CN217405736U

CN217405736U - Board end connector and connector assembly

Info

Publication number: CN217405736U
Application number: CN202220529360.0U
Authority: CN
Inventors: 金海伟; 尹绪引; 赖小林
Original assignee: Shenzhen Electric Connector Technology Co Ltd
Current assignee: Shenzhen Electric Connector Technology Co Ltd
Priority date: 2022-03-12
Filing date: 2022-03-12
Publication date: 2022-09-09
Anticipated expiration: 2032-03-12

Abstract

The utility model discloses a board end connector and connector assembly, its board end connector includes: plastic base, board end signal terminal and metal-back. The plastic base comprises a plastic body, a first supporting column and a first embedded groove, a terminal fixing groove is formed in the first supporting column, and a terminal accommodating groove is formed below the first embedded groove. The board end signal terminal is including weld part, n type contact connecting portion, transition connecting portion and the elastic contact portion that sets gradually, and n type contact connecting portion set up in the terminal fixed slot, and transition connecting portion set up in the terminal holding tank, and the elastic contact portion sets up in first gomphosis recess, and the extension opposite direction of transition connecting portion and elastic contact portion. The metal casing includes shielding wall and the ground connection wall of relative setting, and the ground connection wall setting is on the plastic body. Compared with the prior art, the utility model discloses claimed plate end connector has splendid contact stability ability and electromagnetic shield performance, and satisfies the miniaturized development demand of product.

Description

Board end connector and connector assembly

Technical Field

The utility model relates to an electric connector technical field especially relates to a board end connector and connector assembly.

Background

Along with the gradual popularization of the internet technology, the coverage area of the internet of things is larger and larger, and in a plurality of fields such as intelligent consumer electronics, digital home appliances, security monitoring and self-service terminals, board-to-board connectors are needed to be used, and the demand for the board-to-board connectors is increased sharply. Along with the miniaturization of products, the development of high-speed signal transmission, for example, in mobile phone products, products such as a PLC control unit and an LED display have smaller and smaller overall structures, and the signal transmission rate is higher and higher, and the requirements on the connection precision, the contact stability and the shielding performance of a board-to-board connector are higher and higher. Besides, the board-to-board connector is required to meet the transmission requirement, and the development requirement of product miniaturization is also required to be met.

Therefore, a board terminal connector and a connector assembly having excellent contact stability and electromagnetic shielding performance, which meet the demand for miniaturization, are needed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a board end connector and connector assembly, has splendid contact stability can and electromagnetic shielding performance, and satisfies the miniaturized development demand of product.

In order to realize the purpose, the utility model discloses the technical scheme who takes is:

the utility model provides a board end connector, includes plastic base, board end signal terminal and metal-back, wherein:

the plastic base comprises a plastic body, a first supporting column and a first embedding groove, wherein the first supporting column and the first embedding groove are arranged on the plastic body;

the plate end signal terminal comprises a welding part, an n-type contact connecting part, a transition connecting part and an elastic contact part which are sequentially arranged, wherein the n-type contact connecting part is arranged in the terminal fixing groove, the transition connecting part is arranged in the terminal accommodating groove, the elastic contact part is arranged in the first embedding groove, and the extension directions of the transition connecting part and the elastic contact part are opposite;

the metal casing includes relative shielding wall and the ground connection wall that sets up, the ground connection wall sets up on the plastic body.

Preferably, the n-type contact connection portion includes a first contact arm, a connection arm and a second contact arm, and a first contact protrusion is disposed on each of the first contact arm and the second contact arm.

Preferably, an upper side of the elastic contact portion is provided with a second contact protrusion protruding upward.

Preferably, the side wall of the n-type contact connection portion is provided with a fixing bayonet abutted against the inner wall of the terminal fixing groove.

Preferably, the fixing bayonet thorns are symmetrically distributed on the side wall of the bottom of the n-type contact connecting part close to one side of the first embedding groove.

A connector assembly comprising any of the above plate end connectors and further comprising a wire end connector, wherein:

the wire end connector comprises an insulating base, a wire end signal terminal, a shielding shell, a grounding sheet and a grounding shell, wherein the insulating base comprises an insulating body, and a second embedded groove and a second supporting column which are arranged on the insulating body; the wire end signal terminal comprises a first fixed contact part and a second fixed contact part, the first fixed contact part is arranged on the second embedding groove, and the second fixed contact part is arranged on the bottom surface of the second supporting column; the grounding sheet is electrically contacted with the shielding layer of the cable, the shielding shell and the grounding shell respectively;

work as the board end connector with when the line end connector is to inserting, first support column with second gomphosis recess gomphosis, first fixed contact portion with n type contact connecting portion electric connection, first gomphosis recess with second support column gomphosis, second fixed contact portion with elastic contact portion electric connection, the shielding wall with shielding shell direct electric connection, the ground connection wall with ground connection shell direct electric connection.

Preferably, the grounding wall includes a grounding plate, and the grounding plate is in direct electrical contact with the grounding shell when the plate-end connector is plugged into the line-end connector.

Preferably, a side wall of the ground plate, which is close to one side of the shielding wall, is provided with a fixing tongue piece extending downwards, and the fixing tongue piece is embedded into the plastic body and used for fixing the ground wall.

Preferably, the wire end signal terminal and the insulating base are fixed together by means of insert molding.

Preferably, the first fixed contact portion includes a third contact arm, a fixed arm and a fourth fixed arm that are sequentially disposed, the third contact arm and the fourth fixed arm are disposed opposite to each other, and the fixed arm is embedded in the top of the second embedding groove and electrically connected to the inner conductor of the cable.

The beneficial effects of the utility model reside in that: the board end signal terminal can realize multipoint contact with the oppositely plugged line end connector through the n-type contact connecting part and the elastic contact part, the stability of signal transmission is guaranteed, the board end connector and the connector assembly have excellent contact stability, the extension directions of the transition connecting part and the elastic contact part are opposite, the space utilization rate is high, and the development requirement of product miniaturization is met; meanwhile, by the structure of the metal shell, when the plate end connector and the line end connector are oppositely plugged, the shielding wall of the metal shell is electrically connected with the shielding shell of the line end connector, the grounding wall of the metal shell is electrically connected with the grounding shell of the line end connector, the omnibearing electromagnetic shielding can be realized, the stability of grounding shielding is improved, and the plate end connector and the connector assembly have excellent electromagnetic shielding performance.

Drawings

Fig. 1 is a schematic structural diagram of a plate end connector according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a plate end connector according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a plate end connector according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a board terminal signal terminal in an embodiment of the present invention;

FIG. 5 is a schematic structural view of a plastic base according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a metal shell in an embodiment of the present invention;

fig. 7 is a schematic structural view of a connector assembly according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a connector assembly according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a line end connector according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a line end connector according to an embodiment of the present invention;

fig. 11 is an exploded view of a line end connector according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a line terminal signal terminal according to an embodiment of the present invention.

Reference numerals: 100. a plate end connector; 110. a plastic base; 111. a plastic body; 112. a first support column; 113. a terminal fixing groove; 114. terminal accommodation grooves 115, a first fitting groove; 120. a board-end signal terminal; 121. welding the part; 122. an n-type contact connection; 1221. a first contact arm; 1222. a connecting arm; 1223. a second contact arm; 1224. a first contact bump; 1225. fixing the bayonet; 123. a transition connection; 124. an elastic contact portion; 1241. a second contact bump; 130. a metal shell; 131. a shielding wall; 1311. a resilient arm; 132. a grounding wall; 1321. a ground plate; 1322. fixing the tongue piece; 200. a wire end connector; 210. an insulating base; 211. an insulating body; 212. a second fitting groove; 213. a second support column; 220. a line end signal terminal; 221. a first fixed part; 222. a first fixed contact portion; 2221. a third contact arm; 2222. a fixed arm; 2223. a fourth contact arm; 2224. a limiting groove; 223. a second fixed contact portion; 224. a second fixed part; 230. a shield case; 240. a ground plate; 250. a grounding shell; 300. a cable; 310. an inner conductor; 320. an insulating layer; 330. and a shielding layer.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

The embodiment of the application provides a board end connector, and the development requirements for miniaturization and signal transmission performance of a board-to-board connector are met. In the present application, when the plate-end connector and the line-end connector are inserted into each other, the direction of the plate-end connector relative to the line-end connector is lower, bottom or bottom, and the opposite direction is upper, top or top.

As shown in fig. 1 to 6, the embodiment of the present application:

a board terminal connector 100 includes a plastic base 110, a board terminal signal terminal 120 and a metal shell 130. The plastic base 110 includes a plastic body 111, a first supporting pillar 112 and a first engaging recess 115 disposed on the plastic body 111, a terminal fixing groove 113 is disposed on the first supporting pillar 112, and a terminal receiving groove 114 is disposed below the first engaging recess 115. The metal shell 130 includes a shielding wall 131 and a grounding wall 132 disposed opposite to each other, and the grounding wall 132 is disposed on the plastic body 111.

The board-end signal terminal 120 includes a soldering portion 121, an n-type contact connection portion 122, a transition connection portion 123, and an elastic contact portion 124, which are sequentially disposed. The n-type contact connection portion 122 is disposed in the terminal fixing groove 113, the transition connection portion 123 is disposed in the terminal receiving groove 114, the elastic contact portion 124 is disposed in the first fitting groove 115, and the transition connection portion 123 is opposite to the extending direction of the elastic contact portion 124. That is, the plate end connector 120 extends from the welding portion 121, the transition connection portion 123 extends in a direction away from the first support column 112, then bends upward, and extends in a direction close to the first support column 112 to form the elastic contact portion 124, and the elastic contact portion 124 is located above the transition connection portion 123. When the board end connector 100 is plugged into the wire end connector 200 (shown later), the wire end signal terminal 220 is electrically contacted with the elastic contact portion 124, and the sidewall between the terminal receiving grooves 114 can effectively prevent the wire end connector 200 from being inserted too far, thereby ensuring the stability of the performance of the elastic contact portion 124.

In order to meet the development requirements on miniaturization and signal transmission performance of a board-to-board connector, the board-end signal terminal can realize multipoint contact with an oppositely-inserted line-end connector through the n-type contact connecting part and the elastic contact part, the stability of signal transmission is guaranteed, the board-end connector and the connector assembly have excellent contact stability, the extension directions of the transition connecting part and the elastic contact part are opposite, the space utilization rate is high, and the development requirements on miniaturization of products are met; meanwhile, through the structure of the metal shell, when the plate end connector and the line end connector are plugged oppositely, the shielding wall of the metal shell is electrically connected with the shielding shell of the line end connector, the grounding wall of the metal shell is electrically connected with the grounding shell of the line end connector, the all-round electromagnetic shielding can be achieved, the stability of grounding shielding is improved, and the plate end connector and the connector assembly have excellent electromagnetic shielding performance.

Preferably, as shown in fig. 4, the n-type contact connection portion 122 includes a first contact arm 1221, a connection arm 1222, and a second contact arm 1223, and the first contact arm 1221 and the second contact arm 1223 are provided with a first contact projection 1224 thereon. The first contact projection 1224 can help to improve the insertion and extraction force and contact stability of the plate-end connector.

Preferably, as shown in fig. 4, an upper side of the elastic contact part 124 is provided with a second contact protrusion 1241 protruding upward. By providing the second contact protrusion 1241, the sensitivity of the elastic contact portion 124 can be improved, and the contact stability of the plate-end connector can be further improved.

Preferably, as shown in fig. 4, a fixing barb 1225 abutting against the inner wall of the terminal fixing groove 113 is provided on the side wall of the n-type contact connecting portion 122, and the fixing barb 1225 is used to fix the n-type contact connecting portion 122 in the terminal fixing groove. More specifically, the fixing bayonet 1225 is symmetrically distributed on the sidewall of the bottom of the n-type contact connecting portion 112 close to the first engaging groove 115, so as to effectively prevent the board-end connector 100 and the line-end connector 200 from warping and deforming relative to the plastic base 110 when the board-end signal terminal 120 is plugged or unplugged, thereby facilitating the structural stability of the board-end connector and prolonging the service life of the board-end connector.

As shown in fig. 7 and 8, a connector assembly includes any one of the plate end connectors 100 described above, and further includes a wire end connector 200. The terminal connector 200 is electrically connected to the cable 300, and the cable 300 includes an inner conductor 310, an insulating layer 320, and a shielding layer 330 sequentially disposed. As shown in fig. 9 to 12, the terminal connector 200 includes an insulating base 210, a terminal signal terminal 220, a shielding shell 230, a grounding plate 240, and a grounding shell 250. The insulating base 210 includes an insulating body 211, a second fitting recess 212 and a second supporting pillar 213 disposed on the insulating body 211. The wire-end signal terminal 220 includes a first fixed contact portion 222 and a second fixed contact portion 223, the first fixed contact portion 222 being disposed on the second fitting groove 212, the second fixed contact portion 223 being disposed on the bottom surface of the second support column 213. The grounding plate 240 is electrically connected to the shielding layer 330, the shielding shell 230 and the grounding shell 250, that is, the grounding plate 240 electrically contacting the shielding layer 330 is fixedly connected to both the upper side and the lower side of the shielding layer 330 of the cable 300, and the specific fixing connection method can be selected by soldering. The grounding plate 240 on the upper side of the shielding layer 330 is electrically contacted with the shielding shell 230, and the grounding plate 240 on the lower side of the shielding layer 330 is electrically contacted with the grounding shell 250.

When the plate-end connector 100 and the cable-end connector 200 are inserted into each other, the first support column 112 is engaged with the second engaging recess 212, and the first fixed contact 222 is electrically connected to the n-type contact connection 122; the first engaging groove 115 engages with the second supporting post 213, and at this time, the second fixed contact portion 223 is electrically connected to the elastic contact portion 124, so that the multi-point contact with the butted terminal connectors can be realized, the stability of signal transmission is ensured, and the board terminal connector and the connector assembly have excellent contact stability. The shielding wall 131 is electrically connected to the shielding shell 230 directly, and the grounding wall 132 is electrically connected to the grounding shell 250 directly, so that the all-around electromagnetic shielding can be realized, the stability of the grounding shielding can be improved, and the board end connector and the connector assembly have excellent electromagnetic shielding performance.

Preferably, the shielding wall 131 is provided with a resilient arm 1311, and when the board end connector 100 and the line end connector 200 are inserted into each other, the resilient arm 1311 abuts against the shielding shell 230, so that the connection strength between the board end connector 100 and the line end connector 200 is enhanced, and the contact stability of the connector assembly is ensured.

Preferably, the grounding wall 132 includes a grounding plate 1321, and the grounding plate 1321 is in direct electrical contact with the grounding shell 250 when the plate connector 100 is plugged into the line connector 200. More specifically, the side wall of the ground plate 1321 on the side close to the shielding wall 131 is provided with a fixing tongue 1322 extending downward, and the fixing tongue 1322 is embedded in the plastic body 111 for fixing the ground wall 1321, so that the ground wall 132 is effectively prevented from being moved when the line end connector 200 is pulled out from the plate end connector 100, the structural stability of the plate end connector 100 is further ensured, and the service life of the plate end connector is prolonged.

Preferably, the line end signal terminal 220 and the insulation base 210 are fixed together by means of insert-molding (insert-molding). More specifically, the first fixed contact portion 222 includes a third contact arm 2221, a fixed arm 2222, and a fourth fixed arm 2223, which are sequentially disposed, the third contact arm 2221 is disposed opposite to the fourth contact arm 2223, and the fixed arm 2222 is embedded into the top of the second fitting recess 212 and is electrically connected to the inner conductor 310 of the cable 300. Illustratively, the line end signal terminal 220 includes a first fixing portion 221, a first fixing contact portion 222, a second fixing contact portion 223 and a second fixing portion 224, which are sequentially disposed, the first fixing contact portion 222 includes a third contact arm 2221 connected to the first fixing portion 221, a fixing arm 2222 and a fourth contact arm 2223 connected to the second fixing contact portion 223, a limiting groove 2224 is disposed on the third contact arm 2221 and the fourth contact arm 2223, and the position of the limiting groove 2224 is matched with the first contact protrusion 1224 in the board end signal terminal 120 in the board end connector 100, which is beneficial to improving the insertion and extraction force and the contact stability of the connector assembly. The second fixing portion 224 is embedded in the second supporting column 213, so that the connection strength between the line end signal terminal 220 and the insulating base 210 can be effectively improved, and the line end signal terminal 220 is prevented from being separated from the insulating base 210 in the using process.

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.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the invention patent scope. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a board end connector which characterized in that, includes plastic base, board end signal terminal and metal-back, wherein:

2. The plate end connector of claim 1, wherein: the n-type contact connecting part comprises a first contact arm, a connecting arm and a second contact arm, and a first contact protrusion is arranged on the first contact arm and the second contact arm.

3. The plate end connector of claim 1, wherein: and a second contact bulge protruding upwards is arranged on the upper side surface of the elastic contact part.

4. The plate end connector of claim 1 wherein: and the side wall of the n-type contact connecting part is provided with a fixing bayonet which is abutted against the inner wall of the terminal fixing groove.

5. The plate end connector of claim 4 wherein: the fixing clamping thorns are symmetrically distributed on the side wall of the bottom of the n-type contact connecting part close to one side of the first embedding groove.

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

the wire end connector comprises an insulating base, a wire end signal terminal, a shielding shell, a grounding sheet and a grounding shell, wherein the insulating base comprises an insulating body, and a second embedded groove and a second supporting column which are arranged on the insulating body; the line end signal terminal comprises a first fixed contact part and a second fixed contact part, the first fixed contact part is arranged on the second embedding groove, and the second fixed contact part is arranged on the bottom surface of the second supporting column; the grounding sheet is electrically contacted with the shielding layer of the cable, the shielding shell and the grounding shell respectively;

7. The connector assembly of claim 6, wherein: the grounding wall comprises a grounding plate, and the grounding plate is in direct electrical contact with the grounding shell when the plate end connector is plugged into the line end connector.

8. The connector assembly of claim 7, wherein: and a fixing tongue piece extending downwards is arranged on the side wall of the ground plate close to one side of the shielding wall, and the fixing tongue piece is embedded into the plastic body and is used for fixing the ground wall.

9. The connector assembly of claim 6, wherein: the wire end signal terminal and the insulating base are fixed together in an embedding forming mode.

10. The connector assembly of claim 9, wherein: the first fixed contact part comprises a third contact arm, a fixed arm and a fourth fixed arm which are arranged in sequence, the third contact arm and the fourth fixed arm are arranged oppositely, and the fixed arm is embedded into the top of the second embedding groove and is electrically connected with the inner conductor of the cable.