CN219267900U

CN219267900U - Power connector structure

Info

Publication number: CN219267900U
Application number: CN202223323042.8U
Authority: CN
Inventors: 杨松; 朱送良; 黄世宇; 杨言博
Original assignee: Dongguan Haorun Precision Electronic Co ltd
Current assignee: Dongguan Haorun Precision Electronic Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-27
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to a power connector structure, which is provided with an inner rubber seat, a plurality of terminals, a rear cover and a shell, wherein the inner rubber seat is provided with a front end, a rear end, terminal holes penetrating through the front end and the rear end and a welding wire groove which is arranged on the rear end and communicated with the terminal holes; the terminal is assembled corresponding to the terminal hole of the inner rubber seat and provided with a welding leg extending to the welding wire groove; the rear cover is covered at the rear end of the inner rubber seat and is matched with the welding wire groove to press the welding leg, so that the welding leg is stably in the welding wire groove and is partially exposed, and the exposed part of the welding leg is used for welding with a wire; the shell is used for fixing the inner rubber seat, the rear cover and the lead together in an injection molding sealing mode, and is provided with an interface, so that the front end of the inner rubber seat is exposed through the interface. The utility model meets the requirement of automatic production, and the terminals are stable and accurate; the shell is fixed with the inner rubber seat, the rear cover and the lead through the injection molding and sealing mode, the structure is compact and reasonable, the automatic assembly is suitable, the production efficiency and the quality are effectively improved, and the product consistency is good.

Description

Power connector structure

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a power connector structure.

Background

The power connector mainly comprises a shell, an inner rubber core, a terminal and a cable wire, wherein the shell and the inner rubber core are assembled and connected, the cable wire firstly passes through a hole in the shell, the cable wire and the terminal can be riveted only after passing through the cable wire, then the terminal can be assembled on the inner rubber core, and finally the shell and the inner rubber core are assembled into a whole; the whole assembly process is very inconvenient, is not suitable for automatic production, can only rely on manual operation, not only affects production, but also has unstable product quality and poor consistency.

Disclosure of Invention

The utility model aims to provide a power connector structure which is suitable for automatic production and improves production efficiency and quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a power connector structure, having:

the inner rubber seat is provided with a front end, a rear end, a terminal hole penetrating through the front end and the rear end, and a welding wire groove which is arranged on the rear end and communicated with the terminal hole;

a plurality of terminals which are assembled corresponding to the terminal holes of the inner rubber seat and are provided with welding pins extending to the welding wire grooves;

the rear cover is covered at the rear end of the inner rubber seat and is matched with the welding wire groove to press the welding leg, so that the welding leg is stably in the welding wire groove and is partially exposed, and the exposed part of the welding leg is used for welding with a wire;

the shell is used for fixing the inner rubber seat, the rear cover and the lead together in an injection molding sealing mode, and is provided with an interface, so that the front end of the inner rubber seat is exposed through the interface.

The above scheme is further that the inner rubber seat is also provided with a wire clamping part connected with the welding wire groove, and part of the wire is clamped into the wire clamping part.

The scheme is that the rear end of the inner rubber seat is also provided with a partition wall which protrudes backwards and is positioned between the terminal holes.

The section of the rear cover is concave, the rear cover is buckled on the rear end of the inner rubber seat, a pressing foot part is arranged on one bending edge of the rear cover, the pressing foot part is matched with the welding wire groove to press the welding foot of the terminal, a first positioning convex column is arranged on the other opposite bending edge of the rear cover, and the first positioning convex column is inserted into a first positioning slot hole preset in the rear end of the inner rubber seat.

The scheme is that the rear cover is also provided with a second positioning slot hole, the second positioning slot hole is positioned between the bent edges at two sides, the rear end of the inner rubber seat is provided with a second positioning convex column, and the second positioning convex column is correspondingly inserted into the second positioning slot hole; the second positioning convex column and the first positioning convex column are in positive and negative insertion.

The above solution further provides that the housing is provided with a waterproof ring obtained by assembly or injection moulding, which surrounds the interface.

The above scheme is that the shell is also provided with a coil part for extending and coating the lead.

After the structure is adopted, the automatic production requirement is met, the terminals are firmly assembled to the inner rubber seat through the rear cover and welded with the lead wires, the riveting wire is not needed, the automatic one-time welding can be realized, and the terminals are stable and accurate; the shell fixes the inner rubber seat, the rear cover and the lead together in an injection molding sealing mode, and is provided with an interface, so that the front end of the inner rubber seat is exposed through the interface for plugging. The utility model has compact and reasonable structure, is suitable for automatic assembly, effectively improves the production efficiency and quality, and has good product consistency.

Description of the drawings:

FIG. 1 is a diagram illustrating the construction and assembly of a conventional power connector;

FIG. 2 is a schematic structural diagram of a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of another view of the embodiment of FIG. 2;

FIGS. 4 and 5 are exploded views of the embodiment of FIG. 2;

FIG. 6 is a schematic view of a combination structure of the rear cover and the inner rubber base in the embodiment of FIG. 2;

FIG. 7 is an exploded view of the structure of FIG. 6;

FIG. 8 is a schematic view of another embodiment of the rear cover and the inner rubber seat;

FIG. 9 is an exploded view of the structure of FIG. 8;

FIG. 10 is a schematic view of another embodiment of the rear cover and the inner rubber seat;

fig. 11 is an exploded view of the structure of fig. 10.

The specific embodiment is as follows:

the conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 2, 3, 4, 5, 6, and 7, which are schematic structural views of a preferred embodiment of the present utility model, the present utility model relates to a power connector structure, which comprises: an inner rubber seat 1, a plurality of terminals 2, a rear cover 3, a wire 4 and a shell 5.

The inner rubber seat 1 is provided with a front end, a rear end, a terminal hole 11 penetrating through the front end and the rear end, and a welding wire groove 12 arranged on the rear end and communicated with the terminal hole; the terminals 2 are assembled corresponding to the terminal holes 11 of the inner rubber base 1, and the terminals 2 have solder feet 21 extending onto the wire grooves 12. The rear cover 3 is covered at the rear end of the inner rubber seat 1 and is matched with the welding wire groove 12 to press the welding leg 21, so that the welding leg 21 is stably in the welding wire groove 12 and is partially exposed, and the exposed part of the welding leg 21 is used for welding with the lead 4; the housing 5 fixes the inner rubber base 1, the rear cover 3 and the lead 4 together by injection molding, and the housing 5 has an interface 51 so that the front end of the inner rubber base 1 is exposed through the interface 51 for plug connection with an external component.

In this embodiment, the wire bonding grooves 12 are in a groove shape, and the number of the wire bonding grooves 12 corresponds to the number of the terminal holes and are arranged at intervals in parallel, so that the wires 4 are conveniently aligned and welded, and short circuit is effectively avoided. The wire 4 is shown as having a plurality of sub-wires connected in a bundle, each sub-wire being inserted into a wire groove 12 for soldering with the leg of the terminal. In this embodiment, the inner rubber seat 1 is further provided with a wire clamping portion 13 connected with the wire welding groove 12, and the sub-wires of the wire 4 are partially clamped into the wire clamping portion 13, so that the connection structure and the positioning effect are increased, the welding is facilitated, and the product quality is improved. In this embodiment, the rear end of the inner rubber seat 1 is further provided with a partition wall 14 protruding backward and located between the terminal holes 11, so as to increase the creepage distance, prevent interference and short circuit, and the partition wall 14 of this embodiment also effectively supports the inner side surface of the rear cover 3, plays a supporting role, increases the assembly structure of the rear cover 3 and the inner rubber seat 1, and is conducive to subsequent injection molding processing.

In this embodiment, the cross section of the rear cover 3 is concave, the rear cover 3 is buckled on the rear end of the inner rubber seat 1, a bent edge on one side of the rear cover 3 is provided with a pressing foot portion 31, the pressing foot portion 31 cooperates with the welding wire groove 12 to press the welding foot 21 of the terminal, the other opposite bent edge of the rear cover 3 is provided with a first positioning convex column 32, and the first positioning convex column 32 is inserted into a first positioning slot 15 preset on the rear end of the inner rubber seat 1. The rear cover 3 is also provided with a second positioning slot hole 33, the second positioning slot hole 33 is positioned between the bending edges at two sides, the rear end of the inner rubber seat 1 is provided with a second positioning convex column 16, and the second positioning convex column 16 is correspondingly inserted into the second positioning slot hole 33; the second positioning stud 16 and the first positioning stud 32 form a positive-negative insertion configuration. The structure is simple, the assembly is convenient, the stable and accurate combination effect is obtained, the assembly structure of the rear cover 3 and the inner rubber seat 1 is increased, and the subsequent injection molding processing is facilitated.

In this embodiment, the housing 5 may be obtained by injection molding of different materials in several times, and a waterproof ring 52 is further provided on the housing 5, which is obtained by assembly or injection molding, and the waterproof ring 52 surrounds the interface 51, so as to increase the tightness of the plug connection. And the shell 5 is also provided with a coil part 53 which extends to cover the lead 4, so that the connectivity and the structural strength of the lead are improved, the bending resistance and the bending resistance are improved, and the service life of the product is prolonged.

Fig. 8 and 9 show another implementation structure of the rear cover and the inner rubber seat, on the basis of the implementation, the rear cover 3 is added with a pressing post 34 to press the terminal 2 against the corresponding terminal hole 11, so that the terminal 2 is stabilized in the terminal hole 11, the plugging force is increased, and the use efficiency and the service life of the connector are improved.

Fig. 10 and 11 show another implementation structure of the rear cover and the inner rubber base, especially for encoder connection implementation, in this embodiment, the first positioning protruding columns 32 on the rear cover 3 are elongated, a group of second positioning protruding columns 16 are added on the rear end of the inner rubber base 1, the first positioning protruding columns 32 are located between the two groups of second positioning protruding columns 16 after being assembled, the capping stability is increased, meanwhile, the first positioning protruding columns 32 also adaptively press the corresponding terminals 2, so that the corresponding terminals 2 are stabilized in the terminal holes 11, the plugging force is increased, and the use efficiency and the service life of the connector are improved.

The power connector structure provided by the utility model meets the requirement of automatic production, the terminals are assembled to the inner rubber seat corresponding to the terminal holes, the terminals can be assembled automatically by utilizing the material belt, then the terminals are firmly covered by the rear cover, the inner rubber seat is provided with the welding wire grooves 12, the positioning exposure of the welding pins 21 and the welding with the lead wires 4 are facilitated, the riveting wire is not needed, the automatic one-time welding processing can be realized, the assembly is optimized, the terminals are stable and accurate, and the welding quality and the welding efficiency are improved; the shell fixes the inner rubber seat, the rear cover and the lead together in an injection molding and sealing mode, and can be molded by one or more times of injection molding through the matching of a mold, and finally, the integral structure with stable and reliable structure is obtained. The shell is provided with an integrally formed interface, so that the front end of the inner rubber seat is exposed through the interface for plugging. The utility model has compact and reasonable structure, is suitable for automatic assembly, effectively improves the production efficiency and quality, and has good product consistency.

The present utility model has been described in detail with reference to the embodiments, but it is to be understood that the utility model is not limited to the embodiments, and is intended to be interpreted as illustrative only, and is not to be construed as limiting the scope of the utility model.

Claims

1. A power connector structure characterized by comprising:

the inner rubber seat (1), the inner rubber seat (1) is provided with a front end, a rear end, a terminal hole (11) penetrating through the front end and the rear end and a welding wire groove (12) arranged on the rear end and communicated with the terminal hole;

a plurality of terminals (2) which are assembled corresponding to the terminal holes (11) of the inner rubber seat (1), and the terminals (2) are provided with welding pins (21) which extend to the welding wire grooves (12);

the rear cover (3) is covered at the rear end of the inner rubber seat (1) and is matched with the welding wire groove (12) to press the welding leg (21), so that the welding leg (21) is stabilized in the welding wire groove (12) and is partially exposed, and the exposed part of the welding leg (21) is used for welding with the lead (4);

the shell (5) is used for fixing the inner rubber seat (1), the rear cover (3) and the lead (4) together in an injection molding sealing mode, and the shell (5) is provided with an interface (51) so that the front end of the inner rubber seat (1) is exposed through the interface (51).

2. A power connector structure according to claim 1, characterized in that the inner rubber seat (1) is further provided with a wire clamping portion (13) which is engaged with the wire welding groove (12), and a part of the wire (4) is clamped into the wire clamping portion (13).

3. A power connector structure according to claim 1, characterized in that the rear end of the inner rubber seat (1) is further provided with a partition wall (14) protruding rearward and located between the terminal holes (11).

4. The power connector structure according to claim 1, wherein the cross section of the rear cover (3) is concave, the rear cover (3) is buckled on the rear end of the inner rubber seat (1), a pressing foot part (31) is arranged at one side bending edge of the rear cover (3), the pressing foot part (31) is matched with the welding wire groove (12) to press the welding foot (21) of the terminal, a first positioning convex column (32) is arranged at the other side bending edge of the rear cover (3), and the first positioning convex column (32) is inserted into a first positioning slot hole (15) preset in the rear end of the inner rubber seat (1).

5. The power connector structure according to claim 4, wherein the rear cover (3) is further provided with a second positioning slot (33), the second positioning slot (33) is located between the two side bending edges, the rear end of the inner rubber seat (1) is provided with a second positioning convex column (16), and the second positioning convex column (16) is correspondingly inserted into the second positioning slot (33); the second positioning boss (16) and the first positioning boss (32) form a positive and negative insertion mode.

6. A power connector structure according to claim 1, characterized in that the housing (5) is further provided with a waterproof ring (52) obtained by assembly or injection moulding, which waterproof ring (52) surrounds the interface (51).

7. A power connector structure according to claim 1, characterized in that the housing (5) is further provided with a wire wrap (53) extending around the wires (4).