Connecting line crimping pin structure

Abstract

The utility model provides a connecting line crimping contact pin structure, the connecting line crimping contact pin structure comprises a connecting material belt and a plurality of crimping contact pins, the connecting material belt and the crimping contact pins are integrally formed through punching, the connecting material belt is provided with a positioning through hole, one side surface of the connecting material belt is convexly provided with a positioning bulge, and the positioning bulge is used for limiting the connecting material belt; the plurality of crimping contact pins are arranged at the extending end part in the width direction of the connecting material belt at intervals, each crimping contact pin is provided with a line connecting groove, one end, adjacent to the connecting material belt, of each crimping contact pin is provided with an inclined plane cutting groove, and the connecting material belt is convexly provided with an inclined plane supporting block which is adaptively embedded into the inclined plane cutting groove. The positioning through holes and the positioning protrusions on the connecting material belt are subjected to dual positioning in installed crimping equipment, so that the installation positions of the multiple crimping contact pins on the connecting material belt are accurate; and the connecting material belt is bent towards one side deviating from the inclined plane cutting groove, so that the crimping contact pins are quickly disconnected from the connecting material belt, and the production efficiency of connection of the plurality of crimping contact pins and the connecting wire is improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of automotive wiring harnesses, and in particular to a wiring harness crimping pin structure. Background Technology

[0002] Automotive wiring harnesses consist of connector terminals and connector wires. The connector terminals contain pins for insertion. The pins and connector wires are crimped together using a crimping machine to form an electrical connection. During the crimping process, the pins and a strip are first stamped and formed. Then, multiple crimping pins are connected to the strip. The strip is positioned on the crimping machine through positioning holes, fixing the position of the crimping pins. Before crimping, the crimping pins are separated from the strip and then crimped. Finally, multiple crimping pins are installed and crimped together in the crimping machine.

[0003] When the tape is loose in the crimping equipment or the positioning holes are misaligned, the positions of multiple pins on the tape are prone to deviation, resulting in poor consistency when crimping the pins with the connecting wires. Furthermore, separating multiple pins from the tape is inconvenient, thus affecting the production efficiency of crimping the pins with the connecting wires.

[0004] For example, prior art document CN202122380840.3 discloses a pin-type spring terminal and terminal strip assembly, including a terminal body. The terminal body has a connecting portion and a fixing portion arranged sequentially along its extension direction. The connecting portion has an upper groove at its upper end, and a first connecting buckle and a second connecting buckle are arranged sequentially at the upper groove, both extending upwards towards the terminal body. The fixing portion has a spring and a pin arranged sequentially, with a lower groove at the lower end of the pin. The upper end of the fixing portion has an inclined spring extending towards the connecting portion. A terminal strip assembly where the connecting portion connects to the strip is also disclosed. In this solution, when the strip fixing deviates, the crimping consistency between the pin and the connecting wire is poor, and separation of the terminal and the pin is inconvenient. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a connection wire crimping pin structure that provides accurate installation position of the crimping pin and improves crimping production efficiency.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A connecting wire crimping pin structure includes an integrally stamped connecting strip and a crimping pin. The connecting strip has a positioning through hole for engaging with a protrusion of a crimping device. A positioning protrusion is provided on one side of the connecting strip for limiting the position of the connecting strip.

[0008] The number of crimping pins is multiple, and the multiple crimping pins are spaced apart at the extended ends of the connecting strip in the width direction. Each crimping pin has a circuit connection groove and a beveled cutting groove at one end of each crimping pin adjacent to the connecting strip. The connecting strip has a beveled support block protruding from it, and the beveled support block is adapted to be embedded in the corresponding beveled cutting groove.

[0009] In one embodiment, the positioning protrusion is positioned corresponding to the connection position of the crimping pin, and the end of the connecting strip opposite to the positioning protrusion is also provided with a positioning groove.

[0010] In one embodiment, there are multiple positioning protrusions and positioning through holes, and the positioning protrusions and positioning through holes are arranged alternately in sequence, with each positioning groove disposed between two adjacent positioning through holes.

[0011] In one embodiment, the crimping pin includes an integrally formed crimping member and a plug member. One end of the plug member is connected to the extended end of the connecting strip in the width direction. The plug member has a receiving groove, and the crimping member has a pressing groove. The receiving groove and the pressing groove together form the circuit connection groove. The two opposite side walls of the middle part of the crimping member are respectively provided with a first crimping piece and a second crimping piece. The first crimping piece and the second crimping piece are used to press and fix the connecting wire.

[0012] In one embodiment, the crimping member has a first irregular crimping piece and a second irregular crimping piece protruding from one end adjacent to the connecting strip. The first irregular crimping piece and the second irregular crimping piece are offset from each other on opposite side walls of the crimping member. The first irregular crimping piece and the second irregular crimping piece are used to fix the connecting wire.

[0013] In one embodiment, the extended end of the first irregularly shaped press sheet is provided with a first undercut, and the extended end of the second irregularly shaped press sheet is provided with a second undercut.

[0014] In one embodiment, the end of the crimping member opposite to the connecting strip is formed with a conical groove, which is connected to the receiving groove and the pressing groove respectively.

[0015] In one embodiment, the crimping member has a first through hole at one end adjacent to the connecting strip, and the first through hole communicates with the crimping groove.

[0016] In one embodiment, the connector includes a pin portion and a mounting portion integrally connected, the receiving groove being formed within the pin portion and the mounting portion, and the radius of the pin portion being smaller than the radius of the mounting portion.

[0017] In one embodiment, the mounting portion is further provided with a second through hole, which communicates with the receiving groove.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] The aforementioned connecting wire crimping pin structure utilizes both positioning through holes and protrusions on the connecting strip for dual positioning within the crimping equipment. This improves the positioning accuracy of the connecting strip, ensuring its fixed position during production. This accurate positioning of the multiple crimping pins on the connecting strip results in good consistency after crimping with the connecting wires, leading to a high-quality connection. The inclined support block supports the plane of the crimping pins, reducing breakage during movement and enhancing the connection strength between the pins and the connecting strip. After crimping the pins with their corresponding connecting wires, the connecting strip is bent away from the inclined cutting groove, allowing for quick disconnection. This facilitates easy separation of the pins and the connecting strip, improving production efficiency for connecting multiple crimping pins with connecting wires. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a connecting wire crimping pin structure according to one embodiment;

[0022] Figure 2 for Figure 1 Another schematic diagram of the connecting wire crimping pin structure shown;

[0023] Figure 3 for Figure 1 Another schematic diagram of the connecting wire crimped pin structure shown;

[0024] Figure 4 for Figure 1 The diagram shows a partial structural schematic of the connecting wire crimping pin structure. Detailed Implementation

[0025] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0029] Please see Figures 1 to 4 As shown, it is a connecting wire crimping pin structure 10 according to an embodiment of the present disclosure, including an integrally stamped connecting strip 100 and a crimping pin 200. The connecting strip 100 has a positioning through hole 101, and a positioning protrusion 110 is provided on one side of the connecting strip 100. The positioning protrusion 110 is used to limit the connecting strip 100.

[0030] Furthermore, there are multiple crimping pins 200, which are spaced apart at the extended ends of the connecting strip 100 in the width direction. Each crimping pin 200 has a line connection groove 201, and each crimping pin 200 has a beveled cutting groove 202 at one end adjacent to the connecting strip 100. The connecting strip 100 has a protruding beveled support block 120, which is adapted to be embedded in the corresponding beveled cutting groove 202.

[0031] In this embodiment, the connecting wire crimping pin structure 10 is installed in a crimping device for crimping operations. The positioning through hole 101 can be used to engage with the protrusion of the crimping device to initially position the connecting strip 100. Then, the positioning protrusion 110 and the fixing groove opened in the crimping device further limit the connecting strip 100, so that the connecting strip 100 is doubly positioned by the crimping device, thereby accurately fixing the position of the connecting strip 100. This fixes the positions of the multiple parallel and spaced crimping pins 200 on the connecting strip 100, thus ensuring the connection... The wire and the crimping pin 200 are tightly and stably crimped together. The crimping pin 200 has a beveled cutting groove 202. When the crimping pin 200 is bent away from the beveled cutting groove 202, the crimping pin 200 is disconnected from the connecting strip 100. When the crimping pin 200 is bent toward the beveled cutting groove 202, the beveled cutting groove 202 cooperates with the beveled support block 120. The beveled support block 120 supports and abuts the plane of the crimping pin, preventing the crimping pin 200 from breaking due to slight collisions during movement.

[0032] The aforementioned connecting wire crimping pin structure 10, through the positioning through-hole 101 and positioning protrusion 110 on the connecting strip 100, achieves dual positioning in the installed crimping equipment, improving the positioning accuracy of the connecting strip 100 and ensuring that the position of the connecting strip 100 is fixed during production. This ensures accurate installation of the multiple crimping pins 200 on the connecting strip 100, resulting in good consistency after the multiple crimping pins 200 are crimped with the connecting wires, and high connection quality between the crimping pins 200 and the connecting wires; the inclined support block 120 provides support. The flat surface of the crimping pin 200 is abutted to reduce the breakage problem of the crimping pin 200 during movement, and enhance the connection between the crimping pin 200 and the connecting strip 100. Multiple crimping pins 200 are crimped with corresponding connecting wires, and then the connecting strip 100 is bent toward the side away from the inclined cutting groove 202, so that the crimping pin 200 and the connecting strip 100 are quickly disconnected, thereby making it easy to separate the crimping pin 200 and the connecting strip 100, and thus improving the production efficiency of connecting multiple crimping pins 200 with connecting wires.

[0033] like Figure 1 and Figure 2As shown, in one embodiment, the positioning protrusion 110 is correspondingly positioned to connect with the crimping pin 200, and a positioning groove 102 is correspondingly formed on the end of the connecting strip 100 away from the positioning protrusion 110. In this embodiment, the positioning protrusion 110 can quickly and accurately determine the position of the connecting part of the crimping pin 200, thereby guiding the installation of the crimping pin 200 and reducing the positional deviation of the crimping pin 200 during installation; the positioning groove 102 and the positioning protrusion 110 form a bidirectional positioning structure on both sides of the connecting strip 100. The bidirectional positioning can more accurately limit the position of the connecting strip 100, reduce the influence of external forces on the connecting strip 100, and thus improve the positioning accuracy and reliability of the crimping pin 200 on the connecting material.

[0034] like Figure 1 As shown, in one embodiment, there are multiple positioning protrusions 110 and positioning through holes 101, which are alternately arranged sequentially. Each positioning groove 102 is disposed between two adjacent positioning through holes 101. In this embodiment, the uniform arrangement of multiple positioning protrusions 110 and positioning through holes 101 ensures that each position of the connecting strip 100 can be positioned and processed in the same way, ensuring the consistency of crimping of the crimping pins 200 and the connecting wires. During crimping, the corresponding connecting strip 100 is cut according to the number of crimping pins 200 to adapt to crimping devices with different numbers of crimping pins 200. The positioning protrusions 110 and positioning through holes 101 of the connecting strip 100 can be adapted and fixed on the corresponding crimping device, thereby improving the compatibility of the connecting strip 100.

[0035] like Figure 2 As shown, in one embodiment, the crimping pin 200 includes an integrally formed crimping member 210 and a plug member 220. One end of the plug member 220 is connected to the extended end of the connecting strip 100 in the width direction. The plug member 220 has a receiving groove 2201, and the crimping member 210 has a pressing groove 2101. The receiving groove 2201 and the pressing groove 2101 together form the circuit connection groove 201. The two opposite side walls of the middle portion of the crimping member 210 are respectively provided with a first crimping piece 211 and a second crimping piece 212. The first crimping piece 211 and the second crimping piece 212 are used to press and fix the connecting wire. In this embodiment, the connecting wire is passed through the circuit connection groove 201, and the connecting wire is pressed and fixed by the first crimping piece 211 and the second crimping piece 212, ensuring that the connecting wire will not shift or shake during installation, so that a good electrical connection is maintained between the connecting wire, the crimping member 210, and the plug member 220.

[0036] like Figure 2As shown, in one embodiment, the crimping member 210 has a first irregularly shaped crimping piece 213 and a second irregularly shaped crimping piece 214 protruding from one end adjacent to the connecting strip 100. The first irregularly shaped crimping piece 213 and the second irregularly shaped crimping piece 214 are offset from each other on opposite side walls of the crimping member 210. The first irregularly shaped crimping piece 213 and the second irregularly shaped crimping piece 214 are used to fix the connecting wire. In this embodiment, the first irregularly shaped crimping piece 213 and the second irregularly shaped crimping piece 214 are offset, so that the first irregularly shaped crimping piece 213 and the second irregularly shaped crimping piece 214 press the insulation layer outside the connecting wire at different angles and directions, further fixing the connecting wire and reducing the risk of loosening or falling off the connecting wire.

[0037] like Figure 4 As shown, in one embodiment, the extended end of the first irregular-shaped crimping piece 213 is provided with a first buckle 2131, and the extended end of the second irregular-shaped crimping piece 214 is provided with a second buckle 2141. In this embodiment, after the connecting wire is crimped, the first irregular-shaped crimping piece 213 and the second irregular-shaped crimping piece 214 wrap and compress the connecting wire, and the first buckle 2131 and the second buckle 2141 compress and limit the connecting wire on both sides, reducing the shaking of the connecting wire and improving the connection strength between the connecting wire and the crimping piece 210.

[0038] like Figure 2 As shown, in one embodiment, the crimping member 210 has a tapered groove 2102 formed at the end opposite to the connecting strip 100. The tapered groove 2102 is connected to both the receiving groove 2201 and the pressing groove 2101. In this embodiment, the narrow opening of the tapered groove 2102 limits and guides the connecting wire. Welding can be performed inside the tapered groove 2102. After the tapered groove 2102 accommodates the connecting wire and solder, the connection strength between the connecting wire and the crimping member 210 is increased, and the tensile strength is improved.

[0039] like Figure 1 As shown, in one embodiment, the crimping member 210 has a first through hole 2103 at one end adjacent to the connecting strip 100, and the first through hole 2103 communicates with the pressing groove 2101. In this embodiment, when the wire is crimped in the pressing groove 2101, a certain stress will be generated. The first through hole 2103 can play a role in dispersing stress and reducing local stress concentration.

[0040] like Figure 1As shown, in one embodiment, the connector 220 includes a pin portion 221 and a mounting portion 222 integrally connected. A receiving groove 2201 is formed in both the pin portion 221 and the mounting portion 222. Specifically, the receiving groove 2201 is located at the connection between the pin portion 221 and the mounting portion 222. A portion of the receiving groove 2201 is formed on the pin portion 221, and another portion is formed on the mounting portion 222. The radius of the pin portion 221 is smaller than the radius of the mounting portion 222. In this embodiment, the mounting portion 222 is used to fix and support the pin portion 221. The larger radius facilitates stable installation of the mounting portion 222 and enhances the overall structural strength of the connector 220. The smaller radius of the pin portion 221 allows for more precise insertion into the corresponding socket or connection hole.

[0041] like Figure 1 As shown, in one embodiment, the mounting portion 222 is further provided with a second through hole 2202, which communicates with the receiving groove 2201. In this embodiment, the connection between the connecting wire in the wiring mounting groove and the mounting portion 222 can be observed through the second through hole 2202, and it can be observed whether the connecting wire is in place in the receiving groove 2201, ensuring the electrical connection and fixing effect between the connecting guide connection end and the crimping pin 200.

[0042] Compared with the prior art, this disclosure has at least the following advantages:

[0043] The aforementioned connecting wire crimping pin structure 10, through the positioning through-hole 101 and positioning protrusion 110 on the connecting strip 100, achieves dual positioning in the installed crimping equipment, improving the positioning accuracy of the connecting strip 100 and ensuring that the position of the connecting strip 100 is fixed during production. This ensures accurate installation of the multiple crimping pins 200 on the connecting strip 100, resulting in good consistency after the multiple crimping pins 200 are crimped with the connecting wires, and high connection quality between the crimping pins 200 and the connecting wires; the inclined support block 120 provides support. The flat surface of the crimping pin 200 is abutted to reduce the breakage problem of the crimping pin 200 during movement, and enhance the connection between the crimping pin 200 and the connecting strip 100. Multiple crimping pins 200 are crimped with corresponding connecting wires, and then the connecting strip 100 is bent toward the side away from the inclined cutting groove 202, so that the crimping pin 200 and the connecting strip 100 are quickly disconnected, thereby making it easy to separate the crimping pin 200 and the connecting strip 100, and thus improving the production efficiency of connecting multiple crimping pins 200 with connecting wires.

[0044] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A connecting wire crimping contact structure, characterized by, The device includes an integrally stamped connecting strip and a crimping pin. The connecting strip has a positioning through hole for engaging with a protrusion of the crimping device. A positioning protrusion is provided on one side of the connecting strip for limiting the position of the connecting strip. The number of crimping pins is multiple, and the multiple crimping pins are spaced apart at the extended ends of the connecting strip in the width direction. Each crimping pin has a circuit connection groove and a beveled cutting groove at one end of each crimping pin adjacent to the connecting strip. The connecting strip has a beveled support block protruding from it, and the beveled support block is adapted to be embedded in the corresponding beveled cutting groove.

2. The connecting wire crimping pin structure according to claim 1, characterized in that, The positioning protrusion is positioned corresponding to the connection position of the crimping pin, and the end of the connecting strip opposite to the positioning protrusion is also provided with a positioning groove.

3. The connecting wire crimping pin structure according to claim 2, characterized in that, The number of positioning protrusions and positioning through holes is multiple, and the positioning protrusions and positioning through holes are arranged alternately in sequence. Each positioning groove is disposed between two adjacent positioning through holes.

4. The connecting wire crimping pin structure according to claim 1, characterized in that, The crimping pin includes an integrally formed crimping member and a plug member. One end of the plug member is connected to the extended end of the connecting material strip in the width direction. The plug member has a receiving groove, and the crimping member has a pressing groove. The receiving groove and the pressing groove together form the circuit connection groove. The two opposite side walls in the middle of the crimping member are respectively provided with a first crimping piece and a second crimping piece. The first crimping piece and the second crimping piece are used to press and fix the connecting wire.

5. The connecting wire crimping pin structure according to claim 4, characterized in that, The crimping member has a first irregular crimping piece and a second irregular crimping piece protruding from one end adjacent to the connecting strip. The first irregular crimping piece and the second irregular crimping piece are offset from each other on the opposite side walls of the crimping member. The first irregular crimping piece and the second irregular crimping piece are used to fix the connecting wire.

6. The connecting wire crimping pin structure according to claim 5, characterized in that, The first irregularly shaped crimping piece has a first undercut protruding from its extended end, and the second irregularly shaped crimping piece has a second undercut protruding from its extended end.

7. The connecting wire crimping pin structure according to claim 4, characterized in that, The end of the crimping member opposite to the connecting strip has a conical groove, which is connected to the receiving groove and the pressing groove respectively.

8. The connecting wire crimping pin structure according to claim 4, characterized in that, The crimping member has a first through hole at one end adjacent to the connecting strip, and the first through hole is connected to the crimping groove.

9. The connecting wire crimping pin structure according to claim 4, characterized in that, The connector includes a pin portion and a mounting portion that are connected as one piece. The receiving groove is formed in the pin portion and the mounting portion, and the radius of the pin portion is smaller than the radius of the mounting portion.

10. The connecting wire crimping pin structure according to claim 9, characterized in that, The mounting part is also provided with a second through hole, which is connected to the receiving groove.

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