Modular converter structure and socket

Abstract

The utility model provides a modular converter structure and a socket, the modular converter structure comprises a shell and a first metal sheet, a second metal sheet and a third metal sheet which are limited in the shell, the shell comprises an inner frame, a first side frame and a second side frame, and the first side frame and the second side frame are arranged on the left side and the right side of the inner frame respectively; the inner frame, the first side frame and the second side frame are connected in a clamped mode, and the top of the shell is provided with an avoiding groove used for containing an electric device. According to the modular converter structure, the number of module plastic parts is small, the mold cost is reduced, and the material cost is reduced; the inner frame, the first side frame and the second side frame are clamped and locked, clamping connection and assembly are convenient, and the assembly efficiency is improved. Besides, by optimizing the shape of the modular converter structure, the top of the shell is provided with an avoiding groove for placing an electric device, so that the internal layout of the socket is compact.

Description

Technical Field

[0001] The present application belongs to the technical field of sockets, and more specifically, to a modular converter structure and a socket. Background Art

[0002] In order to enable the conversion socket to simultaneously receive the plugs of multiple electronic products without occupying too much space, the existing multi-position conversion socket has plugging positions on multiple sides of its housing to receive the pins of the plugs respectively.

[0003] Existing multi-position conversion sockets generally include a shell and a modular converter structure, wherein the lower side of the shell is provided with pin through holes, and at least two sides of the upper side, left side, right side, front side and rear side are provided with jack panels, and each jack panel is provided with a jack group (each jack group consists of two or three jacks).

[0004] The existing modular converter structure has too many modular plastic parts, which increases mold costs, increases material costs, and reduces production efficiency; the plastic parts are usually connected by screws or bolts, resulting in low assembly efficiency. Summary of the invention

[0005] The purpose of the present application is to provide a modular converter structure and a socket to solve the technical problem of relatively low assembly efficiency of the existing modular converter structure in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a modular converter structure, including a shell and a first metal sheet, a second metal sheet and a third metal sheet limited in the shell, the shell includes an inner frame, a first side frame and a second side frame, the first side frame and the second side frame are respectively arranged on the left and right sides of the inner frame, the inner frame, the first side frame and the second side frame are connected by snap-fitting, and the top of the shell is provided with an avoidance groove for placing electrical components.

[0007] Optionally, the bottom of the first side frame is connected to the inner frame by snap-jointing, the top of the first side frame is connected to the second side frame by snap-jointing; and the bottom of the second side frame is connected to the inner frame by snap-jointing.

[0008] Optionally, a first female buckle is arranged on the inner side surface of the first side frame near the bottom, and there is one first female buckle, or there are more than two first female buckles and they are distributed along the length direction of the first side frame; a first male buckle is arranged on the inner frame, and each first female buckle corresponds to one first male buckle; a second female buckle is arranged on the top of the first side frame, and the second female buckle is arranged on one side of the first side frame, and the second female buckle extends toward the direction of the second side frame, and a second male buckle is arranged on the second side frame, and there are more than one second female buckle and each second female buckle corresponds to one second male buckle.

[0009] Optionally, a third female buckle is arranged on the side of the inner frame facing the second side frame, the third female buckle is close to the bottom of the inner frame, there is one third female buckle, or there are more than two third female buckles and they are distributed along the length direction of the inner frame; a third male buckle is arranged on the second side frame, and each of the third female buckles corresponds to one third male buckle.

[0010] Optionally, the first metal sheet, the second metal sheet and the third metal sheet are respectively a fire copper sleeve, a ground copper sleeve and a zero copper sleeve, and the first metal sheet, the second metal sheet and the third metal sheet are assembled on the inner frame through positioning grooves and positioning ribs on the inner frame; the first metal sheet is assembled on a side of the inner frame close to the first side frame, and the second metal sheet and the third metal sheet are assembled on a side of the inner frame close to the second side frame; the shell is respectively formed with a socket group on the front and rear sides along the length direction of the inner frame.

[0011] Optionally, the first metal sheet includes a first plug mating end, a first intermediate connecting portion and a first downward extending portion, wherein the first intermediate connecting portion has a first upper connecting portion bent upward at one end and a first lower connecting portion bent downward at the other end, the first upper connecting portion and the first lower connecting portion are both connected to the first plug mating end, the first lower connecting portion is connected to the first lower extending portion, and a through hole is arranged on the first downward extending portion.

[0012] Optionally, the second metal sheet includes a second plug mating end, a second intermediate connecting portion and a second downward extending portion, two second plug mating ends are respectively connected to two sides of the second intermediate connecting portion, the second plug mating end is inclined from top to bottom from the free end to the two ends connected to the second intermediate connecting portion, the second downward extending portion is connected to the second plug mating end, and a through hole is arranged on the second downward extending portion; the third metal sheet includes a third plug mating end, a third intermediate connecting portion and a third downward extending portion, one end of the third intermediate connecting portion has a third upper connecting portion bent upward, and the other end has a third lower connecting portion bent downward, the third upper connecting portion and the third lower connecting portion are both connected to the third plug mating end, the third lower connecting portion is connected to the third lower extending portion, and a through hole is arranged on the third downward extending portion.

[0013] Optionally, the top surface of the shell is a structure with a bottom in the middle and high sides to form the avoidance groove.

[0014] The present application provides a socket, in which the above-mentioned modular converter structure is arranged.

[0015] Optionally, the socket includes an upper shell, a lower shell, a first circuit board, a power socket, an overload protector, a first charging module and a second charging module. The upper shell is arranged on the lower shell and a accommodating cavity is formed between the two. The overload protector, the power socket and the modular converter structure are connected to the first circuit board, the first charging module is connected to the first circuit board and the second charging module, the overload protector is arranged in the avoidance groove of one of the modular converter structures, and the second charging module is arranged in another of the modular converter structures.

[0016] The beneficial effects of the present application are as follows: compared with the prior art, the modular converter structure provided by the present application has fewer plastic parts for the module, reduces mold costs, and reduces material costs; the inner frame, the first side frame, and the second side frame are locked and fastened, and the clamping connection is convenient for assembly, thereby improving assembly efficiency. In addition, by optimizing the shape of the modular converter structure, a avoidance groove for placing electrical components is provided on the top of the shell, making the internal layout of the socket compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the structure of the socket provided in the embodiment of the present application Figure 1 ;

[0019] Figure 2 A schematic diagram of the structure of the socket provided in the embodiment of the present application Figure 2 ;

[0020] Figure 3 A schematic diagram of the internal structure of a socket provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of a modular converter structure provided in an embodiment of the present application Figure 1 ;

[0022] Figure 5 A schematic diagram of a modular converter structure provided in an embodiment of the present application Figure 2 ;

[0023] Figure 6 A schematic diagram of a modular converter structure provided in an embodiment of the present application Figure 3 ;

[0024] Figure 7A schematic diagram of the structure in which the first metal sheet (copper sleeve) provided in the embodiment of the present application is assembled in the housing;

[0025] Figure 8 A schematic diagram of the structure in which the second metal sheet (ground copper sleeve) and the third metal sheet (zero copper sleeve) provided in the embodiment of the present application are assembled in the housing;

[0026] Fig. 9 An exploded structural diagram of a modular converter structure provided in an embodiment of the present application;

[0027] Fig.10 A schematic diagram of the structure of the first metal sheet (copper sleeve) provided in an embodiment of the present application;

[0028] Fig.11 A schematic diagram of the structure of the second metal sheet (ground copper sleeve) provided in an embodiment of the present application;

[0029] Fig.12 A schematic diagram of the structure of the third metal sheet (zero copper sleeve) provided in an embodiment of the present application.

[0030] Among them, the reference numerals in the figure are:

[0031] 1- socket;

[0032] 11-modular converter structure; 12-upper housing; 13-lower housing; 14-first circuit board; 15-power socket; 16-overload protector; 17-first charging module; 18-second charging module; 19-USB charging socket; 110-socket jack group;

[0033] 111-housing; 112-first metal sheet; 113-second metal sheet; 114-third metal sheet; 115-jack group; 116-avoidance groove;

[0034] 1111-inner frame; 1112-first side frame; 1113-second side frame; 1114-first female buckle; 1115-first male buckle; 1116-second female buckle; 1117-second male buckle; 1118-third female buckle; 1119-third male buckle; 11110-positioning rib;

[0035] 1121 - first plug mating end; 1122 - first middle connecting portion; 1123 - first downwardly extending portion; 1124 - first upper connecting portion; 1125 - first lower connecting portion;

[0036] 1131 - second plug mating end; 1132 - second intermediate connecting portion; 1133 - second downwardly extending portion;

[0037] 1141 - third plug mating end; 1142 - third middle connecting portion; 1143 - third downward extending portion; 1144 - third upper connecting portion; 1145 - third lower connecting portion. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] Please also read Figure 1-Figure 12 , the modular converter structure 11 and the socket 1 provided in the embodiment of the present application are now described.

[0043] See also Figure 4-Figure 9 A modular converter structure 11 includes a shell 111, and a first metal sheet 112, a second metal sheet 113 and a third metal sheet 114 limited in the shell 111, the shell 111 includes an inner frame 1111, a first side frame 1112 and a second side frame 1113, the first side frame 1112 and the second side frame 1113 are respectively arranged on the left and right sides of the inner frame 1111, the inner frame 1111, the first side frame 1112 and the second side frame 1113 are connected by snap-fitting, and a avoidance groove 116 for placing electrical components is arranged on the top of the shell 111.

[0044] The modular converter structure 11 provided in this embodiment, the shell 111 includes an inner frame 1111, a first side frame 1112 and a second side frame 1113, the module has fewer plastic parts, and the mold cost and material cost are reduced; the inner frame 1111, the first side frame 1112 and the second side frame 1113 are snap-connected and locked, and the snap-connection is convenient for assembly, thereby improving assembly efficiency.

[0045] By rationally arranging and optimizing the shape of the modular converter structure 11 , a relief groove 116 for placing electrical components is provided on the top of the inner frame 1111 , so that the internal layout of the socket 1 is compact.

[0046] The first metal sheet 112, the second metal sheet 113 and the third metal sheet 114 are connected to the circuit board in the socket 1. The number of modular converters can be increased on the circuit board according to actual needs, thereby increasing the jack group 115. The modularization of the components in the socket 1 can reduce the assembly steps and assembly difficulty, and improve assembly efficiency.

[0047] In one embodiment, the bottom of the first side frame 1112 is snap-connected with the inner frame 1111, and the top of the first side frame 1112 is snap-connected with the second side frame 1113; the bottom of the second side frame 1113 is snap-connected with the inner frame 1111, so that the structure is stable while the inner frame 1111, the first side frame 1112 and the second side frame 1113 are snap-connected. Of course, the bottom of the first side frame 1112 can also be snap-connected with the inner frame 1111, and the bottom of the second side frame 1113 can be snap-connected with the inner frame 1111. As long as the inner frame 1111, the first side frame 1112 and the second side frame 1113 are snap-connected, it is within the protection scope of this application.

[0048] Regarding the clamping connection between the bottom of the first side frame 1112 and the inner frame 1111, in one embodiment, see Figure 6 A first female buckle 1114 is disposed on the inner side surface of the first side frame 1112 near the bottom. There is one first female buckle 1114, or there are more than two first female buckles 1114 and they are distributed along the length direction of the first side frame 1112. A first male buckle 1115 is disposed on the inner frame 1111. Each first female buckle 1114 corresponds to a first male buckle 1115. The first male buckle 1115 and the first female buckle 1114 fix the first side frame 1112 and the bottom of the inner frame 1111. The structure is simple and easy to process. For the length direction of the first side frame 1112, see Figure 6, is the front-to-back direction of the modular converter structure 11 in the figure. Preferably, two first female buckles 1114 are arranged on the first side frame 1112, and the two first female buckles 1114 are respectively close to the two ends of the first side frame 1112 along the length direction, so as to simplify the structure on the basis of ensuring the stable connection between the first side frame 1112 and the inner frame 1111. The first female buckle 1114 extends in the direction of the inner frame 1111, and a snap-on protrusion is arranged on the first female buckle 1114. The first male buckle 1115 is a snap-on protrusion arranged on the bottom surface of the inner frame 1111, and the first female buckle 1114 is snap-on to the first male buckle 1115 through the elastic deformation of the first female buckle 1114. In addition, the first male buckle 1115 can also be arranged on the first side frame 1112, and the first female buckle 1114 can be arranged on the inner frame 1111, so as to realize the snap-on connection between the bottom of the first side frame 1112 and the inner frame 1111.

[0049] Regarding the snap connection between the first side frame 1112 and the second side frame 1113, in one embodiment, see Figure 5 The top of the first side frame 1112 is provided with a second female buckle 1116, which is provided on one side of the first side frame 1112, and the second female buckle 1116 extends in the direction of the second side frame 1113. The second male buckle 1117 is provided on the second side frame 1113, and there are more than one second female buckle 1116, and each second female buckle 1116 corresponds to a second male buckle 1117. The second male buckle 1117 and the second female buckle 1116 fix the first side frame 1112, the second side frame 1113 and the top of the inner frame 1111, and the structure is simple and easy to process. Preferably, there are two second female buckles 1116, and the two second female buckles 1116 are respectively provided on both sides of the first side frame 1112 to avoid the avoidance groove 116 on the shell 111. The second female buckle 1116 extends toward the second side frame 1113, and a buckle hole is provided on the second female buckle 1116. A second male buckle 1117 is provided on the top surface of the second side frame 1113. The second male buckle 1117 is a buckle protrusion, and the second male buckle 1117 is inserted into the buckle hole in the second female buckle 1116 to achieve the snap connection between the first side frame 1112 and the second side frame 1113. In addition, the second male buckle 1117 may be provided on the first side frame 1112, and the second female buckle 1116 may be provided on the second side frame 1113 to achieve the snap connection between the first side frame 1112 and the second side frame 1113.

[0050] Regarding the snap-fit ​​connection between the second side frame 1113 and the inner frame 1111, in one embodiment, see Figure 5A third female buckle 1118 is arranged on the side of the inner frame 1111 facing the second side frame 1113. The third female buckle 1118 is close to the bottom of the inner frame 1111. There is one third female buckle 1118, or there are more than two third female buckles 1118 and they are distributed along the length direction of the inner frame 1111. A third male buckle 1119 is arranged on the second side frame 1113. Each third female buckle 1118 corresponds to a third male buckle 1119. The third male buckle 1119 and the third female buckle 1118 realize the fixation of the second side frame 1113 and the bottom of the inner frame 1111, and the structure is simple and easy to process. For the length direction of the inner frame 1111, see Figure 5 , is the front-to-back direction of the modular converter structure 11 in the figure. Preferably, two third female buckles 1118 are provided on the inner frame 1111, and the two third female buckles 1118 are respectively close to the two ends of the inner frame 1111 along the length direction, so as to simplify the structure on the basis of ensuring the stable connection between the second side frame 1113 and the inner frame 1111. The third female buckle 1118 extends in the direction of the second side frame 1113, and a snap-on protrusion is provided on the third female buckle 1118. The third male buckle 1119 is a snap-on protrusion provided on the bottom surface of the second side frame 1113, and the third female buckle 1118 is snap-on on the third male buckle 1119 through the elastic deformation of the third female buckle 1118. In addition, the third male buckle 1119 can also be provided on the inner frame 1111, and the third female buckle 1118 can be provided on the second side frame 1113, so as to realize the snap-on connection between the bottom of the second side frame 1113 and the inner frame 1111.

[0051] The first metal sheet 112, the second metal sheet 113 and the third metal sheet 114 are respectively a hot copper sleeve, a ground copper sleeve and a zero copper sleeve. In one embodiment, the first metal sheet 112, the second metal sheet 113 and the third metal sheet 114 are assembled on the inner frame 1111 through the positioning grooves and the positioning ribs 11110 on the inner frame 1111; the shell 111 is respectively formed with a socket group 115 on the front and rear sides along the length direction of the inner frame 1111. Figure 5 , schematically showing that a jack group 115 is provided on the front side of the shell 111 , and a jack group 115 is also provided on the rear side of the shell 111 .

[0052] See also Figure 7 , schematically shows that the first metal sheet 112 is assembled on the inner frame 1111, and the first metal sheet 112 is a copper sleeve assembled in the positioning groove on the inner frame 1111. Figure 8 , illustrating that the second metal sheet 113 and the third metal sheet 114 are assembled on the inner frame 1111. The second metal sheet 113 and the third metal sheet 114 are the ground copper sleeve and the zero copper sleeve respectively, which are assembled in the positioning grooves on the inner frame 1111. Figure 8 In the figure, the positioning rib 11110 is schematically shown, and the positioning rib 11110 passes through the positioning hole on the second metal sheet 113 or the third metal sheet 114 to achieve positioning installation.

[0053] The assembly sequence of the modular converter structure 11 is as follows: Fig. 9 , assemble the zero copper sleeve and the ground copper sleeve to the corresponding positioning groove on one side of the inner frame 1111, install the second side frame 1113, and lock the inner frame 1111 with the second side frame 1113 bracket by snapping; assemble the fire copper sleeve to the corresponding positioning groove on the other side of the inner frame 1111, install the first side frame 1112, and lock the inner frame 1111 with the first side frame 1112 bracket by snapping, and complete the assembly of the modular converter structure 11. The modular converter structure 11 provided in this embodiment has the advantages of low mold cost, low material cost, and high assembly efficiency.

[0054] Regarding the shape of the first metal sheet 112 (copper sleeve), in one embodiment, see Fig.10 The first metal sheet 112 is assembled on one side of the inner frame 1111 close to the first side frame 1112; the first metal sheet 112 includes a first plug mating end 1121, a first intermediate connecting portion 1122 and a first downwardly extending portion 1123. One end of the first intermediate connecting portion 1122 has a first upper connecting portion 1124 bent upward, and the other end has a first lower connecting portion 1125 bent downward. The first upper connecting portion 1124 and the first lower connecting portion 1125 are both connected with the first plug mating end 1121, the first lower connecting portion 1125 is connected with the first lower extending portion, and a through hole is provided on the first downwardly extending portion 1123. The shape of the first metal sheet 112 matches the shape of the housing 111 of the modular converter structure 11, and the first metal sheet 112 includes two first plug mating ends 1121 to match the modular converter structure 11 to form two jack groups 115. The first downwardly extending portion 1123 is provided with an opening, and the first downwardly extending portion 1123 can be connected to the circuit board by sampling welding.

[0055] Regarding the shape of the second metal sheet 113 (ground copper sleeve), in one embodiment, see Fig.11The second metal sheet 113 includes a second plug mating end 1131, a second intermediate connecting portion 1132 and a second downward extending portion 1133. Two second plug mating ends 1131 are connected to the two sides of the second intermediate connecting portion 1132 respectively. The second plug mating end 1131 is tilted from top to bottom from the free end to the two ends connected to the second intermediate connecting portion 1132. The second downward extending portion 1133 is connected to the second plug mating end 1131. A through hole is provided on the second downward extending portion 1133. The shape of the second metal sheet 113 matches the shape of the housing 111 of the modular converter structure 11, and the second metal sheet 113 includes two second plug mating ends 1131 to match the modular converter structure 11 to form two jack groups 115. The second downward extending portion 1133 is provided with an opening, and the second downward extending portion 1133 can be connected to the circuit board in a sampling welding manner.

[0056] Regarding the shape of the third metal sheet 114 (zero copper sleeve), in one embodiment, see Fig.12 The third metal sheet 114 includes a third plug mating end 1141, a third intermediate connection portion 1142 and a third downward extension portion 1143. The third intermediate connection portion 1142 has a third upper connection portion 1144 bent upward at one end and a third lower connection portion 1145 bent downward at the other end. The third upper connection portion 1144 and the third lower connection portion 1145 are both connected with the third plug mating end 1141. The third lower connection portion 1145 is connected with the third lower extension portion. The third downward extension portion 1143 is provided with a through hole. The shape of the third metal sheet 114 matches the shape of the housing 111 of the modular converter structure 11, and the third metal sheet 114 includes two third plug mating ends 1141 to match the modular converter structure 11 to form two jack groups 115. The third downward extension portion 1143 is provided with an opening, and the third downward extension portion 1143 can be connected to the circuit board by welding.

[0057] Regarding the avoidance groove 116, in one embodiment, the top surface of the housing 111 is a structure with a bottom in the middle and high sides to form the avoidance groove 116. Figure 4 , schematically showing the avoidance groove 116. The top surface of the shell 111 has a square groove in the middle and inclined surfaces on both sides to form the avoidance groove 116. The top surfaces of the inner frame 1111, the first side frame 1112 and the second side frame 1113 are all in the shape of "a square groove in the middle and inclined surfaces on both sides", and the top surfaces of the inner frame 1111, the first side frame 1112 and the second side frame 1113 form the avoidance groove 116. By setting the avoidance groove 116, the volume of the modular converter structure 11 is reduced without affecting the function of the modular converter structure 11, so as to facilitate the compact layout of the electrical components in the socket 1.

[0058] See also Figure 1-Figure 3, a socket 1, in which more than one modular converter structure 11 provided by the embodiment of the present application is arranged. That is, one modular converter structure 11 can be arranged in the socket 1, and of course, more than two can also be arranged, that is, the number of modular converter structures 11 is reasonably set according to the number of jack groups 115. The modular converter structure can reduce assembly steps and assembly difficulty, and improve assembly efficiency.

[0059] Regarding the socket 1, in one embodiment, see Figure 2 and 3 The socket 1 includes an upper shell 12, a lower shell 13, a first circuit board 14, a power socket 15, an overload protector 16, a first charging module 17 and a second charging module 18. The upper shell 12 is arranged on the lower shell 13 and a accommodating cavity is formed therebetween. The overload protector 16, the power socket 15 and the modular converter structure 11 are connected to the first circuit board 14. The first charging module 17 is connected to the first circuit board 14 and the second charging module 18. The overload protector 16 is arranged in the avoidance groove 116 of one of the modular converter structures 11, and the second charging module 18 is arranged in another modular converter structure 11.

[0060] See also Figure 2 Two socket jack groups 110 are arranged on each of the two opposite sides of the upper shell 12, and a plurality of USB charging sockets 19 are arranged on the top of the upper shell 12. The first charging module 17 is a circuit board, and an electronic wire is connected to the first charging module 17 and the first circuit board 14, and an electronic wire is connected between the first charging module 17 and the second charging module 18. In addition, a lightning protection function can be arranged on the first circuit board 14, and an indicator light can be arranged on the top surface of the upper shell 12.

[0061] In addition, the socket 1 provided in this embodiment may be a conversion socket 1 of specifications such as American standards, Chinese standards, British standards, or European standards.

[0062] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A modular converter structure, comprising a housing and a first metal sheet, a second metal sheet and a third metal sheet confined in the housing, characterized in that: The shell includes an inner frame, a first side frame and a second side frame, the first side frame and the second side frame are respectively arranged on the left and right sides of the inner frame, the inner frame, the first side frame and the second side frame are connected by snap-fitting, and a avoidance groove for placing electrical components is arranged on the top of the shell.

2. The modular converter structure according to claim 1, characterized in that: The bottom of the first side frame is connected to the inner frame by clamping, the top of the first side frame is connected to the second side frame by clamping; the bottom of the second side frame is connected to the inner frame by clamping.

3. The modular converter structure according to claim 2, characterized in that: A first female buckle is disposed on the inner side surface of the first side frame near the bottom, and there is one first female buckle, or there are more than two first female buckles distributed along the length direction of the first side frame; a first male buckle is disposed on the inner frame, and each first female buckle corresponds to one first male buckle; A second female buckle is arranged on the top of the first side frame, the second female buckle is arranged on one side of the first side frame, the second female buckle extends toward the second side frame, a second male buckle is arranged on the second side frame, there are more than one second female buckle and each second female buckle corresponds to one second male buckle.

4. The modular converter structure according to claim 2, characterized in that: A third female buckle is arranged on the side of the inner frame facing the second side frame, and the third female buckle is close to the bottom of the inner frame. There is one third female buckle, or there are more than two third female buckles and they are distributed along the length direction of the inner frame. A third male buckle is arranged on the second side frame, and each of the third female buckles corresponds to one third male buckle.

5. The modular converter structure according to claim 1, characterized in that: The first metal sheet, the second metal sheet and the third metal sheet are respectively a fire copper sleeve, a ground copper sleeve and a zero copper sleeve, and the first metal sheet, the second metal sheet and the third metal sheet are assembled on the inner frame through positioning grooves and positioning ribs on the inner frame; the first metal sheet is assembled on a side of the inner frame close to the first side frame, and the second metal sheet and the third metal sheet are assembled on a side of the inner frame close to the second side frame; the shell is respectively formed with a socket group on the front and rear sides along the length direction of the inner frame.

6. The modular converter structure according to claim 1 or 5, characterized in that: The first metal sheet includes a first plug mating end, a first middle connecting portion and a first downward extending portion, wherein the first middle connecting portion has a first upper connecting portion bent upward at one end and a first lower connecting portion bent downward at the other end, the first upper connecting portion and the first lower connecting portion are both connected to the first plug mating end, the first lower connecting portion is connected to the first lower extending portion, and a through hole is arranged on the first downward extending portion.

7. The modular converter structure according to claim 1 or 5, characterized in that: The second metal sheet comprises a second plug mating end, a second middle connecting portion and a second downward extending portion, two sides of the second middle connecting portion are respectively connected to two second plug mating ends, the second plug mating ends are arranged obliquely from top to bottom from the free end to the two ends connected to the second middle connecting portion, the second downward extending portion is connected to the second plug mating end, and a through hole is arranged on the second downward extending portion; The third metal sheet includes a third plug mating end, a third intermediate connecting portion and a third downward extending portion, wherein the third intermediate connecting portion has a third upper connecting portion bent upward at one end and a third lower connecting portion bent downward at the other end, the third upper connecting portion and the third lower connecting portion are both connected to the third plug mating end, the third lower connecting portion is connected to the third lower extending portion, and a through hole is arranged on the third downward extending portion.

8. The modular converter structure according to claim 1, characterized in that: The top surface of the shell is a structure with a bottom in the middle and high sides for forming the avoidance groove.

9. A socket, characterized in that: A modular converter structure as described in any one of claims 1 to 8 is arranged in the socket.

10. The socket according to claim 9, characterized in that: The socket includes an upper shell, a lower shell, a first circuit board, a power socket, an overload protector, a first charging module and a second charging module. The upper shell is arranged on the lower shell and a accommodating cavity is formed between the two. The overload protector, the power socket and the modular converter structure are connected to the first circuit board. The first charging module is connected to the first circuit board and the second charging module. The overload protector is arranged in the avoidance groove of one of the modular converter structures, and the second charging module is arranged in another of the modular converter structures.

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