Controller

Abstract

The present application relates to the field of controllers, and in particular to a controller, which includes a main body, a heat sink, a connecting plate and a fan, wherein one side of the main body is provided with a mounting groove, the other side of the main body is provided with a heat sink, the main body is provided with a connecting port, the connecting port is connected to the mounting groove and the heat sink, the heat sink is fixedly connected to the bottom of the heat sink, the heat sink covers the connecting port, the connecting plate is fixedly connected to one end of the heat sink away from the connecting port, the fan is arranged on the side of the heat sink away from the connecting port, the fan is fixedly connected to the connecting plate, the air inlet of the fan faces the heat sink, and the air outlet of the fan faces the notch of the heat sink. The heat sink has good thermal conductivity, when the temperature of the electronic component is too high, the heat sink heats up, the fan accelerates the air circulation in the heat sink, improves the heat dissipation efficiency of the heat sink, and then dissipates the heat of the electronic component, which is convenient for heat dissipation.

Description

Technical Field

[0001] The present application relates to the field of controllers, and in particular to a controller. Background Art

[0002] A controller is an indispensable electronic device in an automation system. It receives input signals from sensors or other devices and generates corresponding output signals according to preset control strategies or algorithms, thereby achieving precise control of the controlled object. Controllers are widely used in many fields, including industry, transportation, home, etc., and can significantly improve the efficiency and stability of the system, reduce energy waste, and enhance safety and convenience.

[0003] Controller heating is a common problem due to problems such as excessively high ambient temperature or poor heat dissipation, excessive workload of electronic components for a long time, design or manufacturing defects, etc. If the controller heating is not controlled and handled in time, it will lead to equipment performance degradation, circuit failure, safety hazards, shortened equipment life and affect equipment stability.

[0004] However, most of the existing controllers have heat dissipation holes opened on the outer wall of the device to dissipate heat, and the heat dissipation effect is poor. Summary of the invention

[0005] In order to improve heat dissipation efficiency, the present application provides a controller.

[0006] A controller provided in this application adopts the following technical solution:

[0007] A controller comprises a main body, a heat sink, a connecting plate and a fan, wherein one side of the main body is provided with a mounting groove, the other side of the main body is provided with a heat sink, the main body is provided with a connecting port, the connecting port is connected to the mounting groove and the heat sink, the heat sink is fixedly connected to the groove bottom of the heat sink, the heat sink covers the connecting port, the connecting plate is fixedly connected to an end of the heat sink away from the connecting port, the fan is arranged on a side of the heat sink away from the connecting port, the fan is fixedly connected to the connecting plate, the air inlet of the fan faces the heat sink, and the air outlet of the fan faces the slot of the heat sink.

[0008] By adopting the above technical solution, the heat sink has good thermal conductivity. When the temperature of the electronic component is too high, the heat sink heats up, and the fan accelerates the air circulation in the heat sink, thereby improving the heat dissipation efficiency of the heat sink, thereby dissipating the heat of the electronic component and facilitating heat dissipation.

[0009] Preferably, it also includes a heat sink, which is arranged between the heat sink and the fan, and is fixedly connected to the heat sink. There are multiple heat sinks, and the multiple heat sinks are evenly spaced along the vertical direction.

[0010] By adopting the above technical solution, the heat sink increases the heat dissipation area of ​​the heat sink, increases the contact area with the air, and improves the heat dissipation efficiency.

[0011] Preferably, an air inlet is provided on the outer wall of the main body, the air inlet is connected to the heat dissipation slot, and the air inlet is provided between the air outlet of the fan and the bottom of the heat dissipation slot.

[0012] By adopting the above technical solution, the rotation of the fan generates negative pressure, and the outside air enters the heat sink from the air inlet. After the air exchanges heat with the heat sink, it is discharged from the air outlet of the fan, which facilitates the heat dissipation of the heat sink and improves the heat dissipation efficiency.

[0013] Preferably, it also includes a wall hanging plate, which is fixedly connected to the upper end of the main body, and the wall hanging plate is used to connect to the wall. The end of the main body away from the notch of the installation groove is used to fit the wall. The lower end of the main body is provided with an air outlet, and the air outlet is connected to the heat dissipation groove. The air outlet is arranged between the air inlet of the fan and the notch of the heat dissipation groove.

[0014] By adopting the above technical solution, the main body is attached to the wall, the wall covers the notch of the heat dissipation slot, and the fan rotates to discharge air from the air outlet. The air can exchange heat with the passing electronic components, thereby improving the heat dissipation efficiency.

[0015] Preferably, it also includes a retaining ring and a diaphragm, wherein the retaining ring is fixedly connected to the notch of the heat dissipation groove, one side of the retaining ring is used to fit the wall, and the diaphragm is fixedly connected to the other side of the retaining ring, the retaining ring is provided with a through opening, and the diaphragm covers the through opening.

[0016] By adopting the above technical solution, the air is heated up after heat exchange with the heat sink, and the heated gas is likely to produce condensed water when in contact with the wall, which affects the service life of the wall. The diaphragm isolates the condensed water from the wall, thereby extending the service life of the wall and reducing the probability of safety accidents.

[0017] Preferably, it also includes a water receiving box, wherein the air outlet smoothly transitions to the inner wall of the installation groove and the retaining ring, the water receiving box is connected to the inner wall of the installation groove facing the air outlet, and a water receiving groove is provided at the upper end of the water receiving box, and the water receiving groove is used to receive condensed water on the diaphragm.

[0018] By adopting the above technical solution, it is convenient to collect condensed water on the diaphragm and remind the user that the water content in the air is too high.

[0019] Preferably, it also includes a collecting component, which includes a first support block, a second support block, a first mounting block, a second mounting block, a reciprocating screw, a guide rod and a scraper, the first support block, the second support block, the first mounting block and the second mounting block are all fixedly connected to one end of the retaining ring facing the mounting groove, the first support block and the second support block are respectively arranged on both sides of the diaphragm, the first mounting block is arranged directly above the first support block, and the second mounting block is arranged directly above the second support block, the two ends of the reciprocating screw are respectively connected to the first support block and the first mounting block by rotation around their own axes, the two ends of the guide rod are respectively connected to the second support block and the second mounting block by rotation around their own axes, the two ends of the scraper are provided with threaded openings and guide openings, the reciprocating screw is threadedly connected to the inner wall of the threaded opening, the guide rod is slidably connected to the inner wall of the guide opening, and the scraper abuts the diaphragm.

[0020] By adopting the above technical solution, the reciprocating screw rotates to drive the scraper to slide up and down, and the scraper scrapes off the condensed water on the diaphragm, accelerating the collection of the condensed water into the water receiving box, so as to facilitate timely judgment of the water content in the air.

[0021] Preferably, it also includes hygroscopic cotton, a support plate, a spring and a connecting piece, the hygroscopic cotton is slidably connected to the groove wall of the heat dissipation groove, the sliding direction of the hygroscopic cotton is parallel to the groove depth direction of the heat dissipation groove, the hygroscopic cotton is used to cover the air inlet, the water receiving box is slidably connected to the inner wall of the air outlet, the sliding direction of the water receiving box is vertical, the support plate is arranged below the water receiving box, the support plate is fixedly connected to the inner wall of the air outlet, one end of the spring is fixedly connected to the upper end of the support plate, the other end of the spring is fixedly connected to the lower end of the water receiving box, and the water receiving box is connected to the hygroscopic cotton through a connecting piece.

[0022] By adopting the above technical solution, condensed water is collected in the water collecting box, which increases the gravity of the water collecting box, compresses the spring, and slides the water collecting box downward. The desiccant cotton is driven to slide and cover the air inlet through the connecting piece. The desiccant cotton absorbs moisture from the gas entering the heat sink, thereby reducing the generation of condensed water, protecting the controller, and extending the service life of the controller.

[0023] Preferably, the connecting member includes a first rack, a gear, a second rack and a connecting bar, the first rack is fixedly connected to the upper end of the water receiving box, one end of the connecting bar is fixedly connected to the moisture-absorbing cotton, the other end of the connecting bar is fixedly connected to the second rack, the gear rotates around its own axis and is connected to the groove wall of the heat dissipation groove, the gear is arranged above the second rack, the gear is arranged on the side of the first rack away from the diaphragm, and the first rack and the second rack are both meshed with the gear.

[0024] By adopting the above technical solution, after the water receiving box receives water, the gravity in the water receiving box increases, the spring is compressed, the water receiving box moves downward, the first rack moves, the gear rotates, and the second rack moves, so that the desiccant cotton moves to cover the air inlet. When the water vapor content of the outside air is high, the desiccant cotton absorbs moisture from the gas, reducing the impact on electronic components and extending the service life of the controller.

[0025] Preferably, it also includes a fixed block and absorbent cotton, wherein the fixed block is arranged above the water receiving box, the fixed block is fixedly connected to the inner wall of the air outlet, the upper end of the absorbent cotton is fixedly connected to the lower end of the fixed block, and the lower end of the absorbent cotton abuts against the bottom of the water receiving tank.

[0026] By adopting the above technical solution, the absorbent cotton absorbs water and stretches. After condensed water is generated, the absorbent cotton can respond quickly and push the water receiving box to move downward, so that when the air humidity is high, the absorbent cotton covers the air inlet.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] The heat conduction performance of the heat sink is good. When the temperature of the electronic components is too high, the heat sink heats up, and the fan accelerates the air circulation in the heat sink, thereby improving the heat dissipation efficiency of the heat sink, and then dissipating the heat of the electronic components, making heat dissipation easier;

[0029] The air heats up after heat exchange with the heat sink. The heated gas easily generates condensed water when it contacts the wall, which affects the service life of the wall. The diaphragm isolates the condensed water from the wall, prolongs the service life of the wall, and reduces the probability of safety accidents.

[0030] The condensed water gathers in the water collecting box, which increases the gravity of the water collecting box, compresses the spring, and slides the water collecting box downward, driving the moisture-absorbing cotton to slide and cover the air inlet through the connecting piece. The moisture-absorbing cotton absorbs moisture from the gas entering the heat sink, reducing the generation of condensed water, protecting the controller, and extending the service life of the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the controller.

[0032] Figure 2 This is a schematic diagram of the internal structure of the controller after it is cut open.

[0033] Figure 3 It is a schematic diagram of the internal structure of the controller after it is cut open, mainly showing the protection components, collection components and control components.

[0034] Figure 4 is a cross-sectional view of the controller.

[0035] Description of reference numerals: 1. main body; 11. mounting slot; 12. heat dissipation slot; 121. dovetail slot; 13. connection port; 14. through-port; 15. air inlet; 16. air outlet; 2. heat dissipation assembly; 21. heat dissipation plate; 22. connection plate; 23. fan; 24. heat sink; 3. electronic component; 4. wall hanging plate; 5. protection assembly; 51. retaining ring; 511. through-port; 52. diaphragm; 53. water collecting box; 531. water collecting tank; 532. water leakage port; 54. support plate; 55. spring; 6. collection assembly; 61. First support block; 62. Second support block; 63. First mounting block; 64. Second mounting block; 65. Reciprocating screw; 66. Guide rod; 67. Scraper; 671. Threaded port; 672. Guide port; 68. Drive motor; 7. Control assembly; 71. Moisture-absorbing cotton; 711. Dovetail block; 72. Connector; 721. First rack; 722. Gear; 723. Second rack; 724. Connecting strip; 73. Fixed block; 74. Water-absorbing cotton; 75. Mounting plate; 76. Connecting column; 77. Connecting cone. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application embodiment discloses a controller. Figure 1 and Figure 2 The controller includes a main body 1, a heat dissipation component 2, an electronic component 3, a wall mounting plate 4, a protection component 5, a collection component 6 and a control component 7. The heat dissipation component 2 includes a heat dissipation plate 21, a connecting plate 22, a fan 23 and a heat sink 24.

[0038] Reference Figure 2 The main body 1 has a mounting groove 11 on one side, a heat dissipation groove 12 on the other side, a connection port 13 in communication with the mounting groove 11 and the heat dissipation groove 12, a heat dissipation plate 21 fixedly connected to the groove bottom of the heat dissipation groove 12, and the heat dissipation plate 21 covers the connection port 13. The electronic component 3 is fixedly connected to the groove wall of the mounting groove 11, the main body 1 has a through hole 14, the through hole 14 is arranged below the connection port 13, the through hole 14 is in communication with the mounting groove 11 and the heat dissipation groove 12, and the lower end of the electronic component 3 extends out of the through hole 14.

[0039] The connecting plate 22 is fixedly connected to the end of the heat sink 21 away from the connecting port 13. There are two connecting plates 22, and the two connecting plates 22 are respectively close to the upper and lower ends of the heat sink 21. The fan 23 is arranged on the side of the heat sink 21 away from the connecting port 13, and the four corners of the fan 23 are fixedly connected to the connecting plate 22 by bolts. The heat sink 24 is arranged between the heat sink 21 and the fan 23, and the heat sink 24 is arranged between the two connecting plates 22. The heat sink 24 is fixedly connected to the heat sink 21. There are multiple heat sinks 24, and the multiple heat sinks 24 are evenly spaced along the vertical direction. The air inlet of the fan 23 faces the heat sink 21, and the air outlet of the fan 23 faces the notch of the heat sink 12.

[0040] Reference Figure 1 and Figure 2 The outer wall of the main body 1 is provided with an air inlet 15, which is connected to the heat dissipation slot 12. The air inlet 15 is arranged between the air outlet of the fan 23 and the bottom of the heat dissipation slot 12, and the air inlet 15 is directly opposite to the heat sink 24. The wall hanging plate 4 is fixedly connected to the upper end of the main body 1, and the wall hanging plate 4 is used to be fixedly connected to the wall so that the controller is hung on the wall. The end of the main body 1 away from the notch of the installation slot 11 is used to fit the wall, and the wall covers the notch of the heat dissipation slot 12. The lower end of the main body 1 is provided with an air outlet 16, which is connected to the heat dissipation slot 12. The height of the air outlet 16 is less than the height of the electronic component 3. The air outlet 16 is arranged between the air inlet of the fan 23 and the notch of the heat dissipation slot 12.

[0041] Reference Figure 2 The protection assembly 5 includes a retaining ring 51, a diaphragm 52, a water receiving box 53, a support plate 54 and a spring 55. The retaining ring 51 is fixedly connected to the notch of the heat dissipation slot 12. The air outlet 16 faces the inner wall of the installation slot 11 and is coplanar with the retaining ring 51. One side of the retaining ring 51 is used to fit the wall. The diaphragm 52 is fixedly connected to the other side of the retaining ring 51. The retaining ring 51 is provided with a through hole 511, and the diaphragm 52 covers the through hole 511. The water receiving box 53 is slidably connected to the inner wall of the installation slot 11 facing the air outlet 16. Both ends of the water receiving box 53 are slidably connected to the slot wall of the heat dissipation slot 12. The upper end of the water receiving box 53 is provided with a water receiving groove 531, and the water receiving groove 531 is used to receive the condensed water on the diaphragm 52. The support plate 54 is arranged below the water collecting box 53, and the support plate 54 is fixedly connected to the inner wall of the air outlet 16 facing the mounting groove 11. One end of the spring 55 is fixedly connected to the upper end of the support plate 54, and the other end of the spring 55 is fixedly connected to the lower end of the water collecting box 53. Two springs 55 are arranged evenly spaced along the length direction of the support plate 54.

[0042] Reference Figure 2 and Figure 3The collecting assembly 6 includes a first support block 61, a second support block 62, a first mounting block 63, a second mounting block 64, a reciprocating screw rod 65, a guide rod 66, a scraper 67 and a driving motor 68. The first support block 61, the second support block 62, the first mounting block 63 and the second mounting block 64 are all fixedly connected to one end of the retaining ring 51 facing the mounting groove 11. The first support block 61 and the second support block 62 are respectively arranged on both sides of the diaphragm 52. The first mounting block 63 is arranged directly above the first support block 61, and the second mounting block 64 is arranged directly above the second support block 62. The heights of the first mounting block 63 and the second mounting block 64 are both greater than the height of the diaphragm 52.

[0043] The two ends of the reciprocating screw rod 65 are respectively connected to the first support block 61 and the first mounting block 63 by rotating around their own axis, the axis of the reciprocating screw rod 65 is vertical, the two ends of the guide rod 66 are respectively connected to the second support block 62 and the second mounting block 64 by rotating around their own axis, the axis of the guide rod 66 is vertical, the two ends of the scraper 67 are respectively provided with a threaded opening 671 and a guide opening 672, the reciprocating screw rod 65 is threadedly connected to the inner wall of the threaded opening 671, the guide rod 66 is slidably connected to the inner wall of the guide opening 672, and the scraper 67 abuts against the diaphragm 52. The motor housing of the drive motor 68 is fixedly connected to one end of the retaining ring 51 facing the mounting groove 11, and the motor shaft of the drive motor 68 is coaxially fixedly connected to the upper end of the reciprocating screw rod 65. The power supply of the drive motor 68 is electrically connected to the power supply of the fan 23.

[0044] Reference Figure 3 and Figure 4 The control component 7 includes a moisture-absorbing cotton 71, a connecting piece 72, a fixing block 73, a moisture-absorbing cotton 74, a mounting plate 75, a connecting column 76 and a connecting cone 77. The groove wall of the heat dissipation groove 12 is provided with a dovetail groove 121. The length direction of the dovetail groove 121 is parallel to the groove depth direction of the heat dissipation groove 12. A dovetail block 711 is fixedly connected to one side of the moisture-absorbing cotton 71. The dovetail block 711 is slidably embedded in the dovetail groove 121. The moisture-absorbing cotton 71 slides and fits the groove wall of the heat dissipation groove 12. The moisture-absorbing cotton 71 is used to cover the air inlet 15.

[0045] The connecting member 72 includes a first rack 721, a gear 722, a second rack 723 and a connecting bar 724. The first rack 721 is fixedly connected to the upper end of the water receiving box 53. The length direction of the first rack 721 is vertical. One end of the connecting bar 724 is fixedly connected to the lower end of the moisture-absorbing cotton 71. The other end of the connecting bar 724 is fixedly connected to the second rack 723. The length direction of the second rack 723 is parallel to the groove depth of the heat dissipation groove 12. The gear 722 rotates around its own axis and is connected to the groove wall of the heat dissipation groove 12. The rotation axis of the gear 722 is parallel to the length direction of the water receiving box 53. The gear 722 is arranged above the second rack 723. The gear 722 is arranged on the side of the first rack 721 away from the diaphragm 52. The first rack 721 and the second rack 723 are both meshed with the gear 722.

[0046] Reference Figure 2 and Figure 3 The fixing block 73 is arranged above the water receiving box 53, the fixing block 73 is arranged in the middle of the water receiving box 53, the fixing block 73 is fixedly connected to the inner wall of the air outlet 16 facing the installation groove 11, the upper end of the absorbent cotton 74 is fixedly connected to the lower end of the fixing block 73, and the lower end of the absorbent cotton 74 abuts the bottom of the water receiving groove 531. The mounting plate 75 is arranged above the water receiving box 53, the mounting plate 75 is fixedly connected to the inner wall of the air outlet 16 facing the installation groove 11, two mounting plates 75 are provided, and the two mounting plates 75 are arranged on both sides of the fixing block 73, the bottom of the water receiving groove 531 is provided with a water leakage port 532, and the water leakage port 532 vertically penetrates the water receiving box 53, the connecting column 76 is fixedly connected to the lower end of the installing plate 75, the connecting column 76 is slidably connected to the inner wall of the water leakage port 532, and the connecting cone 77 is coaxially fixedly connected to the lower end of the connecting column 76, and the diameter of the connecting cone 77 decreases as it moves away from the connecting column 76.

[0047] The implementation principle of a controller in the embodiment of the present application is as follows: the fan 23 rotates, the air enters the heat sink 12 from the air inlet 15, and after heat exchange with the heat sink 24, it is discharged from the air outlet 16. When the hot air passes through the diaphragm 52, if the air humidity is high, the water vapor contained in the hot air is easily liquefied into small water droplets when it encounters cold on the diaphragm 52. The driving motor 68 drives the reciprocating screw 65 to rotate so that the scraper 67 slides up and down, and the condensed water is collected in the water receiving tank 531. The water receiving box 53 and the gravity of the water and the water-absorbing cotton 74 absorb water and stretch together to push the spring 55 to compress, and the water receiving box 53 slides downward. , the hygroscopic cotton 71 is driven by the connecting piece 72 to slide and cover the air inlet 15, the water leakage port 532 is opened to leak, the hygroscopic cotton 71 blocks the air intake of the air inlet 15, and the water content of the incoming air is reduced. The hot air connects the water stains in the water tank 531 and the hygroscopic cotton 74 to dry. The spring 55 has a tendency to restore its deformation and pushes the water receiving box 53 to move upward to squeeze the hygroscopic cotton 74. The air inlet 15 slowly opens. If the water content of the outside air decreases, the air entering from the water inlet is not easy to generate new condensed water. After the hygroscopic cotton 74 is dried, the water receiving box 53 is reset, and the air intake volume is increased to facilitate heat dissipation.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A controller, characterized in that: The invention comprises a main body (1), a heat sink (21), a connecting plate (22) and a fan (23), wherein one side of the main body (1) is provided with a mounting groove (11), the other side of the main body (1) is provided with a heat sink (12), the main body (1) is provided with a connecting port (13), the connecting port (13) is connected to the mounting groove (11) and the heat sink (12), the heat sink (21) is fixedly connected to the groove bottom of the heat sink (12), the heat sink (21) covers the connecting port (13), the connecting plate (22) is fixedly connected to an end of the heat sink (21) facing away from the connecting port (13), the fan (23) is arranged on a side of the heat sink (21) away from the connecting port (13), the fan (23) is fixedly connected to the connecting plate (22), the air inlet of the fan (23) faces the heat sink (21), and the air outlet of the fan (23) faces the groove of the heat sink (12); An air inlet (15) is provided on the outer wall of the main body (1), the air inlet (15) is connected to the heat dissipation groove (12), and the air inlet (15) is provided between the air outlet of the fan (23) and the bottom of the heat dissipation groove (12); It also includes a wall hanging plate (4), the wall hanging plate (4) is fixedly connected to the upper end of the main body (1), the wall hanging plate (4) is used to connect to the wall, the end of the main body (1) away from the notch of the installation groove (11) is used to fit the wall, and the lower end of the main body (1) is provided with an air outlet (16), the air outlet (16) is connected to the heat dissipation groove (12), and the air outlet (16) is provided between the air inlet of the fan (23) and the notch of the heat dissipation groove (12); It also comprises a retaining ring (51) and a diaphragm (52), the retaining ring (51) being fixedly connected to the notch of the heat dissipation slot (12), one side of the retaining ring (51) being used to fit the wall, the diaphragm (52) being fixedly connected to the other side of the retaining ring (51), the retaining ring (51) being provided with a through opening (511), and the diaphragm (52) covering the through opening (511); It also comprises a water receiving box (53), the inner wall of the air outlet (16) facing the mounting groove (11) and the retaining ring (51) smoothly transitioning, the water receiving box (53) being connected to the inner wall of the air outlet (16) facing the mounting groove (11), the upper end of the water receiving box (53) being provided with a water receiving groove (531), the water receiving groove (531) being used to receive condensed water on the diaphragm (52); The invention also comprises a collecting assembly (6), wherein the collecting assembly (6) comprises a first supporting block (61), a second supporting block (62), a first mounting block (63), a second mounting block (64), a reciprocating screw rod (65), a guide rod (66) and a scraper (67), wherein the first supporting block (61), the second supporting block (62), the first mounting block (63) and the second mounting block (64) are all fixedly connected to one end of the retaining ring (51) facing the mounting groove (11), the first supporting block (61) and the second supporting block (62) are respectively arranged on both sides of the diaphragm (52), the first mounting block (63) is arranged directly above the first supporting block (61), and the second mounting block (64) is fixedly connected to the retaining ring (51) and the second mounting block (64) are fixedly connected to the retaining ring (51) and the second mounting block (62) are respectively arranged on both sides of the diaphragm (52), the first mounting block (63) is arranged directly above the first supporting block (61), and the first mounting block (63) is fixedly connected to the retaining ring (51) and the second mounting block (64) are fixedly connected to the retaining ring (51) and the second mounting block (64) are fixedly connected to the retaining ring (51) and the second mounting block (64) are fixedly connected to the retaining ring (51) and the second mounting block (61) are fixedly connected to the retaining ring (51) and the second mounting block (64 ... The second mounting block (64) is arranged directly above the second support block (62); the two ends of the reciprocating screw rod (65) are respectively connected to the first support block (61) and the first mounting block (63) by being rotatable around their own axes; the two ends of the guide rod (66) are respectively connected to the second support block (62) and the second mounting block (64) by being rotatable around their own axes; the two ends of the scraper (67) are provided with a threaded opening (671) and a guide opening (672); the reciprocating screw rod (65) is threadedly connected to the inner wall of the threaded opening (671); the guide rod (66) is slidably connected to the inner wall of the guide opening (672); and the scraper (67) abuts against the diaphragm (52); The heat dissipation device further comprises a moisture-absorbing cotton (71), a support plate (54), a spring (55) and a connecting piece (72); the moisture-absorbing cotton (71) is slidably connected to the groove wall of the heat dissipation groove (12); the sliding direction of the moisture-absorbing cotton (71) is parallel to the groove depth direction of the heat dissipation groove (12); the moisture-absorbing cotton (71) is used to cover the air inlet (15); the water receiving box (53) is slidably connected to the inner wall of the air outlet (16); the sliding direction of the water receiving box (53) is vertical; the support plate (54) is arranged below the water receiving box (53); the support plate (54) is fixedly connected to the inner wall of the air outlet (16); one end of the spring (55) is fixedly connected to the upper end of the support plate (54); the other end of the spring (55) is fixedly connected to the lower end of the water receiving box (53); the water receiving box (53) is connected to the moisture-absorbing cotton (71) via the connecting piece (72).

2. The controller according to claim 1, characterized in that: It also comprises a heat sink (24), the heat sink (24) being arranged between the heat sink (21) and the fan (23), the heat sink (24) being fixedly connected to the heat sink (21), a plurality of the heat sinks (24) being provided, and the plurality of heat sinks (24) being evenly spaced along the vertical direction.

3. The controller according to claim 1, characterized in that: The connecting member (72) comprises a first rack (721), a gear (722), a second rack (723) and a connecting bar (724); the first rack (721) is fixedly connected to the upper end of the water receiving box (53); one end of the connecting bar (724) is fixedly connected to the moisture-absorbing cotton (71); the other end of the connecting bar (724) is fixedly connected to the second rack (723); the gear (722) is rotatable around its own axis and connected to the groove wall of the heat dissipation groove (12); the gear (722) is arranged above the second rack (723); the gear (722) is arranged on a side of the first rack (721) away from the diaphragm (52); and the first rack (721) and the second rack (723) are both meshed with the gear (722).

4. The controller according to claim 1, characterized in that: It also comprises a fixed block (73) and water-absorbing cotton (74), wherein the fixed block (73) is arranged above the water receiving box (53), the fixed block (73) is fixedly connected to the inner wall of the air outlet (16), the upper end of the water-absorbing cotton (74) is fixedly connected to the lower end of the fixed block (73), and the lower end of the water-absorbing cotton (74) abuts against the bottom of the water receiving tank (531).

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