JP2015140995A - air conditioner - Google Patents
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- JP2015140995A JP2015140995A JP2014015047A JP2014015047A JP2015140995A JP 2015140995 A JP2015140995 A JP 2015140995A JP 2014015047 A JP2014015047 A JP 2014015047A JP 2014015047 A JP2014015047 A JP 2014015047A JP 2015140995 A JP2015140995 A JP 2015140995A
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Abstract
Description
本発明は、空気調和機に関する。 The present invention relates to an air conditioner.
空気調和機には室内機側に電源コードを配置した室内受電方式と室外機側から室内機側へ電源を供給する室外受電方式の二つの方式がある。 There are two types of air conditioners: an indoor power receiving system in which a power cord is arranged on the indoor unit side, and an outdoor power receiving system that supplies power from the outdoor unit side to the indoor unit side.
特許文献１には、室内機又は室外機の何れかに供給された商用電源を、室内側受電の場合は、室内機と室外機とを接続する接続ケーブルにより、室内側から室外側の室外ＡＣ−ＤＣコンバータ、室外送風機及び冷媒圧縮機のモーターへ供給し、室外側受電の場合は、室内機と室外機とを接続する接続ケーブルにより、室外側から室内側の室内ＡＣ−ＤＣコンバータ、室内送風機へ供給する空気調和機が記載されている。 In Patent Document 1, commercial power supplied to either an indoor unit or an outdoor unit is used, and in the case of indoor power reception, an outdoor AC from the indoor side to the outdoor side is connected by a connection cable that connects the indoor unit and the outdoor unit. -DC converter, outdoor blower and refrigerant compressor, and in the case of outdoor power reception, an indoor AC-DC converter from the outdoor side to the indoor side and an indoor blower by a connection cable connecting the indoor unit and the outdoor unit An air conditioner to be supplied is described.
ここで、同一の電子制御部で室内受電方式と室外受電方式に対応しようとすると、回路構成の違いにより、コネクタ接続などで回路構成を切り替えることや電気基板内のマイコンに受電方式の切り替えを知らせる回路が必要である。 Here, if the same electronic control unit tries to support the indoor power reception method and the outdoor power reception method, the circuit configuration is switched by connector connection or the like and the microcomputer in the electric board is notified of the switching of the power reception method due to the difference in the circuit configuration. A circuit is needed.
そして、受電方式の切り替えに合わせて、スイッチの切り替え、又は、コネクタの差し替え等、人の手によって切り替え作業を行う必要がある。そのため、切り替えミスにより受電方式が合わなくなる課題がある。 Then, in accordance with the switching of the power receiving method, it is necessary to perform a switching operation by human hands, such as switching of a switch or replacement of a connector. Therefore, there is a problem that the power receiving method is not matched due to a switching mistake.
そこで、本発明は、受電方式の切り替えミスを低減する空気調和機を提供することを目的とする。 Then, an object of this invention is to provide the air conditioner which reduces the mistake of switching of a receiving system.
本発明が解決しようとする課題は、商用電源を供給するための室内電源コードと、マイコンを有する電気箱と、室内熱交換器と、室内送風ファンとを有する室内機と、商用電源を供給するための室外電源コードと、室外熱交換器と、室外送風ファンと、圧縮機とを有する室外機とを備え、電気箱は、室外電源コードから供給された商用電源をマイコンへ供給する室内受電と、室内電源コードから供給された商用電源をマイコンへ供給する室外受電とを切り替えるスイッチを有し、スイッチは、室内電源コードが電気箱に取り付けられると室内受電に切り替わり、室内電源コードが電気箱から取り外されると室外受電に切り替わることで達成される。 The problem to be solved by the present invention is to supply an indoor power cord for supplying commercial power, an electric box having a microcomputer, an indoor heat exchanger, an indoor unit having an indoor fan, and supplying commercial power An outdoor power cord, an outdoor heat exchanger, an outdoor blower fan, and an outdoor unit having a compressor, and the electric box includes indoor power receiving for supplying commercial power supplied from the outdoor power cord to the microcomputer. And a switch for switching between outdoor power supply for supplying the commercial power supplied from the indoor power cord to the microcomputer. The switch switches to indoor power reception when the indoor power cord is attached to the electrical box, and the indoor power cord is disconnected from the electrical box. This is achieved by switching to outdoor power reception when removed.
本発明によれば、受電方式の切り替えミスを低減する空気調和機を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the air conditioner which reduces the switching mistake of a receiving system can be provided.
本発明の実施形態について、適宜図面を参照しながら詳細に説明する。なお、各図において共通する部分には同一の符号を付し、重複した説明を省略する。 Embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.
図１は空気調和機のサイクル構成図である。冷房運転時は、圧縮機３４より吐出された高温、且つ、高圧の冷媒は、四方弁３５を介して室外熱交換機３７に流入する。室外熱交換機３７に流入した冷媒は、室外送風ファン３８によって送られる室外の空気と熱交換することで、凝縮されて液冷媒となる。液冷媒は、膨張弁３６を通過することで低温低圧の二相冷媒になり、室内熱交換器３９に流入する。室内熱交換器３９に流入した低温低圧の二相冷媒は、室内送風ファン４０によって送られる室内の空気と熱交換する。このとき、室内熱交換器３９に送られた室内の空気は、室内熱交換器３９に流入した低温低圧の二相冷媒によって冷却され、吹出口３から室内に吐出される。吹出口３から室内に吐出される空気は、吸込口２における空気の温度よりも低いため、室内の温度を下げることができる。室内熱交換器３９で熱交換された冷媒は四方弁３５を介して再び圧縮機３４に戻る。 FIG. 1 is a cycle configuration diagram of an air conditioner. During the cooling operation, the high-temperature and high-pressure refrigerant discharged from the compressor 34 flows into the outdoor heat exchanger 37 via the four-way valve 35. The refrigerant flowing into the outdoor heat exchanger 37 is condensed and becomes liquid refrigerant by exchanging heat with the outdoor air sent by the outdoor fan 38. The liquid refrigerant passes through the expansion valve 36 to become a low-temperature and low-pressure two-phase refrigerant and flows into the indoor heat exchanger 39. The low-temperature and low-pressure two-phase refrigerant that has flowed into the indoor heat exchanger 39 exchanges heat with indoor air sent by the indoor fan 40. At this time, the indoor air sent to the indoor heat exchanger 39 is cooled by the low-temperature and low-pressure two-phase refrigerant that has flowed into the indoor heat exchanger 39, and is discharged into the room from the outlet 3. Since the air discharged from the blower outlet 3 into the room is lower than the temperature of the air at the suction port 2, the room temperature can be lowered. The refrigerant heat-exchanged by the indoor heat exchanger 39 returns to the compressor 34 again via the four-way valve 35.
図２は室内機の筺体を取り除いた状態における斜視図である。図２に示すように、室内熱交換器３９と室内送風ファン４０は室内機（図示せず）に配置されている。さらに、室内機には、室内熱交換器３９の横に電気箱２０が設置されている。尚、圧縮機３４と室外熱交換器２と室外送風ファン３８と膨張弁３６は、室外機（図示せず）に配置されている。 FIG. 2 is a perspective view of the indoor unit with the housing removed. As shown in FIG. 2, the indoor heat exchanger 39 and the indoor blower fan 40 are arranged in an indoor unit (not shown). Furthermore, the electric box 20 is installed beside the indoor heat exchanger 39 in the indoor unit. In addition, the compressor 34, the outdoor heat exchanger 2, the outdoor ventilation fan 38, and the expansion valve 36 are arrange | positioned at the outdoor unit (not shown).
図３は、室内機電子制御部の回路構成の概略図である。室内機は、室内外電源線及び室内外通信線で室外機と接続された電子制御部１０を備える。又、電子制御部１０は室内の室内電源コード１２に接続可能な構成となっている。 FIG. 3 is a schematic diagram of a circuit configuration of the indoor unit electronic control unit. The indoor unit includes an electronic control unit 10 connected to the outdoor unit through an indoor / outdoor power line and an indoor / outdoor communication line. The electronic control unit 10 can be connected to an indoor power cord 12 in the room.
室内受電方式の場合、室内電源コード１２から電子制御部１０へ電気が供給される。そして、供給された電気は電源回路を通して所定の電圧値に変換され、電子制御部１０内のマイコン１３等を動作させる。例えば、電子制御部１０を動作させるために、５Ｖ〜２０Ｖ程度の低電圧直流電源が作成される。 In the case of the indoor power receiving method, electricity is supplied from the indoor power cord 12 to the electronic control unit 10. The supplied electricity is converted into a predetermined voltage value through the power supply circuit, and the microcomputer 13 in the electronic control unit 10 is operated. For example, in order to operate the electronic control unit 10, a low voltage DC power supply of about 5V to 20V is created.
次に、室内外受電方式の切り替え方法について説明する。図４は、室内機電気箱の概略図である。 Next, an indoor / outdoor power receiving method switching method will be described. FIG. 4 is a schematic diagram of the indoor unit electrical box.
空気調和機への電源供給方法として、室内受電方式と室外受電方式がある。ここで、国や地域によって用いられる受電方式が異なるため、同一の機種であっても、使われる国や地域によって、受電方式を切り替える必要がある。そのため、空気調和機の取り付け工事において、受電方式を切り替える場合、受電方式の切り替えミスが発生する可能性がある。 As a method for supplying power to the air conditioner, there are an indoor power receiving method and an outdoor power receiving method. Here, since the power receiving method used differs depending on the country or region, it is necessary to switch the power receiving method depending on the country or region used even for the same model. Therefore, when the power receiving method is switched in the installation work of the air conditioner, a mistake in switching the power receiving method may occur.
そこで、本実施例に係る空気調和機は、室内機に組み込まれた電気箱２０に室内電源コード１２を取り付けることができる構造とし、室内電源コード１２を電気箱２０に取り付けると室内受電方式に切り替わり、室内電源コード１２を電気箱２０から取り外すと室外受電方式に切り替わるようにしている。 Therefore, the air conditioner according to the present embodiment has a structure in which the indoor power cord 12 can be attached to the electric box 20 incorporated in the indoor unit, and when the indoor power cord 12 is attached to the electric box 20, the indoor power supply system is switched to the indoor power receiving method. When the indoor power cord 12 is removed from the electric box 20, the outdoor power receiving system is switched.
すなわち、本実施例に係る空気調和機は、室内のコンセントより商用電源を供給するための室内電源コード１２と、マイコン１３を有する電気箱２０と、室内熱交換器３９と、室内送風ファン４０とを有する室内機と、室内のコンセントより商用電源を供給するための室外電源コードと、室外熱交換器２と、室外送風ファン３８と、圧縮機３４とを有する室外機とを備え、電気箱２０は、室外電源コードから供給された商用電源をマイコン１３へ供給する室内受電（室内受電方式）と、室内電源コード１２から供給された商用電源をマイコン１３へ供給する室外受電（室外受電方式）とを切り替えるスイッチ１１を有し、スイッチ１１は、室内電源コード１２が電気箱２０に取り付けられると室内受電（室内受電方式）に切り替わり、室内電源コード１２が電気箱２０から取り外されると室外受電（室外受電方式）に切り替わる。 That is, the air conditioner according to the present embodiment includes an indoor power cord 12 for supplying commercial power from an indoor outlet, an electric box 20 having a microcomputer 13, an indoor heat exchanger 39, and an indoor fan 40. And an outdoor power cord for supplying commercial power from an indoor outlet, an outdoor heat exchanger 2, an outdoor fan 38, and a compressor 34, and an electric box 20 Are: indoor power reception (indoor power reception method) for supplying commercial power supplied from the outdoor power cord to the microcomputer 13; outdoor power reception (outdoor power reception method) for supplying commercial power supplied from the indoor power cord 12 to the microcomputer 13; When the indoor power cord 12 is attached to the electric box 20, the switch 11 switches to indoor power reception (indoor power reception system), and the indoor power cord 12 Once the code 12 is removed from the electrical box 20 is switched to the outdoor power-receiving (outdoor power receiving system).
本実施例によれば、電源コード２１の取り付けによって、スイッチ１１のＯＮとＯＦＦが切り替わるので、受電方式の切り替えミスを防止することができる。なお、本実施例では、スイッチがオン状態のときに室内受電（室内受電方式）となり、スイッチがオフ状態のときに室外受電（室外受電方式）となるようにしている。 According to the present embodiment, since the switch 11 is switched ON and OFF by the attachment of the power cord 21, it is possible to prevent a mistake in switching the power receiving method. In this embodiment, indoor power reception (indoor power reception method) is performed when the switch is on, and outdoor power reception (outdoor power reception method) is performed when the switch is off.
さらに、マイコン１３と室内受電設定回路及び室外受電設定回路との接続をスイッチ１１によって切り替え可能な構成としている。そして、本実施例に係る空気調和機は、電気箱２０は、マイコン１３へ供給する電圧値を設定する室内受電設定回路と、マイコン１３へ供給する電圧値を設定する室外受電設定回路とを有し、室内受電設定回路で設定される電圧値と室外受電設定回路で設定される電圧値は異なる。 Further, the connection between the microcomputer 13 and the indoor power reception setting circuit and the outdoor power reception setting circuit can be switched by the switch 11. In the air conditioner according to the present embodiment, the electric box 20 has an indoor power reception setting circuit that sets a voltage value to be supplied to the microcomputer 13 and an outdoor power reception setting circuit that sets a voltage value to be supplied to the microcomputer 13. However, the voltage value set by the indoor power reception setting circuit is different from the voltage value set by the outdoor power reception setting circuit.
本実施例によれば、マイコン１３は室内受電方式と室外受電方式のうち、どちらの受電方式であるかマイコン１３に供給される電圧値によって判別することができる。 According to the present embodiment, the microcomputer 13 can determine which of the indoor power receiving system and the outdoor power receiving system is based on the voltage value supplied to the microcomputer 13.
例えば、室内受電方式の場合にマイコン１３へ入力する電圧値を約５Ｖとし、室外受電方式の場合にマイコン１３へ入力する電圧値を約０Ｖとすることで、マイコン１３に現在の受電方式の認識を変更させることができる。 For example, the voltage value input to the microcomputer 13 in the case of the indoor power reception method is set to about 5 V, and the voltage value input to the microcomputer 13 in the case of the outdoor power reception method is set to about 0 V, so that the microcomputer 13 recognizes the current power reception method. Can be changed.
そして、室内受電方式の場合、マイコン１３は突入電流保護回路を動作させて室内外電源線を通して、室内機から室外機へ電気の供給を行う。一方、室外受電方式の場合、室内電源コード１２は電子制御部１０に接続されず、室外機より室内外電源線を通して電源電圧が供給され、ＯＦＦされたスイッチ１１を通して室内機の電子制御部１０のマイコン１３へ電気が供給される。 In the case of the indoor power receiving method, the microcomputer 13 operates the inrush current protection circuit to supply electricity from the indoor unit to the outdoor unit through the indoor / outdoor power line. On the other hand, in the case of the outdoor power receiving method, the indoor power cord 12 is not connected to the electronic control unit 10, the power supply voltage is supplied from the outdoor unit through the indoor / outdoor power line, and the electronic control unit 10 of the indoor unit through the switch 11 turned off. Electricity is supplied to the microcomputer 13.
このように、本実施例では室内受電方式と室外受電方式を切り替える場合に、スイッチ１１を切り替えることで、回路構成及び電子制御部１０内のマイコン１３の受電方式の認識変更を行う。 As described above, in this embodiment, when switching between the indoor power reception method and the outdoor power reception method, the switch 11 is switched to change the recognition of the circuit configuration and the power reception method of the microcomputer 13 in the electronic control unit 10.
なお、スイッチ１１は回路の切り替えであるため、この部分はコネクタなどで経路を変更する方式でもよい。また、スイッチ１１を電気基板上に設け、手作業でスイッチ１１を切り替える方式でもよい。 In addition, since the switch 11 is a circuit changeover, a system in which the path is changed by a connector or the like may be used. Alternatively, the switch 11 may be provided on an electric board and the switch 11 may be manually switched.
図５は、電源コードバンドと切り替えスイッチの概略図である。本実施例では、図３に示すようにスイッチ１１を２回路２接点構成とし、図５に示すように、スイッチ１１を電気箱２０のうち、電源コードバンド２２が取り付けられる位置の近くに配置している。そして、室内電源コード１２を電源コードバンド２２に取り付ける構造とし、室内電源コード１２の代わりに電源コードバンド２２を電気箱２０に取り付けるとスイッチ１１がＯＮとなり、室内受電方式に切り替わり、室内電源コード１２を電気箱２０から取り外すとスイッチ１１がＯＦＦとなり、室外受電方式に切り替わるようにしている。本実施例では、電源コードバンド２２をスライドさせることで、スイッチ１１が切り替わるようにしている。 FIG. 5 is a schematic diagram of a power cord band and a changeover switch. In this embodiment, the switch 11 has a two-circuit two-contact configuration as shown in FIG. 3, and the switch 11 is arranged in the electrical box 20 near the position where the power cord band 22 is attached as shown in FIG. ing. When the indoor power cord 12 is attached to the power cord band 22 and the power cord band 22 is attached to the electric box 20 instead of the indoor power cord 12, the switch 11 is turned on to switch to the indoor power receiving system. Is removed from the electrical box 20, the switch 11 is turned off, and the outdoor power receiving system is switched. In this embodiment, the switch 11 is switched by sliding the power cord band 22.
そして、２回路２接点構成のスイッチ１１のうち、１回路は電子制御部内の電源電圧供給の回路構成を変更し、もう１回路はマイコン１３へ入力する設定電圧値を変更する構成とし、室内機の室内外受電方式の自動切り替えを達成している。 Of the two-circuit, two-contact switch 11, one circuit changes the power supply voltage supply circuit configuration in the electronic control unit, and the other circuit changes the set voltage value to be input to the microcomputer 13. The automatic switching between indoor and outdoor power receiving systems has been achieved.
なお、電源コードバンド２２の代わりに、室内電源コード１２自体の取り付け及び取り外しによって、受電方式を切り替えるようにしてもよい。 Instead of the power cord band 22, the power receiving method may be switched by attaching and detaching the indoor power cord 12 itself.
１０ 電子制御部
１１ スイッチ
１２ 室内電源コード
１３ マイコン
２０ 電気箱
２２ 電源コードバンド
10 Electronic Control Unit 11 Switch 12 Indoor Power Cord 13 Microcomputer 20 Electrical Box 22 Power Cord Band
Claims (2)
商用電源を供給するための室外電源コードと、室外熱交換器と、室外送風ファンと、圧縮機とを有する室外機とを備え、
前記電気箱は、前記室外電源コードから供給された商用電源を前記マイコンへ供給する室内受電と、前記室内電源コードから供給された商用電源を前記マイコンへ供給する室外受電とを切り替えるスイッチを有し、
前記スイッチは、前記室内電源コードが前記電気箱に取り付けられると前記室内受電に切り替わり、前記室内電源コードが前記電気箱から取り外されると前記室外受電に切り替わる空気調和機。 An indoor power cord for supplying commercial power, an electric box having a microcomputer, an indoor heat exchanger, and an indoor unit having an indoor blower fan,
An outdoor power cord for supplying commercial power, an outdoor heat exchanger, an outdoor fan, and an outdoor unit having a compressor,
The electrical box has a switch that switches between indoor power reception for supplying the commercial power supplied from the outdoor power cord to the microcomputer and outdoor power supply for supplying the commercial power supplied from the indoor power cord to the microcomputer. ,
The switch is an air conditioner that switches to indoor power reception when the indoor power cord is attached to the electrical box and switches to outdoor power reception when the indoor power cord is removed from the electrical box.
前記室内受電設定回路で設定される電圧値と前記室外受電設定回路で設定される電圧値は異なることを特徴とする請求項１に記載の空気調和機。 The electric box has an indoor power reception setting circuit that sets a voltage value that the indoor power reception circuit supplies to the microcomputer, and an outdoor power reception setting circuit that sets a voltage value that the outdoor power reception circuit supplies to the microcomputer,
The air conditioner according to claim 1, wherein a voltage value set by the indoor power reception setting circuit is different from a voltage value set by the outdoor power reception setting circuit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023139762A1 (en) * | 2022-01-21 | 2023-07-27 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner and ventilation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023139762A1 (en) * | 2022-01-21 | 2023-07-27 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner and ventilation device |
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