JP4209912B2 - Air conditioner - Google Patents

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JP4209912B2
JP4209912B2 JP2006330325A JP2006330325A JP4209912B2 JP 4209912 B2 JP4209912 B2 JP 4209912B2 JP 2006330325 A JP2006330325 A JP 2006330325A JP 2006330325 A JP2006330325 A JP 2006330325A JP 4209912 B2 JP4209912 B2 JP 4209912B2
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heat exchanger
temperature sensor
air conditioner
indoor
air
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JP2008144999A (en
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正直 安冨
明紀 中井
俊也 丸岡
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Daikin Industries Ltd
Panasonic Corp
Panasonic Holdings Corp
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Daikin Industries Ltd
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2006330325A priority Critical patent/JP4209912B2/en
Priority to PCT/JP2007/073396 priority patent/WO2008069201A1/en
Priority to AU2007329954A priority patent/AU2007329954B2/en
Priority to ES07850044.4T priority patent/ES2660903T3/en
Priority to EP07850044.4A priority patent/EP2098797B1/en
Publication of JP2008144999A publication Critical patent/JP2008144999A/en
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Publication of JP4209912B2 publication Critical patent/JP4209912B2/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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • 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
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/207—Casings or covers with control knobs; Mounting controlling members or control units therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Description

この発明は、空気調和機に関する。   The present invention relates to an air conditioner.

従来、空気調和機としては、熱交換器の前面側に取り付け具を用いて温度センサを取り付けたものがある(例えば、特開平９−１７８３０５号公報(特許文献１)参照)。   Conventionally, as an air conditioner, there is one in which a temperature sensor is attached to the front side of a heat exchanger using an attachment (see, for example, JP-A-9-178305 (Patent Document 1)).

この空気調和機では、運転中は風通路に温度センサが配置されるため、室内から吸い込まれた空気の温度を正しく検出することができる。しかしながら、複数の室内機を備えたマルチ型空気調和機では、１つ以上の室内機が運転中において運転停止している室内機に冷媒溜りを防ぐために冷媒を流しているので、温度センサが熱交換器の温度の影響を受けて、正しく室内温度が検出できないという問題がある。   In this air conditioner, since the temperature sensor is disposed in the wind passage during operation, the temperature of the air sucked from the room can be detected correctly. However, in the multi-type air conditioner including a plurality of indoor units, since one or more indoor units are in operation and the refrigerant is flowing to prevent the refrigerant from being accumulated in the indoor units that are stopped, the temperature sensor is heated. There is a problem that the room temperature cannot be detected correctly due to the temperature of the exchanger.

また、本体ケーシング内の熱交換器から離れた位置に温度センサを設けた空気調和機も考えられるが、限られた空間内では熱交換器に接続された連絡配管の温度の影響を温度センサが同様に受けて、正しく室内温度が検出できないという問題がある。
特開平９−１７８３０５号公報 An air conditioner with a temperature sensor provided at a position away from the heat exchanger in the main body casing is also conceivable, but in a limited space, the temperature sensor affects the influence of the temperature of the connecting pipe connected to the heat exchanger. Similarly, there is a problem that the room temperature cannot be detected correctly.
JP-A-9-178305

そこで、この発明の課題は、簡単な構成で運転停止中であっても室内温度を正確に検出できる空気調和機を提供することにある。   Accordingly, an object of the present invention is to provide an air conditioner that can accurately detect the room temperature even when the operation is stopped with a simple configuration.

上記課題を解決するため、この発明の空気調和機は、
熱交換器が収納された本体ケーシングと、
上記本体ケーシングの前面側に取り付けられ、前方に開口する開口部を有する前面グリルと、
上記本体ケーシング内に配置され、上記前面グリルの上記開口部を介して前面側から吸い込んだ空気を軸に対して半径方向外向に吹き出すターボファンと、
上記前面グリルの前面側に取り付けられた前面パネルと、
上記熱交換器と上記熱交換器に接続された連絡配管との間に取り付けられた温度センサと、
上記温度センサと上記熱交換器との間かつ上記温度センサと上記連絡配管との間を遮るカバーと
を備え、
上記前面グリルと上記前面パネルとの間に、上記ターボファンにより吸い込まれる空気が上記本体ケーシングの側方から上記前面グリルの上記開口部に向かって流入する空気通路が形成され、
上記温度センサは上記空気通路に配置されていることを特徴とする。 In order to solve the above problems, the air conditioner of the present invention is
A body casing containing a heat exchanger;
A front grille attached to the front side of the main body casing and having an opening opening forward ;
A turbofan which is disposed in the main body casing and blows air sucked from the front side through the opening of the front grille radially outward with respect to an axis;
A front panel attached to the front side of the front grill;
A temperature sensor attached between the heat exchanger and a connecting pipe connected to the heat exchanger;
A cover for blocking between the temperature sensor and the heat exchanger and between the temperature sensor and the communication pipe;
An air passage is formed between the front grille and the front panel so that air sucked by the turbofan flows from the side of the main body casing toward the opening of the front grille,
The temperature sensor is characterized in that it is arranged in the air passage.

上記構成の空気調和機によれば、上記温度センサの位置を熱交換器と連絡配管との間とし、さらにカバーによって温度センサと熱交換器との間かつ温度センサと連絡配管との間を遮ることによって、運転の有無にかかわらず熱交換器と連絡配管からの輻射熱の影響を軽減できる。また、運転中は、温度センサが配置された前面グリルと前面パネルとの間に形成された空気通路に、ターボファンにより吸い込まれる空気が本体ケーシングの側方から前面グリルの開口部に向かって流入するので、温度センサにより正確に温度検出が行われる。したがって、簡単な構成で運転停止中であっても室内温度を正確に検出できる。 According to the air conditioner having the above-described configuration, the position of the temperature sensor is between the heat exchanger and the communication pipe, and further, the cover blocks between the temperature sensor and the heat exchanger and between the temperature sensor and the communication pipe. Thus, the influence of radiant heat from the heat exchanger and the communication pipe can be reduced regardless of whether or not the operation is performed. During operation, air sucked in by the turbofan flows from the side of the main body casing toward the opening of the front grille into the air passage formed between the front grille where the temperature sensor is arranged and the front panel. since, accurately temperature detection is performed by the temperature sensor. Therefore, the room temperature can be accurately detected even when the operation is stopped with a simple configuration.

また、一実施形態の空気調和機では、上記カバーは、上記前面グリルの一部となっている。   Moreover, in the air conditioner of one embodiment, the cover is a part of the front grill.

上記実施形態によれば、上記熱交換器と連絡配管からの輻射熱の遮蔽するカバーが、前面グリルの一部となっているので、カバーの周囲の前面グリルも遮蔽に利用でき、遮蔽の効果を高めることができる。   According to the above embodiment, since the cover that shields the radiant heat from the heat exchanger and the communication pipe is a part of the front grille, the front grille around the cover can also be used for shielding, and the shielding effect can be obtained. Can be increased.

また、一実施形態の空気調和機では、上記温度センサは、上記熱交換器の前面側平面よりも前方の平面上にある。   Moreover, in the air conditioner of one Embodiment, the said temperature sensor exists on the plane ahead rather than the front side plane of the said heat exchanger.

上記実施形態によれば、上記温度センサを熱交換器の前面側平面よりも前方の平面上にすることによって、熱交換器や連絡配管から離れた位置に温度センサを配置でき、熱交換器と連絡配管からの輻射熱の影響をさらに軽減できる。   According to the said embodiment, a temperature sensor can be arrange | positioned in the position away from the heat exchanger or connecting piping by making the said temperature sensor on the plane ahead rather than the front side plane of a heat exchanger, and a heat exchanger and The influence of radiant heat from the connecting pipe can be further reduced.

以上より明らかなように、この発明の空気調和機によれば、簡単な構成で運転停止中も室内温度を正確に検出できる空気調和機を実現することができる。   As is clear from the above, according to the air conditioner of the present invention, it is possible to realize an air conditioner that can accurately detect the room temperature even when the operation is stopped with a simple configuration.

また、一実施形態の空気調和機によれば、熱交換器と連絡配管からの輻射熱の遮蔽するカバーが、前面グリルの一部となっていることによって、カバーの周囲の前面グリルも遮蔽に利用でき、遮蔽の効果を高めることができる。   Moreover, according to the air conditioner of one embodiment, since the cover that shields the radiant heat from the heat exchanger and the communication pipe is a part of the front grille, the front grille around the cover is also used for shielding. It is possible to enhance the shielding effect.

また、一実施形態の空気調和機によれば、温度センサを熱交換器の前面側平面よりも前方の平面上にすることによって、熱交換器や連絡配管から離れた位置に温度センサを配置でき、熱交換器と連絡配管からの輻射熱の影響をさらに軽減することができる。   Further, according to the air conditioner of one embodiment, the temperature sensor can be arranged at a position away from the heat exchanger and the connecting pipe by making the temperature sensor on a plane in front of the front side plane of the heat exchanger. Further, the influence of radiant heat from the heat exchanger and the connecting pipe can be further reduced.

以下、この発明の空気調和機を図示の実施の形態により詳細に説明する。   Hereinafter, the air conditioner of this invention is demonstrated in detail by embodiment of illustration.

図１はこの発明の実施の一形態の空気調和機の冷媒回路の回路図を示している。この空気調和機は、図１に示すように、圧縮機１と、上記圧縮機１の吐出側が一端に接続された四路弁２と、上記四路弁２の他端に一端が接続された室外熱交換器３と、上記室外熱交換器３の他端に一端が接続された電動膨張弁４と、上記電動膨張弁４の他端に閉鎖弁１２,連絡配管Ｌ１を介して一端が接続された室内熱交換器５と、上記室内熱交換器５の他端に閉鎖弁１３,連絡配管Ｌ２,四路弁２を介して一端が接続され、他端が圧縮機１の吸入側に接続されたアキュムレータ６とを備えている。上記圧縮機１,四路弁２,室外熱交換器３,電動膨張弁４,室内熱交換器５およびアキュムレータ６で冷媒回路を構成している。   FIG. 1 shows a circuit diagram of a refrigerant circuit of an air conditioner according to an embodiment of the present invention. As shown in FIG. 1, this air conditioner has a compressor 1, a four-way valve 2 connected to one end of the discharge side of the compressor 1, and one end connected to the other end of the four-way valve 2. The outdoor heat exchanger 3, an electric expansion valve 4 having one end connected to the other end of the outdoor heat exchanger 3, and one end connected to the other end of the electric expansion valve 4 via a closing valve 12 and a communication pipe L1 One end of the indoor heat exchanger 5 is connected to the other end of the indoor heat exchanger 5 via the closing valve 13, the connecting pipe L 2, and the four-way valve 2, and the other end is connected to the suction side of the compressor 1. The accumulator 6 is provided. The compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the electric expansion valve 4, the indoor heat exchanger 5 and the accumulator 6 constitute a refrigerant circuit.

また、この空気調和機は、室外熱交換器３近傍に配置された室外ファン７と、室内熱交換器５近傍に配置された室内ファン８と、室内温度を検出する温度センサ９と、上記温度センサ９により検出された室内温度に基づいて、圧縮機１,電動膨張弁４,室外ファン７,室内ファン８,温度センサ９等を制御する制御装置１１を備えている。   The air conditioner includes an outdoor fan 7 disposed in the vicinity of the outdoor heat exchanger 3, an indoor fan 8 disposed in the vicinity of the indoor heat exchanger 5, a temperature sensor 9 for detecting the indoor temperature, and the above temperature. A control device 11 is provided for controlling the compressor 1, the electric expansion valve 4, the outdoor fan 7, the indoor fan 8, the temperature sensor 9 and the like based on the indoor temperature detected by the sensor 9.

上記制御装置１１は、マイクロコンピュータと入出力回路などからなり、圧縮機１,四路弁２,電動膨張弁４,室外ファン７等を制御する。   The control device 11 includes a microcomputer and an input / output circuit, and controls the compressor 1, the four-way valve 2, the electric expansion valve 4, the outdoor fan 7, and the like.

上記圧縮機１,四路弁２,室外熱交換器３,電動膨張弁４,アキュムレータ６,室外ファン７および制御装置１１で室外機１０を構成し、室内熱交換器５,室内ファン８および温度センサ９で室内機２０を構成している。   The compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the electric expansion valve 4, the accumulator 6, the outdoor fan 7 and the control device 11 constitute the outdoor unit 10, and the indoor heat exchanger 5, the indoor fan 8 and the temperature. The indoor unit 20 is configured by the sensor 9.

上記構成の空気調和機において、暖房運転時、四路切換弁２を実線の切換え位置に切り換えて、圧縮機１を起動すると、圧縮機１から吐出された高圧冷媒が四路切換弁２を通って室内熱交換器５に入る。そして、上記室内熱交換器５で凝縮した冷媒は、電動膨張弁４で減圧された後に室外熱交換器３に入る。上記室外熱交換器３で蒸発した冷媒が四路切換弁２およびアキュムレータ６を介して圧縮機１の吸入側に戻る。こうして、上記圧縮機１,室内熱交換器５,電動膨張弁４,室外熱交換器３およびアキュムレータ６で構成された冷媒回路を冷媒が循環して、冷凍サイクルを実行する。そして、室内ファン８により室内熱交換器５を介して室内空気を循環させることにより室内を暖房する。   In the air conditioner having the above-described configuration, when the compressor 1 is started by switching the four-way switching valve 2 to the solid line switching position during the heating operation, the high-pressure refrigerant discharged from the compressor 1 passes through the four-way switching valve 2. And enters the indoor heat exchanger 5. Then, the refrigerant condensed in the indoor heat exchanger 5 enters the outdoor heat exchanger 3 after being decompressed by the electric expansion valve 4. The refrigerant evaporated in the outdoor heat exchanger 3 returns to the suction side of the compressor 1 through the four-way switching valve 2 and the accumulator 6. In this way, the refrigerant circulates through the refrigerant circuit constituted by the compressor 1, the indoor heat exchanger 5, the electric expansion valve 4, the outdoor heat exchanger 3, and the accumulator 6, and the refrigeration cycle is executed. Then, the indoor fan 8 heats the room by circulating the room air through the indoor heat exchanger 5.

これに対して、冷房運転時は、四路切換弁２を点線の切換え位置に切り換えて、圧縮機１,室外熱交換器３,電動膨張弁４,室内熱交換器５およびアキュムレータ６の順に冷媒が循環する冷凍サイクルを実行する。   On the other hand, at the time of cooling operation, the four-way switching valve 2 is switched to the dotted line switching position, and the refrigerant in the order of the compressor 1, the outdoor heat exchanger 3, the electric expansion valve 4, the indoor heat exchanger 5, and the accumulator 6. Execute a refrigeration cycle in which

図２は上記空気調和機の床置き型の室内機２０の斜視図を示している。この室内機２０は、図２に示すように、室内の壁面に後面側が取り付けられる本体ケーシングの一例としての略長方形状の底フレーム２１と、上記底フレーム２１の前面側に取り付けられ、前面に略長方形状の開口部２２cを有する前面グリル２２と、前面グリル２２の開口部２２cを覆うように取り付けられた前面パネル２３とを備えている。   FIG. 2 shows a perspective view of the floor-standing indoor unit 20 of the air conditioner. As shown in FIG. 2, the indoor unit 20 is attached to a substantially rectangular bottom frame 21 as an example of a main body casing whose rear side is attached to the wall surface of the room, and to the front side of the bottom frame 21, and is substantially attached to the front surface. A front grille 22 having a rectangular opening 22c and a front panel 23 attached to cover the opening 22c of the front grill 22 are provided.

上記前面グリル２２の上部に上側吹出口２２aを設けると共に、前面グリル２２の下部に下側吹出口２２bを設けている。上記前面グリル２２の上側吹出口２２aにフラップ２４を設けている。このフラップ２４は、冷房運転および暖房運転時に回動して、上側吹出口２２aから冷風,温風を前方かつ斜め上方に吹き出すようにし、停止時は、図２に示すように、上側吹出口２２aを覆う。   An upper air outlet 22 a is provided at the upper part of the front grill 22, and a lower air outlet 22 b is provided at the lower part of the front grill 22. A flap 24 is provided at the upper air outlet 22 a of the front grill 22. The flap 24 is rotated during the cooling operation and the heating operation so that cool air and warm air are blown forward and obliquely upward from the upper air outlet 22a, and when stopped, as shown in FIG. 2, the upper air outlet 22a is blown out. Cover.

また、上記前面パネル２３の上側に上側吸込口２３aを設け、前面パネル２３の下側に下側吸込口２３bを設け、さらに前面パネル２３の左右の側面に側方吸込口２３c(図２では右側のみを示す)を設けている。   Further, an upper suction port 23a is provided on the upper side of the front panel 23, a lower suction port 23b is provided on the lower side of the front panel 23, and a side suction port 23c (right side in FIG. Only shown).

また、図３は上記空気調和機の床置き型の室内機２０の前面パネル２３を外した状態の斜視図を示しており、図４に示す同一の構成部に同一の参照番号を付している。   FIG. 3 is a perspective view of the air conditioner floor-standing indoor unit 20 with the front panel 23 removed, and the same reference numerals are assigned to the same components shown in FIG. Yes.

図３に示すように、前面グリル２２と前面パネル２３との間の空気通路に、前面グリル２２の右側から前方に突出するセンサ部３１を設けている。このセンサ部３１内に温度センサ９を配置しており、正面視において室内ファン８に面していない位置にある。なお、このセンサ部３１内に温度センサ９と共に湿度センサを配置してもよい。   As shown in FIG. 3, a sensor portion 31 that protrudes forward from the right side of the front grill 22 is provided in the air passage between the front grill 22 and the front panel 23. The temperature sensor 9 is disposed in the sensor unit 31 and is in a position not facing the indoor fan 8 in a front view. A humidity sensor may be disposed in the sensor unit 31 together with the temperature sensor 9.

上記センサ部３１は、略立方体形状をしており、前面グリル２２側の底部を除く５面に複数のスリットを設けている。また、センサ部３１内の前面グリル２２側の底部に、温度センサ９を取り付けた板状の基板５１(図５に示す)を固定して、その基板により温度センサ９の背面側を遮蔽している。これにより、室内熱交換器５および連絡配管Ｌ１,Ｌ２(図５に示す)からの輻射熱を遮っている。したがって、運転停止中に温度センサ９により室内温度を正確に検出することができる。   The sensor unit 31 has a substantially cubic shape, and has a plurality of slits on five surfaces except the bottom on the front grille 22 side. A plate-like substrate 51 (shown in FIG. 5) to which the temperature sensor 9 is attached is fixed to the bottom of the front grill 22 side in the sensor unit 31, and the back side of the temperature sensor 9 is shielded by the substrate. Yes. Thereby, the radiant heat from the indoor heat exchanger 5 and the connecting pipes L1 and L2 (shown in FIG. 5) is blocked. Therefore, the indoor temperature can be accurately detected by the temperature sensor 9 during the operation stop.

ここで、運転が開始されると、前面パネル２３の右側面に側方吸込口２３cから吸い込まれた室内空気は、前面グリル２２と前面パネル２３との間の空気通路を通って前面グリル２２の開口部２２cに吸い込まれる。これにより、運転中も温度センサ９により正確に室内温度を検出することができる。   Here, when the operation is started, the indoor air sucked into the right side surface of the front panel 23 from the side suction port 23c passes through the air passage between the front grille 22 and the front panel 23 and flows through the front grille 22. It is sucked into the opening 22c. Thereby, the indoor temperature can be accurately detected by the temperature sensor 9 even during operation.

また、図４は上記空気調和機の室内機２０の断面図を示している。なお、図４において、３１はセンサ部である。   FIG. 4 shows a sectional view of the indoor unit 20 of the air conditioner. In FIG. 4, reference numeral 31 denotes a sensor unit.

図４に示すように、底フレーム２１の略中央にモータ２６を固定している。このモータ２６の軸が接続された室内ファン８を、軸が前後方向になるように底フレーム２１に配置している。上記室内ファン８は、前面側から吸い込んだ空気を軸に対して半径方向外向に吹き出すターボファンである。また、上記底フレーム２１に室内ファン８の前面側にベルマウス２７を設けている。そして、上記ベルマウス４の前面側に室内熱交換器５を配置し、その室内熱交換器５の前面側に前面グリル２２を取り付け、その前面グリル２２の前面側に前面パネル２３を取り付けている。上記前面グリル２２の開口部２２aにフィルタ２５を取り付けている。また、上記ベルマウス２７の下部かつ室内熱交換器５の下側には、ドレンパン２８を配置している。   As shown in FIG. 4, the motor 26 is fixed to the approximate center of the bottom frame 21. The indoor fan 8 to which the shaft of the motor 26 is connected is disposed on the bottom frame 21 so that the shaft is in the front-rear direction. The indoor fan 8 is a turbo fan that blows air sucked from the front side outward in the radial direction with respect to the shaft. A bell mouth 27 is provided on the bottom frame 21 on the front side of the indoor fan 8. An indoor heat exchanger 5 is arranged on the front side of the bell mouth 4, a front grill 22 is attached to the front side of the indoor heat exchanger 5, and a front panel 23 is attached to the front side of the front grill 22. . A filter 25 is attached to the opening 22 a of the front grill 22. A drain pan 28 is disposed below the bell mouth 27 and below the indoor heat exchanger 5.

また、前面グリル２２の上側吹き出し通路Ｐ１の上側吹出口２２aに、吹き出し方向を上下方向に制御するフラップ２４を配置している。一方、前面グリル２２の下側吹き出し通路Ｐ２内に、下側吹出口２２bを開閉するシャッター３０を配置している。このシャッター３０は、底フレーム２１側かつ下側吹き出し通路Ｐ２の下側に設けられた軸３０aを中心に回動し、一点鎖線で示すＡが開状態であり、実線で示すＢが閉状態である。   Further, a flap 24 for controlling the blowing direction in the vertical direction is arranged at the upper outlet 22a of the upper blowing passage P1 of the front grill 22. On the other hand, a shutter 30 for opening and closing the lower air outlet 22b is disposed in the lower air outlet passage P2 of the front grill 22. The shutter 30 rotates around a shaft 30a provided on the bottom frame 21 side and the lower blowing passage P2, and A indicated by a one-dot chain line is in an open state, and B indicated by a solid line is in a closed state. is there.

上記室内ファン８によって前面グリル２２の開口部２２c側から吸い込んだ空気を軸に対して半径方向外向に吹き出すことにより、上側吹き出し通路Ｐ１を介して上側吹出口２２aから斜め上前方に空気を吹き出す一方、下側吹き出し通路Ｐ２を介して下側吹出口２２bから前方に空気を吹き出す。   While the air sucked from the opening 22c side of the front grill 22 by the indoor fan 8 is blown radially outward with respect to the shaft, the air is blown obliquely upward and forward from the upper outlet 22a via the upper outlet passage P1. Then, air is blown forward from the lower outlet 22b via the lower outlet passage P2.

また、図５は上記室内機２０の温度センサ９の位置を説明するための模式図であり、図５(a)は正面模式図を示し、図５(b)は上面模式図を示している。   5 is a schematic diagram for explaining the position of the temperature sensor 9 of the indoor unit 20, FIG. 5 (a) shows a schematic front view, and FIG. 5 (b) shows a schematic top view. .

図５(a),図５(b)に示すように、底フレーム２１内の室内熱交換器５の右側方かつ上方に電装品箱５０を配置している。また、前面グリル２２の上部に上側吹出口２２aを配置する一方、前面グリル２２の下部に部側吹出口２２bを配置している。さらに、上記底フレーム２１内の室内熱交換器５の右側方かつ電装品箱５０の下方に、一端が室内熱交換器５と接続された連絡配管Ｌ１,Ｌ２を配置している。そして、上記電装品箱５０の下部前方に、カバーの一例としての基板５１に実装された温度センサ９を配置している。上記基板５１に実装された温度センサ９を、前面グリル２２に設けたセンサ部３１内に配置し、基板５１がセンサ部３１の背面側を覆っている。この基板５１の外周部と前面グリル２２のセンサ部３１の開口の外周部との間をシール部材(図示せず)によりシールすることにより、室内熱交換器５や連絡配管Ｌ１,Ｌ２から温度センサ９への熱の影響をさらに抑えることができる。   As shown in FIGS. 5A and 5B, an electrical component box 50 is disposed on the right side and above the indoor heat exchanger 5 in the bottom frame 21. Further, an upper air outlet 22 a is arranged at the upper part of the front grille 22, while a partial air outlet 22 b is arranged at the lower part of the front grille 22. Further, connecting pipes L 1 and L 2 having one end connected to the indoor heat exchanger 5 are arranged on the right side of the indoor heat exchanger 5 in the bottom frame 21 and below the electrical component box 50. A temperature sensor 9 mounted on a substrate 51 as an example of a cover is disposed in front of the lower part of the electrical component box 50. The temperature sensor 9 mounted on the substrate 51 is disposed in the sensor unit 31 provided on the front grille 22, and the substrate 51 covers the back side of the sensor unit 31. The space between the outer periphery of the substrate 51 and the outer periphery of the opening of the sensor portion 31 of the front grille 22 is sealed with a sealing member (not shown), so that the temperature sensor is connected to the indoor heat exchanger 5 and the communication pipes L1 and L2. The influence of heat on 9 can be further suppressed.

従来であれば、例えば、底フレーム２１の右側面下側にスリットを設けて、側方から室内熱交換器５への風通路を設けて、そのスリットの近傍に温度センサ１０９を配置していたが、停止部屋の室内機に冷媒が溜まらないように冷媒を少しだけ流すマルチタイプの空気調和機では、連絡配管Ｌ１,Ｌ２からの輻射熱の影響を受けて、正確に温度が検出できない。   Conventionally, for example, a slit is provided on the lower side of the right side surface of the bottom frame 21, a wind passage from the side to the indoor heat exchanger 5 is provided, and the temperature sensor 109 is disposed in the vicinity of the slit. However, in a multi-type air conditioner that flows a small amount of refrigerant so that the refrigerant does not accumulate in the indoor unit in the stop room, the temperature cannot be accurately detected due to the influence of radiant heat from the communication pipes L1 and L2.

これに対して、この実施の形態の空気調和機では、温度センサ９の位置を室内熱交換器５と連絡配管Ｌ１,Ｌ２との間とし、さらにカバーである基板５１によって温度センサ９と室内熱交換器５との間かつ温度センサ９と連絡配管Ｌ１,Ｌ２との間を遮ることによって、運転の有無にかかわらず室内熱交換器５と連絡配管Ｌ１,Ｌ２からの輻射熱の影響を軽減することができる。また、運転中は、温度センサ９が配置された前面グリル２２と前面パネル２３との間の空気通路に室内からの空気が流れるので、温度センサ９により正確に温度検出が行われる。したがって、簡単な構成で運転停止中であっても室内温度を正確に検出することができる。   On the other hand, in the air conditioner of this embodiment, the position of the temperature sensor 9 is between the indoor heat exchanger 5 and the connecting pipes L1 and L2, and the temperature sensor 9 and the indoor heat are further covered by the substrate 51 which is a cover. Reducing the influence of radiant heat from the indoor heat exchanger 5 and the connection pipes L1 and L2 regardless of the operation by blocking between the exchanger 5 and between the temperature sensor 9 and the connection pipes L1 and L2. Can do. Further, during operation, air from the room flows through the air passage between the front grille 22 and the front panel 23 where the temperature sensor 9 is disposed, so that the temperature sensor 9 accurately detects the temperature. Therefore, the room temperature can be accurately detected even when the operation is stopped with a simple configuration.

また、上記室内熱交換器５と連絡配管Ｌ１,Ｌ２からの輻射熱の遮蔽するカバーとしての基板５１が、前面グリル２２の一部となっていることによって、基板５１の周囲の前面グリル２２も遮蔽に利用でき、遮蔽の効果を高めることができる。   Further, since the substrate 51 as a cover for shielding the radiant heat from the indoor heat exchanger 5 and the communication pipes L1 and L2 is a part of the front grille 22, the front grille 22 around the substrate 51 is also shielded. It can be used for the shielding effect.

また、上記温度センサ９を室内熱交換器５の前面側平面よりも前方の平面上にすることによって、室内熱交換器５や連絡配管Ｌ１,Ｌ２から離れた位置に温度センサ９を配置でき、室内熱交換器５と連絡配管Ｌ１,Ｌ２からの輻射熱の影響をさらに軽減することができる。   Moreover, the temperature sensor 9 can be arrange | positioned in the position away from the indoor heat exchanger 5 and communication piping L1, L2 by making the said temperature sensor 9 into a plane ahead rather than the front side plane of the indoor heat exchanger 5, The influence of the radiant heat from the indoor heat exchanger 5 and the communication pipes L1 and L2 can be further reduced.

上記実施の形態では、空気調和機の床置き型の室内機について説明したが、空気調和機はこれに限らない。   In the above embodiment, the floor-standing indoor unit of the air conditioner has been described, but the air conditioner is not limited to this.

また、上記実施の形態では、室外機と室内機を備えたセパレートタイプの空気調和機について説明したが、他の構成の空気調和機にこの発明を適用してもよい。   In the above embodiment, a separate type air conditioner including an outdoor unit and an indoor unit has been described. However, the present invention may be applied to an air conditioner having another configuration.

図１はこの発明の実施の一形態の空気調和機の冷媒回路の回路図である。FIG. 1 is a circuit diagram of a refrigerant circuit of an air conditioner according to an embodiment of the present invention. 図２は上記空気調和機の床置き型の室内機の斜視図である。FIG. 2 is a perspective view of the floor-standing indoor unit of the air conditioner. 図３は上記空気調和機の床置き型の室内機の前面パネルを外した状態の斜視図である。FIG. 3 is a perspective view of the air conditioner with the front panel removed from the floor-standing indoor unit. 図４は上記室内機の断面図である。FIG. 4 is a cross-sectional view of the indoor unit. 図５は上記室内機の温度センサの位置を説明するための模式図である。FIG. 5 is a schematic diagram for explaining the position of the temperature sensor of the indoor unit.

符号の説明Explanation of symbols

１…圧縮機
２…四路弁
３…室外熱交換器
４…電動膨張弁
５…室内熱交換器
６…アキュムレータ
７…室外ファン
８…室内ファン
９…フラップ駆動部
１０…室外機
１１…制御装置
１１a…フラップ制御部
１１b…シャッター制御部
１２,１３…閉鎖弁
２０…室内機
２１…底フレーム
２２…前面グリル
２２a…上側吹出口
２２b…下側吹出口
２２c…開口部
２３…前面パネル
２３a…上側吸込口
２３b…下側吸込口
２３c…側方吸込口
２４…フラップ
２５…フィルタ
２６…モータ
２７…ベルマウス
３０…シャッター
３１…センサ部
Ｌ１,Ｌ２…連絡配管
５０…電装品箱
５１…基板 DESCRIPTION OF SYMBOLS 1 ... Compressor 2 ... Four-way valve 3 ... Outdoor heat exchanger 4 ... Electric expansion valve 5 ... Indoor heat exchanger 6 ... Accumulator 7 ... Outdoor fan 8 ... Indoor fan 9 ... Flap drive part 10 ... Outdoor unit 11 ... Control device DESCRIPTION OF SYMBOLS 11a ... Flap control part 11b ... Shutter control part 12,13 ... Shut-off valve 20 ... Indoor unit 21 ... Bottom frame 22 ... Front grille 22a ... Upper side outlet 22b ... Lower side outlet 22c ... Opening part 23 ... Front panel 23a ... Upper side Suction port 23b ... Lower suction port 23c ... Side suction port 24 ... Flap 25 ... Filter 26 ... Motor 27 ... Bell mouth 30 ... Shutter 31 ... Sensor part L1, L2 ... Connection piping 50 ... Electrical component box 51 ... Substrate

Claims (3)

熱交換器(５)が収納された本体ケーシング(２１)と、
上記本体ケーシング(２１)の前面側に取り付けられ、前方に開口する開口部(２２c)を有する前面グリル(２２)と、
上記本体ケーシング(２１)内に配置され、上記前面グリル(２２)の上記開口部(２２c)を介して前面側から吸い込んだ空気を軸に対して半径方向外向に吹き出すターボファン(８)と、
上記前面グリル(２２)の前面側に取り付けられた前面パネル(２３)と、
上記熱交換器(５)と上記熱交換器(５)に接続された連絡配管(Ｌ１,Ｌ２)との間に取り付けられた温度センサ(９)と、
上記温度センサ(９)と上記熱交換器(５)との間かつ上記温度センサ(９)と上記連絡配管(Ｌ１,Ｌ２)との間を遮るカバー(５１)と
を備え、
上記前面グリル(２２)と上記前面パネル(２３)との間に、上記ターボファン(８)により吸い込まれる空気が上記本体ケーシング(２１)の側方から上記前面グリル(２２)の上記開口部(２２c)に向かって流入する空気通路が形成され、
上記温度センサ(９)は上記空気通路に配置されていることを特徴とする空気調和機。 A body casing (21) in which the heat exchanger (5) is housed,
A front grille (22) attached to the front side of the main casing (21 ) and having an opening (22c) opening forward ;
A turbo fan (8) disposed in the main body casing (21) and for blowing air sucked from the front side through the opening (22c) of the front grille (22) radially outward with respect to an axis;
A front panel (23) attached to the front side of the front grill (22);
A temperature sensor (9) attached between the heat exchanger (5) and the connecting pipes (L1, L2) connected to the heat exchanger (5);
A cover (51) for blocking between the temperature sensor (9) and the heat exchanger (5) and between the temperature sensor (9) and the connecting pipe (L1, L2);
Between the front grille (22) and the front panel (23), the air sucked by the turbofan (8) from the side of the main body casing (21) opens the opening ( 22c) an air passage is formed which flows into
The temperature sensor (9) is an air conditioner which is characterized in that it is arranged in the air passage. 請求項１に記載の空気調和機において、
上記カバー(５１)は、上記前面グリル(２２)の一部となっていることを特徴とする空気調和機。 In the air conditioner according to claim 1,
The air conditioner characterized in that the cover (51) is a part of the front grille (22). 請求項１または２に記載の空気調和機において、
上記温度センサ(９)は、上記熱交換器(５)の前面側平面よりも前方の平面上にあることを特徴とする空気調和機。 In the air conditioner according to claim 1 or 2,
The air conditioner characterized in that the temperature sensor (9) is on a plane in front of the front plane of the heat exchanger (5).
JP2006330325A 2006-12-07 2006-12-07 Air conditioner Active JP4209912B2 (en)

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JP2006330325A JP4209912B2 (en) 2006-12-07 2006-12-07 Air conditioner
PCT/JP2007/073396 WO2008069201A1 (en) 2006-12-07 2007-12-04 Air conditioner
AU2007329954A AU2007329954B2 (en) 2006-12-07 2007-12-04 Air conditioner
ES07850044.4T ES2660903T3 (en) 2006-12-07 2007-12-04 Air conditioner
EP07850044.4A EP2098797B1 (en) 2006-12-07 2007-12-04 Air conditioner

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US7934494B1 (en) * 2003-10-10 2011-05-03 Donna Gail Schneider Collapsible heating apparatus
JP5169684B2 (en) * 2008-09-25 2013-03-27 ダイキン工業株式会社 Air conditioner
JP2010078255A (en) * 2008-09-26 2010-04-08 Mitsubishi Heavy Ind Ltd Air conditioner
JP5441430B2 (en) * 2009-02-18 2014-03-12 ホシザキ電機株式会社 Refrigerator
WO2020188708A1 (en) * 2019-03-18 2020-09-24 三菱電機株式会社 Indoor unit for air conditioner
KR102296710B1 (en) * 2019-03-19 2021-09-02 엘지전자 주식회사 Indoor unit for air conditioner

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JPS6141840A (en) * 1984-08-01 1986-02-28 Matsushita Electric Ind Co Ltd Temperature detecting device for air conditioner
JP2798875B2 (en) * 1993-11-18 1998-09-17 三洋電機株式会社 Air conditioner mounting device
JP3051890B2 (en) * 1994-04-20 2000-06-12 三洋電機株式会社 Air conditioner
JP3030219B2 (en) * 1994-11-28 2000-04-10 三洋電機株式会社 Air conditioner
JPH09112955A (en) * 1995-10-17 1997-05-02 Matsushita Electric Ind Co Ltd Power source cover
JP3402885B2 (en) * 1995-12-22 2003-05-06 三洋電機株式会社 Heat exchanger sensor mounting
US5987911A (en) * 1997-11-13 1999-11-23 Mitsubishi Denki Kabushiki Kaisha Air conditioner

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AU2007329954B2 (en) 2010-09-02
ES2660903T3 (en) 2018-03-26
EP2098797A4 (en) 2013-01-16
EP2098797A1 (en) 2009-09-09
JP2008144999A (en) 2008-06-26

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