CN115133685A - Rechargeable driving device for platform fan - Google Patents
Rechargeable driving device for platform fan Download PDFInfo
- Publication number
- CN115133685A CN115133685A CN202210787676.4A CN202210787676A CN115133685A CN 115133685 A CN115133685 A CN 115133685A CN 202210787676 A CN202210787676 A CN 202210787676A CN 115133685 A CN115133685 A CN 115133685A
- Authority
- CN
- China
- Prior art keywords
- rotor
- driving device
- motor
- rechargeable
- outer rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2788—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Abstract
The invention relates to the technical field of electric fans, in particular to a rechargeable driving device for a platform fan, which comprises a direct current brushless outer rotor motor component, a dust cover, a lithium battery, a driving plate and an electric appliance box component, wherein the direct current brushless outer rotor motor component comprises a motor mounting seat, a bearing, a stator and an outer rotor component, the outer rotor component comprises a rotor shell, a magnetic ring, a shaft sleeve and a rotor shaft, the electric appliance box component comprises an electric appliance box and a cover plate, the driving device is provided with the magnetic ring, and extra electric energy is not needed to generate a magnetic field, so the driving device has high motor efficiency, the rotor shell is directly used as the motor shell, the shell material of the motor is reduced, the motor cost is effectively reduced, and the notch of a stator core of the direct current outer rotor motor component is outward, a high-speed winder stator winding can be used, the production efficiency of a factory is improved, the lithium battery is used for supplying power, the mobile phone can be moved freely without being connected by a wire, and can also be used outdoors without a power supply.
Description
Technical Field
The invention relates to the technical field of electric fans, in particular to a driving device for a rechargeable table fan.
Background
In the design of the motor of the modern desk-floor type electric fan, a low-power alternating current asynchronous motor is always used, and the low-power alternating current asynchronous motor has the following defects: the energy efficiency of the motor is low, and the temperature of the motor is increased; secondly, the motor has a complex structure, manual wire embedding is needed when the motor winding is produced, and the production efficiency is low; thirdly, the iron core, the rotor and the copper wire used by the motor are made of more materials, and the cost is high; and fourthly, an electric wire is always connected, the electric wire cannot be moved randomly and can be operated only in a place where a mains supply is available, and the use experience of a user is reduced, so that the use of the low-power alternating-current asynchronous motor does not meet the energy-saving and emission-reduction requirements advocated by the nation, does not meet the requirements of low cost and high production efficiency of a factory, and reduces the use experience of the user.
Disclosure of Invention
In summary, the present invention provides a rechargeable driving device for a desk fan, which solves the technical deficiencies of low energy efficiency, low production efficiency, high cost and incapability of moving freely of a motor of a desk powerful electric fan.
In order to solve the technical problems provided by the invention, the technical scheme is as follows: a driving device for a rechargeable tableland fan comprises a direct-current brushless outer rotor motor assembly, a dustproof cover, a lithium battery, a driving plate and an electric box assembly;
the direct-current brushless outer rotor motor component comprises a motor mounting seat, a bearing, a stator and an outer rotor component;
the outer rotor assembly comprises a rotor shell, a magnetic ring, a shaft sleeve and a rotor shaft;
the electric appliance box assembly comprises an electric appliance box and a cover plate.
Optionally, the rotor housing is formed by stamping and stretching a steel plate, and a cylindrical through hole is stamped and stretched in the middle of the end part of the rotor housing.
Optionally, the rotating surface of the rotor housing is stamped and stretched to form a step.
Optionally, a flange is punched and stretched outwards at the mouth of the rotor housing.
Optionally, an annular sealing ring is arranged between the dust cover and the rotor shell, a cavity is formed in the annular sealing ring, and a medium is filled in the cavity.
Optionally, one side of the dust cover contacting the turned-over edge is provided with a ring groove, and the ring groove and the cavity are located on the same horizontal plane.
Optionally, the rotor housing and the rotor shaft are connected by a shaft sleeve.
Optionally, the shaft sleeve is formed by processing steel and aluminum.
Compared with the prior art, the invention has the following beneficial effects:
1. the driving device for the rechargeable tableland fan is provided with the magnetic ring, and does not need extra electric energy to generate a magnetic field, so that the driving device has high motor efficiency, the rotor shell is directly used as the motor shell, the shell material of the motor is reduced, the motor cost is effectively reduced, the notch of the stator core of the direct-current brushless outer rotor motor component is outward, the stator winding can be wound by using a high-speed winding machine, the production efficiency of a factory is improved, the lithium battery is used for supplying power, the lithium battery is not connected by wires, and the driving device can be moved randomly and can be placed outdoors to be used in places without a power supply.
2. According to the driving device for the rechargeable table fan, when the annular sealing ring is arranged between the flanging and the dustproof cover, the annular sealing ring can be matched with the flanging and the dustproof cover, so that the dustproof and waterproof effects of the driving device are improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an exploded view of the drive of the present invention;
fig. 3 is an exploded view of the dc brushless external rotor motor assembly;
FIG. 4 is an exploded view of the outer rotor assembly of the present invention;
FIG. 5 is a schematic view of a rotor housing according to the present invention;
FIG. 6 is a schematic view of the structure of the flange and the dust cap of the present invention;
FIG. 7 is an enlarged view of a portion A of FIG. 6;
FIG. 8 is a schematic view of an example of application of the present invention;
in the figure: the brushless external rotor motor comprises a direct-current brushless external rotor motor component 1, an external rotor component 10, a rotor shaft 101, a shaft sleeve 102, a rotor shell 103, a magnetic ring 104, a cylindrical through hole 1031, a step 1032, a flanging 1033, a stator 11, a motor mounting seat 12, a bearing 13, a dust cover 2, an electrical box 3, a drive plate 4, a lithium battery 5, a cover plate 6, an annular sealing ring 7, a cavity 71 and a ring groove 72.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be made with reference to the accompanying drawings and detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention.
Embodiment 1, as shown in fig. 1 to 8, a driving device for a rechargeable tableland fan is designed, which comprises a dc brushless external rotor motor assembly 1, a dust cover 2, a lithium battery 5, a driving board 4 and an electrical box assembly; the direct-current brushless outer rotor motor component 1 comprises a motor mounting seat 12, a bearing 13, a stator 11 and an outer rotor component 10; the motor mounting base 12 is formed by aluminum die casting, and a through hole is processed in the middle; the stator 11 is composed of a stator core and a stator winding wound on the stator core; the outer rotor assembly 10 comprises a rotor shell 103, a magnetic ring 104, a shaft sleeve 102 and a rotor shaft 101;
the dust cover 2 is formed by plastic injection molding; the lithium battery is a 18650 lithium battery with 12V voltage; the driving plate 4 consists of an electronic circuit and controls the starting, speed regulation and closing of the driving device through corresponding control strategies; the electric appliance box component comprises an electric appliance box 3 and a cover plate 6, and is formed by plastic injection molding;
the rotor housing 103 is formed by punching and stretching a steel plate, and a cylindrical through hole is punched and stretched in the middle of the end part of the rotor housing 103 and is used for installing the shaft sleeve 102;
a step 1032 is punched and stretched on the rotating surface of the rotor shell 103, so that the roundness of the outer circle of the rotor is enhanced and the magnetic ring 104 is positioned;
a flange 1033 is punched and stretched outwards at the opening part of the rotor shell 103, so that the roundness of the outer circle of the rotor is further enhanced, and meanwhile, the flange is matched with the dustproof cover 2 to prevent dust from entering the motor;
the rotor housing 103 and the rotor shaft 101 are connected through the shaft sleeve 102, and the axial and radial contact areas of the rotor housing 103, the shaft sleeve 102 and the rotor shaft 101 are increased, so that the rotor housing 103 and the rotor shaft 101 are connected more firmly, and the concentricity and the coaxiality are higher; the shaft sleeve 102 is formed by processing steel and aluminum;
specifically, when the direct current brushless external rotor motor assembly 1 is installed, referring to fig. 1, the direct current brushless external rotor motor assembly is installed in the middle of the front end face of the electrical box 3; the dust cover 2 passes through the direct current brushless outer rotor motor component 1 and is arranged on the front end surface of the electrical box 3; the driving plate 4 is arranged at the inner upper part of the electric appliance box 3; the lithium battery 5 is arranged inside the electric appliance box 3; the cover plate 6 is arranged at the back of the electric appliance box 3;
referring to fig. 2, the bearing 13 is installed in a through hole of the motor mounting base 12, and the stator 11 is installed on an outer circumferential surface of the motor mounting base 12; the rotor shaft 101 of the outer rotor assembly 10 penetrates through the bearing 13, so that the outer rotor assembly 10 is sleeved on the stator 11, and the installation of the direct-current brushless outer rotor motor assembly 1 is completed.
Referring to fig. 3, the rotor shaft 101 is inserted into the shaft hole of the bushing 102, and the bushing 102 is fitted into the cylindrical through hole 1031 of the rotor housing 103; the magnetic ring 104 is arranged in the rotor shell 103 and is positioned by the step 1032;
referring to fig. 4, a cylindrical through hole 1031 is punched and drawn in the middle of the end of the rotor housing 103 for mounting the bushing 102; a step 1032 is punched and stretched on the rotating surface of the rotor shell 103, so that the roundness of the excircle of the rotor is enhanced and the positioning effect of the magnetic ring 104 is achieved; the mouth of the rotor housing 103 is stamped and stretched outwards to form a turned edge 1033, which plays a role in further enhancing the roundness of the outer circle of the rotor, and is matched with the dust cover 2 to prevent dust from entering the interior of the driving device.
In embodiment 2, referring to fig. 6 to 7, an annular seal ring 7 is disposed between the dust cover 2 and the turned-over edge 1033, a cavity 71 is formed in the annular seal ring 7, a medium is filled in the cavity 71, ring grooves 72 are formed in both sides of the dust cover 2 contacting the turned-over edge 1033, and the ring grooves 72 and the cavity 71 are located on the same horizontal plane;
specifically, after the annular sealing ring 7 is arranged between the turned-over edge 1033 and the dust cover 2, firstly, the annular sealing ring can be matched with the turned-over edge 1033 and the dust cover 2, so that the dustproof and waterproof effects of the driving device are improved, meanwhile, a medium is filled in the cavity 71, the medium is liquid or gas, in this embodiment, the medium is liquid with good thermal expansion and cold contraction properties such as kerosene and mercury, when the driving device works, the generated heat can enable the medium to be heated and expanded, then the volume of the cavity 71 is increased, and after the volume of the cavity 71 is increased, the gap between the turned-over edge 1033 and the dust cover 2 can be further filled, so that the probability that dust enters the inside of the driving device through the gap between the turned-over edge 1033 and the dust cover 2 is further reduced, so that the dustproof effect of the driving device is improved, and meanwhile, the medium is heated and expanded, and can also absorb part of heat generated when the driving device works;
it should be noted that, assuming that the medium used in the present invention is kerosene, because the boiling point of kerosene is 180-310 ℃, the thermal expansion coefficient of kerosene is 1.81 multiplied by the minus fourth power of 10, therefore, it can be used as a medium with temperature variation within-45-150 ℃;
furthermore, the thickness of the annular sealing ring 7 containing the cavity 71 is 300-400 mm, the position of the cavity 71 is reserved when the mold is opened, a filling hole is reserved at the position of the cavity 71, then before the annular sealing ring 7 is used, a medium is filled in advance, then when the annular sealing ring 7 is placed between the flanging 1033 and the dust cover 2, the cavity 71 is extruded along with the fixation between the flanging 1033 and the dust cover 2, so that the gap between the flanging 1033 and the dust cover 2 is filled, the dust-proof effect of the driving device is improved, moreover, when the driving device works, the direct current brushless outer rotor motor assembly 1 rotates and is in an air suction state, the dust entering amount in the driving device is increased, so that the annular groove 72 is formed in one side of the dust cover 2, which is in contact with the flanging 1033, and the annular groove 72 and the cavity 71 are located on the same horizontal plane, thus achieving the purpose, the purpose is to drive the cavity 71 to deform after the medium in the cavity 71 expands due to heating, so that the deformed cavity 71 enters the annular grooves 72 in the dust cover 2 and the turned-over edge 1033, gaps between the dust cover 2 and the turned-over edge 1033 are further filled, and the dust-proof effect of the driving device during working is improved.
Claims (8)
1. A driving device for a rechargeable tableland fan is characterized by comprising a direct-current brushless outer rotor motor assembly, a dust cover, a lithium battery, a driving plate and an electric box assembly;
the direct-current brushless outer rotor motor component comprises a motor mounting seat, a bearing, a stator and an outer rotor component;
the outer rotor assembly comprises a rotor shell, a magnetic ring, a shaft sleeve and a rotor shaft;
the electric appliance box assembly comprises an electric appliance box and a cover plate.
2. The rechargeable desk fan as claimed in claim 1, wherein the rotor housing is formed by punching and drawing a steel plate, and a cylindrical through hole is punched and drawn in the middle of the end of the rotor housing.
3. The charging type driving device for desk fan as claimed in claim 2, wherein the rotating surface of the rotor housing is punched and extended with a step.
4. The rechargeable driving device for a desk fan as claimed in claim 3, wherein the opening of the rotor housing is punched and stretched with a flange.
5. The driving device for the rechargeable desk fan as claimed in claim 4, wherein an annular sealing ring is disposed between the dust cap and the rotor housing, a cavity is formed in the annular sealing ring, and a medium is filled in the cavity.
6. The driving device of claim 5, wherein the dust cover has a ring groove on the side contacting the flange, and the ring groove and the cavity are located on the same horizontal plane.
7. The rechargeable driving device for a desk fan as claimed in claim 5, wherein the rotor housing and the rotor shaft are coupled by a bushing.
8. The rechargeable driving device for a desk fan as claimed in claim 7, wherein the sleeve is formed by machining steel and aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787676.4A CN115133685A (en) | 2022-07-06 | 2022-07-06 | Rechargeable driving device for platform fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787676.4A CN115133685A (en) | 2022-07-06 | 2022-07-06 | Rechargeable driving device for platform fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115133685A true CN115133685A (en) | 2022-09-30 |
Family
ID=83381538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210787676.4A Pending CN115133685A (en) | 2022-07-06 | 2022-07-06 | Rechargeable driving device for platform fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115133685A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130964Y (en) * | 1992-03-21 | 1993-04-28 | 吕燕 | Self-tighting sealing ring |
| JP2013150441A (en) * | 2012-01-19 | 2013-08-01 | Mitsuba Corp | Outer rotor type brushless motor |
| CN209642437U (en) * | 2018-11-12 | 2019-11-15 | 无锡双能达科技有限公司 | A kind of aerator external rotor electric machine |
| CN210075013U (en) * | 2019-05-10 | 2020-02-14 | 佛山市顺德区坚鹏实业有限公司 | Direct current fan motor |
| CN215719677U (en) * | 2021-08-27 | 2022-02-01 | 深圳市艾尼亚电子科技有限公司 | Rechargeable fan convenient to adjustment mounting means |
| CN114665649A (en) * | 2022-05-10 | 2022-06-24 | 苏州南亚电机科技有限公司 | Waterproof dustproof external rotor electric machine |
-
2022
- 2022-07-06 CN CN202210787676.4A patent/CN115133685A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130964Y (en) * | 1992-03-21 | 1993-04-28 | 吕燕 | Self-tighting sealing ring |
| JP2013150441A (en) * | 2012-01-19 | 2013-08-01 | Mitsuba Corp | Outer rotor type brushless motor |
| CN209642437U (en) * | 2018-11-12 | 2019-11-15 | 无锡双能达科技有限公司 | A kind of aerator external rotor electric machine |
| CN210075013U (en) * | 2019-05-10 | 2020-02-14 | 佛山市顺德区坚鹏实业有限公司 | Direct current fan motor |
| CN215719677U (en) * | 2021-08-27 | 2022-02-01 | 深圳市艾尼亚电子科技有限公司 | Rechargeable fan convenient to adjustment mounting means |
| CN114665649A (en) * | 2022-05-10 | 2022-06-24 | 苏州南亚电机科技有限公司 | Waterproof dustproof external rotor electric machine |
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