JPH06337156A - Air-conditioner - Google Patents
Air-conditionerInfo
- Publication number
- JPH06337156A JPH06337156A JP5125697A JP12569793A JPH06337156A JP H06337156 A JPH06337156 A JP H06337156A JP 5125697 A JP5125697 A JP 5125697A JP 12569793 A JP12569793 A JP 12569793A JP H06337156 A JPH06337156 A JP H06337156A
- Authority
- JP
- Japan
- Prior art keywords
- indoor
- unit
- outdoor unit
- outdoor
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
(57)【要約】
【目的】本発明は室内外分離形の空気調和機に関し、そ
の目的は、商用電源を室外機で受電し室内機に電熱器用
として伝送し、室外機の直流電源回路から室内制御回路
に直流電源を供給する手段を提供することにある。
【構成】直流電源を供給する接続線に接続された変復調
回路を室内機および室外機に設け、室内制御回路と室外
制御回路の通信を変復調機を介して上記接続線を通して
行うこと、および商用電源を室外機で受電し室内機に電
熱器用として伝送する。
【効果】商用電源を室外機で受電し、接続線の数を増や
すことなく、室外機より直流電源および商用電源を供給
できる。
(57) [Summary] [Object] The present invention relates to an indoor-outdoor separation type air conditioner, and an object thereof is to receive commercial power from an outdoor unit and transmit it to an indoor unit for use as an electric heater, and from a DC power circuit of the outdoor unit. It is to provide means for supplying DC power to an indoor control circuit. [Composition] A modulation / demodulation circuit connected to a connection line for supplying a DC power source is provided in an indoor unit and an outdoor unit, and communication between an indoor control circuit and an outdoor control circuit is performed through the connection line via the modulation / demodulation unit, and a commercial power supply Is received by the outdoor unit and transmitted to the indoor unit for use as an electric heater. [Effects] Commercial power can be received by the outdoor unit, and DC power and commercial power can be supplied from the outdoor unit without increasing the number of connection lines.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、室内外分離形の空気調
和機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor / outdoor separation type air conditioner.
【０００２】[0002]
【従来の技術】図２に従来技術による空気調和機の全体
構成図を示す。１は圧縮機、２は圧縮機１を駆動する電
動機、３は室内熱交換器、４は室外熱交換器、５は切り
換え弁、６は減圧器であり、以上で冷凍サイクルを構成
する。また、７は室内送風機、８は室外送風機である。
９は商用電源であり、空気調和機の電源である。１０は
室内制御回路、１１は室外制御回路、１２は直流電源回
路、１５および１６は接続線である。2. Description of the Related Art FIG. 2 shows an overall configuration of an air conditioner according to the prior art. Reference numeral 1 is a compressor, 2 is an electric motor for driving the compressor 1, 3 is an indoor heat exchanger, 4 is an outdoor heat exchanger, 5 is a switching valve, and 6 is a pressure reducer, which constitutes a refrigeration cycle. Further, 7 is an indoor blower, and 8 is an outdoor blower.
Reference numeral 9 is a commercial power source, which is a power source for the air conditioner. Reference numeral 10 is an indoor control circuit, 11 is an outdoor control circuit, 12 is a DC power supply circuit, and 15 and 16 are connection lines.
【０００３】室外機１４で商用電源９を受電し、直流電
源回路１２に供給する。直流電源回路１２は低電圧の直
流電源を作成して、接続線１５により室内機１３の室内
制御回路１０に供給する。室内制御回路１０は室温と設
定温度より、圧縮機１の運転停止制御や室内送風機７の
制御等の空気調和機の全体制御を行う。室外制御回路１
１は室内制御回路１０の指令に従って室外機１４の制御
を行う。室内制御回路１０と室外制御回路１１の通信は
接続線１６により行われる。The outdoor unit 14 receives the commercial power supply 9 and supplies it to the DC power supply circuit 12. The DC power supply circuit 12 creates a low-voltage DC power supply and supplies it to the indoor control circuit 10 of the indoor unit 13 via the connection line 15. The indoor control circuit 10 performs overall control of the air conditioner such as control of stopping the operation of the compressor 1 and control of the indoor blower 7 based on the room temperature and the set temperature. Outdoor control circuit 1
Reference numeral 1 controls the outdoor unit 14 in accordance with a command from the indoor control circuit 10. Communication between the indoor control circuit 10 and the outdoor control circuit 11 is performed by the connection line 16.
【０００４】従来技術によれば、室外機１４から室内機
１３に供給される電源が低電圧の直流電源であるので、
接続線１５および１６を誤接続しても室内制御回路１０
の破壊を防止することができるという特徴がある。従来
技術による空気調和機の例としては、特開平４−０７３
５４３号公報がある。According to the prior art, since the power supplied from the outdoor unit 14 to the indoor unit 13 is a low voltage DC power source,
Indoor control circuit 10 even if connection lines 15 and 16 are erroneously connected
There is a feature that can prevent the destruction of. As an example of an air conditioner according to the related art, Japanese Patent Laid-Open No. 4-073
There is 543 publication.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来技術による空気調和機は低電圧の直流電源１２より室
内機１３に電源供給しているため、室内機に電熱器を設
置した場合大電流を供給しなくてはならないという問題
点があった。However, since the air conditioner according to the above-mentioned prior art supplies power to the indoor unit 13 from the low-voltage DC power supply 12, a large current is supplied when an electric heater is installed in the indoor unit. There was a problem that I had to do it.
【０００６】本発明の目的は、商用電源９を室外機１４
で受電する空気調和機において、接続線の数を増やすこ
となく室外機１４に設けた直流電源回路１２より室内制
御回路１０の電源および室外機１４で受電した商用電源
９を供給する手段を提供することにある。An object of the present invention is to connect the commercial power source 9 to the outdoor unit 14
In the air conditioner that receives electric power by means of, the means for supplying the power of the indoor control circuit 10 and the commercial power 9 received by the outdoor unit 14 from the DC power supply circuit 12 provided in the outdoor unit 14 without increasing the number of connecting lines. Especially.
【０００７】[0007]
【課題を解決するための手段】上記目的は、直流電源を
供給する接続線に接続された変復調回路を室内機と室外
機に設け、室内制御回路と室外制御回路の通信を直流電
源を供給する上記接続線に重畳させて行い、かつ商用電
源を別接続線で供給することにより達成される。SUMMARY OF THE INVENTION It is an object of the present invention to provide a modulation / demodulation circuit connected to a connection line for supplying a DC power source in an indoor unit and an outdoor unit, and supply a DC power source for communication between the indoor control circuit and the outdoor control circuit. It is achieved by superimposing on the connection line and supplying commercial power from another connection line.
【０００８】[0008]
【作用】室外機で商用電源を受電し、接続線により室内
機に伝送する。また、室外機に設けた直流電源回路は接
続線により室内制御回路に直流電源を供給する。直流電
源を供給する接続線に接続された変復調回路を室内機お
よび室外機に設け、室内制御回路と室外制御回路は変復
調回路を介して上記接続線を通して通信を行う。[Function] The outdoor unit receives commercial power and transmits it to the indoor unit through the connection line. Further, the DC power supply circuit provided in the outdoor unit supplies DC power to the indoor control circuit through the connection line. The indoor / outdoor unit is provided with a modulation / demodulation circuit connected to a connection line for supplying DC power, and the indoor control circuit and the outdoor control circuit communicate with each other through the connection line via the modulation / demodulation circuit.
【０００９】従って、商用電源を室外機で受電し室外機
から室内機に伝送する接続線を設けても、直流電源を供
給する接続線と通信を行う接続線を共用化できるので接
続線の数は増えない。Therefore, even if a connection line for receiving commercial power from the outdoor unit and transmitting it from the outdoor unit to the indoor unit is provided, the connection line for supplying the DC power supply and the connection line for communication can be shared, so that the number of connection lines can be increased. Does not increase.
【００１０】[0010]
【実施例】以下、本発明による空気調和機の実施例を説
明する。図１は本発明の実施例の全体構成図である。１
は圧縮機、２は圧縮機１を駆動する電動機、３は室内熱
交換器、４は室外熱交換器、５は切り換え弁、６は減圧
器であり、以上で冷凍サイクルを構成する。また、７は
室内送風機、８は室外送風機である。９は商用電源であ
り、空気調和機の電源である。１０は室内制御回路、１
１は室外制御回路、１２は直流電源回路、１７−ａおよ
び１７−ｂは変復調回路、１８および１９は接続線であ
る。Embodiments of the air conditioner according to the present invention will be described below. FIG. 1 is an overall configuration diagram of an embodiment of the present invention. 1
Is a compressor, 2 is an electric motor for driving the compressor 1, 3 is an indoor heat exchanger, 4 is an outdoor heat exchanger, 5 is a switching valve, and 6 is a decompressor, which constitutes a refrigeration cycle. Further, 7 is an indoor blower, and 8 is an outdoor blower. Reference numeral 9 is a commercial power source, which is a power source for the air conditioner. 10 is an indoor control circuit, 1
Reference numeral 1 is an outdoor control circuit, 12 is a DC power supply circuit, 17-a and 17-b are modulation / demodulation circuits, and 18 and 19 are connection lines.
【００１１】室外機１４で商用電源９を受電し、接続線
１８により室内機１３に供給する。直流電源回路１２は
商用電源９より低電圧の直流電源を作成して、接続線１
９により室内機１３の室内制御回路１０に供給する。室
内制御回路１０は室温と設定温度より、圧縮機１の運転
停止制御や室内送風機７の制御等の空気調和機の全体制
御を行う。室外制御回路１１は室内制御回路１０の指令
に従って室外機１４の制御を行う。室内制御回路１０と
室外制御回路１１の通信は、接続線１９に接続された室
内機側の変復調回路１７−ａおよび室外機側の変復調回
路１７−ｂを介して接続線１９を通して行われる。室内
制御回路１０と室外制御回路１１の通信を従来技術のよ
うに通信専用の接続線を用いずに、直流電源を供給する
接続線１９に重畳させて行うことにより接続線の数を低
減し、商用電源９を室外機１４で受電し、室外機１４か
ら室内機１３に伝送する接続線１８を設けても接続線の
数を従来と同じにすることができる。かつ商用電源９か
ら継電器２０を介して電熱器２１に電力を供給すること
により電流容量を小さくできる。The outdoor unit 14 receives the commercial power supply 9 and supplies it to the indoor unit 13 through the connection line 18. The DC power supply circuit 12 creates a DC power supply with a lower voltage than the commercial power supply 9 and
9 supplies the indoor control circuit 10 of the indoor unit 13. The indoor control circuit 10 performs overall control of the air conditioner such as control of stopping the operation of the compressor 1 and control of the indoor blower 7 based on the room temperature and the set temperature. The outdoor control circuit 11 controls the outdoor unit 14 according to a command from the indoor control circuit 10. Communication between the indoor control circuit 10 and the outdoor control circuit 11 is performed via the connection line 19 via the indoor unit side modulation / demodulation circuit 17-a and the outdoor unit side modulation / demodulation circuit 17-b connected to the connection line 19. The communication between the indoor control circuit 10 and the outdoor control circuit 11 is performed by superimposing it on the connection line 19 for supplying a DC power supply, without using a connection line dedicated to communication as in the prior art, thereby reducing the number of connection lines. Even if the connection line 18 that receives the commercial power 9 from the outdoor unit 14 and is transmitted from the outdoor unit 14 to the indoor unit 13 is provided, the number of connection lines can be made the same as the conventional one. Moreover, the current capacity can be reduced by supplying electric power from the commercial power source 9 to the electric heater 21 via the relay 20.
【００１２】次に、本発明の他の実施例について説明す
る。図１において商用電源９を室内機１３で受電した場
合、室内機１３と室外機１４の接続線のうち接続線１８
は室外機１４への商用電源の伝送として用い、直流電源
を伝送する接続線１９で電源の供給と室内制御回路１０
と室外制御回路１１の通信が可能となり、接続線の数を
従来と同じにすることができる。かつ商用電源９から継
電器２０を介して電熱器２１に電力を供給することによ
り電流容量を小さくできる。Next, another embodiment of the present invention will be described. In FIG. 1, when the commercial power source 9 is received by the indoor unit 13, the connection line 18 of the connection lines between the indoor unit 13 and the outdoor unit 14
Is used as the transmission of commercial power to the outdoor unit 14, and the power supply and the indoor control circuit 10 are supplied through the connection line 19 for transmitting DC power.
And the outdoor control circuit 11 can communicate with each other, and the number of connecting lines can be made the same as the conventional one. Moreover, the current capacity can be reduced by supplying electric power from the commercial power source 9 to the electric heater 21 via the relay 20.
【００１３】次に、継電器２０の取付構造について説明
する。継電器２０を介して電熱器２１に供給する電力は
５００Ｗから１０００Ｗになる。継電器２０が接触不良
をを起こした場合、火災事故につながる場合もある。継
電器２０の取付部分を金属箱等の不燃箱２２で囲うこと
により火災等の事故を防げる。Next, the mounting structure of the relay 20 will be described. The power supplied to the electric heater 21 via the relay 20 changes from 500W to 1000W. If the relay 20 causes a contact failure, it may lead to a fire accident. An accident such as a fire can be prevented by surrounding the mounting portion of the relay 20 with a non-combustible box 22 such as a metal box.
【００１４】[0014]
【発明の効果】本発明によれば、商用電源を室外機で受
電する空気調和機において、室外機から商用電源を室内
機に供給できるので室内機に電熱器を設けたときの電流
容量が小さくでき、室内機の小形化が図れる。また、継
電器を不燃箱で囲うので安全性を向上できる。According to the present invention, in an air conditioner that receives commercial power from an outdoor unit, commercial power can be supplied from the outdoor unit to the indoor unit, so the current capacity when an electric heater is provided in the indoor unit is small. As a result, the indoor unit can be downsized. Also, since the relay is surrounded by a non-combustible box, safety can be improved.
【図１】本発明による空気調和機の全体構成図である。FIG. 1 is an overall configuration diagram of an air conditioner according to the present invention.
【図２】従来技術による空気調和機の全体構成図であ
る。FIG. 2 is an overall configuration diagram of an air conditioner according to a conventional technique.
１…圧縮機、 ２…圧縮機１を駆動する電動機、 ３…室内熱交換器、 ４…室外熱交換器、 ５…切り換え弁、 ６…減圧器、 ７…室内送風機、 ８…室外送風機、 ９…商用電源、 １０…室内制御回路、 １１…室外制御回路、 １２…直流電源回路、 １３…室内機、 １４…室外機、 １５…接続線、 １６…接続線、 １７…変復調回路、 １８…接続線、 １９…接続線、 ２０…継電器、 ２１…電熱器、 ２２…不燃箱。 DESCRIPTION OF SYMBOLS 1 ... Compressor, 2 ... Electric motor which drives the compressor 1, 3 ... Indoor heat exchanger, 4 ... Outdoor heat exchanger, 5 ... Switching valve, 6 ... Pressure reducer, 7 ... Indoor blower, 8 ... Outdoor blower, 9 ... commercial power supply, 10 ... indoor control circuit, 11 ... outdoor control circuit, 12 ... DC power supply circuit, 13 ... indoor unit, 14 ... outdoor unit, 15 ... connection line, 16 ... connection line, 17 ... modulation / demodulation circuit, 18 ... connection Wire, 19 ... Connection wire, 20 ... Relay, 21 ... Electric heater, 22 ... Incombustible box.
Claims (5)
電動機と、室内熱交換器と、室外熱交換器と、切り換え
弁と、減圧器と、室内送風機および室外送風機より冷凍
サイクルを構成し、商用電源を室外機で受電し、室外機
に直流電源回路を設け、１台あるいは複数台の室内機と
室外機を直流電源を伝送する接続線により接続したこと
を特徴とする空気調和機。1. A refrigeration cycle comprising a compressor for refrigerant compression, an electric motor for driving the compressor, an indoor heat exchanger, an outdoor heat exchanger, a switching valve, a pressure reducer, an indoor blower and an outdoor blower. An air conditioner characterized by receiving commercial power from an outdoor unit, providing a DC power supply circuit in the outdoor unit, and connecting one or more indoor units to the outdoor unit through a connection line that transmits DC power. Machine.
た商用電源を室外機と室内機を接続する接続線により室
外機から室内機に供給し、かつ継電器を介して電熱器へ
電源供給を行うことを特徴とする請求項１記載の空気調
和機。2. An electric heater is installed in the indoor unit, the commercial power received by the outdoor unit is supplied from the outdoor unit to the indoor unit by a connecting line connecting the outdoor unit and the indoor unit, and also to the electric heater via a relay. The air conditioner according to claim 1, wherein power is supplied.
機の接続線により室外機に商用電源を供給し、室外機に
直流電源回路を設け、室内機と室外機の接続線により室
内機に直流電源を供給し、直流電源で室内制御回路を動
作させることを特徴とする空気調和機。3. An indoor unit receives commercial power, a commercial power is supplied to the outdoor unit by a connection line between the indoor unit and the outdoor unit, a DC power circuit is provided in the outdoor unit, and a connection line between the indoor unit and the outdoor unit is provided. An air conditioner characterized by supplying DC power to an indoor unit and operating an indoor control circuit with the DC power.
た商用電源を継電器を介して電熱器へ電源供給を行うこ
とを特徴とする請求項３記載の空気調和機。4. The air conditioner according to claim 3, wherein an electric heater is installed in the indoor unit, and commercial power received by the indoor unit is supplied to the electric heater via a relay.
われた構造としたことを特徴とする請求項２または請求
項４記載の空気調和機。5. The air conditioner according to claim 2 or 4, wherein the relay mounting portion has a structure surrounded by a flame-retardant box or an incombustible box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5125697A JPH06337156A (en) | 1993-05-27 | 1993-05-27 | Air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5125697A JPH06337156A (en) | 1993-05-27 | 1993-05-27 | Air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06337156A true JPH06337156A (en) | 1994-12-06 |
Family
ID=14916475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5125697A Pending JPH06337156A (en) | 1993-05-27 | 1993-05-27 | Air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06337156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654109A (en) * | 2020-05-12 | 2021-11-16 | 青岛海尔空调器有限总公司 | Air conditioner, control method and control device thereof |
| WO2025161192A1 (en) * | 2024-01-30 | 2025-08-07 | 佛山市顺德区美的电子科技有限公司 | Air conditioner indoor and outdoor unit power supply circuit, apparatus, air conditioner, control method, and medium |
-
1993
- 1993-05-27 JP JP5125697A patent/JPH06337156A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654109A (en) * | 2020-05-12 | 2021-11-16 | 青岛海尔空调器有限总公司 | Air conditioner, control method and control device thereof |
| WO2025161192A1 (en) * | 2024-01-30 | 2025-08-07 | 佛山市顺德区美的电子科技有限公司 | Air conditioner indoor and outdoor unit power supply circuit, apparatus, air conditioner, control method, and medium |
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