CN214626598U - Direct current motor - Google Patents
Direct current motor Download PDFInfo
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- CN214626598U CN214626598U CN202120936206.0U CN202120936206U CN214626598U CN 214626598 U CN214626598 U CN 214626598U CN 202120936206 U CN202120936206 U CN 202120936206U CN 214626598 U CN214626598 U CN 214626598U
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- shell
- direct current
- current motor
- permanent magnet
- rotating shaft
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Abstract
The utility model discloses a direct current motor, which comprises a shell, a stator component, a rotor component and a rotating shaft; the shell is provided with a first shell and a second shell, and a cavity is formed inside the first shell and the second shell; the first shell and the second shell are respectively provided with a cylindrical shell, the edge of the cylindrical shell is provided with a plurality of flange edges, and the first shell and the second shell are fixedly connected through the flange edges; the stator assembly is fixed between the first shell and the second shell; the rotor assembly is provided with a first permanent magnet and a second permanent magnet which are respectively positioned on two sides of the stator assembly in the cavity; the rotating shaft penetrates through the shell, the stator assembly and the rotor assembly, and the rotating shaft is fixedly connected with the rotor assembly. The direct current motor provided by the utility model has no iron core, the stator is a structure of integrated winding on the PCB, and compared with the traditional direct current motor, the direct current motor has the advantages of less copper consumption, thin thickness, light weight and low cost; the flange structure is provided, the fixing is convenient, the placement is stable, the interchangeability with the traditional direct current motor is good, the flange structure can be directly replaced, and the use is convenient.
Description
Technical Field
The utility model relates to a technical field of motor specifically is a direct current motor.
Background
Conventional dc motors, such as 42 series, 57 series, and 86 series, have a core around which copper wire windings are wound. Compared with a direct current motor with an integrated winding on a PCB without an iron core, the traditional direct current motor has the advantages of more copper consumption, thicker thickness, heavier weight and higher cost. In the prior art, an ironless direct current motor is of a disc type structure and is inconvenient to fix; the placement is unstable, the use is inconvenient, and the traditional direct current motor cannot be replaced.
Therefore, there is a need to solve the above technical problems.
Disclosure of Invention
The utility model provides a direct current motor, which has no iron core, the stator is the structure of integrated winding on the PCB, compared with the traditional direct current motor, the direct current motor has less copper consumption, thin thickness, light weight and low cost; the flange structure is provided, the fixing is convenient, the placement is stable, the interchangeability with the traditional direct current motor is good, the flange structure can be directly replaced, and the use is convenient.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a direct current motor comprising:
a housing having a first shell and a second shell, the first shell and the second shell forming a cavity therein; the first shell and the second shell are respectively provided with a cylindrical shell, the edge of the cylindrical shell is provided with a plurality of flange edges, and the first shell and the second shell are fixedly connected through the flange edges;
a stator assembly fixed between the first and second housings;
the rotor assembly is provided with a first permanent magnet and a second permanent magnet, the first permanent magnet and the second permanent magnet are positioned in the cavity, and the first permanent magnet and the second permanent magnet are respectively positioned at two sides of the stator assembly;
and the rotating shaft penetrates through the shell, the stator assembly and the rotor assembly and is fixedly connected with the rotor assembly.
The direct current motor is iron-core-free, and is thin and light in weight compared with the traditional direct current motor; the flange structure is provided, the fixing is convenient, the placement is stable, the interchangeability with the traditional direct current motor is good, the flange structure can be directly replaced, and the use is convenient.
And furthermore, a plurality of axial heat dissipation bulges are independently arranged on the cylindrical shells of the first shell and the second shell or are arranged on the cylindrical shells of the first shell and the second shell. The axial heat dissipation protrusion is arranged, so that better heat dissipation of the motor is facilitated, the stability of operation is guaranteed, and the service life is prolonged.
Furthermore, the edges of the cylindrical shells of the first shell and the second shell are respectively provided with four flange edges which are connected in sequence.
And furthermore, the connection part of the four flange edges in pairs has a fillet structure. The fillet structure makes things convenient for the manufacturing of first casing and second casing, and the motor appearance is more pleasing to the eye.
Furthermore, a plurality of motor fixing holes are formed in the shell or the flange edge. The motor fixing holes are formed in the shell or the flange edge, so that the motor can be fixed more conveniently and flexibly.
The stator assembly is further a multilayer PCB, every two layers of PCBs are electrically connected, and a plurality of windings are integrated on the PCBs. The stator of the direct current motor is of a structure with a winding integrated on a PCB, the winding structure is compact and delicate, and compared with the traditional direct current motor, the direct current motor has the advantages of less copper consumption and lower cost.
The rotor assembly further comprises a first fixing piece and a second fixing piece, the first fixing piece is positioned between the first shell and the first permanent magnet, and the second fixing piece is positioned between the second shell and the second permanent magnet;
the first fixing piece is fixedly connected with the first permanent magnet, and the first fixing piece is fixedly connected with the rotating shaft; the second fixing piece is fixedly connected with the second permanent magnet, and the second fixing piece is fixedly connected with the rotating shaft. The rotor subassembly sets up first permanent magnet and the second permanent magnet of the more convenient fixed of first mounting and second mounting.
Further, a first bearing is arranged between the first shell and the rotating shaft, and a second bearing is arranged between the second shell and the rotating shaft. The rotor assembly drives the rotating shaft to rotate through the first bearing and the second bearing.
And further, terminal ports of lead wires are arranged on the flange edges. The terminal port facilitates connection of the motor and the outside.
Compared with the prior art, the utility model have following technical advantage:
1. the direct current motor has no iron core, the stator is in a structure of integrated windings on a PCB, the winding structure is compact and delicate, and compared with the traditional direct current motor, the direct current motor has the advantages of less copper consumption, thin thickness, light weight and low cost;
2. the direct current motor has a flange structure, is convenient to fix and stable to place, has good interchangeability with the traditional direct current motor, can be directly replaced and is convenient to use;
3. this direct current motor shell sets up axial heat dissipation arch and is favorable to the better heat dissipation of motor, guarantees the stability of operation and improves life.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is an exploded view of fig. 1.
Detailed Description
The invention will be described in further detail with reference to embodiments shown in the drawings.
As shown in fig. 1 to 4, the present invention relates to a dc motor.
As shown in fig. 1, the direct current motor includes a housing 10, a stator assembly 20, a rotor assembly 30, and a rotating shaft 40.
As shown in fig. 1 and 4, the housing 10 has a first housing 11 and a second housing 12, and the first housing 11 and the second housing 12 form a cavity therein; the first shell 11 and the second shell 12 each have a cylindrical shell 13, the edges of the two cylindrical shells 13 each have four flanges 14 connected in sequence, and the first shell 11 and the second shell 12 are fixedly connected by the flanges 14.
As shown in fig. 1, the stator assembly 20 is fixed between the first housing 11 and the second housing 12.
As shown in fig. 3 and 4, the rotor assembly 30 has a first permanent magnet 31 and a second permanent magnet 32, the first permanent magnet 31 and the second permanent magnet 32 are located in the cavity, and the first permanent magnet 31 and the second permanent magnet 32 are respectively located at two sides of the stator assembly 20.
As shown in fig. 1 and 3, the rotating shaft 40 passes through the housing 10, the stator assembly 20 and the rotor assembly 30, and the rotating shaft 40 is fixedly connected with the rotor assembly 30.
Compared with the traditional direct current motor, the direct current motor has the advantages of thin thickness and light weight; the flange structure is provided, the fixing is convenient, the placement is stable, the interchangeability with the traditional direct current motor is good, the flange structure can be directly replaced, and the use is convenient.
As shown in fig. 1 and 2, the cylindrical housings 13 of the first housing 11 and the second housing 12 are respectively provided with a plurality of axial heat dissipating protrusions 15. The arrangement of the axial heat dissipation protrusions 15 is beneficial to better heat dissipation of the motor, ensures the stability of operation and prolongs the service life.
As shown in fig. 1 and 2, the four flange edges 14 have a round corner structure 16 at the connection between two flange edges. The fillet structure makes things convenient for the manufacturing of first casing and second casing, and the motor appearance is more pleasing to the eye.
As shown in fig. 1, the flange 14 has four motor fixing holes 17; other fixing holes may be provided on the end surfaces of the first housing 11 and the second housing 12 for fixing the motor or other components. Different fixing holes are formed in the shell or the flange edge, so that the motor can be fixed more conveniently and flexibly, and the use is convenient.
As shown in fig. 1 and 3, the stator assembly 20 is a multi-layer PCB board, each two layers of PCB boards are electrically connected, and the PCB board is integrated with a plurality of windings. The stator of the direct current motor is of a structure with a winding integrated on a PCB, the winding structure is compact and delicate, and compared with the traditional direct current motor, the direct current motor has the advantages of less copper consumption and lower cost.
As shown in fig. 4, the rotor assembly 30 further includes a first fixing member 33 and a second fixing member 34, the first fixing member 33 is located between the first housing 11 and the first permanent magnet 31, and the second fixing member 34 is located between the second housing 12 and the second permanent magnet 32.
As shown in fig. 3, the first fixing member 33 is fixedly connected to the first permanent magnet 31, and the first fixing member 33 is fixedly connected to the rotating shaft 40; the second fixing member 34 is fixedly connected to the second permanent magnet 32, and the second fixing member 34 is fixedly connected to the rotating shaft 40. The rotor assembly 30 is more conveniently provided with the first and second fixing pieces 33 and 34 to fix the first and second permanent magnets 31 and 32.
As shown in fig. 3, a first bearing 50 is provided between the first housing 11 and the rotating shaft 40, and a second bearing 60 is provided between the second housing 12 and the rotating shaft 40. The rotor assembly 30 rotates the rotation shaft 40 through the first bearing 50 and the second bearing 60.
As shown in fig. 2, the flange 14 is provided with terminal openings 18 for the leads. The terminal port facilitates connection of a stator assembly of the motor with the outside.
The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; any person skilled in the art can make local changes or modifications without departing from the scope of the present invention and the technical features and similar features disclosed in the present invention, and all equivalent embodiments using the technical content disclosed in the present invention belong to the protection scope of the present invention.
Claims (9)
1. A direct current motor, comprising:
a housing having a first shell and a second shell, the first shell and the second shell forming a cavity therein; the first shell and the second shell are respectively provided with a cylindrical shell, the edge of the cylindrical shell is provided with a plurality of flange edges, and the first shell and the second shell are fixedly connected through the flange edges;
a stator assembly fixed between the first and second housings;
the rotor assembly is provided with a first permanent magnet and a second permanent magnet, the first permanent magnet and the second permanent magnet are positioned in the cavity, and the first permanent magnet and the second permanent magnet are respectively positioned at two sides of the stator assembly;
and the rotating shaft penetrates through the shell, the stator assembly and the rotor assembly and is fixedly connected with the rotor assembly.
2. The direct current motor according to claim 1, wherein the cylindrical housings of the first and second housings are provided with a plurality of axial heat dissipating protrusions, either individually or in combination.
3. The direct current motor of claim 1, wherein the cylindrical case edges of the first and second cases have four flange edges connected in sequence, respectively.
4. The direct current motor of claim 3, wherein the four flange edges have a rounded corner structure at the connection of each two flange edges.
5. The direct current motor of claim 1, wherein the housing or flange has a plurality of motor fixing holes.
6. The direct current motor of claim 1, wherein the stator assembly is a multi-layer PCB board, each two layers of the PCB board are electrically connected, and a plurality of windings are integrated on the PCB board.
7. The dc electric machine according to claim 1, wherein the rotor assembly further comprises a first fixing member and a second fixing member, the first fixing member being located between the first housing and the first permanent magnet, the second fixing member being located between the second housing and the second permanent magnet;
the first fixing piece is fixedly connected with the first permanent magnet, and the first fixing piece is fixedly connected with the rotating shaft; the second fixing piece is fixedly connected with the second permanent magnet, and the second fixing piece is fixedly connected with the rotating shaft.
8. The direct current motor according to claim 1, wherein a first bearing is provided between the first housing and the rotating shaft, and a second bearing is provided between the second housing and the rotating shaft.
9. The direct current motor according to claim 1, wherein a terminal opening of a lead is provided on the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120936206.0U CN214626598U (en) | 2021-04-30 | 2021-04-30 | Direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120936206.0U CN214626598U (en) | 2021-04-30 | 2021-04-30 | Direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214626598U true CN214626598U (en) | 2021-11-05 |
Family
ID=78406778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120936206.0U Active CN214626598U (en) | 2021-04-30 | 2021-04-30 | Direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214626598U (en) |
-
2021
- 2021-04-30 CN CN202120936206.0U patent/CN214626598U/en active Active
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