Claw pole type permanent magnet synchronous motor

Abstract

The utility model relates to the field of motors, and discloses a claw pole type permanent magnet synchronous motor, which comprises a motor body and an output shaft positioned in the motor body, a jack is arranged on the motor body, one end of the output shaft penetrates through the jack and then extends out of the motor body, and the other end of the output shaft is connected with the motor body. The motor body is provided with a sealing structure capable of sealing the insertion hole, the sealing structure comprises a sealing sleeve arranged outside the output shaft in a sleeving mode, and the lower end of the sealing sleeve is connected with the motor body in an abutting-against mode, and the sealing sleeve is arranged outside the output shaft in a sleeving mode and is connected with the surface of the motor body in an abutting-against mode through the bottom of the sealing sleeve connected with the surface of the motor body in an abutting-against mode. The gap between the output shaft and the jack is sealed, so that the probability that moisture enters the motor from the gap between the output shaft and the jack when the motor is used in a humid environment is reduced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a claw-pole permanent magnet synchronous motor. Background Art

[0002] Claw-pole permanent magnet synchronous motors are widely used in various fields, such as rotary fans, air conditioners and heaters, mahjong machines, various constant-speed or low-speed automation instruments, scientific and educational instruments, and automatic curtain machines.

[0003] A Chinese patent with announcement number CN202004608U discloses a claw-pole permanent magnet synchronous motor, including a transmission shaft, a reduction mechanism, a coil, a circular magnet and a motor box. The rotating shaft is connected to the reduction mechanism, the coil is wrapped around the circular magnet, and the transmission shaft, coil and magnet are jointly arranged at the center of the motor box.

[0004] The above structure can drive the transmission shaft to rotate through the reduction mechanism, thereby driving other components connected to the rotating shaft to rotate. However, if the above motor is used in a humid environment, moisture will enter the motor box from the transmission shaft, thereby reducing the service life of the motor. Utility Model Content

[0005] The utility model aims at the disadvantage of the prior art that when used in a humid environment, moisture may enter the motor box from the transmission shaft, thereby reducing the service life of the motor, and provides a claw-pole permanent magnet synchronous motor with a moisture-proof sealing structure.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A claw-pole permanent magnet synchronous motor comprises a motor body and an output shaft located in the motor body, wherein a plug hole is arranged on the motor body, one end of the output shaft passes through the plug hole and extends to the outside of the motor body, and a sealing structure for sealing the plug hole is arranged on the motor body, wherein the sealing structure comprises a sealing sleeve arranged on the outer sleeve of the output shaft, and the lower end of the sealing sleeve abuts against the motor body.

[0008] By adopting the above scheme, the gap between the output shaft and the socket can be sealed by a sealing sleeve which is sleeved on the outer wall of the output shaft and abuts against the surface of the motor body at its lower end, thereby reducing the moisture from entering the motor through the gap between the output shaft and the socket when the motor is used in a humid environment, thereby increasing the service life of the motor.

[0009] Preferably, the end of the output shaft extends out of the sealing sleeve, and a connecting component for connecting to a rotating shaft of another component is provided at the position where the output shaft extends out of the sealing sleeve.

[0010] Preferably, the connecting component comprises a connecting sleeve, the connecting sleeve is provided with a mounting hole for partial insertion of the output shaft, and a fixing component for fixing the connecting sleeve and the output shaft is also provided between the connecting sleeve and the output shaft.

[0011] By adopting the above scheme, the output shaft can be connected to the rotating shafts of other components through the provided connecting sleeve, and the provided fixing component can fix the position of the output shaft when the output shaft is inserted into the connecting sleeve. At the same time, the provided fixing component can also drive the connecting sleeve to rotate when the output shaft rotates, so that the connecting sleeve drives the rotating shafts in other components to rotate.

[0012] Preferably, the fixing component includes a first fixing hole symmetrically arranged on the outer ring wall of the connecting sleeve, a second fixing hole horizontally penetrated on the output shaft, and a fixing shaft simultaneously penetrating the two first fixing holes and the second fixing holes.

[0013] By adopting the above scheme, when the output shaft is inserted into the connecting sleeve, the fixed shaft can be aligned with the first fixing hole on the fixed connecting sleeve and the fixed shaft can be inserted therein. After the fixed shaft is inserted into the first fixing hole, the output shaft is rotated so that the second fixing hole on the output shaft is aligned with the first fixing hole inserted into the connecting sleeve. At this time, the fixed shaft can be inserted into the second fixing hole, and the fixed shaft passes through the second fixing hole and the first fixing hole on the other side of the connecting strip, thereby achieving fixation between the connecting sleeve and the output shaft, reducing the probability of the output shaft detaching from the connecting sleeve, and at the same time enabling the output shaft to drive the connecting sleeve to rotate together when rotating.

[0014] Preferably, the fixed shaft is in interference fit with at least one first fixing hole and / or the second fixing hole.

[0015] By adopting the above solution, the fixed shaft is inserted into the first fixing hole and the second fixing hole through interference fit, so that the fixed shaft is installed in the first fixing hole and the second fixing hole more stably, and the probability of the fixed shaft coming out of the first fixing hole and the second fixing hole is reduced.

[0016] Preferably, a protective component is provided between the connecting sleeve and the output shaft to prevent the output shaft in the connecting sleeve from rusting.

[0017] Preferably, the protective component comprises a protective sleeve sleeved at one end of the output shaft inserted into the connecting sleeve, a receiving groove for inserting the protective sleeve is provided in the connecting sleeve, and a through hole for the fixed shaft to pass through is provided on the protective sleeve.

[0018] By adopting the above scheme, the end of the output shaft inserted into the connecting sleeve can be protected by the protective sleeve sleeved on the output shaft, thereby reducing the probability of the output shaft rusting when the motor is used in a humid environment, thereby increasing the service life of the motor.

[0019] The utility model adopts the above technical scheme and has significant technical effects: the gap between the output shaft and the plug hole can be sealed by the sealing sleeve whose lower end is sleeved on the outer wall of the output shaft and abuts against the surface of the motor body, thereby reducing the moisture entering the motor from the gap between the output shaft and the plug hole when the motor is used in a humid environment, thereby improving the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an axonometric diagram of a claw-pole permanent magnet synchronous motor in this embodiment;

[0021] Figure 2 is a disassembled diagram of a claw-pole permanent magnet synchronous motor in this embodiment;

[0022] Figure 3 is a top view of a claw-pole permanent magnet synchronous motor in this embodiment;

[0023] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0024] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Motor body; 2. Output shaft; 3. Plug hole; 4. Sealing sleeve; 5. Connecting sleeve; 6. Square hole; 701. First fixing hole; 702. Second fixing hole; 8. Fixed shaft; 9. Protective sleeve; 10. Receiving groove; 11. Through hole. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Example

[0027] A claw-pole permanent magnet synchronous motor, reference Figure 1-Figure 4 , including a motor body 1 and an output shaft 2 located in the motor body 1, a plug hole 3 is provided on the motor body 1, one end of the output shaft 2 passes through the plug hole 3 and extends to the outside of the motor body 1, and a sealing structure for sealing the plug hole 3 is provided on the motor body 1. The sealing structure includes a sealing sleeve 4 arranged on the outer sleeve of the output shaft 2, and the lower end of the sealing sleeve 4 abuts against the motor body 1.

[0028] refer to Figure 2The end of the output shaft 2 extends out of the sealing sleeve 4, and a connecting component for connecting with the rotating shaft of other components is arranged at the position where the output shaft 2 extends out of the sealing sleeve 4. The connecting component includes a connecting sleeve 5. The connecting sleeve 5 is provided with a mounting hole for partial insertion of the output shaft 2 and a square hole 6 for inserting the rotating shaft of other components. A fixing component for fixing the two is also arranged between the connecting sleeve 5 and the output shaft 2. The fixing component includes a first fixing hole 701 symmetrically arranged on the outer ring wall of the connecting sleeve 5, a second fixing hole 702 horizontally penetrated on the output shaft 2, and a fixing shaft 8 that simultaneously penetrates the two first fixing holes 701 and the second fixing hole 702. The fixing shaft 8 is plug-fitted with at least one of the first fixing hole 701 and / or the second fixing hole 702 by interference. In this embodiment, the fixing shaft 8 is plug-fitted with the first fixing hole 701 and the second fixing hole 702 by interference.

[0029] refer to Figure 3-Figure 4 A protective component is also provided between the connecting sleeve 5 and the output shaft 2 to prevent the output shaft 2 in the connecting sleeve 5 from rusting. The protective component includes a protective sleeve 9 sleeved at one end of the output shaft 2 inserted into the connecting sleeve 5, a receiving groove 10 for inserting the protective sleeve 9 is provided in the connecting sleeve 5, and a through hole 11 for the fixed shaft 8 to pass through is provided on the protective sleeve 9.

[0030] Specific installation process: First, the sealing sleeve 4 is downwardly sleeved on the outer wall of the output shaft 2. When the bottom of the sealing sleeve 4 abuts against the surface of the motor body 1, the installation of the sealing sleeve 4 is completed, thereby reducing the probability of moisture entering the inside of the motor from the gap between the output shaft 2 and the socket 3 when the motor is used in a humid environment, thereby increasing the service life of the motor. After the sealing sleeve 4 is installed, the protective sleeve 9 can be sleeved on the output shaft 2 first. In the process of sleeve 9 being sleeved on the output shaft 2, the protective sleeve 9 needs to be rotated so that the through hole 11 on the protective sleeve 9 is aligned with the second fixing hole 702 on the output shaft 2. After that, the connecting sleeve 5 can be sleeved on the output shaft 2. At this time, the protective sleeve 9 will be inserted into the accommodating groove 10 in the connecting sleeve 5. In the process of sleeve 5 being sleeved on the output shaft 2 , it is also necessary to rotate the connecting sleeve 5 so that the first fixing hole 701 on the connecting sleeve 5 is aligned with the through hole 11 on the protective sleeve 9 and the second fixing hole 702 on the output shaft 2. When the first fixing hole 701, the through hole 11 and the second fixing hole 702 are aligned, the fixing shaft 8 can be inserted into the through hole 11 and the second fixing hole 702 through the first fixing hole 701 on one side of the connecting sleeve 5. Because the second fixing hole 702 is a through setting, after the fixing shaft 8 passes through the second fixing hole 702, it will pass through the first fixing hole 701 on the other side of the connecting sleeve 5, thereby completing the fixation between the connecting sleeve 5 and the output shaft 2, so that the output shaft 2 can drive the connecting sleeve 5 to move and rotate during the rotation process. At the same time, it can also reduce the probability of the output shaft 2 being detached from the connecting sleeve 5 after being inserted into the connecting sleeve 5.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A claw-pole permanent magnet synchronous motor, comprising a motor body (1) and an output shaft (2) located in the motor body (1), wherein a plug hole (3) is provided on the motor body (1), and one end of the output shaft (2) passes through the plug hole (3) and extends to the outside of the motor body (1), characterized in that: A sealing structure capable of sealing the jack (3) is provided on the motor body (1), the sealing structure comprising a sealing sleeve (4) provided on the outer sleeve of the output shaft (2), the lower end of the sealing sleeve (4) abutting against the motor body (1).

2. The claw-pole permanent magnet synchronous motor according to claim 1, characterized in that: The end of the output shaft (2) extends out of the sealing sleeve (4), and a connecting component for connecting to the rotating shaft of another component is provided at the position where the output shaft (2) extends out of the sealing sleeve (4).

3. The claw-pole permanent magnet synchronous motor according to claim 2, characterized in that: The connecting component comprises a connecting sleeve (5), a mounting hole for partially inserting the output shaft (2) is provided in the connecting sleeve (5), and a fixing component for fixing the connecting sleeve (5) and the output shaft (2) is also provided between the connecting sleeve (5) and the output shaft (2).

4. The claw-pole permanent magnet synchronous motor according to claim 3, characterized in that: The fixing component comprises a first fixing hole (701) symmetrically arranged on the outer ring wall of the connecting sleeve (5), a second fixing hole (702) horizontally penetrated on the output shaft (2), and a fixing shaft (8) simultaneously penetrating the two first fixing holes (701) and the second fixing holes (702).

5. The claw-pole permanent magnet synchronous motor according to claim 4, characterized in that: The fixed shaft (8) is interference-fitted with at least one first fixing hole (701) and / or the second fixing hole (702).

6. The claw-pole permanent magnet synchronous motor according to claim 4, characterized in that: A protective component is also provided between the connecting sleeve (5) and the output shaft (2) to prevent the output shaft (2) in the connecting sleeve (5) from rusting.

7. The claw-pole permanent magnet synchronous motor according to claim 6, characterized in that: The protective component comprises a protective sleeve (9) sleeved at one end of the output shaft (2) inserted into the connecting sleeve (5), a receiving groove (10) for inserting the protective sleeve (9) is provided in the connecting sleeve (5), and a through hole (11) for the fixed shaft (8) to pass through is provided on the protective sleeve (9).

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