CN211719647U

CN211719647U - Button battery box

Info

Publication number: CN211719647U
Application number: CN202020295673.5U
Authority: CN
Inventors: 张�荣
Original assignee: Shenzhen Laideer Photoelectric Technology Co ltd
Current assignee: Shenzhen Laideer Photoelectric Technology Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-10-20
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses a button cell box, include casing down, go up casing and IC on-off control circuit board, be provided with two button cell jars and chip holding tank down on the casing, the casing is provided with first shell fragment and second shell fragment down, first shell fragment and second shell fragment be used for connecting button cell with IC on-off control circuit board, IC on-off control circuit board sets up in the chip holding tank for control output current or voltage, it can with lower casing lock to go up the casing, the utility model discloses not only the assembly need not the screw-fastening, and assembly speed is fast, and control output voltage or output current that moreover can be pertinence have improved the life of product.

Description

Button battery box

Technical Field

The utility model relates to a battery case technical field, in particular to button cell box.

Background

In LED decorative lights or LED strings, a battery compartment is typically used for power supply. The button cell box is small in size, is widely applied to small LED lamp strings or decorative lamps, and is usually used for mounting a CR2032 type battery. However, the conventional button battery box is generally divided into an upper box cover and a lower box cover, both the upper box cover and the lower box cover are fastened by screws, but the fastening of the screws requires the cost of two screws, and in addition, the screws are screwed tightly, so that extra assembly time is required; in addition, the button cell box usually adopts the form that two CR2032 are connected in series, but can cause output voltage too high, leads to when supplying power for 3V LED lamp cluster earlier stage bright, probably damages the LED chip and influences the life of LED lamp cluster.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a button cell box, not only the assembly need not screw-fastening, and assembly speed is fast, and control output voltage or output current that moreover can be pertinence have improved the life of product.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a button cell box, includes casing, last casing and IC on-off control circuit board down, be provided with two button cell jars and chip holding tank down on the casing, wherein the button cell jar is used for placing button cell, the casing is provided with first shell fragment and second shell fragment down, first shell fragment and second shell fragment be used for connecting button cell with IC on-off control circuit board, IC on-off control circuit board sets up in the chip holding tank for control output current or voltage, go up the casing can with casing lock down.

The IC switch control circuit board comprises an MCU (micro control unit) and a DC/DC conversion circuit, the MCU outputs PMW signals, the PMW controls two paths of lamp strings (namely, positive and negative sticking) to be alternately lightened or extinguished, various flashing modes are realized through various combinations, and the IC switch control circuit board is used for controlling output current (the MCU realizes the regulation of current or voltage by adjusting the duty ratio of the DC/DC conversion circuit).

Preferably, the first elastic sheet sequentially penetrates through the bottoms of the two button cell slots and is connected with the IC switch control circuit board, the second elastic sheet sequentially penetrates through the side walls of the two button cell slots and is connected with the IC switch control circuit board, the two button cells in the button cell slots are connected in parallel through the first elastic sheet and the second elastic sheet, the output voltage of the button cells can be reduced after the two button cells are connected in parallel, meanwhile, the output current is reduced through the IC switch control circuit board, the output voltage and the output current are in a proper range, and the service life of the LED lamp string is prolonged.

Preferably, the first elastic sheet penetrates through the bottom of a button cell groove close to one side of the IC switch control circuit board and is connected with the IC switch control circuit board, the second elastic sheet penetrates through the side wall of the button cell groove far away from one side of the IC switch control circuit board and is connected with the IC switch control circuit board, the LED lamp string further comprises a third elastic sheet arranged on the inner wall of the upper shell, the first elastic sheet, the second elastic sheet and the third elastic sheet enable two button cells in the button cell groove to be connected in series, output voltage is reduced through the IC switch control circuit board, the output voltage is in a proper range, and the service life of the LED lamp string is prolonged.

Preferably, the IC switch control circuit board is provided with two output pins, the output pins penetrate through the side wall of the lower shell and are used for connecting the LED lamp string, and the output current of the button cell after parallel connection is controlled by the IC switch control circuit board, so that voltage reduction and current reduction are realized, and the service life of the LED lamp string is prolonged.

Preferably, go up the casing and include connecting portion and flip, link to each other through fold portion between connecting portion and the flip, fold portion is convenient for open or close flip, when needing to change button cell, directly open flip change can, it is convenient to use.

Preferably, connecting portion lower part both sides are provided with first fixture block, the casing corresponds the position and is provided with first draw-in groove down, first fixture block and first draw-in groove joint make casing and connecting portion lock down, the lock is inseparable, through connecting portion protection IC switch control circuit board.

Preferably, flip lower part both sides are provided with the second fixture block, the casing corresponds the position and is provided with the second draw-in groove down, second fixture block and second draw-in groove joint make casing and flip lock down, the lock is closely convenient for open in order to change button cell.

Preferably, the lower part of the one end of connecting portion is kept away from to flip is provided with interior edge portion, the casing corresponds the position and is provided with the jut down, works as when flip lock is at the casing down, interior edge portion downside and jut upside butt are convenient for open flip as the stress point with interior edge portion.

Preferably, be provided with the silica gel on the IC on-off control circuit board and press the key cap, the silica gel presses the key cap to pass through-hole salient on the connecting portion is in outside the connecting portion, the silica gel presses the key cap to play the effect of switch and switching lamp cluster scintillation mode, thereby opens the purpose that reaches control output current and voltage according to key cap control MCU through the silica gel, can switch the various scintillation modes of connecting output pin connection lamp cluster simultaneously.

Preferably, one side that the lower casing is close to the chip holding tank is provided with the slot, through inserting the insulating piece of slot makes first shell fragment separate with IC switch control circuit board contact jaw, ensures thoroughly outage before the product uses, takes out the insulating piece during the use and can normally use.

The button battery box of the utility model can realize the series connection of the button batteries and the parallel connection of the button batteries; when the button cell is connected in series, although the current is easy to control, the voltage is higher, but the utility model adds an IC switch control circuit board in the button cell box, and the voltage is adjusted by the principle of MCU adjusting the duty ratio of the DC/DC conversion circuit, thereby realizing the purpose of reducing the output voltage; when the voltage is connected in parallel, the voltage is easy to control, but the output current is increased, at the moment, the IC switch control circuit board in the button cell box can be used, the current is adjusted through the principle that the MCU adjusts the duty ratio of the DC/DC conversion circuit, and the purpose of reducing the output current is achieved.

The utility model has the advantages that:

the utility model has the defects of the prior art that the upper shell and the lower shell are provided with the buckling structures, thereby facilitating the assembly and reducing the cost; meanwhile, an IC switch control circuit board is arranged aiming at the condition that the two button batteries are connected in series or in parallel, the output voltage of the two button batteries after being connected in series is controlled to be output in a proper range, or the current of the two button batteries connected in parallel is controlled to be output in a proper range, so that the service time of the LED lamp string is ensured; the utility model discloses not only the assembly need not the screw-fastening, and the assembly speed is fast, and control output voltage or output current that moreover can be pertinence have improved the life of product.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the inside of the lower case in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the inside of the upper case in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of the inside of the lower case in embodiment 2 of the present invention;

fig. 5 is a schematic structural view of the inside of the upper housing in embodiment 2 of the present invention;

reference numerals: 1-a lower shell; 11-button battery jar; 12-a first card slot; 13-a protrusion; 14-a spring plate slot; 15-a second card slot; 16-a limiting block; 2-an upper shell; 21-a connecting part; 211-a through hole; 212-a first cartridge; 22-a flip cover; 221-a second fixture block; 222-an inner edge portion; 23-a corrugated portion; 3-IC switch control circuit board; 31-an output pin; 32-silica gel key cap; 4-a first spring plate; 41-button cell contact end; 42-an extension end; 5-a second elastic sheet; 6-slot; 7-third shrapnel.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1-3, a button cell box includes a lower case 1, an upper case 2, and an IC switch control circuit board 3, where the lower case 1 is provided with two button cell slots 11 and a chip accommodating slot (for accommodating the IC switch control circuit board 3), where the button cell slots 11 are used for accommodating button cells (in this embodiment, button cells of CR2032 type are specifically selected, and anodes of both button cells are placed facing upward), and the lower case 1 is provided with a first elastic sheet 4 and a second elastic sheet 5; in this embodiment, the first elastic sheet 4 sequentially penetrates through the bottoms of the two button cell slots 11 to be connected with the IC switch control circuit board 3 (the first elastic sheet 4 includes a button cell contact end 41 and an extension end 42, the extension end 42 is attached to the inner surface of the lower shell 1, the button cell contact end 41 is bent upwards and tilted, so that the cathodes of the button cells are connected in parallel and then connected with the IC switch control circuit board 3), an elastic sheet clamping slot 14 is arranged at the bottom of the lower shell 1, the elastic sheet clamping slot 14 extends from the bottom of the chip accommodating slot to the bottoms of the two button cell slots 11, and the first elastic sheet 4 is clamped and embedded in the elastic sheet clamping slot 14; the second elastic sheet 5 sequentially penetrates through the side walls of the two button cell grooves 11 to be connected with the IC switch control circuit board 3 (the second elastic sheet 5 is provided with two arched parts, each arched part correspondingly extends into the button cell groove 11 and is used for being in contact with the positive electrode of the button cell, the positive electrodes of the button cells are connected in parallel and then connected with the IC switch control circuit board 3), the button cells in the two button cell grooves 11 are connected in parallel through the first elastic sheet 4 and the second elastic sheet 5, and the output voltage of the button cells can be reduced after the button cells are connected in parallel;

in this embodiment, the two sides of the chip accommodating groove are provided with the limiting blocks 16 for fixing the IC switch control circuit board 3 and preventing the IC switch control circuit board 3 from shifting due to shaking to affect the contact effect of the first elastic sheet 4 and the second elastic sheet 5; the IC switch control circuit board 3 comprises an MCU (micro control unit) and a DC/DC conversion circuit, a PMW signal is output through the MCU, the PMW controls two paths of lamp strings (namely positive and negative sticking) to be alternately lightened or extinguished, various flashing modes are realized through various combinations, the IC switch control circuit board 3 is used for controlling output current (the MCU realizes current regulation by adjusting the duty ratio of the DC/DC conversion circuit), and the upper shell 2 can be buckled with the lower shell 1 without screw fastening.

In this embodiment, the IC switch control circuit board 3 is provided with two output pins 31, the output pins 31 penetrate through the side wall of the lower casing 1 and are used for connecting the LED lamp string, the output voltage of the button battery after parallel connection is reduced relative to the case of serial connection, the output current is increased, and the output current is reduced through the IC switch control circuit board 3 at this time, so that the purpose of voltage reduction and current reduction is achieved, and the service life of the LED lamp string can be effectively prolonged.

In this embodiment, the upper housing 2 includes the connecting portion 21 and the flip 22, link to each other through the fold portion 23 between the connecting portion 21 and the flip 22, the fold portion 23 is the rugate structure, the fold portion 23 is convenient for open or close the flip 22, when needing to change the button cell, directly open the flip 22 and change can, it is convenient to use.

In this embodiment, first fixture blocks 212 are disposed on two sides of the lower portion of the connecting portion 21, a first clamping groove 12 is disposed at a corresponding position of the lower housing 1, and the first fixture blocks 212 are clamped with the first clamping groove 12, so that the lower housing 1 and the connecting portion 21 are fastened and tightly fastened, and the IC switch control circuit board 3 is protected by the connecting portion 21.

In this embodiment, two sides of the lower portion of the flip 22 are provided with second clamping blocks 221, a second clamping groove 15 is disposed at a position corresponding to the lower housing 1, and the second clamping blocks 221 are clamped with the second clamping grooves 15, so that the lower housing 1 and the flip 22 are fastened and the fastening is tightly and conveniently opened to replace the button battery.

In this embodiment, an inner edge 222 is disposed at a lower portion of one end of the flip 22 away from the connecting portion 21, a protrusion 13 is disposed at a corresponding position of the lower housing 1, and when the flip 22 is fastened to the lower housing 1, a lower side of the inner edge 222 abuts against an upper side of the protrusion 13, so that the flip 22 is opened by taking the inner edge 222 as a stress point.

In this embodiment, be provided with silica gel key cap 32 on the IC switch control circuit board 3 (silica gel key cap 32 is connected with IC switch control circuit board 3 electricity), silica gel key cap 32 passes through-hole 211 on the connecting portion 21 is outstanding outside the connecting portion 21, silica gel key cap 32 plays the switch and switches the effect of lamp cluster scintillation mode, thereby opens the purpose that reaches output current through silica gel key cap 32 control MCU, can switch simultaneously and connect various scintillation modes of output pin 31 connection lamp cluster.

In this embodiment, one side of the lower shell 1 close to the chip accommodating groove is provided with a slot 6, and the first elastic sheet 4 is separated from the contact end of the IC switch control circuit board 3 by inserting the insulating sheet of the slot 6, so that complete power failure is ensured before the product is used, and the insulating sheet can be normally used after being taken out during use.

Before using, open flip 22 along fold portion 23, put into button cell and close flip 22 in button cell jar 11, two button cell pass through second shell fragment 5 and first shell fragment 4 and connect in parallel this moment, parallelly connected back, output voltage reduces, but output current has increased, can utilize IC switch control circuit board 3 in the button cell box this moment, adjust the principle regulating current of DC/DC converting circuit's duty cycle through MCU, with the parallelly connected current control of two button cell to suitable scope output, guarantee the life of LED lamp cluster.

Example 2

Different from embodiment 1, as shown in fig. 1, 3 and 4, a button cell box includes a lower case 1, an upper case 2 and an IC switch control circuit board 3, wherein the lower case 1 is provided with two button cell slots 11 and a chip accommodating slot (for accommodating the IC switch control circuit board 3), the button cell slot 11 is used for accommodating a button cell (in this embodiment, a button cell of CR2032 type is specifically selected, and the button cell anode far from one side of the IC switch control circuit board 3 is placed downwards, and the other button cell anode is placed upwards), in this embodiment, the first elastic sheet 4 penetrates through the bottom of the button cell slot 11 near one side of the IC switch control circuit board 3 and is connected with the IC switch control circuit board 3 (the first elastic sheet 4 includes a button cell contact end 41 and an extension end 42, the extension end 42 is attached to the inner surface of the lower case 1, the button cell contact end 41 is bent upwards and tilted and contacts with the negative electrode of the button cell close to one side of the IC switch control circuit board 3), the second elastic sheet 5 penetrates through the side wall of the button cell groove 11 far away from one side of the IC switch control circuit board 3 and is connected with the IC switch control circuit board 3 (the second elastic sheet 5 is provided with an arched part which correspondingly extends into the button cell groove 11 far away from one side of the IC switch control circuit board 3 and is used for contacting with the positive electrode of the button cell far away from one side of the IC switch control circuit board 3), the button cell further comprises a third elastic sheet 7 arranged on the inner wall of the upper shell 2 (the third elastic sheet 7 is clamped and embedded in the upper shell 2, two ends of the third elastic sheet 7 are raised, one end of the third elastic sheet is contacted with the negative electrode of the button cell far away from one side of the IC switch control circuit board 3, and the other end of the third elastic sheet is contacted with the positive electrode of the button cell close, the button batteries in the two button battery grooves 11 are connected in series through the first elastic sheet 4, the second elastic sheet 5 and the third elastic sheet 7, and the IC switch control circuit board 3 is arranged in the chip accommodating groove and used for controlling output voltage (MCU realizes voltage regulation by adjusting the duty ratio of the DC/DC conversion circuit).

The upper case 2 and the lower case 1 are fastened in the present embodiment in the same manner as in embodiment 1.

Before using, open flip 22 along fold portion 23, put into button cell toward button cell 11, one of them button cell negative pole is placed upwards, another button cell positive pole is placed upwards, and close flip 22, two button cells realize establishing ties through first shell fragment 4, second shell fragment 5 and third shell fragment 7 this moment, after establishing ties two button cells, although the electric current is easily controlled, output voltage is higher, MCU adjustment DC/DC converting circuit's on the control circuit board of IC switch this moment duty cycle through, thereby reach voltage regulation's purpose, output voltage control to suitable scope output, guarantee the life of LED lamp cluster.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a button cell box, includes casing (1), upper housing (2) and IC switch control circuit board (3) down, its characterized in that: the improved button cell module is characterized in that two button cell grooves (11) and a chip accommodating groove are formed in the lower shell (1), a first elastic sheet (4) and a second elastic sheet (5) are arranged on the lower shell (1), the first elastic sheet (4) and the second elastic sheet (5) are used for connecting a button cell with the IC switch control circuit board (3), the IC switch control circuit board (3) is arranged in the chip accommodating groove and used for controlling output current or voltage, and the upper shell (2) can be buckled with the lower shell (1).

2. A button cell cartridge as defined in claim 1, wherein: the first elastic sheet (4) sequentially penetrates through the bottoms of the two button cell grooves (11) to be connected with the IC switch control circuit board (3), the second elastic sheet (5) sequentially penetrates through the side walls of the two button cell grooves (11) to be connected with the IC switch control circuit board (3), and the two button cells in the button cell grooves (11) are connected in parallel through the first elastic sheet (4) and the second elastic sheet (5).

3. A button cell cartridge as defined in claim 1, wherein: the first elastic sheet (4) penetrates through the bottom of a button cell groove (11) close to one side of the IC switch control circuit board (3), and is connected with the IC switch control circuit board (3), the second elastic sheet (5) penetrates through the side wall of the button cell groove (11) far away from one side of the IC switch control circuit board (3), and is connected with the IC switch control circuit board (3), and the first elastic sheet, the second elastic sheet and the third elastic sheet (7) are arranged on the inner wall of the upper shell (2), and the first elastic sheet (4), the second elastic sheet (5) and the third elastic sheet (7) enable two button cells in the button cell groove (11) to be connected in series.

4. A button cell cartridge as defined in claim 1, wherein: the IC switch control circuit board (3) is provided with two output pins (31), and the output pins (31) penetrate through the side wall of the lower shell (1) and are used for being connected with the LED lamp string.

5. A button cell cartridge as defined in claim 4, wherein: go up casing (2) including connecting portion (21) and flip (22), link to each other through fold portion (23) between connecting portion (21) and flip (22), fold portion (23) are convenient for open or close flip (22).

6. A button cell cartridge as defined in claim 5, wherein: first fixture blocks (212) are arranged on two sides of the lower portion of the connecting portion (21), first clamping grooves (12) are formed in corresponding positions of the lower shell (1), and the first fixture blocks (212) are connected with the first clamping grooves (12) in a clamped mode to enable the lower shell (1) to be buckled with the connecting portion (21).

7. A button cell cartridge as defined in claim 6, wherein: flip (22) lower part both sides are provided with second fixture block (221), casing (1) corresponds the position and is provided with second draw-in groove (15) down, second fixture block (221) and second draw-in groove (15) joint make casing (1) and flip (22) lock down.

8. A button cell cartridge as defined in claim 7, wherein: the lower part of the end, far away from the connecting part (21), of the flip cover (22) is provided with an inner edge part (222), the corresponding position of the lower shell (1) is provided with a protruding part (13), and when the flip cover (22) is buckled on the lower shell (1), the lower side of the inner edge part (222) is abutted to the upper side of the protruding part (13).

9. A button cell cartridge as defined in claim 8, wherein: be provided with silica gel key cap (32) on IC switch control circuit board (3), silica gel key cap (32) pass through-hole (211) on connecting portion (21) are outstanding outside connecting portion (21).

10. A button cell cartridge as defined in claim 9, wherein: one side of the lower shell (1) close to the chip accommodating groove is provided with a slot (6), and the first elastic sheet (4) is separated from the contact end of the IC switch control circuit board (3) through an insulating sheet inserted into the slot (6).