CN211088544U

CN211088544U - Waterproof connector

Info

Publication number: CN211088544U
Application number: CN201922128100.3U
Authority: CN
Inventors: 詹忠诚; 柴红卫
Original assignee: Leoco Suzhou Precise Industrial Co Ltd
Current assignee: Leoco Suzhou Precise Industrial Co Ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-07-24
Anticipated expiration: 2029-12-02

Abstract

The utility model provides a waterproof connector comprises shell and connector main part, wherein, the connector main part includes insulator and a set of signal terminal, is equipped with the holding portion on the insulator, and a set of signal terminal is fixed to be buried underground on insulator's holding portion, its characterized in that: the signal terminal is provided with a contact part, an embedded part and a welding part, wherein the embedded part of the signal terminal is integrally formed in the fixing part of the insulating body, the embedded part of the signal terminal is provided with a rectangular columnar section with a cross section, the front surface and the back surface of the rectangular columnar section are respectively provided with at least one waterproof groove, and the first side surface and the second side surface of the rectangular columnar section are respectively provided with at least one waterproof boss. The scheme makes the signal terminal and the insulating body become a crank connecting interface with concave-convex cross difference due to the waterproof groove and the waterproof boss arranged at the embedding part of the signal terminal, and the waterproof leakage problem at the connecting interface is effectively solved.

Description

Waterproof connector

Technical Field

The utility model relates to an electric connector, in particular to waterproof connector.

Background

With the continuous improvement and upgrade of electronic products, electronic equipment, and electronic devices, the waterproof requirement for connectors (electrical connectors) is becoming higher and higher. In particular, electronic equipment, control modules and electronic devices used in outdoor and open air applications require waterproofing when connectors are required.

In the prior art, the waterproof connector has various structures and forms. A publication of chinese patent CN207165838U in 2018, 3 and 30 months authorizes a utility model patent named waterproof connector. In order to realize the waterproof purpose, the adopted measures are as follows: the front end of the connector shell is provided with a sealing groove used for being matched with the shell for sealing, and a potting body is arranged between the rear end of the connector shell and the rear end of the insulating main body. Although the technical scheme of the patent plays a positive role in improving the waterproof performance of the connector, the waterproof emphasis is placed on the sealing of the connector shell as most waterproof connectors. The emphasis on waterproofing is rarely placed on the junction of the signal terminal and the insulator body. However, in practical application, since one section of the signal terminal is embedded in the insulator in an integrated manner, the connection interface between the signal terminal and the insulator has a leakage problem, and moisture and liquid in the external environment can leak into the cavity provided with the control module and the control circuit through the interface at the joint of the signal terminal and the insulator.

In view of this, in order to avoid the infiltration of moisture and liquid in the external environment from affecting the characteristics and the service life of the electrical appliance, how to design a connector capable of preventing the leakage of the connection interface between the signal terminal and the insulating body is the subject of the research of the present invention.

Disclosure of Invention

The utility model provides a waterproof connector, its purpose is the waterproof seepage problem that solves signal terminal and insulator interface in the current connector.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a waterproof connector comprises a shell and a connector main body, wherein the connector main body comprises an insulating body and a group of signal terminals, a fixing part is arranged on the insulating body, and the group of signal terminals are fixedly embedded in the fixing part of the insulating body, and the waterproof connector is innovative in that: the signal terminal is provided with a contact part, an embedded part and a welding part, wherein the embedded part of the signal terminal is integrally formed in the fixing part of the insulating body, the embedded part of the signal terminal is provided with a rectangular columnar section with a cross section, the front surface and the back surface of the rectangular columnar section are respectively provided with at least one waterproof groove, and the first side surface and the second side surface of the rectangular columnar section are respectively provided with at least one waterproof boss.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, all be equipped with twice waterproof recess on the front and the back of rectangle column section, all be equipped with three waterproof boss simultaneously on the first side of rectangle column section and second side, wherein, three waterproof boss is arranged along rectangle column section length direction at a distance from, and the position of the first and third waterproof boss of correspondence of twice waterproof recess is arranged.

2. In the above scheme, the top surface of the waterproof groove and the corresponding front surface or back surface are in the same plane. The top surface of the waterproof boss is higher than the corresponding first side surface or second side surface.

3. In the above scheme, the waterproof bosses on the first side face and the waterproof bosses on the second side face are symmetrically arranged or staggered with the axis of the rectangular columnar section as a reference.

4. In the above scheme, a platform is arranged on the holding part of the insulation body, the platform is provided with an outer boss surrounding a circle, and a welding concave ring surface surrounding a circle is arranged on one surface of the outer boss facing the shell. And a circle of welding boss is arranged at the front end of the shell corresponding to the welding concave ring surface.

5. In the above scheme, the insulating body is provided with the shell and the buckling part, the number of the shells is at least one and the shells are arranged at the front part of the insulating body, and the contact part of the signal terminal is positioned in the shell. The shell is of a cylindrical structure, a first inner boss and a second inner boss which are used for sealing are arranged on the inner wall of the cylindrical structure in a surrounding mode in the circumferential direction, and the first inner boss and the second inner boss form annular steps with different layers on the inner wall of the cylindrical structure.

6. In the above scheme, the holding portion of the insulating body is provided with a hole, and the hole is located at the root of the signal terminal welding portion.

The utility model discloses a design principle and effect: this scheme sets up waterproof recess and waterproof boss in order to solve the waterproof seepage problem of current connector signal terminal and insulator interface, buries the portion of burying underground at the signal terminal on the rectangle column section of portion, when the portion of burying underground of signal terminal is fixed when burying underground in insulator holding portion through integrated into one piece mode, the portion of burying underground through waterproof design and insulator interface have become the crank throw interface of unsmooth intersection, this kind of crank throw interface can effectually prevent that aqueous vapor and liquid from carrying out the seepage through the interface. In addition, this scheme is for further improving water-proof effects, and the design has first interior boss and second interior boss on tubular structure's inner wall, and these bosss form the annular step of different aspect, can utilize annular step and corresponding sealing washer cooperation to play water-proof effects when connector and outside butt joint. In a word, the utility model discloses simple structure, the design is ingenious, has obviously improved through experimental test water-proof effects, consequently has substantive characteristics and progress.

Drawings

FIG. 1 is a perspective view of a connector body according to an embodiment of the present invention;

fig. 2 is an exploded perspective view of a connector body according to an embodiment of the present invention;

fig. 3 is a three-dimensional sectional view of a connector body according to an embodiment of the present invention;

fig. 4 is a perspective cross-sectional view of another perspective of the connector body according to the embodiment of the present invention;

fig. 5 is a perspective view of a signal terminal according to an embodiment of the present invention;

fig. 6 is a perspective view of another view angle of the signal terminal according to the embodiment of the present invention;

FIG. 7 is a perspective view of an embodiment of the present invention;

FIG. 8 is an exploded perspective view of an embodiment of the present invention;

fig. 9 is a perspective view of an outer shell according to an embodiment of the present invention.

In the above drawings: 1. a housing; 2. a connector body; 3. an insulating body; 4. a signal terminal; 5. a housing; 6. a holding part; 7. a fastening part; 9, a hole; 10. a first inner boss; 11. a second inner boss; 12. welding the concave ring surface; 13. an outer boss; 14. a contact portion; 15. an embedding part; 16. welding the part; 17. a waterproof groove; 18. a waterproof boss; 19. a front side; 20. a back side; 21. a first side surface; 22. a second side surface; 23. and (6) welding the lug boss.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): waterproof connector

As shown in fig. 1 to 9, the waterproof connector is composed of a housing 1 and a connector body 2 (see fig. 7, 8 and 9). The connector main body 2 includes an insulating body 3 and a set of signal terminals 4 (see fig. 1), and the insulating body 3 is provided with a housing 5, a holding portion 6 and a fastening portion 7 (see fig. 2). A set of eight signal terminals 4 is fixedly embedded in the holding portion 6 of the insulating body 3 (see fig. 1). The signal terminal 4 has a contact portion 14, an embedded portion 15, and a soldering portion 16 (see fig. 5 and 6), wherein the embedded portion 15 of the signal terminal 4 is integrally formed in the holding portion 6 of the insulating body 3 (see fig. 3 and 4). The embedded portion 15 of the signal terminal 4 has a rectangular column section with a cross section, at least one waterproof groove 17 is formed on each of the front surface 19 and the back surface 20 of the rectangular column section (see fig. 5 and 6), and at least one waterproof boss 18 is formed on each of the first side surface 21 and the second side surface 22 of the rectangular column section (see fig. 5 and 6). The front face 19 of the rectangular columnar section is perpendicular to the first side face 21 and the second side face 22, and the waterproof groove 17 is formed by punching.

Two waterproof grooves 17 are formed in the front face 19 and the back face 20 of the rectangular columnar section, and three waterproof bosses 18 are formed in the first side face 21 and the second side face 22 of the rectangular columnar section (see fig. 5 and 6). The three waterproof bosses 18 are arranged at intervals along the length direction of the rectangular columnar section, and the two waterproof grooves 17 are arranged corresponding to the first waterproof boss 18 and the third waterproof boss 18. The top surface of the waterproof groove 17 is in the same plane with the corresponding front surface 19 or back surface 20. The top surface of the waterproof boss 18 is higher than the corresponding first side surface 21 or second side surface 22 (see fig. 5 and 6). The waterproof bosses 18 on the first side surface 21 and the waterproof bosses 18 on the second side surface 22 are symmetrically arranged by taking the axis of the rectangular columnar section as a reference.

The holding portion 6 of the insulating body 3 is provided with a platform having a circumferential outer boss 13, and a circumferential welding concave ring surface 12 (see fig. 5) is provided on a surface of the outer boss 13 facing the housing 1. A ring of welding bosses 23 (see fig. 9) is provided at the front end of the housing 1 corresponding to the welding concave ring surface 12.

The housing 5 consists of two and is provided in front of the insulating body 3 (see fig. 2). The contact portions 14 of the signal terminals 4 are located within the housing 5 (see fig. 3). The housing 5 is a cylindrical structure, a first inner boss 10 and a second inner boss 11 for sealing are circumferentially arranged on the inner wall of the cylindrical structure, and the first inner boss 10 and the second inner boss 11 form annular steps with different layers on the inner wall of the cylindrical structure (see fig. 3).

The holding portion 6 of the insulating housing 3 is provided with a hole 9, and the hole 9 is located on the root of the soldering portion 16 of the signal terminal 4 (see fig. 3 and 4). The hole 9 is a positioning hole, and since the signal terminal 4 and the insulating body 3 (plastic) are integrally formed, if the signal terminal 4 does not have the positioning terminal of the hole 9 during production, the signal terminal 4 is easily displaced and deformed by the plastic, which affects the waterproof effect.

The insulating body 3 of the waterproof connector is made of light-transmitting plastic, and the shell 1 is made of light-tight plastic. During assembly, the insulating body 3 and the shell 1 are welded into a whole by adopting a laser process, so that a better waterproof effect can be achieved.

Other embodiments and structural changes of the present invention are described below as follows:

1. in the above embodiment, the set of signal terminals 4 is composed of eight (see fig. 2). The present invention is not limited to this, and the number of the signal terminals 4 can be determined according to actual needs, which can be easily understood and accepted by those skilled in the art.

2. In the above embodiment, two waterproof grooves 17 are provided on the front surface 19 and the back surface 20 of the rectangular cylindrical section, and three waterproof bosses 18 are provided on the first side surface 21 and the second side surface 22 of the rectangular cylindrical section (see fig. 5 and 6). However, the present invention is not limited to this, and besides the above embodiments, the waterproof groove 17 may be one, three, four, or even more. The waterproof bosses 18 may be one, two, four, or even more. These are readily understood and accepted by those skilled in the art.

3. In the above embodiment, the three waterproof bosses 18 are arranged at intervals along the length direction of the rectangular column, and the two waterproof grooves 17 are arranged corresponding to the first and third waterproof bosses 18 (see fig. 5 and 6). The invention is not so limited and other variations are permissible, as would be readily understood and accepted by those skilled in the art.

4. In the above embodiment, the waterproof bosses 18 on the first side surface 21 and the waterproof bosses 18 on the second side surface 22 are symmetrically arranged with reference to the axis of the rectangular cylindrical section (see fig. 5 and 6). However, the present invention is not limited thereto, and the waterproof bosses 18 on the first side 21 and the waterproof bosses 18 on the second side 22 may be arranged in a staggered manner with respect to the axis of the rectangular cylindrical section, which is easily understood and accepted by those skilled in the art.

5. In the above embodiment, the housing 5 is two and is provided at the front of the insulating body 3 (see fig. 2). The present invention is not limited thereto, but may be one, three or four, or even more, as will be readily understood and accepted by those skilled in the art.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a waterproof connector comprises shell (1) and connector main part (2), wherein, connector main part (2) include insulator (3) and a set of signal terminal (4), are equipped with on insulator (3) and fix a set of signal terminal (6), and a set of signal terminal (4) are fixed to be buried underground on the fixing portion (6) of insulator (3), its characterized in that: the signal terminal (4) is provided with a contact part (14), an embedded part (15) and a welding part (16), wherein the embedded part (15) of the signal terminal (4) is integrally formed in a fixing part (6) of the insulating body (3), the embedded part (15) of the signal terminal (4) is provided with a rectangular columnar section with a cross section, the front surface (19) and the back surface (20) of the rectangular columnar section are both provided with at least one waterproof groove (17), and the first side surface (21) and the second side surface (22) of the rectangular columnar section are both provided with at least one waterproof boss (18).

2. The waterproof connector according to claim 1, characterized in that: all be equipped with twice waterproof recess (17) on front (19) and the back (20) of rectangle column section, all be equipped with three waterproof boss (18) simultaneously on first side (21) and the second side (22) of rectangle column section, wherein, three waterproof boss (18) are arranged along rectangle column section length direction at a distance from, and two waterproof recess (17) correspond first and third waterproof boss (18) position and arrange.

3. The waterproof connector according to claim 1, characterized in that: the top surface of the waterproof groove (17) and the corresponding front surface (19) or the back surface (20) are in the same plane.

4. The waterproof connector according to claim 1, characterized in that: the top surface of the waterproof boss (18) is higher than the corresponding first side surface (21) or second side surface (22).

5. The waterproof connector according to claim 1, characterized in that: the waterproof bosses (18) on the first side surface (21) and the waterproof bosses (18) on the second side surface (22) are symmetrically arranged or staggered with the axis of the rectangular columnar section as a reference.

6. The waterproof connector according to claim 1, characterized in that: the fixing part (6) of the insulating body (3) is provided with a platform, the platform is provided with an outer boss (13) which surrounds a circle, and one surface of the outer boss (13) facing the shell (1) is provided with a welding concave ring surface (12) which surrounds a circle.

7. The waterproof connector according to claim 6, characterized in that: a circle of welding lug boss (23) is arranged at the front end of the shell (1) corresponding to the welding concave ring surface (12).

8. The waterproof connector according to claim 1, characterized in that: the insulating body (3) is provided with a shell (5) and a buckling part (7), at least one shell (5) is arranged at the front part of the insulating body (3), and the contact part (14) of the signal terminal (4) is positioned in the shell (5); the shell (5) is of a cylindrical structure, a first inner boss (10) and a second inner boss (11) which are used for sealing are arranged on the inner wall of the cylindrical structure in a surrounding mode in the circumferential direction, and annular steps with different layers are formed on the inner wall of the cylindrical structure by the first inner boss (10) and the second inner boss (11).

9. The waterproof connector according to claim 1, characterized in that: and a hole (9) is formed in the fixing part (6) of the insulating body (3), and the hole (9) is positioned on the root of the welding part (16) of the signal terminal (4).