Connector structure

Abstract

The utility model discloses a joint structure, which can be inserted into a PCB (printed circuit board) after a connector is specially designed, thereby replacing the traditional soldering technology. The connector comprises a body (1) and a terminal group (2) arranged in the body (1), the front end of the body (1) is provided with a cavity (11), and the part of the terminal group (2) arranged in the cavity (11) is provided with an inverted buckle structure (3); the cavity (11) is used for accommodating a PCB (Printed Circuit Board); the inverted buckle structures (3) are inverted buckles or barbs; the body (1) is made of an insulating material. According to the utility model, the PCB is inserted into the cavity of the plastic body, so that the inverted buckles or the barbs on the terminals clamp the PCB, the insertion depth just enables the bonding pads of the PCB to be in contact with the inverted buckles or the barbs on the terminals to form electric connection, and the size of the cavity is slightly larger than that of the PCB, so that the PCB is clamped by the cavity and cannot shake up and down and left and right. The utility model has the advantages of simple production process, low cost and high production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a joint structure. Background Art

[0002] The connector is one of the important components for connecting a mobile terminal to a computer or charger, and different products require different connector specifications. Common connectors currently on the market include TYPE-C connectors, USB connectors, etc. These existing connector structures all use a plastic body with terminals embedded in it, a shell provided on the outside, and the PCB board and the terminals are fixed by welding. The general production process is: 1. The terminals are installed in the plastic body, 2. The shell is assembled, 3. The PCB board is made, and 4. The PCB board and the terminals are welded together. However, this existing connector structure has the following shortcomings: complex production process, high cost, and low production efficiency. Utility Model Content

[0003] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a joint structure.

[0004] In order to solve the above technical problems, the utility model provides a connector structure, which includes a body and a terminal group arranged in the body, a cavity is provided at the front end of the body, and the terminal group part placed in the cavity is provided with an inverted structure.

[0005] A further improvement of the present invention is that the cavity can be of regular or irregular shape.

[0006] A further improvement of the present invention is that the cavity is used to accommodate a PCB board.

[0007] A further improvement of the present invention is that the cavity is rectangular.

[0008] A further improvement of the present invention is that the undercut structure is an undercut or a barb.

[0009] A further improvement of the present invention is that the body is made of insulating material.

[0010] A further improvement of the present invention is that the body is made of plastic.

[0011] A further improvement of the present invention is that a space for avoiding space is provided on the cavity.

[0012] A further improvement of the present invention is that the number of terminals in the terminal group is 4 to 16.

[0013] A further improvement of the present invention is that the terminal group has 9 terminals.

[0014] Compared with the prior art, the present invention offers the following advantages: the PCB is inserted into the cavity of the plastic body, allowing the undercuts or barbs on the terminals to secure the PCB. The insertion depth is just enough for the pads on the PCB to contact the undercuts or barbs on the terminals, forming an electrical connection. Because the cavity is slightly larger than the PCB, the PCB is secured in the cavity, preventing it from moving up or down or left or right. This invention offers a simple production process, low cost, and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional unfolded structure of this book.

[0017] The names of the components in the figure are as follows:

[0018] 1—Ontology;

[0019] 11—cavity;

[0020] 2—terminal group;

[0021] 3—Inverted structure;

[0022] 4—housing;

[0023] 5—PCB circuit board. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1-2 As shown, a connector structure includes a body 1 and a terminal group 2 arranged in the body 1. A cavity 11 is provided at the front end of the body 1, and the terminal group 2 portion placed in the cavity 11 is provided with an undercut structure 3. The cavity 11 is a blind hole.

[0026] like Figure 1-2 As shown, the cavity 11 can be regular or irregular in shape. The cavity 11 is rectangular. The cavity 11 is used to accommodate the PCB circuit board 5. The undercut structure 3 is an undercut or barb. The body 1 is made of an insulating material, specifically plastic. The cavity 11 is also provided with an escape area.

[0027] like Figure 1-2As shown, the number of terminals of the terminal group 2 is 4 to 16, specifically, the number of terminals of the terminal group 2 is 9. A shell 4 is provided on the outside of the main body 1, and the shell 4 is made of metal material. The size of the cavity 11 is slightly larger than the size of the PCB board 5. The undercuts or barbs 3 on the terminal group 2 contact the pads on the PCB circuit board 5 to form an electrical connection. The terminal group 2 clamps the PCB board 5 through the undercuts or barbs. The terminal group 2 and the main body 1 are integrally injection molded. The mouth of the cavity 11 is provided with a chamfer to facilitate the insertion of the PCB board 5.

[0028] The existing manufacturing process for Type-C or USB connectors is as follows: 1. Install the terminals into the plastic body, 2. Assemble the housing, 3. Fabricate the PCB, and 4. Solder the PCB to the terminals. The connector structure of the present invention simplifies the manufacturing process to: 1. Install the terminals into the plastic body, 2. Assemble the housing, 3. Fabricate the PCB, and 4. Insert the PCB into the plastic body cavity 11, securing the PCB with the undercuts or barbs on the terminals to a depth sufficient to allow the PCB's solder pads to contact the undercuts or barbs 3 on the terminal assembly 2, forming an electrical connection. This completes the assembly.

[0029] Currently, a technical challenge in the field of connector technology persists: further reducing production costs and simplifying the production process, a technical challenge that has long been sought but has remained unsolved. The present utility model addresses this technical challenge by eliminating the traditional soldering process and instead inserting the PCB directly into the plastic body cavity 11, where the undercuts or barbs on the terminals secure the PCB.

[0030] Currently, there is a technical bias in the field of connector technology: PCBs and terminals are always connected by welding, with no other method being used. The present utility model addresses this technical bias by changing the connection method between the PCB and the terminals from welding to a snap-on connection. The PCB is directly inserted into the cavity 11 of the plastic body, where the undercuts or barbs on the terminals secure the PCB. The solder pads on the PCB contact the undercuts or barbs 3 on the terminal assembly to form an electrical connection.

[0031] The present invention achieves unexpected technical effects. Compared with the prior art, the present invention significantly changes the production process, production cost, and production efficiency. The production process is greatly simplified, eliminating four steps in the soldering process. Only the PCB board needs to be directly inserted into the plastic body cavity 11, achieving fully automated production. Production costs are significantly reduced by eliminating the soldering process steps of applying solder paste, soldering, oven baking, and cooling, saving a large amount of electricity and energy. The production cost can be reduced to approximately 20% of the prior art. Production efficiency is significantly improved by reducing the number of production steps. Only one step is required: directly inserting the PCB board into the plastic body cavity 11. Fully automated production can be achieved, and production efficiency can be increased by at least 5 times. The significant quantitative changes in the production process, production cost, and production efficiency are beyond people's imagination and cannot be predicted or inferred in advance by those skilled in the art.

[0032] Working principle: Insert the PCB into the plastic body cavity 11 so that the undercuts or barbs on the terminals hold the PCB in place. The solder pads on the PCB contact the undercuts or barbs 3 on the terminal assembly to form an electrical connection. Because the cavity 11 is slightly larger than the PCB, the PCB is held in place and cannot move up or down or left or right.

[0033] The beneficial effect of the present invention lies in that the PCB is inserted into the cavity 11 of the plastic body so that the undercuts or barbs on the terminals secure the PCB. The pads of the PCB contact the undercuts or barbs 3 on the terminal assembly to form an electrical connection. Because the cavity 11 is slightly larger than the PCB, the PCB is secured in the cavity 11 and cannot move up or down or left or right. The present invention has a simple production process, low cost, and high production efficiency.

[0034] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A joint structure, characterized in that: It comprises a body (1) and a terminal group (2) arranged in the body (1); a cavity (11) is provided at the front end of the body (1); and a portion of the terminal group (2) arranged in the cavity (11) is provided with an undercut structure (3).

2. A joint structure according to claim 1, characterized in that: The cavity (11) may be of regular or irregular shape.

3. A joint structure according to claim 1, characterized in that: The cavity (11) is used to accommodate a PCB circuit board.

4. A joint structure according to claim 2, characterized in that: The cavity (11) is rectangular.

5. A joint structure according to claim 1, characterized in that: The undercut structure (3) is an undercut or a barb.

6. A joint structure according to claim 1, characterized in that: The body (1) is made of insulating material.

7. A joint structure according to claim 6, characterized in that: The body (1) is made of plastic.

8. The joint structure according to claim 1, characterized in that: The cavity (11) is also provided with an escape space.

9. The joint structure according to claim 1, characterized in that: The number of terminals in the terminal group (2) is 4 to 16.

10. The joint structure according to claim 1, characterized in that: The terminal group (2) has 9 terminals.

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