Brushless electric fan
By introducing height adjustment and water-cooled humidification components into the brushless electric fan, the problem of dry skin and unadjustable air supply height in the dry environment is solved, and flexible height adjustment and uniform humidification and cooling are achieved.
Patent Information
- Application Number
- CN202422566421.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-23
AI Technical Summary
When used in dry environments, the existing brushless electric fans have dry skin and the air supply height cannot be adjusted, resulting in discomfort in use and limited air supply range.
The height adjustment component and the water-cooled humidification component are adopted to adjust the fan height by driving the worm and worm gear structure through the motor, the rotating component expands the air supply range, and the air humidity is increased through the water-cooled humidification component.
It realizes flexible adjustment of fan height, expands the air supply range, increases air humidity, improves the comfort of use, and avoids dry skin and dry mouth and tongue problems.
Smart Images
Figure CN223190661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fans, in particular to a brushless electric fan. Background Art
[0002] A brushless electric fan is a fan that uses a brushless DC (BLDC) motor as its drive system. Compared to traditional brushed motor fans, brushless motor fans have significant advantages in many aspects. The working principle of this device is similar to that of brushed motor fans, both of which use an electric motor to convert electrical energy into mechanical energy to drive the fan rotation. However, brushless motor fans use electronic commutation technology to replace the traditional mechanical commutator and brushes, thereby eliminating the additional losses caused by friction and wear. This design not only improves energy conversion efficiency, but also makes the fan more stable and reliable during operation. The existing technology has the following problems:
[0003] When using existing brushless electric fans, the air humidity is low in a dry environment. If an electric fan is used to blow against the skin for a long time, the skin will become very dry, resulting in poor skin and general cooling effect. In addition, since people of different heights or sitting postures have different requirements for the fan's air supply height, the fan needs to be height-adjusted, but the existing device cannot adjust the fan's height, resulting in users being unable to easily adjust the fan to the position that best suits the current usage scenario. At the same time, the existing device cannot be raised or lowered, resulting in the device occupying a large space. The existing device has a small air supply range and cannot cover multiple corners in the room, resulting in the device having weak adaptability. Utility Model Content
[0004] The utility model provides a brushless electric fan to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0006] A brushless electric fan comprises a box body, the four corners of the bottom of the box body are fixedly connected to legs, the bottoms of the four legs are fixedly connected to universal wheels, a height adjustment component is provided on the top of the box body, the top of the height adjustment component is fixedly connected to a connecting frame, the front side of the connecting frame is fixedly connected to a fan cover, a brushless DC motor is fixedly connected to the rear inner wall of the connecting frame, the output end of the brushless DC motor passes through the interior of the fan cover and is fixedly connected to fan blades, a heat dissipation hole is provided at the bottom of the outer wall of the connecting frame, and a rotating component and a water-cooled humidifying component are provided inside the box body.
[0007] A further improvement of the technical solution of the present utility model is that: the height adjustment assembly includes a support rod, the bottom of the support rod is rotatably connected to the box body, and convex strips are provided on the front and rear sides of the outer wall of the support rod. The outer wall of the support rod is slidably connected to the hollow lifting rod through the provided convex strips, and the top of the hollow lifting rod is fixedly connected to the connecting frame, and the upper part of the outer wall of the hollow lifting rod is fixedly connected to the fixing frame, and the left side wall of the fixing frame is fixedly connected to motor 1, and the output end of motor 1 passes through the interior of the fixing frame and is fixedly connected to a worm, and the end of the worm away from motor 1 is rotatably connected to the right inner wall of the fixing frame, and the front side of the worm is meshed with a worm gear.
[0008] A further improvement of the technical solution of the present utility model is that: the bottom of the worm gear is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is rotatably connected to a fixed block fixedly connected to the inner wall of the hollow lifting rod, the bottom of the rotating shaft passes through the bottom wall of the fixed block and is fixedly connected to a screw, the outer wall of the screw is threadedly connected to a nut, and the outer wall of the nut is fixedly connected to the top of the support rod.
[0009] A further improvement of the technical solution of the present utility model is that the rotating assembly includes motor 2, the output end of motor 2 is fixedly connected to bevel gear 1, the top of bevel gear 1 is meshedly connected to bevel gear 2, and the bottom of the support rod passes through the interior of the box and is fixedly connected to bevel gear 2.
[0010] A further improvement of the technical solution of the present utility model is that: the water-cooled humidifying assembly includes a refrigerator, the bottom of the refrigerator is fixedly connected to the inner bottom wall of the box body, the bottom of the motor 2 is fixedly connected to the top of the refrigerator, the right side wall of the refrigerator is fixedly connected to a water injection pipe that runs through the right outer wall of the box body, the top of the refrigerator is fixedly connected to a water pump, the front water inlet of the water pump is fixedly connected to the water inlet pipe that runs through the inside of the refrigerator, the top water outlet of the water pump is fixedly connected to a telescopic water guide pipe 1 that runs through the outer top wall of the box body, the end of the telescopic water guide pipe 1 away from the water pump is fixedly connected to a water tank that is fixedly connected to the rear inner wall of the fan outer cover, the front side wall of the water tank is fixedly connected to several water mist nozzles distributed equidistantly on the left and right, the bottom of the water tank is fixedly connected to a condenser pipe, the end of the condenser pipe away from the water tank is fixedly connected to the telescopic water guide pipe 2, and the end of the telescopic water guide pipe 2 away from the condenser pipe runs through the interior of the box body and is fixedly connected to the refrigerator.
[0011] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:
[0012] 1. The utility model provides a brushless electric fan, which is provided with a height adjustment component. The motor drives the worm and worm gear to rotate, and the rotating shaft at the bottom of the worm gear rotates accordingly, which in turn drives the screw to rotate, so that the hollow lifting rod moves up and down along the support rod, thereby realizing the height adjustment of the connecting frame and the fan components thereon, so that the user can easily adjust the fan to the position that best suits the current usage scenario, and adapt to the requirements of people of different heights or sitting postures for the air supply height of the fan. When not in use or when space needs to be saved, the user can adjust the fan to the lowest height, thereby reducing the space it occupies. The provided and rotating component causes the entire fan upper structure to rotate back and forth 180°, thereby expanding the air supply range, so that the entire space can feel comfortable air flow, and improve the comfort of use.
[0013] 2. The utility model provides a brushless electric fan with a water-cooling humidifying component, which cools the water by turning on the refrigerator. At the same time, the water pump draws cooling water from the refrigerator through the water inlet pipe and transports it to the water tank through the telescopic water guide pipe 1. Several water mist nozzles on the front side wall of the water tank atomize and spray the cooling water, thereby increasing the humidity of the air and lowering the temperature of the air. The cooled water is further cooled when flowing through the condenser at the bottom of the water tank, and then flows back to the refrigerator through the telescopic water guide pipe 2, thereby realizing water recycling. At the same time, the brushless DC motor drives the fan blades to rotate at high speed in the fan outer cover, and the air flow generated accelerates the diffusion of the water mist, so that the humidification and cooling effect is more evenly distributed in the entire space, thereby increasing the air humidity in a dry environment and avoiding problems such as dry mouth and dry skin caused by long-term use of air conditioners or fans. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the local structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the height adjustment component structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the internal structure of the box of the present utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the water-cooling and humidifying component of the present invention.
[0019] In the figure: 101, box body; 102, support legs; 103, universal wheels; 104, fan cover; 105, fan blades; 106, connecting frame; 107, brushless DC motor; 108, heat dissipation holes; 2, height adjustment component; 201, support rod; 202, hollow lifting rod; 203, fixed frame; 204, motor 1; 205, worm; 206, worm gear; 207, rotating shaft; 208, Fixed block; 209, screw; 210, nut; 3, rotating assembly; 301, motor 2; 302, bevel gear 1; 303, bevel gear 2; 4, water-cooled humidifying assembly; 401, refrigerator; 402, water injection pipe; 403, water pump; 404, telescopic water pipe 1; 405, telescopic water pipe 2; 406, water tank; 407, water mist nozzle; 408, condenser; 409, water inlet pipe. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:
[0021] like Figure 1 、 Figure 2 As shown, the utility model provides a brushless electric fan, including a box body 101, the four corners of the bottom of the box body 101 are fixedly connected to support legs 102, the bottoms of the four support legs 102 are fixedly connected to universal wheels 103, a height adjustment component 2 is provided on the top of the box body 101, the top of the height adjustment component 2 is fixedly connected to a connecting frame 106, the front side of the connecting frame 106 is fixedly connected to a fan cover 104, the rear inner wall of the connecting frame 106 is fixedly connected to a brushless DC motor 107, the output end of the brushless DC motor 107 passes through the interior of the fan cover 104 and is fixedly connected to a fan blade 105, a heat dissipation hole 108 is provided at the bottom of the outer wall of the connecting frame 106, and a rotating component 3 and a water-cooled humidifying component 4 are provided inside the box body 101.
[0022] By pushing the box 101, with the help of the legs 102 at the four corners of its bottom and the universal wheels 103 at the bottom of the legs 102, the fan can be easily moved to the desired position and fixed. The heat generated by the brushless DC motor 107 during operation is dissipated through the heat dissipation holes 108 at the bottom of the outer wall of the connecting frame 106, ensuring the normal operation of the motor.
[0023] like Figure 3As shown, the height adjustment component 2 includes a support rod 201, the bottom of the support rod 201 is rotatably connected to the box body 101, and convex strips are provided on the front and rear sides of the outer wall of the support rod 201. The outer wall of the support rod 201 is slidably connected to the hollow lifting rod 202 through the provided convex strips, and the top of the hollow lifting rod 202 is fixedly connected to the connecting frame 106. The upper part of the outer wall of the hollow lifting rod 202 is fixedly connected to the fixed frame 203, and the left side wall of the fixed frame 203 is fixedly connected to the motor 1 204. The output end of the motor 1 204 passes through the interior of the fixed frame 203 and is fixedly connected to the worm 205. The end of the worm 205 away from the motor 1 204 is rotatably connected to the right inner wall of the fixed frame 203, and the front side of the worm 205 is meshed with the worm gear 206.
[0024] like Figure 3 As shown, the bottom of the worm gear 206 is fixedly connected to the rotating shaft 207, and the outer wall of the rotating shaft 207 is rotatably connected to the fixed block 208 fixedly connected to the inner wall of the hollow lifting rod 202. The bottom of the rotating shaft 207 passes through the bottom wall of the fixed block 208 and is fixedly connected to the screw 209. The outer wall of the screw 209 is threadedly connected to the nut 210, and the outer wall of the nut 210 is fixedly connected to the top of the support rod 201.
[0025] When the height of the fan needs to be adjusted, the motor 204 on the left side wall of the fixed frame 203 is started, and the motor 204 drives the worm 205 to rotate, and the worm 205 drives the worm gear 206 engaged with it to rotate, and the rotating shaft 207 at the bottom of the worm gear 206 rotates accordingly, thereby driving the screw 209 to rotate. Since the screw 209 is threadedly connected to the nut 210, and the nut 210 is fixed to the top of the support rod 201, the convex strip on the outer wall of the support rod 201 is slidably connected to the hollow lifting rod 202 to limit its rotation, so that the hollow lifting rod 202 moves up and down along the support rod 201, thereby realizing the height adjustment of the connecting frame 106 and the fan components thereon, so that the user can easily adjust the fan to the position most suitable for the current usage scenario, adapting to the requirements of the fan's air supply height for people of different heights or sitting postures. When not in use or needing to save space, the user can adjust the fan to the lowest height, thereby reducing the space it occupies.
[0026] like Figure 4 As shown, the rotating component 3 includes a motor 2 301, the output end of the motor 2 301 is fixedly connected to a bevel gear 1 302, the top of the bevel gear 1 302 is meshedly connected to a bevel gear 2 303, and the bottom of the support rod 201 passes through the interior of the box 101 and is fixedly connected to the bevel gear 2 303.
[0027] When the blowing direction of the fan needs to be adjusted, the motor 2 301 is started, and the output end of the motor 2 301 drives the bevel gear 1 302 to rotate, and the bevel gear 1 302 drives the bevel gear 2 303 engaged with it to rotate, thereby causing the support rod 201 to rotate, driving the entire fan upper structure to rotate 180° back and forth, thereby expanding the air supply range, allowing the entire space to feel comfortable air flow, and improving the comfort of use.
[0028] like Figure 4 、 Figure 5 As shown, the water-cooled humidifying component 4 includes a refrigerator 401, the bottom of the refrigerator 401 is fixedly connected to the inner bottom wall of the box body 101, the bottom of the motor 2 301 is fixedly connected to the top of the refrigerator 401, and the right side wall of the refrigerator 401 is fixedly connected with a water injection pipe 402 that runs through the right outer wall of the box body 101. The water injection pipe 402 is provided to facilitate adding water to the refrigerator 401. The top of the refrigerator 401 is fixedly connected with a water pump 403, the front water inlet of the water pump 403 is fixedly connected with a water inlet pipe 409 that runs through the inside of the refrigerator 401, and the top water outlet of the water pump 403 is fixedly connected with A telescopic water pipe 404 is provided which extends through the outer top wall of the box body 101, and the end of the telescopic water pipe 404 away from the water pump 403 is fixedly connected to a water tank 406 which is fixedly connected to the inner wall of the rear side of the fan cover 104, and the front side wall of the water tank 406 is fixedly connected to a plurality of water mist nozzles 407 which are evenly distributed on the left and right sides, and the bottom of the water tank 406 is fixedly connected to a condenser 408, and the end of the condenser 408 away from the water tank 406 is fixedly connected to a telescopic water pipe 2 405, and the end of the telescopic water pipe 2 405 away from the condenser 408 extends through the interior of the box body 101 and is fixedly connected to the refrigerator 401.
[0029] In a hot and dry environment, when the air needs to be humidified and cooled, the refrigerator 401 is turned on to cool the water, and the water pump 403 is started at the same time. The water pump 403 draws cooling water from the refrigerator 401 through the water inlet pipe 409 and transports it to the water tank 406 through the telescopic water pipe 1 404. Several water mist nozzles 407 on the front side wall of the water tank 406 atomize and spray the cooling water, thereby increasing the humidity of the air and lowering the temperature of the air. The cooled water is further cooled when flowing through the condenser 408 at the bottom of the water tank 406, and then flows back to the refrigerator 401 through the telescopic water pipe 2 405, realizing water recycling. At the same time, the brushless DC motor 107 drives the fan blades 105 to rotate at high speed in the fan housing 104. The airflow generated accelerates the diffusion of the water mist, so that the humidification and cooling effect is more evenly distributed in the entire space, increasing the air humidity in a dry environment, and avoiding problems such as dry mouth and dry skin caused by long-term use of air conditioners or fans.
[0030] It should be noted that the water mist nozzle 407, the refrigerator 401 and the brushless DC motor 107 are all existing technologies and will not be explained in detail here.
[0031] The following is a detailed description of the working principle of the brushless electric fan.
[0032] like Figure 1-5 As shown, when the height of the fan needs to be adjusted, the motor 204 on the left side wall of the fixed frame 203 is started, and the motor 204 drives the worm 205 to rotate, and the worm 205 drives the worm gear 206 engaged with it to rotate, and the rotating shaft 207 at the bottom of the worm gear 206 rotates accordingly, thereby driving the screw 209 to rotate. Since the screw 209 is threadedly connected to the nut 210, and the nut 210 is fixed to the top of the support rod 201, the convex strip on the outer wall of the support rod 201 is slidably connected to the hollow lifting rod 202 to limit its rotation, so that the hollow lifting rod 202 moves up and down along the support rod 201, thereby realizing the height adjustment of the connecting frame 106 and the fan components thereon, so that the user can easily adjust the fan to the position most suitable for the current usage scenario, adapting to the requirements of the fan's air supply height for people of different heights or sitting postures. When not in use or needing to save space, the user can adjust the fan to the lowest height, thereby reducing the space it occupies.
[0033] When the blowing direction of the fan needs to be adjusted, the motor 2 301 is started, and the output end of the motor 2 301 drives the bevel gear 1 302 to rotate, and the bevel gear 1 302 drives the bevel gear 2 303 engaged with it to rotate, thereby causing the support rod 201 to rotate, driving the entire fan upper structure to rotate 180° back and forth, thereby expanding the air supply range, allowing the entire space to feel comfortable air flow, and improving the comfort of use.
[0034] In a hot and dry environment, when the air needs to be humidified and cooled, the refrigerator 401 is turned on to cool the water, and the water pump 403 is started at the same time. The water pump 403 draws cooling water from the refrigerator 401 through the water inlet pipe 409 and transports it to the water tank 406 through the telescopic water pipe 1 404. Several water mist nozzles 407 on the front side wall of the water tank 406 atomize and spray the cooling water, thereby increasing the humidity of the air and lowering the temperature of the air. The cooled water is further cooled when flowing through the condenser 408 at the bottom of the water tank 406, and then flows back to the refrigerator 401 through the telescopic water pipe 2 405, realizing water recycling. At the same time, the brushless DC motor 107 drives the fan blades 105 to rotate at high speed in the fan housing 104. The airflow generated accelerates the diffusion of the water mist, so that the humidification and cooling effect is more evenly distributed in the entire space, increasing the air humidity in a dry environment, and avoiding problems such as dry mouth and dry skin caused by long-term use of air conditioners or fans.
[0035] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A brushless electric fan, comprising a housing (101), characterized in that: The four corners of the bottom of the box (101) are fixedly connected to support legs (102), and the bottoms of the four support legs (102) are fixedly connected to universal wheels (103). A height adjustment component (2) is provided on the top of the box (101), and a connection frame (106) is fixedly connected to the top of the height adjustment component (2). The front side of the connection frame (106) is fixedly connected to a fan cover (104). The rear inner wall of the connection frame (106) is fixedly connected to a brushless DC motor (107). The output end of the brushless DC motor (107) passes through the interior of the fan cover (104) and is fixedly connected to a fan blade (105). A heat dissipation hole (108) is provided at the bottom of the outer wall of the connection frame (106). A rotating component (3) and a water-cooling humidifying component (4) are provided inside the box (101).
2. A brushless electric fan according to claim 1, characterized in that: The height adjustment assembly (2) comprises a support rod (201), the bottom of the support rod (201) is rotatably connected to the box body (101), the outer wall of the support rod (201) is provided with convex strips on both the front and rear sides, the outer wall of the support rod (201) is slidably connected to a hollow lifting rod (202) through the provided convex strips, the top of the hollow lifting rod (202) is fixedly connected to the connecting frame (106), the upper part of the outer wall of the hollow lifting rod (202) is fixedly connected to a fixing frame (203), the left side wall of the fixing frame (203) is fixedly connected to a motor 1 (204), the output end of the motor 1 (204) passes through the interior of the fixing frame (203) and is fixedly connected to a worm (205), the end of the worm (205) away from the motor 1 (204) is rotatably connected to the right inner wall of the fixing frame (203), and the front side of the worm (205) is meshedly connected to a worm wheel (206).
3. A brushless electric fan according to claim 2, characterized in that: The bottom of the worm gear (206) is fixedly connected to a rotating shaft (207), the outer wall of the rotating shaft (207) is rotatably connected to a fixed block (208) fixedly connected to the inner wall of the hollow lifting rod (202), the bottom of the rotating shaft (207) passes through the bottom wall of the fixed block (208) and is fixedly connected to a screw (209), the outer wall of the screw (209) is threadedly connected to a nut (210), and the outer wall of the nut (210) is fixedly connected to the top of the support rod (201).
4. A brushless electric fan according to claim 3, characterized in that: The rotating assembly (3) includes a second motor (301), the output end of the second motor (301) is fixedly connected to a first bevel gear (302), the top of the first bevel gear (302) is meshedly connected to a second bevel gear (303), and the bottom of the support rod (201) passes through the interior of the box (101) and is fixedly connected to the second bevel gear (303).
5. The brushless electric fan according to claim 4, characterized in that: The water-cooling humidifying component (4) includes a refrigerator (401), the bottom of the refrigerator (401) is fixedly connected to the inner bottom wall of the box (101), the bottom of the motor 2 (301) is fixedly connected to the top of the refrigerator (401), the right side wall of the refrigerator (401) is fixedly connected to a water injection pipe (402) that runs through the right outer wall of the box (101), the top of the refrigerator (401) is fixedly connected to a water pump (403), the front water inlet of the water pump (403) is fixedly connected to a water inlet pipe (409) that runs through the inside of the refrigerator (401), and the top water outlet of the water pump (403) is fixedly connected to a water outlet pipe (409) that runs through the outer top wall of the box (101). A telescopic water pipe (404) is provided, wherein one end of the telescopic water pipe (404) away from the water pump (403) is fixedly connected to a water tank (406) fixedly connected to the rear inner wall of the fan cover (104), a front side wall of the water tank (406) is fixedly connected to a plurality of water mist nozzles (407) equidistantly distributed on the left and right sides, a condenser (408) is fixedly connected to the bottom of the water tank (406), and one end of the condenser (408) away from the water tank (406) is fixedly connected to a telescopic water pipe (405), and one end of the telescopic water pipe (405) away from the condenser (408) passes through the interior of the box body (101) and is fixedly connected to the refrigerator (401).