CN116317317B - Low-noise direct-current permanent magnet motor and juicer - Google Patents
Low-noise direct-current permanent magnet motor and juicer Download PDFInfo
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- CN116317317B CN116317317B CN202310551885.3A CN202310551885A CN116317317B CN 116317317 B CN116317317 B CN 116317317B CN 202310551885 A CN202310551885 A CN 202310551885A CN 116317317 B CN116317317 B CN 116317317B
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- permanent magnet
- air inlet
- rotating shaft
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000009467 reduction Effects 0.000 claims abstract description 31
- 238000002955 isolation Methods 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims abstract description 10
- 230000017525 heat dissipation Effects 0.000 claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 13
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 26
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000003993 interaction Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 235000013322 soy milk Nutrition 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001851 vibrational circular dichroism spectroscopy Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J19/00—Household machines for straining foodstuffs; Household implements for mashing or straining foodstuffs
- A47J19/02—Citrus fruit squeezers; Other fruit juice extracting devices
-
- 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
-
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model relates to a direct current permanent magnet motor technical field especially relates to a direct current permanent magnet motor and juice extractor of low noise, direct current permanent magnet motor includes motor casing, set firmly in motor casing inner wall's stator, rotate the pivot of wearing to locate motor casing and set firmly in the rotor of pivot, motor casing outer wall sets firmly first vibration isolation and noise reduction module, first vibration isolation and noise reduction module includes connecting portion and closing cap portion, connecting portion set firmly in motor casing outer wall, connecting portion are connected with electrical apparatus shell inner wall, closing cap portion sets firmly in connecting portion, closing cap portion laminating mutually with motor casing outer wall; a heat radiation opening is formed in the position, corresponding to the sealing cover position, of the motor shell, an air inlet is formed in one side, away from the heat radiation opening, of the motor shell, a plugging assembly is arranged on the air inlet, and a fan cooling module is arranged between the rotating shaft, corresponding to the heat radiation opening, and the air inlet. The vibration that this application can make the conduction to electrical apparatus shell reduces to reduced domestic appliance's noise, satisfied consumer to domestic appliance low noise's requirement.
Description
Technical Field
The application relates to the technical field of direct-current permanent magnet motors, in particular to a low-noise direct-current permanent magnet motor and a juicer.
Background
The direct-current permanent magnet motor can be divided into a direct-current permanent magnet brushless motor and a direct-current permanent magnet brush motor according to the existence of brushes, and is widely applied to various portable electronic devices such as recorders, VCDs, jukeboxes and the like, and is also widely applied to household appliances such as juicers, cooking machines, soymilk machines and the like.
The Chinese patent with the authorized bulletin number of CN202206280U discloses a permanent magnet direct current motor for juicers, cooking machines and soymilk machines, which comprises a motor shell, a magnetic steel stator, a rotor shaft and front and rear end covers, wherein the rotor is arranged in bearings of the front and rear end covers of the motor shell through the rotor shaft, the rear end of the rotor is provided with a cooling fan and a commutator, and a carbon brush is arranged on a middle plate connected with the rear end cover; the front end cover and the rear end cover of the motor shell are in a cross-shaped structure; the cooling fan is arranged on the rotor shaft outside the front end shell of the rotor. Through the mode of installing cooling fan at the rear end of motor housing inner rotor, or installing cooling fan on the rotor shaft outside the rotor front end casing, dispel the heat to the motor inside, make the inside ventilation of motor good, effectually reduced permanent magnetism direct current motor operating temperature, solved the relatively poor problem of heat dissipation function that small-size permanent magnetism direct current motor is used for the juice extractor to exist, ensured juice extractor's normal use.
However, because the rotor has larger moment of inertia, vibration is easy to generate in the running process of the existing direct-current permanent magnet motor, and the vibration is transmitted to the electric appliance shell to form noise, so that the requirement of consumers on low noise of household appliances is difficult to meet; therefore, further improvement can be made.
Disclosure of Invention
In order to reduce the noise of household appliances and meet the requirement of consumers on low noise of household appliances, the application provides a low-noise direct-current permanent magnet motor and a juicer.
In a first aspect, the present application provides a low noise dc permanent magnet motor, which adopts the following technical scheme:
the utility model provides a direct current permanent magnet motor of low noise, includes motor casing, sets firmly in the stator of motor casing inner wall, rotates the pivot of wearing to locate the motor casing and sets firmly in the rotor of pivot, motor casing outer wall sets firmly first shock insulation and falls the noise module, first shock insulation and falls the noise module and includes connecting portion and closing cap portion, connecting portion set firmly in motor casing outer wall, and connecting portion are connected with the electrical apparatus shell inner wall, closing cap portion sets firmly in connecting portion, and closing cap portion laminating mutually with motor casing outer wall; the motor casing corresponds to the closing cap position and has seted up the thermovent, the air inlet has been seted up to motor casing one side that keeps away from the thermovent, and the air inlet installs shutoff subassembly, the pivot corresponds to the thermovent and installs the fan cooling module with the air inlet between the position.
Through the technical scheme, when the direct-current permanent magnet motor operates, the rotating shaft rotates and outputs under the interaction of the stator and the rotor, and the rotating shaft enables the inner cavity of the motor shell to form air flow from the air inlet to the direction of the heat radiation opening through the fan cooling module; at the moment, the air inlet is opened through the plugging component, the air flow passes through the heat dissipation opening and then extrudes the opening cover part to form an air flow in the direction from the outside of the motor shell to the air inlet to the inner cavity of the motor shell to the heat dissipation opening to the outside of the motor shell, the air flow takes away heat generated in the running process of the direct-current permanent-magnet motor, the working temperature of the direct-current permanent-magnet motor is reduced as much as possible, and the normal running of the direct-current permanent-magnet motor is ensured; and the vibration generated in the running process of the direct-current permanent magnet motor is partially consumed by the first vibration isolation and noise reduction module, so that the vibration transmitted to the electric appliance shell is reduced, the noise of the household appliance is reduced, and the requirement of consumers on low noise of the household appliance is met.
Optionally, the sealing cover part is fixedly provided with a sealing block corresponding to the heat dissipation opening, and the sealing block is embedded in the heat dissipation opening from outside to inside.
Through the technical scheme, when the direct-current permanent magnet motor runs, the motor shell generates an acting force opposite to the rotation direction of the rotating shaft, the connecting part generates lateral displacement under the acting force, and the connecting part drives the sealing cover part to generate lateral offset, so that the sealing block part is withdrawn from the heat dissipation port, and further the sealing block forms a supporting effect on the motor shell, so that the sealing cover part and the motor shell are mutually separated, and air flow in the direction of the outer part of the motor shell, the air inlet, the inner cavity of the motor shell, the heat dissipation port and the outer part of the motor shell is formed conveniently; after the direct-current permanent magnet motor is stopped, the lateral displacement of the connecting part is restored, so that the plugging block is embedded into the corresponding heat dissipation opening from outside to inside, the waterproof performance of the motor shell is improved, the inner cavity of the motor shell forms a negative pressure environment along with gradual dissipation of waste heat of the direct-current permanent magnet motor, the plugging block is adsorbed to the corresponding heat dissipation opening, the waterproof performance of the motor shell is further improved, and the motor shell is convenient to wash and clean after being used by partial household appliances.
Optionally, the connecting portion and the closing cap portion are formed integrally by rubber materials, a positioning groove is formed at the joint of the connecting portion and the closing cap portion, and a positioning block which is in clamping fit with the positioning groove is fixedly arranged on the outer wall of the motor shell.
Through the technical scheme, when the first vibration isolation and noise reduction module is installed, positioning installation is realized through the positioning groove and the positioning block, so that the plurality of plugging blocks can be aligned to be embedded into the corresponding heat dissipation openings.
Optionally, the shutoff subassembly includes shutoff head, shutoff spring, push away ring and thimble, the shutoff head is from outside to embedded locating the air inlet, the shutoff spring both ends are connected with shutoff head and air inlet inner wall respectively to make the shutoff head have the trend of inlaying locating the air inlet all the time, push away ring sliding sleeve locates the pivot, the thimble both ends are connected with shutoff head and push away the ring respectively.
According to the technical scheme, when the direct-current permanent magnet motor operates, the plug is pushed by the push ring and the ejector pin, so that the plug overcomes the elasticity of the plug spring and exits from the air inlet, and the plug assembly can open the air inlet according to requirements; after the direct-current permanent magnet motor stops, the pushing force of the pushing ring and the ejector pin on the blocking head is withdrawn, the blocking head is embedded into the air inlet again from outside to inside under the elastic force of the blocking spring, and the blocking assembly can be used for blocking the air inlet according to requirements.
Optionally, the fan cooling module includes fixed fan and movable fan, fixed fan sets firmly in the pivot and corresponds the thermovent position, movable fan cover is located the pivot and corresponds the air inlet position, be equipped with sliding transmission structure between movable fan and the pivot, and in the pivot rotation in-process, movable fan slides to with push ring looks butt.
Through the technical scheme, when the direct-current permanent magnet motor runs, the rotating shaft enables the inner cavity of the motor shell to form air flow from the air inlet to the direction of the heat radiation opening through the fixed fan, and the rotating shaft strengthens the air flow from the air inlet to the direction of the heat radiation opening through the movable fan; in the process, the movable fan generates acting force opposite to the air flow direction, the movable fan slides relative to the rotating shaft under the acting force, so that the movable fan slides to be abutted against the push ring, and the plug is pushed by the push ring and the ejector pin, so that the plug overcomes the elasticity of the plug spring to withdraw from the air inlet, and the plug assembly opens the air inlet according to requirements; after the direct current permanent magnet motor stops, the movable fan, the push ring and the ejector pin are reset, and the blocking head is embedded into the air inlet again from outside to inside under the elastic action of the blocking spring, so that the blocking assembly can block the air inlet according to requirements.
Optionally, the sliding transmission structure comprises transmission teeth, the transmission teeth are fixedly arranged on the inner wall of the movable fan, and a transmission groove which is matched with the transmission teeth in a sliding manner is formed in the outer wall of the rotating shaft.
Through above-mentioned technical scheme, can realize power transmission through driving tooth and drive slot between pivot and the movable fan, make simultaneously between pivot and the movable fan can realize the relative slip through driving tooth and drive slot, realize slip and transmission promptly.
Optionally, be equipped with between push ring and the movable fan and fall the friction subassembly, fall the friction subassembly and include the first magnetic group and the second magnetic group of mutual repulsion, first magnetic group includes a plurality of first magnets that distribute and set firmly in the push ring along the pivot center, the second magnetic group includes a plurality of first magnets that distribute and set firmly in the movable fan along the pivot center.
Through the technical scheme, when the movable fan slides to be in butt joint with the push ring, the first magnetic group and the second magnetic group repel each other, so that the friction force between the movable fan and the push ring is reduced, the abrasion speed between the movable fan and the push ring is slowed down, and the service life of the direct-current permanent magnet motor is prolonged.
In a second aspect, the present application provides a juice extractor, which adopts the following technical scheme:
the juicer comprises an electric appliance shell and the low-noise direct-current permanent magnet motor, wherein a second vibration isolation and noise reduction module is fixedly arranged on the inner wall of the electric appliance shell, and the first vibration isolation and noise reduction module is fixedly arranged on the inner wall of the second vibration isolation and noise reduction module.
Through the technical scheme, the rubber layer of the second vibration isolation and noise reduction module can further partially consume vibration generated in the running process of the direct-current permanent magnet motor, so that the vibration transmitted to the electric appliance shell is reduced, the noise of the household appliance is reduced, and the requirement of a consumer on low noise of the household appliance is met.
Optionally, the second vibration isolation noise reduction module includes a plurality of rubber layers and a plurality of metal layers, rubber layer and metal layer are from outside to inside alternately arrange, and are connected between adjacent rubber layer and the metal layer.
Through the technical scheme, the rubber layer of the second vibration isolation and noise reduction module can further partially consume vibration generated in the running process of the direct-current permanent magnet motor, so that the vibration transmitted to the electric appliance shell is reduced, the noise of the household appliance is reduced, and the requirement of a consumer on low noise of the household appliance is met.
In summary, the present application at least includes the following beneficial technical effects:
1. when the direct-current permanent magnet motor operates, the rotating shaft rotates and outputs under the interaction of the stator and the rotor, and the rotating shaft enables the inner cavity of the motor shell to form air flow from the air inlet to the direction of the heat radiation opening through the fan cooling module; at the moment, the air inlet is opened through the plugging component, the air flow passes through the heat dissipation opening and then extrudes the opening cover part to form an air flow in the direction from the outside of the motor shell to the air inlet to the inner cavity of the motor shell to the heat dissipation opening to the outside of the motor shell, the air flow takes away heat generated in the running process of the direct-current permanent-magnet motor, the working temperature of the direct-current permanent-magnet motor is reduced as much as possible, and the normal running of the direct-current permanent-magnet motor is ensured; the vibration generated in the running process of the direct-current permanent magnet motor is partially consumed by the first vibration isolation and noise reduction module, so that the vibration transmitted to the electric appliance shell is reduced, the noise of the household appliance is reduced, and the requirement of consumers on low noise of the household appliance is met;
2. when the direct-current permanent magnet motor runs, the motor shell generates acting force opposite to the rotation direction of the rotating shaft, the connecting part generates lateral displacement under the acting force, so that the connecting part drives the sealing cover part to generate lateral offset, the sealing block part is withdrawn from the heat dissipation port, and the sealing block is supported on the motor shell, so that the sealing cover part and the motor shell are mutually separated, and air flow in the direction of the outer part of the motor shell, the air inlet, the inner cavity of the motor shell, the heat dissipation port and the outer part of the motor shell is formed conveniently; after the direct-current permanent magnet motor is stopped, the lateral displacement of the connecting part is restored, so that the plugging block is embedded into the corresponding heat dissipation opening from outside to inside, the waterproof performance of the motor shell is improved, and as the waste heat of the direct-current permanent magnet motor is gradually dissipated, the inner cavity of the motor shell forms a negative pressure environment, the plugging block is adsorbed to the corresponding heat dissipation opening, the waterproof performance of the motor shell is further improved, and the water washing and cleaning of partial household appliances are facilitated after the motor shell is used;
3. the rubber layer of the second vibration isolation and noise reduction module can further partially consume vibration generated in the running process of the direct-current permanent magnet motor, so that the vibration transmitted to the electric appliance shell is reduced, the noise of the household appliance is reduced, and the requirement of a consumer on low noise of the household appliance is met.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of a dc permanent magnet motor of the present application.
Fig. 2 is a schematic overall structure of the first vibration isolation and noise reduction module in the present application.
Fig. 3 is a cross-sectional view of the overall structure of the closure assembly of the present application.
Fig. 4 is a cross-sectional view of the entire structure of the juice extractor of the present application.
Reference numerals illustrate: 1. a motor housing; 11. a heat radiation port; 12. an air inlet; 13. a plugging assembly; 131. a blocking head; 132. a blocking spring; 133. a push ring; 134. a thimble; 2. a stator; 3. a rotating shaft; 4. a rotor; 5. the first vibration isolation and noise reduction module; 51. a connection part; 52. a cover part; 53. a block; 6. a fan cooling module; 61. fixing a fan; 62. a movable fan; 63. a drive tooth; 64. a transmission groove; 71. a positioning groove; 72. a positioning block; 8. a friction reducing assembly; 81. a first magnetic group; 82. a second magnetic group; 9. an electrical appliance housing; 10. the second vibration isolation and noise reduction module; 101. a rubber layer; 102. a metal layer.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The application discloses a direct current permanent magnet motor of low noise.
Referring to fig. 1 to 3, the low-noise direct current permanent magnet motor comprises a motor housing 1, a stator 2 fixedly arranged on the inner wall of the motor housing 1, a rotating shaft 3 rotatably penetrating through the motor housing 1 and a rotor 4 fixedly arranged on the rotating shaft 3; the motor shell 1 is fixedly provided with a first vibration isolation and noise reduction module 5 on the outer wall, and is used for reducing vibration transmission in the running process of the direct-current permanent magnet motor so as to reduce noise and meet the requirement of consumers on low noise of household appliances.
The first vibration isolation and noise reduction module 5 specifically includes a connection portion 51 and a plurality of cover portions 52; wherein, the connecting part 51 and the plurality of cover parts 52 are integrally formed by rubber materials, the connecting part 51 is in a cylindrical structure, the inner contour of the connecting part 51 is matched with the outer contour of the motor shell 1, the cover parts 52 are in a strip-shaped structure with arc-shaped cross sections, and the inner contour of the cover parts 52 is also matched with the outer contour of the motor shell 1; the connecting portion 51 is directly fixed on the outer wall of the motor casing 1 in an adhesive mode, the outer side of the connecting portion 51 is indirectly fixed on the inner wall of the electric appliance casing 9 in an adhesive mode, the sealing cover portions 52 are located below the connecting portion 51, the sealing cover portions 52 are attached to the outer wall of the motor casing 1, and accordingly stress separation can be achieved between the sealing cover portions 52 and the motor casing 1.
The motor casing 1 corresponds to the position of the sealing cover part 52, namely, the outer wall of the bottom of the motor casing 1 is provided with a plurality of evenly distributed heat dissipation openings 11, one side of the motor casing 1 away from the heat dissipation openings 11, namely, the top of the motor casing 1 is provided with a plurality of evenly distributed air inlets 12, and the air inlets 12 are provided with sealing components 13, so that the air inlets 12 can be opened/closed according to requirements.
A fan cooling module 6 is arranged between the position of the rotating shaft 3 corresponding to the heat radiation opening 11 and the air inlet 12, so that the inner cavity of the motor shell 1 forms air flow from the air inlet 12 to the heat radiation opening 11.
When the direct-current permanent magnet motor operates, the rotating shaft 3 rotates and outputs under the interaction of the stator 2 and the rotor 4, and the rotating shaft 3 enables the inner cavity of the motor shell 1 to form air flow from the air inlet 12 to the heat dissipation port 11 through the fan cooling module 6; at this time, the air inlet 12 is opened through the plugging assembly 13, and the air flow passes through the heat dissipation opening 11 and then extrudes the opening cover 52 to form an air flow in the direction from the outside of the motor shell 1, the air inlet 12, the inner cavity of the motor shell 1, the heat dissipation opening 11 and the outside of the motor shell 1, and the air flow takes away the heat generated in the running process of the direct-current permanent-magnet motor, so that the working temperature of the direct-current permanent-magnet motor is reduced as much as possible, and the normal running of the direct-current permanent-magnet motor is ensured; and the vibration generated in the running process of the direct-current permanent magnet motor is partially consumed by the first vibration isolation and noise reduction module 5, so that the vibration transmitted to the electric appliance shell 9 is reduced, the noise of the household appliance is reduced, and the requirement of consumers on low noise of the household appliance is met.
In this embodiment, the sealing blocks 53 are fixed at positions of the sealing cover 52 corresponding to the heat dissipation openings 11, the sealing blocks 53 are in a spherical protrusion structure, and the plurality of sealing blocks 53 are embedded in the corresponding heat dissipation openings 11 from outside to inside. When the direct current permanent magnet motor operates, the motor shell 1 generates a force opposite to the rotation direction of the rotating shaft 3, the connecting part 51 generates lateral displacement under the force, so that the connecting part 51 drives the sealing cover part 52 to generate lateral offset, the sealing block 53 is partially withdrawn from the heat dissipation port 11, and the sealing block 53 forms a supporting function on the motor shell 1, so that the sealing cover part 52 and the motor shell 1 are mutually separated, and air flow in the direction from the outside of the motor shell 1 to the air inlet 12 to the inner cavity of the motor shell 1 to the heat dissipation port 11 to the outside of the motor shell 1 is formed conveniently; after the direct-current permanent magnet motor is stopped, the lateral displacement of the connecting part 51 is restored, so that the plugging block 53 is embedded into the corresponding heat dissipation port 11 from outside to inside, the waterproof performance of the motor casing 1 is improved, and as the waste heat of the direct-current permanent magnet motor is gradually dissipated, the inner cavity of the motor casing 1 forms a negative pressure environment, the plugging block 53 is adsorbed to the corresponding heat dissipation port 11, the waterproof performance of the motor casing 1 is further improved, and the motor casing is convenient to wash and clean after being used for part of household appliances.
It should be noted that, when the inner cavity of the motor casing 1 gradually forms a negative pressure environment along with the dissipation of the waste heat; if the direct-current permanent magnet motor is started again in a short time, heat generated by the running of the direct-current permanent magnet motor is superposed with the waste heat which is not dissipated yet, the air in the inner cavity of the motor shell 1 is heated and expanded, so that the inner cavity of the motor shell 1 is restored to a positive pressure environment, the adsorption acting force of the heat dissipation opening 11 on the blocking block 53 is eliminated, and the blocking block 53 is favorable for retreating from the heat dissipation opening 11 again to realize ventilation and heat dissipation; correspondingly, if the direct-current permanent magnet motor is started again after a long time, because the plugging block 53 is matched with the heat dissipation port 11 in an embedding way, the plugging block 53 and the heat dissipation port 11 are not in absolute sealing fit, and under the negative pressure effect of the inner cavity of the motor shell 1, the air leakage phenomenon can be generated between the plugging block 53 and the heat dissipation port 11 after a long time, so that the inner cavity of the motor shell 1 is restored to the normal pressure environment, the direct-current permanent magnet motor is started again after a long time, and the air in the inner cavity of the motor shell 1 is heated and expanded by the heat generated by the running of the direct-current permanent magnet motor, so that the plugging block 53 is favorable for retreating from the heat dissipation port 11 again to realize ventilation and heat dissipation.
In this embodiment, a positioning groove 71 is formed at the junction between the connecting portion 51 and the cover portion 52, and a positioning block 72 engaged with the positioning groove 71 is fixedly disposed on the outer wall of the motor housing 1. When the first vibration isolation and noise reduction module 5 is installed, positioning installation is achieved through the positioning grooves 71 and the positioning blocks 72, so that the plurality of plugging blocks 53 can be aligned and embedded into the corresponding heat dissipation openings 11.
In this embodiment, the plugging assembly 13 specifically includes a plugging head 131, a plugging spring 132, a push ring 133, and a thimble 134; the plugging assembly 13 and the air inlet 12 are provided with a plurality of plugging assemblies and are in one-to-one correspondence, the plugging heads 131 are of spherical structures, the plugging heads 131 are embedded in the air inlet 12 from outside to inside, two ends of the plugging springs 132 are respectively connected with the plugging heads 131 and the inner wall of the air inlet 12, so that the plugging heads 131 always have a trend of being embedded in the air inlet 12 from outside to inside, the push rings 133 are of annular structures, the push rings 133 are slidably sleeved on the rotating shaft 3, the ejector pins 134 are of L-shaped rod structures, and two ends of the ejector pins 134 are respectively connected with the plugging heads 131 and the push rings 133.
When the direct-current permanent magnet motor operates, the plug 131 is pushed by the push ring 133 and the ejector pin 134, so that the plug 131 overcomes the elasticity of the plug spring 132 and exits from the air inlet 12, and the plug assembly 13 can open the air inlet 12 according to requirements; after the direct-current permanent magnet motor stops, the pushing force of the pushing ring 133 and the ejector pins 134 on the blocking head 131 is withdrawn, the blocking head 131 is embedded into the air inlet 12 again from outside to inside under the elastic force of the blocking spring 132, and the blocking assembly 13 can be used for blocking the air inlet 12 according to requirements.
In the present embodiment, the fan cooling module 6 specifically includes a fixed fan 61 and a movable fan 62; wherein, the fixed fan 61 is fixedly arranged at the position of the rotating shaft 3 corresponding to the heat radiation opening 11, a round hole is arranged in the middle of the movable fan 62, and the movable fan 62 is sleeved at the position of the rotating shaft 3 corresponding to the air inlet 12; a sliding transmission structure is arranged between the movable fan 62 and the rotating shaft 3, and the movable fan 62 slides to be abutted against the push ring 133 in the rotating process of the rotating shaft 3.
The sliding transmission structure specifically comprises transmission teeth 63, the transmission teeth 63 are fixedly arranged on the inner wall of the movable fan 62, transmission grooves 64 which are matched with the transmission teeth 63 in a sliding manner are formed in the outer wall of the rotating shaft 3, so that power transmission can be realized between the rotating shaft 3 and the movable fan 62 through the transmission teeth 63 and the transmission grooves 64, and meanwhile, relative sliding can be realized between the rotating shaft 3 and the movable fan 62 through the transmission teeth 63 and the transmission grooves 64, namely sliding and transmission can be realized.
When the direct-current permanent magnet motor operates, the rotating shaft 3 enables the inner cavity of the motor shell 1 to form air flow from the air inlet 12 to the heat radiation port 11 through the fixed fan 61, and the rotating shaft 3 strengthens the air flow from the air inlet 12 to the heat radiation port 11 through the movable fan 62; in the process, the movable fan 62 generates a force opposite to the air flow direction, the movable fan 62 slides relatively to the rotating shaft 3 under the force, so that the movable fan 62 slides to be abutted against the push ring 133, and the push ring 133 and the ejector pin 134 push the blocking head 131, so that the blocking head 131 overcomes the elasticity of the blocking spring 132 to withdraw from the air inlet 12, and the blocking assembly 13 opens the air inlet 12 according to requirements; after the direct-current permanent magnet motor stops, the movable fan 62, the push ring 133 and the ejector pins 134 are reset, and the plugging head 131 is re-embedded into the air inlet 12 from outside to inside under the elastic force of the plugging spring 132, so that the plugging assembly 13 can seal the air inlet 12 according to requirements.
It should be noted that, when the inner cavity of the motor casing 1 gradually forms a negative pressure environment along with the dissipation of the waste heat; if the direct-current permanent magnet motor is started again in a short time, the rotating shaft 3 rotates and drives the movable fan 62 to slide to be abutted against the push ring 133, and as the residual heat in the inner cavity of the motor shell 1 is not completely lost, the pressure of the negative pressure environment is relatively small, so that the blocking head 131 is beneficial to exiting the air inlet 12, and the opening of the air inlet 12 is realized; correspondingly, if the direct-current permanent magnet motor is started again after a long time, because the blocking head 131 is matched with the air inlet 12 in an embedding way, the blocking head 131 and the air inlet 12 are not in absolute sealing fit, and under the negative pressure effect of the inner cavity of the motor shell 1, the air leakage phenomenon can be generated between the blocking head 131 and the air inlet 12 after a long time, so that the inner cavity of the motor shell 1 is restored to the normal pressure environment, the direct-current permanent magnet motor is started again after a long time, the rotating shaft 3 rotates and drives the movable fan 62 to slide to be abutted against the push ring 133, the blocking head 131 is easily withdrawn from the air inlet 12, and the opening of the air inlet 12 is realized.
In this embodiment, a friction reducing assembly 8 is disposed between the push ring 133 and the movable fan 62, the friction reducing assembly 8 specifically includes a first magnetic group 81 and a second magnetic group 82 that repel each other, the first magnetic group 81 includes a plurality of first magnets distributed along the center of the rotating shaft 3 and fixedly disposed on the push ring 133, and the second magnetic group 82 includes a plurality of first magnets distributed along the center of the rotating shaft 3 and fixedly disposed on the movable fan 62.
When the movable fan 62 slides to be abutted against the push ring 133, the first magnetic group 81 and the second magnetic group 82 repel each other, so that the friction force between the movable fan 62 and the push ring 133 is reduced, the abrasion speed between the movable fan 62 and the push ring 133 is slowed down, and the service life of the direct-current permanent magnet motor is prolonged.
The implementation principle is as follows: when the direct-current permanent magnet motor operates, the rotating shaft 3 rotates and outputs under the interaction of the stator 2 and the rotor 4, and the rotating shaft 3 enables the inner cavity of the motor shell 1 to form air flow from the air inlet 12 to the heat dissipation port 11 through the fan cooling module 6; at this time, the air inlet 12 is opened through the plugging assembly 13, and the air flow passes through the heat dissipation opening 11 and then extrudes the opening cover 52 to form an air flow in the direction from the outside of the motor shell 1, the air inlet 12, the inner cavity of the motor shell 1, the heat dissipation opening 11 and the outside of the motor shell 1, and the air flow takes away the heat generated in the running process of the direct-current permanent-magnet motor, so that the working temperature of the direct-current permanent-magnet motor is reduced as much as possible, and the normal running of the direct-current permanent-magnet motor is ensured; and the vibration generated in the running process of the direct-current permanent magnet motor is partially consumed by the first vibration isolation and noise reduction module 5, so that the vibration transmitted to the electric appliance shell 9 is reduced, the noise of the household appliance is reduced, and the requirement of consumers on low noise of the household appliance is met.
The application also discloses a juice extractor.
Referring to fig. 1, 2 and 4, the juice extractor comprises an electrical appliance housing 9 and the direct current permanent magnet motor; wherein, electrical apparatus shell 9 is the juice extractor shell, and electrical apparatus shell 9 inner wall has set firmly second shock insulation noise reduction module 10, and first shock insulation noise reduction module 5 directly sets firmly in second shock insulation noise reduction module 10 inner wall through the sticky mode, and the connecting portion 51 outside is indirectly set firmly in electrical apparatus shell 9 inner wall through the sticky mode promptly.
In the use process of the juicer, the rubber layer 101 of the second vibration isolation and noise reduction module 10 can further partially consume vibration generated in the running process of the direct-current permanent magnet motor, so that the vibration transmitted to the electric appliance shell 9 is reduced, the noise of the household appliance is reduced, and the requirement of consumers on low noise of the juicer is met.
In addition, the juicer is usually required to be washed and cleaned after being used, and the washing and cleaning are facilitated through the waterproof performance of the direct current permanent magnet motor.
In this embodiment, the second vibration isolation and noise reduction module 10 specifically includes a plurality of rubber layers 101 and a plurality of metal layers 102; the rubber layers 101 and the metal layers 102 are arranged in a crossing manner from outside to inside, and the adjacent rubber layers 101 and the metal layers 102 are connected in an adhesive manner.
The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered by the protection scope of this application.
Claims (7)
1. The utility model provides a direct current permanent magnet motor of low noise, includes motor casing (1), sets firmly stator (2) in motor casing (1) inner wall, rotates pivot (3) and rotor (4) set firmly in pivot (3) of wearing to locate motor casing (1), its characterized in that: the motor casing (1) outer wall is fixedly provided with a first vibration isolation and noise reduction module (5), the first vibration isolation and noise reduction module (5) comprises a connecting part (51) and a sealing cover part (52), the connecting part (51) is fixedly arranged on the motor casing (1) outer wall, the connecting part (51) is connected with the electric appliance casing (9) inner wall, the sealing cover part (52) is fixedly arranged on the connecting part (51), and the sealing cover part (52) is attached to the motor casing (1) outer wall; a heat dissipation port (11) is formed in the motor shell (1) at a position corresponding to the sealing cover part (52), an air inlet (12) is formed in one side, far away from the heat dissipation port (11), of the motor shell (1), a plugging component (13) is arranged on the air inlet (12), and a fan cooling module (6) is arranged between the rotating shaft (3) and the position corresponding to the heat dissipation port (11) and the air inlet (12); the plugging assembly (13) comprises a plugging head (131), a plugging spring (132), a push ring (133) and a thimble (134), wherein the plugging head (131) is embedded into the air inlet (12) from outside to inside, two ends of the plugging spring (132) are respectively connected with the plugging head (131) and the inner wall of the air inlet (12), so that the plugging head (131) always has a trend of being embedded into the air inlet (12), the push ring (133) is sleeved on the rotating shaft (3) in a sliding manner, and two ends of the thimble (134) are respectively connected with the plugging head (131) and the push ring (133); the fan cooling module (6) comprises a fixed fan (61) and a movable fan (62), the fixed fan (61) is fixedly arranged at the position of the rotating shaft (3) corresponding to the radiating opening (11), the movable fan (62) is sleeved at the position of the rotating shaft (3) corresponding to the air inlet (12), a sliding transmission structure is arranged between the movable fan (62) and the rotating shaft (3), and in the rotating process of the rotating shaft (3), the movable fan (62) slides to be in butt joint with the push ring (133).
2. A low noise dc permanent magnet machine according to claim 1, wherein: the sealing cover part (52) is fixedly provided with a sealing block (53) at a position corresponding to the heat dissipation opening (11), and the sealing block (53) is embedded into the heat dissipation opening (11) from outside to inside.
3. A low noise dc permanent magnet machine according to claim 2, wherein: the connecting part (51) and the sealing cover part (52) are integrally formed by rubber materials, a positioning groove (71) is formed at the joint of the connecting part (51) and the sealing cover part (52), and a positioning block (72) which is matched with the positioning groove (71) in a clamping manner is fixedly arranged on the outer wall of the motor shell (1).
4. A low noise dc permanent magnet machine according to claim 1, wherein: the sliding transmission structure comprises transmission teeth (63), the transmission teeth (63) are fixedly arranged on the inner wall of the movable fan (62), and a transmission groove (64) which is in sliding fit with the transmission teeth (63) is formed in the outer wall of the rotating shaft (3).
5. A low noise dc permanent magnet machine according to claim 1, wherein: the friction reducing assembly (8) is arranged between the push ring (133) and the movable fan (62), the friction reducing assembly (8) comprises a first magnetic group (81) and a second magnetic group (82) which repel each other, the first magnetic group (81) comprises a plurality of first magnets which are distributed along the center of the rotating shaft (3) and fixedly arranged on the push ring (133), and the second magnetic group (82) comprises a plurality of first magnets which are distributed along the center of the rotating shaft (3) and fixedly arranged on the movable fan (62).
6. A juice extractor comprising an appliance housing (9) and a low noise dc permanent magnet motor according to any of claims 1-5, characterized in that: the electric appliance is characterized in that a second vibration isolation and noise reduction module (10) is fixedly arranged on the inner wall of the electric appliance shell (9), and the first vibration isolation and noise reduction module (5) is fixedly arranged on the inner wall of the second vibration isolation and noise reduction module (10).
7. The juice extractor of claim 6, wherein: the second vibration isolation and noise reduction module (10) comprises a plurality of rubber layers (101) and a plurality of metal layers (102), wherein the rubber layers (101) and the metal layers (102) are arranged in a mutually crossing mode from outside to inside, and the adjacent rubber layers (101) are connected with the metal layers (102).
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| CN202310551885.3A CN116317317B (en) | 2023-05-17 | 2023-05-17 | Low-noise direct-current permanent magnet motor and juicer |
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| CN202310551885.3A CN116317317B (en) | 2023-05-17 | 2023-05-17 | Low-noise direct-current permanent magnet motor and juicer |
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| CN116317317B true CN116317317B (en) | 2023-07-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339250A (en) * | 1993-05-28 | 1994-12-06 | Fuji Electric Co Ltd | Cooling equipment for open type electric rotating machine |
| CN202206280U (en) * | 2011-07-01 | 2012-04-25 | 林楚辉 | Permanent-magnetic direct-current motor for juicer, cooking machine and soymilk maker |
| CN107968518A (en) * | 2017-12-21 | 2018-04-27 | 傅皓衍 | A kind of motor with shock-absorbing function |
| CN207677549U (en) * | 2018-01-11 | 2018-07-31 | 天津港孚石油机械制造有限公司 | Electro immersion permanent magnet synchronous motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5237231A (en) * | 1989-10-19 | 1993-08-17 | General Electric Company | Structured product dynamoelectric machine |
| JPH0974717A (en) * | 1995-09-07 | 1997-03-18 | Toyo Electric Mfg Co Ltd | Totally enclosed main induction motor for electric rolling stock |
| CN105027401A (en) * | 2013-02-27 | 2015-11-04 | 麦格纳驱动公司 | Apparatus, systems and methods for reducing noise generated by rotating couplings |
| CN204681196U (en) * | 2015-05-05 | 2015-09-30 | 浙江奇力电机有限公司 | A kind of vibration-damping radiating stable electrical motivation |
| CN108448819A (en) * | 2018-05-31 | 2018-08-24 | 河南泓之泰实业有限公司 | A kind of long-life conical rotor machine being quickly cooled down |
| CN112350487A (en) * | 2020-09-15 | 2021-02-09 | 江苏希来尔机电科技有限公司 | Cooling and noise reducing structure of three-phase asynchronous motor |
-
2023
- 2023-05-17 CN CN202310551885.3A patent/CN116317317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339250A (en) * | 1993-05-28 | 1994-12-06 | Fuji Electric Co Ltd | Cooling equipment for open type electric rotating machine |
| CN202206280U (en) * | 2011-07-01 | 2012-04-25 | 林楚辉 | Permanent-magnetic direct-current motor for juicer, cooking machine and soymilk maker |
| CN107968518A (en) * | 2017-12-21 | 2018-04-27 | 傅皓衍 | A kind of motor with shock-absorbing function |
| CN207677549U (en) * | 2018-01-11 | 2018-07-31 | 天津港孚石油机械制造有限公司 | Electro immersion permanent magnet synchronous motor |
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| CN116317317A (en) | 2023-06-23 |
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