Motor and ceiling fan device

Abstract

The utility model relates to the technical field of motors, and discloses a motor and a ceiling fan device, the motor comprises a housing assembly, the housing assembly comprises an end cover and a main housing, the main housing is an aluminum alloy structural member and / or a magnesium alloy member, the main housing comprises an end plate and a coaming surrounding the end plate, and the inner wall of the coaming is provided with a mounting groove; the mandrel is assembled and connected with the bearing chamber through a bearing assembly; the driving unit comprises a rotor assembly, a stator assembly and a magnetic conducting part, the magnetic conducting part is arranged in the mounting groove, the magnetic conducting part can provide a magnetic conducting channel needed by a magnetic field, magnetic leakage is avoided, the main shell can be a lighter structural part, the load of an internal supporting part is reduced, and the efficiency of the motor is improved; one side of the core shaft is assembled and connected with the bearing chamber through the bearing assembly, the arrangement mode of the single-side bearing not only simplifies the structure of the end cover, but also reduces the use number of the bearings while meeting the rotation and connection requirements of the core shaft, and the motor has fewer overall components, is convenient to disassemble and assemble, and can effectively reduce the burden of an operator when the motor is assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor and a ceiling fan device. Background Art

[0002] A low-speed direct-drive motor is a type of electric motor designed to directly drive a load without using a gearbox or a speed reducer. With the progress of technology, this type of motor has been applied in more and more fields. With the continuous development of low-speed direct-drive motors, users' requirements for various motor performances are also constantly increasing.

[0003] Since the structure of existing low-speed direct-drive motors is usually relatively complex, it is easy to generate heat and is relatively heavy, which increases the difficulty and cost of enterprise manufacturing, on-site installation, and the uncertainty factors of motor operation. In order to simplify its structure, reduce the weight and manufacturing cost of the motor, a single-bearing structure is usually used to replace the double-bearing structure. However, due to the relatively small number of supporting bearings, its stability and load capacity are greatly limited. Summary of the Utility Model

[0004] In view of this, the utility model provides a motor and a ceiling fan device to solve the problem of poor stability and load capacity caused by the complex structure of existing low-speed direct-drive motors.

[0005] In a first aspect, the utility model provides a motor, comprising: a housing assembly, including an end cover and a main housing, the main housing being an aluminum alloy structural member and / or a magnesium alloy member, the main housing including an end plate and a surrounding plate surrounding the end plate, the end plate being provided with a bearing chamber, the end cover being assembled and connected to the side of the surrounding plate away from the end plate, the inner wall of the surrounding plate being provided with an installation groove, the end cover and the main housing enclosing to form an installation space; a core shaft, passing through the installation space through the bearing chamber, the core shaft being assembled and connected to the bearing chamber through a bearing assembly, the core shaft being rotatable relative to the housing assembly; a driving unit, including a rotor assembly, a stator assembly, and a magnetic conduction member, the stator assembly being assembled and connected to the outer peripheral surface of the core shaft in the installation space, the rotor assembly being assembled and connected to the inner wall of the surrounding plate, the magnetic conduction member being arranged in the installation groove, the rotor assembly being in contact with the surrounding plate through the magnetic conduction member, the driving unit being adapted to drive the core shaft and the housing assembly to rotate relative to each other.

[0006] Beneficial effects: Due to the presence of the magnetic conductive part, it can provide the magnetic conductive path required by the magnetic field and avoid magnetic leakage. Therefore, the main housing can be a more lightweight structural part, which can significantly reduce the weight of the main housing itself, and then reduce the load on the internal support components and improve the motor efficiency. In addition, the mandrel is only assembled and connected to the bearing chamber through the bearing assembly on one side. Since the working conditions of the motor are mostly in the low-speed state, this way of setting a single-sided bearing can simplify the structure of the end cover while meeting the rotation and connection requirements of the mandrel, and can also reduce the number of bearings used. The motor of this embodiment improves its own stability and reliability while simplifying the structure, and can also reduce the burden on the operator during motor assembly, effectively solving the problems of poor stability and load capacity caused by the complex structure of the existing low-speed direct drive motor.

[0007] In an alternative embodiment, the main housing is an integral structure.

[0008] Beneficial effects: This form of housing assembly not only has higher overall strength but also fewer components, which can effectively reduce the steps required during assembly and can reduce the assembly errors generated during the assembly of too many components.

[0009] In an alternative embodiment, the end plate is provided with a hollowed-out hole. The housing assembly further includes a baffle for covering the hollowed-out hole. The baffle matches the shape of the hollowed-out hole and is detachably connected to the end plate.

[0010] Beneficial effects: Through the cooperation of the hollowed-out hole and the baffle, the baffle is thinner and lighter in weight, further reducing the weight of the housing assembly while meeting the structural strength requirements of the main housing. In addition, when the motor needs to be repaired and maintained, the internal situation of the motor can be conveniently observed by removing the baffle without removing the end cover.

[0011] In an alternative embodiment, the hollowed-out hole includes a first hole section and a second hole section from top to bottom. The cross-sectional area of the first hole section is larger than that of the second hole section. The connection surface between the first hole section and the second hole section forms a stepped surface. The baffle is located in the first hole section and cooperates with the stepped surface.

[0012] Beneficial effects: This form of hollowed-out hole can prevent the baffle from protruding from the top surface of the end plate and avoid interference during the assembly of other components. In addition, the stepped surface can also quickly and conveniently position the baffle during the installation of the baffle, reducing the assembly difficulty.

[0013] In an alternative embodiment, the baffle is detachably connected to the end plate through a fastening component. The baffle is provided with a through hole for the fastening component to pass through, and the stepped surface is provided with a mating hole for cooperating with the fastening component. The mating hole is a blind hole.

[0014] Beneficial effects: When the fastening component is connected to this form of mating hole, it is safer and more reliable.

[0015] In an optional embodiment, there are multiple hollow holes, which are evenly spaced along the circumference of the bearing chamber.

[0016] Beneficial effect: This form of hollow hole arrangement can make the structural strength of the end plate more uniform, preventing the problem of premature damage due to low local structural strength.

[0017] In an optional embodiment, the main housing further comprises a cover plate disposed on the upper side of the bearing chamber, the cover plate being sleeved on the core shaft and being assembled and connected to the end plate.

[0018] Beneficial effect: The cover plate can effectively seal the bearing chamber to prevent foreign objects from entering.

[0019] In an optional embodiment, a connection hole for connecting with an external component is provided on the end plate, and the connection hole is a blind hole.

[0020] Beneficial effect: This type of connection hole can prevent foreign matter from entering the motor through itself, and can also improve insulation reliability, preventing operators from taking connectors of the wrong length, causing the connectors to extend too long into the motor and damage the internal components of the motor, ultimately leading to motor failure.

[0021] In a second aspect, the utility model further provides a ceiling fan device, which comprises: the above-mentioned motor; and a blade assembly assembled on the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional schematic diagram of a motor according to an embodiment of the utility model;

[0024] Figure 2 for Figure 1 The motor shown is a three-dimensional schematic diagram without the baffle;

[0025] Figure 3 for Figure 2 The enlarged schematic diagram of the motor at point A is shown;

[0026] Figure 4 for Figure 2 A three-dimensional schematic diagram of a motor after being cut away is shown;

[0027] Figure 5 for Figure 4Enlarged schematic view of the motor at position B as shown.

[0028] Explanation of reference numerals in the drawings:

[0029] 1. End cover; 101. Installation space;

[0030] 201. End plate; 2011. Bearing chamber; 2012. Hollow hole; 20121. First hole section; 20122. Second hole section; 20123. Step surface; 2013. Fitting hole; 2014. Connecting hole;

[0031] 202. Enclosure plate; 2021. Installation groove; 203. Baffle; 204. Fastening component; 205. Cover plate;

[0032] 3. Core shaft; 301. Bearing assembly; 4. Rotor assembly; 5. Stator assembly; 6. Magnetic conductive part. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Next, in conjunction with Figures 1 to 5 , the embodiments of the present utility model will be described.

[0035] According to an embodiment of the present utility model, on the one hand, a motor is provided, including: a housing assembly, a core shaft 3, and a driving unit. The housing assembly includes an end cover 1 and a main housing. The main housing is an aluminum alloy structural member and / or a magnesium alloy member. The main housing includes an end plate 201 and an enclosure plate 202 surrounding the end plate 201. The end plate 201 is provided with a bearing chamber 2011. The end cover 1 is assembled and connected to the side of the enclosure plate 202 away from the end plate 201. The inner wall of the enclosure plate 202 is provided with an installation groove 2021. The end cover 1 and the main housing enclose to form an installation space 101. The core shaft 3 passes through the bearing chamber 2011 and into the installation space 101. The core shaft 3 is assembled and connected to the bearing chamber 2011 through a bearing assembly 301. The core shaft 3 and the housing assembly can rotate relative to each other. The driving unit includes a rotor assembly 4, a stator assembly 5, and a magnetic conductive part 6. The stator assembly 5 is assembled and connected to the outer peripheral surface of the core shaft 3 in the installation space 101. The rotor assembly 4 is assembled and connected to the inner wall of the enclosure plate 202. The magnetic conductive part 6 is disposed in the installation groove 2021. The rotor assembly 4 contacts the enclosure plate 202 through the magnetic conductive part 6. The driving unit is adapted to drive the core shaft 3 and the housing assembly to rotate relative to each other.

[0036] When applying the motor of this embodiment, due to the presence of the magnetic conduction member 6, it can provide a magnetic conduction channel required by the magnetic field to avoid magnetic leakage. The main housing can be a more lightweight structural member, which can significantly reduce the weight of the main housing itself, thereby reducing the load on the internal support components and improving the motor efficiency. In addition, the core shaft 3 is only assembled and connected to the bearing chamber 2011 through the bearing assembly 301 on one side. Since the working conditions of the motor are mostly in a low-speed state, this single-side bearing arrangement can simplify the structure of the end cover 1 while meeting the rotation and connection requirements of the core shaft 3, and can also reduce the number of bearings used. The motor of this embodiment improves its own stability and reliability while simplifying the structure, and can also reduce the burden on the operator during motor assembly, effectively solving the problem of poor stability and load capacity caused by the complex structure of the existing low-speed direct-drive motor.

[0037] It should be noted that there is no strict limitation on the specific material of the main housing, and it is not limited to the above lightweight materials such as aluminum alloy and magnesium alloy, and can be flexibly selected according to requirements; the magnetic conduction member 6 is a metal ring with magnetic conduction characteristics; preferably, the magnetic conduction member 6 is a steel ring with magnetic conduction characteristics.

[0038] In addition, there is no limitation on the number of bearings in the bearing assembly 301, which can be a single bearing or multiple bearings arranged in sequence along the axial direction of the core shaft 3, and can be flexibly selected.

[0039] Specifically, the stator assembly 5 includes components such as an iron core, a wire holder, and enameled wire, which can refer to the conventional stator assembly 5 and will not be elaborated here.

[0040] Furthermore, as Figure 4 shown, the core shaft 3 extends along the up-down direction, the surrounding plate 202 is located below the end plate 201, and the end cover 1 is assembled and connected to the lower side of the surrounding plate 202.

[0041] It should be noted that "up" refers to the "up" direction indicated by the arrow in Figure 4 , and "down" refers to the "down" direction indicated by the arrow in Figure 4 .

[0042] In the related art, due to the complex structure of the low-speed direct-drive motor, when installing in a scene, it is necessary to transport all the components of the motor to the target location and then assemble the components one by one. Since there are many components in the low-speed direct-drive motor, the on-site assembly and installation process is not only time-consuming and laborious, but also prone to problems such as improper assembly during component assembly, making the low-speed direct-drive motor unable to operate stably and reliably subsequently.

[0043] In a possible implementation manner, the main housing is an integral structure. This form of housing assembly not only has higher overall strength but also fewer components, which can effectively reduce the steps required for assembly and can reduce the assembly errors generated during the assembly of too many components.

[0044] In a possible implementation, the end plate 201 is provided with a hollowed-out hole 2012. The housing assembly further includes a baffle 203 for blocking the hollowed-out hole 2012. The baffle 203 matches the shape of the hollowed-out hole 2012 and is detachably connected to the end plate 201. In the form of cooperation between the hollowed-out hole 2012 and the baffle 203, the baffle 203 is thinner in thickness and lighter in weight, further reducing the weight of the housing assembly while meeting the requirements of the main housing structure strength. In addition, when the motor needs to be repaired and maintained, the internal situation of the motor can also be conveniently observed by removing the baffle 203 without removing the end cover 1.

[0045] Among them, the shape and number of the hollowed-out holes 2012 are not limited. The hollowed-out holes 2012 can be one or multiple, and can be circular, rectangular, fan-shaped, etc., and can be flexibly selected according to requirements.

[0046] In a possible implementation, as Figure 3 shown, the hollowed-out hole 2012 includes a first hole section 20121 and a second hole section 20122 from top to bottom. The cross-sectional area of the first hole section 20121 is larger than that of the second hole section 20122. The connection surface between the first hole section 20121 and the second hole section 20122 forms a stepped surface 20123. The baffle 203 is located in the first hole section 20121 and cooperates with the stepped surface 20123. This form of hollowed-out hole 2012 can prevent the baffle 203 from protruding above the top surface of the end plate 201 and avoid interference during the assembly of other components. In addition, the stepped surface 20123 can also quickly and conveniently position the baffle 203 during the installation of the baffle 203, reducing the assembly difficulty.

[0047] In a possible implementation, the baffle 203 is detachably connected to the end plate 201 through a fastening member 204. The baffle 203 is provided with a perforation for the fastening member 204 to pass through. The stepped surface 20123 is provided with a mating hole 2013 that cooperates with the fastening member 204. The mating hole 2013 is a blind hole. When the fastening member 204 is connected to the mating hole 2013 in this form, it is safer and more reliable.

[0048] Specifically, the baffle 203 can be a sheet metal part, a plastic part, etc., as long as the structural strength meets the requirements and is relatively light. The fastening member 204 can be a bolt, a screw, etc.

[0049] Preferably, the fastening member 204 is a screw.

[0050] In a possible implementation, the number of the hollowed-out holes 2012 is multiple and is arranged at equal intervals along the circumference of the bearing chamber 2011. This form of arranging the hollowed-out holes 2012 can make the structural strength of the end plate 201 more uniform and prevent the problem of premature damage due to too low local structural strength.

[0051] In a possible implementation, the end plate 201 is provided with connection holes 2014 for connecting with external components. The connection holes 2014 are blind holes. On the one hand, this form of connection holes 2014 can prevent foreign objects from entering the motor through itself. On the other hand, it can also improve the insulation reliability and avoid operators taking wrong-length connectors, so that the connectors extend too long into the motor and damage the internal components of the motor, ultimately leading to the occurrence of accidents where the motor fails.

[0052] In a possible implementation, the main housing further includes a cover plate 205 covering the upper side of the bearing chamber 2011. The cover plate 205 is sleeved on the core shaft 3 and is assembled and connected with the end plate 201. The cover plate 205 can effectively block the bearing chamber 2011 to prevent foreign objects from entering.

[0053] According to an embodiment of the present invention, on the other hand, a ceiling fan device is provided, which includes: the above-mentioned motor and a blade assembly, and the blade assembly is assembled on the motor.

[0054] Specifically, the blade assembly includes multiple groups of blades. The blades are arranged at intervals along the circumferential direction of the main housing. The shape and installation method of the blades can refer to the blades of existing fans, and will not be further elaborated here.

[0055] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A motor, characterized in that, Comprising: A housing assembly, including an end cover (1) and a main housing. The main housing is an aluminum alloy structural member and / or a magnesium alloy member. The main housing includes an end plate (201) and a surrounding plate (202) surrounding the end plate (201). The end plate (201) is provided with a bearing chamber (2011). The end cover (1) is assembled and connected to the side of the surrounding plate (202) away from the end plate (201). An installation groove (2021) is provided on the inner wall of the surrounding plate (202). The end cover (1) and the main housing enclose an installation space (101); A mandrel (3), passing through the bearing chamber (2011) into the installation space (101). The mandrel (3) is assembled and connected to the bearing chamber (2011) through a bearing assembly (301). The mandrel (3) and the housing assembly can rotate relative to each other; A drive unit, including a rotor assembly (4), a stator assembly (5), and a magnetic conductive member (6). The stator assembly (5) is assembled and connected to the outer peripheral surface of the mandrel (3) in the installation space (101). The rotor assembly (4) is assembled and connected to the inner wall of the surrounding plate (202). The magnetic conductive member (6) is arranged in the installation groove (2021). The rotor assembly (4) contacts the surrounding plate (202) through the magnetic conductive member (6). The drive unit is adapted to drive the mandrel (3) and the housing assembly to rotate relative to each other.

2. The motor according to claim 1, characterized in that The main housing is of an integral structure.

3. The motor according to claim 1 or 2, characterized in that, Hollow holes (2012) are provided on the end plate (201). The housing assembly further includes a baffle (203) for blocking the hollow holes (2012). The baffle (203) matches the shape of the hollow holes (2012) and is detachably connected to the end plate (201).

4. The motor according to claim 3, characterized in that, The hollow holes (2012) include a first hole section (20121) and a second hole section (20122) from top to bottom. The cross-sectional area of the first hole section (20121) is larger than that of the second hole section (20122). The connection surface between the first hole section (20121) and the second hole section (20122) forms a step surface (20123). The baffle (203) is located in the first hole section (20121) and cooperates with the step surface (20123).

5. The motor according to claim 4, characterized in that, The baffle (203) is detachably connected to the end plate (201) through a fastening member (204). A through hole for the fastening member (204) to pass through is provided on the baffle (203). A mating hole (2013) for cooperating with the fastening member (204) is provided on the step surface (20123). The mating hole (2013) is a blind hole.

6. The motor according to claim 3, characterized in that, The number of the hollow holes (2012) is multiple, and they are arranged at equal intervals along the circumferential direction of the bearing chamber (2011).

7. The motor according to claim 3, characterized in that, The main housing further includes a cover plate (205) covering the upper side of the bearing chamber (2011). The cover plate (205) is sleeved on the mandrel (3) and assembled and connected to the end plate (201).

8. The motor according to claim 3, characterized in that, Connection holes (2014) for connecting with external components are provided on the end plate (201). The connection holes (2014) are blind holes.

9. A ceiling fan device, characterized in that, Comprising: The motor according to any one of claims 1 to 8; A blade assembly, assembled to the motor.

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