Dustproof brushless motor capable of being sealed

Abstract

The utility model relates to a sealable dustproof brushless motor, which comprises a brushless motor, a shell and a sealing plate, the brushless motor is arranged in the shell, an upper cover is arranged on the shell, a lower cover is arranged below the shell, the sealing plate is arranged in the shell, and the shell is provided with a dustproof cover. A worm gear rack is embedded in the sealing plate, and a worm is arranged on one side of the worm gear rack; the brushless motor is reasonable in structural design, the sealing plate is movable, the sealing plate can be closed if the brushless motor has a sealing requirement during use, the sealing plate can be opened if the brushless motor does not need to be sealed, and the filter screen plate can play a dustproof role, so that the loss of the brushless motor caused by dust is reduced, the brushless motor is wider in application range and more flexible in use, and the service life of the brushless motor is prolonged. Cooling oil is arranged in the lower cover, so that heat dissipation of the brushless motor is not affected when the sealing plate is in a closed state.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, in particular to a sealable dustproof brushless motor. Background Art

[0002] As an important development achievement of modern electric technology, brushless motors are widely used in many fields such as power tools, aerospace, automobiles, medical equipment, etc. due to their high efficiency, low noise and high reliability. With the advancement of power electronics technology and the improvement of motor control theory, brushless motors have gradually replaced brushed motors to become the mainstream of the market. With the application of new materials, new processes and the optimization of control algorithms, the performance of brushless motors has been significantly improved.

[0003] During the operation of the brushless motor, heat is generated. Dust and heat dissipation will cause losses in the brushless motor, so the brushless motor needs to be dust-proof and heat-dissipating. Brushless motors are widely used, and sometimes they need to be sealed to achieve a waterproof effect. Therefore, it is necessary to make a low-loss brushless motor that can be used in a diversified way. After searching, the Chinese patent authorization number CN206575269U discloses a dust-proof brushless motor, including a body, a coil group is provided on the inner wall of the body, a magnet inside the body, an output shaft is fixedly connected to the center of the magnet, the output shaft passes through the interior of the body and extends to the outside of the body, a protective sleeve is provided on the part of the output shaft extending to the outside of the body, and a first filter screen is evenly distributed on the surface of the protective sleeve. The utility model provides a dust-proof device for the brushless motor, but lacks a sealing device. The brushless motor cannot be used in a working environment that requires waterproofing, which is a defect. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies of the existing problems, the utility model provides a sealable dustproof brushless motor.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a sealable dust-proof brushless motor, comprising a brushless motor, a housing and a sealing plate, the brushless motor is installed in the housing, the housing is a cylindrical structure, the right half of the housing is a solid plate, and the left half is a filter screen plate, an upper cover is provided on the housing, and an elongated hole is opened on the upper cover, an output shaft is provided on the brushless motor, and the output shaft extends from the upper cover, a lower cover is provided below the housing, the lower cover is a hollow structure, cooling oil is poured into the lower cover, a limiting rubber ring is provided above the lower cover, the bottom of the brushless motor is provided in the limiting rubber ring, a limiting block is provided on one side of the inner wall of the housing, and a A resist block is provided, a sealing plate is passed through the limit block, the sealing plate is arranged in the shell and the upper cover and is clamped in the upper cover, the sealing plate is an arc-shaped structure, a worm rack is embedded in the sealing plate, the position of the worm rack corresponds to the long strip hole, the worm rack is an arc-shaped structure, a worm is provided on one side of the worm rack, a rotating rod is fixedly passed through the worm, the bottom end of the rotating rod is provided with a shaft sleeve and is arranged on the sealing plate through the shaft sleeve, the top of the rotating rod is provided with a shaft sleeve and is passed through the top of the sealing plate through the shaft sleeve, the top of the rotating rod extends from the top of the sealing plate and is connected to a rotating motor, the rotating motor is arranged on the upper cover, and sealing strips are provided on the four sides and the middle of the sealing plate.

[0006] Preferably, the curvature of the sealing plate matches the curvature of the interior of the shell.

[0007] Preferably, a rotating shaft is provided between the output shaft and the upper cover and the output shaft and the upper cover are connected via the rotating shaft.

[0008] Preferably, the length of the sealing plate is greater than the maximum distance between the limiting block and the abutting block and greater than the length of the filter screen plate.

[0009] Preferably, the worm is meshed with a worm gear rack.

[0010] The beneficial effects of the utility model are that the structure of the utility model is reasonably designed and the sealing plate is movable. If the brushless motor needs to be sealed when in use, the sealing plate can be closed. If sealing is not required, the sealing plate can be opened. The filter plate can play a dust-proof effect, reduce the loss of the brushless motor caused by dust, and make the brushless motor more widely used and more flexible. The setting of the cooling oil in the lower cover does not affect the heat dissipation of the brushless motor when the sealing plate is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a top view of the structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the worm and worm gear rack structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the back structure of the sealing plate of the present invention;

[0016] Figure 5 This is a schematic diagram of the upper cover structure of the utility model;

[0017] In the figure, 1. Housing; 2. Brushless motor; 3. Filter plate; 4. Upper cover; 5. Long hole; 6. Worm gear rack; 7. Output shaft; 8. Lower cover; 9. Limiting rubber ring; 10. Limiting block; 11. Sealing plate; 12. Sealing strip; 13. Support block; 14. Worm; 15. Rotating rod; 16. Rotating motor. DETAILED DESCRIPTION

[0018] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0019] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0020] like Figure 1-5As shown, a sealable dust-proof brushless motor comprises a brushless motor 2, a housing 1 and a sealing plate 11, wherein the brushless motor 2 is installed in the housing 1, the housing 1 is a cylindrical structure, the right half of the housing 1 is a solid plate, and the left half is a filter screen plate 3, an upper cover 4 is provided on the housing 1, and an elongated hole 5 is provided on the upper cover 4, an output shaft 7 is provided on the brushless motor 2, and the output shaft 7 extends from the upper cover 4, a lower cover 8 is provided under the housing 1, the lower cover 8 is a hollow structure, and cooling oil is poured into the lower cover 8, a limiting rubber ring 9 is provided on the upper part of the lower cover 8, and the bottom of the brushless motor 2 is provided in the limiting rubber ring 9, a limiting block 10 is provided on one side of the inner wall of the housing 1, and a resisting block 13 is provided on the other side of the inner wall of the housing 1, There is a sealing plate 11, which is arranged in the shell 1 and the upper cover 4 and is clamped in the upper cover 4. The sealing plate 11 is an arc-shaped structure. A worm rack 6 is embedded in the sealing plate 11. The position of the worm rack 6 corresponds to the long strip hole 5. The worm rack 6 is an arc-shaped structure. A worm 14 is provided on one side of the worm rack 6. A rotating rod 15 is fixedly penetrated in the worm 14. The bottom end of the rotating rod 15 is provided with a shaft sleeve and is arranged on the sealing plate 11 through the shaft sleeve. The top of the rotating rod 15 is provided with a shaft sleeve and is penetrated through the top of the sealing plate 11 through the shaft sleeve. The top of the rotating rod 15 extends from the top of the sealing plate 11 and is connected to a rotating motor 16. The rotating motor 16 is provided on the upper cover 4. Sealing strips 12 are provided on the four sides and in the middle of the sealing plate 11.

[0021] The curvature of the sealing plate 11 matches the curvature inside the shell 1; a rotating shaft is provided between the output shaft 7 and the upper cover 4 and is connected through the rotating shaft; the length of the sealing plate 11 is greater than the maximum distance between the limit block 10 and the abutting block 13 and is greater than the length of the filter plate 3; the worm 14 is engaged with the worm gear rack 6.

[0022] During use, if the brushless motor 2 needs to be waterproof, the rotating motor can be controlled to rotate the rotating rod 15 to rotate, thereby driving the worm 14 to rotate, and then driving the worm rack 6 to move, so that the sealing plate 11 blocks the hollow part of the filter screen plate 3; while sealing, the cooling oil in the lower cover 8 will dissipate heat to the brushless motor 2 during operation, reducing the loss of the brushless motor 2; when the brushless motor 2 is not needed to achieve a waterproof effect, the rotating motor can be controlled to rotate the rotating rod 15 to rotate, thereby driving the worm 14 to rotate, and then driving the worm rack 6 to move, so that the sealing plate 11 does not cover the filter screen plate 3. The filter screen plate 3 can dissipate heat to the brushless motor 2 in the housing 1 while preventing dust.

[0023] The present invention is cleverly designed. The sealing plate 11 is movable. If the brushless motor 2 needs to be sealed during use, the sealing plate 11 can be closed. If it does not need to be sealed, the sealing plate 11 can be opened. The worm 14 and the worm gear rack 6 are arranged so that the sealing plate 11 is rotated to a certain position and the position of the sealing plate 11 is limited so that the sealing plate 11 does not move left or right. The arrangement of the filter plate 3 can achieve the dustproof and heat dissipation effects for the brushless motor 2 at the same time, thereby reducing the loss of the brushless motor 2 caused by dust. The sealing plate 11 is movable so that the brushless motor 2 can be 2 has a wider range of uses and is more flexible to use. The sealing strip 12 improves the sealing effect. The setting of the limit block 10 and the abutting block 13 can limit the forward and backward displacement of the sealing plate 11, so that the sealing plate 11 moves closely against the inner wall of the housing 1 and cannot move further after reaching a certain position. The setting of the cooling oil in the lower cover 8 can not affect the heat dissipation of the brushless motor 2 when the sealing plate 11 is in the closed state, thereby reducing the loss of the brushless motor 2. The setting of the limit rubber ring 9 on the lower cover 8 makes the brushless motor 2 more firmly installed in the housing 1 and not easy to shake.

[0024] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A sealable dustproof brushless motor, characterized in that: The brushless motor (2) comprises a brushless motor (2), a housing (1) and a sealing plate (11), wherein the brushless motor (2) is installed in the housing (1), the housing (1) is a cylindrical structure, the right half of the housing (1) is a solid plate, and the left half is a filter screen plate (3), the housing (1) is provided with an upper cover (4), the upper cover (4) is provided with a long hole (5), the brushless motor (2) is provided with an output shaft (7), and the output shaft (7) extends from the upper cover (4) A lower cover (8) is provided below the housing (1), the lower cover (8) is a hollow structure, cooling oil is poured into the lower cover (8), a limiting rubber ring (9) is provided on the upper side of the lower cover (8), the bottom of the brushless motor (2) is provided in the limiting rubber ring (9), a limiting block (10) is provided on one side of the inner wall of the housing (1), a supporting block (13) is provided on the other side of the inner wall of the housing (1), and a sealing plate ( 11), the sealing plate (11) is arranged in the housing (1) and the upper cover (4) and is clamped in the upper cover (4), the sealing plate (11) is an arc-shaped structure, a worm rack (6) is embedded in the sealing plate (11), the position of the worm rack (6) corresponds to the long hole (5), the worm rack (6) is an arc-shaped structure, a worm (14) is provided on one side of the worm rack (6), and a rotating rod (15) is fixedly penetrated in the worm (14) The bottom end of the rotating rod (15) is provided with a shaft sleeve and is arranged on the sealing plate (11) through the shaft sleeve. The top end of the rotating rod (15) is provided with a shaft sleeve and is passed through the top of the sealing plate (11). The top end of the rotating rod (15) extends from the top of the sealing plate (11) and is connected to a rotating motor (16). The rotating motor (16) is arranged on the upper cover (4). The sealing plate (11) is provided with sealing strips (12) on all four sides and in the middle.

2. A sealable dustproof brushless motor according to claim 1, characterized in that: The curvature of the sealing plate (11) matches the curvature inside the housing (1).

3. The sealable dustproof brushless motor according to claim 1, characterized in that: A rotating shaft is provided between the output shaft (7) and the upper cover (4) and the output shaft (7) and the upper cover (4) are connected via the rotating shaft.

4. The sealable dustproof brushless motor according to claim 1, characterized in that: The length of the sealing plate (11) is greater than the maximum distance between the limiting block (10) and the abutting block (13) and is greater than the length of the filter screen plate (3).

5. The sealable dustproof brushless motor according to claim 1, characterized in that: The worm (14) is meshed with the worm gear rack (6).

Images