Noise reduction type brushless motor

Abstract

The utility model relates to the technical field of brushless motors, in particular to a noise reduction type brushless motor which comprises a base used for supporting the motor, two buffer strips are installed on the two sides of the top face of the base, a motor body is arranged on the top faces of the two buffer strips, two pressing strips are installed on the outer wall of the motor body, and the two pressing strips are arranged on the outer wall of the motor body. The two ends of the two pressing strips are fixedly connected with the two ends of the buffering strip correspondingly. The motor has the advantages that the position of the motor body is locked through the base, the sound insulation cover, the two pressing strips and the buffer strip, the base and the sound insulation cover are mutually enclosed to seal the motor body, the drainage pipe, the flow dividing pipe and the fan are arranged, the fan is powered on to operate, and the motor body is sealed. And external air enters the interior of the sound insulation cover along the drainage pipe and the shunt pipe on one side to drive air around the motor body to flow, and flows out from the drainage pipe and the shunt pipe on the other side to dissipate heat of the motor body, so that the problems in the prior art are effectively solved.

Description

Technical Field

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

[0002] Brushless motors are a typical mechatronic product, characterized by simple structure and reliable operation. They are widely used in aerospace, defense, and other fields. Brushless motors, also known as brushless DC motors, are synchronous motors powered by a DC power supply, using electronic commutation instead of traditional mechanical commutation. Brushless DC motors primarily consist of a motor body and a driver. The motor body is similar to a permanent magnet synchronous motor, while the rotor utilizes permanent magnets, often made of rare earth permanent magnets. When a brushless motor is driven, its vibrations generate noise, necessitating the installation of a noise reduction device.

[0003] When the traditional noise reduction device wraps the brushless motor, the air circulation speed on the motor surface slows down, which easily leads to poor heat dissipation, making it impossible to ensure the normal operation of the brushless motor and reducing the efficiency of the brushless motor. Based on this, a noise reduction brushless motor is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a noise-reducing brushless motor, which effectively solves the shortcomings of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present invention provides a noise-reducing brushless motor, comprising a base for supporting the motor, two buffer strips are installed on both sides of the top surface of the base, and the top surfaces of the two are provided with a motor body, the outer wall of the motor body is installed with two compression strips, the two ends of the two compression strips are fixedly connected to the two ends of the buffer strips respectively, a sound insulation cover is installed on the top of the base, a sound insulation layer is installed on the inner wall of the sound insulation cover and the top surface of the base, curved drainage pipes are installed on both sides of the sound insulation cover, a plurality of shunt pipes are installed between the adjacent ends of the two drainage pipes, and are connected to the sound insulation cover, a fan is installed at the end of one of the drainage pipes, and a through hole is reserved in the sound insulation layer near the shunt pipe.

[0006] Preferably, any of the above schemes is that a support seat is installed on one side of the top surface of the base, and a locking ring for fixing the fan is installed on the side of the support seat away from the top surface of the base. This scheme facilitates providing an installation and fixing position for the fan through the locking ring and the support seat, so that the fan can be placed stably, and one end of the fan is connected to the drainage pipe, so that air can enter the interior of the sound insulation cover along the drainage pipe and the diversion pipe.

[0007] Preferably, from any of the above schemes, the two ends of the two clamping strips are fixedly connected to the base by bolts, and a gap is left between the outer wall of the clamping strip and the inner wall of the sound insulation cover. By using this scheme, it is convenient to lock the motor body, and at the same time, the buffer strip facilitates stable support of the motor body and reduces the transmission of vibration to the base.

[0008] Preferably, any of the above schemes is that the inner wall of the soundproof cover is provided with a plurality of inclined grooves, and the two sides of the bottom surface of the soundproof cover are fixedly connected to the top surface of the base by bolts. By using this scheme, a plurality of inclined spaces are formed on the inner wall of the soundproof cover. When the noise passes through the first sound insulation board and the second sound insulation board, it is convenient to reflect inside the inclined groove, absorb the noise, and achieve noise reduction.

[0009] Preferably, any of the above schemes is that the sound insulation layer includes a first sound insulation board, sound insulation cotton and a second sound insulation board, which are arranged in sequence from the outside to the inside. The surfaces of the first sound insulation board and the second sound insulation board are both provided with a plurality of punching holes, and the size of the punching holes on the surface of the first sound insulation board is smaller than the size of the punching holes on the second sound insulation board. By using this scheme, it is convenient to form a sound-absorbing and noise-reducing structure on the inner wall of the soundproof cover, and then realize noise absorption through noise reflection and friction.

[0010] Preferably, one end of the fan is equipped with a filter. By using this solution, the air entering the fan is filtered, the cleanliness of the air entering the soundproof cover is ensured, the amount of dust is reduced, and the air is able to exchange heat with the motor body, thereby cooling the motor body.

[0011] The utility model has the following advantages:

[0012] 1. The noise reduction brushless motor is provided with a base, a sound insulation cover, two compression strips and two buffer strips. The two compression strips and the buffer strips lock the position of the motor body. The base and the sound insulation cover enclose each other to seal the motor body. A drainage pipe, a diverter pipe and a fan are provided. When the fan is powered on, external air enters the interior of the sound insulation cover along the drainage pipe and the diverter pipe on one side, driving the air around the motor body to flow and flowing out from the drainage pipe and the diverter pipe on the other side to dissipate heat from the motor body, thereby effectively solving the problems existing in the prior art.

[0013] 2. The noise-reducing brushless motor is provided with a base and a soundproof cover. At the same time, the top surface of the base and the inner wall of the soundproof cover are provided with a sound insulation layer, and the sound insulation layer includes a first sound insulation board, sound insulation cotton and a second sound insulation board. When the noise propagates to the outside, the noise passes through the second sound insulation board and the sound insulation cotton, and the sound insulation cotton absorbs the noise. At the same time, the punching sizes of the surfaces of the first sound insulation board and the second sound insulation board are different, and the inner wall of the soundproof cover is provided with multiple oblique grooves. As a result, the noise is reduced in the propagation space, and the noise is eliminated through reflection and friction, meeting the noise reduction requirements. 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 structure of the utility model from the first perspective;

[0016] Figure 3 This is a schematic structural diagram of the base from the first perspective of the present invention;

[0017] Figure 4 This is a schematic structural diagram of the base from a second perspective of the present invention;

[0018] Figure 5 This is a schematic diagram of the sound insulation cover structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the sound insulation layer structure of the utility model.

[0020] In the figure: 1-base, 2-motor body, 3-soundproof cover, 4-diverter pipe, 5-drainage pipe, 6-locking ring, 7-filter, 8-fan, 9-support seat, 10-pressure strip, 11-buffer strip, 12-soundproof layer, 1201-first sound insulation board, 1202-sound insulation cotton, 1203-second sound insulation board, 13-chute. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] like Figures 1 to 6As shown, a noise reduction brushless motor includes a base 1 for supporting the motor, two buffer strips 11 are installed on both sides of the top surface of the base 1, and the top surfaces of the two are provided with a motor body 2, the outer wall of the motor body 2 is provided with two pressing strips 10, the two ends of the two pressing strips 10 are respectively fixedly connected to the two ends of the buffer strip 11, a sound insulation cover 3 is installed on the top of the base 1, a U-shaped notch is left on one side of the sound insulation cover 3, a raised portion matching the U-shaped notch is installed on one side of the top surface of the base 1, and the sound insulation cover 3 and the top surface of the base 1 are installed with a sound insulation layer 12. A bent drainage pipe 5 is installed on both sides of the sound insulation cover 3. A plurality of diversion pipes 4 are installed between the adjacent ends of the two drainage pipes 5 and are connected to the sound insulation cover 3. A fan 8 is installed at the end of one drainage pipe 5. A through hole is reserved near the position of the diversion pipe 4 in the sound insulation layer 12 to ensure air circulation. The bent structure of the drainage pipe 5 and the combination of the plurality of diversion pipes 4 make the noise bend and conduct, and achieve noise reduction after multiple reflections.

[0023] A support seat 9 is installed on one side of the top surface of the base 1, and a locking ring 6 for fixing the fan 8 is installed on the side of the support seat 9 away from the top surface of the base 1. As an optional technical solution of the present invention, this facilitates providing an installation and fixing position for the fan 8 through the locking ring 6 and the support seat 9, so that the fan 8 can be placed stably, and one end of the fan 8 is connected to the drainage pipe 5, so that air can enter the interior of the sound insulation cover 3 along the drainage pipe 5 and the diversion pipe 6.

[0024] The two ends of the two clamping strips 10 are fixedly connected to the base 1 by bolts. A gap is left between the outer wall of the clamping strip 10 and the inner wall of the sound insulation cover 3. As an optional technical solution of the present invention, this facilitates locking the motor body 2. At the same time, the buffer strip 11 facilitates stable support for the motor body 2 and reduces the vibration transmitted to the base 1.

[0025] The inner wall of the soundproof cover 3 is provided with a plurality of inclined grooves 13, and the two sides of the bottom surface of the soundproof cover 3 are fixedly connected to the top surface of the base 1 by bolts. As an optional technical solution of the present invention, this facilitates the formation of a plurality of inclined spaces on the inner wall of the soundproof cover 3. When the noise passes through the first sound insulation board 1201 and the second sound insulation board 1203, it is convenient to reflect inside the inclined groove 13, absorb the noise, and achieve noise reduction.

[0026] The sound insulation layer 12 includes a first sound insulation board 1201, sound insulation cotton 1202 and a second sound insulation board 1203, which are arranged in sequence from the outside to the inside. The surfaces of the first sound insulation board 1201 and the second sound insulation board 1203 are both provided with multiple punching holes, and the size of the punching holes on the surface of the first sound insulation board 1201 is smaller than the size of the punching holes on the second sound insulation board 1203. As an optional technical solution of the present invention, this facilitates the formation of a sound-absorbing and noise-reducing structure on the inner wall of the soundproof cover 3, thereby absorbing noise through noise reflection and friction.

[0027] A filter screen 7 is installed at one end of the fan 8 as an optional technical solution of the present invention. This makes it easy to filter the air entering the fan 8, ensure the cleanliness of the air entering the soundproof cover 3, reduce the amount of dust, and ensure that the air can exchange heat with the motor body 2, thereby cooling the motor body 2.

[0028] The following steps are required to use this noise reduction brushless motor:

[0029] 1) During installation, the soundproof cover 3 is fixed to the base 1 with bolts;

[0030] 2) The fan 8 is powered on and runs, driving the external air along the drainage pipe 5 on one side and the multiple diversion pipes 4 into the interior of the soundproof cover 3;

[0031] 3) The flowing air flows along the outer wall of the motor body 2 and flows out from the drainage pipe 5 and the diversion pipe 4 on the other side, thereby dissipating heat from the motor body 2.

[0032] In summary, when the user uses it, by setting the base 1, the sound insulation cover 3, the two pressing strips 10 and the two buffer strips 11, the two pressing strips 10 and the buffer strips 11 lock the position of the motor body 2, the base 1 and the sound insulation cover 3 surround each other, and the motor body 2 is sealed. By setting the drainage pipe 5, the diverter pipe 4 and the fan 8, the fan 8 is powered on and runs, so that the external air enters the interior of the sound insulation cover 3 along the drainage pipe 5 and the diverter pipe 4 on one side, drives the air around the motor body 2 to flow, and flows out from the drainage pipe 5 and the diverter pipe 4 on the other side to dissipate heat to the motor body 2, thereby effectively solving the problems existing in the prior art. Then, by setting the base 1 and the sound insulation cover 3, the top surface of the base 1 and the inner wall of the sound insulation cover 3 are both provided with a sound insulation layer 12, and the sound insulation layer 12 includes a first sound insulation board 1201, sound insulation cotton 1202 and a second sound insulation board 1203. When the noise propagates to the outside, the noise passes through the second sound insulation board 1203 and the sound insulation cotton 1202, and the sound insulation cotton 1202 absorbs the noise. At the same time, the punching sizes of the surfaces of the first sound insulation board 1201 and the second sound insulation board 1203 are different, and the inner wall of the sound insulation cover 3 is provided with multiple inclined grooves 13, so that the noise is reduced in the propagation space, and the noise is eliminated through reflection and friction, meeting the noise reduction requirements.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing brushless motor, characterized in that: The invention comprises a base (1) for supporting a motor, two buffer strips (11) are installed on both sides of the top surface of the base (1), and a motor body (2) is provided on the top surfaces of the two, two pressing strips (10) are installed on the outer wall of the motor body (2), and the two ends of the two pressing strips (10) are fixedly connected to the two ends of the buffer strip (11), a soundproof cover (3) is installed on the top of the base (1), a sound insulation layer (12) is installed on the inner wall of the soundproof cover (3) and the top surface of the base (1), a curved drainage pipe (5) is installed on both sides of the soundproof cover (3), a plurality of shunt pipes (4) are installed between the adjacent ends of the two drainage pipes (5), and are connected to the soundproof cover (3), a fan (8) is installed at the end of one of the drainage pipes (5), and a through hole is reserved in the sound insulation layer (12) near the shunt pipe (4).

2. The noise reduction brushless motor according to claim 1, characterized in that: A support seat (9) is installed on one side of the top surface of the base (1), and a locking ring (6) for fixing the fan (8) is installed on the side of the support seat (9) away from the top surface of the base (1).

3. The noise reduction brushless motor according to claim 2, characterized in that: The two ends of the two pressing strips (10) are fixedly connected to the base (1) by bolts, and a gap is left between the outer wall of the pressing strip (10) and the inner wall of the sound insulation cover (3).

4. The noise reduction brushless motor according to claim 3, characterized in that: The inner wall of the soundproof cover (3) is provided with a plurality of inclined slots (13), and both sides of the bottom surface of the soundproof cover (3) are fixedly connected to the top surface of the base (1) by bolts.

5. The noise reduction brushless motor according to claim 4, characterized in that: The sound insulation layer (12) comprises a first sound insulation board (1201), sound insulation cotton (1202) and a second sound insulation board (1203), which are arranged in sequence from the outside to the inside. The surfaces of the first sound insulation board (1201) and the second sound insulation board (1203) are both provided with a plurality of punching holes, and the size of the punching holes on the surface of the first sound insulation board (1201) is smaller than the size of the punching holes on the second sound insulation board (1203).

6. The noise reduction brushless motor according to claim 5, characterized in that: A filter screen (7) is installed at one end of the fan (8).

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