CN215183335U

CN215183335U - Flame-retardant explosion-proof piezoresistor

Info

Publication number: CN215183335U
Application number: CN202121383751.8U
Authority: CN
Inventors: 付克丽
Original assignee: Jiangsu Guorui Testing Technology Co ltd
Current assignee: Jiangsu Guorui Testing Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-14
Anticipated expiration: 2031-06-22

Abstract

The utility model provides a fire-retardant explosion-proof piezo-resistor relates to the piezo-resistor field. The heat-absorbing shell comprises a shell, wherein a fireproof layer is arranged on the inner side of the shell, a piezoresistor is arranged on the inner side of the fireproof layer, and a heat-absorbing sheet is arranged on the upper surface of the piezoresistor. This fire-retardant explosion-proof piezo-resistor, through the heat sink, the cooperation of fin and louvre is used, can make piezo-resistor absorb by the heat sink at the heat that the during operation produced, later the heat that the heat sink absorbed is carried out the effluvium by the fin again, the heat that the fin effluvium is followed louvre discharge casing, thereby can reduce the piezo-resistor heat too high, through the flame retardant coating, a housing, a baffle, the lug, the cooperation of explosion-proof layer and spout is used, can make the casing, baffle and flame retardant coating keep apart it when inferior piezo-resistor is fired, the explosion-proof layer avoids piezo-resistor to damage other equipment because of the incomplete piece that the explosion splashes everywhere when piezo-resistor takes place to explode, thereby can reduce the loss.

Description

Flame-retardant explosion-proof piezoresistor

Technical Field

The utility model relates to a piezo-resistor technical field specifically is a fire-retardant explosion-proof piezo-resistor.

Background

The voltage dependent resistor is a resistor device with nonlinear volt-ampere characteristics, and is mainly used for voltage clamping when a circuit bears overvoltage, and absorbing redundant current to protect a sensitive device. The resistor material of the varistor is a semiconductor, so it is one of the semiconductor resistors. The zinc oxide piezoresistor used in large quantity is made up by using zinc as main body material and oxygen as hexavalent element. So from a materials perspective, a zinc oxide varistor is a "ii-vi oxide semiconductor". The varistor may be classified into a varistor for protection and a varistor for circuit function according to the purpose of use.

The conventional piezoresistor is easy to cause high-temperature combustion when a problem occurs in the operation, and explosion is easy to affect other equipment when the conventional piezoresistor does not work normally, so that great loss is caused, and therefore, a flame-retardant explosion-proof piezoresistor is needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a fire-retardant explosion-proof piezo-resistor has solved the problem mentioned in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a fire-retardant explosion-proof piezo-resistor, includes the casing, the flame retardant coating is installed to the inboard of casing, the inboard of flame retardant coating is provided with piezo-resistor, piezo-resistor's upper surface is provided with the heat absorption piece, the upper surface mounting of heat absorption piece has the fin, the outside of casing is provided with the explosion-proof layer, the upper surface of casing is provided with the louvre, the inboard of casing is provided with the spout, the inboard of spout is provided with the lug, the inboard of lug is provided with the baffle, the upper surface mounting of baffle has the fixed plate, the lower surface mounting of lug has the fixed column, the spring is installed to the inboard of fixed column, the fixed block is installed to the one end of spring, the lower surface of casing is provided with the through-hole, the lower surface of casing is provided with the cell body, the side of baffle is provided with puts the hole.

Preferably, the lower surface of the heat absorbing sheet is provided with a piezoresistor, and the upper surface of the heat absorbing sheet is provided with a fireproof layer.

Preferably, the number of the heat radiating fins is four, and the four heat radiating fins are uniformly arranged on the upper surface of the heat absorbing sheet.

Preferably, the number of the placing holes is two, and the two placing holes are uniformly arranged on the side surface of the baffle.

Preferably, the number of the heat dissipation holes is multiple, and the heat dissipation holes are uniformly formed in the upper surface of the shell.

Preferably, the outer side of the fireproof layer is provided with a through groove matched with the radiating fin, and the radiating fin penetrates through the through groove to reach the outer side of the fireproof layer.

(III) advantageous effects

The utility model provides a fire-retardant explosion-proof piezo-resistor. Has the following beneficial effects:

1. this fire-retardant explosion-proof piezo-resistor uses through the cooperation of heat absorbing fin, fin and louvre, can make the piezo-resistor absorb by the heat absorbing fin at the heat that the during operation produced, and the heat that later the heat absorbing fin absorbed is carried out the effluvium by the fin again, and the heat that the fin effluvium is followed the louvre and is discharged the casing to can reduce the piezo-resistor heat and too high.

2. This fire-retardant explosion-proof piezo-resistor, through the flame retardant coating, the cooperation of casing, baffle, lug, explosion-proof layer and spout is used, can be so that casing, baffle and flame retardant coating keep apart it when inferior piezo-resistor is on fire, and the explosion-proof layer avoids the piezo-resistor to damage other equipment because of the incomplete piece that the explosion splashes everywhere when the piezo-resistor explodes to can reduce the loss.

Drawings

FIG. 1 is a schematic view of the complete structure of the present invention;

FIG. 2 is a schematic sectional view of a first part of the present invention;

fig. 3 is a schematic sectional view of a second part of the present invention.

In the figure: the heat dissipation device comprises a shell 1, an explosion-proof layer 2, a fireproof layer 3, a piezoresistor 4, a heat absorption sheet 5, a heat dissipation sheet 6, heat dissipation holes 7, a baffle 8, a bump 9, a sliding groove 10, a fixing plate 11, fixing columns 12, springs 13, fixing blocks 14, through holes 15, groove bodies 16 and placing holes 17.

Detailed Description

The invention is explained in more detail below with reference to the figures and examples.

The embodiment of the utility model provides a fire-retardant explosion-proof piezoresistor, as shown in figures 1-3, including casing 1, the inboard of casing 1 installs flame retardant coating 3, the inboard of flame retardant coating 3 is provided with piezo-resistor 4, through setting up the cooperation of flame retardant coating 3 and piezo-resistor 4, can keep apart the outside when piezo-resistor 4 fires, the upper surface of piezo-resistor 4 is provided with heat absorbing sheet 5, the upper surface of heat absorbing sheet 5 is installed fin 6, through setting up the cooperation of heat absorbing sheet 5 and fin 6, can make heat absorbing sheet 5 absorb the heat that piezo-resistor 4 produced, the fin distributes the heat on heat absorbing sheet 5 afterwards, avoid the heat of sub-sensitive resistor 4 too high, the outside of casing 1 is provided with explosion-proof layer 2, through setting up explosion-proof layer 2, can make piezo-resistor 4 avoid splashing and damage other equipment when exploding, the upper surface of the shell 1 is provided with heat dissipation holes 7, heat dissipated by the heat dissipation fins 6 can be discharged out of the shell 1 by arranging the heat dissipation holes 7, the inner side of the shell 1 is provided with a sliding groove 10, the inner side of the sliding groove 10 is provided with a lug 9, the inner side of the lug 9 is provided with a baffle 8, the lug 9 on the side surface of the baffle 8 can be inserted into the sliding groove 10 to slide by arranging the sliding groove 10, the lug 9 on the side surface of the baffle 8 is provided with a fixed plate 11, the baffle 8 can be conveniently taken out of the inner side of the shell 1 by arranging the fixed plate 11, the lower surface of the lug 9 is provided with a fixed column 12, the inner side of the fixed column 12 is provided with a spring 13, one end of the spring 13 is provided with a fixed block 14, the lower surface of the shell 1 is provided with a through hole 15, the lower surface of the shell 1 is provided with a groove body 16, and by arranging the fixed column 12, the spring 13, the fixed block 14, the fixed block 15, the through hole 15 and the groove body 16 in cooperation, can make fixed block 14 and fixed column 12 pass through-hole 15 when baffle 8 moves spout 10 downside, then pull fixed block 14 under the elastic action of spring 13, later rotate fixed block 14 to fixed to it in the cell body 16, the side of baffle 8 is provided with puts the hole 17, through setting up and putting the hole 17, can prevent to extrude piezo-resistor 4.

Specifically, the lower surface of the heat absorbing sheet 5 is provided with the varistor 4, and the upper surface of the heat absorbing sheet 5 is provided with the fireproof layer 3, and through the cooperation of setting up the heat absorbing sheet 5 and the fireproof layer 3, can carry out heat absorption to the varistor 4 to prevent the varistor 4 from catching fire because of the high temperature.

Specifically, the number of the heat dissipation fins 6 is four, and the four heat dissipation fins 6 are uniformly arranged on the upper surface of the heat absorption plate 5, so that the heat of the heat absorption plate 5 can be dissipated by arranging the heat dissipation fins 6.

Specifically, the number of the placing holes 17 is two, the two placing holes 17 are uniformly arranged on the side face of the baffle plate 8, and the components of the piezoresistor 4 can be prevented from being extruded by the arrangement of the placing holes 17 and the cooperation of the baffle plate 8.

Specifically, the number of the heat dissipation holes 7 is plural, and the plural heat dissipation holes 7 are uniformly formed in the upper surface of the housing 1, and by providing the heat dissipation holes 7, the heat dissipated by the heat dissipation fins 6 can be discharged from the inside of the housing 1.

Specifically, logical groove with 6 looks adaptations of fin is seted up in the outside of flame retardant coating 3, and fin 6 passes logical groove to the outside of flame retardant coating 3, through the cooperation that sets up flame retardant coating 3 and fin 6 to avoid the too high fire of piezo-resistor 4 heat.

All the electric equipment in the scheme supplies power through the external power supply.

The working principle is as follows: during the use, place piezo-resistor 4 at flame retardant coating 3 inboard, then push into the innermost of spout 10 with baffle 8, later draw fixed block 14 under the elastic action of spring 13 and get rotatory to the cell body 16 in, thereby close casing 1, then absorb the heat on piezo-resistor 4 at piezo-resistor 4 heat-absorbing fin 5 when carrying out the work at piezo-resistor 4, later by the fin 6 of heat-absorbing fin 5 upper surface give off, flame retardant coating 3 in the piezo-resistor 4 outside carries out fire-retardant when piezo-resistor 4 catches fire, explosion-proof layer 2 in the casing 1 outside prevents that piezo-resistor 4 is ripples and other equipment in the explosion.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire-retardant explosion-proof piezo-resistor, includes casing (1), its characterized in that: the fireproof layer (3) is installed on the inner side of the shell (1), the piezoresistor (4) is arranged on the inner side of the fireproof layer (3), the heat absorbing sheet (5) is arranged on the upper surface of the piezoresistor (4), the heat radiating fin (6) is installed on the upper surface of the heat absorbing sheet (5), the anti-explosion layer (2) is arranged on the outer side of the shell (1), the heat radiating holes (7) are formed in the upper surface of the shell (1), the sliding groove (10) is formed in the inner side of the shell (1), the protruding block (9) is arranged on the inner side of the sliding groove (10), the baffle (8) is arranged on the inner side of the protruding block (9), the fixing plate (11) is installed on the upper surface of the baffle (8), the fixing column (12) is installed on the lower surface of the protruding block (9), the spring (13) is installed on the inner side of the fixing column (12), and the fixing block (14) is installed at one end of the spring (13), the lower surface of the shell (1) is provided with a through hole (15), the lower surface of the shell (1) is provided with a groove body (16), and the side surface of the baffle (8) is provided with a placing hole (17).

2. The flame-retardant explosion-proof piezoresistor according to claim 1, characterized in that: the lower surface of the heat absorbing sheet (5) is provided with a piezoresistor (4), and the upper surface of the heat absorbing sheet (5) is provided with a fireproof layer (3).

3. The flame-retardant explosion-proof piezoresistor according to claim 1, characterized in that: the number of the radiating fins (6) is four, and the four radiating fins (6) are uniformly arranged on the upper surface of the heat absorbing sheet (5).

4. The flame-retardant explosion-proof piezoresistor according to claim 1, characterized in that: the number of the placing holes (17) is two, and the two placing holes (17) are uniformly arranged on the side surface of the baffle (8).

5. The flame-retardant explosion-proof piezoresistor according to claim 1, characterized in that: the number of the heat dissipation holes (7) is multiple, and the heat dissipation holes (7) are uniformly formed in the upper surface of the shell (1).

6. The flame-retardant explosion-proof piezoresistor according to claim 1, characterized in that: the outside of flame retardant coating (3) is seted up with logical groove of fin (6) looks adaptation, fin (6) pass logical groove to the outside of flame retardant coating (3).