Conductive connection structure and power adapter thereof

Abstract

The application relates to the technical field of power adapters, and provides a conductive connecting structure which comprises a mounting shell, two pins, two conductive elastic sheets and a PCB (Printed Circuit Board) plate; two accommodating grooves are formed in the mounting shell, and the two pins are arranged on the outer side of the mounting shell; the conductive elastic sheet comprises a first connecting part and a second connecting part, the first connecting part is arranged at one end of the second connecting part, and the first connecting part is mounted on the PCB plate; when the PCB plate is mounted on the mounting shell, the second connecting part is arranged through the accommodating groove and abuts against the pin. Based on the above, the mounting of the conductive connecting structure can be facilitated. In addition, the application further provides a power adapter.

Description

Technical Field

[0001] This application relates to the field of power adapters, and more particularly to a conductive connection structure and a power adapter thereof. Background Technology

[0002] A power adapter, also known as an external power supply, is a voltage conversion device for small portable electronic devices and appliances, commonly found in small electronic products such as mobile phones, LCD monitors, and laptops. The conductive connection structure is a crucial part of the power adapter.

[0003] In related technologies, the conductive connection structure includes a mounting housing, two pins, two conductive springs, and a PCB board. During installation, firstly, the two conductive pins are fixedly connected to the outside of the mounting housing at intervals, and the two conductive springs are installed on the inside of the mounting housing, with each conductive spring abutting against the two pins to achieve conductive connection between each conductive spring and each pin. Secondly, the PCB board is snapped into the inside of the mounting housing, so that the PCB board abuts against each conductive spring, thereby achieving conductive connection between each pin and the PCB board.

[0004] Regarding the aforementioned technologies, the limited space within the mounting housing makes the installation of the conductive springs difficult, especially since the conductive springs also need to be electrically connected to the pins, further complicating the installation of the conductive connection structure. Therefore, improvements are needed. Summary of the Invention

[0005] To facilitate the installation of the conductive connection structure, in a first aspect, this application provides a conductive connection structure.

[0006] The conductive connection structure provided in this application adopts the following technical solution: A conductive connection structure includes a mounting shell, two pins, two conductive springs, and a PCB board. The mounting shell has two clearance grooves, and the two pins are located on the outer side of the mounting shell. Each conductive spring includes a first connecting portion and a second connecting portion, with the first connecting portion located at one end of the second connecting portion and mounted on the PCB board. When the PCB board is mounted on the mounting shell, the second connecting portion passes through the clearance grooves and abuts against the pins.

[0007] By adopting the above technical solution, during the installation process, the two conductive spring contacts are first installed on the PCB board through the first connecting part, making the conductive spring contacts conductively connected to the PCB board. Then, the PCB board is installed in the mounting housing, so that the two second connecting parts are respectively inserted into the two clearance slots, and each second connecting part abuts against each pin, making the conductive spring contacts conductively connected to the pins, thereby realizing the conductive connection between the PCB board and each pin. The installation of the conductive spring contacts can be achieved simply by installing the PCB board on the mounting housing, which is convenient and simple to operate. Furthermore, the installation of the PCB board is not limited by the space within the mounting housing, thus facilitating the installation of the conductive connection structure.

[0008] Preferably, the first connecting portion includes a first connecting piece and a snap-fit ​​piece, the snap-fit ​​piece being disposed at the end of the first connecting piece away from the second connecting portion; a snap-fit ​​groove is formed on the PCB board, the snap-fit ​​piece is snapped into the snap-fit ​​groove, and the PCB board is pressed against the first connecting piece.

[0009] By adopting the above technical solution, by setting a first connecting piece and a snap-fit ​​piece, the snap-fit ​​piece snaps into the snap-fit ​​groove, and the PCB board is pressed against the first connecting piece. Under the elastic action of the first connecting piece and the snap-fit ​​piece, the first mounting part is snapped and fixed to the PCB board, so as to facilitate the installation of the conductive spring and the PCB board and ensure stable and reliable installation.

[0010] Preferably, the snap-fit ​​tab has limiting grooves on both sides near one end of the first connecting tab, and the PCB board is limited to the limiting grooves.

[0011] By adopting the above technical solution and setting a limiting groove, when the snap-fit ​​piece snaps into the snap-fit ​​groove, the PCB board is limited in the limiting groove, thereby preventing the first connecting part from falling off the PCB board and improving the installation stability of the first connecting part and the PCB board.

[0012] Preferably, the first connecting portion further includes a second connecting piece, one end of which is connected to the first connecting piece, and the other end is connected to the second connecting portion, and both the second connecting piece and the first connecting piece are pressed against the mounting shell.

[0013] By adopting the above technical solution and setting the second connecting piece, when the PCB board is installed on the mounting shell, the second connecting piece forces the first connecting piece to press against the inner wall of the mounting shell, and the first connecting piece bends and deforms towards the second connecting piece, so that the first connecting part is more tightly snapped into the PCB board; and the second connecting piece presses against the inner bottom wall of the mounting shell, minimizing the displacement of the conductive spring piece, thereby improving the stability of the conductive connection structure installation.

[0014] Preferably, the angle between the second connecting piece and the first connecting piece is an obtuse angle.

[0015] By adopting the above technical solution, and by setting the included angle between the second connecting piece and the first connecting piece to be an obtuse angle, the bending deformation angle of the first connecting piece is made larger, which further improves the snap-fit ​​stability between the first connecting part and the PCB board; and makes the second connecting piece more tightly pressed against the mounting shell.

[0016] Preferably, the conductive spring sheet further includes an overlapping portion, which is located at the end of the second connecting portion away from the first connecting portion, and the overlapping portion overlaps with the mounting shell located at the relief groove.

[0017] By adopting the above technical solution, by setting an overlapping part, the PCB board is quickly positioned and installed by overlapping the mounting shell. The first connecting piece is pressed against the inner side wall of the mounting shell, so that the conductive spring is elastically installed in the mounting shell, which can effectively prevent the conductive spring from shifting or deflecting, so that the PCB board can be stably and accurately installed in the mounting shell.

[0018] Preferably, the mounting shell has an overlapping groove, which is connected to the relief groove, and the overlapping part overlaps the wall of the mounting shell located in the overlapping groove.

[0019] By adopting the above technical solution and setting the overlap groove, the overlap position of the overlap part is restricted, so that the overlap part can be more stably and accurately overlapped with the mounting shell.

[0020] Preferably, the mounting housing has a snap-fit ​​portion at the other end of the first connecting portion, and the PCB board snaps into the snap-fit ​​portion.

[0021] By adopting the above technical solution, and by setting a snap-fit ​​part, the end of the PCB board away from the first connecting part snaps into the snap-fit ​​part. During this process, the overlapping part overlaps with the mounting shell. Then, the other end of the PCB board is pressed into the mounting shell, and the first connecting piece is pressed against the inner side wall of the mounting shell. This allows the PCB board to be installed in the mounting shell. The operation is convenient and simple, and the installation of the PCB board is stable and reliable under the elastic action of the conductive spring.

[0022] Preferably, the second connecting portion is arranged in a "V" shaped plate, and the second connecting portion is located at the point of contact with the pin in an arc shape.

[0023] By adopting the above technical solution, the second connecting part is set in a "V" shape to ensure the structural strength of the second connecting part and to minimize the risk of damage from elastic bending, thereby improving the service life of the conductive spring. Furthermore, by setting the second connecting part to have an arc-shaped transition at the point where it abuts the pin, the contact area between the second connecting part and the pin is increased. Even if the conductive spring is displaced during use, the second connecting part can still stably abut the pin, thereby improving the stability of the conductive connection structure.

[0024] Secondly, this application provides a power adapter.

[0025] The power adapter provided in this application adopts the following technical solution: a power adapter, including the conductive connection structure described above.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Two conductive spring contacts are first mounted on the PCB board via the first connecting part, making the conductive spring contacts conductively connected to the PCB board. Then, the PCB board is mounted in the mounting housing. Two second connecting parts are respectively inserted into two clearance slots, and each second connecting part abuts against each pin, making the conductive spring contacts conductively connected to the pins, thereby realizing the conductive connection between the PCB board and each pin. The conductive spring contacts can be installed by mounting the PCB board to the mounting housing. Since the installation of the PCB board is not limited by the space inside the mounting housing, the installation of the PCB board is relatively simple, thus facilitating the installation of the conductive connection structure. 2. By setting a second connecting piece, when the PCB board is installed on the mounting shell, the second connecting piece forces the first connecting piece to press against the inner wall of the mounting shell, and the first connecting piece bends and deforms towards the second connecting piece, so that the first connecting part is more tightly snapped into the PCB board; and the second connecting piece presses against the inner bottom wall of the mounting shell, minimizing the displacement of the conductive spring piece, thereby improving the stability of the conductive connection structure installation. 3. By setting a snap-fit ​​part, the end of the PCB board away from the first connecting part snaps into the snap-fit ​​part. During this process, the overlapping part overlaps with the mounting shell. Then, the other end of the PCB board is pressed into the mounting shell, and the first connecting piece is pressed against the inner side wall of the mounting shell. This allows the PCB board to be installed in the mounting shell. The operation is convenient and simple, and the installation of the PCB board is stable and reliable under the elastic action of the conductive spring. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of the conductive connection structure in the embodiments of this application; Figure 2 This is an exploded view of the conductive connection structure in the embodiments of this application; Figure 3 This is a schematic diagram of the installation of the conductive spring and the PCB board in the embodiments of this application; Figure 4 This is a schematic diagram of the conductive spring in the embodiments of this application; Figure 5 This is a schematic diagram of the installation of the conductive spring and the mounting shell in the embodiments of this application; Figure 6 yes Figure 5 Enlarged schematic diagram of part A in the diagram.

[0028] Reference numerals: 1. Mounting shell; 11. Relief groove; 12. Overlap groove; 13. Snap-fit ​​part; 131. Groove; 132. Guide surface; 14. Placement part; 2. Pin; 3. Conductive spring; 31. First connecting part; 311. First connecting piece; 312. Snap-fit ​​piece; 313. Limiting groove; 314. Second connecting piece; 32. Second connecting part; 33. Overlap part; 4. PCB board; 41. Snap-fit ​​groove. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0030] This application discloses a conductive connection structure.

[0031] Reference Figure 1 and Figure 2 The conductive connection structure includes a mounting shell 1, two pins 2, two conductive springs 3, and a PCB board 4. The mounting shell 1 is a shell with an opening on the inner side (i.e., the upper side of the mounting shell 1 in the figure). The mounting shell 1 has two clearance slots 11 spaced apart along its width. The two pins 2 are fixedly connected to the outer side of the mounting shell 1, and each pin 2 is correspondingly set with each clearance slot 11.

[0032] The conductive spring 3 has a certain conductivity and elastic deformation capability. Two conductive springs 3 are provided corresponding to two recessed slots 11. Specifically, the conductive spring 3 includes a first connecting part 31 and a second connecting part 32, with the first connecting part 31 integrally connected to one end of the second connecting part 32. The first connecting part 31 is mounted and fixed on the PCB board 4, and the connection between the first connecting part 31 and the PCB board 4 is electrically connected to achieve a conductive connection between the conductive spring 3 and the PCB board 4. When the PCB board 4 is mounted and fixed in the mounting housing 1, the second connecting part 32 passes through the recessed slot 11 and abuts against the pin 2 to achieve a conductive connection between the conductive spring 3 and the pin 2.

[0033] In actual installation, the conductive contact spring 3 is first fixed to the PCB board 4 via the first connecting part 31 to achieve conductive connection between the two conductive contact springs 3 and the PCB board 4. Then, the PCB board 4 is fixed in the mounting shell 1, so that the second connecting parts 32 pass through the relief grooves 11 and abut against each pin 2, thereby achieving conductive connection between the two conductive contact springs 3 and the two pins 2. In this process, the conductive contact springs 3 can be installed by mounting the PCB board 4 to the mounting shell 1, which is convenient and simple to operate. Moreover, the installation of the PCB board 4 is no longer limited by the space size inside the mounting shell 1, thus facilitating the installation of the conductive connection structure.

[0034] Reference Figure 3In some embodiments, the first connecting portion 31 includes a first connecting piece 311 and a snap-fit ​​piece 312. The first connecting piece 311 is a right-angled piece, and the snap-fit ​​pieces 312 are two in number and rectangular in shape. The two snap-fit ​​pieces 312 are integrally connected to the two sides of the end of the first connecting piece 311 away from the second connecting portion 32, and the snap-fit ​​pieces 312 are perpendicular to the first connecting piece 311. Correspondingly, one end of the PCB board 4 has a snap-fit ​​groove 41 corresponding to the number of snap-fit ​​pieces 312. Each snap-fit ​​piece 312 snaps into the snap-fit ​​groove 41, and the PCB board 4 abuts against the inner sidewall of the first connecting piece 311. Under the elastic action of the first connecting portion 31, the first connecting portion 31 and the PCB board 4 are snapped and fixed, thereby facilitating the installation and removal of the conductive spring piece 3 and the PCB board 4. At the same time, the installation and fixing of the conductive spring piece 3 and the PCB board 4 are stable and reliable.

[0035] In some embodiments, limiting grooves 313 are formed on both sides of the snap-fit ​​piece 312 near the end of the first connecting piece 311, so that the PCB board 4 is confined in the limiting groove 313 at the snap-fit ​​groove 41, thereby preventing the first connecting part 31 from falling off the PCB board 4 and improving the stability of the snap-fit ​​installation between the first connecting part 31 and the PCB board 4. The limiting groove 313 is arc-shaped, and the end of the snap-fit ​​piece 312 away from the first connecting piece 311 is rounded to allow the snap-fit ​​piece 312 to move through the snap-fit ​​groove 41, thereby facilitating the snap-fit ​​fixation of the first connecting part 31 and the PCB board 4.

[0036] Reference Figure 2 and Figure 3 In some embodiments, the first connecting portion 31 further includes a second connecting piece 314. The second connecting piece 314 is elongated and strip-shaped. One end of the second connecting piece 314 is integrally connected to the end of the first connecting piece 311 away from the snap-fit ​​piece 312, and the other end is integrally connected to the second connecting portion 32, thereby achieving the connection between the first connecting portion 31 and the second connecting portion 32. Furthermore, under the pressure of the PCB board 4, both the second connecting piece 314 and the first connecting piece 311 are pressed against the mounting housing 1. Specifically, when the PCB board 4 is installed and fixed in the mounting housing 1, the second connecting piece 314 is pressed against the inner bottom wall of the mounting housing 1 to limit the displacement of the conductive spring piece 3, thereby improving the stability of the conductive connection structure installation. At the same time, the second connecting piece 314 forces the first connecting piece 311 to press against the inner wall of the mounting shell 1, so that the second connecting piece 314 bends and deforms elastically toward one side of the second connecting piece 314, and cooperates with the arc-shaped limiting groove 313, so that the first connecting part 31 is more tightly snapped into the PCB board 4, further improving the stability of the conductive connection structure installation.

[0037] Reference Figure 4In some embodiments, in its natural state, the angle between the second connecting piece 314 and the first connecting piece 311 (i.e., the angle between the inner sides of the second connecting piece 314 and the first connecting piece 311) is an obtuse angle. When the second connecting piece 314 forces the first connecting piece 311 against the inner wall of the mounting shell 1, the first connecting piece 311 bends and deforms towards the second connecting piece 314, allowing the first connecting piece 311 to bend and deform at a larger angle, further improving the snap-fit ​​stability between the first connecting part 31 and the PCB board 4. Furthermore, through elastic action, the second connecting piece 314 is more tightly pressed against the mounting shell 1, further improving the stability of the conductive connection structure installation. Preferably, the angle between the second connecting piece 314 and the first connecting piece 311 is between 105° and 115°.

[0038] In some embodiments, the second connecting portion 32 is arranged in a "V" shape, giving it a certain structural strength and preventing deformation when pressed against the pin 2. This ensures the reliability of the conductive connection between the second connecting portion 32 and the pin 2 and minimizes the risk of damage from elastic bending, thereby improving the service life of the conductive spring 3. The second connecting portion 32 has an arc-shaped transition at the point of contact with the pin 2 (i.e., the apex of the second connecting portion 32) to increase the contact area between the second connecting portion 32 and the pin 2. Even if the conductive spring 3 shifts during use, it can still stably press against the pin 2, thus improving the stability of the conductive connection structure.

[0039] Reference Figure 4 and Figure 5 In some embodiments, the conductive spring 3 further includes an overlapping portion 33, which is integrally connected to the end of the second connecting portion 32 away from the second connecting piece 314, and the overlapping portion 33 overlaps with the mounting housing 1 at the relief groove 11. During the installation and fixing of the PCB board 4, the overlapping portion 33 overlaps with the mounting housing 1, so that the second connecting portion 32 can pass through the relief groove 11, thereby facilitating the quick positioning and installation of the PCB board 4. Furthermore, since the first connecting piece 311 abuts against the inner sidewall of the mounting housing 1, the conductive spring 3 is elastically limited and installed in the mounting housing 1, which can effectively prevent the conductive spring 3 from shifting or deflecting, so that the PCB board 4 can be stably and accurately installed in the mounting housing 1.

[0040] Reference Figure 5In some embodiments, the inner bottom wall of the mounting shell 1 has two overlapping grooves 12, which are respectively connected to two relief grooves 11. The overlapping grooves 12 extend to both sides, making the width of the overlapping grooves 12 greater than the width of the relief grooves 11. Correspondingly, the overlapping portion 33 extends outward from the side away from the second connecting portion 32, and the overlapping portion 33 overlaps and is limited to the groove wall of the mounting shell 1 located in the overlapping groove 12, so as to limit the overlapping position of the overlapping portion 33, making the overlapping portion 33 more stable and accurate to overlap the mounting shell 1.

[0041] In some embodiments, a plurality of placement portions 14 are integrally connected to the inner sidewall of the mounting housing 1. The plurality of placement portions 14 are arranged at intervals along the circumference of the mounting housing 1. When the PCB board 4 is mounted and fixed to the mounting housing 1, the PCB board 4 is placed against each placement portion 14, thereby improving the stability of the PCB board 4 mounting.

[0042] Reference Figure 5 and Figure 6 In some embodiments, two snap-fit ​​portions 13 are integrally connected to the inner wall of the other end of the mounting shell 1, located at the first connecting portion 31. The two snap-fit ​​portions 13 are spaced apart along the width direction of the mounting shell 1, and the snap-fit ​​portions 13 are recessed to form grooves 131. The end of the PCB board 4 away from the snap-fit ​​groove 41 is snapped into each groove 131, thereby realizing the snap-fit ​​fixation of the PCB board 4 to the mounting shell 1. During the PCB installation process, one end of the PCB board 4 is first tilted and snapped into each groove 131, while the overlapping portion 33 overlaps with the mounting shell 1. Then, the other end of the PCB board 4 is pressed, so that the first connecting piece 311 abuts against the inner wall of the mounting shell 1. Under the elastic action of the conductive spring piece 3, the PCB board 4 is stably and reliably installed and fixed to the mounting shell 1, and the installation operation is convenient and simple. Among them, the snap-fit ​​portion 13 is provided with a guide surface 132, which is inclined to facilitate guiding the PCB board 4 into the groove 131.

[0043] The implementation principle of this embodiment is as follows: During actual installation, the conductive spring 3 is first fixed to the PCB board 4 via the first connecting part 31 to achieve conductive connection between the two conductive springs 3 and the PCB board 4. Then, the PCB board 4 is fixed in the mounting shell 1, so that the second connecting part 32 passes through the relief groove 11 and abuts against each pin 2, thereby achieving conductive connection between the two conductive springs 3 and the two pins 2. In this process, the conductive springs 3 can be installed by mounting the PCB board 4 to the mounting shell 1, which is convenient and simple to operate. Moreover, the installation of the PCB board 4 is no longer limited by the space size inside the mounting shell 1, thus facilitating the installation of the conductive connection structure.

[0044] This application also discloses a power adapter.

[0045] The power adapter includes the conductive connection structure described in the above embodiments.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A conductive connection structure, characterized in that: The device includes a mounting housing (1), two pins (2), two conductive springs (3), and a PCB board (4). The mounting housing (1) has two recessed slots (11), and the two pins (2) are located on the outer side of the mounting housing (1). Each conductive spring (3) includes a first connecting portion (31) and a second connecting portion (32). The first connecting portion (31) is located at one end of the second connecting portion (32), and the first connecting portion (31) is mounted on the PCB board (4). When the PCB board (4) is mounted on the mounting housing (1), the second connecting portion (32) passes through the recessed slots (11) and abuts against the pins (2). The first connecting portion (31) includes a first connecting piece (311) and a clip. The number of the snap-fit ​​pieces (312) is two and they are rectangular pieces. The two snap-fit ​​pieces (312) are integrally connected to the two sides of the end of the first connecting piece (311) away from the second connecting part (32). The snap-fit ​​pieces (312) are perpendicular to the first connecting piece (311). One end of the PCB board (4) is provided with snap-fit ​​slots (41) corresponding to the number of snap-fit ​​pieces (312). Each snap-fit ​​piece (312) is snapped into each snap-fit ​​slot (41). Limiting slots (313) are provided on both sides of the snap-fit ​​piece (312) near the end of the first connecting piece (311). The PCB board (4) is limited in the limiting slots (313) and the PCB board (4) is pressed against the first connecting piece (311).

2. The conductive connection structure according to claim 1, characterized in that: The first connecting part (31) further includes a second connecting piece (314), one end of which is connected to the first connecting piece (311) and the other end is connected to the second connecting part (32), and both the second connecting piece (314) and the first connecting piece (311) are pressed against the mounting shell (1).

3. The conductive connection structure according to claim 2, characterized in that: The angle between the second connecting piece (314) and the first connecting piece (311) is an obtuse angle.

4. The conductive connection structure according to claim 2, characterized in that: The conductive spring (3) also includes an overlapping portion (33), which is located at one end of the second connecting portion (32) away from the first connecting portion (31), and the overlapping portion (33) overlaps the mounting shell (1) at the relief groove (11).

5. The conductive connection structure according to claim 4, characterized in that: The mounting shell (1) has an overlap groove (12) which is connected to the clearance groove (11). The overlap part (33) overlaps the mounting shell (1) on the groove wall of the overlap groove (12).

6. The conductive connection structure according to claim 4, characterized in that: The mounting shell (1) has a snap-fit ​​part (13) at the other end of the first connecting part (31), and the PCB board (4) is snapped into the snap-fit ​​part (13).

7. The conductive connection structure according to claim 1, characterized in that: The second connecting part (32) is arranged in a "V" shape, and the second connecting part (32) is located at the abutment of the pin (2) in an arc shape.

8. A power adapter, characterized in that: Includes the conductive connection structure as described in any one of claims 1-7.

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