CN211461852U

CN211461852U - Motor junction box structure with built-in automatic fire extinguisher

Info

Publication number: CN211461852U
Application number: CN201921995203.3U
Authority: CN
Inventors: 窦涛; 周红
Original assignee: Sinoma Chengdu Energy Technology Co ltd
Current assignee: Sinoma Science & Technology Chengdu Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-09-11
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to the technical field of motors, and discloses a motor junction box structure with an automatic fire extinguisher inside, which comprises a junction box, a fire extinguisher arranged in the junction box, a heat-sensitive wire and a power wire; the fire extinguisher is connected with one end of the thermosensitive wire; the other end of the thermosensitive wire is contacted with the power lead; when the temperature of the heat-sensitive wire is higher than 85 degrees, the heat-sensitive wire detonates the fire extinguisher. The utility model discloses reach the mesh that can automatic fire extinguishing.

Description

Motor junction box structure with built-in automatic fire extinguisher

Technical Field

The utility model relates to the technical field of motors, concretely relates to built-in automatic fire extinguisher's motor terminal box structure.

Background

Ordinary non-explosion-proof motor is as the most commonly used electric drive equipment of industrial field, because terminal box terminal has often become flexible phenomenon for a long time in the use, when voltage is higher, or when the motor starts electric current great in the twinkling of an eye, not hard up terminal department just can locally produce the spark and overheat, can arouse the insulating layer to catch fire when serious, causes incident such as conflagration, does not have better precaution at present yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor terminal box structure of built-in automatic fire extinguisher to reach automatic fire extinguishing's purpose.

The utility model provides a basic scheme is: the motor junction box structure internally provided with the automatic fire extinguisher comprises a junction box, the fire extinguisher, a heat-sensitive wire and a power wire, wherein the fire extinguisher, the heat-sensitive wire and the power wire are arranged in the junction box; the fire extinguisher is connected with one end of the thermosensitive wire; the other end of the thermosensitive wire is contacted with the power lead; when the temperature of the heat-sensitive wire is higher than 85 degrees, the heat-sensitive wire detonates the fire extinguisher.

The utility model has the advantages that:

the utility model provides a new protective measure of the terminal post in the motor junction box with lower cost through the arrangement of the heat-sensitive wire and the fire extinguisher; the utility model has simple and reliable structure, and can effectively prevent fire burning; the safety accidents of the motor can be effectively reduced. When the power wire is in an abnormal working state, overheating can cause the power wire to be burnt out, and even cause fire. Therefore, the thermosensitive wire is directly contacted with the power conducting wire, whether the risk of fire disaster exists can be judged in time, and then the fire extinguisher which is detonated by the thermosensitive wire automatically extinguishes the fire.

Further, the fire extinguisher is a dry powder fire extinguisher.

The dry powder fire extinguisher is a common fire extinguisher in the market, and is high in quality and low in price.

Further, the dry powder capacity in the dry powder fire extinguisher is 0-0.2 kg.

The miniature dry powder fire extinguishers have a limited capacity to hold dry powder.

Further, the dry powder capacity of the dry powder fire extinguisher is 0.1 kg.

This volume of dry powder extinguishing agent is neither too heavy, but is also sufficient to extinguish a fire.

Furthermore, a locking nut used for pressing the thermosensitive wire on the power wire is arranged in the junction box.

Through the locking nut, the thermosensitive wire can be in contact with the power lead, the temperature change of the power lead is monitored in real time, and a fire disaster is avoided.

Furthermore, a wiring terminal is arranged in the wiring box, and the locking nut is in threaded connection with the wiring terminal.

The locking nut and the binding post are used together to press the thermosensitive wire on the power wire.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a motor junction box structure of the built-in automatic fire extinguisher.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the fire extinguisher fixing device comprises a fixing bolt 1, a junction box 2, a fire extinguisher fixing bolt 3, a fire extinguisher 4, a locking nut 5, a junction box cover plate 6, a heat-sensitive wire 7 and a power lead 8.

Example one

An embodiment substantially as shown in figure 1: the embodiment provides a motor junction box of a built-in automatic fire extinguisher, which comprises a junction box 2 and a fire extinguisher 4 arranged in the junction box 2, wherein the top of the junction box 2 is a junction box cover plate with a middle bulge and four concave sides. The longitudinal section of the whole junction box 2 is in a convex structure. The junction box top cover is connected with the side wall of the junction box below the junction box top cover through the fixing bolt 1. On the bottom surface of the junction box cover plate, a fire extinguisher 4 is mounted on the junction box cover plate through a fire extinguisher fixing screw 4.

The automatic fire extinguisher is connected with a thermosensitive wire, and the other end of the thermosensitive wire is wound on a binding post positioned below the automatic fire extinguisher. The automatic fire extinguisher and the heat-sensitive wire are all arranged in the motor junction box.

The fire extinguisher is an automatic fire extinguisher without external force. The fire extinguisher is a miniature dry powder fire extinguisher. The volume of the dry powder fire extinguisher is 0.1 Kg.

The heat-sensitive wire is led out from the fire extinguisher. The automatic fire extinguisher can be conveniently and quickly opened after ignition.

The heat-sensitive wire ignition point is 85 ℃. The thermosensitive wire, the power line and the binding post are bound together by a binding tape.

When the terminal is locally overheated, an automatic fire extinguisher can be triggered to extinguish possible open fire, thereby avoiding causing greater loss. The fire extinguisher fixing device comprises a junction box cover plate fixing bolt 1, a junction box 2, a fire extinguisher fixing bolt 3, a fire extinguisher 4, a locking nut 5, a junction box cover plate 6, a heat-sensitive wire 7 and a power wire 8. The junction box cover plate 6 is fixed on the junction box 2 through the junction box cover plate fixing bolt 1, the power lead is fixed on the junction box through the locking nut 5, the fire extinguisher 4 is fixed on the junction box cover plate 6 through the fire extinguisher fixing bolt 3, and the heat-sensitive wire 7 is bound on the power lead 8.

The utility model has the advantages that: provides a new protection measure for the terminal post in the motor junction box with lower cost; the structure is simple and reliable; the fire burning around the binding post can be effectively prevented; the safety accidents of the motor can be effectively reduced.

Example two

The difference from the first embodiment is that the fire extinguisher 4 is a fire extinguishing ball filled with dry powder, and the heat-sensitive wire is a cotton rope with good combustion effect. One end of the heat-sensitive wire is directly pressed on the power wire through the locking nut, and when the power wire is overheated, the heat-sensitive wire 7 detonates. Extinguisher 4 is a commercially available spherical dry powder extinguisher. The ribbon that ligature temperature sensing line, power cord and terminal together is the plastic material, avoids causing the heat to gather for ligature itself, outwards stretches out outside bellied bellying on the ribbon, like this in the ligature, can provide radiating space for the line of being tied up.

The fire extinguisher 4 is arranged on the cover plate 6, the weight of the fire extinguisher 4 is 0.5-2kg, and the installation position of the fire extinguisher 4 is the middle position of the junction box cover plate. In this example, the weight of the dry powder in the fire extinguisher 4 is 0.1 kg.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a built-in automatic fire extinguisher's motor terminal box structure which characterized in that: comprises a junction box, a fire extinguisher arranged in the junction box, a heat-sensitive wire and a power wire; the fire extinguisher is connected with one end of the thermosensitive wire; the other end of the thermosensitive wire is contacted with the power lead; when the temperature of the heat-sensitive wire is higher than 85 degrees, the heat-sensitive wire detonates the fire extinguisher.

2. The motor junction box structure of an internal automatic fire extinguisher according to claim 1, wherein: the fire extinguisher is a dry powder fire extinguisher.

3. The motor junction box structure of an internal automatic fire extinguisher according to claim 2, wherein: the dry powder capacity in the dry powder fire extinguisher is 0-0.2 kg.

4. The motor junction box structure of an internal automatic fire extinguisher according to claim 3, wherein: the dry powder capacity of the dry powder fire extinguisher is 0.1 kg.

5. The motor junction box structure of an internal automatic fire extinguisher according to claim 1, wherein: and a locking nut used for pressing the thermosensitive wire on the power wire is arranged in the junction box.

6. The motor junction box structure of an internal automatic fire extinguisher according to claim 5, wherein: and a binding post is arranged in the junction box, and the locking nut is in threaded connection with the binding post.