Control cabinet

Abstract

The invention relates to the technical field of electrical equipment, and discloses a control cabinet which comprises a control cabinet component, an exhaust structure is fixedly assembled on the inner wall of one side of the bottom of the control cabinet component, a cabinet door is rotatably connected to the outer wall of the control cabinet component, and a fan device is fixedly assembled on the outer wall of the top of the side, away from the exhaust structure, of the control cabinet component. An electronic component is fixedly assembled on the inner wall of the control cabinet component. External air is sucked in through the impeller component, is decelerated through the buffer filter material and then enters the inner layer frame, heat of electronic components is effectively absorbed and discharged through the exhaust port, the buffer filter material reduces the airflow speed, high-speed airflow is prevented from impacting the control cabinet body, the inner layer frame or the electronic components, and abnormal sound and mechanical damage of equipment are reduced. The filter plate preliminarily filters sucked air through small filter holes, so that dust and particulate matters entering parts of the control cabinet are reduced, and the interior of the control cabinet is kept clean.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and particularly to a control cabinet. Background Art

[0002] As a core component of industrial automation and electrical equipment, the control cabinet is widely used to accommodate electronic components and provide protection, heat dissipation, and an operating environment.

[0003] Traditional control cabinets usually dissipate heat through natural ventilation or simple fans, but there are the following problems: Insufficient heat dissipation efficiency: Traditional ventilation methods are difficult to effectively reduce the high temperature of electronic components, resulting in overheating of the components, affecting service life and operating stability. Foreign matters such as dust and particles in the external air are easily carried into the control cabinet components by the air flow and accumulate inside the electronic components or the fan device, reducing the heat dissipation efficiency and equipment reliability.

[0004] In view of these problems, there is an urgent need for a control cabinet design that can efficiently dissipate heat, reduce air flow impact, automatically clean foreign matters, and keep the interior clean. Summary of the Invention

[0005] The present invention provides a control cabinet, which solves the problems raised in the above background art.

[0006] The present invention provides the following technical solutions: A control cabinet includes control cabinet components. One side inner wall of the bottom of the control cabinet components is fixedly equipped with an exhaust structure. A cabinet door is rotatably connected to the outer wall of the control cabinet components. The top outer wall of the control cabinet components on the side far from the exhaust structure is fixedly equipped with a fan device. Electronic components are fixedly equipped on the inner wall of the control cabinet components.

[0007] As a preferred technical solution of the present invention: The control cabinet components include a control cabinet main body. An exhaust port is fixedly equipped on the inner wall of the control cabinet main body close to the exhaust structure. A connecting component is fixedly equipped on the outer wall of the control cabinet main body close to the fan device. An air inlet is opened at the control cabinet main body close to the connecting component. An inner layer frame is sleeved on the inner wall of the control cabinet main body. Through holes are opened on the inner wall of the inner layer frame. A buffer filtering material is filled in the space between the inner layer frame and the control cabinet main body.

[0008] As a preferred technical solution of the present invention: A plurality of the buffer filtering materials are located at the relative positions of the through holes. The air inlet is communicated with the inner cavity space of the inner layer frame through the through holes; The connecting component is communicated with the space between the control cabinet main body and the inner layer frame through the air inlet.

[0009] As a preferred technical solution of the present invention: The fan device includes a left part of the fan housing and a right part of the fan housing. Opposite surfaces of the left part of the fan housing and the right part of the fan housing are both provided with air outlets; A partition is fixedly assembled between the left part of the fan housing and the right part of the fan housing. An inner wall of the left part of the fan housing is fixedly assembled with a motor, and an end of an output shaft of the motor is fixedly assembled with an impeller component; An axial hole one is provided at a relative position between the partition and the motor. An axial hole two is provided at a relative position between the right part of the fan housing and the motor; A guide rail component is fixedly assembled on an inner wall of the axial hole two, and a cleaning mechanism is slidably sleeved on an outer edge of the guide rail component.

[0010] As a preferred technical solution of the present invention: The impeller component includes a main impeller and an auxiliary impeller. A filter plate is fixedly assembled between the main impeller and the auxiliary impeller. A plurality of filter holes are provided on an outer wall of the filter plate, and the plurality of filter holes are located within a circle formed by a plurality of blades in the plurality of main impellers; The filter plate and the partition are located in the same plane.

[0011] As a preferred technical solution of the present invention: The guide rail component includes a guide rail main body and a guide rail end. The guide rail end is located on a side close to the air outlet. A meshing groove is provided on an outer wall of the guide rail end, and a sliding groove is provided on outer walls of the guide rail main body and the guide rail end on a side away from the meshing groove.

[0012] As a preferred technical solution of the present invention: The cleaning mechanism includes a sliding component. A notch is provided on an outer wall of the sliding component close to the impeller component. A magnetic member is slidably sleeved on an inner wall of the notch. A telescopic mechanism is embedded in an inner wall of the sliding component. A telescopic end of the telescopic mechanism is connected to the magnetic member. A sliding groove is provided on a side of the sliding component close to the guide rail component. A clockwork mechanism is embedded in the sliding component. An end of the sliding component away from the notch is rotatably connected to a movable plate. Soft connectors are soft-connected to both sides of the movable plate, and ends of the soft connectors are soft-connected to both sides of the sliding component. First magnetic elements and second magnetic elements are respectively embedded on an outer wall of the movable plate; A side of the first magnetic element close to the sliding component is an S pole, a side of the second magnetic element close to the sliding component is an N pole, and a side of the magnetic member close to the movable plate is an S pole.

[0013] As a preferred technical solution of the present invention: The clockwork mechanism includes a strip box wheel provided with tooth grooves on an outer edge, a spiral spring located in a cavity of the strip box wheel, and a strip shaft connected to a central end of the spiral spring; Wherein the strip shaft is fixedly assembled with the sliding component, and the tooth grooves provided on the outer edge of the strip box wheel are adapted to the meshing grooves.

[0014] The present invention has the following beneficial effects: 1. For this control cabinet, the fan device sucks in external air through the impeller component, enters the inner frame after deceleration by the buffer filtering material, effectively absorbs the heat of the electronic components, and discharges it through the exhaust port. The buffer filtering material reduces the air flow speed, avoids the high-speed air flow from impacting the main body of the control cabinet, the inner frame or the electronic components, reduces equipment abnormal noise and mechanical damage, and at the same time avoids the abnormal noise of the inner frame caused by the high-speed gas impacting the inner frame, and the problem that the high-speed gas directly discharges through the exhaust port and applies a unidirectional force to the electronic components, resulting in the displacement of the electronic components. The filter plate preliminarily filters the inhaled air through the filter holes, reduces the dust and particulate matter from entering the control cabinet components, and keeps the inside clean.

[0015] 2. For this control cabinet, through the cleaning mechanism, under the magnetic force action of the magnetic part, the first magnetic element and the second magnetic element, in cooperation with the telescopic mechanism, the movable plate and the flexible connecting piece are automatically unfolded and combined. The air pressure drives the cleaning mechanism to slide along the guide rail component, scraping off the adhered foreign matters on the inner wall of the right part of the fan housing, keeping the diffuser clean. The spring mechanism stores energy through the meshing groove and drives the cleaning mechanism to return to its position, realizing automatic cleaning and reducing the manual maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is an internal structure schematic diagram of the present invention; Figure 3 is a through-hole structure schematic diagram of the present invention; Figure 4 is an air inlet structure schematic diagram of the present invention; Figure 5 is a plane structure schematic diagram of the present invention; Figure 6 is a fan device structure schematic diagram of the present invention; Figure 7 is an air outlet structure schematic diagram of the present invention; Figure 8 is a motor structure schematic diagram of the present invention; Figure 9 is an impeller component structure schematic diagram of the present invention; Figure 10 is a right part structure schematic diagram of the fan housing of the present invention; Figure 11 is a guide rail component structure schematic diagram of the present invention; Figure 12 is a cleaning mechanism structure schematic diagram of the present invention; Figure 13 is a spring mechanism structure schematic diagram of the present invention.

[0017] In the figure: 1. Control cabinet component; 2. Exhaust structure; 3. Fan device; 4. Cabinet door; 5. Electronic components. 101. Control cabinet main body; 102. Exhaust port; 103. Connecting component; 104. Through hole; 105. Intake port; 106. Inner layer frame; 107. Buffer filter material. 301. Left part of the fan housing; 302. Partition; 303. Right part of the fan housing; 304. Air outlet; 305. Impeller component; 306. Motor; 307. Axial hole one; 308. Axial hole two; 309. Guide rail component; 310. Cleaning mechanism. 3051. Main impeller; 3052. Auxiliary impeller; 3053. Filter plate; 3054. Filter small holes. 3091. Guide rail main body; 3092. Guide rail end; 3093. Meshing groove; 3094. Sliding groove. 3101. Sliding assembly; 3102. Notch; 3103. Telescopic mechanism; 3104. Magnetic part; 3105. Sliding groove; 3106. Movable plate; 3107. Soft connecting piece; 3108. First magnetic element; 3109. Second magnetic element; 3110. Spring mechanism. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 13 , a control cabinet, including a control cabinet component 1, an exhaust structure 2 is fixedly assembled on the inner wall of one side of the bottom of the control cabinet component 1, a cabinet door 4 is rotatably connected to the outer wall of the control cabinet component 1, a fan device 3 is fixedly assembled on the top outer wall of the control cabinet component 1 away from the exhaust structure 2, and electronic components 5 are fixedly assembled on the inner wall of the control cabinet component 1.

[0020] In a preferred implementation manner: the control cabinet component 1 includes a control cabinet main body 101, an exhaust port 102 is fixedly assembled on the inner wall of the control cabinet main body 101 close to the exhaust structure 2, a connecting component 103 is fixedly assembled on the outer wall of the control cabinet main body 101 close to the fan device 3, an intake port 105 is opened at the position of the control cabinet main body 101 close to the connecting component 103, an inner layer frame 106 is sleeved on the inner wall of the control cabinet main body 101, through holes 104 are opened on the inner wall of the inner layer frame 106, and a buffer filter material 107 is filled in the space between the inner layer frame 106 and the control cabinet main body 101.

[0021] In a preferred embodiment: a number of buffer filtering materials 107 are located at opposite positions of the through hole 104, and the air inlet 105 is communicated with the inner cavity space of the inner layer frame 106 through the through hole 104; The connecting component 103 is communicated with the space between the control cabinet main body 101 and the inner layer frame 106 through the air inlet 105.

[0022] In the above structure, the top of the connecting component 103 is connected to the air outlet 304 of the fan device 3. By connecting the top of the connecting component 103 to the air outlet 304 of the fan device 3, when the fan device 3 operates, the outside air can be transmitted to the space between the control cabinet main body 101 and the inner layer frame 106 through the fan device 3. After the gas is buffered by the buffer filtering material 107, it can flow, avoiding the problem that the gas with too fast flow rate impacts the structure of the control cabinet component 1, resulting in abnormal noise or damage of the equipment. On the other hand, while reducing the gas flow rate through the buffer filtering material 107, the buffer filtering material 107 can filter foreign matters in the gas, thereby reducing the content of foreign matters or dust in the control cabinet component 1. The gas is buffered by the buffer filtering material 107 and then discharged into the inner cavity of the inner layer frame 106 through the through hole 104, so that the gas neutralizes the heat of the electronic component 5 and is discharged from the exhaust port 102, thereby realizing the cooling of the electronic component 5. When the gas buffered by the buffer filtering material 107 contacts the electronic component 5, it can avoid the problem that the gas with too fast flow rate impacts the structure of the electronic component 5, resulting in damage to the electronic component 5.

[0023] In a preferred embodiment: the fan device 3 includes a left part 301 of the fan housing and a right part 303 of the fan housing. Air outlets 304 are formed on the opposite surfaces of the left part 301 of the fan housing and the right part 303 of the fan housing; A partition 302 is fixedly assembled between the left part 301 of the fan housing and the right part 303 of the fan housing. A motor 306 is fixedly assembled on the inner wall of the left part 301 of the fan housing, and an impeller component 305 is fixedly assembled at the end of the output shaft of the motor 306; An axial hole one 307 is formed at the relative position between the partition 302 and the motor 306, and an axial hole two 308 is formed at the relative position between the right part 303 of the fan housing and the motor 306; A guide rail component 309 is fixedly assembled on the inner wall of the axial hole two 308, and a cleaning mechanism 310 is slidably sleeved on the outer edge of the guide rail component 309.

[0024] In the above structure, the impeller component 305 is driven by the motor 306 to rotate. The axial direction of the impeller component 305 is communicated with the outside through the second axial hole 308 and the first axial hole 307, so that the impeller component 305 in the operating state sucks in gas. The air is affected by the centrifugal force inside the impeller component 305, and the blades of the impeller component 305 do work on the air, enabling the air to obtain kinetic energy and be thrown towards the outer edge of the impeller component 305, with the speed and pressure increasing. At this time, the air enters the diffuser composed of the left part 301 of the fan housing, the partition 302, and the right part 303 of the fan housing. The flow channel gradually expands, the air flow velocity decreases, and part of the kinetic energy is converted into pressure energy to form a relatively high static pressure, so that the high-pressure gas is discharged through the air outlet 304.

[0025] In a preferred embodiment: The impeller component 305 includes a main impeller 3051 and an auxiliary impeller 3052. A filter plate 3053 is fixedly assembled between the main impeller 3051 and the auxiliary impeller 3052. A number of filter holes 3054 are formed on the outer wall of the filter plate 3053, and the number of filter holes 3054 is located within the circle formed by a number of blades in a number of main impellers 3051; The filter plate 3053 and the partition 302 are in the same plane.

[0026] In the above structure, when the impeller component 305 is operating, air is sucked into the center of the impeller component 305. By setting the filter plate 3053, the air is filtered through the filter plate 3053. Due to the rotation of the impeller component 305, foreign objects attached to the surface of the filter plate 3053 are thrown towards the outer edge of the impeller component 305 under the action of centrifugal force. Since the filter plate 3053 and the partition 302 are in the same plane, the space composed of the left part 301 of the fan housing and the right part 303 of the fan housing is isolated by the partition 302. Furthermore, a flattened diffuser is formed between the partition 302 and the right part 303 of the fan housing, and foreign objects thrown outside the impeller component 305 are discharged through the air outlet 304 under the dual action of centrifugal force and high-pressure gas.

[0027] In a preferred embodiment: The guide rail component 309 includes a guide rail main body 3091 and a guide rail end 3092. The guide rail end 3092 is located on the side close to the air outlet 304. A meshing groove 3093 is formed on the outer wall of the guide rail end 3092, and a sliding groove 3094 is formed on the outer walls of the guide rail main body 3091 and the guide rail end 3092 away from the meshing groove 3093.

[0028] In a preferred embodiment: The cleaning mechanism 310 includes a sliding component 3101. A notch 3102 is formed on the outer wall of the sliding component 3101 close to one side of the impeller component 305. A magnetic member 3104 is slidably sleeved on the inner wall of the notch 3102. A telescopic mechanism 3103 is embedded in the inner wall of the sliding component 3101. The telescopic end of the telescopic mechanism 3103 is connected to the magnetic member 3104. A chute 3105 is formed on the sliding component 3101 close to one side of the guide rail component 309. A spring mechanism 3110 is embedded in the sliding component 3101. One end of the sliding component 3101 far from the notch 3102 is rotatably connected to a movable plate 3106. Soft connectors 3107 are flexibly connected to both sides of the movable plate 3106. The ends of the soft connectors 3107 are flexibly connected to both sides of the sliding component 3101. First magnetic elements 3108 and second magnetic elements 3109 are respectively embedded on the outer wall of the movable plate 3106; One side of the first magnetic element 3108 close to the sliding component 3101 is the S pole, one side of the second magnetic element 3109 close to the sliding component 3101 is the N pole, and one side of the magnetic member 3104 close to the movable plate 3106 is the S pole.

[0029] Foreign objects thrown outside the impeller component 305 are separated from the filter plate 3053 under the action of centrifugal force. However, there is a situation where foreign objects adhere to the inner edge of the right part 303 of the fan housing. Therefore, when it is necessary to clean the inner edge of the right part 303 of the fan housing, the telescopic mechanism 3103 is controlled by the controller to push the magnetic member 3104 to correspond to the first magnetic element 3108. By using the magnetic principle of like poles repelling each other between the magnetic member 3104 and the first magnetic element 3108, the first magnetic element 3108 drives the movable plate 3106 and the soft connectors 3107 to expand. When the movable plate 3106 and the soft connectors 3107 are in an expanded state, air is under the action of centrifugal force inside the impeller component 305. The blades of the impeller component 305 do work on the air, enabling the air to obtain kinetic energy and be thrown towards the outer edge of the impeller component 305, increasing the speed and pressure. At this time, the air enters the diffuser formed by the partition plate 302 and the right part 303 of the fan housing and is discharged from the air outlet 304. At the same time, the air exerts pressure on the sliding component 3101, the movable plate 3106, and the soft connectors 3107, thereby driving the cleaning mechanism 310 to move along the guide rail component 309, and further enabling the cleaning mechanism 310 to scrape and clean the foreign objects on the inner edge of the right part 303 of the fan housing.

[0030] In a preferred embodiment: The spring mechanism 3110 includes a barrel wheel with tooth grooves on the outer edge, a spiral spring located in the inner cavity of the barrel wheel, and a barrel shaft connected to the central end of the spiral spring; Wherein the barrel shaft is fixedly assembled with the sliding component 3101, and the tooth grooves arranged on the outer edge of the barrel wheel are adapted to the engagement grooves 3093.

[0031] In the above structure, by providing the sliding groove 3094, when the cleaning mechanism 310 slides in front of the guide rail component 309, the outer edge of the barrel wheel in the mainspring mechanism 3110 will not rub against the outer edge of the guide rail body 3091, thus ensuring the smooth movement of the cleaning mechanism 310 along the guide rail component 309. By providing the engagement groove 3093, air is used to apply pressure to the sliding assembly 3101, the movable plate 3106 and the flexible connecting piece 3107, thereby driving the cleaning mechanism 310 to move along the guide rail component 309. When the cleaning mechanism 310 moves in the engagement groove 3093 section through the engagement of the tooth groove provided on the outer edge of the barrel wheel and the engagement groove 3093, the mainspring is wound. By controlling the telescopic mechanism 3103 with the controller to make the magnetic member 3104 correspond to the second magnetic element 3109, and using the magnetic principle that the magnetic member 3104 and the second magnetic element 3109 attract each other with opposite polarities, the first magnetic element 3108 drives the movable plate 3106 and the flexible connecting piece 3107 to merge, so that the force of air applying pressure to the sliding assembly 3101, the movable plate 3106 and the flexible connecting piece 3107 is less than the energy stored and released by the mainspring and the force of the barrel wheel running, and then the sliding assembly 3101 moves back to its original position along the guide rail component 309.

[0032] Working principle: When the fan device 3 is started, the motor 306 drives the impeller component 305 to rotate at a high speed through its output shaft; air is sucked into the center of the impeller component 305 through the axial hole one 307 and the axial hole two 308; the blades of the main impeller 3051 and the auxiliary impeller 3052 do work on the air, generating a centrifugal force to throw the air towards the outer edge of the impeller, increasing the air speed and pressure; the high-pressure air enters the diffuser space composed of the left part 301 of the fan housing, the partition 302 and the right part 303 of the fan housing. The diffuser flow channel gradually expands, the air flow velocity decreases, and part of the kinetic energy is converted into static pressure energy to form high-pressure gas, which is discharged through the air outlet 304; The high-pressure air enters the space between the control cabinet main body 101 and the inner layer frame 106 from the air outlet 304 through the connecting component 103. The connecting component 103 communicates with this space through the air inlet 105, and the air inlet 105 further communicates with the inner cavity of the inner layer frame 106 through the through hole 104; when the air passes through the buffer filtering material 107, the flow velocity is significantly reduced, avoiding the high-speed air flow directly impacting the control cabinet main body 101 or the inner layer frame 106, thereby reducing equipment abnormal noise or structural damage; The buffer filtering material 107 filters dust and particulate matters in the air simultaneously, reducing the foreign matter content inside the control cabinet component 1 and keeping the interior clean. The air decelerated by the buffer filtering material 107 enters the inner cavity of the inner layer frame 106 through the through hole 104, contacts the electronic components 5, and absorbs the heat generated during their operation. Since the air flow rate has been reduced by the buffer filtering material 107, the contact between the air flow and the electronic components 5 is gentle, avoiding vibration or damage caused by the impact of high-speed air flow. The air carrying heat is discharged through the exhaust port 102 on one side of the bottom of the control cabinet component 1, realizing continuous cooling of the electronic components 5 and keeping the temperature inside the control cabinet stable. When air is inhaled into the center of the impeller, it is preliminarily filtered by the filter plate 3053, and dust or particulate matters adhere to the surface of the filter plate 3053. The impeller component 305 rotates at a high speed, and the foreign matters adhering to the filter plate 3053 are thrown towards the outer edge of the impeller under the action of centrifugal force. The partition plate 302 and the right part 303 of the fan housing are in the same plane, forming a flattened diffuser structure. The foreign matters thrown out are discharged through the air outlet 304 under the dual action of centrifugal force and high-pressure gas, avoiding the accumulation of foreign matters inside the impeller component 305 or the right part 303 of the fan housing.

[0033] The controller drives the telescopic mechanism 3103 to push the magnetic member 3104. The S pole is opposite to the S pole of the first magnetic element 3108. Using the magnetic principle of like poles repelling each other, the movable plate 3106 and the flexible connecting member 3107 are unfolded. High-pressure air exerts pressure on the sliding assembly 3101, the movable plate 3106, and the flexible connecting member 3107, driving the cleaning mechanism 310 to slide along the sliding groove 3094 of the guide rail component 309. The sliding groove 3094 reduces friction and ensures smooth sliding. When the cleaning mechanism 310 slides, it scrapes off the adhered foreign matters on the inner wall of the right part 303 of the fan housing, keeping the inside of the diffuser clean.

[0034] The end part 3092 of the guide rail is provided with an engagement groove 3093, which engages with the tooth groove of the barrel wheel of the spring mechanism 3110 inside the sliding assembly 3101. When the air pressure drives the cleaning mechanism 310 to slide, the barrel wheel rotates to store energy by winding the spring. After the cleaning is completed, the controller drives the telescopic mechanism 3103 to make the S pole of the magnetic member 3104 opposite to the N pole of the second magnetic element 3109. Using the magnetic principle of opposite poles attracting each other, the movable plate 3106 and the flexible connecting member 3107 are combined to restore the compact state. After combination, the pressure of the air on the sliding assembly 3101, the movable plate 3106, and the flexible connecting member 3107 decreases and is lower than the energy stored in the spring mechanism 3110. The spring releases energy to drive the barrel wheel to rotate, and drives the sliding assembly 3101 to return to the initial position along the guide rail component 309 through the engagement groove 3093.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A control cabinet, comprising a control cabinet component (1), characterized in that: On one side of the inner wall at the bottom of the control cabinet component (1), an exhaust structure (2) is fixedly assembled. A cabinet door (4) is rotatably connected to the outer wall of the control cabinet component (1). On the top outer wall of the control cabinet component (1) away from the exhaust structure (2), a fan device (3) is fixedly assembled. Electronic components (5) are fixedly assembled on the inner wall of the control cabinet component (1).

2. The control cabinet according to claim 1, characterized in that: The control cabinet component (1) includes a control cabinet main body (101). An exhaust port (102) is fixedly assembled on the inner wall of the control cabinet main body (101) close to the exhaust structure (2). A connecting component (103) is fixedly assembled on the outer wall of the control cabinet main body (101) close to the fan device (3). An air inlet (105) is opened at the position of the control cabinet main body (101) close to the connecting component (103). An inner layer frame (106) is sleeved on the inner wall of the control cabinet main body (101). A through hole (104) is opened on the inner wall of the inner layer frame (106). A buffer filtering material (107) is filled in the space between the inner layer frame (106) and the control cabinet main body (101).

3. A control cabinet according to claim 2, characterized in that: A number of the buffer filtering materials (107) are located at the relative positions of the through holes (104). The air inlet (105) is communicated with the inner cavity space of the inner layer frame (106) through the through hole (104). The connecting component (103) is communicated with the space between the control cabinet main body (101) and the inner layer frame (106) through the air inlet (105).

4. A control cabinet according to claim 1, characterized in that: The fan device (3) includes a left part of the fan housing (301) and a right part of the fan housing (303). Air outlet openings (304) are opened on the opposite surfaces of the left part of the fan housing (301) and the right part of the fan housing (303). A partition plate (302) is fixedly assembled between the left part of the fan housing (301) and the right part of the fan housing (303). A motor (306) is fixedly assembled on the inner wall of the left part of the fan housing (301). An impeller component (305) is fixedly assembled at the end of the output shaft of the motor (306). An axial hole one (307) is opened at the relative position of the partition plate (302) and the motor (306). An axial hole two (308) is opened at the relative position of the right part of the fan housing (303) and the motor (306). A guide rail component (309) is fixedly assembled on the inner wall of the axial hole two (308). A cleaning mechanism (310) is slidably sleeved on the outer edge of the guide rail component (309).

5. A control cabinet according to claim 4, characterized in that: The impeller component (305) includes a main impeller (3051) and an auxiliary impeller (3052). A filter plate (3053) is fixedly assembled between the main impeller (3051) and the auxiliary impeller (3052). A number of filter holes (3054) are opened on the outer wall of the filter plate (3053). A number of the filter holes (3054) are located within the circle formed by a number of blades in a number of the main impellers (3051). The filter plate (3053) and the partition plate (302) are in the same plane.

6. The control cabinet according to claim 4, characterized in that: The guide rail component (309) includes a guide rail main body (3091) and a guide rail end (3092). The guide rail end (3092) is located on the side close to the air outlet (304). A meshing groove (3093) is formed in the outer wall of the guide rail end (3092). A sliding groove (3094) is formed in the outer walls of the guide rail main body (3091) and the guide rail end (3092) on the side away from the meshing groove (3093).

7. A control cabinet according to claim 4, characterized in that: The cleaning mechanism (310) includes a sliding component (3101). A notch (3102) is formed in the outer wall of the sliding component (3101) on the side close to the impeller component (305). A magnetic member (3104) is slidably sleeved on the inner wall of the notch (3102). A telescopic mechanism (3103) is embedded in the inner wall of the sliding component (3101). The telescopic end of the telescopic mechanism (3103) is connected to the magnetic member (3104). A sliding groove (3105) is formed in the sliding component (3101) on the side close to the guide rail component (309). A winding spring mechanism (3110) is embedded in the sliding component (3101). One end of the sliding component (3101) away from the notch (3102) is rotatably connected to a movable plate (3106). Flexible connectors (3107) are flexibly connected to both sides of the movable plate (3106). The ends of the flexible connectors (3107) are flexibly connected to both sides of the sliding component (3101). First magnetic elements (3108) and second magnetic elements (3109) are respectively embedded in the outer wall of the movable plate (3106); The side of the first magnetic element (3108) close to the sliding component (3101) is the S pole, the side of the second magnetic element (3109) close to the sliding component (3101) is the N pole, and the side of the magnetic member (3104) close to the movable plate (3106) is the S pole.

8. A control cabinet according to claim 7, characterized in that: The winding spring mechanism (3110) includes a barrel wheel with tooth grooves arranged on the outer edge, a spiral winding spring located in the inner cavity of the barrel wheel, and a barrel shaft connected to the central end of the spiral winding spring; Among them, the barrel shaft is fixedly assembled with the sliding component (3101), and the tooth grooves arranged on the outer edge of the barrel wheel are adapted to the meshing groove (3093).

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