CN219106631U

CN219106631U - Power adapter

Info

Publication number: CN219106631U
Application number: CN202223607059.6U
Authority: CN
Inventors: 马克俊
Original assignee: Shenzhen Hehuiyuan Electronic Technology Co ltd
Current assignee: Shenzhen Hehuiyuan Electronic Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-30
Anticipated expiration: 2032-12-30

Abstract

The application discloses power adapter, including the adapter body, the plug, the cooperation subassembly, electrically conductive structure and locking structure, the adapter body includes main part and assembly portion, the main part includes the input, output and connecting wire, the plug includes first casing, second casing and pin, the cooperation subassembly includes first cooperation structure and second cooperation structure, first cooperation structure is rotatory buckle with the second cooperation structure is connected, so that the plug can be dismantled and be connected in the adapter body, locking structure is used for restricting the relative rotation between first cooperation structure and the second cooperation structure when locking state, and make first cooperation structure and second cooperation structure can relative rotation when unlocking state. The detachable connection between the plug and the adapter body is realized, the disassembly and the assembly of the plug are convenient, different types of plugs can be replaced according to standards of different countries or regions, and the detachable plug can be carried by only carrying one adapter body and different plugs which are needed to be used, so that the use cost is reduced.

Description

Power adapter

Technical Field

The application relates to the technical field of charging equipment, in particular to a power adapter.

Background

The power adapter is a power supply power conversion device of a small portable electronic device and an electronic appliance. Because the standards of the plug and the socket are different in all countries in the world, various plug and socket appear, so that the power adapter product matched with the plug cannot be used in all countries, inconvenience is brought to users who frequently go around the world, and a waste of resources is also caused.

Disclosure of Invention

In view of this, the present application proposes a power adapter.

The application proposes a power adapter comprising:

the adapter comprises an adapter body and an assembling part, wherein the adapter body comprises an input end, an output end and a connecting wire connected with the output end and the output end, and the assembling part is arranged on the main body;

the plug comprises a first shell, a second shell and pins, wherein the first shell is provided with a first side and a second side opposite to the first side, the pins are arranged on the first side, the second shell is arranged on the second side, and the second shell covers the assembly part;

the first matching structure is arranged on the assembling part, the second matching structure is arranged on the second shell, and the first matching structure is rotationally and buckled with the second matching structure so that the plug can be detachably connected with the adapter body;

the conductive structure comprises a first conductive part and a second conductive part, the first conductive part is communicated with the input end and extends to the assembly part, the second conductive part is communicated with the pin and extends to the second shell, and the first conductive part is used for being in contact with and communicated with the first conductive part;

the locking structure is arranged on one of the assembly part and the second shell and is provided with a locking state and an unlocking state, and the locking structure is used for limiting relative rotation between the first matching structure and the second matching structure in the locking state and enabling the first matching structure and the second matching structure to be capable of rotating relatively in the unlocking state.

Further, the distance between the first conductive part and the center of the assembling part is smaller than the distance between the first matching structure and the center of the assembling part.

Further, the assembly part is also provided with a concave positioning groove, and the first conductive part is arranged in the positioning groove; the second shell is provided with a first positioning ring at a position corresponding to the positioning groove, and the first positioning ring is used for abutting against the outer wall of the first conductive part when the plug is connected to the adapter body.

Further, the second housing is further provided with a second positioning ring, the second positioning ring is located on one side, close to the center of the second housing, of the first positioning ring, the second conductive portion is located between the first positioning ring and the second positioning ring, and the second positioning ring is used for abutting against the outer wall of the first conductive portion when the plug is connected to the adapter body, and enabling the first conductive portion to be clamped between the first positioning ring and the second positioning ring.

Further, the locking structure comprises a mounting part and a clamping part connected with the mounting part, the mounting part is movably mounted on the main body, and the second shell is provided with a locking groove matched with the clamping part; the installation part is used for moving along a first direction so as to drive the clamping part to move along the first direction to clamp in or separate from the locking groove, the first direction is intersected with the rotation direction of the first matching structure and the second matching structure, the locking structure is in the locking state when the clamping part clamps in the locking groove, and the locking structure is in the unlocking state when the clamping part is separated from the locking groove.

Further, the locking structure further comprises an elastic portion, the mounting portion is connected to one end of the elastic portion, the other end of the elastic portion abuts against the baffle inside the main body, so that the elastic portion extends along the first direction, the mounting portion can drive the clamping portion to automatically clamp into the locking groove under the action of elasticity of the elastic portion, and the elastic portion is compressed under the pressing operation of a user and drives the clamping portion to be separated from the locking groove.

Further, the assembly part is provided with an assembly surface facing the second shell, the first matching structure comprises a fixing part extending along a second direction and an extending part connected with the fixing part, the extending part is bent, and the second direction is a direction perpendicular to the assembly surface;

the second matching structure comprises a limiting groove arranged on the second shell, the limiting groove comprises an inserting groove and a clamping groove which are communicated with each other, the inserting groove is used for enabling the extending part to enter the limiting groove, and the clamping groove is used for being matched with the extending part after the first matching structure and the second matching structure relatively rotate by a preset angle so as to limit movement of the first matching structure in the second direction.

Further, a central angle between the central position of the insertion groove and the central position of the clamping groove is 90 degrees, and the first matching structure and the second matching structure rotate by 90 degrees so that the extension part is clamped in the clamping groove.

Further, a notch is formed in the middle of the first matching structure, so that the clamping part can extend out of the notch, the notch is provided with a second position corresponding to the bending position of the extension part and a first position corresponding to the fixing part, and the mounting part can drive the clamping part to move between the first position and the second position;

the locking groove is communicated with the clamping groove, the clamping part is used for being clamped into the locking groove when in a first position so as to limit rotation between the first matching structure and the second matching structure, and the clamping part is used for being separated from the locking groove when in a second position so that the first matching structure and the second matching structure can rotate relatively.

Further, the covering direction of the second housing and the assembling portion is perpendicular to the extending direction of the connecting line.

The utility model provides a power adapter, through the rotatory snap fit between first cooperation structure and the second cooperation structure in order to realize dismantling between plug and the adapter body and be connected, make things convenient for the dismouting of plug, can change different kinds of plugs according to the standard in different countries or regions, only need take an adapter body and need use different plugs can when carrying, reduce use cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic view of a first view angle structure of a power adapter according to an embodiment of the present application.

Fig. 2 is a schematic view of a second view angle structure of the power adapter according to the embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of a power adapter according to an embodiment of the present application.

Fig. 4 is a schematic structural view of an adapter body according to an embodiment of the present application.

Fig. 5 is a schematic structural view of the locking structure according to the embodiment of the present application mounted on the main body.

Fig. 6 is a schematic structural view of an assembly part according to an embodiment of the present application.

Fig. 7 is a schematic structural view of a second housing according to an embodiment of the present application.

In the figure: 100. a power adapter; 10. an adapter body; 11. a main body; 111. an input end; 112. an output end; 113. a connecting wire; 114. assembling the position; 115. a baffle; 116. a mounting position; 117. a guide rail; 12. an assembling portion; 121. a positioning groove; 122. a mounting surface; 123. a fixing hole; 20. a plug; 21. a first housing; 211. a first side; 212. a second side; 22. a second housing; 221. a first positioning ring; 222. a second positioning ring; 223. a locking groove; 23. pins; 30. a mating assembly; 31. a first mating structure; 311. a fixing part; 312. an extension; 3121. an inclined plane structure; 313. a notch; 314. a first position; 315. a second position; 32. a second mating structure; 321. a limit groove; 3211. an insertion groove; 3212. a clamping groove; 3213. a limiting block; 40. a conductive structure; 41. a first conductive portion; 411. a conductive post; 42. a second conductive portion; 421. a conductive contact; 50. a locking structure; 51. a mounting part; 52. and a clamping part.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It is also to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1-7, an embodiment of the present utility model provides a power adapter 100, including an adapter body 10, a plug 20, a mating assembly 30, a conductive structure 40 and a locking structure 50, where the adapter body 10 includes a main body 11 and a fitting portion 12, the main body 11 includes an input end 111, an output end 112 and a connection line 113 connected to the input end 111 and the output end 112, the fitting portion 12 is mounted on the main body 11, the plug 20 includes a first housing 21, a second housing 22 and a pin 23, the first housing 21 has a first side 211 and a second side 212 opposite to the first side 211, the pin 23 is mounted on the first side 211, the second housing 22 is mounted on the second side 212, the second housing 22 covers the fitting portion 12, the mating assembly 30 includes a first mating structure 31 and a second mating structure 32, the first mating structure 31 is disposed on the fitting portion 12, the second mating structure 32 is disposed on the second housing 22, the first mating structure 31 is rotatably and snap-fitted to the second mating structure 32 so that the plug 20 is detachably connected to the adapter body 10, the conductive structure 40 includes a first conductive portion 41 and a second conductive portion 42, the first conductive portion 41 is electrically connected to the first conductive portion 41 and the second conductive portion 42 is electrically conductive portion 41 and extends to the first conductive portion and is electrically conductive portion 41 and is electrically conductive to the second conductive portion 41.

The locking structure 50 is disposed on one of the assembly portion 12 and the second housing 22, the locking structure 50 has a locked state and an unlocked state, and the locking structure 50 is configured to limit relative rotation between the first mating structure 31 and the second mating structure 32 in the locked state, and enable relative rotation between the first mating structure 31 and the second mating structure 32 in the unlocked state.

According to the power adapter 100 provided by the embodiment of the utility model, the detachable connection between the plug 20 and the adapter body 10 is realized through the rotary snap fit between the first matching structure 31 and the second matching structure 32, so that the plug 20 is convenient to disassemble and assemble, different types of plugs 20 can be replaced according to different national or regional standards, and when the power adapter is carried, only one adapter body 10 and different plugs 20 which are needed, so that the use cost is reduced.

When in use, a user can operate the locking structure 50 to be in an unlocking state, then rotate the first matching structure 31 and the second matching structure 32 relatively through the knob plug 20, so that the plug 20 is installed on the adapter body 10, the first conductive part 41 and the second conductive part 42 are in conductive contact after the plug is installed in place, and then operate the locking structure 50 to be in a locking state, so that the connection between the plug 20 and the adapter body 10 is stable. When another kind of plug 20 needs to be replaced, the user can operate the locking structure 50 to be in the unlocking state and then turn the knob plug 20 reversely, so that the first matching structure 31 is separated from the second matching structure 32, and the plug 20 is convenient to detach and replace, the operation is simple and convenient, and the user can conveniently and quickly replace the plug 20.

In some usage scenarios, the main body 11 is of a cuboid structure and extends along a horizontal direction, a circular assembly position 114 is arranged at the top of the main body 11, the assembly part 12 is installed at the assembly position 114, and the second housing 22 covers the assembly part 12 from top to bottom and rotates horizontally, so that the first matching structure 31 and the second matching structure 32 are in rotary snap connection.

In some embodiments, the first conductive portion 41 is less than the first mating structure 31 from the center of the mounting portion 12. In this embodiment, the first conductive portion 41 is disposed closer to the center of the fitting portion 12, so that the first conductive portion 41 and the second conductive portion 42 can avoid the mating assembly 30 when in conductive contact, so that the mating assembly 30 and the conductive assembly will not interfere.

In some embodiments, the assembly portion 12 is further provided with a concave positioning groove 121, and the first conductive portion 41 is disposed in the circular positioning groove 121. The two first fitting structures 31 are provided at the periphery of the circular positioning groove 121 and at the edge of the fitting portion 12.

In some embodiments, the second housing 22 is provided with a circular first positioning ring 221 at a position corresponding to the positioning groove 121, and the first positioning ring 221 is used for abutting against the outer wall of the first conductive portion 41 when the plug 20 is connected to the adapter body 10, so as to be inserted into the circular positioning groove 121 to perform a positioning function, and facilitate contact between the first conductive portion 41 and the second conductive portion 42.

In some embodiments, the second housing 22 is further provided with a circular second positioning ring 222, the second positioning ring 222 is located on one side of the first positioning ring 221 near the center of the second housing 22, the second conductive portion 42 is disposed between the first positioning ring 221 and the second positioning ring 222, and the second positioning ring 222 is used to abut against the outer wall of the first conductive portion 41 when the plug 20 is connected to the adapter body 10, and enable the first conductive portion 41 to be clamped between the first positioning ring 221 and the second positioning ring 222, so as to perform a positioning function, and facilitate contact between the first conductive portion 41 and the second conductive portion 42.

In some embodiments, the first conductive part 41 includes two conductive posts 411 extending in the second direction, and the conductive posts 411 are in contact with the input end 111 of the main body 11 through conductive elastic sheets, so that the conductive posts 411 can elastically stretch and retract in the second direction. The second conductive portion 42 is two conductive contacts 421 corresponding to the two conductive posts 411, and the two conductive contacts 421 are in contact with the pins 23 through conductive elastic pieces.

In some embodiments, the locking structure 50 includes a mounting portion 51 and a clamping portion 52 connected to the mounting portion 51, the mounting portion 51 is movably mounted to the main body 11, and the second housing 22 is provided with a locking groove 223 matched with the clamping portion 52; the mounting portion 51 is configured to move along a first direction, so as to drive the clamping portion 52 to move along the first direction to be clamped into or separated from the locking groove 223, the first direction intersects with the rotation directions of the first mating structure 31 and the second mating structure 32, the locking structure 50 is in a locked state when the clamping portion 52 is clamped into the locking groove 223, and the locking structure 50 is in an unlocked state when the clamping portion 52 is separated from the locking groove 223. In this embodiment, the first direction is the length direction of the main body 11, and the connecting line 113 extends along the first direction, so that the installation of the locking structure 50 is inconvenient due to the small size of the plug 20, and therefore the installation portion 51 is installed on the main body 11 and the installation portion 51 can move along the length direction of the main body 11, so that the assembly and the use of the locking structure 50 are facilitated. Through the setting of the installation department 51 to drive the joint portion 52 to move to card in or break away from the locking groove 223 along the first direction, thereby restrict the relative rotation between first cooperation structure 31 and the second cooperation structure 32, simple structure, easy and simple to handle.

In some embodiments, the locking structure 50 further includes an elastic portion, where the mounting portion 51 is connected to one end of the elastic portion, and the other end of the elastic portion abuts against the baffle 115 inside the main body 11, so that the elastic portion extends along a first direction, so that the mounting portion 51 can drive the clamping portion 52 to automatically clamp into the locking groove 223 under the action of the elastic force of the elastic portion, and compress the elastic portion and drive the clamping portion 52 to separate from the locking groove 223 under the pressing operation of a user. In this embodiment, the setting of the elastic portion can facilitate automatic resetting of the locking structure 50, and is convenient for operating the locking structure 50 to switch between the locked state and the unlocked state.

The elastic portion is a spring, the spring extends along a first direction, that is, a length direction of the main body 11, one end of the length direction of the main body 11 is provided with a mounting position 116 for mounting the locking structure 50, the other end of the length direction of the main body 11 is connected with a connecting line 113, two sides of the width direction of the mounting position 116 are provided with guide rails 117, two sides of the width direction of the mounting portion 51 are slidably connected to the guide rails 117, and the mounting portion 51 is guided to slide along the first direction through the guide rails 117 so as to drive the clamping portion 52 to move.

In some embodiments, the fitting portion 12 has a fitting surface 122 facing the second housing 22, and the first fitting structure 31 includes a fixing portion 311 extending upward along a second direction and an extending portion 312 connected to the fixing portion 311, where the extending portion 312 is bent, and the second direction is a direction perpendicular to the fitting surface 122; the second mating structure 32 includes a limiting groove 321 disposed on the second housing 22, where the limiting groove 321 includes an insertion groove 3211 and a locking groove 3212 that are mutually communicated, the insertion groove 3211 is used for the extension portion 312 to enter the limiting groove 321, and the locking groove 3212 is used for being engaged with the extension portion 312 after the first mating structure 31 and the second mating structure 32 relatively rotate by a preset angle, so as to limit the movement of the first mating structure 31 in the second direction. In this embodiment, the second direction is the height direction of the main body 11 and is perpendicular to the first direction, the first mating structure 31 enters the limiting groove 321 through the insertion groove 3211, and the extending portion 312 enters the engaging groove 3212 through the relative rotation between the plug 20 and the main body 11, at this time, the first mating structure 31 and the second mating structure 32 can only rotate relatively and cannot move up and down, and the user can limit the rotation between the first mating structure 31 and the second mating structure 32 by operating the locking structure 50, so as to secure the connection between the plug 20 and the main body 11.

Illustratively, the extension portion 312 is disposed perpendicular to the fixing portion 311, such that the extension portion 312 is clamped in the clamping groove 3212 to stabilize the connection between the plug 20 and the main body 11.

Illustratively, a top portion of an end of the extension portion 312 opposite to the fixing portion 311 has a slope structure 3121 inclined downward toward a direction away from the fixing portion 311 to reduce friction, and prevent the rotation from being affected by friction between a corner angle of the extension portion 312 and an inner wall of the limiting groove 321.

Illustratively, the mounting portion 12 is further provided with a plurality of fixing holes 123 disposed at intervals around the central position of the mounting portion 12, and the fixing holes 123 are used for fixing the mounting portion 12 to the main body 11 by screws to facilitate the mounting of the mounting portion 12.

In some embodiments, the engagement groove 3212 is provided with a stopper 3213, and the stopper 3213 is configured to abut against the extension portion 312 when the extension portion 312 rotates to the engagement groove 3212, and block a side of the extension portion 312 facing the assembly surface 122. In this embodiment, the setting of the limiting block 3213 can limit the movement of the extending portion 312 in the second direction when the extending portion 312 rotates to the engaging groove 3212, that is, the extending portion 312 is prevented from being separated from the limiting groove 321, so that the extending portion 312 can only rotate back to the inserting groove 3211 in the opposite direction to be separated from the limiting groove 321, thereby facilitating the rotation and buckling connection between the first matching structure 31 and the second matching structure 32.

In some embodiments, the central angle between the central position of the insertion slot 3211 and the central position of the engagement slot 3212 is 90 °, and the first engagement structure 31 and the second engagement structure 32 are rotated by 90 ° to engage the extension 312 with the engagement slot 3212. In this embodiment, since the assembling bit 114 is located at one end of the main body 11 in the height direction, the output end 112 is located at one end of the main body 11 in the length direction, that is, the covering direction of the second housing 22 and the assembling portion 12 is perpendicular to the length direction of the main body 11, the first matching structure 31 and the second matching structure 32 are rotated by 90 ° to make the extending portion 312 engaged with the engaging groove 3212, which is more convenient for the user to operate, accords with the operation habit of the user, and improves the assembling hand feel of the user.

In some embodiments, the number of first mating structures 31 is plural, the extension portions 312 of the plurality of first mating structures 31 are spaced around the center of the mounting portion 12, the number of second mating structures 32 is plural, and the plurality of second mating structures 32 are spaced around the center of the second housing 22; the initial position of the extension portion 312 of each first mating structure 31 corresponds to one insertion slot 3211, and after each first mating structure 31 rotates a preset angle relative to the second mating structure 32, the extension portion 312 of each first mating structure 31 is correspondingly engaged with one engagement slot 3212. In the present embodiment, the connection between the plug 20 and the main body 11 can be made more stable by the arrangement of the plurality of first fitting structures 31 and the second fitting structures 32.

In some embodiments, a notch 313 is provided in the middle of one of the first mating structures 31 to enable the clamping portion 52 to extend to the notch 313, the notch 313 has a first position 314 corresponding to a bending position of the extension portion 312 and a second position 315 corresponding to a fixing portion 311, and the mounting portion 51 can drive the clamping portion 52 to move between the first position 314 and the second position 315; the locking groove 223 is communicated with at least one clamping groove 3212, the clamping part 52 is used for being clamped into the locking groove 223 when in the first position 314 so as to limit the rotation between the first matching structure 31 and the second matching structure 32, and the clamping part 52 is used for being separated from the locking groove 223 when in the second position 315 so as to enable the first matching structure 31 and the second matching structure 32 to rotate relatively. In this embodiment, by the above arrangement, the user can press the mounting portion 51 in the first direction, so that the mounting portion 51 drives the clamping portion 52 to move from the first position 314 to the second position 315, so that the clamping portion 52 is disengaged from the locking groove 223 to achieve the unlocked state, and when the user releases the mounting portion 51, the mounting portion 51 returns to the first position 314 through the elasticity of the elastic portion to achieve the locked state.

The number of the first mating structures 31 is two, the two first mating structures 31 are symmetrically arranged on the assembly portion 12, the center positions of the two first mating structures 31 are arranged along the first direction, and the center position of one of the first mating structures 31 is provided with a notch 313.

When the plug 20 is detached, a user can press the mounting portion 51 along a first direction, so that the mounting portion 51 compresses the spring to drive the clamping portion 52 to move from the first position 314 to the second position 315, so that the clamping portion 52 enters the limiting groove 321 from the locking groove 223, at this time, the first matching structure 31 and the second matching structure 32 can relatively rotate, so that the extending portion 312 rotates to the inserting groove 3211, and the plug 20 is detached to release the mounting portion 51, and then the elastic force of the spring drives the clamping portion 52 to reset to the second position 315.

When the plug 20 is installed, a user can press the installation part 51 along a first direction, so that the installation part 51 compresses the spring to move from the first position 314 to the second position 315, the clamping part 52 can enter the limiting groove 321 together with the first clamping block structure from the insertion groove 3211, when the first matching structure 31 and the second matching structure 32 rotate in place, the installation part 51 is loosened, and the clamping part 52 is driven to return to the first position 314 by the elastic force of the spring to extend into the locking groove 223, so that rotation between the first matching structure 31 and the second matching structure 32 is limited, and locking is achieved.

In some embodiments, the direction in which the second housing 22 and the fitting portion 12 are covered is perpendicular to the extending direction of the connecting line 113. In this embodiment, the covering direction of the second housing 22 and the assembling portion 12 is identical to the second direction, so that the connection wire 113 and the output end 112 can be conveniently connected with the electric device after the plug 20 is installed and the adapter body 10 with the plug 20 is inserted into the socket.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A power adapter, comprising:

the adapter comprises an adapter body and an assembling part, wherein the adapter body comprises an input end, an output end and a connecting wire connected with the input end and the output end, and the assembling part is arranged on the main body;

2. The power adapter of claim 1 wherein the first conductive portion is a distance from the center of the mounting portion that is less than the distance from the first mating structure to the center of the mounting portion.

3. The power adapter of claim 2 wherein said mounting portion further defines a recessed detent, said first conductive portion being disposed within said detent;

the second shell is provided with a first positioning ring at a position corresponding to the positioning groove, and the first positioning ring is used for abutting against the outer wall of the first conductive part when the plug is connected to the adapter body.

4. The power adapter of claim 3 wherein the second housing further comprises a second retaining ring, the second retaining ring being positioned on a side of the first retaining ring adjacent the center of the second housing, the second conductive portion being positioned between the first retaining ring and the second retaining ring, the second retaining ring being configured to abut against an outer wall of the first conductive portion when the plug is connected to the adapter body and to sandwich the first conductive portion between the first retaining ring and the second retaining ring.

5. The power adapter of claim 1 wherein the locking structure comprises a mounting portion and a clamping portion connected to the mounting portion, the mounting portion being movably mounted to the main body, the second housing being provided with a locking groove that mates with the clamping portion;

the installation part is used for moving along a first direction so as to drive the clamping part to move along the first direction to clamp in or separate from the locking groove, the first direction is intersected with the rotation direction of the first matching structure and the second matching structure, the locking structure is in the locking state when the clamping part clamps in the locking groove, and the locking structure is in the unlocking state when the clamping part is separated from the locking groove.

6. The power adapter according to claim 5, wherein the locking structure further comprises an elastic portion, the mounting portion is connected to one end of the elastic portion, and the other end of the elastic portion abuts against the baffle inside the main body, so that the elastic portion extends along the first direction, the mounting portion can drive the clamping portion to automatically clamp into the locking groove under the action of elastic force of the elastic portion, and the elastic portion is compressed and driven to be separated from the locking groove under the pressing operation of a user.

7. The power adapter of claim 5, wherein the fitting portion has a fitting surface facing the second housing, the first fitting structure includes a fixing portion extending in a second direction, and an extending portion connected to the fixing portion, the extending portion being provided to be bent, the second direction being a direction perpendicular to the fitting surface;

8. The power adapter of claim 7 wherein a central angle between a central position of the insertion slot and a central position of the engagement slot is 90 ° and the first engagement structure and the second engagement structure are rotated 90 ° to engage the extension with the engagement slot.

9. The power adapter of claim 7, wherein a notch is provided in a middle portion of the first mating structure to enable the clamping portion to extend to the notch, the notch has a second position corresponding to a bending position of the extension portion and a first position corresponding to a position of the fixing portion, and the mounting portion can drive the clamping portion to move between the first position and the second position;

10. The power adapter according to any one of claims 1 to 9, wherein a direction in which the second housing and the fitting portion are covered is perpendicular to an extending direction of the connecting wire.