CN210780266U - Sound wave motor with improved structure - Google Patents
Sound wave motor with improved structure Download PDFInfo
- Publication number
- CN210780266U CN210780266U CN201921800863.1U CN201921800863U CN210780266U CN 210780266 U CN210780266 U CN 210780266U CN 201921800863 U CN201921800863 U CN 201921800863U CN 210780266 U CN210780266 U CN 210780266U
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- iron core
- bearing
- rear cover
- magnets
- outgoing line
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000004804 winding Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000035939 shock Effects 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000005389 magnetism Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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Abstract
The utility model discloses a sound wave motor with improved structure, which comprises a shell, a rotor, a stator, a transmission shaft, a first bearing, a second bearing and a rear cover; the rotor comprises an outgoing line positioning frame, an iron core shaft, an iron core and a winding coil; the iron core is sleeved on the iron core shaft; the outgoing line positioning frame comprises an integrally formed cylindrical part and a square part which is arranged at the lower end of the cylindrical part and is provided with outgoing line slotted holes at two sides, the outgoing line positioning frame is sleeved on the iron core shaft through inner holes penetrating through the cylindrical part and the square part and is positioned below the iron core, and the bottom surface of the square part is abutted against the top surface of the second bearing; the winding coil is symmetrically wound on two sides of the iron core, and the two ends of the winding coil are respectively wound on the cylindrical part N circles to form shock absorption wire loops, and then the shock absorption wire loops penetrate through the wire outlet slotted hole and penetrate out of the rear cover to be connected with electricity; the stator comprises a magnet fixing frame fixed in the shell and four magnets embedded on the magnet fixing frame. The utility model has the advantages of simple and reasonable structure and the equipment is convenient to the packaging efficiency has been improved and manufacturing cost has been reduced.
Description
Technical Field
The utility model relates to the technical field of motors, specifically relate to a sound wave motor of institutional advancement.
Background
Oral care is increasingly faithful to people, and nursing products of the oral care are endlessly varied, so that the oral care still cannot meet the requirements of people on high-quality life from traditional toothbrushes to electric toothbrushes. Therefore, an acoustic toothbrush comes into operation, and an electric toothbrush usually adopts the high-speed motion of a miniature high-frequency motor to drive a toothbrush head to swing left and right at a high speed and vibrate mechanically, and the vibration frequency of the electric toothbrush is consistent with or close to the acoustic frequency, so as to achieve the ultra-strong cleaning effect. The motor device of the existing electric toothbrush using the high-frequency motor has single function and cannot meet the multifunctional requirement of the electric toothbrush.
In view of this, various sonic motors are available on the market, for example, publication No. CN110138136A discloses a sonic motor including a housing, a stator assembly, a rotor assembly, a drive shaft, a first bearing, a second bearing, an end cap; the shell and the end cover form an accommodating space; the first bearing and the second bearing are respectively fixed at two ends of the transmission shaft, so that the transmission shaft penetrates through the accommodating space; the rotor assembly comprises a first plastic clamping piece, a second plastic clamping piece, an iron core group and a winding coil; the iron core group penetrates through the transmission shaft and is connected with the transmission shaft key; the first limiting piece and the second limiting piece are respectively penetrated on the transmission shaft from two ends, and the iron core group, the first plastic clamping piece and the second plastic clamping piece form a rotor core; the upper end surface of the first plastic clamping piece abuts against the first bearing surface, and the lower end surface of the first plastic clamping piece abuts against the end surface of the second bearing; the cross section of the rotor core is I-shaped, and two winding coils are symmetrically wound on two sides of the rotor core; the wire ends of the two winding coils are respectively wound around the end part N of the second limiting part to form a cushioning wire ring, and then the wire ends extend out of the accommodating cavity from the end cover to be connected with electricity; the stator assembly comprises a stator frame and four permanent magnets embedded in the stator frame, the four permanent magnets are symmetrically distributed on two sides of the transmission shaft, and the two permanent magnets on the same side are opposite in magnetism. Although the sound wave motor has the function of safe use and the structure is simplified to a certain degree, the structure is still not simplified enough, so that the assembly efficiency is not high enough and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
In view of the problems of the prior art, the present invention provides an improved sound wave motor, which has a more simplified structure, thereby further improving the assembly efficiency and reducing the production cost; meanwhile, the vibration isolation device has the advantages of safety and small vibration amplitude.
In order to realize the purpose, the technical scheme of the utility model is that:
a sound wave motor with improved structure comprises a shell, a rotor, a stator, a transmission shaft, a first bearing, a second bearing and a rear cover;
the shell and the rear cover form an accommodating space; one end of the transmission shaft is fixed at the top of the shell through the first bearing; the second bearing is fixed in the rear cover;
the rotor comprises an outgoing line positioning frame, an iron core shaft, an iron core and a winding coil; the two ends of the iron core shaft extend out of the shell, the upper end of the iron core shaft is connected with one end of the transmission shaft through the first bearing, and the lower end of the iron core shaft is connected with the second bearing; the iron core is sleeved on the iron core shaft; the outgoing line positioning frame comprises an integrally formed cylindrical part and a square part which is arranged at the lower end of the cylindrical part and is provided with outgoing line slotted holes at two sides, the outgoing line positioning frame is sleeved on the iron core shaft and is positioned below the iron core through an inner hole penetrating through the cylindrical part and the square part, and the bottom surface of the square part is abutted against the top surface of the second bearing; the winding coils are symmetrically wound on two sides of the iron core, and the thread ends at two ends of the winding coils respectively wind the cylindrical part N to form shock absorption thread rings, and then penetrate through the wire outlet slotted holes and penetrate out of the rear cover to be connected with electricity;
the stator comprises a magnet fixing frame fixed in the shell and four magnets embedded on the magnet fixing frame, the four magnets are symmetrically distributed on two sides of the iron core shaft, and the two magnets on the same side are opposite in magnetism.
As a specific example, a first annular portion is provided on a bottom surface of the square portion around the inner hole, a second annular portion is provided on a bottom surface of the first annular portion around the inner hole, and an outer diameter of the first annular portion is larger than an outer diameter of the second annular portion; the bottom surface of the second annular part abuts against the top surface of the inner ring of the second bearing.
Further, an outer diameter of the second annular portion is smaller than an outer diameter of the inner ring of the second bearing.
As a specific embodiment, the four magnets are correspondingly inserted into four open slots on the magnet fixing frame, and the lower ends of the four magnets extend out of the magnet fixing frame; and the top surface of the rear cover is provided with a convex part for tightly pushing the four magnets.
Further, the bulge is including relative setting and all being located the first bulge and the second bulge of back lid top surface edge, two of the tight one side of first bulge corresponding top magnet, two of the tight opposite side of second bulge corresponding top magnet.
As a specific embodiment, two ends of the winding coil penetrate out of the back cover through strip-shaped holes on the back cover.
The utility model has the advantages that:
(one) the utility model discloses a sound wave motor of institutional advancement has improved current motor structure for its structure is more retrencied, thereby makes packaging efficiency higher and reduced manufacturing cost.
And (II) the two ends of the winding coil are directly connected with electricity, so that the electricity connection mode has better effect and is safer.
And (III) the vibration damping coil formed by the thread ends at the two ends of the coil can reduce the vibration amplitude of the motor and reduce the vibration feeling of a user.
(IV) inlay through four open slots that utilize on the magnet locating rack and adorn four magnets, utilize first bulge and the fixed magnet mount of second bulge and magnet in the back lid afterwards, this kind of connected mode makes the equipment more convenient to packaging efficiency has further been accelerated.
Drawings
Fig. 1 is an exploded view of the present invention;
fig. 2 is a schematic structural view of the outgoing line positioning frame of the present invention;
fig. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
fig. 5 is a cross-sectional view taken along line B-B of fig. 3.
Reference numerals:
1. a housing; 2. a rotor; 21. a wire outlet positioning frame; 211. a cylindrical portion; 212. a square portion; 2121. a wire outlet slot hole; 213. an inner bore; 214. a first annular portion; 215. a second annular portion; 22. an iron core shaft; 23. an iron core; 24. winding a coil; 241. a cushioning wire loop; 3. a stator; 31. a magnet fixing frame; 311. an open slot; 32. a magnet; 4. a drive shaft; 5. a first bearing; 6. a second bearing; 7. a rear cover; 71. a projection; 711. a first projecting portion; 712. a second projection; 72. and (4) strip-shaped holes.
Detailed Description
The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.
As shown in fig. 1-5, a sound wave motor with improved structure comprises a housing 1, a rotor 2, a stator 3, a transmission shaft 4, a first bearing 5, a second bearing 6 and a rear cover 7;
the shell 1 and the rear cover 7 form an accommodating space; one end of the transmission shaft 4 is fixed on the top of the shell 1 through a first bearing 5; the second bearing 6 is fixed in the rear cover 7;
the rotor 2 comprises an outgoing line positioning frame 21, an iron core shaft 22, an iron core 23 and a winding coil 24; two ends of an iron core shaft 22 extend out of the shell 1, the upper end of the iron core shaft 22 is connected with one end of the transmission shaft 3 through a first bearing 5, and the lower end of the iron core shaft 22 is connected with a second bearing 6; the iron core 23 is sleeved on the iron core shaft 22; the outgoing line positioning frame 21 comprises an integrally formed cylindrical part 211 and a square part 212 which is arranged at the lower end of the cylindrical part 211 and is provided with outgoing line slot holes 2121 at two sides, the outgoing line positioning frame 21 is sleeved on the iron core shaft 22 through an inner hole 213 which penetrates through the cylindrical part 211 and the square part 212 and is positioned below the iron core 23, and the bottom surface of the square part 212 is abutted against the top surface of the second bearing 6; the winding coil 24 is symmetrically wound on two sides of the iron core 23, and the two ends of the winding coil 24 respectively wind the cylindrical part 211N to form a shock absorption wire loop 241, and then penetrate through the wire outlet slotted hole 2121 and then penetrate out of the rear cover 7 to be connected with electricity; specifically, the two ends of the winding coil 24 can penetrate through any one of the slot holes 2121; when the iron core shaft 22 rotates, the outgoing line positioning frame 21 also rotates. The vibration sensation of the user can be reduced by forming two vibration damping wire loops 241 around the cylindrical portion 211 by winding the two ends of the coil 24, which are typically two turns around the cylindrical portion 211; those skilled in the art will appreciate that the shapes of the cylindrical portion 211 and the square portion 212 of the outgoing-line positioning frame 21 can be designed as desired;
the stator 3 comprises a magnet fixing frame 31 fixed in the shell 1 and four magnets 32 embedded on the magnet fixing frame 31, wherein the four magnets 32 are symmetrically distributed on two sides of the iron core shaft 22, and the two magnets 32 on the same side have opposite magnetism; after the coil 24 is electrified, a magnetic field is formed between the rotor 2 and the four magnets 32, the iron core shaft 22 is driven to rotate, and the iron core shaft 22 drives the transmission shaft 4 to output power.
Preferably, as shown in fig. 1 and 2, a first annular portion 214 is provided around the inner hole 213 on the bottom surface of the square portion 212, a second annular portion 215 is provided around the inner hole 213 on the bottom surface of the first annular portion 214, and the outer diameter of the first annular portion 214 is larger than that of the second annular portion 215; the bottom surface of the second annular portion 215 abuts against the top surface of the inner ring of the second bearing 6; specifically, the outer diameter of the second annular portion 215 is smaller than the outer diameter of the inner ring of the second bearing 6. By arranging the first annular part 214 and the second annular part 215, a certain gap is left between the square part 212 and the outer ring of the second bearing 6, and only the first annular part 214 is in contact with the inner ring of the second bearing 6, so that the structure can reduce the friction force between the wire outlet positioning frame 21 and the second bearing 6, and the wire outlet positioning frame 21 can better rotate.
Preferably, as shown in fig. 1, four magnets 32 are correspondingly inserted into four opening slots 311 on the magnet fixing frame 31, and the lower ends of the four magnets 32 extend out of the magnet fixing frame 31; a convex part 71 for tightly pushing the four magnets 32 is arranged on the top surface of the rear cover 7; specifically, the protruding portion 71 includes a first protruding portion 711 and a second protruding portion 712 that are oppositely disposed and located at the edge of the top surface of the rear cover 7, the first protruding portion 711 correspondingly abuts against the two magnets 32 on one side, and the second protruding portion 712 correspondingly abuts against the two magnets 32 on the other side. With the above arrangement, four magnets 32 can be fixed well, and at the same time as four magnets 32 are pressed against by projection 71, projection 71 also presses against four magnets 32 and presses against magnet holder 31, thereby fixing magnet holder 31 and magnets 32. Assembling the magnet holder 31 and the magnet 32 in this manner is more efficient.
The two ends of the winding coil 24 pass through the strip-shaped holes 72 on the back cover 7 and penetrate out of the back cover 73.
In summary, the sound wave motor with the improved structure of the utility model improves the existing motor structure, so that the sound wave motor has a simpler structure, thereby improving the assembly efficiency and reducing the production cost; meanwhile, the two ends of the winding coil 24 are directly connected with electricity, and the electricity connection mode is better in effect and safer; the vibration damping coil 241 formed at the ends of the two ends of the winding coil 24 can reduce the vibration amplitude of the motor, thereby reducing the vibration feeling of the user.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (6)
1. The utility model provides a sound wave motor of institutional advancement which characterized in that:
the device comprises a shell, a rotor, a stator, a transmission shaft, a first bearing, a second bearing and a rear cover;
the shell and the rear cover form an accommodating space; one end of the transmission shaft is fixed at the top of the shell through the first bearing; the second bearing is fixed in the rear cover;
the rotor comprises an outgoing line positioning frame, an iron core shaft, an iron core and a winding coil; the two ends of the iron core shaft extend out of the shell, the upper end of the iron core shaft is connected with one end of the transmission shaft through the first bearing, and the lower end of the iron core shaft is connected with the second bearing; the iron core is sleeved on the iron core shaft; the outgoing line positioning frame comprises an integrally formed cylindrical part and a square part which is arranged at the lower end of the cylindrical part and is provided with outgoing line slotted holes at two sides, the outgoing line positioning frame is sleeved on the iron core shaft and is positioned below the iron core through an inner hole penetrating through the cylindrical part and the square part, and the bottom surface of the square part is abutted against the top surface of the second bearing; the winding coils are symmetrically wound on two sides of the iron core, and the thread ends at two ends of the winding coils respectively wind the cylindrical part N to form shock absorption thread rings, and then penetrate through the wire outlet slotted holes and penetrate out of the rear cover to be connected with electricity;
the stator comprises a magnet fixing frame fixed in the shell and four magnets embedded on the magnet fixing frame, the four magnets are symmetrically distributed on two sides of the iron core shaft, and the two magnets on the same side are opposite in magnetism.
2. The improved acoustic wave motor as set forth in claim 1, wherein:
a first annular portion is arranged on the bottom surface of the square portion and surrounds the inner hole, a second annular portion is arranged on the bottom surface of the first annular portion and surrounds the inner hole, and the outer diameter of the first annular portion is larger than that of the second annular portion; the bottom surface of the second annular part abuts against the top surface of the inner ring of the second bearing.
3. The improved acoustic wave motor as set forth in claim 2, wherein:
the second annular portion has an outer diameter smaller than an outer diameter of the inner ring of the second bearing.
4. The improved acoustic wave motor as set forth in claim 1, wherein:
the four magnets are correspondingly inserted into the four open slots on the magnet fixing frame, and the lower ends of the four magnets extend out of the magnet fixing frame; and the top surface of the rear cover is provided with a convex part for tightly pushing the four magnets.
5. The improved acoustic wave motor of claim 4, wherein:
the bulge is including relative setting and all being located the first bulge and the second bulge of back lid top surface edge, two of the tight one side in first bulge corresponding top magnet, two of the tight opposite side in second bulge corresponding top magnet.
6. The improved acoustic wave motor as set forth in claim 1, wherein:
the two ends of the winding coil penetrate out of the rear cover through the strip-shaped holes in the rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800863.1U CN210780266U (en) | 2019-10-24 | 2019-10-24 | Sound wave motor with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800863.1U CN210780266U (en) | 2019-10-24 | 2019-10-24 | Sound wave motor with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210780266U true CN210780266U (en) | 2020-06-16 |
Family
ID=71038024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921800863.1U Expired - Fee Related CN210780266U (en) | 2019-10-24 | 2019-10-24 | Sound wave motor with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210780266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253763A1 (en) * | 2020-06-18 | 2021-12-23 | 广州星际悦动股份有限公司 | Stator magnetism gathering mechanism, electric motor, and electric toothbrush |
-
2019
- 2019-10-24 CN CN201921800863.1U patent/CN210780266U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253763A1 (en) * | 2020-06-18 | 2021-12-23 | 广州星际悦动股份有限公司 | Stator magnetism gathering mechanism, electric motor, and electric toothbrush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 |