CN219843174U - Socket connector and connector assembly - Google Patents

Abstract

The utility model discloses a socket connector and a connector assembly, wherein the socket connector comprises an insulating base, and a first socket terminal and a second socket terminal which are alternately arranged on the insulating base. The first socket terminal comprises a first welding part, a first supporting arm, a first bending arm, a first inner side contact part, a first U-shaped arm and a first outer side contact part which are sequentially arranged from the long side structure to the middle island structure. The second socket terminal comprises a second welding part, a second supporting arm, a second bending arm, a second inner side contact part, a second U-shaped arm and a second outer side contact part which are sequentially arranged, the second supporting arm extends upwards along the thickness direction of the middle island structure, and the second welding part and the second bending arm are positioned on the same side of the second supporting arm. Compared with the prior art, the socket connector has high space utilization rate, various functions and meets the development requirement of miniaturization of products.

Description

Socket connector and connector assembly

Technical Field

The present utility model relates to the field of connectors, and in particular, to a receptacle connector and a connector assembly.

Background

Board-to-Board (pcb) electrical connectors are a common type of connection element in electronic products for establishing electrical connection between two circuit boards, and generally include a plug connector and a socket connector, which are soldered to the two circuit boards, respectively, and are connected to each other by plugging the two circuit boards. With the miniaturization and slimness of electronic products, electrical connection between different circuit boards is often required in the electronic device, and the internal space is relatively limited due to the small size of the electronic device.

Therefore, there is a need for a socket connector with high space utilization, which meets the development requirements of miniaturization of products.

Disclosure of Invention

The socket connector provided by the embodiment of the utility model has the advantages of high space utilization rate and diversity of functions, and meets the development requirement of miniaturization of products.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a receptacle connector comprising an insulative base, a first receptacle terminal and a second receptacle terminal, wherein:

the insulation base comprises a pair of oppositely arranged long side structures, a pair of oppositely arranged short side structures and a middle island structure, wherein the middle island structure is positioned in a frame-shaped structure formed by surrounding the long side structures and the short side structures, first terminal grooves and second terminal grooves which are alternately arranged are arranged between the middle island structure and the long side structures, the first socket terminals are fixed in the first terminal grooves, and the second socket terminals are fixed in the second terminal grooves;

the first socket terminal comprises a first welding part, a first supporting arm, a first bending arm, a first inner side contact part, a first U-shaped arm and a first outer side contact part which are sequentially arranged, wherein the first welding part extends from the long-side structure to the middle island structure, the first supporting arm is connected with the first welding part and extends upwards along the thickness direction of the long-side structure, and the first inner side contact part and the first outer side contact part are oppositely arranged at two sides of the first U-shaped arm;

the second socket terminal comprises a second welding part, a second supporting arm, a second bending arm, a second inner side contact part, a second U-shaped arm and a second outer side contact part which are sequentially arranged, the second supporting arm extends upwards along the thickness direction of the middle island structure, the second welding part and the second bending arm are located on the same side of the second supporting arm, and the second inner side contact part and the second outer side contact part are oppositely arranged on two sides of the second U-shaped arm.

Preferably, the side walls of the first support arm and the second support arm are provided with limiting protrusions.

Preferably, a fixing protrusion is arranged on one side wall of the second supporting arm, and the protruding height of the fixing protrusion is larger than that of the limiting protrusion.

Preferably, a distance between the first inner side contact portion and the first outer side contact portion and a distance between the second inner side contact portion and the second outer side contact portion are equal.

Preferably, the minimum distance between the first support arm and the first U-shaped arm is less than the minimum distance between the second support arm and the second U-shaped arm.

Preferably, a metal reinforcing fitting is also included for reinforcing the structural strength of the insulating base.

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

the plug connector comprises a plastic base, a first plug terminal and a second plug terminal, wherein the first plug terminal and the second plug terminal are arranged on the plastic base, the first plug terminal comprises a third U-shaped arm, first plug contact parts are arranged on the outer walls of two opposite sides of the third U-shaped arm, the second plug terminal comprises a fourth U-shaped arm, and second plug contact parts are arranged on the outer walls of two opposite sides of the fourth U-shaped arm;

when the plug connector and the socket connector are in a butt-plug state, the first socket terminal is electrically connected with the first plug terminal, and the second socket terminal is electrically connected with the second plug terminal.

Preferably, the distance between the two side walls of the third U-shaped arm is equal to the distance between the two opposite side walls of the fourth U-shaped arm.

Preferably, the first plug terminal comprises a first welding fixed part, a first connecting arm and the third U-shaped arm which are sequentially arranged, and the second plug terminal comprises a second welding fixed part, a second connecting arm and the fourth U-shaped arm which are sequentially arranged; the first welding fixing part and the third U-shaped arm are positioned on the same side of the first connecting arm, and the second welding fixing part and the fourth U-shaped arm are positioned on two sides of the second connecting arm; or the first welding fixing part and the third U-shaped arm are positioned at two sides of the first connecting arm, and the second welding fixing part and the fourth U-shaped arm are positioned at one side of the second connecting arm.

Preferably, a first anti-falling protrusion is disposed at the lower side of a first plug contact portion of the third U-shaped arm, which is in electrical contact with the first inner contact portion, and a second anti-falling protrusion is disposed at the lower side of a second plug contact portion of the fourth U-shaped arm, which is in electrical contact with the second inner contact portion.

The utility model has the beneficial effects that: the first socket terminal and the second socket terminal are alternately arranged and fixed, so that the distance between adjacent terminals is effectively reduced, the space utilization rate of the socket connector is improved, and the development requirement of miniaturization of products is met; the first socket terminal can be a ground terminal, a power terminal or a signal terminal, and likewise, the second socket terminal can also be a ground terminal, a power terminal or a signal terminal, which are limited according to specific application environments, so that the functions are diversified; the second welding part and the second bending arm are arranged on the same side of the second supporting arm, so that the welding area of the second welding part can be ensured without widening the width of the middle island structure, the weldability of the second socket terminal is ensured, and the space utilization rate of the socket connector is further improved; the first inner side contact part and the second inner side contact part have the same or similar structures, and the first outer side contact part and the second outer side contact part have the same or similar structures, so that the connector assembly is simple in structure, convenient to produce and process, and beneficial to popularization and application in industry.

Drawings

Fig. 1 is a schematic structural view of a receptacle connector according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a plug connector according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a receptacle connector according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a first socket terminal and a second socket terminal according to an embodiment of the utility model;

fig. 5 is a schematic plan view of a first socket terminal and a second socket terminal according to an embodiment of the utility model;

FIG. 6 is an exploded view of a plug connector according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a first plug terminal and a second plug terminal according to an embodiment of the present utility model;

fig. 8 is a schematic plan view of a first plug terminal and a second plug terminal according to an embodiment of the utility model;

FIG. 9 is a schematic view of a connector assembly according to an embodiment of the present utility model;

FIG. 10 is a first cross-sectional schematic view of the connector assembly shown in FIG. 9;

fig. 11 is a second cross-sectional schematic view of the connector assembly shown in fig. 9.

Reference numerals: 100. a receptacle connector; 110. an insulating base; 111. a long side structure; 112. a short side structure; 113. a middle island structure; 114. a first terminal slot; 115. a second terminal groove; 120. a first terminal; 121. a first welded portion; 122. a first support arm; 123. a first bending arm; 124. a first inner side contact portion; 125. a first U-shaped arm; 126. a first outer contact portion; 130. a second terminal; 131. a second welded portion; 132. a second support arm; 1321. a fixing protrusion; 133. a second bending arm; 134. a second inner side contact portion; 135. a second U-shaped arm; 136. a second outer contact portion; 140. a metal reinforcing fitting; 141. an end wall protection sheet; 142. a middle island protective sheet; 200. a plug connector; 210. a plastic base; 220. a first plug terminal; 221. a first welding fixing part; 222. a first connecting arm; 223. a third U-shaped arm; 224. a first plug contact; 225. a first anti-drop protrusion; 230. a second plug terminal; 231. a second welding fixing portion; 232. a second connecting arm; 233. a fourth U-shaped arm; 234. a second plug contact; 235. a second anti-drop protrusion; 240. a metal protective sheet; d1, the minimum distance between the first supporting arm and the first U-shaped arm; d2, the minimum distance between the second support arm and the second U-shaped arm; d3, the distance between two side walls of the third U-shaped arm; d4, the distance between two side walls of the fourth U-shaped arm.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

The socket connector solves the technical problem that the existing board-to-board connector is difficult to meet development requirements due to limited design space in the prior art. In the present utility model, when the receptacle connector is inserted into the plug connector, the receptacle connector is positioned in a direction of lower, lower or bottom, and the receptacle connector is positioned in a direction of upper, upper or top opposite to the direction of the receptacle connector.

As shown in fig. 1 and 3, an embodiment of the present utility model is:

a receptacle connector 100 includes an insulative base 110, a first receptacle terminal 120, and a third receptacle terminal 130. The insulating base 110 includes a pair of long side structures 111 disposed opposite to each other, a pair of short side structures 112 disposed opposite to each other, and a middle island structure 113, wherein the middle island structure 113 is located in a frame structure formed by surrounding the long side structures 111 and the short side structures 112. The first terminal grooves 114 and the second terminal grooves 115 are alternately arranged between the middle island structure 113 and the long side structure 111, the first socket terminals 120 are fixed in the first terminal grooves 114, and the second socket terminals 130 are fixed in the second terminal grooves 115. The first receptacle terminal 120 may be any one of a signal terminal, a power terminal, or a ground terminal, and likewise the second receptacle terminal 130 may be any one of a signal terminal, a power terminal, or a ground terminal, the specific type depending on the transmission requirements when the receptacle connector 100 is in use, and the functions are diverse.

The first socket terminal 120 includes a first welded portion 121, a first support arm 122, a first bending arm 123, a first inner contact portion 124, a first U-shaped arm 125, and a first outer contact portion 126 that are sequentially disposed, the first welded portion 121 extends from the long-side structure 111 toward the island structure 113, the first support arm 122 is in contact with the first welded portion 121 and extends upward along the thickness direction of the long-side structure 111, and the first inner contact portion 124 and the first outer contact portion 126 are disposed on both sides of the first U-shaped arm 125. The second socket terminal 130 includes a second welding portion 131, a second supporting arm 132, a second bending arm 133, a second inner side contact portion 134, a second U-shaped arm 135 and a second outer side contact portion 136 which are sequentially disposed, the second supporting arm 132 extends upward along the thickness direction of the middle island 113, the second welding portion 131 and the second bending arm 133 are located at the same side of the second supporting arm 132, and the second inner side contact portion 134 and the second outer side contact portion 136 are disposed at both sides of the second U-shaped arm 135 opposite to each other. That is, the first socket terminals 120 and the second socket terminals are arranged in a staggered manner, the first welding portions 121 and the second welding portions 131 are designed in a staggered manner in four rows, so that the distance between the adjacent terminals is effectively reduced, the space is saved, and the extending directions of the two adjacent second welding portions 131 are opposite in the width direction of the socket connector 100, so that the weldability of the second socket terminals 130 is effectively ensured.

In order to solve the technical problem that the existing board-to-board connector is difficult to meet development requirements due to limited design space in the prior art, the first socket terminal and the second socket terminal are alternately installed and fixed, so that the distance between adjacent terminals is effectively reduced, the space utilization rate of the socket connector is improved, and the development requirements of miniaturization of products are met; the first socket terminal can be a ground terminal, a power terminal or a signal terminal, and likewise, the second socket terminal can also be a ground terminal, a power terminal or a signal terminal, which are limited according to specific application environments, so that the functions are diversified; the second welding part and the second bending arm are arranged on the same side of the second supporting arm, so that the welding area of the second welding part can be ensured without widening the width of the middle island structure, the weldability of the second socket terminal is ensured, and the space utilization rate of the socket connector is further improved; the first inner side contact part and the second inner side contact part have the same or similar structures, and the first outer side contact part and the second outer side contact part have the same or similar structures, so that the connector assembly is simple in structure, convenient to produce and process, and beneficial to popularization and application in industry.

Preferably, as shown in fig. 4 and 5, limiting protrusions are provided on the sidewalls of the first and second support arms 122 and 132 for reinforcing the connection strength of the first and second support arms 122 and 132 and the insulating base 110. More specifically, the fixing protrusion 1321 is provided on a side wall of one side of the second supporting arm 132, and the protrusion height of the fixing protrusion 1321 is greater than the protrusion height of the limiting protrusion, so that the structural strength of the second socket terminal 130 can be further improved, and the buckling deformation of the second socket terminal is prevented during the use process.

Preferably, the distance between the first inner side contact portion 124 and the first outer side contact portion 126 is equal to the distance between the second inner side contact portion 134 and the second outer side contact portion 136, and accordingly, the distance between the contact structures of each terminal in the plug connector 200 (hereinafter shown) to be plugged with the receptacle connector 100 is also equal, and the plastic base 210 is simple in structure, easy to mold, and strong in compatibility and versatility. More specifically, as shown in fig. 5, the minimum distance d1 between the first support arm 122 and the first U-shaped arm 125 is smaller than the minimum distance d2 between the second support arm 132 and the second U-shaped arm 135, and the distances between the inner and outer contact portions between adjacent terminals are equal by improving the terminal structure, so that the insulating base 110 only needs to be adaptively adjusted, thereby improving the space utilization of the product and simultaneously having a simple structure and being convenient for forming.

Preferably, the receptacle connector 100 further includes a metal reinforcing fitting 140 for reinforcing the structural strength of the insulating base 110. More specifically, the metal reinforcing fitting 140 includes an end wall protection sheet 141 and a middle island protection sheet 142, the end wall protection sheet 141 is covered on the upper side of the short side structure 112 and extends along the long side structure 111, the middle island protection sheet 142 is covered on both ends of the middle island structure 113, preventing the connector assembly from wearing the socket connector 100 during the plugging process, improving the service life of the socket connector 100, and improving the electromagnetic shielding performance of the connector assembly in cooperation with the metal protection sheet 240 in the plug connector 200.

As shown in fig. 9 to 11, the present utility model further provides a connector assembly including any of the above-described receptacle connectors 100 and further including a plug connector 200. As shown in fig. 2 and 6, the plug connector 200 includes a plastic base 210, a first plug terminal 220 and a second plug terminal 230 disposed on the plastic base 210, the first plug terminal 220 includes a third U-shaped arm 223, two opposite outer walls of the third U-shaped arm 223 are provided with first plug contact portions 224, the second plug terminal 230 includes a fourth U-shaped arm 233, and two opposite outer walls of the fourth U-shaped arm 233 are provided with second plug contact portions 234. When the plug connector 200 and the receptacle connector 100 are in the mated state, the first receptacle terminal 120 is electrically connected to the first plug terminal 220, and the second receptacle terminal 130 is electrically connected to the second plug terminal 230, so that the connector assembly has excellent contact stability due to the double-point contact.

Preferably, the distance between the two sidewalls of the third U-shaped arm 223 is equal to the distance between the two opposite sidewalls of the fourth U-shaped arm 233, so that the plastic base 210 has a simple structure, is convenient for molding, and has strong matching and versatility.

Preferably, as shown in fig. 7 and 8, the first plug terminal 220 includes a first welding fixture 221, a first connection arm 222, and a third U-shaped arm 223, which are sequentially disposed, and the second plug terminal 230 includes a second welding fixture 231, a second connection arm 232, and a fourth U-shaped arm 233, which are sequentially disposed. When the first welding fixture 221 and the third U-shaped arm 223 are located at the same side of the first connecting arm 222, the second welding fixture 231 and the fourth U-shaped arm 233 are located at two sides of the second connecting arm 232 respectively; when the first welding fixture 221 and the third U-shaped arm 223 are respectively located at two sides of the first connecting arm 222, the second welding fixture 231 and the fourth U-shaped arm 233 are located at the same side of the second connecting arm 232. The staggered arrangement of the first welding fixing part 221 and the second welding fixing part 231 ensures weldability, improves the space utilization rate of the product, and meets the development requirement of miniaturization of the product.

Specifically, the plastic base 210 is fixed with the first and second plug terminals 220 and 230 by insert-molding, and the molding process is simple, thereby facilitating production and processing. Furthermore, a space groove is additionally formed around the first welding fixing portion 221 or the second welding fixing portion 231 on the plastic base 210, so that the airflow is increased to make the hot air uniformly beneficial to the welding tin-climbing effect and the appearance inspection.

Preferably, a first anti-falling protrusion 225 is disposed at a lower side of the first plug contact portion 224 electrically contacting the first inner contact portion 124 in the third U-shaped arm 223, a second anti-falling protrusion 235 is disposed at a lower side of the second plug contact portion 234 electrically contacting the second inner contact portion 134 in the fourth U-shaped arm 233, and an engaging force of the connector assembly can be increased by providing the first anti-falling protrusion 225 and the second anti-falling protrusion 235, so as to improve a contact stability of the connector assembly.

The insert molding is a molding method of filling a prepared special material insert into a mold, injecting resin, and bonding and solidifying the molten material and the insert to prepare an integrated product.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A receptacle connector comprising an insulative base, a first receptacle terminal and a second receptacle terminal, wherein:

the insulation base comprises a pair of oppositely arranged long side structures, a pair of oppositely arranged short side structures and a middle island structure, wherein the middle island structure is positioned in a frame-shaped structure formed by surrounding the long side structures and the short side structures, first terminal grooves and second terminal grooves which are alternately arranged are arranged between the middle island structure and the long side structures, the first socket terminals are fixed in the first terminal grooves, and the second socket terminals are fixed in the second terminal grooves;

the first socket terminal comprises a first welding part, a first supporting arm, a first bending arm, a first inner side contact part, a first U-shaped arm and a first outer side contact part which are sequentially arranged, wherein the first welding part extends from the long-side structure to the middle island structure, the first supporting arm is connected with the first welding part and extends upwards along the thickness direction of the long-side structure, and the first inner side contact part and the first outer side contact part are oppositely arranged at two sides of the first U-shaped arm;

the second socket terminal comprises a second welding part, a second supporting arm, a second bending arm, a second inner side contact part, a second U-shaped arm and a second outer side contact part which are sequentially arranged, the second supporting arm extends upwards along the thickness direction of the middle island structure, the second welding part and the second bending arm are located on the same side of the second supporting arm, and the second inner side contact part and the second outer side contact part are oppositely arranged on two sides of the second U-shaped arm.

2. The receptacle connector of claim 1, wherein: and limiting protrusions are arranged on the side walls of the first supporting arm and the second supporting arm.

3. The receptacle connector of claim 2, wherein: and a fixing protrusion is arranged on one side wall of the second supporting arm, and the protruding height of the fixing protrusion is larger than that of the limiting protrusion.

4. The receptacle connector of claim 1, wherein: the distance between the first inner side contact portion and the first outer side contact portion is equal to the distance between the second inner side contact portion and the second outer side contact portion.

5. The receptacle connector of claim 4, wherein: the minimum distance between the first support arm and the first U-shaped arm is less than the minimum distance between the second support arm and the second U-shaped arm.

6. The receptacle connector of claim 1, wherein: the metal reinforcing fitting is used for reinforcing the structural strength of the insulating base.

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

the plug connector comprises a plastic base, a first plug terminal and a second plug terminal, wherein the first plug terminal and the second plug terminal are arranged on the plastic base, the first plug terminal comprises a third U-shaped arm, first plug contact parts are arranged on the outer walls of two opposite sides of the third U-shaped arm, the second plug terminal comprises a fourth U-shaped arm, and second plug contact parts are arranged on the outer walls of two opposite sides of the fourth U-shaped arm;

when the plug connector and the socket connector are in a butt-plug state, the first socket terminal is electrically connected with the first plug terminal, and the second socket terminal is electrically connected with the second plug terminal.

8. The connector assembly of claim 7, wherein: the distance between the two side walls of the third U-shaped arm is equal to the distance between the two opposite side walls of the fourth U-shaped arm.

9. The connector assembly of claim 7, wherein: the first plug terminal comprises a first welding fixed part, a first connecting arm and the third U-shaped arm which are sequentially arranged, and the second plug terminal comprises a second welding fixed part, a second connecting arm and the fourth U-shaped arm which are sequentially arranged; the first welding fixing part and the third U-shaped arm are positioned on the same side of the first connecting arm, and the second welding fixing part and the fourth U-shaped arm are positioned on two sides of the second connecting arm; or the first welding fixing part and the third U-shaped arm are positioned at two sides of the first connecting arm, and the second welding fixing part and the fourth U-shaped arm are positioned at one side of the second connecting arm.

10. The connector assembly of claim 7, wherein: the lower side of the first plug contact part, which is in electrical contact with the first inner contact part, of the third U-shaped arm is provided with a first anti-drop protrusion, and the lower side of the second plug contact part, which is in electrical contact with the second inner contact part, of the fourth U-shaped arm is provided with a second anti-drop protrusion.