Male and female integrated plugging cylinder-penetrating signal connector

Abstract

The invention provides a male-female integrated plug-in cylinder-penetrating signal connector, and the connector comprises an insulating housing which comprises a socket housing and a terminal housing which can be assembled with each other; a plurality of terminal mounting grooves are formed in the terminal shell; the sealing element is arranged on the mounting surface of the socket shell and is used for realizing sealing between the sealing element and a cylinder body panel; the number of the male and female integrated terminals is the same as that of the terminal mounting grooves, and the male and female integrated terminals are respectively mounted in the terminal mounting grooves; the male-female integrated terminal comprises a male terminal and a female terminal, and the right end of the male terminal is inserted into the left end of the female terminal to form a conductive unit body integrating the functions of the male terminal and the female terminal; the male terminal is used for being plugged with a female end of an external connector; the female terminal is used for being inserted into a PCB pin header assembly in the cylinder body; on the premise of meeting the electric signal transmission function, the design also has the adaptation convenience of a wire end universal plug and the internal intensive installation flexibility in a limited small space.

Description

Technical Field

[0001] This invention relates to the field of connectors, and in particular to a male-female integrated plug-in signal connector. Background Technology

[0002] Electrical signal connectors are widely used in vehicles, industrial equipment, and other fields, especially in scenarios where signal transmission needs to pass through sealed cylinder blocks (such as engine blocks, equipment housings, etc.). Cylinder-through connectors are key components for achieving both electrical signal transmission and airtight sealing. In existing technology, cylinder-through connectors typically consist of several parts, including an internal cylinder connector, an external cylinder connector, a wiring harness, and a cylinder-through component. Specifically, the internal cylinder connector is crimped to one end of the wiring harness and then fixed to the cylinder wall by the cylinder-through component; the external cylinder connector is crimped to the other end of the wiring harness, and signal transmission is ultimately achieved through mating.

[0003] Existing cylinder connectors mainly suffer from the following technical defects:

[0004] Complex structure and inconvenient assembly: The inner and outer connectors need to be crimped to the wire harness separately and then fixed by the cylinder clamp, resulting in a large number of parts, complicated assembly process and low operation efficiency.

[0005] Large space occupation: The connection between internal connectors and wire harnesses requires a large amount of space for bending and fixing, which is difficult to arrange, especially in space-constrained equipment, thus limiting the miniaturization and high-density installation of connectors.

[0006] High manufacturing costs: Multiple independent parts need to be manufactured and assembled separately, and the wire harness crimping process is complex, resulting in high material and processing costs.

[0007] Maintenance difficulties: If an internal connection fails, multiple components or even the entire wiring harness need to be disassembled, resulting in long repair times and high costs.

[0008] Low standardization: Most internal and external connectors are non-standard designs, which have poor compatibility with universal wire terminals and plugs, increasing the difficulty of material management and replacement. Summary of the Invention

[0009] The purpose of this invention is to provide a male-female integrated plug-in cylinder signal connector to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A male-female integrated plug-in signal connector for cylinders includes:

[0012] An insulating housing, comprising a socket housing and a terminal housing that can be assembled with each other; the terminal housing has a plurality of terminal mounting slots.

[0013] A sealing element is disposed on the mounting surface of the socket housing to achieve a seal between it and the cylinder panel;

[0014] The number of male and female integrated terminals is the same as that of the terminal mounting slots and they are installed in the terminal mounting slots respectively; the male and female integrated terminals include male terminals and female terminals, the right end of the male terminal is inserted into the left end of the female terminal to form a conductive unit that integrates the functions of male terminals and female terminals; the male terminal is used to plug into the female end of an external connector; the female terminal is used to plug into the PCB pin header assembly inside the cylinder.

[0015] Further description of the present invention: the male terminal is a flat strip structure; both ends of the male terminal are respectively provided with chamfered corners; the middle of the male terminal is provided with a front stop step; the right end of the male terminal is provided with an anti-reverse latch; the female terminal is an integrally formed wrapped cuboid structure; the left end of the female terminal forms a first insertion hole for connecting with the male terminal, and the right end forms a second insertion hole for interlocking with the PCB pins inside the cylinder; the top of the female terminal corresponding to the rear end position of the first insertion hole is provided with a vertically bent front stop limiting baffle; the front stop limiting baffle abuts against the rear end face of the male terminal; the left end face of the female terminal abuts against the front stop step of the male terminal; the top of the first insertion hole of the female terminal is also provided with an inclined downward bent anti-reverse limiting baffle; the anti-reverse limiting baffle extends into the anti-reverse latch of the male terminal.

[0016] Further description of the present invention: The top of the rear end face of the left side of the female terminal is provided with a first upper bend that bends forward horizontally; the anti-reverse limiting baffle is formed on the right side of the first upper bend; the top of the front end face of the left side of the female terminal is provided with a second upper bend that bends backward horizontally; the second upper bend is located at the bottom of the first upper bend; the left end of the second upper bend is connected to an upper contact spring through a first rolled connecting portion; the upper contact spring is located at the bottom of the second upper bend; the bottom of the upper contact spring is provided with a first protrusion; the first protrusion abuts against the upper end face of the male terminal; the left end of the lower end face of the left side of the female terminal is connected to a lower contact spring through a second rolled connecting portion; the lower contact spring is located below the upper contact spring; the top of the lower contact spring is provided with a second protrusion; the second protrusion abuts against the lower end face of the male terminal.

[0017] As further described in the present invention, the first upper bend and the second upper bend are fixedly connected by spot welding.

[0018] Further description of the present invention: the top end of the rear face of the female terminal at the right position is provided with a third upper bend and a fourth upper bend that bend forward horizontally; the fourth upper bend is located to the right of the third upper bend; the left end of the fourth upper bend is provided with a locking spring piece that is inclined to the upper left; the top of the terminal mounting groove is provided with a locking groove; the terminal housing is provided with a PIN removal hole to the right of each locking groove; when the male and female integrated terminal is inserted into the terminal housing, the locking spring piece abuts against the locking groove; the stop limit plate is formed at the left end of the third upper bend.

[0019] In a further description of the present invention, the front ends of the third upper bend and the fourth upper bend are connected to an upward bending direction anti-misbedding piece; the terminal mounting groove is provided with an anti-misbedding positioning groove that cooperates with the direction anti-misbedding piece.

[0020] In a further description of the present invention, the top of the front end face of the right side of the female terminal is provided with a backward-bent elastic contact portion; the elastic contact portion is a U-shaped structure with the opening facing to the right; the upper and lower sides of the elastic contact portion are respectively provided with a third protrusion protruding inward.

[0021] In a further description of the present invention, the socket housing has two mounting holes; a bushing is installed in the mounting holes; a plug-in portion is provided on the right side of the socket housing; a male buckle is provided on the plug-in portion; a plug-in assembly port that mates with the plug-in portion is provided on the left side of the terminal housing; a female buckle is provided on the plug-in assembly port; the socket housing is inserted into the plug-in assembly port of the terminal housing through the plug-in portion, and is fastened and fixed by the male buckle and the female buckle; the front and rear ends of the plug-in portion have different shapes to prevent assembly errors.

[0022] In a further description of the present invention, the rear end face of the plug-in portion is a plane and the front end face is an arc surface; the rear end face of the terminal housing is provided with a groove for identifying the direction.

[0023] In a further description of the present invention, the left end of the socket housing is a plug interface; the plug interface is provided with a first anti-foolproof key; and the mounting surface of the socket housing is provided with a second anti-foolproof key.

[0024] The beneficial effects of this invention are as follows:

[0025] The cylinder through-cylinder signal connector of this design adopts an integrated male and female terminal structure. The male terminal is used to plug into the female terminal of the external connector, and the female terminal is used to plug into the PCB pin header assembly inside the cylinder. While meeting the function of electrical signal transmission, it also has the convenience of universal plug adaptation and the flexibility of dense installation in a limited space. During the assembly process, simply assemble the integrated male and female terminals into the terminal mounting slot of the terminal housing, and then assemble the socket housing. The assembly is convenient and adaptable to the needs of dense installation. This design structure does not require a lot of messy wire harnesses and is easy to maintain. Attached Figure Description

[0026] Figure 1 This is an overall structural diagram of the present invention;

[0027] Figure 2 This is an exploded view of the present invention;

[0028] Figure 3 This is a structural diagram of the terminal housing of the present invention;

[0029] Figure 4 This is a structural diagram of the socket housing of the present invention;

[0030] Figure 5 This is a structural diagram of the male and female integrated terminal of the present invention;

[0031] Figure 6 This is a structural diagram of the male terminal of the present invention;

[0032] Figure 7 This is a top view of the female terminal of the present invention;

[0033] Figure 8 yes Figure 7 Sectional view of AA. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] like Figure 1-8 As shown, a male-female integrated plug-in cylinder signal connector includes:

[0036] An insulating housing 1 includes a socket housing 11 and a terminal housing 12 that can be assembled with each other; the terminal housing 12 is provided with a plurality of terminal mounting slots 121; the number of terminal mounting slots 121 is the same as the actual number of terminals required by the connector, and in this embodiment, three terminal mounting slots 121 are provided;

[0037] The sealing element 2 is disposed on the mounting surface of the socket housing 11 to achieve a seal between it and the cylinder panel. When the insulating housing 1 is assembled onto the cylinder panel, the sealing performance is improved by sealing through the sealing element 2.

[0038] The number of male and female integrated terminals 3 is the same as that of terminal mounting slots 121, and they are installed in the terminal mounting slots 121 respectively. The male and female integrated terminals 3 include male terminals 31 and female terminals 32. The right end of the male terminal 31 is inserted into the left end of the female terminal 32 to form a conductive unit that integrates the functions of male terminal 31 and female terminal 32. The male terminal 31 is used to plug into the female end of an external connector. The female terminal 32 is used to plug into the PCB pin header assembly inside the cylinder. While meeting the function of electrical signal transmission, it also has the convenience of universal plug adaptation and the flexibility of dense installation in a limited space. During the assembly process, the male and female integrated terminals 3 are simply assembled into the terminal mounting slots 121 of the terminal housing 12, and then the socket housing 11 is assembled. The assembly is convenient and adaptable to the needs of dense installation. This design structure does not require a lot of messy wire harnesses and is easy to maintain.

[0039] The male terminal 31 has a flat strip structure; both ends of the male terminal 31 are provided with chamfered corners 311, which facilitates the insertion of the male terminal 31; a stop step 312 is provided in the middle of the male terminal 31; an anti-retraction latch 313 is provided on one side of the right end of the male terminal 31; the female terminal 32 has an integrally formed wrapped cuboid structure; the left end of the female terminal 32 forms a first insertion hole 3201 for connecting with the male terminal 31, and the right end forms a second insertion hole 3202 for insertion into the PCB row inside the cylinder; a vertically bent stop limit plate 321 is provided at the top of the female terminal 32 corresponding to the rear end position of the first insertion hole 3201; the stop limit plate 321 abuts against the rear end face of the male terminal 31; the left end of the female terminal 32... The male terminal 31 has a stop step 312 that abuts against the male terminal 31. The top of the first insertion hole 3201 of the female terminal 32 is also provided with a downwardly bent anti-retraction limit plate 322. The anti-retraction limit plate 322 extends into the anti-retraction slot 313 of the male terminal 31. During the assembly of the male terminal 31 and the female terminal 32, the male terminal 31 is inserted into the female terminal 32 from the left side. The right end face of the male terminal 31 abuts against the stop step 321 and is limited by the stop step 321. At the same time, the stop step 312 of the male terminal 31 also abuts against the left end of the female terminal 32 for secondary limitation. After insertion, the anti-retraction limit plate 322 of the female terminal 32 is pressed down and extended into the anti-retraction slot 313 of the male terminal 31 to prevent the pin from being ejected and to achieve a stable connection between the male terminal 31 and the female terminal 32.

[0040] The female terminal 32 has a first upper bend 323 that bends forward horizontally at the top of its rear end face on the left side; the anti-reverse limiting plate 322 is formed on the right side of the first upper bend 323; the female terminal 32 has a second upper bend 324 that bends backward horizontally at the top of its front end face on the left side; the second upper bend 324 is located at the bottom of the first upper bend 323; the left end of the second upper bend 324 is connected to an upper contact spring 3242 via a first bending connecting part 3241; the upper contact spring 3242 is located at the bottom of the second upper bend 324; the bottom of the upper contact spring 3242 has a first protrusion 3242-1; the first The convex bulge 3242-1 abuts against the upper end face of the male terminal 31; the lower end face of the left side of the female terminal 32 is connected to the lower contact spring 326 through the second bent connecting part 325; the lower contact spring 326 is located below the upper contact spring 3242; the top of the lower contact spring 326 is provided with a second convex bulge 3261; the second convex bulge 3261 abuts against the lower end face of the male terminal 31; the upper contact spring 3242 and the lower contact spring 326 are integrally formed by bending through a specific structure for contacting the male terminal 31. The setting of the first convex bulge 3242-1 and the second convex bulge 3261 is conducive to obtaining a better contact conduction effect after breaking through the oxide layer of the contact interface.

[0041] The first upper bend 323 and the second upper bend 324 are fixedly connected by spot welding to improve stability.

[0042] The female terminal 32 has a third upper bend 327 and a fourth upper bend 328 that are horizontally bent forward at the top of its rear end face on the right side. The fourth upper bend 328 is located to the right of the third upper bend 327. The left end of the fourth upper bend 328 has a locking spring piece 3281 that is inclined to the upper left. The top of the terminal mounting groove 121 has a locking groove 122. The terminal housing 12 has a PIN removal hole 123 on the right side of each locking groove 122. When the male and female integrated terminal 3 is inserted into the terminal housing 12, the locking spring piece 3281 abuts against the locking groove 122. When the male and female integrated terminal 3 needs to be removed for maintenance, simply insert a pin into the PIN removal hole 123. The pin will press down the locking spring piece 3281, thus releasing the locking state and allowing the male and female integrated terminal 3 to be removed for maintenance.

[0043] The front ends of the third upper bend 327 and the fourth upper bend 328 are connected to an upward bending direction anti-misalignment piece 329; the terminal mounting groove 121 is provided with an anti-misalignment positioning groove 124 that cooperates with the direction anti-misalignment piece 329. When the male and female integrated terminals are assembled into the terminal housing 12, they are positioned by the cooperation of the direction anti-misalignment piece 329 and the anti-misalignment positioning groove 124. If the direction is wrong, they cannot be installed, thus avoiding assembly errors.

[0044] The front end of the right side of the female terminal 32 is provided with a backward-bent elastic contact portion 3210; the elastic contact portion 3210 is a U-shaped structure with the opening facing right; the upper and lower sides of the elastic contact portion 3210 are respectively provided with a third protrusion 3210-1 protruding inward, and the elastic contact portion 3210 is formed by a specific bending structure to interlock with the PCB pin header assembly. The third protrusion 3210-1 on the elastic contact portion 3210 is beneficial to obtaining a better contact conduction effect after breaking through the oxide layer of the contact interface.

[0045] The socket housing 11 has two mounting holes 111; a bushing 112 is installed in the mounting holes 111; a plug-in part 113 is provided on the right side of the socket housing 11; a male buckle 1131 is provided on the plug-in part 113; a plug-in assembly port 125 that mates with the plug-in part 113 is provided on the left side of the terminal housing 12; a female buckle 1251 is provided on the plug-in assembly port 125; the socket housing 11 is inserted into the plug-in assembly port 125 of the terminal housing 12 through the plug-in part 113, and is fastened and fixed by the male buckle 1131 and the female buckle 1251; the front and rear ends of the plug-in part 113 have different shapes to prevent incorrect assembly; after the screw passes through the bushing 112, it is locked into the cylinder panel to fix the insulating socket on the cylinder panel. The socket housing 11 and the terminal housing 12 are fastened by the male buckle 1131 and the female buckle 1251, which has a simple structure, is easy to assemble, and is designed with a foolproof structure to avoid incorrect installation.

[0046] The rear end face of the plug-in part 113 is a plane, and the front end face is an arc surface; the rear end face of the terminal housing 12 is provided with a hook groove 126 for identifying the direction. During assembly, the plane side of the plug-in part 113 and the hook groove 126 are located on the same side, which facilitates manual identification and assembly and improves the convenience and efficiency of assembly.

[0047] The left end of the socket housing 11 is a plug interface 114; the plug interface 114 is provided with a first anti-fool key 1141; the mounting surface of the socket housing 11 is provided with a second anti-fool key 115; the first anti-fool key 1141 is designed to prevent incorrect insertion with external connectors, and the second anti-fool key 115 is designed to prevent incorrect insertion with the cylinder body.

[0048] The above description is not intended to limit the scope of the present invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A hermaphroditic plug-in cylinder signal connector, characterized by include: An insulating housing, comprising a socket housing and a terminal housing that can be assembled with each other; the terminal housing has a plurality of terminal mounting slots. A sealing element is disposed on the mounting surface of the socket housing to achieve a seal between it and the cylinder panel; the number of male and female integrated terminals is the same as that of the terminal mounting slots and they are respectively installed in the terminal mounting slots; the male and female integrated terminals include male terminals and female terminals, the right end of the male terminal is inserted into the left end of the female terminal to form a conductive unit that integrates the functions of male terminals and female terminals; the male terminal is used to mate with the female end of an external connector; the female terminal is used to mate with the PCB pin header assembly inside the cylinder.

2. The hermaphroditic connector of claim 1, wherein: The male terminal is a flat strip structure; both ends of the male terminal are chamfered; the middle of the male terminal is provided with a front stop step; the right end of the male terminal is provided with an anti-reverse latch; the female terminal is an integrally formed rolled cuboid structure; the left end of the female terminal forms a first insertion hole for connecting with the male terminal, and the right end forms a second insertion hole for interlocking with the PCB pins inside the cylinder; the top of the female terminal corresponding to the rear end position of the first insertion hole is provided with a vertically bent front stop limit plate; the front stop limit plate abuts against the rear end face of the male terminal; the left end face of the female terminal abuts against the front stop step of the male terminal; the top of the first insertion hole of the female terminal is also provided with an inclined downward bent anti-reverse limit plate; the anti-reverse limit plate extends into the anti-reverse latch of the male terminal.

3. The hermaphroditic connector of claim 2, wherein: The female terminal has a first upper bend that bends horizontally forward at the top of its rear end face on the left side; a stop-and-limit plate is formed to the right of the first upper bend; the female terminal has a second upper bend that bends horizontally backward at the top of its front end face on the left side; the second upper bend is located at the bottom of the first upper bend; the left end of the second upper bend is connected to an upper contact spring via a first rolled connecting portion; the upper contact spring is located at the bottom of the second upper bend; the bottom of the upper contact spring has a first protrusion; the first protrusion abuts against the upper end face of the male terminal; the left end of the lower end face of the female terminal is connected to a lower contact spring via a second rolled connecting portion; the lower contact spring is located below the upper contact spring; the top of the lower contact spring has a second protrusion; the second protrusion abuts against the lower end face of the male terminal.

4. The hermaphroditic connector of claim 3, wherein: The first upper bend and the second upper bend are fixedly connected by spot welding.

5. The hermaphroditic connector of claim 2, wherein: The female terminal has a third and a fourth upper bend that are horizontally bent forward at the top of its rear end face on the right side. The fourth upper bend is located to the right of the third upper bend. The left end of the fourth upper bend has a locking spring piece that is inclined to the upper left. The top of the terminal mounting groove has a locking groove. The terminal housing has a PIN ejection hole on the right side of each locking groove. When the male and female integrated terminal is inserted into the terminal housing, the locking spring piece abuts against the locking groove. The stop limit plate is formed on the left end of the third upper bend.

6. The hermaphroditic connector of claim 5, wherein: The front ends of the third upper bend and the fourth upper bend are connected to an upward bending direction anti-fooling piece; the terminal mounting groove is provided with an anti-fooling positioning groove that cooperates with the direction anti-fooling piece.

7. The hermaphroditic connector of claim 5, wherein: The front end face top end of the right part position of the female terminal is provided with a rearwardly bent elastic contact part; the elastic contact part is a U-shaped structure with an opening facing right; the upper and lower sides of the elastic contact part are respectively provided with third convexes protruding inward.

8. The hermaphroditic connector of claim 1, wherein: Two mounting holes are arranged on the socket shell; bushings are mounted in the mounting holes; a plug-in part is arranged on the right side of the socket shell; a male buckle is arranged on the plug-in part; a plug-in assembly opening matched with the plug-in part is arranged on the left side of the terminal shell; a female buckle is arranged on the plug-in assembly opening; the socket shell is inserted into the plug-in assembly opening of the terminal shell through the plug-in part, and is fixed by the male buckle and the female buckle; the front and rear ends of the plug-in part are different in shape to prevent mistaken assembly.

9. The hermaphroditic connector of claim 8, wherein: The rear end face of the plug-in part is a plane, and the front end face is a circular arc face; a hook groove is arranged on the rear end face of the terminal shell to identify the direction.

10. The hermaphroditic connector of claim 1, wherein: The left end of the socket shell is a plug-in opening; a first mistaken assembly prevention key position is arranged in the plug-in opening; a second mistaken assembly prevention key position is arranged on one side of the mounting face of the socket shell.

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