Socket electrical connector

Abstract

A socket electric connector includes an insulating housing, a first terminal seat and a second terminal seat. The insulating housing is provided with a first fitting part. The first terminal seat is arranged inside the insulating housing and is provided with a plurality of first elastic terminals and a second fitting part. The first terminal seat is fixedly fitted to the first fitting part by the second fitting part. The second terminal seat is arranged inside the insulating housing and is provided with a plurality of second elastic terminals. Thus, the first terminal seat and the second terminal seat will not be displaced or separated relative to the insulating housing due to the elastic deformation of the first elastic terminals and the second elastic terminals, so as to avoid affecting the electrical characteristics of the connector.

Description

Technical Field

[0001] This invention relates to an electrical connector, and more particularly to a socket electrical connector. Background Technology

[0002] With the advancement of technology, the transmission between various electronic products is becoming more and more frequent. The connection between these electronic products is mainly achieved through electrical connectors. Due to the convenience of plug-and-play and high transmission speed, electrical connectors are commonly found in various electronic devices such as desktop computers, laptops, mobile communication devices, and digital cameras.

[0003] A known type of socket connector includes a housing, an upper base, and a lower base, which are stacked within the housing. The upper base has a row of upper elastic terminals, and the lower base has a row of lower elastic terminals. When a plug is inserted into the housing, it contacts the upper and lower rows of elastic terminals to achieve an electrical connection for transmitting electronic signals. However, since both the upper and lower rows of elastic terminals are elastic, after the plug is inserted, they are subjected to force and undergo elastic deformation. This causes the upper and lower bases to shift or separate relative to the housing, affecting the connector's electrical characteristics (such as contact resistance, insulation resistance, withstand voltage, or electromagnetic interference) and preventing the desired electrical connection from being achieved. Summary of the Invention

[0004] In view of this, in one embodiment, a socket electrical connector is provided, including an insulating housing, a first terminal block, and a second terminal block. The insulating housing includes a plug interface and opposing top and bottom walls, with a first fitting member provided on the top wall. The first terminal block is disposed inside the insulating housing and has a plurality of first elastic terminals and a second fitting member. Each first elastic terminal includes a first electrical contact end, a first solder end, and a first main body section connected between the first electrical contact end and the first solder end. The first main body section is fixed to the first terminal block, and the first terminal block is correspondingly fitted and fixed to the first fitting member on the top wall by the second fitting member. The second terminal block is disposed inside the insulating housing and has a plurality of second elastic terminals. Each second elastic terminal includes a second electrical contact end, a second solder end, and a second main body section connected between the second electrical contact end and the second solder end. The second main body section is fixed to the second terminal block, and the plurality of second electrical contacts and the plurality of first electrical contacts are adjacent to the plug interface and maintain a distance.

[0005] In summary, according to the embodiment of the present invention, the first terminal block is fixed to the top wall of the insulating housing by the first fitting member corresponding to the second fitting member. This allows the plug connector to be inserted into the interface and abut against the first electrical contact end and the second electrical contact end. The first terminal block and the second terminal block will not shift or separate relative to the insulating housing due to the elastic deformation of the first elastic terminal and the second elastic terminal. This avoids affecting the electrical characteristics of the connector (such as contact impedance, insulation impedance, withstand voltage or electromagnetic interference, etc.) and achieves the expected electrical connection effect.

[0006] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0007] Figure 1 This is a perspective view of the first embodiment of the socket electrical connector of the present invention.

[0008] Figure 2 This is an exploded perspective view of the first embodiment of the socket connector of the present invention.

[0009] Figure 3 This is another exploded perspective view of the first embodiment of the socket electrical connector of the present invention.

[0010] Figure 4 This is a cross-sectional view of the first embodiment of the socket electrical connector of the present invention.

[0011] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0012] Figure 6 This is another cross-sectional view of the first embodiment of the socket electrical connector of the present invention.

[0013] Figure 7 This is a schematic diagram of the insertion of the first embodiment of the socket electrical connector of the present invention.

[0014] Figure 8 This is an exploded perspective view of the second embodiment of the socket electrical connector of the present invention.

[0015] Figure 9 This is a cross-sectional view of the third embodiment of the socket electrical connector of the present invention.

[0016] In the attached figures, the following labels are used:

[0017] 1. Socket electrical connector

[0018] 2. Plug electrical connector

[0019] 10 Insulating Housing

[0020] 11 Socket

[0021] 12. Top Wall

[0022] 121 Inner Surface

[0023] 13 bottom wall

[0024] 131 First Connecting Component

[0025] 132 Convex Rib

[0026] 14 Sidewalls

[0027] 15 First mating component

[0028] Slots 151, 151A, and 151B

[0029] 152 Bottom opening

[0030] 153 Top

[0031] 16 Assembly Ports

[0032] 17 chambers

[0033] 18 Fixing part

[0034] 20 First terminal block

[0035] 21 First elastic terminal

[0036] 211 First electrical contact terminal

[0037] 212 First Main Section

[0038] 213 First Welding End

[0039] 22 Front

[0040] 23 Rear side

[0041] 25 Second fitting

[0042] 251, 251A, 251B Insert Blocks

[0043] 252B Hook section

[0044] 30 Second terminal block

[0045] 31 Second elastic terminal

[0046] 311 Second electrical contact terminal

[0047] 312 Second Main Section

[0048] 313 Second Welding End

[0049] 40 Fixture

[0050] 41 Assembly Section

[0051] 411 Connector

[0052] 412 Groove

[0053] 42 Grounding plate

[0054] 50. Outer shell

[0055] 51 Top Plate

[0056] 52 Side panels

[0057] 521 pin connector Detailed Implementation

[0058] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0059] Figures 1 to 7 This is a first embodiment of the socket connector 1 of the present invention. For example... Figures 1 to 7 As shown, the socket connector 1 of this embodiment includes an insulating housing 10, a first terminal block 20, a second terminal block 30, and a fixing base 40, with the first terminal block 20, the second terminal block 30, and the fixing base 40 disposed inside the insulating housing 10. In some embodiments, the socket connector 1 may be disposed on a circuit board of an electronic product (e.g., a computer, digital camera, or mobile communication device, etc.) (not shown in the figure) for the plug connector 2 to mate and transmit electronic signals to each other.

[0060] In some embodiments, the insulating housing 10 may be made of an insulating material, such as a hollow housing made of, but not limited to, plastic or acrylic material. Figures 1 to 7 As shown, in this embodiment, the insulating housing 10 includes a top wall 12, a bottom wall 13, and two side walls 14. The two side walls 14 are respectively connected to the top wall 12 and the bottom wall 13 to form a cavity 17. The insulating housing 10 has a plug-in interface 11 and an assembly port 16 at both ends. The cavity 17 is connected between the plug-in interface 11 and the assembly port 16. The plug-in interface 11 is used for inserting a plug connector 2, and the assembly port 16 is used for loading parts into the cavity 17 of the insulating housing 10 from the outside.

[0061] In some embodiments, a fixing part 18 is provided at the bottom of the bottom wall 13 of the insulating housing 10 for fixing to the circuit board of the electronic product. For example... Figures 1 to 7 As shown, in this embodiment, the fixing part 18 is at least one protruding post protruding below the bottom wall 13, which is correspondingly inserted and fixed in the recess of the circuit board (not shown in this figure), so that the insulating shell 10 can be stably assembled on the circuit board.

[0062] In some embodiments, an outer shell 50 may be provided outside the insulating housing 10. The outer shell 50 is used to protect the insulating housing 10 from damage and to allow the insulating housing 10 to be more securely mounted on the circuit board. Figures 1 to 7 As shown, in this embodiment, the outer shell 50 is formed by bending a thin metal sheet. The outer shell 50 includes a top plate 51 and two side plates 52 extending from both sides of the top plate 51. The top plate 51 can abut against the top wall 12 of the insulating shell 10, and the two side plates 52 are respectively assembled and fixed to the two side walls 14 of the insulating shell 10. For example, the two side plates 52 can be joined and fixed to the two side walls 14 by means of hot pressing, fitting, adhesive or snap-fit. In addition, each side plate 52 can have a connecting foot 521 extending downward from the bottom. The connecting foot 521 is used to insert and fix to the circuit board, and allows the top plate 51 of the outer shell 50 to press against the top wall 12 of the insulating shell 10, thereby making the insulating shell 10 more securely assembled on the circuit board.

[0063] like Figures 1 to 7 As shown, a first terminal block 20 is disposed inside an insulating housing 10, and the first terminal block 20 is provided with a plurality of first elastic terminals 21. In this embodiment, the first terminal block 20 may be made of an insulating material and disposed above the cavity 17 inside the insulating housing 10 and adjacent to the top wall 12. A plurality of first elastic terminals 21 are arranged in the first terminal block 20. In this embodiment, each first elastic terminal 21 is a strip made of a conductive material (e.g., metal) and has the characteristic of elastic deformation. Each first elastic terminal 21 includes a first electrical contact end 211, a first welding end 213, and a first main body section 212 connecting the first electrical contact end 211 and the first welding end 213. In some embodiments, a plurality of first resilient terminals 21 may be formed on the first terminal base 20 by insert molding, and the first body section 212 of each first resilient terminal 21 may be fixed to the first terminal base 20. The first electrical contact end 211 extends to the insertion interface 11 adjacent to the insulating housing 10, and the first solder end 213 extends out to the assembly port 16 for soldering and fixing to the circuit board of the electronic device (not shown in the figure). In other embodiments, the plurality of first resilient terminals 21 may also be formed on the first terminal base 20 by insertion or injection molding, and this embodiment is not limited thereto.

[0064] like Figures 1 to 7As shown, the second terminal block 30 is also disposed inside the insulating housing 10 and stacked on top of the first terminal block 20, and the second terminal block 30 is provided with a plurality of second elastic terminals 31. In this embodiment, the second terminal block 30 may be made of insulating material and disposed below the cavity 17 inside the insulating housing 10 and adjacent to the bottom wall 13. The plurality of second elastic terminals 31 are arranged in the second terminal block 30 and are arranged in a single row parallel to the plurality of first elastic terminals 21. In this embodiment, each second elastic terminal 31 may be a strip made of conductive material (e.g., metal) and have the characteristic of elastic deformation, and each second elastic terminal 31 includes a second electrical contact end 311, a second welding end 313, and a second body section 312 connecting the second electrical contact end 311 and the second welding end 313. In some embodiments, a plurality of second resilient terminals 31 may be formed on the second terminal base 30 by insert molding, and the second body section 312 of each second resilient terminal 31 is fixed to the second terminal base 30. The second electrical contact end 311 extends to the insertion interface 11 adjacent to the insulating housing 10, and the plurality of second electrical contact ends 311 correspond to a plurality of first electrical contact ends 211 and maintain a distance. The second solder end 313 extends out to the assembly port 16 for soldering and fixing to the circuit board of the electronic device (not shown in the figure). In other embodiments, the plurality of second resilient terminals 31 may also be formed on the second terminal base 30 by insertion or injection molding, and this embodiment is not limited thereto.

[0065] In some embodiments, the fixing base 40 may be made of insulating material and disposed inside the insulating housing 10, and a grounding plate 42 may be provided on the outside of the fixing base 40. Figures 1 to 7 As shown, in this embodiment, the grounding plate 42 is formed by bending a thin metal plate and is fixed to the outer surface of the fixing base 40. After the fixing base 40 and the grounding plate 42 are combined, they can be sandwiched between the first terminal base 20 and the second terminal base 30. The first terminal base 20, the second terminal base 30 and the fixing base 40 can be connected and fixed to each other, for example by means of hot pressing, fitting, adhesive or snap-fit.

[0066] like Figures 1 to 7 As shown, the top wall 12 of the insulating housing 10 is further provided with a first fitting member 15, and the first terminal block 20 is further provided with a second fitting member 25. The first terminal block 20 is fixed to the first fitting member 15 on the top wall 12 by correspondingly fitting the second fitting member 25, so that the insulating housing 10 and the first terminal block 20 are firmly connected to each other, preventing the first terminal block 20 from shifting or separating from the insulating housing 10 when subjected to force. The first fitting member 15 and the second fitting member 25 can have various different embodiments, which will be described below with reference to the accompanying drawings.

[0067] like Figures 3 to 6 As shown, in this embodiment, the first fitting 15 includes a plurality of slots 151 (here, four slots 151, but may also be one or more) arranged recessed on the inner surface 121 of the top wall 12. Each slot 151 is close to the assembly opening 16 of the insulating housing 10, and one end of the slot 151 extends to the assembly opening 16. In some embodiments, the slots 151 can be formed by machining, such as turning, grinding, or injection molding. The second fitting 25 includes a plurality of insert blocks 251 corresponding to the shape of the slots 151 (here, four insert blocks 251, but may also be one or more). Each insert block 251 is arranged and protruding on the surface of the first terminal block 20 near the top wall 12. In some embodiments, the insert blocks 251 can also be formed by machining, such as turning, grinding, or injection molding. Therefore, during assembly, the operator can insert the first terminal block 20 into the interior of the insulating housing 10 through the assembly port 16, and insert multiple insert blocks 251 into multiple slots 151 respectively, so that the insulating housing 10 and the first terminal block 20 are connected and fixed together.

[0068] like Figure 4 and Figure 5 As shown, in this embodiment, the cross-section of the slot 151 may include a bottom opening 152 and a top 153. The bottom opening 152 is closer to the bottom wall 13 than the top 153, and the width of the bottom opening 152 is smaller than the width of the top 153. That is, the cross-section of the slot 151 is narrower at the bottom and wider at the top. The cross-section of the insert block 251 corresponds to the cross-section of the slot 151 to fit together. For example, in this example, the cross-sections of the insert block 251 and the slot 151 are dovetail-shaped and fit together, so that after the insert block 251 is inserted into the slot 151, it can prevent the first terminal block 20 from moving towards the bottom wall 13 of the insulating housing 10 and separating from the insulating housing 10 when subjected to external force. However, this embodiment is not limited. In other embodiments, the cross-sections of the insert block 251 and the slot 151 may also be T-shaped, L-shaped, Y-shaped or other irregular shapes that fit together, for example... Figure 8 The figure shown is an exploded perspective view of the second embodiment of the socket connector of the present invention. In this embodiment, the cross-sections of the insert block 251A and the slot 151A are T-shaped and have the same shape of being narrow at the bottom and wide at the top. This also allows the insert block 251A to be inserted into the slot 151A, preventing the first terminal block 20 from moving towards the bottom wall 13 and separating from the insulating shell 10 when it is subjected to external force.

[0069] Specifically, please refer to Figure 6 and Figure 7As shown, when the plug connector 2 is inserted into the cavity 17 of the socket connector 1 through the plug interface 11 and abuts against the plurality of first electrical contact ends 211 of the plurality of first elastic terminals 21 and the plurality of second electrical contact ends 311 of the plurality of second elastic terminals 31, each first electrical contact end 211 will be subjected to force and move towards the top wall 12, thereby causing each first main body section 212 to undergo elastic deformation, for example, each first main body section 212 will bend towards the bottom wall 13. Similarly, the plurality of second electrical contact ends 311 will also be subjected to force and move towards the bottom wall 13, thereby causing each second main body section 312 to undergo elastic deformation, for example, each second main body section 312 will bend towards the top wall 12. At this time, since the first terminal block 20 is fixedly fitted into the multiple slots 151 of the top wall 12 by multiple insert blocks 251, the first terminal block 20 and the insulating shell 10 are firmly connected to each other. Therefore, the first terminal block 20 will not move towards the bottom wall 13 and separate from the insulating shell 10 due to the elastic deformation of each first main body section 212, so as to keep the first terminal block 20 in the predetermined position. In addition, since the position of the first terminal block 20 can be maintained, the first terminal block 20 can press down on the second terminal block 30, thereby preventing the second terminal block 30 from moving towards the top wall 12 and separating from the insulating shell 10 due to the elastic deformation of each second main body section 312. In this way, it can effectively avoid affecting the electrical characteristics of the connector (such as contact resistance, insulation resistance, withstand voltage or electromagnetic interference, etc.) and meet the expected electrical connection effect to improve the quality of the product.

[0070] In some embodiments, the insert block 251 and the slot 151 can also be fitted and fixed together by a tight fit. For example, the cross-sections of the insert block 251 and the slot 151 can be of corresponding shapes, such as square or rectangular shapes with equal width at the top and bottom. The minimum tolerance dimension of the insert block 251 is greater than the maximum tolerance dimension of the slot 151 so that they can fit together tightly to avoid the insert block 251 moving relative to the slot 151. It can also prevent the first terminal block 20 and the second terminal block 30 from shifting or separating relative to the insulating housing 10 due to the elastic deformation of the first elastic terminal 21 and the second elastic terminal 31. This embodiment is not shown in the figure.

[0071] Please check again Figure 3 , Figure 6 and Figure 7As shown, in this embodiment, the first terminal block 20 includes a front side 22 and a rear side 23. The front side 22 is closer to the insertion interface 11 of the insulating housing 10 than the rear side 23. The position of the second fitting member 25 is preferably adjacent to the rear side 23. Specifically, when each first electrical contact end 211 of each first elastic terminal 21 is subjected to a force in the direction of the top wall 12, causing each first main body section 212 to undergo elastic deformation, the front side 22 of each first terminal block 20 will form a fulcrum. Therefore, the closer the area of ​​each first main body section 212 is to the rear side 23 of the first terminal block 20, the greater the amount of movement. Thus, the closer the second fitting member 25 of the first terminal block 20 is to the rear side 23, the more effectively it can prevent the first terminal block 20 from moving towards the bottom wall 13 under the influence of the elastic deformation of each first main body section 212.

[0072] like Figure 9 The figure shown is a cross-sectional view of the third embodiment of the socket connector of the present invention. The difference between this embodiment and the first and second embodiments is that the insert block 251B in this embodiment is an L-shaped block protruding from the surface of the first terminal block 20, and the top of the insert block 251B has a hook 252B, which extends toward the insertion interface 11 of the insulating housing 10. The slot 151B is located inside the insulating housing 10, and the opening of the slot 151B faces the assembly port 16. When the first terminal block 20 is inserted, the hook 252B of the insert block 251B can be inserted into the slot 151B to hook the top wall 12 of the insulating housing 10, so that the first terminal block 20 and the insulating housing 10 are firmly connected and separated.

[0073] In some embodiments, the fixing seat 40 may be further connected to the bottom wall 13 of the insulating housing 10 to more effectively prevent the second terminal seat 30 from moving towards the top wall 12 and separating from the insulating housing 10 due to the elastic deformation of the second main body sections 312 of each of the second elastic terminals 31. Figure 3 , Figure 6 and Figure 7As shown, in this embodiment, a first coupling member 131 is provided on the side of the bottom wall 13 of the insulating housing 10 away from the insertion interface 11. The first coupling member 131 includes at least one protruding rib 132. The fixing seat 40 extends further downward to form a connecting portion 41, wherein the connecting portion 41 is a block extending towards the bottom wall 13. The connecting portion 41 is provided with a second coupling member 411, which includes at least one groove 412, and the opening direction of each groove 412 faces the insertion interface 11. The protruding ribs 132 provided on the bottom wall 13 of the insulating housing 10 are correspondingly inserted into the grooves 412 of the fixing seat 40 and are securely coupled to each other. In this way, the second terminal block 30 can be clamped between the bottom wall 13 and the fixing seat 40, and further avoids separation due to elastic deformation of each second main body section 312. In detail, since the insulating housing 10 is fixed to the circuit board of the electronic product (not shown in the figure), and the bottom wall 13 of the insulating housing 10 is connected and fixed to the fixing base 40, the fixing base 40 can be positioned, and the second terminal block 30 clamped between the bottom wall 13 and the fixing base 40 can also be stably positioned, effectively preventing the second terminal block 30 from being easily moved by force.

[0074] In summary, compared with known technologies, the socket connector 1 of the present invention, through the first terminal block 20 and the second fitting member 25 correspondingly fitted and fixed to the first fitting member 15 on the top wall 12 of the insulating housing 10, allows the plug connector 2 to be inserted from the plug interface 11 and abut against the first electrical contact end 211 and the second electrical contact end 311. The first terminal block 20 and the second terminal block 30 will not shift or separate relative to the insulating housing 10 due to the elastic deformation of the first elastic terminal 21 and the second elastic terminal 31. This achieves the desired electrical connection effect without affecting the electrical characteristics of the connector (such as contact impedance, insulation impedance, withstand voltage or electromagnetic interference).

[0075] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A socket electrical connector, comprising: An insulating housing includes a top wall, a bottom wall, and two side walls. The two side walls are respectively connected to the top wall and the bottom wall to form a cavity. The top wall is provided with a first fitting member, which includes at least one slot. The two ends of the insulating housing are respectively provided with a plug-in interface and an assembly port. The cavity communicates with the plug-in interface and the assembly port. The top wall has an inner surface. The slot is recessed in the inner surface and extends to the assembly port. The cross-section of the slot includes a bottom opening and a top. The bottom opening is closer to the bottom wall than the top, and the width of the bottom opening is smaller than the width of the top. A first terminal block is disposed inside the insulating housing. The first terminal block is provided with a plurality of first elastic terminals and a second fitting member. The second fitting member includes at least one insert block, which is correspondingly fitted and fixed in the at least one slot. Each first elastic terminal includes a first electrical contact end, a first welding end, and a first main body section connected between the first electrical contact end and the first welding end. The first main body section is fixed to the first terminal block. The first terminal block is correspondingly fitted and fixed to the first fitting member on the top wall by the second fitting member. as well as A second terminal block is disposed inside the insulating housing. The second terminal block is provided with a plurality of second elastic terminals. Each second elastic terminal includes a second electrical contact end, a second welding end, and a second main body section connected between the second electrical contact end and the second welding end. The second main body section is fixed to the second terminal block. The second electrical contacts and the first electrical contacts are adjacent to the plug interface and maintain a distance.

2. The socket electrical connector as described in claim 1, characterized in that, The slot and the insert block have a dovetail-shaped cross-section.

3. The socket electrical connector as described in claim 1, characterized in that, The slot and the insert block have a T-shaped cross-section.

4. The socket electrical connector as described in claim 1, characterized in that, The first terminal block includes a front side and a rear side opposite to each other, the front side being closer to the insertion interface than the rear side, and the second fitting being adjacent to the rear side.

5. The socket connector as claimed in claim 1 further includes a fixing base, the fixing base being fixed between the first terminal block and the second terminal block, and the fixing base being connected to the bottom wall of the insulating housing.

6. The socket electrical connector as described in claim 5, characterized in that, The bottom wall has a first connecting member on the side away from the plug interface, and the fixing seat extends downward to a connecting part, which has a second connecting member, and the first connecting member is correspondingly connected to the second connecting member.

7. The socket electrical connector as described in claim 6, characterized in that, The first connector includes at least one protruding rib, and the second connector includes at least one groove, with the at least one protruding rib correspondingly inserted into the at least one groove.

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