A pin terminal and a connector plug

Abstract

The utility model discloses a kind of pin terminal and a connector plug, pin terminal includes pin part and wire wrapping part, the wire wrapping part includes bottom plate and the plurality of side plates of setting in bottom plate both sides, the pin part adopts solid structure, and the thickness of the pin part is greater than the thickness of bottom plate and side plate.The utility model, by increasing the thickness of pin part, can solve the difficulty that existing pin terminal has no way to wrap wire at the same thickness.In addition, by increasing the thickness of pin part, the pin part adopts solid structure, can increase the functional stability of the insertion face of pin part, improve the conductivity of connector plug.

Description

Technical Field

[0001] This utility model belongs to the field of connectors, and in particular relates to a pin terminal and a connector plug. Background Technology

[0002] Connectors generally consist of an insulating core and conductive terminals. The conductive terminals are further divided into female terminals and male terminals. For male terminals, the pin portion and the wire-wrapping portion are typically made of the same thickness material. Because the wire-wrapping portion requires bending to wrap the wire, its material thickness is usually thinner, resulting in a thinner pin portion and affecting the connection performance. Alternatively, some male terminals use thinner material bent to form a hollow pin portion to increase its thickness. However, hollow structures have lower strength and are prone to deformation during use, leading to poor stability of the pin insertion surface. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pin terminal and a connector plug.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A pin terminal includes a pin portion and a wire wrapping portion. The wire wrapping portion includes a base plate and a plurality of side plates disposed on both sides of the base plate. The pin portion has a solid structure, and the thickness of the pin portion is greater than the thickness of the base plate and the side plates.

[0006] Furthermore, the pin terminal is formed by thinning a portion of a thick metal material, wherein the wire wrapping portion is formed from the thinned portion of the thick metal material, and the pin portion is formed from the unthinned portion of the thick metal material.

[0007] Furthermore, the insert portion is formed by stacking and fixing multiple layers of metal material.

[0008] Furthermore, the thickness of the insert portion is 0.5mm to 1mm; the thickness of the base plate is 0.15mm to 0.3mm.

[0009] Furthermore, the pin portion includes a pin body, a tapered section at the front end of the pin body, and a transition section connecting the pin body and the base plate. The transition section gradually thins from the end connected to the pin body to the end connected to the base plate.

[0010] Furthermore, the base plate includes a first base plate connected to the pin portion, a second base plate connected to the first base plate, and a third base plate connected to the second base plate. A snap-fit ​​piece extending downward at an angle is provided on the bottom surface of the first base plate. The plurality of side plates include two limiting plates formed on both sides of the first base plate, two first pressure plates formed on both sides of the second base plate, and two second pressure plates formed on both sides of the third base plate.

[0011] Furthermore, the first base plate and the second base plate are connected by a first inclined section, and the second base plate and the third base plate are connected by a second inclined section, thereby forming a three-tiered stepped structure in which the first base plate, the second base plate and the third base plate sink sequentially.

[0012] A connector plug includes an insulating core, each having a connecting groove at its front end. The insulating core also has a plurality of terminal holes communicating with the connecting grooves. Each terminal hole has a pin terminal as described in any of the above claims, with the pin portion of the pin terminal extending into the connecting groove.

[0013] Furthermore, the base plate includes a first base plate connected to the pin portion, a second base plate connected to the first base plate, and a third base plate connected to the second base plate. A snap-fit ​​piece extending downward at an angle is provided on the bottom surface of the first base plate. The plurality of side plates include two limiting plates formed on both sides of the first base plate, two first pressure plates formed on both sides of the second base plate, and two second pressure plates formed on both sides of the third base plate.

[0014] The terminal hole includes a terminal slot and a terminal through hole connecting the terminal slot and the connecting slot. The wire portion of the pin terminal is located in the terminal slot, and the pin portion passes through the terminal through hole and extends into the connecting slot. A snap-fit ​​groove is formed at the position of the snap-fit ​​piece in the terminal slot. A stop block is provided on one side of the snap-fit ​​groove. The stop block forms a blocking surface on the side of the snap-fit ​​groove to prevent the snap-fit ​​piece from moving into the slot of the terminal slot.

[0015] Furthermore, a protrusion is formed in the terminal slot at the position corresponding to the two limiting plates, and a limiting groove is formed between the two sides of the protrusion and the corresponding groove wall of the terminal slot, and the two limiting plates are respectively located in the two limiting grooves.

[0016] In this invention, by increasing the thickness of the pin portion and then lowering the second and third base plates sequentially via the first and second inclined sections, the upper surfaces of the first and second wire-pressing plates of the wire-wrapping portion can be substantially flush with the upper surface of the pin portion after pressing the wire. This solves the problem that existing pin terminals cannot wrap wires at the same thickness. Furthermore, by increasing the thickness of the pin portion and adopting a four-way solid structure, the functional stability of the pin's insertion surface is increased, improving the conductivity of the connector plug. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 and Figure 2 This is a schematic diagram of an embodiment of a pin terminal according to the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of an embodiment of a connector plug according to the present invention.

[0020] Figure 4 for Figure 3 Top view.

[0021] Figure 5 for Figure 4 A sectional view along the AA direction.

[0022] Figure 6 This is a schematic diagram of the insulating rubber core.

[0023] Figure 7 This is a cross-sectional view of the insulating rubber core.

[0024] The diagrams in the instruction manual are labeled as follows:

[0025] Pin terminal - 100; Pin part - 110; Pin body - 111; Tapered section - 112; Transition section - 113; Wire wrapping part - 120; First base plate - 121; Second base plate - 122; Third base plate - 123; First inclined section - 124; Second inclined section - 125; Snap-fit ​​piece - 126; Limiting plate - 127; First wire clamping plate - 128; Second wire clamping plate - 129;

[0026] Insulating core-200; Connecting groove-210; Terminal groove-220; Protrusion-221; Terminal through hole-230; Limiting groove-240; Snap-fit ​​through hole-250; Snap-fit ​​groove-251; Connecting part-261; Stop block-262; Stopping surface-263. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. The illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2This is a schematic diagram of a pin terminal according to an embodiment of the present invention. The pin terminal of this embodiment includes a pin portion 110 and a wire-wrapping portion 120. The wire-wrapping portion 120 includes a base plate and multiple side plates disposed on both sides of the base plate. The pin portion 110 has a solid structure, and the thickness of the pin portion 110 is greater than the thickness of the base plate and the side plates.

[0029] In this embodiment, the pin terminal is formed by thinning a portion of a thick metal material. The wire-wrapping portion 120 is formed from the thinned portion of the thick metal material, while the pin portion 110 is formed from the unthinned portion of the thick metal material. That is, a metal material of the required thickness is selected based on the thickness of the pin portion 110, and the area of ​​the thick metal material used to form the wire-wrapping portion 120 is thinned using CNC machining or other processes before being formed into the pin terminal. This ensures that the wire-wrapping portion 120 of the pin terminal in this embodiment has the same thickness as the wire-wrapping portion 120 of existing pin terminals, while the pin portion 110, because it is not thinned, has a much greater thickness than the pin portion 110 of existing pin terminals, forming a four-pointed star shape.

[0030] Of course, the pin terminal can also be formed in other ways. For example, the thicker pin portion 110 in this embodiment can be formed by stacking and fixing multiple layers of metal material on the pin portion 110 of the pin terminal with a conventional structure. Similarly, a thicker pin portion 110 with a solid structure can be obtained. However, the pin portion 110 made by the above method is not a one-piece structure and the process is more complicated.

[0031] By increasing the thickness of the pin portion 110, the difficulty of wrapping wires when the existing pin terminals are of the same thickness can be solved. Furthermore, the solid structure of the pin portion 110 with four directions can increase the functional stability of the insertion surface of the pin portion 110.

[0032] The pin portion 110 includes a pin body 111, a tapered section 112 located at the front end of the pin body 111, and a transition section 113 connecting the pin body 111 and the base plate. The transition section 113 gradually thins from the end connected to the pin body 111 to the end connected to the base plate, thereby realizing the transition from the thicker pin body 111 to the thinner base plate.

[0033] The thickness d1 of the pin portion 110 (i.e., the thickness of the pin body 111) is 0.5mm to 1mm, preferably 0.7mm to 0.8mm; for example, the thickness of the pin portion 110 can be 0.7mm, 0.71mm, 0.72mm, 0.73mm, 0.74mm, 0.75mm, 0.76mm, 0.77mm, 0.78mm, 0.79mm, 0.8mm, etc. The thickness d2 of the base plate is 0.15mm to 0.3mm, preferably 0.15mm to 0.25mm. For example, the thickness of the base plate can be 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, etc. The thickness d1 of the insert portion 110 is generally greater than or equal to three times the thickness d2 of the base plate, and the thickness of the side plate is generally the same as the thickness of the base plate.

[0034] The base plate includes a first base plate 121 connected to the transition section 113 of the pin portion 110, a second base plate 122 connected to the first base plate 121, and a third base plate 123 connected to the second base plate 122. In this embodiment, the first base plate 121 and the second base plate 122 are connected by a first inclined section 124, and the second base plate 122 and the third base plate 123 are connected by a second inclined section 125, thereby forming a three-stage stepped structure in which the first base plate 121, the second base plate 122, and the third base plate 123 sink sequentially. A downwardly extending snap-fit ​​piece 126 is provided on the bottom surface of the first base plate 121. The snap-fit ​​piece 126 is used to snap and fix the pin terminal to prevent the pin terminal from coming out of the terminal hole.

[0035] The plurality of side plates include two limiting plates 127 formed on both sides of the first base plate 121, two first wire pressing plates 128 formed on both sides of the second base plate 122, and two second wire pressing plates 129 formed on both sides of the third base plate 123. The two limiting plates 127 are used to limit the pin terminals to prevent the pin terminals from moving after installation. The two first wire pressing plates 128 and the two second wire pressing plates 129 are used to press the wires to achieve the connection between the wires and the pin terminals.

[0036] In this embodiment, by increasing the thickness of the pin portion 110, and then by using the first inclined section 124 and the second inclined section 125 to sequentially lower the second base plate 122 and the third base plate 123, the upper surfaces of the first pressure plate 128 and the second pressure plate 129 of the wire-wrapping portion 120 after pressing the wire can be substantially flush with the upper surface of the pin portion 110, thus solving the difficulty of existing pin terminals not being able to wrap wire at the same thickness. Furthermore, by increasing the thickness of the pin portion 110, and by adopting a four-way solid structure for the pin portion 110, the functional stability of the insertion surface of the pin portion 110 can be increased.

[0037] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of an embodiment of a connector plug according to the present invention. The connector plug of this embodiment has an insulating core 200, the front end of which has a connecting groove 210. The insulating core 200 also has a plurality of terminal holes communicating with the connecting grooves 210. Each terminal hole is provided with a pin terminal 100 as described in any of the above embodiments, and the pin portion 110 of the pin terminal 100 extends into the connecting groove 210.

[0038] Please see Figure 4 , Figure 5 , Figure 6 and Figure 7 The terminal hole includes a terminal slot 220 and a terminal through hole 230 connecting the terminal slot 220 and the connecting slot 210. The wire portion 120 of the pin terminal 100 is located in the terminal slot 220, and the pin portion 110 passes through the terminal through hole 230 and extends into the connecting slot 210. A snap-fit ​​groove 251 is formed in the terminal slot 220 at the position corresponding to the snap-fit ​​piece 126 to accommodate the tilted snap-fit ​​piece 126. A stop block 262 is provided on one side of the snap-fit ​​groove 251. The stop block 262 forms a blocking surface 263 on the side of the snap-fit ​​groove 251 to prevent the snap-fit ​​piece 126 from moving into the slot of the terminal slot 220, thereby preventing the pin terminal 100 from coming out of the terminal hole after the snap-fit ​​piece 126 extends into the snap-fit ​​groove 251.

[0039] In this embodiment, a through-hole 250 is formed on the side wall of the terminal slot 220 corresponding to the snap-fit ​​piece 126. A connecting part 261 extending into the snap-fit ​​hole 250 is formed on one side wall of the snap-fit ​​hole 250. A stop 262 extending into the terminal slot 220 is provided at the protruding end of the connecting part 261. A snap-fit ​​groove 251 is formed between the blocking surface 263 of the stop 262 and the corresponding side wall of the snap-fit ​​hole 250.

[0040] A protrusion 221 is formed in the terminal slot 220 at the position corresponding to the two limiting plates 127. A limiting groove 240 is formed between the two sides of the protrusion 221 and the corresponding groove wall of the terminal slot 220. The two limiting plates 127 are respectively located in the two limiting grooves 240. Thus, the pin terminal 100 can be better limited by the limiting plates 127 and the protrusion 221 to prevent the pin terminal 100 from moving.

[0041] In this embodiment, by increasing the thickness of the pin portion 110, the difficulty of wrapping wire in existing pin terminals 100 with the same thickness is solved. In addition, by increasing the thickness of the pin portion 110, the pin portion 110 adopts a solid four-way structure, which can increase the functional stability of the insertion surface of the pin portion 110 and improve the conductivity of the connector plug.

[0042] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pin terminal, characterized in that: It includes a pin section and a wire wrapping section. The wire wrapping section includes a base plate and multiple side plates disposed on both sides of the base plate. The pin section adopts a solid structure, and the thickness of the pin section is greater than the thickness of the base plate and the side plates.

2. A pin terminal as described in claim 1, characterized in that: The pin terminal is formed by thinning a portion of a thick metal material. The wire wrapping portion is formed from the thinned portion of the thick metal material, while the pin portion is formed from the unthinned portion of the thick metal material.

3. A pin terminal as described in claim 1, characterized in that: The insert portion is formed by stacking and fixing multiple layers of metal material.

4. A pin terminal as described in claim 1, characterized in that: The thickness of the insert portion is 0.5mm to 1mm; the thickness of the base plate is 0.15mm to 0.3mm.

5. A pin terminal as described in claim 1, characterized in that: The pin portion includes a pin body, a tapered section at the front end of the pin body, and a transition section connecting the pin body and the base plate. The transition section gradually thins from the end connected to the pin body to the end connected to the base plate.

6. A pin terminal as described in any one of claims 1 to 5, characterized in that: The base plate includes a first base plate connected to the pin portion, a second base plate connected to the first base plate, and a third base plate connected to the second base plate. A snap-fit ​​piece extending downward at an angle is provided on the bottom surface of the first base plate. The plurality of side plates include two limiting plates formed on both sides of the first base plate, two first pressure plates formed on both sides of the second base plate, and two second pressure plates formed on both sides of the third base plate.

7. A pin terminal as described in claim 6, characterized in that: The first base plate and the second base plate are connected by a first inclined section, and the second base plate and the third base plate are connected by a second inclined section, so that the first base plate, the second base plate and the third base plate form a three-stage stepped structure that sinks in sequence.

8. A connector plug, characterized in that: The device includes an insulating core, each having a connecting groove at its front end. The insulating core also has a plurality of terminal holes communicating with the connecting grooves. Each terminal hole is provided with a pin terminal as described in any one of claims 1 to 5, and the pin portion of the pin terminal extends into the connecting groove.

9. A connector plug as described in claim 8, characterized in that: The base plate includes a first base plate connected to the pin portion, a second base plate connected to the first base plate, and a third base plate connected to the second base plate. A snap-fit ​​piece extending downward at an angle is provided on the bottom surface of the first base plate. The plurality of side plates include two limiting plates formed on both sides of the first base plate, two first pressure plates formed on both sides of the second base plate, and two second pressure plates formed on both sides of the third base plate. The terminal hole includes a terminal slot and a terminal through hole connecting the terminal slot and the connecting slot. The wire portion of the pin terminal is located in the terminal slot, and the pin portion passes through the terminal through hole and extends into the connecting slot. A snap-fit ​​groove is formed at the position of the snap-fit ​​piece in the terminal slot. A stop block is provided on one side of the snap-fit ​​groove. The stop block forms a blocking surface on the side of the snap-fit ​​groove to prevent the snap-fit ​​piece from moving into the slot of the terminal slot.

10. A connector plug as described in claim 9, characterized in that: A protrusion is formed in the terminal slot at the position between the two limiting plates. A limiting groove is formed between the two sides of the protrusion and the corresponding groove wall of the terminal slot. The two limiting plates are respectively located in the two limiting grooves.

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