Ultrahigh-air-permeability partition plate for automobile storage battery

Abstract

The utility model discloses an automobile storage battery ultra-high air permeability partition plate which comprises a base plate, an air permeability structure used for promoting air circulation is arranged in the base plate, the air permeability structure comprises a plurality of first air holes sequentially formed in the front face of the base plate, a plurality of second air holes are sequentially formed in the back face of the base plate, and the first air holes are communicated with the second air holes. A ventilation piece used for being communicated with the external environment is arranged in the base layer plate, and a collecting structure used for collecting liquid in gas is arranged on the outer wall of the base layer plate. The first air holes and the second air holes which are formed in the front face and the back face of the base layer plate are used for dredging gas released by the battery cells on the two sides of the base layer plate, meanwhile, heat generated by the battery cells is taken away through air circulation, uniform heat dissipation is guaranteed, and potential safety hazards caused by too high temperature and air pressure when the battery cells break down are avoided.

Description

Technical Field

[0001] The utility model relates to the field of automobile battery separators, in particular to an ultra-high air permeability separator for automobile batteries. Background Art

[0002] An automotive battery is usually composed of a battery pack consisting of multiple battery cells, and a battery separator is used to isolate and protect each battery cell to prevent direct contact or short circuit between battery cells. In actual use, the battery separator is placed between the positive and negative plates of the battery cell to ensure a safe interval between the battery cells, provide insulation and conductivity, and also play a role in thermal management. However, existing separators usually conduct the heat dissipated by the battery cells through the material of the separator itself, and the whole is solid without a corresponding breathable structure. When a battery cell fails and releases a large amount of gas, the gas cannot be conducted in time, resulting in uneven heat loss and excessive air pressure, causing safety hazards. Utility Model Content

[0003] The utility model aims to provide an ultra-high air permeability separator for an automobile battery to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-high air permeability partition for an automobile battery, comprising a base plate, a breathable structure for promoting air circulation is arranged inside the base plate, the breathable structure comprises a plurality of first air holes arranged in sequence on the front side of the base plate, a plurality of second air holes arranged in sequence on the back side of the base plate, a breathable part for connecting to the external environment is arranged inside the base plate, and a collection structure for collecting liquid in the gas is arranged on the outer wall of the base plate.

[0005] Preferably, the breathable member comprises a plurality of longitudinal air holes evenly spaced apart, the longitudinal air holes vertically penetrate the interior of the base plate, and the inner walls of the longitudinal air holes respectively penetrate the back side of the first air hole and the front side of the second air hole.

[0006] Preferably, a plurality of transverse air holes are evenly spaced apart in a vertical plane inside the base plate, and the interiors of the transverse air holes and the interiors of the longitudinal air holes penetrate each other.

[0007] Preferably, the collecting structure includes inclined grooves opened on both sides of the base plate, a collecting groove for collecting water is arranged at the bottom end of the base plate, a plurality of connecting plates are evenly spaced and fixedly connected to the top of the collecting groove, the top of the connecting plate is fixedly connected to the bottom end of the base plate, connecting holes are arranged on both sides of the connecting plate, and the bottom end of the inclined groove and one side of the top end of the collecting groove penetrate each other.

[0008] Preferably, the front and back sides of the base plate are both fixedly connected with insulating heat-conducting layers.

[0009] Preferably, a buffer layer is symmetrically inserted and connected horizontally and longitudinally inside the base plate.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model arranges a corresponding ventilation structure inside the base plate, and uses the first ventilation holes and the second ventilation holes arranged on the front and back sides of the base plate to guide the gas released by the battery cells on both sides of the base plate, and uses the circulation of air to take away the heat generated by the battery cells, thereby ensuring uniform heat dissipation and avoiding safety hazards caused by excessively high temperature and air pressure when the battery cells fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 For this utility model Figure 1 A magnified view of the structure in the middle.

[0014] Figure 3 It is a side sectional view of the overall structure of the utility model.

[0015] Figure 4 It is a top sectional view of the overall structure of the utility model.

[0016] In the figure: 1. base plate; 2. first air vent; 3. transverse air vent; 4. longitudinal air vent; 5. insulating heat-conducting layer; 6. second air vent; 7. inclined groove; 8. collecting groove; 9. connecting plate; 10. connecting hole; 11. buffer layer. DETAILED DESCRIPTION

[0017] 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.

[0018] The utility model provides Figure 1-4 The shown embodiment shows an ultra-high air permeability partition for an automobile battery, comprising a base plate 1, wherein a breathable structure for promoting air circulation is arranged inside the base plate 1, the breathable structure comprises a plurality of first air holes 2 arranged in sequence on the front side of the base plate 1, a plurality of second air holes 6 arranged in sequence on the back side of the base plate 1, a breathable member for connecting to the external environment is arranged inside the base plate 1, and a collection structure for collecting liquid in the gas is arranged on the outer wall of the base plate 1.

[0019] It should be noted that the utility model arranges a corresponding air-permeable structure inside the base plate 1, and uses the first air holes 2 and the second air holes 6 arranged on the front and back of the base plate 1 to guide the gas released by the battery cells on both sides of the base plate 1, and uses the circulation of air to take away the heat generated by the battery cells, thereby ensuring uniform heat dissipation and avoiding safety hazards caused by excessive temperature and air pressure when the battery cells fail. Furthermore, the depth of the first air hole 2 and the second air hole 6 are both half of the thickness of the base plate 1. At the same time, the base plate 1 is made of polymer materials with good high temperature tolerance and strong insulation properties, including but not limited to polyimide, polyether amide or aluminum oxide, zirconium oxide, so that the base plate 1 has high heat resistance and insulation properties, and can effectively isolate the contact between battery cells.

[0020] The breathable member includes a plurality of longitudinal breathable holes 4 evenly spaced apart. The longitudinal breathable holes 4 vertically penetrate the interior of the base plate 1 . The inner walls of the longitudinal breathable holes 4 penetrate the back surfaces of the first breathable holes 2 and the front surfaces of the second breathable holes 6 , respectively.

[0021] A plurality of transverse air holes 3 are evenly spaced apart in a vertical plane inside the base plate 1 , and the interiors of the transverse air holes 3 and the interiors of the longitudinal air holes 4 penetrate each other.

[0022] Furthermore, by staggered arrangement of the longitudinal air holes 4 and the transverse air holes 3, the gas collected by the first air holes 2 and the second air holes 6 can be discharged to the outside from the longitudinal air holes 4 and the transverse air holes 3. At the same time, it should be noted that the first air holes 2 and the second air holes 6 are staggered on both sides of the base plate 1 and are not directly connected. They are connected through the longitudinal air holes 4 and the transverse air holes 3.

[0023] The collecting structure includes inclined grooves 7 opened on both sides of the base plate 1, a collecting groove 8 for collecting water is arranged at the bottom end of the base plate 1, a plurality of connecting plates 9 are evenly spaced and fixedly connected to the top of the collecting groove 8, the top of the connecting plate 9 is fixedly connected to the bottom end of the base plate 1, connecting holes 10 are arranged on both sides of the connecting plate 9, and the bottom end of the inclined groove 7 and one side of the top end of the collecting groove 8 penetrate each other.

[0024] Furthermore, the water vapor in the gas brought out of the transverse air holes 3 is brought down along the inclined groove 7 through the inclined groove 7. Furthermore, the inclined groove 7 as a whole is extended downward at an angle of 15 degrees to the vertical plane, so that the droplets slide down the inclined groove 7. At the same time, the water vapor in the transverse air holes 3 arranged inside the base plate 1 directly slides into the collecting groove 8. At the same time, the internal space of the collecting groove 8 can be connected to the external environment through the connecting hole 10 arranged on the collecting groove 8. At the same time, the collecting groove 8 and the base plate 1 are made of the same material. Furthermore, the collecting groove 8 extends downward at 15 degrees to the plane to gather the collected droplets to a designated position.

[0025] The front and back sides of the base plate 1 are both fixedly connected with an insulating heat-conducting layer 5 .

[0026] Furthermore, the insulating heat-conducting layer 5 is made of silicone. Since silicone has a high thermal conductivity, it can effectively conduct the heat generated by the battery cell reaction. At the same time, it has high temperature resistance and can maintain stable thermal conductivity at high temperatures, as well as chemical resistance, and can resist the erosion of chemical substances when the battery cell leaks. It also has insulating properties and can effectively isolate the heat and current of the battery cell.

[0027] A buffer layer 11 is symmetrically inserted and connected in the horizontal and vertical directions inside the base plate 1 .

[0028] Furthermore, the buffer layer 11 is made of elastic rubber material, which can buffer the impact force when the battery cell is impacted, thereby further protecting the battery cell.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-high air permeability separator for automobile batteries, comprising a base plate (1), characterized in that: The base plate (1) is provided with a breathable structure for promoting air circulation, the breathable structure comprising a plurality of first breathable holes (2) arranged in sequence on the front side of the base plate (1), a plurality of second breathable holes (6) arranged in sequence on the back side of the base plate (1), a breathable member for connecting to the external environment is provided inside the base plate (1), and a collection structure for collecting liquid in the gas is provided on the outer wall of the base plate (1).

2. The ultra-high air permeability separator for automobile batteries according to claim 1, characterized in that: The air permeable member comprises a plurality of longitudinal air permeable holes (4) arranged at even intervals, wherein the longitudinal air permeable holes (4) vertically penetrate the interior of the base plate (1), and the inner walls of the longitudinal air permeable holes (4) respectively penetrate the back side of the first air permeable hole (2) and the front side of the second air permeable hole (6).

3. The ultra-high air permeability separator for automobile batteries according to claim 1, characterized in that: A plurality of transverse air holes (3) are evenly spaced apart in a vertical plane inside the base plate (1), and the interiors of the transverse air holes (3) and the interiors of the longitudinal air holes (4) penetrate each other.

4. The ultra-high air permeability separator for automobile batteries according to claim 1, characterized in that: The collecting structure comprises inclined grooves (7) provided on both sides of the base plate (1); a collecting groove (8) for collecting water is provided at the bottom end of the base plate (1); a plurality of connecting plates (9) are evenly spaced and fixedly connected to the top of the collecting groove (8); the top of the connecting plate (9) is fixedly connected to the bottom of the base plate (1); connecting holes (10) are provided on both sides of the connecting plate (9); and the bottom end of the inclined groove (7) and one side of the top end of the collecting groove (8) penetrate each other.

5. The ultra-high air permeability separator for automobile batteries according to claim 1, characterized in that: The front and back sides of the base plate (1) are both fixedly connected with an insulating heat-conducting layer (5).

6. The ultra-high air permeability separator for automobile batteries according to claim 1, characterized in that: A buffer layer (11) is symmetrically inserted and connected horizontally and longitudinally inside the base plate (1).

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