CN207625416U - A kind of multipole internal connecting type miniature DC motor - Google Patents
A kind of multipole internal connecting type miniature DC motor Download PDFInfo
- Publication number
- CN207625416U CN207625416U CN201720930961.1U CN201720930961U CN207625416U CN 207625416 U CN207625416 U CN 207625416U CN 201720930961 U CN201720930961 U CN 201720930961U CN 207625416 U CN207625416 U CN 207625416U
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- magnetite
- casing
- internal connecting
- rotor
- connecting type
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Abstract
The utility model discloses a kind of multipole internal connecting type miniature DC motors, including casing, magnetite, rotor and shaft, shaft is rotatablely installed in casing, rotor is fixedly installed in shaft, and magnetite is fixedly installed in casing, and magnetite is polygon, magnetite is inscribed in casing, rotor is located in magnetite, and while so that direct current generator volume is reduced, performance is maintained.
Description
Technical field
The utility model is related to motors, more particularly, to a kind of multipole internal connecting type miniature DC motor.
Background technology
Permanent magnet DC motor is a kind of direct current generator that magnetic field is established with permanent magnet, is applied to various portable electricity more
In sub- equipment or utensil, such as automobile electric, especially air conditioning for automobiles actuator etc. need motor-driven field.
But existing direct current generator has the following defects：
In order to ensure the performance of permanent magnet DC motor, general permanent magnet DC motor weight is larger, is unfavorable for each electronics and sets
Standby or utensil carrying and transport.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multipole internal connecting type minisize dcs
Motor.
The purpose of this utility model is realized using following technical scheme：
A kind of multipole internal connecting type miniature DC motor, including casing, magnetite, rotor and shaft, shaft are rotatablely installed in machine
Shell, rotor are fixedly installed in shaft, and magnetite is fixedly installed in casing, and magnetite is polygon, and magnetite is inscribed in casing, and rotor is located at
In magnetite.
Further, the ratio between the magnetite thickness and the rotor diameter are 0.035-0.35.
Further, the thickness of each magnetite is 0.7-3.5mm.
Further, the rotor diameter is 10-20mm.
Further, the ratio between the casing length and the casing outer diameter are 0.72-1.78.
Further, the casing outer diameter is 18-25mm.
Further, the length of the casing is 18-32mm.
Further, the ratio between the casing length and the rotor length are 1.2-3.2.
Further, the rotor length is 10-15mm.
Further, the length ratio of the length of the magnetite and the casing is 0.3125-1.11.
Further, the magnetite length is 10-20mm.
Further, the polygon magnetite is integrally formed.
Further, the polygon magnetite is fixed to each other to splice to be physically contacted by several magnetites and be formed.
Compared with prior art, the rotor of the utility model multipole internal connecting type miniature DC motor is fixedly installed in shaft, magnetic
Stone is fixedly installed in casing, and magnetite is polygon, and magnetite is inscribed in casing, and rotor is located in magnetite, and direct current generator volume is made to subtract
While small, performance is maintained.
Description of the drawings
Fig. 1 is a structural schematic diagram of the utility model multipole internal connecting type miniature DC motor first embodiment；
Fig. 2 is the end face structural schematic diagram of the utility model multipole internal connecting type miniature DC motor first embodiment；
Fig. 3 is the end face structural schematic diagram of the utility model multipole internal connecting type miniature DC motor second embodiment.
In figure：100, multipole internal connecting type miniature DC motor；10, casing；20, magnetite；30, rotor；40, shaft.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that when component is referred to as " being fixed on " another component, it can be directly on another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it can be directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it
Can be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more relevant Listed Items.
It please refers to Fig.1 and Fig. 2, in the first embodiment, a kind of multipole internal connecting type miniature DC motor 100 includes casing
10, magnetite 20, rotor 30 and shaft 40.
Shaft 40 is rotatablely installed inside casing 10, and rotor 30 is fixed on shaft 40.Magnetite 20 is fixed on casing 10.Magnetite
20 be polygon, is inscribed in casing 10.Magnetite 20 is integrally formed.In one embodiment, magnetite 20 is square, and middle part is equipped with peace
Fill hole.Rotor 30 is located in the mounting hole of magnetite 20.Magnetite 20 is integral type injecting ferrite, and 4 poles are magnetized.
30 length L1 of rotor is 10-15mm.When 30 length L1 of rotor is less than 10mm, coiling line pole reduces, direct current generator
Resistance becomes smaller, and fever increases.When 30 length L1 of rotor is more than 15mm, in the confined space of miniature DC motor, rotor 30
Length L1 is excessive, and the components such as multipole internal connecting type miniature DC motor internal rectifier and brush are just installed without space.Rotor
30 outer diameters are 10-20mm.When 30 outer diameter of rotor is less than 10mm, 30 back winding space of rotor becomes smaller, and coil resistance reduces, hair
Heat increases.When 30 outer diameter of rotor is more than 20mm, in the case where 10 size of casing is certain, magnetite 20 is too thin, and magnetite 20 is effective
Thickness becomes smaller, and magnetic force is inadequate, causes Motor torque inadequate.
20 length L2 of magnetite is 10-20mm.When 20 length L2 of magnetite is less than 10mm, magnetite 20 effectively will cannot entirely turn
Subcoil is wrapped in magnetic field, and magnetic field utilization rate reduces.When 20 length of magnetite is more than 20mm, entire motor weight is big, volume
Greatly, not meeting utility model reduces the purpose of weight and volume.20 thickness of magnetite is 0.7-3.5mm.When 20 thickness of magnetite is less than
When 0.7mm, 20 processing difficulties of magnetite, and intensity is insufficient, is easy to collapse scarce.When 20 thickness of magnetite is more than 3.5mm, entire motor
Weight is big, and volume is big, and not meeting utility model reduces the purpose of weight and volume.
The length L3 of casing 10 is 18-32mm.When the length L3 of casing 10 is less than 18mm, the actuator of client can not be just
Often installation, and installation space is too small inside direct current generator, and inner body can not be installed.When the length L3 of casing 10 is more than 32mm
When, entire motor weight is big, and volume is big, and not meeting utility model reduces the purpose of weight and volume.The outer diameter of casing 10 is 18-
25mm.When the outer diameter of casing 10 is less than 18mm, the actuator of client can not normal mounting, and installation is empty inside direct current generator
Between it is too small, inner body can not be installed.When the outer diameter of casing 10 is more than 25mm, entire motor weight is big, and volume is big, does not meet
Utility model reduces the purpose of weight and volume.
The ratio between 10 length L3 of casing and 30 length L1 of rotor are 1.2-3.2.The length of the length L2 and casing 10 of magnetite 20
The ratio between L3 is 0.3125-1.11.The ratio between 20 thickness of magnetite and 30 outer diameter of rotor are 0.035-0.35.The length L3 and machine of casing 10
The ratio between outer diameter of shell 10 is 0.72-1.78.Casing 10 is formed by Zinc-coated steel-plated punch.The thickness of casing 10 is more than 0.75mm.
Please continue to refer to Fig. 3, in a second embodiment, a kind of 100 structure of multipole internal connecting type miniature DC motor and first
Structure is roughly the same in embodiment, and difference is that polygon magnetite 20 is fixed to each other by several magnetites 20 and is spliced.It is several
Magnetite 20 makes to contact with each other to form physical connection between magnetite face by glue or fixed seat.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make various other
Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims
Within the scope of.
Claims (11)
1. a kind of multipole internal connecting type miniature DC motor, including casing, magnetite, rotor and shaft, the shaft rotational installation in
The casing, the rotor are fixedly installed in the shaft, and the magnetite is fixedly installed in the casing, it is characterised in that：Institute
It is polygon to state magnetite, and the magnetite is inscribed in the casing, and the rotor is located in the magnetite, the magnetite thickness and institute
It is 0.035-0.35 to state the ratio between rotor diameter, and the ratio between the casing length and the casing outer diameter are 0.72-1.78.
2. multipole internal connecting type miniature DC motor according to claim 1, it is characterised in that：The thickness of each magnetite
For 0.7-3.5mm.
3. multipole internal connecting type miniature DC motor according to claim 1, it is characterised in that：The rotor diameter is 10-
20mm。
4. multipole internal connecting type miniature DC motor according to claim 1, it is characterised in that：The casing outer diameter is 18-
25mm。
5. multipole internal connecting type miniature DC motor according to claim 1, it is characterised in that：The length of the casing is
18-32mm。
6. multipole internal connecting type miniature DC motor according to claim 5, it is characterised in that：The casing length with it is described
The ratio between rotor length is 1.2-3.2.
7. multipole internal connecting type miniature DC motor according to claim 6, it is characterised in that：The rotor length is 10-
15mm。
8. multipole internal connecting type miniature DC motor according to claim 5, it is characterised in that：The length of the magnetite and institute
The length ratio for stating casing is 0.3125-1.11.
9. multipole internal connecting type miniature DC motor according to claim 7, it is characterised in that：The magnetite length is 10-
20mm。
10. multipole internal connecting type miniature DC motor according to claim 1, it is characterised in that：The polygon magnetite one
It is body formed.
11. multipole internal connecting type miniature DC motor according to claim 1, it is characterised in that：The polygon magnetite by
Several magnetites, which are fixed to each other, splices physical contact formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930961.1U CN207625416U (en) | 2017-07-28 | 2017-07-28 | A kind of multipole internal connecting type miniature DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930961.1U CN207625416U (en) | 2017-07-28 | 2017-07-28 | A kind of multipole internal connecting type miniature DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207625416U true CN207625416U (en) | 2018-07-17 |
Family
ID=62817829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720930961.1U Active CN207625416U (en) | 2017-07-28 | 2017-07-28 | A kind of multipole internal connecting type miniature DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207625416U (en) |
-
2017
- 2017-07-28 CN CN201720930961.1U patent/CN207625416U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 512500 Guangdong County of Shixing city in Shaoguan Province town of Taiping village head yellow garden Patentee after: Guangdong Standard Motor Technology Co.,Ltd. Address before: 512500 Guangdong County of Shixing city in Shaoguan Province town of Taiping village head yellow garden Patentee before: SHIXING STANDARD MICRO MOTOR Co.,Ltd. |