Anti-extrusion lithium battery soft package protection frame

Abstract

The utility model relates to anti -extrusion type lithium cell soft package protection frame belongs to lithium cell soft package frame technical field, including intermediate frame, the upper end and the lower end of intermediate frame are connected with upper frame body and lower frame body respectively, and the side of upper frame body and lower frame body is all seted up through -hole, and the inside of upper frame body and lower frame body is all arrayed and is installed with the rib -strip, and the elastic rubber block and the heat dissipation strip of U type structure are installed alternately between the rib -strip, and the side fixed mounting of elastic rubber block has the contact plate, adopt the rib -strip and the rib -plate, when being extruded outside, will extrusion force be conducted to the mounting plate in the intermediate frame, reduce the extrusion effect that the lithium cell soft package in the inside is received, and when using, by the outside refrigerant is passed into the heat dissipation strip, through sealing sheet and heat conduction fin, the battery is cooled down, the accumulation of heat is reduced, and through the cooperation of heat dissipation hole and sealing sheet, when not passing in the refrigerant, through the flow of external air, also can reach the effect of auxiliary heat dissipation, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery soft pack frame technology, and in particular to an anti-compression lithium battery soft pack protective frame. Background Technology

[0002] Soft-pack lithium batteries are widely used in new energy vehicles and energy storage systems due to their lightweight, high energy density, and high customizability. Unlike traditional hard-shell batteries, soft-pack batteries are often encapsulated with an aluminum-plastic film, which has relatively weak mechanical strength. Therefore, they require a support structure for fixation and protection to ensure the stability of the battery pack under complex operating conditions. Currently, protective frames are often used to package soft-pack lithium batteries. However, these frames have lower resistance to compression during use. When compressed, the pressure is transmitted to the soft-pack lithium battery, causing deformation and damage to the battery. Furthermore, the strong enclosure reduces the area of ​​the lithium battery exposed to the outside environment, preventing heat dissipation and leading to heat accumulation, which can affect safety during use. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a compression-resistant lithium battery soft pack protective frame, which has strong compression resistance and can effectively transfer the force to the outside when compressed, avoiding the load on the lithium battery soft pack. In addition, it can effectively cool down the lithium battery soft pack during use and reduce the accumulation of heat.

[0004] The technical solution adopted in this utility model is: a compression-resistant lithium battery soft-pack protective frame, including a middle frame, with an upper frame and a lower frame respectively connected to the upper and lower ends of the middle frame. The lithium battery soft pack is fixed in the space formed by the middle frame, the upper frame, and the lower frame. Each side of the upper frame and the lower frame has a through hole for connecting the lithium battery soft pack circuit. Ribs are arranged in an array inside the upper frame and the lower frame. Elastic rubber blocks and U-shaped heat dissipation strips are alternately installed between the ribs. The two ends of the heat dissipation strips are connected to the outside. A contact plate is fixedly installed on one side of the elastic rubber block. The contact plate is bonded to the lithium battery soft pack. In use, the lithium battery soft pack is installed in the space formed by the middle frame, the upper frame, and the lower frame. Both sides of the lithium battery soft pack are bonded to the contact plate. The elastic rubber block buffers the vibrations it receives. The ribs increase the load-bearing capacity of the upper and lower frames and improve the compression resistance. The heat dissipation strips facilitate the rapid dissipation of heat generated by the lithium battery soft pack during use, reducing heat accumulation.

[0005] Preferably, extension frames are fixedly installed on both the upper and lower sides of the middle frame, and a notch is opened at one end of the inner side of the upper frame and the lower frame. The extension frame is inserted into the inside of the notch. Through the extension frame and the notch, the sealing performance of the connection between the upper frame and the lower frame and the middle frame is improved.

[0006] Preferably, mounting plates are fixed on both the left and right sides of the middle frame, and fixing holes are provided on the mounting plates. Ribs are fixedly installed on both the left and right sides of the upper frame and the lower frame. The ribs are fixedly connected to the mounting plates by bolts. The ribs facilitate the fixed connection between the upper frame and the lower frame and the middle frame, and the mounting plates facilitate the overall installation of this technical solution at a predetermined external position.

[0007] Preferably, one side of the elastic rubber block protrudes from the rib, and the side of the contact plate that contacts the lithium battery soft pack has grooves arranged in an array. The inside of the grooves is coated with adhesive for bonding the contact plate and the lithium battery soft pack. The grooves improve the connection stability between the contact plate and the lithium battery soft pack after the adhesive is applied, and the elastic rubber block helps to buffer vibrations when subjected to vibrations.

[0008] Preferably, a connecting pipe is fixedly installed on both sides of the heat dissipation strip. The connecting pipe extends to the outside of the upper frame and the lower frame. Through the connecting pipe, external refrigerant (cooling air or coolant) can be introduced into the heat dissipation strip to accelerate the heat dissipation effect on the lithium battery pack.

[0009] Preferably, sealing sheets made of thermally conductive rubber are fixedly installed on both sides of the heat dissipation strip. The sealing sheets have a U-shaped structure, and one side of the sealing sheet is fixedly connected to the rib strip to improve the heat conduction effect, heat dissipation performance and sealing performance.

[0010] Preferably, one side of the sealing sheet is integrally formed with a heat-conducting fin, which is in contact with one side of the lithium battery pouch, so as to facilitate the conduction of heat emitted by the lithium battery pouch to the sealing sheet, and then conduct it to the outside through heat exchange, thereby reducing the accumulation of heat.

[0011] Preferably, the upper frame and the lower frame are provided with heat dissipation holes arranged in an array on one side of the sealing sheet to accelerate the air circulation between one side of the sealing sheet and the outside, and facilitate heat dissipation.

[0012] The beneficial effects of this utility model are as follows: by using ribs and stiffeners, when subjected to external compression, the compressive force is transmitted to the mounting plate in the middle frame, reducing the compression effect on the internal lithium battery soft pack and improving the compression resistance. In use, by introducing external refrigerant into the heat dissipation strip, the battery can be cooled through the sealing sheet and heat-conducting fins, reducing heat accumulation. Furthermore, through the cooperation of the heat dissipation holes and the sealing sheet, even when no refrigerant is introduced, the flow of external air can also achieve an auxiliary heat dissipation effect, making it convenient to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model after an explosion;

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is a structural diagram of the lower frame position in this utility model;

[0016] Figure 4 This is a schematic diagram of the lower frame of this utility model;

[0017] Figure 5 This is a structural schematic diagram of the contact plate position in this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the heat dissipation strip after partial cross-section.

[0019] Explanation of reference numerals in the attached drawings: 1. Middle frame; 2. Upper frame; 3. Lower frame; 4. Through hole; 5. Rib; 6. Elastic rubber block; 7. Heat dissipation strip; 8. Contact plate; 9. Extension frame; 10. Notch; 11. Mounting plate; 12. Fixing hole; 13. Rib plate; 14. Groove; 15. Connecting pipe; 16. Sealing sheet; 17. Heat-conducting fins; 18. Heat dissipation hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-6As shown, this embodiment provides a compression-resistant lithium battery soft pack protective frame, including a middle frame 1. An upper frame 2 and a lower frame 3 are connected to the upper and lower ends of the middle frame 1, respectively. The lithium battery soft pack is fixed in the space formed by the middle frame 1, the upper frame 2, and the lower frame 3. One side of both the upper frame 2 and the lower frame 3 has through holes 4 for connecting the lithium battery soft pack circuitry, facilitating the installation of the circuit board or circuitry of the lithium battery soft pack. Ribs 5 are arranged in an array inside both the upper frame 2 and the lower frame 3. Elastic rubber blocks 6 and U-shaped heat dissipation strips 7 are alternately installed between the ribs 5. Both ends of the heat dissipation strips 7 are connected to the outside. A contact plate 8 is fixedly installed on one side of the elastic rubber block 6. The contact plate 8... The lithium battery pouch is bonded together. During use, adhesive is first applied to the contact plate 8, and then the lithium battery pouch is installed in the space formed by the middle frame 1, upper frame 2, and lower frame 3. The lithium battery pouch is fixedly connected to the contact plate 8 by the adhesive. When subjected to impact or vibration, the elastic rubber block 6 buffers the vibration force. During use, the ribs 5 improve the compression resistance of the upper frame 2 and lower frame 3, preventing the compression force from being transmitted to the lithium battery pouch. During use, when the lithium battery pouch generates heat, refrigerant is introduced into the heat dissipation strip 7 to accelerate heat dissipation, reduce heat accumulation in the lithium battery pouch, and improve safety during use.

[0022] As a technical optimization solution of this utility model, specifically as follows: Figure 1 and Figure 3 As shown, extension frames 9 are fixedly installed on both the upper and lower sides of the middle frame 1, and notches 10 are opened on one end of the inner side of the upper frame 2 and the lower frame 3. The extension frames 9 are inserted into the notches 10. Mounting plates 11 are fixed on both the left and right sides of the middle frame 1. Mounting plates 11 have fixing holes 12. Ribs 13 are fixedly installed on both the left and right sides of the upper frame 2 and the lower frame 3. The ribs 13 are fixedly connected to the mounting plates 11 by bolts. During installation, after the lithium battery soft pack is assembled, the fixing holes 12 on the mounting plates 11 facilitate the overall installation in the set position. During the assembly of the lithium battery soft pack, the notches 10 and extension frames 9 improve the stability of the connection between the middle frame 1 and the upper frame 2 and the lower frame 3. The ribs 13 not only facilitate the installation of the upper frame 2 and the lower frame 3 on the middle frame 1, but also improve the load-bearing capacity when subjected to compression, and facilitate the transmission of the force under compression to the mounting plates 11, thus preventing the lithium battery soft pack from being squeezed.

[0023] As a technical optimization solution of this utility model, specifically as follows: Figure 5As shown, one side of the elastic rubber block 6 protrudes from the rib 5, and the side of the contact plate 8 that contacts the lithium battery soft pack has grooves 14 arranged in an array. The inside of the grooves 14 is coated with adhesive for bonding between the contact plate 8 and the lithium battery soft pack. The grooves 14 improve the connection stability when installing the lithium battery soft pack, and after installation, facilitate the transmission of vibration force to the elastic rubber block 6, thereby improving the shock absorption effect of the lithium battery soft pack.

[0024] As a technical optimization solution of this utility model, specifically as follows: Figure 4 and Figure 6 As shown, connecting pipes 15 are fixedly installed on both sides of the heat dissipation strip 7, extending to the outside of the upper frame 2 and the lower frame 3. Sealing sheets 16 made of thermally conductive rubber are fixedly installed on both sides of the heat dissipation strip 7. The sealing sheets 16 have a U-shaped structure, and one side of the sealing sheet 16 is fixedly connected to the reinforcing rib 5. A thermally conductive fin 17 is integrally formed on one side of the sealing sheet 16, contacting one side of the lithium battery soft pack. Heat dissipation holes 18 are arrayed on the upper frame 2 and the lower frame 3 on one side of the sealing sheet 16. During use, when the lithium... When the battery pack generates heat during operation, the refrigerant (cooled air or coolant) is easily transported to the interior of the heat sink 7 through the connecting pipe 15 and circulated to quickly dissipate the heat generated on the lithium battery pack. Furthermore, the sealing sheet 16 and the heat-conducting fins 17 not only improve the heat conduction effect but also prevent the heat dissipation hole 18 from being connected to the lithium battery pack, thus improving the sealing performance of the lithium battery pack. This also allows external air to come into contact with the sealing sheet 16 through the heat dissipation hole 18, facilitating the conduction of heat from the sealing sheet 16 to the outside and improving the natural heat dissipation performance.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. An anti-compression lithium battery soft-pack protective frame, characterized in that: The system includes a middle frame (1), with an upper frame (2) and a lower frame (3) connected to the upper and lower ends of the middle frame (1), respectively. The lithium battery soft pack is fixed in the space formed by the middle frame (1), the upper frame (2), and the lower frame (3). The upper frame (2) and the lower frame (3) each have through holes (4) for connecting the lithium battery soft pack circuit on one side. The upper frame (2) and the lower frame (3) each have ribs (5) arranged in an array inside. Elastic rubber blocks (6) and U-shaped heat dissipation strips (7) are installed alternately between the ribs (5). The two ends of the heat dissipation strips (7) are connected to the outside. A contact plate (8) is fixedly installed on one side of the elastic rubber block (6). The contact plate (8) is bonded to the lithium battery soft pack.

2. The compression-resistant lithium battery soft-pack protective frame according to claim 1, characterized in that: The upper and lower sides of the middle frame (1) are fixedly installed with extension frames (9), and the inner side of the upper frame (2) and the lower frame (3) is provided with a notch (10), and the extension frame (9) is inserted into the notch (10).

3. The compression-resistant lithium battery soft-pack protective frame according to claim 1, characterized in that: Mounting plates (11) are fixed on both the left and right sides of the middle frame (1). Fixing holes (12) are provided on the mounting plates (11). Ribs (13) are fixedly installed on both the left and right sides of the upper frame (2) and the lower frame (3). The ribs (13) are fixedly connected to the mounting plates (11) by bolts.

4. The compression-resistant lithium battery soft-pack protective frame according to claim 1, characterized in that: One side of the elastic rubber block (6) protrudes from the rib (5), and the side of the contact plate (8) that contacts the lithium battery soft pack has grooves (14) arranged in an array. The inside of the grooves (14) is coated with adhesive for bonding between the contact plate (8) and the lithium battery soft pack.

5. The compression-resistant lithium battery soft-pack protective frame according to claim 1, characterized in that: Both sides of the heat dissipation strip (7) are fixedly installed with connecting pipes (15), which extend to the outside of the upper frame (2) and the lower frame (3).

6. The compression-resistant lithium battery soft-pack protective frame according to claim 1, characterized in that: Both sides of the heat dissipation strip (7) are fixedly installed with sealing sheets (16) made of thermally conductive rubber. The sealing sheet (16) has a U-shaped structure, and one side of the sealing sheet (16) is fixedly connected to the rib (5).

7. The compression-resistant lithium battery soft-pack protective frame according to claim 6, characterized in that: One side of the sealing sheet (16) is integrally formed with a heat-conducting fin (17), which is in contact with one side of the lithium battery soft pack.

8. The compression-resistant lithium battery soft-pack protective frame according to claim 7, characterized in that: The upper frame (2) and the lower frame (3) are provided with heat dissipation holes (18) arranged in an array on one side of the sealing sheet (16).

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