CN209994254U - Ultrasonic brushless motor - Google Patents
Ultrasonic brushless motor Download PDFInfo
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- CN209994254U CN209994254U CN201920567324.1U CN201920567324U CN209994254U CN 209994254 U CN209994254 U CN 209994254U CN 201920567324 U CN201920567324 U CN 201920567324U CN 209994254 U CN209994254 U CN 209994254U
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Abstract
An ultrasonic brushless motor comprising: the head end of the shell is provided with a bearing hole, a bearing is arranged in the bearing hole, and the tail end of the shell is provided with an opening; at least two iron cores are symmetrically arranged in the shell; the rear cover is arranged at the tail end of the shell and used for sealing all the components in the shell, a bearing groove is formed in the end face of the inner side of the rear cover, and a bearing is arranged in the bearing groove; the main shaft is rotatably arranged in the shell and positioned between the iron cores, the magnetic strips are fixedly arranged on the main shaft, one end of the main shaft is arranged in a bearing of the rear cover, and the other end of the main shaft penetrates through the bearing at the head end of the shell and extends out of the shell; further comprising: the two wire racks are respectively spliced with the symmetrically arranged iron cores from the two sides of the iron cores; a lead plate is arranged at one end of the wire frame close to one end of the tail end of the shell; the coil is wound on the coil holder and the iron core; the magnetic conduction plate is connected with the two wire racks; the rear cover is provided with a lead plate groove matched with the lead plate.
Description
Technical Field
The utility model relates to an ultrasonic wave brushless motor.
Background
The sound wave toothbrush drives the toothbrush head to swing left and right at a high speed by utilizing the high-speed motion of the ultrasonic brushless motor to generate mechanical vibration, and the vibration frequency of the sound wave toothbrush is consistent with or close to the sound wave frequency so as to achieve the super-strong cleaning effect.
At present, the existing ultrasonic brushless motor generally winds the coil on the stator core directly and then penetrates out the lead wire of the coil from the back cover, for example, the patent application number of 201620213539.X in the prior art, which is named as the utility model of the acoustic wave motor and the acoustic wave toothbrush with the same, the structure that the lead wire is led out from the back cover is shown in the attached drawing, but the structure needs to separate the lead wire from other elements during assembly and the lead wire needs to be aligned with the perforation on the back cover, and the assembly process is troublesome.
SUMMERY OF THE UTILITY MODEL
In order to effectively solve the problem, the utility model provides an ultrasonic wave brushless motor.
The technical scheme of the utility model as follows:
an ultrasonic brushless motor comprising:
the shell is used for accommodating each element and providing a supporting foundation, the head end of the shell is provided with a bearing hole, a bearing is arranged in the bearing hole, and the tail end of the shell is provided with an opening;
at least two iron cores are symmetrically arranged in the shell;
the rear cover is arranged at the tail end of the machine shell and used for sealing all components in the machine shell, a bearing groove is formed in the end face of the inner side of the rear cover, and a bearing is arranged in the bearing groove;
the main shaft is rotatably arranged in the shell and positioned between the iron cores, the magnetic strips are fixedly arranged on the main shaft, one end of the main shaft is arranged in a bearing of the rear cover, and the other end of the main shaft penetrates through the bearing at the head end of the shell to extend out of the shell;
further comprising: the two wire racks are respectively spliced with the symmetrically arranged iron cores from two sides of the iron cores;
a lead plate is arranged at one end of the wire rack close to one end of the tail end of the shell;
the coil is wound on the coil holder and the iron core;
the magnetic conduction plate is connected with the two wire racks;
the rear cover is provided with a lead plate groove matched with the lead plate.
Further, the iron core includes: the winding device comprises an arc-shaped fixed inner plate and an arc-shaped fixed outer plate, wherein the fixed inner plate is connected with the fixed outer plate through a winding cylinder.
Further, the wire frame includes: the winding device comprises a fixing part, a limiting part, an inner plate inserting part, a winding part and an outer plate inserting part, wherein the inner plate inserting part is arranged on the inner side of the fixing part, the winding part is arranged on the outer side of the fixing part, the outer plate inserting part is arranged at the top of the winding part, and the limiting part is connected with one end of the fixing part.
Furthermore, the fixing part is cylindrical, the middle part of the fixing part is provided with a space for accommodating the spindle, the upper side and the lower side of the fixing part are provided with through grooves matched with the winding cylinder, the inner side of the fixing part is provided with an inwards concave inner plate inserting part corresponding to the through groove, the outer side of the fixing part is provided with an outwards extending winding part connecting part corresponding to the through groove, and the top of the winding part is respectively connected with one outer plate inserting part.
Furthermore, the inner plate insertion part is an inwards concave groove and is matched with the shape of the fixed inner plate;
the outer plate inserting part is provided with two arc supporting plates, one end of each arc supporting plate is connected with the winding part, and the other end of each arc supporting plate extends outwards and is matched with the shape of the fixed outer plate;
the coil is wound on the winding parts of the two wire racks to wind the two wire racks together.
Furthermore, the limiting part is fixedly arranged at one end of the fixing part and extends to the outer plate insertion part, the limiting part abuts against one side of the inner plate insertion part, the winding part and one side of the outer plate insertion part, and the top surface of the limiting part is an arc surface and protrudes out of the arc surface where the outer plate insertion part is located.
Further, the lead plate sets up be close to on the fixed part spacing portion the same one end, at least two the lead plate is central symmetry's setting and is in the both sides of the one end of fixed part, every the lead plate corresponds a set of winding respectively and is in coil on the wire winding portion, the lead plate inboard is provided with the lead wire groove, the setting of lead wire groove indent is in the inner wall of lead plate, the edge of lead wire groove is provided with the backstop arch that prevents the lead wire and deviate from, the lead plate outer wall is being close to fixed part one side has the lead wire breach, the lead wire breach with the position of lead wire groove parallel and level sets up to interior concavity, a lead wire is drawn forth through the lead plate to the motor outside to the coil.
Furthermore, be provided with the magnetic conduction board mount table on the lateral wall of fixed part, the magnetic conduction board mount table symmetry sets up the both sides of fixed part, be provided with on the magnetic conduction board mount table and be used for fixing the projection of magnetic conduction board.
Furthermore, the magnetic conducting plate is symmetrically provided with at least two fixing holes, two ends of the magnetic conducting plate are respectively arranged on the magnetic conducting plate mounting tables of the two wire racks positioned on the same side, and the fixing holes are respectively matched with the convex columns on the wire racks.
Furthermore, at least two other lead plate grooves are symmetrically formed in the side wall of the rear cover, the shape of each lead plate groove is matched with that of each lead plate, a wire outlet groove perpendicular to the direction of each lead plate groove is formed in the bottom of each lead plate groove, one end of each wire outlet groove is communicated with each lead plate groove, the other end of each wire outlet groove is communicated to the outer side end face of the rear cover, and a lead led out by each lead plate is led out from the wire outlet groove from the outer side end face of the rear cover.
The utility model discloses a structure that line frame and iron core were pegged graft, the assembly is simple, adopts the outer winding formula wire winding simultaneously, with the direct coiling of coil on line frame, easily wire winding, stretches out two outlet above the line frame structure, can directly draw forth the motor outside with the lead wire of coil, need not to increase the terminal. Compared with the existing structure, the structure reduces the secondary wire hanging process, does not need to additionally increase terminals on the motor, simplifies the structure of the motor and saves the cost.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a schematic diagram of the iron core structure of the present invention;
FIG. 5 is a schematic view of the structure of the wire frame with lead plate of the present invention;
FIG. 6 is a schematic diagram of a lead plate structure of the present invention;
FIG. 7 is a schematic diagram of the structure of the iron core and the wire frame in the state of inserting connection;
fig. 8 is a schematic cross-sectional view of the iron core and the wire frame in the insertion state of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only for explaining the present invention and are not intended to limit the present invention, and the drawings are used for the front and the back of the embodiments, and are only used for clarifying the positional relationship and are not intended to limit the present invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention.
As shown in fig. 1 to 3, an ultrasonic brushless motor includes:
the device comprises a machine shell 1, a bearing hole 10, a bearing 11 and a supporting base, wherein the machine shell 1 is used for accommodating various elements and providing a supporting base, the head end of the machine shell 1 is provided with the bearing hole 10, the bearing hole 10 is internally provided with the bearing 11, and the tail end of the machine shell 1 is provided with an opening;
the iron cores 2 are symmetrically arranged in the machine shell 1;
the rear cover 3 is arranged at the tail end of the machine shell 1 and used for sealing all components in the machine shell 1, a bearing groove 33 is formed in the end face of the inner side of the rear cover 3, and a bearing 11 is arranged in the bearing groove 33;
the main shaft 4 is rotatably mounted in the machine shell 1 and located between the iron cores 2, the magnetic strips 41 are fixedly arranged on the main shaft 4, one end of the main shaft 4 penetrates through a main shaft limiting ring 42 and is mounted in the bearing 11 of the rear cover 3, and the other end of the main shaft 4 penetrates through the bearing 11 at the head end of the machine shell 1 and extends out of the machine shell 1;
further comprising: the two wire frames 5 are respectively spliced with the symmetrically arranged iron cores 2 from two sides of the iron cores 2;
a lead plate 6 is arranged at one end of the wire frame 5 close to one end of the tail end of the shell 1;
the coil 7 is wound on the coil holder 5 and the iron core 2;
the magnetic conduction plate 8 is connected with the two wire racks 5;
the rear cover 3 is provided with a lead plate groove 31 that fits the lead plate 6.
As shown in fig. 4, the core 2 includes: the iron core comprises an arc-shaped fixed inner plate 21 and an arc-shaped fixed outer plate 22, wherein the fixed inner plate 21 and the fixed outer plate 22 are connected through a winding cylinder 23, and the cross section of the iron core 2 is approximately in an arc-shaped I shape.
As shown in fig. 2, 5 and 6, the wire frame 5 includes: the winding device comprises a fixing part 51, a limiting part 52, an inner plate inserting part 53, a winding part 54 and an outer plate inserting part 55, wherein the inner plate inserting part 53 is arranged on the inner side of the fixing part 51, the winding part 54 is arranged on the outer side of the fixing part 51, the outer plate inserting part 55 is arranged on the top of the winding part 54, and the limiting part 52 is connected with one end of the fixing part 51. The fixing portion 51 is cylindrical, a space for accommodating the spindle 4 is formed in the middle of the fixing portion, through grooves 511 adapted to the winding cylinder 23 are formed in the upper side and the lower side of the fixing portion 51, the inner side of the fixing portion 51 is provided with concave inner plate insertion portions 53 corresponding to the through grooves 511, the outer side of the fixing portion 51 is provided with outward extending winding portions 54 corresponding to the through grooves 511, and the top of each winding portion 54 is connected with one outer plate insertion portion 55.
As shown in fig. 2 and 5-8, the inner plate insertion portion 53 is a concave groove and is adapted to the shape of the fixed inner plate 21, and when the bobbin 5 is inserted into the core 2, the fixed inner plate 21 and the inner plate insertion portion 53 are inserted together, so that the bottom surface of the fixed inner plate 21 and the inner surface of the fixed portion 51 form an almost complete arc surface.
As shown in fig. 2 and 5-8, the outer plate insertion part 55 is formed by two arc-shaped supporting plates, one end of each arc-shaped supporting plate is connected with the winding part 54, and the other end of each arc-shaped supporting plate extends outwards and is matched with the shape of the fixed outer plate 22.
As shown in fig. 2 and 5-8, when the bobbin 5 is inserted into the iron core 2, the winding cylinder 23 is inserted into the winding portion 54, and the coil 7 is wound around the winding portions 54 of the two bobbins 5 to wind the two bobbins 5 together.
As shown in fig. 5, the limiting portion 52 is fixedly disposed at one end of the fixing portion 51 and extends to the outer plate insertion portion 55, the limiting portion 52 abuts against one side of the inner plate insertion portion 53, the winding portion 54 and the outer plate insertion portion 55, the limiting portion 52 is used for limiting the maximum insertion position of the iron core 2, the top surface of the limiting portion 52 is an arc surface and protrudes out of the arc surface where the outer plate insertion portion 55 is located, when the bobbin 5 is inserted into the iron core 2, the fixed outer plate 22 is inserted into the outer plate insertion portion 55, so that the top surface of the fixed outer plate 22 and the top surface of the limiting portion 52 form an approximately complete arc surface.
As shown in fig. 5-6, the lead plates 6 are disposed at the same end of the fixing portion 51 close to the limiting portion 52, at least two lead plates 6 are disposed at two sides of one end of the fixing portion 51 in a central symmetry manner, each lead plate 6 corresponds to a group of coils 7 wound on the winding portion 54, a lead groove 61 is disposed at an inner side of each lead plate 6, the lead groove 61 is disposed at an inner wall of the lead plate 6 in a concave manner, a stop protrusion 62 for preventing a lead from coming off is disposed at an edge of the lead groove 61, a lead notch 63 is disposed at a side of an outer wall of the lead plate 6 close to the fixing portion 51, the lead notch 63 is disposed in a concave manner at a position flush with the lead groove 61, a lead from the coil 7 is led out to an exterior of the motor through the lead plate 6, and the lead notch 63 is used for guiding a lead of the coil 7 into the lead, the internal recesses in the lead notches 63 allow for rapid entry of the lead into the lead slots 61.
As shown in fig. 5, a magnetic conductive plate mounting table 512 is disposed on an outer side wall of the fixing portion 51, the magnetic conductive plate mounting tables 512 are symmetrically disposed on two sides of the fixing portion 51, and a convex column 513 for fixing the magnetic conductive plate 8 is disposed on the magnetic conductive plate mounting table 512.
As shown in fig. 2 and 5, at least two fixing holes 81 are symmetrically formed in the magnetic conductive plate 8, two ends of the magnetic conductive plate 8 are respectively disposed on the magnetic conductive plate mounting tables 512 on the same side of the two wire racks 5, and the fixing holes are respectively matched with the protruding columns 513 on the wire racks 5.
As shown in fig. 2 and 3, at least two other lead plate grooves 31 are symmetrically arranged on the side wall of the rear cover 3, the lead plate grooves 31 are matched with the lead plates 6 in shape, a lead groove 32 perpendicular to the lead plate grooves 31 is arranged at the bottom of the lead plate grooves 31, one end of the lead groove 32 is communicated with the lead plate grooves 31, the other end of the lead groove 32 is communicated with the outer end face of the rear cover 3, and the lead wires led out from the lead plates 6 are led out from the lead groove 32 from the outer end face of the rear cover 3. By adopting the structure, the lead is led out from the rear cover 3 without being penetrated by a school hand, and the lead can be directly buckled and then pulled by hand, thereby effectively simplifying the assembly process.
The utility model discloses a structure that line frame and iron core were pegged graft, the assembly is simple, adopts the outer winding formula wire winding simultaneously, with the direct coiling of coil on line frame, easily wire winding, stretches out two outlet above the line frame structure, can directly draw forth the motor outside with the lead wire of coil, need not to increase the terminal. Compared with the existing structure, the structure reduces the secondary wire hanging process, does not need to additionally increase terminals on the motor, simplifies the structure of the motor and saves the cost.
Claims (10)
1. An ultrasonic brushless motor comprising:
the device comprises a machine shell (1) and a bearing assembly, wherein the machine shell is used for accommodating elements and providing a supporting base, a bearing hole (10) is formed in the head end of the machine shell (1), a bearing (11) is arranged in the bearing hole (10), and the tail end of the machine shell (1) is provided with an opening;
the iron cores (2), at least two of the iron cores (2) are symmetrically arranged in the machine shell (1);
the rear cover (3) is arranged at the tail end of the machine shell (1) and used for sealing all components in the machine shell (1), a bearing groove (33) is formed in the end face of the inner side of the rear cover (3), and a bearing (11) is arranged in the bearing groove (33);
the magnetic iron core is characterized by comprising a main shaft (4) and a plurality of magnetic strips (41) arranged on the main shaft (4), wherein the main shaft (4) is rotatably arranged in the machine shell (1) and positioned between the iron cores (2), the magnetic strips (41) are fixedly arranged on the main shaft (4), one end of the main shaft (4) is arranged in a bearing (11) of the rear cover (3), and the other end of the main shaft (4) penetrates through the bearing (11) at the head end of the machine shell (1) and extends out of the machine shell (1);
it is characterized by also comprising: the two wire racks (5) are respectively spliced with the symmetrically arranged iron cores (2) from two sides of the iron cores (2);
a lead plate (6) is arranged at one end of the wire frame (5) close to one end of the tail end of the shell (1);
the coil (7) is wound on the coil holder (5) and the iron core (2);
the magnetic conduction plate (8), the said magnetic conduction plate (8) connects two said coil holders (5);
the rear cover (3) is provided with a lead plate groove (31) matched with the lead plate (6).
2. The ultrasonic brushless motor according to claim 1, wherein the core (2) comprises: the winding device comprises an arc-shaped fixed inner plate (21) and an arc-shaped fixed outer plate (22), wherein the fixed inner plate (21) and the fixed outer plate (22) are connected through a winding cylinder (23).
3. The ultrasonic brushless motor according to claim 2, wherein the bobbin (5) comprises: the winding device comprises a fixing part (51), a limiting part (52), an inner plate inserting part (53), a winding part (54) and an outer plate inserting part (55), wherein the inner plate inserting part (53) is arranged on the inner side of the fixing part (51), the winding part (54) is arranged on the outer side of the fixing part (51), the outer plate inserting part (55) is arranged on the top of the winding part (54), and the limiting part (52) is connected with one end of the fixing part (51).
4. The ultrasonic brushless motor of claim 3, wherein the fixing portion (51) is cylindrical, a space for accommodating the spindle (4) is formed in a middle portion of the fixing portion, through grooves (511) adapted to the winding posts (23) are formed in upper and lower sides of the fixing portion (51), the inner side of the fixing portion (51) is provided with an inner plate insertion portion (53) recessed in a position corresponding to the through grooves (511), the outer side of the fixing portion (51) is provided with a winding portion (54) connection portion extending outward in a position corresponding to the through grooves (511), and the top of the winding portion (54) is connected with one outer plate insertion portion (55).
5. The ultrasonic brushless motor according to claim 4, wherein the inner plate insertion part (53) is a concave groove and is adapted to the shape of the fixed inner plate (21);
the outer plate inserting part (55) is composed of two arc supporting plates, one end of each arc supporting plate is connected with the winding part (54), and the other end of each arc supporting plate extends outwards and is matched with the shape of the fixed outer plate (22);
the coil (7) is wound on the winding parts (54) of the two wire frames (5) to wind the two wire frames (5) together.
6. The ultrasonic brushless motor according to claim 4, wherein the limiting portion (52) is fixedly disposed at one end of the fixing portion (51) and extends to the outer plate insertion portion (55), the limiting portion (52) abuts against one side of the inner plate insertion portion (53), the winding portion (54) and the outer plate insertion portion (55), and a top surface of the limiting portion (52) is an arc surface and protrudes beyond an arc surface where the outer plate insertion portion (55) is located.
7. The ultrasonic brushless motor of claim 4, wherein the lead plates (6) are disposed at the same end of the fixing portion (51) near the position-limiting portion (52), at least two lead plates (6) are disposed at two sides of one end of the fixing portion (51) in a central symmetry manner, each lead plate (6) corresponds to a set of coils (7) wound on the winding portion (54), a lead groove (61) is disposed at the inner side of the lead plate (6), the lead groove (61) is disposed at the inner wall of the lead plate (6) in a concave manner, a stop protrusion (62) for preventing lead from falling off is disposed at the edge of the lead groove (61), a lead notch (63) is disposed at the outer wall of the lead plate (6) near the fixing portion (51), and the position where the lead notch (63) is flush with the lead groove (61) is disposed in a concave manner, and a lead wire is led out from the coil (7) and led out to the outside of the motor through the lead plate (6).
8. The ultrasonic brushless motor of claim 4, wherein a magnetic conductive plate mounting table (512) is disposed on an outer side wall of the fixing portion (51), the magnetic conductive plate mounting tables (512) are symmetrically disposed on two sides of the fixing portion (51), and a convex column (513) for fixing the magnetic conductive plate (8) is disposed on the magnetic conductive plate mounting table (512).
9. The ultrasonic brushless motor of claim 8, wherein the magnetic conductive plate (8) is symmetrically provided with at least two fixing holes (81), two ends of the magnetic conductive plate (8) are respectively disposed on the magnetic conductive plate mounting tables (512) of the two wire racks (5) on the same side, and the fixing holes are respectively matched with the convex columns (513) on the wire racks (5).
10. The ultrasonic brushless motor of claim 1, wherein at least two other lead plate grooves (31) are symmetrically arranged on the side wall of the rear cover (3), the lead plate grooves (31) are matched with the lead plates (6) in shape, the bottoms of the lead plate grooves (31) are provided with outlet grooves (32) perpendicular to the direction of the lead plate grooves (31), one ends of the outlet grooves (32) are communicated with the lead plate grooves (31), the other ends of the outlet grooves (32) are communicated with the outer end face of the rear cover (3), and the leads led out from the lead plates (6) are led out from the outlet grooves (32) from the outer end face of the rear cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920567324.1U CN209994254U (en) | 2019-04-24 | 2019-04-24 | Ultrasonic brushless motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920567324.1U CN209994254U (en) | 2019-04-24 | 2019-04-24 | Ultrasonic brushless motor |
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| CN209994254U true CN209994254U (en) | 2020-01-24 |
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| CN201920567324.1U Active CN209994254U (en) | 2019-04-24 | 2019-04-24 | Ultrasonic brushless motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190722A (en) * | 2019-04-24 | 2019-08-30 | 深圳市德宝电机马达有限公司 | A kind of ultrasonic wave brushless motor |
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2019
- 2019-04-24 CN CN201920567324.1U patent/CN209994254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190722A (en) * | 2019-04-24 | 2019-08-30 | 深圳市德宝电机马达有限公司 | A kind of ultrasonic wave brushless motor |
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