CN115208116B - Plastic package direct current brushless motor for clothes dryer - Google Patents
Plastic package direct current brushless motor for clothes dryer Download PDFInfo
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- CN115208116B CN115208116B CN202211114020.2A CN202211114020A CN115208116B CN 115208116 B CN115208116 B CN 115208116B CN 202211114020 A CN202211114020 A CN 202211114020A CN 115208116 B CN115208116 B CN 115208116B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 241000883990 Flabellum Species 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009423 ventilation Methods 0.000 abstract description 5
- 239000000498 cooling water Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 9
- 230000002146 bilateral effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a plastic package direct current brushless motor for a clothes dryer, which belongs to the technical field of brushless motors and comprises a shell, wherein the upper end surface and the lower end surface of the shell are rotatably connected with an output shaft through a bearing; the heat dissipation mechanism includes the water drum of terminal surface under the shell, the output shaft lower extreme runs through to water drum below, and the output shaft passes through sealed bearing and water drum about both ends face rotate to be connected, the inside sliding connection of water drum has first piston, and first piston is connected with output shaft screw drive, water drum up end intercommunication has the water pipe that passes the shell inside, can realize cooling the stator of motor, simultaneously to the inside ventilation cooling that carries on of shell, still improve the inside and external heat exchange efficiency of shell through the pivoted flabellum in addition, in order to improve the radiating effect to the motor.
Description
Technical Field
The invention relates to the technical field of brushless motors, in particular to a plastic package direct-current brushless motor for a clothes dryer.
Background
Compared with a brush motor, the brushless motor has the characteristics of simple structure, small volume, high efficiency, long service life and the like, and is widely applied to various industry fields, particularly the electric tool industry at present. As a household appliance with high use frequency, a clothes dryer is provided, and most of driving elements of the clothes dryer are plastic package brushless direct current motors. The existing plastic package brushless DC motor is not provided with an air inlet and an air outlet, so that the heat inside the motor cannot be rapidly discharged in the working process, and the wire group is easily damaged due to overhigh temperature.
The prior patent discloses a heat dissipation structure of a brushless motor and the brushless motor (publication number: CN 212784922U). A technical scheme is provided, heat dissipation holes are formed in a front insulation baffle and a rear insulation baffle, so that a semi-closed space enclosed by the conventional brushless motor structure is increased in communication channels with the outside, and heat generated by rotation of a rotor in the working process of the brushless motor is rapidly discharged from the heat dissipation holes.
Above-mentioned application only encloses synthetic semi-closed space and external intercommunication passageway quantity through increasing the brushless motor structure, and this kind of radiating mode can increase the heat dissipation capacity, but the inside heat exchange efficiency with external environment of motor is still less to lead to the radiating effect not good enough, still can influence the life of motor in the long term.
Disclosure of Invention
1. Technical problem to be solved
The plastic package direct current brushless motor for the clothes dryer aims to solve the problems in the prior art, can cool a stator of the motor, ventilate and radiate the inside of the shell, and improves the heat exchange efficiency between the inside of the shell and the outside through the rotating fan blades so as to improve the radiating effect of the motor.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A plastic package direct current brushless motor for a clothes dryer comprises a shell, wherein the upper end surface and the lower end surface of the shell are rotatably connected with an output shaft through bearings, a stator is fixedly connected to the inner side surface of the shell, a rotor is fixedly connected to the annular outer surface of the output shaft, which is positioned at the inner side of the stator, and a heat dissipation mechanism is arranged below the shell;
the heat dissipation mechanism comprises a water barrel fixedly connected to the lower end face of the shell, the lower end of the output shaft penetrates through the lower portion of the water barrel, the output shaft is connected with the upper end face and the lower end face of the water barrel through a sealing bearing in a rotating mode, a first piston is connected inside the water barrel in a sliding mode and is connected with the output shaft in a spiral transmission mode, and the upper end face of the water barrel is communicated with a water pipe penetrating through the inside of the shell.
Furthermore, a plurality of groups of metal radiating fins with circular ring structures are fixedly connected to the outer surface of the outer shell in a vertical equidistant mode.
Furthermore, six water pipes are distributed along the upper end face of the water cylinder in the radial direction at equal intervals, one end of each water pipe is communicated with the upper end face of each water pipe, and the other end of each water pipe sequentially penetrates through the stator and the metal radiating fins inside the shell and then is communicated with the lower end face of the water cylinder.
Furthermore, the part that six water pipes are located the water drum below is fixed connection inflator jointly, and the output shaft lower extreme runs through to under the inflator, and the output shaft passes through sealed bearing and inflator about both ends face rotate to be connected, the inside sliding connection of inflator has the second piston, the second piston is connected with output shaft screw drive.
Furthermore, six gas pipes are communicated with the upper surface of the gas cylinder along the radial direction at equal intervals, the gas pipes sequentially penetrate through the position of the lower end face of the uppermost metal radiating fin, the central angle between each gas pipe and the adjacent water pipe is 30 degrees, a plurality of branch pipes are communicated with one side of each gas pipe close to the shell at a vertical equal interval, and one ends, far away from the gas pipes, of the branch pipes penetrate through the positions of the inner walls of the wire grooves between the two winding posts on the inner side of the stator.
Furthermore, the upper end surface of the shell is provided with air holes, the annular outer side surface of the air cylinder is provided with a first air hole close to the upper end position, and the annular outer side surface of the air cylinder is provided with a second air hole close to the lower end position.
Furthermore, a top plate is arranged above the shell, a bottom plate is arranged below the inflator, the upper end of the output shaft is rotatably connected with the center of the upper end face of the top plate through a bearing, and the lower end of the output shaft is rotatably connected with the center of the upper end face of the bottom plate through a bearing.
Furthermore, six sleeves are fixedly connected to the positions, close to the outer edge, of the lower end face of the top plate and the positions, close to the outer edge, of the upper end face of the bottom plate at equal intervals along the radial direction, and supporting columns are inserted in the sleeves.
Furthermore, the equal fixedly connected with spring of top surface in the upper side sleeve, the symmetrical fixedly connected with spring of bottom surface in the lower side sleeve, the pillar is located the inside up end of upper side sleeve and upper side spring lower extreme fixed connection, and the pillar is located the inside lower terminal surface of lower side sleeve and lower side spring up end fixed connection.
Furthermore, six frame plates are fixedly connected to the outer annular surface of the output shaft close to the lower end face of the top plate at equal intervals along the radial direction, six frame plates are also fixedly connected to the outer annular surface of the output shaft close to the lower end face of the bottom plate at equal intervals along the radial direction, a rotating shaft is rotatably connected between the two frame plates in the vertical direction, and fan blades are symmetrically and fixedly connected to the outer annular surface of the rotating shaft.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the rotatory in-process of this scheme output shaft can drive first piston round trip movement from top to bottom in the water drum to the cooling water that drives in the water drum makes a round trip to flow in the water pipe, thereby takes away the inside heat of stator.
2. The second piston can be driven to move up and down in the air cylinder in the rotating process of the output shaft, so that external air is intermittently input into the shell, and ventilation and heat dissipation are performed on the interior of the shell.
3. The rotatory in-process of this scheme output shaft can drive the frame plate rotatory to make the pivot take place the rotation under the effect of centrifugal force, and then drive the flabellum rotatory, the rotatory flabellum can accelerate the heat exchange efficiency of shell inside and external environment, thereby improves the radiating effect.
4. The scheme is characterized in that sleeves are arranged on the lower end face of the top plate and the upper end face of the bottom plate, the supporting columns are inserted in the sleeves in a sliding mode, and springs are fixedly connected to the two ends of the supporting columns, so that the whole motor is damped.
Drawings
FIG. 1 is a first perspective view of the overall construction of the present invention;
FIG. 2 is a second perspective view of the overall construction of the present invention;
FIG. 3 is a schematic view showing the positional relationship between the water pipe and the stator according to the present invention;
FIG. 4 is a schematic view showing the positional relationship between the branch pipes and the stator according to the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a front view of the present invention;
FIG. 7 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5 in accordance with the present invention;
FIG. 8 is a cross-sectional view taken at B-B of FIG. 6 in accordance with the present invention.
The reference numbers in the figures illustrate:
1. a housing; 11. a rotor; 12. a stator; 13. an output shaft; 14. a top plate; 15. a sleeve; 16. a support post; 17. a base plate; 18. a spring; 2. a water cylinder; 21. a first piston; 22. a water pipe; 23. a metal heat sink; 3. an air cylinder; 31. a second piston; 32. a first air hole; 33. a second air hole; 34. a gas delivery pipe; 35. a branch pipe; 36. air holes are formed; 4. a frame plate; 41. a rotating shaft; 42. and fan blades.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example 1:
referring to fig. 1-8, a plastic-encapsulated brushless dc motor for a clothes dryer comprises a housing 1, wherein the upper and lower end surfaces of the housing 1 are rotatably connected with an output shaft 13 through a bearing, the inner side surface of the housing 1 is fixedly connected with a stator 12, the output shaft 13 is fixedly connected with a rotor 11 on the annular outer surface of the inner side of the stator 12, and a heat dissipation mechanism is arranged below the housing 1; the heat dissipation mechanism includes water section of thick bamboo 2 of fixed connection terminal surface under the shell 1, output shaft 13 lower extreme runs through to water section of thick bamboo 2 below, and output shaft 13 rotates with water section of thick bamboo 2 upper and lower both ends face through sealed bearing and is connected, 2 inside sliding connection of water section of thick bamboo have first piston 21, and first piston 21 is connected with output shaft 13 screw drive, 2 up end intercommunication of water section of thick bamboo have the water pipe 22 that passes the shell 1 inside, the vertical equidistance fixedly connected with a plurality of groups ring shaped structure's of the vertical equidistance metallic cooling fin 23 of shell 1 annular surface, water pipe 22 distributes along 2 up end radial equidistance of water section of thick bamboo to six, the one end of water pipe 22 all communicates with water pipe 22 up end, and the water pipe 22 other end runs through in proper order behind 1 inside stator 12 of shell and the metallic cooling fin 23 with water section of thick bamboo 2 down end intercommunication.
When the above scheme is implemented, the power is switched on for the motor, thereby the output shaft 13 is rotated, the output shaft 13 is arranged on the annular outer surface inside the water cylinder 2 and is provided with reciprocating threads, the first piston 21 is in spiral transmission connection with the output shaft 13, and two limit blocks are fixedly connected to the left side and the right side of the annular outer side surface of the first piston 21 in a bilateral symmetry manner, a sliding chute for sliding the limit blocks is formed in the inner wall of the water cylinder 2, so that when the output shaft 13 is rotated, the first piston 21 can move back and forth up and down along the output shaft 13, when the first piston 21 moves up, the cooling water in the water cylinder 2 is pressed into the water pipe 22 by the cooling water, because one end of the water pipe 22 is communicated with the upper end surface of the water pipe 22, and the other end of the water pipe 22 sequentially penetrates through the stator 12 inside the shell 1 and the metal cooling fins 23 and then is communicated with the lower end surface of the water cylinder 2, so that the cooling water flowing out from the upper end of the water cylinder 2 flows back and forth through the lower end of the water cylinder 2, then flows back and forth through the water cylinder 2, then the first piston 21 moves down, at this time, the cooling water pipe 22 can absorb heat of the cooling water pipe 22, thereby the cooling water pipe can reduce the heat absorbed by the cooling water pipe 22, and the cooling water flowing back and heat absorbed by the cooling water pipe 22, thereby the cooling water pipe, and heat of the cooling water pipe 22, and the cooling water pipe can reduce the heat of the cooling water pipe.
As an embodiment of the present invention, referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 7, the parts of the six water pipes 22 located below the water cylinder 2 are fixedly connected to the air cylinder 3 together, the lower end of the output shaft 13 penetrates below the air cylinder 3, the output shaft 13 is rotatably connected to the upper and lower end surfaces of the air cylinder 3 through sealed bearings, the air cylinder 3 is connected to a second piston 31 in a sliding manner, the second piston 31 is in spiral transmission connection with the output shaft 13, the upper surface of the air cylinder 3 is communicated with six air pipes 34 at equal intervals along the radial direction, the air pipes 34 sequentially penetrate to the position of the lower end surface of the uppermost metal cooling fin 23, the central angle between the air pipe 34 and the adjacent water pipe 22 is 30 °, one side of the air pipe 34 close to the outer shell 1 is vertically communicated with a plurality of branch pipes 35 at equal intervals, one end of the branch pipe 35 far away from the air pipe 34 penetrates to the position of the inner wall of the slot between the two winding posts inside the stator 12, the upper end surface of the outer shell 1 is provided with an air hole 36, the annular outer side surface of the air cylinder 3 is provided with a first air hole 32 close to the upper end, and the annular outer side surface of the air cylinder 3 is provided with a second air hole 33 close to the lower end position of the lower end.
When the above scheme is implemented, the circular outer surface of the output shaft 13 inside the gas cylinder 3 is provided with a reciprocating screw thread, the second piston 31 is in spiral transmission connection with the output shaft 13, the two limit blocks are fixedly connected to the left and right sides of the circular outer side surface of the second piston 31 symmetrically, the inner wall of the gas cylinder 3 is provided with a sliding chute for the limit blocks to slide, so that the second piston 31 can reciprocate up and down along the output shaft 13, when the second piston 31 moves upwards, the one-way valve in the first air hole 32 is closed, the one-way valve in the second air hole 33 is opened, the one-way valve at the position where the gas pipe 34 is communicated with the gas cylinder 3 is opened, so that the gas in the gas cylinder 3 is pressed into the gas pipe 34, and then the gas is respectively blown into the shell 1 through the branch pipe 35, so that the hot gas generated in the shell 1 is discharged through the vent holes 36 on the upper end surface of the shell 1, and then play the role of ventilation and heat dissipation, when the second piston 31 moves downwards, the check valve in the first air hole 32 is opened, the check valve in the second air hole 33 is opened, the check valve at the position where the air pipe 34 is communicated with the air cylinder 3 is closed, so that the outside air enters the air cylinder through the first air hole 32, then the second piston 31 rises again to press the air in the air cylinder 3 into the housing 1, it is ensured that the air entering the interior of the housing 1 is always the air with relatively low temperature in the outside, and further the ventilation and heat dissipation of the housing 1 are ensured, a filter screen is connected in the first air hole 32 through a thread, so that the dust in the air can be prevented from entering the interior of the housing 1 to influence the normal operation of the motor, and a dustproof screen is connected in the air hole 36 through a thread to prevent the dust in the air from falling into the interior of the housing 1 to influence the normal operation of the motor.
As an embodiment of the present invention, referring to fig. 1-4, a top plate 14 is disposed above the housing 1, a bottom plate 17 is disposed below the gas cylinder 3, the upper end of the output shaft 13 is rotatably connected to the center of the upper end surface of the top plate 14 through a bearing, the lower end of the output shaft 13 is rotatably connected to the center of the upper end surface of the bottom plate 17 through a bearing, six frame plates 4 are fixedly connected to the annular outer surface of the output shaft 13 near the lower end surface of the top plate 14 at equal intervals along the radial direction, six frame plates 4 are also fixedly connected to the annular outer surface of the output shaft 13 near the lower end surface of the bottom plate 17 at equal intervals along the radial direction, a rotating shaft 41 is rotatably connected between two frame plates 4 in the vertical direction, and fan blades 42 are symmetrically and fixedly connected to the annular outer surface of the rotating shaft 41.
When above-mentioned scheme is implemented, the frame plate 4 synchronous revolution of both sides about output shaft 13 rotatory in-process still drives, because it is connected with pivot 41 to rotate between two frame plates 4 of vertical direction, make pivot 41 take place the rotation under the effect of centrifugal force, thereby it is rotatory to drive flabellum 42 around pivot 41, six sets of flabellum 42 are rotatory around shell 1 simultaneously, thereby make shell 1 around form the air that flows, and then accelerate the inside heat exchange efficiency with external environment of shell 1, thereby further improve the radiating effect, the wind that flabellum 42 produced can dispel the heat to metal cooling fin 23 simultaneously, thereby guarantee that metal cooling fin 23 continuously absorbs the inside heat of shell 1 and the inside cooling water thermal ability of water pipe 22.
As an embodiment of the present invention, referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 7, six sleeves 15 are fixedly connected to the positions of the lower end surface of the top plate 14 close to the outer edge and the positions of the upper end surface of the bottom plate 17 close to the outer edge at equal intervals along the radial direction, struts 16 are inserted into the sleeves 15, springs 18 are fixedly connected to the inner top surfaces of the upper sleeves 15, springs 18 are fixedly connected to the inner bottom surfaces of the lower sleeves 15 symmetrically, the upper end surfaces of the struts 16 located inside the upper sleeves 15 are fixedly connected to the lower ends of the upper springs 18, and the lower end surfaces of the struts 16 located inside the lower sleeves 15 are fixedly connected to the upper end surfaces of the lower springs 18.
When the scheme is implemented, the motor can vibrate in the operation process, six sleeves 15 are fixedly connected with the lower end face of the top plate 14 close to the outer edge position and the upper end face of the bottom plate 17 close to the outer edge position along the radial equal distance, the struts 16 are inserted in the sleeves 15 in a sliding mode, so that the struts 16 can slightly slide up and down in the sleeves 15 on the upper side and the lower side, the springs 18 on the upper side and the lower side are matched for buffering, the vibration force of the motor is reduced, the stable operation of the motor is guaranteed, and six screw holes are formed in the lower end face of the bottom plate 17 close to the outer edge position along the radial equal distance, so that the whole motor is convenient to install and fix.
The working principle is as follows: the motor is powered on, so that the output shaft 13 rotates, reciprocating threads are arranged on the annular outer surface of the output shaft 13, which is positioned inside the water cylinder 2, the first piston 21 is in spiral transmission connection with the output shaft 13, two limiting blocks are fixedly connected to the annular outer side surface of the first piston 21 in a bilateral symmetry manner, and a sliding chute for the limiting blocks to slide is arranged on the inner wall of the water cylinder 2, so that when the output shaft 13 rotates, the first piston 21 can move back and forth up and down along the output shaft 13, when the first piston 21 moves upwards, cooling water in the water cylinder 2 is pressed into the water pipe 22, because one end of the water pipe 22 is communicated with the upper end surface of the water pipe 22, and the other end of the water pipe 22 sequentially penetrates through the stator 12 and the metal cooling fins 23 inside the shell 1 and then is communicated with the lower end surface of the water cylinder 2, so that the cooling water flowing out from the upper end of the water cylinder 2 flows back into the water cylinder 2 again through the lower end of the water cylinder 2, then the first piston 21 moves downwards, at the moment, the cooling water in the water cylinder 2 flows out from the lower end of the water cylinder 2 and then flows back into the water cylinder 2 through the upper end of the water cylinder 2, so repeatedly that the cooling water pipe 22 absorbs heat of the cooling water pipe, and the cooling water pipe 22, thereby the cooling water pipe 22 absorbs heat of the cooling water pipe, and the cooling water pipe, the cooling water pipe 22 can reduce the heat of the motor, and the cooling water pipe 23, and the heat of the motor, and the motor, thereby reducing effect of the motor, and the cooling water pipe 23, and the heat of the motor is reduced heat of the motor;
reciprocating screw threads are arranged on the annular outer surface of the output shaft 13 positioned in the inflator 3, the second piston 31 is in spiral transmission connection with the output shaft 13, two limit blocks are fixedly connected to the annular outer side surface of the second piston 31 in a bilateral symmetry manner, slide grooves for the limit blocks to slide are arranged on the inner wall of the inflator 3, so that the second piston 31 can reciprocate up and down along the output shaft 13, when the second piston 31 moves upwards, the one-way valve in the first air hole 32 is closed, the one-way valve in the second air hole 33 is opened, the one-way valve at the position where the air pipe 34 is communicated with the inflator 3 is opened, so that the air in the inflator 3 is pressed into the air pipe 34, the air is respectively blown into the shell 1 through the branch pipes 35, and the hot air generated in the shell 1 is discharged through the air holes 36 on the upper end surface of the shell 1, when the second piston 31 moves downwards, the one-way valve in the first air hole 32 is opened, the one-way valve in the second air hole 33 is opened, the one-way valve at the position where the air conveying pipe 34 is communicated with the air cylinder 3 is closed, so that outside air enters the air cylinder through the first air hole 32, then the second piston 31 rises again to press the air in the air cylinder 3 into the shell 1, the air entering the shell 1 is ensured to be air with relatively low temperature outside all the time, ventilation and heat dissipation of the shell 1 are further ensured, and a filter screen is connected in the first air hole 32 through threads, so that dust in the air can be prevented from entering the shell 1 to influence the normal operation of the motor;
the frame plates 4 on the upper side and the lower side are driven to synchronously rotate in the rotation process of the output shaft 13, the rotating shaft 41 is rotatably connected between the two frame plates 4 in the vertical direction, so that the rotating shaft 41 rotates under the action of centrifugal force, the fan blades 42 are driven to rotate around the rotating shaft 41, and meanwhile, the six groups of fan blades 42 rotate around the shell 1, so that flowing air is formed around the shell 1, the heat exchange efficiency between the inside of the shell 1 and the external environment is accelerated, the heat dissipation effect is further improved, meanwhile, the metal radiating fins 23 can be radiated by wind generated by the fan blades 42, and the capability of the metal radiating fins 23 for continuously absorbing the heat in the shell 1 and the heat of cooling water in the water pipe 22 is ensured;
because the motor can produce vibrations in the operation process, through all being close to outer edge position at roof 14 lower terminal surface and bottom plate 17 upper end surface and being close to outer edge position and all having six sleeves 15 along radial equidistance fixedly connected with, slide in the sleeve 15 and peg graft and have pillar 16 to make pillar 16 can carry out slight upper and lower slip in the sleeve 15 of upper and lower both sides, cooperate the spring 18 of upper and lower both sides again to cushion, thereby reduce the shaking force of motor, guarantee the steady operation of motor.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by the equivalent or modified embodiments and the modified concepts of the present invention.
Claims (3)
1. The utility model provides a clothes dryer is with plastic envelope brushless DC motor, includes shell (1), its characterized in that: the upper end face and the lower end face of the shell (1) are rotatably connected with an output shaft (13) through bearings, a stator (12) is fixedly connected to the inner side face of the shell (1), a rotor (11) is fixedly connected to the annular outer surface of the output shaft (13) located at the inner side of the stator (12), and a heat dissipation mechanism is arranged below the shell (1);
the heat dissipation mechanism comprises a water cylinder (2) fixedly connected to the lower end face of the shell (1), the lower end of the output shaft (13) penetrates below the water cylinder (2), the output shaft (13) is rotatably connected with the upper end face and the lower end face of the water cylinder (2) through a sealing bearing, a first piston (21) is connected inside the water cylinder (2) in a sliding mode, the first piston (21) is in spiral transmission connection with the output shaft (13), and a water pipe (22) penetrating through the interior of the shell (1) is communicated with the upper end face of the water cylinder (2);
the six water pipes (22) are located below the water cylinder (2) and are fixedly connected with the air cylinder (3) together, the lower end of the output shaft (13) penetrates through the air cylinder (3), the output shaft (13) is rotationally connected with the upper end face and the lower end face of the air cylinder (3) through a sealing bearing, a second piston (31) is slidably connected into the air cylinder (3), and the second piston (31) is in spiral transmission connection with the output shaft (13);
six air conveying pipes (34) are communicated with the upper surface of the air cylinder (3) along the radial direction at equal intervals, the air conveying pipes (34) sequentially penetrate through the position of the lower end face of the uppermost metal radiating fin (23), the central angle between each air conveying pipe (34) and the adjacent water pipe (22) is 30 degrees, a plurality of branch pipes (35) are communicated with one side, close to the shell (1), of each air conveying pipe (34) at a vertical equal interval, and one ends, far away from the air conveying pipes (34), of the branch pipes (35) penetrate through the position of the inner wall of a wire groove between two winding posts on the inner side of the stator (12);
the upper end surface of the shell (1) is provided with air holes (36), the annular outer side surface of the inflator (3) is provided with a first air hole (32) close to the upper end, and the annular outer side surface of the inflator (3) is provided with a second air hole (33) close to the lower end;
a top plate (14) is arranged above the shell (1), a bottom plate (17) is arranged below the air cylinder (3), the upper end of the output shaft (13) is rotatably connected with the central position of the upper end face of the top plate (14) through a bearing, and the lower end of the output shaft (13) is rotatably connected with the central position of the upper end face of the bottom plate (17) through a bearing;
six sleeves (15) are fixedly connected to the lower end face of the top plate (14) close to the outer edge and the upper end face of the bottom plate (17) close to the outer edge at equal intervals along the radial direction, and supporting columns (16) are inserted into the sleeves (15);
the springs (18) are fixedly connected to the inner top surfaces of the upper sleeves (15), the springs (18) are symmetrically and fixedly connected to the inner bottom surfaces of the lower sleeves (15), the upper end surface, located inside the upper sleeve (15), of the strut (16) is fixedly connected with the lower end of the upper spring (18), and the lower end surface, located inside the lower sleeve (15), of the strut (16) is fixedly connected with the upper end surface of the lower spring (18);
be close to along six frame plate (4) of radial equidistance fixedly connected with on output shaft (13) the annular surface of terminal surface position under roof (14), be close to also along six frame plate (4) of radial equidistance fixedly connected with on output shaft (13) the annular surface of terminal surface position under bottom plate (17), vertical direction is two rotate between frame plate (4) and be connected with pivot (41), symmetry fixedly connected with flabellum (42) on pivot (41) the annular surface.
2. The plastic-encapsulated DC brushless motor for the clothes dryer according to claim 1, characterized in that: the outer surface of the outer shell (1) is vertically and equidistantly fixedly connected with a plurality of groups of metal radiating fins (23) with circular ring structures.
3. The plastic-encapsulated brushless direct-current motor for the clothes dryer according to claim 2, characterized in that: water pipe (22) have six along water section of thick bamboo (2) up end radial equidistance distribution, the one end of water pipe (22) all with water pipe (22) up end intercommunication, and water pipe (22) other end run through in proper order behind stator (12) and the metal fin (23) of shell (1) inside with water section of thick bamboo (2) terminal surface intercommunication down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211114020.2A CN115208116B (en) | 2022-09-14 | 2022-09-14 | Plastic package direct current brushless motor for clothes dryer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211114020.2A CN115208116B (en) | 2022-09-14 | 2022-09-14 | Plastic package direct current brushless motor for clothes dryer |
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| Publication Number | Publication Date |
|---|---|
| CN115208116A CN115208116A (en) | 2022-10-18 |
| CN115208116B true CN115208116B (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211114020.2A Active CN115208116B (en) | 2022-09-14 | 2022-09-14 | Plastic package direct current brushless motor for clothes dryer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116404810B (en) * | 2023-02-20 | 2024-01-12 | 深圳艾史比特电机有限公司 | Permanent magnet brushless motor structure and method based on water pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110535282A (en) * | 2019-10-17 | 2019-12-03 | 山东博发智能科技有限公司 | A kind of electric motor temperature reduction damping |
| CN210898826U (en) * | 2020-01-14 | 2020-06-30 | 深圳市富信泰科技有限公司 | Brushless motor convenient to heat dissipation |
| CN213484646U (en) * | 2020-11-27 | 2021-06-18 | 无锡市双杰模塑有限公司 | Novel heat dissipation shell body for direct current brushless motor |
| CN215072022U (en) * | 2021-03-31 | 2021-12-07 | 常州固特电机科技有限公司 | Brushless motor with radiating assembly |
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Denomination of invention: A plastic sealed DC brushless motor for dryers Effective date of registration: 20231207 Granted publication date: 20221125 Pledgee: Jingjiang Branch of Bank of China Ltd. Pledgor: JIANGSU HUANSHENG MOTOR CO.,LTD. Registration number: Y2023980069663 |