High-voltage brushless motor without controller

Abstract

The utility model discloses a high-voltage brushless motor without a controller, which comprises a casing and an end cover, the casing and the end cover are enclosed to form a mounting cavity of a stator and a rotor, and the high-voltage brushless motor without the controller is characterized in that the motor adopts controller-free arrangement, three phases of the motor are led out through leads, three wiring holes are correspondingly arranged on the end cover, the wiring holes are stepped holes, and the stepped holes are connected with the stator and the rotor. The three end covers are respectively provided with a cable gland, main bodies of the cable glands are located on the outer sides of the end covers, sealing rings of the cable glands are located in the stepped holes, locking nuts of the cable glands are located on the inner sides of the end covers, and the locking nuts of the three cable glands are provided with anti-rotation structures in a matched mode. According to the utility model, a controller-free mode is adopted, three phases of the motor are led out, the cable gland is used for sealing, and a plurality of structures guarantee the protection capability.

Description

Technical Field

[0001] The utility model relates to an improved invention of a brushless motor, in particular to an improved invention of a controller-free high-voltage brushless motor. Background Art

[0002] The existing high-voltage brushless motor for the condensing fan adopts an external controller, which has disadvantages in terms of space occupation and ease of use, or adopts a built-in controller, which has the defects of complex connection structure and inconvenient disassembly and assembly. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a controller-free high-voltage brushless motor.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the controllerless high-voltage brushless motor comprises a housing and an end cover, the housing and the end cover enclose a mounting cavity for a stator and a rotor, and is characterized in that the motor is arranged without a controller, the three phases of the motor are externally led through wires, three wiring holes are arranged on the corresponding end cover, the wiring holes are step holes, and are respectively provided with glands, the main body of the gland is located on the outside of the end cover, the sealing ring of the gland is located in the step hole, the locking nut of the gland is located on the inside of the end cover, and the locking nuts of the three glands are provided with anti-rotation structures.

[0005] The anti-rotation structure is a convex rib integrally formed on the end cover, and the convex rib blocking is arranged on one side of the locking nut.

[0006] The flange surface of the end cover is matched and fitted with the upper edge of the casing, and a ring body is also provided at the lower end of the end cover, which is matched and extends into the casing and is tightly fitted with the inner wall of the casing.

[0007] The area where the end cover is mounted with the gland is flush with the end cover flange surface.

[0008] The beneficial effect of the utility model is that the improved controller-free high-voltage brushless motor adopts a controller-free method to lead out the three phases of the motor, which is sealed with a gland, and multiple structures ensure the protection capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a structural exploded view of the utility model.

[0012] Figure 3 This is a structural diagram of the end cover of the utility model.

[0013] Figure 4 This is an assembly diagram of the end cover and the cable gland of the utility model. DETAILED DESCRIPTION

[0014] The accompanying drawings show the structure of the utility model, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-4 The controller-free high-voltage brushless motor includes a housing 1 and an end cover 2. The housing 1 and the end cover 2 enclose a mounting cavity for a stator and a rotor. The motor is configured without a controller. The three phases of the motor are led outward through wires. The corresponding end cover 2 is provided with three wiring holes 3. The wiring holes 3 are step holes and are respectively provided with glands 4. The main body of the gland 4 is located on the outside of the end cover 2, the sealing ring of the gland 4 is located in the step hole, the locking nut 5 of the gland 4 is located on the inside of the end cover 2, and the locking nuts 5 of the three glands 4 are provided with anti-rotation structures 6.

[0015] The utility model adopts a controller-free method to lead out the three phases of the motor and seal and fix them on the end cover 2 with a gland 4. It is easy to install and has good sealing performance. At the same time, the locking nut 5 of the gland 4 is equipped with an anti-rotation structure 6, and the connection is stable and reliable.

[0016] As a specific implementation of further improvement, the anti-rotation structure 6 is a convex rib integrally formed on the end cover 2, and the convex rib blocking is arranged on one side of the locking nut 5 to limit the self-rotation of the locking nut 5. Preferably, the convex rib acts on three locking nuts 5 at the same time.

[0017] As a specific implementation of further improvement, the flange surface of the end cover 2 matches and fits with the upper edge of the casing 1, and a ring body 7 is also provided at the lower end of the end cover 2. The ring body 7 matches and extends into the casing 1 and fits tightly with the inner wall of the casing 1 to improve the sealing between the casing 1 and the end cover 2.

[0018] As a specific implementation of the further improvement, the area of ​​the end cover 2 where the gland 4 is installed is flush with the flange surface of the end cover 2, and space for installing the gland 4 is reserved to reasonably control the axial dimension.

[0019] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A controller-free high-voltage brushless motor, comprising a housing and an end cover, wherein the housing and the end cover enclose a mounting cavity for a stator and a rotor, wherein: The motor is set up without a controller, and the three phases of the motor are led out through wires. Three wiring holes are provided on the corresponding end cover. The wiring holes are step holes and are respectively equipped with glands. The main body of the gland is located on the outside of the end cover, the sealing ring of the gland is located in the step hole, and the locking nut of the gland is located on the inside of the end cover. The locking nuts of the three glands are equipped with anti-rotation structures.

2. The controller-less high-voltage brushless motor according to claim 1, characterized in that: The anti-rotation structure is a convex rib integrally formed on the end cover, and the convex rib blocking is arranged on one side of the locking nut.

3. The controller-less high-voltage brushless motor according to claim 1, characterized in that: The flange surface of the end cover is matched and fitted with the upper edge of the casing, and a ring body is also provided at the lower end of the end cover, which is matched and extends into the casing and is tightly fitted with the inner wall of the casing.

4. The controller-less high-voltage brushless motor according to claim 1, characterized in that: The area where the end cover is mounted with the gland is flush with the end cover flange surface.

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