A wiring harness connector and wiring harness assembly with high tensile strength

Abstract

The present invention discloses a wiring harness connector and a wiring harness assembly with high tensile strength, comprising a wiring harness body and a connector body arranged at one end of the wiring harness body; the connector body is provided with a first socket; a slider is slidably sleeved on the open end of the connector body; a tension spring is connected between the slider and the connector body; the slider has a second socket adapted to the first socket; two upper and lower corresponding driving rods are provided at the open end of the connector body; the second socket is provided with two upper and lower corresponding locking blocks that slide vertically at its open position; each locking block is connected to a first spring between the slider; each locking block is penetrated by a driving hole; the two driving rods penetrate the two driving holes in a one-to-one correspondence; the tensile strength and reliability of the wiring harness connection are effectively improved, and the invention is particularly suitable for application scenarios in medical devices that have high requirements for signal continuity and connection security.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness connectors, and in particular to a wire harness connector and a wire harness assembly with high tensile strength. Background Art

[0002] Existing medical wiring harness connectors mostly use conventional crimping or snap-fit methods to secure wires to terminals. In daily use, these connectors are susceptible to interference from external forces such as medical manipulation, equipment movement, and patient movement. Once the harness is pulled, existing connectors can become loose or accidentally disconnected due to external forces, leading to signal interruption and treatment interruption, impacting the normal operation of medical equipment and posing a significant risk. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a wiring harness connector and wiring harness assembly with high tensile strength, which effectively improves the tensile strength and reliability of the wiring harness connection, and is particularly suitable for application scenarios in medical devices that have high requirements for signal continuity and connection security.

[0004] To achieve the above object, the specific solutions of the present invention are as follows:

[0005] In one aspect, the present invention provides a wiring harness connector with high tensile strength, comprising a wiring harness body and a connector body disposed at one end of the wiring harness body; the connector body is provided with a first socket; a slider is slidably sleeved on an open end of the connector body; a tension spring is connected between the slider and the connector body; the slider has a second socket adapted to the first socket;

[0006] Two upper and lower corresponding driving rods are provided at the open end of the joint body; the second socket is provided with two upper and lower corresponding locking blocks for vertical sliding at its open position; each locking block is connected to the slider with a first spring; each locking block is penetrated by a driving hole; the two driving rods penetrate the two driving holes one by one.

[0007] Furthermore, in the present invention, tension springs are connected between the upper and lower sides of the slider and the joint body.

[0008] Furthermore, in the present invention, two first springs are connected between each locking block and the slider; and the two first springs are arranged at intervals.

[0009] Furthermore, the present invention has an arc portion at one end of the locking block extending into the second socket.

[0010] Furthermore, in the present invention, the driving hole includes a vertical section and an inclined section; one end of the vertical section is connected to one end of the inclined section.

[0011] The present invention further provides a locking key for vertical sliding on the top surface of the connector body; a second spring is connected between the locking key and the connector body; the slider is provided with a socket; a locking groove is provided in the socket; an extension arm extends from the locking key; the extension arm movably passes through the connector body and then movably inserts into the socket; the end of the extension arm is provided with a locking platform that can be inserted into the lock groove.

[0012] Furthermore, in the present invention, the number of the second springs is two, and the two second springs are arranged at intervals.

[0013] The present invention further provides that the two ends of the locking key are respectively provided with extension arms; the slider is correspondingly provided with two insertion holes; and the ends of the two extension arms are inserted into the two insertion holes in a one-to-one correspondence.

[0014] On the other hand, the present invention also provides a wiring harness assembly, including a connector and a wiring harness connector as described above; the connector includes a connector body having a plug-in interface; an inverted triangular locking boss is provided in the plug-in interface; the small end of the locking boss is away from the opening position of the plug-in interface; the inner wall of the plug-in interface is provided with a top plate that slides horizontally on the upper and lower sides of the locking boss; a third spring is connected between the top plate and the connector; the stiffness of the third spring is less than the stiffness of the first spring.

[0015] Furthermore, in the present invention, two third springs arranged at intervals are connected between each of the top plates and the connector.

[0016] The beneficial effects of the present invention are: the present invention can automatically lock in the normal plug-in state through the cooperation between the locking block and the locking boss, and the cooperation between the driving rod and the driving hole, and when subjected to external force, it can simultaneously enhance the locking force to ensure that it can still maintain a stable connection under the force state, avoid loosening or accidental disengagement, effectively improve the tensile strength and reliability of the wiring harness connection, and is particularly suitable for application scenarios in medical devices that have high requirements for signal continuity and connection security; and can convert external pulling force into elastic potential energy, effectively reducing the impact on the wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional schematic diagram of the wiring harness assembly of the present invention after the connector and the wiring harness connector are plugged in;

[0018] Figure 2 is a cross-sectional schematic diagram of the wiring harness assembly of the present invention when being pulled by an external force;

[0019] Figure 3 It is a structural schematic diagram of the wiring harness connector of the present invention;

[0020] Figure 4 is a cross-sectional schematic diagram of the wiring harness connector of the present invention;

[0021] Figure 5 is an exploded schematic diagram of the wiring harness connector of the present invention;

[0022] Figure 6 is a cross-sectional schematic diagram of the wiring harness connector of the present invention from another perspective;

[0023] Figure 7 It is a structural schematic diagram of the slider of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the locking block of the present invention;

[0025] Figure 9 is a cross-sectional view of the connector of the present invention;

[0026] Figure 10 is a schematic cross-sectional view of the connector of the present invention;

[0027] Explanation of the accompanying drawings: 11. wiring harness body; 12. connector body; 121. first socket; 122. drive rod; 13. slider; 131. second socket; 132. socket; 133. locking slot; 14. tension spring; 15. locking block; 151. drive hole; 1511. vertical section; 1512. inclined section; 152. arc portion; 16. first spring; 17. locking key; 171. extension arm; 172. locking platform; 18. second spring; 19. first conductive terminal; 21. connector body; 211. plug interface; 212. locking boss; 22. top plate; 23. third spring; 24. second conductive terminal. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0029] like Figures 1 to 10 As shown, a wiring harness assembly described in this embodiment includes a connector and a wiring harness connector for electrically plugging the connector; the wiring harness connector includes a wiring harness body 11 and a connector body 12 connected to one end of the wiring harness body 11; the connector body 12 is provided with a first socket 121; the first socket 121 is provided with a first conductive terminal 19 electrically connected to the wiring harness body 11; the open end of the connector body 12 is horizontally slidably sleeved with a slider 13; a tension spring 14 is connected between the slider 13 and the connector body 12; the slider 13 is kept in contact with the end wall of the connector body 12 under the action of the tension spring 14; the slider 13 has a second socket 131 adapted to the first socket 121; the first socket 121 and the second socket 131 are combined to form a connection port for plugging with the connector;

[0030] The open end of the connector body 12 is provided with two upper and lower corresponding driving rods 122; the second socket 131 is provided with two upper and lower corresponding locking blocks 15 in a vertically slidable manner at its open position; each locking block 15 is connected to the slider 13 by a first spring 16; the two locking blocks 15 are respectively extended into the second socket 131 under the elastic force of the first spring 16; each locking block 15 is penetrated by a driving hole 151; the two driving rods 122 pass through the two driving holes 151 in a one-to-one correspondence, so that when the connector body 12 moves relative to the slider 13, the connector body 12 can cooperate with the driving holes 151 through the driving rods 122, so that the locking blocks 15 overcome the elastic force of the first spring 16 and move;

[0031] The connector includes a connector body 21 having an insertion port 211 so that the connector body 12 can be inserted into the connector for mating operation; an inverted triangular locking boss 212 is provided in the insertion port 211; the small end of the locking boss 212 is away from the opening position of the insertion port 211; a second conductive terminal 24 for electrically connecting to the first conductive terminal 19 is provided in the insertion port 211, and the second conductive terminal 24 is provided at the large end of the locking boss 212; when mating, the second conductive terminal 24 and the locking boss 212 can extend into the connection port; the inner wall of the insertion port 211 is provided with a top plate 22 on the upper and lower sides of the locking boss 212 for horizontal sliding; a third spring 23 is connected between the top plate 22 and the connector; the stiffness of the third spring 23 is less than that of the first spring 16.

[0032] The second conductive terminal 24 is inserted into the connecting port, and when the locking boss 212 is inserted into the connecting port, the large end of the locking boss 212 squeezes the two locking blocks 15 respectively, so that the two locking blocks 15 respectively overcome the elastic force of the first spring 16 and retract, and the driving rod 122 moves along the driving hole 151. As the locking boss 212 is inserted, the large end of the locking boss 212 gradually releases the squeezing of the locking block 15, and the locking block 15 gradually extends under the elastic force of the first spring 16. When the slider 13 contacts the top plate 22, the slider 13 squeezes the top plate 22, so that the third spring 23 is compressed. After the top plate 22 is compressed into place, the wiring harness connector is inserted into place, and the locking block 15 is fully extended under the elastic force of the first spring 16, and the locking block 15 does not contact the surface of the locking boss 212.

[0033] Then release the thrust on the harness connector. At this time, the third spring 23 pushes the top plate 22 to reset. The top plate 22 pushes the harness connector to retreat a certain distance until the locking block 15 contacts and abuts against the surface of the locking boss 212 again. Since the stiffness of the first spring 16 is greater than the stiffness of the third spring 23, the top plate 22 is reset after the locking block 15 contacts the locking boss 212. Figure 1As shown, at this time, the two locking blocks 15 cooperate with the locking boss 212 to form a locking structure to lock the wiring harness connector so that the wiring harness connector and the connector remain plugged in.

[0034] like Figure 2 As shown, when the wiring harness connector is pulled by an external force, the connector body 12 moves relative to the connector, and the connector body 12 drives the driving rod 122 to move. The driving rod 122 cooperates with the driving hole 151, causing the locking block 15 to extend. Since the locking block 15 is in surface contact with the locking boss 212, the stiffness of the first spring 16 is greater than the stiffness of the second spring 18, so that the driving rod 122 pushes the slider 13 to slide relative to the connector body 12 and squeezes the top plate 22, and the top plate 22 compresses the third spring 23. At the same time, the tension spring 14 is stretched, and as the slider 13 slides relative to the connector body 12, the drive rod 122 cooperates with the drive hole 151, allowing the locking block 15 to overcome the tension of the first spring 16 and continue to extend until it contacts the surface of the locking boss 212. This converts external pulling force into elastic potential energy, avoiding direct impact on the locking structure. At the same time, the cooperation between the drive rod 122 and the drive hole 151 further strengthens the locking state of the locking structure, ensuring that the wiring harness connector will not loosen due to pulling force. This structure has the characteristic of more locking as the force applied increases, effectively eliminating the risk of wiring harness components being disengaged due to stress on the wiring harness at the medical site.

[0035] This embodiment can automatically lock in the normal plug-in state through the cooperation between the locking block 15 and the locking boss 212, and the cooperation between the drive rod 122 and the drive hole 151. When pulled by external force, the locking force can be simultaneously enhanced to ensure that the connection can be maintained firmly under the stress state, avoiding loosening or accidental disconnection, effectively improving the tensile strength and reliability of the wiring harness connection, and is particularly suitable for application scenarios in medical devices that have high requirements for signal continuity and connection security; and can convert external pulling force into elastic potential energy, effectively reducing the impact on the wiring harness.

[0036] like Figure 4 and Figure 5 As shown, in some embodiments of the wiring harness assembly of this embodiment, tension springs 14 are connected between the upper and lower sides of the slider 13 and the connector body 12. In this embodiment, tension springs 14 are provided on the upper and lower sides of the slider 13, which has a better buffering effect and is more conducive to protecting the wiring harness.

[0037] like Figure 5 As shown, in some embodiments of the wiring harness assembly of this embodiment, each locking block 15 is connected to the slider 13 with two first springs 16; the two first springs 16 are spaced apart. In this embodiment, by providing two first springs 16, the force on each locking block 15 is more evenly distributed, and when locked, a more sufficient locking force can be achieved.

[0038] like Figure 4 、 Figure 6 and Figure 8 As shown, in some embodiments of the wiring harness assembly of this embodiment, the end of the locking block 15 extending into the second socket 131 is provided with a circular arc portion 152. In this embodiment, the above arrangement allows the locking block 15 to contact the locking boss 212 via the circular arc portion 152, reducing friction therebetween. This makes it easier for the locking block 15 to pass over the large end of the locking boss 212 during insertion.

[0039] like Figure 8 As shown, in some embodiments of the wiring harness assembly of this embodiment, the drive hole 151 includes a vertical section 1511 and an inclined section 1512; one end of the vertical section 1511 is connected to one end of the inclined section 1512. Specifically, the drive holes 151 of the two locking blocks 15 are symmetrically arranged vertically; the connection between the vertical section 1511 and the inclined section 1512 forms an inflection point. When the wiring harness connector is plugged in, the driving rod 122 is at the inflection point position; when plugged in, the locking block 15 is squeezed inward by the locking boss 212, and the driving rod 122 enters the vertical section 1511 from the inflection point position. After being plugged in, the first spring 16 pushes the locking block 15 out, and the driving rod 122 returns to the inflection point position again; when subjected to external pulling force, the driving rod 122 enters the inclined section 1512 from the inflection point position, thereby driving the slider 13 to squeeze the top plate 22 to slide, and causing the locking block 15 to extend outward under the action of the first spring 16 to maintain the locking cooperation between the locking block 15 and the locking boss 212. At this time, the first spring 16 is stretched, thereby strengthening the locking state.

[0040] like Figures 3 to 6 As shown, in the wiring harness assembly of this embodiment, in some embodiments, a locking key 17 is provided on the top surface of the connector body 12 for vertical sliding; a second spring 18 is connected between the locking key 17 and the connector body 12; the slider 13 is provided with a socket 132; a locking groove 133 is provided in the socket 132; an extension arm 171 extends from the locking key 17; the extension arm 171 is movably inserted into the socket 132 after passing through the connector body 12; and a locking platform 172 is provided at the end of the extension arm 171 that can be inserted into the locking groove 133.

[0041] When the wiring harness connector is plugged into the connector, the locking groove 133 corresponds to the position of the locking platform 172; when the wiring harness connector needs to be pulled out of the connector, the locking key 17 is pressed, so that the second spring 18 is compressed, and the locking key 17 slides relative to the connector body 12 until the locking platform 172 is inserted into the locking groove 133. At this time, the connector body 12 is connected to the slider 13 as a rigid whole through the locking key 17. When the wiring harness connector is pulled out, the connector body 12 synchronously drives the slider 13 to move. Since there is no relative displacement between the connector body 12 and the slider 13, during the wiring harness connector removal process, the locking block 15 is squeezed by the locking protrusion 212 and overcomes the elastic force of the first spring 16 to retract until the wiring harness connector is pulled out from the insertion interface 211; after removal, the pressing of the locking key 17 is released, and the second spring 18 pushes the locking key 17 to reset, so that the locking platform 172 moves out of the locking groove 133, thereby releasing the rigid fit between the connector body 12 and the slider 13.

[0042] like Figure 5 As shown, in some embodiments of the wiring harness assembly of this embodiment, there are two second springs 18, and the two second springs 18 are arranged at intervals. In this embodiment, by providing two second springs 18, the locking key 17 is subjected to a more balanced force.

[0043] like Figures 5 to 7 As shown, in some embodiments of the wiring harness assembly of this embodiment, the locking key 17 is provided with an extension arm 171 at each end; the slider 13 is correspondingly provided with two sockets 132; and the ends of the two extension arms 171 are inserted into the two sockets 132 in a one-to-one correspondence. Through this arrangement, during the removal of the wiring harness connector, the locking key 17 of this embodiment strengthens the rigid connection strength between the slider 13 and the connector body 12, further ensuring the integrity of the slider 13 and the connector body 12 during the removal process, thereby ensuring reliable removal of the wiring harness connector.

[0044] In some embodiments of the wiring harness assembly of this embodiment, two third springs 23 are connected between each top plate 22 and the connector. In this embodiment, by providing two third springs 23, the movement of the top plate 22 is made more stable.

[0045] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. A wiring harness connector with high tensile strength, characterized in that: The invention comprises a wiring harness body and a connector body provided at one end of the wiring harness body; the connector body is provided with a first socket; a slider is slidably sleeved on the open end of the connector body; a tension spring is connected between the slider and the connector body; the slider has a second socket adapted to the first socket; The open end of the connector body is provided with two upper and lower corresponding driving rods; the second socket is provided with two upper and lower corresponding locking blocks for vertical sliding at its open position; a first spring is connected between each locking block and the slider; each locking block is penetrated by a driving hole; the two driving rods are penetrated through the two driving holes in a one-to-one correspondence; Tension springs are connected between the upper and lower sides of the slider and the joint body; The end of the locking block extending into the second socket is provided with an arc portion; A locking key is provided on the top surface of the connector body for vertical sliding movement; a second spring is connected between the locking key and the connector body; the slider is provided with an insertion hole; a locking groove is provided in the insertion hole; an extension arm extends from the locking key; the extension arm is movable through the connector body and then inserted into the insertion hole; a locking base is provided at the end of the extension arm and can be inserted into the locking groove; The two ends of the locking key are respectively provided with extension arms; the sliding block is correspondingly provided with two insertion holes; the ends of the two extension arms are inserted into the two insertion holes in a one-to-one correspondence.

2. A wiring harness connector with high tensile strength according to claim 1, characterized in that: Each locking block is connected to the slider with two first springs; the two first springs are spaced apart.

3. A wiring harness connector with high tensile strength according to claim 1, characterized in that: The driving hole includes a vertical section and an inclined section; one end of the vertical section is connected to one end of the inclined section.

4. A wiring harness connector with high tensile strength according to claim 1, characterized in that: There are two second springs, and the two second springs are arranged at an interval.

5. A wiring harness assembly, characterized in that: The invention comprises a connector and a wiring harness connector as described in any one of claims 1 to 4; the connector comprises a connector body having a plug interface; an inverted triangular locking boss is provided in the plug interface; the small end of the locking boss is away from the opening position of the plug interface; the inner wall of the plug interface is provided with a top plate which slides horizontally on the upper and lower sides of the locking boss; a third spring is connected between the top plate and the connector; the stiffness of the third spring is less than the stiffness of the first spring.

6. The wiring harness assembly according to claim 5, characterized in that: Two third springs arranged at intervals are connected between each of the top plates and the connector.

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