CN216488232U - Cooling frame for battery module, battery module and battery pack - Google Patents
Cooling frame for battery module, battery module and battery pack Download PDFInfo
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- CN216488232U CN216488232U CN202121728479.2U CN202121728479U CN216488232U CN 216488232 U CN216488232 U CN 216488232U CN 202121728479 U CN202121728479 U CN 202121728479U CN 216488232 U CN216488232 U CN 216488232U
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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 discloses a cooling frame for a battery module, which comprises an inner plate and an outer sealing plate, wherein the inner plate comprises a plurality of first grooves and a plurality of second grooves which are arranged on a first end plate, a plurality of third grooves which are arranged on a first side plate, a plurality of fourth grooves which are arranged on a second side plate, and a plurality of fifth grooves and a plurality of sixth grooves which are arranged on the second end plate; two ends of the third grooves correspond to the first grooves and the fifth grooves one by one respectively, and two ends of the fourth grooves correspond to the second grooves and the sixth grooves one by one respectively; the first end plate is also provided with a first confluence cavity, and the first grooves and the second grooves are communicated with the first confluence cavity; and a second confluence cavity is also arranged on the second end plate, and the fifth grooves and the sixth grooves are communicated with the second confluence cavity. According to the cooling frame for the battery module, an independent cooling system does not need to be arranged outside the frame, and the size and the weight of the whole battery module are reduced.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a cooling frame for a battery module, the battery module and a battery pack.
Background
With the continuous improvement and development of power battery technology, the application scale of the new energy automobile is greatly expanded, and the power battery is mainly assembled into a battery pack to form an electric energy storage system in the application of the new energy automobile. The power battery mainly comprises a battery module, a BMS (battery management system), a thermal management system, an electrical system, a structural system and the like which are assembled through a grouping process. The inside of a battery pack is formed by connecting several or more than ten modules in series.
The battery module is connected in series-parallel by a plurality of electric core units through collecting electrodes, and the battery module is as the unit of power storage, and the temperature of battery module influences the safety of whole power battery package, and is vital to the thermal management and control of module.
The existing heat management scheme of the battery module mainly comprises the following steps: increase the mode of heat management cooling plate in the bottom of battery module, or increase the mode of heat management cooling plate in the middle of the module, there is the defect in above two kinds of modes: firstly, the heat management cooling plate and the frame of the battery module cannot be integrated together, so that extra weight is generated, and the improvement of the energy density of the battery pack is not facilitated; secondly, the cooling plate can only carry out thermal management control to one end of the electric core unit in the battery module, and the temperature control uniformity is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cooling frame for a battery module, which does not need to arrange an independent cooling system outside the frame and reduces the volume and the weight of the whole battery module.
The cooling frame for the battery module comprises an inner plate and an outer sealing plate coated on the surface of the inner plate, wherein the inner plate comprises a first end plate, a first side plate, a second end plate and a second side plate which are connected end to end, the first end plate and the second end plate are arranged oppositely, and the first side plate and the second side plate are arranged oppositely; the inner plate is provided with a plurality of grooves, and the inner plate comprises a plurality of first grooves and a plurality of second grooves which are arranged on the first end plate, a plurality of third grooves which are arranged on the first side plate, a plurality of fourth grooves which are arranged on the second side plate, and a plurality of fifth grooves and a plurality of sixth grooves which are arranged on the second end plate; two ends of the third grooves correspond to the first grooves and the fifth grooves one by one respectively, and two ends of the fourth grooves correspond to the second grooves and the sixth grooves one by one respectively; the first end plate is also provided with a first confluence cavity, and the plurality of first grooves and the plurality of second grooves are respectively arranged at two sides of the first confluence cavity and are communicated with the first confluence cavity; and a second confluence cavity is also arranged on the second end plate, and the fifth grooves and the sixth grooves are respectively arranged at two sides of the second confluence cavity and are communicated with the second confluence cavity.
In one embodiment, the plurality of second grooves and the plurality of first grooves are symmetrically arranged around the first manifold cavity, and the plurality of sixth grooves and the plurality of fifth grooves are symmetrically arranged around the second manifold cavity.
In one embodiment, the number of the first grooves is four, and the number of the second grooves is four.
In one embodiment, the outer sealing plates comprise a first outer sealing plate arranged on the surface of the first end plate, a second outer sealing plate arranged on the surface of the first side plate, a third outer sealing plate arranged on the surface of the second end plate and a fourth outer sealing plate arranged on the surface of the second side plate; the first outer sealing plate is provided with a cooling liquid inlet communicated with the first confluence cavity, and the third outer sealing plate is provided with a cooling liquid outlet communicated with the second confluence cavity.
In one embodiment, the connecting device further comprises a plurality of connecting pipes, and the connecting pipes are used for penetrating the two adjacent grooves in one-to-one correspondence.
In one embodiment, the connecting pipe comprises a pipe body, a first interface end and a second interface end, wherein the first interface end and the second interface end are arranged at two ends of the pipe body; the positions of the two ends of the first outer sealing plate, the second outer sealing plate, the third outer sealing plate and the fourth outer sealing plate, which correspond to the grooves, are provided with through holes, and the first interface end and the second interface end of the connecting pipe are respectively arranged in the through holes of the adjacent first outer sealing plate and the second outer sealing plate, the adjacent second outer sealing plate and the third outer sealing plate, the adjacent third outer sealing plate and the fourth outer sealing plate, the adjacent fourth outer sealing plate and the first outer sealing plate.
In one embodiment, the connecting tube is further provided with a sensor.
The utility model also provides a battery module, which comprises the cooling frame for the battery module.
In an embodiment, the battery module includes a plurality of battery cell units disposed in the cooling frame for the battery module, the plurality of battery cell units are stacked along the length direction of the first side plate and the second side plate, the inner surface of the inner plate is further provided with a first heat conduction structure, the two ends of each battery cell unit are provided with a second heat conduction structure, and the two ends of each battery cell unit are abutted against the inner plate through the first heat conduction structure and the second heat conduction structure.
The utility model also provides a battery pack comprising the battery module.
In the cooling frame for a battery module, the battery module and the battery pack with the battery module of the embodiment of the utility model, the cooling frame for the battery module comprises an inner plate and an outer sealing plate coated on the surface of the inner plate, the inner plate comprises a first end plate, a first side plate, a second end plate and a second side plate which are connected end to end, the first end plate and the second end plate are arranged oppositely, and the first side plate and the second side plate are arranged oppositely; the inner plate is provided with a plurality of grooves, and the inner plate comprises a plurality of first grooves and a plurality of second grooves which are arranged on the first end plate, a plurality of third grooves which are arranged on the first side plate, a plurality of fourth grooves which are arranged on the second side plate, and a plurality of fifth grooves and a plurality of sixth grooves which are arranged on the second end plate; two ends of the third grooves correspond to the first grooves and the fifth grooves one by one respectively, and two ends of the fourth grooves correspond to the second grooves and the sixth grooves one by one respectively; the first end plate is also provided with a first confluence cavity, and the plurality of first grooves and the plurality of second grooves are respectively arranged at two sides of the first confluence cavity and are communicated with the first confluence cavity; and a second confluence cavity is also arranged on the second end plate, and the fifth grooves and the sixth grooves are respectively arranged at two sides of the second confluence cavity and are communicated with the second confluence cavity. The cooling frame for the battery module is not required to be provided with an independent cooling system outside the frame, so that the volume and the weight of the whole battery module are reduced, furthermore, the two ends of the battery cell unit arranged in the cooling frame for the battery module can conduct heat to the cooling flow channel for heat dissipation, the heat dissipation area is large, the heat dissipation efficiency of the battery cell unit is effectively improved, and the temperature control effect of the whole battery module is good.
Drawings
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the utility model.
Fig. 2 is a schematic structural view of the battery module of fig. 1 with a connection pipe removed.
Fig. 3 is a schematic structural view illustrating a cooling frame for a battery module according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating a structure of the cooling frame for a battery module of fig. 3 without a connection pipe.
Fig. 5 is a schematic structural view illustrating a connection pipe of a cooling frame for a battery module according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description is given to the specific embodiments, structures, features and effects of the present invention in conjunction with the accompanying drawings and examples.
Referring to fig. 1 to 4, the cooling frame for a battery module is used to fix the cell unit 40 and control the temperature of the cell unit 40 to achieve thermal management control, and includes an inner plate 1 and an outer sealing plate 2 coated on the surface of the inner plate 1.
Specifically, the inner panel 1 includes a first end panel 11, a first side panel 12, a second end panel 13, and a second side panel 14 that are connected end to end, the first end panel 11 is disposed opposite to the second end panel 13, and the first side panel 12 is disposed opposite to the second side panel 14. The first end plate 11, the first side plate 12, the second end plate 13 and the second side plate 14 enclose a containing space for placing a plurality of cell units 40.
The inner plate 1 is provided with a plurality of grooves, and the plurality of grooves comprise a plurality of first grooves 111 and a plurality of second grooves 112 arranged on the first end plate 11, a plurality of third grooves 123 arranged on the first side plate 12, a plurality of fourth grooves 144 arranged on the second side plate 14, and a plurality of fifth grooves 135 and a plurality of sixth grooves 136 arranged on the second end plate 13; two ends of the third grooves 123 respectively correspond to the first grooves 111 and the fifth grooves 135, and two ends of the fourth grooves 144 respectively correspond to the second grooves 112 and the sixth grooves 136. The groove is directly carved on the inner plate 1, the outer sealing plate 2 is covered on the surface of the inner plate 1 to form a sealed cooling flow channel for cooling the two ends of the battery cell unit 40, and the whole cooling frame for the battery module is simple in structure.
Further, the first end plate 11 is further provided with a first junction chamber 110, and the plurality of first grooves 111 and the plurality of second grooves 112 are respectively disposed on two sides of the first junction chamber 110 and are communicated with the first junction chamber 110. The second end plate 13 is further provided with a second manifold chamber 130, and the plurality of fifth grooves 135 and the plurality of sixth grooves 136 are respectively disposed on two sides of the second manifold chamber 130 and are communicated with the second manifold chamber 130.
In this embodiment, the plurality of first grooves 111 are radially arranged on one side of the first manifold chamber 110 with the first manifold chamber 110 as a center, and the plurality of second grooves 112 and the plurality of first grooves 111 are symmetrically arranged with the first manifold chamber 110 as a center; the plurality of fifth grooves 135 are radially arranged at one side of the second manifold chamber 130 with the second manifold chamber 130 as a center, and the plurality of sixth grooves 136 and the plurality of fifth grooves 135 are symmetrically arranged with the second manifold chamber 130 as a center. The first groove 111, the second groove 112 and the first junction chamber 110, and the fifth groove 135, the sixth groove 136 and the second junction chamber 130 can reduce the formation of eddy currents in the cooling channel.
Further, the number of the first grooves 111 is four, and the number of the second grooves 112 is four.
The outer closure plate 2 comprises a first outer closure plate 21 disposed on the surface of the first end plate 11, a second outer closure plate 22 disposed on the surface of the first side plate 12, a third outer closure plate 23 disposed on the surface of the second end plate 13, and a fourth outer closure plate 24 disposed on the surface of the second side plate 14. The first outer sealing plate 21 is provided with a coolant inlet 31 communicating with the first manifold chamber 110, and the third outer sealing plate 23 is provided with a coolant outlet 32 communicating with the second manifold chamber 130.
In this embodiment, the cooling frame for the battery module further includes a plurality of connection pipes 15, and the connection pipes 15 are used to penetrate through two adjacent grooves corresponding to each other one by one.
Specifically, as shown in fig. 5, the connection tube 15 includes a tube body 150 and a first interface end 151 and a second interface end 152 provided at both ends of the tube body 150, and an axial direction of the first interface end 151 and an axial direction of the second interface end 152 are perpendicular to each other.
As shown in fig. 2 and 4, through holes 2a are provided at positions corresponding to the grooves at the two ends of the first outer sealing plate 21, the second outer sealing plate 22, the third outer sealing plate 23 and the fourth outer sealing plate 24, and the first interface end 151 and the second interface end 152 of the connecting pipe 15 are respectively provided in the through holes 2a of the adjacent first outer sealing plate 21 and the second outer sealing plate 22, the adjacent second outer sealing plate 22 and the third outer sealing plate 23, the adjacent third outer sealing plate 23 and the fourth outer sealing plate 24, and the adjacent fourth outer sealing plate 24 and the first outer sealing plate 21. Two adjacent grooves are communicated through an external connecting pipe 15, the connecting pipe 15 is provided with a bend, and the flow of the cooling liquid in the two adjacent grooves which are vertically arranged is quicker.
Furthermore, a sensor (not shown) such as a speed sensor and a temperature sensor is further added to the connection pipe 15, and the flow rate and the temperature of the cooling liquid are monitored in real time by the sensor to perform corresponding adjustment.
In this embodiment, the first end plate 11 and the first side plate 12, the second side plate 14, and the second end plate 13 and the first side plate 12, the second side plate 14 are all fixedly connected by welding.
The utility model also relates to a battery module comprising the cooling frame for the battery module. Referring to fig. 1 again, the battery module further includes a plurality of battery cell units 40 disposed in the cooling frame for the battery module, and a bus bar 50. The plurality of battery cell units 40 are stacked along the length direction of the first side plate 12 and the second side plate 14, and two ends of each battery cell unit 40 are respectively abutted against the first side plate 12 and the second side plate 14. Further, a first heat conducting structure (not shown) is further disposed on an inner surface of the inner plate 1 (i.e., a surface close to the cell units 40), a second heat conducting structure (not shown) is disposed at two ends of each cell unit 40, and two ends of the plurality of cell units 40 are abutted against the inner plate 1 through the first heat conducting structure and the second heat conducting structure. The cooling flow channel is integrated on the frame, an independent cooling system does not need to be arranged outside the frame, and the volume and the weight of the whole battery module are reduced; furtherly, the both ends homoenergetic of the electric core unit 40 of setting in the cooling frame for the battery module dispels the heat in with heat conduction to cooling flow channel, and heat radiating area is big, has improved electric core unit 40's radiating efficiency effectively, and whole battery module temperature control effect is good.
The battery module is earlier to carrying out laser welding to the end plate and the curb plate that have set up first heat conduction structure when group will, and the back has been welded, is carrying out the welding of busbar 50, then uses connecting pipe 15 to connect the recess between end plate and the curb plate and makes cooling channel communicate.
The utility model also relates to a battery pack comprising the battery module. After the plurality of battery modules are combined, a total liquid inlet pipe and a total liquid outlet pipe are formed at two ends of each battery module, and a cooling liquid inlet 31 of each battery module is communicated with the total liquid inlet pipe, and a cooling liquid outlet 32 of each battery module is communicated with the total liquid outlet pipe. Other structures of the battery pack are well known to those skilled in the art and will not be described herein.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. The cooling frame for the battery module is characterized by comprising an inner plate (1) and an outer sealing plate (2) coated on the surface of the inner plate (1), wherein the inner plate (1) comprises a first end plate (11), a first side plate (12), a second end plate (13) and a second side plate (14) which are connected end to end, the first end plate (11) and the second end plate (13) are arranged oppositely, and the first side plate (12) and the second side plate (14) are arranged oppositely; the inner plate (1) is provided with a plurality of grooves, and the inner plate comprises a plurality of first grooves (111) and a plurality of second grooves (112) arranged on the first end plate (11), a plurality of third grooves (123) arranged on the first side plate (12), a plurality of fourth grooves (144) arranged on the second side plate (14), and a plurality of fifth grooves (135) and a plurality of sixth grooves (136) arranged on the second end plate (13); two ends of the third grooves (123) respectively correspond to the first grooves (111) and the fifth grooves (135) one by one, and two ends of the fourth grooves (144) respectively correspond to the second grooves (112) and the sixth grooves (136) one by one; the first end plate (11) is also provided with a first confluence cavity (110), and the plurality of first grooves (111) and the plurality of second grooves (112) are respectively arranged at two sides of the first confluence cavity (110) and are communicated with the first confluence cavity (110); the second end plate (13) is further provided with a second confluence cavity (130), and the fifth grooves (135) and the sixth grooves (136) are respectively arranged on two sides of the second confluence cavity (130) and are communicated with the second confluence cavity (130).
2. The cooling frame for battery modules according to claim 1, wherein the plurality of second grooves (112) and the plurality of first grooves (111) are symmetrically disposed about the first manifold chamber (110), and the plurality of sixth grooves (136) and the plurality of fifth grooves (135) are symmetrically disposed about the second manifold chamber (130).
3. The cooling frame for battery modules according to claim 2, wherein the number of the first grooves (111) is four, and the number of the second grooves (112) is four.
4. The cooling frame for battery modules according to claim 1, wherein the outer sealing plate (2) comprises a first outer sealing plate (21) provided on the surface of the first end plate (11), a second outer sealing plate (22) provided on the surface of the first side plate (12), a third outer sealing plate (23) provided on the surface of the second end plate (13), and a fourth outer sealing plate (24) provided on the surface of the second side plate (14); the first outer sealing plate (21) is provided with a cooling liquid inlet (31) communicated with the first confluence cavity (110), and the third outer sealing plate (23) is provided with a cooling liquid outlet (32) communicated with the second confluence cavity (130).
5. The cooling frame for battery modules according to claim 4, further comprising a plurality of connection pipes (15), wherein the connection pipes (15) are adapted to pass through two adjacent grooves in a one-to-one correspondence.
6. The cooling frame for battery modules according to claim 5, wherein the connection pipe (15) comprises a pipe body (150) and first and second interface ends (151, 152) provided at both ends of the pipe body (150), an axial direction of the first interface end (151) and an axial direction of the second interface end (152) being perpendicular to each other; through holes (2a) are formed in the positions, corresponding to the grooves, of two ends of the first outer sealing plate (21), the second outer sealing plate (22), the third outer sealing plate (23) and the fourth outer sealing plate (24), a first interface end (151) and a second interface end (152) of the connecting pipe (15) are respectively arranged in the adjacent through holes (2a) of the first outer sealing plate (21) and the second outer sealing plate (22), the adjacent second outer sealing plate (22) and the third outer sealing plate (23), the adjacent third outer sealing plate (23) and the fourth outer sealing plate (24), and the adjacent fourth outer sealing plate (24) and the first outer sealing plate (21).
7. The cooling frame for battery modules according to claim 5, wherein the connection pipe (15) is further provided with a sensor.
8. A battery module comprising the cooling frame for a battery module according to any one of claims 1 to 7.
9. The battery module according to claim 8, wherein the battery module comprises a plurality of cell units (40) disposed in a cooling frame for the battery module, the cell units (40) are stacked along the length direction of the first side plate (12) and the second side plate (14), a first heat conduction structure is further disposed on the inner surface of the inner plate (1), a second heat conduction structure is disposed at two ends of each cell unit (40), and two ends of each cell unit (40) abut against the inner plate (1) through the first heat conduction structure and the second heat conduction structure.
10. A battery pack comprising the battery module according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121728479.2U CN216488232U (en) | 2021-07-27 | 2021-07-27 | Cooling frame for battery module, battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121728479.2U CN216488232U (en) | 2021-07-27 | 2021-07-27 | Cooling frame for battery module, battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216488232U true CN216488232U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121728479.2U Active CN216488232U (en) | 2021-07-27 | 2021-07-27 | Cooling frame for battery module, battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216488232U (en) |
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2021
- 2021-07-27 CN CN202121728479.2U patent/CN216488232U/en active Active
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