Motor and electronic device

Abstract

The application discloses a motor and electronic equipment, the motor comprises: a shell, a containing cavity is formed in the shell, and an air inlet and an air outlet are communicated with the containing cavity, the air inlet, the containing cavity and the air outlet form a heat dissipation channel; a rotor is rotatably arranged in the containing cavity, the rotor has a first region and a second region which are spaced apart; a first heat dissipation member is arranged on the first region of the rotor; a second heat dissipation member is arranged on the second region of the rotor, and the first heat dissipation member and the second heat dissipation member are located in the heat dissipation channel; in the case that the rotor rotates, the centers of gravity of the first heat dissipation member and the second heat dissipation member are different, so that the center of gravity of the rotor mass deviates. The first heat dissipation member and the second heat dissipation member are integrated on the rotor to replace the vibration sub on the rotor, so that the vibration function and the heat dissipation function of the motor can be realized, the motor does not need to be additionally installed, the internal occupied space of the electronic equipment is saved, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic product manufacturing, and particularly relates to a motor and an electronic device. BACKGROUND

[0002] At present, intelligent terminal devices such as mobile phones generally adopt the air cooling heat dissipation mode for heat dissipation. Taking a mobile phone as an example, a micro centrifugal fan is installed in the mobile phone, and the fan is driven to rotate by a motor to perform air cooling heat dissipation.

[0003] However, the heat dissipation mode in the prior art needs to additionally install a fan and a motor in the mobile phone, which greatly occupies the internal space of the mobile phone and is not conducive to miniaturization design. Moreover, in the case of limited space in the mobile phone, the structure stacking in the mobile phone will cause large wind resistance of the fan, thereby reducing the heat dissipation efficiency of the fan. SUMMARY

[0004] The application aims to provide a motor and an electronic device, which can at least solve the problems of the heat dissipation mode in the prior art, occupying the internal space of the mobile phone, being not conducive to miniaturization design, and low heat dissipation efficiency.

[0005] In order to solve the above technical problems, the application is implemented as follows:

[0006] In a first aspect, the application provides a motor, comprising: a shell, a containing cavity, an air inlet and an air outlet being communicated with the containing cavity are arranged in the shell, and the air inlet, the containing cavity and the air outlet form a heat dissipation channel; a rotor, the rotor is rotatably arranged in the containing cavity, and the rotor has a first region and a second region which are spaced apart; a first heat dissipation member, the first heat dissipation member is arranged at the first region of the rotor; a second heat dissipation member, the second heat dissipation member is arranged at the second region of the rotor, and the first heat dissipation member and the second heat dissipation member are both located in the heat dissipation channel, the first heat dissipation member and the second heat dissipation member form a vibration sub of the rotor, and the centers of gravity of the first heat dissipation member and the second heat dissipation member are different in the case of rotation of the rotor, so that the center of gravity of the rotor mass is deviated.

[0007] In a second aspect, the application provides an electronic device comprising the motor in the above embodiment.

[0008] In the embodiment of the present application, the first heat dissipation member and the second heat dissipation member are arranged in the first region and the second region of the rotor respectively. In the process of rotation of the rotor, the first heat dissipation member and the second heat dissipation member rotate with the rotation of the rotor, the gravity centers of the first heat dissipation member and the second heat dissipation member are different, so that the gravity center of the rotor deviates from the axis center, and then the gravity center of the rotor changes constantly in the process of rotation, and vibration is generated. The first heat dissipation member and the second heat dissipation member replace the vibration sub on the rotor, and realize the vibration function. At the same time, the first heat dissipation member and the second heat dissipation member generate air flow with the constant rotation of the rotor, and realize the heat dissipation function. The motor of the present application integrates the first heat dissipation member and the second heat dissipation member on the rotor, replaces the vibration sub on the rotor, can realize the vibration function of the motor, and can realize the heat dissipation function. Moreover, the first heat dissipation member and the second heat dissipation member are part of the structure of the motor, driven by the rotor, do not need to be additionally installed with a motor, effectively save the internal occupied space of the electronic equipment, are beneficial to the miniaturization design, and improve the user experience.

[0009] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0010] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0011] Figure 1 is a structure schematic diagram of a motor according to an embodiment of the present application;

[0012] Figure 2 is a sectional view of a motor according to the first embodiment of the present application in a static state;

[0013] Figure 3 is another sectional view of a motor according to the first embodiment of the present application in a static state;

[0014] Figure 4 is a sectional view of a motor according to the first embodiment of the present application in a working state;

[0015] Figure 5 is a heat dissipation schematic diagram of a motor according to the first embodiment of the present application in a static state and a heating device at an air outlet;

[0016] Figure 6 is a heat dissipation schematic diagram of a motor according to the first embodiment of the present application in a working state and a heating device at an air outlet;

[0017] Figure 7 is a heat dissipation schematic diagram of a motor according to the first embodiment of the present application in a static state and a heating device at an air inlet;

[0018] Figure 8 is a schematic view of heat dissipation of a motor in a working state and a heat generating device at an air inlet according to an embodiment of the present application;

[0019] Figure 9 is a sectional view of a motor in a static state according to an embodiment of the present application;

[0020] Figure 10 is another sectional view of a motor in a static state according to an embodiment of the present application;

[0021] Figure 11 is a sectional view of a motor in a working state according to an embodiment of the present application;

[0022] Figure 12 is a sectional view of a motor in a static state according to an embodiment of the present application;

[0023] Figure 13 is another sectional view of a motor in a static state according to an embodiment of the present application;

[0024] Figure 14 is a sectional view of a motor in a working state according to an embodiment of the present application.

[0025] Reference signs:

[0026] Motor 100;

[0027] Casing 10; upper casing 11; lower casing 12; accommodating cavity 13; air inlet 14; air outlet 15;

[0028] Rotor 20; first area 21; second area 22; hard plate 23; coil 24; bearing 25; rotating shaft 26; commutator 27;

[0029] First heat dissipation device 31; second heat dissipation device 32; air hole 33;

[0030] First fluid 41; second fluid 42; third fluid 43;

[0031] Flexible circuit board 51; electric brush 52; gasket 53; magnetic steel 54; foam 55;

[0032] Heat generating device 60. DETAILED DESCRIPTION

[0033] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0034] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The motor 100 provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0038] like Figures 1 to 14 As shown, the motor 100 according to an embodiment of the present invention includes a housing 10, a rotor 20, a first heat sink 31, and a second heat sink 32.

[0039] Specifically, the housing 10 is provided with a receiving cavity 13, and the housing 10 is provided with an air inlet 14 and an air outlet 15 which are in communication with the receiving cavity 13, and the air inlet 14, the receiving cavity 13 and the air outlet 15 form a heat dissipation channel. The rotor 20 is rotatably arranged in the receiving cavity 13, and the rotor 20 has a first region 21 and a second region 22 which are spaced apart. The first heat dissipation member 31 is arranged at the first region 21 of the rotor 20. The second heat dissipation member 32 is arranged at the second region 22 of the rotor 20, and the first heat dissipation member 31 and the second heat dissipation member 32 are both located in the heat dissipation channel, and the first heat dissipation member 31 and the second heat dissipation member 32 form a vibration subunit of the rotor 20. In the case that the rotor 20 rotates, the centers of gravity of the first heat dissipation member 31 and the second heat dissipation member 32 are different, so that the center of gravity of the rotor 20 is deviated.

[0040] In other words, referring to Figure 1 and Figure 2 , the motor 100 according to the embodiment of the present application mainly comprises a housing 10, a rotor 20, a first heat dissipation member 31 and a second heat dissipation member 32. The housing 10 is provided with a receiving cavity 13, and the housing 10 is provided with an air inlet 14 and an air outlet 15 which are in communication with the receiving cavity 13. The air inlet 14, the receiving cavity 13 and the air outlet 15 form a heat dissipation channel, and heat can be introduced into the heat dissipation channel through the air inlet 14 and then discharged through the air outlet 15, so as to achieve heat dissipation. The rotor 20 is rotatably arranged in the receiving cavity 13, and the rotor 20 has a first region 21 and a second region 22 which are spaced apart. The first region 21 and the second region 22 are adjacent, and the areas and shapes of the first region 21 and the second region 22 can be the same.

[0041] As shown in Figure 3 and Figure 4 , the first heat dissipation member 31 is arranged at the first region 21 of the rotor 20. The second heat dissipation member 32 is arranged at the second region 22 of the rotor 20. And the first heat dissipation member 31 and the second heat dissipation member 32 are both located in the heat dissipation channel, and as shown in Figures 5 to 8 , when the first heat dissipation member 31 and the second heat dissipation member 32 rotate (the rotation directions of the first heat dissipation member 31 and the second heat dissipation member 32 are shown by the arrow directions at the positions of the first heat dissipation member 31 and the second heat dissipation member 32 in Figure 6 and Figure 8 ), a forced air flow can be formed, the forced air flow is discharged through the heat dissipation channel, and heat dissipation of the heating device 60 in the electronic device is achieved (the conduction direction of the air flow is shown by the arrow direction in Figure 6 and Figure 8 ).

[0042] In the present application, the first heat dissipation member 31 and the second heat dissipation member 32 constitute the vibration sub on the rotor 20, and realize the function of the vibration sub. By replacing the vibration sub on the rotor 20 with the first heat dissipation member 31 and the second heat dissipation member 32, no other additional structures are introduced. In the case of rotation of the rotor 20, the first heat dissipation member 31 and the second heat dissipation member 32 rotate with the rotation of the rotor 20, the center of gravity of the first heat dissipation member 31 and the second heat dissipation member 32 is different, so that the center of gravity of the rotor 20 mass deviates from its axis, and then the center of gravity of the rotor 20 changes constantly during the rotation of the rotor 20, and vibration is generated. At the same time, the first heat dissipation member 31 and the second heat dissipation member 32 rotate with the rotor 20 constantly, and forced air flow is generated, realizing the heat dissipation function. The motor 100 of the present application integrates the first heat dissipation member 31 and the second heat dissipation member 32 on the rotor 20, replaces the vibration sub on the rotor 20, can realize the vibration function of the motor 100, and can realize the heat dissipation function. And the first heat dissipation member 31 and the second heat dissipation member 32 are part of the structure of the motor 100, driven by the rotor 20, without the need for additional installation of a motor, avoiding the problem that the motor driving fan rotation in the prior art is easy to produce noise, effectively saving the internal space of the electronic equipment, being conducive to miniaturization design, and improving the user experience.

[0043] The principle of vibration generation is that a mass eccentric vibration sub (the first heat dissipation member 31 and the second heat dissipation member 32 of the present application are equivalent to the vibration sub) is installed on the rotor 20, and the center of gravity of the rotor 20 mass deviates from the center of the shaft. Due to the imbalance of the object, the center of gravity of the rotor 20 changes constantly during the rotation, so vibration is generated. The centrifugal force formula is as follows:

[0044] F=m*ω 2 *r

[0045] Wherein, F represents the centrifugal force, m represents the mass of the object, ω represents the angular velocity of the circular motion of the object, and r represents the radius of the circular motion of the object.

[0046] Of course, for those skilled in the art, the principle of vibration generation of the motor 100 is understandable, and will not be described in detail in the present application.

[0047] Thus, according to the motor 100 of the embodiment of the present application, the first heat dissipation member 31 and the second heat dissipation member 32 are respectively arranged in the first region 21 and the second region 22 of the rotor 20. During rotation of the rotor 20, the first heat dissipation member 31 and the second heat dissipation member 32 rotate with the rotor 20, the centers of gravity of the first heat dissipation member 31 and the second heat dissipation member 32 are different, the center of gravity of the rotor 20 deviates from the axis of the rotor 20, and the center of gravity of the rotor 20 changes constantly during rotation of the rotor 20, thereby generating vibration. The first heat dissipation member 31 and the second heat dissipation member 32 replace the vibration sub of the rotor 20, and realize the vibration function. Meanwhile, the first heat dissipation member 31 and the second heat dissipation member 32 generate air flow during constant rotation of the rotor 20, and realize the heat dissipation function. The motor 100 of the present application integrates the first heat dissipation member 31 and the second heat dissipation member 32 on the rotor 20, replaces the vibration sub of the rotor 20, realizes the vibration function of the motor 100, and realizes the heat dissipation function. Moreover, the first heat dissipation member 31 and the second heat dissipation member 32 are part of the structure of the motor 100, and are driven by the rotor 20, without the need for additional installation of a motor, thereby effectively saving the internal space of the electronic device, facilitating miniaturization design, and improving user experience.

[0048] According to one embodiment of the present application, as shown in Figure 3 and Figure 4 , the rotor 20 can be divided into the first region 21 and the second region 22 along the radial direction of the rotor 20, the first heat dissipation member 31 is arranged in the first region 21, and the second heat dissipation member 32 is arranged in the second region 22. Moreover, the first heat dissipation member 31 and the second heat dissipation member 32 can be arranged symmetrically on the rotor 20. In the present application, as long as the centers of gravity of the first heat dissipation member 31 and the second heat dissipation member 32 are different during rotation of the rotor 20, the first heat dissipation member 31 and the second heat dissipation member 32 can be arranged in any way.

[0049] In some specific embodiments of the present application, the first heat dissipation member 31 includes a plurality of first blades, the plurality of first blades are arranged at intervals along the circumferential direction of the rotor 20; the second heat dissipation member 32 includes a plurality of second blades, the plurality of second blades are arranged at intervals along the axial direction of the rotor 20, and the center of gravity of the plurality of first blades is different from the center of gravity of the plurality of second blades in the case of rotation of the rotor 20.

[0050] That is, referring to Figure 3 and Figure 4 , the first heat dissipation member 31 can be designed as a plurality of first blades, the plurality of first blades are arranged at intervals along the circumferential direction of the rotor 20. The second heat dissipation member 32 can be designed as a plurality of second blades, the plurality of second blades are arranged at intervals along the circumferential direction of the rotor 20. The shape of each first blade and each second blade can be the same or different.

[0051] As shown in FIG. 1, when the rotor 20 rotates, the plurality of first vanes and the plurality of second vanes rotate with the rotation of the rotor 20, the center of gravity of the first vanes is different from the center of gravity of the second vanes, so that the center of gravity of the rotor 20 deviates from the axis thereof, and further provides a continuous vibration to the electronic device, so as to meet the vibration demand of the user. Figure 4 Figure 6 Figure 8 As shown in FIG. 1, when the rotor 20 rotates, the plurality of first vanes and the plurality of second vanes rotate with the rotation of the rotor 20, the center of gravity of the first vanes is different from the center of gravity of the second vanes, so that the center of gravity of the rotor 20 deviates from the axis thereof, and further provides a continuous vibration to the electronic device, so as to meet the vibration demand of the user.

[0052] According to an embodiment of the present application, the first vane comprises a first chamber, the second vane comprises a second chamber, the first vane is provided with a first fluid 41, the second vane is provided with a second fluid 42, and the viscosity of the first fluid 41 is different from the viscosity of the second fluid 42. The volume of the first fluid 41 in the first chamber is half of the volume of the first chamber, and the volume of the second fluid 42 in the second chamber is half of the volume of the second chamber.

[0053] In other words, as shown in FIG. 1, the first vane is formed with a first chamber, and the second vane is formed with a second chamber. The first vane is filled with a first fluid 41, and the second vane is filled with a second fluid 42. The viscosity of the first fluid 41 is different from the viscosity of the second fluid 42. Due to the different viscosity of the first fluid 41 in the first vane and the second fluid 42 in the second vane, when the rotor 20 rotates, the center of the first vane and the second vane is different, so that the rotor 20 generates eccentricity during rotation, replaces the vibration sub of the rotor 20, and realizes the vibration function of the motor 100. Figures 2 to 4 Optionally, as shown in FIG. 1, the volume of the first fluid 41 filled in the first chamber can be half of the volume of the first chamber, and the volume of the second fluid 42 filled in the second chamber can be half of the volume of the second chamber. Of course, the filling amount of the first fluid 41 in the first vane and the filling amount of the second fluid 42 in the second vane can be set according to actual needs, as long as the center of gravity of the first vane and the second vane during rotation is different.

[0054] Figure 2

[0055] ​​​​In this application, the viscosity of the first fluid 41 can differ from the viscosity of the second fluid 42 by more than 500 times. Optionally, the first fluid 41 can be a low-viscosity fluid, such as water, alcohol, kerosene, etc. The second fluid 42 can be a high-viscosity fluid, such as syrup, cream, glycerin, etc. Of course, the specific selection of the first fluid 41 and the second fluid 42 can be made according to actual needs. This application does not limit the specific types of the first fluid 41 and the second fluid 42; as long as it is possible, fluids with different centers of gravity during the rotation of the first and second blades should fall within the protection scope of this application.

[0056] In some specific embodiments of the present invention, a first chamber is defined within a first fan blade, a second chamber is defined within a second fan blade, and a third fluid 43 is provided in one of the first or second fan blades.

[0057] In other words, such as Figures 9 to 11 As shown, a first chamber is formed within the first fan blade, and a second chamber is formed within the second fan blade. One of the first or second fan blades is filled with a third fluid 43. Taking the example that each first fan blade in the first region 21 is filled with the third fluid 43, while each second fan blade in the second region 22 is not filled with the third fluid 43, during fan blade rotation, the third fluid 43 in the first fan blade flows within the first chamber, while the second chamber of the second fan blade is empty. Therefore, the center of gravity of the first and second fan blades changes, causing the rotor 20 to become eccentric, thus achieving vibration of the motor 100. Simultaneously, the rotation of the first and second fan blades achieves heat dissipation. The third fluid 43 can be a low-viscosity fluid, such as water, alcohol, or kerosene. Alternatively, the third fluid 43 can be a high-viscosity fluid, such as syrup, cream, or glycerin.

[0058] According to one embodiment of the present invention, one of the first or second fan blades is provided with a vent 33, which faces the air outlet 15. When the rotor 20 rotates, the first heat sink 31 and the second heat sink 32 have different air resistances, so that the centers of gravity of the first heat sink 31 and the second heat sink 32 are different.

[0059] In other words, such as Figures 12 to 14 As shown, one of the first or second fan blades may be provided with air vents 33. For example, air vents 33 may be provided on the first fan blade, while the second fan blade may not have air vents 33. Therefore, when the rotor 20 rotates, the air resistance of the first heat sink 31 and the second heat sink 32 is different. The fan blades subjected to different resistances will cause the centers of gravity of the first and second fan blades to be different, causing the rotor 20 to become eccentric, thus achieving the vibration of the motor 100. Simultaneously, the rotation of the first and second fan blades achieves the heat dissipation function. Of course, the shape, size, and number of air vents 33 can be specifically set according to actual needs, and will not be described in detail in this application.

[0060] According to one embodiment of the present application, the casing 10 is a square casing, the air inlets 14 are arranged on opposite sides of the casing 10 in the radial direction of the rotor 20, and the air outlet 15 is arranged on the top of the casing 10.

[0061] That is, as shown in Figure 2 , the casing 10 can adopt a square casing, and the casing 10 can be composed of an upper casing 11 and a lower casing 12, wherein the upper casing 11 can serve as an upper cover of the motor 100, and the lower casing 12 can serve as a mounting bracket of the stator assembly. The air inlets 14 are arranged on opposite sides of the upper casing 11, and the air outlet 15 is arranged on the top of the upper casing 11. The heat generating device 60 in the electronic device can be arranged at the position of each air inlet 14, as shown in Figure 7 and Figure 8 , by arranging the heat generating device 60 at the position of each air inlet 14, when the motor 100 is working, the first heat dissipation member 31 and the second heat dissipation member 32 rotate rapidly with the rotor 20, generating a rapid forced air flow at the air inlet 14, which carries away the heat emitted by the heat generating device 60 and is discharged through the air outlet 15, thereby achieving heat dissipation of the heat generating device 60.

[0062] The heat generating device 60 can also be arranged at the position of the air outlet 15, as shown in Figure 5 and Figure 6 , by arranging the heat generating device 60 at the position of the air outlet 15, when the motor 100 is working, the first heat dissipation member 31 and the second heat dissipation member 32 rotate rapidly with the rotor 20, generating a forced air flow which is discharged from the air outlet 15, thereby directly carrying away the heat generated by the heat generating device 60 at the air outlet 15, achieving heat dissipation.

[0063] In some specific embodiments of the present application, the motor 100 further comprises a flexible circuit board 51 and a brush 52.

[0064] Specifically, the flexible circuit board 51 is arranged in the accommodating cavity 13, and a part of the flexible circuit board 51 extends out of the casing 10. The brush 52 is arranged in the accommodating cavity 13, and one end of the brush 52 is connected with the flexible circuit board 51, and the other end of the brush 52 is slidably connected with the rotor 20.

[0065] In other words, as shown in Figure 2 , the motor 100 further comprises a flexible circuit board 51 and a brush 52. The flexible circuit board 51 is arranged in the accommodating cavity 13, and a part of the flexible circuit board 51 extends out of the casing 10. The brush 52 is arranged in the accommodating cavity 13, and one end of the brush 52 is connected with the flexible circuit board 51, and the flexible circuit board 51 and the brush 52 can be welded together, so that the flexible circuit board 51 can support the brush 52 and conduct current. The other end of the brush 52 is slidably connected with the rotor 20. The brush 52 can supply current to the rotor 20 and support the rotor 20.

[0066] In the present application, as shown in Figure 2 The rotor 20 is mainly composed of a hard plate 23, a coil 24, a commutator 27, a bearing 25, a rotating shaft 26, and an injection molding, wherein the hard plate 23 constitutes the circuit of the rotor 20, and the first and second heat dissipation members 31 and 32 are arranged along the axial direction of the injection molding. The coil 24 is arranged on the hard plate 23, and generates a magnetic field after being electrified. The bearing 25 can support the rotation of the rotor 20 and generate a vibration friction force. The rotating shaft 26 is arranged on the bearing 25, and the rotor 20 rotates around the rotating shaft 26. In order to reduce the friction between the bearing 25 and the upper shell 11 and to reduce the noise, the foam 55 is arranged between the bearing 25 and the upper shell 11. The commutator 27 is arranged on the hard plate 23, and can timely change the current direction in the coil 24 when the coil 24 rotates through the balance position, so as to change the force direction of the coil 24, thereby ensuring that the coil 24 can rotate in the same direction. The magnetic steel 54 can be arranged in the shell 10, and can generate a permanent magnetic field after being magnetized. In order to control the height of the rotor 20, the gasket 53 can be arranged between the brush 52 and the lower shell 12 to increase the support height of the brush 52.

[0067] In the present application, when the motor 100 is working, the FPC (flexible circuit board 51) connects the power supply to the brush 52 to supply power, and the current flows into the coil 24 through the sliding contact between the brush 52 and the commutator 27. The coils 24 of different windings cut the magnetic lines of force in the permanent magnetic field formed by the stator assembly to generate electromagnetic force, and the torque formed by the electromagnetic force makes the rotor 20 rotate. The current flowing through the brush 52 makes the process circulate through the action of the commutator 27, thereby realizing the continuous rotation of the rotor 20. The rotating fan blades (the first and second heat dissipation members 31 and 32) are filled with fluid or have wind holes 33, so that the fan blades rotate in the process, and due to the different viscosities of the fluid or the different resistances received, the centers of gravity of the first and second heat dissipation members 31 and 32 are different, the center of gravity of the mass of the rotor 20 deviates from the center of the rotating shaft 26, and then the whole machine provides continuous vibration, thereby meeting the needs of consumers. At the same time, the first and second heat dissipation members 31 and 32 on the rotor 20 rotate with the motor 100, thereby generating forced air flow, which can accelerate the flow of the hot air flow emitted by the heating device 60 (such as a CPU), so that the hot air flow on the surface of the device is transmitted to other places through the motor 100, and the heating device 60 (such as a CPU) can be quickly cooled, thereby improving the running performance of the mobile phone, reducing the heat of the mobile phone, and greatly improving the user experience.

[0068] Of course, other structures of the motor 100 and their working principles can be understood and realized by those skilled in the art, and will not be described in detail in the present application.

[0069] In summary, the motor 100 according to the embodiments of the present application, by using the unequal viscosity fluid or the different resistance structure fan blades (the first heat sink 31 and the second heat sink 32) in the first area 21 and the second area 22 on the rotor 20 to replace the vibration sub on the rotor 20 of the motor 100, the center of gravity of the rotor 20 mass deviates from the center of the rotating shaft 26, the center of gravity of the rotor 20 changes constantly during rotation, vibration is generated, and the vibration demand of the consumer is met. At the same time, the present application integrates the heat dissipation function on the motor 100, the fan blades (the first heat sink 31 and the second heat sink 32) on the rotor 20 rotate with the rotor 20, forced air flow is generated, which can be used for heat dissipation of high-frequency and high-power devices (such as CPU) in the mobile phone, reduces the heat of the mobile phone, improves the running performance of the mobile phone, and greatly improves the user experience. The fan blades on the rotor 20 of the present application rotate without using a motor to drive, which reduces the generation of noise, greatly saves the structure space and power consumption, is beneficial to the miniaturization design of electronic equipment, and improves the user experience.

[0070] According to a second aspect of the present application, an electronic device can be a mobile phone, a computer, or the like terminal product. The electronic device of the present application includes the motor 100 in the above-mentioned embodiments. Since the motor 100 according to the embodiments of the present application has the above-mentioned technical effects, the electronic device of the present application should also have corresponding technical effects, that is, the electronic device of the present application, by using the motor 100, integrates the first heat sink 31 and the second heat sink 32 on the rotor 20 to replace the vibration sub on the rotor 20, which can realize the vibration function of the motor 100 and the heat dissipation function. And the first heat sink 31 and the second heat sink 32 are part of the structure of the motor 100, driven by the rotor 20, without the need for additional installation of a motor, effectively saving the internal space of the electronic device, which is beneficial to the miniaturization design and improves the user experience.

[0071] Of course, other structures of the electronic device and its working principles can be understood and implemented by those skilled in the art, which will not be described in detail in the present application.

[0072] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A motor characterized by, The motor comprises: a casing, a receiving cavity, an air inlet and an air outlet being formed in the casing, the air inlet, the receiving cavity and the air outlet forming a heat dissipation channel; a rotor rotatably arranged in the receiving cavity, the rotor having a first region and a second region spaced apart; a first heat dissipation member arranged in the first region of the rotor; a second heat dissipation member arranged in the second region of the rotor, the first heat dissipation member and the second heat dissipation member being located in the heat dissipation channel, the first heat dissipation member and the second heat dissipation member forming a vibration unit on the rotor, the center of gravity of the first heat dissipation member and the second heat dissipation member being different when the rotor rotates, so that the center of gravity of the rotor mass is offset; the first heat dissipation member comprises a plurality of first vanes, each first vane comprising a first cavity; the second heat dissipation member comprises a plurality of second vanes, each second vane comprising a second cavity; a first fluid is arranged in each first vane, and a second fluid is arranged in each second vane, each first vane and each second vane have the same shape, the viscosity of the first fluid and the second fluid is different, the viscosity of the first fluid is 500 times or more different from the viscosity of the second fluid; the volume of the first fluid in the first cavity is half of the volume of the first cavity, and the volume of the second fluid in the second cavity is half of the volume of the second cavity.

2. The motor of claim 1, wherein The rotor is divided into the first region and the second region along the radial direction of the rotor, and the first heat dissipation member and the second heat dissipation member are symmetrically arranged on the rotor.

3. The motor of claim 1, wherein A plurality of the first vanes are arranged along the circumferential direction of the rotor and are spaced apart; a plurality of the second vanes are arranged along the circumferential direction of the rotor and are spaced apart, and the center of gravity of the plurality of the first vanes is different from the center of gravity of the plurality of the second vanes when the rotor rotates.

4. The motor of claim 3, wherein A first cavity is defined in each first vane, and a second cavity is defined in each second vane, one of the first vanes or the second vanes is provided with a third fluid.

5. The motor of claim 3, wherein A plurality of air holes are arranged on one of the first vanes or the second vanes, and the air holes are directed towards the air outlet.

6. The motor of claim 1, wherein The casing is a square casing, the air inlet is arranged on opposite sides of the casing in the radial direction of the rotor, and the air outlet is arranged on the top of the casing.

7. The motor of claim 1, wherein Further comprising: a flexible circuit board arranged in the receiving cavity, and a portion of the flexible circuit board extending out of the casing; a brush arranged in the receiving cavity, one end of the brush being connected to the flexible circuit board, and the other end of the brush being slidably connected to the rotor.

8. An electronic device, comprising: The motor comprises any one of claims 1-7.

Images