A silent motor

Abstract

This utility model discloses a silent motor, including a silent motor body and a motor rotor. The motor body has a cylindrical outer casing with a fan-shaped silent groove inside the bottom support of the casing. The motor rotor is mounted in the center of the casing. A coil winding bracket is mounted on the outside of the rotor shaft, and a coil is mounted on the bracket. Two annular bearings are mounted between the inner wall of the coil winding bracket and the rotor shaft. A triangular bracket is mounted on the outside of the upper annular bearing, and an elastic clip is mounted in the center of the upper surface of the triangular bracket. The elastic clip is mounted on the outside of the rotor shaft. The silent motor body has a small overall size, which not only effectively reduces noise but also accelerates the heat generated during motor operation, greatly improving the motor's heat dissipation efficiency and ensuring stable motor operation.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a silent motor. Background Technology

[0002] An electric motor (commonly known as a "motor") is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It is divided into electric motors (symbol M) and generators (symbol G).

[0003] 1. According to the type of power supply: motors can be divided into DC motors and AC motors.

[0004] 2. DC motors can be classified according to their structure and working principle into brushless DC motors and brushed DC motors. Brushed DC motors can be further classified into permanent magnet DC motors and electromagnetic DC motors.

[0005] 3. Electromagnetic DC motors can be classified as: series-wound DC motors, shunt-wound DC motors, separately excited DC motors, and compound-wound DC motors. Permanent magnet DC motors can be classified as: rare-earth permanent magnet DC motors, ferrite permanent magnet DC motors, and AlNiCo permanent magnet DC motors. AC motors can also be classified as: single-phase motors and three-phase motors.

[0006] 4. Based on structure and working principle, motors can be classified into DC motors, asynchronous motors, and synchronous motors. Synchronous motors can be further divided into permanent magnet synchronous motors, reluctance synchronous motors, and hysteresis synchronous motors. Asynchronous motors can be classified into induction motors and AC commutator motors. Induction motors can be further divided into three-phase asynchronous motors, single-phase asynchronous motors, and shaded-pole asynchronous motors, etc. AC commutator motors can be further divided into single-phase series motors, AC / DC universal motors, and repulsion motors.

[0007] Motors of all sizes are used in various application scenarios, and their use is very common. During long-term use, motors generate high heat, and modern motors generally produce a lot of noise when running at high speeds, especially high-speed motors, the faster the speed, the louder the noise. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0008] The purpose of this invention is to provide a quiet motor that not only effectively reduces noise but also accelerates the dissipation of heat generated during motor operation, greatly improving the motor's heat dissipation efficiency and ensuring stable motor operation, thereby solving the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a silent motor, comprising a silent motor body and a motor rotor, wherein the silent motor body is provided with a motor housing, the motor housing is cylindrical, and the bottom support of the motor housing is an integral structure with the motor housing;

[0010] A motor rotor is fitted inside the center of the motor housing. The motor rotor is equipped with a rotor main shaft. A coil winding bracket is fitted outside the rotor main shaft. A coil is fitted on the coil winding bracket.

[0011] Two annular bearings are fitted between the inner wall of the coil winding bracket and the rotor main shaft. A triangular bracket is fitted above the outer surface of the upper annular bearing. An elastic clip is provided in the center of the upper surface of the triangular bracket. The elastic clip is installed on the outside of the rotor main shaft.

[0012] Preferably, the inner wall of the motor housing is provided with a permanent magnet positioning bracket and a permanent magnet. The permanent magnet positioning bracket is provided with permanent magnet mounting slots at equal intervals inside, and the permanent magnet is fitted into the permanent magnet mounting slots on the permanent magnet positioning bracket.

[0013] Preferably, the bottom end of the rotor spindle is located inside the mounting hole in the center of the bottom bracket of the motor housing.

[0014] Preferably, the outermost layer of the coil is provided with insulating oil paper.

[0015] Preferably, each arm of the triangular bracket has an internal mounting hole at its end, and a bearing mounting tube is provided in the center of the lower surface of the triangular bracket. The bearing mounting tube and the triangular bracket are an integral structure. A main shaft mounting hole is provided in the center of the bearing mounting tube in the vertical direction. An annular bearing is fitted inside the bearing mounting tube. A bushing is fitted at the bottom of the triangular bracket, and a pin is fitted on one side of the bushing. The bottom end of the bearing mounting tube is fitted with the top end of the bushing.

[0016] Preferably, there is a movable gap between the support end of the coil winding bracket and the permanent magnet.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The silent motor body is equipped with a motor housing, which is cylindrical. The bottom support of the motor housing is an integral structure with the motor housing, so that the entire motor has a good silent effect during high-speed operation.

[0019] (2) An elastic clip is provided in the center of the upper surface of the triangular bracket. The elastic clip is installed on the outside of the rotor spindle. The installed components are firmly restricted in the designated position by the elastic clip to ensure the stable operation of the motor.

[0020] (3) The overall size of the silent motor body is small, which not only has a good effect on reducing noise, but also accelerates the heat generated by the motor during operation, greatly improving the heat dissipation efficiency of the motor and ensuring the smooth operation of the motor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the silent motor structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the bottom structure of the silent motor of this utility model;

[0023] Figure 3 This is a top view of the silent motor of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the motor housing of this utility model;

[0025] Figure 5 This is a front view of the silent motor of this utility model;

[0026] Figure 6 This is a schematic diagram of the internal rotor structure of the silent motor of this utility model;

[0027] Figure 7 This is a schematic diagram of the permanent magnet positioning bracket structure of this utility model.

[0028] Figure 8 This is a schematic diagram of the triangular bracket of this utility model.

[0029] In the diagram: 1. Silent motor body; 2. Motor housing; 3. Triangular bracket; 4. Rotor spindle; 5. Elastic clip; 6. Permanent magnet; 7. Coil winding bracket; 8. Coil; 9. Circular bearing; 10. Bearing mounting tube; 11. Permanent magnet positioning bracket; 12. Motor rotor; 13. Bushing. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-8This utility model provides a technical solution: a silent motor, including a silent motor body 1 and a motor rotor 12. The silent motor body 1 is provided with a motor housing 2, which is cylindrical. The bottom support of the motor housing 2 is an integral structure with the motor housing 2, so that the entire motor has a good silent effect during high-speed operation.

[0032] The inner wall of the motor housing 2 is provided with a permanent magnet positioning bracket 11 and a permanent magnet 6. The permanent magnet positioning bracket 11 has permanent magnet mounting slots at equal intervals inside, and the permanent magnet 6 is fitted into the permanent magnet mounting slots on the permanent magnet positioning bracket 11.

[0033] The motor housing 2 has a motor rotor 12 installed in the center. The motor rotor 12 has a rotor shaft 4 installed on it. The outside of the rotor shaft 4 is a coil winding bracket 7. There is a movable gap between the bracket end of the coil winding bracket 7 and the permanent magnet 6. The coil winding bracket 7 is fitted with a coil 8. The outermost layer of the coil 8 is covered with insulating oil paper, which greatly improves the safety of the motor.

[0034] Two annular bearings 9 are fitted between the inner wall of the coil winding bracket 7 and the rotor main shaft 4. A triangular bracket 3 is fitted above the outer surface of the upper annular bearing 9. An elastic clip 5 is provided in the center of the upper surface of the triangular bracket 3. The elastic clip 5 is installed on the outside of the rotor main shaft 4. The installed components are firmly restricted in the designated position by the elastic clip 5 to ensure the stable operation of the motor. The bottom end of the rotor main shaft 4 is set inside the mounting hole in the center of the bottom bracket of the motor housing 2, so that the rotor always runs stably around the rotor main shaft 4.

[0035] Each arm of the triangular bracket 3 has an internal mounting hole at its end. A bearing mounting tube 10 is located in the center of the lower surface of the triangular bracket 3. The bearing mounting tube 10 and the triangular bracket 3 are an integral structure. A main shaft mounting hole is vertically located in the center of the bearing mounting tube 10. An annular bearing 9 is fitted inside the bearing mounting tube 10. A bushing 13 is fitted at the bottom of the triangular bracket 3. A pin is fitted on one side of the bushing 13 to ensure the stability of the installation between the components. The bottom end of the bearing mounting tube 10 is fitted with the top end of the bushing 13 to ensure that the coil winding bracket 7 and the bearing mounting tube 10 are tightly installed and that the rotor does not wobble during rotation.

[0036] The silent motor body 1 has a small overall size, which not only has a good effect on reducing noise, but also accelerates the heat generated by the motor during operation, greatly improving the heat dissipation efficiency of the motor and ensuring the smooth operation of the motor.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silent motor, comprising a silent motor body (1) and a motor rotor (12), characterized in that: The silent motor body (1) is provided with a motor housing (2), which is cylindrical, and the bottom support of the motor housing (2) is an integral structure with the motor housing (2); A motor rotor (12) is provided in the center of the motor housing (2). A rotor spindle (4) is provided on the motor rotor (12). A coil winding bracket (7) is provided on the outside of the rotor spindle (4). A coil (8) is provided on the coil winding bracket (7). Two annular bearings (9) are provided between the inner wall of the coil winding bracket (7) and the rotor main shaft (4). A triangular bracket (3) is provided on the upper outer side of the upper annular bearing (9). An elastic clip (5) is provided in the center of the upper surface of the triangular bracket (3). The elastic clip (5) is installed on the outside of the rotor main shaft (4).

2. A silent-type electric machine according to claim 1, characterized in that: The inner wall of the motor housing (2) is provided with a permanent magnet positioning bracket (11) and a permanent magnet (6). The permanent magnet positioning bracket (11) is provided with permanent magnet mounting slots at equal intervals inside. The permanent magnet (6) is fitted inside the permanent magnet mounting slot on the permanent magnet positioning bracket (11).

3. A silent-type electric machine according to claim 1, characterized in that: The bottom end of the rotor spindle (4) is located inside the mounting hole in the center of the bottom bracket of the motor housing (2).

4. A silent-type electric machine according to claim 1, characterized in that: The outermost layer of the coil (8) is provided with insulating oil paper.

5. A silent machine as claimed in claim 1, wherein: Each arm of the triangular bracket (3) has an installation hole inside its end. A bearing mounting tube (10) is provided in the center of the lower surface of the triangular bracket (3). The bearing mounting tube (10) and the triangular bracket (3) are an integral structure. A main shaft mounting hole is provided in the center of the bearing mounting tube (10) in the vertical direction. A ring bearing (9) is fitted inside the bearing mounting tube (10). A bushing (13) is fitted below the triangular bracket (3). A pin is fitted on one side of the bushing (13). The bottom end of the bearing mounting tube (10) is fitted with the top end of the bushing (13).

6. A silent machine as claimed in claim 1, characterized in that: The coil winding bracket (7) has an adjustable gap between the bracket end and the permanent magnet (6).

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