CN113660804B

CN113660804B - Integrated cabinet

Info

Publication number: CN113660804B
Application number: CN202110893592.4A
Authority: CN
Inventors: 陈伟寰; 王国庆; 印超; 钱志刚
Original assignee: Shenzhen Soro Electronics Co ltd
Current assignee: Shenzhen Soro Electronics Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-10-25
Anticipated expiration: 2041-08-04
Also published as: CN113660804A

Abstract

The application discloses integration rack, which comprises a bod, be equipped with the cavity in the fuselage, the lateral wall of fuselage is equipped with the radiating part, be equipped with the louvre on the radiating part, louvre and cavity intercommunication are equipped with the connecting plate on the radiating part, be equipped with the flexible board on the connecting plate, flexible board and radiating part butt are equipped with the arch on the flexible board, the position, the quantity phase-match of bellied position, quantity and louvre, protruding and louvre are pegged graft, are equipped with the winding mechanism who is used for the rolling flexible board on the radiating part, are equipped with humidity transducer and MCU on the fuselage, humidity transducer is located the outer wall of fuselage, and humidity transducer and MCU electricity are connected, MCU is located the cavity, and MCU is used for controlling winding mechanism and carries out the rolling or unreels to the flexible board. This application has good heat dispersion and humidity resistance, and can carry out real-time detection to the temperature of integration rack.

Description

Integrated cabinet

Technical Field

The application relates to the technical field of cabinets, in particular to an integrated cabinet.

Background

The integrated cabinet is mainly used for installing and placing various devices, plays an important role in various civil facilities and public facilities along with the development of science and technology in recent years, and is widely applied to the fields of communication, photoelectricity, electric power and the like. At present, a large part of integrated cabinet needs to be installed outdoors, so that installation and placement space is provided for equipment, and the function of blocking light and rain for the equipment is achieved.

Be provided with the louvre on the integration rack usually for heat that equipment work produced dispels the heat in the rack, nevertheless when being in the great environment of humidity, the condition that wets takes place easily, so, the integration rack is difficult to compromise heat dissipation and dampproofing.

Disclosure of Invention

In order to compromise heat dispersion and humidity resistance, the application provides an integration rack.

The application provides a pair of integration rack adopts following technical scheme:

the utility model provides an integrated cabinet, includes the fuselage, be equipped with the cavity in the fuselage, the lateral wall of fuselage is equipped with the radiating part, be equipped with the louvre on the radiating part, louvre and cavity intercommunication are equipped with the connecting plate on the radiating part, be equipped with the flexbile plate on the connecting plate, flexbile plate and radiating part butt are equipped with the arch on the flexbile plate, the position, the quantity phase-match of bellied position, quantity and louvre, protruding and louvre are pegged graft, are equipped with the winding mechanism who is used for rolling the flexbile plate on the radiating part, are equipped with humidity transducer and MCU on the fuselage, humidity transducer is located the outer wall of fuselage, and humidity transducer and MCU electricity are connected, MCU is located the cavity, and MCU is used for controlling winding mechanism and carries out the rolling or unreels the flexbile plate.

By adopting the technical scheme, the flexible board is unreeled by the reeling mechanism, can be flatly laid on the heat dissipation part, the protrusions are spliced with the heat dissipation holes, and the heat dissipation holes are closed; the winding mechanism winds the flexible plate, the protrusions are separated from the heat dissipation holes, and the heat dissipation holes are opened. Wherein, humidity transducer carries out real-time supervision to the humidity in the environment, and when humidity in the environment was less than predetermined humidity, MCU control winding mechanism, winding mechanism rolled the flexbile plate, and the arch breaks away from the louvre, and the louvre is opened, can improve the heat dispersion of integration rack. When humidity in the environment is greater than predetermined humidity, MCU control winding mechanism, winding mechanism unreels the flexbile plate, and the flexbile plate tiles on the radiating part, and arch and louvre are pegged graft, and the louvre is closed, can improve the humidity resistance of integration rack, and then makes the integration rack can have better heat dispersion and humidity resistance.

Preferably, the winding mechanism comprises a roller, a first guide rail and a driving assembly, one end of the flexible plate is fixedly connected with the connecting plate, the other end of the flexible plate is fixedly connected with the peripheral surface of the roller, the length direction of the first guide rail is perpendicular to the length direction of the connecting plate, one end of the first guide rail extends in the direction far away from the connecting plate, and the end part of the first guide rail is gradually close to the heat dissipation hole; the driving assembly is used for driving the roller to rotate and slide along the first guide rail, and the driving assembly is electrically connected with the MCU.

Through adopting above-mentioned technical scheme, drive assembly drive roller slides and rotates to the direction of keeping away from the connecting plate on first guide rail, at this moment, the roller unreels and extrudes the flexible sheet, when unreeling, arch and louvre on the flexible sheet peg graft one by one, and unreel the in-process, the radius that corresponds on the roller is more and more littleer, and the one end that the connecting plate was kept away from to first guide rail is close to the louvre gradually for the roller can be all the time to heat dissipation part direction extrusion flexible sheet, make the arch can stably peg graft in the louvre. Drive assembly drive roller slides and rotates to the direction that is close to the connecting plate on first guide rail, and at this moment, roller rolling flexible sheet, the rolling in-process, the radius that corresponds on the roller is bigger and bigger, and the louvre is kept away from gradually to the one end that first guide rail is close to the connecting plate for the roller can roll the flexible sheet smoothly, and arch and louvre break away from.

Preferably, the driving assembly comprises a servo motor and a rack, the servo motor is electrically connected with the MCU, the servo motor is in sliding connection with the heat dissipation portion, the roller is provided with a rotating shaft, the rotating shaft and the roller are coaxially arranged, the rotating shaft is connected with an output shaft of the servo motor, the rotating shaft is provided with a gear, the gear is meshed with the rack, and the rack is parallel to the first guide rail.

Through adopting above-mentioned technical scheme, start servo motor, servo motor's output shaft drives the pivot and rotates, and the pivot drives the roller and rotates. When the rotating shaft rotates, the rotating shaft drives the gear to rotate, the gear walks on the rack through the meshing effect of the gear and the rack, the roller is further driven to slide on the first guide rail, and the servo motor correspondingly slides on the heat dissipation part.

Preferably, the heat dissipation part is provided with a second guide rail, the second guide rail and the first guide rail are arranged in parallel, the rack is located between the first guide rail and the second guide rail, the second guide rail is connected with an installation seat in a sliding mode, and the servo motor is fixedly connected with the installation seat.

Through adopting above-mentioned technical scheme, second guide rail and first guide rail are parallel, and mount pad slidable mounting is on the second guide rail, and when the roller slided on first guide rail, servo motor can pass through the mount pad and slide in step on the second guide rail.

Preferably, a sliding block is arranged on the rotating shaft, the rotating shaft is rotatably connected with the sliding block, and the sliding block is slidably connected with the first guide rail.

Through adopting above-mentioned technical scheme, pivot and slider rotate to be connected, and slider and first guide rail sliding connection make the roller can slide and rotate on first guide rail.

Preferably, the humidity sensor further comprises an amplifying circuit, wherein the input end of the amplifying circuit is connected with the humidity sensor, and the output end of the amplifying circuit is connected with the MCU.

By adopting the technical scheme, the amplifying circuit amplifies the signal of the humidity sensor, so that the MCU can process the data transmitted by the humidity sensor conveniently.

Preferably, the amplifying circuit comprises a first resistor R1, a first capacitor C1, an amplifier IC, a second resistor R2, a second capacitor C2 and a third resistor R3, wherein one end of the first resistor R1 is connected with the same-phase end of the humidity sensor and the amplifier IC, the other end of the first resistor R1 is grounded, the first capacitor C1 is connected with the first resistor R1 in parallel, one end of the second resistor R2 is connected with the inverting end of the amplifier IC, one end of the second capacitor C2 and one end of the third resistor R3, the other end of the second capacitor C2 is connected with the other end of the third resistor R3 and the output end of the amplifier IC, and the output end of the amplifier IC is connected with the MCU.

By adopting the technical scheme, the circuit can amplify the signal of the humidity sensor.

Preferably, the temperature sensor is positioned in the cavity and electrically connected with the MCU, and the wireless communication module is electrically connected with the MCU.

Through adopting above-mentioned technical scheme, temperature sensor detects the temperature in the chamber, when the abnormal temperature appears, sends early warning signal to the back platform through wireless communication module, and the staff of being convenient for in time overhauls corresponding equipment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the humidity in the environment is smaller than the preset humidity, the flexible plate is wound by the winding mechanism, and the heat dissipation holes are opened, so that the heat dissipation performance of the integrated cabinet can be improved; when the humidity in the environment is higher than the preset humidity, the flexible plate is unreeled by the reeling mechanism, the flexible plate is flatly laid on the heat dissipation part, and the heat dissipation holes are closed, so that the moisture resistance of the integrated cabinet can be improved, and the integrated cabinet can have better heat dissipation performance and moisture resistance;

2. the amplifying circuit amplifies the signal of the humidity sensor, so that the MCU can conveniently process the data transmitted by the humidity sensor;

3. when abnormal temperature appears, the wireless communication module sends an early warning signal to the background, so that the staff can conveniently and timely overhaul the corresponding equipment.

Drawings

Fig. 1 is a schematic structural diagram of an integrated cabinet in an embodiment of the present application;

FIG. 2 is a schematic view of the interior of a heat sink in an embodiment of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic block diagram of an integrated cabinet according to an embodiment of the present application;

fig. 5 is a circuit schematic diagram of the amplifier circuit.

Description of reference numerals:

1. a body; 11. a heat dissipating section; 12. a heat dissipation area; 13. heat dissipation holes; 14. a humidity sensor; 15. a temperature sensor; 16. a wireless communication module; 17. an amplifying circuit; 2. a connecting plate; 3. a flexible board; 31. a protrusion; 4. a roller; 41. a rotating shaft; 42. a slider; 43. a gear; 5. a first guide rail; 51. a chute; 6. a drive assembly; 61. a servo motor; 62. a rack; 7. a second guide rail; 71. and (7) mounting a seat.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an integrated cabinet, referring to fig. 1 and 2, the integrated cabinet comprises a machine body 1, wherein a cavity is arranged in the machine body 1, and the cavity is used for installing various devices. The lateral wall of fuselage 1 is provided with heat dissipation portion 11, and the top of heat dissipation portion 11 is provided with heat dissipation area 12, and evenly distributed has a plurality of louvres 13 in this heat dissipation area 12, louvre 13 and cavity intercommunication. Through setting up louvre 13, the cavity is put through with external environment, and the heat accessible louvre 13 that the equipment produced in the cavity gives off external environment, and in external environment's cold air accessible louvre 13 carried out the cavity, can accelerate the heat transfer, and then improved the heat dispersion of integration rack.

Referring to fig. 2 and 3, the heat dissipation area 12 is rectangular, the heat dissipation portion 11 is provided with the connecting plate 2, the connecting plate 2 is located in the cavity, the connecting plate 2 is located on one side of the heat dissipation area 12, the connecting plate 2 is provided with the flexible plate 3, and the flexible plate 3 has elasticity. The both ends of connecting plate 2 pass through bolt and heat dissipation portion 11 fixed connection, and the one end of flexible sheet 3 is pegged graft between connecting plate 2 and heat dissipation portion 11, and through screwing up the bolt, connecting plate 2 compresses tightly and fixes flexible sheet 3 on heat dissipation portion 11.

The width of the flexible board 3 is the same as that of the heat dissipation area 12, the length of the flexible board 3 is greater than that of the heat dissipation area 12, the surface of the flexible board 3 in contact with the heat dissipation part 11 is provided with a protrusion 31, and the position and the number of the protrusion 31 are matched with those of the heat dissipation holes 13. When the flexible board 3 is laid on the heat dissipation area 12, the protrusions 31 and the heat dissipation holes 13 are inserted one by one. The flexible board 3 is tiled on the heat dissipation area 12, the bulge 31 is inserted with the heat dissipation hole 13, so that the heat dissipation hole 13 is sealed, the cavity is separated from the external environment, and the moisture resistance of the integrated cabinet can be improved; meanwhile, the protrusion 31 is inserted into the heat dissipation hole 13, so that the flexible board 3 can be tightly attached to the heat dissipation area 12.

Be provided with the winding mechanism who is used for rolling flexible sheet 3 on the heat dissipation portion 11, winding mechanism includes roller 4, first guide rail 5 and drive assembly 6, and first guide rail 5 has two sets ofly, and two sets of first guide rail 5 are located the both sides of the adjacent connecting plate 2 of heat dissipation portion 12 respectively, and the length direction of first guide rail 5 is perpendicular to the length direction of connecting plate 2. The first guide rail 5 is fixedly connected with the heat dissipation part 11, one end of the first guide rail 5 extends towards the direction far away from the connecting plate 2, and the end is gradually close to the heat dissipation hole 13. The roller 4 is positioned between the two groups of first guide rails 5, and the roller 4 and the connecting plate 2 are arranged in parallel. The axis position of the roller 4 is fixed with a rotating shaft 41, and the rotating shaft 41 is rotatably connected with a sliding block 42 through a bearing. The first guide rail 5 is provided with a sliding groove 51, the sliding groove 51 is arranged along the length direction of the first guide rail 5, the sliding block 42 is positioned in the sliding groove 51, and the sliding block 42 is connected with the first guide rail 5 in a sliding manner through the sliding groove 51.

The heat dissipation part 11 is fixed with a second guide rail 7, the second guide rail 7 is arranged in parallel with the first guide rail 5, the second guide rail 7 is provided with a T-shaped groove 71, and the T-shaped groove 71 is arranged in parallel with the sliding groove 51. The second guide rail 7 is provided with a mounting seat 72, and the mounting seat 72 is connected with the second guide rail 7 in a sliding manner through a T-shaped groove 71. In the present embodiment, the driving assembly 6 includes a servo motor 61 and a rack 62, the servo motor 61 is fixed on the mounting seat 72, and an output shaft of the servo motor 61 is fixedly connected with the rotating shaft 41. The rack 62 is arranged in parallel with the first rail 5, and the rack 62 is located between the first rail 5 and the second rail 7. A gear 43 is coaxially fixed on one end of the rotating shaft 41 close to the servo motor 61, and the gear 43 is meshed and connected with the rack 62.

The servo motor 61 rotates forward, the output shaft of the servo motor 61 drives the rotating shaft 41 to rotate, the rotating shaft 41 drives the roller 4 to rotate, and the roller 4 unreels the flexible board 3. Meanwhile, the rotating shaft 41 drives the gear 43 to rotate, the gear 43 runs on the rack 62 through the meshing action of the gear 43 and the rack 62, the roller 4 is further driven to slide on the first guide rail 5 in the direction away from the connecting plate 2, and the servo motor 61 correspondingly slides on the second guide rail 7. Unreel the in-process, the radius that corresponds on the roller 4 is more and more littleer, and the one end that connecting plate 2 was kept away from to first guide rail 5 is close to louvre 13 gradually, and roller 4 can be all the time to 12 directions extrusion flexonics in heat dissipation area 3, makes flexonics 3 and heat dissipation area 12 paste tightly, and arch 31 and louvre 13 are pegged graft one by one.

The servo motor 61 rotates reversely, the output shaft of the servo motor 61 drives the rotating shaft 41 to rotate, the rotating shaft 41 drives the roller 4 to rotate, and the roller 4 winds the flexible plate 3. Meanwhile, the rotating shaft 41 drives the gear 43 to rotate, the gear 43 runs on the rack 62 through the meshing action of the gear 43 and the rack 62, the roller 4 is driven to slide on the first guide rail 5 in the direction close to the connecting plate 2, and the servo motor 61 correspondingly slides on the second guide rail 7. In the rolling process, the radius corresponding to the roller 4 is larger and larger, and the end, close to the connecting plate 2, of the first guide rail 5 is gradually away from the heat dissipation hole 13, so that the roller 4 can smoothly roll the flexible plate 3, and the protrusion 31 and the heat dissipation hole 13 are separated.

Referring to fig. 4 and 5, the body 1 is further provided with a humidity sensor 14, an amplifying circuit 17, a temperature sensor 15, a wireless communication module 16 and an MCU, the humidity sensor 14 is fixed on the outer wall of the body 1, and the amplifying circuit 17, the temperature sensor 15, the wireless communication module 16 and the MCU are located in the chamber. Wherein, the signal output end of the humidity sensor 14 is connected with the input end of the amplifying circuit 17, the output end of the amplifying circuit 17 is connected with the MCU, and the MCU is electrically connected with the servo motor 61. The temperature sensor 15 is electrically connected with the MCU, and the wireless communication module 16 is electrically connected with the MCU.

In this embodiment, the amplifying circuit 17 includes a first resistor R1, a first capacitor C1, an amplifier IC, a second resistor R2, a second capacitor C2, and a third resistor R3, one end of the first resistor R1 is connected to the humidity sensor 14 and the non-inverting terminal of the amplifier IC, the other end of the first resistor R1 is grounded, the first capacitor C1 is connected to the first resistor R1 in parallel, one end of the second resistor R2 is connected to the inverting terminal of the amplifier IC, one end of the second capacitor C2 and one end of the third resistor R3, the other end of the second capacitor C2 is connected to the other end of the third resistor R3 and the output terminal of the amplifier IC, and the output terminal of the amplifier IC is connected to the MCU.

The humidity sensor 14 monitors the humidity in the environment in real time, the humidity sensor 14 sends detection data to the amplifying circuit 17, the amplifying circuit 17 amplifies the detection data, the amplified detection data is sent to the MCU, and the MCU compares the detection data with preset data. When the humidity in the environment is less than the preset humidity, the MCU servo motor 61 is started, the servo motor 61 rotates reversely, and the servo motor 61 stops after the preset number of turns is reached, so that the servo motor 61 drives the roller 4 to roll the flexible plate 3; when the humidity in the environment is less than the preset humidity, the MCU servo motor 61 is started, the servo motor 61 rotates reversely, and the servo motor 61 stops after the preset number of turns is reached, so that the servo motor 61 drives the roller 4 to roll the flexible plate 3; when the humidity in the environment is greater than the preset humidity, the MCU servo motor 61 is started, the servo motor 61 rotates forwards, the servo motor 61 stops after the preset number of turns is reached, and the servo motor 61 drives the roller 4 to unreel the flexible board 3.

The temperature sensor 15 detects the temperature in the chamber and sends the detected temperature data to the MCU. When the temperature in the cavity is higher than the preset temperature, the MCU controls the wireless communication module 16 to send an early warning signal to the background, so that the staff can conveniently and timely overhaul the corresponding equipment.

The implementation principle of an integrated cabinet in the embodiment of the application is as follows: when the humidity in the environment is less than the preset humidity, the MCU servo motor 61 is started, the servo motor 61 rotates reversely, and the servo motor 61 stops after the preset number of turns. In the reverse rotation process of the servo motor 61, the output shaft of the servo motor 61 drives the rotating shaft 41 to rotate, the rotating shaft 41 drives the roller 4 to rotate, and the roller 4 winds the flexible plate 3. Meanwhile, the rotating shaft 41 drives the gear 43 to rotate, the roller 4 can be driven to slide on the first guide rail 5 towards the direction close to the connecting plate 2 through the meshing action of the gear 43 and the rack 62, and the servo motor 61 synchronously moves on the second guide rail 7 towards the direction close to the connecting plate 2. In the winding process, the protrusions 31 and the heat dissipation holes 13 are separated, so that the cavity is communicated with the external environment, heat generated by equipment in the cavity can be dissipated to the external environment through the heat dissipation holes 13, and cold air of the external environment can pass through the heat dissipation holes 13 to be dissipated into the cavity, so that heat transfer can be accelerated, and further the heat dissipation performance of the integrated cabinet can be improved.

When the humidity in the environment is higher than the preset humidity, the MCU servo motor 61 is started, the servo motor 61 rotates forwards, and the servo motor 61 stops after the preset number of turns. In the process of forward rotation of the servo motor 61, the output shaft of the servo motor 61 drives the rotating shaft 41 to rotate, the rotating shaft 41 drives the roller 4 to rotate, and the roller 4 unreels the flexible board 3. Meanwhile, the rotating shaft 41 drives the gear 43 to rotate, the roller 4 can be driven to slide on the first guide rail 5 in the direction away from the connecting plate 2 through the meshing action of the gear 43 and the rack 62, and the servo motor 61 synchronously moves on the second guide rail 7 in the direction away from the connecting plate 2. Unreeling the in-process, roller 4 extrudees flexbile plate 3 to 12 directions in radiating area, makes flexbile plate 3 and radiating area 12 paste tightly, makes

arch

31 and 13 grafting of louvre one by one, and louvre 13 seals, and the cavity separates with external environment, can improve the humidity resistance of integration rack.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An integration rack, includes fuselage (1), its characterized in that: the novel winding machine is characterized in that a cavity is arranged in the machine body (1), a heat dissipation part (11) is arranged on the side wall of the machine body (1), a heat dissipation area (12) is arranged at the top of the heat dissipation part (11), a plurality of heat dissipation holes (13) are uniformly distributed in the heat dissipation area (12), the heat dissipation holes (13) are communicated with the cavity, a connecting plate (2) is arranged on the heat dissipation part (11), a flexible plate (3) is arranged on the connecting plate (2), the flexible plate (3) is abutted to the heat dissipation part (11), protrusions (31) are arranged on the flexible plate (3), the positions and the number of the protrusions (31) are matched with those of the heat dissipation holes (13), the protrusions (31) are spliced with the heat dissipation holes (13), a winding mechanism for winding the flexible plate (3) is arranged on the heat dissipation part (11), a humidity sensor (14) and an MCU are arranged on the machine body (1), the humidity sensor (14) is arranged on the outer wall of the machine body (1), the humidity sensor (14) is electrically connected with the MCU, the MCU is arranged in the cavity, and the MCU is used for controlling the winding mechanism to wind or wind the flexible plate (3); the winding mechanism comprises a roller (4), a first guide rail (5) and a driving assembly (6), one end of the flexible plate (3) is fixedly connected with the connecting plate (2), the other end of the flexible plate (3) is fixedly connected with the peripheral surface of the roller (4), the length direction of the first guide rail (5) is perpendicular to the length direction of the connecting plate (2), one end, far away from the connecting plate (2), of the first guide rail (5) is gradually close to the heat dissipation holes (13), the roller (4) can extrude the flexible plate (3) towards the heat dissipation area (12) all the time, the flexible plate (3) is tightly attached to the heat dissipation area (12), and the bulges (31) and the heat dissipation holes (13) are connected in a one-to-one inserting mode; the driving assembly (6) is used for driving the roller (4) to rotate and slide along the first guide rail (5), and the driving assembly (6) is electrically connected with the MCU; drive assembly (6) include servo motor (61) and rack (62), servo motor (61) and MCU electricity are connected, servo motor (61) and heat dissipation portion (11) sliding connection, be equipped with pivot (41) on roller (4), pivot (41) and roller (4) coaxial line set up, and pivot (41) and the output shaft of servo motor (61) are equipped with gear (43) on pivot (41), gear (43) and rack (62) meshing, rack (62) and first guide rail (5) parallel arrangement.

2. The integrated cabinet of claim 1, wherein: be equipped with second guide rail (7) on heat dissipation portion (11), second guide rail (7) and first guide rail (5) parallel arrangement, rack (62) are located between first guide rail (5) and second guide rail (7), and sliding connection has mount pad (72) on second guide rail (7), servo motor (61) and mount pad (72) fixed connection.

3. The integrated cabinet of claim 1, wherein: be equipped with slider (42) on pivot (41), pivot (41) and slider (42) rotate to be connected, slider (42) and first guide rail (5) sliding connection.

4. The integrated cabinet of claim 1, wherein: the humidity sensor is characterized by further comprising an amplifying circuit (17), wherein the input end of the amplifying circuit (17) is connected with the humidity sensor (14), and the output end of the amplifying circuit (17) is connected with the MCU.

5. The integrated cabinet of claim 4, wherein: amplifying circuit (17) include first resistance R1, first electric capacity C1, amplifier IC, second resistance R2, second electric capacity C2 and third resistance R3, first resistance R1's one end and humidity transducer (14), amplifier IC's homophase end are connected, first resistance R1's the other end ground connection, first electric capacity C1 and first resistance R1 are parallelly connected, second resistance R2's one end and amplifier IC's inverting terminal, second electric capacity C2's one end, third resistance R3's one end are connected, second electric capacity C2's the other end and third resistance R3's the other end, amplifier IC's output are connected, and amplifier IC's output and MCU connect.

6. The integrated cabinet of claim 1, wherein: still include temperature sensor (15) and wireless communication module (16), temperature sensor (15) are located the cavity, temperature sensor (15) and MCU electricity are connected, wireless communication module (16) and MCU electricity are connected.