External plug-in type connected battery assembly with limiting and locking functions

Abstract

The utility model relates to an external plug-in connection battery assembly with limiting and locking functions, which comprises a battery module and a battery module socket, the end part of a battery module shell comprises a second thread and a concave-convex second limiting part, and the end surface of the battery module shell comprises a battery module positive electrode metal sheet and a battery module negative electrode metal sheet; the end part of the battery module socket shell comprises a first thread and a first concave-convex limiting part, and the end surface comprises a battery cathode connecting metal binding post and a battery anode connecting metal binding post which are embedded with springs; and in a fixed connection state of the battery module and the battery module socket, the first concave-convex limiting part and the second concave-convex limiting part are matched with each other, the first thread and the second thread are screwed, and the battery module positive and negative electrode metal sheets are respectively connected and conducted with the battery module socket negative and positive electrode connection metal binding posts. Limiting is achieved through the axial limiting part, battery module connection is achieved in a threaded locking mode, and the battery module connecting structure has the technical effects of being simple in structure, convenient to disassemble and assemble and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery module, specifically, relate to a kind of external plug-in connection's battery assembly with limiting locking function. BACKGROUND

[0002] The existing handheld device, battery module mostly uses the way that battery is inserted into certain cavity type battery compartment, then is fixed by battery compartment cover plate.This way, the positive and negative pole terminal of battery is generally connected by metal sheet plus spring.When battery endurance time is relatively long, multiple batteries are generally connected in series or parallel, at this time, battery module itself needs an independent closed body to assemble and close battery itself, form a battery pack, then insert battery compartment.

[0003] The contact type connection mode of metal sheet plus spring, spring is easily deformed, loose, connection is unreliable, and inconvenient to operate.Battery module itself actually uses two cavities (battery module itself one, battery compartment one, total two), both waste space and increase the volume, weight and cost of equipment, for handheld equipment, how to reduce volume, weight, reduce cost, often an important aspect.

[0004] In view of the above problems faced by battery module connection of general handheld device, the application provides a kind of external plug-in connection's battery assembly with limiting locking function, the electrical connection of the assembly is stable and reliable, convenient to operate, compact, can reduce volume, weight and cost. SUMMARY

[0005] The utility model wants to solve the technical problem to provide a kind of external plug-in connection's battery assembly with limiting locking function, this kind of assembly adopts concave-convex type limiting plug-in, realizes the plug-in and fixation of external battery module by screw locking mode, realizes the electrical connection of battery positive and negative pole by metal column embedded spring sheet, does not need additional battery cavity, does not need battery compartment cover plate, electrical connection is stable and reliable, plug-in is simple, small in size, light in weight, low in cost.The technical scheme adopted is as follows:

[0006] A kind of external plug-in connection's battery assembly with limiting locking function, including battery module and battery module socket, the battery module socket includes battery module socket shell, the battery module socket shell end includes first screw thread, first concave-convex limiting part, battery negative pole connection metal terminal and battery positive pole connection metal terminal embedded with spring, the battery negative pole connection metal terminal and battery positive pole connection metal terminal are respectively connected with the inside of the battery module socket to realize circuit connection;

[0007] The battery module comprises a battery module shell, a battery packaged in the battery module shell, and a power conversion protection circuit, an end of the battery module shell comprises a second thread, a second concave-convex limiting part, a battery module positive metal sheet, and a battery module negative metal sheet, the battery module positive metal sheet and the battery module negative metal sheet are electrically connected to the battery respectively;

[0008] In the fixed connection state of the battery module and the battery module socket, the first concave-convex limiting part and the second concave-convex limiting part match each other, the first thread and the second thread are screwed, the battery module positive metal sheet and the battery module socket negative electrode connecting metal terminal are connected and conducted, and the battery module negative metal sheet and the battery module socket positive electrode connecting metal terminal are connected and conducted.

[0009] Further,

[0010] The first concave-convex limiting part is a groove, and the second concave-convex limiting part is a convex point.

[0011] The first concave-convex limiting part and the second concave-convex limiting part are provided with four concave-convex limiting parts respectively, and each concave-convex limiting part is provided at equal intervals.

[0012] The battery positive electrode connecting metal terminal is located at the center of the end face of the battery module socket shell, the battery negative electrode connecting metal terminal is provided with two and is symmetrically arranged with respect to the center, the battery module positive metal sheet is located at the center of the end face of the battery module shell, and the battery module negative metal sheet is in a circular ring shape and takes the center of the end face of the battery module shell as a center.

[0013] The end face of the battery module socket shell is provided with a fixing screw, the height of the battery positive electrode connecting metal terminal and the battery negative electrode connecting metal terminal is higher than the fixing plane of the fixing screw, the end face of the battery module shell is provided with a fixing screw, and the battery module positive metal sheet and the negative metal sheet are lower than the fixing plane of the fixing screw.

[0014] The end of the battery module socket shell extends a connecting ring, the first thread is arranged on the outer side face of the connecting ring, and the first concave-convex limiting part is arranged on the inner side face of the connecting ring.

[0015] The battery module shell is in a cylindrical shape.

[0016] Compared with the prior art, the battery assembly with the external plug-in connection and the limiting and locking functions has the advantages that the plug-in and fixing of the external battery module are realized by the limiting plug-in and the screw locking mode, the electrical connection of the positive and negative poles of the battery is realized by the metal column embedded spring sheet, no additional battery cavity and battery compartment cover plate are needed, the electrical connection is stable and reliable, the plug-in is simple, the volume is small, the weight is light, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0018] Figure 1 Structure and installation schematic diagram of the embodiment of the present application;

[0019] Figure 2 Axial measurement schematic diagram of the battery module socket of the embodiment of the present application;

[0020] Figure 3 End surface schematic diagram of the battery module socket of the embodiment of the present application;

[0021] Figure 4 Axial measurement schematic diagram of the battery module of the embodiment of the present application;

[0022] Figure 5 End surface schematic diagram of the battery socket of the embodiment of the present application. DETAILED DESCRIPTION

[0023] The present application will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any form. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of changes and improvements can be made. These all belong to the protection scope of the present application.

[0024] The present application provides a battery assembly with external plug-in connection and limiting and locking functions, which realizes the plug-in and fixing of the external battery module by limiting plug-in and screw locking mode, realizes the electrical connection of the positive and negative poles of the battery by the metal column embedded spring sheet, does not need additional battery cavity and battery compartment cover plate, and has stable and reliable electrical connection, simple plug-in, small volume, light weight and low cost. The present application will be described in detail below with reference to specific embodiments and the drawings of the specification.

[0025] As shown in the accompanying drawings Figure 1As shown, a battery assembly with external plug-in connection and limiting locking function includes a battery module socket 1 and a battery module 2. The battery module 2 is well inserted and limited by the concave-convex limiting part 203 and the concave-convex limiting part 103 of the battery module socket 1, and is locked and fixed by the screw locking structure 201 of the battery module and the screw contact of the battery module socket. When installing the battery module, insert the battery module according to the arrow 3, and after limiting, rotate the screw locking device 201 in the clockwise direction shown by the arrow 4. The battery module 2 contains batteries, power conversion and protection circuits, battery fixing structure, etc.

[0026] As shown in Figure 2 and Figure 3 , the battery module socket 1 contains a battery module socket shell 101, the end of which extends a connecting ring, the outer side of which is provided with a first thread 102, and the inner side is provided with a first concave-convex limiting part 103. In addition, it also includes a battery negative electrode connecting metal terminal post 104 with an embedded spring, a battery positive electrode connecting metal terminal post 105 with an embedded spring, and a fixing screw 106. The thread 102 and the battery module socket shell 101 are of an integral structure, the positive and negative electrode metal terminal posts 104 and 105 realize the connection of the circuit inside the battery module socket 1, and the fixing screw 106 fixes the positive and negative electrode metal terminal posts 104 and 105 on the battery module socket 1. In order to realize sufficient contact and reduce path resistance, and to ensure sufficient current passing path, two negative electrode terminal posts 104 are specially set, and the diameter of the positive electrode terminal post is increased. In order to realize accurate and reliable limiting, in this embodiment, four concave-convex limiting parts are designed, the four limiting devices are separated by 90°, and are completely consistent, which can ensure that any rotation of 90° can be randomly limited and fixed, and the convenience of plug-in battery module is ensured. The height of the positive and negative terminal posts is slightly higher than the screw fixing plane, which ensures good and reliable electrical connection.

[0027] As shown in Figure 4 and Figure 5As shown, the battery module 2 includes the end threaded locking structure 201, the battery module shell 202, the second concave-convex limiting part (groove in the figure) 203, the battery module negative metal sheet 204, and the battery module positive metal sheet 205. The second thread is arranged on the inner side surface of the threaded locking structure 201. The battery pack and the power conversion and protection circuit are both encapsulated in the battery module shell 202, and are electrically connected with the internal power supply through the battery module positive metal sheet 205 and the battery module negative metal sheet 204. The battery module shell 202 adopts a cylindrical structure, which improves the hand feeling during holding and plugging. The outer surface of the battery module threaded locking structure 201 is designed to be concave-convex, which increases the friction force during plugging, locking and disassembling the battery module, and does not slip. The concave-convex limiting part 203 is designed with four grooves, which are separated by 90° and completely consistent, and can realize any accurate butt joint with the four concave-convex limiting parts 103 (protrusions in the figure) of the battery socket, thereby ensuring the convenience of plugging the battery module. The battery module negative metal sheet 204 adopts a circular ring metal sheet, the radius of the circular ring is consistent with the radius of the two negative terminal posts 104 of the battery module socket, which not only increases the strength of the metal sheet, but also ensures the reliability of the connection with the negative terminal of the battery module socket, and facilitates the installation of the metal sheet itself, thereby ensuring the strength and reliability of the installation. The radius of the battery module positive metal sheet 205 is consistent with that of the positive terminal post 105 of the battery module socket, thereby ensuring the reliability of the connection with the positive terminal of the battery module socket. The positive and negative terminal posts 204 and 205 of the battery module are slightly lower than the fixed plane, thereby ensuring good electrical contact.

[0028] The concave-convex limiting part 103 of the battery module socket can realize accurate limiting butt joint with the concave-convex limiting part 203 of the battery module, thereby ensuring the position fixation of the connection between the battery module 2 and the battery module socket 1. The four limiting parts of each are completely symmetrical and consistent, thereby ensuring any butt joint and increasing the convenience of plugging the battery. The thread 102 of the battery module socket can realize accurate thread butt joint with the threaded locking structure 201 of the battery module. Through the rotation of the threaded locking structure 201 of the battery module, the battery module 2 and the battery module socket 1 can be locked, and the spring in the positive and negative metal terminal posts 104 and 105 of the battery module socket can ensure the redundancy of the extension and contraction of the terminal post, thereby ensuring the reliable electrical connection and stable structure connection of the positive and negative metal sheets of the battery module 2 and the battery module socket 1.

[0029] Compared with the prior art, the battery assembly with the limiting and locking functions and the external plug-in connection has the following beneficial effects: the limiting plug-in and screw locking mode is adopted to realize the plug-in and fixation of the external battery module, the electrical connection of the positive and negative terminals of the battery is realized through the metal column embedded spring sheet, no additional battery cavity is needed, no battery compartment cover plate is needed, the electrical connection is stable and reliable, the plug-in is simple, the volume is small, the weight is light, and the cost is low.

[0030] The specific embodiments of the present application are described above. It needs to be understood that the present application is not limited to the specific embodiments described above, and various changes or modifications can be made by those skilled in the art within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A battery assembly with external plug-in connection and limiting locking function, comprising a battery module and a battery module socket, characterized in that: the battery module socket comprises a battery module socket shell, an end of the battery module socket shell comprises a first thread, a first concave-convex limiting part, a battery negative electrode connecting metal terminal with embedded spring and a battery positive electrode connecting metal terminal with embedded spring, the battery negative electrode connecting metal terminal and the battery positive electrode connecting metal terminal are respectively connected with the inside of the battery module socket in an electrical circuit; the battery module comprises a battery module shell, a battery encapsulated in the battery module shell and a power conversion protection circuit, an end of the battery module shell comprises a second thread, a second concave-convex limiting part, a battery module positive electrode metal sheet and a battery module negative electrode metal sheet, the battery module positive electrode metal sheet and the battery module negative electrode metal sheet are respectively connected with the battery in an electrical circuit; in the fixed connection state of the battery module and the battery module socket, the first concave-convex limiting part and the second concave-convex limiting part match with each other, the first thread is screwed with the second thread, the battery module positive electrode metal sheet and the battery negative electrode connecting metal terminal of the battery module socket are connected and conducted, and the battery module negative electrode metal sheet and the battery positive electrode connecting metal terminal of the battery module socket are connected and conducted. The first concave-convex limiting part is a groove, and the second concave-convex limiting part is a convex point. The first concave-convex limiting part and the second concave-convex limiting part are respectively provided with four, and the first concave-convex limiting part and the second concave-convex limiting part are equally spaced. The battery positive electrode connecting metal terminal is located at the center of the end face of the battery module socket shell, the battery negative electrode connecting metal terminal is provided with two and is symmetrically arranged with respect to the center, the battery module positive electrode metal sheet is located at the center of the end face of the battery module shell, and the battery module negative electrode metal sheet is in the shape of a ring with the center of the end face of the battery module shell as the center.

2. The battery assembly with a limiting locking function of an external plug-in connection according to claim 1, characterized in that: The end face of the battery module socket shell is provided with a fixing screw, the height of the battery positive electrode connecting metal terminal and the battery negative electrode connecting metal terminal is higher than the fixing plane of the fixing screw, the end face of the battery module shell is provided with a fixing screw, and the battery module positive electrode metal sheet and the negative electrode metal sheet are lower than the fixing plane of the fixing screw.

3. The battery assembly of claim 2, wherein: The end of the battery module socket shell extends a connecting ring, the first thread is arranged on the outer side of the connecting ring, and the first concave-convex limiting part is arranged on the inner side of the connecting ring.

4. The battery assembly with a limiting locking function of an external plug-in connection according to claim 1, characterized in that: The battery module shell is in the shape of a cylinder.

5. The battery assembly of claim 4, wherein: ​ 6. The battery assembly of claim 1, wherein: ​ 7. The battery assembly of claim 1, wherein: ​

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