CN216929722U - Double-layer metal foil coil motor - Google Patents
Double-layer metal foil coil motor Download PDFInfo
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- CN216929722U CN216929722U CN202220598768.3U CN202220598768U CN216929722U CN 216929722 U CN216929722 U CN 216929722U CN 202220598768 U CN202220598768 U CN 202220598768U CN 216929722 U CN216929722 U CN 216929722U
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Abstract
The utility model relates to the technical field of planar motors, in particular to a double-layer metal foil coil motor. A coil of the motor is formed by connecting a first conductive metal foil and a second conductive metal foil in parallel and winding together; the first conductive metal foil and the second conductive metal foil are made of different materials; the surface of the first conductive metal foil is subjected to oxidation treatment, and the surface of the second conductive metal foil is not subjected to oxidation treatment. The planar motor coil of the double-layer metal foil coil motor is wound by adopting the metal foils, the filling rate of the vertical section of the coil is higher, almost no area loss exists, the leads are in surface contact, the heat conductivity in the vertical direction is excellent, and the heat dissipation efficiency can be greatly improved.
Description
Technical Field
The utility model relates to the technical field of planar motors, in particular to a double-layer metal foil coil motor.
Background
The planar motor is divided into a stepping planar motor, a magnetic suspension planar motor and an induction planar motor. The magnetic suspension planar motor is suitable for high-cleanliness and high-vacuum environments because no mechanical friction exists between the stator and the rotor; the device has the advantages of good mechanical property and the like, and is particularly suitable for a workpiece table. The motor thrust of the magnetic suspension planar motor is derived from Lorentz force generated by coil current in a magnetic field generated by the permanent magnet array.
The thrust-mass ratio of the moving-coil type planar motor is large, enough high speed and acceleration can be obtained, the moving table does not need coil switching in the moving process, and the control is relatively simple; and the table top is relatively large, and the stroke in the horizontal direction easily meets the use requirement. The coil adopts the wire close winding to form no iron core structure, can reduce the quality, avoids the hysteresis lag loss.
Promote motor thrust and can let the motor reach higher acceleration level, according to the lorentz force principle, under the certain condition of magnetic field intensity scope, improve electric current or coil turn and can improve thrust, but resistance increase simultaneously, calorific capacity also increases thereupon, causes thermal stress or overheated burnout coil to other parts easily. It is more reasonable to use the motor constant, i.e. the square of the thrust divided by the heating value, to evaluate the motor design effect.
At present, most of planar motors used on workpiece platforms on the market are in a single-layer mode of enameled wire winding, are easy to manufacture, and have limited thrust. Although the copper coil double-layer stacking mode is available, the weight and the volume are large, the heat radiator is complex in design, and the reliability is low.
Therefore, it is necessary to design a motor in a novel coil form, which can effectively improve the motor constant within a certain size range, and does not increase the structural complexity of the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-layer metal foil coil motor.
In order to solve the technical problem, the application provides the following technical scheme:
a double-layer metal foil coil motor is characterized in that a coil of the motor is wound by connecting a first conductive metal foil and a second conductive metal foil in parallel; the first conductive metal foil and the second conductive metal foil are made of different materials; the surface of the first conductive metal foil is subjected to oxidation treatment; the surface of the second conductive metal foil is not subjected to oxidation treatment.
And one ends of the first conductive metal foil and the second conductive metal foil are simultaneously connected with the connector and conducted.
Wherein the connector is a pin. Other types of joints can be selected according to actual requirements.
The first conductive metal foil and the second conductive metal foil are wound in the same direction.
The first conductive metal foil and the second conductive metal foil are equal in winding turns and length. In some cases, the lengths of the first conductive metal foil and the second conductive metal foil may also be set to be unequal.
And the second conductive metal foils of two adjacent circles are spaced by the first conductive metal foil to realize insulation.
The first conductive metal foil and the second conductive metal foil are connected and conducted at the outgoing line of the coil.
Wherein the first conductive metal foil is an aluminum foil.
Wherein the second conductive metal foil is a copper foil.
Compared with the prior art, the double-layer metal foil coil motor at least has the following beneficial effects:
the planar motor coil of the double-layer metal foil coil motor is wound by adopting the metal foils, the filling rate of the vertical section of the coil is higher, almost no area loss exists, the leads are in surface contact, the heat conductivity in the vertical direction is excellent, and the heat dissipation efficiency can be greatly improved. In the coil wound by the round-section wires in the prior art, the filling rate of the vertical section of the coil is low, the wires are in line contact, heat conduction is not facilitated, and the temperature difference between the inner wire and the outer wire of the coil is large.
The planar motor coil of the double-layer metal foil coil motor of the utility model uses two metal foils made of different materials to wind the motor coil, and only one metal wire needs to be insulated, so that the cross section space of the coil can be utilized as much as possible, and the number of turns is ensured.
The double-layer metal foil coil motor of the present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a coil structure of a double-layer metal foil coil motor according to the present invention.
Wherein, 1-a first conductive metal foil; 2-a second conductive metal foil; 3-a linker.
Detailed Description
As shown in fig. 1, a double-layer metal foil coil motor, wherein a coil of the motor is wound by connecting a first conductive metal foil 1 and a second conductive metal foil 2 in parallel; the surface of the first conductive metal foil 1 is oxidized, and the surface of the second conductive metal foil 2 is not oxidized.
And a joint 3 is arranged on the central frame of the coil, and one ends of the first conductive metal foil 1 and the second conductive metal foil 2 are simultaneously connected with the joint 3 and conducted. The connector 3 is a pin.
The first conductive metal foil 1 and the second conductive metal foil 2 are wound in the same direction. The first conductive metal foil 1 and the second conductive metal foil 2 have the same number of winding turns and the same length.
And the adjacent two circles of second conductive metal foils 2 are spaced through the first conductive metal foil 1 to realize insulation. The first conductive metal foil 1 and the second conductive metal foil 2 are connected and conducted at the outgoing line of the coil.
Wherein, the first conductive metal foil 1 is an aluminum foil. The second conductive metal foil 2 is a copper foil.
The material aluminum is easy to carry out surface insulation treatment, such as oxidation, but the surface treatment mode of the material copper is single, and the uniform plating layer is difficult to ensure by adopting the enamelling mode, so the utility model saves the enamelling treatment space by connecting the material aluminum and the material copper in parallel, and realizes the problem of wire insulation.
The resistivity of the copper foil is about 3/5 of the aluminum foil, the density of the copper foil is more than twice of that of the aluminum foil, and the resistance and the heat generation can be reduced by adopting a mode of connecting the copper foil and the aluminum foil in parallel. Although the number of turns is half of that of a single metal material, the resistance is reduced to about 1/5, and the motor constant can be improved by about 25%. In general, if the copper foil is subjected to the enamel insulated treatment, the width of the cross section of the copper foil needs to be increased by 0.15mm, which accounts for about 15% of the cross section of the whole coil.
It can be seen that the coil scheme of the utility model can be directly adopted by the original motor structure or changed a little.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides a double-deck metal foil coil motor which characterized in that: the coil of the motor is formed by winding a first conductive metal foil (1) and a second conductive metal foil (2) in parallel; the first conductive metal foil (1) and the second conductive metal foil (2) are made of different materials; the surface of the first conductive metal foil (1) is subjected to oxidation treatment, and the surface of the second conductive metal foil (2) is not subjected to oxidation treatment.
2. The double-layer metal foil coil motor according to claim 1, wherein: the coil is characterized in that a connector (3) is arranged on the central frame of the coil, and one ends of the first conductive metal foil (1) and the second conductive metal foil (2) are simultaneously connected with the connector (3) and conducted.
3. The double-layer metal foil coil motor according to claim 2, wherein: the connector (3) is a contact pin.
4. The double-layer metal foil coil motor according to claim 1, wherein: the first conductive metal foil (1) and the second conductive metal foil (2) are wound in the same direction.
5. The double-layer metal foil coil motor according to claim 1, wherein: the first conductive metal foil (1) and the second conductive metal foil (2) are equal in winding turns and length.
6. The double-layer metal foil coil motor according to claim 1, wherein: the second conductive metal foils (2) of two adjacent circles are spaced through the first conductive metal foil (1) to realize insulation.
7. The double-layer metal foil coil motor according to claim 1, wherein: the first conductive metal foil (1) and the second conductive metal foil (2) are connected and conducted at the outgoing line of the coil.
8. The double-layer metal foil coil motor according to claim 1, wherein: the first conductive metal foil (1) is an aluminum foil.
9. The double-layer metal foil coil motor according to claim 1, wherein: the second conductive metal foil (2) is a copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220598768.3U CN216929722U (en) | 2022-03-18 | 2022-03-18 | Double-layer metal foil coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220598768.3U CN216929722U (en) | 2022-03-18 | 2022-03-18 | Double-layer metal foil coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216929722U true CN216929722U (en) | 2022-07-08 |
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ID=82227278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220598768.3U Active CN216929722U (en) | 2022-03-18 | 2022-03-18 | Double-layer metal foil coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216929722U (en) |
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2022
- 2022-03-18 CN CN202220598768.3U patent/CN216929722U/en active Active
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