CN221176432U

CN221176432U - Current output structure and battery

Info

Publication number: CN221176432U
Application number: CN202322944291.7U
Authority: CN
Inventors: 钱福梅; 高春蕾; 李群; 苏腾; 李波
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-06-18
Anticipated expiration: 2033-10-31

Abstract

The application relates to a current output structure and a battery in the technical field of battery conductive connection, wherein the current output structure comprises: an insulating plate formed with a first through hole; a sealing member provided at one side of the insulating plate, and having a second through hole formed therein; a conductive member formed with a first end and a second end; the conductive piece passes through the first through hole and the second through hole, and the conductive piece is contacted with the side wall of the second through hole. The current output structure can improve the insulativity and the tightness between the conductive piece and the shell and improve the use safety of the battery.

Description

Current output structure and battery

Technical Field

The application relates to the technical field of battery conductive connection, in particular to a current output structure and a battery.

Background

The battery comprises a shell and an electric energy output module therein, wherein a conducting rod is arranged on the shell and is used for connecting the electric energy output module with an external current connector so as to safely output current, and the conducting rod is connected with an electric system through the current connector; however, the current output of the current battery has the problems of poor tightness and poor insulativity between the conducting rod and the shell, and potential safety hazards exist.

Disclosure of utility model

In view of the problems existing in the background art, the application provides a current output structure and a battery, wherein the current output structure can improve the insulativity and the sealing property between a conductive rod and a shell, and improve the use safety of the battery.

According to an aspect of the present utility model, there is provided a current output structure including: an insulating plate formed with a first through hole; a sealing member provided at one side of the insulating plate, and having a second through hole formed therein; a conductive member formed with a first end and a second end; the conductive piece passes through the first through hole and the second through hole, and the conductive piece is contacted with the side wall of the second through hole.

In some embodiments of the utility model, the seal is a resilient seal and the conductive member is an interference fit with the second through hole.

In some embodiments of the present utility model, the current output structure further includes: the pressing plate is arranged on one side, far away from the insulating plate, of the sealing piece and is provided with a third through hole for the conductive piece to pass through; the sealing element is made of insulating materials, and the size of the third through hole is larger than that of the conductive element.

In some embodiments of the utility model, a receiving cavity matched with the sealing element is formed on one side, close to the sealing element, of the pressing plate, and the sealing element is in interference fit with the receiving cavity.

In some embodiments of the present utility model, an extension cylinder is integrally formed on a side of the sealing member away from the insulating plate, the extension cylinder penetrates out of the third through hole, and the extension cylinder is sleeved on the conductive member and is in interference fit with the conductive member.

In some embodiments of the present utility model, a plurality of elastic blocks are fixed on the outer ring side wall of the sealing element at intervals, and the elastic blocks are in interference contact with the side wall of the accommodating cavity.

In some embodiments of the utility model, the first via is sized larger than the conductive member.

In some embodiments of the utility model, the seal is a high temperature resistant material.

According to another aspect of the present utility model, there is provided a battery including the above-described current output structure and a case, the insulating plate being connected to the case on a side remote from the sealing member.

In some embodiments of the utility model, the housing has a mounting hole formed therein through which the conductive member passes, the mounting hole having a size larger than that of the conductive member.

The embodiment of the application provides a current output structure, which is characterized in that a first end of a conductive piece passes through a mounting hole to be connected with an electric energy output module in a shell, the conductive piece is prevented from contacting with the side wall of the mounting hole, an insulating plate is abutted against the shell and fixed, a sealing piece is abutted against one side of the insulating plate far away from the shell, and a second end of the conductive piece is connected with a current connector, so that the contact between the conductive piece and the shell is avoided through the insulating plate, and the conductive piece and the insulating plate are sealed through the sealing piece, thereby improving the insulativity and the tightness between the conductive piece and the shell and improving the use safety of a battery.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of a current output structure according to an embodiment of the present application;

Fig. 2 is a schematic diagram showing the structure of the elastic block.

The reference numerals in the drawings are as follows: 1. an insulating plate; 11. a first through hole; 2. a seal; 21. a second through hole; 3. a conductive member; 31. a first end; 32. a second end; 4. a pressing plate; 41. a third through hole; 42. a receiving chamber; 5. a bolt; 6. extending the cylinder; 7. an elastic block; 8. a housing; 81. and (5) mounting holes.

Detailed Description

It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application as detailed in the accompanying claims.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The embodiment of the application discloses a current output structure, which is used for outputting current of a battery, the type of the battery comprises a fuel battery, a lithium ion battery, a lead-acid storage battery and the like, as shown in fig. 1, the battery comprises a shell 8 and an electric energy output module, a mounting hole 81 for communicating the inside and the outside is formed on the shell 8, and the current output structure is arranged on the shell 8 and is used for connecting the electric energy output module and a current connector.

As shown in fig. 1 and 2, the current output structure includes an insulating plate 1, a sealing member 2, and a conductive member 3; wherein, the insulating plate 1 is provided with a first through hole 11; the sealing element 2 is arranged on one side of the insulating plate 1, and a second through hole 21 is formed in the sealing element 2; the conductive member 3 is formed with a first end 31 and a second end 32, the conductive member 3 passes through the first through hole 11 and the second through hole 21, and the conductive member 3 contacts with a sidewall of the second through hole 21.

Through the current output structure in this technical scheme, first end 31 with electrically conductive piece 3 passes mounting hole 81 and is connected with the electric energy output module in the shell 8 at first, and avoid electrically conductive piece 3 and mounting hole 81 lateral wall contact, the size of mounting hole 81 is greater than electrically conductive piece 3's size, then paste insulating board 1 on shell 8 and fixed, paste insulating board 1 and keep away from the one side of shell 8 with sealing member 2, be connected electrically conductive piece 3's second end 32 with the electric current connector, thereby avoid electrically conductive piece 3 and shell 8's contact through insulating board 1, seal electrically conductive piece 3 and insulating board 1 through sealing member 2, thereby insulating and leakproofness between electrically conductive piece 3 and the shell 8 have been promoted, the safety in utilization of battery has been improved.

Specifically, the shape of the conductive member 3 in the present embodiment may include, but is not limited to, a round rod shape, a long sheet shape, and the like, and the structures of the first through hole 11, the second through hole 21, and the like through which the conductive member 3 passes may be adapted, and the shape of the sealing member 2 may include, but is not limited to, a circular plate, a square plate, and the like.

Further, the insulating plate 1 can be made of mica, and plays a role in insulating protection and sealing between the contact surface of the insulating plate 1 and the shell 8.

In some embodiments of the utility model, the seal 2 is an elastomeric seal 2, and the conductive member 3 is an interference fit with the second through hole 21. The sealing effect is ensured by utilizing the compressibility of the seal 2.

Specifically, the sealing member 2 in the present embodiment may be made of an insulating elastic material, and the insulation of the other parts contacting the conductive member 3 is ensured while the insulation of the housing 8 is ensured.

Further, the sealing member 2 may use a high temperature resistant material to be suitable for a high temperature environment such as silicone rubber.

In some embodiments of the present utility model, as shown in fig. 1, the current output structure further includes a pressing plate 4, where the pressing plate 4 is disposed on a side of the sealing member 2 away from the insulating plate 1, a third through hole 41 through which the conductive member 3 passes is formed on the pressing plate 4, the sealing member 2 is made of an insulating material, the pressing plate 4 is made of an insulating material or a non-insulating material, the size of the third through hole 41 is larger than that of the conductive member 3, such that a gap is formed between the conductive member 3 and a sidewall of the third through hole 41, and the pressing plate 4 presses the sealing member 2 and the insulating plate 1, and fixes the conductive and insulating sealing portions to the housing 8.

Specifically, the sealing member 2 in this embodiment is made of an insulating material, and the pressing plate 4 may be made of a metal or nonmetal material with high strength, so as to ensure the stability of the pressing plate 4 to the fixing of the conductive and insulating sealing portions.

Further, the pressing plate 4 and the casing 8 may be connected by using bolts 5, or may be connected by using other modes such as bonding, welding, etc.

In some embodiments of the present utility model, as shown in fig. 1, a receiving cavity 42 adapted to the sealing member 2 is formed at a side of the pressing plate 4 adjacent to the sealing member 2, and the sealing member 2 is interference-fitted with the receiving cavity 42. The outer ring of the sealing element 2 is arranged in the accommodating cavity 42, so that the pressing plate 4 can be directly contacted with the insulating plate 1, the bolts 5 can conveniently penetrate through the pressing plate 4 and the insulating plate 1 to be connected to the shell 8, the pressing of the pressing plate 4 to the sealing element 2 is reduced, the conductive element 3 can conveniently and freely move in the axial direction, and the expansion or contraction caused by the change of the environmental temperature is adapted.

In some embodiments of the present utility model, as shown in fig. 1 and 2, an extension cylinder 6 is integrally formed on a side of the sealing member 2 away from the insulating plate 1, the extension cylinder 6 penetrates out of the third through hole 41, and the extension cylinder 6 is sleeved on the conductive member 3 and is in interference fit with the conductive member 3. Through extending barrel 6, form great parcel length to electrically conductive piece 3, both promoted electrically conductive piece 3 and shell 8's connection stability, further improved the leakproofness of shell 8 in mounting hole 81 department again.

In some embodiments of the present utility model, as shown in fig. 1 and 2, a plurality of elastic blocks 7 are fixed to the outer ring side wall of the sealing member 2 at intervals, and the elastic blocks 7 are in interference contact with the side wall of the accommodating cavity 42. Further, the size of the first through hole 11 is larger than the size of the conductive member 3. When the position deviation of the conductive piece 3 is larger, the adjustment of the radial position of the conductive piece 3 can be realized through the elastic block 7, and meanwhile, the sealing of each contact surface is ensured, so that the sealing effect can be ensured when the relative position tolerance of parts is larger.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A current output structure, comprising:

an insulating plate (1) in which a first through hole (11) is formed;

a sealing member (2) provided on one side of the insulating plate (1) and having a second through hole (21) formed therein;

A conductive member (3) formed with a first end (31) and a second end (32); the conductive piece (3) passes through the first through hole (11) and the second through hole (21), and the conductive piece (3) is contacted with the side wall of the second through hole (21).

2. The current output structure according to claim 1, characterized in that the seal (2) is an elastic seal (2), the conductive member (3) being in interference fit with the second through hole (21).

3. The current output structure according to claim 1 or 2, characterized by further comprising:

a pressing plate (4) which is arranged on one side of the sealing element (2) far away from the insulating plate (1) and is provided with a third through hole (41) for the conductive element (3) to pass through; the sealing element (2) is made of an insulating material, and the size of the third through hole (41) is larger than that of the conductive element (3).

4. A current output structure according to claim 3, characterized in that a receiving cavity (42) adapted to the sealing member (2) is formed on a side of the pressing plate (4) close to the sealing member (2), and the sealing member (2) is in interference fit with the receiving cavity (42).

5. The current output structure according to claim 4, wherein an extension cylinder (6) is integrally formed on one side of the sealing member (2) away from the insulating plate (1), the extension cylinder (6) penetrates out of the third through hole (41), and the extension cylinder (6) is sleeved on the conductive member (3) and is in interference fit with the conductive member (3).

6. The current output structure according to claim 4, wherein a plurality of elastic blocks (7) are fixed on the outer ring side wall of the sealing member (2) at intervals, and the elastic blocks (7) are in interference contact with the side wall of the accommodating cavity (42).

7. A current output structure according to claim 6, characterized in that the size of the first through hole (11) is larger than the size of the conductive member (3).

8. The current output structure according to claim 1 or 2, characterized in that the sealing member (2) is a high temperature resistant material.

9. A battery comprising a housing (8) and a current output structure according to any one of claims 1 to 8, the insulating plate (1) being connected to the housing (8) on a side remote from the seal (2).

10. The battery according to claim 9, wherein the housing (8) is formed with a mounting hole (81) through which the conductive member (3) passes, and the size of the mounting hole (81) is larger than the size of the conductive member (3).