High-rotating-speed brushless motor with heat dissipation function

Abstract

The utility model discloses a high-rotation-speed brushless motor with a heat dissipation function, and relates to the technical field of brushless motors. The brushless motor comprises a brushless motor body, a fan blade is rotationally connected to the middle of a mounting plate through a bearing, a rotating rod is arranged below the right side of the mounting plate, a lower conveying wheel, a left friction plate and a right friction plate are sequentially arranged outside the right side of the rotating rod from left to right, and elastic pieces are evenly fixed to the right wall of the right friction plate; an adjusting mechanism is arranged below the heat dissipation mechanism, a threaded rod is rotationally connected to the middle of the rotating plate through a bearing, a mounting frame is in threaded connection with the outer portion of the upper side of the threaded rod, a U-shaped plate is arranged outside the rotating plate, screws are arranged below the left side and the right side of the rotating plate, and threaded sleeves are in threaded connection with the outer portions of the screws. Starting resistance is reduced through cooperation of the left friction plate and the right friction plate, and the height and the angle can be conveniently adjusted through cooperation of the rotatable rotating plate, the threaded rod and the mounting frame.

Description

Technical Field

[0001] This utility model belongs to the field of brushless motor technology, and in particular relates to a high-speed brushless motor with heat dissipation function. Background Technology

[0002] High-speed brushless motors are a type of electric motor widely used in industry, automobiles, aerospace, and robotics. Compared to traditional brushed motors, brushless motors have no brushes or commutators, making them simpler in structure, more efficient, and longer in lifespan. However, due to their high speed, high-speed brushless motors generate a lot of heat during operation. Especially under high power output conditions, slow heat dissipation can lead to a high failure rate and even reduce their lifespan.

[0003] A search revealed that authorization announcement number CN214799141U, with an authorization announcement date of November 19, 2021, discloses a brushless motor with easy heat dissipation function. The invention includes a brushless motor with a base housing below it. A first bracket and a second bracket are fixedly connected to the upper surface of the base housing, both of which are fixedly connected to the brushless motor. A transmission mechanism is even located on one side of the brushless motor. A heat dissipation mechanism is located below the brushless motor and inside the base housing. The beneficial effects of this invention are: by setting a transmission mechanism, the invention can drive the fan blades in the heat dissipation mechanism to rotate when the brushless motor is working, thereby cooling the area near the stator end of the brushless motor. Furthermore, the higher the output power of the brushless motor, the faster the airflow from the fan blades, resulting in a better cooling effect. This invention can cool the area near the stator end of the brushless motor when it is working, preventing the brushless motor from affecting its normal operation due to excessive temperature.

[0004] Existing technology uses the power of a brushless motor to drive the fan blades to rotate, thereby generating airflow to cool the brushless motor. However, the rotational resistance of the brushless motor shaft is relatively large when it is running, which can easily lead to damage. In addition, existing technology makes it inconvenient to adjust the angle and height of the brushless motor during installation, making it inconvenient to use. Therefore, we provide a high-speed brushless motor with heat dissipation function to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-speed brushless motor with heat dissipation function. The starting resistance is reduced by the cooperation of the left and right friction plates, and the height and angle can be easily adjusted by the cooperation of the rotatable rotating plate, the threaded rod and the mounting bracket. This solves the problems of the high rotational resistance of the brushless motor shaft in the starting state, which is easy to cause damage, and the inconvenience of adjusting the angle and height of the brushless motor when installing it.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a high-speed brushless motor with heat dissipation function, including a brushless motor body. A heat dissipation mechanism is provided on the lower side of the brushless motor body. The heat dissipation mechanism includes a mounting plate located below the brushless motor body. A fan blade is rotatably connected to the middle position of the mounting plate via a bearing. A rotating rod is provided on the lower right side of the mounting plate. From left to right, a lower conveying wheel, a left friction plate, and a right friction plate are arranged on the outer right side of the rotating rod. Elastic elements are uniformly fixed on the right wall of the right friction plate.

[0008] Below the heat dissipation mechanism is an adjustment mechanism, which includes a rotating plate. A threaded rod is rotatably connected to the middle position of the rotating plate via a bearing. An external threaded bracket is connected to the upper side of the threaded rod. The mounting bracket is fixedly connected to the mounting plate. A U-shaped plate is provided on the outside of the rotating plate. Screws are provided on the lower left and right sides of the rotating plate. Threaded sleeves are connected to the external threads of the screws. Threaded sleeves are fixedly connected to the U-shaped plate.

[0009] The present invention is further configured such that a connecting plate is provided on the left side of the lower conveying wheel corresponding to the outside of the rotating rod, the connecting plate is fixedly connected to the mounting plate, and the rotating rod is rotatably connected to the connecting plate through a bearing.

[0010] The present invention is further configured such that an upper conveyor wheel is fixed above the lower conveyor wheel corresponding to the outside of the power output shaft in the brushless motor body, and a belt is provided on the outside of the upper conveyor wheel and the lower conveyor wheel, and the lower conveyor wheel is connected to the lower conveyor wheel via the belt for belt drive.

[0011] The present invention is further configured such that the left friction plate is fixedly connected to the lower conveying wheel, a circular plate is fixedly fixed to the right side of the elastic member corresponding to the outside of the rotating rod, a telescopic rod is provided inside the elastic member, and the two ends of the telescopic rod are respectively fixedly connected to the corresponding right friction plate and the circular plate.

[0012] The present invention is further configured such that a lower gear is fixed to the outside of the left end of the rotating rod, an upper gear is fixed to the rotating shaft of the fan blade, the upper gear meshes with the lower gear, and through holes are evenly opened on the mounting plate corresponding to the position of the fan blade. A pad is fixed at each of the four corner positions of the upper wall of the mounting plate, and the pad is fixedly connected to the brushless motor body.

[0013] The present invention is further configured such that guide rods are fixed at the four corner positions of the upper wall of the rotating plate, and guide sleeves are provided on the outer side of the guide rods with clearance fit, and the guide sleeves are fixedly connected to the mounting plate.

[0014] The present invention is further configured such that a rocker wheel is fixed at the lower end of the threaded rod, and rectangular grooves are provided on both the front and rear side walls of the U-shaped plate at the location of the rocker wheel.

[0015] The present invention is further configured such that a connecting rod is fixed at the middle position of both the front and rear side walls of the rotating plate, and the connecting rod is fixedly connected to the U-shaped plate through a bearing.

[0016] The present invention is further configured such that the upper end of the screw is semi-circular, and the outer peripheral wall of the screw is fixed with operating rods in a circular array.

[0017] This utility model has the following beneficial effects:

[0018] This invention, by setting left and right friction plates, allows the rotating shaft in the brushless motor body to drive the lower conveyor wheel to rotate after rotation, simultaneously driving the left friction plate to rotate. At this time, due to the moving friction between the left and right friction plates, the right friction plate can slowly accelerate and rotate, thereby driving the fan blade to rotate and providing a cooling effect for the brushless motor body. Compared with the prior art, the friction between the left and right friction plates allows the fan blade to slowly accelerate, which can reduce the resistance of the rotating shaft in the brushless motor body and solve the problem that the rotational resistance of the brushless motor rotating shaft is too large and easily leads to damage when it is in the starting state.

[0019] This invention, by setting up a mounting bracket, threaded rod, rotating plate, screws, and screw sleeves, allows for adjustment of the mounting height of the brushless motor body by rotating the threaded rod to move the mounting bracket accordingly. This movement drives the heat dissipation mechanism and the brushless motor body. Furthermore, by rotating the two screws and disengaging them from the rotating plate, and adjusting the angle of the rotating plate to a suitable angle, the upper ends of both screws can be brought into contact with the rotating plate, thus easily adjusting the angle of the rotating plate and consequently the mounting angle of the brushless motor body. This solves the problem in existing technologies where it is inconvenient to adjust the angle and height of the brushless motor during installation.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a structural diagram of a high-speed brushless motor with heat dissipation function.

[0023] Figure 2 This is a structural diagram of the heat dissipation mechanism.

[0024] Figure 3 for Figure 2 Another perspective on the structure.

[0025] Figure 4 This is a structural diagram of the adjustment mechanism.

[0026] Figure 5 for Figure 4 Another perspective on the structure.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Brushless motor body, 2-Heat dissipation mechanism, 201-Belt, 201a-Upper conveyor wheel, 201b-Lower conveyor wheel, 202-Circular plate, 202a-Elastic element, 203-Right friction plate, 204-Left friction plate, 205-Rotating rod, 205a-Lower gear, 206-Fan blade, 206a-Upper gear, 207-Mounting plate, 207a-Perforation, 207b-Padded block, 207c-Connecting plate, 208-Telescopic rod, 3-Adjusting mechanism, 301-Mounting bracket, 302-Guide sleeve, 303-Rotating plate, 303a-Connecting rod, 303b-Guide rod, 304-U-shaped plate, 304a-Rectangular groove, 305-Threaded sleeve, 306-Threaded rod, 306a-Roller wheel, 307-Screw, 307a-Operating lever. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1, please refer to Figure 1-3This utility model relates to a high-speed brushless motor with heat dissipation function, comprising a brushless motor body 1, a heat dissipation mechanism 2 disposed on the lower side of the brushless motor body 1, the heat dissipation mechanism 2 including a mounting plate 207 disposed below the brushless motor body 1, a protective cover installed along the edge of the mounting plate 207 to prevent external objects from contacting the fan blades 206, and a fan blade 206 rotatably connected to the middle position of the mounting plate 207 via a bearing to generate airflow for heat dissipation of the brushless motor body 1, and a rotating rod 205 disposed on the lower right side of the mounting plate 207, the outer side of the rotating rod 205... The unit is provided with a lower conveyor wheel 201b, a left friction plate 204 and a right friction plate 203 arranged from left to right. An elastic element 202a is evenly fixed on the right wall of the right friction plate 203, which applies a leftward force to the right friction plate 203, so that the left friction plate 204 and the right friction plate 203 are in a suitable frictional force. With the above arrangement, when the left friction plate 204 rotates, it slowly drives the right friction plate 203 to be lifted and rotated under the action of the frictional force between it and the right friction plate 203, thereby reducing the resistance when the brushless motor body 1 starts and avoiding overload damage due to excessive resistance.

[0031] Specifically, a connecting plate 207c is provided on the outside of the rotating rod 205 to the left of the lower conveyor wheel 201b. The connecting plate 207c is fixedly connected to the mounting plate 207. The rotating rod 205 is rotatably connected to the connecting plate 207c through a bearing. The above arrangement allows the rotating rod 205 to rotate in a fixed position.

[0032] Above the lower conveyor wheel 201b, corresponding to the outside of the power output shaft in the brushless motor body 1, an upper conveyor wheel 201a is fixed. A belt 201 is provided on the outside of the upper conveyor wheel 201a and the lower conveyor wheel 201b. The lower conveyor wheel 201b is connected to the lower conveyor wheel 201b by belt drive through the belt 201. With the above configuration, when the brushless motor body 1 is working, its rotating shaft rotates, thereby driving the upper conveyor wheel 201a to rotate. Under the action of the belt 201, the lower conveyor wheel 201b is driven to rotate, which in turn drives the left friction plate 204 to rotate, thereby driving the right friction plate 203 to rotate.

[0033] The left friction plate 204 is fixedly connected to the lower conveyor wheel 201b. A circular plate 202 is fixed to the outside of the rotating rod 205 on the right side of the elastic element 202a. A telescopic rod 208 is provided inside the elastic element 202a, so that the right friction plate 203 and the circular plate 202 can move relative to each other but cannot rotate. At the same time, the right friction plate 203 and the rotating rod 205 are in clearance fit to prevent the right friction plate 203 from shaking. The two ends of the telescopic rod 208 are fixedly connected to the corresponding right friction plate 203 and the circular plate 202 respectively.

[0034] A lower gear 205a is fixed to the outside of the left end of the rotating rod 205, and an upper gear 206a is fixed to the rotating shaft of the fan blade 206. The upper gear 206a and the lower gear 205a are meshed and connected. The mounting plate 207 corresponding to the position of the fan blade 206 has evenly spaced through holes 207a. When the rotating rod 205 rotates, it drives the lower gear 205a to rotate, thereby causing the upper gear 206a to rotate, which in turn causes the fan blade 206 to rotate and generate airflow for heat dissipation. Both the upper gear 206a and the lower gear 205a are bevel gears. A pad 207b is fixed at each of the four corners of the upper wall of the mounting plate 207, so that there is a certain height between the brushless motor body 1 and the mounting plate 207 to facilitate airflow and achieve heat dissipation. The pad 207b is fixedly connected to the brushless motor body 1.

[0035] Furthermore, the left friction plate 204 and the lower conveyor wheel 201b, the right friction wheel and the telescopic rod 208, and the circular plate 202 and the rotating rod 205 are all detachably fixed;

[0036] The operation process of this embodiment is as follows: When the brushless motor body 1 is started, the power output shaft of the brushless motor body 1 rotates, driving the upper conveyor wheel 201a to rotate. Under the action of the belt 201, the lower conveyor wheel 201b rotates. At this time, the left friction plate 204 rotates. Under the action of the friction between the left friction plate 204 and the right friction plate 203, the right friction plate 203 slowly increases its speed, driving the rotating rod 205 to rotate. This causes the lower gear 205a to rotate, driving the upper gear 206a to rotate, and finally driving the fan blade 206 to rotate, generating airflow that acts on the brushless motor body 1 for heat dissipation.

[0037] Example 2, please refer to Figure 1 , 4 5. This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: an adjustment mechanism 3 is provided below the heat dissipation mechanism 2. The adjustment mechanism 3 includes a rotating plate 303. A threaded rod 306 is rotatably connected to the middle position of the rotating plate 303 via a bearing. A mounting bracket 301 is externally threaded to the upper side of the threaded rod 306. The mounting bracket 301 is U-shaped. Rotating the threaded rod 306 drives the mounting bracket 301 to move, thereby moving the brushless motor body 1. The height can be adjusted by rotating the plate 303. The mounting bracket 301 is fixedly connected to the mounting plate 207. A U-shaped plate 304 is provided on the outside of the rotating plate 303. Screws 307 are provided on the lower left and right sides of the rotating plate 303. Screw sleeves 305 are threadedly connected to the outside of the screws 307. By rotating the rotating plate 303 at a suitable angle and rotating the screws 307, the upper end of the screws 307 can be made to abut against the rotating plate 303 to adjust the mounting angle of the brushless motor body 1. The screw sleeves 305 are fixedly connected to the U-shaped plate 304.

[0038] Specifically, guide rods 303b are fixed at the four corners of the upper wall of the rotating plate 303. Guide sleeves 302 are provided on the outer side of the guide rods 303b with clearance fit. The guide sleeves 302 are fixedly connected to the mounting plate 207. The above arrangement can improve the connection stability between the rotating plate 303 and the mounting plate 207 through the cooperation of the guide rods 303b and the guide sleeves 302.

[0039] A rocker wheel 306a is fixed at the lower end of the threaded rod 306. The threaded rod 306 can be rotated by operating the rocker wheel 306a. Rectangular grooves 304a are provided on the front and rear side walls of the U-shaped plate 304 at the location of the rocker wheel 306a. The rocker wheel 306a can be rotated by inserting a hand into the rectangular groove 304a.

[0040] A connecting rod 303a is fixed at the middle position of both the front and rear side walls of the rotating plate 303, and the connecting rod 303a is fixedly connected to the U-shaped plate 304 through a bearing. With the above arrangement, the rotating plate 303 can rotate in a fixed position through the cooperation of the connecting rod 303a and the bearing.

[0041] The upper end of the screw 307 is semi-circular to accommodate rotating plates 303 at different angles. The outer peripheral wall of the screw 307 is fixed with operating rods 307a in a circular array. Rotating the operating rods 307a will cause the screw 307 to rotate.

[0042] Furthermore, in order to avoid the vibration generated during the operation of the brushless motor body 1 affecting the height and angle, bolts are threadedly connected to the rocker wheel 306a and the screw sleeve 305. The threaded end of the bolt on the rocker wheel 306a abuts against the rotating plate 303, and the threaded end of the bolt on the screw sleeve 305 abuts against the screw rod 307, so as to prevent the screw rod 307 and the threaded rod 306 from rotating.

[0043] The remaining structure is the same as in Example 1;

[0044] The operation process of this embodiment is as follows: After fixing the U-shaped plate 304 on the mounting platform, operate the operating rods 307a on the two screws 307 to disengage the screws 307 from the rotating plate 303. At this time, adjust the angle of the rotating plate 303 to a suitable angle, and then control the operating rods 307a to rotate so that the upper ends of the two screws 307 abut against the lower wall of the rotating plate 303 to fix the angle. At this time, the hand passes through the rectangular groove 304a and extends into the inside of the U-shaped plate 304. The rocker wheel 306a is operated to drive the screws 307 to rotate, so that the mounting bracket 301 moves accordingly, and finally drives the brushless motor body 1 to move accordingly to adjust the height of the brushless motor body 1.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A high-speed brushless motor with heat dissipation function, comprising a brushless motor body (1), characterized in that: A heat dissipation mechanism (2) is provided on the lower side of the brushless motor body (1). The heat dissipation mechanism (2) includes a mounting plate (207) located below the brushless motor body (1). A fan blade (206) is rotatably connected to the middle position of the mounting plate (207) via a bearing. A rotating rod (205) is provided on the lower right side of the mounting plate (207). A lower conveying wheel (201b), a left friction plate (204), and a right friction plate (203) are arranged sequentially from left to right on the outer right side of the rotating rod (205). An elastic element (202a) is uniformly fixed on the right wall of the right friction plate (203). Below the heat dissipation mechanism (2) is an adjustment mechanism (3). The adjustment mechanism (3) includes a rotating plate (303). A threaded rod (306) is rotatably connected to the middle position of the rotating plate (303) via a bearing. An mounting bracket (301) is connected to the upper external thread of the threaded rod (306). The mounting bracket (301) is fixedly connected to the mounting plate (207). A U-shaped plate (304) is provided on the outside of the rotating plate (303). Screws (307) are provided on the lower left and right sides of the rotating plate (303). A screw sleeve (305) is connected to the external thread of the screw (307). The screw sleeve (305) is fixedly connected to the U-shaped plate (304).

2. A high-speed brushless motor with heat dissipation function according to claim 1, characterized in that: A connecting plate (207c) is provided on the left side of the lower conveyor wheel (201b) corresponding to the outside of the rotating rod (205). The connecting plate (207c) is fixedly connected to the mounting plate (207), and the rotating rod (205) is rotatably connected to the connecting plate (207c) through a bearing.

3. A high-speed brushless motor with heat dissipation function according to claim 2, characterized in that: Above the lower conveyor wheel (201b), an upper conveyor wheel (201a) is fixed to the outside of the power output shaft in the brushless motor body (1). A belt (201) is provided on the outside of the upper conveyor wheel (201a) and the lower conveyor wheel (201b). The lower conveyor wheel (201b) is connected to the lower conveyor wheel (201b) by belt drive through the belt (201).

4. A high-speed brushless motor with heat dissipation function according to claim 1, characterized in that: The left friction plate (204) is fixedly connected to the lower conveying wheel (201b). A circular plate (202) is fixed to the right side of the elastic element (202a) corresponding to the outside of the rotating rod (205). A telescopic rod (208) is provided inside the elastic element (202a). The two ends of the telescopic rod (208) are fixedly connected to the corresponding right friction plate (203) and the circular plate (202) respectively.

5. A high-speed brushless motor with heat dissipation function according to claim 1, characterized in that: A lower gear (205a) is fixed to the outside of the left end of the rotating rod (205), and an upper gear (206a) is fixed on the rotating shaft of the fan blade (206). The upper gear (206a) meshes with the lower gear (205a). Perforations (207a) are evenly opened on the mounting plate (207) corresponding to the position of the fan blade (206). A pad (207b) is fixed at each of the four corners of the upper wall of the mounting plate (207). The pad (207b) is fixedly connected to the brushless motor body (1).

6. A high-speed brushless motor with heat dissipation function according to claim 1, characterized in that: Guide rods (303b) are fixed at the four corners of the upper wall of the rotating plate (303). Guide sleeves (302) are provided on the outer side of the guide rods (303b) with clearance fit. The guide sleeves (302) are fixedly connected to the mounting plate (207).

7. A high-speed brushless motor with heat dissipation function according to claim 1, characterized in that: The lower end of the threaded rod (306) is fixed with a rocker wheel (306a), and rectangular grooves (304a) are provided on the front and rear side walls of the U-shaped plate (304) at the location of the rocker wheel (306a).

8. A high-speed brushless motor with heat dissipation function according to claim 6, characterized in that: A connecting rod (303a) is fixed at the middle position of both the front and rear side walls of the rotating plate (303), and the connecting rod (303a) is fixedly connected to the U-shaped plate (304) through a bearing.

9. A high-speed brushless motor with heat dissipation function according to claim 1, characterized in that: The upper end of the screw (307) is semi-circular, and the outer peripheral wall of the screw (307) is fixed with operating rods (307a) in a circular array.

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