CN206673015U - The attachment structure and battery cap of pole and conducting strip - Google Patents

Abstract

It the utility model is related to the technical field of battery, disclose the attachment structure and battery cap of pole and conducting strip, the attachment structure of pole and conducting strip includes copper-base post and conducting strip made of coping plate, copper product, conducting strip is placed in the upper surface of coping plate, and copper-base post includes base plate and forms the cylinder on surface on the base mounting plate；The upper end of conducting strip is provided with the first groove, and copper ring body is embedded with the first groove；Cylinder passes through coping plate, conducting strip and copper ring body, and is connected with copper ring body.Compared with prior art, the attachment structure of pole and conducting strip provided by the utility model, pass through the embedded copper ring body in the first groove of the upper surface of conducting strip, the cylinder of copper-base post sequentially passes through coping plate, conducting strip and copper ring body, it is attached using cylinder and copper ring body, because copper-base post and copper ring body are all made of copper products, it is easy to the connection of cylinder and copper ring body, attended operation is also relatively simple.

Description

The connection structure between the pole and the conductive sheet and the battery top cover

technical field

The utility model relates to the technical field of batteries, in particular to a connection structure between poles and conductive sheets and a battery top cover including the connection structure.

Background technique

At present, with the increasing miniaturization, portability and portability of electronic products, such as cameras, notebooks and mobile phones, the driving power of these electronic products is also developing in the direction of high capacity, high safety and portability. Its excellent characteristics such as high capacity are widely used in electronic products.

The lithium battery includes a casing, a battery top cover, and a battery cell, etc., wherein the battery cell is placed inside the casing, the upper end of the casing has an upper end opening, and the battery top cover seals the opening at the upper end of the casing, and then passes through the opening formed on the battery. The conductive sheet on the top cover can electrically connect the lithium battery with external electronic components to realize power supply.

In the prior art, the battery top cover includes a plurality of components such as a top cover sheet and a pole. The conductive sheet is arranged on the top cover sheet. Perform connection operation. The conductive sheet is made of aluminum. In order to enhance the conductivity of the pole, one of the poles is made of copper material, which is a copper pole. In this way, when it is necessary to connect the copper pole with the conductive sheet, there is a troublesome connection. defect.

Utility model content

The purpose of the utility model is to provide a connection structure between a pole and a conductive sheet, aiming at solving the problem of troublesome connection between a copper pole and a conductive sheet in the prior art.

The utility model is achieved in this way, the connection structure of the pole and the conductive sheet includes a top cover sheet, a copper pole made of copper material and a conductive sheet, and the conductive sheet is placed on the upper surface of the top cover sheet. The copper pole includes a base plate and a column formed on the upper surface of the base plate; the upper end of the conductive sheet is provided with a first groove, and a copper ring is embedded in the first groove; the The column passes through the top cover sheet, the conductive sheet and the copper ring body, and is connected with the copper ring body.

Further, along the direction from top to bottom of the first groove, the side walls of the first groove are inclined outwards, forming a shape with a small top and a large bottom, and the outer side wall of the copper ring body is inclined, and abut against the sidewall of the first groove.

Further, the lower end of the conductive sheet is provided with a first through hole, the first through hole is located directly below the first groove, the diameter of the through hole is smaller than the diameter of the first groove, so The column passes through the first through hole and the first groove.

Further, the copper ring surrounds and forms a second through hole and a second groove, the second groove is located directly above the second through hole, and the diameter of the second groove is larger than that of the first The diameter of the two through holes, the column is passed through the second through hole and the second groove.

Further, the upper end of the column has a connecting section placed in the second groove, the outer circumference of the connecting section protrudes outward to form an outer protruding ring, and the outer circumference of the outer protruding ring is connected to the second groove. The side walls of the groove abut.

Further, the cylinder is welded to the copper ring.

Further, the upper end surface of the cylinder is arranged flush with the upper end surface of the copper ring.

Further, the upper end surface of the copper ring body is arranged flush with the upper end surface of the conductive sheet.

Further, the conductive sheet is an aluminum-copper composite.

The utility model also provides a battery top cover, including the above-mentioned connection structure between the pole and the conductive sheet.

Compared with the prior art, in the connection structure between the pole and the conductive sheet provided by the utility model, the copper ring is embedded in the first groove on the upper surface of the conductive sheet, and the copper poles pass through the top in sequence. The cover sheet, the conductive sheet and the copper ring body are connected by the cylinder and the copper ring body. Since the copper pole and the copper ring body are made of copper material, it is convenient for the connection between the cylinder body and the copper ring body, and the connection operation is relatively simple. .

Description of drawings

Fig. 1 is the three-dimensional exploded schematic diagram of the cooperation of the conductive sheet and the copper ring body provided by the embodiment of the present invention;

Fig. 2 is a cutaway schematic diagram of the battery top cover provided by the embodiment of the present invention;

Fig. 3 is an enlarged schematic diagram of A place in Fig. 2;

Fig. 4 is a three-dimensional exploded schematic diagram of the cooperation between the conductive sheet and the copper ring body provided by another embodiment of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The realization of the utility model is described in detail below in conjunction with specific embodiments.

Shown with reference to Fig. 1 to Fig. 4, it is the preferred embodiment that the utility model provides.

The connection structure between the pole and the conductive sheet provided in this embodiment is used in the battery top cover of the battery, and the battery may be a lithium battery or other various types of batteries.

In this embodiment, the connection structure between the pole and the conductive sheet includes a top cover sheet 100, a copper pole made of copper material, and a conductive sheet 102, wherein the conductive sheet 102 is arranged on the upper surface of the top cover sheet 100, and the copper electrode The column includes a base plate 106 and a column body 107. The column body 107 is formed on the base plate 106. When the copper pole column is installed, the column body 107 passes through the top cover sheet 100 and the conductive sheet 102, and the base plate 106 forms a Under the cover sheet 100 , abutting against the lower surface of the cover sheet 100 , the post 107 passes through the cover sheet 100 and the conductive sheet 102 longitudinally.

A first groove 103 is provided in the upper end of the conductive sheet 102, and a copper ring body 101 made of copper material is embedded in the first groove 103, and the above-mentioned copper pole column body 107 passes through the copper ring body 101, and connected to the copper ring body 101.

In the connection structure between the pole and the conductive sheet provided above, the first groove 103 is provided in the upper end of the conductive sheet 102, and the copper ring 101 is embedded in the first groove 103, and the columns 107 of the copper pole pass through in sequence. The top cover sheet 100, the conductive sheet 102 and the copper ring body 101 are connected with the copper ring body 101 by the cylinder 107. Since the copper pole and the copper ring body 101 are all made of copper material, it is convenient for the cylinder body 107 to connect with the copper ring body. 101 connection, the connection operation is relatively simple.

The copper ring body 101 and the column body 107 are first riveted and then welded, so that the connection between the copper ring body 101 and the column body 107 is more stable.

Along the top-to-bottom direction of the first groove 103, the side walls of the first groove 103 are inclined outwards, forming a shape with a small top and a large bottom. sidewall abutment. In this way, after the copper ring body 101 is embedded in the first groove 103 , the copper ring body 101 will not come out of the first groove 103 due to the shape of the first groove 103 having a large bottom and a small top.

The lower end of the conductive sheet 102 is provided with a first through hole, the first through hole is located directly below the first groove 103, the diameter of the through hole is smaller than the diameter of the first groove 103, and the column 107 passes through the first through hole and the second through hole. A groove 103. That is to say, in the conductive sheet 102 , the shape of the stepped hole between the first through hole and the first groove 103 cooperates to penetrate the conductive sheet 102 .

The copper ring 101 surrounds and forms a second through hole 105 and a second groove 104, the second groove 104 is located directly above the second through hole 105, and the diameter of the second groove 104 is larger than the diameter of the second through hole 105, The post 107 is disposed in the second through hole 105 and the second groove 104 . In this way, in the copper ring body 101 , the cooperation between the second groove 104 and the second through hole 105 also forms a stepped hole structure.

After the cylinder 107 is installed in the conductive sheet 102 and the copper ring body 101, the upper end of the cylinder 107 has a connection section placed in the second groove 104, and the outer circumference of the connection section protrudes outward to form an outer protruding ring. The outer periphery of the protruding ring abuts against the side wall of the second groove 104, so that the stepped hole structure formed by the cooperation of the second groove 104 and the second through hole 105 forms a limit to the cylinder 107, so that the cylinder 107 and the second through hole 105 form a limit. The connection between the conductive sheet 102 and the copper ring body 101 is more stable.

In this embodiment, the upper end surface of the copper ring body 101 is flush with the upper end surface of the conductive sheet 102 . In addition, the upper end surface of the cylinder 107 is flush with the upper end surface of the copper ring body 101, so that in the battery top cover after assembly, the upper end surface of the copper ring body 101, the upper end surface of the conductive sheet 102 and the upper end surface of the cylinder body 107 The upper end face is set flush.

A recessed position 106 is provided on the upper end surface of the cylinder 107, so as to facilitate the conductive connection between the copper pole and the outside.

In this embodiment, the upper end of the cylinder 107 is riveted to the copper ring 101 , and after the riveting, the outer circumference of the upper end of the cylinder 107 is welded to the copper ring 101 . The conductive sheet 102 is an aluminum-copper composite.

This embodiment also provides a battery top cover, including the above-mentioned connection structure between the pole and the conductive sheet. For the battery top cover, the copper pole and the conductive sheet 102 are connected through the copper ring 101 provided. , to connect the operational aspects.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. The connection structure between the pole post and the conductive sheet is characterized in that it includes a top cover sheet, a copper pole made of copper material and a conductive sheet, the conductive sheet is placed on the upper surface of the top cover sheet, and the copper The pole includes a base plate and a column formed on the upper surface of the base plate; the upper end of the conductive sheet is provided with a first groove, and a copper ring is embedded in the first groove; the column It passes through the top cover sheet, the conductive sheet and the copper ring body, and is connected with the copper ring body. 2. The connection structure between the pole and the conductive sheet according to claim 1, characterized in that, along the top-down direction of the first groove, the side walls of the first groove are inclined outward, forming The top is small and the bottom is large, and the outer wall of the copper ring body is inclined and abuts against the side wall of the first groove. 3. The connection structure between the pole and the conductive sheet according to claim 2, wherein the lower end of the conductive sheet is provided with a first through hole, and the first through hole is located at the front of the first groove. Below, the diameter of the through hole is smaller than the diameter of the first groove, and the column passes through the first through hole and the first groove. 4. The connection structure between the pole and the conductive sheet according to any one of claims 1 to 3, wherein the copper ring surrounds and forms a second through hole and a second groove, and the second groove It is located directly above the second through hole, and the diameter of the second groove is larger than that of the second through hole, and the column is passed through the second through hole and the second groove. 5. The connection structure between pole and conductive sheet according to claim 4, characterized in that, the upper end of the column has a connection section placed in the second groove, and the outer circumference of the connection section faces outward protruding to form an external protruding ring, and the outer periphery of the external protruding ring abuts against the side wall of the second groove. 6 . The connection structure between the pole post and the conductive sheet according to any one of claims 1 to 3 , wherein the post body is welded to the copper ring body. 7 . 7. The connection structure between the pole post and the conductive sheet according to any one of claims 1 to 3, characterized in that, the upper end surface of the column is arranged flush with the upper end surface of the copper ring. 8 . The connection structure between the pole and the conductive sheet according to claim 7 , wherein the upper end surface of the copper ring body is arranged flush with the upper end surface of the conductive sheet. 9. The connection structure between the pole and the conductive sheet according to any one of claims 1 to 3, wherein the conductive sheet is an aluminum-copper composite. 10. The battery top cover, characterized in that it comprises the connection structure between the pole post and the conductive sheet according to any one of claims 1-9.