CN111106691A - Motor magnet mounting structure - Google Patents
Motor magnet mounting structure Download PDFInfo
- Publication number
- CN111106691A CN111106691A CN201811249385.XA CN201811249385A CN111106691A CN 111106691 A CN111106691 A CN 111106691A CN 201811249385 A CN201811249385 A CN 201811249385A CN 111106691 A CN111106691 A CN 111106691A
- Authority
- CN
- China
- Prior art keywords
- motor
- outer ring
- magnet
- wall
- caulking groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000005728 strengthening Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a motor magnet mounting structure, which comprises a motor shell, a motor outer ring, a plurality of permanent magnets and a plurality of magnet pressing plates, wherein the motor shell is provided with a plurality of permanent magnets; the circular ring wall of the motor shell is provided with an outer ring combining part and an annular first caulking groove; the motor outer ring is a ring body corresponding to the ring wall, the first end of the motor outer ring is combined with the outer ring combining part, and the second end of the motor outer ring is provided with a second caulking groove which corresponds to the first caulking groove and is annular; the permanent magnets are annularly arranged between the first caulking groove and the second caulking groove, and two corresponding side edges of each permanent magnet are respectively provided with a third caulking groove; the plurality of magnet pressing plates are respectively and correspondingly arranged among the permanent magnets, the side edge of each magnet pressing plate is embedded into the corresponding third caulking groove, and the upper end and the lower end of each magnet pressing plate are respectively embedded into the first caulking groove and the second caulking groove; therefore, the permanent magnet is fixed on the inner wall of the outer ring of the motor in a mechanical structure, and the purposes of avoiding the permanent magnet from degumming and loosening, strengthening the stable assembly structure and facilitating the assembly are achieved.
Description
Technical Field
The present invention relates to a motor structure, and more particularly, to a motor magnet mounting structure for an external rotation motor of a ceiling fan.
Background
The permanent magnets of the outward rotating motor (motor) of the existing ceiling fan are arranged around the inner wall of the outward rotating iron ring of the rotating shell, and are usually adhered to the inner wall of the outward rotating iron ring by means of adhesion in a manner of fixing each permanent magnet on the inner wall of the outward rotating iron ring in correspondence to the exciting coil of the rotor. However, in such an adhesion fixing mode, the problem of degumming and failure easily occurs in a hot motor environment, so that the motor fails to operate; moreover, the assembly working hours of the known adhesive fixing magnet are too long, and the adhesive needs to wait for the curing of the adhesive for a long time, so that the production is not very convenient. Although some techniques do not fix the permanent magnet by using an adhesive method, the permanent magnet may be fixed one by using a fastener, and thus the assembling method is very complicated. Therefore, the present invention is to solve the problem that the permanent magnet of the present external rotor motor (motor) is easily degummed.
Disclosure of Invention
The invention aims to provide a motor magnet mounting structure, which adopts a mechanical combination structure that a motor shell, a motor outer ring and a plurality of magnet pressing plates buckle a plurality of permanent magnets, thereby achieving the purposes of avoiding the permanent magnets from degumming and loosening, strengthening a stable assembly structure and facilitating assembly.
In order to achieve the above object, the present invention provides a motor magnet mounting structure including: the motor shell is provided with an end cover part, a rotating shaft hole arranged in the center of the end cover part and an annular wall surrounding the periphery of the end cover part, one end of the annular wall opposite to the end cover part is provided with a combined end, and the combined end is provided with an annular first caulking groove; the motor outer ring is a ring body corresponding to the annular wall of the motor shell, a first end of the motor outer ring is detachably combined with the combined end of the motor shell, and a second end of the motor outer ring is provided with a second caulking groove which corresponds to the first caulking groove and is annular; a plurality of permanent magnets are annularly arranged between the first caulking groove and the second caulking groove and lean against the inner wall of the outer ring of the motor, and two corresponding side edges of each permanent magnet are respectively provided with a third caulking groove; and a plurality of magnet pressing plates which are respectively and correspondingly arranged among the permanent magnets, wherein two side edges of each magnet pressing plate are respectively and correspondingly embedded into the third caulking grooves of the permanent magnets, one end of each magnet pressing plate is embedded into the first caulking groove of the annular wall, and the other end of each magnet pressing plate is embedded into the second caulking groove of the outer ring of the motor.
In the above-mentioned motor magnet mounting structure, the first caulking groove and the second caulking groove are respectively provided with a chute wall, and each magnet pressing plate is abutted against the chute wall of the first caulking groove and the chute wall of the second caulking groove.
In the above-mentioned motor magnet mounting structure, the periphery of the combined end of the ring wall has an annular outer ring combining part, the inner side of the outer ring combining part has an annular first inner blocking wall, and the space between the first inner blocking wall and the outer ring combining part forms the first caulking groove.
In the above-mentioned motor magnet mounting structure, the outer ring combining portion has a flange protruding the outer side surface of the ring wall, a step groove formed at the outer end of the flange; the first end of the motor outer ring is detachably sleeved in the step groove, and abuts against the flange.
In the above-mentioned motor magnet mounting structure, the flange is provided with a plurality of screw through holes, each screw through hole is penetrated with a screw, and the screw locks the motor outer ring on the flange.
In the above-mentioned motor magnet mounting structure, the end cover portion of the motor housing is a circular cover, and the annular wall is a circular wall integrally formed with the motor housing; the outer ring of the motor is a ring body made of ferromagnetic material.
In the above motor magnet mounting structure, the permanent magnet is a rectangular magnet, and the third caulking grooves on both sides of the permanent magnet extend to the upper and lower ends of the permanent magnet.
The motor magnet mounting structure adopts a mechanical fixing technology, and the upper end and the lower end of each magnet pressing plate are fixed through the first caulking groove of the motor shell and the second caulking groove structure of the motor outer ring, and each magnet pressing plate is correspondingly arranged between the permanent magnets and is embedded into the third caulking groove of the permanent magnets, so that the permanent magnets arranged in a ring shape can be stably assembled on the motor shell, and the problem of degumming possibly caused by the known gluing mode is avoided. Each magnet pressing plate is arranged between two adjacent permanent magnets and is embedded into a third caulking groove on the side edge of each permanent magnet, the magnet pressing plates are made of stainless steel materials preferably, so that the magnet pressing plates have elasticity and rigidity, the permanent magnets protrude outwards from the upper ends and the lower ends of the magnet pressing plates, and the protruding parts of the upper ends and the lower ends of the magnet pressing plates respectively abut against the inclined groove wall of the first caulking groove and the inclined groove wall of the second caulking groove to generate lateral pressure to force each permanent magnet to tightly press and attach to the inner wall of the outer ring of the motor, so that the permanent magnets are prevented from falling off or loosening. The invention has another advantage that all the permanent magnets can be installed by combining the motor shell and the motor outer ring, so that the first caulking groove and the second caulking groove are embedded with the arranged magnet pressing plate in a whole circle, thereby achieving the effect of quick and convenient assembly.
Drawings
The features and advantages of the present invention are described in detail below with reference to the accompanying drawings:
FIG. 1 is a schematic view showing the mounting structure of the motor magnet according to the present invention applied to the ceiling fan motor.
FIG. 2 is an exploded view of the motor magnet mounting structure of the present invention applied to a ceiling fan motor.
Fig. 3 is a perspective sectional view showing an assembled state of a motor magnet mounting structure according to a preferred embodiment of the present invention.
Fig. 4 is a sectional side view showing an assembled state of the motor magnet mounting structure according to the preferred embodiment of the present invention.
Symbolic illustration in the drawings:
100 ceiling fans; 10 a motor housing; 11 an end cap portion; 12 rotating shaft holes; 13 a circular wall; 14 a combination end; 15 a first caulking groove; 151 chute walls; 16 an outer ring engaging portion; 161 a flange; 162-step groove; 163 screw piercing; 164 screws; 17 a first inner abutment wall; 20 a motor outer ring; 21 a second caulking groove; 211 a chute wall; 30 a permanent magnet; 31 a third caulking groove; 40 magnet pressing plates; 41 sides; 42. end 43; 50 rotors.
Detailed Description
The invention is further described with reference to the following figures and specific examples, which are not intended to be limiting.
Referring to fig. 1, the motor of the present invention may be used as an external rotation motor for a ceiling fan 100, and referring to fig. 2, 3 and 4, a preferred embodiment of the present invention includes: a motor housing 10, which is a casing made of metal such as aluminum-based alloy with good heat dissipation, and mainly includes a circular end cover 11, a rotation shaft hole 12 disposed at the center of the end cover 11 for passing through a rotation shaft of a rotor 50, a circular annular wall 13 surrounding the end cover 11, wherein one end of the annular wall 13 opposite to the end cover 11 has a combination end 14, and the combination end 14 has a first annular caulking groove 15; a motor outer ring 20, which is a circular ring body made of ferromagnetic material corresponding to the ring wall 13 of the motor housing 10, and a first end of which is detachably combined with the combining end 14 of the motor housing 10, and a second end of which is provided with a second caulking groove 21 corresponding to the first caulking groove 15 and in a ring shape; a plurality of permanent magnets 30, each of the permanent magnets 30 is preferably implemented as a rectangular magnet, each of the permanent magnets 30 has a third slot 31 on each of two corresponding sides, the third slots 31 on each of the two sides of the permanent magnet 30 extend to the upper and lower ends of the permanent magnet 30, and the plurality of permanent magnets 30 are annularly arranged between the first slot 15 and the second slot 21 and abut against the inner wall of the motor outer ring 20; and a plurality of magnet pressing plates 40 respectively and correspondingly arranged between the permanent magnets 30, wherein each magnet pressing plate 40 is a rectangular stainless steel thin plate, two side edges 41 of each magnet pressing plate 40 are respectively and correspondingly embedded into the third caulking grooves 31 of the permanent magnets 30, one end 42 of each magnet pressing plate 40 is embedded into the first caulking groove 15 of the annular wall 13, and the other end 43 of each magnet pressing plate 40 is embedded into the second caulking groove 21 of the motor outer ring 20. Therefore, the present invention can be used to fix the upper and lower ends 42, 43 of each magnet pressing plate 40 by the structure of the first caulking groove 15 of the motor housing 10 and the second caulking groove 21 of the motor outer ring 20, and each magnet pressing plate 40 is correspondingly arranged between each permanent magnet 30 and is embedded into the corresponding third caulking groove 31, so that the permanent magnets 30 arranged in a ring shape can be stably assembled on the inner wall of the motor outer ring 20, thereby avoiding the problem of adhesive failure which may be caused by the known adhesive method.
Referring to fig. 4, the first caulking groove 15 of the motor housing 10 and the second caulking groove 21 of the motor outer ring 20 of the present invention are corresponding annular grooves for respectively fixing the upper and lower ends 42, 43 of the magnet pressing plates 40, in order to make the back surfaces of the permanent magnets 30 closely abut against the inner wall of the motor outer ring 20, the present invention further implements a chute wall 151, 211 respectively on the first caulking groove 15 and the second caulking groove 21, so that the cross-sectional shapes of the first caulking groove 15 and the second caulking groove 21 present a structure with a wider entrance and a narrower chute bottom, thereby when the upper and lower ends 42, 43 of the magnet pressing plates 40 are respectively embedded into the first caulking groove 15 and the second caulking groove 21, respectively abutting against the chute wall 151 of the first caulking groove 15 and the chute wall 211 of the second caulking groove 21, and further generating a force component force urging the permanent magnets 30 to abut against the inner wall of the motor outer ring 20, the permanent magnets 30 are tightly and firmly attached to the inner wall of the motor outer ring 20 without using a known adhesive.
Referring to fig. 3 and 4, in order to make the motor housing 10 implement the structure of the first caulking groove 15 and be used for assembling the motor outer ring 20, in a preferred embodiment, an annular outer ring combining portion 16 is integrally formed on the periphery of the combining end 14 of the motor housing 10, and an annular first inner blocking wall 17 is provided on the inner side of the outer ring combining portion 16, so that the first caulking groove 15 is formed by the space between the first inner blocking wall 17 and the outer ring combining portion 16, and the outer surface of the first inner blocking wall 17 is used for forming the chute wall 151 of the first caulking groove 15. The outer ring combining portion 16 is preferably implemented with a flange 161 protruding the outer side surface of the annular wall 13 and a step groove 162 formed on an end surface of the flange 161, so as to detachably fit the first end of the motor outer ring 20 in the step groove 162 and make the first end of the motor outer ring 20 abut against the flange 161; the flange 161 may be provided with a plurality of screw through holes 163, each screw through hole 163 is provided with a screw 164, the screw 164 locks the first end of the outer ring 20 of the motor to the flange 161, so as to fix the outer ring 20 of the motor to the outer ring combining portion 16, and the first caulking groove 15 and the second caulking groove 21 are closed by the locking force of the screw 164, so that the upper end 42 and the lower end 43 of each magnet pressing plate 40 respectively abut against the inclined groove wall 151 of the first caulking groove 15 and the inclined groove wall 211 of the second caulking groove 21 to generate a component force for pushing each permanent magnet 30. Therefore, the screw locking action can achieve multiple effects of simultaneously fixing the motor outer ring 20, the magnet pressing plates 40 and the permanent magnets 30.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249385.XA CN111106691A (en) | 2018-10-25 | 2018-10-25 | Motor magnet mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249385.XA CN111106691A (en) | 2018-10-25 | 2018-10-25 | Motor magnet mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111106691A true CN111106691A (en) | 2020-05-05 |
Family
ID=70417556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811249385.XA Withdrawn CN111106691A (en) | 2018-10-25 | 2018-10-25 | Motor magnet mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111106691A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002272039A (en) * | 2001-03-14 | 2002-09-20 | Denso Trim Kk | Rotor of magnet generator |
| CN105099080A (en) * | 2014-05-21 | 2015-11-25 | 建准电机工业股份有限公司 | Ceiling fan motor |
| CN208904789U (en) * | 2018-10-25 | 2019-05-24 | 金士盾科技股份有限公司 | Motor magnet mounting structure |
-
2018
- 2018-10-25 CN CN201811249385.XA patent/CN111106691A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002272039A (en) * | 2001-03-14 | 2002-09-20 | Denso Trim Kk | Rotor of magnet generator |
| CN105099080A (en) * | 2014-05-21 | 2015-11-25 | 建准电机工业股份有限公司 | Ceiling fan motor |
| CN208904789U (en) * | 2018-10-25 | 2019-05-24 | 金士盾科技股份有限公司 | Motor magnet mounting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200505 |
|
| WW01 | Invention patent application withdrawn after publication |