A dustproof and waterproof automotive wiring harness terminal

Abstract

The utility model discloses a kind of automobile wiring harness terminal with dustproof and waterproof effect, including terminal connector, wiring harness connector and shell, the terminal connector includes a plugging disk, docking disk and transmission line body, the surface of docking disk is arranged in a ring shape with multiple L-shaped grooves and multiple snap-in holes, the inner wall of shell is fixedly connected with mounting seat, the surface of mounting seat is provided with disc-shaped groove that can fit with docking disk, the inner wall of disc-shaped groove is respectively provided with multiple fixing blocks and multiple snap-in ball assemblies, and the fixing blocks can be slidably connected with the inner wall of L-shaped groove, and snap-in ball assemblies can fit with snap-in holes. The fixing block is inserted into L-shaped groove, and then the terminal connector is rotated to make the fixing block close to the bottom of the end of L-shaped groove, at this time, the snap-in ball assembly is used to fit with snap-in hole, so that the terminal connector can be effectively prevented from rotating, and the L-shaped groove and the fixing block are used to fit with each other, so that the terminal connector can be effectively prevented from falling off, the fixing effect is good, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring harness terminals, in particular to an automobile wiring harness terminal with dustproof and waterproof effects. Background Art

[0002] The automotive wiring harness is the network body of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the contact terminal made of copper material, which is crimped with wires and cables, and then plastic-pressed with an insulator or an additional metal shell, etc., to form a component connecting the circuit with the wiring harness. The terminal is an accessory product used to achieve electrical connection.

[0003] Through searching, CN215451871U was found, which is a field of automotive wiring harness terminal structure with dust-proof structure, including a device body, a base, and a terminal connector. A baffle is installed on the left side of the device body, a fixing bolt is installed inside the first bolt hole, the base is installed inside the device body, an extrusion plate is connected above the base, a first spring is installed in the middle part of the slider, a card block is installed above the terminal connector, and a slide groove is provided below the terminal connector, a button is connected above the card block, and a second spring is installed in the middle part of the button, a protrusion is provided on the right side of the device body, and a groove is installed on the left side of the device body, a fixing block is installed on the left side of the device body, and a second bolt hole is provided in the middle part of the fixing block, the device can be protected from dust by the baffle and the fixing bolt, and the wiring harness can be clamped by the baffle and the extrusion plate, which can effectively avoid the phenomenon of the wiring harness falling off due to external force.

[0004] However, there are still some problems and shortcomings in the use process:

[0005] First, the card block is prone to breakage after long-term use, which makes the terminal connector unable to connect and has a short service life; and the waterproof effect of the entire terminal is poor, so we need an automotive wiring harness terminal with dustproof and waterproof effects. Utility Model Content

[0006] The utility model aims to provide an automobile wiring harness terminal with dustproof and waterproof effects to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dustproof and waterproof automotive wiring harness terminal, comprising a terminal connector, a wiring harness connector and a shell, wherein the terminal connector is detachably mounted on the left side of the shell, and the wiring harness connector is detachably mounted on the right side of the shell, and the ends of the terminal connector and the wiring harness connector can fit together and snap together, the terminal connector comprises a blocking disk, a docking disk and a transmission line body, the blocking disk and the docking disk are both fixedly connected to the outer surface of the transmission line body, and the surface of the docking disk is annularly arranged with a plurality of L-shaped grooves and a plurality of snap-in holes, the inner wall of the shell is fixedly connected with a mounting seat, the surface of the mounting seat is provided with a disc-shaped groove that can fit together with the docking disk, the inner wall of the disc-shaped groove is respectively provided with a plurality of fixing blocks and a plurality of snap-in ball assemblies, and the fixing blocks can be slidably connected to the inner wall of the L-shaped groove, and the snap-in ball assemblies can fit together with the snap-in holes.

[0008] Preferably, the number of the L-shaped slots and the fixing blocks is the same, the number of the snap-in holes and the snap-in ball assemblies is the same, and the number of the L-shaped slots and the snap-in holes may be two, three or four.

[0009] Preferably, a cylindrical groove is formed on the inner wall of the disc-shaped groove, and the snap-in ball assembly includes a first spring and a movable ball head, the movable ball head is fixedly connected to the end of the first spring, and one end of the first spring away from the movable ball head is fixedly connected to the bottom of the cylindrical groove.

[0010] Preferably, a positioning screw hole is provided on the outer surface of the wiring harness connector, and a fixing bolt which can be threadedly connected to the positioning screw hole is threadedly connected to the lower surface of the shell.

[0011] Preferably, a clamping assembly is provided on both the upper and lower sides of the inner wall of the shell, and the clamping assembly includes a movable rod, an arc-shaped pressure plate, a second spring and a baffle. The movable rod is slidably connected to the upper and lower surfaces of the shell, the baffle is fixedly connected to the outer surface of the movable rod, the arc-shaped pressure plate is fixedly connected to the end of the movable rod, the second spring is sleeved on the outer surface of the movable rod, and the second spring is located between the baffle and the shell, and a protective rubber is fixedly connected to the inner side of the arc-shaped pressure plate.

[0012] Preferably, a first sealing ring is fixedly connected to the outer surface of the sealing disk, a sealing groove capable of cooperating with the first sealing ring is opened on the left side of the outer shell, a second sealing ring is fixedly connected to the outer surface of the wiring harness connector, and an access hole capable of cooperating with the second sealing ring is opened on the right side of the outer shell.

[0013] Preferably, the diameters of the first sealing ring, the second sealing ring, the sealing groove and the access hole at one end away from the shell are larger than the diameters at the other end close to the shell.

[0014] Beneficial Effects

[0015] The utility model provides an automobile wiring harness terminal with dustproof and waterproof effects, which has the following beneficial effects:

[0016] 1. The automotive wiring harness terminal with dustproof and waterproof effects replaces the clamping block in the prior art by arranging multiple L-shaped grooves, clamping holes, fixing blocks and clamping ball assemblies. First, the fixing block is clamped into the L-shaped groove, and then the terminal connector is rotated to make the fixing block close to the bottom of the end of the L-shaped groove. At this time, the clamping ball assembly is matched with the clamping hole to effectively prevent the terminal connector from rotating. The L-shaped groove and the fixing block are matched with each other to effectively prevent the terminal connector from falling off, thereby achieving the fixation of the terminal connector, and the fixing effect is good. Moreover, compared with the prior art, the service life is longer.

[0017] 2. The automotive wiring harness terminal with dustproof and waterproof effects can seal the left and right ends of the shell by setting a first sealing ring, a blocking groove, a second sealing ring and an access hole after the terminal connector and the wiring harness connector are connected on the inner side of the shell, thereby effectively preventing dust and water from entering the inside of the shell, so that the entire automotive wiring harness terminal has good dustproof and waterproof effects and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of an exploded cross-sectional structure of an automobile wiring harness terminal with dust and water-proof effects proposed by the utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of a terminal connector of a dustproof and waterproof automobile wiring harness terminal and a wiring harness connector after docking;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the shell of a dustproof and waterproof automobile wiring harness terminal proposed by the utility model;

[0021] Figure 4 The utility model is a schematic cross-sectional structure diagram of a mounting seat of an automobile wiring harness terminal with dust and water proof effects.

[0022] In the figure: 1. terminal connector; 2. wiring harness connector; 3. housing; 4. sealing disk; 5. docking disk; 6. transmission line body; 7. L-shaped groove; 8. snap-in hole; 9. mounting seat; 10. disc groove; 11. fixing block; 12. snap-in ball assembly; 13. cylindrical groove; 14. first spring; 15. movable ball head; 16. positioning screw hole; 17. fixing bolt; 18. movable rod; 19. arc pressure plate; 20. second spring; 21. baffle; 22. protective rubber; 23. first sealing ring; 24. sealing groove; 25. second sealing ring; 26. access hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a dustproof and waterproof automotive wiring harness terminal, comprising a terminal connector 1, a wiring harness connector 2 and a shell 3, the terminal connector 1 can be detachably installed on the left side of the shell 3, the wiring harness connector 2 can be detachably installed on the right side of the shell 3, and the ends of the terminal connector 1 and the wiring harness connector 2 can fit and snap together, the terminal connector 1 comprises a blocking disk 4, a docking disk 5 and a transmission line body 6, the blocking disk 4 and the docking disk 5 are fixedly connected to the outer surface of the transmission line body 6, and the surface of the docking disk 5 is annularly arranged with a plurality of L-shaped grooves 7 and a plurality of snap-in holes 8, the inner wall of the shell 3 is fixedly connected with a mounting seat 9, the surface of the mounting seat 9 is provided with a disc-shaped groove 10 that can fit together with the docking disk 5, the inner wall of the disc-shaped groove 10 is respectively provided with a plurality of fixing blocks 11 and a plurality of snap-in ball assemblies 12, and the fixing block 11 can be with the L-shaped groove 7 is slidably connected to the inner wall, and the snap-in ball assembly 12 can fit with the snap-in hole 8. The number of L-shaped grooves 7 and fixing blocks 11 is the same, and the number of snap-in holes 8 and snap-in ball assemblies 12 is the same, and the number of L-shaped grooves 7 and snap-in holes 8 can be two, three or four. By arranging multiple L-shaped grooves 7, snap-in holes 8, fixing blocks 11 and snap-in ball assemblies 12 to replace the snap-in blocks in the prior art, first, the fixing block 11 is inserted into the L-shaped groove 7, and then the terminal connector 1 is rotated to make the fixing block 11 press against the bottom of the end of the L-shaped groove 7. At this time, the snap-in ball assembly 12 fits with the snap-in hole 8, which can effectively prevent the terminal connector 1 from rotating, and the L-shaped groove 7 and the fixing block 11 fit each other, which can effectively prevent the terminal connector 1 from falling off, thereby achieving the fixation of the terminal connector 1, and the fixing effect is good, and compared with the prior art, the service life is longer.

[0025] A cylindrical groove 13 is formed on the inner wall of the disc-shaped groove 10, and the snap-in ball assembly 12 includes a first spring 14 and a movable ball head 15. The movable ball head 15 is fixedly connected to the end of the first spring 14, and one end of the first spring 14 away from the movable ball head 15 is fixedly connected to the bottom of the cylindrical groove 13. When the docking plate 5 is inserted into the disc-shaped groove 10, the movable ball head 15 is squeezed and pressed into the cylindrical groove 13 together with the first spring 14. By rotating the terminal connector 1, when the fixed block 11 is pressed against the bottom of the end of the L-shaped groove 7, the movable ball head 15 will extend and reset under the elastic force of the first spring 14, so that the movable ball head 15 can be snapped into the snap-in hole 8.

[0026] A positioning screw hole 16 is provided on the outer surface of the wiring harness connector 2, and a fixing bolt 17 which can be threadedly connected to the positioning screw hole 16 is threadedly connected to the lower surface of the housing 3. By screwing the fixing bolt 17 into the positioning screw hole 16, the wiring harness connector 2 can be fixed, thereby preventing the wiring harness connector 2 from falling off.

[0027] A clamping assembly is provided on both the upper and lower sides of the inner wall of the shell 3, and the clamping assembly includes a movable rod 18, an arc-shaped pressure plate 19, a second spring 20 and a baffle 21. The movable rod 18 is slidably connected to the upper and lower surfaces of the shell 3, the baffle 21 is fixedly connected to the outer surface of the movable rod 18, the arc-shaped pressure plate 19 is fixedly connected to the end of the movable rod 18, the second spring 20 is sleeved on the outer surface of the movable rod 18, and the second spring 20 is located between the baffle 21 and the shell 3, and a protective rubber 22 is fixedly connected to the inner side of the arc-shaped pressure plate 19. By arranging the movable rod 18, the arc-shaped pressure plate 19, the second spring 20 and the baffle 21, and using the second spring 20 to apply elastic force to the baffle 21, the arc-shaped pressure plate 19 can be pressed against the outer side of the wiring harness connector 2, thereby improving the docking and fixing effect of the terminal connector 1 and the wiring harness connector 2, and by arranging the protective rubber 22, the connection between the terminal connector 1 and the wiring harness connector 2 can be effectively prevented from being damaged.

[0028] A first sealing ring 23 is fixedly connected to the outer surface of the sealing disk 4, a sealing groove 24 that can cooperate with the first sealing ring 23 is opened on the left side of the shell 3, a second sealing ring 25 is fixedly connected to the outer surface of the wiring harness connector 2, and an access hole 26 that can fit with the second sealing ring 25 is opened on the right side of the shell 3. The diameter of the first sealing ring 23, the second sealing ring 25, the sealing groove 24 and the access hole 26 away from the shell 3 is larger than the diameter of the end close to the shell 3. When the terminal connector 1 and the wiring harness connector 2 are connected to the inner side of the shell 3, the left and right ends of the shell 3 can be sealed by setting the first sealing ring 23, the sealing groove 24, the second sealing ring 25 and the access hole 26, thereby effectively preventing dust and water from entering the interior of the shell 3, so that the entire automotive wiring harness terminal has good dust and waterproof effects, and improves practicality.

[0029] Working principle: When the automotive wiring harness terminal with dustproof and waterproof effect is to be docked and installed, firstly, the movable rods 18 on the upper and lower sides need to be pulled, and the baffle 21 is driven by the movable rods 18 to compress the second spring 20, and the two arc-shaped pressing plates 19 will move away from each other. Then, the terminal connector 1 is inserted from the left side of the housing 3, so that the docking disc 5 fits with the disc-shaped groove 10 on the surface of the mounting seat 9, and the fixing block 11 is slid into the L-shaped groove 7, and then the wiring harness connector 2 is inserted from the right side of the housing 3, and then the movable rod 18 is released. Under the elastic force of the second spring 20, the arc-shaped pressing plates 19 are moved away from each other. The pressure plate 19 will press against the connection between the transmission line body 6 and the wiring harness connector 2, and then the fixing bolt 17 will be screwed into the positioning screw hole 16 to fix the wiring harness connector 2, and then the terminal connector 1 is rotated to make the fixing block 11 press against the bottom end of the L-shaped groove 7. At this time, the snap-in ball assembly 12 is matched with the snap-in hole 8, which can effectively prevent the terminal connector 1 from rotating. The L-shaped groove 7 and the fixing block 11 are matched with each other, which can effectively prevent the terminal connector 1 from falling off, thereby achieving the fixation of the terminal connector 1, and the fixing effect is good, and compared with the prior art, the service life is longer.

[0030] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A dustproof and waterproof automotive wiring harness terminal, comprising a terminal connector (1), a wiring harness connector (2) and a housing (3), characterized in that: The terminal connector (1) is detachably mounted on the left side of the housing (3), the wiring harness connector (2) is detachably mounted on the right side of the housing (3), and the ends of the terminal connector (1) and the wiring harness connector (2) can be mutually engaged and snap-fitted, the terminal connector (1) comprises a blocking disk (4), a docking disk (5) and a transmission line body (6), the blocking disk (4) and the docking disk (5) are both fixedly connected to the outer surface of the transmission line body (6), and the surface of the docking disk (5) is provided with a plurality of circular openings arranged in a row. There are a plurality of L-shaped grooves (7) and a plurality of snap-in holes (8); the inner wall of the housing (3) is fixedly connected with a mounting seat (9); a surface of the mounting seat (9) is provided with a disc-shaped groove (10) that can fit with the docking plate (5); the inner wall of the disc-shaped groove (10) is respectively provided with a plurality of fixing blocks (11) and a plurality of snap-in ball assemblies (12); the fixing blocks (11) can be slidably connected with the inner wall of the L-shaped groove (7); and the snap-in ball assemblies (12) can fit with the snap-in holes (8).

2. The automotive wiring harness terminal with dustproof and waterproof effects according to claim 1, characterized in that: The number of the L-shaped grooves (7) and the fixing blocks (11) is the same, the number of the snap-in holes (8) and the snap-in ball assemblies (12) is the same, and the number of the L-shaped grooves (7) and the snap-in holes (8) can be two, three or four.

3. The automotive wiring harness terminal with dustproof and waterproof effects according to claim 2, characterized in that: The inner wall of the disc-shaped groove (10) is provided with a columnar groove (13), and the clamping ball assembly (12) comprises a first spring (14) and a movable ball head (15), wherein the movable ball head (15) is fixedly connected to the end of the first spring (14), and one end of the first spring (14) away from the movable ball head (15) is fixedly connected to the bottom of the columnar groove (13).

4. The automotive wiring harness terminal with dustproof and waterproof effects according to claim 1, characterized in that: The outer surface of the wiring harness connector (2) is provided with a positioning screw hole (16), and the lower surface of the housing (3) is threadedly connected with a fixing bolt (17) that can be threadedly connected to the positioning screw hole (16).

5. The automotive wiring harness terminal with dustproof and waterproof effects according to claim 1, characterized in that: The upper and lower sides of the inner wall of the shell (3) are provided with a clamping assembly, which comprises a movable rod (18), an arc-shaped pressure plate (19), a second spring (20) and a baffle (21); the movable rod (18) is slidably connected to the upper and lower surfaces of the shell (3); the baffle (21) is fixedly connected to the outer surface of the movable rod (18); the arc-shaped pressure plate (19) is fixedly connected to the end of the movable rod (18); the second spring (20) is sleeved on the outer surface of the movable rod (18), and the second spring (20) is located between the baffle (21) and the shell (3); and a protective rubber (22) is fixedly connected to the inner side of the arc-shaped pressure plate (19).

6. The automotive wiring harness terminal with dustproof and waterproof effects according to claim 1, characterized in that: A first sealing ring (23) is fixedly connected to the outer surface of the sealing disk (4); a sealing groove (24) capable of cooperating with the first sealing ring (23) is provided on the left side of the housing (3); a second sealing ring (25) is fixedly connected to the outer surface of the wiring harness connector (2); and an access hole (26) capable of cooperating with the second sealing ring (25) is provided on the right side of the housing (3).

7. The automotive wiring harness terminal with dustproof and waterproof effects according to claim 6, characterized in that: The diameter of the first sealing ring (23), the second sealing ring (25), the blocking groove (24) and the access hole (26) at one end away from the outer shell (3) is larger than the diameter of the end close to the outer shell (3).

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