Connector structure for a robot

By designing a line-end latching structure and a board-end outer iron shell structure, combined with stamped terminals, the problem of robot connectors coming loose under vibration and shock environments is solved, realizing integrated power and signal transmission and meeting the high reliability and high-efficiency production requirements of the new generation of robot connectors.

CN122436730APending Publication Date: 2026-07-21AMPHENOL EAST ASIA ELECTRONICS TECH (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AMPHENOL EAST ASIA ELECTRONICS TECH (SHENZHEN) CO LTD
Filing Date
2026-06-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing robot connectors are prone to loosening under vibration and shock environments, have complex structures, high costs, and cannot meet the high requirements for current carrying capacity and signal transmission.

Method used

By adopting a line-end latching structure and a board-end outer iron shell structure, combined with a stamped terminal design, it achieves integrated power and signal transmission, improves the reliability of the connector in vibration and shock environments, and reduces terminal manufacturing costs.

Benefits of technology

It achieves reliability and stability of connectors under vibration and shock environments, meets the requirements of high-dynamic robot applications, is suitable for mass production and long-term use, reduces terminal manufacturing costs, and improves dimensional stability and consistency.

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Abstract

The application relates to the field of connectors, in particular to a connector structure for a robot, which comprises a board end part and a wire end part; wherein the wire end part and the board end part are matched; a wire end injection body is formed by injection molding near a connection position of a wire end power cable and a wire end power terminal; a wire end bottom shell and a wire end signal PCB board bottom are further buckled with a wire end buckling plate; a wire end body is inserted into a cavity of a board end body; a board end power terminal is inserted into an inner wall of a wire end power terminal; a board end signal terminal contacts a wire end signal PCB board; a latch lock slot is horizontally inserted into a latch lock rear slot; a spring arm exerts force on the latch lock; the spring arm is forced to move downward; a lock plate of the latch lock is pushed along the latch lock slot; a retreat stopping boss is clamped into a retreat stopping clamping groove; a buckle on the spring arm is buckled into a latch lock hole for fixation; and the lock plate is inserted into a lock plate hole for fixation. The application has the beneficial effects of compact structure, high reliability, suitability for large-scale production and long-term stable use.
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Description

Technical Field

[0001] This invention relates to robot connectors, particularly a connector structure for robots with a latching structure at the wire end and an outer iron shell structure at the board end, which improves the reliability of the connector under vibration and shock environments, solves the problem of loosening in dynamic environments, and is suitable for mass production and long-term stable use. Background Technology

[0002] With the continuous growth of the robotics industry, the requirements for connectors are constantly increasing. The compact internal space of robots and automated equipment places higher demands on connectors in terms of size, current carrying capacity, signal transmission capability, and vibration resistance. Existing robot connectors generally suffer from the following problems: complex terminal structures, high processing costs, and poor dimensional consistency; connectors capable of carrying large currents are bulky, which is not conducive to wiring within the confined space of a robot; power and signal components are often arranged separately, leading to complex assembly; and the lack of reliable locking structures makes them prone to loosening under vibration and shock environments. Therefore, a simple, compact, and highly reliable power and signal connector for robots is needed. Current connectors can no longer meet the higher requirements of next-generation robot connectors. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a connector structure that differs from common methods. It employs a latching structure at the wire end and an outer metal shell structure at the board end, improving connector reliability under vibration and shock environments and resolving loosening issues in dynamic environments. The stamped terminal structure significantly reduces terminal manufacturing costs while improving terminal dimensional stability and consistency. It achieves a streamlined design while maintaining a 20A current carrying capacity, allowing the wire end to adapt to various robot structures via 8.5mm diameter holes. It enables integrated power and high-speed signal transmission, meeting the 100Mbps communication requirements of automotive Ethernet and industrial Ethernet. Suitable for high-dynamic robot applications, it achieves a compact, highly reliable connector structure suitable for mass production and long-term stable use in robots.

[0004] Specifically, the technical solution provided by this invention is: a connector structure for a robot, comprising a board-end component and a wire-end component; wherein the wire-end component and the board-end component are mated; The line terminal component includes a line terminal body, a line terminal injection molded body, a line terminal bottom shell, a line terminal power cable, and a line terminal signal cable. One end of the line terminal power cable is connected to a line terminal power terminal. One end of the line terminal power cable and the line terminal power terminal are inserted into the inner cavity of the line terminal body, and one end of the line terminal power terminal is open. Near the connection point between the line terminal power cable and the line terminal power terminal, there is an injection molded line terminal body. The line terminal signal cable is located below the line terminal power cable. One end of the line terminal signal cable is connected to a line terminal signal PCB board. The line terminal bottom shell is fastened to the bottom of the line terminal body. The bottom of the line terminal signal PCB board and the line terminal bottom shell are also fastened with a line terminal fastening plate. The top of the line end body is equipped with a Latch lock and a Latch lock slot. The Latch lock slot has a raised anti-reverse boss. The Latch lock is a lock plate with an upwardly bent spring arm. The bottom of the Latch lock plate has an anti-reverse slot that matches the anti-reverse boss. The spring arm of the Latch lock has an upwardly protruding buckle. The board-end component includes a board-end body, board-end power terminals, board-end signal terminals, and an outer iron shell. The board-end power terminals and board-end signal terminals are both inserted into the inner cavity of the board-end body, with the board-end signal terminals located below the board-end power terminals. The top two sides of the board-end body are provided with Latch locking grooves. Both sides of the board-end body are provided with iron shell bosses. The top of the outer iron shell is provided with Latch locking holes that match the protruding buckles, and both sides of the outer iron shell are provided with iron shell locking holes that match the iron shell bosses. The iron shell bosses engage with the iron shell locking holes on both sides of the outer iron shell to lock and fix the outer iron shell onto the board-end body. When the wire end component and the board end component are inserted, the wire end body is inserted into the inner cavity of the board end body, the board end power terminal is inserted into the inner wall of the wire end power terminal, the board end signal terminal contacts the wire end signal PCB board, the Latch lock slot is horizontally inserted into the Latch lock rear slot, force is applied to the Latch lock spring arm, the spring arm is forcefully downward, the Latch lock plate is pushed along the Latch lock slot, the anti-reverse boss is engaged in the anti-reverse slot, and the buckle on the spring arm is engaged into the Latch lock hole for fixation.

[0005] In the further optimized design, the outer iron shell is a frame that surrounds the bottom opening on three sides. The main body of the board end is provided with an outer iron shell groove, and the outer iron shell is inserted into the outer iron shell groove to improve the reliability and stability of the connector under vibration and shock environments.

[0006] In the further optimized solution, the injection molded body of the line end is stamped and formed to wrap the line end power terminal and the line end signal terminal, which is used to improve the dimensional stability and consistency of the line end power terminal and the line end signal terminal.

[0007] In the further optimized solution, the size of the wire end component is designed to pass through an 8.5mm diameter hole, which allows it to be adapted to various robot structures while ensuring a current flow capacity of 20A.

[0008] In the further optimized solution, the wire end fastening plate fixes the wire end power terminal and the wire end signal terminal inside the wire end body, and the wire end fastening plate is ultrasonically welded to the bottom of the wire end body.

[0009] In the further optimized design, the spring arm of the Latch lock and the lock plate of the Latch lock are integrally formed.

[0010] In the further optimized design, the tail end of the latch arm is equipped with an upward-curving push plate for pressing the latch arm.

[0011] In the further optimized design, both sides of the wire end body are provided with upper and lower protruding buckle plates. The wire end injection molded body is injection molded together with the wire end body to wrap the buckle plates, making the connection between the wire end injection molded body and the wire end body more stable.

[0012] In the further optimized design, the tail end of the board-end power terminal is an outwardly convex arc shape, with the arc-shaped protrusion contacting the inner wall of the wire-end power terminal.

[0013] In the further optimized solution, when the plate end component detaches from the wire end component; press the spring arm of the Latch lock, and the spring arm is subjected to downward force; when the top of the buckle is lower than the bottom of the Latch lock hole; pull out, and the plate end component and the wire end component detach.

[0014] The beneficial effects of adopting the above technical solution are as follows: Compared with the disclosed technical solutions, the innovative feature of this connector structure for robots lies in the significant reduction of terminal manufacturing costs through the use of a stamped terminal structure, while improving the stability and consistency of terminal dimensions; it achieves a streamlined design while ensuring a 20A current carrying capacity, with the wire end adaptable to various robot structures through 8.5mm diameter holes; it achieves integrated transmission of power and high-speed signals, meeting the 100Mbps communication requirements of automotive Ethernet and industrial Ethernet; the wire end uses a latching structure, and the board end uses an outer iron shell structure, improving the reliability of the connector in vibration and shock environments, making it suitable for high-dynamic robot applications; it achieves a compact structure and high reliability, suitable for mass production and long-term stable use. Thus, it meets the requirements of next-generation robot connectors. Attached Figure Description

[0015] Figure 1 This is an exploded view of a connector structure used in robots; Figure 2 This is a top view of an overall connector structure used in robots; Figure 3 This is a side view of an overall connector structure used in robots; Figure 4 This is a bottom view of an overall connector structure used in robots; Figure 5This is a cross-sectional view of a connector structure used in robots; Figure 6 This is a vertical sectional view of a connector structure used in robots; Figure 7 This is a rear sectional view of a connector structure used in robots; Figure 8 This is a view of an end component of a connector structure board used in robots; Figure 9 This is a view of the size of a connector structure used in robots.

[0016] Line end component-1; Line end body-11; Line end injection molded body-12; Line end bottom shell-13; Line end power cable-14; Line end signal cable-15; Line end power terminal-16; Line end signal PCB board-17; Line end snap-fit ​​plate-18; Latch lock-19; Lock plate-191; Spring arm-192; Buckle-193; Latch lock groove-111; Anti-reverse boss-112; Buckle plate-113; Board end component-2; Board end body-21; Board end power terminal-22; Board end signal terminal-23; Outer iron shell-24; Latch lock rear groove-211; Outer iron shell groove-212; Iron shell boss-213; Latch lock hole-241; Iron shell lock hole-242. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1 to 9 The invention will be described in detail with reference to specific embodiments, but this is not intended to limit the invention. Example

[0018] As attached Figures 1-9 As shown, a connector structure for a robot includes a wire end component 1 and a board end component 2; wherein the wire end component 1 and the board end component 2 are mated.

[0019] like Figure 1 and Figure 3As shown, the wire end component 1 includes a wire end body 11, a wire end injection molded body 12, a wire end bottom shell 13, a wire end power cable 14, and a wire end signal cable 15. One end of the wire end power cable 14 is connected to a wire end power terminal 16. The top of the wire end body 11 is provided with a Latch lock 19 and a Latch lock groove 111. The Latch lock groove 111 is provided with a raised anti-reverse boss 112. The Latch lock 19 is a lock plate 191 and is provided with an upwardly bent spring arm 192. The bottom of the lock plate 191 of the Latch lock 19 is provided with an anti-reverse slot that matches the anti-reverse boss 112. The spring arm 192 of the Latch lock 19 is provided with an upwardly protruding buckle 193. The plate end component 2 includes a plate end body 21, a plate end power terminal 22, a plate end signal terminal 23, and an outer iron shell 24. The top two sides of the plate end body 21 are provided with Latch lock rear grooves 211. Both sides of the plate end body 21 are provided with iron shell bosses 213, and the outer iron shell 24 is provided with... The top is provided with a latch 241 that matches the protruding buckle 193, and both sides of the outer iron shell 24 are provided with iron shell latches 242 that match the iron shell bosses 213; the iron shell bosses 213 are engaged with the iron shell latches 242 on both sides of the outer iron shell 24 to lock the outer iron shell 24 onto the board end body 21; the outer iron shell 24 is a frame that surrounds the bottom opening on three sides, and the board end body 21 is provided with an outer iron shell groove 212, into which the outer iron shell 24 is engaged to improve the reliability and stability of the connector under vibration and shock environments.

[0020] like Figure 9 As shown, the size of the line end component 1 is such that it can pass through a hole with a diameter of 8.5mm, which is used to adapt to various robot structures while ensuring a current flow capacity of 20A.

[0021] like Figure 8 As shown, the wire end fastening plate 18 is ultrasonically welded to the bottom of the wire end body 11.

[0022] The spring arm 192 of the Latch lock 19 is integrally formed with the lock plate 191 of the Latch lock 19. The end of the spring arm 192 of the Latch lock 19 has an upward-curving push plate for pressing the spring arm 192.

[0023] like Figure 3 As shown, the wire end body 11 has upper and lower protruding buckle plates 113 on both sides. The wire end injection molding body 12 is injection molded with the wire end body 21 and wraps around the buckle plates 113. The connection between the wire end injection molding body 12 and the wire end body 11 is more stable.

[0024] like Figure 5 As shown, the end of the board-end power terminal 22 is an outwardly convex arc shape, and the arc-shaped protrusion contacts the inner wall of the wire-end power terminal 16.

[0025] As attached Figures 1 to 6As shown, a connector structure for a robot is described, in which wire end component 1 and board end component 2 are mated. One end of the power cable 14 is inserted into the inner cavity of the power terminal 16 and the power terminal 16 is open. There is a molded power terminal body 12 near the connection between the power cable 14 and the power terminal 16. The signal cable 15 is located below the power cable 14. One end of the signal cable 15 is connected to the signal PCB board 17. The bottom shell 13 is fastened to the bottom of the power terminal 11. The bottom of the signal PCB board 17 and the bottom shell 13 are also fastened to the fastening plate 18. The power terminal 22 and the signal terminal 23 are both inserted into the inner cavity of the power terminal 21. The signal terminal 23 is located below the power terminal 22. The outer iron shell 24 is inserted into the outer iron shell groove 212. The iron shell boss 213 is inserted into the iron shell locking holes 242 on both sides of the outer iron shell 24 to lock and fix the outer iron shell 24 onto the power terminal 21. When the wire end component 1 and the board end component 2 are inserted, the wire end body 11 is inserted into the inner cavity of the board end body 21, the board end power terminal 22 is inserted into the inner wall of the wire end power terminal 22, and the board end signal terminal 23 contacts the wire end signal PCB board 17. The Latch lock rear groove 211 is located on both sides above the board end body 21. The Latch lock groove 111 is horizontally inserted into the Latch lock rear groove 211, and force is applied to the spring arm 192 of the Latch lock 19. The spring arm 192 is subjected to downward force, and the lock plate 191 of the Latch lock 19 is pushed along the Latch lock groove 111. The anti-reverse boss 112 is engaged in the anti-reverse slot, and the buckle 193 on the spring arm 192 is engaged into the Latch lock hole 241 for fixation. When the board end component 2 is disengaged from the wire end component 1, the spring arm 192 of the Latch lock 19 is pressed, and the spring arm 192 is subjected to downward force. When the top of the buckle 193 is lower than the bottom of the Latch lock hole 241, it is pulled out, and the board end component 2 and the wire end component 1 are disengaged. By adopting a stamped terminal structure, the manufacturing cost of the terminals is significantly reduced, while improving the stability and consistency of terminal dimensions. A streamlined design is achieved while ensuring a 20A current carrying capacity. The wire ends can be accommodated through 8.5mm diameter holes, adapting to various robot structures. Integrated power and high-speed signal transmission is achieved, meeting the 100Mbps communication requirements of automotive Ethernet and industrial Ethernet. The wire ends utilize a latching structure, and the board end employs an outer metal shell structure, improving the connector's reliability under vibration and shock environments, making it suitable for high-dynamic robot applications. The result is a compact structure with high reliability, suitable for mass production and long-term stable use. Thus, it meets the requirements of next-generation robot connectors. This achieves the objective of the invention.

[0026] As is known from common technical knowledge, this technical solution can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or equivalent to the scope of this invention are included in this invention.

Claims

1. A connector structure for a robot, comprising a board-end component and a wire-end component; wherein the wire-end component and the board-end component are mated; Its features are: The line terminal component includes a line terminal body, a line terminal injection molded body, a line terminal bottom shell, a line terminal power cable, and a line terminal signal cable. One end of the line terminal power cable is connected to a line terminal power terminal. One end of the line terminal power cable and the line terminal power terminal are inserted into the inner cavity of the line terminal body, and one end of the line terminal power terminal is open. Near the connection point between the line terminal power cable and the line terminal power terminal, there is an injection molded line terminal body. The line terminal signal cable is located below the line terminal power cable. One end of the line terminal signal cable is connected to a line terminal signal PCB board. The line terminal bottom shell is fastened to the bottom of the line terminal body. The bottom of the line terminal signal PCB board and the line terminal bottom shell are also fastened with a line terminal fastening plate. The top of the line end body is equipped with a Latch lock and a Latch lock slot. The Latch lock slot is equipped with a raised anti-reverse boss. The Latch lock is a lock plate with an upwardly bent spring arm. The bottom of the Latch lock plate is equipped with an anti-reverse slot that matches the anti-reverse boss. The spring arm of the Latch lock is equipped with an upwardly protruding buckle. The board-end component includes a board-end body, board-end power terminals, board-end signal terminals, and an outer iron shell. The board-end power terminals and board-end signal terminals are both inserted into the inner cavity of the board-end body, with the board-end signal terminals located below the board-end power terminals. The top two sides of the board-end body are provided with Latch locking grooves. Both sides of the board-end body are provided with iron shell bosses. The top of the outer iron shell is provided with Latch locking holes that match the protruding buckles, and both sides of the outer iron shell are provided with iron shell locking holes that match the iron shell bosses. The iron shell bosses engage with the iron shell locking holes on both sides of the outer iron shell to lock and fix the outer iron shell onto the board-end body. When the wire end component and the board end component are mated, the wire end body is inserted into the inner cavity of the board end body, the board end power terminal is inserted into the inner wall of the wire end power terminal, the board end signal terminal contacts the wire end signal PCB board, the Latch lock slot is horizontally inserted into the Latch lock rear slot, force is applied to the Latch lock spring arm, the spring arm is forcefully downward, the Latch lock plate is pushed along the Latch lock slot, the anti-reverse boss is engaged in the anti-reverse slot, and the buckle on the spring arm is engaged into the Latch lock hole for fixation.

2. The connector structure for a robot according to claim 1, characterized in that: The outer metal shell is a frame that surrounds the bottom opening on three sides. The main body at the end of the board has an outer metal shell groove, and the outer metal shell is inserted into the outer metal shell groove to improve the reliability and stability of the connector under vibration and shock environments.

3. The connector structure for a robot according to claim 1, characterized in that: The injection molded part of the line end is stamped and formed to encapsulate the power terminal and signal terminal of the line end, which is used to improve the dimensional stability and consistency of the power terminal and signal terminal of the line end.

4. The connector structure for a robot according to claim 1, characterized in that: The wire end component is sized to pass through an 8.5mm diameter hole, allowing it to adapt to various robot structures while ensuring a current flow capacity of 20A.

5. The connector structure for a robot according to claim 1, characterized in that: The wire end fastening plate fixes the power terminal and signal terminal of the wire end inside the wire end body. The wire end fastening plate is ultrasonically welded to the bottom of the wire end body.

6. The connector structure for a robot according to claim 1, characterized in that: The spring arm of the Latch lock and the lock plate are integrally formed.

7. The connector structure for a robot according to claim 1, characterized in that: The latch has an upward-curving button at the end of the spring arm for pressing the spring arm.

8. The connector structure for a robot according to claim 1, characterized in that: Both sides of the wire end body are provided with raised buckle plates. The wire end injection molding body is injection molded together with the wire end body to wrap the buckle plates, making the connection between the wire end injection molding body and the wire end body more stable.

9. The connector structure for a robot according to claim 1, characterized in that: The power terminal at the board end has an outward-convex arc shape at its tail end, and the arc-shaped protrusion contacts the inner wall of the power terminal at the wire end.

10. The connector structure for a robot according to claim 1, characterized in that: When the plate end component detaches from the wire end component; press the spring arm of the Latch lock, the spring arm is forced downward; when the top of the latch is lower than the bottom of the Latch lock hole; pull out, the plate end component and the wire end component detach.