CN217848139U

CN217848139U - Battery package protective housing with fire prevention heat insulation function

Info

Publication number: CN217848139U
Application number: CN202221219832.9U
Authority: CN
Inventors: 杭志方; 金新华
Original assignee: Suzhou New Fang Wei Electronics Co ltd
Current assignee: Suzhou New Fang Wei Electronics Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-11-18
Anticipated expiration: 2032-05-20

Abstract

The utility model provides a battery package protecting crust with fire prevention heat insulation function, including the shell main part, the standing groove has been seted up at the top of shell main part, is equipped with the fire prevention subassembly on the inner wall of standing groove, and the top of shell main part is equipped with the isolation layer, and the surface of shell main part is equipped with the ceramic fibre layer. This is novel through being equipped with temperature-sensing ware and monitoring the temperature of battery package in to the housing main part, open the induction valve when the mars appears, gas in the gas storage box blows to dry powder box, blow into the dry powder and blow off from a powder pipe behind the ring pipe, realize putting out a fire the cooling, the heat that cooperation ceramic fibre layer and insulating layer will produce is kept apart, through being equipped with the isolation layer, when battery package takes place the thermal runaway, spun flue gas and electrolyte are blockked by the shell, prevent that the blowout thing from igniting or melt-through the shell through the flame retardant coating, the fine material layer of the fine material of cooperation keeps shell bulk strength, through setting up panel gold layer protecting sheathing main part, cause the influence to electric tool when avoiding battery package thermal runaway.

Description

Battery package protective housing with fire prevention heat insulation function

Technical Field

The utility model belongs to the technical field of the battery package, concretely relates to battery package protecting crust with fire prevention heat insulation function.

Background

Battery package extensively is used for various electric tool, common electric tool has the electric drill, electric grinder, electric spanner and electric screwdriver, electric hammer and electric impact drill, the concrete vibrator, electric planer etc, because electric tool can produce the heat at the during operation, in addition the factor of external fire source, influence is produced to inside battery package easily, in case the phenomenon that takes place battery burning explosion will lead to whole instrument damage of being equipped with the battery, can't work, and battery package among the current electric tool mostly does not possess the protective housing of fire prevention heat insulation function, and the battery itself can be because of overcharging, the thermal runaway phenomenon appears in the short circuit, lead to battery package itself to have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery package protecting crust with fire prevention heat insulation function aims at solving the battery package among the prior art among the current electric tool and does not possess the problem that the protecting crust of fire prevention heat insulation function leads to having the potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a battery package protecting crust with fire prevention heat insulation function, includes the shell main part, the standing groove has been seted up at the top of shell main part, be equipped with the fire prevention subassembly on the inner wall of standing groove, the top of shell main part is equipped with the isolation layer, the surface of shell main part is equipped with the ceramic fibre layer.

In order to make in time handle this condition when the flame appears, also prevent the situation that catches fire simultaneously, as the utility model relates to an it is preferred, the fire prevention subassembly includes the temperature-sensing ware, one side and the gas receiver fixed connection of temperature-sensing ware, one side of gas receiver is passed through the gas blow pipe and is alternated with the dry powder box and be connected, the surface of gas blow pipe is equipped with the induction valve, the both sides of dry powder box all alternate and are connected with the ring pipe, a side surface of ring pipe is equipped with a plurality of play powder pipe.

In order to make to keep apart battery package with the external world, as the utility model relates to a preferred, the isolation layer includes the metal plate gold layer, flame retardant coating and glass fibre material layer, the metal plate gold layer is installed outwardly, glass fibre material layer and metal plate gold layer parcel clamp are equipped with the flame retardant coating.

In order to make in time with inside gas outgoing when thermal runaway appears in the battery package, avoid appearing fried package phenomenon, as the utility model relates to an it is preferred, two ventholes, two have all been seted up to the both sides on shell main part and ceramic fibre layer all be equipped with the outlet duct on the inner wall of venthole.

In order to make it fixed with the installation of battery package body, as the utility model relates to a preferred, the inner wall bottom of standing groove is equipped with the installing frame, be equipped with the battery package body on the inner wall of installing frame.

In order to make the power transmission mouth with the battery package and the mouth that charges link to each other with electric tool through the wire, as the utility model relates to an it is preferable, one side of shell main part is equipped with the line concentration box, and extends to inside, the both sides of line concentration box all run through and are equipped with the line concentration hole.

In order to make the battery package not receive ambient temperature's influence while inside heat also not directly transmits for the exterior space, as the utility model relates to an it is preferred, the bottom of shell main part is equipped with insulating heat insulating board.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The temperature of the battery pack in the shell main body is detected through the arranged temperature sensor, when sparks occur, the induction valve is opened, gas in the gas storage box is blown to the dry powder box through the gas blowing pipe, dry powder in the box is blown into the annular pipe and finally blown out from the powder outlet pipes, then the battery pack is extinguished and cooled, the generated heat is isolated by matching with the ceramic fiber layer and the insulating layer, and finally the heat is discharged through the gas outlet pipe, so that the damage to the electric tool is reduced;

2) Through the isolation layer that is equipped with, when the battery package in the shell main part takes place the thermal runaway, spun flue gas and electrolyte all can be blockked by the shell main part, and through the heat-proof quality of flame retardant coating, can prevent that the jet from igniting or melting through the shell, the glass fiber material layer can remain the bulk strength of shell all the time, through setting up panel gold layer protecting sheathing main part, causes the influence to electric tool when avoiding the battery package thermal runaway.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic structural view of the main body of the housing of the present invention;

FIG. 3 is a schematic view of the fire protection assembly of the present invention;

fig. 4 is a schematic view of the isolation layer structure of the present invention.

In the figure: 1. a housing main body; 11. a placement groove; 12. an air outlet pipe; 13. installing a frame; 14. a wire collecting box; 15. a line concentration hole; 16. insulating and insulating plates; 2. a fire protection assembly; 21. a temperature sensor; 22. a gas storage box; 23. an air blowing pipe; 24. a dry powder box; 25. an induction valve; 26. an annular tube; 27. a powder outlet pipe; 3. an isolation layer; 31. a sheet metal layer; 32. a fire-resistant layer; 33. a glass fiber material layer; 4. a ceramic fiber layer; 5. the battery pack body.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a battery package protecting crust with fire prevention heat insulation function, includes housing body 1, and standing groove 11 has been seted up at housing body 1's top, is equipped with fire prevention subassembly 2 on standing groove 11's the inner wall, and housing body 1's top is equipped with isolation layer 3, and housing body 1's surface is equipped with ceramic fibre layer 4.

During the specific use, utilize fire prevention subassembly 2 to put out the flame that the battery package when thermal runaway produced, cooperation isolation layer 3 and ceramic fibre layer 4 are kept apart the heat that produces, reduce the influence to outside electric tool.

In this embodiment, fire prevention subassembly 2 includes temperature-sensing ware 21, one side and the gas storage box 22 fixed connection of temperature-sensing ware 21, and the gas blowing pipe 23 and the inserting connection of dry powder box 24 are passed through to one side of gas storage box 22, and the surface of gas blowing pipe 23 is equipped with induction valve 25, and the both sides of dry powder box 24 all insert and are connected with annular tube 26, and an lateral surface of annular tube 26 is equipped with a plurality of and goes out powder pipe 27.

When the dry powder extinguishing device is used specifically, the temperature sensor 21 is used for monitoring the internal temperature, when the battery pack generates a fire due to thermal runaway, the sensing valve 25 is opened, gas in the gas storage box 22 is blown to the dry powder box 24 from the gas blowing pipe 23, dry powder in the dry powder box 24 is blown out from the powder outlet pipes 27 after passing through the annular pipe 26, and the battery pack is extinguished.

In this embodiment, the isolation layer 3 includes a gold plating layer 31, a fire-proof layer 32 and a glass fiber material layer 33, the gold plating layer 31 is installed on the outermost layer, and the fire-proof layer 32 is sandwiched between the glass fiber material layer 33 and the gold plating layer 31.

During the specific use, utilize the fine material layer 33 of glass in the isolation layer 3 to keep holistic intensity, the electrolyte and the flue gas that produce when the cooperation flame retardant coating 32 will thermal runaway block, utilize metal plate gold layer 31 to protect housing main body 1, avoid thermal runaway's battery package to influence outside electric tool.

In this embodiment, two air outlets have been all seted up to the both sides of shell main part 1 and ceramic fiber layer 4, all are equipped with outlet duct 12 on the inner wall of two air outlets.

When the battery pack is used, gas generated after thermal runaway of an internal battery pack is discharged by the gas outlet pipe 12, and the phenomenon of pack explosion is prevented.

In this embodiment, the bottom of the inner wall of the placing groove 11 is provided with a mounting frame 13, and the inner wall of the mounting frame 13 is provided with the battery pack body 5.

In a specific use, the battery pack body 5 is mounted and fixed by the mounting frame 13.

In this embodiment, a line concentration box 14 is provided on one side of the housing main body 1 and extends to the inside, and line concentration holes 15 are provided through both sides of the line concentration box 14.

When the battery pack is used, the battery pack body 5 is electrically connected with an electric tool through a wire by utilizing the wire collecting hole 15 on the wire collecting box 14.

In the present embodiment, the bottom of the casing main body 1 is provided with an insulating board 16.

When the battery pack is used specifically, the insulating and heat-insulating plate 16 arranged at the bottom of the housing body 1 is utilized to isolate heat generated by high temperature from an external electric tool when thermal runaway occurs in the internal battery pack, so that the influence on the electric tool is prevented.

The working principle is as follows: firstly, the battery pack body 5 is placed inside the mounting frame 13 to be fixed, the battery pack body 5 is electrically connected with an external electric tool through a wire and then passes through a wire collecting hole 15 in a wire collecting box 14, then the battery pack body is sealed through a set isolation layer 3, when the internal battery pack body 5 is out of control due to heat, the internal temperature is monitored through a temperature sensor 21 to reach a threshold value, an induction valve 25 is opened, compressed gas in a gas storage box 22 is blown into a dry powder box 24 from a blowing pipe 23, dry powder in the box is blown into a ring pipe 26, finally the dry powder is blown to the battery pack body 5 through a plurality of powder outlet pipes 27, flames generated after the thermal runaway of the battery pack body 5 are extinguished, electrolyte and high-temperature flue gas generated after the thermal runaway are blocked through a fireproof layer 32 in the isolation layer 3, the overall strength is maintained by matching with the special performance of a material layer 33, the shell main body 1 is protected through a set metal plate 31, the influence on the external electric tool caused by the heat is avoided, two outlet pipes 12 on two sides of the shell main body 1 discharge pipes discharge the internal high-temperature gas, the internal high temperature insulation board is prevented from causing damage to the internal high temperature thermal insulation board, and the external electric tool, and the thermal runaway damage caused by the ceramic package is avoided, and the ceramic package, thereby, and the external electric tool, and the thermal insulation board is prevented from being damaged when the thermal runaway, and the thermal insulation board is set up thermal insulation layer 16.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a battery package protecting crust with fire prevention heat insulation function, includes shell main part (1), its characterized in that: the fireproof shell is characterized in that a placing groove (11) is formed in the top of the shell main body (1), a fireproof component (2) is arranged on the inner wall of the placing groove (11), an isolation layer (3) is arranged on the top of the shell main body (1), and a ceramic fiber layer (4) is arranged on the outer surface of the shell main body (1).

2. The battery pack protective shell with the functions of fire prevention and heat insulation according to claim 1, wherein: fire prevention subassembly (2) are including temperature-sensing ware (21), one side and gas receiver (22) fixed connection of temperature-sensing ware (21), one side of gas receiver (22) is passed through gas blow pipe (23) and is penetrated with dry powder box (24) and be connected, the surface of gas blow pipe (23) is equipped with induction valve (25), the both sides of dry powder box (24) are all penetrated and are connected with annular tube (26), a side surface of annular tube (26) is equipped with a plurality of and goes out powder pipe (27).

3. The battery pack protective shell with the functions of fire prevention and heat insulation according to claim 1, wherein: the isolating layer (3) comprises a sheet metal layer (31), a fireproof layer (32) and a glass fiber material layer (33), the sheet metal layer (31) is arranged on the outermost layer, and the fireproof layer (32) is arranged between the glass fiber material layer (33) and the sheet metal layer (31) in a wrapping mode.

4. The battery pack protective shell with the functions of fire prevention and heat insulation according to claim 1, wherein: two air outlet holes are formed in the two sides of the shell main body (1) and the ceramic fiber layer (4), and air outlet pipes (12) are arranged on the inner walls of the air outlet holes.

5. The battery pack protective shell with the functions of fire prevention and heat insulation according to claim 1, wherein: the battery pack is characterized in that a mounting frame (13) is arranged at the bottom of the inner wall of the placing groove (11), and a battery pack body (5) is arranged on the inner wall of the mounting frame (13).

6. The battery pack protective shell with the functions of fire prevention and heat insulation according to claim 1, wherein: one side of shell main part (1) is equipped with line concentration box (14), and extends to inside, the both sides of line concentration box (14) all run through and are equipped with line concentration hole (15).

7. The battery pack protective shell with the functions of fire prevention and heat insulation according to claim 1, wherein: and an insulating and heat insulating plate (16) is arranged at the bottom of the shell main body (1).