CN211720987U

CN211720987U - Battery protection board with high temperature protection function

Info

Publication number: CN211720987U
Application number: CN202020810549.8U
Authority: CN
Inventors: 何端贵
Original assignee: Shenzhen Jialehua Electronics Co ltd
Current assignee: Shenzhen Jialehua Electronics Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-10-20
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to the technical field of batteries, and a battery protection shield with high temperature protect function is disclosed, including protection box and battery protection shield body, protection box's preceding lateral wall seted up with battery protection shield body assorted opening, the equal fixedly connected with slider in both ends about battery protection shield body, and the protection box about the inside wall all seted up with slider assorted bar spout, the top of two sliders all is equipped with the fixture block, and two sliders all seted up with fixture block assorted recess, all fixed being equipped with first spring between the lower extreme of two fixture blocks and the tank bottom of two draw-in grooves, the last lateral wall of two draw-in grooves all seted up with fixture block assorted draw-in groove, and the last lateral wall of two draw-in grooves has all seted up and has accomodate the groove. The utility model discloses can seal the protection to the battery protection shield, prevent that the dust from piling up, influence battery protection shield work, can avoid appearing sealed back influence battery protection shield radiating condition simultaneously.

Description

Battery protection board with high temperature protection function

Technical Field

The utility model relates to a battery technology field especially relates to a battery protection shield with high temperature protect function.

Background

The lithium battery protection board is mainly an integrated circuit board which plays a protection role for rechargeable (generally referred to as a lithium battery), the lithium battery (rechargeable type) needs to be protected and is determined by the characteristics of the lithium battery, and the lithium battery cannot be overcharged, overdischarged, overflowed, short-circuited and ultra-high-temperature charging and discharging due to the fact that the material of the lithium battery determines that the lithium battery cannot be overcharged, overdischarged, short-circuited and ultra-high-temperature charging and discharging, so that a lithium battery assembly of the lithium battery always follows the protection board with a sampling resistor and a current.

At present, the protection board usually includes a control IC, an MOS switch, a precision resistor and an auxiliary device NTC, an ID memory, a PCB, etc., where the control IC controls the MOS switch to be turned on under all normal conditions to communicate the battery cell with an external circuit, and when the voltage of the battery cell or the current of the circuit exceeds a predetermined value, it immediately controls the MOS switch to be turned off to protect the safety of the battery cell, the NTC is a negative temperature coefficient, and when the ambient temperature rises, the resistance value decreases, and the battery cell or the charging device reacts in time to control the internal interruption to stop charging and discharging, so as to protect the battery at high temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art battery protection shield and installing the back, the components and parts on the circuit board are directly exposed outside, are easily infected with the dust, pile up for a long time, easily influence the problem of battery protection shield work, and the battery protection shield who has high temperature protect function that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a battery protection board with a high-temperature protection function comprises a protection box and a battery protection board body, wherein an opening matched with the battery protection board body is formed in the front side wall of the protection box, sliding blocks are fixedly connected to the left end and the right end of the battery protection board body, bar-shaped sliding grooves matched with the sliding blocks are formed in the left inner side wall and the right inner side wall of the protection box, clamping blocks are arranged above the two sliding blocks, grooves matched with the clamping blocks are formed in the two sliding blocks, first springs are fixedly arranged between the lower ends of the two clamping blocks and the bottom of the two clamping grooves, clamping grooves matched with the clamping blocks are formed in the upper side walls of the two clamping grooves, accommodating grooves are formed in the upper side walls of the two clamping grooves, T-shaped ejecting rods are arranged in the two accommodating grooves in a sliding mode, and second springs are fixedly arranged between the bottoms of the two accommodating grooves and the horizontal rod walls of the two T-, two the common fixedly connected with connecting rod of the horizontal part one end in opposite directions of T shape knock-out pin, and two lateral wall upper ends of accomodating groove one side in opposite directions all seted up with connecting rod assorted bar through-hole, the last wall of the staff fixedly connected with T shape button of connecting rod, and the upper end of protection box set up with T shape button assorted round hole, a plurality of evenly distributed's logical line hole has been seted up to the rear side wall of protection box, battery protection shield body electric connection has a plurality of terminals, and a plurality of terminals are located the inside slip setting in a plurality of logical line holes respectively, the front end fixedly connected with connecting block of battery protection shield body, and the front end fixedly connected with of connecting block seals the apron, and the preceding lateral wall of protection box sets up the first seal groove that matches mutually with sealed apron.

Preferably, the left outer side wall and the right outer side wall of the protection box are fixedly connected with a plurality of uniformly distributed radiating fins.

Preferably, the fixed cover of pole wall of T shape button has connect first sealing ring, and the lateral wall of round hole set up with first sealing ring assorted first annular seal groove, and is a plurality of the pole wall of terminal has all fixedly cup jointed the second sealing ring, and a plurality of lateral walls that lead to the line hole all set up with second sealing ring assorted second annular seal groove.

Preferably, the upper ends of the rear side walls of the two clamping blocks are both obliquely arranged.

Preferably, the rear end of the battery protection plate body is fixedly connected with a plurality of uniformly distributed support rods, and the rear end of each support rod group is fixedly connected with the left end and the right end of the front side wall of the wiring terminal at the same side respectively.

Preferably, the front side wall of the sealing cover plate is fixedly connected with a pull rod.

Compared with the prior art, the utility model provides a battery protection shield with high temperature protect function possesses following beneficial effect:

1. the battery protection board with the high-temperature protection function can protect a battery by the mutual matching of the battery protection board body and the plurality of terminals, the battery protection board body and the protection box can be quickly clamped by the mutual matching of the protection box, the two sliding blocks, the two clamping blocks and the two first springs, the battery protection board can be quickly disassembled and separated by the mutual matching of the connecting rod, the two T-shaped ejector rods, the two second springs and the T-shaped button, the disassembly and separation are simple and convenient, the protection box can be sealed by the mutual matching of the connecting block and the sealing cover board, and the battery protection board is prevented from being exposed to the outside and from being influenced by dust accumulation;

2. this battery protection shield with high temperature protect function through mutually supporting of a plurality of fin that are equipped with, can increase the heat radiating area of protection box to can avoid appearing sealed back influence battery protection shield radiating condition, through mutually supporting of the multiunit bracing piece that is equipped with, can be convenient for insert the inside in a plurality of line holes with a plurality of terminals.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can seal the protection to the battery protection shield, prevent that the dust from piling up, influence battery protection shield work, can avoid appearing sealed back influence battery protection shield radiating condition simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a battery protection plate with a high temperature protection function according to the present invention;

FIG. 2 is a schematic top view of the portion of FIG. 1;

FIG. 3 is an enlarged view of the portion A in FIG. 1;

fig. 4 is a schematic side view of the latch shown therein.

In the figure: the protective device comprises a protective box 1, a battery protective plate body 2, a sliding block 3, a clamping block 4, a first spring 5, a T-shaped ejection rod 6, a second spring 7, a connecting rod 8, a T-shaped button 9, a binding post 10, a connecting block 11, a sealing cover plate 12, a radiating fin 13, a first sealing ring 14, a second sealing ring 15, a supporting rod 16 and a pull rod 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a battery protection board with high temperature protection function comprises a protection box 1 and a battery protection board body 2, wherein the front side wall of the protection box 1 is provided with an opening matched with the battery protection board body 2, the left and right ends of the battery protection board body 2 are both fixedly connected with sliding blocks 3, the left and right inner side walls of the protection box 1 are both provided with strip-shaped sliding grooves matched with the sliding blocks 3, clamping blocks 4 are respectively arranged above the two sliding blocks 3, the two sliding blocks are both provided with grooves matched with the clamping blocks, a first spring 5 is fixedly arranged between the lower ends of the two clamping blocks 4 and the bottom of the two clamping grooves, the upper side walls of the two clamping grooves are both provided with clamping grooves matched with the clamping blocks 4, the upper side walls of the two clamping grooves are both provided with accommodating grooves, the inside of the two accommodating grooves are both slidably provided with T-shaped ejector rods 6, and second springs 7 are fixedly arranged between the bottom of the two accommodating grooves and the, the common fixedly connected with connecting rod 8 of the horizontal part one end in opposite directions of two T shape ejector pins 6, and two lateral wall upper ends of accomodating groove one side in opposite directions all seted up with connecting rod 8 assorted bar through-hole, the last wall fixedly connected with T shape button 9 of connecting rod 8, and the upper end of protection box 1 set up with T shape button 9 assorted round hole, a plurality of evenly distributed's logical line hole has been seted up to the rear side wall of

protection box

1, 2 electric connection of battery protection shield body have a plurality of terminals 10, and a plurality of terminals 10 are located the inside slip setting in a plurality of logical line holes respectively, the front end fixedly connected with connecting block 11 of battery protection shield body 2, and the front end fixedly connected with sealed apron 12 of connecting block 11, and the preceding lateral wall of protection box 1 set up with sealed apron 12 assorted first seal groove.

The equal fixedly connected with a plurality of evenly distributed's of two lateral walls fin 13 about protection box 1, can increase protection box 1's heat radiating area to after the sealing, can not influence the heat dissipation of battery protection shield body 2.

The fixed cover of pole wall of T shape button 9 has connect first sealing ring 14, and the lateral wall of round hole set up with first sealing ring 14 assorted first annular seal groove, the pole wall of a plurality of terminals 10 has all fixedly cup jointed second sealing ring 15, and a plurality of lateral walls that lead to the line hole all set up with second sealing ring 15 assorted second annular seal groove, can increase the leakproofness between T shape button 9 and the round hole, and increase the leakproofness between a plurality of terminals 10 and a plurality of line holes, reduce the entering volume of dust.

The upper ends of the rear side walls of the two fixture blocks 4 are obliquely arranged, so that people can conveniently place the two fixture blocks 4 into the strip-shaped sliding groove.

The rear end fixedly connected with bracing piece 16 of a plurality of evenly distributed of battery protection shield body 2, and the rear end of every group bracing piece 16 respectively with the preceding lateral wall left and right ends fixed connection of homonymy terminal 10, can increase and be connected the steadiness between battery protection shield body 2 and a plurality of terminal 10 to conveniently put into a plurality of wire holes with a plurality of terminal 10 inside.

The front side wall of the sealing cover plate 12 is fixedly connected with a pull rod 17, and the sealing cover plate 12 can move forwards by pulling the pull rod 17, and is convenient to pull.

In the utility model, when in use, the battery is connected with the plurality of terminals 10 by the wires through the battery protection board body 2 and the plurality of terminals 10, the battery can be protected, the battery protection board body 2 and the protection box 1 can be quickly clamped through the protection box 1, the two sliders 3, the two fixture blocks 4 and the two first springs 5, the two fixture blocks 4 are put into the two strip-shaped chutes to slide, the two chutes can extrude the fixture blocks 4, when the two fixture blocks 4 move to the two chute positions, the two fixture blocks 4 can enter the two clamping grooves under the action of the two first springs 5, thereby the two sliders 3 can be effectively limited, and further the battery protection board body 2 can be stably fixed, through the connecting rod 8, the two T-shaped ejector rods 6, the two second springs 7 and the T-shaped button 9, when battery protection shield body 2 is dismantled to needs, press T shape button 9, can make connecting rod 8 remove downwards, thereby can make two T shape ejector pins 6 remove downwards, thereby can be with two 4 ejecting draw-in grooves of two fixture blocks, pulling battery protection shield body 2, can dismantle the separation to battery protection shield body 2 fast, and it is simple convenient to dismantle the separation, through connecting block 11 and the sealed apron 12 that are equipped with, can seal protection box 1, after the installation, can avoid battery protection shield body 2 to expose outside, the dust is piled up and is influenced battery protection shield work.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A battery protection board with a high-temperature protection function comprises a protection box (1) and a battery protection board body (2), and is characterized in that an opening matched with the battery protection board body (2) is formed in the front side wall of the protection box (1), sliders (3) are fixedly connected to the left end and the right end of the battery protection board body (2), bar-shaped sliding grooves matched with the sliders (3) are formed in the left inner side wall and the right inner side wall of the protection box (1), clamping blocks (4) are arranged above the two sliders (3), grooves matched with the clamping blocks are formed in the two sliders, first springs (5) are fixedly arranged between the lower ends of the two clamping blocks (4) and the bottoms of the two clamping grooves, clamping grooves matched with the clamping blocks (4) are formed in the upper side walls of the two clamping grooves, and accommodating grooves are formed in the upper side walls of the two clamping grooves, t-shaped ejector rods (6) are arranged inside the two accommodating grooves in a sliding mode, a second spring (7) is fixedly arranged between the bottoms of the two accommodating grooves and the horizontal rod walls of the two T-shaped ejector rods (6), the opposite ends of the horizontal parts of the two T-shaped ejector rods (6) are fixedly connected with connecting rods (8) together, the upper ends of the side walls of the opposite sides of the two accommodating grooves are provided with strip-shaped through holes matched with the connecting rods (8), the upper rod wall of each connecting rod (8) is fixedly connected with a T-shaped button (9), the upper end of each protection box (1) is provided with a round hole matched with the T-shaped button (9), the rear side wall of each protection box (1) is provided with a plurality of uniformly distributed through wire holes, the battery protection plate body (2) is electrically connected with a plurality of binding posts (10), and the binding posts (10) are respectively arranged inside the through wire holes in a sliding mode, the front end fixedly connected with connecting block (11) of battery protection shield body (2), and the front end fixedly connected with of connecting block (11) seals apron (12), and the preceding lateral wall of protection box (1) seted up with sealed apron (12) assorted first seal groove.

2. The battery protection board with high temperature protection function according to claim 1, wherein a plurality of evenly distributed heat dissipation fins (13) are fixedly connected to both left and right outer side walls of the protection box (1).

3. The battery protection board with the high-temperature protection function according to claim 1, wherein a first sealing ring (14) is fixedly sleeved on a rod wall of the T-shaped button (9), a first annular sealing groove matched with the first sealing ring (14) is formed in a side wall of the circular hole, a second sealing ring (15) is fixedly sleeved on rod walls of the plurality of wiring posts (10), and a second annular sealing groove matched with the second sealing ring (15) is formed in a side wall of the plurality of through hole.

4. The battery protection plate with the high temperature protection function as claimed in claim 1, wherein the upper ends of the rear side walls of the two blocks (4) are both inclined.

5. The battery protection board with the high temperature protection function according to claim 1, wherein a plurality of uniformly distributed support rods (16) are fixedly connected to the rear end of the battery protection board body (2), and the rear end of each support rod (16) is fixedly connected to the left and right ends of the front side wall of the terminal post (10) on the same side.

6. The battery protection board with high temperature protection function as claimed in claim 1, wherein a tie bar (17) is fixedly connected to the front side wall of the sealing cover plate (12).