CN218385572U

CN218385572U - Explosion-proof type lithium battery protection board

Info

Publication number: CN218385572U
Application number: CN202222774884.9U
Authority: CN
Inventors: 张孔飞
Original assignee: Shenzhen Yirongda Electronics Co ltd
Current assignee: Shenzhen Yirongda Electronics Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-24
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses an explosion-proof type lithium battery protection shield, including explosion-proof subassembly, first protection subassembly and second protection subassembly, explosion-proof subassembly includes the backup pad, the control element device group of setting on the backup pad side, install the terminal on the backup pad side and set up the card hole on the backup pad side, first protection subassembly is including holding the box, set up the intercommunication strip hole on holding the box side, a tip fixing is at the telescopic link that holds on the box inner wall, the fin board of setting on another tip of telescopic link, the first elastomeric element of parcel on the telescopic link side, install the nut pipe on the fin board side and set up at the first semicircular groove that holds the uncovered department of box, this kind of explosion-proof type lithium battery protection shield can carry out effectual buffering to the electrical components under the vibrations environment on protection shield and the protection shield, thereby carry out effectual protection to explosion-proof type lithium battery protection shield, prolong the life of this kind of explosion-proof type lithium battery protection shield.

Description

Explosion-proof type lithium battery protection board

Technical Field

The utility model relates to a lithium battery technology field specifically is an explosion-proof type lithium battery protection shield.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution and made of lithium metal or a lithium alloy as a positive/negative electrode material, and are roughly classified into lithium metal batteries and lithium ion batteries, which do not contain lithium in a metallic state and are chargeable.

The range that the lithium cell is popularized is very wide, and in order to ensure safe handling, often use explosion-proof type lithium battery protection shield to protect the lithium cell, however current explosion-proof type lithium battery protection shield can protect the lithium cell, but the service environment of explosion-proof type lithium battery protection shield often accompanies the condition of vibrations, for example the explosion-proof type lithium battery protection shield of on-vehicle usefulness, under the environment that accompanies vibrations, although the protection shield that some metal material made has promoted certain toughness, but the conventional explosion-proof type lithium battery protection shield that lacks the buffering can not effectively cushion vibrations, pin detinning broken circuit appears in each electronic components on the protection shield easily under vibrations many times, even the damage appears in components and parts, thereby lead to the condition that explosion-proof type lithium battery protection shield became invalid.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the explosion-proof lithium battery protection panel of the present application to avoid obscuring the purpose of this section, the abstract of the specification and the explosion-proof lithium battery protection panel, and such simplifications or omissions cannot be used to limit the scope of the present invention.

The utility model discloses the problem that exists in considering above-mentioned and/or current explosion-proof type lithium cell protection shield has been proposed.

Therefore, the utility model aims at providing an explosion-proof type lithium battery protection shield can carry out effectual buffering to protection shield and the electrical components on the protection shield under the vibrations environment to carry out effectual protection to explosion-proof type lithium battery protection shield, prolong the life of this kind of explosion-proof type lithium battery protection shield.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

an explosion-proof lithium battery protection plate, comprising:

the explosion-proof assembly comprises a support plate, a control element assembly arranged on the side surface of the support plate, a terminal arranged on the side surface of the support plate and a clamping hole arranged on the side surface of the support plate;

the first protection assembly comprises a containing box, a communicating strip hole formed in the side face of the containing box, a telescopic rod with one end fixed on the inner wall of the containing box, a fin plate arranged on the other end of the telescopic rod, a first elastic component wrapped on the side face of the telescopic rod, a nut pipe arranged on the side face of the fin plate and a first semicircular groove formed in the opening of the containing box, wherein two ends of the first elastic component are respectively fixed on the side faces of the containing box and the fin plate;

the second protection component, including articulating hold the uncovered department of box apron, run through screw rod, the parcel of apron are in second elastomeric element, setting on the screw rod side are in shift ring on a second elastomeric element tip and seting up second half slot on the apron side, just second elastomeric element's the other end is fixed on the side of apron, the screw rod is respectively with the apron with nut pipe spiro union.

As an explosion-proof type lithium battery protection shield's an preferred scheme, wherein, explosion-proof subassembly first protection component with the second protection component all scribbles the antistatic agent.

As an explosion-proof type lithium battery protection shield's an preferred scheme, wherein, hold and be provided with the connecting plate on the outer wall of box, the butt joint hole has been seted up on the side of connecting plate.

As an explosion-proof type lithium battery protection shield's an preferred scheme, wherein, install the dust screen frame on the inner wall in intercommunication strip hole.

As an explosion-proof type lithium battery protection shield's an preferred scheme, wherein, the terminal is for preventing slow-witted terminal.

As an explosion-proof type lithium battery protection shield's an preferred scheme, wherein, the fin board with be provided with the blotter between the backup pad.

Compared with the prior art, the utility model discloses the beneficial effect who has is: this kind of explosion-proof type lithium battery protection shield forms effective protection through holding box and apron backup pad, control element group and terminal in to the cavity, and the elastic action of the first elastomeric element of rethread and second elastomeric element can carry out effectual buffering to backup pad, control element group and terminal on the fin board side to close each electrical components in the backup pad to the backup pad and reached effectual safeguard effect, prolonged this kind of explosion-proof type lithium battery protection shield's life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic perspective view of an overall structure of an explosion-proof lithium battery protection plate according to the present invention;

fig. 2 is a schematic view of a partial structure of an explosion-proof lithium battery protection plate according to the present invention;

fig. 3 is an enlarged schematic view of a position a in fig. 1 of the explosion-proof lithium battery protection plate of the present invention.

In the figure: 100 explosion-proof components, 110 supporting plates, 120 control element component groups, 130 terminals, 140 clamping holes, 200 first protection components, 210 containing boxes, 220 communicating strip holes, 230 telescopic rods, 240 fin plates, 250 first elastic parts, 260 nut pipes, 270 first semicircular grooves, 211 connecting plates, 212 butt-joint holes, 241 buffer cushions, 300 second protection components, 310 cover plates, 320 screws, 330 second elastic parts, 340 moving rings, 350 second semicircular grooves and 400 dustproof net frames.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in order to describe the embodiments of the present invention in detail, the sectional views showing the device structure will not be enlarged partially according to the general scale for convenience of description, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The utility model provides an explosion-proof type lithium battery protection shield can carry out effectual buffering to protection shield and the electrical components on the protection shield under the vibrations environment to carry out effectual protection to explosion-proof type lithium battery protection shield, prolong this kind of explosion-proof type lithium battery protection shield's life.

Fig. 1 to 3 are schematic structural views illustrating an embodiment of an explosion-proof lithium battery protection plate according to the present invention, and referring to fig. 1 to 3, a main body of the explosion-proof lithium battery protection plate according to the embodiment includes an explosion-proof assembly 100, a first protection assembly 200, and a second protection assembly 300.

The explosion-proof assembly 100 comprises a support plate 110, a control component group 120 arranged on the side face of the support plate 110, a terminal 130 installed on the side face of the support plate 110 and a clamping hole 140 formed in the side face of the support plate 110, wherein the control component group 120 comprises an IC component, an MOS component, a resistance element, a capacitance element and other existing explosion-proof control components, so that effective overvoltage, undervoltage, overcurrent, short circuit and over-temperature protection are carried out on an electrically connected lithium battery, and preferably, in the implementation, the terminal 130 is a fool-proof terminal, the lithium battery is conveniently assembled, and wrong connection of wires is effectively avoided.

The first protection assembly 200 includes a holding box 210, a communicating strip hole 220 opened on a side surface of the holding box 210, an expansion rod 230 having one end fixed on an inner wall of the holding box 210, a fin plate 240 disposed on the other end of the expansion rod 230, a first elastic member 250 wrapped on a side surface of the expansion rod 230, a nut tube 260 mounted on a side surface of the fin plate 240, and a first semicircular groove 270 opened at an opening of the holding box 210, and both ends of the first elastic member 250 are respectively fixed on side surfaces of the holding box 210 and the fin plate 240, the first elastic member 250 is a spring, an extended end of the fin plate 240 is fixed on an upper end of the expansion rod 230, four nut tubes 260 are fixed on an upper portion of the fin plate 240, the support plate 110 is clamped on the nut tubes 260 through the clamping holes 140, and the support plate 110 is located on an upper portion of the fin plate 240.

The second guard assembly 300 includes a cover plate 310 hinged to the opening of the container 210, a screw 320 penetrating through the cover plate 310, a second elastic member 330 wrapped on a side surface of the screw 320, a moving ring 340 disposed on an end portion of the second elastic member 330, and a second semicircular groove 350 disposed on a side surface of the cover plate 310, and another end portion of the second elastic member 330 is fixed on a side surface of the cover plate 310, the screw 320 is respectively screwed with the cover plate 310 and the nut tube 260, the cover plate 310 is mounted at the opening of the upper end of the container 210 via a hinge, the cover plate 310 can block the opening of the container 210 via the rotation of the hinge, the screw 320 is rotated, the screw 320 moves axially along a hole preset on the side surface of the cover plate 310, the screw 320 drives the moving ring 340 to press the support plate 110, and the screw 320 enters the nut tube 260 via the screw, therefore, the upper end of the support plate 110 is blocked by the moving ring 340 connected with the second elastic component 330, the second elastic component 330 is a spring, the length of the second semicircular groove 350 is greater than that of the first semicircular groove 270, and after the second semicircular groove 350 and the first semicircular groove 270 are combined, the lithium battery connection terminal wires can conveniently pass through.

The explosion-proof assembly 100, the first protection assembly 200 and the second protection assembly 300 are coated with antistatic agents, and the antistatic agents provide a static dissipation function and prevent static interference and dust adhesion; the outer wall of the containing box 210 is provided with a connecting plate 211, the side surface of the connecting plate 211 is provided with a butt joint hole 212, and the butt joint hole 212 is penetrated through by a bolt, so that the explosion-proof lithium battery protection plate can be conveniently and fixedly installed at a corresponding position by the bolt; a buffer cushion 241 is arranged between the fin plate 240 and the support plate 110, the buffer cushion 241 is an insulating heat-conducting silica gel sheet, the gap between the support plate 110 and the fin plate 240 is filled, heat emitted by the support plate 110 is guided to the fin plate 240, the heat dissipation effect of the control element device group 120 on the support plate 110 is further improved, and the buffer cushion 241 has elasticity and can further improve the buffer effect of the control element device group 120 on the support plate 110.

With reference to fig. 1 to fig. 3, the protection plate for an explosion-proof lithium battery according to this embodiment specifically protects the protection plate for an explosion-proof lithium battery as follows: the locking holes 140 on the side of the supporting plate 110 are locked on the nut tube 260 on the side of the fin plate 240, the external lithium battery connecting terminals are inserted into the terminals 130, the connecting wires of the external lithium battery connecting terminals are respectively placed into the first semicircular grooves 270, the cover plate 310 is turned over, and the second semicircular grooves 350 are guided to cover the positions right above the first semicircular grooves 270, the connecting wires of the lithium battery connecting terminals are reserved in the containing box 210 to facilitate the movement of the wires, the screw 320 is rotated to axially move on the side of the cover plate 310, the screw 320 is screwed into the nut tube 260 positioned right below, so that the supporting plate 110 is limited to axially move up and down along the directions of the screw 320 and the nut tube 260, the moving ring 340 is attached to the supporting plate 110, when the containing box 210 or the cover plate 310 is vibrated, the supporting plate 110 axially moves up and down along the directions of the screw 320 and the nut tube 260 along with the fin plate 240, and the first elastic members 250 and the second elastic members 330 on both sides buffer the vibration effectively, and the vibration of the supporting plate 110 and the protective members 120 and the terminals 130 on the side of the supporting plate 110 is buffered.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. An explosion-proof type lithium cell protection shield which characterized in that includes:

the explosion-proof assembly (100) comprises a support plate (110), a control element device group (120) arranged on the side surface of the support plate (110), a terminal (130) arranged on the side surface of the support plate (110) and a clamping hole (140) arranged on the side surface of the support plate (110);

the first protection assembly (200) comprises a containing box (210), a communicating strip hole (220) formed in the side face of the containing box (210), a telescopic rod (230) with one end fixed to the inner wall of the containing box (210), a fin plate (240) arranged at the other end of the telescopic rod (230), a first elastic component (250) wrapped on the side face of the telescopic rod (230), a nut tube (260) installed on the side face of the fin plate (240) and a first semicircular groove (270) formed in the opening of the containing box (210), and two ends of the first elastic component (250) are respectively fixed to the side faces of the containing box (210) and the fin plate (240);

second protection component (300), including articulating hold apron (310) of the uncovered department of box (210), run through screw rod (320), the parcel of apron (310) are in second elastic component (330), the setting on screw rod (320) side is in shift ring (340) on second elastic component (330) a tip and seting up second half slot (350) on apron (310) side, just the other end of second elastic component (330) is fixed on the side of apron (310), screw rod (320) respectively with apron (310) with nut pipe (260) spiro union.

2. The protection plate for an explosion-proof lithium battery as claimed in claim 1, wherein the explosion-proof assembly (100), the first protection assembly (200) and the second protection assembly (300) are coated with an antistatic agent.

3. The protection plate for the explosion-proof lithium battery as claimed in claim 1, wherein a connecting plate (211) is disposed on an outer wall of the containing box (210), and a butt-joint hole (212) is disposed on a side surface of the connecting plate (211).

4. The protection plate for the explosion-proof lithium battery as claimed in claim 1, wherein a dust screen frame (400) is installed on an inner wall of the communication bar hole (220).

5. The protection plate for explosion-proof lithium battery as claimed in claim 1, wherein the terminal (130) is a fool-proof terminal.

6. The lithium battery protection plate for preventing explosion as claimed in claim 1, wherein a buffer pad (241) is disposed between the fin plate (240) and the support plate (110).