CN219040890U

CN219040890U - Electric connector

Info

Publication number: CN219040890U
Application number: CN202222507709.3U
Authority: CN
Inventors: 朱鲁杰; 胡如根
Original assignee: Ningbo Fenghua Shenzhou Electric Connector Co ltd
Current assignee: Ningbo Fenghua Shenzhou Electric Connector Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-05-16
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses an electric connector, which comprises a socket and a plug, wherein the socket comprises a socket shell, a contact pin and a first locking component; the plug comprises a plug shell, a jack and a second locking component; the first locking assembly comprises at least two first mounting screws; the middle part of one end of the first mounting screw is provided with a first internal threaded hole, and the other end of the first mounting screw is axially extended with a first external threaded section; the first external thread section is higher than the socket shell; the second locking assembly comprises at least two second mounting screws; the second mounting screw comprises a second external thread section and a third external thread section, the second external thread section and the third external thread section are both higher than the plug shell, and the third thread section can be screwed into the first internal thread section; the end part of the second external thread section is provided with a second rotating part, at least one group of planes for clamping a tool are arranged on the outer peripheral surface of the second rotating part, and screws at two ends of the plug can be rotated by transversely screwing the rotating part to finish locking.

Description

Electric connector

Technical Field

The present utility model relates to an electrical connector.

Background

Besides meeting the general performance requirements, the electric connector has the particularly important requirements that the electric connector has to achieve good contact, reliable work and convenient maintenance, and whether the work reliability directly affects the normal work of a host circuit or not relates to the security risk of the whole host; the use method of the electric connector is that the plug is provided with the jack, the socket is provided with the contact pin, the plug and the socket are plugged in, the jack is contacted with the contact pin, and the plug and the socket are locked by screwing bolts at two ends of a movable product, so that the electric connector transmits electric signals. The traditional connector locking mode is completed by axially screwing a straight or cross screw, but for some special spaces, the axial operation is not carried out, and the traditional connector cannot be connected and locked according to the traditional method, so that the traditional connector cannot meet the environment using requirement of insufficient axial space.

Disclosure of Invention

The utility model aims to provide an electric connector which aims to solve the technical problems in the background technology.

In order to solve the technical problems, the aim of the utility model is realized as follows:

an electrical connector includes a receptacle and a plug, the receptacle including a receptacle housing, a pin, and a first locking assembly; the plug comprises a plug shell, a jack and a second locking component; the first locking assembly comprises at least two first mounting screws which are detachably mounted on the socket shell; the middle part of one end of the first mounting screw is provided with a first internal threaded hole, and the other end of the first mounting screw is axially extended with a first external threaded section; the first external thread section is higher than the socket shell; the second locking assembly comprises at least two second mounting screws which are detachably mounted on the plug shell; the second mounting screw comprises a second external thread section and a third external thread section, the second external thread section and the third external thread section are both higher than the plug shell, and the third external thread section can be screwed into the first internal thread hole; the end part of the second external thread section is provided with a second rotating part, and the peripheral surface of the second rotating part is provided with at least one group of planes for clamping a tool.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the first locking component and the second locking component are provided with fool-proof structures.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the internal threads of the first internal threaded holes of the two first mounting screws are not equal; and the third external thread sections of the two second mounting screws are respectively matched with the two first internal thread holes.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: after the first external thread section and the second external thread section are respectively provided with a first nut and a second nut, the first mounting screw and the second mounting screw are respectively axially limited in the socket shell and the plug shell.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the body of the first mounting screw comprises a stepped shaft, and a small-diameter section of the stepped shaft is adjacent to the first external thread section; the socket shell is provided with a first mounting hole matched with the stepped shaft; and after the end of the first mounting screw, where the first external thread section is located, passes through the first mounting hole, a first nut is connected.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the cross section of part or all shaft sections of the stepped shaft is regular polygon.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a positioning protrusion is arranged on the second mounting screw adjacent to the position where the third external thread section is positioned; the plug shell is provided with a second mounting hole, and a second nut is connected after a second external thread section of the second mounting screw penetrates out of the second mounting hole; the maximum outer diameter of the positioning protrusion is larger than the inner diameter of the second mounting hole.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the socket shell and the plug shell are made of PEI 1000.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the first locking component and the second locking component are made of stainless steel.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the jack has a claw portion including two claw leaves, and the inner edge of the claw She Duanbu is provided with a guide surface.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects: the plug screw is designed to be movable, the tail part is designed with a plane for clamping a tool, and screws at two ends of the plug can be rotated by transversely screwing the rotating part to finish locking, so that the problem that locking cannot be finished due to no operation space in the axial direction is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of a socket according to the present utility model;

FIG. 2 is a socket mating surface node diagram;

FIG. 3 is a schematic view of the overall structure of the plug of the present utility model;

fig. 4 is a plug mating face node diagram;

FIG. 5 is a schematic view of a first mounting screw configuration;

FIG. 6 is a schematic view of a second mounting screw configuration;

fig. 7 is a schematic view of a plug and receptacle assembly;

fig. 8 is a partial enlarged view at a in fig. 3.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, based on the examples given, which a person of ordinary skill in the art would obtain without undue burden, are within the scope of protection of the present application.

In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.

In the description of the present application, 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 or implicitly indicating the number of technical features indicated.

Referring in detail to fig. 1-7, an electrical connector comprises a receptacle 10 and a plug 20, the receptacle 10 comprising a receptacle housing 11, pins 12 and a first locking assembly; the plug 20 comprises a plug housing 21, a jack 22 and a second locking assembly; the pin 12 is inserted into the receptacle 22 of the plug by applying pressure axially; the first locking assembly comprises at least two first mounting screws 13 which are detachably mounted on the socket housing 11, a first internal threaded hole 1311 is formed in the middle of one end of each first mounting screw 13, and a first external threaded section 132 axially extends from the other end of each first mounting screw. Specifically, the body 131 of the first mounting screw 13 includes a stepped shaft having a small diameter section adjacent to the first external thread section 132; wherein the stepped shaft comprises a first shaft section 1312 and a second shaft section 1313; the first shaft section 1312 has an outer diameter that is greater than the outer diameter of the second shaft section 1313, and the second shaft section 1313 is nearest the first externally threaded section 132; the socket shell 11 is provided with a first mounting hole 112 which is matched with the stepped shaft, preferably, the cross section of part or all shaft sections of the stepped shaft is regular polygon, which can be quadrilateral or hexagonal, so that the contact area is increased, and the connection reliability of the socket shell and the socket screw is enhanced; the first external thread segment 132 is raised above the socket housing 11; after the first mounting screw 13 passes through the first mounting hole 112 from the end of the first externally threaded section 132, a first nut 133 is attached. The second locking assembly comprises at least two second mounting screws 23 which are detachably mounted to the plug housing 21; the second mounting screw 23 comprises a second external thread segment 231 and a third external thread segment 232, and the second external thread segment 231 and the third external thread segment 232 are both higher than the plug housing 21, and the third thread segment 232 can be screwed into the first internal thread segment 1311; the end of the second external thread segment 231 is provided with a second rotating part 2311, at least one group of planes for clamping a tool are formed on the outer circumferential surface of the second rotating part 2311, the outer diameter of the second mounting screw 23 is slightly smaller than the inner diameter of the second mounting hole 211, so that the second mounting screw can move (rotate) in the second mounting hole 211, the end of the second external thread segment 231 is provided with the second rotating part 2311, and a group of planes for clamping a tool are formed on the outer circumferential surface of the second rotating part 2311, for example, a hexagonal structure; thus, the second mounting screws 23 at the two ends of the plug can be rotated by transversely screwing the hexagonal plug to finish locking, and the problem that the locking cannot be finished because the axial direction has no operation space is solved. In this embodiment, a positioning protrusion 234 is preferably provided on the second mounting screw 23 adjacent to the third external thread segment 232; the plug housing 21 is provided with a second mounting hole 211, and the maximum outer diameter of the positioning protrusion 234 is larger than the inner diameter of the second mounting hole 211; after the second external thread section 231 of the second mounting screw 23 passes through the second mounting hole 211, a second nut 233 is connected; thus, after the first and

second nuts

133 and 233 are respectively attached to the first and second

male screw segments

132 and 231, the first and

second mounting screws

13 and 23 are axially restrained within the receptacle housing 11 and the plug housing 21, respectively. In contrast, after the first nut 133 and the second nut 233 are removed, the first mounting screw 13 and the second mounting screw 23 can be respectively pulled out from the first mounting hole 112 and the second mounting hole 211, and compared with the conventional structure of integrally forming the first mounting screw 13 and the second mounting screw 23 with the socket housing and the plug housing, the present embodiment can be conveniently and rapidly replaced after the corresponding parts are damaged.

Further, in order to prevent the contact from being misplaced, prevent the system from being shorted and damage the equipment, the first locking assembly and the second locking assembly in this embodiment are provided with foolproof structures. Specifically, it is preferable that the internal threads of the first internal thread holes 1311 of the two first mounting screws 13 are not equally large; the third externally threaded sections 232 of the two second mounting screws 23 are respectively fitted with two first internally threaded holes 1311. Specifically, it is preferable that the first female screw hole of the first socket right mounting screw 13a is M3, the first female screw hole of the first socket left mounting screw 13b is M2.5, and the corresponding left second mounting screw 23a is M3, and the right second mounting screw 23b is M2.5. Therefore, the plug and the socket can be smoothly installed only when being positioned at the correct installation position, and the problem of misplug can not occur.

In the present embodiment, the socket housing 11 and the plug housing 21 are preferably made of PEI 1000, and the material has advantages of dimensional stability, weather resistance, good flame retardancy, good heat resistance, good insulation performance, and the like. Further preferably, the first locking component and the second locking component are made of stainless steel and comprise a first mounting screw, a second mounting screw, a first nut and a second nut, and the first locking component and the second locking component also comprise necessary gaskets, and the materials are made of stainless steel, specifically 1Cr18Ni9Ti, so that the weather resistance of the locking component is greatly improved, the service life of the locking component is prolonged, and the problems of connection failure or difficult disassembly and maintenance caused by corrosion and the like are avoided.

Further preferably, the contact pin 12 and the jack 22 are subjected to tin bronze surface gold plating treatment, so that requirements of connector reliability, wear resistance and corrosion resistance are met; referring to fig. 8, the insertion hole 22 preferably has a claw portion including two claw leaves 2231, and the inner edge of the end of the claw leaf 2231 is provided with a guide surface 2231a; on the one hand, the jack claw is of a slotted design, the closing force can be reasonably controlled to be between 25 and 55g, compared with other products, the contact piece is larger, the closing force is relatively small, so that the friction coefficient is small when the pinholes are matched and separated, and the theoretical inserting and pulling times are better than 500 times. On the other hand, the guide surface 2231a is preferably tapered or spherical to facilitate self-centering of the pin 12 for easier insertion into the receptacle.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. An electrical connector comprising a socket (10) and a plug (20), the socket (10) comprising a socket housing (11), pins (12) and a first locking assembly; the plug (20) comprises a plug shell (21), a jack (22) and a second locking assembly; the method is characterized in that: the first locking assembly comprises at least two first mounting screws (13) which are detachably mounted on the socket shell (11); a first internal threaded hole (1311) is formed in the middle of one end of the first mounting screw (13), and a first external threaded section (132) axially extends from the other end of the first mounting screw; -said first male threaded section (132) is higher than said socket housing (11); the second locking assembly comprises at least two second mounting screws (23) which are detachably mounted on the plug housing (21); the second mounting screw (23) comprises a second external thread section (231) and a third external thread section (232), the second external thread section (231) and the third external thread section (232) are both higher than the plug housing (21), and the third external thread section (232) can be screwed into the first internal thread hole (1311); the end part of the second external thread section (231) is provided with a second rotating part (2311), and at least one group of planes for clamping a tool are formed on the outer peripheral surface of the second rotating part (2311).

2. An electrical connector as in claim 1 wherein: the first locking component and the second locking component are provided with fool-proof structures.

3. An electrical connector as in claim 2 wherein: the diameters of the internal threads of the first internal threaded holes (1311) respectively arranged on the two first mounting screws (13) are different; the third external thread sections (232) of the two second mounting screws (23) are respectively matched with the two first internal thread holes (1311).

4. An electrical connector as in claim 1 wherein: after the first external thread section (132) and the second external thread section (231) are respectively provided with the first nut (133) and the second nut (233), the first mounting screw (13) and the second mounting screw (23) are respectively axially limited in the socket shell (11) and the plug shell (21).

5. An electrical connector as in claim 4 wherein: the body (131) of the first mounting screw (13) comprises a stepped shaft, a small diameter section of which is adjacent to the first externally threaded section (132); the socket shell (11) is provided with a first mounting hole (112) which is matched with the stepped shaft; the first mounting screw (13) is connected with a first nut (133) after passing through the first mounting hole (112) from the end of the first external thread section (132).

6. An electrical connector as in claim 5 wherein: the cross section of part or all shaft sections of the stepped shaft is regular polygon.

7. An electrical connector as in claim 4 wherein: a positioning protrusion (234) is arranged on the second mounting screw (23) adjacent to the position where the third external thread section (232) is positioned; the plug housing (21) is provided with a second mounting hole (211), and a second nut (233) is connected after a second external thread section (231) of the second mounting screw (23) penetrates out of the second mounting hole (211); the maximum outer diameter of the positioning protrusion (234) is larger than the inner diameter of the second mounting hole (211).

8. An electrical connector as in claim 1 wherein: the socket housing (11) and the plug housing (21) are made of PEI 1000.

9. An electrical connector as in claim 1 wherein: the first locking component and the second locking component are made of stainless steel.

10. An electrical connector as in claim 1 wherein: the insertion hole (22) is provided with a claw part, the claw part comprises two claw blades (2231), and the inner edge of the end part of each claw blade (2231) is provided with a guide surface (2231 a).