CN214478074U

CN214478074U - Plug support

Info

Publication number: CN214478074U
Application number: CN202022950927.5U
Authority: CN
Inventors: 余崇威
Original assignee: Cixi Wanneng Electronics Co ltd
Current assignee: Cixi Wanneng Electronics Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-22
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to a power plug technical field specifically provides a plug support. The plug support is used for a power plug and comprises an inner cover and a terminal board, pin pins are arranged on the terminal board, and the inner cover is connected with the terminal board in a buckling mode through a buckle. Compared with the prior art, the utility model discloses a plug support no longer connects inner cup and terminal block through moulding plastics, but realizes the connection of inner cup and terminal block through buckle structure, consequently assembles simplyr for whole power plug practices thrift once injection moulding process, reduction in manufacturing cost in manufacturing process.

Description

Plug support

Technical Field

The utility model relates to a power plug technical field particularly, relates to a plug support.

Background

A power plug generally includes an outer housing and an inner frame. The inner frame is used for fixing the plug pins and the power lines connected with the plug pins, and the outer shell is coated outside the inner frame to realize insulation protection.

The inner frame of the power plug generally comprises an inner die and an inner frame. In the prior art, the inner mold and the inner frame are integrally formed by injection molding, so that the whole power plug generally needs two injection molding processes in the manufacturing process: and carrying out primary injection molding on the inner framework, and then carrying out primary injection molding again to form the outer shell. This results in a complicated manufacturing and assembling process and a high manufacturing cost of the power plug.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one aspect of the above technical problem, the utility model provides a plug support.

The plug support is used for a power plug and comprises an inner cover and a terminal board, wherein the terminal board is provided with pins, and the inner cover is buckled and connected with the terminal board through a buckle.

Compared with the prior art, the utility model discloses a plug support no longer connects inner cup and terminal block through moulding plastics, but realizes the connection of inner cup and terminal block through buckle structure, consequently assembles simplyr for whole power plug practices thrift once injection moulding process, reduction in manufacturing cost in manufacturing process.

Optionally, the inner cover comprises a top plate and a surrounding plate, the surrounding plate surrounds the edge of the top plate and is fixedly connected with the top plate, the end face of the bottom of the surrounding plate is connected with the buckle, and the terminal plate is provided with a clamping groove or a clamping hole matched with the buckle.

Optionally, the buckle includes a connecting portion and a first clamping portion, the top of the connecting portion is connected to the surrounding plate, the bottom of the connecting portion is connected to the first clamping portion, a second clamping portion matched with the first clamping portion is arranged in the clamping groove, the second clamping portion extends along the radial direction of the terminal plate, and the first clamping portion is located below the second clamping portion.

Optionally, the bottom surface of the second clamping portion is provided with a limiting groove, the tail end of the first clamping portion is bent upwards to form a third clamping portion, and the third clamping portion is clamped into the limiting groove.

Optionally, gaps are formed in two sides of a connecting portion of the enclosing plate and the buckle, and the outer wall of the buckle and the outer wall of the enclosing plate are flush with the side wall of the terminal plate.

Optionally, the enclosing plate is provided with a receding groove which is recessed inwards relative to the enclosing plate, the groove bottom of the receding groove is connected with the buckle, and the terminal plate is provided with the clamping hole matched with the buckle.

Optionally, the end face of the bottom of the coaming is provided with a positioning pin, and the terminal plate is provided with a positioning hole matched with the positioning pin; or the terminal board is provided with the positioning pin, and the end face of the bottom of the coaming is provided with the positioning hole matched with the positioning pin.

Optionally, the terminal plate is provided with a glue overflow hole.

Optionally, a reinforcing rib is arranged in the glue overflowing hole.

Optionally, the terminal plate is provided with a limiting rib, and a side wall of the limiting rib is attached to an inner side wall of the coaming.

Drawings

Fig. 1 is an external structure view of a plug holder according to an embodiment of the present invention;

FIG. 2 is a schematic view of the inner lid of the embodiment of FIG. 1;

fig. 3 is a structural view of a terminal block according to the embodiment of fig. 1 of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 5 is an external structure view of a plug support according to another embodiment of the present invention;

fig. 6 is an exploded view of the terminal plate and the inner lid in the embodiment of fig. 4 according to the present invention;

fig. 7 is a cross-sectional view taken along the line B-B in fig. 5.

Description of reference numerals:

1-a terminal plate; 11-a card slot; 12-a second snap-in part; 13-a limiting groove; 14-limiting convex strips; 15-glue overflow hole; 16-reinforcing ribs; 18-a card hole; 19-positioning holes; 2-inner cover; 21-a positioning pin; 23-a top plate; 24-enclosing plates; 241-a retreat slot; 25-a gap; 26-outlet holes; 3-pins; 5-buckling; 51-a first snap-in portion; 52-third snap-fit; 53-connecting part.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the drawings of the specification of the present invention, the Z direction represents the upper side, and the direction opposite to the Z direction represents the lower side.

If there is a description in an embodiment of the present invention referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

As shown in fig. 1, the present embodiment provides a plug holder, which can be used to manufacture a power plug. For example, the housing may be fitted or injection molded outside the plug holder to form the power plug or a portion of the power plug.

The plug support comprises an inner cover 2 and a terminal board 1, and pins 3 are arranged on the terminal board 1. The tail end of the pin 3 is inserted from one side of the terminal board 1 to the other side of the terminal board 1 and fixedly connected to the terminal board 1. The inner cap 2 is fastened to the terminal plate 1 and covers the rear ends of the pins 3. The tail ends of the pins 3 are used for connecting cables. The inner cover 2 is provided with an outlet hole 26, and the cable connected with the pin 3 is led out through the outlet hole 26.

The inner cover 2 is connected with the terminal board 1 through a buckle 5 so as to realize the relative fixation of the inner cover 2 and the terminal board 1. The inner cover 2 is engaged with the terminal plate 1 to form a hollow chamber, and the tail end of the pin 3 is located in the chamber.

The plug support of this embodiment connects through buckle 5 and realizes the connection of inner cup 2 and terminal board 1, and no longer adopts injection molding process to connect inner cup and terminal board, therefore the assembly of plug support is simpler for whole power plug practices thrift once injection molding process, reduction in manufacturing cost in manufacturing process.

As shown in fig. 1 to 3, specifically, the inner lid 2 includes a ceiling 23 and a shroud 24. The top of the enclosing plate 24 surrounds the edge of the top plate 23 and is connected with the top plate 23 in an integral forming mode. The top plate 23 may be circular, rectangular with rounded corners, etc. A wire outlet hole 26 is provided at a portion where the top plate 23 and the shroud 24 are connected. The thickness of the top plate 23 surrounding the wire outlet hole 26 is gradually reduced from inside to outside, and the inner wall surface is a curved surface to adapt to the shape of the cable.

Alternatively, the terminal plate 1 is provided along with three card slots 11, the three card slots 11 being arranged at positions on opposite sides of the outlet hole 26 and on two adjacent sides of the outlet hole 26, respectively. The clamping groove 11 is recessed towards the axis direction of the terminal board 1 relative to the arc-shaped side wall of the terminal board 1, a second clamping portion 12 is arranged in the clamping groove 11, and the second clamping portion 12 is connected with the groove bottom of the clamping groove 11 in an integrated forming mode. The second clamping portion 12 extends along the radial direction of the terminal board 1, and a guide slope is arranged on one side, facing the inner cover 2, of the second clamping portion 12.

The end face of the bottom of the enclosing plate 24 is connected with the buckles 5, and the buckles 5 are matched with the clamping grooves 11 in a one-to-one correspondence mode. The catch 5 extends in the direction of the terminal plate 1. The clip 5 includes a connecting portion 53 and a first clip portion 51. The top of the connecting part 53 is connected with the bottom end face of the enclosing plate 24, and the bottom of the connecting part 53 is connected with the first clamping part 51. The first engaging portion 51 is bent toward the axis of the terminal board 1, that is, the first engaging portion 51 is bent at a certain angle with respect to the connecting portion 53. And the bottom surface of the first engaging portion 51 is provided with a guide slope.

During the assembly, with 5 alignment draw-in grooves 11 of buckle, then lock inner cup 2 and terminal board 1 hard slightly for the domatic slip of the direction of first joint portion 51 for second joint portion 12, until first joint portion 51 is located the below of second joint portion 12, just realized the connection of inner cup 2 and terminal board 1.

Preferably, the bottom surface of the second engaging portion 12 is recessed upwards to form a limiting groove 13, the end of the first engaging portion 51 is bent upwards to form a third engaging portion 52, and the third engaging portion 52 can be engaged into the limiting groove 13. The stopper groove 13 is engaged with the third engaging portion 52, so that the reliability of the engagement connection between the inner lid 2 and the terminal board 1 can be improved.

As shown in fig. 2, the enclosing plate 24 is preferably provided with notches 25 at both sides of the connection part with the buckle 5. Therefore, the length of the connecting part 53 of the buckle 5 is prolonged, so that the swinging elasticity of the connecting part 53 is larger, and the clamping of the buckle 5 is more convenient. Further, the outer wall of the buckle 5 and the outer wall of the shroud 24 are flush with the side wall of the terminal plate 1 (the outer wall and the outer side wall referred to herein are both the sides relatively far from the chamber formed by the buckling of the inner lid 2 and the terminal plate 1). In this embodiment, buckle 5's outer wall and inner cup 2's lateral wall parallel and level to the lateral wall of terminal block 1 and inner cup 2's lateral wall parallel and level make whole plug support's lateral wall level and smooth, beautifully just conveniently wrap up the shell in order to make power plug.

As shown in fig. 4 to 6, the terminal board 1 is optionally provided at its edge with a card hole 18, and the card hole 18 is a through hole penetrating the upper and lower surfaces of the terminal board 1. The lateral wall of the enclosing plate 24 is provided with a withdrawing groove 241, the withdrawing groove 241 is recessed inwards relative to the lateral wall of the enclosing plate 24, and the bottom of the withdrawing groove 241 is connected with the buckle 5. The bottom of buckle 5 is barb structure, and in the barb structure lock hole 18 was withheld to buckle 5, it was located terminal board 1 lower surface to barb structure top surface to realize being connected of inner cup 2 and terminal board 1.

Preferably, as shown in fig. 5, the bottom end face of the apron 24 is provided with a plurality of positioning pins 21, and the terminal plate 1 is provided with positioning holes 19 matching the positioning pins 21. When the inner cap 2 and the terminal plate 1 are engaged, the positioning pin 21 is located in the positioning hole 19. The positioning pins 21 and the positioning holes 19 are provided to ensure the accuracy of the fitting position of the inner cap 2 with respect to the terminal plate 1.

Of course, the positioning pin 21 may be provided on the terminal plate 1, and the positioning hole 19 matching the positioning pin 21 may be provided on the bottom end face of the apron 24.

Preferably, as shown in fig. 2, the terminal plate 1 is provided with a glue overflow hole 15. The glue overflow hole 15 is a through hole penetrating the upper and lower surfaces of the terminal plate 1. When the shell is moulded plastics to the plug support, the existence of excessive hole 15 of gluing, the material such as the plastic of being convenient for gets into the cavity that inner cup 2 and terminal block 1 lock formed through excessive hole 15 of gluing.

Preferably, a reinforcing rib 16 is arranged in the glue overflow hole 15, and the reinforcing rib 16 is bridged between the side walls of the glue overflow hole 15. Optionally, in this embodiment, the glue overflow hole 15 is a circular through hole, the reinforcing rib 16 is cross-shaped, the intersection point of the cross-shaped reinforcing rib 16 is located on the axis of the glue overflow hole 15, and four end portions of the cross-shaped reinforcing rib 16 are integrally formed with the inner wall of the glue overflow hole 15.

Preferably, as shown in fig. 2, one surface of the terminal plate 1 facing the inner lid 2 is provided with a limit rib 14, the limit rib 14 protrudes relative to the upper surface of the terminal plate 1, and the outer side wall of the limit rib 14 is attached to the inner wall of the enclosure 24.

In this embodiment, spacing sand grip 14 includes two, and two relative settings of spacing sand grip 14, because the inside wall of inner cup 2 is the curved surface, consequently, the outside wall of spacing sand grip 14 also is the curved surface to make the laminating of the inner wall of the lateral wall of spacing sand grip 14 and inner cup 2, reach the limiting displacement to inner cup 2. Thus, when the housing is injection-molded outside the plug holder, it can be further ensured that the inner lid 2 is correctly positioned with respect to the terminal board 1 by a large pressing external force.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The plug support is characterized by comprising an inner cover (2) and a terminal board (1), wherein pins (3) are arranged on the terminal board (1), the inner cover (2) is connected with the terminal board (1) in a buckling mode through a buckle (5), the inner cover (2) comprises a top plate (23) and a coaming (24), the coaming (24) surrounds the edge of the top plate (23) and is fixedly connected with the top plate (23), the buckle (5) is connected with the end face of the bottom of the coaming (24), and the terminal board (1) is provided with a clamping groove (11) or a clamping hole (18) matched with the buckle (5).

2. The plug holder according to claim 1, wherein the buckle (5) comprises a connecting portion (53) and a first clamping portion (51), the top of the connecting portion (53) is connected with the surrounding plate (24), the bottom of the connecting portion (53) is connected with the first clamping portion (51), a second clamping portion (12) matched with the first clamping portion (51) is arranged in the clamping groove (11), the second clamping portion (12) extends along the radial direction of the terminal board (1), and the first clamping portion (51) is located below the second clamping portion (12).

3. The plug bracket according to claim 2, characterized in that a limiting groove (13) is formed in the bottom surface of the second clamping portion (12), the end of the first clamping portion (51) is bent upwards to form a third clamping portion (52), and the third clamping portion (52) is clamped in the limiting groove (13).

4. The plug support according to claim 2, characterised in that the collar (24) is provided with notches (25) on both sides of its connection with the snap (5), the outer wall of the snap (5) and the outer wall of the collar (24) being flush with the side walls of the terminal strip (1).

5. The plug holder according to claim 1, wherein the collar (24) is provided with a receding groove (241), the receding groove (241) being recessed inwardly with respect to the collar (24), a groove bottom of the receding groove (241) connecting the catch (5), the terminal board (1) being provided with the card hole (18) matching with the catch (5).

6. The plug support according to any one of claims 1 to 5, wherein the end face of the bottom of the enclosure (24) is provided with a positioning pin (21), and the terminal board (1) is provided with a positioning hole (19) matching with the positioning pin (21);

or the terminal board (1) is provided with the positioning pin (21), and the bottom end face of the coaming (24) is provided with the positioning hole (19) matched with the positioning pin (21).

7. Plug support according to any one of claims 1 to 5, characterised in that the terminal strip (1) is provided with glue-overflow holes (15).

8. Plug holder according to claim 7, characterised in that a reinforcement rib (16) is provided in the glue-overflow aperture (15).

9. Plug support according to any one of claims 1 to 5, characterised in that the terminal board (1) is provided with a limiting rib (14), the side walls of the limiting rib (14) abutting against the inner side walls of the collar (24).