CN213816630U - Vehicle-mounted transmission connector assembly - Google Patents

Abstract

The utility model relates to an automobile audio and video transmission field especially relates to on-vehicle transmission connector subassembly, including on-vehicle connector structure, fitting piece, first fixing device and second fixing device, wherein, first fixing device includes first nut and screw thread portion, and first nut fixed connection is in first terminal seat one side near first binding post, and screw thread portion sets up in second terminal seat one side near second binding post on the side wall of whole body, and screw thread portion and first nut threaded connection; the second fixing device comprises a second nut, a third nut and a bolt, the outer wall of the second nut is fixedly connected to the outer wall of the first nut, the outer wall of the third nut is fixedly connected to one side, away from the second wiring terminal, of the outer wall of the second terminal base and corresponds to the second nut, and the second nut and the third nut are simultaneously in threaded connection with the bolt. The utility model provides a receive external force and pull the problem of the easy separation of on-vehicle transmission connector structure and fitting piece when connecting wire.

Description

Vehicle-mounted transmission connector assembly

Technical Field

The utility model relates to a car audio frequency and video transmission field especially relates to on-vehicle transmission connector subassembly.

Background

With the continuous development of science and technology, the automobile industry has been rapidly developed, the functions corresponding to automobiles have been gradually increased, the realization of the functions needs to be completed by combining more parts, in the process of automobile driving, all parts corresponding to automobiles need to work, and all parts need to be closely matched, the matching of the parts mostly needs a power supply to be realized, in the face of the uncertainty of automobile driving environment, when the line connection is involved, the connection position is ensured not to be exposed in the air so as to cause negative influence on driving, in the face of the problems, the generation of vehicle-mounted transmission connector components is existed, in some traffic accident analysis, many traffic accidents are caused by the failure of the connector components, and after some connection terminals and shielding parts inside the connector structure are fixed, when the connecting wire is pulled by external force, the connecting terminal at one end of the connecting wire, the terminal seat part and the like are easily pulled out, so that the structure of the automobile connector is not firm, the tensile property is poor, and the reliability of the automobile connector is seriously influenced.

To this end, the reference CN108321602A discloses a vehicle-mounted transmission connector structure and a vehicle-mounted transmission connector assembly, wherein the vehicle-mounted transmission connector structure includes a first connection terminal including a plurality of first pins; a first terminal base extending in a front-rear direction and mounted with a plurality of first pins; the first shielding piece is provided with a first shielding through hole extending in the front-back direction, and the first shielding through hole is provided with a socket opened backwards and a socket opened forwards; the first terminal seat is inserted into the first shielding through hole through the socket of the first shielding through hole; the hole wall of the first shielding through hole is provided with a first elastic limiting part and a second elastic limiting part, the first elastic limiting part is located on the rear side of the second elastic limiting part, the first elastic limiting part limits the rear end of the first terminal base, and the second elastic limiting part limits the front end of the first terminal base. The vehicle-mounted connector has the advantages that the problem that when the connecting wire is pulled by external force is avoided by limiting the front and the back of the first terminal seat by the aid of the elastic limiting blocks, the connecting terminal at one end of the connecting wire, the terminal seat component and the like are easily pulled out is solved.

However, the pulling of the external force is not only applied to the vehicle-mounted connector structure, but also possibly applied to both sides of the whole vehicle-mounted transmission connector assembly, and the effect of only fixing the connection terminal and the terminal seat component at one end of the connection wire is not large, so that the connection between the connection terminals needs to be fixed when the connection wires at both sides of the whole vehicle-mounted transmission connector assembly are pulled. The prior art is realized by forming a clamping groove between two sub-pin parts of which the front ends of the first pins are provided with inserting parts which are matched and inserted into the corresponding second pins, and the clamping mode is relatively reliable, so that the connection between the wiring terminals can be tightly connected, and the connection between the vehicle-mounted transmission connector structure and the fitting piece is firmer.

Therefore, a vehicle transmission connector assembly is needed to solve the problem that the vehicle transmission connector structure and the mating member are easy to separate when the connecting line is pulled by external force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vehicle-mounted transmission connector subassembly solves the problem of the easy separation of vehicle-mounted transmission connector structure and fitting piece when receiving external force and dragging the connecting wire.

In order to achieve the above object, the technical solution of the present invention provides a vehicle-mounted transmission connector assembly, including a vehicle-mounted connector structure and a mating piece, where the vehicle-mounted connector structure includes a first connection terminal, a first terminal seat, a first shielding member and a first housing, a first shielding through hole extending in a front-back direction is formed in the first shielding member, the first terminal seat is inserted into the first shielding through hole, and the first shielding through hole is provided with a first elastic limiting portion for preventing a rear end of the first terminal seat from sliding back and a second elastic limiting portion for preventing a front end of the first terminal seat from sliding forward; the fitting piece comprises a second wiring terminal, a second terminal seat and a second shielding piece, a second shielding through hole extending in the front-back direction is formed in the second shielding piece, the second terminal seat is inserted into the second shielding through hole through a socket of the second shielding through hole, a first terminal wire and a second terminal wire are mutually abutted, the fitting piece further comprises a first fixing device and a second fixing device, the first fixing device comprises a first nut and a threaded portion, the first nut is fixedly connected to one side, close to the first wiring terminal, of the first terminal seat, the threaded portion is formed in one side, close to the second wiring terminal, of the side wall of the outer side of the whole body of the second terminal seat, and the threaded portion is in threaded connection with the first nut; the second fixing device comprises a second nut, a third nut and a bolt, the outer wall of the second nut is fixedly connected to the outer wall of the first nut, the outer wall of the third nut is fixedly connected to one side, far away from the second wiring terminal, of the outer wall of the second terminal base and corresponds to the second nut, and the second nut and the third nut are simultaneously in threaded connection with the bolt.

The technical principle of the scheme is as follows: the first nut fixedly connected to one side, close to the first wiring terminal, of the first terminal base is in threaded fit with the threaded portion, close to one side of the second wiring terminal, of the second terminal base, connection and fixation of the first terminal base and the second terminal base are achieved, and the first terminal base and the second terminal base are connected more tightly in a threaded connection mode; in order to further strengthen the connection between the first terminal seat and the second terminal seat, prevent that first nut is not hard up and cause the connection unstability between first binding post and the second binding post, fixed connection has respectively on the outer wall of first nut the second nut and on the second terminal seat outer wall and kept away from second binding post's one side fixed connection the third nut, second nut and third nut position are corresponding, guarantee that the bolt can carry out screw-thread fit with second nut and third nut simultaneously with this, third nut and second nut carry out screw-thread fit with the bolt and carry out the refastening to first terminal seat and second terminal seat.

The technical effect of the scheme is as follows: the threaded connection of the first nut and the threaded portion achieves a preliminary fixed connection of the first terminal block and the second terminal block, the connection between the first connecting terminal and the second connecting terminal is not realized by clamping the first connecting terminal and the second connecting terminal, after the first nut and the thread part are screwed down, the central axes of the nut holes of the second nut and the third nut are superposed, then the bolt sequentially passes through the second nut and the third nut to be in threaded connection to realize the secondary fixation of the first terminal seat and the second terminal seat, the first nut is prevented from loosening, a plurality of fixing devices are used for fixing the first terminal seat and the second terminal seat, so that the first terminal seat and the second terminal seat are more firmly and tightly fixed and can not be separated when being pulled by external force, thereby the connection between the vehicle-mounted transmission connector structure and a mating piece is better and firmer, and further the problem that the vehicle-mounted transmission connector structure and the matching piece are easy to separate when the connecting line is pulled by external force is avoided.

Furthermore, the bolt is provided with limit holes which are uniformly distributed, and the bolt is provided with a limit pin which is matched with the bolt for use. When the bolt passes through the nut hole of second nut and third nut in proper order and carries out threaded connection, it is not hard up to connect probably to appear, utilize the spacer pin to insert the fixed of realization to bolt relative position in spacing hole after bolt and second nut and third nut cooperation are accomplished, make the bolt more firm with the being connected of second nut and third nut, can not appear not hard up problem when receiving external force and pulling, even be so good that the bolt is connected with second nut and third nut, we also can realize fixing once more first terminal seat and second terminal seat through spacer pin and spacing hole, and then make the connection between on-vehicle transmission connector structure and the fitting piece better firm.

Furthermore, the number of the second nuts and the number of the third nuts are two respectively, and the second nuts and the third nuts are symmetrical left and right along the central axis of the first nut. The number of the second nuts and the number of the third nuts are two respectively, so that the connection is firmer, and compared with one nut, the connecting wire can bear larger external force to pull the connecting wire, and the first terminal seat and the second terminal seat cannot be separated; when the connecting line is pulled by external force, the stress at the joint of the bolt, the second nut and the third nut can be more uniform along the bilateral symmetry of the central axis of the first nut.

Furthermore, one end of the threaded portion, which is close to the second wiring terminal, is provided with a guide portion with an outer diameter smaller than that of the threaded portion. The guiding part is arranged to be beneficial to the fact that the threaded part extends into the first nut hole, the butt joint of the guiding part and the first nut hole is avoided, and unnecessary trouble is reduced.

Furthermore, the first wiring terminal is a plurality of first pins, and the first pins are spring pieces. The first pin is made into the spring vibrating piece, so that the first pin has elasticity, when the threaded matching of the first nut and the threaded part is realized, the first nut can be controlled to be in good contact with the second pin at any position of the threaded part, and meanwhile, even if the vehicle-mounted transmission connector structure and the matching piece are separated, the first pin can be in contact with the second pin under the action of the elasticity.

Furthermore, be equipped with first connecting portion and second connecting portion on the first casing, a plurality of first casings are connected through the cooperation of first connecting portion and second connecting portion. When the vehicle-mounted transmission connector assembly is mounted, a plurality of vehicle-mounted transmission connector assemblies are mounted on the whole vehicle, most of the vehicle-mounted transmission connector assemblies are connected at the same position, the excessive connection wires in the vehicle can cause disorder, and the corresponding vehicle-mounted transmission connector assemblies cannot be well found when the vehicle-mounted transmission connector assemblies are repaired next time, so that the corresponding fault maintenance cannot be well carried out, the connection wires are bound through the adhesive tapes or the ropes at present, the same condition can lead to the fact that the adhesive tapes or the ropes need to be cut apart when the vehicle-mounted transmission connector assemblies are dismounted, all the connection wires can be dismounted to replace the connection wires required by the corresponding faults, and the like maintenance can be carried out on the first shells through the matching of the first connecting parts and the second connecting parts, so that the vehicle-mounted transmission connector assemblies required by the faults only need to be correspondingly dismounted, therefore, the vehicle-mounted transmission connector assembly can be connected with each other, is attractive and orderly, and can be accurately disassembled.

Furthermore, the first connecting portion is a first clamping groove, the second connecting portion is a protrusion, the shape of the first clamping groove is matched with that of the protrusion, and the first clamping groove is in sliding fit with the protrusion. In the face of connection between the automobile transmission connecting line, we not only need fix the junction and avoid appearing the junction contact failure, still need arrange in order various on-vehicle transmission coupling assembling simultaneously, avoid forming the interference between subassembly and the subassembly, first draw-in groove carries out sliding fit with the arch, not only can avoid forming interference and chaotic phenomenon between subassembly and the subassembly, this kind of mode can directly dismantle certain on-vehicle transmission assembly simultaneously, realize accurate location, the connection of on-vehicle transmission connector subassembly only need carry on simple sliding fit can simultaneously, this makes and realizes connecting each on-vehicle transmission connector subassembly high-speed joint and dismantlement when carrying out the combination of connections and dismantling, the time of equipment and dismantlement has been reduced.

Furthermore, the first connecting portion and the second connecting portion are cylindrical magnets, and magnetic poles of the cylindrical magnets attract each other. The first connecting part and the second connecting part on different first shells realize the connection between different first shells by utilizing the principle that the opposite poles of the magnets attract each other, when in use, people only need to approach different first shells to realize the connection of different first shells, the operation is simple, the different vehicle-mounted transmission connector components are likely to be in different cross distribution in the face of different vehicle-mounted transmission connector components, so that the different first shells are in cross distribution, the length of the connecting wire can be increased to enable the different first shells to be in the same direction, but unnecessary waste is caused, such as waste of the connecting wire and the like, the simplicity and convenience of the connection are considered in the situation, meanwhile, any first shell in any direction can be connected with other first shells, and the cylindrical magnet can realize the simplicity and convenience of the connection, and any first shell in any direction can be connected with other first shells.

Furthermore, first connecting portion are the second draw-in groove, the second connecting portion are the jack catch, the jack catch stretches into and fixes different first casings in the second draw-in groove. When the automobile goes or receives the collision, can produce the pulling force to each on-vehicle transmission connector subassembly, different pulling forces act on different first casings simultaneously promptly, and the jack catch stretches into in the second draw-in groove for can not separate by zonulae occludens between the different first casings, relatively speaking, separation between the first casing needs the great pulling force to act on first casing simultaneously could realize, has realized the increase to the firm in connection degree between the different first casings.

Drawings

Fig. 1 is a schematic structural diagram of a first connection terminal, a second connection terminal, a first terminal seat and a second terminal seat of an on-vehicle transmission connector assembly according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a partial structure of an embodiment of the vehicle-mounted transmission connector structure of the present invention.

Fig. 3 is a schematic diagram of a partial structure of a mating member of the vehicular transmission connector assembly according to the present invention.

Fig. 4 is a schematic view of a structure of an on-board transmission connector according to an embodiment of the present invention.

Fig. 5 is a schematic view of another view of a structure of an on-board transmission connector according to an embodiment of the present invention.

Fig. 6 is a schematic view of the structure of the mating member of the vehicular transmission connector assembly according to the present invention.

Fig. 7 is a schematic structural diagram of a two-cylinder magnet according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a third first engaging groove and a pawl according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of the bolt and the limiting hole of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the terminal comprises a first wiring terminal 1, a first pin 11, a first terminal base 2, a first nut 20, a second nut 21, a second wiring terminal 3, a second pin 33, a second terminal base 4, a threaded portion 40, a third nut 41, a guide portion 42, a first shielding piece 5, a first elastic limiting portion 50, a second elastic limiting portion 51, a second shielding piece 6, a second resisting portion 60, a third elastic limiting portion 61, a second shell 7, a third resisting portion 70, a second socket 71, a second socket 72, a first shell 8, a first clamping groove 80, a protrusion 81, a first resisting portion 82, a first socket 83, a first socket 84, a magnet 9, a second clamping groove 10, a clamping jaw 100, a bolt 111 and a limiting hole 112.

Example one

The first embodiment is substantially as shown in figures 1, 2 and 3: the vehicle-mounted transmission connector assembly comprises a vehicle-mounted transmission connector structure and a fitting piece, wherein the vehicle-mounted transmission connector structure comprises a first wiring terminal 1 which comprises a plurality of first pins 11, and the first pins 11 form a spring-shaped structure through torsion; the number of the first pins in this embodiment is eight.

A first terminal holder 2 extending in the front-rear direction and mounted with first pins 11; a first nut 20 is welded and fixed on one side of the first terminal base 2 close to the first terminal 1, two second nuts 21 are welded and fixed on the peripheral side wall of the first nut 20, and the two second nuts 21 are bilaterally symmetrical along the central axis of the first nut 20 and

the first shielding part 5 is provided with a first shielding through hole extending in the front-back direction, and the first shielding through hole is provided with a socket opened backwards and a socket opened forwards; wherein the content of the first and second substances,

the first terminal base 2 is inserted into the first shielding through hole through the socket of the first shielding through hole; the pore wall of first shielding through-hole is equipped with spacing portion 50 of first elasticity and the spacing portion 51 of second elasticity, and the spacing portion 50 of first elasticity is located the rear side of the spacing portion 51 of second elasticity, and the rear end of the spacing first terminal seat 2 of the spacing portion 50 of first elasticity blocks the rear end of first terminal seat 2 and prevents its roll-off backward, and the spacing front end of first terminal seat 2 of the spacing portion 51 of second elasticity blocks the front end of first terminal seat 2 and prevents its roll-off forward.

As shown in fig. 4 and 5, in order to effectively protect the first shielding member 5 and the first connection terminal 1 from being collided with the outside, the vehicle-mounted transmission connector structure further includes a first housing 8, and the first housing 8 includes a housing body and a first accommodating through hole penetrating through the housing body in the front-rear direction; the first shielding piece 5 is inserted into the first accommodating through hole through the rear opening of the first accommodating through hole; the hole wall of the front opening of the first accommodating through hole is provided with a first resisting part 82, the first resisting part 82 resists the front end of the first shielding part 5, the rear end of the first accommodating through hole is provided with a first socket 84 penetrating through the hole wall, the first socket 84 is movably provided with a first plug connector 83 which can be inserted up and down, the first plug connector 83 extends into the first socket 84, the rear end of the first shielding part 5 can be touched, and when the first plug connector 83 extends into the lowest part, the rear end of the first shielding part 5 is clamped by the first plug connector 83.

For the integration of each on-vehicle transmission coupling assembling of effectual carrying out, be equipped with first connecting portion and second connecting portion on the first casing 8, utilize first connecting portion and second connecting portion to connect the combination between the different first casings 8, first connecting portion is first draw-in groove 80 in this embodiment, and the second connecting portion is protruding 81, and the shape of first draw-in groove 80 and the shape of protruding 81 are corresponding, first draw-in groove 80 and protruding 81 sliding fit.

The fitting piece comprises a second connecting terminal 3, and the second connecting terminal 3 comprises a plurality of second pins 33; the number of the second pins in this embodiment is eight.

A second terminal holder 4 having a plurality of pin grooves corresponding to the plurality of second pins 33 one to one, the pin grooves extending in the front-rear direction, at least a portion of each second pin 33 being accommodated in one of the pin grooves, a screw portion 40 being formed on a side of a peripheral wall of the second terminal holder 4 adjacent to the second connection terminal 3, the screw portion 40 being adjacent to the second connection terminal 3, one end of the screw portion 40 being welded and fixed with a guide portion 42 having an outer diameter smaller than the screw portion 40, and one side of an outer wall of the second terminal holder 4 away from the second connection terminal 3 being welded and fixed with two third nuts 41 corresponding to positions of the second nuts 21 one to one; and

a second shield member 6 having a second shield through hole extending in the front-rear direction, the second shield through hole having a forwardly-opened socket and a rearwardly-opened connector; wherein the content of the first and second substances,

the second terminal seat 4 is inserted into the second shielding through hole through the jack of the second shielding through hole; the periphery of the connecting port of the second shielding through hole is provided with a second resisting part 60, the second resisting part 60 resists the rear end of the second terminal seat 4, the hole wall of the second shielding through hole close to one side of the jack is convexly provided with a third elastic limiting part 61, and the third elastic limiting part 61 limits the front end of the second terminal seat 4.

As shown in fig. 6, in order to effectively protect the second shielding member 6 and the second connection terminal 3 from being collided by the outside, the fitting member further includes a second housing, and a second receiving through hole extending in the front-rear direction is formed in the second housing; the second shielding member 6 is inserted into the second accommodating through hole through the front opening of the second accommodating through hole; the hole wall of the second accommodating through hole is provided with a third resisting part 70, the rear end of the second accommodating through hole is provided with a second socket 71 penetrating through the hole wall, a second plug connector 72 is movably arranged at the second socket 71, the second plug connector 72 limits the rear end of the second shielding part 6, and the third resisting part 70 limits the front end of the second shielding part 6.

As shown in fig. 9, the connection of the mating member and the vehicle-mounted transmission connector structure is made by screwing the first nut 20 and the threaded portion 40 and by screwing the bolt 111 simultaneously through the second nut 21 and the third nut 41, and the first shield 5 and the second shield 6 are integrally molded.

The specific installation process is as follows: firstly install first binding post 1 and second binding post 3 on first terminal block 2 and second terminal block 4 respectively, secondly stretch into first nut 20 with guide part 42 and make screw thread portion 40 and first nut 20 carry out threaded connection, pass second nut 21 and third nut 41 with bolt 111 after the threaded connection and carry out screw-thread fit, make the connection between first terminal block 2 and the second terminal block 4 more firm, in this spacing hole 112 that utilizes supporting spacer pin to insert corresponding position simultaneously, it is not hard up to prevent that the threaded connection of bolt 111 and nut from appearing.

Then, the first terminal base 2 is inserted into the first shielding through hole through the socket of the first shielding through hole, so that the first elastic limiting portion 50 limits the rear end of the first terminal base 2, the second elastic limiting portion 51 limits the front end of the first terminal base 2, and meanwhile, the second terminal base 4 is inserted into the second shielding through hole through the socket of the second shielding through hole, so that the second abutting portion 60 abuts against the rear end of the second terminal base 4, and the third elastic limiting portion 61 limits the front end of the second terminal base 4, so that the first terminal base 2 and the second terminal base 4 are respectively fixed in the first shielding piece 5 and the second shielding piece 6.

Finally, the first shell and the second shell 7 are respectively sleeved on the first shielding part 5 and the second shielding part 6, that is, the first shielding part 5 is inserted into the first accommodating through hole through the rear opening of the first accommodating through hole, so that the first abutting part 82 abuts against the front end of the first shielding part 5 and the rear end of the first plug connector 83 limiting the first shielding part 5, and the second shielding part 6 is inserted into the first accommodating through hole through the rear opening of the second accommodating through hole.

When a plurality of vehicle-mounted transmission connector assemblies are to be connected, that is, different first housings 8 are connected, the first card slot 80 of one of the first housings 8 is connected with the protrusion 81 of the other first housing 8 in a sliding fit manner.

Example two

Substantially as shown in figure 7: compared with the first embodiment, the difference is that: the first connecting portion and the second connecting portion are cylindrical magnets 9, magnetic poles of the cylindrical magnets 9 attract each other, and different first shells 8 are connected through the principle that opposite poles of the magnets attract each other.

The specific implementation process is as follows: when a plurality of vehicle-mounted transmission connector assemblies are to be connected, the first connecting portion of one of the first housings 8 is brought close to the second connecting portion of the other first housing 8, that is, the cylindrical magnet 9 having different magnetism is brought close.

EXAMPLE III

Substantially as shown in figure 8: compared with the first embodiment, the difference is that: the first connecting portion is a second clamping groove 10, the second connecting portion is a clamping jaw 100, and the clamping jaw 100 extends into the second clamping groove 10 to fix different first shells 8.

The specific implementation process is as follows: when a plurality of vehicle-mounted transmission connector components are to be connected, the clamping claw 100 on one of the first housings 8 extends into the second clamping groove 10 on the other one of the first housings 8 to be clamped, and then the plurality of vehicle-mounted transmission connector components are fixedly connected.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims (9)

1. The vehicle-mounted transmission connector assembly comprises a vehicle-mounted connector structure and a fitting piece, wherein the vehicle-mounted connector structure comprises a first wiring terminal, a first terminal seat, a first shielding piece and a first shell, a first shielding through hole extending in the front-back direction is formed in the first shielding piece, the first terminal seat is inserted into the first shielding through hole, and the first shielding through hole is provided with a first elastic limiting part for preventing the rear end of the first terminal seat from sliding backwards and a second elastic limiting part for preventing the front end of the first terminal seat from sliding forwards; the fitting piece includes second binding post, second terminal seat and second shielding piece, has seted up in the second shielding piece along the second shielding through-hole of front and back to extension, and in the second terminal seat inserted the second shielding through-hole through the socket of second shielding through-hole, first terminal line and the mutual looks butt of second terminal line, its characterized in that: the first fixing device comprises a first nut and a threaded part, the first nut is fixedly connected to one side, close to the first wiring terminal, of the first terminal base, the threaded part is arranged on one side, close to the second wiring terminal, of the side wall of the outer side of the whole body of the second terminal base, and the threaded part is in threaded connection with the first nut; the second fixing device comprises a second nut, a third nut and a bolt, the outer wall of the second nut is fixedly connected to the outer wall of the first nut, the outer wall of the third nut is fixedly connected to one side, far away from the second wiring terminal, of the outer wall of the second terminal base and corresponds to the second nut, and the second nut and the third nut are simultaneously in threaded connection with the bolt.

2. The vehicular transmission connector assembly according to claim 1, wherein: the bolt is provided with limit holes which are uniformly distributed, and the bolt is provided with a limit pin which is matched with the bolt for use.

3. The vehicular transmission connector assembly according to claim 2, wherein: the number of the second nuts and the number of the third nuts are two respectively, and the second nuts and the third nuts are symmetrical left and right along the central axis of the first nut.

4. The vehicular transmission connector assembly according to claim 3, wherein: one end of the threaded portion, which is close to the second wiring terminal, is provided with a guide portion with an outer diameter smaller than that of the threaded portion.

5. The vehicular transmission connector assembly according to claim 4, wherein: the first wiring terminal is a plurality of first pins, and the first pins are spring pieces.

6. The vehicular transmission connector assembly according to claim 5, wherein: the first shell is provided with a first connecting portion and a second connecting portion, and the first shells are connected through the matching of the first connecting portion and the second connecting portion.

7. The vehicular transmission connector assembly according to claim 6, wherein: the first connecting portion is a first clamping groove, the second connecting portion is a protrusion, the shape of the first clamping groove is matched with that of the protrusion, and the first clamping groove is in sliding fit with the protrusion.

8. The vehicular transmission connector assembly according to claim 7, wherein: the first connecting portion with the second connecting portion are cylindrical magnets, and the opposite poles of the cylindrical magnets attract each other.

9. The vehicular transmission connector assembly according to claim 8, wherein: the first connecting portion are second clamping grooves, the second connecting portions are clamping jaws, and the clamping jaws stretch into the second clamping grooves to fix different first shells.

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