Computer equipment box convenient to dissipate heat and move

Abstract

The invention discloses a computer equipment box convenient to dissipate heat and move, and relates to the technical field of computer equipment boxes, the computer equipment box comprises a case frame, a cooling box is fixedly mounted at the top of the case frame, an air guide assembly is arranged on the inner wall of the case frame, and a router is placed in the cooling box. The computer equipment box convenient to dissipate heat and move is convenient to move, disassemble, assemble and maintain, a relatively closed space is formed through the rubber strips and the case, the case is divided into three relatively independent temperature control areas through the three wind scoopers, comprehensive cooling of the case is further facilitated, and the heat dissipation efficiency of the computer equipment box is improved. The lower end of the wind scooper is communicated with the ventilation slot, so that the temperature of a temperature control area in the wind scooper is detected, meanwhile, the silicon controlled rectifier power regulator automatically reduces the power and the voltage of the transformer, so that the refrigeration effect of the semiconductor refrigeration sheet is reduced, the energy consumption is reduced, and the heat dissipation range of the host is controlled by matching with the unfolding size of the wind scooper; and cooling of the router can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of computer equipment boxes, and in particular to a computer equipment box which is convenient for heat dissipation and movement. Background Art

[0002] A computer is a modern electronic computing machine used for high-speed computing. It can perform numerical calculations, logical calculations, and has storage and memory functions. It is a modern intelligent electronic device that can run according to programs and automatically and quickly process massive amounts of data. It is composed of a hardware system and a software system. A computer without any software installed is called a bare metal machine. With the development of science and technology, the use of computers has gradually become popular and is used in all walks of life. It has become an essential office equipment.

[0003] Computer equipment box is also called chassis. The plastic of the front panel of a good chassis is made of ABS engineering plastic, which is strong and stable. However, the existing equipment box generally has multiple sets of heat dissipation holes on the surface of the chassis, and a cooling fan is installed in the chassis. An air outlet larger than the diameter of the heat dissipation hole is opened at the corresponding position of the cooling fan. The cooling fan transmits the hot air inside the chassis to the outside of the chassis, thereby achieving heat dissipation in the chassis. However, the heat dissipation of this computer equipment box is limited, which can easily lead to a continuous increase in the temperature inside the chassis and greatly reduce the operating efficiency of the computer, which brings certain adverse effects to people's use process. In order to solve the shortcomings of the existing technology, we propose a computer equipment box that is easy to move for heat dissipation. Summary of the invention

[0004] The main purpose of the present invention is to provide a computer equipment box that is easy to move for heat dissipation, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A computer equipment box that is easy to move for heat dissipation comprises a chassis frame, a cooling box is fixedly installed on the top of the chassis frame, an air guide assembly is arranged on the inner wall of the chassis frame, and a router is placed inside the cooling box;

[0007] The chassis frame includes a box body, sliding grooves are provided at both ends on both sides of the upper end of the box body, sliding rails are fixedly installed at both ends on both sides of the upper end of the box body, and the sliding rails are located on the sides of the sliding grooves, top guide rods are fixedly installed on both sides inside the upper end of the box body, and the top guide rods are located on the sides of the sliding grooves, sliding guide rods are fixedly installed on both sides of the lower end of the box body, and bottom guide rods are fixedly installed on both sides of the lower end of the box body, and the bottom guide rods are located between the two sliding guide rods, and a support plate is movably sleeved on the outer surface of the bottom guide rod, a pulling side plate is fixedly installed on the left side of the support plate, and rollers are provided at both ends of the bottom of the pulling side plate, the support plate is slidably installed on the bottom of the box body, and ventilation grooves are provided at both ends of the bottom of the box body.

[0008] Preferably, the air guide assembly includes two sliding connecting frames, both sides of the upper and lower ends of the sliding connecting frames are provided with socket holes, both sides of the upper end of the sliding connecting frames are threaded with locking bolts, an air guide cover is fixedly connected between the two sliding connecting frames and between the sliding connecting frames and the inner walls at both ends of the box body, a shunt pipe is fixedly connected to the top of the air guide cover, an electromagnetic valve is arranged inside the shunt pipe, the lower end of the air guide cover is connected to the ventilation slot, and a temperature sensor is arranged at the lower end of the air guide cover.

[0009] Preferably, the air guide cover is a foldable rubber sleeve, the sleeve holes on both sides of the upper end of the sliding connecting frame are movably sleeved on the outer surface of the top guide rod, the sleeve holes on both sides of the lower end of the sliding connecting frame are movably sleeved on the outer surface of the sliding guide rod, the inner walls at both ends of the air guide cover are fixedly installed with rubber strips, the diverter pipe is fixedly sleeved on the top of the box body, the locking bolt is slidably installed inside the sliding groove, and the sliding connecting frame is fixedly installed inside the sliding track through the locking bolt.

[0010] Preferably, the cooling box comprises an air inlet box, a switch plate is hingedly mounted on the top of the left side of the air inlet box, a connecting groove is opened on the left side of the switch plate, and a filter screen is arranged on the left side of the air inlet box.

[0011] Preferably, the air inlet box is fixedly connected to an air duct main duct, and both ends of the left side of the air duct main duct are fixedly installed with fixing frames, the upper end of the fixing frame is movably sleeved with a clamping block, and the bottom of the clamping block is fixedly installed with a limiting rod, the limiting rod is movably sleeved on the lower end of the fixing frame, and the outer surface of one end of the limiting rod is movably sleeved with a pressing spring, and the pressing spring is located between the fixing frame and the limiting rod, and a connecting wire tube is fixedly installed on one side of the inside of the air inlet box, and a wiring port is opened at one end of the connecting wire tube.

[0012] Preferably, a fixing plate is fixedly installed at the right end inside the air inlet box, exhaust fans are fixedly installed on both sides of the upper end of the fixing plate, a refrigeration device is fixedly installed at the right end inside the air inlet box, and the bottom of the main air guide pipe is connected to the diversion pipe.

[0013] Preferably, the refrigeration device comprises a support frame, both ends of which are fixedly mounted with semiconductor refrigeration plates, the semiconductor refrigeration plates are electrically connected to a transformer via a wire, and one side of the transformer is electrically connected to a thyristor power regulator.

[0014] Preferably, the thyristor power regulator and the transformer are fixedly mounted on the top of the air inlet box, the semiconductor refrigeration plate is located on the right side of the exhaust fan, an arc groove is opened on the right side of the fixed plate, and the bottom of the arc groove is connected to the main air duct.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention, by providing rollers and a support plate, can directly place the existing chassis on the top of the support plate during assembly and disassembly, push and pull the side plate, so that the support plate and the chassis on the top thereof can be moved into the interior of the box body, or can be directly pulled out, which is convenient for movement, assembly and disassembly and maintenance.

[0017] 2. The present invention utilizes the lower end of the air guide hood to be connected with the ventilation slot, thereby detecting the temperature of the temperature control area inside the air guide hood. When the temperature is too low, the corresponding solenoid valve can be controlled to close through an electrical signal, thereby preventing the corresponding air guide hood from being cooled. At the same time, the thyristor power regulator automatically reduces the power and the voltage of the transformer, thereby reducing the cooling effect of the semiconductor refrigeration plate, saving energy, and controlling the range of heat dissipation to the host in accordance with the size of the air guide hood.

[0018] 3. The present invention utilizes an air guide cover and rubber strips on the inner walls at both ends of the air guide cover, so that when the chassis is sleeved inside the air guide cover, a relatively closed space is formed with the chassis through the rubber strips, and the chassis is divided into three relatively independent temperature control zones through three air guide covers, thereby facilitating comprehensive cooling of the chassis.

[0019] 4. In the present invention, air is filtered through a filter screen by a refrigeration device, and is cooled by an exhaust fan through the interior of the refrigeration device, so that the cooled air enters the interior of the air guide main pipe, is discharged between the air guide cover and the existing host through a diverter pipe, and exchanges heat with the host to improve the heat dissipation effect of the host.

[0020] 5. The present invention is provided with a fixing frame and a clamping block, so that a bracket for placing a router can be arranged inside the air inlet box, and the bottom of the router is located on the top of the main air duct, thereby facilitating cooling of the router. The computer equipment is also independently provided with an area for placing the router, and the cooling of the router can be achieved, which is not only more beautiful, but also convenient for cooling the router. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the chassis frame structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the chassis frame of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the air guide assembly of the present invention;

[0025] Figure 5 It is a schematic diagram of the cooling box structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the cooling box of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the refrigeration device of the present invention.

[0028] In the figure: 1, chassis frame; 2, cooling box; 3, air guide assembly; 4, router; 5, refrigeration device; 11, box body; 12, sliding track; 13, sliding slot; 14, support plate; 15, pull side plate; 16, roller; 17, top guide rod; 18, bottom guide rod; 19, sliding guide rod; 110, ventilation slot; 21, air inlet box; 22, switch plate; 23, connecting slot; 24, air guide main pipe; 26, filter screen; 27, fixing frame ; 28. Card block; 29. ​​Limit rod; 210. Press spring; 211. Connecting wire tube; 212. Wiring port; 213. Fixing plate; 214. Exhaust fan; 31. Sliding connecting frame; 32. Socket hole; 33. Locking bolt; 34. Air guide cover; 35. Rubber strip; 36. Shunt pipe; 37. Solenoid valve; 38. Temperature sensor; 51. Support frame; 52. Semiconductor cooling plate; 53. Thyristor power regulator; 54. Transformer. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] Embodiment 1, as Figure 1 - Figure 4 , Figure 6 As shown, a computer equipment box that is easy to move for heat dissipation includes a chassis frame 1, a cooling box 2 is fixedly installed on the top of the chassis frame 1, an air guide component 3 is arranged on the inner wall of the chassis frame 1, and a router 4 is placed inside the cooling box 2;

[0031] The chassis frame 1 includes a box body 11, and sliding grooves 13 are provided at both ends of the upper end of the box body 11. Sliding rails 12 are fixedly installed at both ends of the upper end of the box body 11, and the sliding rails 12 are located on the sides of the sliding grooves 13. Top guide rods 17 are fixedly installed on both sides of the upper end of the box body 11, and the top guide rods 17 are located on the sides of the sliding grooves 13. Sliding guide rods 19 are fixedly installed on both sides of the lower end of the box body 11, and bottom guide rods 18 are fixedly installed on both sides of the lower end of the box body 11. The bottom guide rod 18 is located between the two sliding guide rods 19. The outer surface of the bottom guide rod 18 is movably sleeved with a support plate 14, and a pulling side plate 15 is fixedly installed on the left side of the support plate 14. Rollers 16 are provided at both ends of the bottom of the pulling side plate 15. The support plate 14 is slidably installed at the bottom of the box body 11, and ventilation grooves 110 are provided at both ends of the bottom of the box body 11.

[0032] Rollers 16 and support plates 14 are provided. When disassembling or assembling, the existing chassis can be directly placed on the top of the support plates 14, and the side plates 15 can be pushed and pulled to move the support plates 14 and the chassis on the top thereof into the interior of the box body 11 to complete the assembly, making disassembly or assembling convenient.

[0033] like Figure 4 As shown, the air guide assembly 3 includes two sliding connecting frames 31, and sleeve holes 32 are opened on both sides of the upper and lower ends of the sliding connecting frames 31. Locking bolts 33 are threadedly installed on both sides of the upper ends of the sliding connecting frames 31. An air guide cover 34 is fixedly connected between the two sliding connecting frames 31 and between the sliding connecting frames 31 and the inner walls at both ends of the box body 11. A shunt pipe 36 is fixedly connected to the top of the air guide cover 34, and a solenoid valve 37 is arranged inside the shunt pipe 36. The lower end of the air guide cover 34 is connected to the ventilation slot 110, and a temperature sensor 38 is arranged at the lower end of the air guide cover 34.

[0034] The lower end of the air guide cover 34 is connected to the ventilation slot 110 to detect the temperature of the temperature control area inside the air guide cover 34. When the temperature is too low, the corresponding solenoid valve 37 can be controlled to close through an electrical signal, so that the corresponding air guide cover 34 is not cooled, thereby reducing the cooling range of the host. At the same time, the thyristor power regulator 53 automatically reduces the power, and the voltage of the transformer 54 is reduced, thereby reducing the cooling effect of the semiconductor refrigeration sheet 52, saving energy consumption, and controlling the heat dissipation range of the host in accordance with the size of the air guide cover 34.

[0035] Embodiment 2, as Figure 1 - Figure 4 , Figure 6As shown, a computer equipment box that is easy to move for heat dissipation, the cooling box 2 includes an air inlet box 21, a switch plate 22 is hingedly installed on the top of the left side of the air inlet box 21, a connecting groove 23 is opened on the left side of the switch plate 22, and a filter screen 26 is arranged on the left side of the air inlet box 21.

[0036] Among them, the air guide cover 34 is a folded rubber sleeve, the sleeve holes 32 on both sides of the upper end of the sliding connecting frame 31 are movably sleeved on the outer surface of the top guide rod 17, and the sleeve holes 32 on both sides of the lower end of the sliding connecting frame 31 are movably sleeved on the outer surface of the sliding guide rod 19. The inner walls of both ends of the air guide cover 34 are fixedly installed with rubber strips 35, the shunt pipe 36 is fixedly sleeved on the top of the box body 11, the locking bolt 33 is slidably installed inside the sliding groove 13, and the sliding connecting frame 31 is fixedly installed inside the sliding track 12 through the locking bolt 33.

[0037] By using the air guide cover 34 and the rubber strips 35 on the inner walls at both ends of the air guide cover 34, when the chassis is sleeved inside the air guide cover 34, a relatively closed space is formed with the chassis through the rubber strips 35, and the three air guide covers 34 are used to divide the chassis into three relatively independent temperature control zones, thereby facilitating comprehensive cooling of the chassis.

[0038] By using the folded air guide cover 34 and rotating the locking bolt 33, the sliding connecting frame 31 and the sliding rail 12 are loosened. By pushing the locking bolt 33, the distance between the sliding connecting frames 31 at both ends is adjusted to control the width of the middle air guide cover 34. The width of the three air guide covers 34 can be adjusted, and then the range of the three temperature control zones can be adjusted to improve the temperature control effect.

[0039] Embodiment three, as Figure 1 - Figure 6 As shown, a computer equipment box which is easy to move for heat dissipation, an air inlet box 21 is fixedly connected to an air guide main duct 24, both ends of the left side of the air guide main duct 24 are fixedly installed with fixing frames 27, the upper end of the fixing frame 27 is movably sleeved with a clamping block 28, and the bottom of the clamping block 28 is fixedly installed with a limiting rod 29, the limiting rod 29 is movably sleeved on the lower end of the fixing frame 27, the outer surface of one end of the limiting rod 29 is movably sleeved with a pressing spring 210, the pressing spring 210 is located between the fixing frame 27 and the limiting rod 29, a connecting wire tube 211 is fixedly installed on one side of the inside of the air inlet box 21, and a wiring port 212 is opened at one end of the connecting wire tube 211.

[0040] Among them, a fixing plate 213 is fixedly installed at the right end inside the air inlet box 21, exhaust fans 214 are fixedly installed on both sides of the upper end of the fixing plate 213, a refrigeration device 5 is fixedly installed at the right end inside the air inlet box 21, and the bottom of the air guide main pipe 24 is connected to the diversion pipe 36.

[0041] By setting up the main air guide duct 24, the cold air is guided. At the same time, a fixing frame 27 and a clamping block 28 are set, so that the interior of the air inlet box 21 can be provided with a bracket for placing the router 4, and the bottom of the router 4 is located on the top of the main air guide duct 24, thereby facilitating cooling of the router 4. The computer equipment is also independently provided with an area for placing the router 4, and the cooling of the router 4 can be achieved, which is not only more beautiful, but also convenient for cooling the router 4.

[0042] The connecting groove 23 at the top of the switch board 22 facilitates the switching of the switch board 22 . Meanwhile, the connecting groove 23 is utilized without affecting the direction and signal of the antenna of the router 4 .

[0043] The refrigeration device 5 comprises a support frame 51 , and semiconductor refrigeration sheets 52 are fixedly mounted on both ends of the support frame 51 . The semiconductor refrigeration sheets 52 are electrically connected to a transformer 54 via a wire, and one side of the transformer 54 is electrically connected to a thyristor power regulator 53 .

[0044] Among them, the thyristor power regulator 53 and the transformer 54 are fixedly installed on the top of the air inlet box 21, the semiconductor cooling plate 52 is located on the right side of the exhaust fan 214, and an arc groove is opened on the right side of the fixed plate 213, and the bottom of the arc groove is connected to the air guide main duct 24.

[0045] It should be noted that the present invention is a computer equipment box that is easy to move for heat dissipation. When in use, the existing chassis is directly placed on the top of the support plate 14, and the side plate 15 is pushed and pulled to move the support plate 14 and the chassis on the top thereof into the interior of the box body 11. The air guide cover 34 and the rubber strips 35 on the inner walls at both ends of the air guide cover 34 are used to make the chassis sleeved inside the air guide cover 34. Through the rubber strips 35, a relatively closed space is formed with the chassis, and the three air guide covers 34 are used to divide the chassis into three relatively independent temperature control zones, thereby facilitating comprehensive cooling of the chassis.

[0046] Subsequently, the connection line between the exhaust fan 214 and the refrigeration device 5 is plugged into the existing host to supply power, so that the exhaust fan 214 and the semiconductor refrigeration sheet 52 are working. At this time, the air is filtered through the filter screen 26, passes through the exhaust fan 214, passes through the inside of the refrigeration device 5, and is cooled, so that the cooled air enters the inside of the air guide main pipe 24, and is discharged between the air guide cover 34 and the existing host through the shunt pipe 36, and heat is exchanged with the host, and the generated hot air is discharged through the air guide cover 34 and the ventilation slots 110 at the bottom of the box body 11;

[0047] The temperature sensor 38 at the bottom of the air guide cover 34 senses and detects the temperature of the temperature control area inside the current air guide cover 34. When the temperature is too low, the temperature sensor 38 controls the corresponding solenoid valve 37 to close through an electrical signal, so that the corresponding air guide cover 34 does not cool down. At the same time, the thyristor power regulator 53 automatically reduces the power, and the voltage of the transformer 54 is reduced, thereby reducing the cooling effect of the semiconductor refrigeration sheet 52 and saving energy.

[0048] In addition, the switch plate 22 can be opened through the connecting groove 23, and the router 4 can be placed between the clamping block 28 and the fixing frame 27. The limit rod 29 is pulled by the clamping block 28 to compress the pressing spring 210. Through the reaction force of the pressing spring 210, the clamping block 28 clamps the router 4 inside the fixing frame 27 to complete the fixation of the router 4. The air flow entering the exhaust fan 214 will accelerate the air flow around the router 4, thereby achieving heat dissipation of the router 4.

[0049] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A computer equipment case that is easy to move for heat dissipation, comprising a case frame (1), characterized in that: A cooling box (2) is fixedly mounted on the top of the chassis frame (1), an air guide assembly (3) is provided on the inner wall of the chassis frame (1), and a router (4) is placed inside the cooling box (2); The chassis frame (1) comprises a box body (11), both ends of the upper end of the box body (11) are provided with sliding grooves (13), both ends of the upper end of the box body (11) are fixedly installed with sliding rails (12), the sliding rails (12) are located on the side of the sliding groove (13), both sides of the upper end of the box body (11) are fixedly installed with top guide rods (17), the top guide rods (17) are located on the side of the sliding groove (13), and both sides of the lower end of the box body (11) are fixedly installed with sliding guide rods (19). Bottom guide rods (18) are fixedly installed on both sides of the lower end of the box body (11), and the bottom guide rod (18) is located between two sliding guide rods (19). A support plate (14) is movably sleeved on the outer surface of the bottom guide rod (18). A pulling side plate (15) is fixedly installed on the left side of the support plate (14), and rollers (16) are provided at both ends of the bottom of the pulling side plate (15). The support plate (14) is slidably installed on the bottom of the box body (11), and ventilation grooves (110) are provided at both ends of the bottom of the box body (11).

2. A computer equipment box that is easy to move for heat dissipation according to claim 1, characterized in that: The air guide assembly (3) comprises two sliding connection frames (31), both sides of the upper and lower ends of the sliding connection frames (31) are provided with sleeve holes (32), both sides of the upper ends of the sliding connection frames (31) are threadedly installed with locking bolts (33), an air guide cover (34) is fixedly connected between the two sliding connection frames (31) and between the sliding connection frames (31) and the inner walls of the two ends of the box body (11), the top of the air guide cover (34) is fixedly connected with a shunt pipe (36), the inside of the shunt pipe (36) is provided with a solenoid valve (37), the lower end of the air guide cover (34) is connected to the ventilation slot (110), and the lower end of the air guide cover (34) is provided with a temperature sensor (38).

3. A computer equipment box that is easy to move for heat dissipation according to claim 2, characterized in that: The air guide cover (34) is a folded rubber cover. The sleeve holes (32) on both sides of the upper end of the sliding connection frame (31) are movably sleeved on the outer surface of the top guide rod (17). The sleeve holes (32) on both sides of the lower end of the sliding connection frame (31) are movably sleeved on the outer surface of the sliding guide rod (19). The inner walls of both ends of the air guide cover (34) are fixedly installed with rubber strips (35). The shunt pipe (36) is fixedly sleeved on the top of the box body (11). The locking bolt (33) is slidably installed inside the sliding groove (13). The sliding connection frame (31) is fixedly installed inside the sliding track (12) through the locking bolt (33).

4. A computer equipment box that is easy to move for heat dissipation according to claim 3, characterized in that: The cooling box (2) comprises an air inlet box (21), a switch plate (22) is hingedly mounted on the top of the left side of the air inlet box (21), a connecting groove (23) is provided on the left side of the switch plate (22), and a filter screen (26) is provided on the left side of the air inlet box (21).

5. The computer equipment box that is easy to move for heat dissipation according to claim 4, characterized in that: The air inlet box (21) is fixedly connected to an air guide main pipe (24), and both ends of the left side of the air guide main pipe (24) are fixedly installed with a fixing frame (27), the upper end of the fixing frame (27) is movably sleeved with a clamping block (28), and the bottom of the clamping block (28) is fixedly installed with a limiting rod (29), the limiting rod (29) is movably sleeved on the lower end of the fixing frame (27), and the outer surface of one end of the limiting rod (29) is movably sleeved with a pressing spring (210), and the pressing spring (210) is located between the fixing frame (27) and the limiting rod (29). A connecting wire tube (211) is fixedly installed on one side of the air inlet box (21), and a wiring port (212) is provided at one end of the connecting wire tube (211).

6. The computer equipment box that is easy to move for heat dissipation according to claim 5, characterized in that: A fixing plate (213) is fixedly installed at the right end of the air inlet box (21), exhaust fans (214) are fixedly installed on both sides of the upper end of the fixing plate (213), a refrigeration device (5) is fixedly installed at the right end of the air inlet box (21), and the bottom of the main air guide pipe (24) is connected to the diversion pipe (36).

7. The computer equipment box that is easy to move for heat dissipation according to claim 6, characterized in that: The refrigeration device (5) comprises a support frame (51), semiconductor refrigeration plates (52) are fixedly mounted on both ends of the support frame (51), the semiconductor refrigeration plates (52) are electrically connected to a transformer (54) via a wire, and one side of the transformer (54) is electrically connected to a thyristor power regulator (53).

8. The computer equipment box that is easy to move for heat dissipation according to claim 7, characterized in that: The thyristor power regulator (53) and the transformer (54) are fixedly mounted on the top of the air inlet box (21), the semiconductor cooling plate (52) is located on the right side of the exhaust fan (214), and an arc groove is provided on the right side of the fixing plate (213), and the bottom of the arc groove is connected to the main air guide pipe (24).

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