Wiring terminal

Abstract

The utility model relates to a wiring terminal, which comprises a terminal body, the terminal body is provided with a cold heading threading hole for crimping a lead, the cold heading threading hole penetrates between the front end face and the rear end face of the terminal body, and a top wall, a first side wall, a bottom wall and a second side wall are respectively formed on the terminal body corresponding to the periphery of the cold heading threading hole. The top wall is provided with a cold heading wiring hole communicated with the cold heading threading hole, an internal thread is arranged in the cold heading wiring hole, and the top wall, the first side wall, the bottom wall and the second side wall are of an integrated structure and form the terminal body. The utility model has the advantages of simple structure, stable and reliable performance, high production efficiency, high strength and low cost.

Description

Technical Field

[0001] The utility model specifically relates to a wiring terminal. Background Art

[0002] The terminal block is used to facilitate the connection of wires. It is actually a piece of metal sheet sealed in insulating plastic. There are holes at both ends for inserting wires and screws for tightening or loosening. For example, two wires sometimes need to be connected and sometimes need to be disconnected. At this time, they can be connected with terminals and can be disconnected at any time without welding them or winding them together. It is very convenient and quick. The terminal block includes a frame and screws set on the frame. For example, the Chinese patent with patent number 201610541383.2 discloses a wiring frame and its manufacturing method. The wiring frame is formed by bending the body. The body uses steel bars as raw materials. The wiring frame terminal is made by wire drawing, cold rolling and flattening, high-frequency annealing, wire drawing, polishing, and single-sided striping. Punch holes on the body, stretch and bend into five bending surfaces, overlap the first bending surface and the fifth bending surface, insert a short tube into the through hole, and rivet the short tube flange in the through hole to make the lap surface integrated. The wiring frame adopts steel stripe flat wire material and riveted structure. The riveted structure can improve the strength of the wiring frame. However, when the wiring frame is subjected to a large torque, the wiring frame is easily deformed and damaged, and the service life is short. In addition, the production process of the wiring frame is relatively complicated and the production cost is high. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a wiring terminal with simple structure, stable and reliable performance, high production efficiency, high strength and low cost.

[0004] To achieve the above-mentioned purpose, the utility model adopts a terminal, including a terminal body, the terminal body has a cold heading threading hole for crimping the wire, the cold heading threading hole runs through the front end face and the rear end face of the terminal body, the terminal body is respectively formed with a top wall, a first side wall, a bottom wall, and a second side wall around the corresponding cold heading threading hole, the top wall has a cold heading wiring hole connected to the cold heading threading hole, the cold heading wiring hole is provided with an internal thread, the top wall, the first side wall, the bottom wall, and the second side wall are an integrated structure and constitute the terminal body.

[0005] The beneficial effect of the above structure is that the terminal body adopts an integrated cold heading process, which not only improves the strength and thread torque of the terminal body, but also enhances the wire crimping strength and crimping area, and improves the current carrying capacity of the contact surface between the wire and the wiring frame and the tensile strength of the wire contact. The terminal body is formed by cold heading process, which has many advantages. The first advantage is that it can produce high-quality metal parts. The cold heading process can process metal without generating heat, and the terminal body will not have defects such as metal deformation or cracks. In addition, due to the lack of high temperature, the cold heading process can keep the metal material at its original strength and hardness. Compared with the terminal with traditional bending forming structure design, the terminal with cold heading forming structure design has higher strength. Another advantage is that the cold heading process can greatly reduce production costs. Since the cold heading process does not require heating, it can save a lot of energy and human resources. In addition, the cold heading process can complete mass production in a very short time, thereby improving production efficiency. Therefore, the terminal has the advantages of simple structure, stable and reliable performance, high production efficiency, high strength and low cost.

[0006] In particular, the thickness of the top wall is greater than the thickness of the first side wall, the bottom wall, and the second side wall. Increasing the thickness of the top wall can effectively enhance the thread torque of the top wall, thereby facilitating the extension of the service life of the terminal.

[0007] In particular, one side of the bottom wall has a vertically bent limiting piece, one end of which extends outward from the bottom wall, and the limiting piece and the bottom wall are an integrated structure. The limiting piece can play a limiting role, and the terminal is not easy to shake at will, which is conducive to improving the assembly efficiency of the terminal in the electrical product.

[0008] In particular, the top wall, the first side wall, the bottom wall and the second side wall of the terminal body are respectively provided with guiding inclined surfaces matching the cold heading threading holes. The guiding inclined surfaces can guide the wires, and the wires can be inserted into the cold heading threading holes along the guiding inclined surfaces, making wiring more convenient.

[0009] In particular, the four corners of the cold-forged threading hole are all rounded. The four corners of the cold-forged threading hole are rounded, which can reduce stress concentration, prevent the terminal body from breaking, and is conducive to enhancing the overall strength of the terminal.

[0010] In particular, the outer wall of the terminal body has round chamfers corresponding to the top wall and the first side plate, the first side wall and the bottom wall, the bottom wall and the second side wall, and the second side wall and the top wall. The outer wall of the terminal body is provided with round chamfers, which can reduce stress concentration, prevent the terminal body from breaking, and ensure that the surface of the terminal body is smoother, which facilitates the assembly difficulty of the terminal in the electrical product and improves the precision of the electrical product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of the first embodiment of the utility model.

[0012] Figure 2 This is a perspective view of the second embodiment of the utility model. DETAILED DESCRIPTION

[0013] like Figure 1 As shown, the embodiment of the utility model is a terminal block, comprising a terminal body 10, the terminal body 10 having a cold heading threading hole 100 for crimping a wire, the cold heading threading hole 100 penetrating between the front end face and the rear end face of the terminal body 10, the terminal body 10 having a top wall 101, a first side wall 102, a bottom wall 103, and a second side wall 104 respectively formed around the cold heading threading hole 100, the top wall 101 having a cold heading wiring hole 105 connected to the cold heading threading hole 100, the cold heading wiring hole 105 having an internal thread, the top wall 101, the first side wall 102, the bottom wall 103, and the second side wall 104 being an integral structure and constituting the terminal body 10. The thickness of the top wall 101 is greater than the thickness of the first side wall 102, the bottom wall 103, and the second side wall 104. Increasing the thickness of the top wall can effectively enhance the thread torque of the top wall, which is beneficial to extend the service life of the terminal. The top wall 101, the first side wall 102, the bottom wall 103, and the second side wall 104 of the terminal body 10 are respectively provided with guide bevels 106 that match the cold heading threading hole 100. The guide bevel can guide the wire, and the wire can be inserted into the cold heading threading hole along the guide bevel, making wiring more convenient. The four corners of the cold heading threading hole 100 are all rounded 107. The four corners of the cold heading threading hole are designed with rounded corners, which can reduce stress concentration, prevent the terminal body from breaking, and help enhance the overall strength of the terminal. The outer wall of the terminal body 10 has rounded chamfers 108 corresponding to the top wall 101 and the first side plate 102, the first side wall 102 and the bottom wall 103, the bottom wall 103 and the second side wall 104, and the second side wall 104 and the top wall 101. The outer wall of the terminal body is provided with a round chamfer, which can reduce stress concentration, prevent the terminal body from breaking, and ensure that the surface of the terminal body is smoother, which facilitates the assembly difficulty of the terminal in the electrical product and improves the precision of the electrical product.

[0014] like Figure 2 As shown, the second embodiment of the utility model is a terminal block, and the second embodiment is different from the first embodiment in that: a vertically bent limit piece 109 is provided on one side of the bottom wall 103, and one end of the limit piece 109 extends outward from the bottom wall 103, and the limit piece and the bottom wall are an integrated structure. The limit piece can play a limiting role, and the terminal block is not easy to shake at will, which is conducive to improving the assembly efficiency of the terminal block in the electrical product.

[0015] The terminal body adopts an integrated cold heading process, which not only improves the strength and thread torque of the terminal body, but also enhances the crimping strength and crimping area of ​​the wire, improves the current carrying capacity of the contact surface between the wire and the wiring frame and the tensile strength of the wire contact. The terminal body is formed by cold heading process, which has many advantages. The first advantage is that it can produce high-quality metal parts. The cold heading process can process metal without generating heat, and the terminal body will not have defects such as metal deformation or cracks. In addition, due to the lack of high temperature, the cold heading process can keep the metal material at its original strength and hardness. Compared with the terminal with traditional bending forming structure design, the terminal with cold heading forming structure design has higher strength. Another advantage is that the cold heading process can greatly reduce production costs. Since the cold heading process does not require heating, it can save a lot of energy and human resources. In addition, the cold heading process can complete mass production in a very short time, thereby improving production efficiency. Therefore, the terminal has the advantages of simple structure, stable and reliable performance, high production efficiency and high strength.

Claims

1. A terminal block, characterized in that: It includes a terminal body, which has a cold-forged threading hole for crimping the wire, the cold-forged threading hole passes through the front end face and the rear end face of the terminal body, and the terminal body is respectively formed with a top wall, a first side wall, a bottom wall, and a second side wall around the cold-forged threading hole. The top wall has a cold-forged wiring hole connected to the cold-forged threading hole, and the cold-forged wiring hole is provided with an internal thread. The top wall, the first side wall, the bottom wall, and the second side wall are an integrated structure and constitute the terminal body.

2. The terminal block according to claim 1, characterized in that: The thickness of the top wall is greater than the thickness of the first side wall, the bottom wall and the second side wall.

3. The terminal block according to claim 1 or 2, characterized in that: One side of the bottom wall is provided with a vertically bent limiting piece, one end of which extends toward the outside of the bottom wall, and the limiting piece and the bottom wall are an integrated structure.

4. The terminal block according to claim 1 or 2, characterized in that: The top wall, the first side wall, the bottom wall and the second side wall of the terminal body are respectively provided with guiding inclined surfaces matching with the cold heading threading holes.

5. The connecting terminal according to claim 1 or 2, characterized in that: The four corners of the cold heading threading hole are all rounded.

6. The connecting terminal according to claim 1 or 2, characterized in that: The outer wall of the terminal body has round chamfers respectively between the top wall and the first side plate, between the first side wall and the bottom wall, between the bottom wall and the second side wall, and between the second side wall and the top wall.

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