An integrally molded terminal structure

Abstract

The utility model relates to terminal connector technical field, and disclose an integrative terminal structure, including terminal insulating body, pin, contact piece, the terminal insulating body, pin, contact piece pass through injection integrative forming, the outer ring of terminal insulating body is provided with the shell, the front position of the top of terminal insulating body is provided with the card slot no.

Description

Technical Field

[0001] This utility model relates to the field of terminal connector technology, specifically to an integrally formed terminal structure. Background Technology

[0002] Terminals are connection points in electronic and electrical equipment used to connect and secure wires or other conductors. They typically consist of pins, contacts, and insulation. Pins are elongated metal parts that are inserted into connector sockets or connected to pads on a circuit board. Contacts are metal pieces that make direct contact with other connector components, possessing good elasticity and conductivity to ensure a good electrical connection. Insulation is usually made of insulating plastic and is used to isolate different conductive parts and prevent short circuits.

[0003] In existing terminals, the insulating shell and contact piece are usually manufactured separately and then assembled later. During assembly, slots and soldering points need to be left on the shell. After assembly, the pins and connectors are fixed by soldering or other methods. However, the fit between the terminal and the insulating shell is low before soldering. After long-term insertion and removal, the terminal and the insulating body are prone to poor contact due to weak soldering or loose pin 3. In addition, the processing efficiency of assembling the terminal and the shell is low. Utility Model Content

[0004] The purpose of this invention is to provide an integrally molded terminal structure that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An integrally molded terminal structure includes a terminal insulating body, pins, and contact pieces, wherein the terminal insulating body, pins, and contact pieces are integrally molded by injection molding, and a shell is provided on the outer ring of the terminal insulating body;

[0007] The terminal insulating body has a second slot at the front of its top end that matches the shape of the contact piece, and a first slot at the top of its top end that matches the shape of the pin. The terminal insulating body has an anti-detachment groove at the center of its interior that matches the pin and the second connecting piece. The anti-detachment groove is composed of a stop block and a protrusion. The rear end of the pin is connected to the first connecting piece, and the rear end of the contact piece is connected to the second connecting piece. The first connecting piece and the second connecting piece are embedded in the terminal insulating body.

[0008] Preferably, a fixing groove is provided at the connection between the first connecting piece and the terminal insulation body, and a fixing groove is provided at the connection between the second connecting piece and the terminal insulation body.

[0009] Preferably, the ends of the first connecting piece and the second connecting piece away from the terminal insulation body are connected to a PCB board, and a bending section is provided at the connection between the first connecting piece and the PCB board.

[0010] Preferably, the first connecting piece and the second connecting piece are staggered and form two layers, and the pins do not contact the second connecting piece.

[0011] Preferably, the stop block and the protrusion are respectively attached to the pin and the connecting piece 2, and the attachment point between the stop block and the pin and the connecting piece 2 is provided with anti-slip teeth.

[0012] Preferably, the outer ring of the terminal insulating body is provided with solder joints that are compatible with the outer shell, and the outer shell is fixedly installed on the outer ring of the terminal insulating body by welding.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model simplifies the production process and improves production efficiency by setting up a shell, terminal insulation body, pins, and contact pieces that work together in an integrated injection molding process. Furthermore, the injection molding method ensures that the pins, contact pieces, and terminal insulation body are tightly connected, avoiding poor contact caused by weak welding or loose pins.

[0015] By setting fixed groove 2, fixed groove 1, slot 1, and slot 2 in conjunction with connecting piece 1 and connecting piece 2, the pins and connecting piece 2 can be reinforced during molding, further reducing the probability of loosening or shifting during insertion and removal. It can also enhance the fixing effect of the terminal within the terminal insulation body, reducing the probability of the pins or contact pieces becoming loose due to vibration or external force. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an integrally formed terminal structure according to an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the structure of slot 1, slot 2, pins, and contact pieces in the embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the terminal insulation body, pin, and connecting piece 2 in the embodiment of this utility model.

[0019] In the diagram: 1. Terminal insulation body; 2. Outer shell; 3. Pin; 4. Connecting piece 1; 5. Slot 1; 6. Fixing slot 1; 7. Contact piece; 8. Connecting piece 2; 9. Slot 2; 10. Fixing slot 2; 11. Anti-detachment groove; 12. PCB board. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Combination Figures 1-3 An integrally molded terminal structure includes a terminal insulating body 1, pins 3, and contact pieces 7. The terminal insulating body 1, pins 3, and contact pieces 7 are integrally molded by injection molding. The outer ring of the terminal insulating body 1 is provided with a shell 2.

[0023] See Figure 2 and Figure 3 Furthermore, the terminal insulating body 1 has a slot 2 9 at the front of its top end that is compatible with the contact piece 7, a slot 1 5 at the top of its top end that is compatible with the pin 3, and an anti-detachment groove 11 at the center of the interior of the terminal insulating body 1 that is compatible with the pin 3 and the connecting piece 2 8. The anti-detachment groove 11 is composed of a stop block and a protrusion. The rear end of the pin 3 is connected to a connecting piece 1 4, and the rear end of the contact piece 7 is connected to a connecting piece 2 8. The connecting piece 1 4 and the connecting piece 2 8 are embedded in the terminal insulating body 1.

[0024] Specifically, the terminal insulation body 1, pins 3, and contact pieces 7 are formed by injection molding. Since pins 3 and contact pieces 7 are pre-positioned in the mold cavity before the mold is closed, this ensures they are in the correct position during injection molding. When the molten plastic is injected into the mold cavity, the melt can completely fill the cavity and wrap around the contact pieces 7 and pins 3. During injection molding, the molten plastic can tightly wrap around the contact pieces 7 and pins 3, forming a good insulating layer to enhance the overall insulation performance and prevent electrical short circuits. At the same time, there is no need for step-by-step assembly, so that the contact pieces 7 and pins 3 are firmly fixed in the terminal insulation body 1, avoiding poor contact caused by weak welding or loose pins 3, and improving production efficiency.

[0025] Example 2

[0026] See Figure 2Furthermore, based on Embodiment 1, a fixing groove 6 is provided at the connection between the connecting piece 1 4 and the terminal insulating body 1, and a fixing groove 10 is provided at the connection between the connecting piece 2 8 and the terminal insulating body 1. A PCB board 12 is connected to the end of the connecting piece 1 4 and the connecting piece 2 8 away from the terminal insulating body 1, and a bending section is provided at the connection between the connecting piece 1 4 and the PCB board 12. The connecting piece 1 4 and the connecting piece 2 8 are staggered and form two layers. The pin 3 and the connecting piece 2 8 do not contact each other. The stop block and the protrusion are respectively attached to the pin 3 and the connecting piece 2 8. Anti-slip teeth are provided at the attachment point of the stop block and the pin 3 and the connecting piece 2 8. The outer ring of the terminal insulating body 1 is provided with solder points that are compatible with the outer shell 2. The outer shell 2 is fixedly installed on the outer ring of the terminal insulating body 1 by welding.

[0027] Specifically, after injection molding, connecting piece 2 8 and connecting piece 1 4 are respectively locked in fixing groove 2 10 and fixing groove 1 6 to reinforce connecting piece 1 4 and connecting piece 2 8, reducing the probability of them loosening or shifting during insertion and removal. In addition, the anti-disengagement groove 11 is provided with a stop block and a protrusion, which can enhance the molding stability of pin 3 and contact piece 7, reduce the probability of pin 3 or contact piece 7 loosening due to vibration or external force, so as to withstand greater insertion and removal force.

[0028] In actual operation, the terminal insulation body 1, pin 3, and contact piece 7 are formed by injection molding. Since the pin 3 and contact piece 7 are pre-placed in the designated position in the mold cavity before the mold is closed, it is ensured that they are in the correct position during the injection molding process. When the plastic melt is injected into the mold cavity, the melt can completely fill the cavity and wrap the contact piece 7 and pin 3.

[0029] Furthermore, during injection molding, the molten plastic can tightly wrap the contact piece 7 and the pin 3 to form a good insulating layer, thereby enhancing the overall insulation performance and preventing electrical short circuits. At the same time, there is no need for step-by-step assembly, so that the contact piece 7 and the pin 3 can be firmly fixed in the terminal insulation body 1, avoiding poor contact caused by weak welding or loose pin 3, and improving production efficiency.

[0030] After injection molding, connecting piece 2 8 and connecting piece 1 4 are respectively locked in fixing groove 2 10 and fixing groove 1 6 to reinforce connecting piece 1 4 and connecting piece 2 8, reducing the probability of them loosening or shifting during insertion and removal. In addition, the anti-disengagement groove 11 is provided with a stop block and a protrusion, which can enhance the molding stability of pin 3 and contact piece 7, reduce the probability of pin 3 or contact piece 7 loosening due to vibration or external force, so as to withstand greater insertion and removal force.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A one-piece molded terminal structure, characterized in that: It includes a terminal insulating body (1), pins (3), and contact pieces (7). The terminal insulating body (1), pins (3), and contact pieces (7) are integrally formed by injection molding. The outer ring of the terminal insulating body (1) is provided with a shell (2). The terminal insulating body (1) has a slot 2 (9) at the front of its top end that is compatible with the contact piece (7). The terminal insulating body (1) has a slot 1 (5) at its top end that is compatible with the pin (3). The terminal insulating body (1) has an anti-detachment groove (11) at the center of its interior that is compatible with the pin (3) and the connecting piece 2 (8). The anti-detachment groove (11) is composed of a stop block and a protrusion. The rear end of the pin (3) is connected to a connecting piece 1 (4). The rear end of the contact piece (7) is connected to a connecting piece 2 (8). The connecting piece 1 (4) and the connecting piece 2 (8) are embedded in the terminal insulating body (1).

2. The integrally molded terminal structure according to claim 1, characterized in that: A fixing groove 1 (6) is provided at the connection between the connecting piece 1 (4) and the terminal insulating body (1), and a fixing groove 2 (10) is provided at the connection between the connecting piece 2 (8) and the terminal insulating body (1).

3. The integrally molded terminal structure according to claim 2, characterized in that: The first connecting piece (4) and the second connecting piece (8) are connected to a PCB board (12) at the ends away from the terminal insulating body (1), and a bending section is provided at the connection between the first connecting piece (4) and the PCB board (12).

4. The integrally molded terminal structure according to claim 3, characterized in that: The first connecting piece (4) and the second connecting piece (8) are staggered and form two layers, and the pin (3) and the second connecting piece (8) do not contact each other.

5. The integrally molded terminal structure according to claim 1, characterized in that: The stop block and the protrusion are respectively attached to the pin (3) and the connecting piece 2 (8), and anti-slip teeth are provided at the attachment points of the stop block with the pin (3) and the connecting piece 2 (8).

6. The integrally molded terminal structure according to claim 1, characterized in that: The outer ring of the terminal insulating body (1) is provided with solder joints that are compatible with the outer shell (2), and the outer shell (2) is fixedly installed on the outer ring of the terminal insulating body (1) by welding.

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