CN210778400U - A high temperature environment automatic control switch - Google Patents

Abstract

The utility model discloses an automatic control switch in a high temperature environment, which relates to the technical field of electrical control equipment, comprising an automatic control switch main body, a cooling fan, a windshield, a circulating water pipe and electrical components. The switch inner casing has an opening on one side of the switch casing, the box cover is detachable and fixed to the opening, the switch inner casing is located in the switch casing, the switch inner casing and the switch casing are relatively fixed, and the left and right sides of the switch inner casing are respectively provided with a The heat dissipation port, the heat dissipation fan is fixed in the heat dissipation port, there is an air outlet on one side of the switch shell, the air outlet and the heat dissipation port are coaxial, one end of the wind deflector is hinged to the upper end of the air outlet, and the bottom of the inner casing has an installation through hole. The bottom has an air inlet, the installation through hole is coaxial with the air inlet, the circulating water pipe is fixed in the installation through hole, and the electrical components are fixed in the inner casing of the switch. The utility model can reduce the temperature of the electric components inside the automatic control switch.

Description

A high temperature environment automatic control switch

technical field

The utility model relates to the technical field of electrical control equipment, in particular to an automatic control switch in a high temperature environment.

Background technique

The control switch is a special switch used for process control of electrical control and thermal instrumentation. There are specific functions such as positioning operation, self-resetting operation, positioning-self-recovering operation, blocking operation, positioning-blocking operation, and self-resetting-positioning-blocking operation.

For automatic control switches used in high temperature environments, in order to ensure that the electrical components inside the switch reduce the impact of the external high temperature environment, sealed enclosures are often used to isolate the external high temperature. However, the heat generated by the internal electrical components during operation is also difficult to diffuse outward, and the long-running time may easily cause the internal temperature of the casing to rise too high, resulting in damage to the internal electrical components and affecting the normal use of the automatic control switch.

Therefore, a new type of automatic control switch is urgently needed in the market to solve the above problems.

Utility model content

The purpose of the present utility model is to provide an automatic control switch for a high temperature environment, which is used to solve the technical problems existing in the above-mentioned prior art and reduce the ambient temperature during the operation of the internal electrical components.

For achieving the above object, the utility model provides the following scheme:

The utility model discloses an automatic control switch in a high temperature environment, which comprises an automatic control switch main body, a cooling fan, a windshield, a circulating water pipe and electrical components. One side of the switch casing has an opening, the box cover is detachably fixed to the opening, the switch inner casing is located in the switch casing, the switch inner casing and the switch casing are relatively fixed, and the switch inner casing is relatively fixed to the switch casing. The left and right sides of the switch inner casing are respectively provided with a heat dissipation port, the heat dissipation fan is fixed in the heat dissipation port, and one side of the switch shell is provided with an air outlet, and the air outlet and the heat dissipation port are coaxial, so One end of the wind deflector is hinged to the upper end of the air outlet, the bottom of the inner casing has an installation through hole, the bottom of the outer casing has an air inlet, and the installation through hole is coaxial with the air inlet , the air inlet is located below the installation through hole, the circulating water pipe is fixed in the installation through hole, and the electrical component is fixed inside the switch inner casing.

Preferably, it further includes a support plate, a cover plate and an elastic support structure, the support plate is fixed on the lower end surface of the air inlet, the cover plate is located on the upper end surface of the air inlet, and the first end of the elastic support structure The second end of the elastic support structure is fixed on the upper end surface of the support plate, and the support plate is provided with a plurality of ventilation holes.

Preferably, the elastic support structure includes a first pull ring, a second pull ring and a spring, the first pull ring and the second pull ring are respectively fixed to two ends of the spring, the first pull ring is fixed on the lower end surface of the cover plate, and the second pull ring is fixed on the upper end surface of the supporting plate.

Preferably, both the water inlet end and the water outlet end of the circulating water pipe pass through the bottom of the switch casing, and the water inlet end and the water outlet end of the circulating water pipe are located outside the switch casing.

Preferably, it also includes a limit block and a first sealing ring, the limit block is fixed in the air outlet, the limit block is located inside the wind deflector, and the inner side of the first sealing ring is fixed On the outer side of the limiting block, the outer side of the first sealing ring is in contact with the inner side of the wind deflector.

Preferably, it also includes four screws and a second sealing ring, the box cover and the shell are both regular hexahedrons, the four corners of the box cover have through holes, the switch shell has four threaded holes, the The position of the threaded hole is opposite to the through hole, the screw passes through the through hole, the screw is threadedly connected with the threaded hole, and the second sealing ring is fixed between the box cover and the switch shell. between.

Preferably, it also includes two connecting ears, the two connecting ears are fixed on the outer wall of the switch housing, and the connecting ears are provided with mounting holes.

Preferably, the thermal insulation layer is further included, and the thermal insulation layer is fixed between the switch outer shell and the switch inner casing.

The utility model has achieved the following technical effects with respect to the prior art:

1. The high temperature environment automatically controls the switch. When the cooling fan is started, the heat generated by the electrical components inside the switch inner casing can be discharged to the outside world, reducing the temperature of the operating environment of the electrical components inside the switch inner casing. The hot air blows to the air baffle of the air outlet, the air baffle is blown up by the wind from the vertical state to the inclined state, and the hot air inside the inner casing of the switch is discharged from the air outlet; after the cooling fan stops running, the air baffle recovers with gravity To the vertical state, the high heat from the outside is blocked from entering the inner casing of the switch.

2. During the process of cooling fan exhaust and heat dissipation, because the inside of the switch inner casing is in a negative pressure state, the outside air enters the switch inner casing from the air inlet after being cooled by the circulating water pipe, which makes the operating environment temperature of the internal electrical components drop. Ensure that electrical components can run stably for a long time.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a high-temperature environment automatic control switch according to the present embodiment;

FIG. 2 is a schematic structural diagram of the front view of the switch shell and the switch inner sleeve according to the present embodiment;

Fig. 3 is a schematic view of the enlarged structure of part A in Fig. 2;

FIG. 4 is a schematic structural diagram of the elastic support mechanism of this embodiment;

FIG. 5 is a schematic diagram of the structure of the support plate of this embodiment.

In the figure: 1. Main body of automatic control switch; 2. Switch shell; 3. Switch inner casing; 4. Air outlet; 5. Windshield; 6. Cooling fan; 7. Mounting hole; 8. Air inlet; , circulating water pipe; 10, cover plate; 11, support plate; 12, elastic support mechanism; 1201, first pull ring; 1202, second pull ring; 1203, spring; 13, limit block; 14, first sealing ring ; 15, insulation layer; 16, second sealing ring; 17, connecting ear; 18, box cover; 19, ventilation hole.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The purpose of the present utility model is to provide an automatic control switch for a high temperature environment, which is used to solve the technical problems existing in the above-mentioned prior art and reduce the ambient temperature during the operation of the internal electrical components.

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1-5, this embodiment provides an automatic control switch for a high temperature environment, including an automatic control switch body 1, a cooling fan 6, a wind shield 5, a circulating water pipe 9 and electrical components. The automatic control switch main body 1 includes a switch outer shell 2 , a box cover 18 and a switch inner casing 3 . One side of the switch housing 2 has an opening, and the box cover 18 is detachably fixed to the opening. When the parts inside the switch housing 2 are damaged, the box cover 18 can be opened for maintenance. The switch inner casing 3 is located in the switch casing 2 , and the switch inner casing 3 is relatively fixed to the switch casing 2 . The left and right sides of the switch inner casing 3 are respectively provided with a heat dissipation port, the heat dissipation fan 6 is fixed in the heat dissipation port, and the heat dissipation fan 6 can be electrically connected with the external power supply. One side of the switch housing 2 has an air outlet 4, and the air outlet 4 is coaxial with the heat dissipation port, and the hot air in the switch inner casing 3 is blown out from the air outlet 4 through the heat dissipation fan 6. One end of the wind deflector 5 is hinged to the upper end of the air outlet 4. When the hot air is discharged to the outside, the hot air will blow the wind deflector 5, so that the wind deflector 5 is inclined to form a gap, and the hot air is discharged from the gap. The bottom of the inner casing has an installation through hole 7, and the bottom of the outer casing has an air inlet 8. The installation through hole 7 is coaxial with the air inlet 8, and the air inlet 8 is located below the installation through hole 7. When the internal hot air is discharged, Negative pressure is generated inside the switch inner casing 3 , so that the outside air is sucked into the switch inner casing 3 from the air inlet 8 . The circulating water pipe 9 is fixed in the installation through hole 7 by welding, and the air entering from the outside can be further cooled through the circulating water pipe 9 , thereby cooling the internal electrical components of the switch inner casing 3 . The electrical components are fixed inside the switch inner casing 3, and the installation of the electrical components inside the automatic control switch main body 1 is the same as the installation of the electrical components in the automatic control switch in the prior art, so it is not repeated here.

When in use, when the temperature of the inner casing 3 of the switch is too high, the cooling fan 6 is turned on, and the cooling fan 6 rotates to blow the hot air inside the switch sleeve to the air outlet 4, and the hot air blows the windshield 5 located at the air outlet 4. After starting, there is a gap, and the hot air is discharged from the gap. When the hot air in the switch inner casing 3 is discharged from the air outlet, a negative pressure is generated inside, and the outside air is sucked into the switch inner casing 3 through the air inlet 8. When the outside air passes through the circulating water pipe 9, it is further cooled down, and then The cold air is delivered to the inside of the switch inner casing 3 to cool down the electrical components.

In this embodiment, a support plate 11 , a cover plate 10 and an elastic support structure 12 are also included. The support plate 11 is fixed on the lower end surface of the air inlet 8 , and the cover plate 10 is located on the upper end surface of the air inlet 8 . The first end of the elastic support structure 12 is fixed to the lower end surface of the cover plate 10 , the second end of the elastic support structure 12 is fixed to the upper end surface of the support plate 11 , and the support plate 11 has a plurality of ventilation holes 19 . When the outside air passes through the support plate 11 , it first enters through the ventilation holes 19 , and then the cover plate 10 is blown upwards. After the cover plate 10 is blown up, a gap is formed, and cold air enters through the gap. At the same time, the elastic support structure 12 limits the cover plate 10 to prevent the cover plate 10 from being blown away. When no air exchange is required, only the cooling fan 6 needs to be stopped, the wind deflector 5 will sag due to its own gravity, and the cover plate 10 will also drop due to gravity and the pulling force of the support structure of the spring 1203 .

Further, in this embodiment, the elastic support structure 12 includes a first pull ring 1201 , a second pull ring 1202 and a spring 1203 . The first pull ring 1201 and the second pull ring 1202 are respectively fixed to both ends of the spring 1203 . The pulling force on the first pull ring 1201 and the second pull ring 1202 is achieved by the spring 1203, so as to prevent the cover plate 10 from being blown away. Those skilled in the art can also adjust the specific structures of the first pull ring 1201 and the second pull ring 1202 according to actual needs, as long as the first pull ring 1201 and the second pull ring 1202 can be fixed on the cover plate 10 and the support plate 11 respectively on.

The function of the circulating water pipe 9 is to cool the incoming air. In this embodiment, the water inlet and outlet ends of the circulating water pipe 9 pass through the bottom of the switch casing 2 , and the water inlet and outlet ends of the circulating water pipe 9 are located outside the switch casing 2 . The water inlet end and the water outlet end of the circulating water pipe 9 are respectively connected to the water source and the circulating pump, and the cold water is input from the water inlet end. It is then transported to the water source by the circulating pump for reuse. This setting realizes the recycling of water, saves water resources,

In order to improve the sealing effect, this embodiment also includes a limit block 13 and a first sealing ring 14 , the limit block 13 is fixed in the air outlet 4 , the limit block 13 is located inside the windshield 5 , and the first sealing ring 14 is The inner side is pasted on the outer side of the limiting block 13 by glue, and the outer side of the first sealing ring 14 is in contact with the inner side of the wind deflector 5 . When the wind deflector 5 falls down due to its own weight, the outside hot air can be effectively prevented from entering the inside of the switch inner casing 3 .

Further, in order to realize the detachable fixation of the box cover 18 and the switch housing 2, four screws and a second sealing ring 16 are also included in this embodiment. The shape of the box cover 18 and the switch housing 2 are both There are through holes at the four corners of 18, the switch housing 2 has four threaded holes, the threaded holes and the through holes are located directly, the screws pass through the through holes, the screws are threadedly connected with the threaded holes, and the second sealing ring 16 is fixed on the box cover 18 and the threaded hole. between switch housings 2. This arrangement can achieve relative sealing between the box cover 18 and the switch housing 2, and is not easy to loosen during use.

In this embodiment, two connecting ears 17 are also included. The two connecting ears 17 are fixed on the outer wall of the switch housing 2 by welding, and the connecting ears 17 are provided with mounting holes. The automatic control switch main body 1 can be connected to the position to be installed through the connecting ears 17 .

In order to prevent the external air from affecting the internal temperature through heat exchange, the present embodiment also includes a thermal insulation layer 15 , and the thermal insulation layer 15 is fixed between the switch casing 2 and the switch inner casing 3 by welding. The thermal insulation layer 15 can effectively ensure that the temperature inside the switch inner casing 3 does not exchange heat with the outside.

In this specification, specific examples are used to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for those of ordinary skill in the art, According to the idea of the present invention, there will be changes in the specific implementation and application scope. In conclusion, the content of this specification should not be construed as a limitation on the present invention.

Claims (8)

1. The utility model provides a high temperature environment automatic control switch which characterized in that: including automatic control switch main part, heat dissipation fan, deep bead, circulating pipe and electrical components, the automatic control switch main part includes switch shell, lid and switch endotheca shell, the one side of switch shell has the opening, the lid can be dismantled and be fixed in the opening, switch endotheca shell is located the switch shell, switch endotheca shell with switch shell relatively fixed, the left and right sides of switch endotheca shell has a thermovent respectively, the heat dissipation fan is fixed in the thermovent, one side of switch shell has the air outlet, the air outlet with the thermovent is coaxial, the one end of deep bead articulates in the upper end of air outlet, the bottom of endotheca shell has an installation through-hole, the shell bottom has an air intake, the installation through-hole with the air intake is coaxial, the air intake is located the below of installation through-hole, the circulating water pipe is fixed in the mounting through hole, and the electrical element is fixed in the switch inner casing.

2. The automatic control switch for high-temperature environment according to claim 1, wherein: the air inlet structure comprises an air inlet and is characterized by further comprising a supporting plate, a cover plate and an elastic supporting structure, wherein the supporting plate is fixed on the lower end face of the air inlet, the cover plate is located on the upper end face of the air inlet, the first end of the elastic supporting structure is fixed on the lower end face of the cover plate, the second end of the elastic supporting structure is fixed on the upper end face of the supporting plate, and the supporting plate is provided with a plurality of air vents.

3. The automatic control switch for high temperature environment according to claim 2, wherein: the elastic supporting structure comprises a first pull ring, a second pull ring and a spring, the first pull ring and the second pull ring are respectively fixed at two ends of the spring, the first pull ring is fixed at the lower end face of the cover plate, and the second pull ring is fixed at the upper end face of the supporting plate.

4. The automatic control switch for high-temperature environment according to claim 1, wherein: the water inlet end and the water outlet end of the circulating water pipe penetrate through the bottom of the switch shell, and the water inlet end and the water outlet end of the circulating water pipe are located on the outer side of the switch shell.

5. The automatic control switch for high-temperature environment according to claim 1, wherein: still include stopper and first sealing washer, the stopper is fixed in the air outlet, the stopper is located the deep bead is inboard, the medial surface of first sealing washer is fixed in the lateral surface of stopper, the lateral surface of first sealing washer with the inboard counterbalance of deep bead.

6. The automatic control switch for high-temperature environment according to claim 1, wherein: still include four screws and second sealing washer, the lid with the shell is regular hexahedron, the four corners department of lid has the through-hole, switch shell has four screw holes, the screw hole with the through-hole position is just right, the screw passes the through-hole, the screw with screw hole threaded connection, the second sealing washer is fixed in the lid with between the switch shell.

7. The automatic control switch for high-temperature environment according to claim 1, wherein: still include two engaging lugs, two the engaging lug is fixed in on the outer wall of switch shell, the engaging lug is equipped with the mounting hole.

8. The automatic control switch for high-temperature environment according to claim 1, wherein: the switch is characterized by further comprising an insulating layer, wherein the insulating layer is fixed between the switch outer shell and the switch inner casing.

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