CN204316205U - For stator and the compressor electric motor with this stator of compressor electric motor - Google Patents
For stator and the compressor electric motor with this stator of compressor electric motor Download PDFInfo
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- CN204316205U CN204316205U CN201520025005.XU CN201520025005U CN204316205U CN 204316205 U CN204316205 U CN 204316205U CN 201520025005 U CN201520025005 U CN 201520025005U CN 204316205 U CN204316205 U CN 204316205U
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- stator
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- compressor electric
- slot
- step trough
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Abstract
The utility model discloses a kind of stator for compressor electric motor and the compressor electric motor with this stator, the described stator for compressor electric motor comprises: stator core, stator core is axially superposed by multiple stator punching and forms, multiple stator slot is provided with in stator core, limit a stator tooth between two often adjacent stator slots, the middle part radial width size that the radial width size of at least one end of each stator slot is greater than stator slot limits step trough with the end at stator slot; Stator winding, stator winding is wound around on the stator teeth; And two insulating end plates, on the both ends that two insulating end plates are located at stator core respectively and between stator winding and stator core, the insulating end plate relative with step trough is provided with the projection extend in step trough.According to the low cost of manufacture of the stator for compressor electric motor of embodiment of the present utility model, stator winding resistance is little, and thermal losses is low, and the axial height of stator is little.
Description
Technical field
The utility model relates to living electric apparatus field, especially relates to a kind of stator for compressor electric motor and the compressor electric motor with this stator.
Background technology
In correlation technique, compressor electric motor is made up of stator and rotor, has space between stator and rotor.Stator tooth in stator is wound with stator winding, produces rotating magnetic field after stator winding electrifying and act on rotor and form rotation torque, and then drive rotor to rotate.
There is following problem in the stator of the compressor electric motor in correlation technique:
1, the girth of the enamel wire coil of stator winding is long, high material consumption, improves the cost of compressor electric motor to a certain extent;
2, stator winding resistance is large, and thermal losses is high, causes the efficiency of motor low;
3, the line bag height of stator winding is higher, occupies the complete machine usage space of compressor, is difficult to manufacture for the compressor that space is smaller.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model needs to propose a kind of stator for compressor electric motor, and the low cost of manufacture of this stator, stator winding resistance is little, and thermal losses is low, and the axial height of stator is little.
The utility model also needs to propose one and has the dynamo-electric machine of this stator width compression.
According to the stator for compressor electric motor of the present utility model, comprise: stator core, described stator core is axially superposed by multiple stator punching and forms, multiple stator slot is provided with in described stator core, limit a stator tooth between two often adjacent described stator slots, the radial width size of at least one end of each described stator slot is greater than the middle part radial width size of described stator slot to limit step trough in the end of described stator slot; Stator winding, described stator winding is wrapped on described stator tooth; And two insulating end plates, on the both ends that described two insulating end plates are located at described stator core respectively and between described stator winding and described stator core, the described insulating end plate relative with described step trough is provided with the projection extend in described step trough, the end face towards stator core of each described insulating end plate is contact end face, and the part that described contact end face is axially relative with the edge of each described stator slot is equipped with inner groovy.
According to the stator of compressor electric motor of the present utility model, because at least one end of each stator slot at stator core is provided with step trough, and the projection that can extend in step trough is set on corresponding insulating end plate, so both add the creepage distance between stator winding and stator core, but also the size that can reduce to a certain extent on the axial direction of stator core, thus the girth of coiling stator winding on the stator teeth can be reduced, stator winding consumption reduces, the cost of compressor electric motor can be reduced thus, and the resistance of stator winding can be made to reduce, and then the thermal losses of compressor electric motor can be reduced, the efficiency of motor can be improved to a certain extent, and the axial height of whole stator reduces, the taking compressor inner space of motor can be reduced, reduce the manufacture difficulty of compressor.
In addition, because the part axially relative with the edge of each stator slot at the contact end face of insulating end plate is equipped with inner groovy, thus can avoid directly contacting between the contact end face of the edge of stator slot and insulating end plate, this inner groovy can form a cushioning effect district, can reduce the risk because causing insulating end plate to produce cracking between stator core and insulating end plate because of rigid contact.
In addition, also following additional technical feature can be had according to the stator of compressor electric motor of the present utility model:
According to embodiments more of the present utility model, described stator winding is two layer winding and span is 1, and described stator slot is fractional-slot.
According to embodiments more of the present utility model, the stator facewidth of each described stator tooth is b, the axial length of described step trough is h, the teeth directional width of described step trough is a, and described stator facewidth b, described axial length h and described teeth directional width a meet following relation: 1/2h < a < 1/2b.
According to embodiments more of the present utility model, two ends of each described stator slot all limit described step trough.
According to embodiments more of the present utility model, described multiple stator punching comprises two the first stator punching layers of the end being located at described stator core and the second stator punching layer between two described first stator punching layers, and the stator facewidth of described first stator punching layer is less than the stator facewidth of described second stator punching layer.
According to the compressor electric motor of the utility model second aspect, comprise the stator for compressor electric motor according to the utility model first aspect.
Stator due to the compressor electric motor according to the utility model embodiment has above-mentioned beneficial effect, thus, by arranging the compressor electric motor of this stator, there is similar beneficial effect, the thermal losses of the i.e. low cost of manufacture of compressor electric motor, and compressor electric motor is low, and efficiency is high, and axial dimension is little, be conducive to its layout in compressor inside and installation.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the cutaway view of the stator of compressor electric motor according to the utility model embodiment;
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1;
Fig. 3 is the stereogram of the stator core of the stator of the compressor electric motor shown in Fig. 1;
Fig. 4 is the cutaway view along B-B line in Fig. 3;
Fig. 5 be shown in Fig. 1 the stereogram of insulating end plate of stator of compressor electric motor;
Fig. 6 is the enlarged drawing in C region in Fig. 5.
Reference numeral:
Stator 100;
Stator core 1; Stator slot 11; Stator tooth 12; Step trough 13; First stator punching layer 14; Second stator punching layer 15;
Stator winding 2;
Insulating end plate 3; Protruding 31; Contact end face 32; Inner groovy 33.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
First with reference to figure 1-Fig. 6, the stator 100 according to the compressor electric motor of the utility model first aspect embodiment is described below.
As shown in Figure 1, comprise according to the stator 100 of the compressor electric motor of the utility model example: stator core 1, stator winding 2 and two insulating end plates 3.
Stator core 1 is axially superposed by multiple stator punching and forms, multiple stator slot 11 is provided with in stator core 1, limit a stator tooth 12 between two often adjacent stator slots 11, the radial width size of at least one end of each stator slot 11 is greater than the middle part radial width size of stator slot 11 to limit step trough 13 in the end of stator slot 11.That is, at least one end of each stator slot 11 is provided with step trough 13, comprises tripartite's mask body example here, take above-below direction as the axial direction of stator 100, and such as, shown in Fig. 1, wherein the upper end of each stator slot 11 can have step trough 13; Or the lower end of each stator slot 11 can have step trough 13; Again or the top and bottom of each stator slot 11 be equipped with step trough 13.
Stator winding 2 is wrapped on stator tooth 12, on the both ends that two insulating end plates 3 are located at stator core 1 respectively and between stator winding 2 and stator core 1, here it should be explained that, the both ends that two insulating end plates 3 are located at stator core 1 are respectively opened for making the end part interval of stator winding 2 and stator core 1, to avoid the ends contact of stator winding 2 and stator core 1.
Wherein, the insulating end plate 3 relative with step trough 13 is provided with the projection 31 extend in step trough 13, that is: when stator core 1 each stator slot 11 wherein one end is provided with step trough 13 time, the insulating end plate 3 corresponding with this end is provided with the projection 31 that can extend in this step trough 13; When the two ends of each stator slot 11 of stator core 1 are equipped with step trough 13, two insulating end plates 3 are equipped with the projection 31 that can extend in the step trough 13 of respective end.
As shown in Figure 5 and Figure 6, the end face towards stator core 1 of each insulating end plate 3 is contact end face 32, the part that contact end face 32 is axially relative with the edge of each stator slot 11 is equipped with inner groovy 33, this inner groovy 33 is recessed into from contact end face 32 to the direction away from stator core 1, can avoid thus directly contacting between the contact end face 32 of the edge of stator slot 11 and insulating end plate 3.Wherein, protruding 31 be formed on this contact end face 32.
According to the stator 100 of the compressor electric motor of the utility model embodiment, because at least one end of each stator slot 11 at stator core 1 is provided with step trough 13, and the projection 31 that can extend in step trough 13 is set on corresponding insulating end plate 3, so both add the creepage distance between stator winding 2 and stator core 1, but also the size that can reduce to a certain extent on the axial direction of stator core 1, thus the girth of the stator winding 2 be wound on stator tooth 12 can be reduced, stator winding 2 consumption reduces, the cost of compressor electric motor can be reduced thus, and the resistance of stator winding 2 can be made to reduce, and then the thermal losses of compressor electric motor can be reduced, the efficiency of compressor electric motor can be improved to a certain extent, and the axial height of whole stator 100 reduces, the taking compressor inner space of compressor electric motor can be reduced, reduce the manufacture difficulty of compressor.
In addition, because the part axially relative with the edge of each stator slot 11 at the contact end face 32 of insulating end plate 3 is equipped with inner groovy 33, thus can avoid directly contacting between the contact end face 32 of the edge of stator slot 11 and insulating end plate 3, this inner groovy 33 can form a cushioning effect district, can reduce because causing insulating end plate 3 to produce the risk ftractureed between stator core 1 and insulating end plate 3 because of rigid contact.
Preferably, two ends of each stator slot 11 all limit step trough 13, the axial height of compressor stator 100 can be made thus to be reduced further, better effects if.
As shown in Figure 3 and Figure 4, the stator tooth 12 of each stator tooth 12 is wide is b, the axial length of step trough 13 is h, and the teeth directional width of step trough 13 is a, and the wide b of stator tooth 12, axial length h and teeth directional width a meet following relation: 1/2h < a < 1/2b.
If the teeth directional width a of step trough 13 is too little, the boss of insulating end plate 3 extend into the difficulty of step trough 13 comparatively greatly, and stator 100 manufacture difficulty is high; If a is too large, the facewidth of the stator punching at stator core 1 two ends is too small, can cause, in the close increasing of the magnetic of stator punching teeth portion, having influence on the efficiency of compressor electric motor.Therefore, as 1/2h < a < 1/2b, stator 100 both can have been made to have good manufacturing, the efficiency of compressor electric motor can not have been affected again.
In embodiments more of the present utility model, it is wide that multiple stator punching comprises the wide stator tooth 12 being less than the second stator punching layer 15 of the stator tooth 12 of two the first stator punching layers 14 of the end being located at stator core 1 and the second stator punching layer 15, first stator punching layer 14 between two the first stator punching layers 14.That is, the formation of the step trough 13 of stator slot 11 is formed by stacked the putting of the stator punching of different size, and the manufacture of stator core 1 can be made thus convenient, easily shaping.
In embodiment more of the present utility model, according to the stator winding 2 of the compressor electric motor of the utility model embodiment for two layer winding and span is 1, stator slot 11 is fractional-slot.Thus, the technique effect of compressor electric motor can be made better, the effect of element electromotive force and field waveform can be improved, adopt fractional slot winding, total groove number of compressor electric motor can be made to reduce, the applicable two layer winding of compressor electric motor of larger capacity.Certain the utility model is not limited to this, can also be single layer winding according to the stator winding 2 of the compressor electric motor of the utility model embodiment, and stator slot 11 also can be integer groove.
According to the compressor electric motor of the utility model second aspect embodiment, comprise the stator 100 for compressor electric motor according to the utility model first aspect embodiment.Because the stator 100 of the compressor electric motor according to the utility model embodiment has above-mentioned beneficial effect, thus, by arranging the compressor electric motor of this stator 100, there is similar beneficial effect, the thermal losses of the i.e. low cost of manufacture of compressor electric motor, and compressor electric motor is low, and efficiency is high, and axial dimension is little, be conducive to its layout in compressor inside and installation.
Be all known according to other configuration examples of the compressor electric motor of the utility model embodiment for those of ordinary skills as the concrete structure of rotor etc. and operation, no longer describe in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (6)
1. for a stator for compressor electric motor, it is characterized in that, comprising:
Stator core, described stator core is axially superposed by multiple stator punching and forms, multiple stator slot is provided with in described stator core, limit a stator tooth between two often adjacent described stator slots, the radial width size of at least one end of each described stator slot is greater than the middle part radial width size of described stator slot to limit step trough in the end of described stator slot;
Stator winding, described stator winding is wrapped on described stator tooth;
Two insulating end plates, on the both ends that described two insulating end plates are located at described stator core respectively and between described stator winding and described stator core, the described insulating end plate relative with described step trough is provided with the projection extend in described step trough, the end face towards stator core of each described insulating end plate is contact end face, and the part that described contact end face is axially relative with the edge of each described stator slot is equipped with inner groovy.
2. the stator for compressor electric motor according to claim 1, is characterized in that, described stator winding is two layer winding and span is 1, and described stator slot is fractional-slot.
3. the stator for compressor electric motor according to claim 1, it is characterized in that, the stator facewidth of each described stator tooth is b, the axial length of described step trough is h, the teeth directional width of described step trough is a, and described stator facewidth b, described axial length h and described teeth directional width a meet following relation: 1/2h < a < 1/2b.
4. the stator for compressor electric motor according to claim 1, is characterized in that, two ends of each described stator slot all limit described step trough.
5. the stator for compressor electric motor according to claim 4, it is characterized in that, described multiple stator punching comprises two the first stator punching layers of the end being located at described stator core and the second stator punching layer between two described first stator punching layers, and the stator facewidth of described first stator punching layer is less than the stator facewidth of described second stator punching layer.
6. a compressor electric motor, is characterized in that, comprises the stator for compressor electric motor according to any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025005.XU CN204316205U (en) | 2015-01-14 | 2015-01-14 | For stator and the compressor electric motor with this stator of compressor electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025005.XU CN204316205U (en) | 2015-01-14 | 2015-01-14 | For stator and the compressor electric motor with this stator of compressor electric motor |
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| Publication Number | Publication Date |
|---|---|
| CN204316205U true CN204316205U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520025005.XU Active CN204316205U (en) | 2015-01-14 | 2015-01-14 | For stator and the compressor electric motor with this stator of compressor electric motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962539A (en) * | 2017-12-26 | 2019-07-02 | 天津市松正电动汽车技术股份有限公司 | A kind of motor stator slot mouth structure |
| CN110875667A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝制冷设备有限公司 | Motor insulation assembly, motor and compressor |
-
2015
- 2015-01-14 CN CN201520025005.XU patent/CN204316205U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962539A (en) * | 2017-12-26 | 2019-07-02 | 天津市松正电动汽车技术股份有限公司 | A kind of motor stator slot mouth structure |
| CN110875667A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝制冷设备有限公司 | Motor insulation assembly, motor and compressor |
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