Power supply module with noise reduction structure
By adopting a double-layer noise reduction structure and an automatic air circulation system in the power supply module, the problem of water vapor adsorption caused by heat and air in the sealed environment is solved, which significantly improves the noise reduction effect and heat dissipation efficiency, and ensures the reliability of the equipment.
Patent Information
- Application Number
- CN202421284111.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When used in a sealed environment, existing power modules are prone to absorb water vapor and water droplets due to heat encountering external air, resulting in increased noise and damage to the equipment.
A power module with a noise reduction structure is designed, and a double-layer noise reduction structure with a soundproof layer and sound insulation cotton inside the shell is designed. The worm and worm gear are driven by the motor to drive the driving rod and rotating plate to rotate in the ventilation hole to ensure air circulation to avoid liquefaction and adsorption. A filter mechanism and an automatic cleaning mechanism are set up to keep the air clean.
The double-layer noise reduction structure significantly improves the noise reduction effect of the equipment, and by keeping the air circulating and clean, the damage caused by adsorption of water vapor and water droplets is avoided, and the heat dissipation efficiency and reliability of the equipment are improved.
Smart Images
Figure CN222897446U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power modules, in particular to a power module with a noise reduction structure. Background Art
[0002] The power module can process the input voltage and output it to the powered device for powering the powered device. For example, in a battery management system, the power module receives the DC power output by the battery, steps down the DC power, and then outputs it to other working modules in the power management system for powering.
[0003] During the operation of some electrical appliances, the power module may generate certain noise. In order to ensure the working environment and avoid affecting the staff, a noise reduction structure will be set up to reduce the noise of the power module and control it from the sound source.
[0004] However, in the prior art, the noise reduction structure is in the form of a cover or a shell that wraps the power module. Since the environment in which the power module is located is too sealed, heat is generated when it meets the outside air, and it will liquefy to produce some water vapor and water droplets that are adsorbed on the power module. Over time, it will cause an impact or even damage it. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a power supply module with a noise reduction structure.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a power module with a noise reduction structure, comprising a shell, a power module body is fixed to the inner bottom end of the shell, and a sound-absorbing layer is arranged on the inner wall of the shell, and sound insulation cotton is arranged on the outer wall of the sound-absorbing layer, and an adjustment mechanism is arranged on one side of the power module body;
[0007] The adjusting mechanism includes a motor, which is fixedly mounted on one side of the inner wall of the shell, and a worm is connected to the power output end of the motor, a worm is connected to the outer wall of the worm, and a driving rod is passed through the inside of the worm wheel, and rotating plates are fixed to the outer walls of both ends of the driving rod, ventilation holes are opened at the positions of the rotating plates on both sides of the outer wall of the shell, and baffles are fixed to the inner walls of the ventilation holes, and a sound-absorbing layer with a honeycomb structure is provided inside the shell to continuously eject and consume sound waves, thereby reducing the generated noise, and further absorb the transmitted noise with the help of sound insulation cotton, and the noise reduction effect of the equipment is greatly improved through double-layer noise reduction, and the shell facilitates the internal air to keep circulating through the ventilation holes to avoid accumulation, which causes cold and hot to meet and liquefy, and be absorbed on the outer wall of the power module body to cause an impact.
[0008] As a further description of the above technical solution: the rotating plate forms a rotating structure between the driving rod and the ventilation hole, and the rotating plate is tightly fitted with the baffle. When heat dissipation is not required, the rotating plate and the baffle are fitted and staggered, thereby closing the ventilation hole to maintain the airtightness of the shell and achieve a noise reduction effect. When the heat is too high, the worm is driven by the motor to drive the driving rod, and the rotating plate rotates inside the ventilation hole under the drive of the driving rod, thereby allowing air circulation to improve heat dissipation efficiency.
[0009] As a further description of the above technical solution: fan blades are fixed to the outer wall of the driving rod, and cooling fins are embedded on the upper sides of the inner wall of the outer shell. The cooling of the refrigeration fins reduces the internal temperature, and the fan blades are driven to rotate when the driving rod rotates, thereby further improving the circulation of air inside the outer shell and improving the blending of cold air and hot air.
[0010] As a further description of the above technical solution: filtering mechanisms are arranged on both sides of the outer wall of the shell, and the filtering mechanisms include a metal frame, which is fixedly installed at the lower sides of the outer wall of the shell, and the outer wall of the metal frame is embedded with a filter screen, and a metal frame is arranged on one side of the ventilation hole and fixed to the shell by bolts. The metal frame passes through the embedded filter screen to prevent dust and impurities from entering during air circulation, causing adsorption on the power module body and affecting heat dissipation.
[0011] As a further description of the above technical solution: the filtering mechanism also includes an extension rod, which is fixed to one end of the driving rod passing through the outer shell, and a scraper is fixed to the outer wall of the end of the extension rod passing through the filter net, and a brush is installed on one side of the scraper. When the driving rod rotates, it drives the extension rod to rotate, so that the scraper drives the brush to scrape off dust and impurities adsorbed by the filter net to avoid blockage and affect heat dissipation.
[0012] As a further description of the above technical solution: the scraper forms a rotating structure between the extension rod and the filter screen, and the extension rod forms a rotating structure between the extension rod and the filter screen through the driving rod following the transmission of the worm and worm gear to drive the extension rod to rotate, thereby achieving automatic cleaning and avoiding the trouble of manual cleaning.
[0013] As a further description of the above technical solution: the scraper blade is detachably connected to the brush by bolts, and the brush fits tightly against the filter screen. The scraper blade is detachably connected to the brush by bolts, so that the brush can be replaced to avoid problems with the brush due to long-term use.
[0014] The utility model has the following beneficial effects:
[0015] The utility model designs a power module with a noise reduction structure. The worm and the worm wheel are driven by the motor, so that the driving rod drives the rotating plates on both sides to rotate in the ventilation holes to allow air to circulate, thereby preventing the cold air and hot air generated by the refrigeration plate from merging and liquefying and adsorbing the power module body to cause damage. At the same time, the driving rod drives the fan blades to further increase the speed of air circulation and improve the heat dissipation effect. The outer shell is provided with a double-layer noise reduction structure of a sound-absorbing layer and sound-insulating cotton, which effectively improves the noise reduction effect.
[0016] The utility model designs a power module with a noise reduction structure. The filter screen is fixed by a metal frame at the position corresponding to the ventilation hole, thereby effectively filtering dust and impurities in the air to avoid them entering and adsorbing internal components, thereby affecting the heat dissipation effect. The extension rod is driven by the driving rod to allow the scraper to drive the brush to rotate in contact with the filter screen, thereby scraping off the adsorbed dust and the like to avoid blockage that affects the air circulation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the housing of the utility model;
[0019] Figure 3 This is a schematic diagram of the installation structure of the rotating plate of the utility model;
[0020] Figure 4 for Figure 2 The enlarged view of point A in the middle;
[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the shell of the utility model.
[0022] Legend:
[0023] 1. Shell; 2. Power module body; 3. Sound-absorbing layer; 4. Sound-proof cotton; 5. Adjustment mechanism; 501. Motor; 502. Worm; 503. Worm wheel; 504. Drive rod; 505. Rotating plate; 506. Ventilation hole; 507. Baffle; 6. Fan blade; 7. Refrigeration plate; 8. Filter mechanism; 801. Metal frame; 802. Filter net; 803. Extension rod; 804. Scraper; 805. Brush. DETAILED DESCRIPTION
[0024] Reference Figure 1-5The utility model provides a power module with a noise reduction structure: comprising a shell 1, a power module body 2 is fixed to the inner bottom end of the shell 1, a sound-absorbing layer 3 is arranged on the inner wall of the shell 1, a sound-absorbing cotton 4 is arranged on the outer wall of the sound-absorbing layer 3, and an adjustment mechanism 5 is arranged on one side of the power module body 2; the adjustment mechanism 5 comprises a motor 501, the motor 501 is fixedly mounted on one side of the inner wall of the shell 1, a worm 502 is connected to the power output end of the motor 501, a worm wheel 503 is connected to the outer wall of the worm 502, a driving rod 504 is passed through the inside of the worm wheel 503, and the outer walls of both ends of the driving rod 504 are fixed with Rotating plate 505, ventilation holes 506 are opened on both sides of the outer wall of the shell 1 corresponding to the position of the rotating plate 505, and baffles 507 are fixed on the inner walls of the ventilation holes 506. A sound-absorbing layer 3 with a honeycomb structure is provided inside the shell 1 to continuously eject and consume sound waves, thereby reducing the generated noise, and cooperate with the sound insulation cotton 4 to further absorb the propagated noise. The noise reduction effect of the equipment is greatly improved through double-layer noise reduction. The outer shell 1 has ventilation holes 506 to keep the internal air circulating to avoid accumulation, which causes cold and hot to meet and liquefy, and be absorbed on the outer wall of the power module body 2 to cause an impact.
[0025] As a further implementation scheme of the above technical scheme: the rotating plate 505 forms a rotating structure between the driving rod 504 and the ventilation hole 506, and the rotating plate 505 is tightly fitted with the baffle 507. When heat dissipation is not required, the rotating plate 505 and the baffle 507 are fitted and staggered, so that the ventilation hole 506 can be closed to maintain the airtightness of the shell 1 and play a noise reduction effect. When the heat is too high, the motor 501 drives the worm 502 so that the worm gear 503 drives the driving rod 504. Driven by the driving rod 504, the rotating plate 505 rotates inside the ventilation hole 506, so that air circulation improves the heat dissipation efficiency.
[0026] As a further implementation scheme of the above technical scheme: the outer wall of the driving rod 504 is fixed with a fan blade 6, and the upper sides of the inner wall of the shell 1 are embedded with cooling fins 7, which cooperate with the cooling of the cooling fins 7 to reduce the internal temperature. When the driving rod 504 rotates, the fan blades 6 are driven to rotate, thereby further improving the circulation of air inside the shell 1 and improving the blending of cold air and hot air.
[0027] During specific implementation, the shell 1 has a double-layer noise reduction effect through the sound-absorbing layer 3 and the sound-proof cotton 4. Under normal circumstances, the baffle 507 and the rotating plate 505 are attached and staggered to keep the shell 1 airtight. When the internal heat is overheated, the refrigeration plate 7 is used to reduce the internal temperature. The hot end is located on the outer wall of the shell 1 to facilitate heat dissipation. At the same time, the motor 501 drives the worm 502, thereby driving the worm gear 503 to drive the driving rod 504 to drive the two rotating plates 505 to rotate. The rotating plates 505 have different shapes, one group draws air and the other group supplies air, thereby accelerating the air circulation inside the shell 1 for heat dissipation, and cooperating with the driving rod 504 to drive the fan blades 6 to rotate, further improving the heat dissipation efficiency.
[0028] As a further implementation scheme of the above technical scheme: filtering mechanisms 8 are arranged on both sides of the outer wall of the shell 1, and the filtering mechanisms 8 include a metal frame 801, which is fixedly installed at the lower sides of the outer wall of the shell 1, and the outer wall of the metal frame 801 is embedded with a filter screen 802. The metal frame 801 is arranged on one side of the ventilation hole 506 and is fixed to the shell 1 by bolts. The metal frame 801 passes through the embedded filter screen 802 to prevent dust and impurities from entering during air circulation, causing adsorption to the power module body 2 and affecting heat dissipation.
[0029] As a further implementation scheme of the above technical scheme: the filtering mechanism 8 also includes an extension rod 803, which is fixed to one end of the driving rod 504 that passes through the outer shell 1, and a scraper 804 is fixed to the outer wall of one end of the extension rod 803 that passes through the filter screen 802, and a brush 805 is installed on one side of the scraper 804. When the driving rod 504 rotates, it drives the extension rod 803 to rotate, so that the scraper 804 drives the brush 805 to scrape off dust and impurities adsorbed by the filter screen 802 to avoid blockage and affect heat dissipation.
[0030] As a further implementation scheme of the above technical scheme: the scraper 804 forms a rotating structure between the extension rod 803 and the filter screen 802, and the extension rod 803 forms a rotating structure between the extension rod 803 and the filter screen 802 through the driving rod 504. The driving rod 504 follows the transmission of the worm 502 and the worm wheel 503 to drive the extension rod 803 to rotate, thereby achieving automatic cleaning and avoiding the trouble of manual cleaning.
[0031] As a further implementation scheme of the above technical scheme: the scraper 804 is detachably connected to the brush 805 by bolts, the brush 805 is tightly fitted to the filter 802, and the scraper 804 is detachably connected to the brush 805 by bolts, so that the brush 805 can be replaced to avoid problems with the brush 805 due to long-term use.
[0032] During specific implementation, the metal frame 801 is embedded with the filter 802 to prevent external dust from entering and affecting the internal components. At the same time, the extension rod 803 drives the scraper 804 to allow the brush 805 to rotate in contact with the filter 802, thereby scraping off the adsorbed dust and avoiding blockage that affects air circulation and heat dissipation.
[0033] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 power module with a noise reduction structure, characterized in that: The invention comprises a shell (1), a power module body (2) is fixed to the inner bottom end of the shell (1), a sound-absorbing layer (3) is arranged on the inner wall of the shell (1), sound-absorbing cotton (4) is arranged on the outer wall of the sound-absorbing layer (3), and an adjustment mechanism (5) is arranged on one side of the power module body (2); The regulating mechanism (5) comprises a motor (501), wherein the motor (501) is fixedly mounted on one side of the inner wall of the housing (1), and a worm (502) is connected to the power output end of the motor (501), a worm gear (503) is connected to the outer wall of the worm gear (502), and a driving rod (504) is inserted through the interior of the worm gear (503), and rotating plates (505) are fixed to the outer walls at both ends of the driving rod (504), and ventilation holes (506) are provided at positions corresponding to the rotating plates (505) on both sides of the outer wall of the housing (1), and baffles (507) are fixed to the inner walls of the ventilation holes (506).
2. The power module with a noise reduction structure according to claim 1, characterized in that: The rotating plate (505) forms a rotating structure through the driving rod (504) and the ventilation hole (506), and the rotating plate (505) and the baffle (507) are tightly fitted.
3. The power module with a noise reduction structure according to claim 1, characterized in that: The outer wall of the driving rod (504) is fixed with a fan blade (6), and cooling fins (7) are embedded on the upper sides of the inner wall of the outer shell (1).
4. The power module with a noise reduction structure according to claim 1, characterized in that: Filter mechanisms (8) are provided on both sides of the outer wall of the shell (1), and the filter mechanism (8) comprises a metal frame (801). The metal frame (801) is fixedly installed below both sides of the outer wall of the shell (1), and a filter screen (802) is embedded in the outer wall of the metal frame (801).
5. The power module with a noise reduction structure according to claim 4, characterized in that: The filtering mechanism (8) further comprises an extension rod (803), wherein the extension rod (803) is fixed to one end of the driving rod (504) passing through the housing (1), and a scraper (804) is fixed to the outer wall of one end of the extension rod (803) passing through the filter screen (802), and a brush (805) is installed on one side of the scraper (804).
6. The power module with a noise reduction structure according to claim 5, characterized in that: The scraper (804) forms a rotating structure with the filter screen (802) through the extension rod (803), and the extension rod (803) forms a rotating structure with the filter screen (802) through the drive rod (504).
7. The power module with a noise reduction structure according to claim 5, characterized in that: The scraper (804) is detachably connected to the brush (805) via bolts, and the brush (805) is tightly fitted to the filter screen (802).