Power adapter convenient to replace

Abstract

The utility model relates to the technical field of adapters, in particular to a power adapter convenient to replace, which comprises a body and a connecting plug. A first conductive pin is arranged on the front surface of the connecting plug; a mounting convex ring is arranged on the back surface of the connecting plug; the rear end of the first conductive pin penetrates through the connecting plug; a mounting plate, a PCB (Printed Circuit Board) and second conductive pins are arranged in the body; a mounting groove is formed between the mounting plate and the mounting cavity; the mounting groove is used for being assembled with the mounting convex ring; the mounting convex ring is detachably connected with the mounting groove through a rotating part; the rear end of the second conductive pin is electrically connected with the PCB; the front end of the second conductive pin penetrates through the mounting plate; when the connecting plug and the mounting groove are assembled, the front end of the second conductive pin abuts against the rear end of the first conductive pin. A locking part for preventing the connecting plug from rotating reversely is arranged between the mounting groove and the mounting convex ring; the socket is simple in structure and stable in connection, and can adapt to sockets of different countries.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, in particular to a power adapter which is easy to replace. Background Art

[0002] An adapter converts AC power from the grid into DC power suitable for electronic devices. Most laptops, mobile phones, and tablets require 5V, 12V, or 19V DC power to charge. The adapter's internal converter and rectifier perform this conversion process and also adjust the output current according to the device's requirements.

[0003] However, due to the different plug standards in different countries, power adapters are not universally compatible worldwide, which not only brings inconvenience to users who frequently travel abroad, but also results in a waste of resources. Although existing adapters with replaceable plugs have solved this problem to a certain extent, the Chinese patent application number CN202221669735.X discloses a power adapter with replaceable plugs, but its structure is relatively complex and its size is also large, making it inconvenient to carry. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a power adapter that is easy to replace, has a simple structure, a stable connection, and can be adapted to sockets in different countries.

[0005] To achieve the above-mentioned objectives, the specific scheme of the present invention is as follows: a power adapter that is easy to replace, comprising a body and a plug connector; a first conductive foot is provided on the front side of the plug connector; a mounting protrusion is provided on the back side of the plug connector; a rear end of the first conductive foot passes through the plug connector; a mounting plate, a PCB board and a second conductive foot are provided in the body; the mounting plate divides the body into a circuit cavity and a mounting cavity; the PCB board is arranged in the circuit cavity; a mounting slot is formed between the mounting plate and the mounting cavity; the mounting slot is used to be assembled with the mounting protrusion; the rear end of the second conductive foot is electrically connected to the PCB board; the front end of the second conductive foot passes through the mounting plate; when the plug connector is assembled with the mounting slot, the front end of the second conductive foot abuts against the rear end of the first conductive foot; the mounting protrusion and the mounting slot are detachably connected by a rotating component; a locking component for preventing the plug connector from rotating in the opposite direction is provided between the mounting slot and the mounting protrusion.

[0006] The utility model is further configured such that the rotating component includes a first clamping groove and a first clamping block for assembling with the first clamping groove; the first clamping groove is provided on the outer side wall of the mounting protruding ring; the first clamping block is provided on the inner wall of the mounting groove; the first clamping groove includes a vertical portion and a horizontal portion connected to each other; the vertical portion and the horizontal portion form an inverted "L" shape;

[0007] The present invention is further configured as follows: the locking component includes a locking groove, a locking protrusion, a first elastic arm and a pressing block; the mounting plate is provided with a first through hole for accommodating the locking protrusion; the locking protrusion is connected to the first through hole through the first elastic arm; the pressing block is connected to the locking protrusion for controlling the locking protrusion to protrude out of the first through hole or be hidden in the first through hole; the locking groove is provided on the mounting protrusion ring at a position corresponding to the locking protrusion; the side wall of the mounting groove is provided with a clearance hole for accommodating the pressing block; the first through hole is connected to the clearance hole.

[0008] The utility model is further configured such that the second conductive foot includes a first metal sheet and a second metal sheet, both of which are electrically connected to the PCB board; the first metal sheet and the second metal sheet each include a hook portion, a connecting portion, an extension portion and a pin portion connected in sequence; the hook portion is used to be assembled with the PCB board; the pin portion passes through the mounting plate and extends into the mounting cavity; the pin portion is arranged perpendicular to the extension portion.

[0009] The present invention is further configured such that a mounting hole is provided on the extension portion; and the pin portion is snap-connected with the mounting hole.

[0010] The utility model is further configured such that an insulating baffle is provided on the mounting convex ring; and the insulating baffle is provided with an arc-shaped hole for allowing the front end of the second conductive foot to pass through.

[0011] The present invention is further configured such that the width of the extended portion of the first metal sheet gradually increases; and the extended portion of the second metal sheet is in an "n" shape.

[0012] The utility model is further configured as follows: a second through hole is provided on the mounting plate; a second elastic arm is provided in the second through hole; the second elastic arm includes a left arm portion, a right arm portion and a base portion connected to the second through hole; the left arm portion, the right arm portion and the base portion form a "Y"-shaped structure; the left arm portion is provided with a pin portion of the first metal sheet; the right arm portion is provided with a pin portion of the second metal sheet.

[0013] The present invention is further configured such that the shape of the connecting portion of the first metal sheet is consistent with the shape of the connecting portion of the second metal sheet; the connecting portion includes a horizontal block and a vertical block connected end to end; the horizontal block and the vertical block form an "L"-shaped structure.

[0014] The beneficial effects of the utility model are as follows: the plug connector and the body can be detachably connected by arranging the rotating component; and the plug connector and the body can be locked and firmly connected by arranging the locking component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without making any creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model after the main body and the plug connector are assembled;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 It is a structural diagram of the main body of the utility model;

[0019] Figure 4 It is a front view of the main body of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the plug connector of the present utility model;

[0021] Figure 6 Another embodiment of the plug connector of the present utility model;

[0022] Figure 7 This is a schematic structural diagram of the second conductive foot of the present invention;

[0023] Figure 8 It is an exploded view of the main body of the utility model.

[0024] Wherein: 1. body; 11. mounting plate; 12. PCB board; 13. circuit cavity; 14. mounting slot; 15. first clamping block; 2. plug connector; 21. mounting protruding ring; 22. first clamping slot; 221. vertical portion; 222. horizontal portion; 23. insulating baffle; 24. arc-shaped hole; 25. first conductive pin; 31. second through hole; 32. second elastic arm; 33. left arm portion; 34. right arm portion; 35. base portion; 61. locking groove; 62. locking protrusion; 63. pressing block; 64. first through hole; 65. first elastic arm; 66. clearance hole; 4. second conductive pin; 51. hook portion; 52. connecting portion; 53. extension portion; 54. pin portion; DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there can be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] like Figure 1-8 As shown, a power adapter that is easy to replace in this embodiment includes a body 1 and a plug connector 2; a first conductive foot 25 is provided on the front of the plug connector 2; a mounting protrusion 21 is provided on the back of the plug connector 2; the rear end of the first conductive foot 25 is arranged through the plug connector 2; a mounting plate 11, a PCB board 12 and a second conductive foot 4 are provided in the body 1; the mounting plate 11 divides the body 1 into a circuit cavity 13 and a mounting cavity; the PCB board 12 is provided in the circuit cavity 13; a mounting groove 14 is formed between the mounting plate 11 and the mounting cavity; the mounting groove 14 is used to assemble with the mounting protrusion 21; the rear end of the second conductive foot 4 is electrically connected to the PCB board 12 connection; the front end of the second conductive foot 4 passes through the mounting plate 11; when the plug connector 2 is assembled with the mounting groove 14, the front end of the second conductive foot 4 abuts against the rear end of the first conductive foot 25; the mounting protrusion 21 and the mounting groove 14 are detachably connected by a rotating component; the rotating component includes a first card slot 22 and a first card block 15 for assembling with the first card slot 22; the first card slot 22 is provided on the outer side wall of the mounting protrusion 21; the first card block 15 is provided on the inner wall of the mounting groove 14; the first card slot 22 includes a vertical portion 221 and a horizontal portion 222 connected to each other; the vertical portion 221 and the horizontal portion 222 form an inverted "L" shape.

[0027] The shape of the front portion of the first conductive pin 25 on different plug connectors 2 is determined based on the socket shape of different countries. By replacing different plug connectors 2, the shape of the first conductive pin 25 can be changed, allowing the plug to be plugged into different types of sockets in different countries, enabling use in different countries. The main body 1 also includes a power supply line for powering the electrical appliance, which is electrically connected to the PCB board 12.

[0028] Specifically, when the plug connector 2 needs to be installed on the body 1, the mounting collar 21 is first aligned with the mounting slot 14, so that the first clamping block 15 is aligned with the vertical portion 221 of the first clamping slot 22 and pushed in. When it reaches the bottom of the vertical portion 221, the mounting collar 21 is rotated so that the first clamping block 15 is pushed in along the horizontal portion 222. When the first clamping block 15 reaches the end of the horizontal portion 222, the assembly is complete. At this time, the rear end of the first conductive pin 25 on the plug connector 2 will abut the front end of the second conductive pin 4 on the body 1. Therefore, when the first conductive pin 25 of the plug connector 2 is energized, the AC power from the socket passes through the first conductive pin 25 and the second conductive pin 4 in sequence before reaching the PCB board 12. The PCB board 12 converts the AC power into the voltage and current required by the electrical appliance, and then the power supply line powers the electrical appliance.

[0029] By providing a rotating component, the direction of the plug connector 2 after installation can be limited compared to a threaded connection method, ensuring that the first conductive pin 25 and the second conductive pin 4 are in full contact, thereby stably supplying power to the power supply.

[0030] like Figure 1-8 As shown, a power adapter that is easy to replace in this embodiment, a locking component for preventing the plug connector (2) from rotating in the opposite direction is provided between the mounting groove (14) and the mounting protrusion ring (21); the locking component includes a locking groove 61, a locking protrusion 62, a first elastic arm 65 and a pressing block 63; a first through hole 64 for accommodating the locking protrusion 62 is provided on the mounting plate 11; the locking protrusion 62 is connected to the first through hole 64 through the first elastic arm 65; the pressing block 63 is connected to the locking protrusion 62, and is used to control the locking protrusion 62 to protrude out of the first through hole 64 or be hidden in the first through hole 64; the locking groove 61 is provided on the mounting protrusion ring 21 at a position corresponding to the locking protrusion 62; the side wall of the mounting groove 14 is provided with a clearance hole 66 for accommodating the pressing block 63; the first through hole 64 is connected to the clearance hole 66.

[0031] In order to prevent the plug connector 2 and the body 1 from rotating in the opposite direction due to various collisions during use, thereby causing displacement between the first conductive pin 25 and the second conductive pin 4 and resulting in poor contact, a locking component is provided.

[0032] Specifically, the locking groove 61 is provided on the bottom surface of the mounting protrusion 21. When the plug connector 2 is rotated and the first clamping block 15 is inserted along the vertical portion 221, the bottom surface of the mounting protrusion 21 presses the locking protrusion 62 downward into the first through hole 64, thereby facilitating the insertion of the mounting protrusion 21 into the mounting groove 14. When the first clamping block 15 reaches the end of the horizontal portion 222, the locking protrusion 62 is reset under the action of the first elastic arm 65 due to the presence of the locking groove 61 and is locked with the locking groove 61. At this time, the mounting protrusion 21 and the mounting groove 14 are fixed to each other and firmly connected. This can prevent the mounting protrusion 21 from accidentally falling off, resulting in poor contact and charging failure. When replacing the plug connector 2 with another model, first release the locking state of the locking component and rotate the mounting protrusion 21 in the opposite direction. Then, press the pressing block 63 downward. As the pressing block 63 is pressed downward, it drives the locking protrusion 62 connected to it to retract into the first through hole 64. When the locking protrusion 62 is completely recessed into the first through hole 64, the locking between the mounting protrusion 21 and the mounting groove 14 is no longer locked. Then, rotate the plug connector 2 in the opposite direction, so that the first locking block 15 is removed from the first locking groove 22, and the plug connector 2 can be removed from the body 1. After the plug connector 2 is removed, the locking protrusion 62 will naturally return to its original position under the action of the first elastic arm 65.

[0033] like Figure 7 As shown, in this embodiment, a power adapter that is easily replaceable, the second conductive foot 4 includes a first metal sheet and a second metal sheet, both electrically connected to the PCB board 12; the first metal sheet and the second metal sheet each include a hook portion 51, a connecting portion 52, an extension portion 53, and a pin portion 54 connected in sequence; the hook portion 51 is used to assemble with the PCB board 12; the pin portion 54 passes through the mounting plate 11 and extends into the mounting cavity; the pin portion 54 is arranged perpendicular to the extension portion 53. The utility model is further configured such that the shape of the connecting portion 52 of the first metal sheet is consistent with the shape of the connecting portion 52 of the second metal sheet; the connecting portion 52 includes a horizontal block and a vertical block connected end to end; the horizontal block and the vertical block form an "L"-shaped structure.

[0034] Specifically, the first and second metal sheets are used to connect to the live and neutral wires, respectively; the hook portion 51 forms the rear end of the second conductive pin 4; and the pin portion 54 forms the front end of the second conductive pin 4. By providing the connecting portion 52 and the extending portion 53, the lengths of the first and second metal sheets can be extended, increasing the elasticity of the second conductive pin 4 and ensuring a more secure contact between the second conductive pin and the first conductive pin. Furthermore, due to the limited space within the main body 1, an L-shaped connecting portion 52 is provided to optimize the space utilization of the product. This extends the lengths of the first and second metal sheets while not occupying the lateral space of the main body 1, making the overall volume of the main body 1 more compact. Furthermore, because the position of the first conductive pin 25 is relatively fixed, if the connecting portion 52 and the extending portion 53 were not provided, the pin portion 54 would be directly plugged into the PCB board 12. Therefore, when designing the circuit of the PCB board 12, a space would need to be reserved for the pin portion 54 corresponding to the position of the first conductive pin 25, resulting in a complex and cumbersome design. After the connection portion 52 and the extension portion 53 are provided, in fact, during the design process of the PCB board 12 , it is only necessary to reserve an interface on one side of the PCB board 12 , and the connection using the first metal sheet and the second metal sheet is simple and effective.

[0035] like Figure 7 As shown in the embodiment of the easily replaceable power adapter, the extension portion 53 is provided with a mounting hole (not shown); the pin portion 54 is engaged with the mounting hole. Compared with an integrated design, the above arrangement can reduce production costs.

[0036] like Figure 5 As shown in the figure, in this embodiment of a replaceable power adapter, an insulating baffle 23 is provided on the mounting protrusion 21. The insulating baffle 23 has an arc-shaped hole 24 for the front end of the second conductive pin 4 to pass through. The insulating baffle 23 protects the rear end of the first conductive pin 25 while not blocking the insertion of the second conductive pin 4.

[0037] like Figure 7 As shown in the figure, in this embodiment of a replaceable power adapter, the width of the extension portion 53 of the first metal sheet gradually increases; the extension portion 53 of the second metal sheet is shaped like an "N". This arrangement increases the elasticity of the second conductive pin 4, ensuring good contact between the first conductive pin 25 and the second conductive pin 4, and making the connection more secure.

[0038] like Figure 1-4As shown, the present embodiment is a power adapter that is easy to replace, wherein a second through hole 31 is provided on the mounting plate 11; a second elastic arm 32 is provided in the second through hole 31; the second elastic arm 32 includes a left arm portion 33, a right arm portion 34 and a base portion 35 connected to the second through hole 31; the left arm portion 33, the right arm portion 34 and the base portion 35 form a "Y"-shaped structure; the left arm portion 33 is provided with a pin portion 54 of the first metal sheet; the right arm portion 34 is provided with a pin portion 54 of the second metal sheet.

[0039] Without the second through-hole 31 and the second elastic arm 32, the first conductive pin 25 and the second conductive pin 4 are in rigid contact, requiring high precision in the production of the first and second conductive pins. They must be neither too short, resulting in poor contact between the first and second conductive pins, nor too long, resulting in friction between the first and second conductive pins and preventing the plug connector 2 from being installed on the body 1. However, by providing the second through-hole 31 and the second elastic arm 32, when the plug connector 2 is installed on the body 1, the rear end of the first conductive pin contacts the front end of the second conductive pin 4, causing the second elastic arm 32 to slightly deform, making way for the first conductive pin, allowing the plug connector 2 to be properly installed on the body 1 while maintaining secure contact between the two.

[0040] The above is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of protection of the present invention patent application.

Claims

1. A power adapter that is easy to replace, characterized by: It comprises a body (1) and a plug connector (2); The front face of the plug connector (2) is provided with a first conductive foot (25); the back face of the plug connector (2) is provided with a mounting convex ring (21); the rear end of the first conductive foot (25) is arranged to pass through the plug connector (2); The body (1) is provided with a mounting plate (11), a PCB board (12) and a second conductive foot (4); the mounting plate (11) divides the body (1) into a circuit cavity (13) and a mounting cavity; the PCB board (12) is arranged in the circuit cavity (13); a mounting groove (14) is formed between the mounting plate (11) and the mounting cavity; the mounting groove (14) is used for assembling with the mounting protruding ring (21); The rear end of the second conductive foot (4) is electrically connected to the PCB board (12); the front end of the second conductive foot (4) is arranged to pass through the mounting plate (11); when the plug connector (2) is assembled with the mounting slot (14), the front end of the second conductive foot (4) abuts against the rear end of the first conductive foot (25); The mounting convex ring (21) and the mounting groove (14) are detachably connected via a rotating component; a locking component for preventing the plug connector (2) from rotating in the opposite direction is provided between the mounting groove (14) and the mounting convex ring (21).

2. The easily replaceable power adapter according to claim 1, characterized in that: The rotating component includes a first clamping groove (22) and a first clamping block (15) for assembling with the first clamping groove (22); the first clamping groove (22) is provided on the outer side wall of the mounting protruding ring (21); the first clamping block (15) is provided on the inner wall of the mounting groove (14); the first clamping groove (22) includes a vertical portion (221) and a horizontal portion (222) connected to each other; the vertical portion (221) and the horizontal portion (222) form an inverted "L" shape; 3. The easily replaceable power adapter according to claim 1, characterized in that: The locking component comprises a locking groove (61), a locking protrusion (62), a first elastic arm (65) and a pressing block (63); The mounting plate (11) is provided with a first through hole (64) for accommodating the locking protrusion (62); the locking protrusion (62) is connected to the first through hole (64) via a first elastic arm (65); the pressing block (63) is connected to the locking protrusion (62) and is used to control the locking protrusion (62) to protrude out of the first through hole (64) or be hidden in the first through hole (64); the locking groove (61) is provided on the mounting protruding ring (21) at a position corresponding to the locking protrusion (62); A side wall of the installation groove (14) is provided with a clearance hole (66) for accommodating the pressing block (63); the first through hole (64) is connected to the clearance hole (66).

4. The easily replaceable power adapter according to claim 1, characterized in that: The second conductive foot (4) comprises a first metal sheet and a second metal sheet, both of which are electrically connected to the PCB board (12); The first metal sheet and the second metal sheet both comprise a hook portion (51), a connecting portion (52), an extension portion (53), and a pin portion (54) connected in sequence; the hook portion (51) is used for assembling with the PCB board (12); the pin portion (54) passes through the mounting plate (11) and extends into the mounting cavity; the pin portion (54) and the extension portion (53) are arranged perpendicularly.

5. The easily replaceable power adapter according to claim 4, characterized in that: The extension portion (53) is provided with a mounting hole; the pin portion (54) is engaged with the mounting hole.

6. The easily replaceable power adapter according to claim 1, characterized in that: An insulating baffle (23) is provided on the mounting convex ring (21); the insulating baffle (23) is provided with an arc-shaped hole (24) for the front end of the second conductive foot (4) to pass through.

7. The easily replaceable power adapter according to claim 4, characterized in that: The width of the extension portion (53) of the first metal sheet gradually increases; and the extension portion (53) of the second metal sheet is in the shape of an "n".

8. The easily replaceable power adapter according to claim 4, characterized in that: The mounting plate (11) is provided with a second through hole (31); a second elastic arm (32) is provided in the second through hole (31); the second elastic arm (32) includes a left arm portion (33), a right arm portion (34) and a base portion (35) connected to the second through hole (31); the left arm portion (33), the right arm portion (34) and the base portion (35) form a "Y"-shaped structure; the left arm portion (33) is provided with a pin portion (54) of the first metal sheet; and the right arm portion (34) is provided with a pin portion (54) of the second metal sheet.

9. The easily replaceable power adapter according to claim 4, characterized in that: The shape of the connecting portion (52) of the first metal sheet is consistent with the shape of the connecting portion (52) of the second metal sheet; the connecting portion (52) comprises a horizontal block and a vertical block connected end to end; the horizontal block and the vertical block form an "L"-shaped structure.

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