CN212303262U - Reliable insulating samarium cobalt permanent magnet integrated configuration - Google Patents
Reliable insulating samarium cobalt permanent magnet integrated configuration Download PDFInfo
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- CN212303262U CN212303262U CN202021529951.5U CN202021529951U CN212303262U CN 212303262 U CN212303262 U CN 212303262U CN 202021529951 U CN202021529951 U CN 202021529951U CN 212303262 U CN212303262 U CN 212303262U
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- integrated configuration
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Abstract
The utility model discloses a reliable insulating samarium cobalt permanent magnet integrated configuration belongs to permanent magnet technical field: the samarium-cobalt permanent magnet combined structure is composed of a plurality of unit magnets (1), an adhesive layer (2) and an insulating layer (3) are arranged between every two unit magnets (1), and the insulating layer (3) is arranged on the surface of the samarium-cobalt permanent magnet combined structure; the utility model discloses a samarium cobalt permanent magnet integrated configuration, the insulating nature between each unit magnet is showing and is improving, can reach complete insulation to guarantee the reliability of permanent-magnet machine operation.
Description
Technical Field
The utility model relates to a permanent magnet technical field especially relates to a reliable insulating samarium cobalt permanent magnet integrated configuration.
Background
For a permanent magnet motor running at a high speed, the eddy current loss generated by the high-speed running of the permanent magnet motor causes the temperature of a permanent magnet loaded on a motor rotor to rise, and the temperature exceeds 200 ℃. The temperature rise of the permanent magnet can cause the permanent magnet to be demagnetized, which becomes a key factor influencing the reliable operation of the permanent magnet motor.
Samarium cobalt magnets require insulation treatment because samarium cobalt materials have a higher electrical conductivity than neodymium iron boron materials. The method can reduce the eddy current loss of the magnet by bonding a plurality of unit magnets together and insulating the bonded small magnets. The conventional samarium-cobalt permanent magnet combined structure is formed by mutually and directly bonding a plurality of unit magnets, so that the integral size of the bonded magnets cannot meet the requirement of high precision; moreover, as the bonding layer may be mixed with conductive substances, the insulation between the bonded whole magnets is not reliable, thereby affecting the operation reliability of the permanent magnet motor.
Disclosure of Invention
An object of the utility model is to provide a reliable insulating samarium cobalt permanent magnet integrated configuration to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a samarium cobalt permanent magnet integrated configuration of reliable insulation, samarium cobalt permanent magnet integrated configuration comprises several unit magnet, several there are adhesive bond and insulating layer between two liang of unit magnet integrated configuration's surface has the insulating layer in addition.
As a preferred technical scheme: the adhesive layer is high-temperature adhesive. The high-temperature adhesive can ensure the stability of the adhesive layer in a high-temperature environment.
As a preferred technical scheme: the insulating layer is an epoxy paint layer.
The preparation method of the permanent magnet composite structure comprises the following steps:
(1) cleaning the surfaces of the unit magnets to be bonded to ensure that the surfaces of the unit magnets are free of oil stains and magnetic powder;
(2) the cleaned surface of the unit magnet is subjected to electrophoresis treatment, electrophoresis epoxy paint or other insulating paint, and other insulating substances can be sprayed;
(3) uniformly coating an adhesive on the bonding surfaces of the unit magnets, forming an adhesive layer between the two unit magnets, wherein the adhesive is preferably a high-temperature-resistant adhesive, the use temperature can reach 250 ℃, and the high-temperature-resistant adhesive is known in the prior art; the thickness of the adhesive layer is adjustable, and the thickness range is 10-100 mu m;
(4) placing the unit magnets coated with the adhesive on a fixture, compacting the magnets by the fixture, and adjusting the positions among the magnets;
(5) the magnet with the well adjusted position is solidified according to the requirement;
(6) the magnet can be checked and delivered after being solidified; for the magnet with high requirements on appearance and dimensional accuracy, secondary grinding is carried out after curing, and the magnet is processed to a target size;
(7) the processed magnet is subjected to surface electrophoresis treatment, electrophoresis epoxy paint or other insulating paint, and other insulating substances can be sprayed.
The samarium cobalt permanent magnet combined structure prepared by the method has the advantages that the insulation reliability among all unit magnets is obviously improved, and the size and the shape of a bonded product can be ensured due to secondary grinding.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a samarium cobalt permanent magnet integrated configuration, the insulating nature between each unit magnet is showing and is improving, can reach complete insulation to guarantee the reliability of permanent-magnet machine operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a unit magnet; 2. bonding the adhesive layer; 3. an insulating layer.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example (b):
referring to fig. 1, the samarium-cobalt permanent magnet combined structure is composed of a plurality of unit magnets 1, an adhesive layer 2 and an insulating layer 3 are arranged between every two unit magnets 1, and the adhesive layer 2 in this embodiment is a high temperature resistant adhesive; the surface of the samarium-cobalt permanent magnet combined structure is also provided with an insulating layer 3, and the insulating layer 3 is an epoxy paint layer;
the preparation method of the permanent magnet composite structure comprises the following steps:
(1) cleaning the surfaces of the unit magnets to be bonded to ensure that the surfaces of the unit magnets are free of oil stains and magnetic powder;
(2) the cleaned surface of the unit magnet is subjected to electrophoresis treatment, electrophoresis epoxy paint or other insulating paint, and other insulating substances can be sprayed;
(3) uniformly coating an adhesive on the bonding surfaces of the unit magnets, forming an adhesive layer between the two unit magnets, wherein the adhesive is preferably a high-temperature-resistant adhesive, the use temperature can reach 250 ℃, and the high-temperature-resistant adhesive is known in the prior art; the thickness of the adhesive layer is adjustable, and the thickness range is 10-100 mu m;
(4) placing the unit magnets coated with the adhesive on a fixture, compacting the magnets by the fixture, and adjusting the positions among the magnets;
(5) the magnet with the well adjusted position is solidified according to the requirement;
(6) the magnet can be checked and delivered after being solidified; for the magnet with high requirements on appearance and dimensional accuracy, secondary grinding is carried out after curing, and the magnet is processed to a target size;
(7) the processed magnet is subjected to surface electrophoresis treatment, electrophoresis epoxy paint or other insulating paint, and other insulating substances can be sprayed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a reliable insulating samarium cobalt permanent magnet integrated configuration which characterized in that: samarium cobalt permanent magnet integrated configuration comprises several unit magnet (1), several there are bonding glue film (2) and insulating layer (3) unit magnet (1) two liang between the surface of samarium cobalt permanent magnet integrated configuration insulating layer (3) in addition.
2. The reliably-insulated samarium-cobalt permanent magnet composite structure of claim 1, wherein: the adhesive layer (2) is high-temperature adhesive.
3. The reliably-insulated samarium-cobalt permanent magnet composite structure of claim 1, wherein: the insulating layer (3) is an epoxy paint layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021529951.5U CN212303262U (en) | 2020-07-29 | 2020-07-29 | Reliable insulating samarium cobalt permanent magnet integrated configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021529951.5U CN212303262U (en) | 2020-07-29 | 2020-07-29 | Reliable insulating samarium cobalt permanent magnet integrated configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212303262U true CN212303262U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021529951.5U Active CN212303262U (en) | 2020-07-29 | 2020-07-29 | Reliable insulating samarium cobalt permanent magnet integrated configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212303262U (en) |
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2020
- 2020-07-29 CN CN202021529951.5U patent/CN212303262U/en active Active
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