送風機室側の面にヒーターが設けられているため、組み立て作業性を改善することができる。また、ヒーターによって送風機から室外熱交換器へと向かう風が遮られることがないため、熱交換効率の低下を抑制することができる。そして、ヒーターによって室外熱交換器を温めることで、室外熱交換器への液冷媒の溜まり込みを抑制することができる。つまり、熱交換効率の低下を抑制し、組み立て作業性を改善しつつ、室外熱交換器への液冷媒の溜まり込みを抑制することができる。 According to the outdoor unit of the air conditioner according to the present invention, since the heater is provided on the surface of the separator on the fan chamber side, assembling workability can be improved. In addition, since the wind from the blower to the outdoor heat exchanger is not blocked by the heater, it is possible to suppress a decrease in heat exchange efficiency. And, by warming the outdoor heat exchanger with the heater, it is possible to suppress the accumulation of liquid refrigerant in the outdoor heat exchanger. That is, it is possible to suppress the reduction of the heat exchange efficiency and to improve the assembly workability and to suppress the accumulation of the liquid refrigerant in the outdoor heat exchanger.
本発明の実施の形態１に係る空気調和機の室外機の外観を示す斜視図である。It is a perspective view which shows the external appearance of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和機の室外機の内部構成を示す第１の斜視図である。It is a 1st perspective view which shows the internal structure of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和機の室外機の内部構成を示す第２の斜視図である。It is a 2nd perspective view which shows the internal structure of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和機の室外機の内部構成を示す第３の斜視図である。It is a 3rd perspective view which shows the internal structure of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和機の室外機の内部構成を示す平面図である。It is a top view which shows the internal structure of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和機の室外機の機能ブロックである。It is a functional block of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和機の室外機のヒーターの制御フローを示す図である。It is a figure which shows the control flow of the heater of the outdoor unit of the air conditioner concerning Embodiment 1 of this invention. 本発明の実施の形態２に係る空気調和機の室外機のヒーターの制御フローを示す図である。It is a figure which shows the control flow of the heater of the outdoor unit of the air conditioner concerning Embodiment 2 of this invention. 本発明の実施の形態３に係る空気調和機の室外機の内部構成を示す平面図である。It is a top view which shows the internal structure of the outdoor unit of the air conditioner concerning Embodiment 3 of this invention. 本発明の実施の形態４に係る空気調和機の室外機の内部構成を示す斜視図である。It is a perspective view which shows the internal structure of the outdoor unit of the air conditioner concerning Embodiment 4 of this invention.
　以下、本発明の実施の形態を図面に基づいて説明する。なお、以下に説明する実施の形態によって本発明が限定されるものではない。また、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。 Hereinafter, embodiments of the present invention will be described based on the drawings. The present invention is not limited by the embodiments described below. Moreover, in the following drawings, the relationship of the magnitude | size of each structural member may differ from an actual thing.
　実施の形態１．
　図１は、本発明の実施の形態１に係る空気調和機の室外機１００の外観を示す斜視図である。図２は、本発明の実施の形態１に係る空気調和機の室外機１００の内部構成を示す第１の斜視図である。図３は、本発明の実施の形態１に係る空気調和機の室外機１００の内部構成を示す第２の斜視図である。図４は、本発明の実施の形態１に係る空気調和機の室外機１００の内部構成を示す第３の斜視図である。図５は、本発明の実施の形態１に係る空気調和機の室外機１００の内部構成を示す平面図である。 Embodiment 1
FIG. 1 is a perspective view showing an appearance of an outdoor unit 100 of an air conditioner according to Embodiment 1 of the present invention. FIG. 2 is a first perspective view showing the internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention. FIG. 3 is a second perspective view showing the internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention. FIG. 4 is a third perspective view showing the internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention. FIG. 5 is a plan view showing an internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
　以下、図１～図５に基づいて、本実施の形態１に係る空気調和機の室外機１００の構成について説明する。
　なお、以下の説明において、理解を容易にするために方向を表す用語、例えば「上」、「下」、「右」、「左」、「前」、「後」など、を適宜用いるが、これは説明のためのものであって、これらの用語は本願発明を限定するものではない。また、本実施の形態１では、空気調和機の室外機１００を正面視した状態において、「上」、「下」、「右」、「左」、「前」、「後」などを使用する。 Hereinafter, the configuration of the outdoor unit 100 of the air conditioner according to the first embodiment will be described based on FIGS. 1 to 5.
In the following description, terms that indicate directions, such as “upper,” “lower,” “right,” “left,” “front,” “rear,” etc. are used as appropriate to facilitate understanding. This is for illustrative purposes, and these terms are not intended to limit the present invention. Further, in the first embodiment, “up”, “down”, “right”, “left”, “front”, “rear”, etc. are used in a state where the outdoor unit 100 of the air conditioner is viewed from the front. .
　図１に示されるように、空気調和機の室外機１００は、外郭を構成する筐体１を備えている。図２に示されるように、筐体１は、外郭の前面を構成する前面パネル５１と、外郭の左側面を構成する側面パネル５２とを備えている。この前面パネル５１および側面パネル５２は、例えば鉄などの熱反射率の高い材料である熱反射材料で構成されている。 As FIG. 1 shows, the outdoor unit 100 of an air conditioner is equipped with the housing | casing 1 which comprises an outer shell. As shown in FIG. 2, the housing 1 includes a front panel 51 forming the front of the outer shell and a side panel 52 forming the left side of the outer shell. The front panel 51 and the side panel 52 are made of, for example, a heat reflecting material which is a material having a high heat reflectance such as iron.
　また、図３および図４に示されるように、空気調和機の室外機１００は、筐体１内を送風機室１０Ａと機械室１０Ｂとに仕切るセパレータ１０を備えている。送風機室１０Ａには、空気と冷媒との間で熱交換を行う室外熱交換器５と、室外熱交換器５に送風を行う送風機４と、が設置されている。また、機械室１０Ｂには、冷媒を圧縮する圧縮機２と、各種電気品を収容する電気品箱３と、が設置されている。 Moreover, as FIG. 3 and FIG. 4 show, the outdoor unit 100 of an air conditioner is provided with the separator 10 which divides the inside of the housing | casing 1 into 10 A of fan rooms, and the machine room 10B. In the fan room 10A, an outdoor heat exchanger 5 for exchanging heat between air and a refrigerant, and a fan 4 for blowing air to the outdoor heat exchanger 5 are installed. Further, in the machine room 10B, a compressor 2 for compressing a refrigerant and an electric item box 3 for containing various electric items are installed.
　なお、本実施の形態１では、送風機４が上下方向に２つ設けられているが、それに限定されず、少なくとも１つ設けられていればよい。 In addition, in this Embodiment 1, although two air blowers 4 are provided in the up-down direction, it is not limited to it, What is necessary is just to be provided at least one.
　また、筐体１内には、外気温度を検出する外気温度検出装置２０が設けられている。外気温度検出装置２０は、例えば、サーミスタで構成されている。 Further, an outside air temperature detection device 20 for detecting the outside air temperature is provided in the housing 1. The outside air temperature detection device 20 is configured by, for example, a thermistor.
　図３～図５に示されるように、セパレータ１０の送風機室１０Ａ側の側面には、例えばシーズヒーターなどで構成されたヒーター１１が設けられている。ヒーター１１は、室外熱交換器５の上下方向全体に熱を伝えやすくするため、セパレータ１０の上端近傍から下端近傍にわたって設けられている。また、ヒーター１１は、室外熱交換器５の前後方向全体に熱を伝えやすくするため、セパレータ１０の前端近傍から後端近傍にわたって設けられている。また、ヒーター１１は、セパレータ１０上に形成されている凹凸加工部分１２を避けるように屈曲してセパレータ１０に固定されている。 As shown in FIGS. 3 to 5, on the side surface of the separator 10 on the side of the fan chamber 10A, a heater 11 constituted of, for example, a sheathed heater is provided. The heater 11 is provided from the vicinity of the upper end to the vicinity of the lower end of the separator 10 in order to easily transfer heat to the whole of the outdoor heat exchanger 5 in the vertical direction. Further, the heater 11 is provided from the vicinity of the front end of the separator 10 to the vicinity of the rear end so as to easily transfer heat to the entire outdoor heat exchanger 5 in the front-rear direction. In addition, the heater 11 is bent and fixed to the separator 10 so as to avoid the uneven portion 12 formed on the separator 10.
　図６は、本発明の実施の形態１に係る空気調和機の室外機１００の機能ブロックである。
　本実施の形態１に係る空気調和機の室外機１００は、電気品箱３に制御装置３０が設けられている。制御装置３０は、図６に示されるように、メイン制御部３１と、記憶部３２と、駆動部３３と、を備えている。 FIG. 6 is a functional block of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
In the outdoor unit 100 of the air conditioner according to the first embodiment, a control device 30 is provided in the electrical item box 3. The control apparatus 30 is provided with the main control part 31, the memory | storage part 32, and the drive part 33, as FIG. 6 shows.
　メイン制御部３１は、外気温度検出装置２０の検出値、および、リモコン（図示せず）などからの指示に基づいて、圧縮機２の運転周波数、送風機４の回転数（ＯＮ／ＯＦＦ含む）、および、ヒーター１１の電力量（ＯＮ／ＯＦＦ含む）の制御を、駆動部３３に指示するものである。 The main control unit 31 operates the operating frequency of the compressor 2 and the number of rotations of the blower 4 (including ON / OFF) based on the detection value of the outside air temperature detection device 20 and an instruction from a remote control (not shown). And, the control of the electric energy (including ON / OFF) of the heater 11 is instructed to the drive unit 33.
　記憶部３２は、後述する第１温度Ｔ１、第２温度Ｔ２などの各種情報を記憶するものである。 The storage unit 32 stores various information such as a first temperature T1 and a second temperature T2 described later.
　駆動部３３は、メイン制御部３１からの指示に基づいて、圧縮機２の運転周波数、送風機４の回転数（ＯＮ／ＯＦＦ含む）、および、ヒーター１１の電力量（ＯＮ／ＯＦＦ含む）を制御するものである。 The drive unit 33 controls the operating frequency of the compressor 2, the number of rotations of the blower 4 (including ON / OFF), and the amount of power of the heater 11 (including ON / OFF) based on an instruction from the main control unit 31. It is
　なお、本実施の形態では、制御装置３０が記憶部３２を備えている構成としたが、それに限定されず、記憶部３２を制御装置３０とは別体として設けられている構成としてもよい。 In the present embodiment, the control device 30 includes the storage unit 32. However, the present invention is not limited to this, and the storage unit 32 may be provided separately from the control device 30.
　図７は、本発明の実施の形態１に係る空気調和機の室外機１００のヒーター１１の制御フローを示す図である。
　以下、本実施の形態１に係る空気調和機の室外機１００のヒーター１１の制御処理について、図７を用いて説明する。 FIG. 7 is a diagram showing a control flow of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
Hereinafter, control processing of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 1 will be described with reference to FIG. 7.
　制御装置３０は、外気温度検出装置２０が検出した外気温度が、あらかじめ設定された第１温度Ｔ１より高いかどうかを判定する（ステップＳ１０１）。ここで、第１温度Ｔ１は、室外熱交換器５への液冷媒の溜まり込みが発生する可能性のある温度である。 Control device 30 determines whether the outside air temperature detected by outside air temperature detection device 20 is higher than a first temperature T1 set in advance (step S101). Here, the first temperature T1 is a temperature at which the accumulation of the liquid refrigerant in the outdoor heat exchanger 5 may occur.
　制御装置３０は、外気温度が第１温度Ｔ１より高いと判定した場合（ステップＳ１０１のＹＥＳ）、再度ステップＳ１０１の処理を行う。一方、制御装置３０は、外気温度が第１温度Ｔ１以下であると判定した場合（ステップＳ１０１のＮＯ）、ヒーター１１をＯＮする（ステップＳ１０２）。 When it is determined that the outside air temperature is higher than the first temperature T1 (YES in step S101), the control device 30 performs the process of step S101 again. On the other hand, when it is determined that the outside air temperature is equal to or lower than the first temperature T1 (NO in step S101), the control device 30 turns on the heater 11 (step S102).
　ステップＳ１０２の後、制御装置３０は、外気温度検出装置２０が検出した外気温度が、あらかじめ設定された第２温度Ｔ２より高いかどうかを判定する（ステップＳ１０３）。ここで、第２温度Ｔ２は、室外熱交換器５への液冷媒の溜まり込みが発生する可能性のない温度に所定の許容値を加えた温度であり、第２温度Ｔ２＞第１温度Ｔ１である。 After step S102, the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than a second temperature T2 set in advance (step S103). Here, the second temperature T2 is a temperature obtained by adding a predetermined allowable value to a temperature at which liquid refrigerant is not likely to be accumulated in the outdoor heat exchanger 5, and the second temperature T2> the first temperature T1. It is.
　制御装置３０は、外気温度が第２温度Ｔ２より高いと判定した場合（ステップＳ１０３のＹＥＳ）、ヒーター１１をＯＦＦし（ステップＳ１０４）、ステップＳ１０１の処理に戻る。一方、制御装置３０は、外気温度が第２温度Ｔ２以下であると判定した場合（ステップＳ１０３のＮＯ）、再度ステップＳ１０３の処理を行う。 When determining that the outside air temperature is higher than the second temperature T2 (YES in step S103), the control device 30 turns off the heater 11 (step S104), and returns to the process of step S101. On the other hand, when the control device 30 determines that the outside air temperature is equal to or lower than the second temperature T2 (NO in step S103), the control device 30 performs the process of step S103 again.
　なお、本実施の形態１では、制御装置３０は、圧縮機２の運転の有無にかかわらず、外気温度が第１温度Ｔ１より高いかどうかを判定しているが、それに限定されない。圧縮機２の運転中において、外気温度が第１温度Ｔ１以下とならないような場合には、制御装置３０が、圧縮機２の運転が停止しているかどうかを判定する。そして、圧縮機２の運転が停止していると判定したら、外気温度が第１温度Ｔ１より高いかどうかを判定する構成としてもよい。 Although the control device 30 determines whether the outside air temperature is higher than the first temperature T1 regardless of the operation of the compressor 2 in the first embodiment, the present invention is not limited thereto. If the outside air temperature does not fall below the first temperature T1 during the operation of the compressor 2, the control device 30 determines whether the operation of the compressor 2 is stopped. Then, if it is determined that the operation of the compressor 2 is stopped, it may be determined whether the outside air temperature is higher than the first temperature T1.
　以上、本実施の形態１に係る空気調和機の室外機１００は、外郭を構成する筐体１と、筐体１内を送風機室１０Ａと機械室１０Ｂとに仕切るセパレータ１０と、を備えている。また、送風機室１０Ａに設置され、空気と冷媒との間で熱交換を行う室外熱交換器５と、送風機室１０Ａに設置され、室外熱交換器５に送風を行う送風機４と、を備えている。また、機械室１０Ｂに設置され、冷媒を圧縮する圧縮機２と、セパレータ１０の送風機室１０Ａ側の面に設けられたヒーター１１と、を備えている。 As described above, the outdoor unit 100 of the air conditioner according to the first embodiment includes the housing 1 forming the outer shell, and the separator 10 dividing the inside of the housing 1 into the fan room 10A and the machine room 10B. . The outdoor heat exchanger 5 is installed in the fan room 10A and performs heat exchange between air and refrigerant, and the fan 4 installed in the fan room 10A and performs air blowing to the outdoor heat exchanger 5 There is. Moreover, the compressor 2 installed in the machine room 10B and compressing a refrigerant | coolant, The heater 11 provided in the surface by the side of the fan room 10A of the separator 10 is provided.
　本実施の形態１に係る空気調和機の室外機１００によれば、セパレータ１０の送風機室１０Ａ側の面にヒーター１１が設けられているため、組み立て作業性を改善することができる。また、ヒーター１１によって送風機４から室外熱交換器５へと向かう風が遮られることがないため、熱交換効率の低下を抑制することができる。そして、ヒーター１１によって室外熱交換器５を温めることで、室外熱交換器５への液冷媒の溜まり込みを抑制することができる。つまり、本実施の形態１に係る空気調和機の室外機１００は、熱交換効率の低下を抑制し、組み立て作業性を改善しつつ、室外熱交換器５への液冷媒の溜まり込みを抑制することができる。 According to the outdoor unit 100 of the air conditioner according to the first embodiment, since the heater 11 is provided on the surface of the separator 10 on the fan chamber 10A side, assembling workability can be improved. Moreover, since the wind from the blower 4 to the outdoor heat exchanger 5 is not blocked by the heater 11, a decrease in heat exchange efficiency can be suppressed. Then, by warming the outdoor heat exchanger 5 by the heater 11, accumulation of liquid refrigerant in the outdoor heat exchanger 5 can be suppressed. That is, the outdoor unit 100 of the air conditioner according to the first embodiment suppresses the decrease in heat exchange efficiency, and improves the assembly workability while suppressing the accumulation of liquid refrigerant in the outdoor heat exchanger 5 be able to.
　また、本実施の形態１に係る空気調和機の室外機１００は、外気温度を検出する外気温度検出装置２０と、ヒーター１１を制御する制御装置３０と、を備えている。そして、制御装置３０は、外気温度検出装置２０により検出した外気温度があらかじめ設定された第１温度Ｔ１以下であると判定した場合、ヒーター１１をＯＮする。また、制御装置３０は、外気温度検出装置２０により検出した外気温度があらかじめ設定された第２温度Ｔ２より高いと判定した場合、ヒーター１１をＯＦＦする。 Further, the outdoor unit 100 of the air conditioner according to the first embodiment includes the outside air temperature detection device 20 that detects the outside air temperature, and the control device 30 that controls the heater 11. Then, when it is determined that the outside air temperature detected by the outside air temperature detection device 20 is equal to or less than the first temperature T1 set in advance, the control device 30 turns on the heater 11. Further, when it is determined that the outside air temperature detected by the outside air temperature detection device 20 is higher than the second temperature T2 set in advance, the control device 30 turns off the heater 11.
　本実施の形態１に係る空気調和機の室外機１００によれば、制御装置３０は、外気温度が室外熱交換器５への液冷媒の溜まり込みが発生する可能性のある温度以下となった場合に、ヒーター１１をＯＮする。また、制御装置３０は、外気温度検出装置２０により検出した外気温度が室外熱交換器５への液冷媒の溜まり込みが発生する可能性のない温度より高くなった場合に、ヒーター１１をＯＦＦする。そうすることで、室外熱交換器５への液冷媒の溜まり込みを抑制することができるとともに、外気温度が室外熱交換器５への液冷媒の溜まり込みが発生する可能性のない温度のときはヒーター１１をＯＦＦするため、消費電力を低減させることができる。 According to the outdoor unit 100 of the air conditioner according to the first embodiment, the control device 30 has the outside air temperature equal to or less than the temperature at which the liquid refrigerant may stagnate in the outdoor heat exchanger 5. In the case, the heater 11 is turned on. Further, the control device 30 turns off the heater 11 when the outside air temperature detected by the outside air temperature detection device 20 becomes higher than a temperature at which the liquid refrigerant is not likely to be accumulated in the outdoor heat exchanger 5. . By doing so, accumulation of liquid refrigerant in the outdoor heat exchanger 5 can be suppressed, and the outside air temperature is a temperature at which there is no possibility that accumulation of liquid refrigerant in the outdoor heat exchanger 5 will occur. Since the heater 11 is turned off, the power consumption can be reduced.
　また、本実施の形態１に係る空気調和機の室外機１００の筐体１は、前面パネル５１と側面パネル５２とを備えており、前面パネル５１と側面パネル５２とは、熱反射材料で構成されている。 Moreover, the housing | casing 1 of the outdoor unit 100 of the air conditioner concerning this Embodiment 1 is equipped with the front panel 51 and the side panel 52, and the front panel 51 and the side panel 52 are comprised with heat reflective material. It is done.
　本実施の形態１に係る空気調和機の室外機１００によれば、前面パネル５１と側面パネル５２とが熱反射材料で構成されているので、熱反射も利用してヒーター１１で室外熱交換器５を温める効果を高めることができる。つまり、ヒーター１１で効率よく室外熱交換器５全体を温めることができるため、ヒーター１１で発生させる熱量を低減させることができ、消費電力を低減させることができる。 According to the outdoor unit 100 of the air conditioner according to the first embodiment, since the front panel 51 and the side panel 52 are formed of heat reflecting material, the outdoor heat exchanger can be made of the heater 11 also using heat reflection. The effect of warming 5 can be enhanced. That is, since the entire outdoor heat exchanger 5 can be efficiently heated by the heater 11, the amount of heat generated by the heater 11 can be reduced, and power consumption can be reduced.
　実施の形態２．
　以下、本発明の実施の形態２について説明するが、実施の形態１と重複するものについては説明を省略し、実施の形態１と同じ部分または相当する部分には同じ符号を付す。 Second Embodiment
The second embodiment of the present invention will be described below, but the description of the same parts as those in the first embodiment will be omitted, and the same or corresponding parts as in the first embodiment will be assigned the same reference numerals.
　実施の形態１に係る空気調和機の室外機１００では、外気温度に応じてヒーター１１のＯＮ／ＯＦＦのみを行っていたが、本実施の形態２に係る空気調和機の室外機１００では、外気温度に応じてヒーター１１のＯＮ／ＯＦＦのみならず、電力量の変更も行う。 In the outdoor unit 100 of the air conditioner according to the first embodiment, only the ON / OFF of the heater 11 is performed according to the outside air temperature, but in the outdoor unit 100 of the air conditioner according to the second embodiment, the outdoor air Not only the ON / OFF of the heater 11 but also the change of electric energy is performed according to the temperature.
　図８は、本発明の実施の形態２に係る空気調和機の室外機１００のヒーター１１の制御フローを示す図である。
　以下、本実施の形態２に係る空気調和機の室外機１００のヒーター１１の制御処理について、図８を用いて説明する。なお、以下では、ヒーター１１の電力量を、一番大きい「強」、一番小さい「弱」、それらの間の「中」の三段階で制御する例について説明するが、それに限定されず、二段階でもよいし、四段階以上でもよい。 FIG. 8 is a diagram showing a control flow of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 2 of the present invention.
Hereinafter, control processing of the heater 11 of the outdoor unit 100 of the air conditioner according to Embodiment 2 will be described with reference to FIG. In addition, although the example which controls the electric energy of the heater 11 in three steps of largest "strong", the smallest "weak", and "middle" among them is demonstrated below, it is not limited to it, There may be two stages, or four or more stages.
　制御装置３０は、外気温度検出装置２０が検出した外気温度が、あらかじめ設定された第１温度Ｔ１より高いかどうかを判定する（ステップＳ２０１）。ここで、第１温度Ｔ１は、室外熱交換器５への液冷媒の溜まり込みが発生する可能性のある温度である。 The control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than a preset first temperature T1 (step S201). Here, the first temperature T1 is a temperature at which the accumulation of the liquid refrigerant in the outdoor heat exchanger 5 may occur.
　制御装置３０は、外気温度が第１温度Ｔ１より高いと判定した場合（ステップＳ２０１のＹＥＳ）、再度ステップＳ２０１の処理を行う。一方、制御装置３０は、外気温度が第１温度Ｔ１以下であると判定した場合（ステップＳ２０１のＮＯ）、ヒーター１１をＯＮし（ステップＳ２０２）、ステップＳ２０３の処理に進む。 When it is determined that the outside air temperature is higher than the first temperature T1 (YES in step S201), the control device 30 performs the process of step S201 again. On the other hand, when determining that the outside air temperature is equal to or lower than the first temperature T1 (NO in step S201), the control device 30 turns on the heater 11 (step S202), and proceeds to the process of step S203.
　ステップＳ２０３において、制御装置３０は、外気温度検出装置２０が検出した外気温度が、あらかじめ設定された第４温度Ｔ４以下であるかどうかを判定する。 In step S203, the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is equal to or lower than a preset fourth temperature T4.
　制御装置３０は、外気温度が第４温度Ｔ４以下であると判定した場合（ステップＳ２０３のＹＥＳ）、ヒーター１１の電力量を「強」に設定し（ステップＳ２０４）、ステップＳ２０３の処理に戻る。一方、制御装置３０は、外気温度が第４温度Ｔ４より高いと判定した場合（ステップＳ２０３のＮＯ）、ステップＳ２０５の処理に進む。 When determining that the outside air temperature is equal to or lower than the fourth temperature T4 (YES in step S203), the control device 30 sets the power amount of the heater 11 to "strong" (step S204), and returns to the process of step S203. On the other hand, when it is determined that the outside air temperature is higher than the fourth temperature T4 (NO in step S203), the control device 30 proceeds to the process of step S205.
　ステップＳ２０５において、制御装置３０は、外気温度検出装置２０が検出した外気温度が、第４温度Ｔ４より高く、かつ、あらかじめ設定された第３温度Ｔ３以下であるかどうかを判定する。なお、第３温度Ｔ３＞第４温度Ｔ４である。 In step S205, the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than the fourth temperature T4 and is equal to or less than a preset third temperature T3. Note that third temperature T3> fourth temperature T4.
　制御装置３０は、外気温度が第４温度Ｔ４より高く、かつ、第３温度Ｔ３以下であると判定した場合（ステップＳ２０５のＹＥＳ）、ヒーター１１の電力量を「中」に設定し（ステップＳ２０６）、ステップＳ２０３の処理に戻る。一方、制御装置３０は、外気温度が第３温度Ｔ３より高いと判定した場合（ステップＳ２０５のＮＯ）、ステップＳ２０７の処理に進む。 When determining that the outside air temperature is higher than the fourth temperature T4 and not more than the third temperature T3 (YES in step S205), the control device 30 sets the electric energy of the heater 11 to "medium" (step S206). ), Return to the process of step S203. On the other hand, when it is determined that the outside air temperature is higher than the third temperature T3 (NO in step S205), the control device 30 proceeds to the process of step S207.
　ステップＳ２０７において、制御装置３０は、外気温度検出装置２０が検出した外気温度が、第３温度Ｔ３より高く、かつ、あらかじめ設定された第２温度Ｔ２以下であるかどうかを判定する。ここで、第２温度Ｔ２は、室外熱交換器５への液冷媒の溜まり込みが発生する可能性のない温度に所定の許容値を加えた温度であり、第２温度Ｔ２＞第１温度Ｔ１である。また、第２温度Ｔ２＞第３温度Ｔ３である。 In step S207, the control device 30 determines whether the outside air temperature detected by the outside air temperature detection device 20 is higher than the third temperature T3 and not more than the second temperature T2 set in advance. Here, the second temperature T2 is a temperature obtained by adding a predetermined allowable value to a temperature at which liquid refrigerant is not likely to be accumulated in the outdoor heat exchanger 5, and the second temperature T2> the first temperature T1. It is. Moreover, it is 2nd temperature T2> 3rd temperature T3.
　制御装置３０は、外気温度が第３温度Ｔ３より高く、かつ、第２温度Ｔ２以下であると判定した場合（ステップＳ２０７のＹＥＳ）、ヒーター１１の電力量を「弱」に設定し（ステップＳ２０８）、ステップＳ２０３の処理に戻る。一方、制御装置３０は、外気温度が第２温度Ｔ２より高いと判定した場合（ステップＳ２０７のＮＯ）、ヒーター１１をＯＦＦし（ステップＳ２０９）、ステップＳ２０１の処理に戻る。 If the controller 30 determines that the outside air temperature is higher than the third temperature T3 and not more than the second temperature T2 (YES in step S207), the controller 30 sets the electric energy of the heater 11 to "weak" (step S208). ), Return to the process of step S203. On the other hand, when it is determined that the outside air temperature is higher than the second temperature T2 (NO in step S207), the control device 30 turns off the heater 11 (step S209) and returns to the process of step S201.
　以上、本実施の形態２に係る空気調和機の室外機１００の制御装置３０は、ヒーター１１がＯＮ時、外気温度に応じて、ヒーター１１の電力量を変更する。 As mentioned above, the control apparatus 30 of the outdoor unit 100 of the air conditioner concerning this Embodiment 2 changes the electric energy of the heater 11 according to external temperature, when the heater 11 is ON.
　本実施の形態２に係る空気調機の室外機１００によれば、外気温度に応じて、ヒーター１１の電力量を変更するため、外気温度に応じて、室外熱交換器５の加熱量を調整することができる。その結果、外気温度が低い場合は室外熱交換器５の加熱量を大きくすることで、ヒーター１１で効率よく室外熱交換器５を温めることができる。また、外気温度が高い場合は室外熱交換器５の加熱量を小さくすることで、ヒーター１１で発生させる熱量を低減させることができ、消費電力を低減させることができる。 According to the outdoor unit 100 of the air conditioner according to the second embodiment, the amount of power of the heater 11 is changed according to the outside air temperature, so the amount of heating of the outdoor heat exchanger 5 is adjusted according to the outside air temperature. can do. As a result, when the outside air temperature is low, the outdoor heat exchanger 5 can be efficiently heated by the heater 11 by increasing the heating amount of the outdoor heat exchanger 5. When the outside air temperature is high, the amount of heat generated by the heater 11 can be reduced by reducing the heating amount of the outdoor heat exchanger 5, and power consumption can be reduced.
　実施の形態３．
　以下、本発明の実施の形態３について説明するが、実施の形態１および２と重複するものについては説明を省略し、実施の形態１および２と同じ部分または相当する部分には同じ符号を付す。 Third Embodiment
The third embodiment of the present invention will be described below, but the descriptions of the same parts as in the first and second embodiments will be omitted, and the same or corresponding parts as in the first and second embodiments will be denoted by the same reference numerals. .
　図９は、本発明の実施の形態３に係る空気調和機の室外機１００の内部構成を示す平面図である。
　従来の空気調和機の室外機において、低外気時に運転を停止させると、運転停止中に圧縮機の温度が下がり、圧縮機への液冷媒の溜まり込みが発生してしまう。その結果、圧縮機内で冷媒と冷凍機油とが混ざり希釈されてしまい、圧縮機の油濃度が薄くなってしまう。そこで、図９に示されるように、本実施の形態３では、セパレータ１０の送風機室１０Ａ側の面に設けられているヒーター１１Ａに加え、セパレータ１０の機械室１０Ｂ側の面にも、例えばシーズヒーターなどで構成されたヒーター１１Ｂが設けられている。 FIG. 9 is a plan view showing an internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 3 of the present invention.
In the outdoor unit of the conventional air conditioner, when the operation is stopped when the outside air is low, the temperature of the compressor is lowered during the operation stop, and the liquid refrigerant is accumulated in the compressor. As a result, the refrigerant and the refrigerator oil are mixed and diluted in the compressor, and the oil concentration of the compressor becomes thin. Therefore, as shown in FIG. 9, in the third embodiment, in addition to the heater 11A provided on the surface of the separator 10 on the side of the fan chamber 10A, the surface of the separator 10 on the side of the machine chamber 10B is A heater 11B configured of a heater or the like is provided.
　ヒーター１１Ｂは、圧縮機２の上下方向全体に熱を伝えやすくするため、セパレータ１０の面上に、圧縮機２の上端近傍の位置から下端近傍の位置にわたって設けられている。また、ヒーター１１Ｂは、圧縮機２の前後方向全体に熱を伝えやすくするため、セパレータ１０面上に、圧縮機２の前端近傍の位置から後端近傍の位置にわたって設けられている。また、ヒーター１１Ｂは、セパレータ１０上に形成されている凹凸加工部分１２を避けるように屈曲してセパレータ１０に固定されている。 The heater 11B is provided on the surface of the separator 10 from the position near the upper end of the compressor 2 to the position near the lower end in order to facilitate the heat transfer to the entire vertical direction of the compressor 2. Further, the heater 11B is provided on the surface of the separator 10 from the position near the front end of the compressor 2 to the position near the rear end on the surface of the separator 10 in order to facilitate heat transfer to the entire longitudinal direction of the compressor 2. Further, the heater 11 B is bent and fixed to the separator 10 so as to avoid the uneven portion 12 formed on the separator 10.
　以上、本実施の形態３に係る空気調和機の室外機１００は、ヒーター１１Ｂが、セパレータ１０の機械室１０Ｂ側の面にも設けられている。 As described above, in the outdoor unit 100 of the air conditioner according to the third embodiment, the heater 11B is also provided on the surface of the separator 10 on the machine chamber 10B side.
　本実施の形態３に係る空気調和機の室外機１００によれば、圧縮機２への液冷媒の溜まり込みを抑制することができるため、焼き付けなどの不具合の発生をさらに効率よく抑制することができる。 According to the outdoor unit 100 of the air conditioner according to the third embodiment, the accumulation of liquid refrigerant in the compressor 2 can be suppressed, so that the occurrence of problems such as burning can be suppressed more efficiently. it can.
　実施の形態４．
　以下、本発明の実施の形態４について説明するが、実施の形態１～３と重複するものについては説明を省略し、実施の形態１～３と同じ部分または相当する部分には同じ符号を付す。 Fourth Embodiment
The fourth embodiment of the present invention will be described below, but the descriptions of the same parts as in the first to third embodiments will be omitted, and the same or corresponding parts as in the first to third embodiments will be assigned the same reference numerals. .
　図１０は、本発明の実施の形態４に係る空気調和機の室外機１００の内部構成を示す斜視図である。
　図１０に示されるように、本実施の形態４では、側面パネル５２の裏面に、例えば鉄などの熱反射率の高い材料で構成された熱反射板２１（破線で図示）が設けられている。なお、側面パネル５２の裏面ではなく、前面パネル５１の裏面に熱反射板２１を設けてもよいし、前面パネル５１の裏面および側面パネル５２の裏面それぞれに熱反射板２１を設けてもよい。 FIG. 10 is a perspective view showing an internal configuration of the outdoor unit 100 of the air conditioner according to Embodiment 4 of the present invention.
As shown in FIG. 10, in the fourth embodiment, the back surface of the side panel 52 is provided with a heat reflection plate 21 (shown by a broken line) made of, for example, a material having a high heat reflectance such as iron. . The heat reflection plate 21 may be provided not on the back surface of the side panel 52 but on the back surface of the front panel 51, or the heat reflection plate 21 may be provided on the back surface of the front panel 51 and the back surface of the side panel 52.
　また、前面パネル５１および側面パネル５２のうち、裏面に熱反射板２１が設けられている方を、熱反射材料以外の材料で構成してもよい。 Further, of the front panel 51 and the side panel 52, one provided with the heat reflecting plate 21 on the back surface may be made of a material other than the heat reflecting material.
　以上、本実施の形態４に係る空気調和機の室外機１００は、少なくとも前面パネル５１の裏面または側面パネル５２の裏面に、熱反射板２１が設けられている。 As described above, in the outdoor unit 100 of the air conditioner according to the fourth embodiment, the heat reflecting plate 21 is provided at least on the back surface of the front panel 51 or the back surface of the side panel 52.
　本実施の形態４に係る空気調和機の室外機１００によれば、少なくとも前面パネル５１の裏面または側面パネル５２の裏面に、熱反射板２１が設けられている。そのため、前面パネル５１および側面パネル５２を熱反射材料で構成しなくても熱反射を利用することができ、ヒーター１１で室外熱交換器５を温める効果を高めることができる。つまり、ヒーター１１で効率よく室外熱交換器５全体を温めることができるため、ヒーター１１で発生させる熱量を低減させることができ、消費電力を低減させることができる。 According to the outdoor unit 100 of the air conditioner according to the fourth embodiment, the heat reflecting plate 21 is provided at least on the back surface of the front panel 51 or the back surface of the side panel 52. Therefore, even if the front panel 51 and the side panel 52 are not made of heat reflecting material, heat reflection can be used, and the effect of warming the outdoor heat exchanger 5 by the heater 11 can be enhanced. That is, since the entire outdoor heat exchanger 5 can be efficiently heated by the heater 11, the amount of heat generated by the heater 11 can be reduced, and power consumption can be reduced.
　１　筐体、２　圧縮機、３　電気品箱、４　送風機、５　室外熱交換器、１０　セパレータ、１０Ａ　送風機室、１０Ｂ　機械室、１１　ヒーター、１１Ａ　ヒーター、１１Ｂ　ヒーター、１２　凹凸加工部分、２０　外気温度検出装置、２１　熱反射板、３０　制御装置、３１　メイン制御部、３２　駆動部、３３　記憶部、５１　前面パネル、５２　側面パネル、１００　室外機。 DESCRIPTION OF SYMBOLS 1 case, 2 compressor, 3 electric goods box, 4 air blower, 5 outdoor heat exchanger, 10 separator, 10 A fan room, 10 B machine room, 11 heater, 11 A heater, 11 B heater, 12 uneven part, 20 air temperature Detection device, 21 heat reflection plate, 30 control device, 31 main control unit, 32 drive unit, 33 storage unit, 51 front panel, 52 side panel, 100 outdoor unit.

Claims (8)

  1. 　外郭を構成する筐体と、
    　前記筐体内を送風機室と機械室とに仕切るセパレータと、
    　前記送風機室に設置され、空気と冷媒との間で熱交換を行う室外熱交換器と、
    　前記送風機室に設置され、前記室外熱交換器に送風を行う送風機と、
    　前記機械室に設置され、冷媒を圧縮する圧縮機と、
    　前記セパレータの前記送風機室側の面に設けられたヒーターと、を備えた
    　空気調和機の室外機。     A housing that constitutes an outer shell,
    A separator that divides the inside of the housing into a fan room and a machine room;
    An outdoor heat exchanger installed in the fan room and performing heat exchange between air and a refrigerant;
    A fan installed in the fan room and blowing air to the outdoor heat exchanger;
    A compressor installed in the machine room for compressing a refrigerant;
    An outdoor unit of an air conditioner, comprising: a heater provided on a surface of the separator on the fan chamber side.
  2. 　前記ヒーターが、前記セパレータの前記機械室側の面にも設けられている
    　請求項１に記載の空気調和機の室外機。     The outdoor unit of an air conditioner according to claim 1, wherein the heater is also provided on a surface of the separator on the machine room side.
  3. 　前記筐体は、前面パネルと側面パネルとを備えている
    　請求項１または２に記載の空気調和機の室外機。     The outdoor unit of an air conditioner according to claim 1, wherein the housing includes a front panel and a side panel.
  4. 　前記前面パネルと前記側面パネルとは、熱反射材料で構成されている
    　請求項３に記載の空気調和機の室外機。     The outdoor unit of an air conditioner according to claim 3, wherein the front panel and the side panel are made of a heat reflecting material.
  5. 　少なくとも前記前面パネルの裏面または前記側面パネルの裏面に、熱反射板が設けられている
    　請求項３または４に記載の空気調和機の室外機。     The outdoor unit of the air conditioner according to claim 3, wherein a heat reflecting plate is provided at least on a back surface of the front panel or a back surface of the side panel.
  6. 　外気温度を検出する外気温度検出装置と、
    　前記ヒーターを制御する制御装置と、を備え、
    　前記制御装置は、
    　前記外気温度検出装置により検出した外気温度があらかじめ設定された第１温度以下であると判定した場合、前記ヒーターをＯＮする
    　請求項１～５のいずれか一項に記載の空気調和機の室外機。     An outside air temperature detection device that detects the outside air temperature;
    A controller for controlling the heater;
    The controller is
    The outdoor unit of the air conditioner according to any one of claims 1 to 5, wherein the heater is turned on when it is determined that the outside air temperature detected by the outside air temperature detection device is equal to or lower than a preset first temperature. .
  7. 　前記制御装置は、
    　前記外気温度があらかじめ設定された第２温度より高いと判定した場合、前記ヒーターをＯＦＦする
    　請求項６に記載の空気調和機の室外機。     The controller is
    The outdoor unit of the air conditioner according to claim 6, wherein the heater is turned off when it is determined that the outside air temperature is higher than a second temperature set in advance.
  8. 　前記制御装置は、
    　前記ヒーターがＯＮ時、
    　前記外気温度に応じて、前記ヒーターの電力量を変更する
    　請求項６または７に記載の空気調和機の室外機。     The controller is
    When the heater is on,
    The outdoor unit of the air conditioner according to claim 6, wherein an amount of power of the heater is changed according to the outside air temperature.
PCT/JP2017/033914 2017-09-20 2017-09-20 Outdoor unit of air conditioner WO2019058456A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1096537A (en) * 1996-09-24 1998-04-14 Mitsubishi Electric Corp Box member of air conditioner and manufacture thereof
JP2010032206A (en) * 2008-07-03 2010-02-12 Daikin Ind Ltd Outdoor unit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6317973Y2 (en) * 1979-11-20 1988-05-20
JPS6269034A (en) * 1985-09-24 1987-03-30 Hitachi Ltd Temperature regulator
JP6492358B2 (en) * 2014-11-26 2019-04-03 三菱重工サーマルシステムズ株式会社 Control device, air conditioner and control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1096537A (en) * 1996-09-24 1998-04-14 Mitsubishi Electric Corp Box member of air conditioner and manufacture thereof
JP2010032206A (en) * 2008-07-03 2010-02-12 Daikin Ind Ltd Outdoor unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1981.06.23 *

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