CN215070495U - Board-to-board socket connector - Google Patents

Abstract

The utility model discloses a board-to-board socket connector, which comprises a plastic base and a plurality of signal terminals, wherein the plastic base comprises a bottom plate, a central column and a frame structure, and the frame structure comprises a pair of long edge structures and a pair of short edge structures; the device also comprises a central column protection sheet, an end wall protection frame and an elastic piece. The elastic piece on end wall fender bracket downside is including the fixed weld part that exposes in the plastic base bottom surface that sets gradually, passes the connecting portion of plastic base and exposes the elastic component on the inboard surface of frame structure, and elastic component and connecting portion are located the frame structure inboard with the side structure, and fixed weld part is located below the bottom of this side structure. Compared with the prior art, through setting up center post protection piece, end wall fender bracket and elastic component respectively, when being connected with butting connector, when protecting the center post and the end wall of plastic base, can also effectively shorten the electric current conduction route, improve the extreme value of electric current, enlarge the board and to the application scope of board socket connector.

Description

Board-to-board socket connector

Technical Field

The utility model relates to an electric connector technical field especially relates to a board is to board socket connector.

Background

With the technological progress, the demand for electronic products is getting larger and higher. The existing plate-to-plate products gradually develop towards miniaturization, thinning and high performance. In the process of miniaturization, the requirement for passing large current to the armor is higher and higher.

The prior art (chinese patent publication No. CN211605453U) discloses a female socket structure of a board-to-board connector, which includes a plastic body, a plurality of metal terminals embedded and injection-molded with the plastic body, and protective steel sheet assemblies covering the surfaces of two ends of the plastic body. The protective steel sheet assembly comprises a bottom plate body, a first coating portion and a second coating portion, wherein the first coating portion and the second coating portion are bent upwards from two longitudinal side edges of the bottom plate body, and a third coating portion and a fourth coating portion are bent upwards from two transverse side edges of the bottom plate body. The third coating part and the fourth coating part both comprise contact elastic sheets which are bent upwards from one side of the bottom plate body and are in contact with the male contact point.

The method has the following defects: in the conventional female seat structure of the plate-to-plate connector, the current conduction path of the protective steel sheet assembly is long, so that the current limit value is small, and the application of the plate-to-plate connector is limited.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a board is to board socket connector, can effectively reduce circuit conduction path, improves electric current limit value, enlarges the board to the range of application of board socket connector.

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

a board-to-board socket connector comprises a plastic base and a plurality of signal terminals arranged on the plastic base, wherein the plastic base comprises a bottom plate, a central column arranged on the bottom plate and a frame structure arranged on the bottom plate and surrounding the central column, and the frame structure comprises a pair of long edge structures arranged oppositely and a pair of short edge structures arranged oppositely; wherein, the board-to-board socket connector further comprises:

the central column protective sheet comprises a protective part and a fixed part, the protective part covers the end surface of the central column, and the fixed part is connected with the bottom plate and is used for fixing the central column protective sheet on the plastic base;

the end wall protection frame comprises a protection frame body and protection wings, wherein the protection frame body is arranged on the short side structure, and the protection wings are arranged on two sides of the protection frame body and extend along the long side structure;

the elastic piece comprises a fixed welding part, a connecting part and an elastic part which are sequentially arranged, the fixed welding part is exposed on the bottom surface of the plastic base, and the connecting part penetrates through the plastic base so that the elastic part is exposed on the inner side surface of the frame structure;

the elastic component sets up end wall fender bracket downside, the elastic component with connecting portion are located the frame structure is with the inboard of limit structure, fixed weld part is located below the bottom of side structure.

Preferably, the width of the elastic part is smaller than the width of the connection part.

Preferably, the connection part and the elastic part are in a structure of a Chinese character shan as a whole.

Preferably, the plastic base is provided with a plurality of through hole structures, and the connecting part is arranged in the through hole structures.

Preferably, connecting portion with be equipped with first barb structure on the lateral wall of through-hole structure contact, first barb structure is used for improving the elastic component with the stability that the plastic base is connected.

Preferably, the elastic part includes a contact protrusion protruding from an inner side surface of the bezel structure.

Preferably, each end wall of the plastic base is provided with three elastic members, namely, the short-side structure is provided with one elastic member, and the end parts of the two long-side structures connected with the short-side structure are respectively provided with one elastic member.

Preferably, the protection part comprises a first protection surface and a second protection surface, and the first protection surface is connected with the fixing part and extends along the height direction of the central column; the second protective surface is arched and arranged on the upper surface of the central column and extends downwards along the height direction of the central column.

Preferably, the protection part comprises a third protection surface and fixing columns, the third protection surface covers the end side surface of the central column, and the fixing columns are embedded into the central column.

Preferably, a first groove structure is arranged on the long side structure, and the protective wing is arranged in the first groove structure; the short edge structure is provided with a second groove structure, and the protective frame body extends downwards along the second groove structure.

Preferably, a bump is arranged in the second groove structure, and a second barb structure is arranged on the side wall of the fender bracket body contacting the bump.

The beneficial effects of the utility model reside in that: through setting up center post protection piece, end wall fender bracket and elastic component respectively, the elastic component setting is at the end wall fender bracket downside, including the fixed weld part that exposes in the plastic base bottom surface, the connecting portion that pass the plastic base that sets gradually and the elastic component who exposes in the inboard surface of frame structure, elastic component and connecting portion lie in the frame structure with the inboard of side structure, fixed weld part lies in below the bottom of this side structure. When the connector is connected with a butting connector, the current conducting path can be effectively shortened while the central column and the end wall of the plastic base are protected, the limit value of current is improved, and the application range of the board to the board socket connector is expanded.

Drawings

Fig. 1 is a schematic structural diagram of a board-to-board socket connector according to an embodiment of the present invention;

fig. 2 is an exploded view of a board-to-board socket connector according to an embodiment of the present invention;

fig. 3 is a schematic partial structural view of a board-to-board socket connector according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an elastic member according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an end wall protector in an embodiment of the present invention;

fig. 6 is a schematic structural view of a central pillar protection sheet according to an embodiment of the present invention;

fig. 7 is a schematic structural view of another central pillar protective sheet according to an embodiment of the present invention;

fig. 8 is a left side view of a board-to-board socket connector according to an embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a board-to-board socket connector according to an embodiment of the present invention.

Reference numerals:

100. a plastic base; 110. a base plate; 111. a via structure; 120. a frame structure; 121. a long side structure; 1211. a first groove; 122. a short edge structure; 1221. a second groove; 1222. a bump; 130. a central column; 200. a signal terminal; 300. a central column protection sheet; 310. a protective part; 311. a first protective face; 312. a second protective surface; 313. a third protection surface; 314. fixing a column; 320. a fixed part; 400. an end wall fender bracket; 410. a fender bracket body; 411. a second barb structure; 420. protecting the wings; 421. a third barb structure; 500. an elastic member; 510. fixing the welding part; 520. a connecting portion; 521. a first barb structure; 530. an elastic portion; 531. and contacting the protrusion.

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.

This application embodiment is through providing a board to board socket connector, and the current that solves prior art medium plate to the female seat structure of board connector switches on the path length, and the current limit value is little problem. Herein, the width direction refers to the direction of the short side structure of the plastic base, and the length direction refers to the direction of the long side structure of the plastic base; the end wall refers to a structure of two end parts of the plastic base in the length direction, namely a structure of a short side and a long side connected with the short side.

As shown in fig. 1 to 9, the embodiment of the present application:

a board-to-board socket connector comprises a plastic base 100 and a plurality of signal terminals 200 arranged on the plastic base 100. The plastic base 100 includes a bottom plate 110, a center post 130 disposed on the bottom plate 110, and a frame structure 120 disposed on the bottom plate 110 and surrounding the center post 130. The frame structure 120 includes a pair of oppositely disposed long side structures 121 and a pair of oppositely disposed short side structures 122. The board-to-board socket connector further includes a center post guard plate 300, an end wall guard 400, and an elastic member 500.

The center post shielding pieces 300 are respectively disposed on both sides of the center post 130 in the length direction, and include a shielding portion 310 and a fixing portion 320. The shielding part 310 covers an end surface of the center post 130, and serves to prevent the center post 130 from being worn or damaged when connected with a docking connector (not shown). The shielding part 310 may cover the entire end surface of the central pillar 130, or may cover a part of the end surface of the central pillar 130. The fixing portion 320 is connected to the bottom plate 110, and is used for fixing the central pillar patch 300 on the plastic base 300. More specifically, center post guard 300 and plastic base 100 are fixed together by insert-molding (insert-molding).

The end wall protection frames 400 are respectively disposed on two sides of the plastic base 100 and include a protection frame body 410 and protection wings 420. The protective frame body 410 is disposed on the short side structure 122, and the protective wings 420 are disposed on both sides of the protective frame body 410 in the width direction and extend in the length direction along the long side structure 121.

The elastic member 500 includes a fixing weld portion 510, a connection portion 520, and an elastic portion 530, which are sequentially disposed. The fixing solder portion is exposed on the bottom surface of the plastic base 100 and is used for being soldered and fixed with a PCB (not shown) to conduct current for transmitting power and/or signals. The connection part 520 penetrates through the plastic base 100 such that the elastic part 530 is exposed on the inner surface of the frame structure 120, and when the connector is connected to the mating connector, the elastic part 530 elastically contacts with the metal shell of the mating connector. The elastic member 500 is disposed at the lower side of the end wall protection frame 400, the elastic portion 530 and the connecting portion 520 are located at the inner side of the same side structure of the side frame structure 120, and the fixing and welding portion 510 is located below the bottom of the side structure. Specifically, when the elastic part 530 and the connection part 520 are located inside the short-side structure 122, the fixed welding part 510 is located under the bottom of the short-side structure 122; when the elastic part 530 and the connection part 520 are located inside one end of the long-side structure 121, the fixed welding part 510 is located under the bottom of the one end of the long-side structure 121. By the arrangement, the current conduction path can be effectively shortened, and the limit value of the current is improved.

In order to solve prior art medium plate to female seat structure of board connector current conduction path length, the little problem of current limit value, this application is differentiated into the center post protection piece that sets up alone through the protection steel sheet subassembly with traditional integral type, end wall fender bracket and elastic component triplex, the elastic component sets up at end wall fender bracket downside, including the fixed weld part that exposes in the plastic base bottom surface that sets gradually, pass the connecting portion of plastic base and expose in the elastic part of the inboard surface of frame structure, elastic part and connecting portion are located the inboard of the same side structure of frame structure, fixed weld part is located below the bottom of this side structure. As shown in fig. 9, the current at the end of the board-to-board socket connector directly reaches the contact portion from the fixing welding portion of the elastic member through the connecting portion, so as to effectively shorten the current conduction path, improve the limit value of the current, and further facilitate the expansion of the application range of the board-to-board socket connector.

Preferably, as shown in fig. 2 and 3, the plastic base 100 is provided with a plurality of through hole structures 111, and the connection portion 520 is disposed in the through hole structures 111. The elastic member 500 is assembled and connected with the plastic base 100 through the through hole structure 111, the elastic space is large, the elastic member 500 is ensured to have high elasticity, and meanwhile, the error range of the assembly size of the butting connector and the board-to-board socket connector is favorably increased, and further, the production yield of products is favorably improved.

Preferably, the width of the elastic part 530 is smaller than that of the connecting part 520, so that the elastic part 500 can be assembled conveniently, and the elasticity of the elastic part 530 can be improved, thereby improving the contact stability between the board-to-board socket connector and the docking connector. More specifically, as shown in fig. 4, the connection portion 520 and the elastic portion 530 are integrally formed in a "mountain" shape, that is, the connection portion 520 is provided with a groove structure on each side of the elastic portion 530 at a connection portion with the elastic portion 530, so that the elastic portion 530 is integrally formed in a structure similar to the "mountain" shape at a middle position, and under the same size, the arm of force of the elastic portion 530 can be increased, and the elasticity of the elastic portion 530 can be further improved.

Preferably, the first barb structure 521 is disposed on the sidewall of the connecting portion 520 contacting the through-hole structure 111, and when the elastic member 500 is mounted on the plastic base 100, the first barb structure 521 is tightly engaged with the inner wall of the through-hole structure 111, so as to improve the stability of the connection between the elastic member 500 and the plastic base 100.

Preferably, the elastic part 530 includes a contact protrusion 531, and the contact protrusion 531 protrudes from an inner side surface of the bezel structure 120. The contact protrusion 531 is beneficial to improving the contact stability of the elastic member 500 and the butting connector, and is further beneficial to improving the stability of the electric connection performance of the board-to-board socket connector.

Preferably, three elastic members 500 are disposed on each end wall of the plastic base 100, that is, one elastic member 500 is disposed on the short side structure 122 at each end wall, and one elastic member 500 is disposed at the end decibel of the two long side structures 121 connected to the short side structure 122. As shown in fig. 1 and 8, the number of the elastic members 500 in the board-to-board socket connector is 6, and 3 of the end walls are respectively arranged, and are respectively located on the short-side structures 122 and the two opposite long-side structures 121. By the arrangement, three current conduction paths are arranged on each end wall, so that the current conduction quantity can be increased, and the transmission capability of the board to the board socket connector is improved.

Preferably, as shown in fig. 6, the protection part 310 includes a first protection surface 311 and a first protection surface 312, and the first protection surface 311 is connected to the fixing part 320 and extends along the height direction of the central pillar 130. The second protection surface 312 is arched and covers the upper surface of the central column, and two side surfaces of the second protection surface 312 extend downwards along the height direction of the central column 130, so that the stability of connection between the protection part 310 and the central column 130 is enhanced, the protection part 310 is prevented from warping or turning on one side in the plugging and unplugging process of the butting connector, and the plugging and unplugging service life of the board to board socket connector is prolonged.

Preferably, as shown in fig. 7, the guard 310 includes a third guard surface 313 and a fixing post 314. When the third protection surface 313 covers the end side surface of the central column and is connected with the butting connector, the end side surface of the central column can be completely prevented from being directly connected with the butting connector, the protection area is large, and the protection effect is favorably improved. The fixing posts 314 are embedded in the center posts, so that the protection portion 310 is prevented from warping or turning over during plugging and unplugging of the butting connector, and the plugging and unplugging service life of the board-to-board socket connector is prolonged.

Preferably, as shown in fig. 2, 3 and 8, the long side structure 121 is provided with a first groove structure 1211, and the protection wing 420 is disposed in the first groove structure 1211. The retention wings 420 are provided with third barb structures 421 that engage the sidewalls of the first groove 1211 to help improve the stability of the connection of the end wall protector 400 to the plastic chassis 100. The short side structure 122 is provided with a second groove structure 1221, and the fender bracket body 410 extends downwards along the second groove structure 1221. More specifically, the second groove structure 1221 is provided with a protrusion 1222 therein, and the fender bracket body 410 is provided with a second barb structure 411 engaged with a sidewall of the protrusion 1222, which is helpful to improve the connection stability between the end wall fender bracket 400 and the plastic base 100.

The insert molding is a molding method in which a predetermined insert made of a different material is placed in a mold, and then a resin is injected, and the molten material is bonded to the insert and solidified 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 invention. 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 (10)

1. A board-to-board socket connector is characterized by comprising a plastic base and a plurality of signal terminals arranged on the plastic base, wherein the plastic base comprises a bottom plate, a central column arranged on the bottom plate and a frame structure arranged on the bottom plate and surrounding the central column, and the frame structure comprises a pair of long edge structures arranged oppositely and a pair of short edge structures arranged oppositely; wherein, the board-to-board socket connector further comprises:

the central column protective sheet comprises a protective part and a fixed part, the protective part covers the end surface of the central column, and the fixed part is connected with the bottom plate and is used for fixing the central column protective sheet on the plastic base;

the end wall protection frame comprises a protection frame body and protection wings, wherein the protection frame body is arranged on the short side structure, and the protection wings are arranged on two sides of the protection frame body and extend along the long side structure;

the elastic piece comprises a fixed welding part, a connecting part and an elastic part which are sequentially arranged, the fixed welding part is exposed on the bottom surface of the plastic base, and the connecting part penetrates through the plastic base so that the elastic part is exposed on the inner side surface of the frame structure;

the elastic component sets up end wall fender bracket downside, the elastic component with connecting portion are located the frame structure is with the inboard of limit structure, fixed weld part is located below the bottom of side structure.

2. The board-to-board socket connector of claim 1, wherein: the plastic base is provided with a plurality of through hole structures, and the connecting part is arranged in the through hole structures.

3. The board-to-board socket connector of claim 2, wherein: the width of the elastic part is smaller than that of the connecting part.

4. The board-to-board socket connector of claim 3, wherein: the connecting part and the elastic part are integrally in a structure like a Chinese character 'shan'.

5. The board-to-board socket connector of claim 2, wherein: connecting portion with be equipped with first barb structure on the lateral wall that the through-hole structure contacted, first barb structure is used for improving the elastic component with the stability that the plastic base is connected.

6. The board-to-board socket connector of claim 1, wherein: the elastic part comprises a contact bulge, and the contact bulge is protruded on the inner side surface of the frame structure.

7. The board-to-board socket connector of claim 1, wherein: and three elastic pieces are arranged on each end wall of the plastic base, namely, one elastic piece is arranged on the short edge structure, and two elastic pieces are respectively arranged at the end parts of the long edge structures, which are connected with the short edge structures.

8. The board-to-board socket connector of claim 1, wherein: the protective part comprises a first protective surface and a second protective surface, and the first protective surface is connected with the fixed part and extends along the height direction of the central column; the second protective surface is arched and arranged on the upper surface of the central column and extends downwards along the height direction of the central column.

9. The board-to-board socket connector of claim 1, wherein: the protection portion comprises a third protection surface and fixing columns, the third protection surface covers the end side surface of the central column, and the fixing columns are embedded into the central column.

10. The board-to-board socket connector of claim 1, wherein: the long edge structure is provided with a first groove structure, and the protective wing is arranged in the first groove structure; the short edge structure is provided with a second groove structure, and the protective frame body extends downwards along the second groove structure.

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