Plug-in power adapter

Abstract

The utility model provides a plug-in power adapter. The plug-in power adapter comprises a PCB (Printed Circuit Board), a shell cover body and a plug-in connector, the shell cover body comprises an upper shell cover body and a lower shell cover body. The upper shell cover body is provided with a first positioning port, the lower shell cover body is provided with a second positioning port, and the first positioning port and the second positioning port are communicated to form an output plugging port. The plug connector is fixed to the portion, close to the output plug interface, of the PCB so that the input end of the output power line assembly can be connected with the plug connector in an inserted mode after being inserted into the output plug interface, and the anti-disengaging enclosure part can abut against the anti-disengaging end of the output power line assembly. By optimizing the assembly sequence of the upper shell cover body, the lower shell cover body and the output power line assembly, the overall assembly efficiency of the plug-in power adapter is effectively improved; meanwhile, when any structure of the output power line assembly or the plug-in connector is aged and damaged, corresponding segmented maintenance can be carried out, so that the maintainability and the maintenance convenience of the plug-in power adapter are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply conversion, in particular to a plug-in power adapter. Background Art

[0002] A power adapter is a power conversion device whose main function is to convert AC power into DC power and adjust the current and voltage to a specific range according to the requirements of the electronic device. A power adapter generally consists of a shell (upper shell and lower shell), a PCB circuit board, an input port and an output port electrically connected to the PCB circuit board, and other structures.

[0003] The existing power adapter usually directly welds one end of the power output line on the PCB circuit board to realize the electrical connection between the power output line and the PCB circuit board. The specific operation steps are as follows: a plastic encapsulation molding process is used to coat a plastic body on one end of the power output line, and a groove is formed around the surface of the plastic body to complete the fixed connection with the notch of the power adapter shell (half of the notch exists in the upper shell, and the other half of the notch exists in the lower shell); therefore, in the actual assembly process of the power adapter, it is first necessary to directly weld one end of the power output line on the PCB circuit board, and then accurately align the groove outside the plastic body with the notch of the power adapter shell, and finally the upper shell and the lower shell of the power adapter can be buckled or screwed, which also makes the power adapter have low assembly efficiency, and the power output line is not easy to replace and repair when it is damaged, or even cannot be repaired. For example, Chinese patent document CN202495586U discloses a power adapter, including an adapter body and a power lead composed of an upper cover and a lower cover, an assembly cavity is provided in the adapter body, and a PCB circuit board is fixed on the adapter body, and a replaceable input component is provided on the adapter body corresponding to the PCB circuit board. Another example is Chinese patent document CN213342033U, which discloses a power adapter, including a box assembly and a power conversion assembly, wherein the power conversion assembly is contained in the box assembly, and the box assembly is respectively provided with an input connector and an output line, wherein the input connector is electrically connected to the input end of the power conversion assembly, and the output line is electrically connected to the output end of the power conversion assembly, and one end of the output line is provided with an output connector that can be engaged with an electrical appliance connector; an anti-pull buckle is pivotally connected to the output connector, and a bayonet is provided at the front end of the anti-pull buckle. The technical solutions disclosed in the above two patents both have the problem of low assembly efficiency and poor maintainability of the power adapter. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a plug-in power adapter which can effectively improve the assembly efficiency of the power adapter and has good maintainability.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A plug-in power adapter, comprising a PCB circuit board, wherein the PCB circuit board is electrically connected to an output power line assembly, and the plug-in power adapter further comprises:

[0007] A shell cover, the shell cover comprises an upper shell cover and a lower shell cover; the upper shell cover is buckled with the lower shell cover to form a power conversion cavity, the upper shell cover is provided with a first positioning port, the lower shell cover is provided with a second positioning port, the first positioning port is connected with the second positioning port to form an output plug interface, the output plug interface is used to insert the output power line assembly, the PCB circuit board is fixedly installed in the power conversion cavity, and an anti-slip enclosure is convexly provided on the inner wall of the power conversion cavity adjacent to the output plug interface;

[0008] A plug connector is fixed to a portion of the PCB circuit board adjacent to the output plug interface so that the input end of the output power cord assembly is plugged into the plug connector after being inserted into the output plug interface; the anti-slip enclosure is used to abut against the anti-slip end of the output power cord assembly after the output power cord assembly is inserted into the output plug interface.

[0009] In one embodiment, the plug connector includes a positive bent terminal and a negative bent terminal;

[0010] The plug-in power adapter also includes a conversion assembly, which includes a positioning enclosure, which is plugged and installed on the input end of the output power cord assembly, and the positioning enclosure is provided with a positive connection positioning hole and a negative connection positioning hole, the positive connection positioning hole is arranged corresponding to the connection end of the positive bending terminal, and the negative connection positioning hole is arranged corresponding to the connection end of the negative bending terminal.

[0011] In one embodiment, the adapter assembly also includes a positive metal adapter and a negative metal adapter; a first connection slot is provided at one end of the positive metal adapter, and the first connection slot is used to be fixedly connected to the positive wire of the output power cord assembly; a second connection slot is provided at one end of the negative metal adapter, and the first connection slot is used to be fixedly connected to the positive wire of the output power cord assembly; the positive metal adapter is arranged in the positive connection positioning hole, and the negative metal adapter is arranged in the negative connection positioning hole.

[0012] In one of the embodiments, a positive electrode socket connected to the first connection slot is formed on one side of the positioning enclosure adjacent to the positive bending terminal, and a negative electrode socket connected to the second connection slot is formed on one side of the positioning enclosure adjacent to the negative bending terminal; the connection end of the positive bending terminal is passed through the positive electrode socket and elastically plugged into the other end of the positive metal adapter, and the connection end of the negative bending terminal is passed through the negative electrode socket and elastically plugged into the other end of the negative metal adapter.

[0013] In one embodiment, the fixed end of the positive bent terminal and the connecting end of the positive bent terminal are arranged at an angle of 90°, and the fixed end of the negative bent terminal and the connecting end of the negative bent terminal are arranged at an angle of 90°.

[0014] In one of the embodiments, the fixed installation surface of the PCB circuit board is parallel to the plugging direction of the input end of the output power line assembly.

[0015] In one of the embodiments, the fixed end of the positive bent terminal and the fixed end of the negative bent terminal are respectively welded to the PCB circuit board; the plug connector also includes a fastening base, the fastening base covers the welding connection between the fixed end of the positive bent terminal and the PCB circuit board, and the fastening base also covers the welding connection between the fixed end of the negative bent terminal and the PCB circuit board.

[0016] In one embodiment, the inner side wall of the upper shell cover is provided with a first buckle groove and a second buckle groove, and the first buckle groove is arranged opposite to the second buckle groove;

[0017] The lower shell cover is formed with a first undercut portion and a second undercut portion, the first undercut portion extends to the first buckle groove and is buckled with the first buckle groove, and the second undercut portion extends to the second buckle groove and is buckled with the second buckle groove.

[0018] In one embodiment, the upper shell cover is formed with a first structural reinforcement portion and a second structural reinforcement portion on the inner side adjacent to the output plug interface, and the lower shell cover is formed with a third structural reinforcement portion and a fourth structural reinforcement portion on the inner side adjacent to the output plug interface, and the first structural reinforcement portion, the second structural reinforcement portion, the third structural reinforcement portion and the fourth structural reinforcement portion together form a guide sliding channel connected to the output plug interface, and the input end portion of the output power cord assembly is arranged in the guide sliding channel.

[0019] In one embodiment, the connection end of the positive bent terminal and the connection end of the negative bent terminal both extend to the other end of the guide channel; and / or,

[0020] The upper shell cover is also provided with a first air avoidance opening, and the lower shell cover is provided with a second air avoidance opening, the first air avoidance opening is connected with the second air avoidance opening to form an input plug interface, and the input plug interface is used to fix and install a power input plug-in, and the power input plug-in is electrically connected to the PCB circuit board.

[0021] Compared with the prior art, the utility model has at least the following advantages:

[0022] 1. The upper shell cover and the lower shell cover are quickly buckled and assembled, and then the input end of the output power cord assembly can be inserted from the output plug interface and the plug-in connector is plugged in, and the anti-dropout enclosure is abutted against the anti-dropout end of the output power cord assembly. In this way, the assembly sequence of the upper shell cover, the lower shell cover and the output power cord assembly is optimized, thereby effectively improving the overall assembly efficiency of the plug-in power adapter.

[0023] 2. It replaces the traditional method in which one end of the power output line is directly welded to the electrical connection structure of the PCB circuit board, and is plugged into the plug connector through the input end of the output power line assembly. In this way, when any structure of the output power line assembly or the plug connector is aged or damaged, it can be repaired in sections accordingly, thereby improving the maintainability and convenience of the plug-in power adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a plug-in power adapter in an embodiment;

[0026] Figure 1a for Figure 1 A schematic diagram of the structure of the plug-in power adapter shown;

[0027] Figure 2 for Figure 1 An exploded schematic diagram of the structure of the plug-in power adapter shown;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of the adapter assembly, the plug connector and the output power cord assembly of the plug-in power adapter shown;

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the plug-in power adapter shown;

[0030] Figure 5 for Figure 4 An enlarged schematic diagram of the local structure at A of the plug-in power adapter shown;

[0031] Figure 6 for Figure 1 A schematic diagram of a half-section structure of an upper shell cover of the plug-in power adapter shown;

[0032] Figure 7 for Figure 1 A schematic diagram of the structure of the plug-in power adapter shown;

[0033] Figure 8 for Figure 1 An exploded schematic diagram of the structure of the plug-in power adapter is shown. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] The present disclosure provides a plug-in power adapter, including a PCB circuit board, and the PCB circuit board is used to be electrically connected to an output power line assembly. The plug-in power adapter also includes a shell cover and a plug connector. The shell cover includes an upper shell cover and a lower shell cover; the upper shell cover is buckled with the lower shell cover and encloses a power conversion cavity, the upper shell cover is provided with a first positioning port, and the lower shell cover is provided with a second positioning port, the first positioning port is connected with the second positioning port to form an output plug interface, and the output plug interface is used to insert the output power line assembly, the PCB circuit board is fixedly installed in the power conversion cavity, and the inner wall of the power conversion cavity is adjacent to the output plug interface. The plug connector is fixed to the position of the PCB circuit board adjacent to the output plug interface, so that the input end of the output power line assembly is plugged with the plug connector after being inserted into the output plug interface; the anti-slip enclosure is used to abut against the anti-slip end of the output power line assembly after the output power line assembly is inserted into the output plug interface.

[0038] See also Figures 1 to 8 In order to better understand the plug-in power adapter 10 of the present disclosure, the plug-in power adapter 10 is further explained below:

[0039] A plug-in power adapter 10 of one embodiment includes a PCB circuit board 100, and the PCB circuit board 100 is used to be electrically connected to an output power line assembly. The plug-in power adapter 10 also includes a shell cover 200 and a plug connector 300. The shell cover 200 includes an upper shell cover 210 and a lower shell cover 220; the upper shell cover 210 and the lower shell cover 220 are buckled and enclosed to form a power conversion cavity 201, the upper shell cover 210 is provided with a first positioning port 2101, and the lower shell cover 220 is provided with a second positioning port 2201, the first positioning port 2101 and the second positioning port 2201 are connected to form an output plug interface 202, and the output plug interface 202 is used to insert the output power line assembly, and the PCB circuit board 100 is fixedly installed in the power conversion cavity 201, and an anti-drop enclosure 230 is convexly provided at a position of the inner wall of the power conversion cavity 201 adjacent to the output plug interface 202. The plug connector 300 is fixed to a portion of the PCB circuit board 100 adjacent to the output plug interface 202 so that the input end of the output power cord assembly can be plugged into the plug connector 300 after being inserted into the output plug interface 202; the anti-slip enclosure 230 is used to abut against the anti-slip end of the output power cord assembly after the output power cord assembly is inserted into the output plug interface 202.

[0040] In this embodiment, the upper shell cover 210 and the lower shell cover 220 are quickly snapped together and assembled, and then the input end of the output power cord assembly can be inserted from the output plug interface 202 and the plug-in action is completed with the plug connector 300, and the anti-slip enclosure 230 is abutted against the anti-slip end of the output power cord assembly. In this way, the overall assembly efficiency of the plug-in power adapter 10 is effectively improved by optimizing the assembly sequence of the upper shell cover 210, the lower shell cover 220 and the output power cord assembly.

[0041] Furthermore, instead of directly welding one end of the power output line to the electrical connection structure of the PCB circuit board 100 in the traditional way, the input end of the output power line assembly is connected to the plug-in connector 300. In this way, when any structure of the output power line assembly or the plug-in connector 300 is aged or damaged, corresponding segmented maintenance can be performed, thereby improving the maintainability and convenience of the plug-in power adapter 10.

[0042] like Figure 2 and Figure 3 As shown, in one embodiment, the plug connector 300 includes a positive bent terminal 310 and a negative bent terminal 320. The plug-in power adapter 10 also includes a switching assembly 400, and the switching assembly 400 includes a positioning enclosure 410, and the positioning enclosure 410 is plugged and installed at the input end of the output power cord assembly. The positioning enclosure 410 is provided with a positive connection positioning hole 4101 and a negative connection positioning hole 4102, and the positive connection positioning hole 4101 is arranged corresponding to the connection end of the positive bent terminal 310, and the negative connection positioning hole 4102 is arranged corresponding to the connection end of the negative bent terminal 320. In one embodiment, the adapter assembly 400 also includes a positive metal adapter 420 and a negative metal adapter 430; a first connection slot 4201 is provided at one end of the positive metal adapter 420, and the first connection slot 4201 is used to be fixedly connected to the positive wire of the output power cord assembly; a second connection slot 4301 is provided at one end of the negative metal adapter 430, and the first connection slot 4201 is used to be fixedly connected to the positive wire of the output power cord assembly; the positive metal adapter 420 is arranged in the positive connection positioning hole 4101, and the negative metal adapter 430 is arranged in the negative connection positioning hole 4102.

[0043] It can be understood that, in this embodiment, the positive metal adapter 420 and the negative metal adapter 430 are both hardware adapters with good conductive properties; by installing the positive metal adapter 420 in the positive connection positioning hole 4101 and the negative metal adapter 430 in the negative connection positioning hole 4102, the inclusion body can limit the positive metal adapter 420 and the negative metal adapter 430; at the same time, in this embodiment, the positioning inclusion body 410 is an integrally formed insulating plastic body, so that the positioning inclusion body 410 can limit the positive metal adapter 420 and the negative metal adapter 430. Good insulation is achieved, thereby effectively ensuring that the first connection slot 4201 of the positive metal adapter 420 is fixedly connected to the positive wire of the output power cord assembly, and the second connection slot 4301 of the negative metal adapter 430 is fixedly connected to the negative wire of the output power cord assembly, thereby ensuring reliable electrical connection stability; specifically, the first connection slot 4201 of the positive metal adapter 420 and the positive wire of the output power cord assembly can be connected by welding; similarly, the second connection slot 4301 of the negative metal adapter 430 and the negative wire of the output power cord assembly can also be connected by welding.

[0044] like Figure 2 and Figure 3 As shown, in one embodiment, a positive electrode socket 4103 connected to the first connection slot 4201 is provided on one side of the positioning enclosure 410 adjacent to the positive bending terminal 310, and a negative electrode socket 4104 connected to the second connection slot 4301 is provided on one side of the positioning enclosure 410 adjacent to the negative bending terminal 320; the connection end of the positive bending terminal 310 is passed through the positive electrode socket 4103 and is elastically plugged into the other end of the positive metal adapter 420, and the connection end of the negative bending terminal 320 is passed through the negative electrode socket 4104 and is elastically plugged into the other end of the negative metal adapter 430.

[0045] It can be understood that the connection end of the positive bent terminal 310 is passed through the positive pole socket 4103 and elastically plugged with the other end of the positive metal adapter 420; similarly, the connection end of the negative bent terminal 320 is passed through the negative pole socket 4104 and elastically plugged with the other end of the negative metal adapter 430, which avoids the positive metal adapter 420 and the negative metal adapter 430 from being exposed to the positioning container 410, thereby effectively improving the safety performance of the electrical connection of the positive metal adapter 420 and the negative metal adapter 430.

[0046] like Figures 1 to 5As shown, in one embodiment, the fixed end of the positive bent terminal 310 is set at a 90° angle with the connecting end of the positive bent terminal 310, and the fixed end of the negative bent terminal 320 is set at a 90° angle with the connecting end of the negative bent terminal 320. In one embodiment, the fixed mounting surface of the PCB circuit board 100 is parallel to the plug-in direction of the input end of the input power component.

[0047] It can be understood that since the fixed end of the positive bending terminal 310 and the connecting end form an angle of 90°, and the fixed end of the negative bending terminal 320 and the connecting end form an angle of 90°, the fixed end of the positive bending terminal 310 and the fixed end of the negative bending terminal 320 are also perpendicular to the PCB circuit board 100, respectively, so that the input end of the input power component and the positive bending terminal 310 and the negative bending terminal 320 can be plugged in without vertically installing the PCB circuit board 100; specifically, the fixed installation surface of the PCB circuit board 100 is parallel to the plug-in direction of the input end of the input power component, that is, the PCB circuit board 100 is horizontally installed in the power conversion cavity 201, which improves the space utilization rate of the power conversion cavity 201, so as to facilitate the flat design of the plug-in power adapter 10.

[0048] like Figures 1 to 5 As shown, in one embodiment, the fixed end of the positive bent terminal 310 and the fixed end of the negative bent terminal 320 are respectively welded to the PCB circuit board 100; the plug connector 300 also includes a fastening base 330, and the fastening base 300 is covered at the welding connection between the fixed end of the positive bent terminal 310 and the PCB circuit board 100, and the fastening base 330 is also covered at the welding connection between the fixed end of the negative bent terminal 320 and the PCB circuit board 100. It can be understood that the provision of the fastening base 330 effectively improves the structural stability of the connection end of the positive bent terminal 310 and the connection end of the negative bent terminal 320 respectively plugged with the input end of the input power component, and avoids the problem of excessive force at the bend of the connection end and the fixed end causing breakage or structural deformation.

[0049] like Figures 6 to 8As shown, in one embodiment, the inner side wall of the upper shell cover 210 is provided with a first buckle groove 2102 and a second buckle groove 2103, and the first buckle groove 2102 is arranged opposite to the second buckle groove 2103. The lower shell cover 220 is formed with a first undercut portion 2210 and a second undercut portion 2220, the first undercut portion 2210 extends to the first buckle groove 2102 and is buckled with the first buckle groove 2102, and the second undercut portion 2220 extends to the second buckle groove 2103 and is buckled with the second buckle groove 2103. It can be understood that by buckling the first undercut portion 2210 with the first buckle groove 2102 and the second undercut portion 2220 with the second buckle groove 2103, a stable and reliable snap-on connection between the upper shell cover 210 and the lower shell cover 220 is achieved. It is understandable that in other embodiments, the upper shell cover 210 and the lower shell cover 220 may also be connected by screw locking to improve the assembly efficiency of the plug-in power adapter 10 .

[0050] like Figure 1a , Figure 5 and Figure 6 As shown, in one embodiment, the upper shell cover 210 is formed with a first structural reinforcement portion 2110 and a second structural reinforcement portion 2120 on the inner side adjacent to the output plug port 202, and the lower shell cover 220 is formed with a third structural reinforcement portion 2230 and a fourth structural reinforcement portion 2240 on the inner side adjacent to the output plug port 202, and the first structural reinforcement portion 2110, the second structural reinforcement portion 2120, the third structural reinforcement portion 2230 and the fourth structural reinforcement portion 2240 together form a guide channel 203 connected to the output plug port 202, and the input end portion of the input power supply component is arranged in the guide channel 203. It can be understood that the input end of the input power component is inserted into the guide sliding channel 203 through the output plug interface 202, and the input end of the input power component is fixed and limited by the guide sliding channel 203, thereby enhancing the structural stability of the input end of the input power component being respectively connected with the positive bending terminal 310 and the negative bending terminal 320, thereby preventing the input end of the input power component from having unstable electrical connection.

[0051] like Figure 7 and Figure 8As shown, in one embodiment, the upper shell cover 210 is further provided with a first air-avoiding opening 2104, and the lower shell cover 220 is provided with a second air-avoiding opening 2202, and the first air-avoiding opening 2104 is connected with the second air-avoiding opening 2202 to form an input plug-in interface 204, and the input plug-in interface 204 is used to fix and install a power input plug-in, and the power input plug-in is electrically connected to the PCB circuit board 100. It can be understood that by setting the input plug-in interface 204 for installing the power input plug-in, one end of the power input line can be electrically connected to the power supply, and the other end of the power input line can be electrically connected to the input plug-in interface 204, so as to realize the conversion of AC power and DC power by the PCB circuit board 100.

[0052] Compared with the prior art, the present invention has at least the following advantages:

[0053] 1. The upper shell cover and the lower shell cover are quickly buckled and assembled, and then the input end of the output power cord assembly can be inserted from the output plug interface and the plug-in connector is plugged in, and the anti-dropout enclosure is abutted against the anti-dropout end of the output power cord assembly. In this way, the assembly sequence of the upper shell cover, the lower shell cover and the output power cord assembly is optimized, thereby effectively improving the overall assembly efficiency of the plug-in power adapter.

[0054] 2. It replaces the traditional method in which one end of the power output line is directly welded to the electrical connection structure of the PCB circuit board, and is plugged into the plug connector through the input end of the output power line assembly. In this way, when any structure of the output power line assembly or the plug connector is aged or damaged, it can be repaired in sections accordingly, thereby improving the maintainability and convenience of the plug-in power adapter.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A plug-in power adapter, comprising a PCB circuit board, wherein the PCB circuit board is used to be electrically connected to an output power line assembly, characterized in that: The plug-in power adapter also includes: A shell cover, the shell cover comprises an upper shell cover and a lower shell cover; the upper shell cover is buckled with the lower shell cover to form a power conversion cavity, the upper shell cover is provided with a first positioning port, the lower shell cover is provided with a second positioning port, the first positioning port is connected with the second positioning port to form an output plug interface, the output plug interface is used to insert the output power line assembly, the PCB circuit board is fixedly installed in the power conversion cavity, and an anti-slip enclosure is convexly provided on the inner wall of the power conversion cavity adjacent to the output plug interface; A plug connector is fixed to a portion of the PCB circuit board adjacent to the output plug interface so that the input end of the output power cord assembly is plugged into the plug connector after being inserted into the output plug interface; the anti-slip enclosure is used to abut against the anti-slip end of the output power cord assembly after the output power cord assembly is inserted into the output plug interface.

2. The plug-in power adapter according to claim 1, characterized in that: The plug connector includes a positive bent terminal and a negative bent terminal; The plug-in power adapter also includes a conversion assembly, which includes a positioning enclosure, which is plugged and installed on the input end of the output power cord assembly, and the positioning enclosure is provided with a positive connection positioning hole and a negative connection positioning hole, the positive connection positioning hole is arranged corresponding to the connection end of the positive bending terminal, and the negative connection positioning hole is arranged corresponding to the connection end of the negative bending terminal.

3. The plug-in power adapter according to claim 2, characterized in that: The adapter assembly also includes a positive metal adapter and a negative metal adapter; a first connection slot is provided at one end of the positive metal adapter, and the first connection slot is used to be fixedly connected to the positive wire of the output power cord assembly; a second connection slot is provided at one end of the negative metal adapter, and the first connection slot is used to be fixedly connected to the positive wire of the output power cord assembly; the positive metal adapter is arranged in the positive connection positioning hole, and the negative metal adapter is arranged in the negative connection positioning hole.

4. The plug-in power adapter according to claim 3, characterized in that: A positive electrode jack connected to the first connection slot is provided on one side of the positioning enclosure adjacent to the positive bending terminal, and a negative electrode jack connected to the second connection slot is provided on one side of the positioning enclosure adjacent to the negative bending terminal; the connection end of the positive bending terminal is passed through the positive electrode jack and elastically plugged into the other end of the positive metal adapter, and the connection end of the negative bending terminal is passed through the negative electrode jack and elastically plugged into the other end of the negative metal adapter.

5. The plug-in power adapter according to claim 2, characterized in that: The fixed end of the positive bent terminal and the connecting end of the positive bent terminal are arranged at an angle of 90°, and the fixed end of the negative bent terminal and the connecting end of the negative bent terminal are arranged at an angle of 90°.

6. The plug-in power adapter according to claim 1, characterized in that: The fixed installation surface of the PCB circuit board is parallel to the plugging direction of the input end of the output power line assembly.

7. The plug-in power adapter according to claim 2, characterized in that: The fixed end of the positive bent terminal and the fixed end of the negative bent terminal are respectively welded to the PCB circuit board; the plug connector also includes a fastening base, which covers the welding connection between the fixed end of the positive bent terminal and the PCB circuit board, and the fastening base also covers the welding connection between the fixed end of the negative bent terminal and the PCB circuit board.

8. The plug-in power adapter according to claim 1, characterized in that: The inner side wall of the upper shell cover is provided with a first buckle groove and a second buckle groove, and the first buckle groove is arranged opposite to the second buckle groove; The lower shell cover is formed with a first undercut portion and a second undercut portion, the first undercut portion extends to the first buckle groove and is buckled with the first buckle groove, and the second undercut portion extends to the second buckle groove and is buckled with the second buckle groove.

9. The plug-in power adapter according to claim 7, characterized in that: The upper shell cover is formed with a first structural reinforcement portion and a second structural reinforcement portion on the inner side adjacent to the output plug interface, and the lower shell cover is formed with a third structural reinforcement portion and a fourth structural reinforcement portion on the inner side adjacent to the output plug interface. The first structural reinforcement portion, the second structural reinforcement portion, the third structural reinforcement portion and the fourth structural reinforcement portion together form a guide sliding channel connected to the output plug interface, and the input end portion of the output power cord assembly is arranged in the guide sliding channel.

10. The plug-in power adapter according to claim 9, characterized in that: The connection end of the positive bent terminal and the connection end of the negative bent terminal both extend to the other end of the guide channel; and / or, The upper shell cover is also provided with a first air avoidance opening, and the lower shell cover is provided with a second air avoidance opening, the first air avoidance opening is connected with the second air avoidance opening to form an input plug interface, and the input plug interface is used to fix and install a power input plug-in, and the power input plug-in is electrically connected to the PCB circuit board.

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