CN210350027U - Double-unit power battery thermal management system and electric motor coach thereof - Google Patents
Double-unit power battery thermal management system and electric motor coach thereof Download PDFInfo
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- CN210350027U CN210350027U CN201921592902.3U CN201921592902U CN210350027U CN 210350027 U CN210350027 U CN 210350027U CN 201921592902 U CN201921592902 U CN 201921592902U CN 210350027 U CN210350027 U CN 210350027U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a double-unit power battery thermal management system, it includes: the battery pack A, the battery heat management unit A, the battery pack B and the battery heat management unit B are sequentially connected in series and form a circulating water loop structure, wherein the water outlet end of the battery pack A is connected with the water inlet end of the battery heat management unit A through a pipeline, the water outlet end of the battery heat management unit A is connected with the water inlet end of the battery pack B through a pipeline, the water outlet end of the battery pack B is connected with the water inlet end of the battery heat management unit B through a pipeline, and the water outlet end of the battery heat management unit B is connected with the water inlet end of the battery pack A through a pipeline. The utility model also provides an [ electric ] motor coach. The utility model discloses can circulate the heat dissipation to the comparatively dispersed different group battery in position on the [ electric ] motor coach, effectual prevention power battery thermal runaway, the working life of extension battery, convenient and practical.
Description
Technical Field
The utility model belongs to the technical field of the battery thermal management, in particular to double-unit power battery thermal management system and [ electric ] motor coach thereof.
Background
The electric motor coach is a large-sized new energy automobile, generally uses electric energy to drive the automobile to run, has low noise and high running stability, realizes zero emission, and is widely applied to various major cities.
Because [ electric ] motor coach is great, and weight is higher, and the automobile body is whole longer, [ electric ] motor coach needs install power battery group respectively around the automobile body to ensure [ electric ] motor coach's the energy. At present, the thermal management of the common battery mainly aims at managing the battery pack with concentrated positions, and when the battery pack is more dispersed on an electric passenger car, the thermal management of the common battery often cannot realize good heat dissipation control, so that the temperature of a local working environment is too high, and the stable operation of the battery pack is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem and provide a double-unit power battery thermal management system, its thermal management that can solve present ordinary battery is in the face of on [ electric ] motor coach when the group battery of dispersion, and it can't realize fine heat dissipation control, causes local operational environment temperature too high, influences the technical problem of the steady operation of group battery.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a dual-battery power battery thermal management system, comprising: the battery pack A, the battery heat management unit A, the battery pack B and the battery heat management unit B are sequentially connected in series and form a circulating water loop structure, wherein the water outlet end of the battery pack A is connected with the water inlet end of the battery heat management unit A through a pipeline, the water outlet end of the battery heat management unit A is connected with the water inlet end of the battery pack B through a pipeline, the water outlet end of the battery pack B is connected with the water inlet end of the battery heat management unit B through a pipeline, and the water outlet end of the battery heat management unit B is connected with the water inlet end of the battery pack A through a pipeline.
The utility model has the advantages that: through battery pack A, battery heat management unit A, battery B and the battery heat management unit B that concatenates in proper order and form circulating water loop structure, it can circulate the heat dissipation to the comparatively dispersed different group battery in position on the [ electric ] motor coach, and the effectual power battery thermal runaway that prevents prolongs the working life of battery, convenient and practical.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the battery heat management unit A comprises a first water pump, a first heat exchanger, a first compressor and a first condenser, wherein the water outlet end of the battery pack A is connected with the water inlet end of the first water pump through a pipeline, the water outlet end of the first water pump is connected with the water inlet end a of the first heat exchanger through a pipeline, and the water outlet end B of the first heat exchanger is connected with the water inlet end of the battery pack B through a pipeline; the cooling fluid outlet end c of the first heat exchanger is also connected with the inlet end of the first compressor through a pipeline, the outlet end of the first compressor is connected with the inlet end of the first condenser through a pipeline, and the outlet end of the first condenser is connected with the cooling fluid inlet end d of the first heat exchanger through a pipeline;
the battery heat management unit B comprises a second water pump, a second heat exchanger, a second compressor and a second condenser, wherein the water outlet end of the battery pack B is connected with the water inlet end of the second water pump through a pipeline, the water outlet end of the second water pump is connected with the water inlet end a of the second heat exchanger through a pipeline, and the water outlet end B of the second heat exchanger is connected with the water inlet end of the battery pack A through a pipeline; the cooling fluid outlet end c of the second heat exchanger is further connected with the inlet end of the second compressor through a pipeline, the outlet end of the second compressor is connected with the inlet end of the second condenser through a pipeline, and the outlet end of the second condenser is connected with the cooling fluid inlet end d of the second heat exchanger through a pipeline.
The beneficial effects of adopting above-mentioned further scheme are that the compressor, condenser and heat exchanger are established ties in proper order and form a circulation refrigeration loop structure, wherein the condenser is connected to the compressor, under the compressor effect, the condenser can be in refrigerant transmission enters into the heat exchanger, the refrigerant can absorb a large amount of heats that flow through rivers in heat exchanger, thereby the realization is carried out the effect of cooling to water, then the refrigerant after absorbing the heat gets back to the compressor again through heat exchanger in, accomplish a refrigeration process, simple to operate, energy-concerving and environment-protective, refrigeration effect is good.
Further, the battery thermal management unit a further includes a first condensing fan, and the first condenser is disposed in front of the first condensing fan; the battery thermal management unit B further comprises a second condensing fan, and the second condenser is arranged in front of the second condensing fan.
Adopt the beneficial effect of above-mentioned further scheme to be through setting up first condensing fan and second condensing fan can promote the cooling effect of first condenser and second condenser.
Further, the first water pump and the second water pump are respectively connected with an expansion water tank in parallel.
Adopt above-mentioned further scheme's beneficial effect to supplement through setting up expansion tank and can suitably cool liquid, increase thermal management system's stability and durability.
Furthermore, expansion valves are respectively arranged on a pipeline connecting the first condenser and the first heat exchanger and a pipeline connecting the second condenser and the second heat exchanger.
The beneficial effect of adopting above-mentioned further scheme is that help controlling the flow of refrigerant through setting up the expansion valve, improves cooling efficiency.
The utility model also provides an [ electric ] motor coach, it can solve at present because the group battery arranges the position inequality, and the ambient temperature that causes the group battery of different positions to locate is different, brings the unstable technical problem of group battery synchronous operation.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an electric motor coach, comprising: automobile body, back car storehouse, group battery A, group battery B, battery heat management unit A and battery heat management unit B, group battery A battery heat management unit A with the equal fixed mounting of battery heat management unit B is at the automobile body top, group battery B fixed mounting is in the car storehouse of back, group battery A's play water end pass through the pipeline with battery heat management unit A intakes the end and connects, battery heat management unit A's play water end passes through the pipeline and is connected with group battery B's the end of intaking, group battery B's play water end pass through the pipeline with battery heat management unit B intakes the end and connects, battery heat management unit B's play water end passes through the pipeline and is connected with group battery A's the end of intaking.
The utility model has the advantages that: the utility model discloses can carry out the synchronous cooling to the group battery of different positions on the automobile body, let the group battery can work under the same temperature environment to improve the stability of battery work, promote for [ electric ] motor coach's use and establish the basis.
Furthermore, the pipelines are all pipelines with heat insulation layers.
The beneficial effects of adopting above-mentioned further scheme are that the summer day high temperature is considered, adopt the pipeline of taking the insulating layer can effectively protect the pipeline to ensure the temperature of cooling water.
Further, the battery pack A is composed of at least two batteries connected in series; the battery pack B is composed of at least two batteries connected in series.
Drawings
Fig. 1 is a schematic structural diagram of a power battery thermal management system according to the present invention;
FIG. 2 is a top view of the electric motor coach of the present invention;
fig. 3 is a side view of the electric motor coach of the utility model.
In the drawings, the components represented by the respective reference numerals are listed below:
2. the system comprises battery packs A, 4, battery packs B, 6, battery heat management units A, 8, a first water pump, 10, a first heat exchanger, 12, a first compressor, 14, a first condenser, 15, a first condensing fan, 16, battery heat management units B, 18, a second water pump, 20, a second heat exchanger, 22, a second compressor, 24, a second condenser, 25, a second condensing fan, 26, an expansion water tank, 28, an expansion valve, 32, a vehicle body, 34, a rear vehicle cabin, 36 and batteries; 40. pipeline with heat insulating layer.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be further described with reference to the accompanying drawings 1-3:
in a first mode
This mode provides a two unit power battery thermal management system, as shown in fig. 1, it includes: the battery pack A2, the battery heat management unit A6, the battery pack B4 and the battery heat management unit B16 are sequentially connected in series and form a circulating water loop structure, wherein the water outlet end of the battery pack A2 is connected with the water inlet end of the battery heat management unit A6 through a pipeline, the water outlet end of the battery heat management unit A6 is connected with the water inlet end of the battery pack B4 through a pipeline, the water outlet end of the battery pack B4 is connected with the water inlet end of the battery heat management unit B16 through a pipeline, and the water outlet end of the battery heat management unit B16 is connected with the water inlet end of the battery pack A2 through a pipeline.
The mode can solve the technical problems that when the existing heat management of the common battery faces to a dispersed battery pack on an electric passenger car, the heat management of the common battery cannot realize good heat dissipation control, the temperature of a local working environment is too high, and the stable operation of the battery pack is influenced.
This mode is through establishing ties in proper order and forming battery group A2, battery heat management unit A6, battery group B4 and the battery heat management unit B16 of circulating water loop structure, and it can circulate the heat dissipation to the comparatively dispersed different group batteries in position on the [ electric ] motor coach, and the effectual power battery thermal runaway that prevents prolongs the working life of battery, convenient and practical.
In order to achieve the condensation effect, as shown in fig. 1, the battery thermal management unit A6 includes a first water pump 8, a first heat exchanger 10, a first compressor 12, and a first condenser 14, wherein a water outlet end of the battery pack A2 is connected to a water inlet end of the first water pump 8 through a pipeline, a water outlet end of the first water pump 8 is connected to a water inlet end a of the first heat exchanger 10 through a pipeline, and a water outlet end B of the first heat exchanger 10 is connected to a water inlet end of the battery pack B4 through a pipeline; the cooling fluid outlet end c of the first heat exchanger 10 is further connected with the inlet end of the first compressor 12 through a pipeline, the outlet end of the first compressor 12 is connected with the inlet end of the first condenser 14 through a pipeline, and the outlet end of the first condenser 14 is connected with the cooling fluid inlet end d of the first heat exchanger 10 through a pipeline; as shown in fig. 1, the battery thermal management unit B16 includes a second water pump 18, a second heat exchanger 20, a second compressor 22, and a second condenser 24, wherein the water outlet of the battery pack B4 is connected to the water inlet of the second water pump 18 through a pipe, the water outlet of the second water pump 18 is connected to the water inlet a of the second heat exchanger 20 through a pipe, and the water outlet B of the second heat exchanger 20 is connected to the water inlet of the battery pack A2 through a pipe; the cooling fluid outlet end c of the second heat exchanger 20 is further connected to the inlet end of the second compressor 22 through a pipe, the outlet end of the second compressor 22 is connected to the inlet end of the second condenser 24 through a pipe, and the outlet end of the second condenser 24 is connected to the cooling fluid inlet end d of the second heat exchanger 20 through a pipe.
Like this, compressor, condenser and heat exchanger are established ties in proper order and are formed a circulation refrigeration loop structure, and wherein the condenser is connected to the compressor, and under the compressor effect, the condenser can be to the refrigerant transmission enter into the heat exchanger in, and the refrigerant can absorb a large amount of heats that flow through rivers in heat exchanger to the realization carries out the effect of cooling to water, then in the refrigerant after the heat absorption gets back to the compressor again through heat exchanger, accomplishes once refrigeration process, simple to operate, and is energy-concerving and environment-protective, and refrigeration effect is good.
It will be appreciated that the heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. The equipment used in this mode is as follows: the heat exchanger adopts a tin-free Hacheng heat exchanger of the limited company, model 9930 and a plate heat exchanger; the compressor and the condenser adopt a Hujia electric appliance manufacturing company Limited in Hebei, model QD35YC, and a compressor condenser unit, wherein the compressor condenser unit comprises a compressor, a condenser, a condensing fan, a power line and the like.
In order to improve the cooling efficiency, the battery thermal management unit A6 further includes a first condensing fan 15, and the first condenser 14 is disposed in front of the first condensing fan 15; the battery thermal management unit B16 further includes a second condensing fan 25, and the second condenser 24 is disposed in front of the second condensing fan 25.
In this way, the cooling effect of the first condenser 14 and the second condenser 24 can be enhanced by providing the first condensing fan 15 and the second condensing fan 25.
Preferably, the expansion water tanks 26 are connected in parallel to the first water pump 8 and the second water pump 18, respectively. In this way, by providing expansion tank 26 to replenish the appropriate available coolant, the stability and durability of the thermal management system is increased.
Further, expansion valves 28 are installed in both a pipe connecting the first condenser 14 and the first heat exchanger 10 and a pipe connecting the second condenser 24 and the second heat exchanger 20. The provision of the expansion valve 28 in this way contributes to control of the flow rate of the refrigerant, thereby improving the cooling efficiency.
In the following, a mode of applying the dual-unit power battery thermal management system to the electric motor coach is also provided.
Mode two
The present invention provides an electric motor coach, as shown in fig. 2 and 3, including: automobile body 32, back car storehouse 34, group battery A2, group battery B4, battery heat management unit A6 and battery heat management unit B16, group battery A2 battery heat management unit A6 with battery heat management unit B16 all fixed mounting is at automobile body 32 top, group battery B4 fixed mounting is in back car storehouse 34, group battery A2's play water end pass through the pipeline with battery heat management unit A6 is intake and is connected, battery heat management unit A6's play water end passes through the pipeline and is connected with the end of intaking of group battery B4, group battery B4's play water end pass through the pipeline with battery heat management unit B16 is intake and is connected, the play water end of battery heat management unit B16 passes through the pipeline and is connected with the end of intaking of group battery A2.
The technical problem that the battery pack synchronous operation is unstable due to the fact that the battery pack is arranged at different positions and different environmental temperatures of the battery packs at different positions are caused at present can be solved by the mode.
This mode can carry out the synchronous cooling to the group battery of different positions on automobile body 32, lets the group battery can work under the same temperature environment to improve the stability of battery work, establish the basis for [ electric ] motor coach's use is promoted.
As can be appreciated, the battery pack A2 is composed of at least two batteries 36 connected in series; the battery B4 is composed of at least two batteries 36 connected in series. In this embodiment, the battery pack A2 is composed of two batteries connected in series; the battery B4 is composed of two batteries connected in series.
In addition, the ducts are all insulated ducts 40, taking into account the environmental conditions of outdoor work of the electric customers. Thus, the pipeline 40 with the heat insulation layer can effectively protect the pipeline, ensure the temperature of the cooling water and avoid influencing the use even in the high-temperature environment in summer.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A double-unit power battery thermal management system is characterized by comprising: the battery pack comprises a battery pack A (2), a battery heat management unit A (6), a battery pack B (4) and a battery heat management unit B (16) which are sequentially connected in series and form a circulating water loop structure, wherein the water outlet end of the battery pack A (2) is connected with the water inlet end of the battery heat management unit A (6) through a pipeline, the water outlet end of the battery heat management unit A (6) is connected with the water inlet end of the battery pack B (4) through a pipeline, the water outlet end of the battery pack B (4) is connected with the water inlet end of the battery heat management unit B (16) through a pipeline, and the water outlet end of the battery heat management unit B (16) is connected with the water inlet end of the battery pack A (2) through.
2. The double-unit power battery heat management system according to claim 1, wherein the battery heat management unit A (6) comprises a first water pump (8), a first heat exchanger (10), a first compressor (12) and a first condenser (14), the water outlet end of the battery pack A (2) is connected with the water inlet end of the first water pump (8) through a pipeline, the water outlet end of the first water pump (8) is connected with the water inlet end a of the first heat exchanger (10) through a pipeline, and the water outlet end B of the first heat exchanger (10) is connected with the water inlet end of the battery pack B (4) through a pipeline; the cooling fluid outlet end c of the first heat exchanger (10) is further connected with the inlet end of the first compressor (12) through a pipeline, the outlet end of the first compressor (12) is connected with the inlet end of the first condenser (14) through a pipeline, and the outlet end of the first condenser (14) is connected with the cooling fluid inlet end d of the first heat exchanger (10) through a pipeline;
the battery heat management unit B (16) comprises a second water pump (18), a second heat exchanger (20), a second compressor (22) and a second condenser (24), wherein the water outlet end of the battery pack B (4) is connected with the water inlet end of the second water pump (18) through a pipeline, the water outlet end of the second water pump (18) is connected with the water inlet end a of the second heat exchanger (20) through a pipeline, and the water outlet end B of the second heat exchanger (20) is connected with the water inlet end of the battery pack A (2) through a pipeline; the cooling fluid outlet end c of the second heat exchanger (20) is further connected with the inlet end of the second compressor (22) through a pipeline, the outlet end of the second compressor (22) is connected with the inlet end of the second condenser (24) through a pipeline, and the outlet end of the second condenser (24) is connected with the cooling fluid inlet end d of the second heat exchanger (20) through a pipeline.
3. The dual-unit power battery thermal management system according to claim 2, wherein the battery thermal management unit a (6) further comprises a first condensing fan (15), and the first condenser (14) is disposed in front of the first condensing fan (15); the battery thermal management unit B (16) further comprises a second condensing fan (25), and the second condenser (24) is arranged in front of the second condensing fan (25).
4. The dual-unit power battery thermal management system according to claim 2 or 3, wherein the first water pump (8) and the second water pump (18) are respectively connected with the expansion water tank (26) in parallel.
5. The dual-battery thermal management system according to claim 2 or 3, wherein an expansion valve (28) is mounted on both the pipe connecting the first condenser (14) and the first heat exchanger (10) and the pipe connecting the second condenser (24) and the second heat exchanger (20).
6. An electric motor coach, characterized in that it comprises: a vehicle body (32), a rear vehicle cabin (34), a battery pack A (2), a battery pack B (4), a battery thermal management unit A (6) and a battery thermal management unit B (16), the battery pack A (2), the battery thermal management unit A (6) and the battery thermal management unit B (16) are fixedly arranged at the top of a vehicle body (32), the battery pack B (4) is fixedly arranged in a rear vehicle cabin (34), the water outlet end of the battery pack A (2) is connected with the water inlet end of the battery heat management unit A (6) through a pipeline, the water outlet end of the battery heat management unit A (6) is connected with the water inlet end of the battery pack B (4) through a pipeline, the water outlet end of the battery pack B (4) is connected with the water inlet end of the battery thermal management unit B (16) through a pipeline, and the water outlet end of the battery heat management unit B (16) is connected with the water inlet end of the battery pack A (2) through a pipeline.
7. The electric motor coach as claimed in claim 6, wherein the ducts are insulated ducts.
8. An electric motor coach according to claim 6, characterised in that said battery pack A (2) is composed of at least two batteries (36) connected in series; the battery pack B (4) is composed of at least two batteries (36) connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592902.3U CN210350027U (en) | 2019-09-24 | 2019-09-24 | Double-unit power battery thermal management system and electric motor coach thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592902.3U CN210350027U (en) | 2019-09-24 | 2019-09-24 | Double-unit power battery thermal management system and electric motor coach thereof |
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| Publication Number | Publication Date |
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| CN210350027U true CN210350027U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921592902.3U Active CN210350027U (en) | 2019-09-24 | 2019-09-24 | Double-unit power battery thermal management system and electric motor coach thereof |
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| CN (1) | CN210350027U (en) |
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2019
- 2019-09-24 CN CN201921592902.3U patent/CN210350027U/en active Active
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