CN204063705U - A kind of electric automobile heat-pump air-conditioning system - Google Patents
A kind of electric automobile heat-pump air-conditioning system Download PDFInfo
- Publication number
- CN204063705U CN204063705U CN201420030699.1U CN201420030699U CN204063705U CN 204063705 U CN204063705 U CN 204063705U CN 201420030699 U CN201420030699 U CN 201420030699U CN 204063705 U CN204063705 U CN 204063705U
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- Prior art keywords
- heat exchanger
- car
- expansion valve
- heating power
- power expansion
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- 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.)
- Expired - Lifetime
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 238000005057 refrigeration Methods 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses a kind of electric automobile heat-pump air-conditioning system, belong to steam compression type refrigerating technical field, be applicable to the electric automobile of various configuration heat pump type air conditioning system.Mainly to comprise in compressor (4) cross valve 2, car external heat exchanger 3, two-way heating power expansion valve 4, car in heat exchanger (A) 5, car the parts such as heat exchanger (B) 6, it is characterized in that it is positioned between car external heat exchanger 3 and car heat exchanger (B) 6 with the restricting element of a two-way heating power expansion valve 4 as electric automobile heat-pump air-conditioning system.Two-way heating power expansion valve 4 is by the size of the acquisition system return-air degree of superheat, self regulating valve mouth aperture size, cooling system agent flux also changes thereupon, system heat exchanger is made (to be heat exchanger (B) 6 in car during refrigeration, be car external heat exchanger 3 when heating) disengagement area be fully utilized, thus make system play best efficiency, there is the advantages such as cost is low, system architecture is compact, dependable performance.
Description
Technical field
The utility model relates to a kind of heat pump type air conditioning system, belongs to steam compression type refrigerating technical field, is applicable to the electric automobile of various configuration heat pump type air conditioning system.
Background technology
The research and development of appearance to electric automobile air conditioner of electric automobile propose new problem and challenge.Owing to being subject to the impact of electric automobile uniqueness, there is no engine as the power source of compressor of air conditioner, the thermal source that air conditioning for automobiles heats winter can not be provided as, domestic automobile producer just carries out part and replaces design from the basis of conventional fuel oil air conditioning for automobiles, the compressor that fuel engines drives is replaced to the compressor of direct current generator Direct driver, corresponding change in control, has carried out the function of air conditioner refrigerating, replaces the refrigeration problem that design effect can solve electric automobile air conditioner substantially at present.The waste heat produced owing to not having fuel engines, heat-production functions domestic manufacturer mainly adopts PTC heating and electrothermal tube heating at present, though these heating modes can meet heating effect, but these heating modes are all consume the battery electric energy on electric automobile, heating efficiency is relatively low, affects the mileages of continuation of electric automobile.
A set of heat pump type air conditioning system that certain company external develops is one of representative electric automobile air-conditioning system.As shown in Figure 1, cooling condition circulation is: by compressor 1 through cross valve 2 to car external heat exchanger 3 (being now used as condenser), then compressor 1 got back to by heat exchanger (A) 6 in electric expansion valve (B) 5, car.Heating condition circulation is: by compressor 1 heat exchanger (B) 7 in cross valve 2 to car, then gets back to compressor 1 through electric expansion valve (A) 4, car external heat exchanger 3 (being now used as evaporimeter).When system is run with defrosting/dehumidification mode, cold-producing medium will through all 3 heat exchangers, air is dehumidified by heat exchanger (A) 6 in car, cool air to the temperature required for defrosting, heated by heat exchanger (B) 7 in car again, then it is delivered to car room, solve the problem of vehicle security drive.Although system solves the problem heat pump type air conditioning system refrigeration and heat two large problems, but there is system complexity, cost is high, the shortcomings such as performance is unreliable, for realizing heat pump air conditioner refrigeration, heat two large functions, need configuration two electric expansion valves, high expensive, electric expansion valve is as an executing agency simultaneously, need for it configures controller and the sensor providing signal, because automobile environment for use is complicated and changeable and the driving habits of driver is different, the algorithm of controller is very complicated, the operating condition of actual air-conditioning and design conditions are difficult to fit like a glove, actual operation of air conditioner usefulness greatly reduces.
Summary of the invention
The object of electric automobile heat-pump air-conditioning system described in the utility model is just to solve the problem and deficiency, and provide a kind of novel heat pump type air conditioning system, its compact conformation, cost is low, dependable performance, can be widely used in electric automobile heat-pump air-conditioning system field.
Electric automobile heat-pump air-conditioning system of the present utility model, mainly comprise heat exchanger, cross valve, magnetic valve, gas-liquid separator, two-way heating power expansion valve etc. in compressor, car external heat exchanger, two cars, it is characterized in that: with the restricting element of a two-way heating power expansion valve as electric automobile heat-pump air-conditioning system.
Two-way heating power expansion valve is in car external heat exchanger and a car between heat exchanger, and refrigeration import is connected with car external heat exchanger by tube connector, and heat import and be connected with heat exchanger in a car by tube connector, outer balance pipe and temperature-sensitive bag are connected with tube connector.Air-conditioning system refrigeration or when heating work, two-way heating power expansion valve is by the size of the acquisition system return-air degree of superheat, in automatic adjustment car, the liquid supply rate of heat exchanger or car external heat exchanger (is heat exchanger in a car during refrigeration, be car external heat exchanger when heating), thus realize air-conditioning system refrigeration or heat-production functions, and each parts of air-conditioning system are made to play best efficiency.
The utility model compared with prior art, has the following advantages and good effect:
Existing electric automobile heat-pump air-conditioning system adopts electric expansion valve as restricting element, air-conditioning system refrigeration or when heating work each independent configuration electric expansion valve as restricting element, the control signal that electric expansion valve sends by accepting system, the aperture size of regulating valve, thus the automatic adjustment realizing heat exchanger liquid supply rate.Electric expansion valve is desirable restricting element in theory, but itself be only a kind of motor valve, do not possess the function gathering back pressure and suction temperature signal, more do not possess the function of flow automatic regulation, electric expansion valve places one's entire reliance upon temperature sensors of high precision, pressure sensor, high-precision controller and reasonably control model, and the exploitation of high-precision controller car external environment temperature faced by electric automobile heat-pump air-conditioning system, operating frequency, the intersection of the shwoot gas proportion in throttling process and car internal loading changes the numerous match point formed, not only the cycle is long, under the condition substituting pressure sensor with temperature sensor, develop high-precision controller very difficult especially, even if succeed in developing, automobile environment for use driving habits complicated and changeable and driver is different, air-conditioning system cannot work completely under design conditions, system effectiveness reduces.
The utility model adopts the restricting element of two-way heating power expansion valve as electric automobile heat-pump air-conditioning system being taken charge of independent development by me.Heating power expansion valve gathers the independently motor valve feeding back to atmospheric pressure and suction temperature signal after centralized procurement integrates back pressure and suction temperature signal-Flow-rate adjustment-adjustment, it is a kind of restricting element according to return-air degree of superheat change adjust flux, namely all can according to evaporator evaporation amount change flow automatic regulation under any operating mode, frequency, loading condiction, there is intelligent self-adapting regulatory function, do not need to configure any electric control element or sensor.The two-way heating power expansion valve of our company's independent development is except possessing conventional heat expansion valve function, have two-way circulate, the function such as cooling and warming flow equilibrium, thus solve electric automobile heat-pump air-conditioning system refrigeration or different flow demand when heating, electric automobile heat-pump air-conditioning system is made to use heating power expansion valve to become possibility, and the controller replacing two electric expansion valves with a two-way heating power expansion valve and use electric expansion valve to configure and sensor, the advantages such as tool cost is low, system architecture is compact, dependable performance.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is that oneself knows a kind of structure chart of electric automobile heat-pump air-conditioning system;
Heat exchanger (B) in heat exchanger (A), 7-car in 1-compressor, 2-cross valve, 3-car external heat exchanger, 4-electric expansion valve (A), 5-electric expansion valve (B), 6-car
Fig. 2 is the structure chart of electric automobile heat-pump air-conditioning system of the present utility model.
Heat exchanger (B), 7-tube connector (A), 8-tube connector (B), 9-tube connector (C), 41-two-way heating power expansion valve outer balance pipe, 42-two-way heating power expansion valve temperature-sensing pipe in heat exchanger (A), 6-car in 1-compressor, 2-cross valve, 3-car external heat exchanger, 4-two-way heating power expansion valve, 5-car
Detailed description of the invention
The utility model is primarily of compressor 1, cross valve 2, car external heat exchanger 3, two-way heating power expansion valve 4, heat exchanger (A) 5 in car, composition such as heat exchanger (B) 6 grade in car, two-way heating power expansion valve 4 is positioned between car external heat exchanger 3 and car heat exchanger (B) 6, the H interface of two-way heating power expansion valve 4 is connected with tube connector (A) 7, tube connector (A) 7 is connected with heat exchanger in car (B) 6 again, the C interface of two-way heating power expansion valve 4 is connected with tube connector (B) 8, tube connector (B) 8 is connected with car external heat exchanger 3 again, two-way heating power expansion valve outer balance pipe 41 is connected with tube connector (C) 9, two-way heating power expansion valve temperature-sensing pipe 42 contacts with tube connector (C) 9 and ties up.
Operation principle is as follows:
When heat pump type air conditioning system works, as shown in Figure 2, cooling condition circulation is: by compressor 1 through cross valve 2 to car external heat exchanger 3 (being now used as condenser), then heat exchanger (B) 6, cross valve 2 get back to compressor 1 in two-way heating power expansion valve 4, car.Heating condition circulation is: by compressor 1 heat exchanger (B) 6 in cross valve 2 to car, then gets back to compressor 1 through two-way heating power expansion valve 4, car external heat exchanger 3 (being now used as evaporimeter), cross valve 2.When system is run with defrosting/dehumidification mode, cold-producing medium will through all 3 heat exchangers, air is dehumidified by heat exchanger (A) 5 in car, cool air to the temperature required for defrosting, heated by heat exchanger (B) 6 in car again, then it is delivered to car room, solve the problem of vehicle security drive.
When heat pump type air conditioning system refrigeration or when heating work, two-way heating power expansion valve 4 is connected with tube connector (C) 9 by two-way heating power expansion valve outer balance pipe 41, the pressure signal of acquisition system return-air, two-way heating power expansion valve 4 is contacted with tube connector (C) 9 by two-way heating power expansion valve temperature-sensing pipe 42 and ties up, the temperature signal of acquisition system return-air, system return air pressure signal and system return air temperature signal synthesize the system return air degree of superheat, two-way heating power expansion valve 4 is by the size of the acquisition system return-air degree of superheat, self regulating valve mouth aperture size, cooling system agent flux also changes thereupon, system heat exchanger is made (to be heat exchanger (B) 6 in car during refrigeration, be car external heat exchanger 3 when heating) disengagement area be fully utilized, thus make system play best efficiency.When system condition, frequency, loading condiction change, the system return air degree of superheat also changes thereupon, the degree of superheat increases, valve port opening increases, and refrigerant flow increases, and the degree of superheat reduces, valve port opening reduces, refrigerant flow reduces, and two-way heating power expansion valve 4 is in the adjustment process of dynamic equilibrium all the time, carrys out the traffic demand of system under satisfied different operating mode, frequency, loading condiction.
Above example is the unrestricted the technical solution of the utility model in order to explanation only.Do not depart from any modification or partial replacement of the utility model spirit and scope, all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. an electric automobile heat-pump air-conditioning system, mainly comprise compressor (1), cross valve (2), car external heat exchanger (3), two-way heating power expansion valve (4), heat exchanger A (5) in car, the part such as heat exchanger B (6) in car, it is characterized in that being provided with a two-way heating power expansion valve (4) between heat exchanger B (6) in electric automobile heat-pump air-conditioning system car external heat exchanger (3) and car, the H interface of two-way heating power expansion valve (4) is connected with tube connector A (7), tube connector A (7) is connected with heat exchanger B (6) in car again, the C interface of two-way heating power expansion valve (4) is connected with tube connector B (8), tube connector B (8) is connected with car external heat exchanger (3) again, two-way heating power expansion valve outer balance pipe (41) is connected with tube connector C (9), two-way heating power expansion valve temperature-sensing pipe (42) contacts with tube connector C (9) and ties up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030699.1U CN204063705U (en) | 2014-01-16 | 2014-01-16 | A kind of electric automobile heat-pump air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030699.1U CN204063705U (en) | 2014-01-16 | 2014-01-16 | A kind of electric automobile heat-pump air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063705U true CN204063705U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420030699.1U Expired - Lifetime CN204063705U (en) | 2014-01-16 | 2014-01-16 | A kind of electric automobile heat-pump air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204063705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743168A (en) * | 2014-01-16 | 2014-04-23 | 浙江春晖智能控制股份有限公司 | Heat pump air-conditioning system for electric automobile |
-
2014
- 2014-01-16 CN CN201420030699.1U patent/CN204063705U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743168A (en) * | 2014-01-16 | 2014-04-23 | 浙江春晖智能控制股份有限公司 | Heat pump air-conditioning system for electric automobile |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |