CN114123564A - Insulating skeleton and motor - Google Patents
Insulating skeleton and motor Download PDFInfo
- Publication number
- CN114123564A CN114123564A CN202111263193.6A CN202111263193A CN114123564A CN 114123564 A CN114123564 A CN 114123564A CN 202111263193 A CN202111263193 A CN 202111263193A CN 114123564 A CN114123564 A CN 114123564A
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- CN
- China
- Prior art keywords
- insulating
- stator
- hollow
- main body
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Abstract
The invention relates to an insulation framework and a motor using the same, wherein the insulation framework comprises a main body annular part and N radially extending hollow insulation cylinders uniformly arranged along the circumferential direction of the outer side of the main body annular part, one end of each hollow insulation cylinder far away from the main body annular part is provided with an end part blocking piece protruding out of the peripheral surface of the hollow insulation cylinder, and N is an integral multiple of the phase number N of the motor. The motor comprises a stator and an outer rotor which is coaxially arranged with the stator and positioned on the outer side of the stator, wherein the stator is provided with the insulating framework and an iron core sealed in a hollow insulating cylinder. The insulating framework provided by the invention has the advantages that the use of insulating paper is omitted in the process, the production process is simplified, the insulating property of the stator is improved, the height of the stator is reduced, the matched outer rotor is matched, the height of the motor is reduced, the volume power is improved, and the actual installation requirement is met.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an insulating framework and a motor with the insulating framework.
Background
The motor is widely applied to the field of various household appliances as a power device of a rotating part, on the range hood, the fan is driven to rotate by the permanent magnet synchronous variable frequency motor to extract indoor oil smoke outdoors, the installation space of the motor is compressed by the requirement on miniaturization and light weight of the electric appliance, and motor products with small volume, high power and high volume power need to be developed for the purpose.
The existing motor products all generate a changing magnetic field through coils wound on an iron core, so that a rotor is driven to rotate. In order to avoid potential safety risks caused by energy loss and increased heat generation of the iron core, insulation of the iron core is generally realized by laying insulation paper between the iron core and the coil during production, so that the winding process is complicated, the insulation paper can be folded and shifted in the winding process, the insulation effect is reduced, insulation failure of the insulation paper can be caused by wrong use methods, and the two potential safety risks can be caused.
Disclosure of Invention
In view of the above problems in the prior art, the present invention is directed to an insulating bobbin and a motor having the same.
The technical scheme of the invention is as follows:
the utility model provides an insulating skeleton, includes main part annular portion and follows the even N radial extension's of setting of main part annular portion outside circumference cavity insulator cylinder, the one end that main part annular portion was kept away from to the cavity insulator cylinder is provided with the salient the tip separation blade of cavity insulator cylinder outer peripheral face, wherein N is the integral multiple of motor phase number N.
Specifically, the main body annular part is further provided with a front blocking piece extending to the front side along the outer peripheral surface of the main body annular part and a back blocking piece extending to the back side, the main body annular part is further provided with an inner blocking piece extending to the front side along the inner peripheral surface of the main body annular part, and a lead channel is formed between the front blocking piece and the inner blocking piece.
Specifically, two wire passing openings are formed in the position, between two adjacent hollow insulating cylinders, of the front blocking piece, and a lead slot is formed in the inner blocking piece.
Preferably, the front baffle plate is provided with a layered wire passing structure, and the layered wire passing structure is formed by periodically and repeatedly winding the basic unit around the front baffle plate; the basic unit spans n hollow insulating cylinders and comprises wire passing grooves, wherein one wire passing groove is formed in each of two sides of each hollow insulating cylinder, the wire passing grooves in two sides of the same hollow insulating cylinder are equal in height, and the height of the wire passing grooves in two sides of different insulating cylinders is arranged in a gradient sequence.
Specifically, the inner side surface of the main body annular part is uniformly distributed with at least three fixed seats, and the fixed seats are provided with mounting holes parallel to the axis of the main body annular part.
Specifically, main part annular portion is provided with inlet wire board and outlet plate on the medial surface between adjacent fixing base, all be provided with the binding post mount pad on inlet wire board and the outlet plate.
The motor comprises a stator and an outer rotor which is coaxially arranged with the stator and positioned outside the stator, wherein the stator is provided with the insulating framework and an iron core sealed in the hollow insulating cylinder.
Specifically, the number N of motor phases of the motor is 3, and the number N of hollow insulating cylinders is 12.
According to the invention, through the iron core containing cavity and the specially arranged lead containing cavity which are arranged on the insulating framework, the height reduction of iron core insulation and a stator is realized while insulating paper is cancelled and the production process is simplified, and the height reduction of a motor is realized by matching with a matched outer rotor, so that the volume power is improved, and the actual installation requirement is met.
Drawings
FIG. 1 is a schematic front view of an insulating frame according to the present invention;
FIG. 2 is a schematic view of the back side of an insulating bone according to the present invention;
FIG. 3 is a schematic view of a layered wire-passing structure according to the present invention;
fig. 4 is a schematic view of the motor of the present invention.
In the figure:
1 a body annular portion; 2, a hollow insulating cylinder; 3, fixing a base;
11 a front baffle plate; 12 a back blocking sheet; 13 inner side blocking pieces;
21 an end stop; 22 a core receptacle;
31 mounting holes;
41 a wire inlet plate; 42 outlet plates; 43 terminal mounting seats; 44 mounting posts;
a1 coil winding area; a2 lead channel; a3 layered wire passing structure; a4 lead slot;
a31 first phase line trough; a32 second phase line channel; a33 third phase wire passing groove;
s1 outside surface of the annular part of the main body; a PN basic unit;
a P1 stator; p2 outer rotor; p3 protective cover.
Detailed Description
The present invention is described in detail below with reference to the drawings and specific embodiments, wherein components having the same name or reference number represent the same or similar structures and are only for illustrative purposes.
Fig. 1 is a schematic front view of an insulating frame according to the present invention. The insulation framework is characterized in that N radially extending hollow insulation cylinders 2 are uniformly arranged on the outer side of a main body annular part 1 of the insulation framework in the circumferential direction, N is a multiple of a motor phase number N (hereinafter N is the motor phase number), one end, far away from the main body annular part 1, of each hollow insulation cylinder 2 is provided with an end part blocking piece 21 protruding out of the outer peripheral surface of each hollow insulation cylinder, and the hollow part inside the hollow insulation cylinder is an iron core accommodating cavity 22. The main body ring portion 1 is provided with a front surface stopper 11 extending to the front surface along the outer peripheral surface thereof, a back surface stopper 12 extending to the back surface thereof, and an inner side stopper 13 extending to the front surface along the inner peripheral surface thereof. The end baffle 21, the front baffle 11 and the back baffle 12 are arranged on the outer peripheral surface of the hollow insulating cylinder 2 to isolate a coil winding area A1, and a lead channel A2 is formed between the front baffle 11 and the inner side baffle 13.
Three fixing seats 3 are uniformly distributed on the inner side surface of the main body annular part 1, and mounting holes 31 parallel to the axis of the main body annular part 1 are formed in the fixing seats. The front surface and the back surface of the fixing seat 3 are provided with reinforcing ribs communicated with the inner side surface of the annular part 1 of the main body and the mounting hole 31. Be provided with incoming line board 41 and outlet plate 42 on the medial surface between adjacent fixing base 3, incoming line board 41 is connected the reinforcement through strengthening rib and 1 medial surface of main part annular portion with the outlet plate 42 back, openly is provided with binding post mount pad 43, be provided with the erection column 44 that is used for fixed inlet wire protective cover on the incoming line board 41 in addition.
The coil winding area A1 formed between the end part baffle plate 21 and the front baffle plate 11 and the back baffle plate 12 on the outer side of the hollow insulating cylinder 2 is used for winding enameled wires, the space between two adjacent hollow insulating cylinders 2 is used as the movable space of a winding needle during winding, and the height of the local protrusion of the end part baffle plate 21 is reduced, so that the movable space of the winding needle is enlarged, and the blocking stopping effect of the coil winding is guaranteed.
The inner baffle 13 is provided with a lead groove a4 at a position close to the wire inlet plate 41 and the wire outlet plate 42, and the lead groove constitutes a winding wiring and a passage for a power line to enter and exit the wire inlet plate 41 and the wire outlet plate 42.
Fig. 3 is a partial schematic view of the outer side surface S1 of the main body annular portion 1 spreading in the circumferential direction. The front baffle plate 11 is provided with a layered wire passing structure, the layered wire passing structure is formed by periodically and repeatedly winding a basic unit PN around the front baffle plate 11, the basic unit PN spans n hollow insulating cylinders, coils wound on every n adjacent hollow insulating cylinders 2 sequentially correspond to n phases in turn according to the working principle of a permanent magnet synchronous motor during wire winding, two sides of each hollow insulating cylinder 2 in the basic unit PN are respectively provided with a wire passing groove A3 with the same height, and the wire passing grooves A3 on different insulating cylinder sides of one basic unit are sequentially arranged in a height gradient manner. The coils in the same phase in different basic units PN need to form a loop with the phase power supply, and for this reason, a simplified scheme is that the coils in the same phase are connected through a lead wire passing through the wire passing groove A3 and passing through the lead wire channel a2, and the lead wire part can be positioned in the same plane in the lead wire channel a2 through the wire passing grooves A3 corresponding to the same height on both sides of the hollow insulating cylinder 2 of the phase coil. And because the heights of the wire passing grooves A3 on the two sides of the hollow insulating cylinder 2 corresponding to the coils of different phases are different, the lead wire structures of different phases can be naturally restrained in the planes with different heights in the lead wire channel A2, and lead wire layering between phases is formed. Through the lead layering design, the lead parts of all phases are distinct, on one hand, the interference of the leads of all phases in the winding process is reduced, on the other hand, the risk of short circuit fire caused by the fact that the leads are damaged due to insulation in the prior art can be avoided, and the reliability of the motor is improved.
N in this example is 12; n is 3, so the basic unit crosses 3 hollow insulators, for this purpose, a first phase wire-passing groove A31, a second phase wire-passing groove A32 and a third phase wire-passing groove A33 are sequentially arranged in a height-gradient order in the figure, and a three-phase lead is divided into three layers which are not interfered with and contacted with each other in a lead channel through the wire-passing grooves A31, A32 and A33 arranged in a gradient manner.
In the embodiment, the cross section of the hollow insulating cylinder is rectangular, the hollow part of the hollow insulating cylinder is an iron core containing cavity, the cross section of the containing cavity is designed to match the cross section of the iron core, and is generally rectangular or circular, in actual production, the iron core with the size matched with that of the iron core containing cavity of the hollow insulating cylinder is inserted into the iron core containing cavity of each hollow insulating cylinder, and then the excitation medium is used for sealing at the opening of the iron core containing cavity, so that the iron core is completely isolated from the outside through the insulating framework and the excitation medium, and the insulation property of the iron core can be ensured even if water enters in the cavity in actual measurement, so that the possibility of conducting and heating of the iron core is thoroughly avoided, and the use safety is ensured.
The motor is a permanent magnet synchronous variable frequency motor and comprises an outer rotor P2 and an inner stator P1 which are coaxially arranged, wherein the inner stator comprises an insulation framework 1, an iron core sealed in the hollow insulation cylinder 2 and an n-phase coil winding wound in a coil winding area. The coils and the iron core groups on each hollow insulating cylinder generate periodically-changed magnetic fields through periodic current flowing through each phase loop to drive the outer rotor P2 which is close to the hollow insulating cylinder and is provided with permanent magnets circumferentially to rotate, and the wire inlet plate 41 and the wire outlet plate 42 are optionally provided with protective covers P3 of power wires.
The insulating framework is integrally formed by injection molding, so that the manufacturing process is simplified, and the iron core and the outside are isolated due to the adoption of the iron core sealing design, so that the safety is further improved, and the potential safety hazard possibly caused by a large amount of heat generated after the short circuit of the iron core is electrified is avoided. Because the injection molding integrated molding is adopted, and the hollow insulators of the insulation framework are distributed along the radial direction, the insulation iron core is conveniently placed on a rotating plane from a vertical axisThe inner radial tiling reduces the axial height, compresses the installation space and improves the volume power of the motor equipment. The power of the permanent magnet synchronous motor in the embodiment is 220W, and the installation volume is about 1.108dm3The volume power reaches 198W/dm3. Compared with the prior art, the motor has the power of 200W and the installation volume of 1397dm3Its volumetric power is about 143W/dm3Compared with the prior art, the volume power of the embodiment of the invention is improved by 38%. Because the short-circuit current of the permanent magnet synchronous motor in the embodiment is actually measured to be 2.165A by adopting the layered wire passing design, compared with the short-circuit current commonly used in the prior art which is more than 2.5A, the short-circuit current is reduced by 13.4 percent, the leakage current of the motor is less than 2mA under the voltage test condition of 1800V, and the insulation resistance is more than 500M omega.
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 made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (8)
1. The insulating framework is characterized by comprising a main body annular part (1) and N radially extending hollow insulating cylinders (2) which are uniformly arranged along the circumferential direction of the outer side of the main body annular part, wherein one end, far away from the main body annular part (1), of each hollow insulating cylinder (2) is provided with an end blocking piece (21) protruding out of the outer circumferential surface of each hollow insulating cylinder, N is an integral multiple of the phase number N of a motor, and N is larger than or equal to 3.
2. The insulating framework of claim 1, characterized in that the main body annular part (1) is further provided with a front baffle plate (11) extending to the front side along the outer peripheral surface thereof and a back baffle plate (12) extending to the back side, the main body annular part is further provided with an inner baffle plate (13) extending to the front side along the inner peripheral surface thereof, and a lead channel (A2) is formed between the front baffle plate (11) and the inner baffle plate (13).
3. The insulating framework of claim 2, wherein the front baffle (11) is provided with a wire passing groove (A3) at each of two sides of the hollow insulating cylinder (2), and the inner baffle is provided with a lead groove.
4. The insulating framework according to claim 2, characterized in that the front side baffle plate (11) is provided with a layered wiring structure, and the layered wiring structure is formed by periodically repeating a basic unit (PN) around the front side baffle plate (11);
the basic unit (PN) crosses n hollow insulating cylinders (2), and comprises wire passing grooves (A3) which are respectively arranged at two sides of each hollow insulating cylinder (2), the wire passing grooves (A3) at two sides of the same hollow insulating cylinder (2) are equal in height, and the height of the wire passing grooves (A3) at two sides of different insulating cylinders (2) are arranged in a gradient sequence.
5. An insulating framework as claimed in any one of claims 1 to 4, characterised in that the inner lateral surface of the main annular portion (1) is uniformly distributed with at least three fixing seats (3) provided with mounting holes (31) parallel to the axis of the main annular portion.
6. An insulating framework as claimed in claim 5, characterised in that said main body annular portion (1) is provided with an inlet (41) and an outlet plate (42) on the inner side between adjacent holders (3), said inlet and outlet plates being provided with terminal mounting seats (43).
7. An electric machine, comprising: a stator (P1) and an outer rotor (P2) coaxially arranged with the stator and located outside the stator, the stator comprising the insulation skeleton according to any one of claims 1 to 6 and a core sealed inside the hollow insulation cylinder.
8. The motor of claim 7, wherein the number of motor phases N is 3 and the number of hollow insulation cylinders N is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263193.6A CN114123564A (en) | 2021-10-28 | 2021-10-28 | Insulating skeleton and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263193.6A CN114123564A (en) | 2021-10-28 | 2021-10-28 | Insulating skeleton and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114123564A true CN114123564A (en) | 2022-03-01 |
Family
ID=80377333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111263193.6A Pending CN114123564A (en) | 2021-10-28 | 2021-10-28 | Insulating skeleton and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114123564A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826783A (en) * | 2009-03-05 | 2010-09-08 | 中山大洋电机股份有限公司 | Sensor for sensing rotor position |
| CN203261138U (en) * | 2013-03-15 | 2013-10-30 | 海尔集团公司 | Stator and motor |
| WO2014024973A1 (en) * | 2012-08-08 | 2014-02-13 | 株式会社デンソー | Armature and rotating electrical machine using same |
| CN105006900A (en) * | 2015-08-18 | 2015-10-28 | 湖州南洋电机有限公司 | Motor stator insulation frame |
| WO2016173393A1 (en) * | 2015-04-27 | 2016-11-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating frame, stator having the same, and stator assembly method |
| CN106253535A (en) * | 2016-08-19 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of insulation framework, motor stator and motor |
| CN207339479U (en) * | 2017-08-04 | 2018-05-08 | 广州通达汽车电气股份有限公司 | The insulation framework and stator, motor of a kind of electronic fan motor stator |
| CN108808929A (en) * | 2018-08-30 | 2018-11-13 | 珠海格力电器股份有限公司 | For the insulation framework of motor stator, stator, motor and household electrical appliance |
| CN111404294A (en) * | 2020-05-09 | 2020-07-10 | 横店集团英洛华电气有限公司 | Stator assembly of external rotor motor |
-
2021
- 2021-10-28 CN CN202111263193.6A patent/CN114123564A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826783A (en) * | 2009-03-05 | 2010-09-08 | 中山大洋电机股份有限公司 | Sensor for sensing rotor position |
| WO2014024973A1 (en) * | 2012-08-08 | 2014-02-13 | 株式会社デンソー | Armature and rotating electrical machine using same |
| CN203261138U (en) * | 2013-03-15 | 2013-10-30 | 海尔集团公司 | Stator and motor |
| WO2016173393A1 (en) * | 2015-04-27 | 2016-11-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating frame, stator having the same, and stator assembly method |
| CN105006900A (en) * | 2015-08-18 | 2015-10-28 | 湖州南洋电机有限公司 | Motor stator insulation frame |
| CN106253535A (en) * | 2016-08-19 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of insulation framework, motor stator and motor |
| CN207339479U (en) * | 2017-08-04 | 2018-05-08 | 广州通达汽车电气股份有限公司 | The insulation framework and stator, motor of a kind of electronic fan motor stator |
| CN108808929A (en) * | 2018-08-30 | 2018-11-13 | 珠海格力电器股份有限公司 | For the insulation framework of motor stator, stator, motor and household electrical appliance |
| CN111404294A (en) * | 2020-05-09 | 2020-07-10 | 横店集团英洛华电气有限公司 | Stator assembly of external rotor motor |
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