A brushless motor protective housing for industrial fans

Abstract

The present invention provides a brushless motor protective shell for an industrial fan, comprising a shell, a sealing cover movably inserted in the center of the left side of the shell, a first spring fixedly connected to the top of the inner wall of the shell, five first springs are equidistantly arranged along the horizontal direction of the shell, a protective shell is fixedly connected to the side of the first spring close to the center of the shell, the protective shell is located at the center position inside the shell, the protective shell is in a circular ring shape, a second spring is fixedly connected to the center of the bottom of the inner wall of the protective shell, the bottom of the second spring is fixedly connected to a limiting plate, and a third spring is fixedly connected to the center of the bottom of the inner wall of the shell, and a fourth spring is arranged so that the output end of the motor can press the fourth spring up and down when vibrating, thereby reducing vibration near the output end of the motor, so that the motor can be more stable when driving fan blades to rotate.

Description

Technical Field

[0001] The invention relates to the technical field of brushless motors, in particular to a brushless motor protective shell for an industrial fan. Background Art

[0002] Brushless DC motors use semiconductor switching devices to achieve electronic commutation, that is, electronic switching devices are used to replace traditional contact commutators and brushes. At present, when people install brushless motors, they usually put the motors into protective casings to protect the rotors and other electronic components inside the motors. When the motors are working, they will generate great vibrations, which will cause the fan to rotate irregularly when the motor drives the fan to rotate. The protective casing has poor shock-absorbing effect on the motor. At the same time, the traditional protective casing can only reduce shock at the tail of the motor, but cannot reduce shock near the motor output shaft. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a brushless motor protective housing for an industrial fan, which has the advantages of good shock-absorbing effect on the motor and being able to perform shock absorption near the output shaft of the motor, thereby solving the problem that the shock-absorbing effect on the motor is good but shock absorption cannot be performed near the output shaft of the motor.

[0004] The brushless motor protective shell for an industrial fan of the present invention comprises a shell, a sealing cover is movably inserted in the center of the left side of the shell, a first spring is fixedly connected to the top of the inner wall of the shell, five first springs are equidistantly arranged along the horizontal direction of the shell, a side of the first spring close to the center of the shell is fixedly connected to a protective shell, the protective shell is located at the center position inside the shell, the protective shell is in a circular ring shape, a second spring is fixedly connected to the center of the bottom of the inner wall of the protective shell, the bottom of the second spring is fixedly connected to a limiting plate, a third spring is fixedly connected to the center of the bottom of the inner wall of the shell, the center of the top of the third spring is fixedly connected to a bottom plate, threaded holes are provided at the four corners of the top of the bottom plate, a through slot is provided in the center of the right side of the shell, grooves are provided at the top and bottom of the through slot on the right side of the shell, a sleeve is fixedly connected to the center of the groove away from the center of the shell, and a sliding rod is slidably connected to the inner wall of the sleeve and the side away from the center of the shell.

[0005] The brushless motor protective housing for an industrial fan of the present invention has a handle fixedly connected to the center of the left side of the sealing cover, and a buffer pad fixedly connected to the right side of the sealing cover. This structural arrangement enables a worker to pull the sealing cover out from the inner wall of the box by pulling the handle, making it convenient for the worker to disassemble and assemble the motor, while the buffer pad can dampen the left side of the motor, thereby reducing the vibration amplitude of the motor when it is working.

[0006] The brushless motor protective housing for an industrial fan of the present invention comprises first springs equidistantly arranged in a ring shape with the center of the housing as the center of the circle, and a plurality of second springs equidistantly arranged along the horizontal direction of the housing. This structural arrangement enables a worker to place the motor into the protective housing, and when the motor vibrates left and right, it can drive and squeeze the first spring, so that the first spring can give the protective housing an opposite force, thereby reducing the vibration of the motor.

[0007] The brushless motor protective housing for an industrial fan of the present invention has a rubber pad fixedly connected to the center of the bottom of a limiting plate, and a plurality of anti-slip protrusions are evenly fixedly connected to the surface of the rubber pad. This structural arrangement enables the limiting plate to squeeze the top of the motor, thereby limiting the motor and reducing the shaking amplitude of the motor.

[0008] The brushless motor protective housing for an industrial fan of the present invention has sliders fixedly connected to the left and right sides of the slide rod away from the center of the housing, and slide grooves are provided on the left and right sides of the inner wall of the sleeve, and the sliders are slidably connected in the slide grooves. This structural arrangement enables a worker to pass the output shaft of the motor through the groove on the right side of the housing, so that two limit rings can limit the vicinity of the output shaft of the motor, and the limit rings can limit the output shaft of the motor when it rotates.

[0009] The brushless motor protective housing for an industrial fan of the present invention has a fourth spring fixedly connected to the center of a sliding rod away from the center of the shell, the fourth spring is fixedly connected to the inner wall of the sleeve on the side away from the sliding rod, and a limit ring is fixedly connected to the center of a sliding rod close to the center of the shell, and the limit ring is a semicircular ring. This structural arrangement enables the output end of the motor to squeeze the fourth spring up and down when vibrating, thereby reducing vibration near the output end of the motor, so that the motor can be more stable when driving the fan blades to rotate.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention provides a handle and a sealing cover, in cooperation with a buffer pad, so that the staff can pull the handle to pull the sealing cover out from the inner wall of the box, which is convenient for the staff to disassemble and assemble, and the buffer pad can reduce the shock of the left side of the motor, thereby reducing the vibration amplitude of the motor when working. The first spring and the protective shell are provided, so that the staff can put the motor into the protective shell. When the motor vibrates left and right, it can drive and squeeze the first spring, so that the first spring can give the protective shell an opposite force to reduce the shock of the motor. The second spring and the limit plate enable the limit block to squeeze the top of the motor, thereby limiting the motor and reducing the shaking amplitude of the motor. The bottom plate and the third spring are provided, so that when the motor shakes up and down, the third spring can give the motor an upward force, thereby reducing the amplitude of the up and down vibration of the motor.

[0012] 2. The present invention provides a slider and a slide groove in cooperation with the slide rod, so that the staff can pass the output shaft of the motor through the groove on the right side of the shell, so that the two limit rings can limit the position near the output shaft of the motor. When the output shaft of the motor rotates, the limit ring can limit it, and through the fourth spring, when the output end of the motor vibrates, the fourth spring can be squeezed up and down, thereby reducing the shock near the output end of the motor, so that the motor can be more stable when driving the fan blades to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the overall side cross-sectional structure of the present invention;

[0016] Figure 3 for Figure 1 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. Shell; 2. Sealing cover; 3. Handle; 4. Buffer pad; 5. First spring; 6. Protective shell; 7. Second spring; 8. Limit plate; 9. Rubber pad; 10. Third spring; 11. Bottom plate; 12. Threaded hole; 13. Groove; 14. Sleeve; 15. Slide rod; 16. Slider; 17. Slide groove; 18. Fourth spring; 19. Limit ring. DETAILED DESCRIPTION

[0018] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0019] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] See also Figure 1-3 The brushless motor protective housing for an industrial fan of the present invention comprises a housing 1, a sealing cover 2 is movably inserted in the center of the left side of the housing 1, a first spring 5 is fixedly connected to the top of the inner wall of the housing 1, five first springs 5 ​​are equidistantly arranged along the horizontal direction of the housing 1, a protective shell 6 is fixedly connected to the side of the first spring 5 close to the center of the housing 1, the protective shell 6 is located at the central position inside the housing 1, the protective shell 6 is annular, a second spring 7 is fixedly connected to the center of the bottom of the inner wall of the protective shell 6, a limiting plate 8 is fixedly connected to the bottom of the second spring 7, a third spring 10 is fixedly connected to the center of the bottom of the inner wall of the housing 1, a bottom plate 11 is fixedly connected to the center of the top of the third spring 10, threaded holes 12 are provided at the four corners of the top of the bottom plate 11, a through slot is provided in the center of the right side of the housing 1, grooves 13 are provided at the top and bottom of the through slot on the right side of the housing 1, a sleeve 14 is fixedly connected to the center of the groove 13 away from the center of the housing 1, and a sliding rod 15 is slidably connected to the inner wall of the sleeve 14 and the side away from the center of the housing 1.

[0021] A handle 3 is fixedly connected to the center of the left side of the sealing cover 2, and a buffer pad 4 is fixedly connected to the right side of the sealing cover 2. This structural arrangement allows the staff to pull the handle 3 to pull the sealing cover 2 out from the inner wall of the box, making it convenient for the staff to disassemble and assemble, and the buffer pad 4 can dampen the left side of the motor, thereby reducing the vibration amplitude of the motor when it is working.

[0022] The first springs 5 ​​are equidistantly arranged in a ring shape with the center of the shell 1 as the center, and a number of second springs 7 are equidistantly arranged along the horizontal direction of the shell 1. This structural arrangement enables the staff to place the motor into the protective shell 6. When the motor vibrates left and right, it can drive and squeeze the first spring 5, so that the first spring 5 can give the protective shell 6 an opposite force, thereby reducing the shock of the motor.

[0023] A rubber pad 9 is fixedly connected to the center of the bottom of the limiting plate 8, and a plurality of anti-slip protrusions are evenly fixedly connected to the surface of the rubber pad 9. This structural setting enables the limiting plate 8 to squeeze the top of the motor, thereby limiting the motor and reducing the shaking amplitude of the motor.

[0024] Slide blocks 16 are fixedly connected to the left and right sides of the slide rod 15 away from the center of the shell 1, and slide grooves 17 are opened on the left and right sides of the inner wall of the sleeve 14. The slide blocks 16 are slidably connected in the slide grooves 17. This structural setting enables the staff to pass the output shaft of the motor through the groove 13 on the right side of the shell 1, so that the two limit rings 19 can limit the position near the output shaft of the motor, and when the output shaft of the motor rotates, the limit rings 19 can limit it.

[0025] A fourth spring 18 is fixedly connected to the center of the slide bar 15 away from the center of the shell 1. The fourth spring 18 is fixedly connected to the inner wall of the sleeve 14 on the side away from the slide bar 15. A limit ring 19 is fixedly connected to the center of the slide bar 15 close to the center of the shell 1. The limit ring 19 is a semicircular ring. This structural arrangement allows the output end of the motor to squeeze the fourth spring 18 up and down when it vibrates, thereby reducing shock near the output end of the motor, so that the motor can be more stable when driving the fan blades to rotate.

[0026] When using the present invention: first, the staff pulls the sealing cover 2 out of the housing 1, and then the motor can be placed on the bottom plate 11, so that the top of the motor can fit with the bottom of the limiting plate 8, and the surface of the motor can fit with the inner wall of the protective shell 6, and the output end of the motor passes through the through groove on the right side of the housing 1, so that the limiting ring 19 can limit the vicinity of the motor output end, and then the sealing cover 2 is inserted into the housing 1 again, and then the staff can turn on the motor. When the motor starts working, it will vibrate up and down, so that the bottom plate 11 drives it to shake up and down, and when the bottom plate 11 shakes up and down, The third spring 10 is compressed, and the third spring 10 pushes the bottom plate 11 upward, thereby reducing the amplitude of the motor's up and down shaking. When the motor shakes left and right, the first spring 5 outside the protective shell 6 is compressed, and the first spring 5 gives the motor an opposite force, thereby reducing the shock of the motor in the left and right directions. When vibration occurs near the output shaft of the motor, the slide bar 15 is pushed upward or downward, thereby driving the slider 16 to slide in the slide groove 17, and the fourth spring 18 gives the slide bar 15 an opposite force, so that the slide bar 15 moves in the opposite direction, thereby reducing the shaking amplitude of the motor output end.

[0027] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A brushless motor protective housing for an industrial fan, comprising a housing (1), characterized in that: A sealing cover (2) is movably inserted in the center of the left side of the shell (1); a first spring (5) is fixedly connected to the top of the inner wall of the shell (1); five first springs (5) are arranged equidistantly along the horizontal direction of the shell (1); a protective shell (6) is fixedly connected to the side of the first spring (5) close to the center of the shell (1); the protective shell (6) is located at the center of the shell (1); the protective shell (6) is annular; a second spring (7) is fixedly connected to the center of the bottom of the inner wall of the protective shell (6); the bottom of the second spring (7) is fixedly connected to a limiting plate (8); A third spring (10) is fixedly connected at the center of the bottom of the inner wall of the shell (1), a bottom plate (11) is fixedly connected at the center of the top of the third spring (10), threaded holes (12) are provided at the four corners of the top of the bottom plate (11), a through slot is provided at the center of the right side of the shell (1), grooves (13) are provided at the top and bottom of the through slot on the right side of the shell (1), a sleeve (14) is fixedly connected at the center of the groove (13) away from the center of the shell (1), and a sliding rod (15) is slidably connected to the inner wall of the sleeve (14) away from the center of the shell (1); The left and right sides of the slide rod (15) away from the center of the housing (1) are fixedly connected with slide blocks (16), and the left and right sides of the inner wall of the sleeve (14) are provided with slide grooves (17), and the slide blocks (16) are slidably connected in the slide grooves (17); A fourth spring (18) is fixedly connected to the center of the sliding rod (15) away from the center of the shell (1), and the side of the fourth spring (18) away from the sliding rod (15) is fixedly connected to the inner wall of the sleeve (14). A limit ring (19) is fixedly connected to the center of the sliding rod (15) close to the center of the shell (1), and the limit ring (19) is in a semicircular shape.

2. The brushless motor protective housing for an industrial fan according to claim 1, characterized in that: A handle (3) is fixedly connected to the center of the left side of the sealing cover (2), and a buffer pad (4) is fixedly connected to the right side of the sealing cover (2).

3. The brushless motor protective housing for an industrial fan according to claim 1, characterized in that: The first springs (5) are arranged equidistantly in a ring shape with the center of the housing (1) as the center of the circle, and a plurality of the second springs (7) are arranged equidistantly along the horizontal direction of the housing (1).

4. The brushless motor protective housing for an industrial fan according to claim 1, characterized in that: A rubber pad (9) is fixedly connected to the center of the bottom of the limiting plate (8), and a plurality of anti-slip protrusions are evenly fixedly connected to the surface of the rubber pad (9).

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