Low-rotating-speed brushless washing machine motor
By employing structures such as fixed ears, limiting arc-shaped columns, and connecting keys in the motor of the mini washing machine, the problem of unstable connection between the stator bracket, the magnet bracket, and the electronic control board has been solved, achieving stable connection of the motor and simplifying the structure, reducing noise and improving the user experience.
Patent Information
- Application Number
- CN202520379856.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing mini washing machine motors suffer from problems such as unstable connections, complex structures, and high noise levels. In particular, the connection between the stator support, magnet support, and electronic control board in external rotor DC brushless motors is not stable enough.
By connecting the stator support to the magnet support at the bottom and to the control board at the top, and using structures such as fixing ears, limiting arc-shaped columns and connecting keys, a stable connection between the stator support, the magnet support and the control board is achieved, simplifying the overall structure.
It achieves stable motor connection and simplified structure, reduces noise, and improves the motor's operational stability and waterproof performance.
Smart Images
Figure CN223885017U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to brushless motor technical field especially relates to a low speed brushless washing machine motor. BACKGROUND
[0002] At present, mini washing machine with its small size, save space, convenient to carry, good washing effect, cheaper than traditional large washing machine and so on, in the family cleaning field more and more popular. The motor type used in the existing mini washing machine is mostly asynchronous motor or brush motor, its volume and energy consumption are large, and it is easy to run jitter when using, and the noise is large, and there is also the problem of poor waterproof effect. Therefore, there is an outer rotor direct current brushless motor in the prior art, which can solve the defects of jitter and noise, but the connection between the stator support, the magnetic steel support and the electric control board in this type of brushless motor is not stable, and the connection structure is complex. UTILITY MODEL CONTENTS
[0003] The utility model aims at the shortcomings of prior art, provides a low speed brushless washing machine motor, the connection between the stator support bottom and the magnetic steel support, the upper end and the electric control board makes the whole connection structure stable, and the structure is simplified.
[0004] To achieve the purpose, the utility model adopts the technical scheme of:
[0005] A low speed brushless washing machine motor, comprising a stator support and a magnetic steel support, the magnetic steel support is provided with a magnetic ring, the magnetic ring is provided with a rotor shell, the inner wall of both ends of the stator support is provided with a first circular groove and a second circular groove respectively, the first circular groove and the second circular groove are provided with a first bearing and a second bearing respectively, the motor shaft is connected between the first bearing and the second bearing, the motor shaft is connected with the rotor shell after passing through the second bearing, the upper end of the stator support is connected with an electric control board, the magnetic steel support is connected to the lower end of the stator support, the stator support comprises a support cylinder, the middle part of the support cylinder is provided with a connecting plate, the outer edge of the upper end of the support cylinder is uniformly provided with at least two fixing ears corresponding to the upper side of the connecting plate, the outer edge of the lower end of the support cylinder is uniformly provided with at least two limiting arc columns corresponding to the lower side of the connecting plate, the connecting groove corresponding to the fixing ear is formed between the adjacent two limiting arc columns, the electric control board is connected between the connecting groove and the fixing ear, the inner wall of the magnetic steel support is provided with a key groove, and the outer wall of one limiting arc column is provided with a connecting key matched with the key groove.
[0006] As a further optimization of the above technical scheme: the fixing ear is provided with a connecting hole, and the electric control board is connected with the connecting hole through the connecting groove by rivets or screws.
[0007] As a further optimization of the above technical solutions: the limiting arc-shaped column comprises an arc-shaped sleeve, and a support plate is arranged in the arc-shaped sleeve.
[0008] As a further optimization of the above technical solutions: three fixing ears are uniformly arranged on the outer edge of the upper end of the bracket cylinder, and three limiting arc-shaped columns are uniformly arranged on the outer edge of the lower end of the bracket cylinder, and the three limiting arc-shaped columns are arranged in a staggered manner with the three fixing ears.
[0009] As a further optimization of the above technical solutions: a limiting snap ring is arranged on the upper end of the first bearing corresponding to the motor shaft, and the two ends of the limiting snap ring are connected to the middle part of the first bearing.
[0010] Compared with the prior art, the utility model discloses a stator support and a magnetic steel support, the magnetic steel support is equipped with a magnetic ring, the magnetic ring is equipped with a rotor shell, the both ends inner wall of stator support is equipped with first circular groove and second circular groove respectively, first circular groove and second circular groove are installed with first bearing and second bearing respectively, and the motor shaft is connected between first bearing and second bearing, and the motor shaft is connected with rotor shell after passing through second bearing. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the structure schematic diagram of the utility model.
[0012] Figure 2 It is the exploded structure schematic diagram of the utility model.
[0013] Figure 3 It is the sectional view of the utility model.
[0014] Figure 4 It is the structure schematic diagram of the stator support of the utility model. PREFERRED EMBODIMENT
[0015] The utility model will be further explained in connection with the drawings and specific embodiment.
[0016] As Figures 1-4As shown, a low-speed brushless washing machine motor, comprising a stator support 1 and a magnetic steel support 2, the magnetic steel support 2 is provided with a magnetic ring 3, the magnetic ring 3 is provided with a rotor shell 4, the inner wall of both ends of the stator support 1 is provided with a first circular groove and a second circular groove, respectively, the first circular groove and the second circular groove are respectively provided with a first bearing 5 and a second bearing 6, the first bearing 5 and the second bearing 6 are connected by a motor shaft 7, the motor shaft 7 is connected with the rotor shell 4 after passing through the second bearing 6, the upper end of the stator support 1 is connected with an electric control board 8, the magnetic steel support 2 is connected to the lower end of the stator support 1, the stator support 1 comprises a support cylinder 11, the middle part of the support cylinder 11 is provided with a connecting plate 12, the outer edge of the upper end of the support cylinder 11 is uniformly provided with at least two fixing ears 13 corresponding to the upper side of the connecting plate 12, the outer edge of the lower end of the support cylinder 11 is uniformly provided with at least two limiting arc-shaped columns 14 corresponding to the lower side of the connecting plate 12, the connecting grooves 15 corresponding to the fixing ears 13 are formed between the adjacent two limiting arc-shaped columns 14, the electric control board 8 is connected between the connecting grooves 15 and the fixing ears 13, the inner wall of the magnetic steel support 2 is provided with a key groove 16, one of the limiting arc-shaped columns 14 is provided with a connecting key 17 matched with the key groove 16, the bottom end of the stator support 1 is connected with the magnetic steel support 2 through the connecting key 17 and the key groove 16, and the upper end is connected with the electric control board 8 through rivets and fixing ears 13, so that the overall connection structure is stable and the structure is simplified.
[0017] In the embodiment, the fixing ear 13 is provided with a connecting hole, and the electric control board 8 is connected with the connecting hole through rivets 18 or screws and the connecting groove 15. Compared with the prior art, the fixing ear 13 is arranged on the stator support 1 in the embodiment, and the electric control board 8 is fixed on the upper end of the stator support 1 after being connected with the connecting hole through rivets 18 or screws.
[0018] In the embodiment, the limiting arc-shaped column 14 comprises an arc-shaped sleeve, and the arc-shaped sleeve is provided with a support plate 18. The support plate 18 can strengthen the strength of the limiting arc-shaped column 14, and the magnetic steel support 2 and the stator support 1 are connected through the limiting arc-shaped column 14, a key groove 16 and a connecting key 17.
[0019] In the embodiment, the upper end of the support cylinder 11 is uniformly provided with three fixing ears 13, and the lower end of the support cylinder 11 is uniformly provided with three limiting arc-shaped columns 14. The three limiting arc-shaped columns 14 and the three fixing ears 13 are arranged staggered, which can further strengthen the connectivity and stability between the stator support 1, the electric control board 8 and the magnetic steel support 2.
[0020] In the embodiment, the motor shaft 7 is provided with a limit snap ring 9 at the upper end of the first bearing 5, the two ends of the limit snap ring 9 are connected with the middle part of the first bearing 5, the connection stability of the motor shaft 7 and the first bearing 5 can be improved through the limit snap ring, the connection length of the motor shaft 7 can be determined, and the axial sliding of the motor shaft 7 or the first bearing 5 and the second bearing 6 is prevented.
[0021] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the existing technology according to the concept of the present application shall fall within the protection scope of the present application.
Claims
1. A low-speed brushless washing machine motor, comprising a stator bracket and a magnet bracket, wherein a magnetic ring is sleeved on the magnet bracket, and a rotor housing is sleeved on the magnetic ring; a first circular groove and a second circular groove are respectively formed on the inner walls of both ends of the stator bracket; a first bearing and a second bearing are respectively installed in the first circular groove and the second circular groove; and a motor shaft passes through the first bearing and the second bearing, characterized in that: The motor shaft is connected with the rotor shell after passing through the second bearing, the upper end of the stator support is connected with an electric control board, the magnetic steel support is connected with the lower end of the stator support, the stator support comprises a support cylinder, a connecting plate is arranged in the middle of the support cylinder, at least two fixing ears are uniformly arranged on the outer edge of the upper end of the support cylinder and correspond to the upper side of the connecting plate, at least two limiting arc-shaped columns are uniformly arranged on the outer edge of the lower end of the support cylinder and correspond to the lower side of the connecting plate, a connecting groove corresponding to the fixing ear is formed between the adjacent two limiting arc-shaped columns, the electric control board is connected at the position between the connecting groove and the fixing ear, a key groove is arranged on the inner wall of the magnetic steel support, and a connecting key matched with the key groove is arranged on the outer wall of one of the limiting arc-shaped columns.
2. A low speed brushless washing machine motor as claimed in claim 1, characterized in that: A connecting hole is arranged in the fixing ear, and the electric control board is connected with the connecting hole through the connecting groove by rivets or screws.
3. A low speed brushless washing machine motor as claimed in claim 1, characterized in that: The limiting arc-shaped column comprises an arc-shaped sleeve body, and a supporting plate is arranged in the arc-shaped sleeve body.
4. A low speed brushless washing machine motor as claimed in claim 1, characterized in that: Three fixing ears are uniformly arranged on the outer edge of the upper end of the support cylinder, and three limiting arc-shaped columns are uniformly arranged on the outer edge of the lower end of the support cylinder, and the three limiting arc-shaped columns are arranged staggered with the three fixing ears.
5. A low speed brushless washing machine motor as claimed in claim 1, characterized in that: The motor shaft is provided with a limiting snap ring corresponding to the upper end of the first bearing, and the two ends of the limiting snap ring are connected with the middle of the first bearing.