CN209365821U - A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant - Google Patents
A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant Download PDFInfo
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- CN209365821U CN209365821U CN201822196584.0U CN201822196584U CN209365821U CN 209365821 U CN209365821 U CN 209365821U CN 201822196584 U CN201822196584 U CN 201822196584U CN 209365821 U CN209365821 U CN 209365821U
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Abstract
The utility model discloses a kind of single system changes in temperature pure electric vehicle air-conditionings using R410a refrigerant, it is characterized by comprising air-conditioning system, the air-conditioning system includes compressor, condensation core, condensation fan, evaporation core body, evaporation fan, power module and electric-control system.The utility model uses R410a refrigerant, has the advantage that system pressure loss is few, temperature glide is small under extreme conditions, can play the heat exchange efficiency of refrigerant to greatest extent, effectively promotes unit performance and efficiency.The utility model high, better temperature and pressure integral sensor of sensitivity using acquisition precision; accurate pressure, temperature data can be acquired in unit running process; the important evidence adjusted as operating states of the units, it is ensured that unit operation optimization realizes energy-saving target to greatest extent.Electronic type temperature and pressure integral sensor adds the dual protection mechanism of mechanical relief valve, can effectively realize stoppage protection function when unit is abnormal situation.
Description
Technical field
The utility model belongs to electric air-conditioning field, and in particular to a kind of pure using the single system changes in temperature of R410a refrigerant
Electric air-conditioning.
Background technique
Under the energy-saving overall background of current pure electric coach, using electric power as the air-conditioning system of working energy, be all with
High-performance, low energy consumption, lightweight and it is reliable and secure be development goal, support the energy conservation and environmental protection of vehicle to require with this.Getting up early
New energy is all from domestic air conditioner with air-conditioning technical, although changes in temperature function may be implemented, the efficiency of auto air-con is always
It can not be compared with domestic air conditioner.To find out its cause, being vehicle thermic load operating condition with environment temperature, passengers quantity and use condition etc.
Factor influences to be in real-time change state, and the energy-consuming parts such as compressor, the blower of car air-conditioner need to be changed according to operating condition real-time
Adjust operating status.And room can be run with air conditioner under the environmental working condition of relative temperature, and influence factor is less, air-conditioning
Operating status it is also more stable, therefore it is higher relative to automobile-used pure electric vehicle air-conditioning efficiency, and energy-saving effect also becomes apparent from.How
How the operation reasonability for promoting car air-conditioner promotes unit operational energy efficiency and becomes car air-conditioner technology urgently to be resolved and ask
Topic.
Existing pure electric vehicle air-conditioning mostly uses R407c refrigerant, and refrigeration is i.e. by compressor work driving refrigerant in air-conditioning system
Circulation in system, interior heat is discharged outside vehicle；Heating form mainly has heat pump type heating and auxiliary hot two kinds of PTC electricity, both shapes
Formula can be separately configured according to the regional climate condition that vehicle uses, or configure in combination, to guarantee that vehicle normally takes
Warm demand.In addition, being limited to the small reason of electric scroll compressor discharge capacity, mostly used when air-conditioning system has High cooling power demand double
Compressor configuration, using pipe type heat exchanger effectively to solve the problems, such as condensation core defrosting when heat pump heating.When unit is run
Rely primarily on the state modulators compressor rotary speeds, electronics such as the collected compressor exhaust temperature of temperature sensor, inside and outside temperature
The operation of valve opening, condensation fan revolving speed component, the protective device of unit are two pressure switches, can be in system pressure exception
Timely stoppage protection.
Using the unit volume refrigerating capacity of R407c refrigerant pure electric vehicle air-conditioning system is low, low-temperature characteristics is poor, temperature glide is big
Etc. disadvantages.Especially under low-temperature condition, the thermal efficiency of R407c refrigerant can substantially decay, and not only directly affect unit heating performance,
And unit operational energy efficiency is also greatly reduced therewith.In addition, being adjusted due to acquiring various temperature parameters to unit dissipative cell
Section, and temperature parameter is larger by such environmental effects, and for acquisition precision there may be deviation, will also result in unit can not optimal shape again
It is run under state.
Utility model content
For above-mentioned the technical problems existing in the prior art, R410a is used the purpose of the utility model is to provide a kind of
The single system changes in temperature pure electric vehicle air-conditioning of refrigerant.
The purpose of this utility model is achieved through the following technical solutions.
A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant, including air-conditioning system, the air-conditioning system packet
Compressor, condensation core, condensation fan, evaporation core body, evaporation fan, power module and electric-control system are included, power module is sky
Adjusting system power supply；
Compressor passes sequentially through four-way valve and exhaust pipe and connect with condensation core；
Condensation core passes sequentially through device for drying and filtering, electric expansion valve and evaporation core body connect, electric expansion valve with it is automatically controlled
System connection；
Evaporation core body passes sequentially through four-way valve, gas-liquid separator and return-air pipe fitting and connect with compressor；
Temperature and pressure integral sensor I and mechanical relief valve I, I He of temperature and pressure integral sensor are provided on exhaust pipe
The upstream of four-way valve is arranged in mechanical relief valve I；
Temperature and pressure integral sensor II and mechanical relief valve II, temperature and pressure integral sensor II are provided on return-air pipe fitting
The downstream of four-way valve is set with mechanical relief valve II；
Temperature and pressure integral sensor I, mechanical relief valve I, temperature and pressure integral sensor II and mechanical relief valve II are
It is connect with electric-control system；
The refrigerant of air-conditioning system uses R410a refrigerant.
The air-conditioning system includes PTC electric heating, and PTC electric heating is set as two grades of power heating, PTC electric heating with it is automatically controlled
System connection.
The air-conditioning system includes new air door, and new air door is connect with electric-control system.
The compressor is set as DC frequency-changeable compressor.
The evaporation core body, evaporation fan, device for drying and filtering and electric expansion valve are disposed as two sets.
The downstream of the electric expansion valve is provided with temperature sensor I, and the downstream for condensing core is provided with temperature sensor
II, temperature sensor I and temperature sensor II are connect with electric-control system.
The air-conditioning system includes air outlet and return air inlet, is provided with leaving air temp sensor at air outlet, at return air inlet
It is provided with return air temperature sensor.
The air-conditioning system includes outdoor temperature sensor, and outdoor temperature sensor is arranged except air-conditioning system, outdoor
Temperature sensor is connect with electric-control system.
The utility model has the following beneficial effects: the utility model uses R410a refrigerant, freezing with same specification R407c is
System is compared, and the refrigeration performance under identical operating condition can be improved 30% or more, especially has system pressure loss under extreme conditions
Less, the small advantage of temperature glide can play the heat exchange efficiency of refrigerant to greatest extent, effectively promote unit performance and efficiency.Separately
Outside, the utility model can be adopted using acquisition precision height, the better temperature and pressure integral sensor of sensitivity in unit running process
Collect accurate pressure, temperature data, the important evidence adjusted as operating states of the units, it is ensured that unit operation optimization, it is maximum
Limit realizes energy-saving target.Electronic type temperature and pressure integral sensor adds the dual protection mechanism of mechanical relief valve, can
Effectively realize stoppage protection function when unit is abnormal situation.
Detailed description of the invention
Fig. 1 is the air-conditioning system structural plan of the utility model.
Fig. 2 is the air-conditioning system schematic diagram of the utility model.
In figure, 1 is compressor, and 2 be exhaust pipe, and 3 be four-way valve, and 4 be condensation core, and 5 be condensation fan, and 6 be drying
Filter, 7 be electric expansion valve, and 8 be evaporation core body, and 9 be PTC electric heating, and 10 be evaporation fan, and 11 be new air door, and 12 be electricity
Source module, 13 be electric-control system, and 14 be return-air pipe fitting, and 15 be gas-liquid separator, and 16 be temperature and pressure integral sensor I, and 17 be temperature
Integral sensor II is pressed, 18 be temperature sensor II, and 19 be temperature sensor I, and 20 be return air inlet, and 21 be leaving air temp sensing
Device, 22 be return air temperature sensor.
Specific embodiment
As shown in Fig. 1~2, a kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant, including air-conditioning system,
The refrigerant of air-conditioning system uses R410a refrigerant；Air-conditioning system includes compressor 1, condensation core 4, condensation fan 5, evaporation
Core 8, evaporation fan 10, power module 12 and electric-control system 13, power module 12 are air-conditioning system power supply；Compressor 1 is arranged
For DC frequency-changeable compressor, electric-control system 13 is used to control the starting and control of electrical equipment in air-conditioning system.
Compressor 1 passes sequentially through four-way valve 3 and exhaust pipe 2 and connect with condensation core 4；Condensation core 4 passes sequentially through
Device for drying and filtering 6, electric expansion valve 7 are connect with evaporation core body 8, and electric expansion valve 7 is connect with electric-control system 13；Evaporation core body 8
Four-way valve 3, gas-liquid separator 15 and return-air pipe fitting 14 is passed sequentially through to connect with compressor 1；Evaporation core body 8, evaporation fan 10,
Device for drying and filtering 6 and electric expansion valve 7 are disposed as two sets.
Temperature and pressure integral sensor I 16 and mechanical relief valve I, temperature and pressure integral sensor I are provided on exhaust pipe 2
16 and mechanical relief valve I upstream of four-way valve 3 is set；Temperature and pressure integral sensor I 16 is for detecting air-conditioning system exhaust
What the real-time pressure P1 and real time temperature T1 of refrigerant in pipe fitting 2, real-time pressure P1 and real time temperature T1 were measured is refrigerant respectively
High pressure and high temperature, as electric-control system 13 adjust 7 aperture of electric expansion valve foundation, mechanical relief valve I be used for exhaust
Pipe fitting 2 carries out pressure release.
Temperature and pressure integral sensor II 17 and mechanical relief valve II, temperature and pressure integral type sensing are provided on return-air pipe fitting 14
The downstream of four-way valve 3 is arranged in device II 17 and mechanical relief valve II；Temperature and pressure integral sensor II 17 is for detecting air-conditioning system
What the real-time pressure P2 and real time temperature T2 of refrigerant in system return-air pipe fitting 14, real-time pressure P2 and real time temperature T2 were measured is point
It is not the low pressure and low temperature of refrigerant, for being made a decision real-time Data Transmission to electric-control system 13 to the running environment of air-conditioning, machine
Tool formula relief valve II is used to carry out pressure release to return-air pipe fitting 14.
Electric-control system 13 carries out aperture regulation according to the electric expansion valve 7 of I 16 pairs of air-conditioning systems of temperature and pressure integral sensor,
Electric-control system 13 judges whether air-conditioning is in the running environment of low-pressure low-temperature according to temperature and pressure integral sensor II 17.
Temperature and pressure integral sensor I 16, mechanical relief valve I, temperature and pressure integral sensor II 17 and mechanical relief valve
II connect with electric-control system 13.
Air-conditioning system includes PTC electric heating 9, and PTC electric heating 9 is set as two grades of power heating, PTC electric heating 9 with it is automatically controlled
System 13 connects.
Air-conditioning system includes new air door 11, and new air door 11 is connect with electric-control system 13, and new air door 11 is provided with automatic mode
And manual mode, ventilation is aerated for being opened for car when air-conditioning system is run.
The downstream of electric expansion valve 7 is provided with temperature sensor I 19, and the downstream of condensation core 4 is provided with temperature sensor
II 18, temperature sensor I 19 and temperature sensor II 18 are connect with electric-control system 13, temperature sensor I 19 and temperature sensing
Device II 18 is respectively used to the downstream pipe fitting temperature of detection electric expansion valve 7 and the downstream pipe fitting temperature of condensation core 4, and will test
Temperature value uploads electric-control system 13.
Air-conditioning system includes air outlet and return air inlet 20, and leaving air temp sensor 21, return air inlet 20 are provided at air outlet
Place is provided with return air temperature sensor 22.
Air-conditioning system includes outdoor temperature sensor, and outdoor temperature sensor is arranged except air-conditioning system, outdoor temperature
Sensor will test data and be transferred to electric-control system 13, outdoor temperature sensor and automatically controlled system for the temperature outside sensing chamber
13 connection of system.
The working principle of the utility model are as follows: when air conditioner refrigerating is run, electric-control system 13 is powered on, and condensation fan 5 opens in advance
Compressor 1, evaporation fan 10 start after dynamic operation 30 seconds, and refrigerant gas is after the compression of compressor 1 by exhaust pipe at this time
Part 2 and four-way valve 3 enter condensation core 4, are condensed into liquid system after carrying out heat exchange with outside air under the effect of condensation fan 5
Cryogen, liquid refrigerant respectively enter two sides evaporating chamber by two dispenser connecting tubes, pass through after device for drying and filtering 6 is dry
It is converted into vapour-liquid mixed state refrigerant after the throttling of electric expansion valve 7 and enters evaporation core body 8, under the effect of evaporation fan 10, system
Evaporating completely is at refrigerant vapour after cryogen and in-vehicle air carry out heat exchange, while taking away in-vehicle air heat, gaseous refrigerant
Agent cooled via return air pipe fitting 14, four-way valve 3, gas-liquid separator 15 are eventually returned to compressor 1, complete primary coolant circulation.
When air-conditioning heating is run, electric-control system 13, four-way valve 3 are powered on, compressor 1 after condensation fan 5 starts 30 seconds in advance
Starting operation, evaporation fan 10 is based on anti-cold wind logic and starts after compressor 1 is run 60 seconds, at this time after the compression of compressor 1
The high temperature and high pressure gaseous refrigerant of generation first passes through four-way valve 3 and enters evaporation core body 8, under the action of evaporation fan 10 and interior
Cold air is condensed into liquid refrigerant after carrying out heat exchange, and liquid refrigerant is converted into vapour under 7 throttling action of electric expansion valve
Liquid mix refrigerant enters condensation core 4 after device for drying and filtering 6 is dry, under the action of condensation fan 5, with outside air
It completes to flash to refrigerant vapour after carrying out heat exchange, refrigerant vapour is by condensation muffler part 14, four-way valve 3, gas-liquid
Separator 15 is eventually returned to compressor 1, completes primary heat pump heating circulation.
When air-conditioning heating is run, PTC electric heating 9 can be according to outdoor temperature sensor, leaving air temp sensor 21 and return air
It is automatic to control PTC electric heating 9 by electric-control system 13 for the variation of outdoor temperature and vehicle interior temperature that temperature sensor 22 detects
It opens and closes, to supplement heating capacity of the heat pump air conditioner under extreme low temperature operating condition, it is ensured that vehicle heating rate and comfort.
New air door 11 can at any time in automatic mode or manual mode is opened for car and is aerated ventilation in operation of air conditioner.
Electric-control system 13 is adjusted according to the data of temperature and pressure integral sensor I 16 on exhaust pipe 2 as electric expansion valve 7
When aperture, working principle is as follows:
I 16 He of temperature and pressure integral sensor of real-time detection refrigerant temperature and system pressure is provided on exhaust pipe 2
Mechanical relief valve I.Collected data are transferred to electric-control system 13 by temperature and pressure integral sensor I 16, and electric-control system 13
It is adjusted according to the open degree of data control electric expansion valve 7, the temperature parameter that temperature and pressure integral sensor I 16 acquires is electronic expansion
The open degree of valve 7 adjusts main foundation, confirms system fortune by the difference of comparison 1 discharge superheat of compressor and target temperature value
Whether row state is optimal.
The collected real-time pressure of temperature and pressure integral sensor I 16 on exhaust pipe 2 is P I, real time temperature is T I, right
The saturation temperature for answering refrigerant under I pressure of P is T II, I-T II of discharge superheat Δ T=T, with the preset target temperature of Δ T
Value T is compared, and as Δ T<T, electric-control system 13 controls 7 aperture of electric expansion valve and turns down, as Δ T>T, electric-control system 13
Control 7 aperture of electric expansion valve tunes up, and as Δ T=T, electric-control system 13 maintains 7 aperture of electric expansion valve constant, is realized with this
Accurate control to electric expansion valve, it is ensured that the optimum cycle of air-conditioning system refrigerant flow.
In addition, temperature and pressure integral sensor I and temperature and pressure integral sensor II have air-conditioning system defencive function, work as temperature and pressure
Integral sensor I or temperature and pressure integral sensor II detect that air-conditioning system pressure is higher or lower than the protection pressure value of setting
When, temperature and pressure integral sensor I or temperature and pressure integral sensor II can issue stoppage protection signal to electric-control system 13 immediately, keep away
Exempt from air-conditioning system causes air-conditioning system components to be damaged extremely.
Other technologies are referring to the prior art.
The above is only preferred embodiments of the present invention, is not the limit to technical solutions of the utility model
It is fixed, it is noted that those skilled in the art can also make further under the premise of technical solutions of the utility model
Improvement and change, these improvement and change should all be covered within the protection scope of the present utility model.
Claims (8)
1. a kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant, it is characterised in that: described including air-conditioning system
Air-conditioning system includes compressor (1), condensation core (4), condensation fan (5), evaporation core body (8), evaporation fan (10), power supply mould
Block (12) and electric-control system (13), power module (12) are air-conditioning system power supply；
Compressor (1) passes sequentially through four-way valve (3) and exhaust pipe (2) and connect with condensation core (4)；
Core (4) pass sequentially through device for drying and filtering (6), electric expansion valve (7) is connect with evaporation core body (8), electronic expansion for condensation
Valve (7) is connect with electric-control system (13)；
Evaporation core body (8) passes sequentially through four-way valve (3), gas-liquid separator (15) and return-air pipe fitting (14) and compressor (1) even
It connects；
Temperature and pressure integral sensor I (16) and mechanical relief valve I, temperature and pressure integral sensor I are provided on exhaust pipe (2)
(16) it is arranged with mechanical relief valve I in the upstream of four-way valve (3)；
Temperature and pressure integral sensor II (17) and mechanical relief valve II, temperature and pressure integral type sensing are provided on return-air pipe fitting (14)
Device II (17) and mechanical relief valve II are arranged in the downstream of four-way valve (3)；
Temperature and pressure integral sensor I (16), mechanical relief valve I, temperature and pressure integral sensor II (17) and mechanical relief valve
II connect with electric-control system (13)；
The refrigerant of air-conditioning system uses R410a refrigerant.
2. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
Stating air-conditioning system includes PTC electric heating (9), and PTC electric heating (9) is set as two grades of power heating, PTC electric heating (9) with it is automatically controlled
System (13) connection.
3. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
Stating air-conditioning system includes new air door (11), and new air door (11) connect with electric-control system (13).
4. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
It states compressor (1) and is set as DC frequency-changeable compressor.
5. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
It states evaporation core body (8), evaporation fan (10), device for drying and filtering (6) and electric expansion valve (7) and is disposed as two sets.
6. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
The downstream for stating electric expansion valve (7) is provided with temperature sensor I (19), and the downstream of condensation core (4) is provided with temperature sensor
II (18), temperature sensor I (19) and temperature sensor II (18) are connect with electric-control system (13).
7. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
Stating air-conditioning system includes air outlet and return air inlet (20), is provided at air outlet leaving air temp sensor (21), return air inlet (20)
Place is provided with return air temperature sensor (22).
8. the single system changes in temperature pure electric vehicle air-conditioning according to claim 1 using R410a refrigerant, it is characterised in that: institute
Stating air-conditioning system includes outdoor temperature sensor, and outdoor temperature sensor is arranged except air-conditioning system, outdoor temperature sensor
It is connect with electric-control system (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196584.0U CN209365821U (en) | 2018-12-26 | 2018-12-26 | A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196584.0U CN209365821U (en) | 2018-12-26 | 2018-12-26 | A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant |
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| CN209365821U true CN209365821U (en) | 2019-09-10 |
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| CN201822196584.0U Active CN209365821U (en) | 2018-12-26 | 2018-12-26 | A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624654A (en) * | 2018-12-26 | 2019-04-16 | 郑州科林车用空调有限公司 | A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant |
| CN112519532A (en) * | 2020-12-02 | 2021-03-19 | 安徽江淮汽车集团股份有限公司 | Heat pump system diagnosis control method and device |
-
2018
- 2018-12-26 CN CN201822196584.0U patent/CN209365821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624654A (en) * | 2018-12-26 | 2019-04-16 | 郑州科林车用空调有限公司 | A kind of single system changes in temperature pure electric vehicle air-conditioning using R410a refrigerant |
| CN112519532A (en) * | 2020-12-02 | 2021-03-19 | 安徽江淮汽车集团股份有限公司 | Heat pump system diagnosis control method and device |
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