CN204963326U - Defrosting structure under on -vehicle air conditioning system mode of heating - Google Patents
Defrosting structure under on -vehicle air conditioning system mode of heating Download PDFInfo
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- CN204963326U CN204963326U CN201520694913.8U CN201520694913U CN204963326U CN 204963326 U CN204963326 U CN 204963326U CN 201520694913 U CN201520694913 U CN 201520694913U CN 204963326 U CN204963326 U CN 204963326U
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Abstract
The utility model discloses a defrosting structure under on -vehicle air conditioning system mode of heating, including compressor, evaporimeter, condenser, other solenoid valve, electric check valve and thermostatic expansion valve, the export of compressor connects the condenser, and the export of condenser meets thermostatic expansion valve, and thermostatic expansion valve's export connects the evaporimeter, and the export of evaporimeter connects the entry of compressor, and other solenoid valve connects the export of compressor and the entry of evaporimeter, and electric check valve connects the export of compressor and the entry of condenser, when the temperature of evaporimeter was hanged down to the to set the temperature value, other solenoid valve opened, and electric check valve closes to block and heats the circulation simultaneously, lets in the evaporimeter defrosting with compressor exhaust high temperature and high pressure coolant gas. After the defrosting, other solenoid valve closes, and electric check valve opens, and the system recovery heats the operation. The utility model discloses utilizing compressor exhaust high temperature high -pressure gas to defrost to the evaporimeter, having very high efficiency, little to the refrigerating system influence, the energy consumption is low moreover.
Description
[technical field]
The utility model relates to on-board air conditioner, particularly relates to the defrosting structure under a kind of mounted air conditioner system heating mode.
[background technology]
When on-board air conditioner heating mode is opened, the outer evaporimeter heat absorption of car, car inner condenser dispels the heat.The startup of general heating mode, the outer temperature of car is all below 10 DEG C, and because the outer temperature of car is low, evaporimeter also needs to absorb heat, and evaporator body temperature can drop to below 0 DEG C of degree, and what the moisture around evaporimeter was very fast will condense into frost.
If defrosting can produce following adverse consequences not in time after on-board air conditioner frosting:
1, block the passage between evaporator fin, increase the resistance of air circulation, cause heat exchange resistance to increase, exchange capability of heat declines;
2, evaporating temperature declines, and Energy Efficiency Ratio reduces, and operation of air conditioner is worse off, until cisco unity malfunction;
3, the evaporation situation of cold-producing medium in evaporimeter weakens, and the cold-producing medium of incomplete evaporation is likely sucked by compressor and causes liquid hammer.
At present, the Defrost mode that on-board air conditioner major part is taked is time defrosting, namely (be generally 30-50 minute) after air-conditioning heating pattern opens a period of time, commutated by four-way change-over valve, become and heat as refrigeration, stop pressure fan work in car simultaneously, now the outer evaporimeter of car defrosts by dispelling the heat, and (is generally 5-15 minute) after a period of time, and system becomes refrigeration into heating, pressure fan in opening vehicle simultaneously, System recover heating mode.Time defrosting method often considers worst environmental condition when setting-up time, therefore under different environmental conditions, there will be unnecessary defrosting action, so just causes the waste of the energy.And the time of time defrosting method defrosting is relatively long, this impact normally run for mounted air conditioner system is larger.
[utility model content]
The technical problems to be solved in the utility model is to provide the defrosting structure under the mounted air conditioner system heating mode that a kind of time of defrosting is short, energy waste is few.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, defrosting structure under a kind of mounted air conditioner system heating mode, comprise compressor, evaporimeter, condenser, bypass solenoid valve, electric check valve and heating power expansion valve, the outlet of compressor connects condenser, the outlet of condenser connects heating power expansion valve, the outlet of heating power expansion valve connects evaporimeter, the outlet of evaporimeter connects the entrance of compressor, bypass solenoid valve connects the outlet of compressor and the entrance of evaporimeter, and electric check valve connects the outlet of compressor and the entrance of condenser.
Above-described defrosting structure, comprises defrost control circuit, and defrost control circuit comprises microcontroller, the temperature sensor detecting evaporimeter external temperature, driving circuit for electromagnetic valve and electric check valve drive circuit; The output termination microcontroller of temperature sensor, the control signal of microcontroller exports the control signal input of termination driving circuit for electromagnetic valve and electric check valve drive circuit, the input termination power of driving circuit for electromagnetic valve, export termination bypass solenoid valve, the input termination power of electric check valve drive circuit, exports termination stop valve drive motors.
Above-described defrosting structure, comprises gs-oil separator, gas-liquid separator and device for drying and filtering, and the outlet drying filter of condenser connects heating power expansion valve; The outlet of evaporimeter connects the entrance of compressor through gas-liquid separator, the outlet of compressor connects the entrance of bypass solenoid valve and the entrance of electric check valve through gs-oil separator.
The high temperature and high pressure gas that the utility model utilizes compressor to discharge defrosts to evaporimeter, and general needs several seconds to tens second time can defrost thoroughly, have very high efficiency, and little on refrigeration system impact.Because defrosting thermal source comes from compressor air-discharging, therefore also there is the low advantage of energy consumption.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the schematic diagram of the utility model embodiment defrosting structure.
Fig. 2 is the theory diagram of the utility model embodiment defrost control circuit.
[detailed description of the invention]
The principle of the defrosting structure under the utility model embodiment mounted air conditioner system heating mode as depicted in figs. 1 and 2, comprises compressor 1, evaporimeter 8, condenser 4, bypass solenoid valve 3, electric check valve 9, heating power expansion valve 7, gs-oil separator 2, gas-liquid separator 6, device for drying and filtering 5 and defrost control circuit.
The outlet of compressor 1 connects the entrance of bypass solenoid valve 3 and the entrance of electric check valve 9 through gs-oil separator 2.The outlet drying filter 5 of condenser 4 connects heating power expansion valve 7, and the outlet of heating power expansion valve 7 connects evaporimeter 8, and the outlet of evaporimeter 8 connects the entrance of compressor 1 through gas-liquid separator 6.
Bypass solenoid valve 3 connects the outlet of compressor 1 and the entrance of evaporimeter 8.
Electric check valve 9 connects the outlet of compressor 1 and the entrance of condenser 4.
Defrost control circuit comprises microcontroller, the temperature sensor detecting evaporimeter 8 external temperature, driving circuit for electromagnetic valve and electric check valve drive circuit.The output termination microcontroller of temperature sensor, the control signal of microcontroller exports the control signal input of termination driving circuit for electromagnetic valve and electric check valve drive circuit, the input termination power of driving circuit for electromagnetic valve, export termination bypass solenoid valve 3, the input termination power of electric check valve drive circuit, exports termination electric check valve 9.
Microcontroller is by the temperature of temperature sensor monitors evaporimeter 8, when the low temperature value to setting of the temperature of evaporimeter 8, microcontroller opens bypass solenoid valve 3 by driving circuit for electromagnetic valve, close electric check valve 9 by electric check valve drive circuit simultaneously, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged by after lubricating oil separation, enters evaporimeter 8 defrosting through gs-oil separator 2.The gas of refrigerant liquid after gas-liquid separator 6 carries out gas-liquid separation through evaporimeter 8 defrosting cooling is sucked by compressor 1.
After temperature sensor monitors terminates to defrosting, microcontroller cuts out bypass solenoid valve 3 by driving circuit for electromagnetic valve, open electric check valve 9 by electric check valve drive circuit simultaneously, cut off the passage of compressor 1 high-temperature high-pressure refrigerant gas to evaporimeter 8, open to the passage of condenser 4, mounted air conditioner system recovers heating operation.
The high temperature and high pressure gas that the above embodiment mounted air conditioner system of the utility model utilizes compressor to discharge defrosts to evaporimeter, and general needs several seconds to tens second time can defrost thoroughly, have very high efficiency, and little on refrigeration system impact.Because defrosting thermal source comes from compressor air-discharging, therefore also there is the low advantage of energy consumption.
Claims (3)
1. the defrosting structure under a mounted air conditioner system heating mode, comprise compressor, evaporimeter, condenser and heating power expansion valve, the outlet of compressor connects condenser, the outlet of condenser connects heating power expansion valve, and the outlet of heating power expansion valve connects evaporimeter, and the outlet of evaporimeter connects the entrance of compressor, it is characterized in that, comprise bypass solenoid valve and electric check valve, bypass solenoid valve connects the outlet of compressor and the entrance of evaporimeter, and electric check valve connects the outlet of compressor and the entrance of condenser.
2. defrosting structure according to claim 1, is characterized in that, comprises defrost control circuit, and defrost control circuit comprises microcontroller, the temperature sensor detecting evaporimeter external temperature, driving circuit for electromagnetic valve and electric check valve drive circuit; The output termination microcontroller of temperature sensor, the control signal of microcontroller exports the control signal input of termination driving circuit for electromagnetic valve and electric check valve drive circuit, the input termination power of driving circuit for electromagnetic valve, export termination bypass solenoid valve, the input termination power of electric check valve drive circuit, exports termination stop valve drive motors.
3. defrosting structure according to claim 1, is characterized in that, comprises gs-oil separator, gas-liquid separator and device for drying and filtering, and the outlet drying filter of condenser connects heating power expansion valve; The outlet of evaporimeter connects the entrance of compressor through gas-liquid separator, the outlet of compressor connects the entrance of bypass solenoid valve and the entrance of electric check valve through gs-oil separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694913.8U CN204963326U (en) | 2015-08-30 | 2015-08-30 | Defrosting structure under on -vehicle air conditioning system mode of heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694913.8U CN204963326U (en) | 2015-08-30 | 2015-08-30 | Defrosting structure under on -vehicle air conditioning system mode of heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204963326U true CN204963326U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520694913.8U Active CN204963326U (en) | 2015-08-30 | 2015-08-30 | Defrosting structure under on -vehicle air conditioning system mode of heating |
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| CN (1) | CN204963326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN108387033A (en) * | 2018-04-04 | 2018-08-10 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN112696743A (en) * | 2020-12-18 | 2021-04-23 | 广东申菱环境系统股份有限公司 | Dehumidifier and control method thereof |
-
2015
- 2015-08-30 CN CN201520694913.8U patent/CN204963326U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN108387033A (en) * | 2018-04-04 | 2018-08-10 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN112696743A (en) * | 2020-12-18 | 2021-04-23 | 广东申菱环境系统股份有限公司 | Dehumidifier and control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |