CN112531927A - Sandwich type motor composite magnetic conduction structure - Google Patents
Sandwich type motor composite magnetic conduction structure Download PDFInfo
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- CN112531927A CN112531927A CN202011303895.8A CN202011303895A CN112531927A CN 112531927 A CN112531927 A CN 112531927A CN 202011303895 A CN202011303895 A CN 202011303895A CN 112531927 A CN112531927 A CN 112531927A
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- magnetic
- magnetic conduction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of composite magnetic conductive motors, and discloses a sandwich type motor composite magnetic conductive structure which is characterized by comprising a magnetic conductive block and metal sheets arranged at two ends of the magnetic conductive block, wherein the magnetic conductive block is formed by extruding or sintering scrap iron or iron powder and ingredients, and the metal sheets are fixedly connected with the magnetic conductive block. Because the magnetic conduction piece forms a set of compound magnetizer or multiunit forms complete magnetic conduction structure with locating the sheetmetal at magnetic conduction piece both ends, simple structure, and the magnetic conduction piece is formed by iron fillings and batching extrusion or sintering, and the cost of iron fillings is lower, and has higher magnetic conductivity, adds the batching and makes the magnetic conduction piece have higher resistivity, and the sheetmetal also has higher resistivity to be favorable to reducing the iron loss of motor.
Description
Technical Field
The invention relates to the technical field of composite magnetic conduction motors, in particular to a sandwich type motor composite magnetic conduction structure.
Background
The motor is an electromagnetic device which realizes electric energy conversion or transmission according to an electromagnetic induction law and converts electric energy into mechanical energy, such as a shaded pole motor and the like; the motors include dc motors and ac motors, which are widely used in various electrical appliances.
Motors often have a core as the motor's magnetically conductive structure and a coil wound around the core, such as an ac core coil, where eddy current losses often occur and the alternating magnetic flux generates induced electromotive force and current, called eddy currents, in the core. The power loss generated by the eddy current is called eddy current loss, and the eddy current loss is converted into heat energy, which causes the iron core to generate heat, and brings loss and potential safety hazard.
In the prior art, metal sheets are laminated to form an iron core, and it is common to use the laminated metal sheets to reduce eddy current loss because the metal sheets have high resistivity and high permeability. The metal sheet is a silicon steel sheet, which is a silicon steel sheet used in electricians and is manufactured by a cold rolling or hot rolling process, and the sheet is relatively thin and almost only about 1mm, so the sheet is called as a thin sheet. The steel contains silicon which is 0.5 to 4.5 percent, and the steel has a certain amount of silicon, so that the resistivity and the maximum magnetic permeability of the steel are enhanced, and the steel is generally used for iron cores in transformers and generators. However, the production of the metal sheet is complicated in process, narrow in process window and high in production difficulty, and the cost of the metal sheet stacking mode is high.
Disclosure of Invention
The invention aims to provide a sandwich type motor composite magnetic conduction structure with low cost and high magnetic conductivity, and aims to solve the problem that a motor magnetic conduction structure with low cost and high magnetic conductivity is lacked in the prior art.
The invention relates to a sandwich type motor composite magnetic conduction structure, which comprises a magnetic conduction block and metal sheets arranged at two ends of the magnetic conduction block, wherein the magnetic conduction block is formed by extruding or sintering scrap iron and ingredients, the metal sheets contain iron, and the metal sheets and the magnetic conduction block are fixedly connected to form a composite magnetizer.
Furthermore, the peripheral shape of the metal sheet is consistent with that of the magnetic conduction block, and the metal sheet and the magnetic conduction block are stacked into an integral structure to form the composite magnetizer.
Further, a hollow area is arranged in the magnetic conduction block and communicated with two ends of the magnetic conduction block, a plurality of cross strips are arranged on the inner side surface of the hollow area, the cross strips are obliquely arranged, and the cross strips are arranged in a mutually crossed mode.
Furthermore, a plurality of magnetic strips arranged side by side are arranged in the hollow-out area, and two ends of each magnetic strip are respectively connected with the metal sheets at two ends of each magnetic conduction block.
Furthermore, the hollow-out area is butted by scrap iron and ingredients through extrusion or sintering.
Furthermore, the inner side of the metal sheet is provided with a fixing part for enhancing the connection strength of the metal sheet and the magnetic conduction block.
Further, the fixed part comprises a fixed bayonet, and the fixed bayonet provides centripetal tension for the metal sheet.
Further, the metal sheet is bonded with the magnetic conduction block through bonding glue.
Furthermore, the magnetic conduction block comprises two side arms and a winding section for winding the winding group; the two side arms are arranged in parallel, the winding section is arranged between the two side arms, and two ends of the winding section are correspondingly butted with the two side arms respectively; a dismounting block is arranged between the two side arms, and an installation area for installing a motor rotor structure is arranged in the dismounting block; the two sides of the disassembling block are detachably connected with the two side arms, and the disassembling block and the winding section are arranged in parallel at intervals.
Further, still include at least one intermediate metal piece in the magnetic conduction piece, intermediate metal piece and the sheetmetal becomes parallel arrangement.
Compared with the prior art, the sandwich type motor composite magnetic conduction structure provided by the invention has the advantages that the magnetic conduction block and the metal sheets arranged at the two ends of the magnetic conduction block form a sandwich type structure, the structure is simple, the magnetic conduction block is formed by extruding or sintering scrap iron and ingredients, the cost of the scrap iron is lower, the magnetic conduction block has higher magnetic conductivity, the ingredients are added, the magnetic conduction block has higher resistivity, and the metal sheets also have higher resistivity, so that the iron loss of the motor is favorably reduced.
Drawings
Fig. 1 is a schematic cross-sectional view of a sandwich-type composite magnetic conductive structure of an electric machine provided by the invention;
fig. 2 is a schematic diagram of a sandwich-type composite magnetic conductive structure of the motor provided by the invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present invention is shown.
The sandwich type motor composite magnetic conduction structure provided by the invention can be applied to a shaded pole motor, and can also be applied to other various motors and transformers which need magnetic conduction structures, and the application of the sandwich type motor composite magnetic conduction structure is not limited to a certain motor.
The compound magnetic conduction structure of motor of intermediate layer formula that this embodiment provided, magnetic conduction piece 1 with locate the sheetmetal 2 at 1 both ends of magnetic conduction piece forms compound magnetic conduction material and presss from both sides laminar structure, simple structure, and magnetic conduction piece 1 is formed by iron fillings and batching extrusion or sintering, and the cost of iron fillings is lower, and has higher magnetic permeability, adds the batching and makes magnetic conduction piece 1 have higher resistivity, and the sheetmetal contains iron, and the sheetmetal also has higher resistivity to be favorable to reducing the iron loss of motor.
The peripheral shape of the metal sheet 2 is consistent with that of the magnetic conduction block 1, and the metal sheet 2 and the magnetic conduction block 1 are stacked into an integral structure to form a composite magnetizer. The structure can replace the prior motor magnetic conduction structure formed by the laminated metal sheets 2, and can be widely applied without excessive adjustment, for example, the winding mode of the motor coil on the magnetic conduction structure does not need to be changed.
The motor magnetic conduction structure can be used as a component of a motor stator and a component of a motor rotor, and is determined according to a specific practical application field.
A hollow-out area 3 is arranged in the magnetic conduction block 1, the hollow-out area 3 is communicated with two ends of the magnetic conduction block 1, one end of the hollow-out area 3 is connected to one metal sheet 2, and the other end of the hollow-out area 3 is connected to the other metal sheet 2. The 3 medial surfaces in fretwork district are equipped with a plurality of cross strips, and the cross strip is the slope and arranges, and a plurality of cross strip intercrossing arranges, can guarantee the support intensity of magnetic conduction piece 1 through the cross strip, can not lead to warping because of setting up fretwork district 3. Be equipped with many magnetic conduction strips 31 of arranging side by side in the fretwork district 3, the one end of magnetic conduction strip 31 is connected to sheetmetal 2, and the other end is connected to another sheetmetal 2, and magnetic conduction strip 31 can be the material that the magnetic permeability is high such as iron wire, is favorable to improving the magnetic permeability of magnetic conduction piece 1. The hollow-out area 3 is in butt joint through soft magnetic alloy material extrusion or sintering, and soft magnetic alloy material is iron fillings and the material that the batching resistivity is high, the magnetic permeability is high for the structure of whole motor magnetic conduction structure is more firm, also improves its magnetic permeability simultaneously.
Be equipped with the fixed part that is used for reinforcing sheetmetal 2 and 1 joint strength of magnetic conduction piece in the inboard of sheetmetal 2, the fixed part includes a plurality of fixed bayonet 21 and locating pin, fixed bayonet 21 protrusion arranges in sheetmetal 2's medial surface, fixed bayonet 21 and 1 upper groove lock of magnetic conduction piece, for sheetmetal 2 provides centripetal tension, when the component part of motor rotor is regarded as to motor magnetic conduction structure, under the effect of fixed bayonet 21, sheetmetal 2 also is difficult for breaking away from magnetic conduction piece 1. The positioning pin is also arranged to protrude out of the inner side surface of the metal sheet, and the positioning pin is matched with the positioning hole in the magnetic conduction block 1, so that the fixed connection between the metal sheet and the magnetic conduction block 1 cannot be deviated, and the stability of the magnetic conduction structure of the motor is facilitated.
The metal sheet 2 and the magnetic conduction block 1 are stacked into an integral structure to form the composite magnetic conductor, so that the metal sheet 2 is not easy to separate from the magnetic conduction block 1, the magnetic conductivity of the whole magnetic conduction block 1 is effectively ensured, and in the sandwich type motor composite magnetic conduction structure, the metal sheets 2 with high resistivity at two ends enable the overall resistivity to be higher, thereby being beneficial to reducing the iron loss of a motor.
The metal sheet 2 can also be bonded with the magnetic conduction block 1 through adhesive glue, and the adopted adhesive glue has stronger viscosity and is not easy to fall off. The bonding process of the metal sheet 2 and the magnetic conduction block 1 is simpler, the cost is lower, and the influence on the magnetic conduction performance of the magnetic conduction structure of the motor is small.
The metal sheet 2 can also be connected to the magnetic conduction block 1 through a screw, and the screw is arranged by avoiding the iron wire of the hollow area 3, so that the resistivity of the whole motor magnetic conduction structure is not influenced.
The peripheries of the metal sheet 2 and the magnetic conduction block 1 are provided with winding parts, so that coils can be conveniently wound on the magnetic conduction structure of the motor.
In another embodiment of the sandwich type motor magnetic conduction structure, the sandwich type motor composite magnetic conduction structure comprises a magnetic conduction block 1 and metal sheets 2 arranged at two ends of the magnetic conduction block 1, wherein the magnetic conduction block 1 is formed by extruding or sintering scrap iron and ingredients, and the metal sheets 2 are fixedly connected with the magnetic conduction block 1. The magnetic conduction block 1 comprises two side arms 11 and a winding section 12 for winding a winding group; the two side arms 11 are arranged in parallel, the winding section 12 is arranged between the two side arms 11, and two ends of the winding section 12 are respectively correspondingly butted with the two side arms 11; a dismounting block 4 is arranged between the two side arms 11, and a mounting area 41 for mounting a motor rotor structure is arranged in the dismounting block 4; the two sides of the disassembling block 4 are detachably connected with the two side arms 11, and the disassembling block 4 and the winding section 12 are arranged in parallel at intervals.
In the structure, the winding section 12 and the side arm 11 are integrated, and the winding group is wound on the winding section 12, so that the magnetic circuit between the winding section 12 and the side arm 11 is ensured to be smooth, and the magnetic permeability of the motor magnetic structure is greatly improved; the disassembly block 4 and the magnetic conduction machine body are detachably connected, so that the winding operation of the winding section 12 is facilitated, and the subsequent assembly of the magnetic conduction structure of the motor is facilitated.
The disassembly block 4 is provided with an outer side surface facing the side arm 11, and the outer side surface of the disassembly block 4 protrudes outwards to form an embedded convex block; the side arm 11 has an inner side surface facing the detaching block 4, and the inner side surface of the side arm 11 is inwards recessed to form an embedded groove 111; after the detaching block 4 is placed between the two side arms 11, the embedding convex block of the detaching block 4 is embedded into the embedding groove 111 of the side arm 11, and the outer side surface of the detaching block 4 is butted and jointed with the inner side surface of the side arm 11. Thus, after the disassembly block 4 is matched with the side arm 11, an integral structure is formed between the disassembly block 4 and the side arm 11, and the magnetic permeability from the side arm 11 to the disassembly block 4 is greatly improved.
In the compound magnetic conduction structure of intermediate layer formula motor, can also form one or more compound magnetizers including at least one intermediate metal sheet in the magnetic conduction piece 1, intermediate metal sheet becomes parallel arrangement with the sheetmetal 2 at both ends, forms the compound magnetic conduction structure of many intermediate layers formula motor for the magnetic permeability of motor magnetic conduction structure, resistivity are all higher, are favorable to reducing the iron loss of motor. The middle of the middle metal sheet can comprise a hollow structure, so that the magnetic conduction blocks separated by the middle metal sheet can form a whole through the hollow structure. Or the middle of the middle metal sheet does not have a hollow structure, the upper magnetic conduction block and the lower magnetic conduction block are stacked and connected with the middle metal sheet, and then stacked and connected with the metal sheets at the two ends, so that a composite magnetic conduction structure can be formed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Sandwich type's compound magnetic conduction structure of motor, its characterized in that includes the magnetic conduction piece and locates the sheetmetal at magnetic conduction piece both ends, the magnetic conduction piece is formed by iron fillings and batching extrusion or sintering, the sheetmetal contains iron, the sheetmetal with magnetic conduction piece fixed connection forms compound magnetic conduction material.
2. The sandwich-type electric machine composite magnetic conducting structure according to claim 1, wherein the metal sheet has an outer peripheral shape conforming to the outer peripheral shape of the magnetic conducting block, and the metal sheet and the magnetic conducting block are stacked to form one or more composite magnetic conducting materials.
3. The sandwich-type composite magnetic conductive structure of an electric motor according to claim 1, wherein the magnetic conductive block is provided with a hollow area therein, the hollow area is communicated with both ends of the magnetic conductive block, an inner side surface of the hollow area is provided with a plurality of cross bars, the cross bars are arranged in an inclined manner, and the plurality of cross bars are arranged in a cross manner.
4. The sandwich-type composite magnetic conductive structure of the motor according to claim 3, wherein a plurality of magnetic conductive strips arranged side by side are arranged in the hollow area, and two ends of the magnetic conductive strips are respectively connected with the metal sheets at two ends of the magnetic conductive blocks.
5. The sandwich-type composite magnetic conducting structure for the motor according to claim 4, wherein the hollow-out areas are butted by extruding or sintering scrap iron and ingredients.
6. The sandwich-type composite magnetic conducting structure for an electric machine according to claim 1, wherein the inner side of the metal sheet is provided with a fixing part for enhancing the connection strength between the metal sheet and the magnetic conducting block.
7. The sandwich-type composite magnetic conductive structure of an electric machine according to claim 6, wherein the fixing portion comprises a fixing bayonet which provides a centripetal pulling force to the metal sheet.
8. The sandwich-type electric machine composite magnetic permeable structure according to claim 1, wherein the metal sheet is bonded to the magnetic permeable block by an adhesive glue.
9. The sandwich-type electric machine composite magnetic conducting structure according to claim 1, wherein the magnetic conducting block comprises two side arms and a winding section wound around the winding group; the two side arms are arranged in parallel, the winding section is arranged between the two side arms, and two ends of the winding section are correspondingly butted with the two side arms respectively; a dismounting block is arranged between the two side arms, and an installation area for installing a motor rotor structure is arranged in the dismounting block; the two sides of the disassembling block are detachably connected with the two side arms, and the disassembling block and the winding section are arranged in parallel at intervals.
10. The sandwich type electric machine composite magnetic conducting structure according to any one of claims 1 to 9, characterized in that the magnetic conducting block further comprises at least one intermediate metal sheet, and the intermediate metal sheet is arranged in parallel with the metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011303895.8A CN112531927B (en) | 2020-11-19 | 2020-11-19 | Sandwich type motor composite magnetic conduction structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011303895.8A CN112531927B (en) | 2020-11-19 | 2020-11-19 | Sandwich type motor composite magnetic conduction structure |
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| CN112531927A true CN112531927A (en) | 2021-03-19 |
| CN112531927B CN112531927B (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011303895.8A Active CN112531927B (en) | 2020-11-19 | 2020-11-19 | Sandwich type motor composite magnetic conduction structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0272603A (en) * | 1988-09-08 | 1990-03-12 | Tamagawa Seiki Co Ltd | Core |
| US5397530A (en) * | 1993-04-26 | 1995-03-14 | Hoeganaes Corporation | Methods and apparatus for heating metal powders |
| CN1461089A (en) * | 2003-06-18 | 2003-12-10 | 夏先斌 | Motor electric equipment made up by using soft magnetic composite material |
| CN200959079Y (en) * | 2006-09-30 | 2007-10-10 | 王晓庭 | Clock |
| CN205123428U (en) * | 2015-10-22 | 2016-03-30 | 珠海格力电器股份有限公司 | Stator core structure assembly, motor, compressor and air conditioner |
| CN207184175U (en) * | 2017-09-13 | 2018-04-03 | 吴杰宏 | A kind of Novel shade-pole motor turns stator |
| CN209823519U (en) * | 2019-04-29 | 2019-12-20 | 曹颂 | Low-frequency magnetic-conductive integrated soft magnetic alloy structure |
-
2020
- 2020-11-19 CN CN202011303895.8A patent/CN112531927B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0272603A (en) * | 1988-09-08 | 1990-03-12 | Tamagawa Seiki Co Ltd | Core |
| US5397530A (en) * | 1993-04-26 | 1995-03-14 | Hoeganaes Corporation | Methods and apparatus for heating metal powders |
| CN1461089A (en) * | 2003-06-18 | 2003-12-10 | 夏先斌 | Motor electric equipment made up by using soft magnetic composite material |
| CN200959079Y (en) * | 2006-09-30 | 2007-10-10 | 王晓庭 | Clock |
| CN205123428U (en) * | 2015-10-22 | 2016-03-30 | 珠海格力电器股份有限公司 | Stator core structure assembly, motor, compressor and air conditioner |
| CN207184175U (en) * | 2017-09-13 | 2018-04-03 | 吴杰宏 | A kind of Novel shade-pole motor turns stator |
| CN209823519U (en) * | 2019-04-29 | 2019-12-20 | 曹颂 | Low-frequency magnetic-conductive integrated soft magnetic alloy structure |
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| Publication number | Publication date |
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| CN112531927B (en) | 2022-10-11 |
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Effective date of registration: 20220915 Address after: Room 1209B10, International Chamber of Commerce Center, No. 168, Fuhua 3rd Road, Fuan Community, Futian Street, Futian District, Shenzhen, Guangdong 518000 Applicant after: Shenzhen Songhui Technology Research and Development Co.,Ltd. Address before: 518001 Room 401, building 5, Huangbeiling mall, Xinxiu Road, Huangbei street, Luohu District, Shenzhen City, Guangdong Province Applicant before: Shenzhen Songhui Technology Development Co.,Ltd. |
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