CN210404858U - Stator core assembly, motor and compressor - Google Patents
Stator core assembly, motor and compressor Download PDFInfo
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- CN210404858U CN210404858U CN201921560633.2U CN201921560633U CN210404858U CN 210404858 U CN210404858 U CN 210404858U CN 201921560633 U CN201921560633 U CN 201921560633U CN 210404858 U CN210404858 U CN 210404858U
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- 230000004907 flux Effects 0.000 claims abstract description 13
- 238000004080 punching Methods 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a stator core subassembly, set up the motor of this stator core subassembly and set up the compressor of this motor relates to motor technical field, has solved the motor stator under the heavy load operating mode that exists among the prior art and has generated heat seriously, the technical problem of efficiency reduction. The stator core assembly comprises a stator core body and a magnetic conduction piece; the stator core body is formed by fixedly connecting at least two punching sheets along the thickness direction of the punching sheets, a stator slot is formed in the stator core body, and the magnetic conduction piece is arranged in the stator slot to increase the magnetic flux of the stator core body. The utility model is used for a can avoid the stator core body to generate heat, guarantee motor efficiency's stator core subassembly, motor and compressor.
Description
Technical Field
The utility model belongs to the technical field of the motor technique and specifically relates to a stator core subassembly, set up the motor of this stator core subassembly and set up the compressor of this motor.
Background
For the motor, the magnetic densities of the yoke part and the tooth part of the motor stator are different corresponding to different loads. As shown in fig. 1, the schematic diagram of the stator core is shown, under a heavy-load working condition, the magnetic densities of the stator yoke 3 and the tooth 4 are high, and saturation is easily achieved, so that the stator generates heat seriously, and the motor efficiency is reduced. In addition, a stator slot is arranged on the stator of the motor, a motor winding is arranged in the stator slot, and a slot wedge is arranged at the slot opening of the stator in order to seal the slot opening of the stator and prevent an enameled coil from loosening; the winding schemes of the motor are different corresponding to different loads, and the use amount of enameled wires in part of the schemes is too large, so that the slot filling rate is high, and slot wedges can be extruded and exploded; in part of schemes, the enameled wire consumption is small, the slot fullness rate is low, and the slot wedge can fall out of the stator slot.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stator core subassembly, set up the motor of this stator core subassembly and set up the compressor of this motor to solve the motor stator that exists among the prior art under the heavy load operating mode and generate heat seriously, the technical problem of efficiency reduction. The following explains various technical effects that can be produced by the preferred technical scheme in the technical schemes of the utility model.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a stator core assembly, which comprises a stator core body and a magnetic conduction piece; wherein,
the stator core body is formed by fixedly connecting at least two punching sheets along the thickness direction of the punching sheets, a stator slot is formed in the stator core body, and the magnetic conduction piece is arranged in the stator slot to increase the magnetic flux of the stator core body.
In a preferred or optional embodiment, the magnetic conducting member is inserted into the stator slot along the extending direction of the stator slot and can cover the inner wall surface of the stator slot.
In a preferred or alternative embodiment, the magnetic conducting member is fixedly connected with the wall surface of the stator slot.
In a preferred or alternative embodiment, the magnetic conducting member is connected with the stator slot in an interference fit manner.
In a preferred or alternative embodiment, the magnetic conducting member is bonded to the wall surface of the stator slot.
In a preferred or optional embodiment, a through groove is arranged on the magnetic conducting member, and the extending direction of the through groove is the same as the extending direction of the stator groove.
In a preferred or alternative embodiment, the cross-section of the through slot is pear-shaped, and the bottom of the through slot is arc-shaped.
In a preferred or alternative embodiment, the through slot is pear-shaped in cross-section, with a flat bottom.
In a preferred or alternative embodiment, the magnetic conducting member is made of a magnetic conducting material.
The embodiment of the utility model provides a motor, including motor body and the utility model discloses the stator core subassembly that any technical scheme provided.
The embodiment of the utility model provides a compressor, including the compressor body and the utility model discloses the motor that any technical scheme provided.
The utility model discloses an arbitrary technical scheme provides a stator core subassembly's assembly method, includes following step:
step A: fixedly connecting at least two punching sheets to form a stator core body;
and B: and inserting the magnetic conduction piece into the stator slot for fixing.
The utility model provides a stator core assembly, which comprises a stator core body and a magnetic conduction piece; because the magnetic conduction piece has the characteristic of increasing the magnetic flux, after the magnetic conduction piece is inserted into the stator slot of the stator core body, the magnetic flux of the stator core body can be increased, so that the magnetic density of the stator core body is not easy to reach saturation, the stator core body is prevented from heating, and the efficiency of the motor is ensured.
The utility model discloses in the preferred technical scheme among a great deal of technical scheme that provides can produce following technological effect at least:
1. the utility model discloses can increase the magnetic flux of stator core body, avoid the stator core body to generate heat, guarantee the efficiency of motor.
2. The utility model discloses can select the magnetic conduction piece of different shapes according to the difference of winding scheme, control the full rate of a groove of winding at normal scope.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a stator core structure in the prior art;
fig. 2 is a perspective view of a stator core assembly structure provided by the present invention;
fig. 3 is a schematic structural view of a first embodiment of the magnetic conduction member provided by the present invention;
fig. 4 is a schematic structural view of a first embodiment of a stator core assembly provided by the present invention;
fig. 5 is a schematic structural view of a second embodiment of the magnetic conduction member provided by the present invention;
fig. 6 is a schematic structural view of a second embodiment of the stator core assembly according to the present invention.
In the figure, 1, a stator core body; 11. a stator slot; 2. a magnetic conductive member; 21. a through groove; 22. a bottom; 3. a yoke portion; 4. a tooth portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. 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.
The utility model provides a can avoid the stator core body to generate heat, guarantee motor efficiency's stator core subassembly, set up the motor of this stator core subassembly and set up the compressor of this motor.
The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 6.
As shown in fig. 1 to 6, the stator core assembly provided by the present invention includes a stator core body 1 and a magnetic conductive member 2; wherein,
stator core body 1 is formed by two piece at least towards the piece along its thickness direction links firmly, is provided with stator slot 11 on the stator core body 1, and magnetic conduction piece 2 sets up in stator slot 11 in order to increase stator core body 1's magnetic flux.
The utility model provides a stator core assembly, which comprises a stator core body 1 and a magnetic conduction piece 2; because the magnetic conduction piece 2 has the characteristic of increasing the magnetic flux, after the magnetic conduction piece is inserted into the stator slot 11 of the stator core body 1, the magnetic flux of the stator core body 1 can be increased, so that the magnetic density of the stator core body 1 is not easy to reach saturation, the stator core body 1 is prevented from heating, and the efficiency of the motor is ensured.
In a preferred or alternative embodiment, the magnetic conducting member 2 is inserted into the stator slot 11 along the extending direction of the stator slot 11 and can cover the inner wall surface of the stator slot 11.
The magnetic conduction member 2 covers the inner wall surface of the stator slot 11, so that the magnetic flux near the stator slot 11 can be uniformly increased, and the serious heating of the stator caused by the saturation of the magnetic density of the stator is prevented. In actual production, the magnetic conduction members 2 with different thickness sizes can be selected according to the load of the motor.
In a preferred or alternative embodiment, the magnetic conducting member 2 is fixedly connected with the wall surface of the stator slot 11. The magnetic conduction piece 2 can be prevented from falling from the stator slot 11, the installation is firmer, and the performance of the motor is more stable.
In a preferred or alternative embodiment, the magnetic conducting member 2 is connected with the stator slot 11 in an interference fit manner.
In a preferred or alternative embodiment, the magnetic conducting member 2 is adhered to the wall surface of the stator slot 11.
Specifically, the fixed connection between the magnetic conductive member 2 and the wall surface of the stator slot 11 is not limited to the above two modes, and may be a fixed connection by a screw or the like.
As a preferred or alternative embodiment, the magnetic conducting member 2 is provided with a through slot 21, and the extending direction of the through slot 21 is the same as the extending direction of the stator slot 11.
Specifically, logical groove 21 on magnetic conduction spare 2 is used for the enameled wire through the winding, can select different windings according to the motor operating mode difference, confirms the area of passing through of logical groove 21 according to the difference of winding to guarantee that the full rate control of groove that leads to groove 21 is in normal range: the groove fullness rate is lower, the size of the through groove 21 on the corresponding magnetic conduction piece 2 is relatively smaller, and the groove fullness rate is increased to a normal range; the groove fullness rate is too high, the size of the through groove 21 on the corresponding magnetic conduction piece 2 is relatively large, and the groove fullness rate is controlled in a normal range.
In a preferred or alternative embodiment, the through slot 21 has a pear-shaped cross-section, with a base 22 that is curved.
In a preferred or alternative embodiment, the through slot 21 has a pear-shaped cross-section, the bottom 22 of which is flat.
Specifically, the slot fullness can be controlled by the size of the through slot 21 according to different motor load conditions, and the magnetic conduction member 2 with the through slots 21 in different shapes can be selected. For example, for the case of low groove fullness, the cross section of the through groove 21 may be a pear shape, and the bottom 22 may be a planar magnetic conducting member; aiming at the condition of overhigh groove fullness rate, the cross section of the through groove 21 can be selected to be pear-shaped, and the bottom 22 is an arc-shaped magnetic conduction piece. The cross-sectional shape of the through groove is not limited to the above two cases, and may be a half-mouth rectangular groove, an open rectangular groove, or the like.
In a preferred or alternative embodiment, the magnetic conducting member 2 is made of a magnetic conducting material.
Specifically, different magnetic materials can be selected according to different working conditions of the motor; for a motor which runs under a severe working condition for a long time, the load is heavier, the yoke part and the tooth part of the stator core body 1 have higher magnetic densities, the magnetic permeability of the magnetic material provided with the magnetic conductive piece 2 is relatively higher, and the serious heating of the stator core body 1 caused by the full magnetic density is avoided; for the motor running under normal working conditions, the load is relatively light, the yoke part and the tooth part of the stator core body 1 have low magnetic density, and the magnetic conductivity of the magnetic conductive material for mounting the magnetic conductive part 2 can be relatively low. The magnetic conductivity refers to the magnetic conductivity saturation density of the material, taking silicon steel sheets as an example, the magnetic density saturation densities of the silicon steel sheets with different grades are different, for example, the 50W1200 magnetic density is saturated at about 1.74T, the 50W800 magnetic density is saturated at about 1.72T, and the 50W600 magnetic density is saturated at about 1.69T.
The embodiment of the utility model provides a motor, including motor body and the utility model discloses the stator core subassembly that any technical scheme provided.
The embodiment of the utility model provides a compressor, including the compressor body and the utility model discloses the motor that any technical scheme provided.
The utility model discloses an arbitrary technical scheme provides a stator core subassembly's assembly method, includes following step:
step A: fixedly connecting at least two punching sheets to form a stator core body 1;
and B: the magnetic conduction piece 2 is inserted into the stator slot 11 to be fixed.
In the manufacturing process of the stator core assembly, after the plurality of punching sheets are fixedly connected to form the stator core body 1, the magnetic conduction piece 2 is inserted into the stator slot 11, and the assembling process is simple.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connection (such as riveting and welding), of course, the mutual fixed connection can also be an integral structure (for example, the mutual fixed connection is manufactured by casting and integral forming instead (except that the integral forming process can not be adopted obviously).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated. The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. A stator core assembly is characterized by comprising a stator core body and a magnetic conduction piece; wherein,
the stator core body is formed by fixedly connecting at least two punching sheets along the thickness direction of the punching sheets, a stator slot is formed in the stator core body, and the magnetic conduction piece is arranged in the stator slot to increase the magnetic flux of the stator core body.
2. The stator core assembly according to claim 1, wherein the flux-conducting member is inserted into the stator slot along an extension direction of the stator slot and covers an inner wall surface of the stator slot.
3. The stator core assembly according to claim 2, wherein said flux conducting member is fixedly attached to said stator slot wall surface.
4. The stator core assembly according to claim 3, wherein the flux-conducting member is in interference fit with the stator slots; or the magnetic conduction piece is adhered to the wall surface of the stator slot.
5. The stator core assembly according to claim 1, wherein said flux conducting member is provided with a through slot extending in the same direction as said stator slots.
6. A stator core assembly according to claim 5, wherein said through slots are pear-shaped in cross-section and arc-shaped at their base.
7. A stator core assembly according to claim 5, wherein said through slots are pear-shaped in cross-section with a flat bottom.
8. The stator core assembly according to claim 1, wherein said flux conducting member is made of a magnetically conductive material.
9. An electrical machine comprising a machine body and a stator core assembly according to any one of claims 1 to 8.
10. A compressor comprising a compressor body and the motor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921560633.2U CN210404858U (en) | 2019-09-18 | 2019-09-18 | Stator core assembly, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921560633.2U CN210404858U (en) | 2019-09-18 | 2019-09-18 | Stator core assembly, motor and compressor |
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| Publication Number | Publication Date |
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| CN210404858U true CN210404858U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921560633.2U Active CN210404858U (en) | 2019-09-18 | 2019-09-18 | Stator core assembly, motor and compressor |
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| CN (1) | CN210404858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544995A (en) * | 2019-09-18 | 2019-12-06 | 珠海凌达压缩机有限公司 | Stator core assembly, motor, compressor and stator core assembly assembling method |
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- 2019-09-18 CN CN201921560633.2U patent/CN210404858U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544995A (en) * | 2019-09-18 | 2019-12-06 | 珠海凌达压缩机有限公司 | Stator core assembly, motor, compressor and stator core assembly assembling method |
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