CN211654906U - Liquid cooling battery box of electric automobile - Google Patents
Liquid cooling battery box of electric automobile Download PDFInfo
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- CN211654906U CN211654906U CN202020442322.2U CN202020442322U CN211654906U CN 211654906 U CN211654906 U CN 211654906U CN 202020442322 U CN202020442322 U CN 202020442322U CN 211654906 U CN211654906 U CN 211654906U
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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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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a liquid cooling battery box of an electric automobile, which provides an independent liquid cooling system for a battery pack, satisfies the heat dissipation of the battery at high temperature, and also ensures the operation at low temperature; in addition, the independent heat management system and the battery pack are installed in the same box body, so that the integration and modularization are realized, the vehicle-mounted space is saved, the maintenance is convenient, and the risks of damage and the like of an external pipeline are avoided. The utility model provides an electric automobile's liquid cooling battery box, includes box, upper cover, battery module, cold drawing, liquid cooling system and battery monitoring system, and the setting is stacked to the bottom plate top-down of battery module, cold drawing and box, its characterized in that: the inner cavity of the box body is divided into more than two cavities by a partition beam, the upper cover comprises cover bodies in one-to-one correspondence with the cavities, the cover bodies are sealed and covered on the upper portions of the cavities to form box chambers, each box chamber comprises a first box chamber and a second box chamber, the battery module, the cold plate and the sensor of the battery monitoring system are installed in the first box chamber, and the liquid cooling system is installed in the second box chamber.
Description
Technical Field
The utility model relates to an automobile battery technical field, concretely relates to electric automobile's liquid cooling battery box.
Background
The battery is a core component of the electric automobile, and some manufacturers use the battery for heat dissipation and the air conditioner in the automobile to share a refrigeration system, but as the service life of the battery increases, the heat productivity of the battery increases year by year, the refrigeration requirement also increases, and finally, the uneven refrigeration distribution of the passenger compartment and the battery pack is caused, so that the performance of the battery pack and the comfort level in the automobile are affected.
Therefore, independent refrigeration systems play a vital role in addressing the refrigeration needs of the passenger compartment and the battery pack. The requirements of high-temperature refrigeration and low-temperature heating of the battery in different years are met, and the heat dissipation effect of the passenger compartment is also met. However, the refrigeration system and the battery coexist in the same space, the refrigeration system generates heat to influence the monitoring of the temperature sensor on the temperature of the battery, and meanwhile, the fan of the refrigeration system influences the monitoring of the gas content sensor on the gas released by the battery.
SUMMERY OF THE UTILITY MODEL
The utility model provides a liquid cooling battery box of an electric automobile, which provides an independent liquid cooling system for a battery pack, satisfies the heat dissipation of the battery at high temperature, and also ensures the operation at low temperature; in addition, the independent heat management system and the battery pack are installed in the same box body, so that the integration and modularization are realized, the vehicle-mounted space is saved, the maintenance is convenient, and the risks of damage and the like of an external pipeline are avoided.
Its technical scheme is such, a liquid cooling battery box of electric automobile, includes box, upper cover, battery module, cold drawing, liquid cooling system and battery monitoring system, the battery module the cold drawing with the bottom plate top-down of box stacks setting, its characterized in that: the inner chamber of box is separated for the cavity more than two by the partition beam, the upper cover includes the lid with each cavity one-to-one, form the case room after the sealed lid of lid fits cavity upper portion, the case room includes first case room and second case room, the battery module the cold drawing with battery monitoring system's sensor install in first case is indoor, liquid cooling system installs in the second case is indoor.
Furthermore, the pipelines of the liquid cooling system and the pipelines connected with the cold plate are contained in the first box chamber and the second box chamber.
Furthermore, the pipeline for connecting the liquid cooling system with the cold plate comprises a liquid inlet header pipe and a liquid outlet header pipe, the cold plates are arranged in parallel, each cold plate is provided with a group of battery modules, and a liquid inlet joint and the liquid inlet header pipe of each cold plate and a liquid outlet joint and the liquid outlet header pipe of each cold plate are respectively connected through a quick plug-in unit;
the partition beam is provided with a liquid outlet water nozzle and a backflow water nozzle which penetrate through the first box chamber and the second box chamber, the liquid outlet pipes of the liquid inlet main pipe and the liquid cooling system are connected with the liquid outlet water nozzle through the quick plug-in units respectively, and the backflow pipes of the liquid outlet main pipe and the liquid cooling system are connected with the backflow water nozzle through the quick plug-in units respectively.
Further, the liquid cooling system comprises a compressor, a condenser, an expansion valve, a heat exchanger, a water pump, a water tank, a PTC heater, a first three-way electromagnetic valve, a second three-way electromagnetic valve and a cooling water temperature sensor, wherein the compressor, the condenser, the expansion valve and the cooling water circulation pipeline of the heat exchanger are respectively in electric control connection with the controller, the refrigerant circulation pipeline of the compressor, the condenser, the expansion valve and the cooling water temperature sensor are sequentially connected to form a refrigerant circulation loop, the cooling water circulation pipeline of the water tank, the water pump, the second three-way electromagnetic valve and the cooling plate of the heat exchanger are sequentially connected to form a cooling water circulation loop, the remaining end of the first three-way electromagnetic valve, the remaining end of the second three-way electromagnetic valve and the PTC.
Furthermore, the upper cover part that the second case room corresponds has seted up ventilation hole and fan mounting hole, air filter is all installed to ventilation hole and fan mounting hole, the fan of installation in the fan mounting hole is just to setting up with the condenser.
Furthermore, the partition beam is T-shaped, the cavity further comprises a third cavity, the third cavity is used for installing a power supply circuit, wiring holes are formed in the lateral wall of the box body corresponding to the third cavity and the transverse position and the longitudinal position of the partition beam, and the circuit part of the battery module and the circuit part of the liquid cooling system extend into the third cavity from the wiring holes and then are connected with the power supply circuit.
Furthermore, the box body comprises a bottom plate and edge beams surrounding the periphery of the bottom plate, the upper cover comprises three cover bodies in one-to-one correspondence with the first box chamber, the second box chamber and the third cavity, an outer skirt edge in a shape like a Chinese character 'kou' and an inner skirt edge in a shape like a Chinese character 'T' and connecting the bottoms of the adjacent surfaces of the three cover bodies, and sealing gaskets are respectively arranged between the outer skirt edge and the edge beams and between the inner skirt edge and the partition beams.
Preferably, the edge beam, the bottom plate and the cold plate are all aluminum extruded profiles; the side beam is characterized in that plugs arranged along the length direction are arranged at the bottoms of the inner side surfaces of the side beams, grooves arranged along the length direction are formed in the peripheral end surfaces of the bottom plate, and the side beams are connected with the bottom plate through the plugs and the grooves in a splicing mode and through friction stir welding.
The liquid cooling battery box of the utility model provides an independent heat management system for the battery pack, thereby meeting the heat dissipation of the battery at high temperature and ensuring the operation at low temperature; the box body is divided into more than two cavities through the partition beam, the upper cover is provided with the cover bodies which are matched with the cavities in a one-to-one correspondence mode, a sealed box chamber is formed after the upper cover is closed, and the liquid cooling system and the battery module are installed in different box chambers, so that the battery module is prevented from being influenced by the liquid cooling system, and the effective monitoring of the sensor on the battery is ensured; the liquid cooling battery box of the utility model is a product integrating the battery module and the liquid cooling system, has high integration level and is convenient for automobile manufacturers to install; the utility model relates to a pipeline holding is in first boxroom and second boxroom, and the holding is inside the liquid cooling battery box promptly, and not only the product is pleasing to the eye, can avoid the pipeline to damage or the corresponding part of inserting soon to collide with and drop moreover.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention without the upper cover.
Fig. 3 is an exploded view of the liquid cooling system and the cold plate according to the present invention.
Fig. 4 is a partially enlarged structural diagram of a portion a in fig. 3.
Fig. 5 is a schematic structural diagram of the upper cover of the present invention.
Fig. 6 is a schematic structural diagram of the box of the present invention, wherein the bolt holes of the bottom plate portion of the third cavity are not shown.
Fig. 7 is the structure diagram of the utility model discloses a boundary beam and bottom plate concatenation.
Fig. 8 is a schematic block diagram illustrating the connection between the liquid cooling system and the cold plate according to the present invention.
Detailed Description
As shown in fig. 1 to 8, a liquid-cooled battery box of an electric vehicle includes a box body, an upper cover, a battery module (not shown), a cold plate 30, a liquid-cooled system, and a battery monitoring sensor (including a battery temperature sensor and a gas content sensor), the battery module and the cold plate 30 are stacked from top to bottom and are fastened and connected with a bottom plate 11 of the box body by bolts, an inner cavity of the box body is divided into a first cavity 110, a second cavity 120, and a third cavity 130 by a T-shaped partition beam 13, the upper cover includes a first cover 21, a second cover 22, and a third cover 23 corresponding to the cavities one to one, the first cover 21 and the first cavity 110 form a first box chamber, the second cavity 120 and the second cover 22 form a second box chamber, the third cavity 130 and the third cover 23 form a third box chamber after the covers are sealed and covered on the upper portion of the cavity, the battery module, the cold plate 30, and the battery monitoring sensor are installed in the first box chamber, the liquid cooling system is arranged in the second box chamber, the pipeline of the liquid cooling system and the pipeline connected with the cold plate 30 are contained in the first box chamber and the second box chamber, the third cavity is used for installing a power supply circuit, the lateral wall of the box body corresponding to the third cavity and the transverse part and the longitudinal part of the partition beam 13 are provided with wiring holes 14, the circuit part of the battery module and the circuit part of the liquid cooling system extend into the third cavity from the wiring holes and then are connected with the power supply circuit, and power supply of all devices of the liquid cooling system is achieved.
The pipeline for connecting the liquid cooling system and the cold plates 30 comprises a liquid inlet main pipe 33 and a liquid outlet main pipe 34 which extend along the side wall of the third cavity, more than two cold plates 30 are arranged side by side, each cold plate 30 is provided with a group of battery modules, and the liquid inlet joint 31 and the liquid inlet main pipe of each cold plate 30, and the liquid outlet joint 32 and the liquid outlet main pipe 34 of each cold plate 30 are respectively connected through a first quick plug-in unit 35 and a second quick plug-in unit 36; the transverse part of the partition beam 13 is provided with a liquid outlet nozzle 37 and a backflow nozzle 38 which penetrate through the first tank chamber and the second tank chamber, the liquid inlet header pipe 33 and the liquid outlet pipe of the liquid cooling system are respectively connected with the liquid outlet nozzle 37 through a second quick plug-in unit 36 and a third quick plug-in unit 39, and the liquid outlet header pipe 34 and the backflow pipe of the liquid cooling system are respectively connected with the backflow nozzle 38 through the second quick plug-in unit 36 and the third quick plug-in unit 39. The pipeline part is connected through the quick plug-in components, and the installation and maintenance are more convenient.
The liquid cooling system comprises a compressor 41, a condenser 42a, an expansion valve 43, a heat exchanger 44, a water pump 47, a water tank 48, a PTC heater 49, a first three-way electromagnetic valve 45 and a second three-way electromagnetic valve 46 which are electrically connected with a controller respectively, refrigerant circulation pipelines of the compressor 41, the condenser 42a, the expansion valve 43 and the heat exchanger 44 are sequentially connected to form a refrigerant circulation loop, the water tank 48, the water pump 47, the second three-way electromagnetic valve 46, a cooling water circulation pipeline of the heat exchanger 44, the first three-way electromagnetic valve 45 and the cold plate 30 are sequentially connected to form a cooling water circulation loop, and the remaining end of the first three-way electromagnetic valve 45, the remaining end of the second three-way electromagnetic valve 46 and the PTC heater. When the battery is overheated and needs to be cooled, the ports of the first three-way electromagnetic valve and the second three-way electromagnetic valve connected with the PTC heater are closed, and cooling water exchanges heat with a refrigerant in the heat exchanger and then is cooled to the required temperature; when the temperature of the battery needs to be raised in winter, the ports of the first three-way electromagnetic valve and the second three-way electromagnetic valve connected with the PTC heater are all opened, at the moment, the refrigerant circulation loop can be not started, and the temperature of a cooling medium, such as cooling water, heated by the PTC heater is raised to the required temperature. The circuit part of the battery temperature sensor is electrically controlled and connected with the controller after penetrating into the second tank chamber from the third tank chamber through a wiring hole, the cooling water temperature sensor is specifically installed on the third quick plug-in unit 39, the cooling water temperature sensor is used for detecting the temperature of cooling water entering the liquid inlet main pipe, and then the feedback controller controls the heating of the PTC heater and the flow of two outlet ends of the second three-way electromagnetic valve, so that the water temperature is effectively adjusted.
The upper cover portion that the second case room corresponds has seted up ventilation hole 211 and fan mounting hole, and air filter is all installed to ventilation hole 211 and fan mounting hole to prevent that the dust from getting into inside, the fan 42b of installation in the fan mounting hole just to setting up with condenser 42 a.
The box includes bottom plate 11 and encloses and close in bottom plate 11 boundary beam 12 all around, and the upper cover includes three lid with first case room, second case room and third cavity one-to-one, around connecting the outer skirt 24 of the mouth style of calligraphy of three lid outer edge bottoms and linking up the interior skirt of the T font of three lid adjacent surface bottoms, installs sealed pad between outer skirt 24 and the boundary beam 12 and between interior skirt and the partition beam 13 respectively.
The boundary beam 12, the bottom plate 11 and the cold plate 30 are all aluminum extruded sections, the bottom of the inner side of the boundary beam 12 is provided with a plug 121 arranged along the length direction, the peripheral end face of the bottom plate 11 is provided with a groove 111 arranged along the length direction, and the boundary beam 12 and the bottom plate 11 are spliced (namely the plug 121 is inserted into the groove 111) through the plug and the groove and are connected through friction stir welding. Boundary beam, bottom plate and cold drawing adopt aluminium extruded profile, and material strength is higher, and simultaneously, boundary beam and bottom plate pass through end cap and recess concatenation and link to each other through friction stir welding, and joint strength is high, and then can effectively improve box bulk strength, improve its bearing capacity.
Claims (8)
1. The utility model provides an electric automobile's liquid cooling battery box, includes box, upper cover, battery module, cold drawing, liquid cooling system and battery monitoring system, the battery module the cold drawing with the bottom plate top-down of box stacks the setting, its characterized in that: the inner chamber of box is separated for the cavity more than two by the partition beam, the upper cover includes the lid with each cavity one-to-one, form the case room after the sealed lid of lid fits cavity upper portion, the case room includes first case room and second case room, the battery module the cold drawing with battery monitoring system's sensor install in first case is indoor, liquid cooling system installs in the second case is indoor.
2. The liquid-cooled battery box of the electric vehicle as claimed in claim 1, wherein: the liquid cooling system is accommodated in the first box chamber and the second box chamber through pipelines and pipelines connected with the cold plate.
3. The liquid-cooled battery box of the electric vehicle as claimed in claim 1, wherein: the pipeline for connecting the liquid cooling system with the cold plates comprises a liquid inlet header pipe and a liquid outlet header pipe, the cold plates are arranged in parallel, each cold plate is provided with a group of battery modules, and a liquid inlet joint and the liquid inlet header pipe of each cold plate and a liquid outlet joint and the liquid outlet header pipe of each cold plate are respectively connected through a quick plug-in unit;
the partition beam is provided with a liquid outlet water nozzle and a backflow water nozzle which penetrate through the first box chamber and the second box chamber, the liquid outlet pipes of the liquid inlet main pipe and the liquid cooling system are connected with the liquid outlet water nozzle through the quick plug-in units respectively, and the backflow pipes of the liquid outlet main pipe and the liquid cooling system are connected with the backflow water nozzle through the quick plug-in units respectively.
4. The liquid-cooled battery box of the electric vehicle as claimed in claim 1, wherein: the liquid cooling system comprises a compressor, a condenser, an expansion valve, a heat exchanger, a water pump, a water tank, a PTC heater, a first three-way electromagnetic valve, a second three-way electromagnetic valve and a cooling water temperature sensor, wherein the compressor, the condenser, the expansion valve and the cooling water circulation pipeline of the heat exchanger are respectively electrically connected with the controller, the cooling water circulation pipeline of the compressor, the condenser, the expansion valve and the cooling water temperature sensor are sequentially connected to form a cooling water circulation loop, the cooling water circulation pipeline of the water tank, the water pump, the second three-way electromagnetic valve and the cooling plate of the heat exchanger are sequentially connected to form a cooling water circulation loop, the remaining end of the first three-way electromagnetic valve, the remaining end of the second three-way electromagnetic valve and.
5. The liquid-cooled battery box of an electric vehicle of claim 4, wherein: the air filter is installed in ventilation hole and fan mounting hole, the fan of installation in the fan mounting hole is just to setting up with the condenser.
6. The liquid-cooled battery box of the electric vehicle as claimed in claim 1, wherein: the separation beam is T-shaped, the cavity further comprises a third cavity, the third cavity is used for installing a power supply circuit, wiring holes are formed in the lateral wall of the box body corresponding to the third cavity and the transverse position and the longitudinal position of the separation beam, and the circuit part of the battery module and the circuit part of the liquid cooling system stretch into the third cavity from the wiring holes and then are connected with the power supply circuit.
7. The liquid-cooled battery box of an electric vehicle of claim 6, wherein: the box body comprises a bottom plate and edge beams surrounding the periphery of the bottom plate, the upper cover comprises three cover bodies in one-to-one correspondence with the first box chamber, the second box chamber and the third cavity, an outer skirt edge which is in a shape of a Chinese character 'kou' and is connected with the bottoms of the outer edges of the three cover bodies, and an inner skirt edge which is in a shape of a T and is connected with the bottoms of the adjacent surfaces of the three cover bodies, and sealing gaskets are respectively arranged between the outer skirt edge and the edge beams and between the inner skirt edge and the separation beams.
8. The liquid-cooled battery box of an electric vehicle of claim 7, wherein: the boundary beam, the bottom plate and the cold plate are all aluminum extruded sections; the side beam is characterized in that plugs arranged along the length direction are arranged at the bottoms of the inner side surfaces of the side beams, grooves arranged along the length direction are formed in the peripheral end surfaces of the bottom plate, and the side beams are connected with the bottom plate through the plugs and the grooves in a splicing mode and through friction stir welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020442322.2U CN211654906U (en) | 2020-03-31 | 2020-03-31 | Liquid cooling battery box of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020442322.2U CN211654906U (en) | 2020-03-31 | 2020-03-31 | Liquid cooling battery box of electric automobile |
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| Publication Number | Publication Date |
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| CN211654906U true CN211654906U (en) | 2020-10-09 |
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| CN202020442322.2U Active CN211654906U (en) | 2020-03-31 | 2020-03-31 | Liquid cooling battery box of electric automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000581A (en) * | 2022-08-03 | 2022-09-02 | 烟台宏瑞汽车有限责任公司 | Electric automobile battery box that possesses temperature control system |
| CN115061550A (en) * | 2022-06-20 | 2022-09-16 | 之江实验室 | Distributed thermal management device based on thermoelectric cooler and control method |
| WO2023082618A1 (en) * | 2021-11-12 | 2023-05-19 | 阳光储能技术有限公司 | Energy storage apparatus and dehumidification structure thereof |
-
2020
- 2020-03-31 CN CN202020442322.2U patent/CN211654906U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082618A1 (en) * | 2021-11-12 | 2023-05-19 | 阳光储能技术有限公司 | Energy storage apparatus and dehumidification structure thereof |
| CN115061550A (en) * | 2022-06-20 | 2022-09-16 | 之江实验室 | Distributed thermal management device based on thermoelectric cooler and control method |
| CN115061550B (en) * | 2022-06-20 | 2024-04-26 | 之江实验室 | Distributed thermal management device based on thermoelectric refrigerator and control method |
| CN115000581A (en) * | 2022-08-03 | 2022-09-02 | 烟台宏瑞汽车有限责任公司 | Electric automobile battery box that possesses temperature control system |
| CN115000581B (en) * | 2022-08-03 | 2022-11-04 | 烟台宏瑞汽车有限责任公司 | Electric automobile battery box that possesses temperature control system |
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