Computer case capable of automatic protection

Abstract

The present invention discloses a computer case capable of automatic protection, relating to the field of computer cases, and comprising a case body, a first fan box mounted on the top of the case body, and a cover plate rotatably connected thereto for covering the first fan box, at least one first fan being disposed within the first fan box, the cover plate being capable of opening when the first fan is started and closing when the first fan is stopped, an air inlet assembly for blowing air into the case body being mounted at the bottom end of the case body, and a dust filter assembly being disposed at the air inlet. The present invention utilizes the power generated by the fan assembly when it is started and stopped to automatically open and close the cover plate at the top of the case body and remove dust from the dust filter assembly at the bottom of the case body, thereby achieving automatic protection for the computer case while maintaining efficient gas circulation within the case.

Description

Technical Field

[0001] The present invention relates to the field of computer cases, in particular to a computer case capable of automatic protection. Background Art

[0002] As a part of computer accessories, the main function of the chassis is to place and fix various computer accessories, play a supporting and protective role, and can also make the computer system more stable and reduce short circuits.

[0003] The Chinese patent with relevant announcement number CN116578172A discloses a protective computer chassis, including a support, a chassis, a limit plate and a return spring. The chassis is fixedly connected to the limit plate, and the chassis is slidably limited on the support by the limit plate. A return spring is connected between the limit plate and the support. It also includes a ventilation mechanism and a cleaning roller. The cleaning roller is used to clean the circulating ventilation screen plate.

[0004] With respect to the above-mentioned related technologies, the ventilation screen plate on the top of the existing computer case is in the shape of a conveyor belt and has a double-layer structure in the vertical direction. The ventilation holes on the double-layer ventilation screen plate are difficult to align with each other in the vertical direction during the circulation of the ventilation screen plate, which easily blocks the airflow passing through the ventilation screen plate, affecting the gas circulation efficiency of the case. Moreover, when the computer is not working, external dust can easily fall directly into the case through the through holes on the ventilation screen plate. In summary, it is difficult for existing computer cases to achieve automatic protection while maintaining good heat dissipation capabilities. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a computer case capable of automatic protection, so as to solve the technical problem that existing computer cases are difficult to achieve automatic protection while maintaining good heat dissipation capabilities.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a computer case capable of automatic protection, comprising a case body, a first fan box installed on the top of the case body, and a cover plate rotatably connected to cover the first fan box, at least one first fan is arranged in the first fan box, the cover plate can be flipped open when the first fan is started, and closed when the first fan stops, an air inlet assembly for blowing air into the case body is installed at the bottom end of the case body, and a dust filter assembly is arranged at the air inlet.

[0007] By adopting the above technical solution, the power generated by the start and stop of the fan assembly is used to automatically open and close the top cover of the box and remove dust from the dust filter assembly at the bottom of the box, thereby achieving automatic protection of the computer case while maintaining efficient gas circulation efficiency in the case.

[0008] The present invention is further configured such that the first fan is connected to an annular driving disk through a transmission assembly, a driven column is coaxially arranged at the center of the driving disk, and the driving disk and the driven column are both rotatably connected to the first fan box, the outer wall of the driven column is connected with snap-on pieces at annular intervals, and the driving disk is radially slidably connected with a plug-in piece that can cooperate with the snap-on piece, a spring is arranged between the end of the plug-in piece away from the driven column and the inner wall of the driving disk, and as the rotation speed of the driving disk gradually increases, the plug-in piece will slide into the driving disk away from the snap-on piece until it is completely out of contact with the snap-on piece, and vice versa, the driven column drives the cover plate to open through the transmission assembly, and a spring is fixedly connected to the top of the box body, and the cover plate is blocked by the spring plate after it is opened and exceeds the vertical state.

[0009] By adopting the above technical solution, when the rotation speed of the driving disk gradually increases and the plug post fails to overcome the spring force and retract into the driving disk, the driving disk can transmit the power to the driven post through the cooperation between the plug post and the clamping piece.

[0010] The present invention is further configured such that the bottom end of the box body is vertically spaced apart with a top plate and a bottom plate parallel to each other, the top plate and the bottom plate both being trapezoidal in structure, at least one second fan box being provided between the planes of the top plate and the bottom plate, the inclined surfaces of the bottom plate being spaced apart with ventilation holes, a blocking net being fixedly connected between the top plate and the inner wall of the box body and passing through the ventilation holes and being in a taut state, the blocking net being used to block dust.

[0011] By adopting the above technical solution, the inclined surfaces of the top plate and the bottom plate, which are parallel to each other, form a downwardly inclined air inlet.

[0012] The present invention is further configured such that the top frame of the barrier net is fixedly connected with a transmission rod extending toward the second fan box, a second fan is provided inside the second fan box, and a driven disk is rotatably connected on both sides, a transmission assembly is provided between the driven disk and the second fan, the rotating shaft of the driven disk is radially fixedly connected with a fixed cylinder, a telescopic column is slidably connected inside the fixed cylinder, a spring is provided between the end of the telescopic column and the inner wall of the fixed cylinder, a hammer is fixedly connected to the end of the telescopic column, a protrusion is provided at the end of the transmission rod, the telescopic column will extend as the speed of the driven disk increases, and the hammer can hit the protrusion during the start and stop of the second fan.

[0013] By adopting the above technical solution, during the start and stop process of the second fan, the spring tension connected to the end of the telescopic column prevents the telescopic column from being fully extended from the fixed tube. The hammer will hit the protrusion during the rotation process, and the vibration caused by the impact will shake off the dust attached to the taut barrier net.

[0014] The present invention is further configured such that the top end of the box body is rotatably connected to a cover plate shaft, the cover plate shaft is fixedly connected to the edge of the cover plate, a driven gear plate is fixedly connected to the cover plate shaft, a driving gear plate meshing with the driven gear plate is rotatably connected in the first fan box, the rotating shaft of the driving gear plate is connected to the rotating shaft of the second bevel gear rotatably arranged in the first fan box through a transmission belt, the second bevel gear is meshed with the first bevel gear, the first bevel gear is rotatably connected in the first fan box, and a transmission belt is connected between the rotating shaft of the first bevel gear and the driven column.

[0015] By adopting the above technical solution, the driven column rotates the cover plate shaft of the cover plate through the transmission assembly.

[0016] The present invention is further configured such that the first fan box is obliquely arranged on the top surface of the box body, and the angle between the cover plate and the surface of the first fan box after being flipped open is greater than ninety degrees.

[0017] By adopting the above technical solution, when the cover plate is covered on the first fan box, the cover plate is also in an inclined state, which is beneficial to reduce the adhesion of dust.

[0018] The present invention is further configured such that the width of the ventilation opening is greater than the thickness of the barrier net.

[0019] By adopting the above technical solution, the incoming air can have a larger contact area with the barrier net after passing through the ventilation hole, which can effectively improve the gas flow efficiency of the incoming air.

[0020] The present invention is further configured such that side panels are fixedly connected to both sides of the box body, and the bottom ends of the side panels are flush with the bottom ends of the inclined surfaces of the top panels.

[0021] By adopting the above technical solution, the side panels play a role in protecting the internal components of the box and closing both sides of the box.

[0022] The present invention is further configured such that when the first fan completes startup, the cover plate touches the spring sheet and does not compress the spring sheet. During the shutdown of the first fan, the spring sheet will be compressed, and the elastic potential energy released by the spring sheet after compression can cause the cover plate to rotate toward the first fan box to a vertical state beyond the cover plate.

[0023] By adopting the above technical solution, the cover is prevented from rebounding due to the elastic force of the shrapnel during the process of opening the cover.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] The present invention provides air intake and exhaust fan assemblies at the bottom and top of the case respectively, and utilizes the power of the fan assemblies when starting and stopping to automatically open and close the top cover of the case and remove dust from the dust filter assembly at the bottom of the case, thereby achieving automatic protection of the computer case while maintaining high gas circulation efficiency in the case.

[0026] The present invention provides a plug-in column that is controlled to extend and retract under centrifugal force in the driving disk. When the first fan above the box is started, the speed of the driving disk is not high and the plug-in column has not retracted into the driving disk. At this time, the driving disk can transmit power to the driven column to open the cover. After the speed of the first fan increases and stabilizes, the plug-in column retracts into the driving disk and breaks away from the driven column. The cover is in an open state due to its own gravity, and the cover is automatically opened when the computer is turned on.

[0027] The present invention provides a plug-in column in the driving disk that is controlled to extend and retract by centrifugal force. When the first fan above the box stops rotating, the speed gradually decreases. The plug-in column extends out of the driving disk and cooperates with the driven column, causing the cover to continue rotating and compressing the spring plate. After the driving disk stops transmitting power to the driven column, the elastic force of the spring plate causes the cover to flip over and rotate toward the box beyond the vertical equilibrium position, thereby automatically closing the cover when the computer is shut down.

[0028] The present invention provides a plurality of second fans blowing upward at the bottom of the box body, and provides multiple layers of blocking nets at intervals on both sides of the second fans, thereby effectively blocking dust from entering the box body and preventing dust from entering the box body along the airflow used for heat dissipation.

[0029] The present invention uses a second fan to drive a hammer that is controlled to extend and retract by centrifugal force. During the start and stop of the second fan, the hammer can knock on the transmission rod connected to the barrier net, shaking off the dust on the barrier net, thereby allowing the barrier net to continuously maintain a good ventilation rate and at the same time maintain the dust blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 This is a three-dimensional diagram of the internal structure of the box body of the present invention with the cover plate opened;

[0032] Figure 3 A three-dimensional diagram of the internal structure of the first fan box of the present invention;

[0033] Figure 4 For the present invention Figure 3 A magnified view of middle A;

[0034] Figure 5 This is a front view of the box body of the present invention with the cover plate opened;

[0035] Figure 6 For the present invention Figure 5 Enlarged view of middle B;

[0036] Figure 7 A three-dimensional diagram of the internal structure of the drive disk of the present invention;

[0037] Figure 8 A three-dimensional diagram of the dust filter assembly of the present invention;

[0038] Figure 9 A three-dimensional diagram of the dust filter assembly of the present invention with the top plate removed;

[0039] Figure 10 For the present invention Figure 9 Enlarged view of C in the middle.

[0040] In the figure: 1. Box body; 101. Side panel; 2. Cover plate; 3. First fan box; 4. First fan; 5. Driving disc; 501. Insert column; 6. Driven column; 601. Snap-in piece; 7. First bevel gear; 8. Second bevel gear; 9. Driving gear disc; 10. Driven gear disc; 11. Cover plate shaft; 12. Shrapnel; 13. Top plate; 14. Bottom plate; 1401. Ventilation port; 15. Second fan box; 16. Second fan; 17. Barrier net; 1701. Transfer rod; 1702. Protrusion; 18. Driven disc; 19. Fixing cylinder; 20. Telescopic column; 21. Hammer. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0042] The following describes an embodiment of the present invention based on its overall structure. Example

[0043] A computer case capable of automatic protection, such as Figure 1-10 As shown, it includes a box body 1, a first fan box 3 is installed on the top of the box body 1, and a cover 2 is rotatably connected to cover the first fan box 3, at least one first fan 4 is arranged in the first fan box 3, specifically, in this embodiment, two first fans 4 are arranged in the first fan box 3, the cover 2 can be opened when the first fan 4 is started, and closed when the first fan 4 stops, an air inlet assembly for blowing air into the box body 1 is installed at the bottom end of the box body 1, and a dust filter assembly is provided at the air inlet, specifically, the air inlet assembly includes a second fan 16, and the dust filter assembly includes a blocking net 17, and both sides of the box body 1 are fixedly connected with side panels 101, and the bottom end of the side panel 101 is flush with the bottom end of the inclined surface of the top panel 13, and the side panel 101 plays a role in protecting the internal components of the box body 1 and closing both sides of the box body 1.

[0044] See also Figure 3-7 The first fan 4 is connected to a ring-shaped drive disc 5 through a transmission assembly. A driven column 6 is coaxially arranged at the center of the drive disc 5. The drive disc 5 and the driven column 6 are both rotatably connected to the first fan box 3. The outer wall of the driven column 6 is connected with a card plate 601 at intervals along the annular direction. The drive disc 5 is radially slidably connected with a plug 501 that can cooperate with the card plate 601. The plug 501 can be inserted between the card plates 601, thereby enabling the drive disc 5 to transmit to the driven column 6, and the plug 501 is away from the driven column 6 and the inner wall of the driving disk 5. A spring is provided between one end of the driving disk 5 and the inner wall of the driving disk 5. The spring is used to push the plug post 501 toward the driven post 6. As the rotation speed of the driving disk 5 gradually increases, the plug post 501 will slide into the driving disk 5 away from the card plate 601 until it is completely out of contact with the card plate 601. Conversely, in the same way, specifically, as the rotation speed of the driving disk 5 gradually decreases, the plug post 501 will gradually extend from the driving disk 5 and be inserted between the card plates 601, thereby restoring the driving ability of the driving disk 5 on the driven post 6.

[0045] See also Figure 3-7 , the driven column 6 drives the cover plate 2 to open through the transmission assembly, and the top of the box body 1 is fixedly connected with the elastic piece 12. After the cover plate 2 is opened and exceeds the vertical state, it is blocked by the elastic piece 12. Specifically, when the cover plate 2 is in the vertical state, it will not be flipped to the sides by its own gravity. Once it rotates to one side and exceeds the position of the vertical state, it will have a tendency to flip under the action of its own gravity. The first fan 4 is driven to the driving disk 5 through the transmission belt, so that the driving disk 5 rotates in the same direction when the first fan 4 is working. During the process of gradually increasing speed, when the plug post 501 fails to overcome the spring force and is retracted into the driving disc 5, the driving disc 5 can transmit the power to the driven post 6 through the cooperation between the plug post 501 and the clamping piece 601. After the speed of the driving disc 5 gradually increases and the first fan 4 is started, the plug post 501 slides into the driving disc 5 and disengages from the clamping piece 601. The driving disc 5 can no longer drive the driven post 6 to rotate. At this time, the cover plate 2 has been opened and is in a tilted stable state due to its own gravity and the limitation of the spring piece 12.

[0046] See also Figure 2 、 Figure 8-10The bottom end of the box body 1 is vertically spaced apart with a top plate 13 and a bottom plate 14 which are parallel to each other. Both the top plate 13 and the bottom plate 14 are trapezoidal structures. At least one second fan box 15 is arranged between the planes of the top plate 13 and the bottom plate 14. Specifically, in the present embodiment, there are three second fan boxes 15 in total. The inclined surfaces of the bottom plate 14 are spaced apart with ventilation openings 1401. A blocking net 17 which passes through the ventilation openings 1401 and is in a taut state is fixedly connected between the top plate 13 and the inner wall of the box body 1. The blocking net 17 is used to block dust and has elastic force. The inclined surfaces of the top plate 13 and the bottom plate 14 which are parallel to each other form a downwardly inclined air inlet, which can effectively prevent the accumulation of dust when the computer is not in operation. The air passing through the ventilation openings 1401 needs to pass through multiple layers of blocking nets 17 in sequence before it can enter between the bottom plate 14 and the inner wall of the box body 1. The multiple layers of blocking nets 17 are arranged at intervals, which is not easy to affect the air intake efficiency of the box body 1.

[0047] See also Figure 2-6 The top of the box body 1 is rotatably connected to the cover shaft 11, and the cover shaft 11 is fixedly connected to the edge of the cover plate 2. A driven gear plate 10 is fixedly connected to the cover shaft 11, and a driving gear plate 9 engaged with the driven gear plate 10 is rotatably connected in the first fan box 3. The driving gear plate 9 stably transmits the transmission to the driven gear plate 10, and the rotating shaft of the driving gear plate 9 is connected to the rotating shaft of the second bevel gear 8 arranged in the first fan box 3 through a transmission belt. The second bevel gear 8 is engaged with the first bevel gear 7, and the first bevel gear 7 is rotatably connected to the first fan box 3. A transmission belt is connected between the rotating shaft of the first bevel gear 7 and the driven column 6, and the driven column 6 rotates the cover shaft 11 of the cover plate 2 through the transmission assembly. In the process of opening the cover plate 2, the speed of the first fan 4 gradually increases to blow air upward, and the airflow blown out by the first fan 4 can also help the cover plate 2 to be opened to a certain extent.

[0048] See also Figure 2 、 Figure 5-6 When the first fan 4 completes startup, the cover plate 2 touches the spring piece 12 and does not compress the spring piece 12, so as to prevent the spring piece 12 from being compressed and rebounding the cover plate 2, thereby ensuring that the cover plate 2 can be smoothly flipped open. During the shutdown of the first fan 4, the spring piece 12 will be compressed, and the elastic potential energy released by the spring piece 12 after compression can make the cover plate 2 rotate toward the first fan box 3 to a vertical state beyond the cover plate 2. The cover plate 2 that has passed the vertical state is flipped back to its original position due to its own gravity. Example

[0049] A computer case capable of automatic protection, such as Figure 1-10As shown, based on the embodiment 1, the difference from the embodiment 1 is that the top frame of the barrier net 17 is fixedly connected to a transmission rod 1701 extending toward the second fan box 15, and the second fan 16 is provided inside the second fan box 15, and is rotatably connected to a driven disk 18 on both sides, and a transmission assembly is provided between the driven disk 18 and the second fan 16, and the rotating shaft of the driven disk 18 is fixedly connected to a fixed cylinder 19 in the radial direction, and a telescopic column 20 is slidably connected in the fixed cylinder 19, and the end of the telescopic column 20 is connected to the fixed cylinder 1 9 is provided with a spring, and the end of the telescopic column 20 is fixedly connected with a hammer 21. Specifically, the telescopic column 20 is a square cylindrical rubber column, which can only be telescoped and cannot be rotated relative to the fixed cylinder 19. When the hammer 21 hits the protrusion 1702, the telescopic column 20 can be deformed to unload the force, thereby preventing the driven disk 18 from stopping after the hammer 21 hits the protrusion. The hammer 21 can hit the protruding part of the transmission rod 1701 when the speed of the driven disk 18 is not high, causing the transmission rod 1701 to vibrate and thereby realize the dust removal of the blocking net 17.

[0050] See also Figure 8-10 The end of the transmission rod 1701 is provided with a protrusion 1702. The telescopic column 20 will extend as the speed of the driven disk 18 increases. The hammer 21 can hit the protrusion 1702 during the start and stop process of the second fan 16. During the start and stop process of the second fan 16, the spring tension connected to the end of the telescopic column 20 prevents the telescopic column 20 from being completely extended from the fixed cylinder 19. The hammer 21 will hit the protrusion 1702 during the rotation process. The vibration caused by the collision will shake off the dust attached to the taut barrier net 17, so that the dust on the barrier net 17 is It is not easy to accumulate dust, maintain the efficient gas circulation efficiency of the barrier net 17, and keep the cleanliness of the barrier net 17. After the speed of the second fan 16 gradually increases to the normal working speed, the speed of the driven disk 18 also increases accordingly. The centrifugal force exerted on the telescopic column 20 in the fixed cylinder 19 increases to overcome the elastic force of the spring, further stretching the spring, so that the hammer 21 is separated from the rotation radius that will collide with the protrusion 1702, avoiding the hammer 21 affecting the normal work of the second fan 16, and removing dust from the barrier net 17 during the start and stop of the second fan 16. Example

[0051] A computer case capable of automatic protection, such as Figure 1-10As shown, on the basis of Example 2, the difference from Example 2 is that the first fan box 3 is tilted on the top surface of the box body 1, and the angle between the cover plate 2 and the surface of the first fan box 3 is greater than ninety degrees after it is flipped open. When the cover plate 2 is covered on the first fan box 3, the cover plate 2 is also tilted, which is beneficial to reduce the adhesion of dust and makes the surface of the cover plate 2 easy to scrub. When the first fan 4 is working, it blows air upward, and it is difficult for external dust to enter the box body 1 through the working first fan 4. After the cover plate 2 is flipped open, the angle between the cover plate 2 and the first fan box 3 is greater than ninety degrees. On the one hand, it allows the cover plate 2 to maintain the flipped open state due to its own gravity, and on the other hand, it can also prevent the cover plate 2 from affecting the gas circulation efficiency of the air flowing out along the axis of the first fan 4.

[0052] See also Figure 8-10 The width of the vent 1401 is greater than the thickness of the barrier net 17, so that the incoming air can have a larger contact area with the barrier net 17 after passing through the vent 1401, which can effectively improve the gas flow efficiency of the incoming air. When the second fan 16 is working, since the bottom plate 14 is a certain distance away from the bottom surface of the inner wall of the box body 1, the negative pressure generated by the second fan 16 is not enough to suck in the dust accumulated in the box body 1 and blow it upwards. In the process of the protrusion 1702 of the barrier net 17 being hit by the hammer 21 and vibrating, the speed of the second fan 16 is not high, and the negative pressure generated is not enough to suck in the shaken dust and blow it upwards.

[0053] The working principle of the present invention is as follows: when the computer is turned on, the first fan 4 in the first fan box 3 is started, and the first fan 4 directly drives the driving disk 5 to rotate. In the process of gradually increasing the speed of the driving disk 5, the centrifugal force exerted on the plug post 501 is not enough to overcome the elastic force of the spring, and the plug post 501 does not retract into the inside of the driving disk 5. The plug post 501 is engaged with the engaging piece 601 to make the driving disk 5 transmit the power to the driven post 6. The driven post 6 causes the cover plate 2 to be opened through the transmission assembly. After the cover plate 2 rotates past the vertical position, the speed of the first fan 4 is increased to a stable state at the same time. At this time, the centrifugal force of the plug post 501 overcomes the elastic force of the spring, and the plug post 501 retracts into the inside of the driving disk 5 and disengages from the engaging piece 601. The cover plate 2 automatically opens when the computer is turned on. When the computer is turned off, the first fan 4 reduces its speed. During the process, the centrifugal force on the plug post 501 is reduced, and it extends from the driving disk 5 to cooperate with the driven post 6, so that the cover 2 continues to rotate in the opening direction. The lower end of the cover 2 compresses the spring piece 12, and the spring piece 12 accumulates elastic potential energy. The elastic potential energy of the spring piece 12 is used to push the cover 2 in the opposite direction after the cover 2 is opened and stops rotating, so that the cover 2 rotates in the closing direction, and the cover 2 rotates until it passes the vertical position. The cover 2 can be flipped over and closed by its own gravity, and the closing of the cover 2 is automatically completed when the computer is shut down. When the computer is working, the second fan 16 under the box 1 works synchronously to blow air upward, and the first fan 4 also works to blow air upward, so that the gas in the box 1 flows upward efficiently, maintaining the efficient heat dissipation capacity in the box while providing good protection for the box 1.

[0054] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A computer case capable of automatic protection, comprising a case body (1), characterized in that: A first fan box (3) is installed on the top of the box (1), and a cover plate (2) for covering the first fan box (3) is rotatably connected. At least one first fan (4) is arranged in the first fan box (3). The cover plate (2) can be opened when the first fan (4) is started and closed when the first fan (4) stops. An air inlet assembly for blowing air into the box (1) is installed at the bottom end of the box (1), and a dust filter assembly is arranged at the air inlet. The first fan (4) is connected to an annular drive disk (5) through a transmission assembly. A driven column (6) is coaxially arranged at the center of the drive disk (5). The drive disk (5) and the driven column (6) are both rotatably connected to the first fan box (3). The outer wall of the driven column (6) A snap-fitting piece (601) is connected at intervals along the annular direction, and a plug (501) capable of cooperating with the snap-fitting piece (601) is connected radially and slidably in the driving disk (5). A spring is provided between the end of the plug (501) away from the driven column (6) and the inner wall of the driving disk (5). As the rotation speed of the driving disk (5) gradually increases, the plug (501) slides into the driving disk (5) away from the snap-fitting piece (601) until it is completely out of contact with the snap-fitting piece (601). Conversely, the driven column (6) drives the cover plate (2) to open through the transmission assembly. A spring (12) is fixedly connected to the top of the box body (1). After the cover plate (2) is opened and exceeds the vertical state, it is blocked by the spring (12).

2. The computer case capable of automatic protection according to claim 1, characterized in that: The bottom end of the box body (1) is connected to a top plate (13) and a bottom plate (14) in parallel with each other at intervals in the vertical direction. The top plate (13) and the bottom plate (14) are both trapezoidal structures. At least one second fan box (15) is provided between the planes of the top plate (13) and the bottom plate (14). Ventilation holes (1401) are provided at intervals on the inclined surface of the bottom plate (14). A blocking net (17) passing through the ventilation holes (1401) and in a taut state is fixedly connected between the top plate (13) and the inner wall of the box body (1). The blocking net (17) is used to block dust.

3. The computer case capable of automatic protection according to claim 2, characterized in that: The top frame of the blocking net (17) is fixedly connected to a transmission rod (1701) extending toward the second fan box (15), the second fan (16) is arranged inside the second fan box (15), and driven disks (18) are rotatably connected on both sides, a transmission assembly is arranged between the driven disk (18) and the second fan (16), the rotating shaft of the driven disk (18) is fixedly connected to a fixed cylinder (19) in the radial direction, a telescopic column (20) is slidably connected inside the fixed cylinder (19), a spring is arranged between the end of the telescopic column (20) and the inner wall of the fixed cylinder (19), a hammer (21) is fixedly connected to the end of the telescopic column (20), a protrusion (1702) is arranged at the end of the transmission rod (1701), the telescopic column (20) will extend as the speed of the driven disk (18) increases, and the hammer (21) can hit the protrusion (1702) during the start and stop process of the second fan (16).

4. The computer case capable of automatic protection according to claim 1, characterized in that: The top end of the box body (1) is rotatably connected to a cover plate shaft (11), the cover plate shaft (11) is fixedly connected to the edge of the cover plate (2), a driven gear disc (10) is fixedly connected to the cover plate shaft (11), a driving gear disc (9) meshing with the driven gear disc (10) is rotatably connected in the first fan box (3), the rotating shaft of the driving gear disc (9) is connected to the rotating shaft of a second bevel gear (8) rotatably arranged in the first fan box (3) through a transmission belt, the second bevel gear (8) meshes with a first bevel gear (7), the first bevel gear (7) is rotatably connected in the first fan box (3), and a transmission belt is connected between the rotating shaft of the first bevel gear (7) and the driven column (6).

5. The computer case capable of automatic protection according to claim 4, characterized in that: The first fan box (3) is tiltedly arranged on the top surface of the box body (1); when the cover plate (2) is opened, the angle between the cover plate (2) and the surface of the first fan box (3) is greater than ninety degrees.

6. The computer case capable of automatic protection according to claim 3, characterized in that: The width of the vent (1401) is greater than the thickness of the barrier net (17).

7. The computer case capable of automatic protection according to claim 2, characterized in that: Both sides of the box body (1) are fixedly connected with side panels (101), and the bottom ends of the side panels (101) are flush with the bottom ends of the inclined surfaces of the top panels (13).

8. The computer case capable of automatic protection according to claim 5, characterized in that: When the first fan (4) is started up, the cover plate (2) contacts the spring piece (12) and does not compress the spring piece (12). During the process of stopping the first fan (4), the spring piece (12) is compressed, and the elastic potential energy released by the spring piece (12) after compression can cause the cover plate (2) to rotate toward the first fan box (3) to a vertical state beyond the cover plate (2).

Images