Circuit board
By designing the copper sleeve on the circuit board and installing it using stamping forming process, the problem of unstable copper column connection is solved, and higher stability and simplified production processes are achieved.
Patent Information
- Application Number
- CN202421614600.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The copper column connections of existing circuit boards are unstable, resulting in poor stability and require additional pads for support, but this can affect the stability of the conductive connection and increase production complexity.
A circuit board is designed, which uses a copper sleeve to install in the conductive socket. The copper sleeve is pressed and molded to make the copper sleeve close to the inner wall of the conductive socket and the surface of the circuit board to form a stable connection structure.
The stable installation of copper sleeve on the circuit board is achieved, which avoids the problem of excessive height of copper columns, improves connection stability and firmness, and simplifies production processes.
Smart Images
Figure CN222803095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printed circuits, in particular to a circuit board and its components. Background Art
[0002] The connector structure of the circuit board generally welds the copper pillar directly to the circuit board, and makes an electrical connection with the pole ear of the lithium battery through the copper pillar. The connector structure on the existing circuit board uses welding, which makes the height of the copper pillar too high and has the problem of poor stability. It is often necessary to add additional pads for support after welding. This method has the following disadvantages: on the one hand, the pads will affect the conductive connection stability of the copper pillars, and on the other hand, due to the increase in steps, there is a risk of missing pads during the production process. Utility Model Content
[0003] In view of this, the utility model provides a circuit board, which is used to solve the problem of unstable connection of copper pillars of the circuit board in the prior art.
[0004] To achieve one or part or all of the above purposes or other purposes, the utility model provides: a circuit board, including: a circuit board and a copper sleeve;
[0005] The circuit board is provided with a conductive jack;
[0006] The copper sleeve is installed in the conductive socket; and the inner hole of the copper sleeve forms a connecting cavity, which is used for external equipment.
[0007] Preferably, one end of the copper sleeve is embedded in the conductive socket, and the other end of the copper sleeve forms a flange, the flange fits the surface of the circuit board, and the copper sleeve is formed by a stamping process so that the part of the copper sleeve inserted into the conductive socket is close to the inner wall of the conductive socket and the flange is close to the surface of the circuit board.
[0008] Preferably, the end edges of the conductive socket are rounded.
[0009] Preferably, a plurality of reinforcing ribs are provided on the inner wall of the connecting cavity of the copper sleeve, and the reinforcing ribs are extended along the axial direction of the copper sleeve.
[0010] Preferably, the plurality of reinforcing ribs are evenly distributed along the circumferential spacing of the copper sleeve.
[0011] Preferably, the reinforcing rib is provided with a rounded corner at one end of the flange close to the copper sleeve.
[0012] Preferably, the length of the copper sleeve is less than or equal to the depth of the conductive socket.
[0013] Implementing the embodiments of the present utility model will have the following beneficial effects:
[0014] After adopting the above-mentioned circuit board, the copper sleeve body is attached to the inner wall of the conductive socket and the flange of the copper sleeve is attached to the surface of the circuit board through a stamping process, so that the copper sleeve can be stably installed on the circuit board. Since the copper sleeve is stamped into the conductive socket of the circuit board, the height of the copper sleeve on the circuit board is very small, and there is no shaking on the circuit board. There is no need to use other parts for reinforcement, so the processing procedure of the circuit board is simple, and the copper sleeve has good stability and firmness on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] in:
[0017] Figure 1 This is a schematic diagram of the overall structure of the circuit board proposed by the utility model;
[0018] Figure 2 This is a cross-sectional view of the overall structure of the circuit board proposed by the utility model.
[0019] Reference numerals: 1 circuit board, 10 conductive socket, 2 copper sleeve, 20 flange, 21 reinforcing rib. DETAILED DESCRIPTION
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0023] like Figure 1-2 The example shown is an embodiment provided by the utility model.
[0024] The utility model embodiment provides a circuit board, including: a circuit board 1, a copper sleeve 2; a conductive socket 10 is provided on the circuit board 1; the copper sleeve 2 is installed in the conductive socket 10; the inner hole of the copper sleeve 2 forms a connection cavity, and the connection cavity is used for external devices. The circuit board is generally used to connect external devices such as lithium batteries. Specifically, the pole ear of the lithium battery is inserted into the connection cavity of the copper sleeve 2 so that the lithium battery establishes an electrical connection with the circuit board. For the convenience of explanation, this embodiment uses the pole ear of the lithium battery as the structure of the external device. Specifically, one end of the copper sleeve 2 is embedded in the conductive socket 10, and the other end of the copper sleeve 2 forms a flange 20. The flange 20 fits the surface of the circuit board 1, and the copper sleeve 2 is formed by a stamping process so that the part of the copper sleeve 2 inserted into the conductive socket 10 is close to the inner wall of the conductive socket 10. The flange 20 is in close contact with the surface of the circuit board 1. In this embodiment, the length of the copper sleeve 2 is less than or equal to the depth of the conductive socket 10, so that the copper sleeve 2 is stamped and fixed in the conductive socket 10, and the end without the flange 20 does not extend out of the conductive socket 10, so that the back of the circuit board 1 remains flat. When one end of the copper sleeve 2 is set as the flange 20, when the pole ear of the lithium battery is inserted into the connecting cavity of the copper sleeve 2 from the end with the flange 20, the copper sleeve 2 will not be axially displaced, which plays a positioning role and effectively improves the installation stability of the copper sleeve 2 on the circuit board 1.
[0025] Based on the above scheme, a production process of a circuit board in this embodiment is as follows: the copper sleeve 2 is fixed in the conductive socket 10 by a stamping process, so that the inner hole of the copper sleeve 2 forms a connecting cavity for connecting the pole ear of the lithium battery, etc.; in this embodiment, the copper sleeve 2 body is attached to the inner wall of the conductive socket 10 and the flange 20 of the copper sleeve 2 is attached to the surface of the circuit board 1 by a stamping process, so that the copper sleeve 2 can be stably installed on the circuit board 1. Since the copper sleeve 2 is stamped in the conductive socket 10 of the circuit board 1, the height of the copper sleeve 2 on the circuit board 1 is very small, and it will not shake on the circuit board 1. There is no need to use other parts for reinforcement, so that the processing procedure of the circuit board is simple, and the copper sleeve 2 has good stability and firmness on the circuit board.
[0026] In order to facilitate the insertion of the lithium battery's pole ear into the connecting cavity of the copper sleeve 2, the end edge of the conductive socket 10 is chamfered, so that the flange 20 of the copper sleeve 2 after stamping can be combined into a rounded form, thereby facilitating the insertion of the lithium battery's pole ear into the connecting cavity of the copper sleeve 2, reducing the insertion resistance of the lithium battery's pole ear and increasing the connection guiding effect.
[0027] See attached Figure 2 , a plurality of reinforcing ribs 21 are arranged on the inner wall of the connection cavity of the copper sleeve 2, and the reinforcing ribs 21 are arranged to extend along the axial direction of the copper sleeve 2. Specifically, the plurality of reinforcing ribs 21 are evenly distributed along the circumferential spacing of the copper sleeve 2. In this embodiment, the diameter of the smallest circle enclosed by the plurality of reinforcing ribs 21 is slightly smaller than the outer diameter of the pole ear of the lithium battery. When the pole ear of the lithium battery is inserted into the connection cavity of the copper sleeve 2, the plurality of reinforcing ribs 21 hold the pole ear of the lithium battery tightly by deformation, so that the pole ear of the lithium battery can be fixed in the copper sleeve 2 more stably; and the form of the reinforcing ribs 21 and the pole ear of the lithium battery are tightly fitted, so that the pole ear of the lithium battery can be prevented from being inserted into the copper sleeve 2 due to the large gap. The resistance between the pole ear of the lithium battery and the copper sleeve 2 is reduced by increasing the effective contact area between the pole ear of the lithium battery and the copper sleeve 2. Accordingly, in order to facilitate the rapid insertion of the pole ear of the lithium battery into the connection cavity of the copper sleeve 2, the reinforcing ribs 21 are rounded at one end of the flange 20 close to the copper sleeve 2, and the rounded corner design provides a connection guide.
[0028] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.
Claims
1. A circuit board, characterized in that: include: Circuit board and copper sleeve; The circuit board is provided with a conductive jack; The copper sleeve is installed in the conductive socket; and the inner hole of the copper sleeve forms a connecting cavity, which is used for external equipment.
2. The circuit board according to claim 1, characterized in that: One end of the copper sleeve is embedded in the conductive socket, and the other end of the copper sleeve forms a flange, which fits the surface of the circuit board. The copper sleeve is formed by a stamping process so that the part of the copper sleeve inserted into the conductive socket is in close contact with the inner wall of the conductive socket and the flange is in close contact with the surface of the circuit board.
3. The circuit board according to claim 2, characterized in that: The end edge of the conductive socket is rounded.
4. The circuit board according to claim 3, characterized in that: A plurality of reinforcing ribs are arranged on the inner wall of the connecting cavity of the copper sleeve, and the reinforcing ribs are extended along the axial direction of the copper sleeve.
5. The circuit board according to claim 4, characterized in that: The plurality of reinforcing ribs are evenly distributed along the circumferential spacing of the copper sleeve.
6. The circuit board according to claim 4, characterized in that: The reinforcing rib is provided with a rounded corner at one end of the flange close to the copper sleeve.
7. The circuit board according to claim 4, characterized in that: The length of the copper sleeve is less than or equal to the depth of the conductive socket.