Power plug conversion device and charger

Abstract

The utility model relates to the technical field of chargers, in particular to a power plug conversion device and a charger, the power plug conversion device comprises a first plug and a second plug, the first plug is fixedly connected to the charger, the second plug is connected to the first plug in a replaceable manner, and the first plug is electrically connected with the second plug; the first plug is provided with a first pin and a storage cavity, and the first pin is rotationally connected to the first plug and is stored in the storage cavity after rotating; the second plug is provided with a second pin and a conductive clamping piece, one end of the conductive clamping piece is electrically connected with the second pin, and the other end of the conductive clamping piece clamps the first pin located in the containing cavity and is electrically connected with the first pin. Finally, a common plug can be arranged on the charger, conversion is not needed, long-term domestic use is facilitated, the conductive efficiency and the charging safety are improved, when the charger needs to be used abroad, a corresponding foreign standard plug can be converted, and the charger is convenient to use abroad.

Description

Technical Field

[0001] The utility model relates to the technical field of chargers, in particular to a power plug conversion device and a charger. Background Technique

[0002] At present, there are generally two types of voltages used for indoor electricity in various countries in the world, namely 100V - 130V and 220V - 240V. Correspondingly, in order to distinguish different voltages, the specifications of plug sockets in various countries are different and cannot be used interchangeably. Currently, portable chargers, such as chargers for charging electronic devices such as mobile phones or tablets, support a universal voltage of 100V - 240V, which also provides a voltage matching basis for universal chargers.

[0003] Another problem that still needs to be solved is the problem of different plug socket specifications in various countries. Therefore, chargers with convertible plugs have emerged.

[0004] For example, the Chinese patent document with the publication (announcement) number CN215497427U discloses a charger with a convertible plug, including a charger housing and a plug. The charger housing and the plug are detachably connected, and when the charger housing and the plug are assembled, the two are electrically conducted. The charger housing is provided with a connector for electrically conducting with the conductive terminal. After the charger housing and the plug are assembled, the front end of the connector contacts the end of the conductive terminal. It realizes the effect of conducting between the conversion plug and the connector by setting the connector on the housing.

[0005] However, its connector is fixedly connected to the housing, and all conversion plugs need to be in contact with the connector to be powered on. It is equivalent to each plug being detachable. Even when used in China, a conversion plug needs to be inserted, which is not convenient for long-term use in China. After all, most users mainly use it in China and only occasionally need to use the charger abroad.

[0006] Therefore, how to set a common plug on the charger, which does not require conversion and is convenient for long-term use in China, improves the conduction efficiency and charging safety, and when going abroad, can convert to the corresponding foreign standard plug for convenient use abroad. Content of the Utility Model

[0007] The utility model aims to provide a technical solution to overcome the above-mentioned deficiencies.

[0008] The utility model provides a power plug conversion device, which includes a first plug and a second plug. The first plug is fixedly connected to a charger, and the second plug is replaceably connected to the first plug to form an electrical connection between the first plug and the second plug. The first plug is provided with a first pin and a receiving cavity. The first pin is rotatably connected to the first plug and is received in the receiving cavity after rotation. The second plug is provided with a second pin and a conductive clip. One end of the conductive clip is electrically connected to the second pin, and the other end thereof clamps the first pin located in the receiving cavity and forms an electrical connection with the first pin.

[0009] As a further scheme of the utility model: the receiving cavity of the first plug is provided with a slide rail, and the second plug is provided with a slide groove. The slide groove and the slide rail cooperate with each other, so that the slide groove of the second plug slides along the slide rail of the first plug towards the direction of the first pin, so that the conductive clip of the second plug clamps the first pin.

[0010] As a further scheme of the utility model: the second plug is further provided with a plugging space, and the conductive clip is fixedly connected in the plugging space. The second plug is plugged on the first plug, so that the first pin of the first plug penetrates into the plugging space and abuts against the conductive clip, so that an electrical connection is formed between the first plug and the second plug.

[0011] As a further scheme of the utility model: a limiting groove is provided on the receiving cavity, and the second plug is further provided with a limiting protrusion. The second plug is plugged in the receiving cavity of the first plug, so that the limiting protrusion is snapped into the limiting groove, so that the second plug is locked in the receiving cavity of the first plug.

[0012] As a further scheme of the utility model: the second plug is further provided with a locking mechanism. One end of the locking mechanism is provided with a rotating shaft and is rotatably connected to the second plug, and the other end thereof is provided with a first inclined surface. The limiting protrusion is arranged on one side where the locking mechanism cooperates with the limiting groove, and a limiting spring is arranged on the other side of the locking mechanism. One end of the limiting spring abuts against the locking mechanism, and the other end thereof abuts against the second plug. The elastic force of the limiting spring causes the locking mechanism to rotate towards the direction of the limiting groove, so that the limiting protrusion is snapped into the limiting groove, and further locks the second plug on the first plug.

[0013] As a further solution of the utility model: The second plug is further provided with an unlocking mechanism, which is movably connected inside the second plug. An unlocking hole is provided on the side wall of the second plug. One end of the unlocking mechanism passes through the unlocking hole, and the other end is provided with a second inclined surface, which abuts and cooperates with the first inclined surface, so that the unlocking mechanism can drive the limiting protrusion of the locking mechanism to move away from the limiting groove, thereby enabling the locking mechanism to release the locking of the second plug, and further enabling the second plug to be pulled outwards along the slide rail.

[0014] As a further solution of the utility model: The unlocking mechanism is further provided with a pressing protrusion, an abutting protrusion and an unlocking spring. The pressing protrusion extends a certain distance out of the unlocking hole. The abutting protrusion abuts against the inner wall of the second plug. One end of the unlocking spring abuts against the pressing protrusion, and the other end abuts against the second plug. The elastic force of the unlocking spring keeps the unlocking mechanism in an extended state outwards.

[0015] As a further solution of the utility model: The first plug is further provided with a conductive elastic sheet, which is fixedly connected to the first plug. One end of the conductive elastic sheet is connected to the internal circuit of the charger, and the other end is in an abutting state with the first pin and forms an electrical connection.

[0016] The utility model further provides a charger, which includes the above-mentioned power plug conversion device, and further includes a body, a conversion circuit installed in the body, and an output interface provided on the body. The input end of the conversion circuit is electrically connected to the conductive elastic sheet in the first plug of the power plug conversion device, and its output end is electrically connected to the output interface.

[0017] As a further solution of the utility model: The first plug of the power plug conversion device is provided with a clamping strip, and the body is provided with a clamping groove. The clamping strip and the clamping groove cooperate with each other to form a snap connection, so that the first plug is detachably and fixedly connected to the body.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. By providing the first plug on the body of the charger, when used in the country, the first plug can be directly used, avoiding the conversion of the plug, facilitating daily use, and also improving the conductive efficiency and charging safety.

[0020] 2. The first pin of the first plug can rotate. When the first pin is not in use, the first pin can be rotated into the storage cavity of the first plug, which can not only protect the first pin, but also snap the second plugs of different national standards onto the first pin, thereby realizing the conversion of the charger plug and realizing the conversion and use between different plug standards.

[0021] 3. By providing a locking mechanism and an unlocking mechanism, the second plug can be more firmly inserted into the first plug. Meanwhile, when the second plug needs to be replaced, it can be quickly pulled out through the unlocking mechanism.

[0022] Therefore, through the above improvements, the present utility model can provide a power plug conversion device and a charger, which can set a common plug on the charger without conversion, facilitating long-term use in the country, improving the conductive efficiency and charging safety. When going abroad, the corresponding foreign standard plugs can be converted, facilitating use abroad.

[0023] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural view of the first pin of the present utility model;

[0026] Figure 2 It is a schematic structural view of the first pin in the storage state of the present utility model;

[0027] Figure 3 It is a schematic structural view of the first embodiment of the second plug of the present utility model;

[0028] Figure 4 It is a schematic structural view of the second embodiment of the second plug of the present utility model;

[0029] Figure 5 It is a schematic structural view of the third embodiment of the second plug of the present utility model;

[0030] Figure 6 It is a schematic structural view of the output interface of the present utility model;

[0031] Figure 7 It is a schematic structural view of the clamping strip and the clamping groove of the present utility model;

[0032] Figure 8 It is a schematic structural view of the first pin in contact with the conductive clip of the present utility model;

[0033] Figure 9 It is a schematic structural diagram of the locking mechanism and the unlocking mechanism of the present utility model in abutment;

[0034] Figure 10 It is a schematic exploded structural diagram of the unlocking mechanism of the present utility model;

[0035] Figure 11 It is a schematic structural diagram of the slide rail and the chute of the present utility model;

[0036] Figure 12 It is a schematic structural diagram of the insertion space of the present utility model;

[0037] Figure 13 It is a schematic cross-sectional view of the second plug of the present utility model.

[0038] The reference numerals and names in the figure are as follows:

[0039] 10 body; 11 conversion circuit; 12 output interface; 13 clamping groove; 20 first plug; 21 first pin; 22 receiving cavity; 23 slide rail; 24 limiting groove; 25 conductive elastic sheet; 26 clamping strip; 30 second plug; 31 second pin; 32 conductive clip; 33 chute; 34 insertion space; 35 unlocking hole; 40 locking mechanism; 41 limiting projection; 42 rotating shaft; 43 first inclined surface; 44 limiting spring; 50 unlocking mechanism; 51 second inclined surface; 52 pressing projection; 53 abutting projection; 54 unlocking spring. Specific embodiments

[0040] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0041] Please refer to Figures 1 to 13 , in the embodiment of the present utility model, a power plug conversion device includes a first plug 20 and a second plug 30. The first plug 20 is fixedly connected to a charger, and the second plug 30 is replaceably connected to the first plug 20, and an electrical connection is formed between the first plug 20 and the second plug 30; the first plug 20 is provided with a first pin 21 and a receiving cavity 22, and the first pin 21 is rotatably connected to the first plug 20 and is received in the receiving cavity 22 after rotation; the second plug 30 is provided with a second pin 31 and a conductive clip 32. One end of the conductive clip 32 is electrically connected to the second pin 31, and the other end thereof clamps the first pin 21 located in the receiving cavity 22 and forms an electrical connection with the first pin 21.

[0042] Specifically, commonly used electronic devices such as mobile phones and tablets all require chargers. Most users only need to use a charger with one type of plug specification in normal times. However, some users may occasionally need to travel abroad, and at this time, a charger with a power plug conversion function is required. But traditional chargers with a power plug conversion function usually connect to the plug that needs to be converted through conductive terminals fixedly connected to the charger to achieve conduction. Therefore, there is a situation where for most of the time when users use it in China, their chargers also contact the conductive terminals through the conversion plug, resulting in an unstable connection, inconvenient use, and lack of safety.

[0043] Therefore, by setting the first plug 20 and the second plug 30 on the charger, when the power plug conversion function is needed, only the second plug 30 needs to be replaceably plugged into the first plug 20 to achieve the conversion of the power plug with the corresponding specification of the second plug 30. And for most of the time when used in China, that is, when the conversion function is not needed, only the second plug 30 needs to be pulled out and the first plug 20 needs to be rotated out of the accommodation cavity, then the first plug 20 with the domestic specification can be used. Moreover, the first plug 20 is firmly connected to the charger body 10, convenient to use, and can also improve the conduction efficiency and charging safety.

[0044] As Figure 7 shown, preferably, a slide rail 23 is provided in the accommodation cavity 22 of the first plug 20, and a slide groove 33 is provided on the second plug 30. The slide groove 33 and the slide rail 23 cooperate with each other, so that the slide groove 33 of the second plug 30 slides along the slide rail 23 of the first plug 20 towards the rotation part of the first pin 21, thereby clamping the first pin 21 of the first plug 20 by the conductive clip 32 of the second plug 30.

[0045] Specifically, in order to make it more convenient for the second plug 30 to be plugged into the charger, corresponding slide rails 23 and slide grooves 33 can also be provided. When the second plug 30 is inserted into the accommodation cavity, the slide groove 33 can be aligned with the slide rail 23 first, and then pushed forward along, and the second plug 30 can be easily plugged into the charger. It can be understood that preferably, two slide rails 23 are respectively provided on the two side walls of the accommodation cavity, and two slide grooves 33 are also respectively provided on both sides of the second plug 30, so that the second plug 30 can be plugged into the accommodation cavity more stably.

[0046] As Figure 12As shown, preferably, the second plug 30 is further provided with a plugging space 34, the conductive clip 32 is fixedly connected within the plugging space 34, the second plug 30 is plugged onto the first plug 20, such that the first pin 21 of the first plug 20 penetrates into the plugging space 34 and forms an abutment with the conductive clip 32, thereby enabling the first plug 20 and the second plug 30 to form an electrical connection.

[0047] Specifically, in order to facilitate better contact between the first pin 21 and the conductive clip 32, a plugging space 34 can also be provided, the conductive clip 32 is fixedly connected within the plugging space 34, and the front end opening of the plugging space 34 facing the first pin 21 is slightly larger than the rear end opening, enabling the first pin 21 to be better inserted into the plugging space 34. Additionally, the conductive clip 32 can be made of an elastic material in the prior art. Further, a certain clamping piece (not shown in the figure) can be provided at the contact portion between the conductive clip 32 and the first pin 21, enabling the first pin 21 and the conductive clip 32 to be better clamped, forming a tight abutment, and thus better conducting electricity.

[0048] As Figure 13 shown, preferably, a limiting groove 24 is provided on the receiving cavity 22, and the second plug 30 is further provided with a limiting protrusion 41. The second plug 30 is plugged into the receiving cavity 22 of the first plug 20, such that the limiting protrusion 41 is snapped into the limiting groove 24, thereby locking the second plug 30 within the receiving cavity 22 of the first plug 20.

[0049] Specifically, in order to prevent the second plug 30 from disengaging from the receiving cavity, corresponding limiting grooves 24 and limiting protrusions 41 can also be provided, using the limiting protrusion 41 and the limiting groove 24 to form a snap connection, enabling the second plug 30 to be stably fixedly connected within the receiving cavity and enabling the first pin 21 and the conductive clip 32 to form a stable electrical connection.

[0050] As Figures 9 to 13 shown, preferably, the second plug 30 is further provided with a locking mechanism 40. One end of the locking mechanism 40 is provided with a rotating shaft 42 and is rotatably connected to the second plug 30, and the other end thereof is provided with a first inclined surface 43; the limiting protrusion 41 is provided on the side of the locking mechanism 40 that cooperates with the limiting groove 24, and a limiting spring 44 is provided on the other side of the locking mechanism 40. One end of the limiting spring 44 abuts against the locking mechanism 40, and the other end thereof abuts against the second plug 30. The elastic force of the limiting spring 44 causes the locking mechanism 40 to rotate towards the limiting groove 24, enabling the limiting protrusion 41 to be snapped into the limiting groove 24, and further locking the second plug 30 onto the first plug 20.

[0051] Specifically, in order to enable the limiting bump 41 to be more firmly clamped in the limiting groove 24, a locking mechanism 40 can also be provided. By using the elastic force of the limiting spring 44, the limiting bump 41 is abutted against the limiting groove 24, so that the second plug 30 can be more firmly connected in the accommodating cavity.

[0052] As Figures 9 to 13 shown, preferably, the second plug 30 is further provided with an unlocking mechanism 50. The unlocking mechanism 50 is movably connected inside the second plug 30. An unlocking hole 35 is provided on the side wall of the second plug 30. One end of the unlocking mechanism 50 passes through the unlocking hole 35, and the other end thereof is provided with a second inclined surface 51. The second inclined surface 51 and the first inclined surface 43 are abutted and matched with each other, so that the unlocking mechanism 50 can drive the limiting bump 41 of the locking mechanism 40 to move away from the limiting groove 24, thereby releasing the locking of the locking mechanism 40 on the second plug 30, and further enabling the second plug 30 to be pulled outwards along the slide rail 23. The unlocking mechanism 50 is further provided with a pressing bump 52, an abutting bump 53 and an unlocking spring 54. The pressing bump 52 extends a certain distance out of the unlocking hole 35. The abutting bump 53 abuts against the inner wall of the second plug 30. One end of the unlocking spring 54 abuts against the pressing bump 52, and the other end thereof abuts against the second plug 30. The elastic force of the unlocking spring 54 keeps the unlocking mechanism 50 in an extended state outwards.

[0053] Specifically, after the locking mechanism 40 is provided, although the second plug 30 can be more firmly fixed in the accommodating cavity, it is not convenient to pull out. Therefore, an unlocking mechanism 50 can also be provided. Through the interaction between the first inclined surface 43 and the second inclined surface 51, when the pressing bump 52 is pressed inwards, the limiting bump 41 of the locking mechanism 40 can be rotated a certain angle in the direction away from the limiting groove 24, so that the limiting bump 41 leaves the limiting groove 24 and releases the locked state of the second plug 30, so that the second plug 30 can be pulled out of the accommodating cavity.

[0054] As Figure 10 shown, preferably, the first plug 20 is further provided with a conductive elastic sheet 25. The conductive elastic sheet 25 is fixedly connected to the first plug 20. One end of the conductive elastic sheet 25 is connected to the internal circuit of the charger, and the other end thereof is in an abutting state with the first pin 21 and forms an electrical connection.

[0055] Specifically, after the first pin 21 rotates and can leave the receiving cavity, it protrudes outside the main body 10 of the charger, so that the first pin 21 can be inserted into an external socket, and an electrical connection is formed between the first pin 21 and the external socket, thereby connecting power to the charger. When the first pin 21 rotates to be received in the receiving cavity, although it will not be plugged into an external socket for use, when it is necessary to use a power plug of other specifications for conversion, the second plug 30 also needs to be electrically connected to the first pin 21. Therefore, when the first pin 21 is received in the receiving cavity, it is also necessary to maintain an electrical connection with the conductive elastic piece 25. Therefore, when the first pin 21 is in the plugged state or the received state, it is respectively electrically connected to the conductive elastic piece 25. In addition, it can be understood that in order to enable the first pin 21 to rotate, a corresponding rotating shaft (not shown in the figure) also needs to be provided at the tail of the first pin 21, and the rotating shaft is rotatably connected to the first plug 20.

[0056] As Figures 1 to 7 shown, preferably, a charger includes the above-mentioned power plug conversion device, and further includes a main body 10, a conversion circuit 11 installed in the main body 10, and an output interface 12 provided on the main body 10. The input end of the conversion circuit 11 is electrically connected to the conductive elastic piece 25 in the first plug 20 of the power plug conversion device, and its output end is electrically connected to the output interface 12. A clamping strip 26 is provided on the first plug 20 of the power plug conversion device, and a clamping groove 13 is provided on the main body 10. The clamping strip 26 and the clamping groove 13 cooperate with each other to form a snap connection, so that the first plug 20 is detachably and fixedly connected to the main body 10.

[0057] Specifically, the charger may further include a conversion circuit 11. The conversion circuit 11 may use a related conversion circuit 11 in the prior art to convert an AC voltage of 100V to 240V into a DC voltage required by the user and provide it to the user through the output interface 12. It can be understood that the output interface 12 may be provided in multiple numbers, such as providing a USB-A interface or providing three TYPE-C interfaces to facilitate the user's use.

[0058] In addition, in order to facilitate installation and subsequent maintenance, the first plug 20 of the power plug conversion device can also be detachably and fixedly connected to the main body 10 of the charger.

[0059] When in use, first, when using in China, it can be as Figure 1As shown, rotate the first pin 21 out of the receiving cavity so that it can be inserted into a domestic socket for corresponding use. Since the overall structure of the first plug 20 is fixedly connected to the body 10 of the charger, the connection is firm, the service life is long, and it is also convenient for plugging and unplugging. When the use is completed, it can be as Figure 2 shown, rotate the first pin 21 and store it in the receiving cavity, which can not only protect the first pin 21, but also facilitate the carrying of the charger.

[0060] As Figure 3 described, in the first embodiment, when an EU standard power plug needs to be used, the corresponding EU standard second plug 30 can be plugged into the receiving cavity so that the conductive clip 32 of the second plug 30 forms an electrical connection with the first pin 21 of the first plug 20. Subsequently, the EU standard second plug 30 can be inserted into an EU standard socket, thereby connecting power to the charger and starting to use the charger.

[0061] As Figure 4 shown, in the second embodiment, when a UK standard power plug needs to be used, the corresponding UK standard second plug 30 can be plugged into the receiving cavity so that the conductive clip 32 of the second plug 30 forms an electrical connection with the first pin 21 of the first plug 20. Subsequently, the UK standard second plug 30 can be inserted into a UK standard socket, thereby connecting power to the charger and starting to use the charger.

[0062] As Figure 5 shown, in the third embodiment, when an Australian standard power plug needs to be used, the corresponding Australian standard second plug 30 can be plugged into the receiving cavity so that the conductive clip 32 of the second plug 30 forms an electrical connection with the first pin 21 of the first plug 20. Subsequently, the Australian standard second plug 30 can be inserted into an Australian standard socket, thereby connecting power to the charger and starting to use the charger.

[0063] When other standard power plugs are not used, the second plug 30 and the first plug 20 can be released from the locked state by pressing the pressing bump 52, so as to pull out the second plug 30. Subsequently, the charger with the first plug 20 can continue to be used. In addition, according to needs, second plugs 30 of other standards can also be produced and installed, so as to expand more usage scenarios of different standards.

[0064] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A power plug conversion device, characterized in that: The invention comprises a first plug (20) and a second plug (30), wherein the first plug (20) is fixedly connected to the charger, and the second plug (30) is replaceably connected to the first plug (20), and an electrical connection is formed between the first plug (20) and the second plug (30); the first plug (20) is provided with a first plug pin (21) and a storage cavity (22), and the first plug pin (21) is rotatably connected to the first plug (20) and is stored in the storage cavity (22) after rotation; the second plug (30) is provided with a second plug pin (31) and a conductive clip (32), one end of the conductive clip (32) is electrically connected to the second plug pin (31), and the other end thereof clamps the first plug pin (21) located in the storage cavity (22) and forms an electrical connection with the first plug pin (21); The storage cavity (22) of the first plug (20) is provided with a slide rail (23), and the second plug (30) is provided with a slide groove (33), and the slide groove (33) and the slide rail (23) cooperate with each other, so that the slide groove (33) of the second plug (30) slides along the slide rail (23) of the first plug (20) toward the direction of the first plug pin (21), so that the conductive clip (32) of the second plug (30) clamps the first plug pin (21); The receiving cavity (22) is provided with a limiting groove (24), and the second plug (30) is also provided with a limiting protrusion (41); the second plug (30) is plugged into the receiving cavity (22) of the first plug (20), so that the limiting protrusion (41) is inserted into the limiting groove (24), thereby locking the second plug (30) in the receiving cavity (22) of the first plug (20); The second plug (30) is also provided with a locking mechanism (40), one end of which is provided with a rotating shaft (42) and is rotatably connected to the second plug (30), and the other end of which is provided with a first inclined surface (43); the limiting protrusion (41) is provided on one side of the locking mechanism (40) that matches the limiting groove (24), and the other side of the locking mechanism (40) is provided with a limiting spring (44), one end of the limiting spring (44) abuts against the locking mechanism (40), and the other end of the limiting spring (44) abuts against the second plug (30), and the elastic force of the limiting spring (44) causes the locking mechanism (40) to rotate in the direction of the limiting groove (24), so that the limiting protrusion (41) is stuck in the limiting groove (24), thereby locking the second plug (30) on the first plug (20).

2. A power plug conversion device according to claim 1, characterized in that: The second plug (30) is also provided with a plug-in space (34), the conductive clip (32) is fixedly connected in the plug-in space (34), and the second plug (30) is plugged into the first plug (20), so that the first plug pin (21) of the first plug (20) penetrates into the plug-in space (34) and forms abutment with the conductive clip (32), thereby forming an electrical connection between the first plug (20) and the second plug (30).

3. A power plug conversion device according to claim 1, characterized in that: The second plug (30) is also provided with an unlocking mechanism (50), the unlocking mechanism (50) being movably connected to the inside of the second plug (30), an unlocking hole (35) being provided on the side wall of the second plug (30), one end of the unlocking mechanism (50) passing through the unlocking hole (35), and the other end thereof being provided with a second inclined surface (51), the second inclined surface (51) and the first inclined surface (43) being abutted against each other, so that the unlocking mechanism (50) can drive the limiting protrusion (41) of the locking mechanism (40) to move in a direction away from the limiting groove (24), so that the locking mechanism (40) releases the locking of the second plug (30), and further the second plug (30) can be pulled outward along the slide rail (23).

4. A power plug conversion device according to claim 3, characterized in that: The unlocking mechanism (50) is further provided with a pressing protrusion (52), an abutting protrusion (53) and an unlocking spring (54); the pressing protrusion (52) extends a certain distance out of the unlocking hole (35); the abutting protrusion (53) abuts against the inner wall of the second plug (30); one end of the unlocking spring (54) abuts against the pressing protrusion (52) and the other end abuts against the second plug (30); the elastic force of the unlocking spring (54) keeps the unlocking mechanism (50) in an outwardly extended state.

5. A power plug conversion device according to claim 1, characterized in that: The first plug (20) is also provided with a conductive spring (25), which is fixedly connected to the first plug (20), one end of the conductive spring (25) is connected to the internal circuit of the charger, and the other end thereof is in abutment with the first plug pin (21) to form an electrical connection.

6. A charger, characterized in that: A power plug conversion device comprising any one of claims 1 to 5, further comprising a body (10), a conversion circuit (11) installed in the body (10), and an output interface (12) arranged on the body (10), wherein an input end of the conversion circuit (11) is electrically connected to a conductive spring (25) in a first plug (20) of the power plug conversion device, and an output end thereof is electrically connected to the output interface (12).

7. A charger according to claim 6, characterized in that: The first plug (20) of the power plug conversion device is provided with a snap-on strip (26), and the body (10) is provided with a snap-on groove (13), the snap-on strip (26) and the snap-on groove (13) cooperate with each other to form a snap connection, so that the first plug (20) is detachably fixedly connected to the body (10).

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