CN211701762U - BLDC integral type motor that clothes dryer was used - Google Patents

BLDC integral type motor that clothes dryer was used Download PDF

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Publication number
CN211701762U
CN211701762U CN202020529207.9U CN202020529207U CN211701762U CN 211701762 U CN211701762 U CN 211701762U CN 202020529207 U CN202020529207 U CN 202020529207U CN 211701762 U CN211701762 U CN 211701762U
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CN
China
Prior art keywords
bldc
stator
bottom plate
driver module
rear end
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Application number
CN202020529207.9U
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Chinese (zh)
Inventor
江林飞
孙豪远
汪旭亮
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Zhejiang Yongchang Electric Corp
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Zhejiang Yongchang Electric Corp
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Priority to CN202020529207.9U priority Critical patent/CN211701762U/en
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Publication of CN211701762U publication Critical patent/CN211701762U/en
Priority to PCT/CN2020/135643 priority patent/WO2021208465A1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/02—Casings or enclosures characterised by the material thereof
    • 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
    • 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
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

The utility model discloses a BLDC integral type motor that clothes dryer was used, including stator, rotor, front end housing, rear end cap and pivot, front end housing, rotor, rear end cap, bottom plate and shell are passed in proper order in the pivot, the rotor includes the permanent magnet, the stator is equipped with in the outside of rotor, rear end cap outside mounting plate, be equipped with the driver module on the bottom plate, cover the driver module with the shell and be in the same place through bolt and bottom plate, rear end cap are fixed. The utility model has the advantages that this BLDC motor adopts drive and integrative all-in-one of motor to pass through installation driver module on the bottom plate promptly, and the driver module is covered to the reuse shell, no longer need unpack the rear end cap of motor apart like this when the maintenance, only need dismantle the shell, then maintain driver module on the bottom plate, if driver module damages can directly dismantle the bottom plate seriously, install a new bottom plate that has driver module and shell again, easy maintenance, swift like this.

Description

BLDC integral type motor that clothes dryer was used
Technical Field
The utility model belongs to the technical field of the motor, especially, relate to a BLDC integral type motor that clothes dryer was used.
Background
Some current clothes dryers use induction motors or BLDC motors, i.e. brushless dc motors, which overcome the congenital drawbacks of brushed dc motors, replacing mechanical commutators with electronic commutators, the magnetic field generated by the stator having the same frequency as the magnetic field generated by the rotor. However, the driving control part of the BLDC motor is installed inside the rear end cap, and the driving control part is easily damaged due to many electronic components, and the driving control part needs to be repaired after the rear end cap is disassembled, so that the repair is inconvenient, and the driving control part is damaged and often needs to be replaced as a whole.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve the drive control part of BLDC motor and install in the inside of rear end cover, the inconvenient problem of follow-up maintenance provides a BLDC integral type motor that clothes dryer was used.
The utility model adopts the technical scheme as follows:
the utility model provides a BLDC integral type motor that clothes dryer was used, includes stator, rotor, front end housing, rear end cap and pivot, front end housing, rotor, rear end cap, bottom plate and shell are passed in proper order in the pivot, the rotor includes the permanent magnet, the stator is equipped with in the outside of rotor, rear end cap outside mounting plate, be equipped with the driver module on the bottom plate, cover the driver module with the shell and be in the same place through bolt and bottom plate, rear end cap are fixed. This BLDC motor passes through installation driver module on the bottom plate, and the driver module is covered to the reuse shell, no longer need take apart the rear end cap of motor like this when the maintenance, only need dismantle the shell, then maintain the driver module on the bottom plate, if the driver module damages seriously can directly dismantle the bottom plate, install a new bottom plate that has driver module and shell again, easy maintenance like this, swift.
Further, the stator includes stator core, stator core includes the circular structure that stator punching sheet orthobar shape punching press formed, stator core comprises a plurality of iron core branches, the left side of iron core branch is equipped with a convex circle, and the right side of iron core branch is equipped with a spill circle, and convex circle and spill circle are connected. At present, in the prior art, most of stator punching sheets adopt fan-shaped stator punching sheets, the material utilization rate is only 36%, 12 stator punching sheet grooves are punched on one silicon steel sheet by adopting linear strip-shaped punching, and the stator punching sheet grooves are overlapped and then bent to be round after punching, so that the material utilization rate can be improved to 67%.
Furthermore, the heat dissipation block on the driver module is fixed through heat conduction glue and fixed by covering the heat dissipation block through the shell. The thermally conductive glue has two functions here: firstly, the adhesive is sticky and sticks to the radiating block; and the second is heat conduction. The shell can also support the radiating block to prevent the radiating block from shifting.
Further, the bottom plate and the outer shell are both circular shells made of plastic. The circular shell improves the space utilization rate, and the vent and the plug-in groove are required to be arranged on the shell, so that the plastic molding process is simple and convenient. Plastic is not conductive, which would lead to a risk of electrical leakage if it were made of aluminum, and the insertion of the insert into the insert pocket requires a safety distance of 6mm in the aluminum condition, whereas the aluminum housing often requires glue filling, after which the safety distance of 6mm cannot be guaranteed, so that the base plate and the housing are made of plastic here.
Furthermore, a plurality of triangular grooves are formed in the peripheries of the base plate and the shell, hollow triangular columns are arranged in the triangular grooves of the base plate, and solid triangular columns are arranged on the shell corresponding to the hollow triangular columns. When the shell is installed, the solid triangular columns of the shell are inserted into the hollow triangular columns on the bottom plate to position and fix the shell.
Furthermore, the rear end cover, the front end cover and the stator are connected through clamping grooves, and the rear end cover and the front end cover are fixed through bolts. The diameters of the joints of the rear end cover and the front end cover with the stator are larger than the diameters of the joints of the stator, so that the stator can be clamped into the front end cover and the rear end cover.
Furthermore, a plurality of ventilation openings are formed in the front end cover, the rear end cover and the shell. The vent is favorable for heat dissipation of the motor body and the driver module.
Further, the side of the shell is provided with an insert groove. The plug-in groove is used for plugging in the plug-in.
Further, the magnetic pole end of the stator core is provided with an anti-drop structure, and the anti-drop structure is U-shaped. When the motor is installed, the coil is wound on the stator core, and the anti-falling structure can prevent the coil from falling off.
The utility model discloses following beneficial effect has: the BLDC motor adopts an integrated machine integrating a drive and a motor, namely, a driver module is installed on a bottom plate, and then a shell covers the driver module, so that a rear end cover of the motor does not need to be disassembled when in maintenance, only the shell needs to be disassembled, then the driver module is maintained on the bottom plate, if the driver module is seriously damaged, the bottom plate can be directly disassembled, and a new bottom plate with the driver module and the shell is installed, so that the maintenance is convenient and quick; the stator punching sheet adopts the process of punching in a linear strip shape, then winding and then rounding, so that the material utilization rate can be improved to 67 percent from 36 percent of the fan-shaped stator punching sheet; the radiating block on the driver module is fixed through the heat-conducting glue and is fixed by covering the radiating block through the shell.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the present invention with the outer shell removed;
FIG. 3 is a bottom view;
FIG. 4 is a schematic view of a stator structure;
fig. 5 is a schematic structural view of a stator punching sheet.
In the figure, 1 is a rotating shaft, 2 is a hollow triangular column, 3 is a shell, 4 is a front end cover, 5 is a stator, 6 is a rear end cover, 7 is a bottom plate, 8 is an anti-falling structure, 9 is a driver module, 10 is a solid triangular column, 11 is a heat dissipation block, 12 is a rotor, 13 is a clamping groove, 14 is a ventilation opening, 15 is an insertion groove, 16 is a stator tooth pole, and 17 is a stator iron core.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example (b): as shown in fig. 1 to 5, a BLDC integrated motor for a clothes dryer includes a stator 5, a rotor 12, a front end cover 4, a rear end cover 6 and a rotating shaft 1, the rotating shaft 1 sequentially passes through the front end cover 4, the rotor 12, the rear end cover 6, a bottom plate 7 and a housing 3, the rotor 12 includes a permanent magnet, the stator 5 is installed outside the rotor 12, the bottom plate 7 is installed outside the rear end cover 6, a driver module 9 is arranged on the bottom plate 7, and the driver module 9 is covered by the housing 3 and fixed with the bottom plate 7 and the rear end cover 6 through bolts. This BLDC motor adopts drive and integrative all-in-one of motor to install driver module 9 promptly through on bottom plate 7, reuse shell 3 covers driver module 9, no longer need take apart the rear end cap 6 of motor like this when the maintenance, only need dismantle shell 3, then maintain driver module 9 on bottom plate 7, if driver module 9 damages seriously can directly dismantle bottom plate 7, install a new bottom plate 7 that has driver module 9 and shell 3 again, easy maintenance like this, it is swift.
Stator 5 includes stator core 17, stator core 17 includes the circular structure that stator punching sheet orthobar shape punching press formed, stator core 17 comprises a plurality of iron core branches, the left side of iron core branch is equipped with a convex circle, and the right side of iron core branch is equipped with a spill circle, and convex circle and spill circle are connected. The single-layer stator iron core sheets are formed by punching the stator punching sheets in a linear strip shape, a plurality of single-layer stator iron core sheets are pressed and overlapped into the stator iron core 17 after punching, then the coil is wound on the stator tooth pole 16, then the strip-shaped stator iron core 17 is bent into a circle, and finally the stator is subjected to injection molding. Most of stator punching sheets in the prior art at present adopt fan-shaped stator punching sheets, the material utilization rate is only 36%, 12 stator punching sheet grooves are punched on one silicon steel sheet by adopting linear strip-shaped punching, and the stator punching sheet grooves are bent and rounded after punching, so that the material utilization rate can be improved to 67%. And a plurality of punched silicon steel sheets are pressed and stacked to form a circle.
The single-layer stator core piece is provided with 12T-shaped iron core subsections, the upper parts of the iron core subsections are arc-shaped, the upper surface between every two iron core subsections is concave, the left side of each iron core subsection is provided with a convex circle, the radius of the convex circle is 0.8mm, the right side of each iron core subsection is provided with a concave circle, the radius of the concave circle is 0.8mm, the convex circle is connected with the concave circle, and the lower part of each convex circle is provided with a transition angle of 30 degrees. The convex and concave circles are connected and the lower part is provided with a transition angle, the upper part of the core sections is arc-shaped, so that the bar-shaped stator core is bent into a circle and the first core section is connected with the last core section.
The heat dissipation block 11 on the driver module 9 is fixed by heat conductive glue, and is fixed by covering the heat dissipation block 11 with the housing 3. The thermally conductive glue has two functions here: firstly, the adhesive is sticky and sticks to the radiating block; and the second is heat conduction. The housing 3 can also bear against the heat sink 11, preventing the heat sink 11 from being displaced.
The base plate 7 and the housing 3 are both circular shells made of plastic. The circular shell improves the space utilization rate, and the vent and the plug-in groove are required to be arranged on the shell 3, so that the plastic molding process is simple and convenient. Plastic is not conductive, which would lead to a risk of electrical leakage if it were made of aluminum, and the insertion of the insert into the insert pocket requires a safety distance of 6mm in the aluminum condition, whereas the aluminum housing often requires glue filling, after which the safety distance of 6mm cannot be guaranteed, so that the base plate and the housing are made of plastic here.
All be equipped with a plurality of triangle recesses around bottom plate 7 and shell 3, be equipped with hollow triangular prism 2 in the triangle recess of bottom plate 7, the position that corresponds hollow triangular prism 2 on the shell 3 is equipped with solid triangular prism 10. When the shell 3 is installed, the solid triangular columns 10 of the shell 3 are inserted into the hollow triangular columns 2 on the bottom plate 7 to position and fix the shell 3. Accurate quick location of shell is realized through pegging graft of hollow triangular prism and solid triangular prism, cancels the screw fixation and improves the installation effectiveness, reduce cost.
The rear end cover 6, the front end cover 4 and the stator 5 are connected through a clamping groove 13, and the rear end cover 6 and the front end cover 4 are fixed through bolts. The diameters of the rear end cover 6 and the joint of the front end cover 4 and the stator 5 are larger than that of the stator 5, namely, the opening and closing positions of the front end cover 4 and the rear end cover 6 are in a step type, so that the stator can be clamped into the front end cover 4 and the rear end cover 6.
The front end cover 4, the rear end cover 6 and the shell 3 are all provided with a plurality of ventilation openings 14. The design of the ventilation opening 14 facilitates heat dissipation of the motor body and the driver module 9.
The side of the housing 3 is provided with an insert groove 15. The card slot 15 is for a card.
The magnetic pole end of the stator core is provided with an anti-drop structure 8, and the anti-drop structure is U-shaped. When the motor is installed, the coil is wound on the stator core, and the anti-falling structure 8 can prevent the coil from falling off.

Claims (9)

1. The utility model provides a BLDC integral type motor that clothes dryer was used, includes stator (5), rotor (12), front end housing (4), rear end cap (6) and pivot (1), its characterized in that, front end housing (4), rotor (12), rear end cap (6), bottom plate (7) and shell (3) are passed in proper order in pivot (1), rotor (12) include the permanent magnet, stator (5) are equipped with in the outside of rotor (12), rear end cap (6) outside mounting plate (7), be equipped with driver module (9) on bottom plate (7), cover driver module (9) and fix together through bolt and bottom plate (7), rear end cap (6) with shell (3).
2. The BLDC integrated motor for a clothes dryer according to claim 1, wherein the stator (5) comprises a stator core (17), the stator core (17) comprises a circular structure formed by punching a linear bar of stator laminations, the stator core (17) is composed of a plurality of core sections, a convex circle is disposed on a left side of each core section, a concave circle is disposed on a right side of each core section, and the convex circle and the concave circle are connected.
3. The BLDC integrated motor for a clothes dryer according to claim 1, wherein the heat radiating block (11) of the driver module (9) is fixed by a heat conductive paste, and is fixed by covering the heat radiating block (11) with the housing (3).
4. A BLDC integrated motor for a clothes dryer according to claim 1, wherein said base plate (7) and said casing (3) are each a circular housing made of plastic.
5. The BLDC integrated motor for the clothes dryer according to claim 1, wherein a plurality of triangular grooves are formed around the base plate (7) and the housing (3), hollow triangular columns (2) are arranged in the triangular grooves of the base plate (7), and solid triangular columns (10) are arranged on the housing (3) corresponding to the hollow triangular columns (2).
6. The BLDC integrated motor for a clothes dryer according to claim 1, wherein the rear cover (6) and the front cover (4) are connected to the stator (5) through a slot (13), and the rear cover (6) and the front cover (4) are fixed by bolts.
7. The BLDC integrated motor for a clothes dryer according to claim 1, wherein a plurality of ventilation openings (14) are formed in the front cover (4), the rear cover (6), and the housing (3).
8. The BLDC integrated motor for a clothes dryer according to claim 1, wherein the side of the housing (3) is provided with an insert groove (15).
9. The BLDC integrated motor for a clothes dryer according to claim 2, wherein the pole end of the stator core (17) is provided with a coming-off preventing structure (8) having a U-shape.
CN202020529207.9U 2020-04-13 2020-04-13 BLDC integral type motor that clothes dryer was used Active CN211701762U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202020529207.9U CN211701762U (en) 2020-04-13 2020-04-13 BLDC integral type motor that clothes dryer was used
PCT/CN2020/135643 WO2021208465A1 (en) 2020-04-13 2020-12-11 Bldc-driver integrated motor for clothes dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020529207.9U CN211701762U (en) 2020-04-13 2020-04-13 BLDC integral type motor that clothes dryer was used

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Publication Number Publication Date
CN211701762U true CN211701762U (en) 2020-10-16

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WO (1) WO2021208465A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021208465A1 (en) * 2020-04-13 2021-10-21 浙江永昌电气股份有限公司 Bldc-driver integrated motor for clothes dryer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114696510B (en) * 2022-04-06 2022-10-04 江苏三江电器集团股份有限公司 Brushless motor for fan of clothes dryer

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JPH05292728A (en) * 1992-04-09 1993-11-05 Daikin Ind Ltd Dc brushless motor
US7352092B2 (en) * 2005-08-22 2008-04-01 Emerson Electric Co. Integrated motor and controller assemblies for horizontal axis washing machines
CN201450435U (en) * 2009-06-23 2010-05-05 佛山市顺德区泛仕达机电有限公司 Heat sink of DC brushless motor
CN202721563U (en) * 2012-08-20 2013-02-06 常州新亚电机有限公司 Motor end cap and controller assembly
CN104617708A (en) * 2015-03-03 2015-05-13 常州东本驱动技术有限公司 Integrated motor controller with high radiating performance
CN211701762U (en) * 2020-04-13 2020-10-16 浙江永昌电气股份有限公司 BLDC integral type motor that clothes dryer was used
CN111404329A (en) * 2020-04-13 2020-07-10 浙江永昌电气股份有限公司 B L DC integral type motor that clothes dryer used

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021208465A1 (en) * 2020-04-13 2021-10-21 浙江永昌电气股份有限公司 Bldc-driver integrated motor for clothes dryer

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