CN211295328U - Battery pack structure - Google Patents
Battery pack structure Download PDFInfo
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- CN211295328U CN211295328U CN202020255288.8U CN202020255288U CN211295328U CN 211295328 U CN211295328 U CN 211295328U CN 202020255288 U CN202020255288 U CN 202020255288U CN 211295328 U CN211295328 U CN 211295328U
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- heat
- hole
- battery pack
- electronic module
- pack structure
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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
Abstract
The embodiment of the application provides a battery pack structure, including casing, electronic module and heat radiation structure, electronic module reaches heat radiation structure all accept in the casing, heat radiation structure includes first heat conduction insulating part, radiating piece and second heat conduction insulating part, first heat conduction insulating part laminate in electronic module, the first surface of radiating piece with first heat conduction insulating part contact, second heat conduction insulating part closely laminate in the second surface of radiating piece with between the casing. The battery pack structure that this application embodiment provided can show the radiating effect who promotes the battery to improve the components and parts of battery and the life of electric core, and can also improve the safety and the stability of battery.
Description
Technical Field
The present application relates to a battery pack structure.
Background
Batteries have the advantages of high energy density, high power density, many cycles, long storage time, etc., and are therefore widely used in daily life. In practical applications, in a Battery Management System (BMS) equipped in an existing battery pack, heat generated from an electronic module (e.g., a MOS transistor) is concentrated inside the battery pack. In this case, with the increase of the service time, the actual service life of the battery cell and the components in the battery pack will be affected due to the over-high internal temperature of the battery pack.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a battery pack structure, which can effectively improve the heat dissipation effect of the battery, thereby improving the service life of the components and cells of the battery, and also improving the safety and stability of the battery.
One embodiment of the present application provides a battery pack structure, including a housing, an electronic module, and a heat dissipation structure, where the electronic module and the heat dissipation structure are both accommodated in the housing, and the heat dissipation structure includes a first heat-conducting insulating member, a heat dissipation member, and a second heat-conducting insulating member;
the first heat-conducting insulating piece is attached to the electronic module;
a first surface of the heat sink is in contact with the first thermally conductive insulator; and
the second heat-conducting insulating piece is tightly attached between the second surface of the heat dissipation piece and the shell.
According to some embodiments of the present application, the first surface and the second surface of the heat sink are disposed opposite to each other.
According to some embodiments of the present application, the battery pack structure further includes a first circuit board, the electronic module is disposed on the first circuit board, and the heat dissipation structure further includes a third heat conductive insulating member in contact with the first circuit board.
According to some embodiments of the present application, the first surface of the heat sink extends downward to form a heat conduction portion, and the heat conduction portion is in contact with the third heat conduction insulator.
According to some embodiments of the present application, the third thermally conductive insulator is coated on the bottom of the thermally conductive part or the first circuit board.
According to some embodiments of the present application, a bottom of the heat conducting portion is provided with a first fixing hole, the first circuit board is provided with a first through hole, the third heat conducting insulating member is provided with a second through hole, and the first fixing hole is in butt joint with the first through hole and the second through hole.
According to some embodiments of the present application, the battery pack structure further includes a support plate and a first fixing member, a first end of the first fixing member sequentially passes through the first through hole and the second through hole to be locked in the first fixing hole, and a second end of the first fixing member is fixed to the support plate.
According to some embodiments of the present application, the battery pack structure further includes a second circuit board, the second circuit board is provided with a third through hole, the first end of the first fixing member sequentially passes through the third through hole, the first through hole and the second through hole to be fixed in the first fixing hole, and the second end of the first fixing member abuts against the supporting plate.
According to some embodiments of the application, the heat sink is substantially T-shaped, and the electronic module is disposed below the first surface of the heat sink.
According to some embodiments of the application, the electronic module comprises a MOS transistor.
The battery pack structure that this application embodiment provided, through laminating first heat conduction insulator in electronic module, with the first surface and the contact of first heat conduction insulator of radiating piece to closely laminate second heat conduction insulator between the second surface and the casing of radiating piece. Therefore, the heat generated by the electronic module can be conducted out of the shell through the heat dissipation structure. The battery pack structure that this application embodiment provided can show the radiating effect who promotes the battery to improve the components and parts of battery and the life of electric core, and can also improve the safety and the stability of battery.
Drawings
Fig. 1 is a schematic structural view of a battery pack structure according to an embodiment of the present application.
Fig. 2 is an exploded perspective view of a battery pack structure according to an embodiment of the present application.
Fig. 3 is an exploded perspective view of the battery pack structure shown in fig. 2 from another perspective.
Fig. 4 is a schematic structural diagram of the heat dissipation structure shown in fig. 2.
Fig. 5 is a schematic sectional view of the battery pack structure shown in fig. 1 taken along the V-V direction.
Description of the main elements
First heat conductive insulator 31
Heat sink 32
First fixing hole 324
Second thermally conductive insulator 33
Third thermally conductive insulator 34
Second via 342
First through hole 42
Supporting plate 50
First fixing member 60
Third via hole 72
Fourth via 74
The following detailed description will explain the present application in further detail in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application.
All other embodiments that can be obtained by a person skilled in the art without inventive step based on the embodiments in this application are within the scope of protection of this application.
Referring to fig. 1 and fig. 2, a battery pack structure 100 is provided according to an embodiment of the present disclosure. The battery pack structure 100 includes a case 10, an electronic module 20, and a heat dissipation structure 30.
The electronic module 20 and the heat dissipation structure 30 are both accommodated in the housing 10, wherein the housing 10 may include an upper cover and a middle frame. In some embodiments of the present application, the electronic module 20 may include a MOS transistor. Wherein the electronic module 20 generates heat after being powered on.
In the present embodiment, the heat dissipation structure 30 may include a first heat conduction insulator 31, a heat dissipation member 32, and a second heat conduction insulator 33.
Specifically, the first heat conducting insulator 31 is attached to the electronic module 20, the first surface of the heat sink 32 is in contact with the first heat conducting insulator 31, and the second heat conducting insulator 33 is closely attached between the second surface of the heat sink 32 and the housing 10, so as to achieve heat conduction.
Therefore, the heat dissipation structure 30 is attached between the electronic module 20 and the housing 10, so that heat generated by the electronic module 20 can be transferred to the housing 10, and thus, a large surface area of the housing 10 can be fully utilized for heat dissipation, and the heat dissipation effect of the battery can be effectively improved.
It is understood that in some embodiments of the present application, the first and second surfaces of the heat dissipation member 32 may be any surface of the heat dissipation member. That is, the first heat-conducting insulator 31 may contact with any surface of the heat sink 32, and the second heat-conducting insulator 33 may contact with any surface of the heat sink 32, so that the heat of the electronic module 20 is only conducted to the housing 20 through the heat sink 32.
Alternatively, in some preferred embodiments of the present application, the first surface and the second surface of the heat dissipation member 32 may be oppositely disposed. It is to be understood that, in the preferred embodiment of the present application, the first surface of the heat dissipation member 32 may also be parallel to the second surface. That is, in the preferred embodiment of the present invention, the first heat conductive insulator 31 and the second heat conductive insulator 33 may be sequentially stacked on the first surface and the second surface of the heat sink 32. Therefore, the heat of the electronic module 20 can be better conducted to the housing 20 through the heat dissipation member 32, so as to achieve better and excellent heat dissipation effect.
In an embodiment of the present invention, the heat dissipation element 32 has good thermal conductivity, that is, the heat dissipation element 32 may be made of metal (such as copper, aluminum, gold, silver, etc.), plastic, or a composite material of plastic and metal.
In the present embodiment, the first heat conductive insulator 31 and the second heat conductive insulator 33 both have good heat conductivity. The first and second heat conductive insulators 31 and 33 may preferably be heat conductive silicone pads. In some embodiments of the present application, the first thermally conductive and insulating member 31 and the second thermally conductive and insulating member 33 may also be made of other thermally conductive and insulating materials.
Further, the battery pack structure 100 may further include a first circuit board 40, whereby the electronic module 20 may be disposed on the first circuit board 40.
The electronic module 20 is soldered on the first circuit board 40, and the first heat conductive insulator 31 is attached between the electronic module 20 and the first surface of the heat sink 32 to absorb heat of the electronic module 20 and insulate the electronic module 20 from the heat sink 32.
In a preferred embodiment, the heat dissipation structure 30 may further include a third thermally conductive and insulating member 34. Wherein the third thermally conductive and insulating member 34 is contactable with the first circuit board 40.
In this embodiment, the first surface of the heat sink 32 may further extend downward to form a heat conduction portion 322. The thermal conduction portion 322 may be in contact with the third thermally conductive and insulating member 34. Therefore, the heat on the first circuit board 40 can be conducted to the heat sink 32 through the third thermally conductive insulating member 34, and the first circuit board 40 can be insulated from the thermal conducting portion 322 at the bottom of the heat sink 32. It is understood that, in the present embodiment, the heat dissipation member 32 has a substantially T-shape, and the electronic module 20 is disposed below the first surface of the heat dissipation member 32.
In the present embodiment, the third thermally conductive insulator 34 may preferably be a thermally conductive silicone pad. In other embodiments, the third thermally conductive and insulating member 34 may be made of other thermally conductive and insulating materials.
Referring to fig. 3 and 4, in a preferred embodiment, the battery pack structure 100 may further include a support plate 50 and a first fixing member 60.
The bottom of the heat conduction portion 322 may be provided with a first fixing hole 324, the first circuit board 40 may be provided with a first through hole 42, and the third heat conductive insulator 34 may be provided with a second through hole 342. Wherein the first fixing hole 324 is butted with the first through hole 42 and the second through hole 342.
In this embodiment, the first end of the first fixing member 60 can sequentially pass through the first through hole 42 and the second through hole 342 to be locked in the first fixing hole 324, and the second end of the first fixing member 60 abuts against the supporting plate 50. Thus, the first fixing member 60 may fixedly connect the first circuit board 40, the third thermally conductive and insulating member 34, and the heat sink 32 together.
In addition, when the electronic module is assembled, the housing 10 presses the second heat conducting insulator 33, the electronic module 20 and the heat sink 32 press the first heat conducting insulator 31, and the first heat conducting insulator 31 can be tightly attached between the electronic module 20 and the second surface of the heat sink 32 after the first fixing member 60 is locked in the first fixing hole 324.
Since the second thermally conductive insulating member 33 is compressed, the whole first circuit board 40 is subjected to a very large force, which easily causes the risk of bending and cracking of the board, and the supporting plate 50 can bear a part of the force generated in the pressing process by locking the first fixing member 60 behind the first fixing hole 324, thereby avoiding the risk of bending and cracking of the board.
In a preferred embodiment, the battery pack structure 100 may further include a second circuit board 70.
The second circuit board 70 may be provided with a third through hole 72. In this embodiment, the third through hole 72 can be connected to the first fixing hole 324, the first through hole 42 and the second through hole 342.
Therefore, the first end of the first fixing member 60 can sequentially pass through the third through hole 72, the first through hole 42 and the second through hole 342 to be locked in the first fixing hole 324, and the second end of the first fixing member 60 is fixed on the supporting plate 50. Thus, the first fixing member 60 can also fixedly connect the second circuit board 70, the first circuit board 40, the third thermally conductive and insulating member 34, and the heat sink 32 together.
In some embodiments of the present application, the third heat conducting insulating element 34 may be heat conducting insulating glue, that is, the heat dissipating element 32 may be fixed to the first circuit board 40, and the third heat conducting insulating element 34 is coated on the bottom of the heat conducting portion 322 or the first circuit board 40. This also provides the first circuit board 40 with insulation and heat conduction effects with the bottom of the heat conduction portion 322.
In some embodiments of the present application, the battery pack structure 100 further includes a second fixing member 80, the second circuit board 70 may further be provided with a fourth through hole 74, and the support plate 50 may further be provided with a second fixing hole 52.
Wherein the fourth through hole 74 can interface with the second fixing hole 52. The second fixing member 80 can pass through the fourth through hole 74 to be locked in the second fixing hole 52. Thereby, the second fixing member 80 may fixedly connect the second circuit board 70 with the support plate 50.
In a preferred embodiment, the first fixing hole 324 and the second fixing hole 52 are both preferably screw holes, and the first fixing member 60 and the second fixing member 80 are both preferably screws.
Referring to fig. 5, it can be seen that the first heat-conducting insulating member 31 is tightly attached between the electronic module 20 and the second surface of the heat dissipation member 32, the second heat-conducting insulating member 33 is tightly attached between the first surface of the heat dissipation member 32 and the housing 10, and the third heat-conducting insulating member 34 is tightly attached between the first circuit board 40 and the bottom of the heat conduction portion 322 of the heat dissipation member 32. Thus, the heat generated by the electronic module 20 can be conducted to the heat sink 32 through the first heat-conducting insulator 31, and the heat on the first circuit board 40 will also be conducted to the heat sink 32 through the third heat-conducting insulator 34, and the heat sink 32 will then conduct the heat to the housing 10 through the second heat-conducting insulator 33 for heat dissipation. Therefore, the battery pack structure 100 according to the embodiment of the present invention can reduce the number of MOS transistors used in design and reduce the production cost by conducting the heat generated by the MOS transistors to the housing 10, that is, when the MOS transistors dissipate heat well. In addition, the heat dissipation requirement required by the product can be met by improving the internal structure of the battery.
From this, the battery pack structure that this application embodiment provided can show the radiating effect who promotes the battery to improve the components and parts of battery and the life of electric core, and can also improve the safety and the stability of battery.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and changes of the above embodiments are within the scope of the claims of the present application as long as they are within the spirit and scope of the present application.
Claims (10)
1. A battery pack structure comprises a shell, an electronic module and a heat dissipation structure, wherein the electronic module and the heat dissipation structure are accommodated in the shell;
the first heat-conducting insulating piece is attached to the electronic module;
a first surface of the heat sink is in contact with the first thermally conductive insulator; and
the second heat-conducting insulating piece is tightly attached between the second surface of the heat dissipation piece and the shell.
2. The battery pack structure according to claim 1, wherein the first surface of the heat sink is disposed opposite to the second surface.
3. The battery pack structure of claim 2, further comprising a first circuit board on which the electronic module is disposed, the heat dissipation structure further comprising a third thermally conductive insulator in contact with the first circuit board.
4. The battery pack structure according to claim 3, wherein the first surface of the heat sink extends downward to form a heat conduction portion, and the heat conduction portion is in contact with the third heat-conductive insulating member.
5. The battery pack structure according to claim 4, wherein the third thermally conductive insulating member is coated on the bottom of the thermally conductive part or the first circuit board.
6. The battery pack structure according to claim 4, wherein a first fixing hole is formed at a bottom of the heat conductive part, the first circuit board is provided with a first through hole, the third heat conductive insulating member is provided with a second through hole, and the first fixing hole is in butt joint with the first through hole and the second through hole.
7. The battery pack structure according to claim 6, further comprising a support plate and a first fixing member, wherein a first end of the first fixing member sequentially passes through the first through hole and the second through hole to be locked in the first fixing hole, and a second end of the first fixing member is fixed to the support plate.
8. The battery pack structure according to claim 7, further comprising a second circuit board having a third through hole, wherein the first end of the first fixing member sequentially passes through the third through hole, the first through hole and the second through hole to be fixed in the first fixing hole, and the second end of the first fixing member abuts against the support plate.
9. The battery pack structure of claim 4, wherein the heat sink is generally T-shaped, and the electronic module is disposed below the first surface of the heat sink.
10. The battery pack structure of claim 1, wherein the electronic module comprises a MOS transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020255288.8U CN211295328U (en) | 2020-03-04 | 2020-03-04 | Battery pack structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020255288.8U CN211295328U (en) | 2020-03-04 | 2020-03-04 | Battery pack structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211295328U true CN211295328U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020255288.8U Active CN211295328U (en) | 2020-03-04 | 2020-03-04 | Battery pack structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110190A1 (en) * | 2020-11-30 | 2022-06-02 | 东莞新能安科技有限公司 | Battery module, battery pack, and powered device |
| WO2023098878A1 (en) * | 2021-12-02 | 2023-06-08 | 东莞新能安科技有限公司 | Battery pack, method for manufacturing battery pack, and electric apparatus |
-
2020
- 2020-03-04 CN CN202020255288.8U patent/CN211295328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110190A1 (en) * | 2020-11-30 | 2022-06-02 | 东莞新能安科技有限公司 | Battery module, battery pack, and powered device |
| WO2023098878A1 (en) * | 2021-12-02 | 2023-06-08 | 东莞新能安科技有限公司 | Battery pack, method for manufacturing battery pack, and electric apparatus |
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