TWI889008B - Connector - Google Patents

Abstract

The present invention discloses a connector, and the connector includes a case and a base embedded in the base. An insertion cavity is disposed on one terminal of the base, and an accommodation cavity is disposed on the terminal of the base far away from the insertion cavity, and the accommodation cavity of the base has an insulation body. A compatible cavity is disposed on the insulation body, and a main circuit board is disposed on the opening of the insulation body. A positioning horizontal plate protruding outward is disposed on the top of the sidewall of the insulation body on one side of the insulation body facing the insertion cavity, and two positioning bases protruding outward are disposed on two ends of the positioning horizontal plate. A terminal module is disposed on one side of the positioning horizontal plate far away from the compatible cavity and is located between the two positioning bases of the two ends of the positioning horizontal plate, and a RJ terminal is disposed on the terminal module by injection molding. An auxiliary circuit board is disposed on one end of the terminal module far away from the opening of the insulation body, and the soldering end of the RJ terminal far away from the free end of the RJ terminal passes through the terminal module and is disposed on the auxiliary circuit board. The present invention achieves the function by the connection of the bottom auxiliary circuit board and have the effect of keeping the high-temperature process terminals on the circuit board, thereby improving the yield rate of the product.

Description

Connector

The present invention relates to the field of connector technology, and in particular to a connector that can improve the yield rate of terminal assembly process.

Connectors are mainly installed on computer peripherals, servers, routers, switching equipment and other products for data transmission and peripheral connection, and are widely used in the fields of network, communication, automatic control, etc. Due to the structure and process limitations of the RJ45 connector, the RJ45 terminal can only be fixed on the circuit board by soldering. At present, in the module process, the terminal is directly inserted into the PCB, and the connection between the terminal and the circuit board is not protected. The temperature during module assembly often exceeds the melting point of tin. After high temperature furnace (infrared IR furnace), the tin is easy to melt, causing the gravity of the front end of the RJ45 terminal to sink after the IR furnace, making the product lose its function; in the existing product structure, fixing the terminal by soldering is easy to reduce the product yield rate.

In order to solve the problems existing in the existing technology, the purpose of the present invention is to provide a connector to ensure that the terminal does not sink after passing through the IR furnace, effectively improving the process yield.

To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a connector, including a shell and a base embedded in the shell, a plug-in cavity is provided at one end of the base, a receiving cavity is provided at one end of the base away from the plug-in cavity, an insulating body is provided in the receiving cavity of the base, a receiving cavity is provided on the insulating body, and a main circuit board is provided at the open end (top end) of the insulating body. A positioning horizontal plate protruding (extending) outward is provided at the top of the side wall of the insulating body facing the plug-in cavity, and positioning seats protruding outward (away from the receiving cavity) are respectively provided at both ends of the positioning horizontal plate. Positioning horizontal plate far away A terminal module is provided on one side of the accommodating cavity, and the terminal module is clamped between the positioning seats at both ends of the positioning horizontal plate, and RJ terminals are injection molded on the terminal module. An auxiliary circuit board is provided at one end of the terminal module away from the opening surface of the insulating body, and the welding end of the RJ terminal far away from the free end penetrates the terminal module and is set (welded and connected) on the auxiliary circuit board. The auxiliary circuit board is provided with a transfer terminal, and the other end of the transfer terminal extending upward from the auxiliary circuit board penetrates the positioning horizontal plate and is set on the main circuit board.

Furthermore, in some embodiments, the top end of the positioning seat protrudes above the top surface of the positioning horizontal plate, the terminal module is arranged adjacent to the positioning horizontal plate, and the top of the terminal module close to the insulating body is provided with an inner stop seat protruding outward, and the bottom end of the inner stop seat of the terminal module is arranged to abut against the top surface of the positioning horizontal plate of the insulating body.

Furthermore, in some embodiments, the bottom surface of the positioning horizontal plate (the side away from the opening surface of the insulating body) is provided with a downwardly protruding abutment seat, and the abutment seat is arranged at both ends of the bottom surface of the positioning horizontal plate. An auxiliary circuit board is arranged below the bottom surface of the positioning horizontal plate, and the auxiliary circuit board is arranged parallel to the positioning horizontal plate, and the auxiliary circuit board is arranged parallel to the main circuit board.

Furthermore, in some embodiments, the top surface of the positioning horizontal plate is flush with the opening surface of the insulating body, the free end of the RJ terminal is arranged in the plug-in cavity, the RJ terminal is fixedly embedded in the terminal module, the end of the terminal module facing the bottom surface of the insulating body is provided with an auxiliary circuit board, and the top end of the positioning seat protrudes above the opening surface of the insulating body.

Furthermore, in some embodiments, the auxiliary circuit board is disposed on the abutment seat, and one end of the auxiliary circuit board close to the insulating body is disposed adjacent to the side wall of the insulating body (front).

Furthermore, in some embodiments, a positioning groove is provided on the inner side of the positioning seat, the opening of the positioning groove faces the bottom end of the insulating body, and the opening of the positioning groove faces one end of the blocking seat. The positioning groove is provided on the inner side of the positioning seat near the positioning cross plate, and an inwardly protruding limit platform is provided on the inner side of the positioning seat away from the outer side of the positioning cross plate.

There is a distance between the limit platform and the positioning cross plate, and the positioning groove is arranged between the limit platform and the positioning cross plate on the inner side of the positioning seat. The positioning groove and the limit platform are arranged adjacent to each other on the positioning seat (inner side) from the outer side (outward) of the positioning cross plate.

Furthermore, in some embodiments, the side surfaces at both ends of the terminal module are respectively provided with limit grooves that match the limit platform, and the limit grooves (from top to bottom) are clamped on the limit platform. The upper limit groove of the terminal module is provided with a plug-in block that matches the distance between the corresponding limit platform and the positioning cross plate on one side close to the positioning cross plate, and the plug-in blocks on the side surfaces at both ends of the terminal module (from top to bottom) are inserted in the distance between the limit platform and the positioning cross plate.

Furthermore, in some embodiments, a positioning block matching the positioning groove is provided above the card insertion block, the width of the positioning block is less than or equal to the width of the distance between the limit platform and the positioning cross plate, the positioning blocks are respectively arranged on the sides of both ends of the terminal module, and the positioning blocks are embedded in the positioning groove.

Furthermore, in some embodiments, a plurality of electrical components are provided on the main circuit board, and the plurality of electrical components are arranged in the accommodation cavity of the insulating body. A card hole is provided on the side wall of the base, and a buckle corresponding to the card hole of the base is provided on the outer side wall of the insulating body, and the buckle of the insulating body is embedded in the card hole of the base.

Furthermore, in some embodiments, a positioning column protruding outward is provided on the top of the side wall of the insulating body, and a positioning hole matching the positioning column is provided on the main circuit board, and the positioning hole of the main circuit board is sleeved on the positioning column at the top of the insulating body.

The invention is applied to the RJ45 connector. The RJ terminal is fixedly inserted into the terminal module, and the function is realized through the bottom auxiliary circuit board conversion. In the high-temperature (infrared IR furnace) process of the product, the auxiliary circuit board is welded at the bottom of the RJ terminal. After the solder melts, the terminal module can limit the RJ terminal to achieve the effect of not sinking the terminal in the high-temperature process, thereby achieving the purpose of improving product yield and reducing costs.

11: Shell

13: Base

14: Plug cavity

16: Card hole

17: RJ terminal

18: Main circuit board

19: Positioning hole

21: Insulated body

22: Accommodation cavity

23: Positioning column

24: Buckle

25: Positioning crossbar

26: Positioning seat

27: Limiting table

28: Positioning slot

29: Blocking seat

31: Terminal module

32: Inner seat

33: Positioning card block

34: Limiting slot

35: Card slot

36: Adapter terminal

37: Auxiliary circuit board

38: Accommodation cavity

39: Electrical components

Figure 1 is a schematic diagram of the structure of the embodiment of the present invention; Figure 2 is a cross-sectional structural diagram of the base part of the embodiment of the present invention; Figure 3 is an assembly schematic diagram of the insulating body part of the embodiment of the present invention; Figure 4 is a cross-sectional schematic diagram of the terminal module part of the embodiment of the present invention; Figure 5 is an exploded schematic diagram of the terminal module part of the embodiment of the present invention; Figure 6 is a three-dimensional structural diagram of the base part of the embodiment of the present invention; Figure 7 is an assembly schematic diagram of the terminal module part of the embodiment of the present invention.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In order to further understand the features, technical means and specific purposes and functions achieved by the present invention, and analyze the advantages and spirit of the present invention, the following detailed description of the present invention in combination with the attached drawings and specific implementation methods is further understood.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "front", "rear" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

Please refer to Figure 1, which shows the three-dimensional structure of the present application. The present invention includes a housing 11 and a base 13 embedded in the housing 11, one end of the base 13 is provided with a plug-in cavity 14, and an end of the base 13 away from the plug-in cavity 14 is provided with a receiving cavity 38. Please refer to Figure 2, which shows the relevant structure of the components provided in the receiving cavity 38 of the present application. An insulating body 21 is provided in the receiving cavity 38 of the base 13, and a receiving cavity 22 is provided on the insulating body 21. The main circuit board 18 is provided at the open end (top end) of the insulating body 21.

See Figure 3, which shows the related structure of the positioning column 23 on the insulating body 21 of the present application. The top of the side wall of the insulating body 21 is provided with a positioning column 23 protruding outward, and the main circuit board 18 is provided with a positioning hole 19 matching the positioning column 23. The positioning hole 19 of the main circuit board 18 is sleeved on the positioning column 23 at the top of the insulating body 21.

Furthermore, in some of the embodiments, see Figure 6, which shows the specific structure of the positioning seat 26 on the insulating body 21 of the present application. The top of the side wall of the insulating body 21 facing the plug-in cavity 14 is provided with a positioning horizontal plate 25 protruding (extending) outward, the top surface of the positioning horizontal plate 25 is flush with the opening surface of the insulating body 21, and the two ends of the positioning horizontal plate 25 are respectively provided with positioning seats 26 protruding outward (away from the accommodating cavity 22). A terminal module 31 is provided on one side of the positioning cross plate 25 away from the accommodating cavity 22. The terminal module 31 is clamped between the positioning seats 26 at both ends of the positioning cross plate 25. An RJ terminal 17 is injection molded on the terminal module 31, and the free end of the RJ terminal 17 is arranged in the plug-in cavity 14. An auxiliary circuit board 37 is provided at one end of the terminal module 31 away from the opening surface of the insulating body 21. In other words, an auxiliary circuit board 37 is provided at one end of the terminal module 31 facing the bottom surface of the insulating body 21, and the welding end of the RJ terminal 17 away from the free end penetrates the terminal module 31 and is arranged (welded and connected) on the auxiliary circuit board 37.

Furthermore, in some of the embodiments, the top end of the positioning seat 26 protrudes above the top surface of the positioning cross plate 25, that is, the top end of the positioning seat 26 protrudes above the opening surface of the insulating body 21, and the terminal module 31 is arranged adjacent to the positioning cross plate 25. The top of the terminal module 31 close to the insulating body 21 is provided with an inner stop 32 protruding outward, and the bottom end of the inner stop 32 of the terminal module 31 is arranged to abut against the top surface of the positioning cross plate 25 of the insulating body 21.

See Figure 5, which shows the positional relationship between the positioning cross plate 25 and the insulating body 21. The bottom surface of the positioning cross plate 25 (the side away from the opening surface of the insulating body 21) is provided with a downwardly protruding abutment seat 29, and the abutment seat 29 is arranged at both ends of the bottom surface of the positioning cross plate 25. An auxiliary circuit board 37 is arranged below the bottom surface of the positioning cross plate 25, and the auxiliary circuit board 37 is arranged parallel to the positioning cross plate 25. Furthermore, the auxiliary circuit board 37 is arranged parallel to the main circuit board 18.

See Figure 2, which shows the positional relationship between the auxiliary circuit board 37 and the insulating body 21. The auxiliary circuit board 37 is abutted against the abutment seat 29, and one end of the auxiliary circuit board 37 close to the insulating body 21 is arranged close to the (front) side wall of the insulating body 21. The auxiliary circuit board 37 is provided with a transfer terminal 36, and the other end of the transfer terminal 36 extending from the auxiliary circuit board 37 passes through the positioning cross plate 25 and is arranged on the main circuit board 18. The RJ terminal 17 is fixedly embedded in the terminal module 31, and the function is realized through the transfer of the auxiliary circuit board 37 at the bottom of the terminal module 31. In the high-temperature process of the product, the welding end of the RJ terminal 17 is set (IR welding) on the auxiliary circuit board 37 at the bottom of the terminal module 31, and a positioning horizontal plate 25 is added on the insulating body 21 to limit the position. After the IR solder melts, the terminal module 31 can limit the RJ terminal 17 to achieve the effect of not sinking the RJ terminal 17 during the high-temperature process (IR furnace), ensuring that the RJ terminal 17 does not sink on the main circuit board 18 after IR welding.

Furthermore, in some of the embodiments, see FIG. 7 , which shows the relevant structure of the positioning seat 26. A positioning groove 28 is provided on the inner side of the positioning seat 26, and the opening of the positioning groove 28 faces the bottom end of the insulating body 21, that is, the opening of the positioning groove 28 faces the end of the abutment seat 29. The positioning groove 28 is provided on the inner side of the positioning seat 26 near the positioning cross plate 25, and the inner side of the positioning seat 26, which is far from the outer side of the positioning cross plate 25, is provided with an inwardly protruding limit platform 27. As shown in FIG. 5 , there is a distance D between the limit platform 27 and the positioning cross plate 25 , and the positioning groove 28 is arranged between the limit platform 27 and the positioning cross plate 25 on the inner side of the positioning seat 26 , and the positioning groove 28 and the limit platform 27 are arranged adjacent to each other on the positioning seat 26 (inner side) from the outer side (outward) of the positioning cross plate 25 .

Furthermore, in some of the embodiments, see the structural display of the two end sides of the terminal module 31 in Figure 7. The two end sides of the terminal module 31 are provided with limit grooves 34 that match the limit platform 27, and the limit grooves 34 (from top to bottom) are clamped on the limit platform 27. The upper limit groove 34 of the terminal module 31 is close to the positioning cross plate 25. The side is provided with a plug-in block 35 that matches the distance D between the corresponding limit platform 27 and the positioning cross plate 25. The plug-in blocks 35 on the two end sides of the terminal module 31 (from top to bottom) are inserted in the distance D between the limit platform 27 and the positioning cross plate 25.

See the structural display between the positioning block 33 and the positioning groove 28 in Figure 4. A positioning block 33 matching the positioning groove 28 is provided above the card block 35. The width of the positioning block 33 is less than or equal to the width of the distance D between the limit platform 27 and the positioning cross plate 25. The positioning block 33 is arranged on the side surfaces of both ends of the terminal module 31, and the positioning block 33 is embedded in the positioning groove 28.

The main circuit board 18 is provided with a plurality of electrical components 39, and the plurality of electrical components 39 are arranged in the accommodation cavity 22 of the insulating body 21. A clamping hole 16 is provided on the side wall of the base 13, and a clamping buckle 24 matching the clamping hole 16 of the base 13 is provided on the outer side wall of the insulating body 21, and the clamping buckle 24 of the insulating body 21 is embedded in the clamping hole 16 of the base 13.

The above embodiments only express a plurality of preferred embodiments of the present invention, and the description thereof is relatively specific and detailed. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge in the relevant fields, and should not be understood as limiting the scope of the present invention. It should be pointed out that for those with ordinary knowledge in the relevant technical field, multiple variations and improvements can be made without departing from the concept of the present invention. The changes and modifications made by those with ordinary knowledge in the relevant technical field do not depart from the spirit and scope of the present invention, and all of these belong to the protection scope of the patent application scope attached to the present invention. Therefore, the protection scope of the patent for this invention shall be based on the scope of the attached patent application.

11: Shell

13: Base

14: Plug cavity

16: Card hole

17: RJ terminal

18: Main circuit board

19: Positioning hole

21: Insulated body

22: Accommodation cavity

23: Positioning column

24: Buckle

25: Positioning crossbar

26: Positioning seat

27: Limiting table

28: Positioning slot

29: Blocking seat

31: Terminal module

32: Inner seat

34: Limiting slot

37: Auxiliary circuit board

Claims (9)

A connector comprises: a housing (11) and a base (13) embedded in the housing (11); a plug-in cavity (14) is provided at one end of the base (13); a receiving cavity (38) is provided at one end of the base (13) away from the plug-in cavity (14); an insulating body (21) is provided in the receiving cavity (38) of the base (13); a receiving cavity (22) is provided on the insulating body (21); a main electrical connector is provided at the open end of the insulating body (21); The insulating body (21) is provided with a positioning cross plate (25) protruding outwardly on the top of the side wall facing the plug-in cavity (14), and the two ends of the positioning cross plate (25) are respectively provided with a positioning seat (26) protruding outwardly; the positioning cross plate (25) is provided with a terminal module (31) on the side away from the accommodating cavity (22), and the terminal module (31) is clamped between the positioning seats (26) at the two ends of the positioning cross plate (25). An RJ terminal (17) is injection molded; an auxiliary circuit board (37) is provided at one end of the terminal module (31) away from the opening surface of the insulating body (21); a welding end of the RJ terminal (17) away from a free end penetrates the terminal module (31) and is then arranged on the auxiliary circuit board (37); a transfer terminal (36) is provided on the auxiliary circuit board (37); the other end of the transfer terminal (36) extending upward from the auxiliary circuit board (37) penetrates the positioning cross plate (25) and is then The terminal module (31) is arranged on the main circuit board (18); wherein the top end of the positioning seat (26) protrudes above the top surface of the positioning cross plate (25); the terminal module (31) is arranged adjacent to the positioning cross plate (25); the top of one side of the terminal module (31) close to the insulating body (21) is provided with an inner stop seat (32) protruding outward; the bottom end of the inner stop seat (32) of the terminal module (31) is arranged to abut against the top surface of the positioning cross plate (25) of the insulating body (21). According to the connector described in claim 1, the bottom surface of the positioning cross plate (25) is provided with a stopper (29) protruding downward, and the stopper (29) is arranged at two ends of the bottom surface of the positioning cross plate (25); the auxiliary circuit board (37) is arranged below the bottom surface of the positioning cross plate (25), and the auxiliary circuit board (37) is arranged parallel to the positioning cross plate (25), and the auxiliary circuit board (37) is arranged parallel to the main circuit board (18). According to the connector described in claim 1, the top surface of the positioning cross plate (25) is flush with the opening surface of the insulating body (21), the free end of the RJ terminal (17) is arranged in the plug-in cavity (14), the RJ terminal (17) is fixedly embedded in the terminal module (31), the auxiliary circuit board (37) is arranged at one end of the terminal module (31) facing the bottom surface of the insulating body (21), and the top end of the positioning seat (26) protrudes above the opening surface of the insulating body (21). According to the connector described in claim 1, the auxiliary circuit board (37) is disposed in contact with a stop seat (29), and one end of the auxiliary circuit board (37) close to the insulating body (21) is disposed adjacent to the side wall of the insulating body (21). According to the connector described in claim 1, a positioning groove (28) is provided on the inner side of the positioning seat (26), the opening of the positioning groove (28) is toward the bottom end of the insulating body (21), the opening of the positioning groove (28) is toward one end of a stop seat (29), the positioning groove (28) is arranged on the inner side of the positioning seat (26) close to the positioning cross plate (25), and the inner side of the positioning seat (26) is farther from the positioning cross plate (25). A limit platform (27) protruding inward is provided on the outer side of the horizontal plate (25); there is a distance between the limit platform (27) and the positioning horizontal plate (25); the positioning groove (28) is provided between the limit platform (27) and the positioning horizontal plate (25) on the inner side of the positioning seat (26); the positioning groove (28) and the limit platform (27) are provided adjacent to each other in sequence on the positioning seat (26) from the outer side of the positioning horizontal plate (25). According to the connector described in claim 5, the side surfaces of both ends of the terminal module (31) are respectively provided with a limit groove (34) matching with the limit platform (27), and the limit groove (34) is clamped on the limit platform (27); the side of the limit groove (34) on the terminal module (31) close to the positioning cross plate (25) is provided with a plug-in block (35) matching the distance between the limit platform (27) and the positioning cross plate (25), and the plug-in block (35) on the side surfaces of both ends of the terminal module (31) is inserted in the distance between the limit platform (27) and the positioning cross plate (25). According to the connector described in claim 6, a positioning block (33) matching with the positioning groove (28) is provided above the insertion block (35), the width of the positioning block (33) is less than or equal to the width of the distance between the limit platform (27) and the positioning cross plate (25), the positioning block (33) is respectively arranged on the side surfaces of both ends of the terminal module (31), and the positioning block (33) is embedded in the positioning groove (28). According to the connector described in claim 1, the main circuit board (18) is provided with a plurality of electrical components (39), and the plurality of electrical components (39) are arranged in the accommodation cavity (22) of the insulating body (21); a clamping hole (16) is opened on the side wall of the base (13), and a clamping buckle (24) matching with the clamping hole (16) of the base (13) is provided on the outer side wall of the insulating body (21), and the clamping buckle (24) of the insulating body (21) is embedded in the clamping hole (16) of the base (13). According to the connector described in claim 1, a positioning column (23) protruding outward is provided on the top of the side wall of the insulating body (21), a positioning hole (19) matching with the positioning column (23) is provided on the main circuit board (18), and the positioning hole (19) of the main circuit board (18) is sleeved on the positioning column (23) on the top of the insulating body (21).