Outer rotor motor with waterproof function
By employing designs such as bearing waterproof covers, soft rubber waterproof covers, lead wire power-driven mechanisms, and grooved drainage holes in the external rotor motor, the problems of poor waterproof rating and short service life of the external rotor motor are solved, achieving higher speed stability and structural stability.
Patent Information
- Application Number
- CN202520141649.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing external rotor motors have short service life, high noise, unstable speed, low torque, large size, poor waterproof rating, and are easily damaged.
The design incorporates features such as a bearing waterproof cover, a soft rubber waterproof cover, a lead wire power drive, a magnet fixing bracket, and a grooved drainage hole to prevent water from entering the motor, ensuring normal motor rotation and drainage, thereby improving speed and service life.
It effectively prevents water from entering the motor, prevents corrosion, increases motor speed and service life, and enhances motor structural stability and waterproof performance.
Smart Images
Figure CN223816049U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor field especially is with waterproof function's outer rotor motor. BACKGROUND
[0002] The outer rotor motor is one kind of brushless motor, the outer rotor motor refers to its rotor is located in the outside of motor, and the stator is located in the inside, but the outer rotor motor in the prior art has short service life, loud noise, unstable speed, small moment, large volume, and poor waterproof grade, and is easy to damage, therefore, an outer rotor motor with waterproof function is provided. SUMMARY
[0003] The utility model discloses to overcome above-mentioned situation shortage, aims at providing a kind of technical scheme that can solve above-mentioned problem.
[0004] An outer rotor motor with waterproof function, comprising a steel shell, the top of the steel shell is covered with a stator fixing frame, and a stator core is provided between the stator fixing frame and the steel shell, and the stator core is vertically located inside the steel shell, a motor shaft is vertically provided inside the stator core, and the upper and lower ends of the motor shaft respectively penetrate the steel shell and the stator fixing frame, and the steel shell rotates around the motor shaft below the stator fixing frame, a bearing waterproof cover is provided between the stator fixing frame and the motor shaft, and the bearing waterproof cover seals and covers the top of the stator fixing frame, a lead is provided between the stator fixing frame and the steel shell, and the lead is located at one side outside the stator fixing frame, and the lead is electrically connected between the lead and the stator core, a soft rubber waterproof cover is provided between the lead and the stator fixing frame, and the soft rubber waterproof cover seals and covers the side of the stator fixing frame, and the lead penetrates the soft rubber waterproof cover and the soft rubber waterproof cover wraps the lead.
[0005] Preferably, a magnet fixing frame is provided between the steel shell and the stator core, and the magnet fixing frame is vertically inserted into the steel shell, and the stator core is vertically located at the middle position of the magnet fixing frame and the same rotation direction is formed between the magnet fixing frame and the steel shell.
[0006] Preferably, a plurality of magnets are provided between the magnet fixing frame and the steel shell, and the plurality of magnets are vertically distributed around the inside of the magnet fixing frame, and the plurality of magnets are parallel to each other on the outside of the stator core.
[0007] Preferably, a plurality of fixing grooves are provided between the plurality of magnets and the magnet fixing frame, and the plurality of fixing grooves are vertically and circumferentially formed and distributed on the inside of the magnet fixing frame, and the plurality of magnets are vertically clamped in the plurality of fixing grooves.
[0008] Preferably, the stator core is provided with enameled wire, and the enameled wire is uniformly wound and fixed at the side of the stator core, and the lead wire is electrically connected with the enameled wire.
[0009] Preferably, a rotation-stopping pin is arranged between the stator core and the motor shaft, and the rotation-stopping pin is vertically inserted into the connection between the stator core and the motor shaft.
[0010] Preferably, a groove is formed at the inner bottom end of the steel shell, the groove is recessed downward, and the groove and the side bottom end of the inner part of the steel shell form a height difference, a plurality of water leakage holes are formed at the bottom end of the groove and penetrate the steel shell, thereby discharging the water collected in the groove through the plurality of water leakage holes, and a plurality of threaded holes are formed at the four corners of the outer bottom end of the steel shell.
[0011] Preferably, a first ball bearing is arranged between the stator fixing frame and the motor shaft, and the first ball bearing is horizontally located at the inner bottom end of the stator fixing frame, the bottom end of the motor shaft penetrates the first ball bearing, and the first ball bearing is at least two, a second ball bearing is arranged between the stator fixing frame and the motor shaft, and the second ball bearing is horizontally located at the inner top end of the stator fixing frame, the top end of the motor shaft penetrates the second ball bearing, and the second ball bearing is at least two.
[0012] Compared with the prior art, the utility model has the beneficial effects that: the bearing waterproof cover prevents the external water source from entering the stator fixing frame through the connection between the motor shaft and the stator fixing frame, prevents water accumulation in the stator fixing frame, affects the normal rotation of the steel shell, and corrodes the motor shaft, the lead wire is used to electrify the stator core and change the magnetic field between the stator core and the steel shell, thereby driving the steel shell to rotate, and the soft rubber waterproof cover prevents the external water source from entering the steel shell when the lead wire electrifies the stator core and drives the steel shell to rotate, thereby affecting the rotation speed of the steel shell, and the groove is used to collect the water entering the steel shell and discharge the water collected in the groove through the plurality of water leakage holes.
[0013] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0015] Figure 1 It is a structural diagram of an outer rotor motor with waterproof function.
[0016] Figure 2 It is another structural diagram of an outer rotor motor with waterproof function.
[0017] Figure 3 It is still another structural diagram of an outer rotor motor with waterproof function.
[0018] Figure 4 It is a structural diagram of a stator core.
[0019] Figure 5 It is a structural diagram of a casing.
[0020] Figure 6 It is another structural diagram of a stator core.
[0021] As shown in the figure: 1, steel shell, 2, stator fixing frame, 3, bearing waterproof cover, 4, soft waterproof sleeve, 5, motor shaft, 6, lead, 7, threaded hole, 8, first ball bearing, 9, second ball bearing, 10, stator core, 11, enameled wire, 12, magnet fixing frame, 13, fixing groove, 14, magnet, 15, water leakage hole, 16, groove, 17, rotation stop pin. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0023] Please refer to Figures 1-6The utility model discloses an outer rotor motor with waterproof function, including steel shell 1, steel shell 1 top covers and is provided with stator fixed frame 2, and stator fixed frame 2 with steel shell 2 between be provided with stator core 10, and stator core 10 vertical inside steel shell 1, stator core 10 inside vertical and be provided with motor shaft 5, and the upper and lower ends of motor shaft 5 respectively penetrate steel shell 1 and stator fixed frame 2, and steel shell 1 with motor shaft 5 as the center rotates below stator fixed frame 2, stator fixed frame 2 with motor shaft 5 between be provided with bearing waterproof cover 3, and bearing waterproof cover 3 sealed cover stator fixed frame 2's top place, and then through bearing waterproof cover 3 makes the water source of outside not easily from the junction between motor shaft 5 and stator fixed frame 2 into stator fixed frame 2 inside, prevent stator fixed frame 2 inside waterlogging, influence steel shell normal rotation and because corrosion motor shaft 5, stator fixed frame 2 with steel shell 1 between be provided with lead 6, and lead 6 is located stator fixed frame 2 outside one side place, and lead 6 with stator core 10 between carries out electric connection, lead 6 with stator fixed frame 2 between be provided with soft glue waterproof cover 4, and soft glue waterproof cover 4 sealed cover stator fixed frame 2's side place, and lead 6 penetrates soft glue waterproof cover 4 and soft glue waterproof cover 4 is wrapped to lead 6, to stator core 10 is electrified and changes the magnetic field between stator core 6 and steel shell 1 through lead 6, to drive steel shell 1 rotates and through soft glue waterproof cover 4 makes lead 6 to stator core 10 is electrified and drives steel shell 1 to rotate when the water source of outside not easily carries out steel shell 1 inside, and then influence the rotating speed of steel shell 1.
[0024] Magnet fixing frame 12 is vertically inserted into the inside of steel shell 1, and stator core 10 is vertically located at the middle position of magnet fixing frame 12 and between magnet fixing frame 12 and steel shell 1 in the same rotation direction.
[0025] A plurality of magnets 14 are arranged on the inner side of magnet fixing frame 12, and the plurality of magnets 14 are parallel to the outer side of stator core 10, so that the stator core 10 is electrified through the lead 6 and the magnetic field between the plurality of magnets 14 and the stator core 10 is changed, thereby driving the steel shell 1, the magnet fixing frame 12 and the plurality of magnets 14 to rotate and move on the side of the stator core 10.
[0026] A plurality of fixing grooves 13 are arranged between the plurality of magnets 14 and the magnet fixing frame 12, and the plurality of fixing grooves 13 are vertically and circumferentially formed on the inner side of the magnet fixing frame 12, and the plurality of magnets 14 are vertically clamped in the plurality of fixing grooves 13, so as to prevent the plurality of magnets 14 from shifting, tilting and falling off when fixed on the magnet fixing frame 12.
[0027] The stator core 10 is provided with an enameled wire 11, and the enameled wire 11 is uniformly wound and fixed at the side of the stator core 10, and the lead wire 6 is electrically connected with the enameled wire 11, and then the enameled wire 11 is energized through the lead wire 6, so as to change the magnetic field between the plurality of magnets 14 and the stator core 10.
[0028] The stator core 10 and the motor shaft 5 are provided with a rotation-stopping pin 17, and the rotation-stopping pin 17 is vertically inserted into the connection between the stator core 10 and the motor shaft 5, so as to prevent the motor shaft 5 from being displaced, skewed and falling off in the stator core 10 through the rotation-stopping pin 17.
[0029] The steel shell 1 is internally formed with a groove 16 at the bottom end, and the groove 16 is concave downward, and the groove 16 and the side bottom end inside the steel shell 1 form a height difference, so that the water source entering the inside of the steel shell 1 is collected through the groove 16, and the groove 16 is formed with a plurality of water leakage holes 15 at the bottom end, and the plurality of water leakage holes 15 penetrate the steel shell 1, so that the water source collected in the groove 16 is discharged from the inside of the steel shell 1 through the plurality of water leakage holes 15, and the steel shell 1 is also provided with a plurality of threaded holes 7, and the plurality of threaded holes 7 are formed and distributed at the four corners of the bottom end outside the steel shell 1, so that the structure and the steel shell 1 can be connected through the plurality of threaded holes 7.
[0030] The stator fixing frame 2 and the motor shaft 5 are provided with a first ball bearing 8, and the first ball bearing 8 is horizontally located at the bottom end inside the stator fixing frame 2, and the bottom end of the motor shaft 5 penetrates the first ball bearing 8, and the first ball bearing 8 is at least two, and the stator fixing frame 2 and the motor shaft 5 are also provided with a second ball bearing 9, and the second ball bearing 9 is horizontally located at the top end inside the stator fixing frame 2, and the top end of the motor shaft 5 penetrates the second ball bearing 9, and the second ball bearing 9 is at least two, so that the motor shaft 5 is vertically suspended and supported in the stator fixing frame 2 through the first ball bearing 8 and the second ball bearing 9, so as to increase the stability of the motor shaft 5, and then increase the service life of the motor shaft 5.
[0031] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.
Claims
1. An outer rotor motor having a waterproof function, comprising a steel shell, characterized in that, The top end of the steel shell is covered with a stator fixing frame, a stator core is arranged between the stator fixing frame and the steel shell, and the stator core is vertically located inside the steel shell, a motor shaft is vertically arranged inside the stator core, the upper and lower ends of the motor shaft respectively penetrate the steel shell and the stator fixing frame, the steel shell rotates around the motor shaft below the stator fixing frame, a bearing waterproof cover is arranged between the stator fixing frame and the motor shaft, and the bearing waterproof cover is sealed and covers the top end of the stator fixing frame, a lead wire is arranged between the stator fixing frame and the steel shell, the lead wire is located at one side outside the stator fixing frame, and the lead wire is electrically connected with the stator core, a soft rubber waterproof cover is arranged between the lead wire and the stator fixing frame, the soft rubber waterproof cover is sealed and covers the side surface of the stator fixing frame, and the lead wire penetrates the soft rubber waterproof cover and the soft rubber waterproof cover wraps the lead wire.
2. The water-proof outer rotor motor according to claim 1, wherein The stator core is vertically inserted into the steel shell, and the stator core is vertically located at the middle position of the magnet fixing frame and the same rotation direction between the magnet fixing frame and the steel shell.
3. The water-proof outer rotor motor according to claim 2, wherein A plurality of magnets are arranged between the magnet fixing frame and the steel shell, and the plurality of magnets are vertically and circumferentially distributed on the inner side of the magnet fixing frame, and the plurality of magnets are parallel to the outer side of the stator core.
4. The water-proof outer rotor motor according to claim 3, wherein A plurality of fixing grooves are arranged between the plurality of magnets and the magnet fixing frame, and the plurality of fixing grooves are vertically and circumferentially formed and distributed on the inner side of the magnet fixing frame, and the plurality of magnets are vertically clamped in the plurality of fixing grooves.
5. The water-proof outer rotor motor according to claim 1, wherein The stator core is provided with an enameled wire, and the enameled wire is wound and fixed on the side of the stator core, and the lead wire is electrically connected with the enameled wire.
6. The water-proof outer rotor motor according to claim 1, wherein A rotation stop pin is arranged between the stator core and the motor shaft, and the rotation stop pin is vertically inserted into the connection between the stator core and the motor shaft.
7. The water-resistant outer rotor motor according to claim 1, wherein A groove is formed at the bottom end of the steel shell, the groove is recessed downward, and the groove and the side bottom end of the steel shell form a height difference, a plurality of water leakage holes are formed at the bottom end of the groove, and the plurality of water leakage holes penetrate the steel shell, so that the water collected in the groove is discharged from the steel shell, and a plurality of threaded holes are formed on the bottom end of the steel shell.
8. The water-proof outer rotor motor according to claim 1, wherein A first ball bearing is arranged between the stator fixing frame and the motor shaft, and the first ball bearing is horizontally located at the bottom end of the stator fixing frame, the bottom end of the motor shaft penetrates the first ball bearing, and the first ball bearing is at least two, a second ball bearing is arranged between the stator fixing frame and the motor shaft, and the second ball bearing is horizontally located at the top end of the stator fixing frame, the top end of the motor shaft penetrates the second ball bearing, and the second ball bearing is at least two.