Foldable power plug

By designing a power plug with folding and expansion functions, the direct contact between conductive shrapnel and pin assembly can achieve current conduction, solving the problems of complex connection structure and unreliable assembly of the existing power plug, simplifying the structure and improving reliability Sexual effect.

CN222508174UActive Publication Date: 2025-02-18SHENZHEN BASEUS TECH CO LTD
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Patent Information

Application Number
CN202421138253.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-22
Publication Date
2025-02-18
Estimated Expiration
2034-05-22

AI Technical Summary

Technical Problem

The existing foldable power plug has a complex connection structure and is unreliable assemblies, which affects the user's experience.

Method used

A power plug including a body, a pin assembly and a conductive shrapnel is designed. The pin assembly is movably connected to the body and can be switched between folding and releasing into the storage groove and spreading out of the storage groove. The conductive shrapnel is fixed to the bottom surface of the storage groove. On the other hand, the pin assembly is directly abutted on the conductive shrapnel in the unfolded state to conduct current.

Benefits of technology

The connection structure of the power plug is simplified, the assembly complexity and production costs are reduced, and the reliability of the electrical connection and the user experience are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of power plugs, and provides a foldable power plug, which is used for being connected with an external power supply, and comprises a body provided with a storage groove; the plug pin assembly is used for being connected with the external power supply for electric conduction, the plug pin assembly is movably connected with the body, and at least part of the plug pin assembly is located in the containing groove so that the plug pin assembly can be switched between a folded state in which the plug pin assembly can be folded into the containing groove and an unfolded state in which the plug pin assembly can be overturned to extend out of the containing groove; the conductive elastic sheet is fixed on the bottom surface of the accommodating groove and is positioned below the pin assembly; wherein, in the unfolding state, the pin assembly is directly abutted against the conductive elastic sheet so as to conduct current. According to the power plug provided by the embodiment of the utility model, the connection structure of the power plug is simplified, the assembly process is simplified, and the assembly cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of power plugs, in particular to a foldable power plug. Background Art

[0002] When traveling, mobile phones, tablet computers and other electronic devices and their compatible chargers are essential items. Usually, the power plug of the charger is large and protruding, which not only takes up the storage space of the backpack but also easily scratches the backpack. The related foldable power plug has many assembly parts, complex structure, unreliable assembly and other problems, which affect the user experience. Utility Model Content

[0003] In view of this, the utility model provides a foldable power plug to solve the technical problem of the complicated connection structure of the foldable power plug.

[0004] To solve the above problems, the technical solution of the utility model is achieved as follows:

[0005] A foldable power plug, used for connecting to an external power source, comprises: a body, having a storage slot; a pin assembly, used for connecting to the external power source for electrical conduction, the pin assembly being movably connected to the body and at least partially located in the storage slot, so as to switch between a folded state in which the plug is folded and stored in the storage slot and an unfolded state in which the plug is flipped and extended out of the storage slot; a conductive spring sheet, fixed on the bottom surface of the storage slot and located below the pin assembly; wherein, in the unfolded state, the pin assembly directly abuts against the conductive spring sheet to conduct current.

[0006] In some embodiments, the pin assembly includes: a shell, a metal pin movably connected to the body, fixed in the shell, and having a first end and a second end respectively exposed outside the shell; wherein, in the expanded state, the first end of the metal pin is in contact with the conductive spring sheet, and the second end is used to connect to the external power supply.

[0007] In some embodiments, a conductive groove is provided on a side of the conductive spring sheet facing the pin assembly; wherein, in the expanded state, the first end of the metal pin is located in the conductive groove and contacts the bottom of the conductive groove.

[0008] In some embodiments, the power plug further includes: a limiting structure for limiting a flipping position of the pin assembly in the unfolded state, and the limiting structure is disposed on the body and / or the shell.

[0009] In some embodiments, the power plug further includes: a cover plate connected to the body, and the conductive spring is arranged between the body and the cover plate; wherein, a limit plate with one end extending and suspended is arranged on the cover plate, and the limit structure is arranged on the limit plate and / or the shell.

[0010] In some embodiments, the limiting structure includes a limiting protrusion and a limiting groove, the limiting protrusion is arranged on any one of the limiting plate and the shell, and the limiting groove is opened on the other one of the limiting plate and the shell, wherein in the expanded state, the limiting protrusion is clamped in the limiting groove.

[0011] In some embodiments, the limiting plate includes a first plate body and a second plate body connected to each other, a first limiting portion is formed on the first plate body, the limiting groove is opened on the first limiting portion, the limiting protrusion is arranged on the shell, and a second limiting portion is arranged on the second plate body; wherein the limiting protrusion cooperates with the second limiting portion to limit the position of the pin assembly in the folded state.

[0012] In some embodiments, the first plate body is parallel to the bottom surface of the storage groove, one end of the second plate body is vertically connected to the first plate body, and the other end of the second plate body is suspended; wherein, the main body is located in the storage groove and a support plate is provided, and one suspended end of the second plate body abuts against the support plate.

[0013] In some embodiments, the power plug further includes a fastener, and the cover is fixedly connected to the body via the fastener.

[0014] In some embodiments, rotating shafts are respectively provided on two opposite sides of the shell, and a connecting hole is provided on the body or the cover plate, and the rotating shaft is movably inserted into the connecting hole.

[0015] The foldable power plug provided by the utility model comprises a body and a pin assembly movably connected to the body, wherein a storage slot is provided on the body, and the pin assembly can switch between a folded state in which the pin assembly is folded and stored in the storage slot and an unfolded state in which the pin assembly is flipped and extended out of the storage slot. By fixing the conductive spring sheet on the bottom surface of the storage slot and located below the pin assembly, when the pin assembly is in the unfolded state, the pin assembly can directly abut against the conductive spring sheet to conduct current, without the need to set up other additional parts for connection and conduction, thereby simplifying the connection structure of the power plug, simplifying the assembly process, and reducing the assembly cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the assembly of the power plug in the embodiment of the utility model;

[0017] Figure 2It is a structural schematic diagram of the pin assembly in the embodiment of the utility model when it is in the unfolded state B;

[0018] Figure 3 This is a schematic diagram of the structure of the pin assembly in the embodiment of the utility model when it is in the folded state A;

[0019] Figure 4 This is a schematic diagram of the structure of the pin assembly in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the conductive spring in the embodiment of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the cover plate in the embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Power plug; 10. Main body; 11. Pin assembly; 12. Conductive spring; 13. Limiting structure; 14. Cover plate; 15. Fastener; 101. Storage slot; 102. Support plate; 103. Connection hole; 111. Shell; 112. Metal pin; 113. Rotating shaft; 1121. First end; 1122. Second end; 121. Conductive groove; 131. Limiting protrusion; 132. Limiting groove; 141. Limiting plate; 1411. First plate body; 1412. Second plate body; 1413. First limiting portion; 1414. Second limiting portion; DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0026] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the corresponding schematic diagrams, which may or may not be the left and right directions in normal use.

[0027] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0028] like Figure 1 As shown, the embodiment of the utility model provides a foldable power plug 1, which is used to connect to an external power source, and the external power source can be a power source, which can be a socket or a power strip. The power plug 1 includes a body 10, a pin assembly 11 and a conductive spring 12; wherein the body 10 has a storage slot 101, the pin assembly 11 is used to connect to the external power source for electrical conduction, the pin assembly 11 is movably connected to the body 10, and is at least partially located in the storage slot 10, so as to switch between a folded state A folded into the storage slot 101 and an unfolded state B flipped out of the storage slot 101 (such as Figure 2 and Figure 3 As shown in FIG. 1 , it can be understood that the pin assembly 11 is installed in the receiving slot 101 of the body 10, and the pin assembly 11 can rotate relative to the body 10. During the rotation of the pin assembly 11, the pin assembly 11 has two states: when the pin assembly 11 is in the state of Figure 2 In the unfolded state B shown in FIG. 1 , the pin assembly 11 extends out of the storage slot 101, and the power plug 1 can be connected to an external power source to conduct electricity normally; when the pin assembly 11 is in the state shown in FIG. Figure 3 In the folded state A shown, the pin assembly 11 is completely located in the storage slot 101, the pin assembly 11 of the power plug 1 is retracted, and the size is reduced for easy storage and carrying.

[0029] Specifically, Figure 2 As shown, the conductive spring 12 is fixed on the bottom surface of the storage slot 101 and is located below the pin assembly 11; wherein, in the unfolded state B, the pin assembly 11 directly abuts against the conductive spring 12 to conduct current. That is to say, when the pin assembly 11 rotates to extend out of the storage slot 101, one end of the pin assembly 11 directly abuts against the conductive spring 12 disposed on the bottom surface of the storage slot 101, so that the pin assembly 11 can be energized, and no conductive device such as a conductive wire is required to be provided separately, so that the power plug 1 can work normally. That is, such a setting simplifies the structure that enables the pin assembly 11 and the conductive spring 12 to be energized, and reduces the difficulty of assembly and production cost. Moreover, the pin assembly 11 directly abuts against the conductive spring 12, which improves the reliability of the electrical connection between the two.

[0030] The foldable power plug provided by the utility model comprises a body, a pin assembly and a conductive spring sheet, a storage slot is provided on the body, the pin assembly is movably connected to the body, the pin assembly can switch between a folded state in which the pin assembly is folded and stored in the storage slot and an unfolded state in which the pin assembly is flipped and extended out of the storage slot, and the conductive spring sheet is fixed on the bottom surface of the storage slot and is located below the pin assembly. In this way, when the pin assembly is in the unfolded state, the pin assembly can directly abut against the conductive spring sheet located below it, so that current can be conducted, and there is no need to additionally provide conductive devices such as conductive wires, which simplifies the connection structure of the power plug, simplifies the assembly process, and reduces the assembly cost.

[0031] In some embodiments, Figure 4 As shown, the pin assembly 11 includes a shell 111 and a metal pin 112, wherein the shell 111 is movably connected to the body 10, and the connection method can be achieved by providing a connection structure on the shell 111 and / or the body 10. The metal pin 112 is fixed in the shell 111, and has a first end 1121 and a second end 1122 respectively exposed outside the shell 111. It can be understood that the pin assembly 11 is installed in the storage slot 101 through the shell 111, and the metal pin 112 is arranged in the shell 111. The first end 1121 and the second end 1122 of the metal pin 112 are respectively extended from the two ends of the shell 111, so as to be able to be connected to the conductive spring 12 and the external power supply for electrical conduction.

[0032] Specifically, Figure 2 and Figure 4 As shown, in the unfolded state B, the first end 1121 of the metal pin 11 contacts the conductive spring sheet 12, and the second end 1122 is used to connect to an external power source. That is, when the pin assembly 11 is in the unfolded state B, the second end 1122 of the metal pin 112 extends out of the receiving slot 101, connects to an external power source, and guides the current into the pin assembly 11; the first end 1121 of the metal pin 112 is located in the receiving slot 101, and abuts against the conductive spring sheet 12 on the bottom surface of the receiving slot 101, and guides the current in the pin assembly 11 into the electronic device connected to the power plug 1.

[0033] The power plug in the embodiment of the utility model makes the metal pins and the conductive spring sheet directly abut each other in the unfolded state, so as to realize the conduction current with a simple structure, reduce the complexity of assembly, reduce the difficulty of assembly, reduce the cost, and facilitate mass production.

[0034] like Figure 2 and Figure 5 As shown, in some embodiments, a conductive groove 121 is provided on a side of the conductive spring sheet 12 facing the pin assembly 11. In the unfolded state B, the first end 1121 of the metal pin 112 (refer to Figure 4 ) is located in the conductive groove 121 and contacts the bottom of the conductive groove 121. It can be understood that in the unfolded state B, the first end 1121 of the metal pin 112 abuts against the conductive spring sheet 12. In order to further ensure the stability of the conduction of the pin assembly 11 in the unfolded state B, a conductive groove 121 is provided on the conductive spring sheet 12 at the abutting position with the first end 1121, so that the metal pin 112 can contact the bottom of the conductive groove 121 in the unfolded state B, thereby increasing the contact area between the metal pin 112 and the conductive spring sheet 12. At the same time, during the rotation of the pin assembly 11, the first end 1121 of the metal pin 112 will move along the conductive spring sheet 12, and the conductive groove 121 can guide the movement of the metal pin 112.

[0035] The embodiment of the utility model further ensures the stability of current conduction by setting a conductive groove at the abutment position of the conductive spring and the metal pin, and at the same time guides the rotation of the metal pin to avoid lateral sliding, thereby ensuring the stability of the rotation process of the pin assembly, which is conducive to the stable switching of different pin assemblies between two states, optimizes the function of the product, and improves the user experience.

[0036] In some embodiments, Figure 2 and Figure 4 As shown, the power plug 1 further includes: a limiting structure 13, which is used to limit the flipping position of the pin assembly 11 in the unfolded state B, and the limiting structure 13 is arranged on the body 10 and / or the shell 111. It can be understood that when the pin assembly 11 is in the unfolded state B, one end of the pin assembly 11 is located in the receiving groove 101 and contacts the bottom surface of the receiving groove 101. At this time, the limiting structure 13 is arranged at the position where the pin assembly 11 contacts the body 10, and is respectively arranged on the body 10 and the shell 111, and the two cooperate to fix the position of the pin assembly 11 in the unfolded state B, so as to prevent the plug assembly 11 in the unfolded state B from being difficult to fix and affecting normal use.

[0037] The embodiment of the utility model fixes the position of the pin assembly in the expanded state by setting a limiting structure between the pin assembly and the body, thereby preventing the power plug from shaking during use, ensuring that the power plug can be used normally in the expanded state, and further optimizing product performance.

[0038] In some embodiments, Figure 1 and Figure 2As shown, the power plug 1 also includes: a cover plate 14, which is connected to the body 10, and a conductive spring 12 is arranged between the body 10 and the cover plate 14, that is, the cover plate 14 and the body 10 are connected and enclosed to form a storage groove 101, and the conductive spring 12 is fixedly installed on the cover plate 14, and is installed on the bottom surface of the body 10 together with the cover plate 14, and a part of the conductive spring 12 is located between the cover plate 14 and the body 10, and the other part is exposed in the storage groove 101, so that the pin assembly 11 can abut against the conductive spring 12 when in the unfolded state B.

[0039] like Figure 6 As shown, the cover plate 14 is provided with a limit plate 141 with one end extending and suspended, and the limit structure 13 is provided on the limit plate 141 and / or the housing 111. It can be understood that one end of the limit plate 141 is connected to the cover plate 14, and the other end is suspended, and the limit structure 13 is provided near the end where the limit plate 141 and the cover plate 14 are connected. When the limit structure 13 is engaged (the pin assembly 11 is in the unfolded state B), the limit plate 141 with one end suspended will undergo a certain elastic deformation, so that the limit structure 13 on the housing 111 is closely engaged with the limit structure 13 on the limit plate 141. In the absence of external force, the pin assembly 11 is stably fixed in the unfolded state B by the limit structure 13, so as to prevent the pin assembly 11 from shaking.

[0040] In the embodiment of the utility model, the limiting structure is arranged on a limiting plate suspended at one end, so that the limiting structure can stably fix the position of the pin assembly, thereby further optimizing product performance.

[0041] In some embodiments, Figure 2 As shown, the limiting structure 13 includes a limiting protrusion 131 and a limiting groove 132, wherein the limiting protrusion 131 is arranged on any one of the limiting plate 141 and the housing 111, and the limiting groove 132 is opened on the other of the limiting plate 141 and the housing 111, wherein in the unfolded state B, the limiting protrusion 131 is clamped in the limiting groove 132. For example, as Figure 4 As shown, the limiting protrusion 131 in the limiting structure 13 is disposed on a surface of the housing 111 close to the first end 1121, as shown in FIG. Figure 6 As shown, the limiting groove 132 in the limiting structure 13 is arranged on the limiting plate 141. During the rotation of the pin assembly 11, the limiting protrusion 131 on the housing 111 gradually approaches the limiting groove 132 on the limiting plate 141. When the limiting protrusion 131 moves into the limiting groove 132, the cooperation between the limiting groove 132 and the limiting protrusion 131 restricts the pin assembly 11 from further rotating, so that the pin assembly 11 can be positioned when it is in the unfolded state B.

[0042] It should be noted that the limiting groove 132 and the limiting protrusion 131 can also be exchanged in position, for example: the limiting groove 132 is set on the shell 111, and the limiting protrusion 131 is set on the limiting plate 141. No further restrictions are made here, as long as the above-mentioned limiting requirements can be met.

[0043] The limiting structure in the embodiment of the utility model realizes the position fixing of the pin assembly through the cooperation of the limiting groove and the limiting protrusion. The limiting requirement can be met through the cooperation of simple grooves and protrusions, which simplifies the structure of the product and reduces the production cost.

[0044] In some embodiments, Figure 6 As shown, the limiting plate 141 includes a first plate body 1411 and a second plate body 1412 connected to each other, a first limiting portion 1413 is formed on the first plate body 1411, a limiting groove 132 is provided on the first limiting portion 1413, and a limiting protrusion 131 is provided on the housing 111. It can be understood that one end of the first plate body 1411 is connected to the cover plate 14, the first limiting portion 1413 is provided at an end close to the connection cover plate 14, the second plate body 1412 is provided at an end away from the first limiting portion 1413 and is perpendicular to the first plate body 1411, and the first limiting portion 1413 is close to the pin assembly 11 (reference Figure 1 ), a limiting groove 132 is set at the top of the first limiting portion 1413, and the limiting groove 132 set on the first limiting portion 1413 is closer to the limiting protrusion 131. When the user rotates the pin assembly, the limiting protrusion 132 will gradually move into the limiting groove 131 along the first limiting portion 1413. During this process, the user needs to use force to fix the position of the pin assembly 11, and when the limiting protrusion 132 moves into the limiting groove 131, the limiting protrusion 132 will collide with the limiting groove 131 to produce a prompt sound, so that the user can get a good hand feel when using it, and has an in-place reminder, prompting the user that the pin assembly 11 is already in the unfolded state B and can be connected to the power supply for use.

[0045] like Figure 3 and Figure 6As shown, a second limiting portion 1414 is provided on the second plate 1412, and the limiting protrusion 131 cooperates with the second limiting portion 1414 to limit the position of the pin assembly 11 in the folded state A. It can be understood that when the pin assembly 11 is in the folded state A, the limiting protrusion 131 abuts against the second limiting portion 1414, and the limiting protrusion 131 abuts against the side of the second limiting portion 1414 away from the first plate 1411, limiting the pin assembly 11 from rotating in the direction of extending out of the storage slot 101, so that the pin assembly 11 can be stably maintained in the folded state A when there is no external force. When the user rotates the pin assembly 11 from the folded state A, the limiting protrusion 131 pushes the second plate body 1412 through the second limiting portion 1414 during the movement, and causes the second plate body 1412 to undergo elastic deformation. At this time, the limiting protrusion 131 can move along the outer edge of the second limiting portion 1414 to a side of the second limiting portion 1414 close to the first plate body 1411, and continue to move toward the direction close to the first limiting portion 1413.

[0046] The embodiment of the utility model reduces the distance between the limiting groove and the limiting protrusion in the unfolded state, so that the matching of the limiting groove and the limiting protrusion is tighter, and there is a prompt of the position (such as sound or tactile feeling, etc.); the position of the pin assembly in the folded state is limited by the abutment between the second limiting portion and the limiting protrusion, the structure is simple, the assembly is convenient, and the production cost is reduced.

[0047] In some embodiments, Figure 2 As shown, the first plate 1411 is parallel to the bottom surface of the storage slot 101 , that is, the first plate 1411 is located on the bottom surface of the storage slot 101 , connected to the body 1 and becomes a part of the bottom surface of the storage slot 101 . One end of the second plate body 1412 is vertically connected to the first plate body 1411, and the other end of the second plate body 1412 is suspended, wherein the main body 10 is located in the storage groove 101 and a support plate 102 is provided, and the suspended end of the second plate body 1412 abuts against the support plate 102. It can be understood that the second plate body 1412 is vertically arranged on the first plate body 1411, and the end away from the first plate body 1411 abuts on the support plate 102, and is parallel to the support plate 102, and is connected to the support plate 102 to form the side wall of the storage groove 101. At the same time, the support plate 102 can limit the deformation of the second plate body 1412 to prevent the limit plate 141 from being too deformed during the rotation of the pin assembly 11, causing damage to the limit plate 141.

[0048] The storage slot in the embodiment of the utility model is formed by the cover plate and the main body. The cover plate also has a limiting function, which simplifies the structure of the power plug. The setting of the support plate can protect the limiting plate and extend the service life of the parts, thereby optimizing product performance.

[0049] In some embodiments, Figure 1As shown, the power plug 1 further includes a fastener 15, and the cover plate 14 is fixedly connected to the body 10 through the fastener 15. It can be understood that the conductive spring 12 is arranged between the cover plate 14 and the body 10, and the fastener 14 passes through the cover plate 14 and the bottom of the receiving slot 101 to install the cover plate 14 on the body 10, and at the same time, the conductive spring 12 is stably fixed between the cover plate 14 and the body 10, which has good reliability and improves the reliability of the electrical connection between the pin assembly 11 and the conductive spring 12. The fastener 15 can be a screw or a rivet, etc.

[0050] The cover plate in the embodiment of the utility model is connected to the main body by fasteners. The connection method of the fasteners is convenient for disassembly and maintenance, which is conducive to improving the user's experience.

[0051] In some embodiments, Figure 1 and Figure 4 As shown, the housing 111 is provided with rotating shafts 113 on opposite sides, the body 10 or the cover plate 14 is provided with connecting holes 103, and the rotating shafts 113 are movably arranged in the connecting holes 103. That is to say, the housing 111 of the pin assembly 11 is provided with two rotating shafts 113, and the inner wall of the receiving slot 101 is correspondingly provided with two connecting holes 103, and the two rotating shafts 113 are movably arranged in the connecting holes 103, that is, the pin assembly 11 is rotatably connected to the body 10 through the rotating shafts 113, thereby realizing the on-demand switching between the folded state and the unfolded state, with a simple structure and good reliability in use.

[0052] The embodiment of the utility model rotatably connects the pin assembly to the body through the cooperation of the rotating shaft and the connecting hole, further simplifies the structure, facilitates installation, reduces production costs, and is conducive to mass production.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable power plug for connecting to an external power source, characterized in that: include: A body having a storage slot; A pin assembly, used to connect to the external power source for electrical conduction, the pin assembly is movably connected to the body and at least partially located in the receiving slot, so as to switch between a folded state in which the pin is folded and stored in the receiving slot and an unfolded state in which the pin is flipped and extended out of the receiving slot; A conductive spring sheet fixed on the bottom surface of the receiving slot and located below the pin assembly; Wherein, in the unfolded state, the pin assembly directly abuts against the conductive spring sheet to conduct current.

2. The power plug according to claim 1, characterized in that: The pin assembly comprises: A shell, movably connected to the body; A metal pin, fixed in the housing and having a first end and a second end respectively exposed outside the housing; Wherein, in the unfolded state, the first end of the metal pin contacts the conductive spring sheet, and the second end is used to connect to the external power source.

3. The power plug according to claim 2, characterized in that: A conductive groove is provided on a side of the conductive spring sheet facing the pin assembly; Wherein, in the expanded state, the first end of the metal pin is located in the conductive groove and contacts the bottom of the conductive groove.

4. The power plug according to claim 2, characterized in that: The power plug also includes: A limiting structure is used to limit the flipping position of the pin assembly in the unfolded state, and the limiting structure is arranged on the main body and / or the shell.

5. The power plug according to claim 4, characterized in that: The power plug also includes: The cover plate is connected to the body, and the conductive spring is arranged between the body and the cover plate; wherein the cover plate is provided with a limit plate with one end extending and suspended in the air, and the limit structure is arranged on the limit plate and / or the shell.

6. The power plug according to claim 5, characterized in that: The limiting structure includes a limiting protrusion and a limiting groove, wherein the limiting protrusion is arranged on any one of the limiting plate and the shell, and the limiting groove is opened on the other one of the limiting plate and the shell, wherein in the expanded state, the limiting protrusion is clamped in the limiting groove.

7. The power plug according to claim 6, characterized in that: The limiting plate includes a first plate body and a second plate body connected to each other, a first limiting portion is formed on the first plate body, the limiting groove is opened on the first limiting portion, the limiting protrusion is arranged on the shell, and a second limiting portion is arranged on the second plate body; wherein the limiting protrusion cooperates with the second limiting portion to limit the position of the pin assembly in the folded state.

8. The power plug according to claim 7, characterized in that: The first plate body is parallel to the bottom surface of the storage groove, one end of the second plate body is vertically connected to the first plate body, and the other end of the second plate body is suspended; wherein, the main body is located in the storage groove and a support plate is provided, and one suspended end of the second plate body abuts against the support plate.

9. The power plug according to claim 5, characterized in that: The power plug further comprises a fastener, and the cover is fixedly connected to the body via the fastener.

10. The power plug according to any one of claims 5 to 9, characterized in that: The housing is provided with rotating shafts on two opposite sides respectively, and the body or the cover plate is provided with connecting holes, and the rotating shafts are movably inserted into the connecting holes.