CN209607878U - A kind of electric automobile lithium battery heat management system based on heat pump air conditioner - Google Patents
A kind of electric automobile lithium battery heat management system based on heat pump air conditioner Download PDFInfo
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- CN209607878U CN209607878U CN201920569351.2U CN201920569351U CN209607878U CN 209607878 U CN209607878 U CN 209607878U CN 201920569351 U CN201920569351 U CN 201920569351U CN 209607878 U CN209607878 U CN 209607878U
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- valve
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- radiator
- battery pack
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a kind of electric automobile lithium battery heat management system based on heat pump air conditioner, belong to electric vehicle engineering field, tank for coolant, battery pack, radiator and the heat exchanger of circulation loop are in turn connected to form including control unit and by pipeline, battery pack has temperature sensor one by connection, and the pipeline between tank for coolant and battery pack is equipped with water pump；Pipeline between heat exchanger and radiator is equipped with shut-off valve one, and the pipeline between shut-off valve one and radiator is connected to the pipeline between heat exchanger and tank for coolant by first pipe, which is provided with shut-off valve two；Radiator, heat exchanger, temperature sensor one, shut-off valve one and shut-off valve two are connect by route with control unit respectively.The utility model has the beneficial effects that the real time temperature of monitoring lithium battery, heats up or cool down to lithium battery according to measured temperature, so that lithium battery is in Optimal Temperature section always, its working performance is promoted, service life extends, save the cost.
Description
Technical field
The utility model relates to electric vehicle engineering fields, and in particular to a kind of electric car lithium electricity based on heat pump air conditioner
Pond heat management system.
Background technique
Currently, automobile industry prosperity and development, under the nervous situation of environment and the energy, new-energy automobile comes into being.With
The development of electric car, battery thermal management technology be also gradually taken seriously, sole power of the battery pack as electric car
Source, lithium ion battery is due to becoming with high-energy density, high voltage platform, high conversion efficiency and the advantages such as environmentally protective
The mainstream configuration of current new-energy automobile dynamical system.But its heat resistanceheat resistant abuse performance is poor, overcharges, over-discharge easily causes
Battery excess temperature operating condition and the consequence for causing battery thermal runaway.
The Optimal Temperature section of usual lithium ion battery is less than the temperature range of actual vehicle operation, when lithium ion battery
Not at Optimal Temperature region, performance can have a greatly reduced quality operating temperature with the service life.And currently in order to making up battery module energy
Density is insufficient, and the capacity of the dynamical lithium-ion battery packs carried on electric car is incrementally increasing, and in performance car
Utilization on, battery module may be to work under the operating condition of lasting high rate charge-discharge, the heat of battery system generation
Amount will increase at multiple.How effectively to predict, control the heat generated with management battery, makes battery modules any normal
All in the primary goal in Optimal Temperature section being the design of current battery system thermal management under operating condition.
Utility model content
The electric automobile lithium battery heat based on heat pump air conditioner that the technical problem to be solved by the utility model is to provide a kind of
Management system monitors the real time temperature of lithium battery, heats up or cools down to lithium battery according to measured temperature, so that lithium battery begins
It is in Optimal Temperature section eventually, it is ensured that the working performance of lithium battery prolongs its service life, save the cost.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of electric automobile lithium battery heat management system based on heat pump air conditioner, including control unit and by pipeline according to
Secondary to connect tank for coolant, battery pack, radiator and the heat exchanger for forming circulation loop, the battery pack has by connection
Temperature sensor one, the pipeline between the tank for coolant and the battery pack are equipped with water pump；The heat exchanger with it is described
Pipeline between radiator is equipped with shut-off valve one, pipeline and the heat exchange between the shut-off valve one and the radiator
Pipeline between device and the tank for coolant is connected to by first pipe, and the first pipe is equipped with shut-off valve two；It is described to dissipate
Hot device, the heat exchanger, the temperature sensor one, the shut-off valve one and the shut-off valve two pass through route and institute respectively
State control unit connection.
The beneficial effects of the utility model are: monitoring the real time temperature of battery pack by temperature sensor one, and will correspond to
Temperature signal be sent to control unit, analyzed by control unit discriminatory analysis as a result, and send instruction open correspond to
Shut-off valve, to be formed into a loop by water pump pumps coolant liquid, to carry out heating to battery pack or cooling is handled, so that battery
The temperature of group is in Optimal Temperature range always, it is ensured that the working performance of battery prolongs its service life, save the cost.When cold
But the temperature of liquid is lower, when being unable to satisfy the heating demand of battery pack, is heated by heat exchanger to coolant liquid, to meet need
It asks.
It should be noted that above-mentioned heat exchanger is the heat exchanger using electric automobile air-conditioning system, without again quasi-
A standby heat exchanger, structure is simple, save the cost.
Based on the above technical solution, the utility model can also do following improvement.
Further, the pipeline between the battery pack and the radiator is equipped with the temperature for measuring coolant temperature
Sensor two, the temperature sensor two are connect by route with described control unit.
Beneficial effect using above-mentioned further scheme be by temperature sensor two monitor pipeline in coolant liquid it is real-time
Temperature, and corresponding temperature signal is sent to control unit, described control unit receives at corresponding temperature signal and analysis
Reason, while instruction is sent, corresponding shut-off valve or heat exchanger are opened, so that cooling heat is back to tank for coolant or flows through
Coolant liquid is heated again after heat exchanger heating.
Further, the pipeline between the temperature sensor two and the radiator and the radiator and the shut-off valve
Pipeline between one is connected to by second pipe, and heating element and shut-off valve three are respectively equipped on the second pipe, described to add
Warmware is arranged close to the temperature sensor two, and the shut-off valve three is arranged close to the shut-off valve one, the heating element and
The shut-off valve three is connect by route with described control unit respectively.
Beneficial effect using above-mentioned further scheme is the pressure in air-conditioning system on electric car when the temperature is low
The possible frosting of contracting machine causes to stall, and heat exchanger can not heat coolant liquid at this time, be given at this time by heating element
Coolant liquid is heated, it is ensured that the temperature of coolant liquid is higher, to heat to battery pack, so that the temperature of battery pack is fallen in
Within the scope of Optimal Temperature, the working performance of battery is promoted.
Further, the heating element is resistance heater or electromagnetic heater.
Beneficial effect using above-mentioned further scheme is that heating speed is fast, and thermal losses is smaller.
Further, the side of the radiator is equipped with fan, and the fan is connect by route with described control unit.
Beneficial effect using above-mentioned further scheme is when the temperature of battery pack is higher, and coolant liquid takes away battery pack
Temperature then flows through radiator, by fan the heat on radiator is quickly dispersed, and heat dissipation effect improves.
Detailed description of the invention
Fig. 1 is the battery pack thermal management figure of the utility model；
Fig. 2 is entire battery pack thermal management system flow chart in the utility model；
Fig. 3 is circuit block diagram in the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, control unit, 2, tank for coolant, 3, battery pack, 4, radiator, 5, heat exchanger, 6, temperature sensor one, 7,
Water pump, 8, shut-off valve one, 9, shut-off valve two, 10, temperature sensor two, 11, heating element, 12, shut-off valve three, 13, fan.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1 to Figure 3, the utility model provides a kind of electric automobile lithium battery heat management system based on heat pump air conditioner
System, tank for coolant 2, battery pack 3,4 and of radiator of circulation loop are in turn connected to form including control unit 1 and by pipeline
Heat exchanger 5, battery pack 3 have temperature sensor 1 by connection, set on the pipeline between tank for coolant 2 and battery pack 3
There is water pump 7, i.e. the inlet of water pump 7 is connected to by pipeline with tank for coolant 2, and water outlet is connected to by pipeline with battery pack 3；
Pipeline between heat exchanger 5 and radiator 4 is equipped with shut-off valve 1, pipeline and heat between shut-off valve 1 and radiator 4
Pipeline between exchanger 5 and tank for coolant 2 is connected to by first pipe, and first pipe is equipped with shut-off valve 29；Radiator 4,
Heat exchanger 5, temperature sensor 1, shut-off valve 1 and shut-off valve 29 are connect by route with control unit 1 respectively.Work
When, the real time temperature of battery pack 3 is monitored by temperature sensor 1, and corresponding temperature signal is sent to control unit 1,
Analyzed by 1 discriminatory analysis of control unit as a result, and send instruction and open corresponding shut-off valve, to be pumped by water pump 7
Coolant liquid is sent to be formed into a loop, to carry out heating or cooling processing to battery pack 3, so that the temperature of battery pack 3 is in optimal always
Temperature range, it is ensured that the working performance of battery prolongs its service life, save the cost.When the temperature of coolant liquid is lower, Wu Faman
When the heating demand of sufficient battery pack 3, heated by heat exchanger 5 to coolant liquid, with meet demand.
It should be noted that above-mentioned heat exchanger 5 is the heat exchanger using electric automobile air-conditioning system, without again quasi-
A standby heat exchanger, structure is simple, save the cost.
In addition, battery pack 3 includes multiple groups lithium battery, separated between two adjacent lithium batteries by coldplate, coldplate
It is equipped with cooling duct, the pipeline for conveying coolant liquid is connected to cooling duct, and coolant liquid flows through coldplate, to give lithium battery liter
Temperature or cooling.
In the utility model, the pipeline between battery pack 3 and radiator 4 is equipped with the temperature for measuring coolant temperature
Sensor 2 10, temperature sensor 2 10 are connect by route with control unit 1, and the corresponding position of pipeline is equipped with what confession was routed through
Threading hole, the gap between threading hole and route are sealed using sealant, and coolant liquid is avoided to reveal.When work, pass through temperature
It spends sensor 2 10 and monitors the real time temperature of coolant liquid in pipeline, and corresponding temperature signal is sent to control unit 1, control
Unit 1 receives corresponding temperature signal and analyzes processing, while sending instruction, opens corresponding shut-off valve or heat exchanger 5, from
And makes cooling heat be back to tank for coolant 2 or flow through after heat exchanger 5 heats and coolant liquid is heated again.
In the utility model, pipeline between temperature sensor 2 10 and radiator 4 and radiator 4 and shut-off valve 1 it
Between pipeline be connected to by second pipe, be respectively equipped with heating element 11 and shut-off valve 3 12 on second pipe, heating member 11 leans on
Nearly temperature sensor 2 10 is arranged, and shut-off valve 3 12 is arranged close to shut-off valve 1, and heating element 11 and shut-off valve 3 12 lead to respectively
Route is crossed to connect with control unit 1.When the temperature is low, the possible frosting of the compressor in the air-conditioning system on electric car causes
Stalling, heat exchanger 5 can not heat coolant liquid at this time, close shut-off valve 1, and opening stop valve 29 at this time
With shut-off valve 3 12, heating element 11 is started to work, then a part of coolant liquid is returned followed by radiator 4, shut-off valve 29
It flow in tank for coolant 2；Then another part coolant liquid is returned followed by heating element 11, shut-off valve 3 12 and shut-off valve 29
It flow in tank for coolant 2, it is ensured that the temperature of coolant liquid is higher, to heat to battery pack 3, so that the temperature of battery pack 3 is fallen in
Within the scope of Optimal Temperature, the working performance of battery is promoted.
Preferably, in the utility model, heating element 11 is preferably resistance heater or electromagnetic heater, heating speed
Fastly, thermal losses is smaller, and heat utilization ratio is high, energy saving.
In the utility model, the side of radiator 4 is equipped with fan 13, and fan 13 is connect by route with control unit 1.When
When the temperature of battery pack 3 is higher, coolant liquid takes away the temperature of battery pack 3, then flows through radiator, to radiate by fan 13
Heat on device 4 quickly disperses, and heat dissipation effect improves.
It should be noted that the junction between pipeline and pipeline links together by welding；Moreover, above-mentioned
Battery is lithium battery.
In addition, above-mentioned all shut-off valve is all made of electric check valve, multiple electric check valves pass through route and control respectively
Unit 1 processed connects, and high degree of automation is without human intervention, time saving and energy saving.
The working principle of the utility model is as follows:
It is respectively middle high by 3 operating temperature divided rank of battery pack since the detection of 3 temperature of battery pack has hysteresis quality
Warm (35 DEG C < T < 38 DEG C), higher temperatures (38 DEG C < T < 42 DEG C), high temperature (42 DEG C < T), middle low temperature (- 5 DEG C < T < 0 DEG C), compared with low temperature (- 8
DEG C < T < -5 DEG C), six grades of low temperature (T < -8 DEG C).
When battery pack 3 is in high temperature (35 DEG C < T < 38 DEG C), opening stop valve 29 simultaneously closes off shut-off valve 1 and cuts
Only valve 3 12, carry out the 1st grade of heat dissipation to battery pack 3: coolant liquid flows to battery pack 3 through water pump 7, takes away the heat of the generation of battery pack 3
Amount reduces coolant temperature by radiator 4, by shut-off valve 29, reaches water pump 7 and completes a heat dissipation circulation.
When battery pack 3 is in higher temperatures (38 DEG C < T < 42 DEG C), opening stop valve 29 simultaneously closes off shut-off valve 1 and cuts
Only valve 3 12, carry out the 2nd grade of heat dissipation to battery pack 3: coolant liquid flows to battery pack 3 through water pump 7, takes away the heat of the generation of battery pack 3
Amount reduces coolant temperature by radiator 4 and fan 13, by shut-off valve 29, reaches one heat dissipation of completion of water pump 7 and follows
Ring.
When battery pack 3 is in high temperature (42 DEG C < T), 3 temperature of battery pack is very high at this time, that is, it is low to be up to discharging efficiency
In 80% temperature nodes, single the 1st, 2 grade of heat dissipation of process cannot be met the requirements, and need the air-conditioning by electric car at this time
System intervenes cooling coolant liquid, then achievees the purpose that cooling battery pack 3, effectively avoids high in short-term inside battery pack 3
Temperature.Opening stop valve 1 simultaneously closes off shut-off valve 29 and shut-off valve 3 12, carries out 3rd level heat dissipation: coolant liquid to battery pack 3
Through water pump 7, battery pack 3 is flowed to, takes away the heat of the generation of battery pack 3, reduces coolant liquid temperature by radiator 4 and fan 13
Degree, by shut-off valve 1, absorbs its heat through 5 air-conditioning refrigerant of over-heat-exchanger, so that coolant liquid is cooled down, the cooling after cooling
Liquid reaches water pump 7 and completes a heat dissipation circulation.
When battery pack 3 is in middle low temperature (- 5 DEG C < T < 0 DEG C), opening stop valve 3 12 and shut-off valve 1 are simultaneously closed off and are cut
Only valve 29, carry out the 1st grade of heating to battery pack 3: coolant liquid flows to battery pack 3 through water pump 7, heats to battery pack 3, by not
The resistance heater 11 of work reaches heat exchanger 5 by shut-off valve 3 12 and shut-off valve 1, since temperature at this time is compared with low latitude
Adjusting system is also to be in heating state if working, and coolant liquid absorbs the heat of air-conditioning refrigerant through over-heat-exchanger 5 at this time, makes
Its temperature increases, and flows through water pump 7 and heats battery pack 3, completes a heat cycles.
Battery pack 3 is in when compared with low temperature (- 8 DEG C < T < -5 DEG C), and at this time the working condition of heat pump air conditioner is unstable, cannot
Completely heated up coolant liquid, opening stop valve 3 12 and shut-off valve 1 simultaneously close off shut-off valve 29, carry out battery pack 3 and carry out the 2nd
Grade heating: coolant liquid flows to battery pack 3 through water pump 7, heats to battery pack 3, by the resistance heater to be worked with lower-wattage
11, the heating slight to coolant liquid reaches heat exchanger 5 by shut-off valve 3 12 and shut-off valve 1, due to temperature at this time compared with
Low latitude adjusting system is also to be in heating state if working, and coolant liquid absorbs the heat of air-conditioning refrigerant through over-heat-exchanger 5 at this time
Amount increases its temperature, flows through water pump 7 and heats battery pack 3, completes a heat cycles.
When battery pack is in low temperature (T < -8 DEG C), logical heat pump air conditioner is since frosting problem will stop working, coolant liquid warp
Water pump 7, cannot completely heated up coolant liquid, opening stop valve 3 12 and shut-off valve 29, simultaneously close off shut-off valve 1, carry out battery
3 progress 3rd level heating of group: battery pack 3 is flowed to, is heated to battery pack 3, the resistance heater 11 by high-power operation, to cold
But liquid is heated, and by shut-off valve 29 and shut-off valve 3 12, returns to water pump 7, completes a heat cycles.
It should be noted that lithium battery (model 36V10AH), temperature sensor (model involved by the utility model
HYDZ-HT100), radiator (model SRZ), electric check valve (model DN15- (DE20)), fan (model FD-45), resistance
Heater (model GB-3976), electromagnetic heater (model S1000-020-100) are all made of the prior art, and above-mentioned each
Component is electrically connected with control unit (model TC-SCR), and the control circuit between control unit and all parts is the prior art.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of electric automobile lithium battery heat management system based on heat pump air conditioner, it is characterised in that: including control unit (1) with
And tank for coolant (2), battery pack (3), radiator (4) and the heat exchanger (5) of circulation loop are in turn connected to form by pipeline,
The battery pack (3) has temperature sensor one (6) by connection, between the tank for coolant (2) and the battery pack (3)
Pipeline be equipped with water pump (7)；Pipeline between the heat exchanger (5) and the radiator (4) is equipped with shut-off valve one
(8), the pipeline between the shut-off valve one (8) and the radiator (4) and the heat exchanger (5) and the tank for coolant
(2) pipeline between is connected to by first pipe, and the first pipe is equipped with shut-off valve two (9)；The radiator (4), institute
It states heat exchanger (5), the temperature sensor one (6), the shut-off valve one (8) and the shut-off valve two (9) and passes through line respectively
Road is connect with described control unit (1).
2. the electric automobile lithium battery heat management system according to claim 1 based on heat pump air conditioner, it is characterised in that: institute
The pipeline between battery pack (3) and the radiator (4) is stated equipped with the temperature sensor two for measuring coolant temperature
(10), the temperature sensor two (10) is connect by route with described control unit (1).
3. the electric automobile lithium battery heat management system according to claim 2 based on heat pump air conditioner, it is characterised in that: institute
State pipeline between temperature sensor two (10) and the radiator (4) and the radiator (4) and the shut-off valve one (8) it
Between pipeline be connected to by second pipe, be respectively equipped with heating element (11) and shut-off valve three (12), institute on the second pipe
It states heating element (11) to be arranged close to the temperature sensor two (10), the shut-off valve three (12) is close to the shut-off valve one
(8) it is arranged, the heating element (11) and the shut-off valve three (12) are connect by route with described control unit (1) respectively.
4. the electric automobile lithium battery heat management system according to claim 3 based on heat pump air conditioner, it is characterised in that: institute
Stating heating element (11) is resistance heater or electromagnetic heater.
5. the electric automobile lithium battery heat management system according to claim 1-4 based on heat pump air conditioner, special
Sign is: the side of the radiator (4) is equipped with fan (13), and the fan (13) passes through route and described control unit (1)
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920569351.2U CN209607878U (en) | 2019-04-24 | 2019-04-24 | A kind of electric automobile lithium battery heat management system based on heat pump air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920569351.2U CN209607878U (en) | 2019-04-24 | 2019-04-24 | A kind of electric automobile lithium battery heat management system based on heat pump air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209607878U true CN209607878U (en) | 2019-11-08 |
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ID=68406236
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920569351.2U Expired - Fee Related CN209607878U (en) | 2019-04-24 | 2019-04-24 | A kind of electric automobile lithium battery heat management system based on heat pump air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209607878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072204A (en) * | 2020-08-27 | 2020-12-11 | 安徽工程大学 | Immersed electric automobile lithium battery pack cooling system with built-in spray pipe |
-
2019
- 2019-04-24 CN CN201920569351.2U patent/CN209607878U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072204A (en) * | 2020-08-27 | 2020-12-11 | 安徽工程大学 | Immersed electric automobile lithium battery pack cooling system with built-in spray pipe |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20200424 |