CN213483858U

CN213483858U - Shockproof lithium battery protection plate for electric tool

Info

Publication number: CN213483858U
Application number: CN202023000481.6U
Authority: CN
Inventors: 伍凤华
Original assignee: Shenzhen Huadayuan Technology Co ltd
Current assignee: Shenzhen Huadayuan Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-06-18
Anticipated expiration: 2030-12-14

Abstract

The utility model belongs to the technical field of lithium battery protection board, a shockproof lithium battery protection board for electric tool is provided, including shell, a plurality of lithium cells and protection shield, fixed mounting has a backup pad on the shell, and fixed mounting has a shock pad in the backup pad, and on a shock pad was all arranged in to a plurality of lithium cells, the top that just is located the lithium cell was connected with the lithium cell electricity to the protection shield, protection shield and shell joint, be equipped with a plurality of damper units between protection shield and the lithium cell, a plurality of damper units and a plurality of lithium cell one-to-one, damper unit's one end and lithium cell fixed connection, damper unit's the other end can be dismantled with the protection shield. The utility model discloses an electric tool is with lithium cell protection shield that takes precautions against earthquakes reduces the vibrations effect that the protection shield received to have the characteristics of being convenient for install and dismantle.

Description

Shockproof lithium battery protection plate for electric tool

Technical Field

The utility model relates to a lithium battery protection shield technical field, concretely relates to electric tool is with lithium battery protection shield that takes precautions against earthquakes.

Background

The battery protection board is an integrated circuit board which mainly plays a protection role for rechargeable (generally referred to as lithium batteries) and plays roles of overcharge, overdischarge, overcurrent, short circuit and ultrahigh-temperature charge and discharge. In order to meet the requirements of use, batteries are usually provided in the form of a battery pack, which is formed by connecting individual battery cells in series or in parallel, and is used together with a battery protection board.

Since the electric tool generates a strong vibration effect during use, a vibration-proof structure needs to be added to the battery protection plate.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a pair of shockproof lithium battery protection shield for electric tool reduces the vibrations effect that the protection shield received to have the characteristics of being convenient for install and dismantle.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides an electric tool is with lithium cell protection shield that takes precautions against earthquakes, includes shell, a plurality of lithium cells and protection shield, fixed mounting has the backup pad on the shell, and fixed mounting has first shock pad in the backup pad, and a plurality of lithium cells are all arranged in on the first shock pad, and the protection shield is connected and is located the top of lithium cell with lithium cell electricity, protection shield and shell joint, be equipped with a plurality of damper units between protection shield and the lithium cell, a plurality of damper units and a plurality of lithium cell one-to-one, damper units's one end and lithium cell fixed connection, damper units's the other end can be dismantled.

Furthermore, the clamping grooves are symmetrically formed in two sides of the shell, the U-shaped shock absorption pads are fixedly mounted in the clamping grooves, and the edges of the protection plates are arranged in the containing spaces of the U-shaped shock absorption pads.

Furthermore, set up a plurality of first recesses of lithium cell looks adaptation on the first shock pad, a plurality of lithium cells and a plurality of first recess one-to-one, the lithium cell is arranged in first recess.

Further, fixed mounting has a plurality of fin and a plurality of second shock pad on the side that lithium cell and shell are relative, and a plurality of fin and a plurality of second shock pad interval set up, a plurality of second recesses have been seted up on the shell, and in the second recess was arranged in to the fin, the upper and lower surface of fin contacted with the last lateral wall and the lower lateral wall of second recess respectively.

Further, damper includes support column and slip cap, support column and lithium cell fixed connection, and the cover is equipped with compression spring on the support column, set up on the protection shield with the through-hole of slip cap looks adaptation, slip cap passes through-hole and support column sliding connection, the bottom of slip cap and compression spring's top butt.

According to the above technical scheme, the beneficial effects of the utility model are that: the lithium batteries are arranged on the first shock absorption pad, so that the vibration force borne by the lithium batteries is weakened, the shock absorption assemblies are arranged between the protection board and the lithium batteries, when the protection board or the lithium batteries are subjected to larger vibration force, the shock absorption effect of the shock absorption assemblies can weaken the mutual influence between the protection board and the lithium batteries, and the shock absorption effect borne by the protection board is reduced; simultaneously, protection shield and shell joint, damper's one end and lithium cell fixed connection, damper's the other end can be dismantled with the protection shield and be connected, the installation and the dismantlement of the protection shield of being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a sectional view of the present invention.

Reference numerals:

1-a housing; 2-a lithium battery; 3-protecting the board; 4-a support plate;

11-a card slot; 12-a second groove; 21-a support column; 22-a heat sink; 23-a second cushion; 31-a sliding cap; 41-a first shock pad;

a 111-U shaped shock pad; 211-a compression spring; 411-first groove.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1, the embodiment provides a shockproof lithium battery protection board for electric tool, which comprises a housing 1, a plurality of lithium batteries 2 and protection board 3, fixed mounting has backup pad 4 on the shell 1, fixed mounting has first shock pad 41 on the backup pad 4, a plurality of lithium batteries 2 are all arranged in on first shock pad 41, protection board 3 is connected and is located the top of lithium batteries 2 with lithium batteries 2 electricity, protection board 3 and shell 1 joint, be equipped with a plurality of damper assemblies between protection board 3 and the lithium batteries 2, a plurality of damper assemblies and a plurality of lithium batteries 2 one-to-one, damper assemblies's one end and lithium batteries 2 fixed connection, damper assemblies's the other end can be dismantled with protection board 3 and be connected.

In practical use, the plurality of lithium batteries 2 are placed on the first shock absorption pad 41, so that the vibration force applied to the plurality of lithium batteries 2 is weakened, the plurality of shock absorption assemblies are arranged between the protection plate 3 and the lithium batteries 2, when the protection plate 3 or the lithium batteries 2 are subjected to larger vibration force, the shock absorption effect of the shock absorption assemblies can weaken the mutual influence between the protection plate 3 and the lithium batteries 2, and the shock absorption effect applied to the protection plate 3 is reduced; simultaneously,

protection shield

3 and 1 joint of shell, damper's one end and lithium cell 2 fixed connection, damper's the other end can be dismantled with protection shield 3 and be connected, the installation and the dismantlement of protection shield 3 of being convenient for.

In this embodiment, the clamping grooves 11 are symmetrically formed in two sides of the housing 1, the U-shaped shock absorbing pad 111 is fixedly mounted in the clamping grooves 11, and the edge of the protection plate 3 is placed in the accommodating space of the U-shaped shock absorbing pad 111, so that the protection plate 3 can be conveniently mounted and dismounted, and the vibration force of the housing 1 brought to the protection plate 3 during vibration can be effectively weakened.

In this embodiment, set up a plurality of first recesses 411 of lithium cell 2 looks adaptation on the first shock pad 41, a plurality of lithium cells 2 and a plurality of first recess 411 one-to-one, lithium cell 2 arranges first recess 411 in, is convenient for fix lithium cell 2's position, and makes to have the space between a plurality of lithium cells 2, strengthens the radiating effect between a plurality of lithium cells 2.

In this embodiment, a plurality of heat sinks 22 and a plurality of second shock pads 23 are fixedly mounted on the side surface of the lithium battery 2 opposite to the housing 1, the plurality of heat sinks 22 and the plurality of second shock pads 23 are arranged at intervals, the housing 1 is provided with a plurality of second grooves 12, the heat sinks 22 are arranged in the second grooves 12, and the upper surface and the lower surface of the heat sinks 22 are respectively in contact with the upper side wall and the lower side wall of the second grooves 12.

In practical use, the upper and lower surfaces of the heat sink 22 are respectively in contact with the upper and lower sidewalls of the second groove 12, so as to enhance the heat dissipation effect of the lithium battery 2; when the lithium battery 2 is vibrated and shaken in the left-right direction, the outer side surface of the second shock pad 23 is firstly contacted with the inner surface of the shell 1, so that the end part of the radiating fin 22 is prevented from colliding with the side wall of the second groove 12, and the vibration force of the lithium battery 2 is weakened.

In this embodiment, damper includes support column 21 and slip cap 31, support column 21 and lithium cell 2 fixed connection, and the cover is equipped with compression spring 211 on the support column 21, offers the through-hole with slip cap 31 looks adaptation on the protection shield 3, and slip cap 31 passes through-hole and support column 21 sliding connection, and the bottom of slip cap 31 and compression spring 211's top butt, and slip cap 31 adopts elastic rubber material.

In the in-service use, at first, place lithium cell 2 in first recess 411, then, place the space of placing of U type shock pad 111 in the edge of protection shield 3, finally, place slip cap 31 in the through-hole, and adjust the position of slip cap 31, make slip post and support column 21 sliding connection and the bottom of slip cap 31 and the top butt of compression spring 211, when protection shield 3 or lithium cell 2 receive great vibrations, the sliding action of slip cap 31 and support column 21, the elastic force effect of compression spring 211, effectively weaken the interact between protection shield 3 and the lithium cell 2, reduce the vibrations effect that protection shield 3 received.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an electric tool is with lithium cell protection shield that takes precautions against earthquakes, includes shell (1), a plurality of lithium cell (2) and protection shield (3), its characterized in that: fixed mounting has backup pad (4) on shell (1), and fixed mounting has first shock pad (41) on backup pad (4), and on first shock pad (41) was all arranged in a plurality of lithium cell (2), protection shield (3) were connected and were located the top of lithium cell (2) with lithium cell (2) electricity, protection shield (3) and shell (1) joint, be equipped with a plurality of damper between protection shield (3) and lithium cell (2), a plurality of damper and a plurality of lithium cell (2) one-to-one, damper's one end and lithium cell (2) fixed connection, damper's the other end can be dismantled with protection shield (3) and be connected.

2. The vibration-proof lithium battery protection plate for a power tool as claimed in claim 1, wherein: the clamping grooves (11) are symmetrically formed in two sides of the shell (1), the U-shaped shock absorption pad (111) is fixedly mounted in the clamping grooves (11), and the edge of the protection plate (3) is arranged in the containing space of the U-shaped shock absorption pad (111).

3. The vibration-proof lithium battery protection plate for a power tool as claimed in claim 1, wherein: a plurality of first recesses (411) of lithium cell (2) looks adaptation are seted up on first shock pad (41), a plurality of lithium cells (2) and a plurality of first recess (411) one-to-one, and lithium cell (2) are arranged in first recess (411).

4. The vibration-proof lithium battery protection plate for a power tool as claimed in claim 3, wherein: fixed mounting has a plurality of fin (22) and a plurality of second shock pad (23) on lithium cell (2) and the relative side of shell (1), and a plurality of fin (22) and a plurality of second shock pad (23) interval set up, a plurality of second recess (12) have been seted up on shell (1), and in second recess (12) were arranged in fin (22), the upper and lower surface of fin (22) contacted with last lateral wall and the lower lateral wall of second recess (12) respectively.

5. The vibration-proof lithium battery protection plate for a power tool as claimed in claim 1, wherein: damping component includes support column (21) and slip cap (31), support column (21) and lithium cell (2) fixed connection, and the cover is equipped with compression spring (211) on support column (21), offer on protection shield (3) with the through-hole of slip cap (31) looks adaptation, slip cap (31) pass through-hole and support column (21) sliding connection, the bottom of slip cap (31) and the top butt of compression spring (211).