CN215732522U - Plug connector and connector assembly - Google Patents

Abstract

The utility model discloses a plug connector and a connector assembly, wherein the plug connector comprises: the plug signal terminal comprises a terminal fixing part, a terminal contact part and a cable fixing connecting part, wherein the terminal contact part and the cable fixing connecting part are respectively positioned on two opposite sides of the plastic base, and the cable fixing connecting part is electrically connected with an inner conductor of the cable; the grounding pieces which are arranged on the two sides of the shielding layer of the cable and electrically connected with the shielding layer are respectively electrically connected with the shielding shell and the grounding shell; the grounding shell comprises a grounding plate and a butt-joint plate which are connected, the grounding plate is electrically connected with the grounding sheet, and the butt-joint plate is electrically connected with the metal shell of the butted socket connector; the plug signal terminal, the grounding shell and the plastic base are fixed together in an embedding and molding mode. Compared with the prior art, the electromagnetic shielding structure has excellent electromagnetic shielding performance, meets the development requirement of product miniaturization, and has excellent structural strength.

Description

Plug connector and connector assembly

Technical Field

The present invention relates to the field of electrical connectors, and more particularly, to a plug connector and a connector assembly.

Background

With the rapid development and popularization of information technology, the internet signal transmission technology is faster and faster, the coverage area of the internet of things is larger and larger, and the electric connector is widely applied to various electronic products as an important electromechanical element for connecting electric circuits to transmit signals and electric power. Wired-to-board connectors are used in various products such as smart consumer electronics, smart homes, self-service terminals, mobile phones, and the like, and the demand for them is increasing. Along with the miniaturization of products and the development of high-speed signal transmission, for example, in mobile phone products, the overall structures of a PLC control unit and an LED display are smaller and smaller, the signal transmission rate is higher and higher, and the wire-to-board connector required to be adopted meets the development requirements of product miniaturization while the transmission requirements are met.

Therefore, it is desirable to provide a connector that satisfies the miniaturization development requirement and has excellent electromagnetic shielding performance without interfering with transmission signals.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a plug connector, has splendid electromagnetic shield performance, and satisfies the miniaturized development demand of product.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a plug connector, includes plastic base, plug signal terminal, shielding casing, grounding piece and grounding shell, wherein:

the plug signal terminal comprises a terminal fixing part, a terminal contact part and a cable fixing connecting part, the terminal contact part and the cable fixing connecting part are respectively positioned on two opposite side surfaces of the plastic base, and the cable fixing connecting part is electrically connected with an inner conductor of a cable;

the grounding pieces which are arranged on two sides of the shielding layer of the cable and electrically connected with the shielding layer are respectively electrically connected with the shielding shell and the grounding shell;

the grounding shell comprises a grounding plate and a butt plate which are connected, the grounding plate is electrically connected with the grounding sheet, and the butt plate is electrically connected with the metal shell of the butted socket connector;

the plug signal terminal, the grounding shell and the plastic base are fixed together in an embedding and molding mode.

Preferably, the grounding shell further comprises an embedded fixing arm, and the embedded fixing arm is arranged on the butt joint plate and used for reinforcing the embedding strength of the grounding shell and the plastic base.

Preferably, the inlaying fixed arm extends from one side of the butt joint plate far away from the ground plate to the direction close to the ground plate.

Preferably, the grounding plate is provided with a grounding convex structure, and the butt plate is provided with a butt convex structure.

Preferably, the shield case includes a top plate, fixing claws provided on two short sides of the top plate which are opposed to each other, and a butting wall provided on one long side of the top plate and opposed to the butting plate.

A connector assembly comprising any one of the above plug connectors and further comprising a receptacle connector, wherein:

the socket connector comprises an insulating base, a socket signal terminal arranged on the insulating base and a metal shell connected with the insulating base;

when the plug connector is in butt joint with the socket connector, the plug signal terminals are in electrical contact with the socket signal terminals, and the metal shell is respectively and electrically connected with the shielding shell and the grounding shell.

Preferably, the metal shell is provided with a resilient arm, and when the plug connector is mated with the receptacle connector, the resilient arm is abutted with the mating plate.

Preferably, the plastic base comprises a base body, a groove structure and a fixing column, the groove structure and the fixing column are arranged on the base body, the fixing column divides the groove structure into a first embedding groove and a second embedding groove, and the butt joint plate is positioned on the outer wall of one side, away from the first embedding groove, of the second embedding groove;

the plug signal terminal comprises a first fixing part, a first contact part, a cable fixing and connecting part, a second contact part and a second fixing part which are sequentially connected, the first contact part and the second contact part are arranged on two inner walls opposite to the first embedding groove, and the second fixing part is fixed on the fixing column.

Preferably, the socket signal terminal includes a solder fixing portion, a first elastic contact portion, a connecting portion and a second elastic contact portion connected in sequence;

the insulating base comprises a terminal accommodating structure and a butt joint groove, the terminal accommodating structure comprises a terminal accommodating groove and a supporting column, the first elastic contact part is positioned on one side, away from the supporting column, of the terminal accommodating groove, and the second elastic contact part is positioned on one side, away from the terminal accommodating groove, of the supporting column;

when the plug connector is butted with the socket connector, the terminal accommodating structure is embedded into the first embedding groove, the fixing column is embedded into the butting groove, the first contact part is electrically contacted with the first elastic contact part, and the second contact part is electrically contacted with the second elastic contact part.

Preferably, a fixing through hole structure is arranged on a side wall of the butt joint groove far away from the terminal accommodating structure, a fixing arm is arranged on the metal shell, and the fixing arm is fixed in the fixing through hole structure.

The utility model has the beneficial effects that: by arranging the grounding shell, the grounding sheet is electrically connected with the cable shielding layer, and simultaneously, two surfaces of the grounding sheet are respectively electrically connected with the grounding plate and the shielding shell of the grounding shell; the grounding shell is a metal product and is arranged on the plastic base, so that the structural strength of the plug connector can be effectively improved, the plastic base is prevented from deforming and breaking in the plug process, and the service life of the plug connector is prolonged; the grounding shell is fixed on the plastic base in an embedding and forming mode, so that the assembly cost is saved, and the product yield is improved.

Drawings

Fig. 1 is a schematic structural diagram of a plug connector according to an embodiment of the utility model;

FIG. 2 is a cross-sectional view of a plug connector according to an embodiment of the present invention;

FIG. 3 is an exploded view of a plug connector according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a shield case according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a grounding shell according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a connector assembly in an embodiment of the utility model;

FIG. 7 is a cross-sectional view of a connector assembly in an embodiment of the utility model;

FIG. 8 is a schematic structural diagram of a receptacle connector according to an embodiment of the present invention;

fig. 9 is an exploded view of the socket connector according to the embodiment of the present invention.

Reference numerals: 100. a plug connector; 110. a plastic base; 111. a base body; 112. a first fitting groove; 113. a second fitting groove; 114. fixing a column; 120. a plug signal terminal; 121. a first fixed part; 122. a first contact portion; 123. a cable fixing connection part; 124. a second contact portion; 125. a second fixed part; 130. a shielding housing; 131. a top plate; 132. a fixing claw portion; 133. a butt wall; 140. a ground plate; 150. a grounding shell; 151. a ground plate; 151A, a grounding projection structure; 152. a butt plate; 152A, a butt joint bulge structure; 153. a fixed arm is embedded; 200. a receptacle connector; 210. an insulating base; 211. a terminal accommodating groove; 212. a support pillar; 213. a butt joint groove; 214. fixing the through hole structure; 220. a socket signal terminal; 221. welding the fixing part; 222. a first elastic contact portion; 223. a connecting portion; 224. a second elastic contact portion; 230. a metal housing; 231. a resilient arm; 232. a fixed arm; 300. a cable; 310. an inner conductor; 320. an insulating layer; 330. a shielding layer; 340. an outer coating layer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

The embodiment of the application provides a plug connector, which aims to meet the development requirements on miniaturization and signal transmission performance of a wire-to-board connector. In the present application, when the plug connector is mated with the receptacle connector, the direction of the plug connector relative to the receptacle connector is up, top, or top, and the opposite direction is down, bottom, or bottom.

As shown in fig. 1 to 5, the embodiment of the present application:

a plug connector 100 includes a plastic base 110, plug signal terminals 120, a shield case 130, a ground plate 140, and a ground shell 150. The plug signal terminals 120, the ground shell 150 and the plastic base 110 are fixed together by insert-molding (insert-molding).

The plug signal terminal 120 includes terminal fixing portions (121, 125), terminal contact portions (122, 124) and a cable fixing connection portion 123, and the terminal contact portions (122, 124) and the cable fixing connection portion 123 are respectively located on two opposite side surfaces of the plastic base 110. The cable 300 includes an inner conductor 310, an insulating layer 320, a shielding layer 330, and an outer coating layer 340, which are sequentially disposed from inside to outside. The cable fixing connection part 123 is electrically connected to the inner conductor of the cable 300.

The upper and lower sides of the shielding layer 330 are fixedly connected with the grounding plate 140, and the fixed connection mode can be selected by soldering. The grounding plate 140 on the upper side of the shielding layer 330 is electrically connected to the shielding shell 130, and the grounding plate 140 on the lower side of the shielding layer 330 is electrically connected to the grounding shell 150. The grounding shell 150 includes a grounding plate 151 and a docking plate 152 connected to each other, the grounding plate 151 is electrically connected to the grounding plate 140, and the docking plate 152 is electrically connected to the metal shell 230 of the docked receptacle connector 200 (shown later).

According to the electromagnetic shielding device, the grounding shell is arranged, the grounding sheet is electrically connected with the cable shielding layer, meanwhile, the two surfaces of the grounding sheet are respectively electrically connected with the grounding plate and the shielding shell of the grounding shell, when the plug connector is butted with the socket connector, the metal shell of the socket connector is electrically contacted with the butting plate of the grounding shell and the shielding shell, the omnibearing electromagnetic shielding can be realized, the stability of grounding shielding is improved, and the plug connector and the connector assembly have excellent electromagnetic shielding performance; the grounding shell is a metal product and is arranged on the plastic base, so that the structural strength of the plug connector can be effectively improved, the plastic base is prevented from deforming and breaking in the plug process, and the service life of the plug connector is prolonged; the grounding shell is fixed on the plastic base in an embedding and forming mode, so that the assembly cost is saved, and the product yield is improved.

Preferably, as shown in fig. 3 and 5, the grounding shell 150 further includes an insert fixing arm 153, and the insert fixing arm 153 is disposed on the docking plate 152 for enhancing the insert strength between the grounding shell 150 and the plastic base 110, thereby facilitating to enhance the structural strength of the plug connector 100. More specifically, the mounting fixing arm 153 extends from a side of the docking plate 152 away from the ground plate 151 to a direction close to the ground plate 151, so as to further improve the mounting strength between the ground housing 150 and the plastic base 110.

Preferably, the grounding plate 151 is provided with a grounding protrusion structure 151A, and the grounding protrusion structure 151A is used to improve the contact tightness between the grounding plate 151 and the grounding plate 140, so as to achieve stable and reliable electrical contact. The abutting plate 152 is provided with an abutting convex structure 152A, the abutting convex structure 152A is used for improving the contact tightness between the abutting plate 152 and the metal shell 230, the connector assembly is guaranteed to have excellent electromagnetic shielding performance, meanwhile, the plugging force between the plug connector 100 and the socket connector 200 is increased, for a thin and long integral structure in a miniaturized product, the socket connector 200 can be ensured to be fully contacted and hung on the plug connector 100, and the contact stability between the plug signal terminal 120 and the socket signal terminal 220 is improved.

Preferably, the shield case 130 includes a top plate 131, fixing claw portions 132 provided on both short sides of the top plate 131 disposed opposite to each other, and a butting wall 133 provided on one long side of the top plate 131 and disposed opposite to the butting plate 152. Shielding shell 130 and butt joint board 152 wrap up plastic base 110 except the one side of pegging graft with socket connector 200, remaining five sides, and when docking with socket connector 200, metal casing 230 and shielding shell 130 and butt joint board 152 electrical contact realize the electromagnetism and shield entirely, can effectively prevent to take place signal interference or signal leakage.

As shown in fig. 6 to 7, embodiments of the present application further provide a connector assembly including any one of the plug connectors 100 described above, and further including a receptacle connector 200. The receptacle connector 200 includes an insulative base 210, receptacle signal terminals 220 disposed on the insulative base 210, and a metal shell 230 coupled to the insulative base 210.

When the plug connector 100 is mated with the receptacle connector 200, the plug signal terminals 120 are electrically contacted with the receptacle signal terminals 220, and the metal shell 230 is electrically connected with the shielding shell 130 and the grounding shell 150, respectively.

Preferably, the metal shell 230 is provided with a resilient arm 231, and when the plug connector 100 is mated with the receptacle connector 200, the resilient arm 231 abuts against the mating plate 152. The elastic arm 231 has a guiding function in the process of butting the plug connector 100 and the socket connector 200, so that the butting position of the plug connector 100 is centered, and the stability of signal contact between the plug signal terminal 120 and the socket signal terminal 220 is ensured; meanwhile, the elastic arm 231 can effectively improve the pull-out force of the plug connector 100, and improve the stability of the connection between the plug connector 100 and the receptacle connector 200. The elastic arm 231 abuts against the abutting plate 152, and compared with the elastic arm 231 abutting against the plastic base 110, not only the electrical contact point between the grounding shell 150 and the metal shell 230 is increased, but also the plastic base 110 is prevented from being damaged in the process of abutting the plug connector 100 and the receptacle connector 200.

Preferably, as shown in fig. 2, the plastic base 110 includes a base body 111, a groove structure disposed on the base body 111, and a fixing post 114, the fixing post 114 divides the groove structure into a first engaging groove 112 and a second engaging groove 113, and the abutting plate 152 is located on an outer wall of the second engaging groove 113 on a side far away from the first engaging groove 112; the plug signal terminal 120 includes a first fixing portion 121, a first contact portion 122, a cable fixing connection portion 123, a second contact portion 124 and a second fixing portion 125 connected in sequence, the first contact portion 122 and the second contact portion 124 are disposed on two opposite inner walls of the first fitting recess 112, and the second fixing portion 125 is fixed on the fixing post 114.

Preferably, as shown in fig. 7, the receptacle signal terminal 220 includes a solder fixing portion 221, a first elastic contact portion 222, a connection portion 223, and a second elastic contact portion 224 connected in this order; the insulating base 210 includes a terminal accommodating structure and a mating groove 213, the terminal accommodating structure includes a terminal accommodating groove 211 and a supporting pillar 212, the first elastic contact portion 222 is located on a side of the terminal accommodating groove 211 away from the supporting pillar 212, and the second elastic contact portion 224 is located on a side of the supporting pillar 212 away from the terminal accommodating groove 211; when the plug connector 100 is mated with the receptacle connector 200, the terminal receiving structure is inserted into the first engaging recess 112, the fixing post 114 is inserted into the mating groove 213, the first contact portion 122 is electrically contacted with the first elastic contact portion 222, and the second contact portion 124 is electrically contacted with the second elastic contact portion 224, so as to improve the stability of signal contact. More specifically, one or more contact protrusions are disposed on the first and second elastic contact portions 222 and 224, and contact grooves are disposed on the first and second contact portions 122 and 124, respectively, to improve the contact stability of the terminals.

Preferably, a fixing through hole structure 214 is provided on a side wall of the docking slot 213 away from the terminal receiving structure, and a fixing arm 232 is provided on the metal housing 230, and the fixing arm 232 is fixed in the fixing through hole structure 214.

The insert molding process is a molding method in which a predetermined insert made of a different material is placed in a mold, and then resin is injected, and the molten material is bonded and solidified with the insert to form an integrated product.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a plug connector which characterized in that, includes plastic base, plug signal terminal, shielding casing, grounding piece and grounding shell, wherein:

the plug signal terminal comprises a terminal fixing part, a terminal contact part and a cable fixing connecting part, the terminal contact part and the cable fixing connecting part are respectively positioned on two opposite side surfaces of the plastic base, and the cable fixing connecting part is electrically connected with an inner conductor of a cable;

the grounding pieces which are arranged on two sides of the shielding layer of the cable and electrically connected with the shielding layer are respectively electrically connected with the shielding shell and the grounding shell;

the grounding shell comprises a grounding plate and a butt plate which are connected, the grounding plate is electrically connected with the grounding sheet, and the butt plate is electrically connected with the metal shell of the butted socket connector;

the plug signal terminal, the grounding shell and the plastic base are fixed together in an embedding and molding mode.

2. The plug connector of claim 1, wherein: the grounding shell further comprises an embedded fixing arm, and the embedded fixing arm is arranged on the butt joint plate and used for reinforcing the embedding strength of the grounding shell and the plastic base.

3. The plug connector of claim 2, wherein: the inlaying fixing arm extends from one side of the butt joint plate far away from the ground plate to the direction close to the ground plate.

4. The plug connector of claim 1, wherein: the grounding plate is provided with a grounding convex structure, and the butt joint plate is provided with a butt joint convex structure.

5. The plug connector of claim 1, wherein: the shielding shell comprises a top plate, fixing claw parts arranged on two short sides of the top plate, and a butt joint wall arranged on one long side of the top plate and opposite to the butt joint plate.

6. A connector assembly comprising the plug connector of any one of claims 1 to 5, and further comprising a receptacle connector, wherein:

the socket connector comprises an insulating base, a socket signal terminal arranged on the insulating base and a metal shell connected with the insulating base;

when the plug connector is in butt joint with the socket connector, the plug signal terminals are in electrical contact with the socket signal terminals, and the metal shell is respectively and electrically connected with the shielding shell and the grounding shell.

7. The connector assembly of claim 6, wherein: and the metal shell is provided with an elastic arm, and when the plug connector is butted with the socket connector, the elastic arm is abutted against the butt joint plate.

8. The connector assembly of claim 6, wherein: the plastic base comprises a base body, a groove structure and a fixing column, the groove structure and the fixing column are arranged on the base body, the fixing column divides the groove structure into a first embedding groove and a second embedding groove, and the butt joint plate is positioned on the outer wall of one side, away from the first embedding groove, of the second embedding groove;

the plug signal terminal comprises a first fixing part, a first contact part, a cable fixing and connecting part, a second contact part and a second fixing part which are sequentially connected, the first contact part and the second contact part are arranged on two inner walls opposite to the first embedding groove, and the second fixing part is fixed on the fixing column.

9. The connector assembly of claim 8, wherein: the socket signal terminal comprises a welding fixing part, a first elastic contact part, a connecting part and a second elastic contact part which are sequentially connected;

the insulating base comprises a terminal accommodating structure and a butt joint groove, the terminal accommodating structure comprises a terminal accommodating groove and a supporting column, the first elastic contact part is positioned on one side, away from the supporting column, of the terminal accommodating groove, and the second elastic contact part is positioned on one side, away from the terminal accommodating groove, of the supporting column;

when the plug connector is butted with the socket connector, the terminal accommodating structure is embedded into the first embedding groove, the fixing column is embedded into the butting groove, the first contact part is electrically contacted with the first elastic contact part, and the second contact part is electrically contacted with the second elastic contact part.

10. The connector assembly of claim 9, wherein: the side wall of the butt joint groove far away from the terminal containing structure is provided with a fixing through hole structure, the metal shell is provided with a fixing arm, and the fixing arm is fixed in the fixing through hole structure.

Images