CN213694196U - Compact heater for explosion-proof cabinet - Google Patents

Abstract

The utility model discloses a compact heater for explosion-proof cabinet, including the heater body, the both sides of heater body are equipped with equidistance radiating fin, the inside of heater body is equipped with the inner chamber, the inside high performance heat conduction silica gel that is equipped with of inner chamber, the top of inner chamber is equipped with the screw thread, the heating rod inserts the inner chamber of body, the heating rod middle part is equipped with the screw thread, be connected with inner chamber threaded connection cooperation, the front end of heating rod middle part screw thread is equipped with the fuse, the front end of fuse is equipped with micro switch, the outside of micro switch and fuse is equipped with the protection casing, be equipped with embedment high temperature resistant silica gel in the protection casing, micro switch's front end is equipped with the power cord, the utility model: can automatic control heating, need not to dispose temperature sensor and temperature controller in addition again, thereby the effectual space of having saved can choose for use smaller size's explosion-proof cabinet, have the overheat protection function, the effectual potential safety hazard that has reduced, the heat waste is low, the heat dissipation is fast, corrosion-resistant etc. all is favorable to the use of reality.

Description

Compact heater for explosion-proof cabinet

Technical Field

The utility model relates to a heater for explosion-proof cabinet, in particular to compact heater that small-size explosion-proof cabinet was used belongs to heater technical field.

Background

As the explosion-proof cabinets are applied to places such as chemical plants, natural gas transportation oil tankers, oil drilling platforms and the like and are all in outdoor environments, the outdoor temperature in low-temperature areas is usually minus dozens of degrees, and some electronic components are even about minus 40 ℃, and the electronic components arranged inside the explosion-proof cabinets cannot normally work in the low-temperature environments. The existing method is that a heating cable or a conventional heater is arranged in an explosion-proof cabinet, when an explosion-proof cabinet control system needs to start working, the heating cable or the heater firstly heats the temperature in the explosion-proof cabinet to about 15 ℃, and then all electronic components of the control system start working.

Because all are general heating cable, heater, consequently the overall dimension is all very big, all need install temperature sensor, temperature controller in explosion-proof cabinet inside when using and control the temperature. The space inside the explosion-proof cabinet is smaller in the conventional situation, and especially, no space is arranged inside the small-size explosion-proof cabinet for installing a temperature sensor and a temperature controller. If the temperature sensor and the temperature controller are not installed to control the temperature, the normal work of the internally installed electronic components can be influenced, and meanwhile, the explosion-proof performance can be influenced if the temperature is too high. In addition, because the heating cable or the heater has no overheat protection function, when the power switch fails, the heating temperature may exceed an allowable value, so that the requirement of the explosion-proof cabinet on the temperature cannot be met, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a compact heater for explosion-proof cabinet has solved current technical defect: the installation of the temperature sensor and the temperature controller has larger overall dimension, needs a lot of space, has no overheat protection function, has potential safety hazard, and has slow heating temperature rise.

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

the utility model provides a pair of compact heater for explosion-proof cabinet, including heater body and heating rod, the both sides of heater body are equipped with the radiating fin of equidistance, the inside of heater body is equipped with the inner chamber, the inner chamber top is equipped with the screw thread, the heating rod inserts the inner chamber of heater body, the heating rod middle part is equipped with the screw thread and fixed with the threaded connection of heater inner chamber, the front end of heating rod screw thread is equipped with the fuse, the front end of fuse is equipped with micro switch, the outside of micro switch and fuse is equipped with the protection casing, and to the inside embedment high temperature resistant silica gel of protection casing seals, micro switch's front end is equipped with the power cord.

As an optimized proposal of the utility model, the front end of the heating rod thread is provided with a fuse.

As an optimized proposal of the utility model, the front end of the fuse is provided with a micro switch.

As an optimized proposal of the utility model, the top of the inner cavity is provided with an explosion-proof thread which is connected and fixed with the heating rod.

As an optimized proposal of the utility model, high-performance heat-conducting silica gel is arranged between the inner wall of the inner cavity and the outer surface of the heating rod.

As an optimized proposal of the utility model, the outer sides of the micro switch and the fuse are provided with the protective covers and are filled and sealed with high temperature resistant silica gel.

As an optimized proposal of the utility model, the front end of the micro switch is provided with a power line.

As an optimized proposal of the utility model, the heater body and the radiating fins are made of aluminum alloy material.

As an optimized proposal of the utility model, the surfaces of the heater body and the radiating fins are both treated by anodic oxidation.

The utility model discloses the beneficial effect who reaches is:

1. the microswitch is arranged to have the function of automatically controlling heating, and a temperature sensor and a temperature controller are not needed, so that the space inside the explosion-proof cabinet is not additionally occupied, the explosion-proof cabinet with smaller size can be selected, and the cost of the explosion-proof cabinet is effectively reduced.

2. The fuse has an overheat protection function, can be automatically fused when the temperature is too high, cut off a power supply and stop heating, and effectively reduces potential safety hazards.

3. The heat loss is low, and 98% of heat generated by the heating rod can be conducted to the heater body and the radiating fins through the high-performance heat-conducting silica gel.

4. The heat dissipation is fast, forms the heat convection through the equidistance radiating fin who sets up, can give off the heat fast.

5. Good corrosion resistance, and the surface adopts anodic oxidation treatment.

6. The heating power can be flexibly changed, and the heating rod with corresponding power can be replaced.

7. The heating plate has low use cost and simple maintenance, and only needs to be replaced when the heating plate is damaged and cannot be heated.

8. The applicability is strong, can cut the radiating fin according to the appropriate amount of installation space size

9. The self-carrying power cord is more convenient to use.

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 view of the heater body and the heat dissipating fins of the present invention.

In the figure: 1. a heater body; 2. an inner cavity; 3. a heating rod; 4. heat conducting silica gel; 5. a heat dissipating fin; 6. explosion-proof screw threads; 7. a fuse; 8. a micro switch; 9. a power line; 10. high temperature resistant silica gel; 11. a shield.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-2, the utility model provides a compact heater for explosion-proof cabinet, which comprises a heater body 1, wherein the two sides of the heater body 1 are provided with radiating fins 5 with equal distance, and the heat generated by the heater body 1 can be better dissipated through the radiating fins 5; an inner cavity 2 is formed in the heater body 1, an anti-explosion thread 6 is arranged at the top of the inner cavity 2, an anti-explosion thread 6 is arranged in the middle of the heating rod 3, the heating rod 3 is inserted into the inner cavity 2, and the anti-explosion thread 6 of the inner cavity 2 is fixedly connected with the anti-explosion thread 6 of the heating rod 3; high-performance heat-conducting silica gel 4 is arranged between the inner wall of the inner cavity 2 and the outer surface of the heating rod 3, so that the heat conductivity can be effectively improved; the front end of the explosion-proof thread 6 of the heating rod 3 is provided with a fuse 7; the front end of the fuse 7 is provided with a micro switch 8; a protective cover 11 is arranged on the outer side of the fuse 7 and the micro switch 8, and then high-temperature-resistant silica gel 10 is filled and sealed in the protective cover 11, so that the protective cover has a protective effect; the front end of the micro switch 8 is provided with a power line 9, so that the micro switch is more convenient to connect with a power supply when in use. When the heating rod 3 is continuously heated to a certain temperature, the micro switch 8 can automatically cut off the power supply to stop heating, and when the temperature is reduced to a certain degree, the micro switch 8 can automatically cut on the power supply to start heating again, so that the function of automatically controlling heating is realized, and a temperature sensor and a temperature controller are not required to be additionally arranged to control the heating temperature; when the heating temperature of the heating rod 3 is too high, but the micro switch 8 does not automatically cut off the power supply to stop heating, the heating rod 3 is still continuously heated at the moment, and when the temperature is high to a certain degree, the fuse 7 can be automatically fused to cut off the power supply to stop heating, so that the potential safety hazard is effectively reduced.

Further, 2 tops of inner chamber are equipped with and are connected fixed explosion-proof screw thread 6 with heating rod 3 mutually supporting, and it is more convenient, simple to install and dismantle heating rod 3 through explosion-proof screw thread 6.

Further, it has high performance heat conduction silica gel 4 to fill between the inner wall of inner chamber 2 and the surface of heating rod 3, guarantees that the heat that heating rod 3 sent can be abundant conduct for heater body 1, effectual reduction calorific loss.

Furthermore, the micro switch 8 can automatically turn off the power supply to stop heating and turn on the power supply to start heating, and has a function of automatically controlling heating.

Furthermore, the fuse 7 can be automatically fused when the temperature is high to a certain degree, so that the power supply is disconnected to stop heating, and the potential safety hazard is effectively reduced.

Furthermore, the protective cover 11 is arranged on the outer sides of the fuse 7 and the micro switch 8, and then the high-temperature-resistant silica gel 10 is filled and sealed in the protective cover 11, so that the micro switch 8 and the fuse 7 are effectively isolated from the surrounding environment, the explosion-proof performance is more reliable, the protective function is achieved, and the damage caused by the impact of other objects can be effectively prevented.

Further, heater body 1 and radiating fin 5 are formed by the aluminium alloy material preparation, form the heat convection through setting up equidistance radiating fin 5, are convenient for further increase radiating effect.

Further, the heater body 1 and the radiating fins 5 are made of aluminum alloy materials, the surfaces of the heater body and the radiating fins are subjected to anodic oxidation treatment, and the corrosion resistance is better.

Further, the power cord 9 is more convenient to connect with a power supply when in use.

Specifically, when the heat dissipation device is used, firstly, the heater body 1 and the heat dissipation fins 5 shown in fig. 2 are formed by a die and are manufactured at the same time, the inner cavity 2 is machined in the heater body 1, then a proper amount of high-performance heat conduction silica gel 4 is poured into the inner cavity 2, then the heating rod 3 is inserted into the inner cavity 2, at the moment, the gap between the heating rod 3 and the inner cavity 2 is completely filled by the high-performance heat conduction silica gel 4, the heating rod 3 is connected with the explosion-proof thread 6 at the top end of the inner cavity 2 in a matched manner, then the explosion-proof thread 6 is screwed, the fuse 7 and the micro switch 8 are provided with the protective cover 11 on the outer side, then the high-temperature-resistant silica gel 10 is filled into the protective cover 11 for sealing, the heat dissipation device can be completely cured after being placed at room temperature for 8 hours, and at.

Therefore, the compact heater for the explosion-proof cabinet provided by the utility model has the function of automatically controlling heating, and does not need to additionally install a temperature sensor and a temperature controller, so that the space is saved, the explosion-proof cabinet with smaller size can be selected, and the cost of the explosion-proof cabinet is effectively reduced; the safety protection device has an overheat protection function, can be automatically fused when the temperature is too high, so that a power supply is cut off to stop heating, and potential safety hazards are effectively reduced; the heat loss is low, and 98% of heat generated by the heating rod can be conducted to the heater body and the radiating fins; the heat dissipation is fast, and heat convection is formed by the equidistant heat dissipation fins, so that heat can be dissipated fast; the surfaces of the heater body and the radiating fins are subjected to anodic oxidation treatment, so that the corrosion resistance is good; flexible and convenient use and simple maintenance.

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 in the foregoing embodiments, 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 (5)

1. The utility model provides a compact heater for explosion-proof cabinet, includes heater body (1), its characterized in that, the both sides of heater body (1) are equipped with equidistant radiating fin (5) and both are a whole, the inside of heater body (1) is equipped with inner chamber (2), the top of inner chamber (2) is equipped with explosion-proof screw thread (6) and connects fixed heating rod (3), heating rod (3) are equipped with fuse (7), fuse (7) front end is equipped with micro switch (8), fuse (7), micro switch (8) outside are equipped with safety cover (11), micro switch (8) front end is equipped with power cord (9).

2. A compact heater for explosion-proof cabinets according to claim 1, characterized in that the top of the inner chamber (2) is provided with explosion-proof threads (6) which are mutually connected and matched with the heating rod (3).

3. A compact heater for explosion-proof cabinets according to claim 1, characterized in that the gap between the inner wall of the inner chamber (2) and the outer surface of the heating rod (3) is provided with high performance heat-conducting silica gel (4).

4. The compact heater for explosion-proof cabinets according to claim 1, characterized in that the fuse (7) and the micro switch (8) are provided with a protective cover (11) on the outside, and a high temperature resistant silica gel (10) is filled and sealed into the protective cover (11).

5. A compact heater for explosion-proof cabinets according to claim 1, wherein the heater body (1) and the radiating fins (5) are cast in one piece from an aluminium alloy material.

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