Automobile lithium battery plugging assembly

Abstract

The utility model discloses an automobile lithium battery plugging assembly, which comprises a shell, an electronic circuit board, a connector male end and a connector female end, a through hole is formed in the top of the shell, a guide limiting sleeve is fixedly arranged at the top of the shell, and the guide limiting sleeve and the shell are integrally formed; the electronic circuit board is fixedly located in the shell, the connector male end is fixedly located at the top of the electronic circuit board and located under the penetrating hole, the connector female end is inserted into the guide limiting sleeve, and the PIN fixing terminal of the connector male end is inserted into the connector female end. The connector has the advantages that the connector male end and the electronic circuit board are firmly fixed, the bonding strength is high, the shell is prevented from being deformed due to plugging and unplugging, and the sealing degree of the shell and the connector female end is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery connector technology field especially relates to a car lithium battery connector subassembly. BACKGROUND

[0002] Lithium battery has green environmental protection, safe, excellent performance rechargeable new energy, has the advantages such as long cycle life, low temperature performance is good, no memory, no pollution. Connector is also called connector, is used to connect two active devices, can transmit current or signal. In the use of car lithium battery, the internal electronic circuit board of lithium battery and the car machine system are connected through the connector.

[0003] As Figure 1 As shown in the prior art, in order to achieve the sealing effect of preventing water and dust in the product, a sealing ring is placed between the top of the connector male end A and the inner bottom wall of the shell C, and the shell C and the connector male end A are screwed and connected through the screw to press the sealing ring, so that the connector male end A and the shell C are sealed.

[0004] However, this way requires that the shell and the connector connection have high flatness, the connector male end is directly locked on the electronic circuit board, and the bolt locking force is too large to cause the deformation of the shell and the electronic circuit board, thereby affecting the function and sealing property of the connector. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a car lithium battery connector subassembly, which has the advantages of firm fixation of the connector male end and the electronic circuit board, high bonding strength, prevention of deformation of the shell due to plugging and unplugging, and good sealing degree of the shell and the connector female end.

[0006] The above technical purpose of the utility model is achieved by the following technical scheme:

[0007] A car lithium battery connector subassembly, comprising a shell, an electronic circuit board, a connector male end and a connector female end.

[0008] The top of the shell is provided with a through hole, and a guide limiting sleeve is fixedly arranged at the through hole of the top of the shell, and the guide limiting sleeve is integrally formed with the shell.

[0009] The electronic circuit board is fixedly arranged in the shell, the connector male end is fixedly arranged on the top of the electronic circuit board, the connector male end is located directly below the through hole, the connector female end is inserted into the guide limiting sleeve, and the PIN fixed terminal of the connector male end is inserted into the connector female end.

[0010] The preferred scheme is as follows:

[0011] Preferably, the PIN fixing terminal of the male connector is vertically located inside the male connector. Mounting plates are fixedly installed at the lower ends of the left and right sides of the male connector. Each mounting plate has a first circular through hole at its top. Two threaded through holes are opened at the connection between the electronic circuit board and the male connector. The two threaded through holes correspond to the positions of the two first circular through holes. Each first circular through hole has a screw installed inside it, and each screw is threadedly connected to its corresponding threaded through hole.

[0012] Preferably, the lower end of the connector female end is provided with a sealing ring, which abuts against the lower inner end of the guide limiting sleeve.

[0013] In summary, this utility model prevents deformation of the housing by fixing the male connector to the electronic circuit board. At the same time, the male connector is fixed to the electronic circuit board with screws, and the PI N fixing terminal at the bottom of the male connector is welded to the electronic circuit board, resulting in high bonding strength. No external force is applied to the housing when the female connector is inserted or removed, thus improving the service life of the connector. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structural design in the background technology;

[0015] Figure 2 This is a schematic diagram of the overall structural design of the embodiment.

[0016] In the diagram, 1 is the outer casing; 2 is the electronic circuit board; 3 is the male connector terminal; 4 is the female connector terminal; 5 is the guide limit sleeve; 6 is the mounting plate; 7 is the screw; and 8 is the sealing ring. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings.

[0019] An automotive lithium battery connector assembly, such as Figure 2 As shown, it includes a housing 1, an electronic circuit board 2, a male connector 3, and a female connector 4;

[0020] The top of the outer shell 1 has a perforation, and a guide limiting sleeve 5 is fixedly installed at the perforation on the top of the outer shell 1. The guide limiting sleeve 5 is integrally formed with the outer shell 1, and the outer shell 1 and the guide limiting sleeve 5 are injection molded.

[0021] The electronic circuit board 2 is fixed inside the housing 1. The male connector 3 is fixed on the top of the electronic circuit board 2 and is located directly below the through hole. The female connector 4 is inserted into the guide limiting sleeve 5. The guide limiting sleeve 5 has a hole inside that matches the female connector 4. The lower end of the female connector 4 has a sealing ring 8. The sealing ring 8 abuts against the lower end of the guide limiting sleeve 5. The PIN fixed terminal of the male connector 3 is inserted into the female connector 4.

[0022] The PIN fixing terminal of the male connector 3 is vertically located inside the male connector 3. Mounting plates 6 are fixedly installed on the lower ends of the left and right sides of the male connector 3, respectively. Each mounting plate 6 has a first circular through hole on its top. The male connector 3 is made of high-temperature resistant resin material. The male connector 3 and the PIN fixing terminal are fixed by injection molding using a nano-injection molding process. Nano-pores are formed on the surface of the PIN fixing terminal. The PIN fixing terminal is placed into the mold for injection molding. The high-temperature resistant resin and metal form a tight bonding structure and the injection molding is completed. Thus, the male connector 3 and the two mounting plates 6 are integrally formed.

[0023] Among them, nano-injection molding technology (NMT) involves first nano-treating the metal surface, then directly injecting plastic onto the metal surface to obtain an integrated structure of plastic and metal. NMT technology solves the problem of poor adhesion between plastic and metal, and truly realizes the integration of plastic and metal.

[0024] Two threaded holes are provided at the connection between the electronic circuit board 2 and the male connector 3. The two threaded holes correspond to the positions of the two first circular holes. Each first circular hole is provided with a screw 7. Each screw 7 is threadedly connected to its corresponding threaded hole. The lower end of the PIN fixing terminal of the male connector 3 is inserted into the electronic circuit board 2 and fixed by soldering. Then, the screw 7 is threadedly connected to the threaded hole to further fix the male connector 3.

[0025] The connector female end 4 is existing technology. It is a square block with a protrusion on its left side for limiting.

[0026] Specific implementation process:

[0027] Insert the female connector 4 through the top of the guide sleeve 5, and insert the top of the PIN fixing terminal of the male connector 3 through the bottom of the female connector 4. As the female connector 4 is continuously inserted, the sealing ring 8 at the lower end of the female connector 4 is compressed in the guide sleeve 5, and the female connector 4 is limited in the guide sleeve 5, that is, the female connector 4 is inserted.

[0028] When the female connector 4 is pulled out, since the female connector 4 is not connected to the outer casing 1, the outer casing 1 will not deform during insertion and removal, thus ensuring the sealing of the outer casing 1. At the same time, since the electronic circuit board 2 is fixed at the four corners, and the male connector 3 is fixed to the electronic circuit board 2 by soldering and screws 7, displacement of the male connector 3 is further prevented, ensuring the stability of the connection between the male connector 3 and the electronic circuit board 2.

[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A lithium battery connector assembly for automobiles, characterized in that: Includes a housing (1), an electronic circuit board (2), male connector terminals (3), and female connector terminals (4); The top of the outer shell (1) is provided with a perforation, and a guide limiting sleeve (5) is fixedly provided at the perforation on the top of the outer shell (1). The guide limiting sleeve (5) is integrally formed with the outer shell (1). The electronic circuit board (2) is fixed inside the outer shell (1). The male connector (3) is fixed on the top of the electronic circuit board (2). The male connector (3) is located directly below the through hole. The female connector (4) is inserted into the guide limiting sleeve (5). The PIN fixing terminal of the male connector (3) is inserted into the female connector (4).

2. The automotive lithium battery connector assembly according to claim 1, characterized in that: The PIN fixing terminal of the male connector (3) is vertically located inside the male connector (3). Mounting plates (6) are fixedly provided at the lower ends of the left and right sides of the male connector (3). Each mounting plate (6) has a first circular through hole at its top. Two threaded through holes are provided at the connection between the electronic circuit board (2) and the male connector (3). The two threaded through holes correspond to the positions of the two first circular through holes. Each first circular through hole is provided with a screw (7). Each screw (7) is threadedly connected to its corresponding threaded through hole.

3. The automotive lithium battery connector assembly according to claim 1, characterized in that: The lower end of the connector female end (4) is provided with a sealing ring (8), which abuts against the lower end of the guide limiting sleeve (5).

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