WO2023208242A1

WO2023208242A1 - Terminal for arranging positive and negative electrodes of battery at same end

Info

Publication number: WO2023208242A1
Application number: PCT/CN2023/091994
Authority: WO
Inventors: 周磊; 邱爽
Original assignee: 澎湃云科技(深圳)有限公司
Priority date: 2022-04-29
Filing date: 2023-05-04
Publication date: 2023-11-02
Also published as: CN217507588U

Abstract

A terminal for arranging positive and negative electrodes of a battery at the same end, comprising: a conductive housing, the interior of the conductive housing being used for placing a battery cell, and a negative electrode of the battery cell being connected to the conductive housing for conduction; a circuit board that is provided at one end of the conductive housing; a positive electrode conductive strip that has one end connected to a positive electrode of the battery cell and the other end connected to the circuit board; and a negative electrode conductive strip that has one end connected to the conductive housing, i.e., connected to the negative electrode of the battery cell, and the other end connected to the circuit board. The positive electrode conductive strip and the negative electrode conductive strip are completely spaced apart to avoid conduction between them. In this way, positive and negative electrodes of a battery are both arranged on the circuit board at the same end, and the circuit board is capable of replacing the positive and negative electrodes of the battery cell so as to be in contact with conductive contacts of an external electronic device, thereby solving the problems that an existing battery structure is complex in mounting, disassembly, maintenance, and replacement and high in recycling difficulty, and has a high transportation risk, etc.

Description

A battery terminal with positive and negative poles arranged at the same end

This application claims priority to the Chinese patent application submitted to the China Patent Office on April 29, 2022, with application number 202221057332. incorporated in this application.

Technical field

The present application relates to the technical field of battery equipment, and specifically relates to a battery with terminals arranged at the same ends of the positive and negative poles.

Background technique

Today, common battery equipment on the market has the following problems: First, the positive and negative poles of the battery are not on the same side, and the corresponding installed electronic equipment needs to be connected in different directions; when a large number of devices are repeatedly installed or a single device is installed carelessly, It is easy to cause equipment failure. Secondly, batteries with positive and negative poles on the same side or batteries installed with additional supporting equipment often require welding of external circuits, which is not suitable for non-professionals to operate, greatly increases the risks during transportation, and also increases the difficulty of environmental recycling.

Therefore, how to provide a battery structure in which the positive and negative poles of the battery are arranged at the same ends and facilitate assembly is a problem that those skilled in the art need to solve.

Contents of the invention

The purpose of this application is to provide a method of arranging the positive and negative electrodes of a battery at the same end so that terminals thereof are arranged at the same end as the positive and negative electrodes of a battery assembled with electronic equipment.

In order to achieve the above purpose, this application provides a battery with terminals arranged at the same ends of the positive and negative poles, including: a conductive case, a circuit board, a positive conductive sheet and a negative conductive sheet;

The interior of the conductive case is used to place the battery core, and the conductive case is connected to the negative electrode of the battery core;

The circuit board is arranged at one end of the conductive housing to connect external conductive contacts;

One end of the positive conductive sheet is connected to the circuit board, and the other end is connected to the positive electrode of the battery cell; one end of the negative conductive sheet is connected to the circuit board, and the other end is connected to the conductive shell;

The positive conductive piece and the negative conductive piece are arranged at intervals.

In some embodiments, the circuit board includes: a conductive disc and a conductive ring disposed around the conductive disc;

The conductive disc is used to connect the positive conductive piece and the external conductive contact; the conductive ring is used to connect the negative conductive piece and the external conductive contact.

In some embodiments, a supporting connection bracket is provided between the circuit board and the conductive housing.

In some embodiments, an insulating support pad is provided between the conductive case and the battery core.

In some embodiments, the circuit board and the conductive housing are encapsulated with a heat shrinkable film.

Compared with the above background technology, this application is provided with a conductive case, the inside of the conductive case is used to place a battery core, and the negative electrode of the conductive battery core is connected to the conductive case; the circuit board is provided at one end of the conductive case; the positive electrode One end of the conductive sheet is connected to the positive electrode of the battery core, and the other end is connected to the circuit board; one end of the negative conductive sheet is connected to the conductive shell, that is, it is connected to the negative electrode of the battery core, and the other end is connected to the circuit board. The positive conductive sheet and the negative conductive sheet are completely spaced to prevent conduction between them. With this arrangement, the positive and negative poles of the battery are placed on the circuit board at the same end. The circuit board can replace the conductive contact between the battery and the external electronic device. There is no need to distinguish between the positive and negative poles during installation, thus avoiding the risk of misoperation. . The direct contact between the circuit board and the external contacts eliminates the need for additional connection lines and is simple to operate, making the conductive connection stable and effectively avoiding common problems of poor circuit contact. At the same time, external electronic devices can also be set up accordingly.

Description of the drawings

Figure 1 is a schematic cross-sectional view of terminals arranged at the same ends of the positive and negative poles of the battery provided by the embodiment of the present application;

Figure 2 is a partial enlarged view of part A in Figure 1;

Figure 3 is a schematic diagram of the external structure of a battery with terminals arranged at the same ends of the positive and negative poles provided by the embodiment of the present application;

Figure 4 is a top schematic diagram of terminals arranged at the same ends of the positive and negative poles of the battery provided by the embodiment of the present application.

in:

1-conductive shell, 2-circuit board, 21-conductive disc, 22-conductive ring, 23-conductive metal, 3-positive conductive sheet, 4-negative conductive sheet, 5-battery core, 51-positive tab , 52-negative pole tab, 6- Connection bracket, 7-insulating support pad, 8-heat shrink film, 9-contact electrode.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figures 1 and 2 of the specification, Figure 1 is a schematic cross-sectional view of terminals arranged at the same ends of the positive and negative poles of the battery provided by the embodiment of the present application. Figure 2 is a partial enlarged view of part A in Figure 1, including: a conductive shell Body 1, the inside of the conductive case 1 is used to place the battery core 5, and the negative electrode tab 52 at the bottom of the battery core 5 is connected to the conductive case 1; the circuit board 2 is arranged at one end of the conductive case 1, the circuit board 2 A PCBA board can be used, but is not limited to it; one end of the above-mentioned positive conductive sheet 3 is connected to the positive tab 51 of the battery cell 5, and the other end is connected to the circuit board 2; one end of the above-mentioned negative conductive sheet 4 is connected to the conductive shell 1, that is, with the battery core 5 The negative terminal is connected, and the other end is also connected to circuit board 2. At the same time, the positive conductive sheet 3 and the negative conductive sheet 4 are completely spaced apart, and the parts on the circuit board 2 are also insulated and separated to prevent conduction between the two. With this arrangement, the positive and negative electrodes of the battery are placed on the circuit board 2 at the same end. The circuit board 2 can replace the battery and contact the conductive contacts of the external electronic device. The conductive contacts can directly contact the circuit board 2 to connect the battery core 5 There is no need to distinguish between the positive and negative poles during installation, thus avoiding the risk of misoperation. And it is foreseeable that there is no need to set up additional connection lines between the circuit board 2 and the external conductive contacts, and the operation is simple. The direct contact between the contacts and the positive conductive sheet 3 and the negative conductive sheet 4 makes the conductive connection stable, which can effectively avoid common problems. The problem of poor circuit contact.

At the same time, electronic products only need to have a contact conductive structure on one side of the corresponding terminal, which indirectly reduces the assembly complexity of the equipment and the cost of using the equipment.

The above-mentioned positive conductive sheet 3 and negative conductive sheet 4 can be provided with vertical through holes on the circuit board 2 and then put conductive metal 23 into the through holes to achieve the conductive effect from the bottom surface to the top surface. Of course, the structural arrangement to achieve conduction is not limited to the above one. The conductive sheet can also be integrally arranged directly through both end surfaces of the circuit board 2. Other conventional arrangement methods are also applicable and will not be described again here.

The type of battery cell 5 mentioned above is not limited to one type. For example, exposed soft-pack batteries, snap-on batteries, etc. can be installed and used with this terminal. You only need to ensure that the positive and negative poles are connected in the correct way. The specific setting method can be based on the specific situation. The type corresponding changes will not be described in this article.

Further, with reference to Figures 3 to 4 of the specification, Figure 3 is a schematic diagram of the external structure of a battery with positive and negative terminals arranged at the same ends according to an embodiment of the present application. Figure 4 is a schematic diagram of the positive and negative electrodes of a battery provided by an embodiment of the present application. A schematic diagram of the top surface of terminals arranged at the same end, including: conductive discs 21 and conductive rings 22 arranged through both ends of the circuit board 2; and it is foreseeable that the circuit board 2 is also arranged between the conductive discs 21 and the conductive rings 22 Insulate the rings. The conductive disc 21 is used to connect the positive conductive sheet 3 and the external conductive contact, and the conductive ring 22 is used to connect the negative conductive sheet 4 and the external conductive contact; the relationship between the two can reduce the impact of the rotation of the battery on the normal power supply. Influence.

In one embodiment, the conductive disk 21 and the conductive ring 22 are arranged in a concentric structure, and the contact electrode 9 (external conductive contact) of the external electronic device for conduction can correspond to the conductive disk 21 and the conductive ring 22 In the structural arrangement, two contact electrodes 9 are arranged in a direction perpendicular to the surface of the circuit board 2, and a fixed distance is set between the two contact electrodes 9, and the fixed distance is set according to the width of the ring insulation interval. In this way, the concentric structure formed by the conductive disc 21 and the conductive ring 22 on the circuit board 2 can allow the battery to rotate along its circumferential direction during use, avoiding deflection from affecting the normal power supply of the battery, and increasing the stability and stability of the battery. Safety during use of finished electronic equipment.

The corresponding conductive housing 1 and circuit board 2 can also be configured as a matching structure of a cylindrical tube and a disk to facilitate adaptation to most electronic equipment on the market; of course, the specific structures of the conductive housing 1 and circuit board 2 are not limited to Therefore, setting up a square or special-shaped battery is a conventional replacement within the protection scope of the present application, and will not be described in detail here.

The above-mentioned conductive disc 21 and conductive ring 22 can be configured as conventional conductive metal bodies, or in one embodiment, part of the structure of the positive conductive sheet 3 can be directly used as the conductive disc 21, and part of the negative conductive sheet 4 can be used. The structure realizes its integrated arrangement as a conductive ring 22 to increase the structural integrity.

In one embodiment, the above-mentioned conductive disk 21 and conductive ring 22 do not penetrate the circuit board 2 but The two end faces of the circuit board 2 are respectively arranged into two sets of concentric circular structures, and the conductive disks 21 and the conductive rings 22 at both ends are connected correspondingly through the conductive metal 23; of course, the two ends of the circuit board 2 are connected. The specific setting structure is not limited to the above types, and can be changed according to actual needs. This article will not go into details.

Further, a connection bracket 6 is provided between the above-mentioned circuit board 2 and the conductive case 1. The connection bracket 6 is used to increase the connection stiffness between the terminal and the battery, and ensure that the battery core 5, the negative conductive sheet 4 and the positive conductive sheet 3 Separation insulation between. The connecting bracket 6 is set as a detachable structure. When the battery as a whole fails, the connecting bracket and the conductive shell 1 can be disassembled and separated to facilitate repair and maintenance. In daily use, it also facilitates the replacement and recycling of the battery, allowing the battery to be reused and reducing usage. cost, and protecting the environment.

Furthermore, an insulating support pad 7 is provided between the above-mentioned conductive case 1 and the battery core 5, and the insulating support pad 7 is filled in the assembly gap between the two; it has a certain elasticity, and can avoid conduction while achieving insulation sealing. The hard contact between the casing 1 and the battery core 5 causes wear. The selection and use of the above-mentioned insulating support pad 7 can refer to the existing technology, and will not be described in detail here.

Furthermore, the outer surfaces of the circuit board 2 and the conductive housing 1 are encapsulated with a heat shrinkable film 8. The heat shrinkable film 8 can be used to ensure the shape of the equipment, avoid external wear and tear, and extend the service life of the equipment. The selection and use of the above heat shrinkable film 8 can refer to the existing technology, and will not be described in detail here.

It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply the existence of any such relationship between these entities. Actual relationship or sequence.

The above is a detailed introduction to the terminals arranged at the same ends of the positive and negative poles of the battery provided by this application. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be noted that for those of ordinary skill in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

A battery with terminals arranged at the same ends of the positive and negative poles, characterized in that it includes: a conductive case (1), a circuit board (2), a positive conductive sheet (3) and a negative conductive sheet (4);

The interior of the conductive housing (1) is used to place a battery core (5), and the conductive housing (1) is connected to the negative electrode of the battery core (5);

The circuit board (2) is provided at one end of the conductive housing (1) to communicate with external conductive contacts;

One end of the positive conductive sheet (3) is connected to the circuit board (2), and the other end is connected to the positive electrode of the battery cell (5); one end of the negative conductive sheet (4) is connected to the circuit board (2), and the other end is connected to the circuit board (2). One end is connected to the conductive shell (1);

The positive conductive sheet (3) and the negative conductive sheet (4) are arranged at intervals.
The positive and negative terminals of the battery are arranged at the same ends according to claim 1, characterized in that the circuit board (2) includes: a conductive disc (21) and a conductive ring arranged around the conductive disc (21) (twenty two);

The conductive disc (21) is used to connect the positive conductive sheet (3) and the external conductive contact; the conductive ring (22) is used to connect the negative conductive sheet (4) and the external Conductive contacts.
The positive and negative battery terminals arranged at the same ends according to claim 2, characterized in that a connecting bracket (6) for support is provided between the circuit board (2) and the conductive housing (1).
The positive and negative battery terminals arranged at the same ends according to claim 3, characterized in that an insulating support pad (7) is provided between the conductive housing (1) and the battery core (5).
The battery terminals arranged at the same ends of the positive and negative poles according to claim 4, characterized in that the circuit board (2) and the conductive housing (1) are encapsulated with a heat shrinkable film (8).