A PLC control cabinet with a classification mechanism and convenient maintenance
By designing a classification mechanism and an adjustable placement plate in the PLC control cabinet, combined with the lift pulley and limit suction cup mechanism, the problem of inconvenient classification and maintenance of internal equipment in the PLC control cabinet is solved, and the stability of the equipment and the improvement of gas flowability is achieved. .
Patent Information
- Application Number
- CN202310867430.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2043-07-15
AI Technical Summary
The existing PLC control cabinet lacks a structure for placing different electrical equipment in a classified manner, and the equipment maintenance is inconvenient in the later stage.
A PLC control cabinet with a classification mechanism and is convenient for maintenance is designed. By setting a first placement plate above the heat dissipation mechanism, two sets of adjustable placement plates are arranged above it, divided into several sets of placement zones, and passed through a lifting pulley The mechanism and limit suction cup mechanism are easy to move and fix, improving maintenance convenience.
It realizes the convenience of classified placement and maintenance of equipment inside the PLC control cabinet, improves the stability of the equipment and gas flow, and solves the problems of insufficient placement stability and heat dissipation effect.
Smart Images

Figure CN116709710B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of PLC control cabinets, in particular to a PLC control cabinet with a classification mechanism and convenient for maintenance. Background Art
[0002] PLC control cabinet refers to a programmable control cabinet, and control cabinet refers to a complete set of control cabinets, which can realize the control of motors and switches. The PLC integrated control cabinet has protection functions such as overload, short circuit, and phase loss protection. It has a compact structure, stable operation, and complete functions. It can be combined according to the actual control scale. It can realize single cabinet automatic control, and it can also realize multiple cabinets through industrial Ethernet or industrial field bus network to form a distributed control system. PLC control cabinets can adapt to various industrial automation control occasions of various sizes, and are widely used in power, metallurgy, chemical industry, papermaking, environmental protection and sewage treatment industries.
[0003] After searching, it was found that in the prior art, such as publication number CN215683112U, there is a PLC control cabinet with good shielding effect, including a PLC control cabinet, a box body and a wire storage trough, the bottom of the PLC control cabinet is fixed with a wire storage trough by bolts, the top of the wire storage trough is embedded with a wire bundle hole, one end of the top of the wire storage trough is fixed with a mounting plate by bolts, one side of the mounting plate is glued with an elastic pad, and the other side of the mounting plate is installed with an exhaust fan through a mounting frame, and the inner surface of the PLC control cabinet is coated with a No. 1 shielding layer, and the inner side of the No. 1 shielding layer is glued with a No. 2 shielding layer. The utility model has good overall protection, can effectively shield the interference of external electromagnetic waves on the electrical equipment in the PLC control cabinet, and effectively classify the wire harness in the PLC control cabinet to avoid confusion and entanglement of the wire harness.
[0004] The above-mentioned PLC control cabinet effectively classifies the wiring harnesses inside the PLC control cabinet to avoid wiring harness confusion, but the above-mentioned PLC control cabinet lacks a structure for classifying and placing different electrical equipment, and it is also inconvenient to maintain the equipment in the later stage. Therefore, a PLC control cabinet with a classification mechanism and easy maintenance is proposed. Summary of the invention
[0005] The purpose of the present invention is to provide a PLC control cabinet with a classification mechanism and easy maintenance, so as to solve the problem proposed in the above background technology that the PLC control cabinet lacks a structure for classifying and placing different electrical equipment, and it is also inconvenient to maintain the equipment in the later stage.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PLC control cabinet with a classification mechanism and convenient maintenance, comprising a PLC control cabinet body, a cabinet door is installed on one side of the PLC control cabinet body, and a plurality of heat dissipation ports are opened on the cabinet door, a display screen and a control mechanism are arranged on the top of the PLC control cabinet body, the PLC control cabinet body is located above the base, the bottom of the base is symmetrically provided with open grooves, and a lifting pulley mechanism is arranged inside the open groove, a mounting groove is arranged at the bottom of the base, and a limited suction cup mechanism is installed inside the mounting groove, a heat dissipation mechanism is installed at the bottom inner side of the PLC control cabinet body, and a first placement plate is arranged above the heat dissipation mechanism, and the first placement plate is slidably connected to the first slide groove symmetrically arranged inside the PLC control cabinet body. The control cabinet is connected to the control cabinet body, and two groups of adjustable placement plates are arranged above the first placement plate, the adjustable placement plate includes a symmetrically arranged second slide groove, and the second placement plate is slidably connected to the inner side of the second slide groove, the second slide groove is connected to the height adjustment mechanism arranged on the inner wall of the PLC control cabinet body, and one end of the height adjustment mechanism is connected to the first motor arranged on the outer side of the PLC control cabinet body, the height adjustment mechanism includes a worm, and one end of the worm is connected to the output end of the first motor, the worm is meshed with the turbine, and the inner side of the turbine is connected to the first transmission rod, a double-groove driving wheel is arranged on the outer side of the first transmission rod, and the double-groove driving wheel is connected to the driven wheels arranged on both sides through a transmission belt, the inner side of the driven wheel is connected to the first threaded rod, and the first threaded rod is connected to the second slide groove through a moving block.
[0007] Preferably, the lifting pulley mechanism includes a second motor, and the output end of the second motor is connected to the first bevel gear arranged inside the base through a second transmission rod, the outer side of the first bevel gear is meshed with the second bevel gear, and the inner side of the second bevel gear is connected to a third transmission rod, the third transmission rod is connected to the first gear, and the first gear is meshed with second gears arranged on both sides, the inner side of the second gear is connected to a second threaded rod, and the second threaded rods are connected through a movable plate, and a universal wheel is installed at the bottom of the movable plate.
[0008] Through the above technical solution: it is easy to move the equipment.
[0009] Preferably, the movable plate is located inside the opening slot, and the movable plate is slidably connected to the inside of the opening slot.
[0010] Through the above technical solution, it is convenient to limit the moving direction of the movable plate.
[0011] Preferably, the limiting suction cup mechanism includes a suction cup, and the suction cup is located inside the mounting groove, one side of the suction cup is connected to an air inlet pipe, and the end of the air inlet pipe passes through the outside of the base, and the other side of the suction cup is connected to an exhaust fan arranged on the top of the base through an exhaust pipe.
[0012] Through the above technical solution: it is convenient to improve the stability of the device when it is placed.
[0013] Preferably, an air plug is installed inside the end of the air inlet pipe, and the air plug is connected to a connecting ring arranged on the top of the base through a connecting line.
[0014] Through the above technical solution, it is convenient to seal one end of the air intake pipe.
[0015] Preferably, a plurality of groups of ventilation holes are provided on the first placement board, and a handle is installed on one side of the first placement board, and the first placement board has the same structure as the second placement board.
[0016] Through the above technical solution: it is convenient to improve gas flow.
[0017] Preferably, the first threaded rod is located inside a vertical slot provided in the PLC control cabinet body, and the moving block is slidably connected to the vertical slot.
[0018] Through the above technical solution, it is convenient to limit the moving direction of the moving block.
[0019] Preferably, a plurality of connection ports are provided on the rear side of the PLC control cabinet body, and an illumination lamp is provided on the top of the PLC control cabinet body.
[0020] Through the above technical solution, it is convenient to illuminate the inside of the PLC control cabinet.
[0021] Preferably, the control mechanism is electrically connected to the second motor, the vacuum fan, the first motor, the lighting lamp, the heat dissipation mechanism and the display screen.
[0022] Through the above technical solution: it is easy to control the equipment.
[0023] Compared with the prior art, the beneficial effects of the present invention are: the PLC control cabinet with a classification mechanism and convenient maintenance,
[0024] (1) The present device is designed to solve the problem of lack of a structure for placing different electrical equipment in a classified manner inside a PLC control cabinet. A first placement plate is provided above the heat dissipation mechanism, and two groups of adjustable placement plates are provided above the first placement plate, thereby dividing the interior of the PLC control cabinet body into a plurality of placement areas. At the same time, the second placement plate in the adjustable placement plate can be moved, thereby adjusting the distance between the placement plates according to the height of different placement equipment.
[0025] (2) In order to solve the problem that it is inconvenient to maintain the equipment of the PLC control cabinet in the later stage, the present device connects the first placement plate with the first slide groove symmetrically arranged inside the PLC control cabinet body through sliding connection, and connects the second placement plate with the second slide groove through sliding connection. When it is necessary to maintain the equipment placed on the first placement plate and the second placement plate, the placement plate can be moved by pulling the placement plate by the handle, so that the equipment placed on the placement plate can be moved to the outside of the PLC control cabinet for easy maintenance. At the same time, open grooves are symmetrically opened at the bottom of the base, and a lifting pulley mechanism is arranged inside the open groove, so that the PLC control cabinet can be moved to the maintenance equipment for maintenance.
[0026] (3) In order to solve the problem of insufficient placement stability of the PLC control cabinet, the device is provided with a mounting groove at the bottom of the base (2), and a limited suction cup mechanism is installed inside the mounting groove. The limited suction cup mechanism can limit the position of the PLC control cabinet to a certain extent, thereby improving its stability during placement.
[0027] (4) In order to solve the problem of poor air flow inside the PLC control cabinet, which leads to weakened heat dissipation effect, the device opens a plurality of groups of air holes on the first placement plate to improve the air flow inside the PLC control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;
[0029] Figure 2 It is a schematic diagram of the overall front view structure of the present invention;
[0030] Figure 3 This is a schematic diagram of the internal structure of the base of the present invention;
[0031] Figure 4 This is a schematic diagram of the enlarged structure of location A of the present invention;
[0032] Figure 5 This is a schematic diagram of the structure of the first placement plate of the present invention;
[0033] Figure 6 This is a schematic diagram of the structure of the adjustable placement plate of the present invention;
[0034] Figure 7 This is a schematic diagram of the enlarged structure of B of the present invention;
[0035] Figure 8 It is a schematic diagram of the height adjustment mechanism structure of the present invention.
[0036] In the figure: 1. PLC control cabinet body; 101. cabinet door; 102. heat dissipation port; 103. display screen; 104. control mechanism; 105. lighting lamp; 2. base; 3. lifting pulley mechanism; 301. second motor; 302. second transmission rod; 303. first bevel gear; 304. second bevel gear; 305. first gear; 306. second gear; 307. second threaded rod; 308. moving plate; 309. universal wheel; 4. mounting slot; 5. limit suction cup mechanism; 501. suction cup; 502. air intake pipe; 503. second ... 3. exhaust pipe; 504. exhaust fan; 6. heat dissipation mechanism; 7. first placement plate; 701. air vent; 702. handle; 8. first slide groove; 9. adjustable placement plate; 901. second slide groove; 902. second placement plate; 903. height adjustment mechanism; 9031. worm; 9032. turbine; 9033. first transmission rod; 9034. double-groove driving wheel; 9035. transmission belt; 9036. driven wheel; 9037. first threaded rod; 9038. moving block; 9039. vertical groove; 904. first motor. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0038] See also Figure 1-8 The present invention provides a technical solution: a PLC control cabinet with a classification mechanism and convenient maintenance, according to Figure 1-4 As shown, it includes a PLC control cabinet body 1.
[0039] Specifically, a cabinet door 101 is installed on one side of the PLC control cabinet body 1 , and a plurality of heat dissipation ports 102 are provided on the cabinet door 101 . A display screen 103 and a control mechanism 104 are provided on the top of the PLC control cabinet body 1 .
[0040] In a further embodiment, the outside of the PLC control cabinet body 1 may be coated with an anti-corrosion layer and a protective layer. The anti-corrosion layer includes a titanium alloy coating, an epoxy resin layer and a polyvinyl chloride coating, which can play a three-layer anti-corrosion protection role, thereby effectively improving the corrosion resistance of the PLC control cabinet body 1 and extending its service life. The protective layer is coated on the outside of the anti-corrosion layer, and the protective layer includes an aluminum oxide coating, a JS waterproof coating and an iron red alkyd anti-rust coating. The iron red alkyd anti-rust coating can improve the overall rust resistance of the PLC control cabinet body 1, and the JS waterproof coating can improve the overall waterproofness of the PLC control cabinet body 1, thereby further improving its anti-rust and anti-corrosion effect. The aluminum oxide coating can provide wear-resistant protection for the PLC control cabinet body 1, thereby extending the service life of the PLC control cabinet body 1.
[0041] Specifically, the PLC control cabinet body 1 is located above the base 2, the base 2 has symmetrical opening grooves at the bottom, and a lifting pulley mechanism 3 is arranged inside the opening grooves, an installation groove 4 is arranged at the bottom of the base 2, and a limited suction cup mechanism 5 is installed inside the installation groove 4.
[0042] Specifically, the lifting pulley mechanism 3 includes a second motor 301, and the output end of the second motor 301 is connected to the first bevel gear 303 arranged inside the base 2 through the second transmission rod 302, the outer side of the first bevel gear 303 is meshed with the second bevel gear 304, and the inner side of the second bevel gear 304 is connected to the third transmission rod, the third transmission rod is connected to the first gear 305, and the first gear 305 is meshed with the second gears 306 arranged on both sides, the inner side of the second gear 306 is connected to the second threaded rod 307, and the second threaded rods 307 are connected by a movable plate 308, and a universal wheel 309 is installed at the bottom of the movable plate 308.
[0043] In yet a further embodiment, the movable plate 308 is located inside the opening slot, and the movable plate 308 is slidably connected to the inside of the opening slot.
[0044] When the PLC control cabinet body 1 needs to be moved, the second motor 301 is turned on, and the second motor 301 drives the first bevel gear 303 to rotate through the second transmission rod 302. Since the first bevel gear 303 is meshed with the second bevel gear 304, the second bevel gear 304 is driven to rotate. The second bevel gear 304 drives the first gear 305 to rotate through the third transmission rod, thereby driving the second gear 306 and the second threaded rod 307 to rotate through the first gear 305. Under the action of the rotation of the second threaded rod 307, the moving plate 308 and the universal wheel 309 move. When the universal wheel 309 moves to the outside of the open groove, the PLC control cabinet body 1 can be pushed to move through the universal wheel 309, which is convenient for the later maintenance of the PLC control cabinet body 1 and the adjustment of its placement position.
[0045] Specifically, the limiting suction cup mechanism 5 includes a suction cup 501, which is made of rubber material and is located inside the mounting groove 4. An air inlet pipe 502 is connected to one side of the suction cup 501, and the end of the air inlet pipe 502 passes through the outside of the base 2. The other side of the suction cup 501 is connected to an exhaust fan 504 arranged on the top of the base 2 through an exhaust pipe 503.
[0046] In a further embodiment, an air plug is installed inside the end of the air inlet pipe 502, and the air plug is connected to a connecting ring arranged on the top of the base 2 through a connecting line.
[0047] When it is necessary to improve the placement stability of the PLC control cabinet body 1, the universal wheel 309 completely enters the open groove, and the vacuum pump 504 is turned on. Under the action of the vacuum pump 504, the gas inside the suction cup 501 is extracted to form a negative pressure inside. The negative pressure makes the base 2 firmly fixed at the placement position, thereby limiting the placement position of the PLC control cabinet body 1 to a certain extent. When the equipment needs to be moved, the air plug is pulled out to allow air to enter the suction cup 501 through the air inlet pipe 502. When the air pressure inside the suction cup 501 returns to normal, the PLC control cabinet body 1 can be driven to move through the lifting pulley mechanism 3.
[0048] according to Figure 1 and Figure 5-8 As shown, a heat dissipation mechanism 6 is installed at the bottom inner side of the PLC control cabinet body 1, and a first placement plate 7 is arranged above the heat dissipation mechanism 6. The first placement plate 7 is slidably connected to a first slide groove 8 symmetrically arranged inside the PLC control cabinet body 1, and two groups of adjustable placement plates 9 are arranged above the first placement plate 7.
[0049] Specifically, the adjustable placement plate 9 includes a second chute 901 symmetrically arranged, and a second placement plate 902 is slidably connected to the inner side of the second chute 901, the second chute 901 is connected to a height adjustment mechanism 903 arranged on the inner wall of the PLC control cabinet body 1, and one end of the height adjustment mechanism 903 is connected to a first motor 904 arranged on the outer side of the PLC control cabinet body 1, and the height adjustment mechanism 903 includes a worm 9031, and one end of the worm 9031 is connected to the first motor 904. The output ends are connected, the worm 9031 is meshed with the turbine 9032, and the inner side of the turbine 9032 is connected to the first transmission rod 9033, the outer side of the first transmission rod 9033 is provided with a double-groove driving wheel 9034, and the double-groove driving wheel 9034 is connected to the driven wheels 9036 arranged on both sides through a transmission belt 9035, the inner side of the driven wheel 9036 is connected to the first threaded rod 9037, and the first threaded rod 9037 is connected to the second slide groove 901 through a moving block 9038.
[0050] Specifically, a plurality of groups of air holes 701 are provided on the first placement plate 7, and a handle 702 is installed on one side of the first placement plate 7. The first placement plate 7 has the same structure as the second placement plate 902, and the air holes 701 are provided to facilitate the subsequent gas flow.
[0051] In a further embodiment, the first threaded rod 9037 is located inside a vertical slot 9039 provided in the PLC control cabinet body 1, and the moving block 9038 is slidably connected to the vertical slot 9039, thereby limiting the moving position of the moving block 9038 to a certain extent.
[0052] In a further embodiment, a plurality of connection ports are provided on the rear side of the PLC control cabinet body 1 , and an illumination lamp 105 is provided on the top of the PLC control cabinet body 1 .
[0053] In a further embodiment, the control mechanism 104 is electrically connected to the second motor 301, the vacuum fan 504, the first motor 904, the lighting lamp 105, the heat dissipation mechanism 6 and the display screen 103 to facilitate control of each device.
[0054] When it is necessary to maintain the equipment placed on the first placement plate 7 and the second placement plate 902, the placement plate can be pulled by the handle 702 to move it, so that the equipment placed on the placement plate can be moved to the outside of the PLC control cabinet body 1 for easy maintenance.
[0055] When in use, a first placement plate 7 is arranged above the heat dissipation mechanism 6, and two groups of adjustable placement plates 9 are arranged above the first placement plate 7, so that the interior of the PLC control cabinet body 1 is divided into several groups of placement areas, and the second placement plate 902 in the adjustable placement plate 9 can be moved, so as to adjust the distance between each placement plate according to the height of different placement equipment. When the height of the second placement plate 902 needs to be adjusted, the first motor 904 is turned on, and the first motor 904 drives the turbine 9032 and the first transmission rod 9033 to rotate through the worm 9031. Under the action of the rotation of the first transmission rod 9033, the double-groove driving wheel 9034 drives the driven wheel 9036 and the first threaded rod 9037 to rotate through the transmission belt 9035. Under the action of the rotation of the first threaded rod 9037, the second slide groove 901 and the second placement plate 902 are driven to move through the moving block 9038.
[0056] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.
[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A PLC control cabinet with a classification mechanism and convenient maintenance, comprising a PLC control cabinet body (1), a cabinet door (101) is installed on one side of the PLC control cabinet body (1), and a plurality of heat dissipation ports (102) are opened on the cabinet door (101), and a display screen (103) and a control mechanism (104) are arranged on the top of the PLC control cabinet body (1), characterized in that: The PLC control cabinet body (1) is located above the base (2); the base (2) has an open groove symmetrically provided at the bottom, and a lifting pulley mechanism (3) is provided inside the open groove; the base (2) has an installation groove (4) provided at the bottom, and a limited suction cup mechanism (5) is installed inside the installation groove (4); a heat dissipation mechanism (6) is installed at the bottom of the inner side of the PLC control cabinet body (1), and a first placement plate (7) is provided above the heat dissipation mechanism (6); the first placement plate (7) is slidably connected to a first slide groove (8) symmetrically provided inside the PLC control cabinet body (1), and two groups of adjustable placement plates (9) are provided above the first placement plate (7); the adjustable placement plates (9) include a symmetrically provided second slide groove (901), and a second placement plate (902) is slidably connected inside the second slide groove (901); the second slide groove (901) is slidably connected to the inner wall of the PLC control cabinet body (1); The height adjustment mechanism (903) is connected to a height adjustment mechanism (903) arranged thereon, and one end of the height adjustment mechanism (903) is connected to a first motor (904) arranged outside the PLC control cabinet body (1), the height adjustment mechanism (903) comprises a worm (9031), and one end of the worm (9031) is connected to an output end of the first motor (904), the worm (9031) is meshed with a turbine (9032), and a first transmission rod (9033) is connected to the inner side of the turbine (9032), a double-groove driving wheel (9034) is arranged outside the first transmission rod (9033), and the double-groove driving wheel (9034) is connected to driven wheels (9036) arranged on both sides through a transmission belt (9035), a first threaded rod (9037) is connected to the inner side of the driven wheel (9036), and the first threaded rod (9037) is connected to the second slide groove (901) through a moving block (9038); The lifting pulley mechanism (3) comprises a second motor (301), and the output end of the second motor (301) is connected to a first bevel gear (303) arranged inside the base (2) through a second transmission rod (302), the outer side of the first bevel gear (303) is meshed with the second bevel gear (304), and the inner side of the second bevel gear (304) is connected to a third transmission rod, the third transmission rod is connected to a first gear (305), and the first gear (305) is meshed with second gears (306) arranged on both sides, the inner side of the second gear (306) is connected to a second threaded rod (307), and the second threaded rods (307) are connected to each other through a moving plate (308), and a universal wheel (309) is installed at the bottom of the moving plate (308); The position-limiting suction cup mechanism (5) comprises a suction cup (501), and the suction cup (501) is located inside the mounting groove (4); one side of the suction cup (501) is connected to an air intake pipe (502), and the end of the air intake pipe (502) passes through the outside of the base (2); the other side of the suction cup (501) is connected to an air exhaust fan (504) arranged on the top of the base (2) via an air exhaust pipe (503).
2. A PLC control cabinet with a classification mechanism and convenient for maintenance according to claim 1, characterized in that: The movable plate (308) is located inside the opening slot, and the movable plate (308) is slidably connected to the inside of the opening slot.
3. A PLC control cabinet with a classification mechanism and convenient for maintenance according to claim 1, characterized in that: An air plug is installed inside the end of the air inlet pipe (502), and the air plug is connected to a connecting ring arranged on the top of the base (2) via a connecting line.
4. A PLC control cabinet with a classification mechanism and convenient for maintenance according to claim 1, characterized in that: The first placement plate (7) is provided with a plurality of groups of ventilation holes (701), and a handle (702) is installed on one side of the first placement plate (7). The first placement plate (7) and the second placement plate (902) have the same structure.
5. The PLC control cabinet with a classification mechanism and convenient for maintenance according to claim 1 is characterized in that: The first threaded rod (9037) is located inside a vertical slot (9039) provided in the PLC control cabinet body (1), and the moving block (9038) is slidably connected to the vertical slot (9039).
6. A PLC control cabinet with a classification mechanism and convenient for maintenance according to claim 1, characterized in that: The rear side of the PLC control cabinet body (1) is provided with a plurality of connection ports, and the top of the PLC control cabinet body (1) is provided with an illumination lamp (105).
7. A PLC control cabinet with a classification mechanism and convenient for maintenance according to claim 1, characterized in that: The control mechanism (104) is electrically connected to the second motor (301), the air extractor (504), the first motor (904), the lighting lamp (105), the heat dissipation mechanism (6) and the display screen (103).
