Insulation cover plate structure of automobile battery

Abstract

The utility model discloses an automobile battery insulation cover plate structure, which comprises a cover plate body, an anode, a cathode and a voltage stabilizing mechanism, the anode and the cathode have the same structure and are both installed on the cover plate body, the anode comprises an anode strip, a connecting block, a welding block and a connecting column, the anode is fixed on the cover plate body through the connecting block, and the voltage stabilizing mechanism is fixed on the anode strip. The connecting column is inserted into a mounting hole of the cover plate body, a sealing groove for mounting a sealing ring is formed in the side wall of the connecting column, the welding block is fixedly connected with the inner end of the connecting column, the anode strip is fixedly connected with the outer end of the connecting column, and the welding block is connected with a battery pin; a side sealing strip hermetically connected with a battery shell is mounted on the inner side of the bottom of the cover plate body; the pressure stabilizing mechanism is arranged in the middle of the cover plate body; the pressure stabilizing mechanism is arranged on the battery box cover, so that the internal and external insulation sealing of the battery is effectively ensured, the internal and external pressure difference of the battery is effectively reduced, and the condition that the service life of the battery is influenced by expansion and the like caused by overlarge internal pressure of the battery is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile battery structures, in particular to an automobile battery insulation cover plate structure. Background Art

[0002] With the energy crisis and global warming around the world, the transportation sector urgently needs a new energy model. Lithium-ion batteries have attracted widespread attention in the transportation sector due to their green and environmentally friendly, high energy output and other characteristics. At present, relevant industries around the world have conducted extensive research on the application of lithium-ion batteries in this field. With the maturity and improvement of electric vehicle technology, the dream of electric vehicles and hybrid vehicles entering daily life has become possible, and huge business opportunities are bred in the process of popularizing electric vehicles. The performance of large-capacity on-board power batteries directly affects the overall performance of electric vehicles. This puts forward higher requirements for on-board power batteries for electric vehicles, such as higher safety, better performance, and lighter weight.

[0003] The reliability and safety of the battery are also a technical difficulty and focus in the production process of large-capacity power batteries, especially the high sealing of the battery during the production process. At the same time, in order to ensure the safety of the battery, when the internal pressure of a large-capacity battery is high, a pressure relief structure needs to be designed to balance the internal and external pressures of the battery. The utility model provides a new type of battery insulation cover structure. Utility Model Content

[0004] The utility model aims to provide an automobile battery insulation cover plate structure.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An automobile battery insulation cover structure, comprising a cover body, an anode, a cathode and a voltage stabilizing mechanism, wherein the anode and the cathode have the same structure and are both mounted on the cover body, the anode comprises an anode sheet, a connecting block, a welding block and a connecting column, the anode is fixed to the cover body through the connecting block, the connecting column is inserted into the mounting hole of the cover body, the side wall of the connecting column is provided with a sealing groove for mounting a sealing ring, the welding block is fixedly connected to the inner end of the connecting column, the anode sheet is fixedly connected to the outer end of the connecting column, and the welding block is connected to the battery pin; a side sealing strip for sealing connection with the battery shell is installed on the inner side of the bottom of the cover body; the voltage stabilizing mechanism is arranged in the middle position of the cover body, and the voltage stabilizing mechanism comprises a convex block, an inverted hole , an upper connecting through hole, a deformable sealing block, a bone plate, a lower connecting through hole and a spring, the protrusion is arranged in the middle groove of the cover body, the upper end of the protrusion is flush with the upper end of the cover body, the inverted hole is obliquely arranged on the side of the protrusion, and the inverted hole is connected with the upper connecting hole arranged in the middle of the protrusion, the lower connecting hole is arranged below the upper connecting hole, two deformable sealing blocks are symmetrically arranged between the upper connecting hole and the lower connecting hole, the deformable sealing block is made of flexible sealing material, the interior of the contact sealing position of the two deformable sealing blocks is coated with a bone plate made of metal material, two springs are installed in the installation cavity outside the deformable sealing block, one end of the spring abuts against the deformable sealing block where the bone plate is installed, and the two springs push the two deformable sealing blocks to contact and seal.

[0007] Furthermore, a U-shaped metal sealing frame is provided inside the side sealing strip, and a sealing layer made of rubber material is coated on the outside of the sealing frame.

[0008] Furthermore, the connecting column is provided with a plurality of sealing grooves, and a sealing ring is installed in each sealing groove.

[0009] Furthermore, the connecting block is integrally formed with the anode sheet and is made of insulating material. The connecting block is provided with a through hole for a fixing bolt to pass through. The fixing bolt passes through the through hole and is threadedly engaged with a threaded hole on the cover body to fix the connecting anode on the cover body.

[0010] Furthermore, the position of the opening of the inverted hole is lower than the position of the upper connecting hole.

[0011] Furthermore, there are multiple inverted holes, and the multiple inverted holes are evenly distributed on the circumference of the protrusion.

[0012] In summary, the utility model has the following beneficial effects: the utility model provides a voltage stabilizing mechanism on the battery box cover, which effectively ensures the insulation and sealing inside and outside of the battery, while effectively reducing the pressure difference inside and outside the battery, thereby avoiding the battery from expanding due to excessive internal pressure, which affects the practical life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 It is a schematic diagram of the installation structure of the battery pole piece;

[0015] Figure 3 It is a structural diagram of the voltage stabilizing mechanism;

[0016] Figure 4 It is a schematic diagram of the structure of the side sealing strip.

[0017] In the figure, 1, cover body; 2, anode; 3, cathode; 4, voltage stabilizing mechanism; 5, side sealing strip; 6, anode plate; 7, connecting block; 8, welding block; 9, connecting column; 10, sealing ring; 11, fixing bolt; 12, protrusion; 13, inverted hole; 14, upper connecting hole; 15, deformable sealing block; 16, bone plate; 17, lower connecting hole; 18, spring; 19, sealing frame. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0019] like Figure 1-4 As shown, an automobile battery insulation cover structure includes a cover body 1, an anode 2, a cathode 3 and a voltage stabilizing mechanism 4. The anode 2 and the cathode 3 have the same structure, especially the same mounting structure. Figure 1 and Figure 2As shown, and are all installed on the cover body 1, the anode 2 includes an anode sheet 6, a connecting block 7, a welding block 8 and a connecting column 9, the anode 2 is fixed to the cover body 1 through the connecting block 7, the connecting column 9 is inserted in the mounting hole of the cover body 1, and the side wall of the connecting column 9 is provided with a sealing groove for installing a sealing ring 10, the welding block 8 is fixedly connected to the inner end of the connecting column 9, the anode sheet 6 is fixedly connected to the outer end of the connecting column 9, the welding block 8 is connected to the battery pin, and the same installation structure of the cathode 3 is the same as that of the anode 2, which is not repeated here; a side sealing strip 5 sealed and connected to the battery shell is installed on the inner side of the bottom of the cover body 1 (such as sealing with the outer wall of the battery shell, etc.), and the side sealing strip 5 is sealed with the battery shell. The specific structure of the battery shell can be designed to adapt to the cover body 1 of the utility model, and the utility model does not disclose its specific structure; the voltage stabilizing mechanism 4 is arranged in the middle position of the cover body 1, and the voltage stabilizing mechanism 4 includes a convex block 12, an inverted hole 13, an upper The connecting through hole 14, the deformable sealing block 15, the bone plate 16, the lower connecting through hole 17 and the spring 18, the protrusion 12 is arranged in the middle groove of the cover body 1, the upper end of the protrusion 12 is flush with the upper end of the cover body 1, the inverted hole 13 is obliquely arranged on the side of the protrusion 12, and the inverted hole 13 is connected with the upper connecting hole 14 arranged in the middle of the protrusion 12, and the lower connecting hole 17 is arranged below the upper connecting hole 14, and two deformable sealing blocks 15 are symmetrically arranged between the upper connecting hole 14 and the lower connecting hole 17, the deformable sealing block 15 is made of flexible sealing material, such as nitrile rubber, etc., the interior of the contact sealing position of the two deformable sealing blocks 15 is coated with a bone plate 16 made of metal material, and the bone plate 16 requires a metal that is not easily deformed, such as iron, stainless steel, etc., two springs 18 are installed in the installation cavity outside the deformable sealing block 15, one end of the spring 18 abuts against the deformable sealing block 15 where the bone plate 16 is installed, and the two springs 18 push the two deformable sealing blocks 15 to contact and seal.

[0020] Furthermore, a U-shaped metal sealing frame 19 is provided inside the side sealing strip 5, and a sealing layer made of rubber material is coated on the outside of the sealing frame 19. The rubber material can be an airtight and sealing rubber material such as nitrile rubber.

[0021] Furthermore, the connecting column 9 is provided with a plurality of sealing grooves, each of which is provided with a sealing ring 10. Figure 2 Three sealing grooves and a sealing ring 10 are provided.

[0022] Specifically, the connecting block 7 is integrally formed with the anode sheet 6. The connecting block 7 is made of insulating material. A through hole is provided on the connecting block 7 for the fixing bolt 11 to pass through. The fixing bolt 11 passes through the through hole and is threadedly engaged with the threaded hole on the cover body 1 to fix the connecting anode 2 on the cover body 1.

[0023] Furthermore, the opening of the inverted hole 13 is located lower than the upper connecting hole 14, forming a structure that can effectively reduce dust and water stains from entering the battery.

[0024] Furthermore, there are multiple inverted holes 13 , and the multiple inverted holes 13 are evenly distributed on the circumference of the protrusion 12 .

[0025] Working principle: When the internal temperature of the battery is too high during operation, causing the internal pressure to be greater than a certain level, the two deformed sealing blocks 15 will be pushed open to release part of the internal pressure, thereby preventing excessive pressure from affecting the battery life. At the same time, the voltage stabilizing mechanism of the utility model effectively ensures the insulation and sealing inside and outside the battery, thus playing a protective role.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An automobile battery insulation cover structure, comprising a cover body (1), an anode (2), a cathode (3) and a voltage stabilizing mechanism (4), wherein the anode (2) and the cathode (3) are both arranged in the same structure and are both mounted on the cover body (1), characterized in that: The anode (2) comprises an anode sheet (6), a connection block (7), a welding block (8) and a connection column (9); the anode (2) is fixed to the cover body (1) via the connection block (7); the connection column (9) is inserted into the mounting hole of the cover body (1); a sealing groove for mounting a sealing ring (10) is provided on the side wall of the connection column (9); the welding block (8) is fixedly connected to the inner end of the connection column (9); the anode sheet (6) is fixedly connected to the outer end of the connection column (9); and the welding block (8) is connected to the battery pin; a side sealing strip (5) for sealing connection with the battery shell is installed on the inner side of the bottom of the cover body (1); the voltage stabilizing mechanism (4) is arranged in the middle position of the cover body (1); the voltage stabilizing mechanism (4) comprises a protrusion (12), an inverted hole (13), an upper connecting hole (14), a deformable sealing block (15), a bone plate (16), a lower connecting hole (17) and a spring (18); the protrusion The cover body (12) is arranged in the middle groove of the cover body (1), the upper end of the protrusion (12) is flush with the upper end of the cover body (1), the inverted hole (13) is arranged obliquely on the side of the protrusion (12), and the inverted hole (13) is connected to an upper connecting hole (14) arranged in the middle of the protrusion (12), the lower connecting hole (17) is arranged below the upper connecting hole (14), and two deformable sealing blocks (15) are symmetrically arranged between the upper connecting hole (14) and the lower connecting hole (17), the deformable sealing blocks (15) are made of flexible sealing material, the inside of the two deformable sealing blocks (15) at the contact sealing position is coated with a bone plate (16) made of a metal material, and two springs (18) are installed in the installation cavity outside the deformable sealing block (15), one end of the spring (18) is in contact with the deformable sealing block (15) at the position where the bone plate (16) is installed, and the two springs (18) push the two deformable sealing blocks (15) to contact and seal.

2. The automotive battery insulation cover structure according to claim 1, characterized in that: A U-shaped metal sealing frame (19) is provided inside the side sealing strip (5), and the outside of the sealing frame (19) is coated with a sealing layer made of rubber material.

3. The automotive battery insulation cover structure according to claim 2, characterized in that: The connecting column (9) is provided with a plurality of sealing grooves, and a sealing ring (10) is installed in each sealing groove.

4. The automotive battery insulation cover structure according to claim 3, characterized in that: The connection block (7) and the anode plate (6) are integrally formed, the connection block (7) is made of insulating material, the connection block (7) is provided with a through hole for a fixing bolt (11) to pass through, the fixing bolt (11) passes through the through hole and is threadedly engaged with a threaded hole on the cover plate body (1), thereby fixing the connection anode (2) on the cover plate body (1).

5. The automobile battery insulation cover structure according to claim 4, characterized in that: The position of the opening of the inverted hole (13) is lower than the position of the upper communicating hole (14).

6. The automobile battery insulation cover structure according to claim 5, characterized in that: The number of the inverted holes (13) is multiple, and the multiple inverted holes (13) are evenly distributed on the circumference of the protrusion (12).

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