CN201875842U - Air conditioner using combustible refrigerant - Google Patents
Air conditioner using combustible refrigerant Download PDFInfo
- Publication number
- CN201875842U CN201875842U CN2010202503375U CN201020250337U CN201875842U CN 201875842 U CN201875842 U CN 201875842U CN 2010202503375 U CN2010202503375 U CN 2010202503375U CN 201020250337 U CN201020250337 U CN 201020250337U CN 201875842 U CN201875842 U CN 201875842U
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- conditioner
- combustible refrigerant
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Abstract
The utility model provides an air conditioner using a combustible refrigerant, which is provided with an electric control system comprising a weak current control chip, a strong current electric appliance operation control circuit, and a switch power supply circuit, wherein, an output terminal of the switch power supply circuit is connected with an input interface of weak current control chip and supplies power to the weak current control chip, an output interface of the weak current control chip is connected with a control signal input terminal of the strong current electric appliance operation control circuit, the switch power supply circuit and the strong current electric appliance operation control circuit are both disposed in an outdoor unit of an air conditioner, the weak current control chip is disposed in an indoor set of the air conditioner. Since the switch power supply circuit and the strong current electric appliance operation control circuit are both disposed in the outdoor unit , thereby reducing generation of electric sparks with sufficient intensity, and preventing combustion and blast danger possibly caused by leakage of the combustible refrigerant; what's more, since the indoor set adds a sensor detecting gas concentration of the combustible refrigerant, therefore, operation safety of the air conditioner in the utility model can be more comprehensively guaranteed.
Description
Technical field
The utility model relates to a kind of air-conditioner that uses combustible refrigerant.
Background technology
Because the agenda that HCFCs class cold-producing medium has been listed in restriction and eliminated by countries in the world, and transitional substitute R410A etc. since self environmental-protecting performance (the GWP value is higher, have greenhouse effects) undesirable, so be badly in need of seeking a kind of to natural environment and human nontoxic, be well positioned to meet the final substitute of air-conditioner system requirement again, present hydrocarbon class material (R290 (propane) etc.) can reach the requirement as desirable cold-producing medium substantially, but R290 (propane) belongs to inflammable class material, and its aerial burning Cmin value (LFL) mass ratio is 0.038kg/m at normal temperatures and pressures
3, in GB/T 7778-2008, belong to A3 class cold-producing medium.Must adopt special resist technology to guarantee being perfectly safe of user and surrounding enviroment so in the family expenses air-conditioning, use the cold-producing medium of A3 class.
In the prior art, the forceful electric power electric operation control circuit in the electric-control system of air-conditioner is located in the indoor set, is revealed the danger of burning, explode in the back thereby increased combustible refrigerant.
The utility model content
At the problem that exists in the correlation technique, the purpose of this utility model is to provide a kind of air-conditioner that uses combustible refrigerant, can effectively solve the security of operation problem that the leakage owing to combustible refrigerant causes.
For achieving the above object, the utility model provides a kind of air-conditioner that uses combustible refrigerant, has the light current of comprising control chip, forceful electric power electric operation control circuit, the electric-control system of switching power circuit, wherein, the output of switching power circuit is connected in the input interface of light current control chip and powers to the light current control chip, the output interface of light current control chip is connected with the control signal input of forceful electric power electric operation control circuit, switching power circuit and forceful electric power electric operation control circuit all are located in the off-premises station of air-conditioner, and the light current control chip is located in the indoor machine of air-conditioner.
Preferably, switching power circuit comprises mu balanced circuit, holding circuit and the linear transformer or the switching power source chip that are connected with holding circuit with mu balanced circuit, to provide stable low-voltage dc power supply to the light current control chip.
Preferably, electric-control system also comprises the sensor of being located in the indoor set, be used for the combustible refrigerant gas concentration of detection of leaks in the surrounding environment of indoor set, wherein, at the air-conditioner run duration, the light current control chip judges whether the detected value of sensor exports the control signal of the power supply of closing air-conditioner with decision.
Preferably, sensor is located at the air outlet place of indoor set.
Preferably, before air-conditioner start and after shutting down, whether the real-time detected value that the light current control chip is judged sensor determine output alarm signal.
Preferably, forceful electric power electric operation control circuit is by relay control compressor and outdoor fan, and wherein, compressor, outdoor fan, relay all are located in the off-premises station.
Preferably, the blower fan in the indoor set is an explosion-proof fan.
Preferably, low-voltage dc power supply is 12v.
Preferably, combustible refrigerant is propane or the mix refrigerant that comprises propane.
Preferably, air-conditioner is the splitting heat pump air conditioner device.
The beneficial effects of the utility model: in indoor set, be provided with the heavy-current control part than prior art, the utility model all is arranged at switching power circuit and forceful electric power electric operation control circuit in the off-premises station, thereby can reduce the electric spark that produces sufficient intensity, avoid combustible refrigerant to reveal the danger of the contingent burning in back, blast;
Moreover, because indoor set increases the sensor that detects the combustible refrigerant gas concentration, the combustible refrigerant gas concentration in the indoor set surrounding environment is revealed in monitoring in real time, in case concentration near or reach early warning value, alarm user at once, and cut off the air-conditioning power supply automatically, also detect the situation of change of the combustible refrigerant gas concentration around the indoor set before start at ordinary times and after shutting down in real time, so the utility model has guaranteed the security of operation of the air-conditioner of use combustible refrigerant more comprehensively and utterly;
Further, the blower fan of indoor set and other electric components all adopt the explosion-proof type device, strengthen the antistatic design, can reduce or stop to produce the security of operation of electric spark assurance the utility model air-conditioner of sufficient intensity to greatest extent.
Description of drawings
Fig. 1 is the structured flowchart of electric-control system in the prior art air-conditioner, and wherein switching power circuit is located in the indoor set;
Fig. 2 is the structured flowchart of electric-control system in the utility model air-conditioner, and wherein switching power circuit is located in the off-premises station.
The specific embodiment
As Fig. 1, the air-conditioner of prior art is described, the electric-control system of air-conditioner comprises switching power circuit 1, light current control chip 2, forceful electric power electric operation control circuit 3 in the prior art, wherein, switching power circuit 1 to light current control chip 2 provide low-voltage dc power supply and and light current control chip 2 be located in the indoor machine of air-conditioner jointly, and forceful electric power electric operation control circuit 3 is located in the off-premises station of air-conditioner.Also illustrate among Fig. 1, light current control chip 2 also disposes display module 5 and remote-control communication module 6, display module 5 is to show the operational mode of air-conditioner and the set information of state and explicit user, and obviously, display module 5 and remote-control communication module 6 all are located in the indoor set.Remote-control communication module 6 is to receive to come from the control of remote controller signal, and signal is passed to light current control chip 2.Also show switching power circuit 1 among Fig. 1 and comprise mu balanced circuit 101, holding circuit 103 and the linear transformer 102 ' or the switching power source chip 103 that are connected with holding circuit 103 with mu balanced circuit 101; mu balanced circuit 101 (can use the components and parts of pressure stabilization function to replace); be that the signal of telecommunication from power supply (for example, civil power 220v/50Hz) is carried out filtering, voltage stabilizing processing.Holding circuit module 302 (can use the components and parts of pressure limiting effect to replace) is the damage that protection subsequent conditioning circuit or components and parts are avoided high-tension impact, minimizing components and parts.
Referring to Fig. 2 the utility model air-conditioner is described, the utility model uses the air-conditioner of combustible refrigerant to have electric-control system, prior art than aforesaid Fig. 1 representative, the electric-control system of the utility model air-conditioner is except comprising switching power circuit 1, light current control chip 2, forceful electric power electric operation control circuit 3, also comprise sensor 4, this sensor 4 is located at and is used for the combustible refrigerant gas concentration of detection of leaks in the surrounding environment of indoor set in the indoor set.
Continuation is referring to Fig. 2, in more detail, the output of switching power circuit 1 is connected in the input interface of light current control chip 2 and powers to light current control chip 2, the output interface of light current control chip 2 is connected with the control signal input of forceful electric power electric operation control circuit 3, and switching power circuit 1 and forceful electric power electric operation control circuit 3 all are located in the off-premises station of air-conditioner, and light current control chip 2 is located in the indoor machine of air-conditioner.With regard to forceful electric power electric operation control circuit 3, it is by relay control compressor and outdoor fan, and wherein, compressor, outdoor fan, relay all are located in the off-premises station of air-conditioner.
Described identical referring to Fig. 1; switching power circuit 1 comprises mu balanced circuit 101, holding circuit 103 and the linear transformer 102 ' or the switching power source chip 102 that are connected with holding circuit 103 with mu balanced circuit 101, and switching power circuit 1 provides stable low-voltage dc power supply (present embodiment mesolow dc source is 12v) to light current control chip 2 by this.
Corresponding with the sensor 4 shown in Fig. 2, at the air-conditioner run duration, light current control chip 2 judges whether the detected value of sensor 4 exports the control signal of the power supply of closing air-conditioner with decision, particularly, when the detected value of sensor 4 (for example reaches predetermined value, the aerial burning Cmin of combustible refrigerant value) light current control chip 2 sends the control signal of closing the air-conditioner power supply time, if do not reach predetermined value then continue the detected value of receiving sensor 4, obviously, above-mentioned functions can realize by program.As optimal way, sensor 4 is located at the air outlet place of indoor set.
Further; before the air-conditioner start and after shutting down; whether the real-time detected value that light current control chip 2 is judged sensor 4 determine output alarm signal (can be described as standby function on duty); when reaching the predetermined value warning otherwise the detection signal of continuation receiving sensor 4; obviously, standby function on duty can realize by program.
By this, not only all heavy-current control parts of air-conditioner are all transferred in the off-premises station, and in indoor set, increased detection combustible refrigerant gas concentration detecting sensor, and cooperating by light current control chip 2 and sensor, selectively control closing of air-conditioner power supply, thereby the utility model has prevented to use the security of operation problem of the air-conditioner of combustible refrigerant effectively.
Continuation is referring to Fig. 2, and is similar to Fig. 1, and light current control chip 2 also disposes display module 5 (such as display screen) and remote-control communication module 6, and the two all is located in the indoor set and belongs to the light current device.In this embodiment, light current control chip 2 can be 16 single-chip microcomputer R5F212A7SNFA of high-performance of for example RENESAS company.
In addition, the utility model air-conditioner is the splitting heat pump air conditioner device, not only has the branch of indoor set and off-premises station, and can heat and freeze.The blower fan of indoor set and other electric components all adopt the explosion-proof type device, strengthen the antistatic design, can reduce or stop to produce the electric spark of sufficient intensity so to greatest extent, farthest avoid combustible refrigerant to reveal the danger of the contingent burning in back, blast.In the utility model combustible refrigerant can be propane (R290), iso-butane (R600a), etc. similar substance, as preferably, combustible refrigerant is propane or the mix refrigerant that comprises propane.Switching power source chip can be sell on the market in order to replace the chip of linear adaptation device, this chip is integrated MOSFET pipe, PWM control, high voltage startup, overcurrent and overheating protection circuit.In addition, described switching power circuit is a prior art, for example discloses " switching power circuit that is used for air-conditioner " in publication number is 2859926 Chinese patent application, and it has further detailed description to switching power circuit.
In the utility model, forceful electric power electrical equipment and light current device are divided according to following condition, when the aerial concentration of combustible refrigerant reaches burning Cmin value, the electric spark that its operating voltage can produce sufficient intensity is a forceful electric power electrical equipment with what light combustible refrigerant, otherwise is the light current device.In more detail, in field of air conditioning, operating voltage is 36V, 24V, 12V, 5V's (or 5v is following) is the light current device, operating voltage be 380v, 220v (or 220v-380v) for forceful electric power electrical equipment, correspondingly, forceful electric power electric operation control circuit is meant the control circuit of control example such as above-mentioned forceful electric power electrical equipment in the utility model, and the light current control chip belongs to the light current device, and the stable low-voltage dc power supply of 12v is provided to the light current control chip in the present embodiment.
To sum up, describe the beneficial effects of the utility model in more detail: switching power circuit and forceful electric power electric operation control circuit all are located in the off-premises station, this can reduce the electric spark that produces sufficient intensity, avoids combustible refrigerant to reveal the danger of the contingent burning in back, blast; Because indoor set increases the sensor that detects the combustible refrigerant gas concentration, the combustible refrigerant gas concentration in the indoor set surrounding environment is revealed in monitoring in real time, in case concentration near or reach early warning value, alarm user at once, and cut off the air-conditioning power supply automatically, also detect the situation of change of the combustible refrigerant gas concentration around the indoor set before start at ordinary times and after shutting down in real time, so the utility model has guaranteed the security of operation of the air-conditioner of use combustible refrigerant more comprehensively and utterly; Further, the blower fan of indoor set and other electric components all adopt the explosion-proof type device, strengthen the antistatic design, can reduce or stop to produce the security of operation of electric spark assurance the utility model air-conditioner of sufficient intensity to greatest extent.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. an air-conditioner that uses combustible refrigerant has the electric-control system that comprises light current control chip (2), forceful electric power electric operation control circuit (3), switching power circuit (1),
Wherein, the output of described switching power circuit (1) is connected in the input interface of described light current control chip (2) and powers to described light current control chip (2), the output interface of described light current control chip (2) is connected with the control signal input of described forceful electric power electric operation control circuit (3)
It is characterized in that described switching power circuit (1) and forceful electric power electric operation control circuit (3) all are located in the off-premises station of described air-conditioner, described light current control chip (2) is located in the described indoor machine of air-conditioner.
2. the air-conditioner of use combustible refrigerant according to claim 1; it is characterized in that; described switching power circuit (1) comprises mu balanced circuit (101), holding circuit (103) and the linear transformer (102 ') or the switching power source chip (102) that are connected with holding circuit (103) with described mu balanced circuit (101), to provide stable low-voltage dc power supply to described light current control chip (2).
3. the air-conditioner of use combustible refrigerant according to claim 2, it is characterized in that, described electric-control system also comprises sensor (4), this sensor (4) is located at and is used for the combustible refrigerant gas concentration of detection of leaks in the surrounding environment of indoor set in the indoor set, and described sensor (4) is located at the air outlet place of described indoor set.
4. the air-conditioner of use combustible refrigerant according to claim 3, it is characterized in that, described forceful electric power electric operation control circuit (3) is by relay control compressor and outdoor fan, and wherein, described compressor, outdoor fan, relay all are located in the described off-premises station.
5. the air-conditioner of use combustible refrigerant according to claim 4 is characterized in that, the blower fan in the described indoor set is an explosion-proof fan.
6. the air-conditioner of use combustible refrigerant according to claim 2 is characterized in that, described low-voltage dc power supply is 12v.
7. according to the air-conditioner of each described use combustible refrigerant among the claim 1-6, it is characterized in that described combustible refrigerant is a propane.
8. according to the air-conditioner of each described use combustible refrigerant among the claim 1-6, it is characterized in that described air-conditioner is the splitting heat pump air conditioner device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202503375U CN201875842U (en) | 2010-07-07 | 2010-07-07 | Air conditioner using combustible refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202503375U CN201875842U (en) | 2010-07-07 | 2010-07-07 | Air conditioner using combustible refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875842U true CN201875842U (en) | 2011-06-22 |
Family
ID=44163759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202503375U Expired - Lifetime CN201875842U (en) | 2010-07-07 | 2010-07-07 | Air conditioner using combustible refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875842U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2589900A1 (en) | 2010-07-02 | 2013-05-08 | Panasonic Corporation | Air conditioner |
| CN103196184A (en) * | 2013-04-25 | 2013-07-10 | 广东志高空调有限公司 | Split-type explosion-proof air conditioner |
| CN103925682A (en) * | 2014-04-30 | 2014-07-16 | 珠海格力电器股份有限公司 | Switch control device and system |
| CN104089383A (en) * | 2014-07-04 | 2014-10-08 | 珠海格力电器股份有限公司 | Sensor mounting box, air conditioner leak hunting device and sensor |
| CN106133452A (en) * | 2014-02-25 | 2016-11-16 | 江森自控日立空调技术（香港）有限公司 | Air conditioner |
| CN107328022A (en) * | 2017-07-05 | 2017-11-07 | Tcl德龙家用电器（中山）有限公司 | The control method and mobile air-conditioner of mobile air-conditioner |
| CN110056946A (en) * | 2019-05-30 | 2019-07-26 | 广东美的制冷设备有限公司 | Air-conditioning system and indoor unit |
| CN110296465A (en) * | 2019-07-26 | 2019-10-01 | 芜湖美智空调设备有限公司 | Air conditioner |
| WO2020237862A1 (en) * | 2019-05-30 | 2020-12-03 | 芜湖美智空调设备有限公司 | Air conditioner |
-
2010
- 2010-07-07 CN CN2010202503375U patent/CN201875842U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2589900A1 (en) | 2010-07-02 | 2013-05-08 | Panasonic Corporation | Air conditioner |
| EP2589900A4 (en) * | 2010-07-02 | 2014-09-17 | Panasonic Corp | Air conditioner |
| CN103196184A (en) * | 2013-04-25 | 2013-07-10 | 广东志高空调有限公司 | Split-type explosion-proof air conditioner |
| CN106133452A (en) * | 2014-02-25 | 2016-11-16 | 江森自控日立空调技术（香港）有限公司 | Air conditioner |
| CN106133452B (en) * | 2014-02-25 | 2019-11-05 | 日立江森自控空调有限公司 | Air conditioner |
| CN103925682A (en) * | 2014-04-30 | 2014-07-16 | 珠海格力电器股份有限公司 | Switch control device and system |
| CN103925682B (en) * | 2014-04-30 | 2016-08-17 | 珠海格力电器股份有限公司 | Switch control device and system |
| CN104089383A (en) * | 2014-07-04 | 2014-10-08 | 珠海格力电器股份有限公司 | Sensor mounting box, air conditioner leak hunting device and sensor |
| CN107328022A (en) * | 2017-07-05 | 2017-11-07 | Tcl德龙家用电器（中山）有限公司 | The control method and mobile air-conditioner of mobile air-conditioner |
| CN110056946A (en) * | 2019-05-30 | 2019-07-26 | 广东美的制冷设备有限公司 | Air-conditioning system and indoor unit |
| WO2020237862A1 (en) * | 2019-05-30 | 2020-12-03 | 芜湖美智空调设备有限公司 | Air conditioner |
| CN110296465A (en) * | 2019-07-26 | 2019-10-01 | 芜湖美智空调设备有限公司 | Air conditioner |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
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| CX01 | Expiry of patent term |