Universal brushless motor
By designing the replaceable back cover and inner cover structure, a high-voltage electronically controlled independent space is formed, which solves the problem that high-voltage and low-voltage brushless motors cannot be converted by fans, and realizes the conversion of high and low-voltage and hardware without changing the fan size. Universality improves versatility.
Patent Information
- Application Number
- CN202420854134.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing high-voltage and low-voltage brushless motors for fans cannot achieve high-voltage conversion due to different structures and installation sizes, resulting in the inability to share hardware and the low-voltage platform cannot be upgraded to a high-voltage platform without changing the fan size.
A universal brushless motor is designed, which includes a replaceable rear cover and inner cover to form a high voltage electronically controlled independent space, the integrated module is in the rear cover, tightened by the ring seat and mounting foot, the stator and inner cover By cooperating with the positioning tube and the positioning column, hardware universality and size maintenance are achieved.
It has achieved direct upgrade to a high-pressure structure based on the original low-pressure structure, and the versatility of parts reaches more than 85%, meeting the conversion of high and low-pressure without changing the fan size, enhancing versatility.
Smart Images
Figure CN222147380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improved invention of a brushless motor, in particular to an improved invention of a universal brushless motor suitable for a fan. Background Art
[0002] The existing high-voltage brushless motors and low-voltage brushless motors for fans have different structures and assembly installation dimensions, so high-low voltage conversion cannot be performed. That is, the motor casing, stator, rotor and other hardware cannot be shared to directly upgrade the original low-voltage platform to a high-voltage platform, and cannot meet the customer's needs to achieve high-voltage platform without changing the size of the fan. 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 universal brushless motor capable of high-low voltage conversion.
[0004] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions: this universal brushless motor includes a casing, a stator and a rotor are arranged in the casing, and is characterized in that a rear cover is replaceably arranged on the upper end of the casing, an inner cover is arranged between the rear cover and the casing, an independent high-voltage electric control space is formed between the inner cover and the rear cover, an integrated module is arranged in the corresponding rear cover, the inner cover is radially limited in the casing, and the inner cover is axially limited between the rear cover and the stator.
[0005] The lower end of the rear cover is fitted into the inner wall of the casing and extends into the casing, and abuts against the upper end of the inner cover. The upper end of the inner cover is provided with a circle of bosses, and the lower end of the rear cover is matched and located between the bosses and the casing.
[0006] A ring seat is arranged on the outer wall of the rear cover, the ring seat is matched and fitted with the upper edge of the casing, and mounting feet which are firmly connected to the ring seat and the upper edge of the casing are arranged on the ring seat.
[0007] The upper end of the stator is provided with a circle of positioning tubes, and the lower end of the inner cover is correspondingly provided with positioning columns, which are sleeved and matched with the positioning tubes.
[0008] The beneficial effect of the utility model is that the improved universal brushless motor can be directly upgraded to a high-voltage structure based on the original low-voltage structure, the module is integrated in the back cover, the parts commonality is more than 85%, and the corresponding casing, stator, rotor and other hardware are all common; it does not affect the original assembly installation size, satisfies the customer's need not to change the fan size, realizes the high-low voltage conversion of the brushless motor, and enhances the commonality. 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 The structure of the utility model is decomposed Figure 1 .
[0012] Figure 3 The structure of the utility model is decomposed Figure 2 .
[0013] Figure 4 This is a structural diagram of the low-voltage rear cover 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 universal brushless motor comprises a housing 1, wherein a stator 2 and a rotor 3 are arranged in the housing 1, a rear cover 4 is replaceably arranged on the upper end of the housing 1, an inner cover 5 is arranged between the rear cover 4 and the housing 1, and an independent high-voltage electric control space is formed between the inner cover 5 and the rear cover 4, which is safe and reliable; an integrated module 6 is arranged in the corresponding rear cover 4, which has a compact structure and is easy to replace; the inner cover 5 is radially limited in the housing 1, and axially limited between the rear cover 4 and the stator 2; the inner cover 5 is pressed between the rear cover 4 and the stator 2, and can also play a circumferential limit.
[0015] The high-low voltage conversion principle of the utility model can be achieved by disassembling and replacing the back cover 4 installed with the integrated module 6, and selectively installing the inner cover 5 which is contact-positioned by the casing 1, the back cover 4 and the stator 2. That is, the low-voltage back cover 4 does not need to be equipped with the inner cover 5, and the high-voltage inner cover 5 is equipped with the inner cover 5 to form an independent space for high-voltage electrical control. When the high-low voltage is converted, the casing 1, the stator 2, the rotor 3 and other hardware are all universal, and the overall installation size is not affected.
[0016] As a specific implementation of further improvement, the lower end of the back cover 4 fits into the inner wall of the casing 1, extends into the casing 1, and abuts against the upper end of the inner cover 5. Correspondingly, a circle of bosses 7 are provided on the upper end of the inner cover 5, and the lower end of the back cover 4 is matched and located between the bosses 7 and the casing 1, so as to realize the axial upper position limitation of the back cover 4 on the inner cover 5.
[0017] As a specific implementation of further improvement, a ring seat 8 is provided on the outer wall of the back cover 4, and the ring seat is matched and fit with the upper edge of the casing 1, and mounting feet 9 that are fastened to the ring seat and the upper edge of the casing 1 are provided. The mounting feet 9 are fixed with bolts, and preferably four mounting feet 9 are provided at intervals.
[0018] As a specific implementation of further improvement, a circle of positioning tubes 10 is provided at the upper end of the stator 2, and a positioning column 11 is correspondingly provided at the lower end of the inner cover 5. The positioning column 11 is sleeved and matched with the positioning tube 10, so as to realize the axial downward limitation of the stator 2 to the inner cover 5 and further improve the circumferential limitation.
[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 universal brushless motor, comprising a housing, wherein a stator and a rotor are arranged in the housing, characterized in that: The upper end of the casing is replaceably provided with a rear cover, an inner cover is provided between the rear cover and the casing, an independent high-voltage electrical control space is formed between the inner cover and the rear cover, an integrated module is correspondingly provided in the rear cover, the inner cover is radially limited in the casing, and the inner cover is axially limited between the rear cover and the stator.
2. The universal brushless motor according to claim 1, characterized in that: The lower end of the rear cover is fitted into the inner wall of the casing and extends into the casing, and abuts against the upper end of the inner cover. The upper end of the inner cover is provided with a circle of bosses, and the lower end of the rear cover is matched and located between the bosses and the casing.
3. The universal brushless motor according to claim 2, characterized in that: A ring seat is arranged on the outer wall of the rear cover, the ring seat is matched and fitted with the upper edge of the casing, and mounting feet which are firmly connected to the ring seat and the upper edge of the casing are arranged on the ring seat.
4. The universal brushless motor according to claim 1, characterized in that: The upper end of the stator is provided with a circle of positioning tubes, and the lower end of the inner cover is correspondingly provided with positioning columns, which are sleeved and matched with the positioning tubes.