Case sheet metal part with heat dissipation holes having self-cleaning function
By introducing rotating components and guide rods into the sheet metal parts of the chassis, the problem of difficult-to-clean dust in the middle part of the filter screen is solved, achieving efficient filter screen cleaning and convenient cleaning brush replacement, and improving the self-cleaning function of the heat dissipation holes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, cleaning brushes are ineffective at cleaning dust in the middle part of the filter screen, resulting in low cleaning efficiency.
A chassis sheet metal structure including a rotating component, a guide rod, and a disassembly component is designed. The motor drives a reciprocating screw to drive a rack and gear, which in turn drives the rotating shaft and cleaning brush to rotate. Combined with the guide rod guiding the rack to move, it ensures that the cleaning brush can thoroughly clean the dust on the filter surface. The disassembly component makes it easy to replace worn cleaning brushes.
It achieves comprehensive cleaning of dust on the filter surface, prevents blockage in the middle part, improves cleaning efficiency, simplifies the cleaning brush replacement process, and maintains the cleaning effect.
Smart Images

Figure CN224072784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chassis sheet metal parts, specifically a chassis sheet metal part with self-cleaning function for heat dissipation holes. Background Technology
[0002] Sheet metal parts are products manufactured using sheet metal processing techniques. They are characterized by their light weight, high strength, conductivity (which can be used for electromagnetic shielding), low cost, and good mass production performance. They are widely used in industries such as electronics, communications, automotive, and medical devices, and are an indispensable component. Sheet metal chassis are usually welded from multiple sheet metal parts. They are lightweight and widely used in power, networking, and server applications as external housings.
[0003] In order to facilitate heat dissipation of components inside the enclosure, especially electronic components, heat dissipation holes are usually provided on the sheet metal parts. Filters are installed in the heat dissipation holes, and fans and other components for ventilation and heat dissipation are mounted on the side of the filter.
[0004] According to Chinese Patent No. CN216873501U, a chassis sheet metal part with self-cleaning function for heat dissipation holes is disclosed. This utility model can clean the dust attached to the filter screen online without stopping the machine, ensuring the normal operation of the components inside the chassis. It has high cleaning efficiency and good effect.
[0005] Regarding the aforementioned patent content, by providing a movable cleaning brush, when the filter needs to be cleaned, simply move the cleaning brush to contact the filter, then start the motor to drive the cleaning brush to rotate and clean the filter. However, due to the limitation of the screw, it is difficult for the cleaning brush to contact the middle part of the filter, making it inconvenient to clean the dust in the middle part of the filter when the cleaning brush rotates, thereby reducing the overall cleaning efficiency of the filter. Utility Model Content
[0006] Therefore, the purpose of this utility model is to provide a chassis sheet metal part with a self-cleaning function for heat dissipation holes, so as to solve the technical problem of inconvenience in cleaning dust in the middle part of the filter.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a chassis sheet metal part with self-cleaning ventilation holes, comprising a sheet metal part and a rotating shaft. A bracket is mounted on one side of the sheet metal part, and a rotating assembly is provided inside the bracket. The rotating assembly includes a motor mounted on the top of the bracket, a mounting plate disposed at one end of the rotating shaft, and a gear sleeved on the outer wall of the rotating shaft. The output end of the motor is connected to a reciprocating lead screw, and a rack is sleeved on the outer wall of the reciprocating lead screw. A cleaning brush is mounted on one side of the mounting plate. A disassembly and assembly assembly is provided on the rotating shaft, and the disassembly and assembly assembly includes opening... The rotating shaft has a cavity inside and positioning grooves at the top and bottom. Positioning blocks are placed in both positioning grooves, and locking grooves are provided at the bottom of one positioning block and the top of the other positioning block. A threaded rod is connected to the inside of the cavity through a bearing, and a movable seat is sleeved on the outer wall of the threaded rod. Two sliding grooves are provided on one side of the cavity, and a slider is provided inside the sliding groove. A movable block is installed on one side of the slider, and a pull plate is rotatably connected between the movable block and the movable seat. A locking block extending into the locking groove is installed on the movable block.
[0008] By adopting the above technical solution, when it is necessary to clean the dust attached to the surface of the filter screen, the motor can be started. The operation of the motor can drive the reciprocating lead screw to rotate, thereby driving the rack to move.
[0009] Furthermore, the rotating assembly also includes a guide rod installed within the bracket, the guide rod passing through the rack.
[0010] By adopting the above technical solution, the guide rod can guide the rack, prevent the rack from rotating, and thus improve the stability of the rack during movement.
[0011] Furthermore, the rack meshes with the gear, and the bottom end of the reciprocating screw is connected to the bracket via a bearing.
[0012] By adopting the above technical solution, when the rack moves back and forth, it can drive the gear to rotate, and the gear can then drive the shaft to rotate, which in turn drives the cleaning brush to rotate, so as to clean the dust attached to the surface of the filter screen.
[0013] Furthermore, one end of the threaded rod extends through to the outside of the rotating shaft and is connected to a knob, and the movable seat is threadedly connected to the threaded rod.
[0014] By adopting the above technical solution, users can easily rotate the threaded rod by turning the knob, and the rotation of the threaded rod can drive the movable seat to move.
[0015] Furthermore, a heat dissipation hole is provided on one side of the sheet metal part, and a filter screen is installed inside the heat dissipation hole.
[0016] By adopting the above technical solution, the heat dissipation holes facilitate heat dissipation, while the filter screen can block dust and prevent dust from entering the chassis through the heat dissipation holes.
[0017] Furthermore, mounting rods are installed at the upper and lower interior of the bracket, a bearing seat is installed between the two mounting rods, and a rotating shaft is connected to the bearing seat through a bearing.
[0018] By adopting the above technical solution, the mounting rod is designed to facilitate the fixing of the bearing housing, and the bearing housing is designed to facilitate the rotation of the shaft.
[0019] Furthermore, one side of the cleaning brush is attached to the filter screen, and the length of the cleaning brush is greater than the diameter of the filter screen.
[0020] By adopting the above technical solution, the dust attached to the filter screen can be scraped off when the cleaning brush rotates, thus facilitating the cleaning of the filter screen surface.
[0021] Furthermore, one side of the positioning block is connected to the mounting plate, and the mounting plate and the cleaning brush are detachably connected to the rotating shaft through the positioning block.
[0022] By adopting the above technical solution, it is convenient to disassemble and assemble the mounting plate and cleaning brush, so that the severely worn cleaning brush can be replaced.
[0023] Furthermore, the locking block is adapted to the locking groove, and both the locking block and the movable block are slidably connected to the groove via a slider.
[0024] By adopting the above technical solution, when the locking block is inserted into the locking groove, the positioning block can be locked and positioned to prevent the positioning block from moving at will.
[0025] Furthermore, a fan is installed on one side of the bracket.
[0026] By adopting the above technical solution, the fan can effectively improve the heat dissipation of the chassis.
[0027] In summary, the present invention has the following main advantages:
[0028] 1. This utility model is equipped with a rotating component. When it is necessary to clean the dust attached to the filter screen surface, the motor can be started. The motor can drive the reciprocating screw to rotate, which in turn drives the rack to move, then drives the gear to rotate, and then drives the rotating shaft to rotate, which in turn drives the cleaning brush to rotate. This allows the cleaning brush to clean the dust attached to the filter screen surface more thoroughly, avoiding the situation where the dust in the middle part of the filter screen is not cleaned, thereby improving the cleaning efficiency of the dust on the filter screen surface and preventing the middle part of the filter screen from becoming blocked.
[0029] 2. This utility model is equipped with a guide rod, which guides the rack so that it can only move up and down, preventing the rack from rotating and improving the stability of the rack during movement.
[0030] 3. This utility model features a disassembly and assembly component. When the cleaning brush becomes worn after prolonged use and needs replacement, the user can rotate the threaded rod. This rotation causes the movable seat to move away from the cleaning brush. The movable seat then pulls the pull plate, which in turn moves the movable block, causing the locking block to move out of the locking groove. At this point, the positioning block is no longer locked, and the cleaning brush can be removed. To install the cleaning brush, simply place the positioning block on the mounting plate into the positioning groove, then rotate the threaded rod in the opposite direction. This causes the movable seat to rotate in the opposite direction and pushes the locking block back to its original position, moving it into the locking groove and locking the positioning block. This completes the installation of the mounting plate and the cleaning brush. This method allows for quick replacement of the cleaning brush, preventing the continued use of a severely worn brush from affecting the cleaning effect on the filter. Furthermore, this disassembly and assembly method is simple and convenient, thus improving the efficiency of cleaning brush replacement.
[0031] 4. This utility model is equipped with a slider and a groove. When the movable block moves, it will drive the slider to slide inside the groove, thereby improving the stability of the movable block when it moves and improving the stability of the locking block when it moves, so as to ensure that the locking block can be locked into the locking groove for locking and limiting. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0033] Figure 2 This is a schematic diagram of the cross-sectional structure of the bracket of this utility model;
[0034] Figure 3 This is a schematic diagram of the bearing housing structure of this utility model;
[0035] Figure 4 This is a schematic diagram of the rack structure of this utility model;
[0036] Figure 5 This is a schematic diagram of the cleaning brush structure of this utility model;
[0037] Figure 6 For the present utility model Figure 2 Enlarged structural diagram at point A;
[0038] Figure 7 For the present utility model Figure 5 A magnified structural diagram at point B in the middle.
[0039] In the diagram: 1. Sheet metal part; 2. Heat dissipation hole; 3. Filter screen; 4. Bracket; 5. Shaft; 6. Mounting rod; 7. Bearing seat; 8. Rotating assembly; 801. Motor; 802. Reciprocating screw; 803. Rack; 804. Gear; 805. Mounting plate; 806. Cleaning brush; 807. Guide rod; 9. Assembly / disassembly assembly; 901. Cavity; 902. Threaded rod; 903. Movable seat; 904. Positioning groove; 905. Positioning block; 906. Locking block; 907. Locking groove; 908. Pull plate; 909. Movable block; 910. Slider; 911. Slide groove; 10. Fan. Detailed Implementation
[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 construed as limiting the present invention.
[0041] The embodiments of this utility model will be described below based on its overall structure.
[0042] Example 1:
[0043] A type of chassis sheet metal part with self-cleaning ventilation holes, such as Figures 1-7 As shown, the device includes a sheet metal part 1 and a rotating shaft 5. A bracket 4 is installed on one side of the sheet metal part 1, and a rotating component 8 is provided inside the bracket 4. A heat dissipation hole 2 is also provided on one side of the sheet metal part 1, and a filter screen 3 is installed inside the heat dissipation hole 2. The heat dissipation hole 2 is designed to facilitate heat dissipation, and the filter screen 3 can also block dust and prevent dust from entering the chassis through the heat dissipation hole 2. Mounting rods 6 are installed on the upper and lower sides of the bracket 4. A bearing seat 7 is installed between the two mounting rods 6, and the rotating shaft 5 is connected to the bearing seat 7 through a bearing. The mounting rods 6 are designed to fix the bearing seat 7, and the bearing seat 7 is designed to facilitate the rotation of the rotating shaft 5.
[0044] See Figures 1-6The rotating assembly 8 includes a motor 801 mounted on the top of the bracket 4, a mounting plate 805 disposed at one end of the rotating shaft 5, and a gear 804 sleeved on the outer wall of the rotating shaft 5. The output end of the motor 801 is connected to a reciprocating lead screw 802, and a rack 803 is sleeved on the outer wall of the reciprocating lead screw 802. A cleaning brush 806 is mounted on one side of the mounting plate 805. When it is necessary to clean the dust attached to the surface of the filter screen 3, the motor 801 can be started. The operation of the motor 801 can drive the reciprocating lead screw 802 to rotate, thereby driving the rack 803 to move. The rack 803 and the gear 804... The bottom end of the reciprocating screw 802 is connected to the bracket 4 via a bearing. When the rack 803 moves back and forth, it can drive the gear 804 to rotate. The gear 804 then drives the rotating shaft 5 to rotate, which in turn drives the cleaning brush 806 to rotate, so as to clean the dust attached to the surface of the filter screen 3. The rotating shaft 5 is equipped with a disassembly and assembly component 9. One side of the cleaning brush 806 is in contact with the filter screen 3. The length of the cleaning brush 806 is greater than the diameter of the filter screen 3, so that when the cleaning brush 806 rotates, it can scrape off the dust attached to the surface of the filter screen 3, thereby facilitating the cleaning of the surface of the filter screen 3.
[0045] Specifically, the assembly / disassembly component 9 includes a cavity 901 inside the rotating shaft 5 and positioning grooves 904 at the top and bottom of the rotating shaft 5. Positioning blocks 905 are placed on both positioning grooves 904, and locking grooves 907 are provided at the bottom of one positioning block 905 and the top of the other positioning block 905. A threaded rod 902 is connected to the inside of the cavity 901 through a bearing, and a movable seat 903 is sleeved on the outer wall of the threaded rod 902. Two sliding grooves 911 are provided on one side of the cavity 901, and a slider 910 is provided inside the sliding groove 911. A movable block 909 is installed on one side of the slider 910, and a pull plate 908 is rotatably connected between the movable block 909 and the movable seat 903. A locking block 906 extending into the locking groove 907 is installed on the movable block 909. The outer wall of the movable seat 903 fits against the inner wall of the cavity 901 to improve the stability of the movable seat 903 when it moves.
[0046] See Figures 2-6 One end of the threaded rod 902 extends through to the outside of the rotating shaft 5 and is connected to a knob. The movable seat 903 is threadedly connected to the threaded rod 902, allowing the user to rotate the threaded rod 902 via the knob. When the threaded rod 902 rotates, it can drive the movable seat 903 to move. One side of the positioning block 905 is connected to the mounting plate 805. The mounting plate 805 and the cleaning brush 806 are detachably connected to the rotating shaft 5 via the positioning block 905, making it easy to disassemble and assemble the mounting plate 805 and the cleaning brush 806, so that the severely worn cleaning brush 806 can be replaced. The locking block 906 is adapted to the locking groove 907. Both the locking block 906 and the movable block 909 are slidably connected to the sliding groove 911 via the slider 910. When the locking block 906 is inserted into the locking groove 907, the positioning block 905 can be locked and positioned to prevent the positioning block 905 from moving at will.
[0047] Example 2:
[0048] Based on the above embodiment 1, in order to prevent the rack 803 from rotating with the reciprocating screw 802, the rack 803 needs to be guided, so the following structure is set.
[0049] Specifically, the rotating assembly 8 also includes a guide rod 807 installed in the bracket 4. The guide rod 807 passes through the rack 803 and can guide the rack 803 to prevent the rack 803 from rotating, thereby improving the stability of the rack 803 when it moves.
[0050] Based on the above embodiment one, the following structure will be set to improve the heat dissipation effect of the chassis sheet metal parts.
[0051] See Figures 1-3 A fan 10 is installed on one side of the bracket 4. When the fan 10 is working, it will accelerate the airflow around the chassis, thereby improving the heat dissipation effect of the chassis.
[0052] The working principle of this utility model is as follows: First, the setting of heat dissipation hole 2 facilitates heat dissipation, while the setting of filter screen 3 can prevent external dust from entering the chassis. When it is necessary to improve the heat dissipation effect of the chassis, the fan 10 can be turned on. The operation of fan 10 can accelerate the circulation speed of the surrounding air, thereby facilitating heat dissipation of the chassis.
[0053] When it is necessary to clean the dust adhering to the surface of the filter screen 3, the motor 801 can be started. The operation of the motor 801 can drive the reciprocating screw 802 to rotate, which in turn drives the rack 803 to move, then drives the gear 804 to rotate, and drives the rotating shaft 5 to rotate, which in turn drives the mounting plate 805 and the cleaning brush 806 to rotate, so that the cleaning brush 806 can clean the dust adhering to the surface of the filter screen 3 more thoroughly. After cleaning is completed, the motor 801 can be turned off.
[0054] When the cleaning brush 806 wears out after prolonged use, it needs to be replaced. The user can replace it by rotating the threaded rod 902. As the threaded rod 902 rotates, it moves the movable seat 903 away from the cleaning brush 806. The movement of the movable seat 903 then pulls the pull plate 908, which in turn moves the movable block 909, causing the locking block 906 to move out of the locking groove 907. At this point, the positioning block 905 is no longer locked or limited, and the cleaning brush can be replaced. To install the cleaning brush 806, simply place the positioning block 905 on the mounting plate 805 into the positioning groove 904, then rotate the threaded rod 902 in the opposite direction to make the movable seat 903 rotate in the opposite direction and push the locking block 906 to reset and move into the locking groove 907 to lock and limit the positioning block 905. This completes the installation of the mounting plate 805 and the cleaning brush 806, allowing for quick replacement of the cleaning brush 806.
[0055] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A chassis sheet metal part with self-cleaning ventilation holes, comprising a sheet metal part (1) and a rotating shaft (5), characterized in that: The side of the sheet metal part (1) is provided with a support (4), the support (4) is internally provided with a rotating assembly (8), and the rotating assembly (8) comprises a motor (801) mounted on the top of the support (4), an installation plate (805) arranged at one end of a rotating shaft (5) and a gear (804) sleeved on the outer wall of the rotating shaft (5), the output end of the motor (801) is connected with a reciprocating screw rod (802), the outer wall of the reciprocating screw rod (802) is sleeved with a rack (803), one side of the installation plate (805) is provided with a cleaning brush (806), the rotating shaft (5) is provided with a dismounting assembly (9), and the dismounting assembly (9) comprises a cavity (901) opened in the inner portion of the rotating shaft (5) and a positioning groove (904) opened in the top and bottom of the rotating shaft (5), two positioning grooves (904) are both placed with a positioning block (905), and the bottom of one positioning block (905) and the top of the other positioning block (905) are both provided with a locking groove (907), the inner portion of the cavity (901) is connected with a threaded rod (902) through a bearing, and the outer wall of the threaded rod (902) is sleeved with a movable seat (903), one side of the inner portion of the cavity (901) is provided with two sliding grooves (911), and the inner portion of the sliding groove (911) is provided with a sliding block (910), one side of the sliding block (910) is provided with a movable block (909), and the movable block (909) and the movable seat (903) are rotatably connected with a pull plate (908), and the movable block (909) is provided with a locking block (906) extending into the locking groove (907).
2. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. The rotating assembly (8) further comprises a guide rod (807) mounted in the support (4), and the guide rod (807) penetrates through the rack (803).
3. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. The rack (803) is engaged with the gear (804), and the bottom end of the reciprocating screw rod (802) is connected with the support (4) through a bearing.
4. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. One end of the threaded rod (902) penetrates to the outside of the rotating shaft (5) and is connected with a knob, and the movable seat (903) is threadedly connected with the threaded rod (902).
5. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. The side of the sheet metal part (1) is further provided with a heat dissipation hole (2), and the inner portion of the heat dissipation hole (2) is provided with a filter screen (3).
6. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. The inner portion of the support (4) is provided with an installation rod (6) above and below, and a bearing seat (7) is mounted between the two installation rods (6), and the bearing seat (7) is connected with the rotating shaft (5) through a bearing.
7. The case panel of claim 5, wherein the case panel is provided with a self-cleaning function. One side of the cleaning brush (806) is attached to the filter screen (3), and the length of the cleaning brush (806) is greater than the diameter of the filter screen (3).
8. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. One side of the positioning block (905) is connected with the installation plate (805), and the installation plate (805) and the cleaning brush (806) are detachably connected with the rotating shaft (5) through the positioning block (905).
9. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. The locking block (906) is matched with the locking groove (907), and the locking block (906) and the movable block (909) are slidably connected with the sliding block (910) and the sliding groove (911).
10. The case panel of claim 1, wherein the case panel is provided with a self-cleaning function. One side of the support (4) is provided with a fan (10).
Citation Information
Patent Citations
Case sheet metal part with heat dissipation holes having self-cleaning function
CN216873501U