High-reliability automobile high-speed wire harness connection terminal

Abstract

The utility model discloses a high reliability automobile high -speed wire harness connecting terminal belongs to electric connector technical field, this terminal includes wire pressing mechanism and locking mechanism, wire pressing mechanism includes binding post, the lower clamp seat fixed in the bottom of binding post wire pressing groove, and the upper clamp seat slidingly fitted in wire pressing groove, locking mechanism includes male head and female head, the upper surface of lower clamp seat with the lower surface of upper clamp seat respectively correspond to set up first crimping groove and second crimping groove, the both sides fixed mounting of upper clamp seat has side elastic clamping plate, the inside wall on the both sides of binding post is seted up side triangle clamping groove, and side triangle clamping groove with side elastic clamping plate elasticity cooperates, the utility model discloses through first, second crimping groove realizes to the double crimping of wire harness metal wire and insulating layer, and realizes crimping self -locking through the cooperation of side elastic clamping plate and side triangle clamping groove, has solved the problem that wire harness is loose because of vibration, and the problem of bad contact.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a high-reliability automotive high-speed wiring harness connection terminal. Background Technology

[0002] Automotive wiring harness connectors are key components in modern automotive electronic systems, responsible for transmitting power and high-speed data signals in the complex in-vehicle environment. During operation, vehicles experience continuous and intense vibrations, shocks, and drastic temperature fluctuations, placing extremely stringent requirements on the mechanical stability of the connectors and the long-term reliability of the electrical connections.

[0003] In existing technologies, the connection between wire harnesses and terminals is usually achieved through a crimping structure. However, many conventional crimping designs focus primarily on achieving good electrical contact between the conductor's metal core and the terminal, using crimping to deform and tightly fit the metal core.

[0004] This design often neglects the effective fixation and stress relief of the wire insulation. Under the continuous vibration of a car, because only the metal core is tightly fixed, while the insulation layer of the harness lacks equal gripping force, the entire harness is prone to slight axial movement or radial loosening under external force or vibration.

[0005] This unstable mechanical state concentrates all the vibration stress on the fragile metal wire core crimping point, which can easily accelerate metal fatigue at that point. Over time, this can lead to increased contact resistance, unstable signal transmission, and even, in extreme cases, wire core fatigue fracture, causing connection failure and directly threatening the vehicle's driving safety and functional reliability.

[0006] Therefore, this utility model proposes a high-reliability automotive high-speed wiring harness connection terminal to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a high-reliability automotive high-speed wiring harness connection terminal, which aims to improve the problems of existing connection terminals, such as wires being prone to loosening and poor contact under vibration due to their simple crimping structure, and insufficient reliability of male and female head locking.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-reliability automotive high-speed wiring harness connection terminal, comprising a wire clamping mechanism and a locking mechanism; the wire clamping mechanism includes a terminal block, a lower clamp fixed to the bottom of the wire clamping groove inside the terminal block, and an upper clamp slidably fitted in the wire clamping groove and located above the lower clamp; the locking mechanism includes a male connector and a female connector suitable for insertion; the wire clamping mechanism is integrated with the male connector or the female connector.

[0009] The upper surface of the lower clamp and the lower surface of the upper clamp are respectively provided with a first pressing groove and a second pressing groove; side elastic clamping plates are fixedly installed on both sides of the upper clamp.

[0010] Furthermore, the inner walls on both sides of the terminal block are provided with side triangular slots, which are combined with the side elastic plate through elastic engagement to lock the position of the upper clamp.

[0011] Preferably, the pressing mechanism further includes a push rod connected above the upper clamp, the top end of the push rod being fixed with a pressure plate for driving the upper clamp to move downward.

[0012] Preferably, the wire clamping mechanism further includes a tension spring connected between the top of the upper clamp and the terminal block, for automatically resetting the upper clamp.

[0013] Preferably, both the inner walls of the first crimping groove and the inner walls of the second crimping groove are provided with anti-slip ridges to increase the friction during crimping.

[0014] Preferably, the male connector has a U-shaped groove at its top, a U-shaped spring plate is installed inside the U-shaped groove, and a triangular locking block is fixed on the U-shaped spring plate; the female connector has a locking slot on its top inner wall, which is adapted to engage with the triangular locking block to achieve mechanical locking of the male and female connectors.

[0015] Preferably, a pressure rod is fixedly installed on the U-shaped spring plate to assist in the deformation of the U-shaped spring plate to achieve unlocking.

[0016] Preferably, the male connector has guide grooves on both sides; the female connector has guide sliders fixed on the inner walls of both sides, and the guide sliders slide in the guide grooves to achieve precise guidance during the insertion process.

[0017] Preferably, the outer wall of the terminal block is provided with a wire inlet hole, which is adapted to allow the wire harness to pass through and enter the wire pressing groove.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting a lower clamp and an upper clamp, and respectively opening a first crimping groove for crimping the metal wire and a second crimping groove for crimping the insulation layer on both, a double crimping of the wire harness is achieved. At the same time, by setting a side elastic clamping plate that is linked with the upper clamp and elastically engaging with the side triangular clamping groove on the inner wall of the terminal block, the problems of easy loosening and poor contact of the wire harness under vibration caused by only fixing the metal wire in the prior art, and the crimping mechanism itself being easy to loosen due to vibration, are solved. The present invention achieves the technical effects of firm crimping, strong vibration resistance, reliable self-locking in the crimping state, and long-term stable electrical performance.

[0019] 2. In this utility model, by setting a triangular locking block driven by a U-shaped spring plate on the male end, which elastically engages with the locking groove on the inner wall of the female end, and by setting mutually cooperating guide grooves and guide sliders on the male and female ends, the problems of existing connectors being prone to loosening and separation during vehicle vibration, and being prone to misalignment and difficulty in insertion due to shaking during docking are solved. The technical effects of smooth insertion and removal, precise guidance, mechanical self-locking after docking, stable connection, and vibration resistance and anti-detachment are achieved. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a high-reliability automotive high-speed wiring harness connection terminal proposed in this utility model; Figure 2 This is a schematic diagram of the terminal block structure of a high-reliability automotive high-speed wiring harness connection terminal proposed in this utility model; Figure 3 This is a schematic diagram of the male connector portion of a high-reliability automotive high-speed wiring harness connection terminal proposed in this utility model; Figure 4 This is a schematic diagram of the lower clamp portion of a high-reliability automotive high-speed wiring harness connection terminal proposed in this utility model. Figure 5 This is a schematic diagram of the first crimping groove portion of a high-reliability automotive high-speed wiring harness connection terminal proposed in this utility model.

[0021] Legend: 1. Wire clamping mechanism; 101. Terminal block; 102. Wire clamping groove; 103. Lower clamp; 104. Upper clamp; 105. Push rod; 106. Tension spring; 107. Pressure plate; 108. Side elastic retaining plate; 2. Locking mechanism; 201. Male connector; 202. U-shaped groove; 203. U-shaped spring plate; 204. Triangular locking block; 205. Pressure rod; 3. Female connector; 4. Side triangular retaining groove; 5. First crimping groove; 6. Second crimping groove; 7. Wire inlet hole; 8. Guide groove; 9. Guide slider; 10. Wire harness. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figures 1 to 5This utility model provides a high-reliability automotive high-speed wiring harness connection terminal, which aims to solve the problems of existing connection terminals having simple crimping structures that cause wires to loosen easily under vibration, poor contact, and insufficient reliability of male and female head locking.

[0024] The high-reliability automotive high-speed wiring harness connector includes a crimping mechanism 1 and a locking mechanism 2. The crimping mechanism 1 is used to crimp and fix the wiring harness 10, and the locking mechanism 2 is used to lock the male connector 201 and the female connector 3 together.

[0025] The main structure of the wire pressing mechanism 1 is a terminal block 101. A wire pressing groove 102 is provided inside the terminal block 101. A lower clamp 103 is fixed at the bottom of the wire pressing groove 102. An upper clamp 104 is slidably fitted inside the wire pressing groove 102 and is located above the lower clamp 103.

[0026] The locking mechanism 2 includes a male connector 201 and a female connector 3, which are suitable for insertion. The wire clamping mechanism 1 is integrated with either the male connector 201 or the female connector 3.

[0027] To achieve double crimping of wire harness 10, such as Figure 4 As shown, the upper surface of the lower clamp 103 and the lower surface of the upper clamp 104 are respectively provided with a first crimping groove 5 and a second crimping groove 6. The first crimping groove 5 is used to crimp the metal wire part of the wire harness 10, and the second crimping groove 6 is used to crimp the insulation layer part of the wire harness 10. In order to enhance the crimping firmness, anti-slip ridges are provided on the inner wall of the first crimping groove 5 and the inner wall of the second crimping groove 6.

[0028] To achieve self-locking after crimping, side elastic plates 108 are fixedly installed on both sides of the upper clamp 104. Correspondingly, side triangular grooves 4 are provided on the inner walls of both sides of the terminal block 101. The side elastic plates 108 and the side triangular grooves 4 are elastically engaged. When the upper clamp 104 moves downward, the side elastic plates 108 can be elastically engaged in the side triangular grooves 4.

[0029] To drive the upper clamp 104 to move, the wire pressing mechanism 1 includes a push rod 105 connected above the upper clamp 104, and a pressure plate 107 is fixed to the top of the push rod 105.

[0030] To achieve automatic reset of the upper clamp 104, the wire pressing mechanism 1 includes a tension spring 106, which is connected to the top of the upper clamp 104 and the terminal block 101.

[0031] To guide the wire harness 10, the outer wall of the terminal block 101 is provided with a wire inlet hole 7, which is suitable for the wire harness 10 to pass through.

[0032] The core component of the locking mechanism 2 is the fit between the male head 201 and the female head 3. The top of the male head 201 is provided with a U-shaped groove 202. A U-shaped spring plate 203 is installed inside the U-shaped groove 202. A triangular locking block 204 is fixedly installed on the outside of the U-shaped spring plate 203. In order to realize the unlocking operation, a pressure rod 205 is also fixedly installed on the U-shaped spring plate 203. The pressure rod 205 is suitable for passing through the wall of the male head 201.

[0033] In conjunction with the male connector 201, the top inner wall of the female connector 3 is provided with a locking groove, the shape and position of which correspond to the triangular locking block 204.

[0034] In the assembled state, when the male head 201 is inserted into the female head 3, the inclined surface of the triangular locking block 204 will contact and be pressed against the inner wall of the female head 3, causing the U-shaped spring plate 203 to retract into the U-shaped groove 202. When the male head 201 is inserted into the correct position, the triangular locking block 204 moves to the position of the locking slot, the U-shaped spring plate 203 elastically resets, and drives the triangular locking block 204 to engage in the locking slot, thereby achieving mechanical self-locking between the male head 201 and the female head 3.

[0035] The male connector 201 has guide grooves 8 on both sides, and the female connector 3 has guide sliders 9 fixed on both sides of the inner wall. The guide sliders 9 and the guide grooves 8 are in a sliding fit relationship. This guide structure ensures the stability of the male connector 201 and the female connector 3 during the insertion process and avoids misalignment.

[0036] In a preferred embodiment, to drive the upper clamp 104, the wire pressing mechanism 1 includes a push rod 105 and a pressure plate 107. The bottom end of the push rod 105 is connected to the top of the upper clamp 104, and the pressure plate 107 is fixed to the top end of the push rod 105. In a preferred embodiment, to achieve automatic reset of the upper clamp 104, the wire pressing mechanism 1 includes a tension spring 106, which is connected to the top of the upper clamp 104 and the terminal block 101. As a preferred embodiment, in order to increase the crimping friction and prevent the wire harness 10 from slipping, anti-slip ridges are provided on the inner walls of the first crimping groove 5 and the second crimping groove 6. In a preferred embodiment, to achieve mechanical locking between the male connector 201 and the female connector 3, a U-shaped groove 202 is provided on the top of the male connector 201, a U-shaped spring plate 203 is installed inside the U-shaped groove 202, and a triangular locking block 204 is fixed on the U-shaped spring plate 203. Correspondingly, a locking slot is provided on the inner wall of the top of the female connector 3, and the locking slot is suitable for engaging with the triangular locking block 204. Based on the above-mentioned locking mechanism 2, as a more preferred embodiment, in order to facilitate the application of unlocking force to the U-shaped spring plate 203, a pressure rod 205 is fixedly installed on the U-shaped spring plate 203, and the pressure rod 205 is adapted to pass through the wall surface of the male head 201; As another preferred embodiment, in order to improve the docking accuracy between the male connector 201 and the female connector 3, guide grooves 8 are provided on both sides of the male connector 201. Correspondingly, guide sliders 9 are fixed on the inner walls of both sides of the female connector 3, and the guide sliders 9 slide in cooperation with the guide grooves 8. In a preferred embodiment, in order to guide the wire harness 10 into the wire pressing mechanism 1, the outer wall of the terminal block 101 is provided with a wire inlet hole 7, which is connected to the wire pressing groove 102 and is suitable for the wire harness 10 to pass through.

[0037] Working principle: When crimping the wire harness 10, firstly, the wire harness 10 is passed through the inlet hole 7 on the outer wall of the connector 101, so that the metal wire portion of the wire harness 10 falls into the first crimping groove 5 of the lower clamp 103, and at the same time, the insulation layer portion of the wire harness 10 falls into the second crimping groove 6 of the lower clamp 103. At this time, the upper clamp 104 is located at the top of the crimping groove 102 under the tension of the tension spring 106. Then, the pressure plate 107 fixed to the top of the push rod 105 is pressed down. The pressure plate 107 drives the upper clamp 104 to slide down along the crimping groove 102 through the push rod 105. The first crimping groove 5 and the second crimping groove 6 of the upper clamp 104 move down accordingly and respectively engage with the lower clamp 103. The first crimping groove 5 and the second crimping groove 6 of 03 are combined to press the wire harness 10. The anti-slip ridges on the inner wall of the crimping groove increase the crimping friction. When the upper clamp 104 moves into position, the side elastic plates 108 fixed on both sides of the upper clamp 104 slide to the side triangular slots 4 opened on both sides of the terminal block 101. Under the action of elasticity, the side elastic plates 108 are inserted into the side triangular slots 4, realizing the reliable locking of the upper clamp 104 in the pressed state. When it is necessary to remove the wire harness 10, the two side elastic plates 108 are pried outward to disengage them from the side triangular slots 4. The upper clamp 104 is then reset and moved upward under the action of the tension spring 106, releasing the clamping of the wire harness 10. When it is necessary to assemble the male connector 201 and the female connector 3, align the male connector 201 with the female connector 3, so that the guide sliders 9 fixed on both sides of the inner wall of the female connector 3 are aligned with the guide grooves 8 opened on both sides of the male connector 201, pushing the male connector 201 into the female connector 3; under the sliding cooperation of the guide sliders 9 and the guide grooves 8, the male connector 201 is stably inserted. During the insertion process, the top inner wall of the female connector 3 will squeeze the inclined surface of the triangular locking block 204 on the U-shaped spring plate 203, driving the U-shaped spring plate 203 to shrink and deform into the U-shaped groove 202 at the top of the male connector 201; when the male connector 201... 1. After insertion, the triangular locking block 204 moves to the locking groove on the inner wall of the top of the female head 3. The U-shaped spring plate 203 resets under elastic action, causing the triangular locking block 204 to engage in the locking groove, thereby achieving mechanical locking between the male head 201 and the female head 3. When it is necessary to separate the male head 201 and the female head 3, press the pressure rod 205 on the U-shaped spring plate 203. The pressure rod 205 causes the U-shaped spring plate 203 to retract into the U-shaped groove 202, so that the triangular locking block 204 disengages from the locking groove on the female head 3, and the male head 201 can be pulled out.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-reliability automotive high-speed wiring harness connection terminal, comprising a wire clamping mechanism (1) and a locking mechanism (2). The wire pressing mechanism (1) includes: Terminal block (101), wherein a wire pressing groove (102) is provided inside the terminal block (101); The lower clamp (103) is fixed to the bottom of the wire pressing groove (102); Upper clamp (104), which is slidably fitted in the wire pressing groove (102) and located above the lower clamp (103); The locking mechanism (2) includes a male head (201) and a female head (3); The wire pressing mechanism (1) is integrated with the male connector (201) or the female connector (3) as one unit, characterized in that: The upper surface of the lower clamp (103) and the lower surface of the upper clamp (104) are respectively provided with a first crimping groove (5) and a second crimping groove (6). Side elastic plates (108) are fixedly installed on both sides of the upper clamp (104). Side triangular grooves (4) are provided on the inner walls of both sides of the terminal block (101). The side triangular grooves (4) are elastically engaged with the side elastic plates (108).

2. The high-reliability automotive high-speed wiring harness connection terminal according to claim 1, characterized in that, The pressing mechanism (1) includes a push rod (105) connected above the upper clamp (104), and a pressure plate (107) is fixed to the top of the push rod (105).

3. The high-reliability automotive high-speed wiring harness connection terminal according to claim 1, characterized in that, The wire pressing mechanism (1) includes a tension spring (106) which is connected to the top of the upper clamp (104) and the terminal block (101).

4. The high-reliability automotive high-speed wiring harness connection terminal according to claim 1, characterized in that, The inner wall of the first crimping groove (5) and the inner wall of the second crimping groove (6) are both provided with anti-slip ridges.

5. A high-reliability automotive high-speed wiring harness connection terminal according to claim 1, characterized in that, The male head (201) has a U-shaped groove (202) on its top, and a U-shaped spring plate (203) is installed inside the U-shaped groove (202). A triangular locking block (204) is fixed on the U-shaped spring plate (203). The female head (3) has a locking groove on its top inner wall, and the locking groove is suitable for engaging with the triangular locking block (204).

6. A high-reliability automotive high-speed wiring harness connection terminal according to claim 5, characterized in that, A pressure rod (205) is fixedly installed on the U-shaped spring plate (203).

7. A high-reliability automotive high-speed wiring harness connection terminal according to claim 5, characterized in that, The male head (201) has guide grooves (8) on both sides; the female head (3) has guide sliders (9) fixed on the inner walls of both sides, and the guide sliders (9) slide in the guide grooves (8).

8. A high-reliability automotive high-speed wiring harness connection terminal according to claim 1, characterized in that, The outer wall of the terminal block (101) is provided with a wire inlet hole (7), which is suitable for the wire harness (10) to pass through.

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