CN210984849U

CN210984849U - Connection terminal and battery structure

Info

Publication number: CN210984849U
Application number: CN201921116394.1U
Authority: CN
Inventors: 杨贵富; 李小兵; 江宜建
Original assignee: Boke Energy System Shenzhen Co ltd
Current assignee: Boke Energy System Shenzhen Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-07-10
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a connecting terminal, this connecting terminal include column portion and joint portion, the one end of column portion is connected the end cap, the other end of column portion is connected the joint portion. And the radial section of the combining part is gradually reduced from the end cap to the columnar part. The connecting holes of different parts of the connecting terminal can be ensured to be closely matched, the deviation of the connecting terminal is prevented, the reliability of a device is ensured, and the flatness of the connecting terminal is also ensured when the surface mounting is carried out. Furthermore, the utility model also discloses a battery structure.

Description

Connection terminal and battery structure

Technical Field

The utility model relates to the technical field of machinery, especially, relate to a connecting terminal and battery structure.

Background

As science and technology have been developed, various portable or intelligent electronic or mechanical devices are increasingly present in daily life. The reliability of these electronic or mechanical devices depends to a large extent on the robustness of the connections between the various components. For example, many portable applications of electronic devices are limited by power supply. The cylindrical battery is a battery with high capacity, long cycle life and wide temperature of the use environment. The cylindrical battery product is applied to solar lamps, lawn lamps, backup energy sources, electric tools, toy models or photovoltaic energy sources. The traditional output mode of the cylindrical battery is a plug cord or a cuboid hardware terminal and shell low-temperature injection molding process. And present five metals terminal often can't form firm combination with the cylinder battery is inside, appears falling or leads to five metals terminal skew or drops easily after the striking in the cylinder battery, has influenced overall structure's reliability.

SUMMERY OF THE UTILITY MODEL

On the one hand, the embodiment of the utility model provides a connecting terminal to solve the not high problem of part connection reliability.

On the other hand, the embodiment of the utility model provides a battery structure to solve the not high problem of battery structural connection reliability.

A connecting terminal comprises an end cap and a connecting end, wherein the connecting end comprises a columnar part and a combining part, one end of the columnar part is connected with the end cap, and the other end of the columnar part is connected with the combining part; the radial section of the combining part is gradually reduced from the end cap to the columnar part.

Preferably, the joint portion includes at least two truncated cone structures connected end to end along the axial direction, wherein an included angle between a generatrix and a central axis of each of the truncated cone structures is gradually increased from the end cap toward the columnar portion.

Preferably, the connecting end is further provided with an opening which axially penetrates through the combining part and extends to the columnar part.

Preferably, the opening is a cross opening.

Preferably, the end cap is provided with a groove on a surface thereof facing the connecting end.

Preferably, the grooves are spaced around the cylindrical portion on a surface of the end cap facing the connection end.

Preferably, the grooves are arranged in a shape of a separate quincunx groove on a surface of the end cap facing the connection end.

Preferably, the end cap comprises an outer edge portion, the outer edge portion is arranged at one end far away from the columnar portion, and the radial section of the outer edge portion is gradually reduced from the columnar portion to the end cap.

A battery structure comprises the connecting terminal.

Preferably, the battery structure further comprises a battery holder, a PCM protection plate; the battery support is provided with a cylindrical boss, and the connecting terminal penetrates through the connecting hole of the PCM protection plate and is connected with the cylindrical boss of the battery support.

An embodiment of the utility model provides an among the connecting terminal, this connecting terminal includes column portion and joint portion, the one end of column portion is connected the end cap, the other end of column portion is connected the joint portion. And the radial section of the combining part is gradually reduced from the end cap to the columnar part. The connecting holes of different parts of the connecting terminal can be ensured to be closely matched, the deviation of the connecting terminal is prevented, the reliability of a device is ensured, and the flatness of the connecting terminal is also ensured when the surface mounting is carried out.

The embodiment of the utility model provides an among the battery structure, through adopt above-mentioned embodiment in the battery structure connecting terminal, the connecting hole that connecting terminal and battery structure different parts can be guaranteed to this connecting terminal closely cooperates, prevents connecting terminal's skew, has guaranteed the reliability of device, has also increased whole battery structure's reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a connection terminal according to an embodiment of the present invention;

fig. 2 is a right side view of a connection terminal according to an embodiment of the present invention;

fig. 3 is a front view of a connection terminal according to an embodiment of the present invention;

fig. 4 is a top view of a connection terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a battery structure according to an embodiment of the present invention;

the reference numerals in the specification are as follows:

10. a connection terminal; 11. an end cap; 12. a connecting end; 111. a trench; 112. an outer edge portion; 121. a columnar portion; 122. a bonding section; 123. a cross opening;

20. a PCM protection panel;

30. a battery holder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

An embodiment of the present invention provides a connection terminal 10, as shown in fig. 1 to 4, the connection terminal 10 includes an end cap 11 and a connection end 12, the connection end 12 includes a column portion 121 and a joint portion 122, one end of the column portion 121 is connected to the end cap 11, and the other end of the column portion 121 is connected to the joint portion 122. Wherein, the end cap 11 and the connecting end 12 are in a stepped columnar structure, which can realize automatic patch attachment when connecting the components.

The radial section of the connecting portion 122 is gradually reduced from the end cap to the columnar portion, as shown in fig. 2, the shape of the connecting portion 122 can ensure that the connecting terminal 10 is tightly fitted with the connecting holes of different parts, so as to prevent the connecting terminal 10 from shifting, and ensure the flatness of the connecting terminal during mounting.

In this embodiment, the connection terminal includes a columnar portion and a bonding portion, one end of the columnar portion is connected to the end cap, and the other end of the columnar portion is connected to the bonding portion. And the radial section of the combining part is gradually reduced from the end cap to the columnar part. The connection terminal 10 can be ensured to be closely matched with the connection holes of different parts, the deviation of the connection terminal 10 is prevented, and the flatness of the connection terminal during surface mounting is also ensured.

In one embodiment, the coupling portion 122 includes at least two truncated cone structures connected end to end along the axial direction. As shown in fig. 2, the coupling portion 122 includes a plurality of truncated cone structures connected end to end in the axial direction. And the included angle between the generatrix and the central axis of each circular truncated cone structure is gradually increased from the end cap to the columnar part. Taking fig. 3 as an example, an included angle between a generatrix of the circular truncated cone structure at the top and the central axis is a. The round platform structure with a plurality of gradients is arranged to form the joint part, so that the connection terminal 10 can be tightly matched with a connecting hole of a part when being connected with the part, the deviation of the connection terminal 10 is prevented, and the flatness of the connection terminal during automatic surface mounting is also ensured.

In one embodiment, the connection end 12 of the connection terminal is further provided with an opening, as shown in fig. 2, which axially penetrates the joint portion and extends to the columnar portion. Through setting up the opening at link 12, guarantee that link 12 of connecting terminal 10 has elastic deformation, can guarantee that the connecting hole of connecting terminal 10 and other parts realizes interference fit to, this opening also can increase soldering tin intensity, has further guaranteed the reliability of device, when whole component or device appear falling or collide, also can prevent connecting terminal's skew or drop, avoid influencing the reliability of whole component or device.

In one embodiment, the opening of the connecting end 12 is a cross opening. As shown in fig. 1 and 4, the cross-shaped opening 123 axially penetrates the coupling portion 122 and extends to the column portion 121. The cross-shaped opening ensures that the connecting terminal has better elastic deformation, the soldering tin strength is further increased, and the reliability of the device is further ensured.

In one embodiment, the end cap is provided with a groove on a surface facing the connecting end. Optionally, the grooves are square grooves, and the number of the grooves is at least one. In the embodiment, the grooves are arranged on the surface of the end cap facing the connecting end at intervals, so that the tin immersion area of the connecting terminal can be increased in the assembling process, and the assembling reliability of the connecting terminal is further increased.

Preferably, as shown in figures 1 and 4, the grooves 111 are spaced around the cylindrical portion on the end cap surface facing the connection end. The tin immersion area of the connecting terminal is further increased by arranging grooves at intervals around the columnar portion on the surface of the end cap facing the connecting end.

Further, the grooves are arranged in a shape of separated quincuncial grooves on a surface of the end cap facing the connection end. As shown in fig. 1 and 4, grooves 111 are formed on the surface of the end cap facing the connection end, and the grooves 111 are spaced apart and have a shape of a separate quincunx groove on the surface of the end cap facing the connection end.

In one embodiment, the end cap includes an outer rim portion 112, the outer rim portion 112 is disposed at an end away from the pillar portion 121, and as shown in fig. 2, a radial cross section of the outer rim portion 112 is gradually reduced from the pillar portion toward the end cap.

An embodiment of the utility model also relates to a battery structure, this battery structure include above-mentioned arbitrary embodiment connecting terminal. By employing the connection terminals described in the above embodiments in the battery structure, the reliability of the entire battery structure is increased. Preferably, the connection terminals described in the above embodiments are employed in a hardware cap of a battery structure.

In one embodiment, as shown in fig. 5, the battery structure further includes a PCM protection plate 20 and a battery holder 30. The battery holder 30 is used for carrying the battery cell and the PCM protection board 20. The battery holder 30 is provided with a cylindrical boss, and the connection terminal 10 passes through the connection hole of the PCM protection board 20 to be connected with the cylindrical boss of the battery holder. Optionally, the connection terminal is at least one.

The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. A connecting terminal is characterized by comprising an end cap and a connecting end, wherein the connecting end comprises a columnar part and a combining part, one end of the columnar part is connected with the end cap, and the other end of the columnar part is connected with the combining part;

the radial section of the combining part is gradually reduced from the end cap to the columnar part.

2. A connecting terminal according to claim 1, wherein the engaging portion comprises at least two truncated cone structures connected end to end in the axial direction, wherein the included angle between the generatrix and the central axis of each of the truncated cone structures increases from the end cap towards the cylindrical portion.

3. A connecting terminal according to claim 1 or 2, wherein the connecting end is further provided with an opening which extends through the joining portion in the axial direction and to the columnar portion.

4. A connecting terminal according to claim 3, characterised in that the opening is a cross opening.

5. A connecting terminal according to one of claims 1, 2 or 4, characterised in that the end cap is provided with a groove on its surface facing the connecting end.

6. A connecting terminal according to claim 5, wherein the grooves are spaced around the cylindrical portion on the end cap surface facing the connecting end.

7. A connecting terminal according to claim 5, wherein the grooves are provided in the shape of separate quincuncial grooves on the surface of the end cap facing the connecting end.

8. A connecting terminal according to any one of claims 1, 2 or 4, wherein the end cap includes an outer edge portion disposed at an end remote from the cylindrical portion, the outer edge portion having a radial cross-section that tapers from the cylindrical portion toward the end cap.

9. A battery structure characterized in that it comprises a connection terminal according to any one of claims 1 to 8.

10. The battery structure according to claim 9, further comprising a battery holder, a PCM protection board;

the battery support is provided with a cylindrical boss, and the connecting terminal penetrates through the connecting hole of the PCM protection plate and is connected with the cylindrical boss of the battery support.