CN216197613U - Automatic cover plate - Google Patents

Abstract

The patent relates to an automatic cover plate, which comprises a cover plate, wherein the cover plate is arranged at a platform inside a tower barrel and is opened upwards for a vehicle body without a climbing device to pass through; the motor drives the cover plate to open or close, and the motor is connected with the cover plate through a rotating assembly; the cover plate controller comprises a shell and a cavity inside the shell, wherein the cavity comprises a semiconductor refrigerating piece, and the semiconductor refrigerating piece is controlled by a control circuit board to realize refrigeration and heating; a control circuit board; the inner and outer radiating fins, the semiconductor refrigerating fin and the inner and outer radiating fins act together to maintain the internal environment of the cover plate controller at a proper working temperature.

Description

Automatic cover plate

Technical Field

This patent belongs to wind generating set auxiliary assembly field, particularly relates to an automatic apron.

Background

The installed capacity of the wind power generation serving as the main utilization mode of wind energy also keeps a higher increasing speed. In order to obtain more stable wind energy in wind power generation, the tower of the wind driven generator is as high as tens of meters or even hundreds of meters. This makes the workman all take very big risk when installing, overhauing, maintaining, and work efficiency also receives very big influence.

The climbing ladder in the tower barrel of the wind driven generator is provided with a plurality of platforms which are arranged at intervals along the height direction of the tower barrel of the wind driven generator, each platform is provided with a channel for passing through a vehicle body without a climbing device, and the opening and closing of the channels are completed by a cover plate. The working range of the automatic cover plate controller of the climbing-free device is generally-25 ℃ to 60 ℃, and the temperature has great influence on electronic equipment. Because the inside ambient temperature of wind power tower cylinder can reach more than 50 ℃ in summer, in addition electronic equipment is in operation the heat production of oneself, cause electronic equipment's ambient temperature to be far above exempting from to climb the automatic apron working temperature within range of ware even more, lead to electronic equipment's thermal noise increase, stability reduces. In northern areas, the problems of incapability of starting, low-temperature crash, low-temperature noise and the like can occur when some climbing-free device control systems are influenced by low temperature in winter.

SUMMERY OF THE UTILITY MODEL

This patent is just proposed based on prior art's above-mentioned demand, and the technical problem that this patent will be solved provides an automatic apron, makes the temperature of automatic apron controller during operation maintain at certain suitable temperature range of working to guarantee automatic apron normal operating.

In order to solve the above problem, the technical scheme provided by the patent comprises:

the automatic cover plate comprises an automatic cover plate assembly, wherein the automatic cover plate assembly comprises a cover plate, the cover plate is arranged at a platform inside a tower, the cover plate is in pivot connection with the platform, and the cover plate is opened upwards for a vehicle body without an climber to pass through; the motor drives the cover plate to open or close, and the motor is connected with the cover plate through a rotating assembly; the cover plate controller comprises a shell and a cavity inside the shell, wherein the cavity comprises a semiconductor refrigeration piece, and the semiconductor refrigeration piece is embedded in the shell of the cover plate controller; the control circuit board controls the traction of the motor to the cover plate, the control circuit board further comprises a temperature control circuit, a first relay and a second relay in the temperature control circuit are two double-open double-close relays, the semiconductor chilling plates are controlled by the two relays in a correlation mode, one output end of the first relay and one output end of the second relay are connected in parallel to the anode of the semiconductor chilling plate, and the other output end of the first relay and the other output end of the second relay are also connected in parallel to the cathode of the semiconductor chilling plate; the first relay is also connected with the normally open temperature switch, if the environmental temperature is lower than the set working temperature of the normally open temperature switch, the corresponding contact of the first relay is closed, the circuit is conducted, the positive current flows in the semiconductor refrigerating sheet, the positive heat is released to improve the temperature in the cavity, and the reverse side is refrigerated; the second relay is connected with a microcontroller in the control circuit board, the microcontroller comprises a temperature sensor, and when the ambient temperature is higher than the temperature set in the microcontroller, a pin output level of the microcontroller drives the second relay to be switched on, so that reverse current flows through the inside of the semiconductor refrigeration sheet, the front side of the semiconductor refrigeration sheet absorbs heat to reduce the temperature in the cavity, and the back side of the semiconductor refrigeration sheet heats; the semiconductor refrigerating plate and the inner and outer radiating plates act together to maintain the working temperature of the internal environment of the cover plate controller. Through circuit design, the internal temperature of the cover plate controller is kept in a range capable of enabling internal elements to work normally, so that the influence on the work of the automatic cover plate due to overhigh internal temperature of the cover plate controller is avoided.

Preferably, the automatic cover plate further comprises a limiting device, wherein the limiting device comprises a first limiting switch and a second limiting switch, and the first limiting switch and the second limiting switch are both located on a rotating path of the cover plate surface. The stop of the motor is controlled through the limit switch, and energy loss is reduced.

Preferably, the first limit switch is located on a shell of the cover plate controller, and the second limit switch is located on a cover plate fixing plate.

Preferably, in the moving process of the cover plate, when the cover plate rotates to the position of the first limit switch and triggers the first limit switch, the motor stops; and when the cover plate rotates to the position of the second limit switch and triggers the second limit switch, the motor stops.

Preferably, the ladder comprises a ladder climbing track, wherein 4 travel switches including a first travel switch, a second travel switch, a third travel switch and a fourth travel switch are arranged on the ladder climbing track at equal intervals, the third travel switch and the fourth travel switch are located above the platform, and the first travel switch and the second travel switch are located below the platform.

Preferably, the semiconductor chilling plate does not operate when the operating environment temperature is maintained within a prescribed operating environment temperature range, that is, the operating temperature is higher than the operating temperature of the normally open temperature switch and lower than the temperature set in the microcontroller.

Preferably, in the process that the semiconductor refrigerating piece releases heat in the front face, when the temperature in the cavity reaches the working temperature of the normally-open temperature switch, the normally-open temperature switch is closed, the first relay is triggered to be disconnected, and the semiconductor refrigerating piece stops working.

Preferably, the pin of the microcontroller is sequentially connected with the optocoupler, the resistor, the triode and the second relay, and the pin outputs a high level and drives the optocoupler to output the high level so as to conduct the triode, so that the second relay is attracted to realize the reversing of the semiconductor refrigeration piece and absorb heat and cool the front surface of the semiconductor refrigeration piece.

Preferably, the device comprises a switching value acquisition unit, and the acquired data comprises data transmitted by a main control button, a vehicle body control button and 4 travel switches.

Compared with the prior art, the automatic cover plate assembly temperature control device can provide a relatively stable working temperature range for the automatic cover plate assembly so as to improve the stability of the system.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a side view block diagram of the automatic cover plate assembly of the present invention;

FIG. 2 is a perspective view of an automatic cover plate according to the present invention;

FIG. 3 is a first partial circuit block diagram of the microcontroller on the circuit control board of the present invention;

FIG. 4 is a second partial circuit block diagram of the microcontroller on the circuit control board of the present invention;

FIG. 5 is a third circuit block diagram of the microcontroller on the circuit control board of the present invention;

FIG. 6 is a fourth part of the circuit structure of the microcontroller on the circuit control board of the present invention;

FIG. 7 is a fifth part of the circuit block diagram of the microcontroller on the circuit control board of the present invention;

FIG. 8 is a first partial circuit configuration diagram of the temperature control on the circuit control board of the utility model;

FIG. 9 is a second partial circuit configuration diagram of the temperature control on the circuit control board of the utility model;

FIG. 10 is a third circuit configuration diagram of the temperature control on the circuit control board of the present invention;

fig. 11 is a circuit diagram of a switching value input port on the circuit control board according to the present invention.

Reference numerals:

1. a cover plate; 2. a traction device; 3. a rotating assembly; 4. a motor; 5. a control circuit board; 6. a semiconductor refrigeration sheet; 7. a heat sink; 701. an inner heat sink; 702. an outer heat-dissipating sheet; 8. a limiting device; 801. a first limit switch; 802. a second limit switch; 9. a cover plate control machine; 901. a housing; 902. a chamber; 10. climbing ladder tracks; 11. a travel switch; 1101. a first travel switch; 1102. a second travel switch; 1103. a third travel switch; 1104. a fourth travel switch; 12. a relay; 1201. a first relay; 1202. a second relay; 13. a normally open temperature switch; 14. a microcontroller; 15. a resistance; 1501. a resistor R41; 1502. a resistor R42; 1503. a resistor R44; 16. an optical coupler OP 17; 17. a transistor Q43; 18. a platform.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.

Example 1

The present embodiment provides a creeper-less automated cover assembly, as shown in fig. 1 and 2.

A plurality of platforms 18 are arranged on a ladder stand in a tower barrel of the wind driven generator, the platforms 18 are arranged at intervals along the height direction of the tower barrel of the wind driven generator, a channel for passing through a vehicle body of a climbing-free device is formed in each platform 18, and the opening and closing of the channel are realized by controlling a cover plate through a controller.

The climbing-free device comprises a climbing-free device climbing ladder track 10, a climbing-free device vehicle body, an automatic cover plate assembly, a limiting device 8 and a main control box.

Exempt from climber cat ladder track 10 be equipped with first travel switch 1101, second travel switch 1102, third travel switch 1103 and the travel switch 11 of fourth travel switch 1104 four equidistance on the cat ladder track 10, wherein third travel switch 1103 and fourth travel switch 1104 are located the top of apron 1, and first travel switch 1101 and second travel switch 1102 are located the below of apron 1, judge according to the precedence order that exempt from to climb the ware automobile body and pass through exempt from the direction of climbing the ware automobile body operation. The 4 travel switches 11 are connected with the switching value acquisition unit.

Exempt from to climb the ware automobile body, exempt from to climb the ware automobile body and be exempt from to climb ware user's carrier, have automobile body control button on it, automobile body control button is direct to be connected with the switching value acquisition unit of controller, supplies the person of taking to use control exempt from to climb the ware and go up and down and stop.

The automatic cover plate assembly comprises: a cover plate 1, a cover plate controller 9, and a heat sink 7.

Apron 1, apron 1 sets up in the inside platform 18 department of a tower section of thick bamboo, when apron 1 upwards opens, exposes the passageway of exempting from to climb the operation of ware automobile body, and the ware automobile body that supplies to exempt from to climb passes through, works as exempt from to climb the ware automobile body by supreme back down, apron 1 is closed to guarantee to exempt from to climb the safety of staff on the ware automobile body. The cover plate 1 comprises an upper plate surface and a lower plate surface, the upper plate surface is the surface far away from the tower drum platform 18, and the lower plate surface is the surface close to the tower drum platform 18.

The motor 4, the motor 4 drives the apron 1 is opened or is closed, and the motor 4 is connected through rotating assembly with the apron 1, the last draw gear 2 that is connected with of rotating assembly drives draw gear 2 by the positive and negative rotation control rotating assembly of motor 4 and realizes opening and closing of apron 1. When the cover plate 1 needs to be opened, the motor 4 drives the rotating assembly to pull the traction device 2, so that the distance between the cover plate 1 and the cover plate controller 9 is shortened to open the cover plate 1; when the cover plate 1 needs to be closed, the motor 4 drives the rotating assembly 3, so that the distance between the control machine and the cover plate 1 is increased to close the cover plate 1.

Further, a traction rope is selected as the traction device 2.

The cover plate controller 9 comprises a shell 901 and a cavity 902 inside the shell 901, wherein the cavity 902 comprises a semiconductor refrigeration piece 6, a control circuit board 5, a radiating fin 7, an audible and visual alarm, a main control button and a frequency converter.

The semiconductor refrigeration piece 6 is embedded in the cover plate controller 9 casing 901 and is placed along the parallel direction of the casing 901, one surface of the semiconductor refrigeration piece 6 faces the inside of the chamber 902, the other surface of the semiconductor refrigeration piece 6 faces the outside of the chamber 902, the surface facing the inside of the chamber 902 is the front surface of the semiconductor refrigeration piece 6, and the surface facing the outside of the chamber 902 is the back surface of the semiconductor refrigeration piece 6.

The semiconductor refrigerating sheet 6 is based on the Peltier principle to realize refrigeration and heating, when current passes through a loop formed by different conductors, the non-reversible Joule heat is generated, and the phenomena of heat absorption and heat release can respectively occur at the joints of the different conductors along with the difference of the current directions, so that the purposes of refrigeration and heating are achieved. When current is input to the interior of the chamber in the positive direction, the front side releases heat, so that the temperature in the chamber 902 is increased, and meanwhile, the back side absorbs heat; when the current is reversely input to the inside, the front side absorbs heat, so that the temperature inside the chamber 902 is reduced, and the back side releases heat.

The semiconductor refrigeration piece 6 is connected with 12V direct current voltage, and the reference is made to fig. 8.

And the control circuit board 5 comprises a power circuit, a temperature control circuit, an RS485 bus circuit, a minimum system circuit of a processor, a switching value input port circuit, a motor power supply and a reversing circuit.

The power circuit provides proper voltage for the starting of the temperature control circuit, and after the controller is powered on, the commercial power supply establishes direct current 12V voltage through an AC-to-DC circuit formed in the following period insensitive to temperature.

Referring to fig. 8-10, the temperature control circuit includes two double-open double-close relays 12 of first relay 1201 and second relay 1202, two double-open double-close relays 12 are the relay 12 that has two normally open contacts and two normally closed contacts, normally open contact is the contact of relay 12 when the coil does not get electricity, off-state, normally closed contact does, and relay 12 is when the coil does not get electricity, the contact of on-state.

The first relay 1201SQ1 and the second relay 1202SQ2 are associated to control the direction of the input current of the semiconductor cooling plate 6, and the heat absorption and heat release functions of the semiconductor cooling plate 6 are realized through currents in different directions.

The common terminal COMA of the first relay 1201SQ1 is connected to the power supply +12V, COMB is connected to GND2, the normally closed terminal SBA is connected to the common terminal COMB of the second relay 1202SQ2, and the normally closed terminal SBB of the first relay 1201SQ1 is connected to the common terminal COMA of the second relay 1202SQ 2.

The SCA end of the first relay 1201SQ1 and the SBA end of the second relay 1202SQ2 are connected in parallel to the anode of the semiconductor cooling chip 6, and the SCB end of the first relay 1201SQ1 and the SBB end of the second relay 1202SQ2 are also connected in parallel to the cathode of the semiconductor cooling chip 6.

One end of a coil SQ1A of the first relay 1201SQ1 is connected to +12V, and the other end thereof is connected to a normally-open temperature switch 13, and the other end of the normally-open temperature switch 13 is connected to GND 2.

The operating temperature of the normally open temperature switch 13 in this embodiment is 20 ℃, and when the internal temperature of the chamber 902 is lower than 20 ℃, the COMA and COMB of the first relay 1201SQ1 are respectively connected with the SCA and the SBA, so that a forward current flows through the inside of the semiconductor cooling plate 6, and the front surface of the semiconductor cooling plate releases heat to increase the internal temperature of the chamber 902. When the temperature inside the chamber 902 reaches 20 ℃, the operating temperature of the normally-open temperature switch 13 is reached, and the state of the normally-open temperature switch 13 is changed from open to closed, so that the coil SQ1A in the first relay 1201 is turned on, and the common terminals COMA and COMB thereof are triggered to be respectively disconnected from the SCA and the SBA, so that no current passes through the inside of the semiconductor refrigeration sheet 6, and heat generation is stopped.

One end of a coil SQ2A of the second relay 1202SQ2 is connected to +12V voltage, and the other end is connected to a transistor Q4317.

Referring to fig. 3 to 10, in the present embodiment, the STM32F103 is selected as a microprocessor, and the microcontroller 14 includes a temperature sensor therein, which is capable of sensing the temperature inside the chamber 902. One port pin of the microcontroller 14 is connected with an optocoupler to drive the transistor Q4317 to be conducted, so as to trigger the second relay 1202, so that a reverse current flows through the semiconductor refrigeration chip 6, and thus heat absorption and refrigeration are performed on the front surface.

The port PB8 of the microprocessor is connected with the anode of the input end of an optocoupler OP 1716 through a resistor R411501, the cathode of the input end of the optocoupler OP 1716 is connected with GND, the collector of the optocoupler OP 1716 is connected with one end of a coil SQ2A of a SQ2 in parallel with +12V, the emitter of the optocoupler is connected with a resistor R421502 and is connected with the base of a triode Q4317, one end of the resistor R441503 is connected with the base of the triode Q4317, one end of the resistor R44 is connected with GND2, the other end of the SQ2A is connected with the collector of the triode Q4317, the triode Q4317 is an NPN triode, and the emitter of the triode Q4317 is connected with GND 2.

Commercial power source access control system normally works, the temperature sensor temperature is read inside microcontroller 14, if it is limited that the acquisition temperature is higher than the inside operating temperature upper limit of cavity 902, microcontroller 14 outputs high level through PB8 foot and drives opto-coupler OP 1716 to output high level, and then switches on triode Q4317, make coil SQ2A coil in second relay 1202SQ2 pass through the electric current, trigger relay's coil SQ2B actuation, lead to flowing through the electric current in semiconductor refrigeration piece 6 be reverse current, promptly semiconductor refrigeration piece 6 front side heat absorption refrigeration.

The temperature inside the cavity 902 of the cover plate controller 9 is controlled in a temperature range capable of maintaining the normal operation of the internal electrical components through the temperature control current, so that the service life of each component is prolonged.

Referring to fig. 11, the switching value input port circuit has 7 sets of input ports, which are respectively connected to a body button, a first limit switch 801, a second limit switch 802, a first stroke switch 1101, a second stroke switch 1102, a third stroke switch 1103, and a fourth stroke switch 1104.

The climb-free device car body button is a normally open self-resetting button arranged on the climb-free device car body, and the climb-free device car body can ascend, descend and stop by triggering the climb-free device car body in different forms.

When the cover plate 1 is completely opened, the first limit switch 801 is triggered, so that the motor 4 stops working; when the switch is completely closed, the second limit switch 802 is triggered, and the motor 4 is controlled to stop working.

When the creeper-free vehicle body passes through the 4 travel switches 11, the travel switches 11 are triggered.

When the climbing-free device vehicle body rises, the first travel switch 1101 is triggered firstly, then the second travel switch 1102 is triggered, the vehicle body continues to rise to trigger the third travel switch 1103, at the moment, the motor 4 operates to open the cover plate 1, the cover plate 1 is completely opened to trigger the first limit switch 801, the motor 4 stops operating, then the fourth travel switch 1104 is triggered, if the fourth travel switch 1104 is triggered, the first limit switch 801 is not triggered, the vehicle body can stop immediately, and the vehicle body is prevented from colliding with the upper end cover plate 1.

When the vehicle body descends, the fourth travel switch 1104 is triggered firstly, then the third travel switch 1103 is triggered, the vehicle body descends continuously to trigger the second travel switch 1102, at the moment, the motor 4 operates the cover plate 1 to be opened, the cover plate 1 is opened completely to trigger the first limit switch 801, so that the motor 4 stops operating, then the first travel switch 1101 is triggered, if the first limit switch 801 is not triggered when the first travel switch 1101 is triggered, the vehicle body stops immediately, and the vehicle body is prevented from colliding with the upper end cover plate 1.

The control circuit board 5 collects and receives signals transmitted from the 4 travel switches 11 through the switching value collecting unit, and can judge the running direction and the running speed of the climbing-free device so as to control the cover plate 1 to be opened and closed.

The automatic cover plate assembly of the climbing-free device further comprises a radiating fin 7, the radiating fin comprises an inner radiating fin 701 and an outer radiating fin 702, the inner radiating fin 701 is arranged on the front face of the semiconductor refrigerating fin 6, the outer radiating fin 702 is arranged on the reverse face of the semiconductor refrigerating fin 6, and the heat exchange rate of the semiconductor refrigerating fin 6 and air is improved under the combined action.

The semiconductor refrigerating fins 6 and the radiating fins 7 work together to maintain the internal environment of the cover plate controller 9 at a temperature suitable for working.

The automatic cover plate assembly of the crawler-free device further comprises a limiting device 8, wherein the limiting device 8 comprises a first limiting switch 801 and a second limiting switch 802, the first limiting switch 801 and the second limiting switch 802 are both positioned on a rotation path of the cover plate 1, the first limiting switch 801 is positioned on a shell 901 of the cover plate controller 9, when the cover plate 1 is opened and rotated and the first limiting switch 801 is triggered, the motor 4 stops rotating, and the traction device 2 pulls the cover plate 1 to keep the current state; when the cover plate 1 is closed to rotate and the second limit switch 802 is triggered, the motor 4 stops rotating, and the traction device 2 pulls the cover plate 1 to keep the current state.

Exempt from to climb automatic apron subassembly of ware still includes the main control box, the main control box includes, main control button, converter and audible-visual annunciator.

Main control button is two and installs and take LA38 to take the lamp from locking-type button switch on main control box panel, and its direct switching value acquisition unit with control circuit board 5 links to each other, and when the lift of ware automobile body is exempted from to climb in control, the running state of ware automobile body is exempted from to climb in the display of button lamp, compares main control button priority with automobile body control button and is higher.

The frequency converter is connected with the relay 12 and the climbing-free device body and is used for driving the current and the torque of the vehicle body driving motor so as to control the running speed and the direction of the climbing-free device.

The audible and visual alarm is arranged on the shell of the control box, and can be fixed at other more suitable places by using an extension line, and the alarm signal can be received by a person in a certain distance away from the person.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.

Claims (9)

1. An automatic cover plate, comprising:

an automated cover assembly, the automated cover assembly comprising,

the cover plate is arranged at a platform inside the tower drum, the cover plate is in pivot connection with the platform, and the cover plate is opened upwards for the climbing-free vehicle body to pass through; the motor drives the cover plate to open or close, and the motor is connected with the cover plate through a rotating assembly;

a cover plate controller, which comprises a shell and a cavity inside the shell,

the chamber is provided with a plurality of holes therein,

the semiconductor refrigerating piece is embedded in the cover plate controller shell;

the control circuit board controls the traction of the motor to the cover plate, the control circuit board further comprises a temperature control circuit, a first relay and a second relay in the temperature control circuit are two double-open double-close relays, the semiconductor chilling plates are controlled by the two relays in a correlation mode, one output end of the first relay and one output end of the second relay are connected in parallel to the anode of the semiconductor chilling plate, and the other output end of the first relay and the other output end of the second relay are also connected in parallel to the cathode of the semiconductor chilling plate;

the first relay is also connected with the normally open temperature switch, if the environmental temperature is lower than the set working temperature of the normally open temperature switch, the corresponding contact of the first relay is closed, the circuit is conducted, the positive current flows in the semiconductor refrigerating sheet, the positive heat is released to improve the temperature in the cavity, and the reverse side is refrigerated;

the second relay is connected with a microcontroller in the control circuit board, the microcontroller comprises a temperature sensor, and when the ambient temperature is higher than the temperature set in the microcontroller, a pin output level of the microcontroller drives the second relay to be switched on, so that reverse current flows through the inside of the semiconductor refrigeration sheet, the front side of the semiconductor refrigeration sheet absorbs heat to reduce the temperature in the cavity, and the back side of the semiconductor refrigeration sheet heats;

the semiconductor refrigerating plate and the inner and outer radiating plates act together to maintain the working temperature of the internal environment of the cover plate controller.

2. The automatic cover plate of claim 1, further comprising a limit device, wherein the limit device comprises a first limit switch and a second limit switch, and the first limit switch and the second limit switch are both located on a rotation path of the cover plate surface.

3. An automatic cover plate according to claim 2, wherein said first limit switch is located on a housing of said cover plate controller and said second limit switch is located on a cover plate fixing plate.

4. The automatic cover plate according to claim 3, wherein during the movement of the cover plate, when the cover plate rotates to the position of the first limit switch and triggers the first limit switch, the motor stops; and when the cover plate rotates to the position of the second limit switch and triggers the second limit switch, the motor stops.

5. The automatic cover plate of claim 1, comprising a ladder rail, wherein the ladder rail is provided with 4 travel switches including a first travel switch, a second travel switch, a third travel switch and a fourth travel switch at equal distances, wherein the third travel switch and the fourth travel switch are positioned above the platform, and the first travel switch and the second travel switch are positioned below the platform.

6. An automatic cover plate according to claim 1, characterized in that the semiconductor cooling plate is not operated when the working environment temperature is maintained within a prescribed working environment temperature range, i.e. the working temperature is higher than the working temperature of the normally open temperature switch and lower than the temperature set in the microcontroller.

7. The automatic cover plate according to claim 1, wherein in the process of heat release of the front surface of the semiconductor chilling plate, when the temperature in the chamber reaches the working temperature of the normally open temperature switch, the normally open temperature switch is closed, the first relay is triggered to be opened, and the semiconductor chilling plate stops working.

8. The automatic cover plate according to claim 1, wherein a pin of the microcontroller is sequentially connected with the optocoupler, the resistor, the triode and the second relay, and the pin outputs a high level and drives the optocoupler to output a high level, so that the triode is switched on, and the second relay is switched on, so that the semiconductor refrigerating sheet is switched to absorb heat on the front surface of the semiconductor refrigerating sheet and cool down the front surface of the semiconductor refrigerating sheet.

9. The automatic cover plate according to claim 1, comprising a switching value acquisition unit, wherein the acquired data comprises data transmitted by a main control button, a vehicle body control button and 4 travel switches.

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