Wire harness connector for automobile

Abstract

The invention discloses an automobile wire harness connector which is high in integration level, good in waterproof performance and easy to plug and unplug. According to the technical scheme, the wiring harness comprises a wiring harness socket and a wiring harness plug matched with the wiring harness socket in an inserted mode, the wiring harness plug comprises a plug shell and a plug insertion core integrally formed in the plug shell, and at least one set of power supply jack terminals and a set of signal jack terminals are arranged in the plug insertion core. The wire harness socket comprises a socket shell, a group of power supply pin terminals and a group of signal pin terminals, the group of power supply pin terminals and the group of signal pin terminals are arranged at the bottom of the socket shell, the upper end of the socket shell is provided with a socket insertion cavity matched with the plug insertion core, and the two sides of the plug shell are provided with plug-in power-assisted handles through handle insertion grooves. The pluggable power-assisted handle comprises a handle and guide rails integrally formed at the two ends of the handle, and at least two connecting shafts arranged at intervals are arranged on the inner sides of the guide rails.

Description

Technical Field

[0001] The invention belongs to the field of connectors, and in particular relates to a wiring harness connector for an automobile. Background Art

[0002] The automotive wiring harness connector is an important component used to connect various electrical and electronic components in the automotive circuit. It is usually composed of terminals, housings, fixing frames, sealing parts and locking parts. With the rapid development of new energy vehicles, wiring harness connectors are also widely used in new energy vehicles. Since the number of power wires and signal wires in new energy vehicles is far greater than that of traditional vehicles, and the wiring harnesses connected by traditional automotive wiring harness connectors are fewer and single, many connectors are required to complete the connection, which is not only troublesome to connect, but also confusing and prone to errors. In response to the above problems, the Chinese invention patent with the authorization announcement number "CN 109980394B" and the name "A wiring harness assembly connector and wiring harness assembly" has a solution: by integrating multiple power harness connectors and signal harness connectors on the socket. Although this solution is convenient for wiring at the user end, it is more troublesome to produce and assemble at the production end, and the cost is high, and the waterproof performance is poor. In addition: since many connectors are integrated into one housing, the plug-in resistance of the connector is large, and it is difficult for users to plug and unplug directly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a wiring harness connector for automobiles which has high integration, good waterproof performance and is easy to plug and unplug.

[0004] To solve the above problems, the technical solution adopted by the present invention includes: a wiring harness socket and a wiring harness plug that is plugged into and matched with the wiring harness socket, characterized in that: the wiring harness plug includes a plug shell, a plug core integrally formed in the plug shell, at least one group of power jack terminals and one group of signal jack terminals are provided in the plug core, the wiring harness socket includes a socket shell and a group of power pin terminals and a group of signal pin terminals arranged at the bottom of the socket shell, the upper end of the socket shell is provided with a socket cavity adapted to the plug core, and plug-in power-assisting handles are provided on both sides of the plug shell through handle slots, the plug-in power-assisting handles include a handle and guide rails integrally formed at both ends of the handle, at least two spaced connecting shafts are provided on the inner side of the guide rail, oblique grooves adapted to the connecting shafts are provided on both sides of the upper end of the socket shell, and an opening for the connecting shaft to be installed is provided at the rear end of the oblique groove.

[0005] The automotive wiring harness connector is characterized in that: the front end of the guide rail is provided with a first elastic positioning buckle, and the rear end is provided with a second elastic positioning buckle, the free end of the first elastic positioning buckle is provided with a raised first clamping portion, and the free end of the second elastic positioning buckle is provided with a raised second clamping portion, the front end of the first clamping portion is provided with a first inclined surface, and the rear end is provided with a first vertical surface, and the front and rear ends of the second clamping portion are provided with arc surfaces with smooth transitions, the front end of the handle slot is provided with a first clamping slot, the middle part is provided with a second clamping slot, and the rear end is provided with a third clamping slot, the rear end of the first clamping slot is provided with a second inclined surface, and the rear ends of the second and third clamping slots are both provided with second vertical surfaces.

[0006] The automotive wiring harness connector is characterized in that the lower end surface of the plug housing is provided with a first through hole, a second through hole and a third through hole respectively connected to the first card slot, the second card slot and the third card slot.

[0007] The automotive wiring harness connector is characterized in that the inclined slot 16 has an inclination angle of 10°-15°, and at least one of the inclined slots 16 has a horizontally arranged arc-shaped positioning slot 33 at its front end.

[0008] The automotive wiring harness connector is characterized in that: a flange is integrally formed on the upper end of the socket shell, and an inverted buckle is provided above the corresponding flange, a first sealing ring is installed through the flange, a C-shaped bayonet connected to the flange is provided at the lower end of the first sealing ring, and an outward-turned sealing edge is provided at the upper end, the sealing edge consists of a first sealing edge and a second sealing edge, the first sealing edge is higher than the second sealing edge and thinner than the second sealing edge, and a second sealing ring is provided at the end of the plug core.

[0009] The automotive wiring harness connector is characterized in that a reinforced positioning block is integrally formed at the angle between the handle and the guide rail, and a positioning groove adapted to the reinforced positioning block is provided at the end of the plug shell.

[0010] The automotive wiring harness connector is characterized in that an outer sheath is provided on the plug core, and the outer sheath is connected to the plug core through a group of elastic hooks on the side wall.

[0011] The automotive wiring harness connector is characterized in that a labor-saving lever is hinged on the handle of the plug-in power-assisting handle, and the labor-saving lever includes a power arm and a resistance arm. A hinge shaft as a fulcrum is provided between the power arm and the resistance arm, and the power arm is longer than the resistance arm.

[0012] The automotive wiring harness connector is characterized in that the top of the resistance arm is provided with an arc-shaped pressure surface acting on the plug housing.

[0013] The automotive wiring harness connector is characterized in that when the plug-in power-assisting handle is pulled out and the first clamping portion is clamped into the second clamping slot, the signal jack terminal and the power jack terminal are completely separated from the signal pin terminal and the power pin terminal respectively, and the signal jack terminal is disconnected before the power jack terminal.

[0014] The advantages of the automotive wiring harness connector of the present invention are as follows: 1. By integrally forming a plug core in a plug shell, directly plugging the power jack terminal and the signal jack terminal into the plug core, and finally directly plugging the power pin terminal and the signal pin terminal into the bottom of the socket shell, it has the advantages of high integration, good strength, and easy production and assembly; 2. By arranging a plug-in power-assisting handle on the plug shell, it is convenient to quickly plug and unplug the wiring harness plug and the wiring harness socket; 3. The plug-in power-assisting handle not only occupies less space, but also realizes multi-point plug-in and pull-out force through at least two connecting shafts, so that a longer harness connector can be stably plugged and unplugged.

[0015] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the automotive wiring harness connector of the present invention; Figure 2 It is a structural schematic diagram of the wiring harness plug of the present invention; Figure 3 is an exploded view of the wiring harness plug of the present invention; Figure 4 is a cross-sectional view of the wiring harness socket of the present invention; Figure 5 It is a schematic structural diagram of the socket housing of the present invention; Figure 6 is a cross-sectional view of the plug housing of the present invention; Figure 7 is a cross-sectional view of the wiring harness plug of the present invention; Figure 8 It is a structural schematic diagram of the plug-in power-assisting handle of the present invention; Fig. 9 yes Figure 7 A magnified image of point A; Fig.10 yes Figure 7 A magnified view of point B; Fig.11 yes Figure 7 Enlarged view of point C; Fig.12 It is a cross-sectional view of the first sealing ring of the present invention. DETAILED DESCRIPTION

[0017] Reference Figure 1-12As shown, the automotive wiring harness connector of the present invention comprises a wiring harness socket 1 and a wiring harness plug 2 which is plugged and matched with the wiring harness socket 1. The wiring harness plug 2 comprises a plug housing 3 and a plug core 4 which is integrally formed in the plug housing 3. The plug core 4 is plugged with a group of power jack terminals 5 and a group of signal jack terminals 6 through a terminal cavity. The wiring harness socket 1 comprises a socket housing 7 and a group of power pin terminals 8 and a group of signal pin terminals 9 which are plugged into the bottom of the socket housing 7. Note: For the sake of clarity, only one of each terminal is drawn in the figure. A socket cavity 10 which is compatible with the plug core 4 is provided at the upper end of the socket housing 7. Plug-in power-assisting handles 12 are provided on both sides of the plug housing 3 through handle slots 11. The plug-in power-assisting handle 12 includes a handle 13 and guide rails 14 integrally formed at both ends of the handle 13. Two spaced connecting shafts 15 are arranged inside the guide rails 14. Two inclined grooves 16 adapted to the connecting shafts 15 are arranged on both sides of the upper end of the socket housing 7, and a mouth 17 for inserting the connecting shafts 15 is arranged at the rear end of the inclined grooves 16. The inclined angle of the inclined grooves 16 is 10°-15°, preferably 10°. The inclined grooves 16 at this angle can complete the separation of the wiring harness plug 2 from the wiring harness socket 1, and the plug-in and pull-out of the plug-in power-assisting handle 12 is the most labor-saving. During assembly: align the plug core 4 of the wiring harness plug 2 with the socket cavity 10 of the wiring harness socket 1 and insert it so that the connecting shaft 15 is inserted into the inclined groove 16 through the mouth 17, and finally, by pushing the plug-in power-assisting handle 12 forward, the wiring harness plug 2 and the wiring harness socket 1 are plugged in with the cooperation of the connecting shaft 15 and the inclined groove 16; when the plug-in power-assisting handle 12 is pulled out, the wiring harness plug 2 and the wiring harness socket 1 can be separated.

[0018] Preferably, the front end of the guide rail 14 is provided with a first elastic positioning buckle 18, the rear end of the guide rail 14 is provided with a second elastic positioning buckle 19, the free end of the first elastic positioning buckle 18 is provided with a raised first clamping portion 20, the free end of the second elastic positioning buckle 19 is provided with a raised second clamping portion 21, the front end of the first clamping portion 20 is provided with a first inclined surface 22, the rear end of the first clamping portion 20 is provided with a first vertical surface 23, and the front and rear ends of the second clamping portion 21 are provided with smoothly transitioned arc surfaces 24. The front end of the handle slot 11 is provided with a first clamping slot 25 that cooperates with the first clamping portion 20, the middle part of the handle slot 11 is provided with a second clamping slot 26 that cooperates with the first clamping portion 20, the rear end of the handle slot 11 is provided with a third clamping slot 27 that cooperates with the first clamping portion 20 and the second clamping portion 21, and the rear end of the first clamping slot 25 is provided with a second inclined surface 28. When the plug-in power-assisting handle 12 is inserted into place, the first clamping portion 20 is clamped into the first clamping slot 25, and the second clamping portion 21 is clamped into the third clamping slot 27, so as to position the plug-in power-assisting handle 12, thereby improving the reliability of the connection between the wiring harness socket 1 and the wiring harness plug 2. Since the rear end of the first clamping slot 25 is provided with a second inclined surface 28, and the front and rear ends of the second clamping portion 21 are arc-shaped surfaces 24 with smooth transitions, the plug-in power-assisting handle 12 can be pulled out with a certain backward force; when the plug-in power-assisting handle 12 is pulled out into place, the first clamping portion 20 is clamped into the second clamping slot 26, and is limited by the first vertical surface 23 and the second vertical surface 29, so that the plug-in power-assisting handle 12 cannot be pulled out further, thereby fixing the plug-in power-assisting handle 12 to prevent it from falling off.

[0019] Preferably, the lower end surface of the plug housing 3 is provided with a first through hole 30, a second through hole 31, and a third through hole 32 respectively connected with the first card slot 25, the second card slot 26, and the third card slot 27. The first through hole 30, the second through hole 31, and the third through hole 32 are process holes during the injection molding of the plug housing 3 to facilitate demoulding, and the through holes can also be used as observation ports or unlocking ports. When the plug-in power-assisting handle 12 is to be removed, the first clamping portion 20 can be separated from the second card slot 26 by inserting a needle-like object.

[0020] Preferably, a horizontally arranged arc-shaped positioning groove 33 is provided at the front end of one of the inclined grooves 16. When the plug-in power-assisting handle 12 is inserted into place, the connecting shaft 15 is inserted into the arc-shaped positioning groove 33 to further improve the connection stability of the plug-in power-assisting handle 12.

[0021] Preferably, a flange 34 is integrally formed at the upper end of the socket housing 7, and an inverted buckle 35 is provided above the flange 34, through which a first sealing ring 36 is installed. A C-shaped bayonet 37 connected to the flange 34 is provided at the lower end of the first sealing ring 36 to facilitate the installation of the first sealing ring 36 into the flange 34. An outward-turned sealing edge is provided at the upper end of the first sealing ring 36, and the sealing edge consists of a first sealing edge 38 and a second sealing edge 39, wherein the first sealing edge 38 is higher than the second sealing edge 39, and the first sealing edge 38 is thinner than the second sealing edge 39. A second sealing ring 40 is provided at the end of the plug core 4. When the wiring harness plug 2 is inserted into the wiring harness socket 1, the first sealing edge 38 will be squeezed and turned outward first, so that its inner surface is tightly fitted to the end face of the plug shell 3, and at the same time, the surface of the second sealing ring 40 is tightly fitted to the inner wall of the socket shell 7; when the wiring harness plug 2 continues to be inserted, the top of the second sealing edge 39 is tightly fitted to the end face of the plug shell 3, thereby greatly improving the sealing performance and achieving the IP68 waterproof level.

[0022] Preferably, a reinforcing positioning block 41 is integrally formed at the angle between the handle 13 and the guide rail 14, and a positioning groove 42 adapted to the reinforcing positioning block 41 is provided at the end of the plug housing 3. The reinforcing positioning block 41 improves the strength of the plug-in power-assisting handle 12, and cooperates with the positioning groove 42 to further improve the connection stability of the plug-in power-assisting handle 12.

[0023] Preferably, the plug core 4 is provided with an outer sheath 43, and the outer sheath 43 is connected to the plug core 4 through a group of elastic hooks 44 on the side wall. The outer sheath 43 is made of a more wear-resistant and smooth material to improve the smoothness and durability of the wiring harness plug 2 when plugging and unplugging.

[0024] Preferably, a labor-saving lever 45 is hinged on the handle 13 of the plug-in power-assisting handle 12, and the labor-saving lever 45 includes a power arm 46 and a resistance arm 47. A hinge shaft 48 as a fulcrum is provided between the power arm 46 and the resistance arm 47, and the hinge shaft 48 is hinged to the handle 13. The power arm 46 is longer than the resistance arm 47. Since a plurality of positioning structures are provided on the plug-in power-assisting handle 12, and there is a large friction between the terminal and the housing, it may be difficult for people with less strength to pull out the plug-in power-assisting handle 12. Therefore, the positioning structure can be separated by the lever force of the labor-saving lever 45, and then the plug-in power-assisting handle 12 can be pulled out. Operation method: just rotate the power arm 46 outward.

[0025] Preferably, the top of the resistance arm 47 is provided with an arc-shaped pressure surface 48 acting on the plug housing 3. The arc-shaped pressure surface 48 applies pressure to the plug housing 3, making the sliding smoother and easy to separate.

[0026] Preferably, when the plug-in power-assisting handle 12 is pulled out and the first clamping portion 20 is clamped into the second clamping slot 26, the signal jack terminal 6 and the power jack terminal 5 are completely separated from the signal pin terminal 9 and the power pin terminal 8, respectively, and the wiring harness plug 2 and the wiring harness socket 1 are disconnected. And the signal jack terminal 6 is disconnected before the power jack terminal 5. The advantages are: 1. Disconnecting the signal terminal before the power is disconnected can ensure that during maintenance or troubleshooting, the current will not suddenly pass through the equipment or personnel due to misoperation, thereby reducing the risk of electric shock and protecting the safety of equipment and personnel; 2. By disconnecting the signal terminal first, the scope of influence of the fault on the system can be reduced. During maintenance or troubleshooting, equipment damage or data loss caused by sudden current interruption can be avoided to ensure the stable operation of the system.

[0027] The above does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the structure and technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A wiring harness connector for an automobile, comprising a wiring harness socket (1) and a wiring harness plug (2) pluggable with the wiring harness socket (1), characterized in that: The wiring harness plug (2) comprises a plug housing (3), a plug core (4) integrally formed in the plug housing (3), the plug core (4) being provided with at least one group of power jack terminals (5) and one group of signal jack terminals (6), the wiring harness socket (1) comprising a socket housing (7) and a group of power pin terminals (8) and a group of signal pin terminals (9) arranged at the bottom of the socket housing (7), the upper end of the socket housing (7) being provided with a socket cavity (10) adapted to the plug core (4), the A plug-in power-assisting handle (12) is provided on both sides of the plug housing (3) through a handle slot (11), the plug-in power-assisting handle (12) comprising a handle (13), guide rails (14) integrally formed at both ends of the handle (13), at least two spaced connection shafts (15) are provided inside the guide rail (14), and inclined grooves (16) adapted to the connection shafts (15) are provided on both sides of the upper end of the socket housing (7), and a mouth (17) for the connection shaft (15) to be inserted is provided at the rear end of the inclined groove (16).

2. The automotive wiring harness connector according to claim 1, characterized in that: The guide rail (14) is provided with a first elastic positioning buckle (18) at the front end and a second elastic positioning buckle (19) at the rear end; the first elastic positioning buckle (18) is provided with a protruding first clamping portion (20) at the free end; the second elastic positioning buckle (19) is provided with a protruding second clamping portion (21) at the free end; the first clamping portion (20) is provided with a first inclined surface (22) at the front end and a first vertical surface (23) at the rear end; the second clamping portion (21) is provided with arc surfaces (24) with smooth transition at both front and rear ends; the handle slot (11) is provided with a first clamping slot (25) at the front end, a second clamping slot (26) in the middle, and a third clamping slot (27) at the rear end; the first clamping slot (25) is provided with a second inclined surface (28) at the rear end, and the second clamping slot (26) and the third clamping slot (27) are both provided with second vertical surfaces (29) at the rear ends.

3. The automotive wiring harness connector according to claim 2, characterized in that: The lower end surface of the plug housing (3) is provided with a first through hole (30), a second through hole (31), and a third through hole (32) which are in communication with the first card slot (25), the second card slot (26), and the third card slot (27), respectively.

4. The automotive wiring harness connector according to claim 1, characterized in that: The inclined groove (16) has an inclination angle of 10°-15°, and a horizontally arranged arc-shaped positioning groove (33) is provided at the front end of at least one of the inclined grooves (16).

5. The automotive wiring harness connector according to claim 1, characterized in that: The upper end of the socket housing (7) is integrally formed with a flange (34), and an inverted buckle (35) is provided above the flange (34); a first sealing ring (36) is installed through the flange (34); a C-shaped bayonet (37) connected to the flange (34) is provided at the lower end of the first sealing ring (36); and an outward-turned sealing edge is provided at the upper end; the sealing edge consists of a first sealing edge (38) and a second sealing edge (39); the first sealing edge (38) is higher than the second sealing edge (39) and thinner than the second sealing edge (39); and a second sealing ring (40) is provided at the end of the plug core (4).

6. The automotive wiring harness connector according to claim 1, characterized in that: A reinforced positioning block (41) is integrally formed at the angle between the handle (13) and the guide rail (14), and a positioning groove (42) adapted to the reinforced positioning block (41) is provided at the end of the plug housing (3).

7. The automotive wiring harness connector according to claim 1, characterized in that: An outer sheath (43) is provided on the plug core (4), and the outer sheath (43) is connected to the plug core (4) via a group of elastic hooks (44) on the side wall.

8. The automotive wiring harness connector according to claim 1, characterized in that: A labor-saving lever (45) is hingedly connected to the handlebar (13) of the plug-in power-assisting handle (12). The labor-saving lever (45) comprises a power arm (46) and a resistance arm (47). A hinge shaft (48) serving as a fulcrum is provided between the power arm (46) and the resistance arm (47). The power arm (46) is longer than the resistance arm (47).

9. The automotive wiring harness connector according to claim 8, characterized in that: The top of the resistance arm (47) is provided with an arc-shaped pressure surface (48) acting on the plug housing (3).

10. The automotive wiring harness connector according to claim 2, characterized in that: When the plug-in power-assisting handle (12) is pulled out and the first clamping portion (20) is clamped into the second clamping slot (26), the signal jack terminal (6) and the power jack terminal (5) are completely separated from the signal pin terminal (9) and the power pin terminal (8), respectively, and the signal jack terminal (6) is disconnected before the power jack terminal (5).

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