CN111326315A - Transformer electric appliance cabinet - Google Patents

Abstract

The invention discloses a transformer electrical cabinet, comprising a cabinet body, heat absorbing plates are fixedly installed on both sides of the inside of the cabinet body, a plurality of heat dissipation slots are provided on both outer surfaces of the cabinet body, and the inside of the cabinet body A support plate is fixedly installed at the upper end, a dust box is fixedly installed on the upper surface of the cabinet at a position of a chamber, a fan is fixedly installed in the dust box, another chamber at the upper end of the cabinet is filled with dry powder, and a pull rod is installed. A crushing mechanism for crushing the glass cover plate is installed on the upper surface at the position of the installation port. In the present invention, heat absorption plates are arranged on both sides of the inside of the cabinet, so that the heat inside the cabinet can be absorbed, so as to exchange heat with the outside air and reduce the energy consumption. The temperature in the cabinet can be detected by the temperature sensor. When the limit value is reached, the crushing rod can break the glass cover, so that the dry powder can be sprayed into the cabinet through the installation port, which can extinguish the fire and reduce the risk of fire caused by fire. loss.

Description

A transformer electrical cabinet

technical field

The invention relates to the technical field of electrical cabinets, more particularly, to a transformer electrical cabinet.

Background technique

The electrical components in the electrical cabinet of the transformer tend to generate a large amount of heat during work due to the electrical load. The generated heat can easily cause the transformer insulation to age and work efficiency to drop. When the heat generated exceeds the heat resistance level of the transformer After that, it is very easy to cause the transformer to be damaged due to high temperature. Therefore, the heat effect of the current transformer electrical cabinet fan is not good, often due to high temperature damage accidents, and the electrical cabinet is easy to catch fire, resulting in losses.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a transformer electrical cabinet.

In order to achieve the above purpose, the technical solution adopted in the present invention is as follows: a transformer electrical cabinet, including a cabinet body, heat absorbing plates are fixedly installed on both sides of the inside of the cabinet body, and a heat dissipation cavity is formed between the heat absorbing plates and the inner side walls of the cabinet , the two outer surfaces of the cabinet are provided with a plurality of heat dissipation slots, the heat dissipation slots run through the heat dissipation cavity, the lower end of the heat absorption plate is provided with an air outlet, and the upper end of the inside of the cabinet is fixedly installed with a support plate, and the support plate A partition is fixedly installed between the surface and the inner top surface of the cabinet, the partition divides the upper end of the cabinet into two separate chambers, and a dust box is fixedly installed on the upper surface of the cabinet at the position of one chamber , the upper end of the dust box is open, the fan is fixedly installed in the dust box, the lower end of the dust box is connected and installed with an air inlet pipe, and the lower surface of the partition plate is located at the position of the air inlet pipe. Connected to the port, a first solenoid valve is installed in the middle of the air inlet pipe, an air induction pipe is fixedly installed on one surface of the dust box under the fan, and a second solenoid valve is installed in the middle of the air induction pipe. The other chamber at the upper end is filled with dry powder, one end of the air induction pipe is connected to the chamber, the surface of the partition plate is located at the position of the chamber with a plurality of installation openings, and the upper surface of the installation openings is covered with a glass cover plate. Hanging rods are fixedly installed on both ends of the lower surface of the partition plate, and a pull rod is fixedly installed between the two hanger rods. A temperature sensor is installed on one end of the surface, and a single chip microcomputer is installed on one end of the upper surface of the partition, and the single chip is used to control the activation of the first solenoid valve, the second solenoid valve and the crushing mechanism according to the temperature value of the temperature sensor.

Preferably, the crushing mechanism includes a crushing rod, a sliding rod, a spring, two electromagnets and two protruding iron plates, the sliding rod is fixedly installed on the upper surface of the pull rod, the crushing rod and the sliding rod They are all located directly below the installation opening, and a channel through the lower surface is opened inside the crushing rod. The crushing rod is sleeved on the sliding rod through the channel. The two protruding iron plates are fixed and welded on the lower ends of both sides of the crushing rod. The electromagnets are fixedly installed on the upper surface of the sliding rod, and the two electromagnets are adsorbed with the protruding iron plate in the energized state.

Preferably, a first filter screen is fixedly installed in the heat dissipation slot.

Preferably, a second filter screen is fixedly installed on the open upper end of the dust box.

Preferably, when the temperature sensor detects that the temperature inside the cabinet reaches a limit value, the single-chip microcomputer controls the first solenoid valve to be closed, the second solenoid valve to be opened, and the electromagnet to be powered off.

Preferably, a plurality of sets of cooling fins are fixedly mounted on the surface of the heat absorbing plate.

Compared with the prior art, the advantages of the present invention are:

The invention can absorb the heat inside the cabinet by arranging the heat absorbing plates on both sides inside the cabinet, so as to exchange heat with the outside air and reduce the temperature in the cabinet. When the temperature in the cabinet is high, the fan can blow air into the cabinet. Increase the flow and flow rate of the air in the cabinet, thereby reducing the internal temperature. When a fire occurs inside the cabinet, the temperature will increase a lot. The temperature can be detected by the temperature sensor. When the limit value is reached, the single-chip microcomputer controls the first solenoid valve to close and the second The solenoid valve is turned on and the electromagnet is powered off. At this time, the protruding iron plate is separated from the electromagnet, and the crushing rod rises rapidly under the elastic force of the spring, which can break the glass cover. At this time, the wind blown by the fan can pass through the induced wind. The tube enters the dry powder chamber, so that the dry powder is sprayed into the inside of the cabinet through the installation port, which plays the role of extinguishing the fire, thereby reducing the loss caused by the fire.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a structural diagram of a transformer electrical cabinet of the present invention;

Fig. 2 is a sectional view of a transformer electrical cabinet of the present invention;

Fig. 3 is the enlarged schematic diagram of the structure at A place in Fig. 2;

Fig. 4 is the structure diagram of the heat absorbing plate in the present invention.

In the picture: 1 cabinet, 2 heat absorbing plate, 3 cooling slot, 4 first filter screen, 5 air outlet, 6 heat sink, 7 support plate, 8 partition plate, 9 dry powder, 10 single chip microcomputer, 11 temperature sensor, 12 port, 13 air inlet pipe, 14 first solenoid valve, 15 dust box, 16 second filter screen, 17 fan, 18 air duct, 19 second solenoid valve, 20 installation port, 21 glass cover, 22 hanger Rod, 23 pull rod, 24 crush rod, 25 slideway, 26 slide rod, 27 protruding iron plate, 28 spring, 29 electromagnet.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.

Referring to FIG. 1 and FIG. 2 , the present invention provides a transformer electrical cabinet, including a cabinet body 1 , a heat absorbing plate 2 is fixedly installed on both sides of the inside of the cabinet body 1 , and the heat absorbing plate 2 is formed between the inner side wall of the cabinet body 1 . The heat dissipation cavity, the two outer surfaces of the cabinet body 1 are provided with a plurality of heat dissipation slots 3, the heat dissipation slots 3 pass through the heat dissipation cavity, the lower end of the heat absorption plate 2 is provided with an air outlet 5, and the upper end of the cabinet body 1 is fixedly installed with a support plate 7. A partition 8 is fixedly installed between the upper surface of the support plate 7 and the inner top surface of the cabinet 1. The partition 8 divides the inner upper end of the cabinet 1 into two separate chambers, and the upper surface of the cabinet 1 is fixed in one chamber. A dust-proof box 15 is installed, the upper end of the dust-proof box 15 is in an open state, a fan 17 is fixedly installed in the dust-proof box 15, an air inlet duct 13 is connected to the lower end of the dust-proof box 15, and the lower surface of the partition 7 is located in the air inlet duct 13. A port 12 is opened at the position, the air inlet duct 13 is communicated with the port 12, a first solenoid valve 14 is installed in the middle of the air inlet duct 13, and an air induction duct 18 is fixedly installed on one side surface of the dust box 14 under the fan 17, which leads to a A second solenoid valve 14 is installed in the middle of the air duct 18, another chamber at the inner upper end of the cabinet 1 is filled with dry powder 9, one end of the air duct 18 is connected to the chamber, and the surface of the partition 8 is located at the position of the chamber. There are two installation openings 20 , the upper surface of the installation opening 20 is covered with a glass cover plate 21 , the two ends of the lower surface of the partition plate 8 are fixedly installed with hanger rods 22 , and a pull rod 23 is fixedly installed between the two hanger rods 22 . A breaking mechanism for breaking the glass cover plate 21 is installed at the position of the mouth 20, a temperature sensor 11 is installed on one end of the lower surface of the partition plate 8, and a single-chip microcomputer 10 is installed on one end of the upper surface of the partition plate 8. Numerically control the activation of the first solenoid valve 14, the second solenoid valve 19 and the crushing mechanism.

Referring to FIG. 3 , in this embodiment, the crushing mechanism includes a crushing rod 24 , a sliding rod 26 , a spring 28 , two electromagnets 29 and two protruding iron plates 27 , and the sliding rod 26 is fixedly installed on the upper surface of the pulling rod 23 , the crushing rod 24 and the sliding rod 26 are both located directly below the installation port 20, the crushing rod 24 is provided with a channel 25 penetrating the lower surface, the crushing rod 24 is sleeved on the sliding rod 26 through the channel 25, and the two protruding iron The plate 27 is fixedly welded on the lower ends of the two sides of the crushing rod 24 , and the two electromagnets 29 are fixedly installed on the upper surface of the sliding rod 26 , and the two electromagnets 29 are attracted to the protruding iron plate 27 in the power-on state.

In this embodiment, the first filter screen 4 is fixedly installed in the heat dissipation slot 3 to prevent the entry of external dust.

In this embodiment, a second filter screen 16 is fixedly installed on the upper open end of the dustproof box 15 to prevent external dust from entering.

In this embodiment, when the temperature sensor 11 detects that the internal temperature of the cabinet 1 reaches a limit value, the single-chip microcomputer 10 controls the first solenoid valve 14 to close, the second solenoid valve 19 to open, and the electromagnet 29 to be powered off.

Referring to FIG. 4 , in this embodiment, a plurality of groups of heat sinks 6 are fixedly mounted on the surface of the heat absorbing plate 2 , which further improves the heat exchange efficiency of the heat sink 2 .

Working principle: By setting the heat absorbing plates 2 on both sides of the cabinet 1, the heat inside the cabinet 1 can be absorbed, so as to exchange heat with the outside air and reduce the temperature inside the cabinet 1. When the temperature inside the cabinet 1 is high , the fan 17 can blow air into the cabinet 1 to increase the flow and flow rate of the air in the cabinet 1, thereby reducing the internal temperature. When a fire occurs inside the cabinet 1, the temperature will increase a lot. The temperature sensor 11 can detect the temperature. When the limit value is reached, the single-chip microcomputer 10 controls the first solenoid valve 14 to be closed, the second solenoid valve 19 to be opened, and the electromagnet 29 to be powered off. At this time, the protruding iron plate 27 is separated from the electromagnet 29, and the crushing rod 24 acts on the elastic force of the spring 28. It rises rapidly and can break the glass cover 29. At this time, the wind blown by the fan 17 can enter the chamber of the dry powder 9 through the air duct 18, so that the dry powder 9 is sprayed into the cabinet 1 through the installation port 20, and the to extinguishing the fire.

Although the embodiments of the present invention are described in conjunction with the accompanying drawings, the patent owner can make various changes or modifications within the scope of the appended claims, as long as the protection scope described in the claims of the present invention is not exceeded, all should be within the protection scope of the present invention.

Claims (6)

1. The utility model provides a transformer electric appliance cabinet, includes the cabinet body, its characterized in that: the improved cabinet is characterized in that heat absorbing plates are fixedly mounted on two sides of the interior of the cabinet body, a heat dissipation cavity is formed between each heat absorbing plate and the inner side wall of the cabinet body, a plurality of heat dissipation notches are formed in the surfaces of two outer sides of the cabinet body, each heat dissipation notch penetrates through the heat dissipation cavity, an air outlet is formed in the lower end of each heat absorbing plate, a supporting plate is fixedly mounted at the upper end of the interior of the cabinet body, a partition plate is fixedly mounted between the upper surface of the supporting plate and the top surface of the interior of the cabinet body, the partition plate divides the upper end of the interior of the cabinet body into two independent cavities, a dust-proof box is fixedly mounted at the upper surface of one cavity, a fan is fixedly mounted in the dust-proof box in an open state, a fan is fixedly mounted in the dust-proof box, an air inlet pipe is, the utility model discloses a broken glass cover plate, including the suction pipe, the suction pipe has the second solenoid valve, another cavity of internal portion upper end of cabinet is filled with dry powder, suction pipe one end communicates in this cavity, the baffle surface is located this cavity position and has seted up a plurality of installing ports, and the installing port upper surface is covered with glass apron, baffle lower surface both ends fixed mounting has the jib, two fixed mounting has the pull rod between the jib, and the broken mechanism that is used for hitting broken glass apron is all installed to the pull rod upper surface that is located the installing port position, temperature sensor is installed to baffle lower surface one end, and the singlechip is installed to baffle upper surface one end, the singlechip is used for the start-up of first solenoid valve of temperature value control according to temperature sensor.

2. The transformer electric appliance cabinet as claimed in claim 1, wherein: broken mechanism is including hitting garrulous pole, slide bar, spring, two electro-magnets and two protrusion iron plates, slide bar fixed mounting is at the pull rod upper surface, hit garrulous pole and slide bar and all be located under the installing port, hit inside the passageway of having a perfect understanding the lower surface of offering of garrulous pole, hit garrulous pole and establish on the litter through the passageway cover, two protrusion iron plate fixed welding is at the lower extreme of hitting garrulous pole both sides, two electro-magnet fixed mounting is at the slide bar upper surface, and two electro-magnets adsorb with protrusion iron plate under the on-state.

3. The transformer electric appliance cabinet as claimed in claim 1, wherein: a first filter screen is fixedly arranged on the heat dissipation notch.

4. The transformer electric appliance cabinet as claimed in claim 1, wherein: and a second filter screen is fixedly arranged at the upper end of the opening of the dust-proof box.

5. The transformer electric appliance cabinet as claimed in claim 1, wherein: when the temperature sensor detects that the temperature in the cabinet body reaches a limit value, the single chip microcomputer controls the first electromagnetic valve to be closed, the second electromagnetic valve to be opened and the electromagnet to be powered off.

6. The transformer electric appliance cabinet as claimed in claim 1, wherein: and a plurality of groups of radiating fins are fixedly arranged on the surface of the heat absorbing plate.

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