Connector structure fixedly connected with shell

Abstract

The utility model discloses a connector structure fixedly connected with a housing, comprising a housing, a PCB and a terminal group, the terminal group is welded and fixed at one end of the PCB, one end of the PCB welded with the terminal group is inserted into the housing, the housing is provided with a contact window corresponding to the terminal group, a first insulator is formed in the contact window through injection molding, and the first insulator is provided with a second insulator. The PCB and the terminal group are fixed in the shell through the first insulator, the surface of one end, extending out of the shell, of the PCB is provided with a bonding pad, one side, close to the shell, of the bonding pad is provided with soldering tin in a reserved mode, one end, away from the contact window, of the shell is in contact with the soldering tin, and the soldering tin is welded and fixed to the bonding pad through heating melting. The shell is connected and conducted with the PCB, and the surface of the soldering tin is wrapped with the first insulator. The utility model provides the connector structure fixedly connected with the shell, the connection strength between the shell and the PCB is improved, and the conduction between the shell and the PCB in the use process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector structure for fixedly connecting a shell. Background Art

[0002] The existing connector structure mainly includes a PCB board, a terminal, an insulator and a shell. A complete connector is formed by welding one end of the terminal to one end of the PCB board, injection molding the insulator to the outside of the terminal, and wrapping the shell around the outside of the insulator.

[0003] However, in the existing connector structure, the shell needs to be connected to the electronic power supply end to achieve a permanent connection and conduction structure. To meet this requirement, the shell and the PCB board are grounded and short-circuited. The existing connection methods are mainly interference and external force pressure methods. The shell and the contact points on the PCB board are contacted to achieve conduction. After the assembly is completed, it is easy to be worn, loosened and other unstable phenomena during use, resulting in product functional defects. Utility Model Content

[0004] The utility model aims to provide a connector structure for fixedly connecting a shell, thereby improving the connection strength between the shell and a PCB board and ensuring that the shell and the PCB board are connected during use.

[0005] The technical solution adopted by a connector structure for fixedly connecting a housing disclosed in the utility model is:

[0006] A connector structure fixedly connected to a shell comprises a shell, a PCB board and a terminal group, wherein the terminal group is welded and fixed to one end of the PCB board, and the end of the PCB board welded with the terminal group is inserted into the shell, a contact window is provided in the shell corresponding to the terminal group, a first insulator is formed by injection molding inside the contact window, the first insulator fixes the PCB board and the terminal group in the shell, a solder pad is provided on the surface of the PCB board extending out of the shell, solder is reserved on the side of the solder pad close to the shell, the shell contacts the solder at one end away from the contact window, the solder is heated and melted to weld the shell and the solder pad to fix, the shell is connected and conductive to the PCB board, and the first insulator is wrapped around the solder surface.

[0007] As a preferred solution, the end of the PCB board extending out of the shell is a widened area, the end of the shell away from the contact window is clamped at both ends of the widened area, and the pad and solder correspond to the widened area close to one end of the shell.

[0008] As a preferred solution, pads are provided on the upper surface and the lower surface of the PCB board respectively, and the solder is provided corresponding to the pads.

[0009] As a preferred solution, a first welding point is preset at a position of the PCB board corresponding to the terminal group, and the terminal group is fixed to the first welding point by welding.

[0010] As a preferred solution, a second soldering point is provided at one end of the PCB board extending to the housing, and the second soldering point is arranged on both sides of the upper surface and the lower surface of the PCB board.

[0011] As a preferred solution, the solder and the shell are welded by brushing tin at high temperature or by secondary heating.

[0012] As a preferred solution, electronic components are provided on the surface of the PCB board, and the surface of the electronic components is covered with a second insulator.

[0013] As a preferred solution, a glue groove is provided on the surface of the PCB board, and the glue groove extends out of the housing, and the second insulator is covered on the upper surface and the lower surface of the PCB board through the glue groove.

[0014] As a preferred solution, a tail plug is further provided at the end of the shell, the tail plug is inserted into the shell, the tail plug and the shell are interference fit, and the second insulator seals the tail plug.

[0015] The utility model discloses a connector structure for fixedly connecting a shell, which has the beneficial effect that when the PCB board is inserted into the shell, the end of the shell away from the contact window is brought into contact with the solder, the preset solder is melted by heating, and the melted solder connects the shell and the solder pad, so that when the solder is cooled and solidified, the shell and the solder pad are fixedly connected, thereby avoiding looseness during use, resulting in poor contact between the shell and the PCB board, ensuring that the shell and the PCB board are conductive during use, and then injection molding is performed to form a first insulator to further connect and fix the shell and the PCB board, and at the same time, the position of the terminal group corresponding to the contact window is fixed, so that the terminal group can be wrapped and reinforced by the first insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a connector structure for fixedly connecting a housing.

[0017] Figure 2 This is an exploded view of a connector structure for fixedly connecting a housing in the utility model.

[0018] Figure 3 It is a partial structural schematic diagram of a connector structure for fixedly connecting a housing in the utility model. DETAILED DESCRIPTION

[0019] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0020] Please refer to Figure 1 , Figure 2 and Figure 3 A connector structure fixedly connected to a shell 10 comprises a shell 10, a PCB board 20 and a terminal group 30, wherein the terminal group 30 is welded and fixed to one end of the PCB board 20, and the end of the PCB board 20 welded with the terminal group 30 is inserted into the shell 10, and a contact window 11 is provided in the shell 10 corresponding to the terminal group 30, and a first insulator 40 is formed by injection molding inside the contact window 11, and the first insulator 40 fixes the PCB board 20 and the terminal group 30 in the shell 10, and a soldering pad 21 is provided on the surface of the end of the PCB board 20 extending out of the shell 10, and a solder 22 is reserved on the side of the soldering pad 21 close to the shell 10, and the end of the shell 10 away from the contact window 11 contacts the solder 22, and the solder 22 is heated and melted to weld and fix the shell 10 and the soldering pad 21, so that the shell 10 and the PCB board 20 are connected and conductive, and the first insulator 40 is wrapped around the surface of the solder 22.

[0021] After the PCB board 20 is inserted into the shell 10, the end of the shell 10 away from the contact window 11 is brought into contact with the solder 22, and the preset solder is melted by heating. The melted solder 22 connects the shell 10 and the pad 21, so that when the solder 22 cools and solidifies, the shell 10 and the pad 21 are fixedly connected to avoid looseness during use, resulting in poor contact between the shell 10 and the PCB board 20, ensuring that the shell 10 and the PCB board 20 are conductive during use, and then injection molding is performed to form the first insulator 40 to further connect and fix the shell 10 and the PCB board 20, and at the same time, the terminal group 30 is fixed at the position corresponding to the contact window 11, so that the terminal group 30 can be wrapped and reinforced by the first insulator 40.

[0022] In the above scheme, the end of the PCB board 20 extending out of the housing 10 is the widened area 23, and the end of the housing 10 away from the contact window 11 is clamped at both ends of the widened area 23, and the pads 21 and the solder 22 correspond to the widened area 23 close to the end of the housing 10, so that the PCB board 20 presents a T-shaped structure, which can be better clamped and fixed with the housing 10, and the protruding sides of the PCB board 20 can better melt and fix the solder 22 and the pads 21. And the upper surface and the lower surface of the PCB board 20 are correspondingly provided with pads 21, and the solder 22 is set corresponding to the pads 21.

[0023] A first solder joint 25 is preset at a position of the PCB board 20 corresponding to the terminal group 30, and the terminal group 30 is fixed to the first solder joint 25 by soldering, so that the PCB board 20 is inserted into one end of the housing 10, which facilitates the soldering and fixing of the terminal group 30 and the PCB board 20. A second solder joint 26 is provided at one end of the PCB board 20 extending to the housing 10, and the second solder joint 26 is arranged on both sides of the upper surface and the lower surface of the PCB board 20, and the first solder joint 25 can be fixed to the inner wall of the housing 10 by soldering by laser welding or heating welding.

[0024] The solder 22 and the housing 10 are soldered together with the PCB board 20 at high temperature after tinning, or the PCB board 20 is assembled with the housing 10 after tinning points are brushed on the PCB board 20 and then welded with the housing 10 by secondary high temperature welding.

[0025] In addition, an electronic component 27 is disposed on the surface of the PCB board 20 . The surface of the electronic component 27 is covered with a second insulator 50 . The second insulator 50 is integrally formed with the first insulator 40 . The second insulator 50 is used to wrap and protect the electronic component 27 .

[0026] The surface of the PCB board 20 is provided with a glue groove, and the glue groove extends out of the housing 10. The second insulator 50 covers the upper surface and the lower surface of the PCB board 20 through the glue groove, so that when the second insulator 50 is formed by injection molding, it can be filled to the upper surface and the lower surface of the PCB board 20 at one time, which speeds up the assembly speed. A tail plug 12 is also provided at the end of the housing 10. The tail plug 12 is inserted into the interior of the housing 10, and the second insulator 50 blocks the tail plug 12. The tail plug 12 can be used to fix the PCB board 20 when the second insulator 50 is not injected, and the sealing inside the housing 10 is also better improved.

[0027] The utility model provides a connector structure for fixedly connecting a shell. When a PCB board is inserted into the shell, one end of the shell away from the contact window is contacted with solder, and a preset solder is melted by heating. The melted solder connects the shell and the solder pad, so that when the solder is cooled and solidified, the shell and the solder pad are fixedly connected, thereby avoiding looseness during use, resulting in poor contact between the shell and the PCB board, ensuring that the shell and the PCB board are connected during use, and then injection molding is performed to form a first insulator to further connect and fix the shell and the PCB board, and at the same time, the position of the terminal group corresponding to the contact window is fixed, so that the terminal group can be wrapped and reinforced by using the first insulator.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A connector structure fixedly connected to a housing, comprising a housing, a PCB board and a terminal group, wherein the terminal group is welded and fixed to one end of the PCB board, and the end of the PCB board welded with the terminal group is inserted into the housing, and the housing is provided with a contact window corresponding to the terminal group, and a first insulator is formed by injection molding inside the contact window, and the first insulator fixes the PCB board and the terminal group in the housing, characterized in that: A soldering pad is provided on the surface of one end of the PCB board extending out of the shell, and solder is reserved on the side of the soldering pad close to the shell. The end of the shell away from the contact window is in contact with the solder. The solder is melted by heating to weld the shell and the soldering pad to fix it. The shell is connected and conductive to the PCB board, and the first insulator is wrapped around the solder surface.

2. A connector structure for fixedly connecting a housing as claimed in claim 1, characterized in that: One end of the PCB board extending out of the shell is a widened area, one end of the shell away from the contact window is clamped at two ends of the widened area, and the pad and solder correspond to the widened area close to one end of the shell.

3. A connector structure for fixedly connecting a housing as claimed in claim 2, characterized in that: The upper surface and the lower surface of the PCB board are both correspondingly provided with soldering pads, and the solder is arranged corresponding to the soldering pads.

4. A connector structure for fixedly connecting a housing as claimed in claim 1, characterized in that: A first welding point is preset at a position of the PCB board corresponding to the terminal group, and the terminal group is fixed to the first welding point by welding.

5. A connector structure for fixedly connecting a housing as claimed in claim 4, characterized in that: A second soldering point is provided at one end of the PCB board extending to the housing, and the second soldering point is arranged on both sides of the upper surface and the lower surface of the PCB board.

6. A connector structure for fixedly connecting a housing as claimed in claim 1, characterized in that: The solder and the shell are welded by brushing tin at high temperature or by secondary heating.

7. A connector structure for fixedly connecting a housing as claimed in claim 1, characterized in that: The surface of the PCB board is provided with electronic components, and the surface of the electronic components is covered with a second insulator.

8. A connector structure for fixedly connecting a housing as claimed in claim 7, characterized in that: The surface of the PCB board is provided with a glue groove, and the glue groove extends out of the shell, and the second insulator is covered on the upper surface and the lower surface of the PCB board through the glue groove.

9. A connector structure for fixedly connecting a housing as claimed in claim 8, characterized in that: A tail plug is also provided at the end of the shell. The tail plug is inserted into the shell. The tail plug is interference fit with the shell, and the second insulator seals the tail plug.

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