CN216698805U

CN216698805U - Charging device

Info

Publication number: CN216698805U
Application number: CN202122544179.5U
Authority: CN
Inventors: 张军; 金志成
Original assignee: Wuxi Wentai Information Technology Co ltd
Current assignee: Wuxi Wentai Information Technology Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-06-07
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a charger, which comprises a shell, a main board and a metal elastic sheet, wherein the main board and the metal elastic sheet are arranged in the shell; the shell is provided with an inserting piece, and the metal elastic sheet is electrically connected with the inserting piece; the metal elastic sheet is provided with elastic sheet salient points, and the main board is provided with limiting holes; when the mainboard is inserted into the preset position of the metal elastic sheet, the elastic sheet convex points are clamped with the limiting holes, so that the mainboard is electrically connected with the metal elastic sheet. According to the charger provided by the utility model, the metal elastic sheet is provided with the elastic sheet salient point and the mainboard is provided with the limiting hole, so that when the mainboard is inserted into the metal elastic sheet for electric connection, the elastic sheet salient point can be clamped with the limiting hole, and therefore, the charger has obvious clamping feeling in the assembling process and is convenient for an assembler to confirm that the charger is installed in place. Meanwhile, the clamping effect of the elastic sheet convex points and the limiting holes enables the electric connection between the mainboard and the metal elastic sheet to be more stable, and the situation that the assembly is not in place is avoided.

Description

Charging device

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of electronic equipment accessories, in particular to a charger.

[ background ] A method for producing a semiconductor device

With the development of communication technology, the electronic products are more and more abundant, wherein the electronic products are usually equipped with a charging plug. The smaller the size of the fast charging head on the market at present, the smaller the size of the product is, and the stacking of the internal parts of the charger is more and more compact. When the existing charger is designed, the charging insertion sheet is connected with the internal main board by a welding wire or by an elastic sheet contact. Wherein, adopt the bonding wire connection scheme to lead to the equipment comparatively loaded down with trivial details, need occupy great space moreover. Therefore, a spring contact method is generally adopted for a compact charger. The mode of spring plate contact has the risk of poor contact, and the mode of spring plate contact all uses blind dress at present, does not have the feedback information of equipment in place during the equipment, and the condition of equipment not in place appears easily during the equipment.

In view of the above, it is desirable to provide a charger to overcome the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims to provide a charger, which aims to solve the problem that the charger is easy to be assembled in place when assembled in a spring contact mode and provide feedback information of the in-place assembly.

In order to achieve the above object, the present invention provides a charger, which includes a housing, and a main board and a metal spring both disposed in the housing; the shell is provided with an inserting piece, and the metal elastic piece is electrically connected with the inserting piece; the metal elastic sheet is provided with an elastic sheet salient point, and the main board is provided with a limiting hole; when the mainboard is inserted into the preset position of the metal elastic sheet, the elastic sheet salient points are clamped with the limiting holes, so that the mainboard is electrically connected with the metal elastic sheet.

In a preferred embodiment, the metal elastic sheet comprises a fixed part and an elastic part arranged on the fixed part; the fixing part is attached to and fixed on the inner wall of the shell and electrically connected with the inserting pieces.

In a preferred embodiment, the elastic part comprises a conductive part which is bent inwards vertically from the edge of the fixing part and a contact part which is bent inwards 180 degrees from one end of the conductive part away from the fixing part; the spring plate salient points are arranged on the contact parts, and the contact parts are used for being electrically connected with the mainboard.

In a preferred embodiment, the number of the conductive portions and the number of the contact portions are two, and the conductive portions and the contact portions are respectively arranged on two sides of the fixing portion; the two contact portions are bent inwards from the two conductive portions along the mutually approaching direction, so that the two contact portions are respectively abutted to two sides of the main board.

In a preferred embodiment, the conductive portion and the fixing portion and the conductive portion and the contact portion are both in a circular arc transition.

In a preferred embodiment, the number of the dome bumps is one, and the dome bumps are disposed on one of the two contact portions.

In a preferred embodiment, the metal elastic sheet is a copper sheet.

In a preferred embodiment, the inserting pieces comprise a positive inserting piece and a negative inserting piece which are arranged in parallel at a spacing; the positive pole inserted sheet and the negative pole inserted sheet are both vertically fixed on the surface of the shell.

According to the charger provided by the utility model, the metal elastic sheet is provided with the elastic sheet salient point and the mainboard is provided with the limiting hole, so that when the mainboard is inserted into the metal elastic sheet for electric connection, the elastic sheet salient point can be clamped with the limiting hole, and therefore, the charger has obvious clamping feeling in the assembling process, and is convenient for an assembler to confirm in-place installation in blind installation. Meanwhile, the clamping effect of the elastic sheet convex points and the limiting holes enables the electric connection between the mainboard and the metal elastic sheet to be more stable, and the situation that the assembly is not in place is avoided.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a perspective view of a charger provided by the present invention;

FIG. 2 is a longitudinal cross-sectional view of the charger of FIG. 1;

fig. 3 is a partially enlarged view of the charger ring a shown in fig. 2.

Reference numbers in the figures: 100. a charger; 10. a housing; 11. inserting sheets; 20. a main board; 21. a limiting hole; 30. a metal spring sheet; 31. the elastic sheet salient points; 32. a fixed part; 33. an elastic portion; 331. a conductive portion; 332. a contact portion.

[ detailed description ] A

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In an embodiment of the present invention, a charger 100 is provided for improving the stability of electrical connection of internal devices while achieving miniaturization.

As shown in fig. 1-3, the charger 100 includes a housing 10, and a main board 20 and a metal spring 30 both disposed in the housing 10. The main board 20 is electrically connected with the metal elastic sheet 30.

Specifically, the housing 10 is a hollow rectangular parallelepiped, and has a containing cavity therein, and the main board 20 and the metal elastic sheet 30 are fixed in the containing cavity. Wherein, the housing 10 is provided with an insert 11. The inserting pieces 11 comprise a positive inserting piece and a negative inserting piece which are arranged in parallel at intervals. The positive electrode insertion piece and the negative electrode insertion piece are both vertically fixed on the surface of the shell 10 and are used for being electrically connected with the positive electrode and the negative electrode of an external power supply correspondingly.

In the present embodiment, the metal spring 30 is a copper sheet. The metal elastic sheet 30 is electrically connected with the insertion sheet 11, so as to electrically connect an external power supply with the mainboard 20.

Wherein, the metal spring sheet 30 is provided with a spring sheet salient point 31. The dome bump 31 is formed by recessing a predetermined portion of the metal dome 30. Correspondingly, the main board 20 is provided with a limiting hole 21. The area of the limiting hole 21 is not smaller than the area of the maximum cross section of the spring sheet salient point 31. Therefore, when the motherboard 20 is inserted into the predetermined position of the metal dome 30, the dome bump 31 is engaged with the limiting hole 21, so that the motherboard 20 is electrically connected to the metal dome 30. In the clamping process, as the metal elastic sheet 30 is pressed on the main board 20 through the elasticity thereof, when the main board 20 moves and the limiting hole 21 is just aligned with the elastic sheet convex point 31, the obvious clamping feeling is generated, so that an assembler can confirm that the installation is in place, and feedback information of the assembly in place is received in the blind installation process.

Specifically, the metal elastic sheet 30 includes a fixing portion 32 and an elastic portion 33 disposed on the fixing portion 32. The fixing portion 32 is attached to the inner wall of the housing 10 and electrically connected to the insert 11, so as to prevent the metal dome 30 from moving in the housing 10. The elastic portion 33 is used to provide elastic force to press-fit at a predetermined position of the main board 20.

The elastic portion 33 includes a conductive portion 331 bent perpendicularly inward from an edge of the fixed portion 32 and a contact portion 332 bent inward by 180 ° from an end of the conductive portion 331 away from the fixed portion 32. That is, the contact portion 332 is bent inward twice from the edge of the fixing portion 32, and the contact portion 332 and the fixing portion 32 are perpendicular to each other. The arc transitions are formed between the conductive portion 331 and the fixing portion 32 and between the conductive portion 331 and the contact portion 332, so as to provide the maximum elasticity for the elastic portion 33.

Further, the number of the conductive portions 331 and the contact portions 332 is two, and the conductive portions and the contact portions are respectively provided on both sides of the fixing portion 32. Specifically, the pair of contact portions 332 are bent inward from the pair of conductive portions 331 along the approaching direction, so that the pair of contact portions 332 are pressed along the approaching direction, and are abutted against two sides of the motherboard 20, thereby preventing the motherboard 20 from shifting due to uneven stress.

The dome bump 31 is disposed on the contact portion 332, and the contact portion 332 is used for electrically connecting with the motherboard 20. Further, the number of the dome bumps 31 is one, and the dome bumps are disposed on one of the pair of contact portions 332, so that the amount of processing of the metal dome 30 is reduced.

In summary, according to the charger 100 provided by the present invention, the spring plate bump 31 is disposed on the metal spring plate 30 and the limiting hole 21 is disposed on the main board 20, so that when the main board 20 is inserted into the metal spring plate 30 for electrical connection, the spring plate bump 31 can be engaged with the limiting hole 21, and thus, an obvious engagement feeling can be generated during the assembly process, which is convenient for an assembler to confirm that the mounting is in place. Meanwhile, the clamping action of the spring plate salient points 31 and the limiting holes 21 enables the electric connection between the main board 20 and the metal spring plate 30 to be more stable, and the situation that the assembly is not in place is avoided.

The utility model is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the utility model is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A charger is characterized by comprising a shell, a main board and a metal elastic sheet, wherein the main board and the metal elastic sheet are arranged in the shell; the shell is provided with an inserting piece, and the metal elastic piece is electrically connected with the inserting piece; the metal elastic sheet is provided with an elastic sheet salient point, and the main board is provided with a limiting hole; when the mainboard is inserted into the preset position of the metal elastic sheet, the elastic sheet salient points are clamped with the limiting holes, so that the mainboard is electrically connected with the metal elastic sheet.

2. The charger according to claim 1, wherein the metal spring plate comprises a fixing portion and an elastic portion disposed on the fixing portion; the fixing part is attached to and fixed on the inner wall of the shell and electrically connected with the inserting piece.

3. The charger according to claim 2, wherein the elastic portion includes a conductive portion bent perpendicularly inward from an edge of the fixing portion and a contact portion bent inward by 180 ° from an end of the conductive portion away from the fixing portion; the spring plate salient points are arranged on the contact parts, and the contact parts are used for being electrically connected with the mainboard.

4. The charger according to claim 3, wherein the number of the conductive portions and the contact portions is two, and the two conductive portions and the two contact portions are respectively provided on both sides of the fixing portion; the two contact portions are bent inwards from the two conductive portions along the mutually approaching direction, so that the two contact portions are respectively abutted to two sides of the main board.

5. The charger of claim 3, wherein the conductive portion and the stationary portion and the conductive portion and the contact portion are each rounded transitions.

6. The charger according to claim 4, wherein the number of the dome bumps is one, and the dome bumps are provided on one of the two contact portions.

7. The charger of claim 1, wherein the metal dome is a copper sheet.

8. The charger of claim 1, wherein the tabs comprise a positive tab and a negative tab spaced apart in parallel; the positive pole inserted sheet and the negative pole inserted sheet are both vertically fixed on the surface of the shell.