Novel metal battery cell heat insulation insertion sheet

Abstract

The utility model discloses a novel metal battery cell heat insulation insertion sheet which comprises a heat insulation layer, the two mounting frames are fixedly connected to the two sides of the heat insulation layer respectively; the two buffer layers are fixedly connected to the sides, away from each other, of the two mounting frames correspondingly, and each buffer layer comprises a plurality of buffer parts; a gap is reserved between every two adjacent buffering pieces to form a heat dissipation channel. The buffering piece is provided with a plurality of buffering through holes, and buffering cavities extending towards the two sides of the buffering through holes are formed in the inner walls of the buffering through holes. When an automobile is suddenly braked or impacted, the battery cell extrudes the battery pack, the buffer piece deforms towards the heat insulation layer, so that the buffer effect is achieved, the buffer through hole and the buffer cavity provide space for deformation of the buffer piece, and the buffer performance of the buffer piece is further improved; on the other hand, the heat dissipation channels are arranged between the adjacent buffer pieces, air circulation is facilitated, and heat dissipation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation, in particular to a novel metal battery core heat insulation plug-in sheet. Background Art

[0002] Thermal runaway protection between cells in new energy vehicle battery modules is one of the key factors affecting vehicle safety. In order to achieve the purpose of thermal runaway protection, thermal insulation sheets are usually used between the cells in new energy vehicle battery modules to ensure battery safety. Generally, sheet-shaped thermal insulation materials are installed between two cells for thermal insulation. Existing thermal insulation sheets usually only have thermal insulation properties and do not have good buffering properties. When the car brakes suddenly or is hit, the battery box will be impacted by inertia. At this time, the cells in the battery box may also be impacted, which in turn affects the performance of the cells. Utility Model Content

[0003] The utility model aims to provide a novel metal battery core heat-insulating insert, which can absorb the mutual squeezing force between battery cores when a car brakes suddenly or is hit, and play a buffering role.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel metal battery core heat-insulating insert, characterized by comprising:

[0006] Insulation layer;

[0007] Two installation frames, the two installation frames are respectively fixedly connected to two sides of the thermal insulation layer;

[0008] Two buffer layers, the two buffer layers are respectively fixedly connected to the sides of the two mounting frames away from each other, and the buffer layers include a plurality of buffer parts; a gap is left between two adjacent buffer parts to form a heat dissipation channel; the buffer parts are provided with a plurality of buffer through holes, and the inner walls of the buffer through holes are provided with buffer cavities extending to both sides of the buffer through holes.

[0009] Furthermore, the thermal insulation layer comprises:

[0010] Thermal insulation sheet;

[0011] Two protective films are respectively arranged on both sides of the thermal insulation plate. The protective films include a fitting portion fitted with the thermal insulation plate. The edge of the fitting portion extends outward to form an extension portion. The extension portions of the two protective films are fixedly connected.

[0012] Furthermore, the thermal insulation sheet is aerogel felt.

[0013] Furthermore, the protective film is a PET film.

[0014] Furthermore, the installation frame includes:

[0015] A frame, wherein a mounting groove is provided on one side of the frame close to the heat insulation layer;

[0016] A support member, wherein the support member is fixedly connected in the installation frame;

[0017] The extending parts of the two protective films are fixedly connected between the two frames, and the fitting parts of the two protective films and the heat insulation sheet are fixedly connected between the two installation grooves.

[0018] Furthermore, the support member is a grid structure.

[0019] Furthermore, the buffer component is made of silicone.

[0020] Furthermore, a distance is left between the end faces of the two installation frames and the end face of the buffer layer to form an inserting portion.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] When the car brakes suddenly or is hit, the battery cell squeezes the utility model, and the buffer component deforms toward the insulation layer, thereby playing a buffering role. The buffer through hole and the buffer cavity provide space for the deformation of the buffer component, further improving the buffering performance of the buffer component. On the other hand, a heat dissipation channel is provided between adjacent buffer components to facilitate air circulation and easy heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 for Figure 1 A magnified image of point A;

[0025] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0026] Figure 4 Schematic diagram of the internal structure of the thermal insulation layer;

[0027] Figure 5 for Figure 4 The enlarged view of point B;

[0028] Figure 6 It is a structural diagram of the installation frame;

[0029] Figure 7 It is a schematic diagram of the internal structure of the installation frame and the heat insulation sheet;

[0030] Figure 8 for Figure 7 Enlarged view of point C;

[0031] Fig. 9 This is a schematic diagram of the installation structure of the utility model;

[0032] Fig.10 for Fig. 9 Enlarged view of point D.

[0033] In the figure: 1. thermal insulation layer; 11. thermal insulation sheet; 12. protective film; 121. fitting portion; 122. extension portion; 2. mounting frame; 21. frame body; 22. support member; 23. mounting groove; 24. plug-in portion; 3. buffer member; 31. buffer through hole; 32. buffer cavity; 4. heat dissipation channel; 5. battery box; 51. heat dissipation through hole; 52. slot; 6. battery cell. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-10 , an embodiment provided by the utility model:

[0036] A novel metal battery core heat-insulating insert comprises a heat-insulating layer 1, two mounting frames 2, and two buffer layers;

[0037] The two mounting frames 2 are fixedly connected to both sides of the thermal insulation layer 1 respectively;

[0038] The two buffer layers are respectively fixedly connected to the sides of the two mounting frames 2 away from each other, and the buffer layers include a plurality of buffer members 3; the buffer members 3 are long strip structures, and a gap is left between two adjacent buffer members 3 to form a heat dissipation channel 4; the buffer members 3 are provided with a plurality of buffer through holes 31, and the inner wall of the buffer through hole 31 is provided with a buffer cavity 32 extending to the upper and lower sides of the buffer through hole 31; the buffer through hole 31 and the buffer cavity 32 both penetrate the buffer member 3. When the car brakes suddenly or is hit, the battery cell 6 squeezes the utility model, and the buffer member 3 is deformed toward the heat insulation layer 1, thereby playing a buffering role, wherein the buffer through hole 31 provides space for the deformation of the buffer member 3, thereby improving the buffering performance of the buffer member 3, and the buffer cavity 32 further provides deformation space for the buffer member 3, thereby further improving the buffering performance of the buffer member 3; on the other hand, a heat dissipation channel 4 is provided between adjacent buffer members 3, so that when the utility model is in use, a gap is left between the battery cell 6 and the utility model, which is convenient for air circulation and easy to dissipate heat.

[0039] Specifically, the heat insulation layer 1 includes a heat insulation sheet 11 and two protective films 12;

[0040] The two protective films 12 are respectively arranged on both sides of the thermal insulation sheet 11. The protective films 12 include a fitting portion 121 fitted with the thermal insulation sheet 11. The edge of the fitting portion 121 extends outward to form an extension portion 122. The extension portions 122 of the two protective films 12 are fixedly connected.

[0041] Specifically, the thermal insulation sheet 11 is aerogel felt.

[0042] Specifically, the protective film 12 is a PET film.

[0043] Specifically, the installation frame 2 includes a frame body 21 and a support member 22; a mounting groove 23 is provided on one side of the frame body 21 close to the thermal insulation layer 1; the support member 22 is fixedly connected in the installation frame 2; wherein the extension portions 122 of the two protective films 12 are fixedly connected between the two frame bodies 21, and the fitting portions 121 of the two protective films 12 and the thermal insulation sheet 11 are fixedly connected between the two mounting grooves 23. wherein the fitting portion 121 of the protective film 12 is fixedly connected to the inner wall of the mounting groove 23 and the support member 22 on the side away from the thermal insulation sheet 11.

[0044] Specifically, the support member 22 is a grid structure.

[0045] Specifically, the material of the buffer member 3 is silicone.

[0046] Specifically, a distance is left between the end surfaces of the two installation frames 2 and the end surface of the buffer layer to form an inserting portion 24 .

[0047] Specifically, the installation frame 2 is made of mica board.

[0048] The battery box 5 for installing the utility model is provided with a plurality of heat dissipation through holes 51, and the inner walls on both sides of the battery box 5 are provided with slots 52 that match the plug-in portion 24, and the slots 52 are arranged between two adjacent battery cells 6. Since the mica board has good mechanical properties, it plays a supporting role in the utility model, so that the utility model can be movably inserted into the slot 52 through the cooperation of the slot 52 and the plug-in portion 24, which facilitates the installation and removal of the utility model.

[0049] Working principle: When the car brakes suddenly or is hit, the battery cell 6 squeezes the utility model, and the buffer 3 is deformed toward the insulation layer 1, thereby playing a buffering role. The buffer through hole 31 and the buffer cavity 32 provide space for the deformation of the buffer 3, further improving the buffering performance of the buffer 3; on the other hand, a heat dissipation channel 4 is provided between adjacent buffers 3 to facilitate air circulation and easy heat dissipation.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A new type of metal battery core heat insulation plug, characterized in that: include: Insulation layer; Two installation frames, the two installation frames are respectively fixedly connected to two sides of the thermal insulation layer; Two buffer layers, the two buffer layers are respectively fixedly connected to the sides of the two mounting frames away from each other, and the buffer layers include a plurality of buffer parts; a gap is left between two adjacent buffer parts to form a heat dissipation channel; the buffer parts are provided with a plurality of buffer through holes, and the inner walls of the buffer through holes are provided with buffer cavities extending to both sides of the buffer through holes.

2. The novel metal battery core heat-insulating insert according to claim 1 is characterized in that: The thermal insulation layer comprises: Thermal insulation sheet; Two protective films are respectively arranged on both sides of the thermal insulation plate. The protective films include a fitting portion fitted with the thermal insulation plate. The edge of the fitting portion extends outward to form an extension portion. The extension portions of the two protective films are fixedly connected.

3. The novel metal battery core heat-insulating insert according to claim 2 is characterized in that: The heat insulation sheet is aerogel felt.

4. The novel metal battery core heat-insulating insert according to claim 2 is characterized in that: The protective film is a PET film.

5. The novel metal battery core heat-insulating insert according to claim 2 is characterized in that: The installation frame includes: A frame, wherein a mounting groove is provided on one side of the frame close to the heat insulation layer; A support member, wherein the support member is fixedly connected in the installation frame; The extending parts of the two protective films are fixedly connected between the two frames, and the fitting parts of the two protective films and the heat insulation sheet are fixedly connected between the two installation grooves.

6. The novel metal battery core heat-insulating insert according to claim 5 is characterized in that: The support member is a grid structure.

7. The novel metal battery core heat-insulating insert according to claim 1 is characterized in that: The material of the buffer component is silicone.

8. The novel metal battery core heat-insulating insert according to claim 1 is characterized in that: A distance is left between the end faces of the two installation frames and the end face of the buffer layer to form an inserting portion.

Images