CN217788836U

CN217788836U - Battery charging contact assembly and formation laminate applying same

Info

Publication number: CN217788836U
Application number: CN202222116574.8U
Authority: CN
Inventors: 杨国乐; 周明亮
Original assignee: Shenzhen Chuangyou Automation Equipment Co ltd
Current assignee: Shenzhen Chuangyou Automation Equipment Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-11
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a battery charging contact subassembly and applied this contact subassembly change into plywood, include: the contact seat, locate the PCB board of contact seat top surface, locate the nickel piece contact of PCB board top surface, locate the spring holder of contact seat bottom surface and locate the spring of spring holder bottom surface, the central line of spring and the coincidence of the mid point of nickel piece contact. The charging contact assembly adopts a nickel sheet contact, and the nickel sheet contact can be continuously used after being soiled and cleaned and is easy to clean; the top surface of the contact seat is provided with a boss, when the upper layer plate is pressed downwards, the boss can prop against the upper layer plate, so that the contact seat has a limiting function and prevents a battery on the lower layer plate from being damaged by pressing; the elastic pieces are arranged at the two ends of the nickel sheet contact, and the lug is clamped in the middle of the nickel sheet contact by the two elastic pieces, so that the lug is not easy to misplace and is in good contact.

Description

Battery charging contact assembly and formation laminate applying same

Technical Field

The utility model relates to a change into the field, especially relate to a battery charging contact subassembly and use the formation plywood of this contact subassembly.

Background

The battery needs to be subjected to hot-pressing formation, and the formation is completed in formation equipment. The laminate is an important part of the formation equipment, and the battery needs to be placed on the laminate for formation. The charging contact assembly is an important component on the laminate, and the tab of the battery is clamped on the charging contact assembly for charging and discharging. The applicant filed a utility model patent at 11/10/2021, which is an adjustable charging contact assembly with a tab battery at both ends (No. CN 216213670U), and the charging contact assembly has the following defects:

1. the gold-plated contact is adopted, after the gold-plated contact is soiled and cleaned, the gold-plated layer on the surface of the gold-plated contact is easy to remove, so that the contact cannot be used continuously after being scrapped;

2. when the laminate of the upper layer is pressed downwards, if the pressing is improper or excessive, the battery on the laminate of the lower layer is easily crushed;

3. only one side of the gold-plated contact is provided with a limiting part, and the pole ear of the battery can be dislocated in the practical application process.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a battery charging contact subassembly.

The technical scheme of the utility model as follows: a battery charging contact assembly comprising: the contact seat, locate the PCB board of contact seat top surface, locate the nickel piece contact of PCB board top surface, locate the spring holder of contact seat bottom surface and locating the spring of spring holder bottom surface, the central line of spring with the mid point coincidence of nickel piece contact.

Furthermore, the top surface of the contact seat is provided with a boss protruding upwards.

Furthermore, elastic sheets are arranged on two sides of the nickel sheet contact.

Furthermore, a through hole is formed in the elastic sheet, and a limiting column is arranged on the contact seat corresponding to the through hole.

Furthermore, the contact base comprises a horizontal part and a vertical part arranged on the side surface of the horizontal part, the vertical part is perpendicular to the horizontal part, the PCB is arranged on the top surface of the horizontal part, the horizontal part is fixedly arranged on the top surface of the laminate, the vertical part is fixedly arranged on the side surface of the laminate, and the spring base is positioned on the bottom surface of the laminate.

Further, a waist-shaped hole is formed in the vertical portion.

Further, the spring is a conical spring, and a large-diameter end of the conical spring is fixed on the spring seat.

Furthermore, the spring seat is a stainless steel sheet, and the spring seat and the spring are connected through punching, turning and riveting.

Furthermore, the bottom surface of the contact seat is provided with a limiting groove corresponding to the spring seat, and a threaded hole is formed in the limiting groove.

The utility model also provides a formation plywood, include: heating plate subassembly and the female subassembly of inserting of USB still include as above battery charging contact subassembly, battery charging contact subassembly with the female subassembly electric connection of inserting of USB.

Adopt above-mentioned scheme, the utility model discloses reside in following beneficial effect:

1. the charging contact assembly adopts a nickel sheet contact, and the nickel sheet contact can be continuously used after being soiled and cleaned and is easy to clean;

2. the top surface of the contact seat is provided with a boss, when the upper layer plate is pressed downwards, the boss can prop against the upper layer plate, so that the contact seat has a limiting function and prevents a battery on the lower layer plate from being damaged by pressing;

3. the elastic pieces are arranged at the two ends of the nickel sheet contact, and the lug is clamped in the middle of the nickel sheet contact by the two elastic pieces, so that the lug is not easy to misplace and is in good contact.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the present invention provides a battery charging contact assembly, including: contact seat 1, locate the PCB board 2 of 1 top surface of contact seat, locate the nickel piece contact 3 of 2 top surfaces of PCB board, locate the spring holder 4 of 1 bottom surface of contact seat and locating the spring 5 of 4 bottom surfaces of spring holder. The pole ear of the battery contacts with the nickel sheet contact 3 during formation. The central line of the spring 5 is superposed with the middle point of the nickel sheet contact 3, so that the spring 5 of the upper layer plate is just aligned with the battery tab of the lower layer plate during formation, and the battery tab is pressed on the nickel sheet contact 3 by the spring 5. The spring 5 is a conical spring, and the large-diameter end of the conical spring is fixed on the spring seat 4. In the process of pressing down, the small-diameter end of the conical spring presses the lug, so that the lug is attached to the nickel sheet contact 3 on the PCB 2 to ensure the formation effect of the battery. The conical spring can achieve a nearly fully compressed state when compressed, so that the conical spring can be adapted to batteries of different thicknesses.

The contact base 1 includes a horizontal portion 11 and a vertical portion 12 disposed on a side surface of the horizontal portion 11, wherein the vertical portion 12 is perpendicular to the horizontal portion 11, and in this embodiment, the horizontal portion 11 and the vertical portion 12 are an integral structure. The PCB board 2 is arranged on the top surface of the horizontal part 11, the horizontal part 11 is fixedly arranged on the top surface of the laminate, the vertical part 12 is fixedly arranged on the side surface of the laminate, and the spring seat 4 is attached to the bottom surface of the laminate.

The top surface of the horizontal part 11 of the contact base 1 is provided with a boss 6 protruding upwards, when the upper laminate is pressed downwards, the boss 6 can prop against the upper laminate, so that the contact base has a limiting function, and the upper laminate is prevented from pressing down the battery on the lower laminate. Therefore, the height of the boss 6 cannot be too high or too low, and if the height of the boss 6 is too high, the spring 5 of the upper charging contact assembly cannot well press the battery tab on the lower layer of plate; if the height of the bosses 6 is too low, the upper laminate may crush the cells on the lower laminate. The two sides of the nickel sheet contact 3 are provided with the elastic sheets 7, and the electrode lugs are clamped in the middle by the elastic sheets 7 on the two sides, so that the electrode lugs are not easy to misplace, and the good contact of the electrode lugs is ensured. In this embodiment, the elastic pieces 7 on the two sides are of an integral structure, the PCB 2 is provided with a slot corresponding to the position of the elastic piece 7, the connecting part between the two elastic pieces 7 is located below the PCB 2, the elastic piece 7 is provided with a through hole, the contact base 1 is provided with a limit post 13 corresponding to the through hole, and the limit post 13 penetrates through the through hole, so that the elastic piece 7 is completely fixed.

A waist-shaped hole 121 is formed in the vertical portion 12, a threaded hole is formed in the side face of the layer plate corresponding to the waist-shaped hole 121, and a hand-screwed screw 100 penetrates through the waist-shaped hole 121 and is locked in the threaded hole. When the battery formation device is used for battery formation of lugs at two ends, one charging contact assembly is placed on each of the left side and the right side of the battery, and each charging contact assembly corresponds to the formation of one lug. Due to the waist-shaped hole 121, the position of the charging contact assembly can be adjusted left and right, so that the distance between two sets of charging contact assemblies can be adjusted, and the battery charging device is suitable for batteries with various sizes.

In this embodiment, the spring seat 4 is a stainless steel sheet, and the spring seat 4 and the spring 5 are connected by punching, riveting and turning.

The bottom surface of the contact base 1 is provided with a limiting groove 14 corresponding to the spring seat 4, a threaded hole is formed in the limiting groove 14, the spring seat 4 is provided with a through hole corresponding to the threaded hole, and a screw penetrates through the through hole of the spring seat 4 and is locked in the threaded hole of the limiting groove 14 so as to fix the spring seat 4 on the contact base 1.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A battery charging contact assembly, comprising: the contact seat, locate the PCB board of contact seat top surface, locate the nickel piece contact of PCB board top surface, locate the spring holder of contact seat bottom surface and locating the spring of spring holder bottom surface, the central line of spring with the mid point coincidence of nickel piece contact.

2. The battery charging contact assembly of claim 1, wherein the top surface of the contact base is provided with an upwardly projecting boss.

3. The battery charging contact assembly of claim 1, wherein spring tabs are provided on both sides of the nickel tab contact.

4. The battery charging contact assembly of claim 3, wherein the spring plate is provided with a through hole, and the contact base is provided with a limiting post corresponding to the through hole.

5. The battery charging contact assembly of claim 1, wherein the contact base comprises a horizontal portion and a vertical portion disposed on a side surface of the horizontal portion, the vertical portion being perpendicular to the horizontal portion, the PCB being disposed on a top surface of the horizontal portion, the horizontal portion being fixedly attached to a top surface of the laminate, the vertical portion being fixedly attached to a side surface of the laminate, and the spring seat being disposed on a bottom surface of the laminate.

6. The battery charging contact assembly of claim 5, wherein the upright portion is provided with a kidney-shaped aperture.

7. The battery charging contact assembly of claim 1, wherein the spring is a conical spring having a large diameter end secured to the spring seat.

8. The battery charging contact assembly of claim 1, wherein the spring seat is a stainless steel sheet, and the spring seat and spring are connected by a stamped rivet.

9. The battery charging contact assembly of claim 1, wherein the bottom surface of the contact base is provided with a retaining groove corresponding to the spring base, the retaining groove having a threaded hole therein.

10. A chemical laminate, comprising: the heating plate assembly and the USB female plug assembly, further comprising the battery charging contact assembly according to any one of claims 1 to 9, wherein the battery charging contact assembly is electrically connected with the USB female plug assembly.