CN114006444A

CN114006444A - Charging connection device

Info

Publication number: CN114006444A
Application number: CN202111454252.8A
Authority: CN
Inventors: 丁柏平; 杨锋; 黄阳彪; 宋林静; 王进韬; 殷佩璇
Original assignee: Shenzhen Zhongfuneng Electric Equipment Co Ltd
Current assignee: Shenzhen Zhongfuneng Electric Equipment Co Ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-02-01
Anticipated expiration: 2041-12-01
Also published as: CN114006444B

Abstract

The invention belongs to the technical field of flashlights, and discloses a charging connection device. The charging connection device comprises a circuit board and a charging elastic sheet, the circuit board is arranged in a casing, the circuit board is electrically connected with a rechargeable battery, and the first end of the charging elastic sheet is connected to the circuit board. For electrical connection, the second end of the charging elastic piece passes through the casing and can be electrically connected with the charger. The charging connection device provided by the invention has high connection reliability between the charging shrapnel and the circuit board, the charger can be electrically connected with the charging shrapnel, and the charging shrapnel, the circuit board and the rechargeable battery are electrically connected in sequence to charge the rechargeable battery, and can be used as a flashlight to charge the battery. When the charging shrapnel has a large heat dissipation area, it can effectively volatilize the heat during the charging process.

Description

Charging connection device

Technical Field

The invention relates to the technical field of flashlights, in particular to a charging connecting device.

Background

At present, the high-power flashlight has the characteristics of high power, high power consumption, large-capacity batteries, strong illumination and the like, is mostly an LED lamp, and is suitable for occasions of search and rescue, hole exploration, hunting and daily lighting.

For a high-power flashlight, the high-power flashlight has large heat productivity and needs high-efficiency heat dissipation performance, when the high-power flashlight is charged, the charging current is large, so that the heat productivity of a charging connecting device of the high-power flashlight is large, and the reliability required by large-current charging is difficult to meet by an electric copper column and an installation mode in a conventional charging connecting device structure.

Disclosure of Invention

The invention aims to provide a charging connecting device which is suitable for a high-power flashlight, good in heat dissipation performance and reliable in installation.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a charging connecting device, sets up on the flashlight, can be connected with the charger electricity, and the flashlight includes the shell and sets up the rechargeable battery in the shell, and charging connecting device includes:

the circuit board is arranged in the shell and is electrically connected with the rechargeable battery;

the first end of the charging elastic sheet is electrically connected with the circuit board, and the second end of the charging elastic sheet penetrates through the shell and can be electrically connected with the charger.

Preferably, the shell includes the stack shell and the tail-hood be connected with the stack shell, and stack shell and tail-hood form the installation cavity, and circuit board and rechargeable battery all set up in the installation cavity.

Preferably, the tail cover and the charging spring plate are integrally injection-molded.

Preferably, the second end of the charging spring is arranged on the end face outside the shell, and a charging contact is arranged on the end face, and can be electrically connected with the charger.

Preferably, a first groove is formed in the outer end face of the tail cover, and the charging contact is arranged in the first groove.

Preferably, when the circuit board is provided with one, the shape of the charging spring plate is U-shaped, the circuit board is arranged between the two opposite side walls of the charging spring plate, and the two opposite side walls of the charging spring plate are both abutted to the circuit board.

Preferably, the tip of the both sides wall that the shell fragment is relative charges all is equipped with first joint portion, offer on the circuit board with first joint portion accordant connection's joint hole, the bottom and the shell rigid coupling of the shell fragment that charge.

Preferably, the two side walls of the charging elastic sheet are provided with second clamping parts protruding inwards, and the circuit board is provided with second grooves connected with the second clamping parts in a matched mode.

Preferably, when the circuit board is provided with a plurality of circuit boards, the shell is provided with a first card slot for plugging the circuit board;

the first end of the charging elastic sheet is provided with a plurality of third clamping parts, and the circuit board is provided with a plurality of connecting grooves which are connected with the third clamping parts in a one-to-one correspondence manner.

Preferably, the second end of the charging spring plate is provided with a fixing part in a bending manner, and the charging spring plate is fixedly connected with the shell through the fixing part.

Has the advantages that:

the charging connecting device provided by the invention has the advantages that the connection reliability of the charging elastic sheet and the circuit board is high, the charger can be electrically connected with the charging elastic sheet, the charging battery can be charged through the sequential electrical connection of the charging elastic sheet, the circuit board and the charging battery, and when the flashlight is charged, the heat dissipation area of the charging elastic sheet is large, so that the heat in the charging process can be effectively volatilized.

Drawings

FIG. 1 is a schematic view of a flashlight according to an embodiment of the present invention;

FIG. 2 is a front view of a flashlight provided in accordance with one embodiment of the present invention;

fig. 3 is a cross-sectional view of a charging connection device according to an embodiment of the invention;

fig. 4 is a schematic structural diagram of a charging connection device according to an embodiment of the present invention;

fig. 5 is an exploded view of a charging connection device according to an embodiment of the present invention;

fig. 6 is a schematic view of a charging spring plate structure according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a tail cover according to a second embodiment of the present invention;

fig. 8 is a cross-sectional view of a charging connection device according to a second embodiment of the present invention;

fig. 9 is a schematic view of a charging spring plate structure according to a second embodiment of the present invention;

fig. 10 is a schematic structural diagram of a charging connection device according to a second embodiment of the present invention.

In the figure:

100. a housing; 110. a barrel body; 111. pressing a key; 112. an indicator light; 120. a tail cover; 121. a first groove; 122. a first card slot; 123. a USB interface; 124. a rope hanging hole; 125. positioning the hook; 126. a circular arc bulge; 130. a lamp cap;

200. a circuit board; 210. a clamping hole; 220. connecting grooves;

300. a charging spring plate; 310. a charging contact; 320. a first clamping part; 330. a second clamping part; 340. an opening part; 350. a third clamping connection part; 360. a fixed part; 370. a yielding groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

Referring to fig. 1 to 3, the present embodiment provides a charging connection device, the charging connection device is disposed on a flashlight and can be electrically connected to a charger, the flashlight includes a housing 100 and a rechargeable battery disposed in the housing 100, the charging connection device includes a circuit board 200 and a charging elastic sheet 300, the circuit board 200 is disposed in the housing 100, the circuit board 200 is electrically connected to the rechargeable battery, a first end of the charging elastic sheet 300 is electrically connected to the circuit board 200, and a second end of the charging elastic sheet 300 penetrates through the housing 100 and can be electrically connected to the charger.

The charging elastic sheet 300 is high in connection reliability with the circuit board 200, the charger can be electrically connected with the charging elastic sheet 300, the circuit board 200 and the rechargeable battery are sequentially electrically connected to charge the rechargeable battery, and when the flashlight is charged, the heat dissipation area of the charging elastic sheet 300 is large, and heat in the charging process can be effectively volatilized.

Further, at least one charging spring 300 is provided. Preferably, the charging spring 300 is provided in two.

In this embodiment, referring to fig. 1, the casing 100 includes a barrel 110 and a tail cover 120 connected to the barrel 110, the barrel 110 and the tail cover 120 form a mounting cavity, and the circuit board 200 and the rechargeable battery are disposed in the mounting cavity. Further, the tail cap 120 may be connected to the barrel 110 through a screw, or may be connected to the barrel 110 through other methods, which will not be described in detail herein.

Further, the outer terminal surface of tail-hood 120 is provided with USB interface 123, and USB interface 123 is connected with circuit board 200 electricity, and when flashlight rechargeable battery electric power was not enough, can utilize USB interface 123 directly to charge rechargeable battery, had not only richened the charging mode of flashlight, convenient and practical moreover. Further, the circuit board 200 is provided with a storage module and a data transmission module electrically connected to the storage module, the data transmission module is electrically connected to the USB interface 123, the storage module can be used to store the usage data of the flashlight, and the data transmission module can transmit the usage data of the flashlight in the storage module to other devices through the USB interface 123 for analysis. Further, a protective cover is installed at the USB interface 123, and when the USB interface 123 is not used, the USB interface 123 is sealed by the protective cover to prevent water and dust.

Further, the outer end face of the tail cover 120 is further provided with a hanging rope hole 124, the hanging rope hole 124 is connected with a hanging rope, and the flashlight can be hung on other objects through the hanging rope so as to be conveniently carried and hung.

Further, referring to fig. 2, a lamp head 130 is disposed at an end of the barrel 110 opposite to the tail cover 120, and a bulb is installed in the lamp head 130, preferably, the bulb may be an LED lamp bead, or may be another type of bulb, which is not described in detail herein. Furthermore, a button 111 for controlling the light switch of the bulb is arranged on the side wall of the barrel body 110.

Further, a plurality of indicator lamps 112 are arranged on the side wall of the barrel body 110, when the flashlight is used, the remaining power condition is displayed through the number of the indicator lamps 112 which are long and bright, and when the flashlight is charged, the charging state is displayed through the number of the indicator lamps 112 which are long and bright. Further, the remaining capacity of the rechargeable battery and the charging state during charging may also be displayed in other forms, which are not described in detail herein.

In this embodiment, referring to fig. 3, a charging contact 310 is disposed on an end surface of the charging spring 300, the end surface being disposed outside the housing 100, and the charging contact 310 can be electrically connected to a charger. Specifically, the second end of the charging spring 300 penetrates through the tail cover 120, and the charging spring 300 is disposed outside the outer end surface of the tail cover 120 and provided with a charging contact 310.

Further, a first groove 121 is formed on an outer end surface of the tail cover 120, and the charging contact 310 is disposed in the first groove 121. Specifically, the charging contact 310 is convexly disposed in the first groove 121, and the charging contact 310 is lower than the outer end surface of the tail cover 120, so that the charging contact 310 can be effectively protected, and the charging contact 310 is prevented from being worn. Further, be provided with on the charger with first recess 121 accordant connection's arch, make things convenient for the charger to dock with charging contact 310 accurately. Furthermore, a magnetic part can be arranged in the first groove 121, and the charger is provided with a magnetic part matched with the magnetic part, so that the connection between the charger and the charging contact 310 is more stable by the magnetic part when the flashlight is charged, and the charger and the charging contact 310 can be effectively prevented from being connected in a virtual manner.

In this embodiment, the material of the barrel 110 and the tail cover 120 may be a plastic material, or other materials, which will not be described in detail herein. Further, the material of the charging spring 300 is a metal material, and preferably, the material of the charging spring 300 is copper. In this embodiment, the charging spring plate 300 and the tail cap 120 are integrally injection molded, so that the charging spring plate 300 is firmly fixed on the tail cap 120, and the waterproof sealing performance of the flashlight is enhanced.

One or more circuit boards 200 may be provided according to the design requirement of the flashlight function, and in the embodiment, one circuit board 200 is provided. Specifically, referring to fig. 4 to 6, the charging spring 300 is U-shaped, the circuit board 200 is disposed between two opposite sidewalls of the charging spring 300, and both of the two opposite sidewalls of the charging spring 300 are abutted to the circuit board 200. In the present embodiment, the circuit board 200 is clamped by the charging spring 300 to fix the circuit board 200 to the tail cap 120. In this embodiment, the circuit board 200 can be inserted from the opening at the top end of the charging spring plate 300, so that the circuit board 200 is embedded into the charging spring plate 300, and when the circuit board 200 is detached, the circuit board 200 is pulled out from the charging spring plate 300 along the insertion direction, which is convenient to detach and install.

Further, referring to fig. 6, the end portions of the two opposite side walls of the charging spring 300 are respectively provided with a first clamping portion 320, and the circuit board 200 is provided with a clamping hole 210 connected to the first clamping portion 320 in a matching manner. Specifically, the first clamping portions 320 are formed by oppositely bending end portions of two side walls of the charging spring 300, and the first clamping portions 320 are symmetrically arranged. Further, the first clamping portion 320 can be clamped with the sidewall of the clamping hole 210 to fix the circuit board 200. In this embodiment, the circuit board 200 is inserted from the opening at the top end of the charging spring 300, when the insertion end of the circuit board 200 abuts against the inner end surface of the tail cover 120, the first clamping portion 320 is disposed in the clamping hole 210, and the first clamping portion 320 can be clamped with the sidewall of the clamping hole 210 to fix the circuit board 200; when the circuit board 200 is disassembled, only two side walls of the charging elastic sheet 300 need to be pulled open outwards, so that the first clamping portion 320 is separated from the clamping hole 210, the circuit board 200 can be pulled out from the charging elastic sheet 300 along the inserted direction, the disassembly and the assembly are convenient, and the stability performance is good. In addition, the charging spring plate 300 is a sheet-shaped symmetrical structure, and the heat dissipation effect and the connection reliability are good.

Further, the top end of the first clamping portion 320 extends away from the bottom end of the charging spring 300 to form an opening portion 340, and the two opening portions 340 are bent away from each other. In this embodiment, the two opening portions 340 bent back to each other facilitate the insertion of the circuit board 200 from the opening at the top end of the charging spring 300, and facilitate the opening of the two side walls of the charging spring 300.

Further, the side wall and the end face of the clamping hole 210 clamped with the first clamping portion 320 are plated with metal so as to further weld the circuit board 200 and the charging spring plate 300 firmly. Preferably, the metal plated on the side wall and the adjacent end surface of the clamping hole 210 clamped with the first clamping part 320 may be metallic tin.

Further, two opposite side walls of the charging spring 300 are provided with second clamping portions 330 protruding inwards, and the circuit board 200 is provided with second grooves connected with the second clamping portions 330 in a matching manner. Specifically, the second clamping portion 330 is formed by bending the charging spring 300. In this embodiment, when the circuit board 200 is inserted from the top opening of the charging spring plate 300, the insertion end of the circuit board 200 abuts against the inner end face of the tail cover 120, the first clamping portion 320 is arranged in the clamping hole 210, and the first clamping portion 320 can be clamped with the side wall of the clamping hole 210, the second clamping portion 330 is arranged in the second groove, so that the charging spring plate 300 can better fix the circuit board 200 on the tail cover 120.

Further, the bottom end of the charging spring 300 is disposed outside the housing 100, and the charging contact 310 is disposed on the outer end surface of the bottom end of the charging spring 300. Specifically, the bottom end of the charging spring 300 is fixedly connected to the housing 100. Specifically, the outer end face of the bottom end of the charging spring 300 is arranged on the outer side of the outer end face of the tail cover 120, the bottom end of the charging spring 300 is connected with the tail cover 120 in an integrated injection molding mode, and the integrated injection molding connection part of the charging spring 300 and the tail cover 120 is in a U-shaped shape, so that the charging spring 300 and the shell 100 are fixedly connected more stably.

In this embodiment, the circuit board 200 and the two opposite side walls of the charging elastic sheet 300 are tightly matched and clamped with the clamping hole 210 through the first clamping portion 320, so that the connection reliability of the charging elastic sheet 300 and the circuit board 200 is improved, the heat dissipation area of the charging elastic sheet 300 is large, and the charging stability and the charging efficiency of the flashlight are guaranteed when a large current is charged.

Example two

The charging connection device provided in this embodiment is suitable for a situation where the flashlight has more functions and a plurality of circuit boards 200 are provided, and in this embodiment, two circuit boards 200 are preferably provided. Referring to fig. 7 to 10, the charging connection device of the present embodiment is different from the first embodiment in that one of the circuit boards 200 of the flashlight is connected and fixed to the charging spring 300.

In the present embodiment, referring to fig. 7, the housing 100 is provided with a first card slot 122 for plugging the circuit board 200. Specifically, a first card slot 122 opens on tail cap 120. In the present embodiment, the circuit board 200 is inserted into the first card slot 122, and the position of the circuit board 200 is limited by the first card slot 122. Further, the first card slots 122 are provided in a plurality and are arranged in pairs, and the plurality of pairs of first card slots 122 are arranged in one-to-one correspondence with the plurality of circuit boards 200.

Further, referring to fig. 8 to 9, a plurality of third fastening parts 350 are disposed at a first end of the charging spring 300, and a plurality of connection slots 220 connected to the third fastening parts 350 in a one-to-one correspondence are disposed on the circuit board 200. Specifically, the third engaging portion 350 is bent from the charging spring 300 to form a hook shape. In the present embodiment, when the circuit board 200 is inserted into the first card slot 122, the third card connecting portion 350 is clamped in the connecting slot 220 and is matched with the first card slot 122 to fix the circuit board 200 on the tail cover 120.

Further, the charging spring plate 300 is bent for multiple times to form the receding groove 370, so as to reduce the contact area between the charging spring plate 300 and the circuit board 200, and the side wall of the charging spring plate 300 provided with the third clamping portion 350 is attached to the circuit board 200. In the present embodiment, the third engaging portion 350 of the charging spring 300 is conveniently separated from the connecting groove 220 by the provision of the relief groove 370.

Further, the side wall and the end face of the connection groove 220 connected to the third connecting portion 350 are plated with metal so as to further weld the circuit board 200 and the charging spring 300 firmly. Preferably, the metal plated on the side wall and the end surface of the connection groove 220 engaged with the third engaging portion 350 may be tin metal.

Further, the second end of the charging spring 300 is bent to form a fixing portion 360, and the charging spring 300 is fixedly connected to the tail cover 120 through the fixing portion 360. Specifically, the fixing portion 360 is integrally injection molded with the tail cap 120. Further, the charging contact 310 is disposed on an end portion of the fixing portion 360 disposed outside the housing 100. Specifically, the fixing portion 360 is disposed in the tail cover 120, the charging contact 310 is disposed on an end surface of the fixing portion 360, the end surface of the fixing portion 360 is disposed outside an outer end surface of the tail cover 120, and the charging contact 310 is also disposed in a groove formed on the outer end surface of the tail cover 120.

Further, referring to fig. 10, a positioning hook 125 is disposed on the tail cover 120, and a second card slot that is connected to the positioning hook 125 in a matching manner is disposed on the circuit board 200. When the circuit board 200 is inserted into the first slot 122, the hook is engaged with the second slot, so that the connection between the circuit board 200 and the tail cover 120 is more stable.

Further, one end of the tail cover 120 facing the barrel 110 is provided with a plurality of circular arc protrusions 126 at intervals along the circumferential direction, and the outer side walls of the circular arc protrusions 126 can simultaneously abut against the inner side walls of the barrel 110, so that the barrel 110 is aligned when being connected with the tail cover 120.

Other structures of the charging connection device provided in this embodiment are the same as those of the first embodiment, and are not described in detail herein.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A charging connection device, arranged on a flashlight, capable of being electrically connected with a charger, the flashlight comprising a casing (100) and a rechargeable battery arranged in the casing (100), characterized in that, comprising:

a circuit board (200), arranged in the casing (100), and the circuit board (200) is electrically connected to the rechargeable battery;

A charging shrapnel (300), the first end of the charging shrapnel (300) is electrically connected to the circuit board (200), and the second end of the charging shrapnel (300) passes through the casing (100) and can be connected to the circuit board (200). The charger is electrically connected.

2 . The charging connection device according to claim 1 , wherein the housing ( 100 ) comprises a barrel body ( 110 ) and a tail cover ( 120 ) connected to the barrel body ( 110 ), and the barrel body (110) and the tail cover (120) form an installation cavity, and both the circuit board (200) and the rechargeable battery are arranged in the installation cavity.

3 . The charging connection device according to claim 2 , wherein the tail cover ( 120 ) and the charging elastic sheet ( 300 ) are integrally injection-molded. 4 .

4. The charging connection device according to claim 2, characterized in that, a charging contact (310) is provided on the end face of the second end of the charging elastic piece (300) placed outside the casing (100), so The charging contacts (310) can be electrically connected to the charger.

5 . The charging connection device according to claim 4 , wherein a first groove ( 121 ) is formed on the outer end surface of the tail cover ( 120 ), and the charging contact ( 310 ) is provided on the in the first groove (121).

6. The charging connection device according to any one of claims 1 to 5, wherein when one circuit board (200) is provided, the charging elastic piece (300) is U-shaped, and the circuit board (200) is disposed between two opposite side walls of the charging elastic piece (300), and both the opposite side walls of the charging elastic piece (300) are in contact with the circuit board (200).

7 . The charging connection device according to claim 6 , wherein the ends of the two opposite side walls of the charging elastic piece ( 300 ) are provided with first clamping portions ( 320 ), and the circuit board ( 200 ) ) is provided with a clamping hole (210) matched with the first clamping part (320), and the bottom end of the charging elastic piece (300) is fixedly connected with the casing (100).

8 . The charging connection device according to claim 6 , wherein the two side walls of the charging elastic piece ( 300 ) are provided with second engaging parts ( 330 ) protruding inward, and the circuit board ( 200 ) ) is provided with a second groove that is matched and connected with the second clamping portion (330).

9. The charging connection device according to any one of claims 1 to 5, characterized in that, when a plurality of circuit boards (200) are provided, the casing (100) is provided with an opening for plugging the circuit boards The first card slot (122) of (200);

The first end of the charging elastic piece (300) is provided with a plurality of third clamping parts (350), and the circuit board (200) is provided with a plurality of third clamping parts (350) which are connected in one-to-one correspondence with the third clamping parts (350). connection slot (220).

10 . The charging connection device according to claim 9 , wherein a fixing portion ( 360 ) is bent at the second end of the charging elastic piece ( 300 ), and the charging elastic piece ( 300 ) passes through the fixing portion ( 10 . 360) is fixedly connected to the casing (100).