CN113783030A

CN113783030A - Through-wall electric connector and electronic equipment

Info

Publication number: CN113783030A
Application number: CN202111079363.5A
Authority: CN
Inventors: 白云华; 汪晓华
Original assignee: Shenzhen Lianxin Precision Technology Co ltd
Current assignee: Shenzhen Lianxin Precision Technology Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-12-10
Anticipated expiration: 2041-09-15
Also published as: CN113783030B

Abstract

The invention discloses a through-wall electric connector which comprises a front shell assembly, a male terminal, a rear shell assembly and a tail assembly, wherein the front shell assembly is installed in the rear shell assembly and extends to the front side outside the rear shell assembly from the rear shell assembly, the tail assembly is installed at the lower side of the rear shell assembly, the front shell assembly comprises a female terminal assembly, the female terminal assembly is electrically connected with the male terminal in a plugging mode, and an external cable is electrically connected with the male terminal through the rear shell assembly. The invention also discloses electronic equipment comprising the through-wall electric connector. According to the embodiment of the invention, the male terminal and the female terminal assembly are connected by quick plug connection, so that the problems of unreliable electric connection, high product maintenance cost and the like caused by repeated disassembly of threads of the conventional products in the market are solved.

Description

Through-wall electric connector and electronic equipment

Technical Field

The invention relates to the technical field of connectors, in particular to a through-wall electric connector and electronic equipment.

Background

Electrical connectors are used more and more as various devices become more electrified. For safety and space reasons of the equipment, there is a need for an electrical connector for securely and reliably connecting the circuitry inside the box to the external circuitry. The connector needs to meet certain requirements on service life, strength and protection.

The current general solution on the market is as follows: the product is divided into an upper shell component and a lower shell component. Wherein inferior valve subassembly is the major function subassembly, includes: 1. the front end exposes (is connected with the copper bar inside the box body after the installation), the middle end is injection-molded in the insulator mould, the rear end adopts a connecting system of a press-riveting nut and an external wiring harness terminal, 2, a metal shell or a metal shielding layer in direct current contact with the box body meets the electromagnetic shielding requirement of a product, 3, the metal shell or a plastic shell meets the strength requirement, and 4, a tail accessory component meets the protection requirement between an external cable and the internal copper bar. The upper shell assembly mainly comprises three parts, namely an insulating support member, an outer shell and a waterproof member.

In this solution, a threaded connection is mainly used. The connector copper bar is connected with the internal copper bar by adopting threaded connection, the connector shell is connected with the control box body or the battery pack shell by adopting threaded connection, the connector copper bar is connected with an external circuit by adopting threaded connection, a threaded connector is adopted between the external accessory and the shell, and a threaded connector is adopted between the upper shell component and the lower shell component. In the installation process, a customer needs to install various specifications and screws, the screws between the upper shell assembly and the lower shell assembly need to be taken down firstly during maintenance, then the connecting screws between the copper bar and an external circuit are taken down, and then the flange head threads are screwed down. If need change the inferior valve subassembly, still need take off the connecting screw of copper bar and equipment inside, the installation screw between inferior valve subassembly and the equipment casing.

The threaded connection of multiple specification makes installation cost and maintenance cost on the high side, and threaded connection has serious influence to the dismouting life-span of product simultaneously.

Disclosure of Invention

The invention aims to provide a through-wall electric connector and electronic equipment, which can avoid the electric connection unreliability caused by repeated disassembly of threads.

In order to achieve the above object, a first aspect of the embodiments of the present invention discloses a through-wall electrical connector, which includes a front housing assembly, a male terminal, a rear housing assembly and a tail assembly, wherein the front housing assembly is mounted in the rear housing assembly and extends from the rear housing assembly to a front side outside the rear housing assembly, the tail assembly is mounted at a lower side of the rear housing assembly, the front housing assembly includes a female terminal assembly, the female terminal assembly is electrically connected to the male terminal in a plugging manner, and an external cable is electrically connected to the male terminal via the rear housing assembly.

As an alternative implementation, in the first aspect of the embodiment of the present invention, the front shell assembly further includes a front shell insulator mounted in the rear shell assembly, and a front shell support, and one end of the female terminal assembly is located in the front shell insulator, and the other end of the female terminal assembly protrudes from the front side of the rear shell assembly through the front shell support.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the female terminal assembly includes a copper bar and a female terminal body, the female terminal body is installed in an accommodating space provided at one end of the copper bar, the accommodating space is located in the front shell insulator, and the other end of the copper bar extends out of the front side of the rear shell assembly via the front shell insulator and the front shell supporting member;

or/and, the backshell subassembly includes backshell shell, backshell insulator and the waterproof circle of panel, the backshell insulator is installed in the backshell shell, preceding shell insulator is located in the backshell insulator, the waterproof circle of panel is located the front end terminal surface of backshell shell, the waterproof circle of panel will through the screw preceding shell support piece and preceding shell insulator are fixed in the backshell shell.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the copper bar is formed into the accommodating space by press forming.

As an optional implementation manner, in the first aspect of the embodiments of the present invention, the female terminal body includes a female terminal housing and a contact terminal, the contact terminal is installed in the female terminal housing, and the male terminal and the contact terminal are electrically connected by plugging.

As an alternative implementation, in the first aspect of the embodiments of the present invention, the contact terminal includes a support and a plurality of contact pieces, the support strings the plurality of contact pieces together to form the plurality of contact pieces into an annular structure, the contact pieces include a first contact arm and a second contact arm, the first contact arm is located inside the annular structure and is used for contacting with the male terminal, the second contact arm is located outside the annular structure and is used for contacting with the female terminal housing, and the first contact arm has a double-curved-surface structure.

As an alternative implementation, in the first aspect of the embodiment of the present invention, the tail assembly includes a flange head, a wire shielding crimp ring, and a shielding contact ring, the flange head is screwed to the lower side of the rear housing assembly, the wire shielding crimp ring is located in the flange head, the wire shielding crimp ring is installed in the shielding contact ring, and an external cable is electrically connected to the male terminal through the flange head and the wire shielding crimp ring.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the tail assembly further includes a shielding contact ring support, the shielding contact ring support is located in the flange head, the shielding contact ring is provided with a plurality of elastic claws extending inward, the shielding contact ring support is provided with a hollow groove, the shielding contact ring is fastened to an outer side of the shielding contact ring support, the elastic claws penetrate through the hollow groove and extend into an inner side of the shielding contact ring support, and the wire shielding crimping ring is fastened in a space surrounded by the elastic claws;

or/and, the tail assembly further comprises a wire waterproof ring, the wire waterproof ring is installed at the bottom in the glan head, and the bottom in the glan head is far away from one side of the rear shell assembly.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the through-wall electrical connector further includes a male terminal positioning rubber core, the male terminal positioning rubber core is installed at the rear portion of the rear housing assembly, and a part of the male terminal is located in the male terminal positioning rubber core and is clamped with the male terminal positioning rubber core.

The second aspect of the embodiment of the invention discloses an electronic device, which comprises the through-wall electric connector of the first aspect of the embodiment of the invention.

Compared with the prior art, the invention has the beneficial effects that:

according to the embodiment of the invention, the male terminal and the female terminal assembly are connected by quick plug connection, so that the problems of unreliable electric connection, high product maintenance cost and the like caused by repeated disassembly of threads of the conventional products in the market are solved.

Drawings

Fig. 1 is a schematic structural diagram of a wall-through electrical connector according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the wall-penetrating electrical connector according to the embodiment of the present invention connected to an external cable;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an exploded view of FIG. 2;

FIG. 5 is a schematic structural diagram of a rear housing assembly according to an embodiment of the present invention;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic view of a fitting structure of the rear housing insulator and the male terminal positioning rubber core according to the embodiment of the invention;

FIG. 8 is a schematic structural diagram of a front shell assembly according to an embodiment of the present invention;

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

fig. 10 is an exploded view of the female terminal body according to the embodiment of the present invention;

FIG. 11 is an exploded view of a contact terminal according to an embodiment of the present invention;

FIG. 12 is a schematic view of one of the contact pads according to one embodiment of the present invention;

FIG. 13 is a schematic view of another embodiment of the present invention showing one of the contact pads;

FIG. 14 is a schematic view of another embodiment of the present invention showing a contact sheet in another orientation;

fig. 15 is a schematic view of a structure of the contact sheet matching according to the embodiment of the invention;

FIG. 16 is a schematic structural view of a stent according to an embodiment of the present invention;

FIG. 17 is a schematic view of another alternative contact of the present invention in one orientation;

FIG. 18 is a schematic view of another alternative contact configuration according to an embodiment of the present invention;

fig. 19 is a schematic structural view of a contact terminal according to an embodiment of the present invention;

fig. 20 is a schematic structural diagram of a copper bar according to an embodiment of the present invention;

fig. 21 is another schematic structural diagram of a copper bar according to an embodiment of the present invention;

FIG. 22 is a schematic structural diagram of a tail assembly according to an embodiment of the present invention;

FIG. 23 is a schematic structural view of a tail assembly (with the Glan head removed) according to an embodiment of the present invention;

FIG. 24 is a cross-sectional view of a tail assembly of an embodiment of the present invention;

FIG. 25 is a schematic structural view of a shield contact ring support of an embodiment of the present invention;

fig. 26 is a schematic view of the mating structure of the shield contact ring and the wire shield crimp ring according to the embodiment of the present invention;

fig. 27 is a schematic structural view of a shield contact ring according to an embodiment of the present invention;

FIG. 28 is a schematic structural view of a male terminal positioning rubber core according to an embodiment of the present invention;

fig. 29 is a schematic structural view of a male terminal according to an embodiment of the invention.

In the figure: 10. a rear housing assembly; 11. a rear housing shell; 12. a rear case insulator; 13. a waterproof ring of the panel; 20. a front housing assembly; 21. a front case insulator; 211. an installation position; 22. a contact terminal; 221. an annular structure; 2211. a first contact pad; 22101. a first portion; 22102. a second portion; 22111. a first contact arm; 22112. a second contact arm; 22113. a first moving leaf spring; 22114. a first card slot; 22115. a first rack space; 2212. a contact piece; 22121. a moving spring plate; 2213. a contact piece; 222. a support; 2221. a boss portion; 2222. a recessed portion; 2214. a second contact pad; 22141. a third contact arm; 22142. a fourth contact arm; 22143. a second moving leaf spring; 22144. a second card slot; 22145. a second rack space; 23. a female terminal housing; 231. a first plug; 232. a second plug; 24. copper bars; 241. an accommodating space; 242. riveting; 243. riveting; 25. a front shell support; 30. a tail assembly; 31. a glan head; 32. a shield contact ring; 321. an elastic claw; 322. an opening; 33. a wire shielding crimp ring; 34. a shield contact ring support; 341. a clamping part; 342. hollowing out the grooves; 35. a waterproof coil of the wire; 36. the male terminal positioning rubber core; 361. a first rubber core; 362. a second rubber core; 3611. a first stopper; 3612. a second limiting block; 3613. a first annular projection; 40. a male terminal; 41. a male terminal front end; 42. a male terminal rear end; 43. a second annular projection; 50. a cable.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Referring to fig. 1 to 6, a through-wall electrical connector includes a front housing assembly 20, a male terminal 40, a rear housing assembly 10 and a tail assembly, wherein the front housing assembly 20 is installed in the rear housing assembly 10 and extends from the rear housing assembly 10 to the front side of the outside of the rear housing assembly 10, the tail assembly is installed at the lower side of the rear housing assembly 10, the front housing assembly 20 includes a female terminal assembly electrically connected to the male terminal 40 in a plug-in manner, and an external cable 50 passes through the rear housing assembly 10 and electrically connects to the male terminal 40 or passes through the rear housing assembly and the tail assembly and then electrically connects to the male terminal 40.

In the preferred embodiment of the present invention, the plug-in connection between the male terminal 40 and the female terminal assembly is used to achieve the electrical connection, instead of the conventional through-wall electrical connector, which is threaded to achieve the electrical connection, thereby avoiding the problems of unreliable electrical connection and high product maintenance cost caused by multiple times of disassembly.

The backshell assembly 10 primarily provides mechanical and electrical protection for the connector. Referring to fig. 5 and 6, the waterproof structure mainly includes a rear shell 11, a rear shell insulator 12, and a panel waterproof ring 13, the rear shell insulator 12 is installed in the rear shell 11, the front shell insulator 21 is located in the rear shell insulator 12, the panel waterproof ring 13 is located at the front end face of the rear shell 11, and the panel waterproof ring 13 fixes the front shell support and the front shell insulator 21 in the rear shell 11 by screws. The waterproof panel ring 13 is used to ensure the waterproof performance of the front side of the through-wall electric connector, and together with the waterproof wire ring related to the rear side, the waterproof performance of two connectors of the through-wall electric connector and the external connector is ensured.

The front housing assembly 20 is a core functional component of the wall-through electrical connector, and as shown in fig. 8 and 9, it mainly includes a front housing insulator 21, a front housing support 25, and a female terminal assembly, the front housing insulator 21 is installed in the rear housing assembly 10, specifically, the rear housing insulator 12 in the rear housing shell 11, one end of the female terminal assembly is located in the front housing insulator 21, and the other end extends from the front side of the rear housing assembly 10 through the front housing support 25. One end of the female terminal assembly located in the rear housing assembly 10 is connected with an external cable through a male terminal, and one end of the female terminal extending out of the rear housing assembly 10 is connected with other cables or sockets, so that the connection of the circuit is realized.

Wherein, female terminal subassembly includes copper bar 24 and female terminal body again, and female terminal body is installed in the accommodation space that copper bar 24 one end set up, and the accommodation space is arranged in preceding shell insulator 21, and the other end of copper bar 24 stretches out from the front side of backshell subassembly 10 via preceding shell insulator 21 and preceding shell support piece 25, then fixes waterproof circle 13 of panel, preceding shell support piece 25 and preceding shell insulator 21 on backshell shell 11 through the screw.

Referring to fig. 10, the female terminal body mainly includes a female terminal housing 23, two contact terminals 22 and two plugs, namely a first plug 231 and a second plug 232, installed in the female terminal housing 23, for respectively plugging the front end and the rear end of the female terminal housing 23 to block the front end and the rear end of the contact terminal 22 in the female terminal. The contact terminal 22 is electrically connected with the male terminal in a plugging manner, and is electrically connected with the female terminal shell 23 in a contacting manner, so that the contact of the accommodating space and the copper bar 24 is electrically connected with the copper bar 24, and one end of the copper bar 24 extending out of the rear shell assembly 10 is connected with other cables or sockets.

It can be understood that the male terminal needs to pass through one of the plugs to achieve a plug-in relationship with the contact terminal 22, and the contact terminal 22 needs to be placed in the female terminal housing 23, so at least one of the two plugs is annular, that is, the plug on one side of the male terminal is annular and can be removed from the female terminal housing 23, and the plug on the other side is not limited as long as it can ensure to plug the other end of the female terminal housing 23, for example, it may be an integrally formed structure with the female terminal housing 23.

The contact terminals 22 may be any commercially available contact solution, and in the preferred embodiment of the invention, the contact terminals 22 use a blade contact scheme.

Referring to fig. 11-15, the blade contact terminal 22 mainly includes a ring structure 221 and a holder 222, wherein the ring structure 221 is surrounded by a plurality of first contact sheets 2211. The first contact sheet 2211 is provided with a first contact arm 22111 and a second contact arm 22112, and the first contact sheet 2211 is preferably formed by stamping, and the stamping direction is perpendicular to the direction of the first contact arm 22111 or the second contact arm 22112, that is, the thin edges on both sides of the first contact sheet 2211 are respectively used as the first contact arm 22111 and the second contact arm 22112.

By using the first contact sheet 2211 which is formed by punching and has a punching direction perpendicular to the direction of the first contact arm 22111 or the second contact arm 22112, the problem that the width and the distance of the contact sheet cannot be reduced due to factors such as die manufacturing can be avoided, the insertion and extraction force of the male and female terminals can be ensured, and the width between single-piece contacts can be reduced by changing the thickness of the punching sheet material, so that the first contact sheet 2211 can be used for small-sized terminals.

A plurality of first contact strips 2211 are strung together by the support 222 to form the loop structure 221. The first contact arm 22111 is located inside the annular structure 221, the second contact arm 22112 is located outside the annular structure 221, and the punched surfaces of two adjacent first contact pieces 2211 are in close contact. The first contact arms 22111 are used for mating with male terminals to perform an electrical connector function, and thus contact the first contact arms 22111 of all the first contact strips 2211 when the male terminals are mated with the contact terminals 22. The contact piece design using the single-piece stamping part can ensure that other contact pieces can be effectively contacted even if the single-piece wire is broken, thereby ensuring the reliability of the contact scheme.

Adopt the piece formula blanking spare, make the electrical contact connect the thixotropy by the line of wire spring more face contact, increased area of contact, the effectual contact resistance that has reduced has had the characteristic of the low plug power of wire spring again when increasing the terminal current-carrying to reach the dual purpose that increases current-carrying capacity, improve life.

The ring structure 221 is provided with a specific shape according to the shape of the male terminal, for example, a circular ring structure is shown in fig. 11, but may be a rectangular, oval, or triangular or other polygonal structure in other embodiments.

In addition, in a preferred embodiment of the present invention, the first contact arm 22111 has a double-curved-surface structure, and thus is configured as a double-curved-surface structure, which can increase the contact area between the first contact arm 22111 and the male terminal, and reduce the contact resistance between the contact pair (the first contact arm 22111 and the male terminal).

As an implementation manner of the double curved surface, in the first embodiment of the present invention, please refer to fig. 14, two ends of the first contact arm 22111 are bent towards the same side, where the same side refers to one side of the stamping surface, so that the end surface of the entire first contact arm 22111 contacting the male terminal is in a double curved surface structure.

In a preferred embodiment of the present invention, one end or both ends of the second contact arm 22112 extend to a side far away from the first contact arm 22111 to form a bending portion, and the bending portion is used for contacting with an inner wall of the female terminal housing 23 when the contact terminal 22 is mounted on the female terminal housing 23, so as to achieve electrical conduction. It can be understood that the bending part has certain elasticity, which can adjust the insertion and extraction force between the male terminal and the female terminal body.

In a preferred embodiment of the present invention, the first contact strip 2211 has an axisymmetrical structure in which a connection direction of the first contact strip 22111 and the second contact strip 22112 is a symmetry axis (axis a) which divides the first contact strip 2211 into a first portion 22101 and a second portion 22102, and the first portion 22101 and the second portion 22102 have the same structure.

In a preferred embodiment of the present invention, a first card slot 22114 and a first moving spring 22113 are disposed between the first contact arm 22111 and the second contact arm 22112 at two sides of the a axis, and the first moving spring 22113 is clamped into the first card slot 22114 of the other adjacent contact plates (fig. 15 shows that the moving spring 22121 of the contact plate 2212 is clamped into the card slot of the contact plate 2213). When the male terminal is inserted into the contact terminal 22, all the first contact pieces 2211 are interlocked, and all the first contact pieces 2211 form an interlocked whole, so that the contact reliability is ensured.

The first contact arm 22111 and the second contact arm 22112 are centered on the axis a, two ends of the two are bent toward the same side, one end of the first moving leaf 22113 is integrally formed in the first slot 22114, and the other end of the first moving leaf 22113 extends in a bending direction away from the first contact arm 22111 and the second contact arm 22112.

First support spaces 22115 are further formed between the first contact arm 22111 and the second contact arm 22112 on both sides of the axis a, and the supports 222 penetrate through the first support spaces 22115 to string all the first contact pieces 2211 into the annular structure 221.

Referring to fig. 16, the stent 222 includes a stent body, a fracture is formed on the stent body, a protrusion 2221 is formed on one side of the fracture, a recess 2222 matched with the protrusion 2221 is formed on the other side of the fracture, and when the protrusion 2221 is inserted into the recess 2222, the stent body forms an annular structure 221. The convex portion 2221 and the concave portion 2222 are provided in order to make the size of the loop formed by the entire contact terminal 22 float and adjustable within a certain range, ensuring the reliability of connection.

The projection 2221 may have a wedge-shaped structure, but other shapes may be used. The concave portion 2222 is matched with the shape of the convex portion 2221.

In the embodiment of the invention, the contact pieces can be made denser, the contact pieces are independent and linked, and the influence on the whole contact can be ignored even if a single broken wire appears in extreme conditions, so that the novel blade type contact technology is called as Bladetac technology.

As another implementation of the Bladetac technique, it is also possible to achieve the end surface of the contact terminal 22 in contact with the male terminal hyperboloid by twisting.

As shown in fig. 17-19, for illustration purposes, the contact strip is referred to herein as the second contact strip 2214 (corresponding to the first contact strip described above), the side of the second contact strip 2214 in contact with the male terminal is referred to as the third contact arm 22141 (corresponding to the first contact arm described above), and the side of the second contact strip 2214 in contact with the female terminal housing 23 is referred to as the fourth contact arm 22142 (corresponding to the second contact arm described above).

When the connection portion between the third contact arm 22141 and the fourth contact arm 22142 is twisted at a certain angle, the third contact arm 22141 has a double-curved-surface structure with the fourth contact arm 22142 as a reference surface. The torsion angle is set as required, and may be, for example, 2 ° or 5 °.

In addition, the bent portions may not be provided at both ends of the fourth contact arm 22142, so that the installation space may be reduced to some extent and the contact area between the fourth contact arm 22142 and the female terminal housing 23 may be increased.

A bracket space, referred to as a second bracket space 22145, is also provided to cooperate with the bracket, and a second slot 22144 and a second moving spring 22143 are provided to cooperate with two adjacent second contact sheets 2214. in contrast to the first embodiment, the other end of the second spring is bent to fit with one end of the second spring integrally formed with the second slot 22144, so that the installation space can be reduced.

The holder that mates with the second contact pad 2214 may be the holder shown in fig. 16.

In the preferred embodiment of the invention, the copper bar is designed to be square, the accommodating space is set to be cylindrical, the square copper bar is formed by punching, and a copper rivet pressing process is added, so that the material is saved, and meanwhile, the female terminal is ensured to have enough retention force when being pressed into the copper bar.

Referring to fig. 20, a square copper bar 24 is formed by stamping, then the middle portion of the square copper bar is bent to form an accommodating space 241, and the copper bar 24 below the accommodating space 241 is fixed by a rivet 242 through a crimping process. The accommodating space 241 is disposed in the mounting position 211 of the front shell insulator 21, and the other end of the copper bar 24 extends to the outside of the rear shell 11 through a long slot formed in the front shell insulator 21.

The copper bar 24 can also be processed in another way, as shown in fig. 21, one end of the square copper bar 24 is thinned and then bent to form an accommodating space 241, and then both ends of the thinned portion of the copper bar 24 are fixed by a rivet 243 compression joint process.

Referring to fig. 22 and 23, the tail assembly 30 includes a flange head 31, a wire shielding crimp ring 33 and a shielding contact ring 32, the flange head 31 is screwed to the lower side of the rear housing assembly 10, specifically, to the rear housing shell 11, the wire shielding crimp ring 33 is located in the flange head 31, the wire shielding crimp ring 33 is installed in the shielding contact ring 32, and the external cable passes through the flange head 31 and the wire shielding crimp ring 33 and is electrically connected to the male terminal.

The function of the wire shielding crimp ring 33 and the shielding contact ring 32 is to ensure reliable connection between the cable shielding layer and the connecting metal shell, thereby meeting the requirement of the product on electromagnetic shielding.

Specifically, referring to fig. 24-27, tail assembly 30 further includes a shield contact ring support 34 for providing support for shield contact ring 32 to facilitate insertion and removal of the shield ring from backshell assembly 10. Shielding contact ring support 34 is located and is located the gram head 31, shielding contact ring 32 is provided with a plurality of elastic claw 321 to inside extension, fretwork groove 342 has been seted up on shielding contact ring support 34, shielding contact ring lock joint is in the joint portion 341 in the outside of shielding contact ring support 34 (for the convenience of the installation of shielding contact ring 32 on shielding contact ring support 34, can set up an opening 322 at shielding contact ring 32), elastic claw 321 passes fretwork groove 342 and stretches into shielding contact ring support 34 inboard, electric wire shielding crimp ring 33 joint is in the space that a plurality of elastic claw 321 enclosed.

The shield contact ring support 34, on the other hand, also serves to prevent the male terminal positioning gel core 36 from backing out during normal use. Referring to fig. 3, the male terminal positioning rubber core 36 mainly functions to ensure the position of the male terminal and prevent the male terminal from being displaced when being pulled by vibration, impact or external force, which may cause electrical connection failure; this glue core adopts 1 or 2 insulating part combinations to form this function piece in this scheme, makes things convenient for the installation and the dismantlement of terminal.

Referring to fig. 3 and 28, the male terminal positioning rubber core 36 is installed at the rear portion of the rear housing assembly 10, and a portion of the male terminal is located in the male terminal positioning rubber core 36 and is clamped with the male terminal positioning rubber core 36. The male terminal positioning rubber core 36 is preferably formed by clamping a first rubber core 361 and a second rubber core 362, a plurality of first limiting blocks 3611 and second limiting blocks 3612 are respectively arranged in the first rubber core 361 and the second rubber core 362, wherein all the first limiting blocks 3611 are located on the same transverse plane in the male terminal positioning rubber core 36, all the second limiting blocks 3612 are also located on the same transverse plane in the male terminal positioning rubber core 36, and a certain gap exists between the two transverse planes, as shown in fig. 29, the male terminal includes a male terminal front end 41 and a male terminal rear end 42, wherein the male terminal front end 41 and the male terminal rear end 42 are integrally formed, and a second annular protrusion 43 is formed on the outer side between the two, and the second annular protrusion 43 is clamped between the first limiting blocks 3611 and the second limiting blocks 3612, so as to limit the male terminal. The front end 41 of the male terminal is connected with the female terminal assembly in a plug-in manner, and the rear end 42 of the male terminal is used for connecting with an external cable, and the connection with the external cable can be a crimping manner, a welding manner or other connection manners.

Referring to fig. 7 and 28, a first annular protrusion 3613 is disposed on the outer side of the male terminal positioning rubber core 36, and the shielding contact ring holder 34 is disposed in the flange head 31 and is connected to the lower side of the male terminal positioning rubber core 36, when the flange head 31 is screwed to the lower end of the rear case shell 11, the shielding contact ring holder 34 presses the first annular protrusion 3613 of the male terminal positioning rubber core 36 to abut against the end portion of the lower side of the rear case insulator 12, so as to prevent the male terminal positioning rubber core 36 from moving during normal use.

In addition, a wire waterproof ring 35 may be disposed at the bottom of the glan head 31, i.e. at the side far from the rear housing assembly 10, the shielding contact ring support 34 is located between the wire waterproof ring 35 and the male terminal positioning rubber core 36, and the wire waterproof ring 35 is used to ensure the waterproof performance of the tail of the wall-through electrical connector.

When the cable is used, the glan head is only required to be unscrewed from the rear shell 11, one end of the cable penetrates through the glan head, the wire waterproof ring 35 and the shielding contact ring bracket 34 (including the shielding contact ring and the wire shielding compression ring) to be in compression joint or welded with the rear end 42 of the male terminal, then the male terminal positioning rubber core 36 is buckled on the male terminal, and the glan head is screwed down to complete installation.

Example two

The second embodiment discloses an electronic device, which comprises the through-wall electric connector disclosed in the first embodiment.

Finally, it should be noted that: the above embodiments are only examples of the present invention, and should not be construed as limiting the scope of the present invention, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are intended to be covered by the claims.

Claims

1. The through-wall electric connector is characterized by comprising a front shell assembly, a male terminal, a rear shell assembly and a tail assembly, wherein the front shell assembly is installed in the rear shell assembly and extends to the front side outside the rear shell assembly from the rear shell assembly, the tail assembly is installed on the lower side of the rear shell assembly, the front shell assembly comprises a female terminal assembly, the female terminal assembly is electrically connected with the male terminal in a plugging mode, and an external cable is electrically connected with the male terminal through the rear shell assembly.

2. The through-the-wall electrical connector of claim 1, wherein the front housing assembly further comprises a front housing insulator mounted in the rear housing assembly and a front housing support member, one end of the female terminal assembly being located in the front housing insulator and the other end protruding from the front side of the rear housing assembly via the front housing support member.

3. The through-the-wall electrical connector of claim 2, wherein the female terminal assembly comprises a copper bar and a female terminal body, the female terminal body is mounted in an accommodating space provided at one end of the copper bar, the accommodating space is located in the front shell insulator, and the other end of the copper bar extends out of the front side of the rear shell assembly through the front shell insulator and the front shell support;

4. The through-the-wall electrical connector of claim 3, wherein the copper bar is formed into the accommodating space by punch forming.

5. A through-wall electrical connector as claimed in claim 3 wherein the female terminal body comprises a female terminal housing and a contact terminal mounted in the female terminal housing, the male terminal being electrically connected to the contact terminal by plugging.

6. A through-the-wall electrical connector as in claim 5 wherein the contact terminal comprises a support that strings the plurality of contact blades together in an annular configuration, and a plurality of contact blades comprising a first contact arm and a second contact arm, the first contact arm being located on an inner side of the annular configuration for contacting the male terminal and the second contact arm being located on an outer side of the annular configuration for contacting the female terminal housing, the first contact arm being of a hyperboloid configuration.

7. A through-the-wall electrical connector as in any one of claims 1-6 wherein the tail assembly comprises a gland head, a wire shield crimp ring and a shield contact ring, the gland head being threadably connected to the underside of the rear housing assembly, the wire shield crimp ring being located within the gland head, the wire shield crimp ring being mounted in the shield contact ring, an external cable being electrically connected to the male terminal through the gland head and the wire shield crimp ring.

8. The through-the-wall electrical connector of claim 7, wherein the tail assembly further comprises a shielding contact ring support, the shielding contact ring support is located in the flange head, the shielding contact ring is provided with a plurality of elastic claws extending inwards, hollow grooves are formed in the shielding contact ring support, the shielding contact ring is buckled on the outer side of the shielding contact ring support, the elastic claws penetrate through the hollow grooves and extend into the inner side of the shielding contact ring support, and the wire shielding compression joint ring is clamped in a space surrounded by the elastic claws;

9. A through-wall electrical connector as claimed in any one of claims 1 to 6 further comprising a male terminal positioning core mounted to the rear of the rear housing assembly, a portion of the male terminal being located in and snap-fitted to the male terminal positioning core.

10. An electronic device comprising the through-the-wall electrical connector of any one of claims 1-9.