CN218569865U

CN218569865U - Charging unit

Info

Publication number: CN218569865U
Application number: CN202222439073.3U
Authority: CN
Inventors: 陈小玲
Original assignee: Shenzhen Zhiyou Precise Electronics Co ltd
Current assignee: Shenzhen Zhiyou Precise Electronics Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-03-03
Anticipated expiration: 2032-09-14

Abstract

The utility model belongs to the technical field of charging equipment, and relates to a charger, which comprises a shell, wherein a circuit board and a mounting seat are arranged in the shell, a positive electrode and a negative electrode are arranged on the circuit board, and a rotating shaft, a positive connecting component and a negative connecting component are arranged on the mounting seat; the two folding legs are connected with the rotating shaft and are rotatably arranged on the shell through the rotating shaft, one folding leg is electrically connected with the positive electrode through the positive electrode connecting component, and the other folding leg is electrically connected with the negative electrode through the negative electrode connecting component; the positioning cover is matched with the mounting seat and covers the mounting seat, and an accommodating cavity capable of accommodating the rotating shaft, the positive connecting assembly and the negative connecting assembly is formed between the positioning cover and the mounting seat; the positioning cover is provided with a first positioning structure and a second positioning structure, the first positioning structure is used for rotating the folding foot to the charging position to be positioned, and the second positioning structure is used for positioning the positive connecting assembly and the negative connecting assembly. The charger has a compact integral structure and occupies a small space.

Description

Charging device

Technical Field

The utility model relates to a battery charging outfit technical field especially relates to a charger.

Background

The charger with the rotatable folding legs is popular in the market, the two folding legs can be rotated and folded and are contained in the shell, and the charger has the advantages of protecting the folding legs and being easy to contain, small in occupied space and convenient to carry.

In the related art, two folding legs are rotatably disposed in the housing through a connecting block, and the two folding legs are electrically connected to corresponding positive and negative electrodes on the circuit board through an electrical connector, respectively. An engineer needs to design a plurality of positioning pieces to position the rotating block and the two electric connecting pieces respectively, and the overall structure occupies a large space.

There is a need to develop a charger with a compact structure and a small occupied space.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a compact structure, less charger of occupation space.

In order to solve the technical problem, an embodiment of the utility model provides a charger has adopted following technical scheme:

the charger comprises a shell, wherein a circuit board and a mounting seat are arranged in the shell, a positive electrode and a negative electrode are arranged on the circuit board, and a rotating shaft, a positive connecting assembly and a negative connecting assembly are arranged on the mounting seat; the two folding legs are connected with the rotating shaft and are rotatably arranged on the shell through the rotating shaft, one folding leg is electrically connected with the positive electrode through the positive electrode connecting component, and the other folding leg is electrically connected with the negative electrode through the negative electrode connecting component; the positioning cover is matched with the mounting seat and covers the mounting seat, and an accommodating cavity capable of accommodating the rotating shaft, the positive connecting assembly and the negative connecting assembly is formed between the positioning cover and the mounting seat; the utility model discloses a folding foot charging device, including folding foot, positive coupling assembling with negative coupling assembling fixes a position, be equipped with first location structure and second location structure on the location is covered, first location structure is used for right folding foot rotates to the position of charging and fixes a position, second location structure is used for right positive coupling assembling with negative coupling assembling fixes a position.

In some embodiments, the first positioning structure includes a positioning protrusion and a positioning groove, the positioning protrusion is disposed on the rotating shaft, the positioning groove is disposed on the positioning cover, and the positioning protrusion slides into the positioning groove and is matched with the positioning groove to position the folding foot to rotate to the charging position.

In some embodiments, the positioning cover includes a cover body and a positioning elastic sheet, the cover body is provided with an avoiding groove, the positioning elastic sheet is connected with the cover body and arranged in the avoiding groove, and the positioning groove is arranged on the positioning elastic sheet.

In some embodiments, the positive connection assembly is provided with a positive connection end, the negative connection assembly is provided with a negative connection end, the positive connection end and the negative connection end are arranged on the same side of the folding leg side by side, the positive electrode and the negative electrode are arranged on the circuit board side by side, the positive electrode is electrically connected with the positive connection end, and the negative electrode is electrically connected with the negative connection end.

In some preferred embodiments, a first bending portion is disposed on the positive electrode connecting assembly to form a positive electrode connecting end, a second bending portion is disposed on the negative electrode connecting assembly to form a negative electrode connecting end, the first bending portion and the second bending portion are disposed side by side, the circuit board is vertically disposed on the mounting base, the positive electrode is inserted into the first bending portion and electrically connected to the first bending portion, and the negative electrode is inserted into the second bending portion and electrically connected to the second bending portion.

In a preferred aspect of some embodiments, the positive electrode connection assembly includes a first positive electrode connection member and a second positive electrode connection member disposed perpendicular to the first positive electrode connection member, the first positive electrode connection member is electrically connected to one of the folding legs, the positive electrode connection end is disposed on the second positive electrode connection member, and the second positive electrode connection member is electrically connected to the first positive electrode connection member and is electrically connected to the positive electrode through the positive electrode connection end.

In some embodiments, a first bearing table and a first limiting groove are arranged on the mounting seat, the height of the first bearing table is higher than that of the bottom wall of the first limiting groove, the first positive connecting piece is arranged on the first bearing table, and the second positive connecting piece is positioned in the first limiting groove and is abutted against and electrically connected with the first positive connecting piece.

In a preferred aspect of some embodiments, the negative electrode connection assembly includes a first negative electrode connection member and a second negative electrode connection member disposed perpendicular to the first negative electrode connection member, the first negative electrode connection member is electrically connected to the other folding leg, the negative electrode connection end is disposed on the second negative electrode connection member, and the second negative electrode connection member is electrically connected to the first negative electrode connection member and is electrically connected to the positive electrode through the negative electrode connection end.

In some embodiments, a second bearing table and a second limiting groove are arranged on the mounting seat, the height of the second bearing table is higher than that of the bottom wall of the second limiting groove, the first negative connecting piece is arranged on the second bearing table, and the second negative connecting piece is positioned in the second limiting groove and is abutted against and electrically connected with the first negative connecting piece.

In some embodiments, the second positioning structure includes a positioning protrusion, a first positioning hole and a second positioning hole, the positioning protrusion is located on the mounting seat, the first positioning hole is located on the positioning cover, the second positioning hole is located on the positive connecting component and the negative connecting component, the positioning protrusion is matched with the first positioning hole and the second positioning hole to be arranged, and the positioning protrusion is used for positioning the positive connecting component and the negative connecting component.

Compared with the prior art, the embodiment of the utility model provides a charger mainly has following beneficial effect:

this charger is through setting up circuit board and mount pad in the casing, forms the chamber that holds that can hold pivot, anodal coupling assembling and negative pole coupling assembling between mount pad and the location lid, and the location is covered and is set up first location structure and second location structure, and first location structure is used for rotating folding foot to the position of charging and fix a position, and second location structure is used for anodal coupling assembling with negative pole coupling assembling advances line location to the realization holds and fixes a position pivot, anodal coupling assembling and negative pole coupling assembling through the location lid with the mount pad cooperation, and overall structure is compact, occupies less space. The folding thin volume of the charger is small, the occupied space is small, and the volume can be one half smaller than that of other power supply folding mechanisms with the same power section; the power may be made larger relative to the same volume of the housing.

Drawings

In order to illustrate the solution of the present invention more clearly, the drawings needed for describing the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. Wherein:

fig. 1 is a schematic perspective view of a charger of the present invention;

fig. 2 is a schematic perspective view of the charger (without housing) of the present invention;

FIG. 3 is an exploded view of the charger of FIG. 1;

FIG. 4 is a schematic perspective view of the charger (without a circuit board) of FIG. 2;

FIG. 5 is a schematic perspective view of the positioning cover of FIG. 2;

fig. 6 is a front view of the positioning cap of fig. 2.

The reference numbers in the drawings are as follows:

10. a housing; 20. folding the legs; 30. a positioning cover; 310. a cover body; 320. positioning the elastic sheet; 330. an avoidance groove; 311. positioning the projection; 312. a positioning groove; 321. a positioning column; 322. a first positioning hole; 40. a circuit board; 41. a positive electrode; 42. a negative electrode; 50. a mounting seat; 51. a first carrier stage; 52. a first limit groove; 53. a second stage; 54. a second limit groove; 55. mounting holes; 60. a rotating shaft; 70. a positive electrode connecting assembly; 71. a positive electrode connecting end; 72. a first bent portion; 710. a first positive electrode connection member; 720. a second positive electrode connection member; 80. a negative electrode connecting assembly; 81. a negative electrode connecting end; 82. a second bent portion; 810. a first negative electrode connecting member; 820. a second negative electrode connecting member; 90. a receiving cavity.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, for example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or position illustrated in the drawings, which are for convenience of description only and are not to be construed as limiting of the present disclosure.

The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and claims of the present invention or in the above-described drawings are used for distinguishing between different objects and not for describing a particular sequential order. The meaning of "plurality" is two or more unless explicitly defined otherwise.

In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The following describes in detail a charger according to an embodiment of the present invention with reference to the drawings.

Referring to fig. 1 to 3, the charger of the present application includes a housing 10, two folding legs 20, and a positioning cover 30.

The housing 10 is provided with a circuit board 40 and a mount 50 therein. The circuit board 40 is provided with a positive electrode 41 and a negative electrode 42. The mounting seat 50 is provided with a rotating shaft 60, a positive electrode connecting assembly 70 and a negative electrode connecting assembly 80.

The two folding legs 20 are connected to the rotating shaft 60 and rotatably disposed on the housing 10 through the rotating shaft 60. The two folding legs 20 are rotated between the storage position and the charging position by the rotating shaft 60 under the action of external force. When the foldable leg 20 rotates to the storage position, the foldable leg 20 is stored in the housing 10, which is convenient for carrying. When the foldable foot 20 is rotated to the charging position, the foldable foot 20 can be plugged into an external power supply device, such as a socket, to obtain power from the external power supply device. One folding leg 20 is electrically connected to the positive electrode 41 through the positive electrode connecting assembly 70, and the other folding leg 20 is electrically connected to the negative electrode 42 through the negative electrode connecting assembly 80, so that electric energy obtained from an external power supply device is transmitted to the circuit board 40, and the electronic device is charged through the circuit board 40.

The positioning cover 30 is engaged with the mounting seat 50 and covers the mounting seat 50. The positioning cover 30 and the mounting seat 50 form a receiving cavity 90 for receiving the rotating shaft 60, the positive electrode connecting assembly 70 and the negative electrode connecting assembly 80.

The positioning cover 30 is provided with a first positioning structure and a second positioning structure. First location structure is used for rotating folding foot 20 to the position of charging and fixes a position, and folding foot 20 is difficult to get back to and accomodates the position when folding foot 20 inserts external power supply equipment's in-process. The second positioning structure is used to position the positive electrode connection member 70 and the negative electrode connection member 80.

In this application, through set up circuit board 40 and mount pad 50 in casing 10, form between mount pad 50 and the location lid 30 and hold pivot 60, anodal coupling assembling 70 and negative pole coupling assembling 80 hold chamber 90, set up first location structure and second location structure on the lid 30 of location, first location structure is used for rotating folding foot 20 and fixes a position to charging the position, the second location structure be used for anodal coupling assembling 70 with negative pole coupling assembling 80 fixes a position to the realization holds and fixes a position pivot 60, anodal coupling assembling 70 and negative pole coupling assembling 80 through the cooperation of location lid 30 and mount pad 50, and overall structure is compact, occupies less space. The folding thin volume of the charger is small, the occupied space is small, and the volume can be one half smaller than that of other power supply folding mechanisms with the same power section; the power may be made larger relative to the same volume of the housing.

Referring to fig. 3 to 5, the first positioning structure includes a positioning protrusion 311 and a positioning groove 312. The positioning protrusion 311 is disposed on the rotating shaft 60, the positioning groove 312 is disposed on the positioning cover 30, and the positioning protrusion 311 slides into the positioning groove 312 and cooperates with the positioning groove 312 to position the foldable foot 20 to rotate to the charging position.

Folding foot 20 rotates to the in-process that charges the position, and positioning protrusion 311 slips into positioning groove 312, and positioning groove 312 and positioning protrusion 311 cooperation are fixed a position positioning protrusion 311 to the countershaft 60 is fixed a position, makes folding foot 20 of being connected with the pivot 60 be located the position of charging, and folding foot 20 is difficult to get back to when inserting external power supply equipment and accomodates the position. In the process that the folding leg 20 is rotated out from the charging position, the positioning protrusion 311 located in the positioning groove 312 is driven by the folding leg 20 to slide out of the positioning groove 312, and the folding leg 20 rotates and is contained in the housing 10 and located in the containing position.

In other embodiments, the first positioning structure may also be that a positioning groove 312 is disposed on the positioning cover 30, a positioning protrusion 311 is disposed on the rotating shaft 60, and the positioning groove 312 and the positioning protrusion 311 cooperate to position the folding foot 20 in the charging position.

In this embodiment, the positioning cover 30 includes a cover body 310 and a positioning spring 320. The cover 310 is provided with an escape groove 330. The positioning elastic sheet 320 is connected to the cover 310 and disposed in the avoiding groove 330. The positioning groove 312 is disposed on the positioning spring 320. The avoidance slot 330 allows the positioning spring 320 to have a space relative to the cover 310.

Specifically, in the process that the positioning protrusion 311 slides into the positioning groove 312, the positioning elastic sheet 320 is lifted, after the positioning protrusion 311 slides into the positioning groove 312, the positioning elastic sheet 320 returns to the original position, and the positioning protrusion 311 cooperates with the positioning groove 312 to position the folding leg 20 at the charging position. In the process that the positioning protrusion 311 slides out of the positioning groove 312, the positioning elastic sheet 320 is jacked up, and after the positioning protrusion 311 slides out of the positioning groove 312, the positioning elastic sheet 320 is restored to the original position. The positioning spring 320 facilitates the positioning protrusion 311 to slide into or out of the positioning groove 312, and facilitates the positioning of the foldable foot 20 at the charging position or the separation from the charging position.

Referring to fig. 2 to 4, the positive electrode connecting assembly 70 is provided with a positive electrode connecting terminal 71. The negative connecting assembly 80 has a negative connecting end 81, and the positive connecting end 71 and the negative connecting end 81 are disposed side by side on the same side of the same folding leg 20. The positive electrode 41 and the negative electrode 42 are arranged side by side on the circuit board 40, the positive electrode 41 is electrically connected to the positive connection terminal 71, and the negative electrode 42 is electrically connected to the negative connection terminal 81. By arranging the positive connecting end 71 and the negative connecting end 81 side by side on the same side of the same folding leg 20 and electrically connecting the positive electrode 41 and the negative electrode 42 which are correspondingly arranged side by side on the circuit board 40, the wiring between the circuit board 40 and the positive connecting end 71 and the negative connecting end 81 can be shortened, and the space is saved.

Specifically, the positive electrode connecting assembly 70 is provided with a first bent portion 72 to form a positive electrode connecting end 71. The negative electrode connecting assembly 80 is provided with a second bent portion 82 to form a negative electrode connecting end 81. The first bent portion 72 and the second bent portion 82 are arranged side by side. The circuit board 40 is vertically disposed on the mounting base 50, and the positive electrode 41 is inserted into the first bending portion 72 and electrically connected to the first bending portion 72, so as to electrically connect to the positive connecting assembly 70. The negative electrode 42 is inserted into the second bent portion 82, and is electrically connected to the second bent portion 82, so as to be electrically connected to the negative electrode connecting assembly 80. The circuit board 40 is vertically inserted and installed on the installation base 50, components on the circuit board 40 are located above the installation base 50, the overall space layout is compact, the circuit board 40 is convenient to insert and install, and the two electrodes are stably connected with the corresponding positive electrode connection assembly 70 and the corresponding negative electrode connection assembly 80.

Referring to fig. 2 to 4, the positive electrode connection assembly 70 includes a first positive electrode connection member 710 and a second positive electrode connection member 720. The first positive electrode connector 710 is disposed perpendicular to the second positive electrode connector 720. The first positive connector 710 is electrically connected to a folding leg 20. The positive connection terminal 71 is provided on the second positive connection member 720. The second positive electrode connector 720 is electrically connected to the first positive electrode connector 710 and is electrically connected to the positive electrode 41 of the circuit board 40 through the positive electrode connection terminal 71.

The first bent portion 72 is specifically disposed on the second positive electrode connecting member 720, and the positive electrode 41 of the circuit board 40 is inserted into the first bent portion 72 and electrically connected to the second positive electrode connecting member 720.

In this embodiment, the mounting base 50 is provided with a first bearing platform 51 and a first limiting groove 52. The height of the first bearing platform 51 is higher than the height of the bottom wall of the first limiting groove 52. The first positive connecting member 710 is disposed on the first supporting platform 51, and the second positive connecting member 720 is positioned in the first position-limiting groove 52 and is electrically connected to the first positive connecting member 710. The first positive connecting piece 710 and the second positive connecting piece 720 are installed in a manner of matching the first bearing table 51 with the first limiting groove 52, the first positive connecting piece 710 and the second positive connecting piece 720 are arranged up and down and mutually abutted to be electrically connected, and the electrical connection is stable and reliable.

The negative electrode connection assembly 80 includes a first negative electrode connector 810 and a second negative electrode connector 820. The first negative electrode connector 810 is perpendicularly connected to the second negative electrode connector 820. The first negative electrode connector 810 is electrically connected to the other folding leg 20. The negative connection terminal 81 is disposed on the second negative connection member 820. The second negative electrode connector 820 is electrically connected to the first negative electrode connector 810, and is electrically connected to the positive electrode 41 through the negative electrode connection terminal 81.

The second bent portion 82 is specifically disposed on the second negative electrode connecting member 820, and the negative electrode 42 of the circuit board 40 is inserted into the second bent portion 82 and electrically connected to the second negative electrode connecting member 820.

The folding leg 20 is electrically connected with the positive electrode 41 of the circuit board 40 through the first positive connecting piece 710 and the second positive connecting piece 720 which are perpendicular to each other, the other folding leg 20 is electrically connected with the negative electrode 42 of the circuit board 40 through the second negative connecting piece 820 and the second negative connecting piece 820 which are perpendicular to each other, and the electric connection structure of the folding leg 20 and the circuit board 40 is compact.

In this embodiment, the mounting base 50 is provided with a second bearing platform 53 and a second limiting groove 54. The height of the second bearing table 53 is higher than the height of the bottom wall of the second limiting groove 54. The second negative electrode connector 820 is disposed on the second supporting platform 53. The second negative connector 820 is positioned in the second limiting groove 54 and is electrically connected with the second negative connector 820 in an abutting manner. The first negative electrode connector 810 and the second negative electrode connector 820 are installed in a manner that the second bearing platform 53 is matched with the second limiting groove 54, the first negative electrode connector 810 and the second negative electrode connector 820 are arranged up and down and are mutually abutted and electrically connected, and the electrical connection is stable and reliable.

Referring to fig. 2, 4 to 6, the second positioning structure includes a positioning post 321, a first positioning hole 322 and a second positioning hole. The positioning column 321 is arranged on the mounting seat 50, the first positioning hole 322 is arranged on the positioning cover 30, the second positioning hole is arranged on the positive connecting component 70 and the negative connecting component 80, and the positioning column 321 is arranged in a matched and penetrating mode through the first positioning hole 322 and the second positioning hole and used for positioning the positive connecting component 70 and the negative connecting component 80. The positioning post 321 penetrates through the first positioning hole 322 and the second positioning hole, so that the positioning cover 30 is matched with and covers the mounting seat 50, the positive connecting assembly 70 and the negative connecting assembly 80 are positioned, and the positive connecting assembly 70 and the negative connecting assembly 80 are pressed on the mounting seat 50.

In addition, a mounting hole 55 may be provided in each of the positioning cover 30 and the mounting seat 50. After the positioning cover 30 is matched with the mounting seat 50, a screw can penetrate through the mounting hole 55 to fix the positioning cover 30 and the mounting seat 50 together, so that the positioning cover 30 and the mounting seat 50 can be fastened and assembled.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A charger, comprising:

a shell, a circuit board and a mounting seat are arranged in the shell, a positive electrode and a negative electrode are arranged on the circuit board, the mounting seat is provided with a rotating shaft, a positive electrode connecting assembly and a negative electrode connecting assembly;

the two folding legs are connected with the rotating shaft and are rotatably arranged on the shell through the rotating shaft, one folding leg is electrically connected with the positive electrode through the positive electrode connecting component, and the other folding leg is electrically connected with the negative electrode through the negative electrode connecting component;

the positioning cover is matched with the mounting seat and covers the mounting seat, and an accommodating cavity capable of accommodating the rotating shaft, the positive connecting assembly and the negative connecting assembly is formed between the positioning cover and the mounting seat;

the utility model discloses a folding foot charging device, including folding foot, positive coupling assembling with negative coupling assembling fixes a position, be equipped with first location structure and second location structure on the location is covered, first location structure is used for right folding foot rotates to the position of charging and fixes a position, second location structure is used for right positive coupling assembling with negative coupling assembling fixes a position.

2. The charger according to claim 1, wherein the first positioning structure comprises a positioning protrusion and a positioning groove, the positioning protrusion is disposed on the rotating shaft, the positioning groove is disposed on the positioning cover, and the positioning protrusion slides into the positioning groove and cooperates with the positioning groove to position the folding leg when the folding leg rotates to the charging position.

3. The charger according to claim 2, wherein the positioning cover includes a cover body and a positioning elastic sheet, an avoiding groove is formed in the cover body, the positioning elastic sheet is connected with the cover body and disposed in the avoiding groove, and the positioning groove is disposed on the positioning elastic sheet.

4. The charger according to claim 1, wherein the positive connecting member has a positive connecting end, the negative connecting member has a negative connecting end, the positive connecting end and the negative connecting end are arranged side by side on the same side of the folding leg, the positive electrode and the negative electrode are arranged side by side on the circuit board, the positive electrode is electrically connected to the positive connecting end, and the negative electrode is electrically connected to the negative connecting end.

5. The charger according to claim 4, wherein a first bent portion is formed on the positive connecting member to form a positive connecting end, a second bent portion is formed on the negative connecting member to form a negative connecting end, the first bent portion and the second bent portion are arranged side by side, the circuit board is vertically disposed on the mounting base, the positive electrode is inserted into the first bent portion and electrically connected to the first bent portion, and the negative electrode is inserted into the second bent portion and electrically connected to the second bent portion.

6. The charger according to claim 4, wherein the positive connecting member comprises a first positive connecting member and a second positive connecting member disposed perpendicular to the first positive connecting member, the first positive connecting member is electrically connected to one of the folding legs, the positive connecting end is disposed on the second positive connecting member, and the second positive connecting member is electrically connected to the first positive connecting member and electrically connected to the positive electrode through the positive connecting end.

7. The charger according to claim 6, wherein the mounting base is provided with a first bearing platform and a first limiting groove, the first bearing platform is higher than the bottom wall of the first limiting groove, the first positive connecting piece is arranged on the first bearing platform, and the second positive connecting piece is positioned in the first limiting groove and is abutted against and electrically connected with the first positive connecting piece.

8. The charger according to claim 6, wherein the negative electrode connecting assembly includes a first negative electrode connecting member and a second negative electrode connecting member disposed perpendicular to the first negative electrode connecting member, the first negative electrode connecting member is electrically connected to the other folding leg, the negative electrode connecting end is disposed on the second negative electrode connecting member, and the second negative electrode connecting member is electrically connected to the first negative electrode connecting member and electrically connected to the positive electrode through the negative electrode connecting end.

9. The charger according to claim 8, wherein the mounting base is provided with a second bearing platform and a second limiting groove, the height of the second bearing platform is higher than that of the bottom wall of the second limiting groove, the first negative connecting piece is arranged on the second bearing platform, and the second negative connecting piece is positioned in the second limiting groove and is abutted against and electrically connected with the first negative connecting piece.

10. The charger according to any one of claims 1 to 9, wherein the second positioning structure includes a positioning protrusion, a first positioning hole and a second positioning hole, the positioning protrusion is disposed on the mounting seat, the first positioning hole is disposed on the positioning cover, the second positioning hole is disposed on the positive connecting assembly and the negative connecting assembly, and the positioning protrusion is disposed through the first positioning hole and the second positioning hole in a matching manner and is used for positioning the positive connecting assembly and the negative connecting assembly.