CN220107080U

CN220107080U - Electric connector grafting stopping structure

Info

Publication number: CN220107080U
Application number: CN202321413251.3U
Authority: CN
Inventors: 范东林; 金卫星
Original assignee: Suzhou Xinya Diantong Co ltd
Current assignee: Suzhou Xinya Diantong Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-11-28
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses an electric connector plugging stop structure, which is characterized in that: the plastic shell is provided with a plurality of insertion hole sites at equal intervals, and the stamping terminals are inserted and fixed in the insertion hole sites; the two ends of the plastic shell are respectively a matching end and an inserting end, the matching end is provided with a hollow cavity, and the inserting hole site extends from the inserting end of the plastic shell to the matching end and is communicated with the hollow cavity. According to the plugging and retaining structure of the electric connector, through a simple and reasonable matching structure, the concave clamping groove is utilized to replace a conventional convex clamping buckle, matching and fastening can be more conveniently carried out under the condition that the online alignment distance is reduced from 1.5mm to 1.25mm, the situation that the male and female are separated after matching is effectively prevented, the plugging and retaining structure is safer and firmer, meanwhile, the product size is smaller, and more space is saved.

Description

Electric connector grafting stopping structure

Technical Field

The present disclosure relates to connectors, and particularly to a plug retaining structure for an electrical connector.

Background

An electrical connector is a connecting device for electrically connecting wires, circuit boards and other circuit components, and is widely used in electronic appliances such as projectors, mobile phones, flat panels, televisions, etc. The electrical connector generally comprises a plastic housing and a plurality of terminal fixing pins inserted in the plastic housing at intervals, the terminal fixing pins of the common electrical connector are generally spaced more than 1.5mm apart, and in order to save space and reduce limitations when the electrical connector is selected, an electrical connector with smaller terminal fixing pin spacing is required, so that the use frequency of the electrical connector with the terminal fixing pin spacing of 1.25mm is increasing.

However, the conventional 1.25 mm-spacing electrical connector is usually not provided with a buckle structure due to structural limitation, and easy to fall off when the wires are connected in a wire-to-wire manner, while the conventional wire-to-wire buckle is generally in a convex design structure, so that the pairing limitation is larger, and the use requirement is difficult to meet.

Therefore, in combination with the above-mentioned technical problems, it is necessary to provide a new technical solution.

Disclosure of Invention

The utility model aims to provide an electric connector plug-in retaining structure which adopts a terminal fixing pin with smaller spacing, has higher miniaturization degree of products, saves space and is provided with a wire-to-wire buckle.

In order to solve the technical problems, the utility model provides an electric connector plugging stop structure, which comprises the following specific technical scheme:

an electric connector grafting stopping structure, its characterized in that: the plastic shell is provided with a plurality of insertion hole sites at equal intervals, and the stamping terminals are inserted and fixed in the insertion hole sites;

the two ends of the plastic shell are respectively a matching end and an inserting end, the matching end is provided with a hollow cavity, and the inserting hole site extends from the inserting end of the plastic shell to the matching end and is communicated with the hollow cavity;

the plastic shell is provided with a matching groove which is concave towards the inner side of the connector along the plugging direction of the connector so as to prevent the male and female from falling off during matching.

Preferably, the punching terminal includes a contact end, a rivet pin for connecting the power cord, and a connecting portion between the contact end and the rivet pin, the contact end extending out of the insertion hole and into the hollow cavity.

Preferably, an L-shaped elastic anti-falling bayonet is further arranged between the riveting pin and the connecting part, the outer end of the anti-falling bayonet points to the direction opposite to the insertion direction of the stamping terminal, and anti-falling hanging teeth matched with the anti-falling bayonet are arranged on the plastic shell so as to limit and prevent falling of the stamping terminal.

Preferably, the bottom of the cross section of the joint of the insertion hole site and the hollow cavity is stepped to form an anti-slip boss, the bottom side surface of the contact end is in a reverse Z shape, the height of the contact end is gradually reduced from one side close to the connecting part to the other side, and the contact end is limited by the anti-slip boss to prevent the terminal from sliding and shifting.

Preferably, the riveting pin comprises a riveting front pin and a riveting rear pin, the riveting front pin is located at one end of the stamping terminal far away from the contact end, the riveting rear pin is located between the riveting front pin and the connecting part, and the riveting front pin and the riveting rear pin are both of U-shaped structures.

Preferably, the connecting portion comprises two side plates arranged along the insertion direction of the punching terminal, the distance between one side of the two side plates, which is close to the riveting pin, and the other side of the two side plates, which is close to the contact end, is gradually reduced to a closed state to form a V-shaped structure, and the bottom of the contact end extends from the closed ends of the two side plates and is pressed and formed.

Preferably, the spacing of the insertion holes is less than or equal to 1.25mm.

The plugging and stopping structure of the electric connector has the following beneficial effects:

according to the plugging and retaining structure of the electric connector, through a simple and reasonable matching structure, the concave clamping groove is used for replacing a conventional convex clamping buckle, matching and fastening can be more conveniently carried out under the condition that the online alignment distance is reduced from 1.5mm to 1.25mm, the situation that the male and female are separated after matching is effectively prevented, the plugging and retaining structure is safer and firmer, meanwhile, the product size is smaller, and more space is saved;

additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an electrical connector with a plugging stop structure;

FIG. 2 is an exploded view of the plug stop structure of the electrical connector of FIG. 1;

FIG. 3 is a schematic view of the plastic housing of FIG. 1;

FIG. 4 is a schematic view of the stamped terminal of FIG. 1;

fig. 5 is a cross-sectional view of the electrical connector of fig. 1 in a plugging stop configuration.

Wherein, 1-plastic shell; 11-inserting a hole site; 12-mating grooves; 13-anti-falling hanging teeth; 14-anti-slip bosses; 2-stamping the terminal; 21-contact ends; 22-riveting the front foot; 23-riveting the rear foot; 24-preventing the falling off of the bayonet; 25-connection.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Examples

Referring to fig. 1 to 5, an electrical connector plugging stop structure comprises a plastic housing 1 and a stamped terminal 2 mounted in the plastic housing, wherein a plurality of insertion holes 11 are equidistantly arranged in the plastic housing 1, and the stamped terminal is inserted into and fixed in the insertion holes;

the two ends of the plastic shell 1 are respectively a matching end and an inserting end, the matching end is provided with a hollow cavity, and the inserting hole site extends from the inserting end of the plastic shell to the matching end and is communicated with the hollow cavity;

the outer side of the plastic shell 1 is provided with a matching groove 12 which is concave towards the inner side of the connector along the plugging direction of the connector so as to prevent the male and female from falling off during matching.

The stamped terminal 2 comprises a contact end 21, a rivet pin for connecting a power cord and a connecting portion 25 between the contact end and the rivet pin, wherein the contact end 21 extends out of the insertion hole 11 and into the hollow cavity.

An L-shaped elastic anti-falling bayonet 24 is further arranged between the riveting pin and the connecting portion 25, the outer end of the anti-falling bayonet points to the direction opposite to the insertion direction of the stamping terminal, and anti-falling hanging teeth 13 matched with the anti-falling bayonet are arranged on the plastic shell 1 so as to limit and prevent falling of the stamping terminal.

The bottom of the cross section of the joint of the insertion hole site 11 and the hollow cavity is in a step shape to form an anti-slip boss 14, the bottom side surface of the contact end 21 is in a reverse Z shape, the height of the contact end is gradually reduced from one side close to the connecting part 25 to the other side, and the contact end is limited by the anti-slip boss to prevent the terminal from sliding and shifting.

The riveting foot comprises a riveting front foot 22 and a riveting rear foot 23, the riveting front foot is located at one end of the stamping terminal far away from the contact end, the riveting rear foot is located between the riveting front foot and the connecting part, and the riveting front foot and the riveting rear foot are of U-shaped structures.

The connecting portion 25 includes two side plates arranged along the insertion direction of the punching terminal, the distance between one side of the two side plates, which is close to the riveting pin, and the other side of the two side plates, which is close to the contact end, is gradually reduced to a closed state to form a V-shaped structure, and the bottom of the contact end 21 is formed by extending and compacting the closed ends of the two side plates.

The spacing between the insertion holes 11 is less than or equal to 1.25mm.

In the plugging and retaining structure of the electrical connector of the embodiment, during assembly, the power line and the riveting pin are assembled, the power line is fixed through the riveting front pin 22 and the riveting rear pin 23, then the contact end 21 of the processing stamping terminal 2 is aligned with the insertion hole site 11 of the plastic shell 1 and inserted, the contact end enters the hollow cavity of the plastic shell, meanwhile, the anti-falling bayonet 24 is pressed and deformed to enter the rear of the anti-falling rack 13 and then rebounds, the bottom side of the contact end 21 is limited by the anti-sliding boss 14, and therefore the limit of front and rear freedom degree is realized to prevent falling. And when the electric connector is used for male-female opposite insertion, the opposite-fit groove 12 is in snap fit with the matching end of the opposite-fit groove, so that contact stability is ensured.

The beneficial effects of the utility model are as follows: through simple reasonable cooperation structure, utilize concave to the draw-in groove replace conventional evagination buckle, pair line interval by 1.5mm reduce to under the condition of 1.25mm also can be more convenient pair and fasten, effectively prevent that public mother from appearing the condition that drops after joining in marriage, safer firm, guarantee that the product volume is littleer simultaneously, save more space.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications and alternatives to the above embodiments may be made by those skilled in the art within the scope of the utility model.

Claims

1. An electric connector grafting stopping structure, its characterized in that: the plastic shell (1) is provided with a plurality of inserting hole sites (11) at equal intervals, and the stamping terminals are inserted and fixed in the inserting hole sites;

the two ends of the plastic shell (1) are respectively a matching end and an inserting end, the matching end is provided with a hollow cavity, and the inserting hole site extends from the inserting end of the plastic shell to the matching end and is communicated with the hollow cavity;

the outer side of the plastic shell (1) is provided with a matching groove (12) which is sunken towards the inner side of the connector along the plugging direction of the connector so as to prevent the male and female from falling off during matching.

2. The electrical connector plugging stop structure according to claim 1, wherein: the punching terminal (2) comprises a contact end (21), a riveting pin for connecting a power line and a connecting part (25) positioned between the contact end and the riveting pin, wherein the contact end (21) extends out of the insertion hole site (11) and into the hollow cavity.

3. The electrical connector plugging stop structure according to claim 2, wherein: an L-shaped elastic anti-falling clamping pin (24) is further arranged between the riveting pin and the connecting part (25), the outer end of the anti-falling clamping pin points to the direction opposite to the insertion direction of the stamping terminal, and anti-falling hanging teeth (13) matched with the anti-falling clamping pin are arranged on the plastic shell (1) so as to limit and prevent falling of the stamping terminal.

4. The electrical connector plugging stop structure according to claim 2, wherein: the bottom of the cross section of the joint of the insertion hole site (11) and the hollow cavity is in a step shape to form an anti-slip boss (14), the bottom side surface of the contact end (21) is in a reverse Z shape, the height of the contact end is gradually reduced from one side close to the connecting part (25) to the other side, and the contact end is limited by the anti-slip boss to prevent the terminal from sliding and shifting.

5. The electrical connector plugging stop structure according to claim 2, wherein: the riveting foot comprises a riveting front foot (22) and a riveting rear foot (23), the riveting front foot is located at one end of the stamping terminal far away from the contact end, the riveting rear foot is located between the riveting front foot and the connecting part, and the riveting front foot and the riveting rear foot are of U-shaped structures.

6. The electrical connector plugging stop structure according to claim 2, wherein: the connecting part (25) comprises two side plates which are arranged along the insertion direction of the stamping terminal, the spacing between one side of the two side plates, which is close to the riveting pin, is gradually reduced to a closed state to form a V-shaped structure, and the bottom of the contact end (21) is formed by extending and compacting the closed ends of the two side plates.

7. The electrical connector plugging stop structure according to claim 2, wherein: the spacing between the insertion holes (11) is less than or equal to 1.25mm.