WO2023097919A1 - 定子、电机、压缩机和制冷设备 - Google Patents

定子、电机、压缩机和制冷设备 Download PDF

Info

Publication number
WO2023097919A1
WO2023097919A1 PCT/CN2022/079405 CN2022079405W WO2023097919A1 WO 2023097919 A1 WO2023097919 A1 WO 2023097919A1 CN 2022079405 W CN2022079405 W CN 2022079405W WO 2023097919 A1 WO2023097919 A1 WO 2023097919A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating layer
stator
slot
teeth
free end
Prior art date
Application number
PCT/CN2022/079405
Other languages
English (en)
French (fr)
Inventor
毛临书
邱小华
杨文权
张肃
Original Assignee
广东美芝制冷设备有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广东美芝制冷设备有限公司 filed Critical 广东美芝制冷设备有限公司
Publication of WO2023097919A1 publication Critical patent/WO2023097919A1/zh

Links

Images

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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • 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
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present application relates to the technical field of motor manufacturing, in particular, to a stator, a motor, a compressor and refrigeration equipment.
  • motors are widely used in countless kinds of equipment in all walks of life and play an irreplaceable role.
  • the motor is running, in order to prevent the normal operation of the motor from its own electromagnetic interference, it is often necessary to add insulators in the motor stator to play the role of slot insulation, and at the same time add interphase insulators to play the role of phase insulation. Therefore, The number of components used for insulation is large and the structure is complex, which occupies the slot space of the motor, reduces the full slot rate of the motor, and then affects the effect of the motor.
  • This application aims to solve one of the technical problems existing in the prior art or related art.
  • the first aspect of the application proposes a stator.
  • a second aspect of the present application proposes an electric machine.
  • a third aspect of the present application proposes a compressor.
  • the fourth aspect of the present application provides a refrigeration device.
  • the stator provided by the first aspect of the present application includes: a stator core, a stator winding and an insulating layer.
  • the above-mentioned stator core includes a plurality of stator teeth arranged at intervals, and a stator slot is formed between two adjacent stator teeth; the above-mentioned stator winding is wound on the stator tooth, and at least a part of the stator winding is located in the stator slot; the above-mentioned insulating layer is set In the stator slot and between the stator winding and the stator teeth, the insulating layer separates the stator slot into two areas, and the stator windings wound on different stator teeth are located in the two areas of the insulating layer.
  • stator winding is arranged on the stator core, which is generally in a tubular structure.
  • the stator core is provided with a plurality of stator teeth and stator slots, and the stator teeth protrude toward the hollow inside the stator core. Every two The stator teeth are arranged at intervals of stator slots, and each stator slot is formed by clamping stator teeth on both sides of the stator slot.
  • stator winding refers to the winding wire on the stator, which is a conductive wire made of a material with good electrical conductivity, such as copper wire, and a coil formed by winding a fixed component.
  • stator winding is wound on The stator teeth pass through the stator slots on both sides of the stator teeth, and then are arranged on the stator iron core. Because the material, size, position and number of turns of the conductive wire wound on the stator teeth by the stator winding will have a direct impact on the performance of the stator, therefore, it is necessary to wind the stator teeth as much as possible during the manufacture and assembly of the stator. More windings increase the full slot rate of the motor and thus improve the performance of the motor.
  • an insulating layer is arranged inside the stator slot.
  • the motor works on the basis of the action of the working magnetic field on the current force, and then converts electrical energy into mechanical energy. Therefore, the motor will pass a large current and form a strong magnetic field when it is working.
  • insulation treatment is often required between the various components inside the motor. Setting an insulation layer inside the stator slot is one of the insulation treatment methods.
  • the insulating layer separates the stator winding from the stator teeth, so that the stator winding and the stator teeth are insulated, that is, the effect of slot insulation is achieved; at the same time, the same stator slot is divided into two areas by the insulating layer, and they are wound on different stator teeth.
  • the two parts of the stator winding are separated by the insulating layer when they pass through the same stator slot, so that the insulation between the two adjacent stator windings is realized, that is, the phase insulation, that is, the insulating layer can meet the requirements of setting the stator winding and the stator core at the same time.
  • the above-mentioned stator is composed of a stator core, a stator winding and an insulating layer.
  • the stator core is generally in a tubular structure, and stator teeth and stator slots are arranged on the stator core.
  • the stator teeth are arranged at intervals on the inner wall of the stator core and protrude hollowly to the inside. Between two adjacent stator teeth are stator teeth.
  • the stator winding is a conductive coil wound on the stator.
  • the stator winding is wound on the stator teeth and runs through the stator slots on both sides of the stator teeth.
  • the number of coil turns of the stator winding should be as many as possible, and the stator winding should occupy as much space in the stator slot as possible;
  • the insulating layer is arranged in the stator slot of the stator core, and fits the inner wall of the stator slot and encloses a space , when the stator winding is wound, the stator winding penetrates the space enclosed by the insulating layer on both sides of the stator tooth and is wound on the stator tooth, and the insulating layer on both sides of the stator tooth is used to connect the stator winding and the stator winding
  • the slot insulation is realized between the wound stator teeth, and the same insulating layer is divided into two regions, and the two stator windings wound on two adjacent stator teeth respectively run through one of the above two regions, and the above two
  • the stator winding is isolated by the insulating layer to achieve phase insulation, so that the stator can avoid being interfered by the
  • stator may also have the following additional technical features:
  • the above insulating layer includes a first insulating layer and a second insulating layer.
  • the above-mentioned first insulating layer is used to space the stator winding and the stator teeth; the above-mentioned second insulating layer is used to space the stator windings wound on different stator teeth, and the two ends of the second insulating layer are respectively connected to the first insulating layer, so that the second insulating layer A space enclosed by an insulating layer is divided into two areas.
  • the insulating layer includes a first insulating layer and a second insulating layer.
  • the first insulating layer is arranged around the stator slot, and the first insulating layer is attached to the side walls of the stator teeth.
  • the stator winding penetrates the space isolated by the first insulating layer in the stator slot and is arranged around the stator teeth.
  • the part of the stator winding located in the stator slot is separated from the stator tooth by the first insulating layer, and the first insulating layer is located between the stator winding and the stator tooth, and separates the stator winding from the side wall of the stator tooth, To achieve the effect of slot insulation.
  • the second insulating layer is located inside the space enclosed by the first insulating layer, and both ends of the second insulating layer are connected to the first insulating layer, separating the space enclosed by the first insulating layer into two area, the edges of the two areas are respectively adjacent to two different stator teeth.
  • stator windings two adjacent stator windings need to penetrate the space enclosed by the same first insulating layer.
  • the two stator windings respectively penetrate two different In the region, the second insulating layer is located between two adjacent stator windings wound on different stator teeth to achieve phase insulation between the stator windings.
  • the first insulating layer includes a connected yoke insulating layer, a tooth insulating layer, a tooth shoe insulating layer, and a bending line.
  • the above-mentioned connected yoke insulating layer, tooth insulating layer and tooth shoe insulating layer, the tooth shoe insulating layer has a gap, so that the first insulating layer can be opened or closed; the above-mentioned bending line extends along the axial direction of the stator, bends The folding line is provided on the insulating layer of the yoke, and the insulating layer of the yoke can be bent along the bending line.
  • the above-mentioned first insulating layer includes a connected yoke insulating layer, a tooth insulating layer and a shoe insulating layer.
  • the first insulating layer is located inside the stator slot and forms a long tube that fits the stator slot.
  • the sides of the long tube are the yoke insulating layer, the tooth insulating layer and the tooth shoe insulating layer respectively.
  • the insulating layer of the yoke is the part where the first insulating layer is attached to the bottom of the stator slot and is also the inner diameter of the stator yoke;
  • the insulating layer of the teeth is the part where the first insulating layer is attached to the side walls on both sides of the stator teeth;
  • the insulating layer of the tooth shoe It is the part where the first insulating layer is attached to two adjacent stator tooth shoes, and there is a gap on the insulating layer of the tooth shoe.
  • the gap When the insulating layers of the tooth shoe on both sides of the gap are connected, the gap is closed, and the first insulating layer It is in a closed state; when the insulating layers on both sides of the notch are separated, the notch is opened, and the first insulating layer is in an open state.
  • the position of the notch is often set at the notch position of the insulating layer of the tooth shoe and the stator slot.
  • the first insulating layer further includes the above-mentioned bending lines.
  • the bending line is set on the first insulating layer along the axial extension of the stator slot, so when the position where the first insulating layer is provided with the bending line is bent along the bending line, the gap is opened or closed accordingly, so that the first The purpose of the insulating layer being in the open state or the first insulating layer being in the closed state.
  • the position of the above-mentioned bending line can be selected in many ways, and more than one bending line can be set on the same first insulating layer. In this embodiment, setting the bending line on the insulating layer of the yoke can meet actual needs.
  • the above-mentioned stator core includes a plurality of segmented stamping pieces.
  • the above-mentioned multiple block punching pieces can be spliced together to form a stator core along the circumferential direction of the stator; when the multiple block punching sheets are in an unjoined state, the first insulating layer is located in the stator slot, and is in an open state; when a plurality of block punching pieces have been wound and are in a spliced state, the first insulating layer is bent along the bending line, and the first free end of the tooth shoe insulating layer can coincide with the second free end so that The first insulating layer is closed into a closed structure.
  • the stator iron core includes the above-mentioned plurality of block punching pieces, and all the block punching pieces are sequentially connected along the circumferential direction of the stator, so that they can be joined together to form a complete stator iron core.
  • the stator core composed of multiple segmented cores can complete the winding of the stator winding in the segmented state. After the winding is completed, the multiple segmented cores are assembled into a complete stator core.
  • the gap provided in the first insulating layer can make the first insulating layer between the two stator teeth be in an open state.
  • stator winding wound on one stator tooth can accommodate Placed in the space enclosed by the second insulating layer and part of the first insulating layer, the stator windings wound on adjacent stator teeth are only wound outside part of the first insulating layer.
  • the above-mentioned first insulation layer The layer is located in a complete stator slot, and the first free end of the tooth shoe insulation layer of this first insulation layer coincides with the second free end, and the gap of the tooth shoe insulation layer is closed, so that the first insulation layer is closed state, the stator winding wound on one stator tooth is still accommodated in the space surrounded by the second insulating layer and part of the first insulating layer, and the stator winding wound on the adjacent stator tooth is close to the other part of the winding, and is The second insulating layer is spaced apart.
  • the bending line protrudes from the inner surface of the insulating layer of the yoke.
  • the bending line is set on the insulating layer of the yoke and protrudes from the inner surface of the insulating layer of the yoke, and the first insulating layer is bent along the bending line to open or close the notch.
  • the insulating layer of the yoke is bent along the bending line and protrudes.
  • the above insulating layer further includes a third insulating layer.
  • One end of the third insulating layer is connected to the first insulating layer, and the other end of the third insulating layer extends to the inside of the first area of the two areas.
  • the first insulating layer is located in the stator slot, the first insulating layer encloses a space, both ends of the second insulating layer are connected to the first insulating layer, and the second insulating layer connects the first insulating layer
  • the enclosed space is divided into two areas. Specifically, one end of the third insulating layer is connected to the first insulating layer, and the other end of the third insulating layer extends into the space enclosed by the first insulating layer, which means that the third insulating layer extends into two In one of the regions, for convenience of distinction, the region where the third insulating layer protrudes is taken as the first region.
  • one end of the second insulating layer is connected to the bending line, the other end of the second insulating layer is connected to the first free end of the insulating layer of the tooth shoe part; the third insulating layer is insulated from the tooth shoe part The second free end of the layer is connected.
  • the above-mentioned second insulating layer is located inside the space surrounded by the first insulating layer and divides the space into two regions, and one end of the second insulating layer is connected to the bending line provided on the insulating layer of the yoke , the other end of the second insulating layer is connected to the first free end of the tooth shoe insulating layer, so that the two regions separated by the second insulating layer are equal in size, and the number of windings in the two regions is basically the same. winding.
  • one end of the third insulating layer is connected to the second free end of the tooth shoe insulating layer, and the other end extends into the first region isolated by the second insulating layer.
  • connection between the third insulating layer and the second free end is against the connection between the second insulating layer and the first free end, and the free end of the third insulating layer extends into the first region.
  • the second free end Due to the tightness between the third insulating layer and the second insulating layer, the part of the tooth shoe insulation layer where it is located can be tightly connected to the part of the tooth shoe insulation layer where the first free end is located, and the first free end can also be connected with the The second free end is firmly overlapped, and the insulating layer of the part of the tooth shoe where the second free end is located will not move due to vibration and other reasons during the working process. The first free end and the second free end are easily released. Open, the first insulating layer cannot continue to play the role of slot insulation, affecting the normal operation of the stator.
  • the gap is closed, and the space surrounded by the first insulating layer is divided into two regions by the second insulating layer, and the first free end and the second free end of the insulating layer of the tooth shoe overlap,
  • the junction of the third insulating layer and the second free end is against the junction of the second insulating layer and the first free end, the third insulating layer extends into the first region, and the space in the same first insulating layer is occupied by two adjacent stators
  • the windings penetrate, and the two stator windings are separated by the second insulating layer and respectively penetrate the two areas to achieve the effect of phase insulation.
  • the extending directions of the third insulating layer and the second insulating layer are different.
  • one end of the third insulating layer is connected to the second free end, and the other end extends into the first region.
  • the first free end coincides with the second free end
  • the connection between the third insulating layer and the second free end is against the connection between the second insulating layer and the first free end
  • the second free end Due to the tightness between the third insulating layer and the second insulating layer, the part of the tooth shoe insulation layer where it is located can be tightly connected to the part of the tooth shoe insulation layer where the first free end is located, and the first free end can also be connected with the The second free end is firmly overlapped, and the gap cannot be easily opened.
  • the extension direction of the third insulating layer is the same as that of the second insulating layer, the second insulating layer and the third insulating layer are parallel to each other, and the interaction force between them is very small, and the effect of abutment is poor.
  • the interaction force at the abutting part of the insulating layer makes the overlap of the first free end and the second free end closer.
  • the length of the second insulating layer is L1
  • the length of the third insulating layer is L2
  • the relationship between L1 and L2 satisfies: 0mm ⁇ L2 ⁇ 0.5 ⁇ L1.
  • both the above-mentioned second insulating layer and the third insulating layer are arranged in the space surrounded by the first insulating layer and connected to the first insulating layer, and the second insulating layer divides the space into two regions, One end of the second insulating layer is connected to the bending line provided on the yoke insulating layer, the other end of the second insulating layer is connected to the first free end of the tooth shoe insulating layer, and one end of the third insulating layer is connected to the tooth shoe The second free end of the insulating layer is connected, and the other end protrudes into the first region isolated by the second insulating layer. From this, it can be concluded that the second insulating layer is longer than the third insulating layer without considering the special case of folding and curling of the third insulating layer.
  • the length of the second insulating layer is referred to as L1
  • the length of the third insulating layer is referred to as L2.
  • the value of L2 should not be too large, otherwise it will occupy the space in the first area, which will bring difficulties to the assembly of the stator winding, and also reduce the full slot rate in the stator slot, which will affect the performance of the motor.
  • the requirement for the length of L2 is: 0mm ⁇ L2 ⁇ 0.5 ⁇ L1.
  • the third insulating layer can occupy the smallest space in the first region when the third insulating layer fully exerts its function, reducing the influence on the installation of the stator winding, and Increase the full slot rate as much as possible.
  • the length of the third insulating layer is L2
  • the slot width of the stator slot is W
  • the relationship between W and L2 satisfies: L2 ⁇ 0.5 ⁇ W.
  • the length of the third insulating layer is set as L2, and the slot width of the stator slot is set as W. Since the first insulating layer needs to be clamped by a pair of tooth shoes close to each other to work normally, the width W of the notch should not be too large. When the first insulating layer is transformed from the open state to the closed state, a pair of tooth shoes that are close to each other are constantly approaching.
  • the third insulating layer is easy to slide out from the notch, and the first region no longer maintains communication with the outside only at both ends along the axial direction of the stator, and the effect of slot insulation cannot be achieved.
  • the width W of the notch and the length L2 of the third insulating layer are limited, specifically: L2 ⁇ 0.5 ⁇ W.
  • a motor which includes a stator and a rotor according to any one of the above technical solutions.
  • the above-mentioned rotor is provided in the above-mentioned stator.
  • the main components of an electric motor are the stator, which is fixed, and the rotor, which is rotationally arranged. Driven by the electromagnetic force generated after the stator is energized, the rotor starts to rotate and drives the related equipment connected to the rotor to work.
  • the motor proposed in this application includes a stator according to any one of the above technical solutions. Therefore, the above-mentioned motor has all the beneficial effects of the above-mentioned stator, which will not be discussed one by one here.
  • a compressor is also proposed, and the compressor includes the motor as proposed in the above solution.
  • the compressor proposed by the present application includes the motor of the above-mentioned technical solution. Therefore, the above-mentioned compressor has all the beneficial effects of the above-mentioned motor, which will not be discussed one by one here.
  • a refrigeration device is also provided, and the refrigeration device includes the motor as proposed in the above solution, or the compressor as proposed in the above solution.
  • Refrigeration equipment is a typical electrical equipment that requires a motor.
  • Conventional refrigeration equipment needs to use a compressor, and there are only a few special refrigeration equipment that do not have a compressor, but are directly driven by a motor to cool down and refrigerate other types of equipment.
  • the refrigerating equipment proposed in the present application includes the motor according to the above technical solution, or the compressor according to the above technical solution. Therefore, the above-mentioned refrigeration equipment has the above-mentioned motor, or all the beneficial effects of the above-mentioned compressor will not be discussed one by one here.
  • Fig. 1 shows the structural representation of the stator in the embodiment of the present application
  • Fig. 2 shows one of the structural schematic diagrams of two adjacent stator teeth in the embodiment of the present application
  • Fig. 3 shows the second structural schematic diagram of two adjacent stator teeth in the embodiment of the present application
  • Fig. 4 shows the motor efficiency comparison chart provided by the embodiment of the present application and the prior art motor
  • Fig. 5 shows a schematic structural diagram of a compressor in an embodiment of the present application.
  • stator core 110 stator teeth, 120 stator slots, 121 slots, 130 block punching; 200 stator windings; 300 insulation layer, 310 first insulation layer, 311 yoke insulation layer, 312 teeth insulation layer, 313 Insulation layer of tooth shoe part, 314 bending line, 315 first area, 316 first free end, 317 second free end, 320 second insulating layer, 330 third insulating layer; 400 compressor, 410 shell, 420 motor, 430 crankshaft, 440 main bearing, 450 cylinder, 460 piston, 470 sub bearing, 480 fluid reservoir.
  • stator a motor
  • compressor and refrigeration equipment provided according to some embodiments of the present application with reference to FIGS. 1 to 5 .
  • the stator proposed according to the first aspect of the present application includes: a stator core 100 , a stator winding 200 and an insulating layer 300 .
  • the stator core 100 includes a plurality of stator teeth 110 arranged at intervals, and a stator slot 120 is formed between two adjacent stator teeth 110; the stator winding 200 is wound around the stator teeth 110, and at least a part of the stator winding 200 is located in the stator.
  • the above-mentioned insulating layer 300 is set in the stator slot 120, and is located between the stator winding 200 and the stator tooth 110.
  • the insulating layer 300 divides the stator slot 120 into two regions, and is wound on the stator windings of different stator teeth 110. 200 are located in two regions of the insulating layer 300 .
  • stator winding 200 is arranged on the stator core 100, and the stator core 100 is generally in a tubular structure.
  • the stator core 100 is provided with a plurality of stator teeth 110 and stator slots 120, and the stator teeth 110 are directed toward the inside of the stator core 100
  • the hollow part protrudes, and a stator slot 120 is arranged between every two stator teeth 110 , and each stator slot 120 is formed by sandwiching stator teeth 110 on both sides of the stator slot 120 .
  • stator winding 200 refers to the winding wire on the stator, which is a conductive wire made of a material with good electrical conductivity, such as copper wire, and is wound around a fixed component to form a coil.
  • stator winding 200 Wound on the stator teeth 110 and pass through the stator slots 120 on both sides of the stator teeth 110 , and then arranged on the stator core 100 . Since the material, size, position and number of turns of the conductive wire wound on the stator teeth 110 by the stator winding 200 will have a direct impact on the performance of the stator, therefore, it is necessary to ensure that the stator teeth 110 are as close as possible during the manufacture and assembly of the stator. More winding wires are wound on the top to increase the full slot rate of the motor 420 and thus improve the performance of the motor 420 .
  • an insulating layer 300 is disposed inside the stator slot 120 .
  • the motor 420 works based on the principle that the working magnetic field exerts force on the current, and then converts electrical energy into mechanical energy. Therefore, the motor 420 passes a large current and forms a strong magnetic field during operation. In order to make the motor 420 work normally, insulation treatment is often required between the various components inside the motor 420 , and setting the insulation layer 300 inside the stator slot 120 is one of the insulation treatment methods.
  • the insulating layer 300 isolates the stator winding 200 from the stator teeth 110, so that the stator winding 200 and the stator teeth 110 are insulated, that is, the effect of slot insulation is achieved; at the same time, the same stator slot 120 is divided into two regions by the insulating layer 300, The two stator windings 200 wound on different stator teeth 110 are separated by the insulating layer 300 when passing through the same stator slot 120, so that the two adjacent stator windings 200 are insulated, that is, the phase insulation is the phase insulation.
  • the insulating layer 300 can simultaneously satisfy the slot insulation between the stator winding 200 and the stator core 100 and the phase insulation of the stator winding 200 wound on different stator teeth 110 .
  • the above-mentioned stator is composed of a stator core 100 , a stator winding 200 and an insulating layer 300 .
  • the stator core 100 is generally in a tubular structure.
  • the stator core 100 is provided with stator teeth 110 and stator slots 120.
  • the stator teeth 110 are arranged at intervals on the inner wall of the stator core 100 and protrude hollowly inside.
  • stator slot 120 Between the stator teeth 110 is the stator slot 120; the stator winding 200 is a conductive coil wound on the stator, the stator winding 200 is wound on the stator tooth 110 and runs through the stator slot 120 on both sides of the stator tooth 110, without affecting the normal Under working conditions, in order to optimize the performance of the stator, the number of coil turns of the stator winding 200 should be as many as possible, and the stator winding 200 should also occupy as much space as possible in the stator slot 120; the insulating layer 300 is arranged on the stator iron In the stator slot 120 of the core 100, a space is attached to the inner wall of the stator slot 120 and encloses a space.
  • stator winding 200 When the stator winding 200 is wound, the stator winding 200 penetrates the space surrounded by the insulating layer 300 on both sides of the stator tooth 110.
  • the insulating layer 300 on both sides of the stator tooth 110 is used to realize slot insulation between the stator winding 200 and the stator tooth 110 wound by the stator winding 200, and the same insulating layer 300 is divided into Two areas, two stator windings 200 wound on two adjacent stator teeth 110 respectively run through one of the above two areas, the above two stator windings 200 are separated by an insulating layer 300 to achieve phase insulation, so that the stator is as close as possible Avoid being disturbed by the electromagnetic field generated by itself during normal operation.
  • stator may also have the following additional technical features:
  • the insulating layer 300 includes a first insulating layer 310 and a second insulating layer 320 .
  • the first insulating layer 310 is used to space the stator winding 200 and the stator tooth 110;
  • the second insulating layer 320 is used to space the stator winding 200 wound on different stator teeth 110, and the two ends of the second insulating layer 320 are respectively connected to the first
  • An insulating layer 310 is used to divide the space enclosed by the first insulating layer 310 into two regions.
  • the insulating layer 300 includes a first insulating layer 310 and a second insulating layer 320 .
  • the first insulating layer 310 is disposed around the stator slot 120 , and the first insulating layer 310 is attached to the sidewall of the stator tooth 110 .
  • the stator winding 200 penetrates the space isolated by the first insulating layer 310 in the stator slot 120 and is arranged around the stator teeth 110 .
  • the part of the stator winding 200 located in the stator slot 120 is separated from the stator tooth 110 by the first insulating layer 310, and the first insulating layer 310 is located between the stator winding 200 and the stator tooth 110, and the stator winding 200 It is spaced apart from the side walls of the stator teeth 110 to achieve the effect of slot insulation.
  • the second insulating layer 320 is located inside the space enclosed by the first insulating layer 310, and both ends of the second insulating layer 320 are connected to the first insulating layer 310, and the space enclosed by the first insulating layer 310
  • the space is divided into two areas, and the edges of the two areas are respectively adjacent to two different adjacent stator teeth 110 .
  • stator winding 200 When winding the stator winding 200, two adjacent stator windings 200 need to pass through the space surrounded by the same first insulating layer 310, at this time, the two stator windings 200 respectively penetrate the same first insulating layer 310 In two different regions, the second insulating layer 320 is located between two adjacent stator windings 200 wound on different stator teeth 110 , so as to achieve phase insulation between the stator windings 200 .
  • both the first insulating layer 310 and the second insulating layer 320 belong to the same insulating layer 300 as a whole, and a part of the insulating layer 300 as a whole, that is, the second insulating layer 320 is connected to the insulating layer 300 after being bent.
  • the other part of the whole is at the middle position of the first insulating layer 310 , so that the space surrounded by the first insulating layer 310 is divided into two regions by the second insulating layer 320 .
  • the first insulating layer 310 includes a connected yoke insulating layer 311 , a tooth insulating layer 312 and a tooth shoe insulating layer 313 , and a bending line 314 .
  • the above-mentioned connected yoke insulation layer 311, teeth insulation layer 312 and tooth shoe insulation layer 313, the tooth shoe insulation layer 313 has a gap, so that the first insulation layer 310 can be opened or closed;
  • the above-mentioned bending line 314 is along the stator Extending in the axial direction, the bending line 314 is provided on the yoke insulating layer 311 , and the yoke insulating layer 311 can be bent along the bending line 314 .
  • the above-mentioned first insulating layer 310 includes a yoke insulating layer 311 , a tooth insulating layer 312 and a tooth boot insulating layer 313 .
  • the first insulating layer 310 is located inside the stator slot 120 and forms a long tube that fits the stator slot 120 .
  • the sides of the long tube are the yoke insulating layer 311 , the tooth insulating layer 312 and the tooth shoe insulating layer 313 .
  • the yoke insulating layer 311 is the part where the first insulating layer 310 is attached to the bottom of the stator slot 120 and is also the part of the inner diameter of the stator yoke;
  • the tooth insulating layer 312 is the part where the first insulating layer 310 is attached to the sidewalls on both sides of the stator teeth 110
  • the tooth shoe insulation layer 313 is the part where the first insulation layer 310 fits the two adjacent stator teeth 110 tooth shoes, and a gap is arranged on the tooth shoe insulation layer 313, when the tooth shoe insulation layers on both sides of the gap 313, the gap is closed, and the first insulating layer 310 is in a closed state; when the tooth shoe insulating layers 313 on both sides of the gap are separated, the gap is opened, and the first insulating layer 310 is in an open state.
  • the position of the above-mentioned notch is often set at the position of the notch 121 between the tooth shoe insulation layer 313 and the stator slot 120 .
  • the first insulating layer 310 further includes the above-mentioned bending line 314 .
  • the bending line 314 extends along the axial direction of the stator slot 120 and is set on the first insulating layer 310, so when the position of the first insulating layer 310 provided with the bending line 314 is bent along the bending line 314, the gap is opened or closed accordingly. , so as to achieve the purpose of making the first insulating layer 310 in an open state or making the first insulating layer 310 in a closed state.
  • the position of the bending line 314 can be selected in many ways, and more than one bending line 314 can be set on the same first insulating layer 310. In this embodiment, the bending line 314 can be set on the yoke insulating layer 311. meet actual needs.
  • the stator core 100 includes a plurality of segmented stamping pieces 130 .
  • the above-mentioned multiple block punching pieces 130 can be spliced together to form the stator core 100 along the circumferential direction of the stator; when the multiple block punching sheets 130 are in an unjoined state, the first insulating layer 310 It is located in the stator slot 120 and is in an open state; when a plurality of block punches 130 are wound and put together, the first insulating layer 310 is bent along the bending line 314, and the first free part of the tooth shoe insulating layer 313 The end 316 can coincide with the second free end 317 so that the first insulating layer 310 is closed into a closed structure.
  • the stator core 100 includes the above-mentioned plurality of segment punches 130, and all the segment punches 130 are sequentially connected along the circumferential direction of the stator to form a complete stator core together. 100.
  • the stator core 100 composed of a plurality of segmented iron cores can complete the winding of the stator winding 200 in a segmented state, and after the winding is completed, the plurality of segmented iron cores are assembled into one Complete stator core 100.
  • the distance between two adjacent block punches 130 is relatively large, and the two block punches 130
  • the space between the stator teeth 110 is greater than the space of the stator slots 120 after the final splicing. Therefore, the gap provided in the first insulating layer 310 can make the first insulating layer 310 between the two stator teeth 110 open. state.
  • stator winding 200 When the first insulating layer 310 is in the open state, there is sufficient operating space for the stator winding 200 to be wound on the stator tooth 110 and the first insulating layer 310 on both sides of the stator tooth 110 according to actual needs, wherein, it is wound on a stator
  • the stator winding 200 of the tooth 110 is accommodated in the space surrounded by the second insulating layer 320 and part of the first insulating layer 310, and the stator winding 200 wound on the adjacent stator tooth 110 is only wound on part of the first insulating layer 310 outside.
  • the distance between two adjacent stator teeth 110 is reduced, and the first insulating layer 310 located between the two stator teeth 110 is bent along the bending line 314 until the splicing is completed.
  • the first insulating layer 310 is located in a complete stator slot 120, and the first free end 316 of the tooth shoe insulating layer 313 of the first insulating layer 310 coincides with the second free end 317, and the tooth shoe insulating layer 313
  • the gap is closed, so that the first insulating layer 310 is in a closed state, and the stator winding 200 wound on a stator tooth 110 is still accommodated in the space enclosed by the second insulating layer 320 and part of the first insulating layer 310, and is wound on the
  • the stator windings 200 of the adjacent stator teeth 110 are close to another part of the windings and separated by the second insulating layer 320 .
  • the bending line 314 protrudes from the inner surface of the yoke insulating layer 311 .
  • the bending line 314 is set on the yoke insulating layer 311 and protrudes from the inner surface of the yoke insulating layer 311, and the first insulating layer 310 is bent along the bending line 314 to form a notch. Therefore, in the embodiment provided by the technical solution, when the first insulating layer 310 is in the closed state, the yoke insulating layer 311 is bent and protrudes along the bending line 314 .
  • the insulating layer further includes a third insulating layer 330 .
  • One end of the third insulating layer 330 is connected to the first insulating layer 310 , and the other end of the third insulating layer 330 extends to the inside of the first region 315 of the two regions.
  • the first insulating layer 310 is located in the stator slot 120, the first insulating layer 310 encloses a space, both ends of the second insulating layer 320 are connected to the first insulating layer 310, and the second insulating layer 320 The second insulating layer 320 separates the space formed by the first insulating layer 310 into two regions.
  • one end of the third insulating layer 330 is connected to the first insulating layer 310, and the other end of the third insulating layer 330 extends into the space enclosed by the first insulating layer 310, which means that the third insulating layer 330
  • One of the two regions protrudes, and for convenience of distinction, the region into which the third insulating layer 330 protrudes is referred to as the first region 315 .
  • one end of the second insulating layer 320 is connected to the bending line 314, and the other end of the second insulating layer 320 is connected to the first end of the tooth shoe insulating layer 313.
  • the free end 316 is connected; the third insulating layer 330 is connected to the second free end 317 of the tooth shoe insulating layer 313 .
  • the second insulating layer 320 is located inside the space surrounded by the first insulating layer 310 and divides the space into two regions. One end of the second insulating layer 320 is connected to the yoke insulating layer On the bending line 314 provided on 311, the other end of the second insulating layer 320 is connected to the first free end 316 of the tooth shoe insulating layer 313, so that the two regions separated by the second insulating layer 320 are equal in size, A substantially equal number of windings can be wound in the two regions.
  • one end of the third insulating layer 330 is connected to the second free end 317 of the tooth shoe insulating layer 313 , and the other end extends into the first region 315 isolated by the second insulating layer 320 .
  • the gap is closed, the first free end 316 of the yoke insulating layer 311 coincides with the second free end 317 , and the above-mentioned first insulating layer 310 forms a relatively closed structure.
  • connection between the third insulating layer 330 and the second free end 317 is against the connection between the second insulating layer 320 and the first free end 316 , and the free end of the third insulating layer 330 extends into the first region 315 , at this moment, due to the contact between the third insulating layer 330 and the second insulating layer 320, the part of the tooth shoe part insulation layer 313 where the second free end 317 is located can be tightly connected to the part of the tooth shoe part where the first free end 316 is located.
  • the upper insulating layer 313 is tightly connected, and the first free end 316 can also be firmly overlapped with the second free end 317, so that part of the tooth shoe insulating layer 313 where the second free end 317 is located will not move due to vibration and other reasons during the working process , the first free end 316 and the second free end 317 are easily decoupled, the gap is reopened, and the first insulating layer 310 cannot continue to play the role of slot insulation, affecting the normal operation of the stator.
  • the gap is closed, and the space surrounded by the first insulating layer 310 is divided into two regions by the second insulating layer 320.
  • the first free end 316 of the tooth shoe insulating layer 313 and the second The two free ends 317 overlap, the connection between the third insulating layer 330 and the second free end 317 is against the connection between the second insulating layer 320 and the first free end 316, the third insulating layer 330 extends into the first region 315, and the same
  • the space in the first insulating layer 310 is penetrated by two adjacent stator windings 200 , and the two stator windings 200 are separated by the second insulating layer 320 and respectively penetrate two regions, so as to realize the effect of phase insulation.
  • the first insulating layer 310, the second insulating layer 320, and the third insulating layer 330 all belong to the same insulating layer 300 as a whole, and the insulating layer 300 is divided into three parts as a whole, wherein the first part and the third part are located at both ends of the second part.
  • the first part that is, the second insulating layer 320 is bent and connected to the second part of the entire insulating layer 300, that is, the middle position of the first insulating layer 310, so that the space enclosed by the first insulating layer 310 is
  • the second insulating layer 320 separates two regions; the third part, that is, one end of the third insulating layer 330 extends into the space enclosed by the first insulating layer 310 as a free end; the two ends of the second part are connected and overlapped, and The junction of the first part and the second part abuts the junction of the second part and the third part.
  • the extension directions of the third insulating layer 330 and the second insulating layer 320 are different.
  • one end of the third insulating layer 330 is connected to the second free end 317 , and the other end extends into the first region 315 .
  • the first free end 316 coincides with the second free end 317, and the connection between the third insulating layer 330 and the second free end 317 is against the second insulating layer 320 and the first free end 316. Due to the tightness between the third insulating layer 330 and the second insulating layer 320, the part of the tooth shoe insulation layer 313 where the second free end 317 is located can be tightly connected to the part of the tooth shoe where the first free end 316 is located.
  • the outer insulating layer 313 is tightly connected, and the first free end 316 can also be firmly overlapped with the second free end 317, so that the gap will not be easily opened.
  • the extension direction of the third insulating layer 330 is the same as that of the second insulating layer 320, the second insulating layer 320 and the third insulating layer 330 are parallel to each other, and the interaction force between the two is very small, and the effect of abutment is poor. .
  • the length of the second insulating layer 320 is L1
  • the length of the third insulating layer 330 is L2
  • the relationship between L1 and L2 satisfies: 0mm ⁇ L2 ⁇ 0.5 ⁇ L1.
  • both the second insulating layer 320 and the third insulating layer 330 are disposed in the space surrounded by the first insulating layer 310 and connected to the first insulating layer 310, the second insulating layer 320 will This space is divided into two areas, one end of the second insulating layer 320 is connected to the bending line 314 provided on the yoke insulating layer 311, and the other end of the second insulating layer 320 is connected to the first free edge of the shoe insulating layer 313.
  • the second insulating layer 320 is longer than the third insulating layer 330 regardless of the special circumstances of the third insulating layer 330 being folded and curled.
  • the length of the second insulating layer 320 is referred to as L1
  • the length of the third insulating layer 330 is referred to as L2.
  • the value of L2 should not be too large, otherwise it will occupy the space in the first area 315 , which will bring difficulties to the assembly of the stator winding 200 , and also reduce the full slot rate in the stator slot 120 , affecting the performance of the motor 420 .
  • the requirement for the length of L2 is: 0mm ⁇ L2 ⁇ 0.5 ⁇ L1.
  • the third insulating layer 330 can occupy the smallest space in the first region 315 when the third insulating layer 330 fully exerts its function, reducing the need for installing the stator winding 200 , and increase the full slot rate as much as possible.
  • the length of the third insulating layer 330 is L2
  • the width of the notch 121 of the stator slot 120 is W
  • the relationship between W and L2 satisfies: L2 ⁇ 0.5 ⁇ W.
  • the length of the third insulating layer 330 is set as L2
  • the width of the notch 121 of the stator slot 120 is set as W. Since the first insulating layer 310 needs to be clamped by a pair of tooth shoes close to each other to work normally, the width W of the notch 121 should not be too large.
  • the width W of the notch 121 and the length L2 of the third insulating layer 330 are limited, specifically: L2 ⁇ 0.5 ⁇ W.
  • the embodiment of the present application also proposes a motor 420 , and the motor 420 includes a stator and a rotor according to any one of the above embodiments.
  • the above-mentioned rotor is provided in the above-mentioned stator.
  • the main components of the motor 420 are a fixed stator and a rotatable rotor. Driven by the electromagnetic force generated after the stator is energized, the rotor starts to rotate and drives the related equipment connected to the rotor to work. As shown in FIG. 4 , compared with the motor 420 in the existing solution, the motor 420 installed with any one of the stators in the above embodiments has higher motor efficiency. In one embodiment, the motor efficiency of a certain existing motor 420 is 94.62%, and after replacing a stator in the above embodiment, the motor efficiency of the motor 420 provided by this embodiment increases to 94.81%.
  • the motor 420 proposed in this application includes the stator as in any one of the above-mentioned embodiments. Therefore, the above-mentioned motor 420 has all the beneficial effects of the above-mentioned stator, which will not be discussed one by one here.
  • the embodiment of the present application also proposes a compressor 400, and the compressor 400 includes the motor 420 as proposed in the above embodiment.
  • the compressor 400 proposed in this application includes the motor 420 as in the above-mentioned embodiments. Therefore, the above-mentioned compressor 400 has all the beneficial effects of the above-mentioned motor 420, which will not be discussed one by one here.
  • the above-mentioned compressor 400 is provided with the motor 420 in the above-mentioned embodiment, and also includes a housing 410, a crankshaft 430, a main bearing 440, a cylinder 450, a piston 460, an auxiliary bearing 470 and a liquid accumulator 480 .
  • the embodiment of the present application also proposes a refrigeration device, and the refrigeration device includes the motor 420 as proposed in the above embodiment, or the compressor 400 as proposed in the above embodiment.
  • Refrigeration equipment is a typical electrical equipment that needs to use the motor 420 .
  • Conventional refrigeration equipment needs to use compressor 400, and there are only a few special refrigeration equipment without compressor 400, but the motor 420 directly drives other types of equipment to cool down and refrigerate.
  • the refrigerating equipment proposed in this application includes the motor 420 in the above embodiments, or the compressor 400 in the above embodiments. Therefore, the above-mentioned refrigerating equipment has the above-mentioned motor 420 , or all the beneficial effects of the above-mentioned compressor 400 will not be discussed one by one here.
  • connection means two or more, unless otherwise clearly defined.
  • connection can be fixed connection, detachable connection, or integral connection; “connection” can be directly or indirectly through an intermediary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

本申请提供了定子、电机、压缩机和制冷设备。上述定子包括：定子铁芯，定子铁芯包括多个间隔设置的定子齿，相邻的两个定子齿之间形成定子槽；定子绕组，绕设于定子齿，定子绕组的至少一部分位于定子槽内；绝缘层，设于定子槽内，并位于定子绕组和定子齿之间，绝缘层将定子槽分隔为两个区域，绕设于不同定子齿的定子绕组位于绝缘层的两个区域内。其中，绝缘层包括：第一绝缘层，用于间隔定子绕组与定子齿；第二绝缘层，用于间隔绕设于不同定子齿的定子绕组，第二绝缘层的两端分别连接于第一绝缘层，以将第一绝缘层围合的空间分隔为两个区域。本申请提供的定子提高了定子的满槽率，提升了定子安装的效率。

Description

定子、电机、压缩机和制冷设备
本申请要求于2021年12月03日提交中国专利局、申请号为“202111468259.5”、发明名称为“定子、电机、压缩机和制冷设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电机制造技术领域，具体而言，涉及一种定子、电机、压缩机和制冷设备。
背景技术
电机作为现代工业最重要的成果之一，被广泛应用在各行各业的无数种设备当中，并有着不可替代的作用。在电机运行时，为使电机正常运行不被自身的电磁干扰，电机定子内往往需要添加绝缘件以起到槽绝缘的作用，同时还要添加相间绝缘件以起到相绝缘的作用，因此，用于绝缘的部件数量多且结构复杂，占用电机的槽空间，降低了电机的满槽率，进而影响电机的效果。
发明内容
本申请旨在解决现有技术或相关技术中存在的技术问题之一。
为此，本申请的第一方面提出了一种定子。
本申请的第二方面提出了一种电机。
本申请的第三方面提出了一种压缩机。
本申请的第四方面提出了一种制冷设备。
本申请的第一方面提供的定子包括：定子铁芯、定子绕组和绝缘层。上述定子铁芯包括多个间隔设置的定子齿，相邻的两个定子齿之间形成定子槽；上述定子绕组，绕设于定子齿，定子绕组的至少一部分位于定子槽内；上述绝缘层设于定子槽内，并位于定子绕组和定子齿之间，绝缘层将定子槽分隔为两个区域，绕设于不同定子齿的定子绕组位于绝缘层的两个 区域内。
具体而言，定子绕组设置在定子铁芯上，定子铁芯大体呈管状结构，定子铁芯上设置有多个定子齿和定子槽，定子齿向定子铁芯内部空心处凸出，每两个定子齿之间间隔定子槽设置，每个定子槽都由该定子槽两侧的定子齿夹合而成。
进一步地，定子绕组是指绕设定子上的绕线，是采用某种导电性能良好的材料制成的导电线，比如铜线，缠绕一固定部件形成的线圈，具体地，定子绕组缠绕在定子齿上并从该定子齿两侧的定子槽内穿过，进而设置在定子铁芯上。由于定子绕组缠绕在定子齿上导电线的材质、尺寸、位置以及匝数均会对定子的性能产生直接的影响，因此，在定子的制造与装配时，需要尽可能的在定子齿上绕设更多绕线，提高电机的满槽率进而提高电机性能。
进一步地，定子槽内部设置有绝缘层。电机是基于工作磁场对电流受力的作用，进而将电能转化为机械能这一原理进行工作的，因此，电机在工作时会通过较大的电流并形成强度较大的磁场。为使电机正常工作，电机内部各个组成部分之间往往需要绝缘处理，在定子槽内部设置绝缘层就是其中一种绝缘处理的方法。绝缘层将定子绕组与定子齿隔离开，使定子绕组和定子齿之间绝缘，即达到槽绝缘的效果；同时，同一个定子槽被绝缘层分隔成两个区域，绕设在不同定子齿上的两部分定子绕组在穿过同一个定子槽时被绝缘层隔离开，使相邻的两个定子绕组之间实现绝缘，即相绝缘也即该绝缘层能够同时满足设置定子绕组与定子铁芯之间的槽绝缘，以及绕设在不同定子齿上的定子绕组的相绝缘。
具体地，上述定子由定子铁芯、定子绕组和绝缘层共同组成。其中，定子铁芯大体呈管状结构，定子铁芯上设置有定子齿和定子槽，定子齿间隔设置在定子铁芯的内壁并向内部空心凸出，相邻的两个定子齿之间为定子槽；定子绕组为绕设在定子上的导电线圈，定子绕组绕设在定子齿上并贯穿该定子齿两侧的定子槽，在不影响正常工作的条件下，为使定子的性能达到最优，定子绕组的线圈匝数要尽可能多，定子绕组也要尽可能多的占据定子槽内的空间；绝缘层设置在定子铁芯的定子槽内，贴合定子槽内 壁并围合出一个空间，在绕设定子绕组时，定子绕组贯穿定子齿两侧的绝缘层所围合出的空间绕设在该定子齿上，该定子齿两侧的绝缘层用于在定子绕组与该定子绕组所绕设的定子齿间实现槽绝缘，而同一绝缘层内被分为两个区域，绕设在相邻两个定子齿的两个定子绕组分别贯穿上述两个区域中的一个，上述两个定子绕组被绝缘层隔离实现相绝缘，使得定子尽可能的在正常工作时避免被自身产生的电磁场干扰。
根据本申请提供上述的定子，还可以具有以下附加技术特征：
在上述技术方案中，进一步地，上述绝缘层包括第一绝缘层和第二绝缘层。上述第一绝缘层用于间隔定子绕组与定子齿；上述第二绝缘层用于间隔绕设于不同定子齿的定子绕组，第二绝缘层的两端分别连接于第一绝缘层，以将第一绝缘层围合的空间分隔为两个区域。
在该技术方案中，上述绝缘层包括第一绝缘层和第二绝缘层。具体地，第一绝缘层围绕定子槽设置，第一绝缘层与定子齿的侧壁贴合。在绕设定子绕组时，定子绕组贯穿第一绝缘层在定子槽内隔离出的空间并缠绕定子齿设置。定子绕组绕设完成后，定子绕组位于定子槽内的部分与定子齿间隔第一绝缘层，第一绝缘层位于定子绕组与定子齿之间，并将定子绕组与定子齿的侧壁间隔开，达到槽绝缘的效果。
进一步地，第二绝缘层位于第一绝缘层围合出的空间内部，并且第二绝缘层的两端均与第一绝缘层连接，将第一绝缘层所围合出的空间分隔成两个区域，两个区域的边缘分别紧靠着相邻的两个不同的定子齿。当绕设定子绕组时，相邻的两个定子绕组需要贯穿同一个第一绝缘层所围合出的空间，此时，两个定子绕组分别贯穿同一个第一绝缘层内不同的两个区域，第二绝缘层位于两个相邻的、绕设于不同定子齿的定子绕组之间，实现定子绕组之间的相绝缘。
在上述技术方案中，进一步地，第一绝缘层包括相连接的轭部绝缘层、齿部绝缘层和齿靴部绝缘层，以及弯折线。上述相连接的轭部绝缘层、齿部绝缘层和齿靴部绝缘层，齿靴部绝缘层具有缺口，以使得第一绝缘层能够打开或者闭合；上述弯折线沿定子的轴向延伸，弯折线设于轭部绝缘层，轭部绝缘层能够沿弯折线弯折。
在该技术方案中，上述第一绝缘层包括相连接的轭部绝缘层、齿部绝缘层和齿靴部绝缘层。第一绝缘层位于定子槽内部并围合成一个贴合定子槽的长管，这个长管的侧面分别是轭部绝缘层、齿部绝缘层和齿靴部绝缘层。其中，轭部绝缘层是第一绝缘层贴合定子槽底部，也是定子轭部内径的部分；齿部绝缘层是第一绝缘层贴合定子齿两侧侧壁的部分；齿靴部绝缘层是第一绝缘层贴合相邻两个定子齿齿靴的部分，并且齿靴部绝缘层上设置有一个缺口，当缺口两侧的齿靴部绝缘层连接，缺口被闭合，第一绝缘层处于闭合状态；当缺口两侧的齿靴部绝缘层分离，缺口被打开，第一绝缘层处于打开状态。上述缺口的位置并没有特殊要求，然而在实际工作中，为操作方便，往往将缺口的位置设置在齿靴部绝缘层与定子槽的槽口位置。
进一步地，在该技术方案中，第一绝缘层还包括上述弯折线。弯折线沿定子槽的轴向延伸设置在第一绝缘层上，因此当第一绝缘层设置有弯折线的位置沿弯折线进行弯折时，缺口随之被打开或关闭，以达到使第一绝缘层处于打开状态或使第一绝缘层处于闭合状态的目的。
进一步地，上述弯折线的设置位置可以有多种选择，并且同一第一绝缘层上可以设置不止一条弯折线，在本实施例中，弯折线设置在轭部绝缘层即可满足实际需要。
在上述技术方案中，进一步地，上述定子铁芯包括多个分块冲片。上述多个分块冲片，沿定子的周向，多个分块冲片能够拼接合成定子铁芯；在多个分块冲片处于未拼合的状态下，第一绝缘层位于定子槽内，并处于打开状态；在多个分块冲片完成绕线并处于拼合状态下，第一绝缘层沿弯折线弯折，齿靴部绝缘层的第一自由端能够与第二自由端重合以使得第一绝缘层闭合成封闭结构。
在该技术方案中，定子铁芯包括上述多个分块冲片，所有的分块冲片沿着定子的周向依次连接，就能共同拼合成一个完整的定子铁芯。通常情况下，由多个分块铁芯拼合成的定子铁芯，可以在分块状态下完成定子绕组的绕线，在完成绕线后，再将多个分块铁芯拼合成一个完整的定子铁芯。
具体地，在本实施例中，当多个分块冲片处于未拼合状态的情况下，相邻的两个分块冲片之间的距离较大，这两个分块冲片的定子齿之间的空 间要大于最终拼合后的定子槽的空间，因此，设置于第一绝缘层的缺口能够使得位于这两个定子齿之间的第一绝缘层处于打开状态。当第一绝缘层处于打开状态时，存在充足的操作空间使定子绕组根据实际需要绕设在定子齿以及定子齿两侧的第一绝缘层上，其中，绕设在一个定子齿的定子绕组容置于第二绝缘层和部分第一绝缘层围合的空间内，绕设在相邻的定子齿的定子绕组仅绕设在部分第一绝缘层之外。当分块定子完成拼合装配完成后，相邻的两个定子齿的间距减小，位于这两个定子齿之间的第一绝缘层沿弯折线弯折直到拼合完成，此时，上述第一绝缘层位于一个完整的定子槽内，并且这个第一绝缘层的齿靴部绝缘层的第一自由端与第二自由端重合，齿靴部绝缘层的缺口闭合，如此，第一绝缘层处于闭合状态，绕设在一个定子齿的定子绕组仍旧容置于第二绝缘层和部分第一绝缘层围合的空间内，绕设在相邻的定子齿的定子绕组与另一部分绕组靠近，并被第二绝缘层间隔。
在上述技术方案中，进一步地，上述弯折线凸出于轭部绝缘层的内表面设置。
在该技术方案中，上述弯折线设置在轭部绝缘层上，并且凸出于轭部绝缘层的内表面，第一绝缘层沿弯折线进行弯折从而进行缺口的打开或闭合，因此，在本技术方案提供的实施例中，当第一绝缘层处于闭合状态时，轭部绝缘层沿弯折线弯折并凸出。
在上述技术方案中，进一步地，上述绝缘层还包括第三绝缘层。上述第三绝缘层的一端与第一绝缘层连接，第三绝缘层的另一端向两个区域中的第一区域的内部延伸。
在该技术方案中，第一绝缘层位于定子槽内，第一绝缘层围合成一个空间，第二绝缘层的两端均连接在第一绝缘层上，并且第二绝缘层将第一绝缘层围合成的空间分隔成两个区域。具体地，上述第三绝缘层的一端连接在第一绝缘层上，第三绝缘层的另一端延伸进第一绝缘层围合成的空间内部，这就意味着第三绝缘层伸入了两个区域中的一个，为了方便区分，将第三绝缘层伸入的区域作为第一区域。
在上述技术方案中，进一步地，上述第二绝缘层的一端与弯折线连接， 第二绝缘层的另一端与齿靴部绝缘层的第一自由端连接；第三绝缘层与齿靴部绝缘层的第二自由端连接。
在该技术方案中，上述第二绝缘层位于第一绝缘层所围合成的空间内部并将此空间分隔成两个区域，第二绝缘层的一端连接在轭部绝缘层上设置的弯折线上，第二绝缘层的另一端连接在齿靴部绝缘层的第一自由端处，以使得由第二绝缘层分隔出的两个区域大小均等，能够在两个区域内绕设数量基本一致的绕组。
进一步地，上述第三绝缘层一端与齿靴部绝缘层的第二自由端连接，另一端则伸入被第二绝缘层隔离出的第一区域里。在缺口闭合的情况下，轭部绝缘层的第一自由端与第二自由端重合，上述第一绝缘层围合成一个相对封闭的结构。
进一步地，上述第三绝缘层与第二自由端的连接处抵紧第二绝缘层与第一自由端的连接处，第三绝缘层的自由端延伸进第一区域内部，此时，第二自由端所在的部分齿靴部绝缘层由于第三绝缘层与第二绝缘层之间的抵紧，能够紧密的与第一自由端所在的部分齿靴部绝缘层紧密连接，第一自由端也可以和第二自由端牢固重合，不会出现在工作过程中第二自由端所在的部分齿靴部绝缘层由于振动等原因发生移动，第一自由端与第二自由端轻易地被解除重合，缺口重新打开，第一绝缘层无法继续起到槽绝缘的效果，影响定子的正常运行。
进一步地，在定子绕组安装完成后，缺口闭合，第一绝缘层所围合成的空间被第二绝缘层分隔为两个区域，齿靴部绝缘层的第一自由端和第二自由端重合，第三绝缘层与第二自由端的连接处抵紧第二绝缘层与第一自由端的连接处，第三绝缘层延伸进第一区域，同一第一绝缘层内的空间被两个相邻的定子绕组贯穿，两个定子绕组被第二绝缘层所隔离并分别贯穿两个区域，实现相绝缘的效果。
在上述技术方案中，进一步地，上述第三绝缘层与第二绝缘层的延伸方向不相同。
在该技术方案中，上述第三绝缘层的一端连接在第二自由端上，另一端延伸进第一区域。具体地，在缺口闭合的情况下，第一自由端与第二自 由端重合，第三绝缘层与第二自由端的连接处抵紧第二绝缘层与第一自由端的连接处，第二自由端所在的部分齿靴部绝缘层由于第三绝缘层与第二绝缘层之间的抵紧，能够紧密的与第一自由端所在的部分齿靴部绝缘层紧密连接，第一自由端也可以和第二自由端牢固重合，不会轻易打开缺口。然而，如果第三绝缘层与第二绝缘层的延伸方向相同，则第二绝缘层和第三绝缘层相互平行，两者之间的相互作用力非常小，抵紧的效果差。为避免这种情况的出现，需要设置第三绝缘层在第一区域内的延伸方向，使第三绝缘层的延伸方向与第二绝缘层的延伸方向不相同，增强第二绝缘层与第三绝缘层抵紧处的相互作用力，使得第一自由端与第二自由端的重合处更紧密。
在上述技术方案中，进一步地，上述第二绝缘层的长度为L1，第三绝缘层的长度为L2，L1和L2之间的关系满足：0mm＜L2＜0.5×L1。
在该技术方案中，上述第二绝缘层与第三绝缘层均设置在第一绝缘层所围合成的空间内且与第一绝缘层相连，第二绝缘层将此空间分隔成两个区域，第二绝缘层的一端连接在轭部绝缘层上设置的弯折线上，第二绝缘层的另一端连接在齿靴部绝缘层的第一自由端处，而第三绝缘层一端与齿靴部绝缘层的第二自由端连接，另一端则伸入被第二绝缘层隔离出的第一区域里。由此可以得出，不考虑第三绝缘层折叠和卷曲的特殊情况，第二绝缘层要比第三绝缘层长。
具体地，将第二绝缘层的长度作为L1，第三绝缘层的长度作为L2。L2的值不宜过大，否则会占据第一区域内的空间，为定子绕组的装配带来困难，也降低了定子槽内的满槽率，影响电机性能。具体地，本技术方案所提供的实施例中，对L2的长度要求为：0mm＜L2＜0.5×L1。当L2的长度属于上述长度范围内时，能够在第三绝缘层充分的发挥其作用的情况下，使第三绝缘层在第一区域内占据最小的空间，减少对安装定子绕组的影响，并尽可能的增加满槽率。
在上述技术方案中，进一步地，上述第三绝缘层的长度为L2，定子槽的槽口宽度为W，W和L2之间的关系满足：L2≥0.5×W。
在该技术方案中，将第三绝缘层的长度设定为L2，将定子槽的槽口宽 度设定为W。由于第一绝缘层需要在一对相互靠近的齿靴夹紧下才能正常工作，所以，槽口的宽度W不宜过大。而在第一绝缘层由打开状态转化为闭合状态的过程中，一对相互靠近的齿靴不断接近，如果第三绝缘层的长度L2比与槽口的宽度W小，或者两者尺寸比较接近时，第三绝缘层很容易从槽口处滑出，第一区域内不再保持仅在沿定子轴向的两端与外界连通，无法实现槽绝缘的效果。在本技术方案提出的实施例中，对槽口的宽度W以及第三绝缘层的长度L2进行限定，具体为：L2≥0.5×W。
根据本申请的第二方面，还提出了一种电机，上述电机包括如上述技术方案中任一项定子和转子。上述转子设置在上述定子内。
电机的主要组成部分为固定设置的定子，以及转动设置在转子。在定子通电后所产生电磁力的驱动下，转子开始转动并带动与转子连接的相关设备进行工作。
本申请提出的电机包括如上述任一技术方案的定子。因此，上述电机具有上述定子的全部有益效果，在此不再一一论述。
根据本申请的第三方面，还提出了一种压缩机，上述压缩机包括如上述方案中所提出的电机。
本申请提出的压缩机包括如上述技术方案的电机。因此，上述压缩机具有上述电机的全部有益效果，在此不再一一论述。
根据本申请的第四方面，还提出了一种制冷设备，上述制冷设备包括如上述方案中所提出的电机，或者，如上述方案中所提出的压缩机。
制冷设备是一种典型的需要使用电机的电器设备。常规的制冷设备需要使用压缩机，只有仅仅很少的特殊制冷设备，并没有设置压缩机，而是直接由电机带动其他种类的设备进行降温制冷。
本申请提出的制冷设备包括如上述技术方案的电机，或者，如上述技术方案的压缩机。因此，上述制冷设备具有上述电机，或者，上述压缩机的全部有益效果，在此不再一一论述。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1示出了本申请的实施例中定子的结构示意图；
图2示出了本申请的实施例中相邻两个定子齿的结构示意图之一；
图3示出了本申请的实施例中相邻两个定子齿的结构示意图之二；
图4示出了本申请实施例提供的电机与现有技术电机效率对比图；
图5示出了本申请的实施例中压缩机的结构示意图。
其中，图1至图5中附图标记与部件名称之间的对应关系为：
100定子铁芯，110定子齿，120定子槽，121槽口，130分块冲片；200定子绕组；300绝缘层，310第一绝缘层，311轭部绝缘层，312齿部绝缘层，313齿靴部绝缘层，314弯折线，315第一区域，316第一自由端，317第二自由端，320第二绝缘层，330第三绝缘层；400压缩机，410壳体，420电机，430曲轴，440主轴承，450气缸，460活塞，470副轴承，480储液器。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图5描述根据本申请的一些实施例提供的定子、电机、压缩机和制冷设备。
如图1和图3所示，根据本申请的第一方面提出的定子包括：定子铁芯100、定子绕组200和绝缘层300。上述定子铁芯100包括多个间隔设置的定子齿110，相邻的两个定子齿110之间形成定子槽120；上述定子绕组200，绕设于定子齿110，定子绕组200的至少一部分位于定子槽120内； 上述绝缘层300设于定子槽120内，并位于定子绕组200和定子齿110之间，绝缘层300将定子槽120分隔为两个区域，绕设于不同定子齿110的定子绕组200位于绝缘层300的两个区域内。
具体而言，定子绕组200设置在定子铁芯100上，定子铁芯100大体呈管状结构，定子铁芯100上设置有多个定子齿110和定子槽120，定子齿110向定子铁芯100内部空心处凸出，每两个定子齿110之间间隔定子槽120设置，每个定子槽120都由该定子槽120两侧的定子齿110夹合而成。
进一步地，定子绕组200是指绕设定子上的绕线，是采用某种导电性能良好的材料制成的导电线，比如铜线，缠绕一固定部件形成的线圈，具体地，定子绕组200缠绕在定子齿110上并从该定子齿110两侧的定子槽120内穿过，进而设置在定子铁芯100上。由于定子绕组200缠绕在定子齿110上导电线的材质、尺寸、位置以及匝数均会对定子的性能产生直接的影响，因此，在定子的制造与装配时，需要尽可能的在定子齿110上绕设更多绕线，提高电机420的满槽率进而提高电机420性能。
进一步地，定子槽120内部设置有绝缘层300。电机420是基于工作磁场对电流受力的作用，进而将电能转化为机械能这一原理进行工作的，因此，电机420在工作时会通过较大的电流并形成强度较大的磁场。为使电机420正常工作，电机420内部各个组成部分之间往往需要绝缘处理，在定子槽120内部设置绝缘层300就是其中一种绝缘处理的方法。绝缘层300将定子绕组200与定子齿110隔离开，使定子绕组200和定子齿110之间绝缘，即达到槽绝缘的效果；同时，同一个定子槽120被绝缘层300分隔成两个区域，绕设在不同定子齿110上的两部分定子绕组200在穿过同一个定子槽120时被绝缘层300隔离开，使相邻的两个定子绕组200之间实现绝缘，即相绝缘也即该绝缘层300能够同时满足设置定子绕组200与定子铁芯100之间的槽绝缘，以及绕设在不同定子齿110上的定子绕组200的相绝缘。
具体地，上述定子由定子铁芯100、定子绕组200和绝缘层300共同组成。其中，定子铁芯100大体呈管状结构，定子铁芯100上设置有定子 齿110和定子槽120，定子齿110间隔设置在定子铁芯100的内壁并向内部空心凸出，相邻的两个定子齿110之间为定子槽120；定子绕组200为绕设在定子上的导电线圈，定子绕组200绕设在定子齿110上并贯穿该定子齿110两侧的定子槽120，在不影响正常工作的条件下，为使定子的性能达到最优，定子绕组200的线圈匝数要尽可能多，定子绕组200也要尽可能多的占据定子槽120内的空间；绝缘层300设置在定子铁芯100的定子槽120内，贴合定子槽120内壁并围合出一个空间，在绕设定子绕组200时，定子绕组200贯穿定子齿110两侧的绝缘层300所围合出的空间绕设在该定子齿110上，该定子齿110两侧的绝缘层300用于在定子绕组200与该定子绕组200所绕设的定子齿110间实现槽绝缘，而同一绝缘层300内被分为两个区域，绕设在相邻两个定子齿110的两个定子绕组200分别贯穿上述两个区域中的一个，上述两个定子绕组200被绝缘层300隔离实现相绝缘，使得定子尽可能的在正常工作时避免被自身产生的电磁场干扰。
根据本申请提供上述的定子，还可以具有以下附加技术特征：
如图1、图2和图3所示，在此实施例中，上述绝缘层300包括第一绝缘层310和第二绝缘层320。上述第一绝缘层310用于间隔定子绕组200与定子齿110；上述第二绝缘层320用于间隔绕设于不同定子齿110的定子绕组200，第二绝缘层320的两端分别连接于第一绝缘层310，以将第一绝缘层310围合的空间分隔为两个区域。
再一些可能地实施例中，上述绝缘层300包括第一绝缘层310和第二绝缘层320。具体地，第一绝缘层310围绕定子槽120设置，第一绝缘层310与定子齿110的侧壁贴合。在绕设定子绕组200时，定子绕组200贯穿第一绝缘层310在定子槽120内隔离出的空间并缠绕定子齿110设置。定子绕组200绕设完成后，定子绕组200位于定子槽120内的部分与定子齿110间隔第一绝缘层310，第一绝缘层310位于定子绕组200与定子齿110之间，并将定子绕组200与定子齿110的侧壁间隔开，达到槽绝缘的效果。
进一步地，第二绝缘层320位于第一绝缘层310围合出的空间内部，并且第二绝缘层320的两端均与第一绝缘层310连接，将第一绝缘层310 所围合出的空间分隔成两个区域，两个区域的边缘分别紧靠着相邻的两个不同的定子齿110。当绕设定子绕组200时，相邻的两个定子绕组200需要贯穿同一个第一绝缘层310所围合出的空间，此时，两个定子绕组200分别贯穿同一个第一绝缘层310内不同的两个区域，第二绝缘层320位于两个相邻的、绕设于不同定子齿110的定子绕组200之间，实现定子绕组200之间的相绝缘。
具体在本实施例中，第一绝缘层310和第二绝缘层320均属于同一个绝缘层300整体，该绝缘层300整体一部分，即第二绝缘层320进行弯折后连接在该绝缘层300整体的另一部分，即第一绝缘层310的中间位置上，进而使第一绝缘层310所围合出的空间被第二绝缘层320分隔出两个区域。
如图1、图2和图3所示，在此实施例中，第一绝缘层310包括相连接的轭部绝缘层311、齿部绝缘层312和齿靴部绝缘层313，以及弯折线314。上述相连接的轭部绝缘层311、齿部绝缘层312和齿靴部绝缘层313，齿靴部绝缘层313具有缺口，以使得第一绝缘层310能够打开或者闭合；上述弯折线314沿定子的轴向延伸，弯折线314设于轭部绝缘层311，轭部绝缘层311能够沿弯折线314弯折。
在一种可能的实施例中，上述第一绝缘层310包括相连接的轭部绝缘层311、齿部绝缘层312和齿靴部绝缘层313。第一绝缘层310位于定子槽120内部并围合成一个贴合定子槽120的长管，这个长管的侧面分别是轭部绝缘层311、齿部绝缘层312和齿靴部绝缘层313。其中，轭部绝缘层311是第一绝缘层310贴合定子槽120底部，也是定子轭部内径的部分；齿部绝缘层312是第一绝缘层310贴合定子齿110两侧侧壁的部分；齿靴部绝缘层313是第一绝缘层310贴合相邻两个定子齿110齿靴的部分，并且齿靴部绝缘层313上设置有一个缺口，当缺口两侧的齿靴部绝缘层313连接，缺口被闭合，第一绝缘层310处于闭合状态；当缺口两侧的齿靴部绝缘层313分离，缺口被打开，第一绝缘层310处于打开状态。上述缺口的位置并没有特殊要求，然而在实际工作中，为操作方便，往往将缺口的位置设置在齿靴部绝缘层313与定子槽120的槽口121位置。
进一步地，在该实施例中，第一绝缘层310还包括上述弯折线314。弯 折线314沿定子槽120的轴向延伸设置在第一绝缘层310上，因此当第一绝缘层310设置有弯折线314的位置沿弯折线314进行弯折时，缺口随之被打开或关闭，以达到使第一绝缘层310处于打开状态或使第一绝缘层310处于闭合状态的目的。
进一步地，上述弯折线314的设置位置可以有多种选择，并且同一第一绝缘层310上可以设置不止一条弯折线314，在本实施例中，弯折线314设置在轭部绝缘层311即可满足实际需要。
如图1、图2和图3所示，在此实施例中，上述定子铁芯100包括多个分块冲片130。上述多个分块冲片130，沿定子的周向，多个分块冲片130能够拼接合成定子铁芯100；在多个分块冲片130处于未拼合的状态下，第一绝缘层310位于定子槽120内，并处于打开状态；在多个分块冲片130完成绕线并处于拼合状态下，第一绝缘层310沿弯折线314弯折，齿靴部绝缘层313的第一自由端316能够与第二自由端317重合以使得第一绝缘层310闭合成封闭结构。
在一种可能的实施例中，定子铁芯100包括上述多个分块冲片130，所有的分块冲片130沿着定子的周向依次连接，就能共同拼合成一个完整的定子铁芯100。通常情况下，由多个分块铁芯拼合成的定子铁芯100，可以在分块状态下完成定子绕组200的绕线，在完成绕线后，再将多个分块铁芯拼合成一个完整的定子铁芯100。
具体地，在本实施例中，当多个分块冲片130处于未拼合状态的情况下，相邻的两个分块冲片130之间的距离较大，这两个分块冲片130的定子齿110之间的空间要大于最终拼合后的定子槽120的空间，因此，设置于第一绝缘层310的缺口能够使得位于这两个定子齿110之间的第一绝缘层310处于打开状态。当第一绝缘层310处于打开状态时，存在充足的操作空间使定子绕组200根据实际需要绕设在定子齿110以及定子齿110两侧的第一绝缘层310上，其中，绕设在一个定子齿110的定子绕组200容置于第二绝缘层320和部分第一绝缘层310围合的空间内，绕设在相邻的定子齿110的定子绕组200仅绕设在部分第一绝缘层310之外。当分块定子完成拼合装配完成后，相邻的两个定子齿110的间距减小，位于这两个 定子齿110之间的第一绝缘层310沿弯折线314弯折直到拼合完成，此时，上述第一绝缘层310位于一个完整的定子槽120内，并且这个第一绝缘层310的齿靴部绝缘层313的第一自由端316与第二自由端317重合，齿靴部绝缘层313的缺口闭合，如此，第一绝缘层310处于闭合状态，绕设在一个定子齿110的定子绕组200仍旧容置于第二绝缘层320和部分第一绝缘层310围合的空间内，绕设在相邻的定子齿110的定子绕组200与另一部分绕组靠近，并被第二绝缘层320间隔。
如图1和图3所示，在此实施例中，上述弯折线314凸出于轭部绝缘层311的内表面设置。
在一种可能的实施例中，上述弯折线314设置在轭部绝缘层311上，并且凸出于轭部绝缘层311的内表面，第一绝缘层310沿弯折线314进行弯折从而进行缺口的打开或闭合，因此，在本技术方案提供的实施例中，当第一绝缘层310处于闭合状态时，轭部绝缘层311沿弯折线314弯折并凸出。
如图1、图2和图3所示，在此实施例中，上述绝缘层还包括第三绝缘层330。上述第三绝缘层330的一端与第一绝缘层310连接，第三绝缘层330的另一端向两个区域中的第一区域315的内部延伸。
在一种可能的实施例中，第一绝缘层310位于定子槽120内，第一绝缘层310围合成一个空间，第二绝缘层320的两端均连接在第一绝缘层310上，并且第二绝缘层320将第一绝缘层310围合成的空间分隔成两个区域。具体地，上述第三绝缘层330的一端连接在第一绝缘层310上，第三绝缘层330的另一端延伸进第一绝缘层310围合成的空间内部，这就意味着第三绝缘层330伸入了两个区域中的一个，为了方便区分，将第三绝缘层330伸入的区域作为第一区域315。
如图1、图2和图3所示，在此实施例中，上述第二绝缘层320的一端与弯折线314连接，第二绝缘层320的另一端与齿靴部绝缘层313的第一自由端316连接；第三绝缘层330与齿靴部绝缘层313的第二自由端317连接。
在一种可能的实施例中，上述第二绝缘层320位于第一绝缘层310所 围合成的空间内部并将此空间分隔成两个区域，第二绝缘层320的一端连接在轭部绝缘层311上设置的弯折线314上，第二绝缘层320的另一端连接在齿靴部绝缘层313的第一自由端316处，以使得由第二绝缘层320分隔出的两个区域大小均等，能够在两个区域内绕设数量基本一致的绕组。
进一步地，上述第三绝缘层330一端与齿靴部绝缘层313的第二自由端317连接，另一端则伸入被第二绝缘层320隔离出的第一区域315里。在缺口闭合的情况下，轭部绝缘层311的第一自由端316与第二自由端317重合，上述第一绝缘层310围合成一个相对封闭的结构。
进一步地，上述第三绝缘层330与第二自由端317的连接处抵紧第二绝缘层320与第一自由端316的连接处，第三绝缘层330的自由端延伸进第一区域315内部，此时，第二自由端317所在的部分齿靴部绝缘层313由于第三绝缘层330与第二绝缘层320之间的抵紧，能够紧密的与第一自由端316所在的部分齿靴部绝缘层313紧密连接，第一自由端316也可以和第二自由端317牢固重合，不会出现在工作过程中第二自由端317所在的部分齿靴部绝缘层313由于振动等原因发生移动，第一自由端316与第二自由端317轻易地被解除重合，缺口重新打开，第一绝缘层310无法继续起到槽绝缘的效果，影响定子的正常运行。
进一步地，在定子绕组200安装完成后，缺口闭合，第一绝缘层310所围合成的空间被第二绝缘层320分隔为两个区域，齿靴部绝缘层313的第一自由端316和第二自由端317重合，第三绝缘层330与第二自由端317的连接处抵紧第二绝缘层320与第一自由端316的连接处，第三绝缘层330延伸进第一区域315，同一第一绝缘层310内的空间被两个相邻的定子绕组200贯穿，两个定子绕组200被第二绝缘层320所隔离并分别贯穿两个区域，实现相绝缘的效果。
具体在本实施例中，第一绝缘层310、第二绝缘层320和第三绝缘层330均属于同一个绝缘层300整体，该绝缘层300整体分成三个部分，其中第一部分和第三部分分别位于第二部分的两端。第一部分，即第二绝缘层320进行弯折后连接在该绝缘层300整体的第二部分，即第一绝缘层310的中间位置上，进而使第一绝缘层310所围合出的空间被第二绝缘层320 分隔出两个区域；第三部分，即第三绝缘层330的一端作为自由端延伸进第一绝缘层310围合出的空间内；第二部分的两端连接重合，并使得第一部分与第二部分的连接处抵接第二部分与第三部分的连接处。
如图1和图3所示，在此实施例中，上述第三绝缘层330与第二绝缘层320的延伸方向不相同。
在一种可能的实施例中，上述第三绝缘层330的一端连接在第二自由端317上，另一端延伸进第一区域315。具体地，在缺口闭合的情况下，第一自由端316与第二自由端317重合，第三绝缘层330与第二自由端317的连接处抵紧第二绝缘层320与第一自由端316的连接处，第二自由端317所在的部分齿靴部绝缘层313由于第三绝缘层330与第二绝缘层320之间的抵紧，能够紧密的与第一自由端316所在的部分齿靴部绝缘层313紧密连接，第一自由端316也可以和第二自由端317牢固重合，不会轻易打开缺口。然而，如果第三绝缘层330与第二绝缘层320的延伸方向相同，则第二绝缘层320和第三绝缘层330相互平行，两者之间的相互作用力非常小，抵紧的效果差。为避免这种情况的出现，需要设置第三绝缘层330在第一区域315内的延伸方向，使第三绝缘层330的延伸方向与第二绝缘层320的延伸方向不相同，增强第二绝缘层320与第三绝缘层330抵紧处的相互作用力，使得第一自由端316与第二自由端317的重合处更紧密。
如图1、图2和图3所示，在此实施例中，上述第二绝缘层320的长度为L1，第三绝缘层330的长度为L2，L1和L2之间的关系满足：0mm＜L2＜0.5×L1。
在一种可能的实施例中，上述第二绝缘层320与第三绝缘层330均设置在第一绝缘层310所围合成的空间内且与第一绝缘层310相连，第二绝缘层320将此空间分隔成两个区域，第二绝缘层320的一端连接在轭部绝缘层311上设置的弯折线314上，第二绝缘层320的另一端连接在齿靴部绝缘层313的第一自由端316处，而第三绝缘层330一端与齿靴部绝缘层313的第二自由端317连接，另一端则伸入被第二绝缘层320隔离出的第一区域315里。由此可以得出，不考虑第三绝缘层330折叠和卷曲的特殊情况，第二绝缘层320要比第三绝缘层330长。
具体地，将第二绝缘层320的长度作为L1，第三绝缘层330的长度作为L2。L2的值不宜过大，否则会占据第一区域315内的空间，为定子绕组200的装配带来困难，也降低了定子槽120内的满槽率，影响电机420性能。具体地，本技术方案所提供的实施例中，对L2的长度要求为：0mm＜L2＜0.5×L1。当L2的长度属于上述长度范围内时，能够在第三绝缘层330充分的发挥其作用的情况下，使第三绝缘层330在第一区域315内占据最小的空间，减少对安装定子绕组200的影响，并尽可能的增加满槽率。
如图1和图3所示，在此实施例中，上述第三绝缘层330的长度为L2，定子槽120的槽口121宽度为W，W和L2之间的关系满足：L2≥0.5×W。
在一种可能的实施例中，将第三绝缘层330的长度设定为L2，将定子槽120的槽口121宽度设定为W。由于第一绝缘层310需要在一对相互靠近的齿靴夹紧下才能正常工作，所以，槽口121的宽度W不宜过大。而在第一绝缘层310由打开状态转化为闭合状态的过程中，一对相互靠近的齿靴不断接近，如果第三绝缘层330的长度L2比与槽口121的宽度W小，或者两者尺寸比较接近时，第三绝缘层330很容易从槽口121处滑出，第一区域315内不再保持仅在沿定子轴向的两端与外界连通，无法实现槽绝缘的效果。在本技术方案提出的实施例中，对槽口121的宽度W以及第三绝缘层330的长度L2进行限定，具体为：L2≥0.5×W。
本申请的实施例还提出了一种电机420，上述电机420包括如上述实施例中任一项定子和转子。上述转子设置在上述定子内。
电机420的主要组成部分为固定设置的定子，以及转动设置在转子。在定子通电后所产生电磁力的驱动下，转子开始转动并带动与转子连接的相关设备进行工作。如图4所示，相比与现有方案中的电机420，安装了上述实施例中任一项定子的电机420的电机效率更高。在一实施例中，某种现有电机420的电机效率为94.62％，而更换了上述实施例中的一种定子后，此实施例提供电机420的电机效率上升至94.81％。
本申请提出的电机420包括如上述任一实施例中的定子。因此，上述电机420具有上述定子的全部有益效果，在此不再一一论述。
如图5所示，本申请的实施例还提出了一种压缩机400，上述压缩机 400包括如上述实施例中所提出的电机420。
本申请提出的压缩机400包括如上述实施例中的电机420。因此，上述压缩机400具有上述电机420的全部有益效果，在此不再一一论述。
在一种可能的实施例中，上述压缩机400设置有上述实施例中的电机420，还包括壳体410、曲轴430、主轴承440、气缸450、活塞460、副轴承470和储液器480。
本申请的实施例还提出了一种制冷设备，上述制冷设备包括如上述实施例中所提出的电机420，或者，如上述实施例中所提出的压缩机400。
制冷设备是一种典型的需要使用电机420的电器设备。常规的制冷设备需要使用压缩机400，只有仅仅很少的特殊制冷设备，并没有设置压缩机400，而是直接由电机420带动其他种类的设备进行降温制冷。
本申请提出的制冷设备包括如上述实施例中的电机420，或者，如上述实施例中的压缩机400。因此，上述制冷设备具有上述电机420，或者，上述压缩机400的全部有益效果，在此不再一一论述。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
在本申请中，术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (12)

  1. 一种定子，其中，所述定子包括：
    定子铁芯，所述定子铁芯包括多个间隔设置的定子齿，相邻的两个所述定子齿之间形成定子槽；
    定子绕组，绕设于所述定子齿，所述定子绕组的至少一部分位于所述定子槽内；
    绝缘层，设于所述定子槽内，并位于所述定子绕组和所述定子齿之间，所述绝缘层将所述定子槽分隔为两个区域，绕设于不同定子齿的定子绕组位于所述绝缘层的两个区域内；
    其中，所述绝缘层包括：
    第一绝缘层，用于间隔所述定子绕组与所述定子齿；
    第二绝缘层，用于间隔绕设于不同定子齿的定子绕组，所述第二绝缘层的两端分别连接于所述第一绝缘层，以将所述第一绝缘层围合的空间分隔为所述两个区域。
  2. 根据权利要求1所述的定子，其中，所述第一绝缘层包括：
    相连接的轭部绝缘层、齿部绝缘层和齿靴部绝缘层，所述齿靴部绝缘层具有缺口，以使得所述第一绝缘层能够打开或者闭合；
    弯折线，沿所述定子的轴向延伸，所述弯折线设于所述轭部绝缘层，所述轭部绝缘层能够沿所述弯折线弯折。
  3. 根据权利要求2所述的定子，其中，所述定子铁芯包括：
    多个分块冲片，沿所述定子的周向，所述多个分块冲片能够拼接合成所述定子铁芯；
    在所述多个分块冲片处于未拼合的状态下，所述第一绝缘层位于所述定子槽内，并处于打开状态；在所述多个分块冲片完成绕线并处于拼合状态下，所述第一绝缘层沿所述弯折线弯折，所述齿靴部绝缘层的第一自由端能够与所述齿靴部绝缘层的第二自由端重合以使得第一绝缘层闭合成封闭结构。
  4. 根据权利要求3所述的定子，其中，
    所述弯折线凸出于所述轭部绝缘层的内表面设置。
  5. 根据权利要求3所述的定子，其中，所述绝缘层还包括：
    第三绝缘层，所述第三绝缘层的一端与所述第一绝缘层连接，所述第三绝缘层的另一端向所述两个区域中的第一区域的内部延伸。
  6. 根据权利要求5所述的定子，其中，所述第二绝缘层的一端与所述弯折线连接，所述第二绝缘层的另一端与所述齿靴部绝缘层的第一自由端连接；所述第三绝缘层与所述齿靴部绝缘层的第二自由端连接。
  7. 根据权利要求6所述的定子，其中，
    所述第三绝缘层与所述第二绝缘层的延伸方向不相同。
  8. 根据权利要求5所述的定子，其中，所述第二绝缘层的长度为L1，所述第三绝缘层的长度为L2，L1和L2之间的关系满足：0mm＜L2＜0.5×L1。
  9. 根据权利要求5所述的定子，其中，所述第三绝缘层的长度为L2，所述定子槽的槽口宽度为W，W和L2之间的关系满足：L2≥0.5×W。
  10. 一种电机，其中，包括：
    如权利要求1至9中任一项所述的定子；
    转子，设置在所述定子内。
  11. 一种压缩机，其中，包括：
    如权利要求10所述的电机。
  12. 一种制冷设备，其中，包括：
    如权利要求10所述的电机，或者，如权利要求11所述的压缩机。
PCT/CN2022/079405 2021-12-03 2022-03-04 定子、电机、压缩机和制冷设备 WO2023097919A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111468259.5A CN114157054A (zh) 2021-12-03 2021-12-03 定子、电机、压缩机和制冷设备
CN202111468259.5 2021-12-03

Publications (1)

Publication Number Publication Date
WO2023097919A1 true WO2023097919A1 (zh) 2023-06-08

Family

ID=80452538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/079405 WO2023097919A1 (zh) 2021-12-03 2022-03-04 定子、电机、压缩机和制冷设备

Country Status (2)

Country Link
CN (1) CN114157054A (zh)
WO (1) WO2023097919A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116780800B (zh) * 2023-06-16 2024-04-16 哈尔滨理工大学 一种具有低损耗特征的低温高速电机结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005117821A (ja) * 2003-10-09 2005-04-28 Mitsubishi Electric Corp 回転電機のステータ
CN204442126U (zh) * 2015-01-28 2015-07-01 安徽美芝制冷设备有限公司 定子组件和具有其的压缩机
CN106877542A (zh) * 2017-04-18 2017-06-20 安徽美芝制冷设备有限公司 定子及具有其的电机
CN210669650U (zh) * 2019-11-07 2020-06-02 南京埃斯顿自动化股份有限公司 齿轭分离式永磁电机定子铁芯及永磁电机
CN213937555U (zh) * 2020-12-28 2021-08-10 瑞智精密股份有限公司 定子铁芯及具有其的定子组件
CN113300500A (zh) * 2021-05-17 2021-08-24 安徽威灵汽车部件有限公司 定子、电机、压缩机和车辆
CN113300501A (zh) * 2021-05-17 2021-08-24 安徽威灵汽车部件有限公司 定子铁芯、电机、压缩机和车辆

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04210746A (ja) * 1990-12-07 1992-07-31 Daikin Ind Ltd モータの固定子
JP2001136700A (ja) * 1999-11-02 2001-05-18 Mitsubishi Electric Corp 固定子および固定子の製造方法
JP2005143172A (ja) * 2003-11-05 2005-06-02 Yaskawa Electric Corp Ａｃサーボモータの固定子
JP5396241B2 (ja) * 2009-11-10 2014-01-22 三菱電機株式会社 回転電機のステータおよびその製造方法
WO2016132420A1 (ja) * 2015-02-16 2016-08-25 三菱電機株式会社 回転電機のステータ、およびその製造方法
JP2017093096A (ja) * 2015-11-06 2017-05-25 アイチエレック株式会社 固定子および回転機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005117821A (ja) * 2003-10-09 2005-04-28 Mitsubishi Electric Corp 回転電機のステータ
CN204442126U (zh) * 2015-01-28 2015-07-01 安徽美芝制冷设备有限公司 定子组件和具有其的压缩机
CN106877542A (zh) * 2017-04-18 2017-06-20 安徽美芝制冷设备有限公司 定子及具有其的电机
CN210669650U (zh) * 2019-11-07 2020-06-02 南京埃斯顿自动化股份有限公司 齿轭分离式永磁电机定子铁芯及永磁电机
CN213937555U (zh) * 2020-12-28 2021-08-10 瑞智精密股份有限公司 定子铁芯及具有其的定子组件
CN113300500A (zh) * 2021-05-17 2021-08-24 安徽威灵汽车部件有限公司 定子、电机、压缩机和车辆
CN113300501A (zh) * 2021-05-17 2021-08-24 安徽威灵汽车部件有限公司 定子铁芯、电机、压缩机和车辆

Also Published As

Publication number Publication date
CN114157054A (zh) 2022-03-08

Similar Documents

Publication Publication Date Title
JP5938903B2 (ja) 電動機
US6943479B2 (en) Stator for an electrical rotating machine
US7821175B2 (en) Stator assembly for an electric machine and method of manufacturing the same
US9362809B2 (en) Stator for electric rotary machine and fabricating method of the same
EP3136564B1 (en) Axial air-gap rotary electric machine
CN103026591B (zh) 旋转电机的定子以及旋转电机
WO2023097919A1 (zh) 定子、电机、压缩机和制冷设备
CN102738917B (zh) 电动马达以及使用该电动马达的马达驱动压缩机
US20150084449A1 (en) Rotary electric machine
RU2145142C1 (ru) Электродвигатель погружного насоса
WO2011007881A1 (ja) 固定子、モータ及び圧縮機
EP2622717B1 (en) Motor for compressor and compressor having the same
US20230208243A1 (en) Motor and compressor
JP4193726B2 (ja) 同期誘導電動機の回転子及び圧縮機
EP3598612B1 (en) Stator and electric motor equipped with said stator
KR102613866B1 (ko) 스테이터 어셈블리, 모터, 압축기 및 냉방기기
US20230208240A1 (en) Motor and compressor
JP2015116086A (ja) 回転電機、および車載用電動圧縮機
US20230208242A1 (en) Motor
CN112134376A (zh) 定子、电机、压缩机、制冷设备及车辆
JP2019205244A (ja) 回転電機の固定子
CN219436721U (zh) 定子、电机、压缩机和制冷设备
CN220570370U (zh) 定子结构和电机
KR101776758B1 (ko) 구동모터의 고정자
CN110168864A (zh) 旋转电机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22899742

Country of ref document: EP

Kind code of ref document: A1