CN213366179U - Self-adhesive corona-resistant enameled wire and refrigerator compressor motor - Google Patents
Self-adhesive corona-resistant enameled wire and refrigerator compressor motor Download PDFInfo
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- CN213366179U CN213366179U CN202022182608.4U CN202022182608U CN213366179U CN 213366179 U CN213366179 U CN 213366179U CN 202022182608 U CN202022182608 U CN 202022182608U CN 213366179 U CN213366179 U CN 213366179U
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Abstract
The utility model discloses a self-adhesive corona-resistant enameled wire and refrigerator compressor motor, which comprises a conductor, wherein a primer layer, a finish paint layer, a self-adhesive layer and a surface lubricating layer are sequentially arranged on the outer circumference of the conductor from inside to outside; the thicknesses of the primer layer, the finish paint layer, the self-adhesive layer and the surface lubricating layer are gradually reduced, the primer layer, the finish paint layer and the self-adhesive layer are all of thin film structures, and the contact surfaces of the thin film structures are all arranged in a rough surface mode and are provided with densely distributed concave points or convex points; the surface lubricating layer is a lubricant coated outside the self-adhesive layer; the self-adhesive corona-resistant enameled wire has good insulating property and bonding property, can reduce the negative influence caused by partial discharge in a gas or liquid medium, and simultaneously, the outer self-adhesive layer plays a good role in protecting the basic insulating layer of the inner layer of the corona-resistant enameled wire, and the lower coil inserting rate of the stator winding damaged on the coil inserting insulating layer is also reduced.
Description
Technical Field
The utility model relates to compressor motor technical field, concretely relates to corona-resistant enameled wire of self-adhesive and refrigerator compressor motor.
Background
In recent years, the competition of the refrigerator and freezer compressor industry is extremely intense, and companies have hundreds of ways to improve the product quality and reduce the product cost to improve the product competitiveness. The motor is the most core part in the compressor, the cost of the motor exceeds 50% of the total cost of the compressor, the electrical safety performance is the most important performance index of the compressor and must meet the relevant national and international safety standards, so the competition of the ice pressure motor is the greatest importance in the industry of the refrigerator and freezer compressors. In the manufacturing process of the motor, the electrical insulation strength, the turn-to-turn voltage resistance and the electrical safety size of the shaped winding are always controlled as key items, and a large amount of manpower and detection equipment are input. However, as the refrigerator compressor is increasingly miniaturized and highly efficient, higher requirements are provided for the motor, the size of a stator core of the motor and the size of a coil are required to be smaller, the full rate of the coil inserting groove is higher, and a large amount of phenomena of line damage, line breakage and groove leakage are caused in the manufacturing process of the motor, so that more operators are required to perform full detection reworking on a fault machine, the manufacturing cost is increased, and great difficulty and risk are brought to the control of the motor manufacturing process. Therefore, enameled wires with better performance are needed to manufacture stator coils.
For example, a self-adhesive wire for a high-temperature-resistant compressor is disclosed in 2018 of a Chinese utility model patent (publication number: CN208093231U), which belongs to the field of enameled wires, and the technical scheme is as follows, the self-adhesive wire comprises a metal wire, an insulating layer outside the metal wire and a self-adhesive layer outside the insulating layer, a heat-resistant layer is arranged between the insulating layer and the self-adhesive layer, a bonding layer is arranged between the heat-resistant layer and the self-adhesive layer, and a protective layer is arranged outside the self-adhesive layer; this self-adhesive line has the advantage that prevents electromagnetism self-adhesive line and damage because of high temperature, but the thickness of protective layer and protection subsides is great, influences holistic radial dimension, need tear when using moreover, and is more troublesome.
Disclosure of Invention
The utility model aims at providing a self-adhesive corona-resistant enameled wire and refrigerator compressor motor to the problem that prior art exists.
In order to achieve the above object, the utility model adopts the following technical scheme:
a self-adhesive corona-resistant enameled wire comprises a conductor, wherein a primer layer, a finish paint layer, a self-adhesive layer and a surface lubricating layer are sequentially arranged on the outer circumference of the conductor from inside to outside; the thicknesses of the primer layer, the finish paint layer, the self-adhesive layer and the surface lubricating layer are gradually reduced, the primer layer, the finish paint layer and the self-adhesive layer are all of thin film structures, and the contact surfaces of the thin film structures are all arranged in a rough surface mode and are provided with densely distributed concave points or convex points; the surface lubricating layer is a lubricant coated outside the self-adhesive layer.
The self-adhesive corona-resistant enameled wire can form an insulated enameled wire with higher strength and a self-adhesive function through the arrangement of the primer layer, the finish paint layer, the self-adhesive layer and the surface lubricating layer, can simplify the manufacturing process of a stator winding, and saves a binding process; the primer layer is a basic insulating layer and plays a main insulating role, and the finish paint layer is a corona-resistant layer, so that negative effects caused by partial discharge in a gas or liquid medium can be reduced, and the service life of the enameled wire is prolonged.
Compared with the common enameled wire, the enameled wire adopting the structure improves the electrical insulation strength of the stator winding, widens the allowance for increasing the forming size of the stator winding, thus reducing the pressure of the stator shaping process and reducing the lower coil rate of the stator winding caused by the damage (line damage and line breakage) of the insulation layer; meanwhile, the corona-resistant layer in the middle of the enameled wire and the outer self-adhesive layer have a good protection effect on the basic insulating layer of the inner layer, and the lower rate of the stator winding when the wire-embedded insulating layer is damaged (wire damage and wire breakage) is also reduced; the lower rate in the production process is reduced, the total inspection can be reduced, the number of working procedure operators is reduced, and the manufacturing cost is reduced. The utility model discloses both reduced motor manufacturing cost, improved the quality of motor again, can extensively promote in refrigerator compressor motor manufacturing.
The thicknesses of the primer layer, the finish paint layer, the self-adhesive layer and the surface lubricating layer are reduced layer by layer, so that the interlayer thickness is hierarchical, and self-adhesion can be formed under the condition of ensuring good insulating performance; the finish paint layer also has the insulating ability in the setting of self-adhesive layer, can reduce its individual layer thickness when guaranteeing its self-adhesion performance and total insulation thickness requirement.
The friction force between layers can be increased by arranging the rough surface, so that the coating is convenient to adhere; the arrangement of the concave points and the convex points has good deformation and bonding space in the process of heating self-adhesion, and is favorable for improving the overall wrapping effect.
Further, the priming paint layer is a polyester imide layer, the finish paint layer is a polyamide imide layer, the self-adhesive layer is an aromatic polyamide layer, and the surface lubricating layer is a coated synthetic wax layer.
Further, the thickness of the primer layer is 0.6-0.9 mm.
Further, the thickness of the finish paint layer is 0.45-0.6 mm.
Furthermore, the thickness of the self-adhesive layer is 0.36-0.5 mm.
Furthermore, the thickness of the surface lubricating layer is 0.05-0.3 mm. The thickness of the surface lubricating layer can be set to be thin, and good line-to-line lubrication effect is provided in the winding process; in the heating self-adhesion process, along with the rise of temperature, the surface lubricating layer can be rapidly melted, so that the adhesion between the self-adhesion layers is facilitated, and the influence on the self-adhesion process is reduced.
Further, the conductor is a copper wire or an aluminum wire.
Furthermore, the pits and the bumps are distributed on two sides of the thin film structure, and the sizes of the pits and the bumps are smaller than 0.05 mm.
Further, the enamelled wire is wound on a stator winding of the refrigerator compressor motor.
The original stator production technology needs to bind and fix the winding coil after the coil inserting and shaping, and prevents the unqualified electrical safety performance caused by the position change of the winding coil due to external force. By adopting the self-adhesive corona-resistant enameled wire, after wire embedding and shaping, the winding is subjected to power-on heating by a lead component process, so that the self-adhesive layer is rapidly bonded and is firmly formed after cooling, and the effect of firmer binding compared with the original binding is achieved.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the self-adhesive corona-resistant enameled wire can form an insulated enameled wire with higher strength and a self-adhesive function through the arrangement of the primer layer, the finish paint layer, the self-adhesive layer and the surface lubricating layer, can simplify the manufacturing process of a stator winding, and saves a binding process; 2. the enameled wire with the structure improves the electrical insulation strength of the stator winding, widens the allowance for increasing the forming size of the stator winding, thus reducing the pressure of the stator shaping process and reducing the coil inserting rate of the stator winding caused by the damage (line damage and line breakage) of the insulation layer; 3. the primer layer is a basic insulating layer and plays a main insulating role, the middle corona-resistant layer and the outer self-adhesive layer play a good role in protecting the basic insulating layer of the inner layer, and the lower line rate of the stator winding when the embedded wire insulating layer is damaged (line damage and line breakage) is also reduced; 4. the friction force between layers can be increased by arranging the rough surface, so that the coating is convenient to adhere; the arrangement of the concave points and the convex points has good deformation and bonding space in the process of heating self-adhesion, and is favorable for improving the overall wrapping effect.
Drawings
Fig. 1 is a schematic view of a radial cross-sectional structure of a self-adhesive corona-resistant enameled wire according to the present invention;
fig. 2 is a schematic structural diagram between layers of a self-adhesive corona-resistant enameled wire according to the present invention;
in the figure: 1. a conductor; 2. a primer layer; 3. a finish paint layer; 4. a self-adhesive layer; 5. a surface lubricating layer; 6. concave points; 7. and (4) bumps.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the self-adhesive corona-resistant enameled wire comprises a conductor 1, wherein a primer layer 2, a finish paint layer 3, a self-adhesive layer 4 and a surface lubricating layer 5 are sequentially arranged on the outer circumference of the conductor 1 from inside to outside; the thicknesses of the primer layer 2, the finish paint layer 3, the self-adhesive layer 4 and the surface lubricating layer 5 are arranged in a layer-by-layer decreasing mode, the primer layer 2, the finish paint layer 3 and the self-adhesive layer 4 are all of thin film structures, and contact surfaces of the thin film structures are all arranged in a rough surface mode and are provided with densely distributed concave points 6 or convex points 7; the surface lubricating layer 5 is a lubricant coated outside the self-adhesive layer.
The self-adhesive corona-resistant enameled wire can form an insulated enameled wire with higher strength and a self-adhesive function through the arrangement of the primer layer 2, the finish paint layer 3, the self-adhesive layer 4 and the surface lubricating layer 5, so that the manufacturing process of a stator winding can be simplified, and a binding process is omitted; the priming paint layer 2 is a basic insulating layer and plays a main insulating role, and the finishing paint layer 3 is a corona-resistant layer, so that the negative influence generated by partial discharge in a gas or liquid medium can be reduced, and the service life of the enameled wire is prolonged.
Compared with the common enameled wire, the enameled wire adopting the structure improves the electrical insulation strength of the stator winding, widens the allowance for increasing the forming size of the stator winding, thus reducing the pressure of the stator shaping process and reducing the lower coil rate of the stator winding caused by the damage (line damage and line breakage) of the insulation layer; meanwhile, the corona-resistant layer in the middle of the enameled wire and the outer self-adhesive layer 4 play a good role in protecting the basic insulating layer of the inner layer, and the lower rate of the stator winding when the wire-embedded insulating layer is damaged (wire damage and wire breakage) can be reduced; the lower rate in the production process is reduced, the total inspection can be reduced, the number of working procedure operators is reduced, and the manufacturing cost is reduced. The utility model discloses both reduced motor manufacturing cost, improved the quality of motor again, can extensively promote in refrigerator compressor motor manufacturing.
The thicknesses of the primer layer 2, the finish paint layer 3, the self-adhesive layer 4 and the surface lubricating layer 5 are reduced layer by layer, so that the interlayer thickness is hierarchical, and self-adhesiveness can be formed under the condition of ensuring good insulating performance; the finish paint layer 3 and the self-adhesive layer 4 also have insulating capacity, and the thickness of a single layer can be reduced while the self-adhesive performance and the total insulation thickness are ensured.
The friction force between layers can be increased by arranging the rough surface, so that the coating is convenient to adhere; the arrangement of the concave points 6 and the convex points 7 has good deformation and bonding space in the process of heating self-adhesion, and is favorable for improving the overall wrapping effect.
Further, the primer layer 2 is a polyester imide layer, the finish paint layer 3 is a polyamide imide layer, the self-adhesive layer 4 is an aromatic polyamide layer, and the surface lubricating layer 5 is a coated synthetic wax layer.
The thickness of the surface lubricating layer 5 can be set to be thin, so that a good line-to-line lubricating effect is provided in the winding process; in the process of heating self-adhesion, along with the rise of temperature, the surface lubricating layer 5 can be rapidly melted, so that the adhesion between the self-adhesion layers is facilitated, and the influence on the self-adhesion process is reduced.
Further, or aluminum wire.
Furthermore, the pits 6 and the bumps 7 are distributed on two sides of the thin film structure.
The first embodiment is as follows:
referring to fig. 1, the conductor 1 is a copper wire, and a polyester imide layer, a polyamide imide layer, an aromatic polyamide layer and synthetic wax are sequentially disposed on an outer circumference of the copper wire from inside to outside.
The thickness of the polyester imide layer is 0.6 mm.
The thickness of the polyamideimide layer is 0.45 mm.
The thickness of the aromatic polyamide layer was 0.36 mm.
Further, the synthetic wax coating was 0.1mm thick.
The size of the concave points and the size of the convex points are both 0.05mm
The enameled wire adopting the structure has clear layers and good insulating property and winding property.
Example two:
referring to fig. 1, the conductor 1 is a copper wire, and a polyester imide layer, a polyamide imide layer, an aromatic polyamide layer and synthetic wax are sequentially disposed on an outer circumference of the copper wire from inside to outside.
The thickness of the polyester imide layer is 0.9 mm.
The thickness of the polyamideimide layer is 0.58 mm.
The thickness of the aromatic polyamide layer was 0.45 mm.
Further, the synthetic wax coating was 0.3mm thick.
The size of the concave points and the size of the convex points are both 0.03mm
The enameled wire with the structure can be used for copper wires with thick wire diameters, the insulating layer and the corona-resistant layer are thicker, the sizes of the salient points and the concave points are smaller, the number of the salient points and the concave points is larger, and the bonding effect of the bonding layer is more obvious.
Example three:
referring to fig. 1, the conductor 1 is a copper wire, and a polyester imide layer, a polyamide imide layer, an aromatic polyamide layer and synthetic wax are sequentially disposed on an outer circumference of the copper wire from inside to outside.
The thickness of the polyester imide layer is 0.7 mm.
The thickness of the polyamideimide layer is 0.5 mm.
The thickness of the aromatic polyamide layer was 0.48 mm.
Further, the synthetic wax coating was 0.3mm thick.
The size of the concave points and the size of the convex points are both 0.05mm
The thickness of the enameled wire insulating layer and the thickness of the corona-resistant layer adopting the structure are relatively close, and the polyamide-imide and the aromatic polyamide have bonding capacity at high temperature, and meanwhile, the polyester-imide layer can be protected and a good insulating effect can be formed together.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A self-adhesive corona-resistant enameled wire comprises a conductor, and is characterized in that a primer layer, a finish paint layer, a self-adhesive layer and a surface lubricating layer are sequentially arranged on the outer circumference of the conductor from inside to outside; the thicknesses of the primer layer, the finish paint layer, the self-adhesive layer and the surface lubricating layer are gradually reduced, the primer layer, the finish paint layer and the self-adhesive layer are all of thin film structures, and the contact surfaces of the thin film structures are all arranged in a rough surface mode and are provided with densely distributed concave points or convex points; the surface lubricating layer is a lubricant coated outside the self-adhesive layer.
2. The self-bonding corona-resistant enameled wire according to claim 1, wherein the primer layer is a polyester imide layer, the topcoat layer is a polyamide imide layer, the self-bonding layer is an aromatic polyamide layer, and the surface lubrication layer is a coated synthetic wax layer.
3. The self-adhesive corona-resistant enameled wire according to claim 1, wherein the thickness of the primer layer is 0.6-0.9 mm.
4. The self-adhesive corona-resistant enameled wire according to claim 1, wherein the thickness of the finish paint layer is 0.45-0.6 mm.
5. The self-adhesive corona-resistant enameled wire according to claim 1, wherein the thickness of the self-adhesive layer is 0.36-0.5 mm.
6. The self-adhesive corona-resistant enameled wire according to claim 1, wherein the thickness of the surface lubricating layer is 0.05-0.3 mm.
7. The self-adhesive corona-resistant enameled wire according to claim 1, wherein the conductor is a copper wire or an aluminum wire.
8. The self-adhesive corona-resistant enameled wire according to claim 1, wherein the pits and the bumps are distributed on both sides of the thin film structure, and the size of each pit and each bump is less than 0.05 mm.
9. The refrigerator compressor motor with the self-adhesive corona-resistant enameled wire according to any one of claims 1 to 8, characterized in that the enameled wire is wound on a stator winding of the refrigerator compressor motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022182608.4U CN213366179U (en) | 2020-09-29 | 2020-09-29 | Self-adhesive corona-resistant enameled wire and refrigerator compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022182608.4U CN213366179U (en) | 2020-09-29 | 2020-09-29 | Self-adhesive corona-resistant enameled wire and refrigerator compressor motor |
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| Publication Number | Publication Date |
|---|---|
| CN213366179U true CN213366179U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022182608.4U Active CN213366179U (en) | 2020-09-29 | 2020-09-29 | Self-adhesive corona-resistant enameled wire and refrigerator compressor motor |
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| CN (1) | CN213366179U (en) |
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