An interphase insulating paper, a motor and a compressor

Abstract

The present invention relates to the technical field of compressors, and discloses a phase insulation paper, a motor and a compressor. The phase insulation paper is in a U-shaped structure, including a bottom connection surface, a first side surface and a second side surface. Both the first side surface and the second side surface are connected to the bottom connection surface, and the first side surface and the second side surface are respectively located on opposite sides of the bottom connection surface. One side edge of the first side surface connected to the bottom connection surface is provided with a first folded edge, and a second folded edge is arranged at a position corresponding to the first folded edge on the second side surface. The first folded edge and the second folded edge are folded in opposite directions. The present invention has the following technical effects: 1. Adopting a single-layer structure, effectively saving materials; 2. Easy to insert, improving operation efficiency; 3. Not easy to fall off, effectively preventing loosening.

Description

Technical Field

[0001] The present invention belongs to the technical field of compressors, and particularly relates to an interphase insulating paper, a motor, and a compressor. Background Art

[0002] In current vertical rotary compressors, with the increase in the number of stator slots and the demand for improving motor efficiency, when the number of turns of the windings in the stator slots increases, the insulation distance between the windings of different phases in the slots is very small. During the automatic winding process, it cannot be fully guaranteed that the coils of different phases will not come into contact with each other, presenting a safety hazard. A safe solution is to use insulating paper to isolate the coils of different phases in the same slot to increase the insulation distance.

[0003] Currently, the commonly adopted method is to insert V-shaped folded insulating paper between phases to achieve insulation. For example, an interphase insulating paper disclosed in the prior art is used to be inserted between two adjacent wire packages. It has a main body portion with a first crease. The main body portion includes two first folded edges, and the two first folded edges are folded along the first crease to form a V shape; at least one of the first folded edges is provided with an abutting portion, and the abutting portion is used to elastically abut against an external structure in a direction away from the other first folded edge to position the interphase insulating paper.

[0004] As described above, for an interphase insulating paper disclosed in the prior art, an interphase insulating paper is inserted between two adjacent wire packages, that is, one interphase insulating paper needs to be inserted in one stator slot, so the number of interphase insulating papers required is large. And since the interphase insulating paper is a V-shaped structure, that is, a double-layer structure, inserting the double-layer structure into one stator slot requires strict control of the insertion position, and there are often cases of loosening and falling out during use, and the assembly yield is not high. Summary of the Invention

[0005] To solve the deficiencies of the above prior art, the present invention provides an interphase insulating paper, a motor, and a compressor. By designing the interphase insulating paper as a U-shaped structure, it realizes the effects of effectively saving materials, being easy to insert, improving operation efficiency, and not being prone to falling off and effectively preventing loosening.

[0006] The technical object to be achieved by the present invention is realized through the following technical solutions:

[0007] The present invention provides an interphase insulating paper. The interphase insulating paper is of a U-shaped structure and includes a bottom connecting surface, a first side surface, and a second side surface. The first side surface and the second side surface are both connected to the bottom connecting surface, and the first side surface and the second side surface are respectively located on opposite sides of the bottom connecting surface;

[0008] One side of the first side surface connected to the bottom connection surface is provided with a first hem, and a second hem is arranged at a position corresponding to the first hem on the second side surface. The first hem and the second hem are folded in opposite directions.

[0009] In some implementation manners, the lengths of a set of opposite side edges on the first hem are 0.5 - 1.5 mm, ensuring that the first hem can be inserted into the stator slot to prevent it from being unable to be hemmed due to too small a length or unable to be inserted into the stator slot due to too large a length.

[0010] In some implementation manners, the included angle between the first hem and the first side surface is 90 - 120°, ensuring the fitting degree between the first hem and the bottom of the stator slot and improving the stability and yield of assembly.

[0011] In some implementation manners, through holes for refrigerant circulation are formed on the bottom connection surface, increasing the refrigerant circulation area and facilitating the return of lubricating oil.

[0012] In some implementation manners, the number of the through holes is one or more, which can be adjusted according to actual application requirements and has the advantage of strong flexibility.

[0013] In some implementation manners, the thickness of the phase - to - phase insulating paper is 0.1 - 0.5 mm, ensuring a good insulating effect and being easy to insert and assemble at the same time.

[0014] The present invention also provides a motor, including a stator core, a first insulating bracket, a second insulating bracket, and the phase - to - phase insulating paper described in any one of the above items;

[0015] The first insulating bracket and the second insulating bracket are respectively connected to two end faces of the stator core;

[0016] The stator core is provided with a central hole axially penetrating therethrough and a plurality of stator slots circumferentially formed thereon. A first stator tooth is defined between two adjacent stator slots;

[0017] Through slots corresponding to the stator slots are arranged on both the first insulating bracket and the second insulating bracket, and second stator teeth corresponding to the first stator teeth are arranged on both the first insulating bracket and the second insulating bracket;

[0018] Windings are commonly wound around the first stator teeth and the second stator teeth;

[0019] The phase insulation paper is inserted along the first insulating bracket towards the stator core, so that the bottom connecting surface wraps the winding on the second stator tooth. The first side surface and the second side surface are respectively located in adjacent two stator slots, and the first folded edge and the second folded edge are both attached to the bottom of the corresponding stator slot, realizing the assembly operation of the phase insulation paper and further realizing the insulation function.

[0020] In some implementation manners, the first insulating bracket is connected to the lower end surface of the stator core, and the second insulating bracket is connected to the upper end surface of the stator core, so that the bottom connecting surface of the phase insulation paper is located below the lower end surface of the stator core. The refrigerant flows from bottom to top, and the phase insulation paper will not be loosened due to fluid movement, ensuring the stability of the assembly and the assembly yield.

[0021] In some implementation manners, the number of the phase insulation papers is half of the number of the stator slots, effectively reducing the number of the phase insulation papers used while ensuring the insulation effect.

[0022] The present invention also provides a compressor, including the motor described in any one of the above. The single-layer structure phase insulation paper is used for insulation, effectively saving materials, being easy to insert and improving the operation efficiency, and not being easy to fall off, effectively preventing loosening.

[0023] In summary, the present invention has at least the following advantages:

[0024] 1. The phase insulation paper provided by the present invention is designed in a U-shaped structure. When the phase insulation paper is inserted into the stator slot, the first side surface and the second side surface can be respectively located in adjacent two stator slots, reducing the number of the phase insulation papers used and playing a role in saving materials.

[0025] 2. The phase insulation paper provided by the present invention has the first side surface and the second side surface respectively located in adjacent two stator slots, and is inserted into the stator slot in a single-layer structure. Compared with the traditional V-shaped structure phase insulation paper, it has the effects of saving materials and being easy to insert.

[0026] 3. The phase insulation paper provided by the present invention is provided with a first folded edge on one side edge connected to the bottom connecting surface on the first side surface, and a second folded edge is arranged at a position corresponding to the first folded edge on the second side surface. During assembly, the first folded edge and the second folded edge are closely attached to the bottom of the stator slot, making the whole not easy to fall off, effectively preventing loosening, and having a high assembly yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 and Figure 2 is a schematic structural diagram of the phase insulation paper according to Embodiment 1 of the present invention;

[0028] Figure 3And Figure 4 It is another structural schematic diagram of the phase - to - phase insulating paper of Embodiment 1 of the present invention;

[0029] Figure 5 It is a top view of the phase - to - phase insulating paper of Embodiment 2 of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the motor of Embodiment 3 of the present invention;

[0031] Figure 7 It is an exploded view of the motor of Embodiment 3 of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the stator core, the first insulating bracket and the second insulating bracket of Embodiment 3 of the present invention;

[0033] 100, phase - to - phase insulating paper; 110, bottom connection surface; 120, first side surface; 130, second side surface; 140, first hem; 150, second hem; 160, through - hole;

[0034] 200, stator core; 210, central hole; 220, stator slot; 230, first stator tooth;

[0035] 300, first insulating bracket; 310, through - slot; 320, second stator tooth;

[0036] 400, second insulating bracket;

[0037] 500, winding. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] Please refer to Figures 1 - 4 , the phase - to - phase insulating paper 100 of the present invention, which are two structural schematic diagrams of the U - shaped phase - to - phase insulating paper 100.

[0042] In a vertical rotary compressor, due to the increase in the number of stator slots and the need to improve motor efficiency, the number of winding turns in the stator slots increases accordingly. Currently, the industry generally uses V-shaped insulating paper inserted between phases to achieve insulation protection. In contrast, the U-shaped interphase insulating paper 100 provided by the present invention can be inserted into each stator slot with a single-layer structure, effectively saving materials.

[0043] Specifically, the U-shaped interphase insulating paper 100 includes a bottom connecting surface 110, a first side surface 120 and a second side surface 130, the first side surface 120 and the second side surface 130 are both connected to the bottom connecting surface 110, and the first side surface 120 and the second side surface 130 are respectively located on opposite sides of the bottom connecting surface 110.

[0044] In combination with the structural distribution of a traditional stator core, it can be known that a stator core usually includes a plurality of stator slots and stator teeth, wherein stator teeth are defined between two adjacent stator slots, windings are wound on the stator teeth, and half of the same winding of the same stator tooth is located in two adjacent stator slots, respectively. There are half of two groups of windings in the same stator slot, and correspondingly, interphase insulating paper needs to be inserted between the two groups of windings in the same stator slot to avoid mutual contact between different windings.

[0045] When assembling the interphase insulating paper 100 of the U-shaped structure, the bottom connecting surface 110 is made to correspond to the winding position on the stator tooth, and the first side surface 120 and the second side surface 130 are inserted into two adjacent stator slots defining the stator tooth, so that the first side surface 120 and the second side surface 130 of the single-layer structure are respectively located in different stator slots, thereby playing an insulating protection role.

[0046] It should be noted that the first side surface 120 and the second side surface 130 may be parallel or non-parallel to each other, which is selected in combination with the shape of the stator teeth and the winding arrangement. Figure 3 As shown, the first side surface 120 and the second side surface 130 are parallel to each other. Figure 4 As shown, the first side surface 120 and the second side surface 130 are not parallel to each other.

[0047] Specifically, by inserting an interphase insulating paper 100 into every other stator tooth, each stator slot can be inserted with a first side surface 120 or a second side surface 130 of a single-layer structure.

[0048] It can be understood that, since the interphase insulating paper 100 in the present invention can correspond to two stator slots defining a stator tooth during assembly, the number of interphase insulating papers 100 required for overall assembly only needs to be half of the number of stator slots, which effectively saves materials.

[0049] At the same time, since the insulating paper inserted into two adjacent stator slots is a first side 120 or a second side 130 of a single-layer structure, compared with the traditional method of inserting a two-layer V-shaped interphase insulating paper 100 into the same stator slot, which is restricted by the strict control of the insertion position and causes a low yield rate, the present invention has the advantages of easy insertion and high assembly yield rate.

[0050] A first folded edge 140 is disposed on one side of the first side surface 120 connected to the bottom connecting surface 110 , and a second folded edge 150 is disposed on the second side surface 130 at a position corresponding to the first folded edge 140 . The first folded edge 140 and the second folded edge 150 are folded back to back.

[0051] For example, the first side surface 120 connected to the bottom connecting surface 110 includes a first side edge and a second side edge in a relative relationship, a first folded edge 140 is arranged on the first side edge or the second side edge, and correspondingly, a second folded edge 150 is arranged on the second side surface 130 in a relative position relationship with the first folded edge 140, and the first folded edge 140 and the second folded edge 150 are folded in opposite directions, that is, the first folded edge 140 is folded in a direction away from the second side surface 130, and the second folded edge 150 is folded in a direction away from the first side surface 120. In this way, it is convenient to insert the first side surface 120 and the second side surface 130 into two adjacent stator slots, and the first folded edge 140 and the second folded edge 150 can be inserted between the winding and the bottom of the stator slot by means of the bonding effect between the first folded edge 140 and the bottom of the corresponding stator slot and the bonding effect between the second folded edge 150 and the bottom of the corresponding stator slot, so as to fix the interphase insulating paper, and ensure that the interphase insulating paper will not move toward the center hole position of the stator core after insertion, thereby ensuring the assembly stability and assembly yield of the interphase insulating paper 100.

[0052] The interphase insulating paper 100 provided by the present invention is designed as a U-shaped structure. When the interphase insulating paper 100 is inserted into the stator slot, the first side surface 120 and the second side surface 130 can be respectively located in two adjacent stator slots, thereby reducing the number of interphase insulating papers 100 used and saving materials. The first side surface 120 and the second side surface 130 are respectively located in two adjacent stator slots, and both are single-layer structures inserted into the stator slots. Compared with the traditional interphase insulating paper 100 with a V-shaped structure, it saves materials and is easy to insert. A first folded edge 140 is provided on one side edge connected to the bottom connecting surface 110 on the first side surface 120, and a second folded edge 150 is provided on the second side surface 130 at a position corresponding to the first folded edge 140. During assembly, the first folded edge 140 and the second folded edge 150 are closely attached to the bottom of the stator slot, so that the whole is not easy to fall off, loosening is effectively prevented, and the assembly yield is high.

[0053] Embodiment 2:

[0054] The difference between this embodiment and Embodiment 1 is that in this embodiment, further structural optimization is performed on the phase-interphase insulating paper 100 of the present invention. Please refer to Figure 5 .

[0055] The length of a set of opposite side edges on the first folded edge 140 is 0.5 - 1.5 mm, ensuring that the first folded edge 140 can be inserted into the stator slot to prevent it from being unable to be folded due to too small a length or unable to be inserted into the stator slot due to too large a length.

[0056] It can be understood that the length of the side edge on the first folded edge 140 referred to here refers to the dimension folded based on the first side surface 120. The end of the connection between the first folded edge 140 and the first side surface 120 is inserted into the stator slot 220, and the length of the side edge on the first folded edge 140 determines the assembly yield rate of the phase-interphase insulating paper 100 to a certain extent.

[0057] If the length of the first folded edge 140 is too small, it will cause it to be unable to be folded and be prone to deformation after folding. If the length of the first folded edge 140 is too large, it may not be able to be inserted due to the too small space in the stator slot. Therefore, the length of a set of opposite side edges on the first folded edge 140 selected by the present invention is 0.5 - 1.5 mm.

[0058] In an application scenario, the length of a set of opposite side edges on the first folded edge 140 is 0.8 mm. This length can ensure that it is not prone to deformation after folding and is also convenient for insertion into the stator slot. Of course, this embodiment does not limit the length of a set of opposite side edges on the first folded edge 140, and it can be adjusted according to actual needs, such as adjusted to 1.0 mm or 1.2 mm, etc.

[0059] In some embodiments, let the included angle between the first folded edge 140 and the first side surface 120 be α, and the size of the included angle α is 90 - 120°, ensuring the degree of fit between the first folded edge 140 and the bottom of the stator slot and improving the assembly stability and assembly yield rate.

[0060] It can be known that when assembling the phase-interphase insulating paper 100, the end of the connection between the first folded edge 140 and the first side surface 120 is inserted into the stator slot. At this time, the size of the included angle α formed between the connection between the first folded edge 140 and the first side surface 120 determines the degree of fit between the first folded edge 140 and the bottom of the stator slot.

[0061] If the included angle α between the first folded edge 140 and the first side surface 120 is too small or too large, it will cause the first folded edge 140 and the bottom of the stator slot to only have contact but no fit relationship. Therefore, the size of the included angle α between the first folded edge 140 and the first side surface 120 selected by the present invention is 90 - 120°.

[0062] In an application scenario, the included angle α between the first folded edge 140 and the first side 120 is 100°. Considering the overall structure of the stator core, there is a certain arc at the bottom of the stator slot. Therefore, when the included angle α between the first folded edge 140 and the first side 120 is 100°, it can closely adhere to the bottom of the stator slot. Of course, in this embodiment, the size of the included angle α between the first folded edge 140 and the first side 120 is not limited and can be adjusted according to actual requirements, such as adjusted to 110° or 120°, etc.

[0063] In some embodiments, through holes 160 for refrigerant circulation are provided on the bottom connection surface 110. The through holes 160 can increase the circulation area of the refrigerant and facilitate the return of lubricating oil.

[0064] It is known that the vertical rotary compressor motor is vertically installed, and during its operation, the refrigerant flows from bottom to top. For the phase insulation paper 100 provided in the present invention, the bottom connection surface 110 thereof corresponds to the winding position on the stator teeth. Combining with the structure of the traditional vertical rotary compressor, it can be known that the bottom connection surface 110 on the assembled phase insulation paper 100 faces the refrigerant flow direction, that is, the through holes 160 are located on the refrigerant flow path. Therefore, setting the through holes 160 can increase the circulation area of the refrigerant and facilitate the return of lubricating oil.

[0065] The number of the through holes 160 can be one or more, which can be adjusted according to actual application requirements and has the advantage of strong flexibility.

[0066] For example, when the number of the through holes 160 is one, the through hole 160 can be centrally arranged on the bottom connection surface 110. When the number of the through holes 160 is multiple, the multiple through holes 160 can be spaced apart on the bottom connection surface 110, and it only needs to play the role of increasing the refrigerant circulation area.

[0067] In some embodiments, the thickness of the phase insulation paper 100 is 0.1 - 0.5 mm. The phase insulation paper 100 within this thickness range can ensure a good insulation effect and is also easy to insert and assemble.

[0068] Combined with the different numbers of winding turns in different vertical rotary compressors, phase insulation papers 100 with different thicknesses are used in cooperation. For example, when the number of winding turns is large, that is, the remaining space in the stator slot 220 is small. Therefore, the phase insulation paper 100 with a thickness of 0.1 mm can be used. If the remaining space in the stator slot 220 is large, the phase insulation paper 100 with a thickness of 0.5 mm can be used. Of course, according to actual requirements, the phase insulation paper 100 with a thickness of 0.2 mm, 0.25 mm or 0.3 mm can also be used.

[0069] The phase insulation paper 100 provided by the present invention can achieve better insertion and assembly, improve the assembly yield, and increase the refrigerant flow area by restricting the lengths of the opposite sides on the first folded edge 140, the angle between the first folded edge 140 and the first side surface 120, and providing through holes 160 for refrigerant flow on the bottom connection surface 110.

[0070] Embodiment 3:

[0071] Based on the above embodiment, this embodiment provides a motor. Please refer to Figures 6 - 8 。

[0072] A motor includes a stator core 200, a first insulating bracket 300, a second insulating bracket 400, and the phase insulation paper 100 in any of the above embodiments.

[0073] The first insulating bracket 300 and the second insulating bracket 400 are respectively connected to two end faces of the stator core 200. It can be known that the stator core 200 includes a first end face and a second end face. The first insulating bracket 300 can be connected to the first end face in alignment through a first positioning component, and the second insulating bracket can be connected to the second end face in alignment through a second positioning component. Here, the first positioning component may include a positioning buckle provided on the first insulating bracket 300 and a positioning groove provided on the first end face. Similarly, the structure of the second positioning component can be understood by referring to the first positioning component. Of course, the first positioning component and the second positioning component can also be components with alignment and assembly functions. In this embodiment, there is no limitation here.

[0074] The stator core 200 is provided with a central hole 210 penetrating axially therethrough and a plurality of stator slots 220 opened in the circumferential direction thereof. A first stator tooth 230 is defined between two adjacent stator slots 220. Among them, the central hole 210 is used for the positioning of the shaft passing through, and the first stator tooth 230 is used for arranging the winding 500.

[0075] Both the first insulating bracket 300 and the second insulating bracket 400 are provided with through slots 310 corresponding to the stator slots 220, and both the first insulating bracket 300 and the second insulating bracket 400 are provided with second stator teeth 320 corresponding to the first stator teeth 230; A winding 500 is wound around the first stator teeth 230 and the second stator teeth 320 together.

[0076] It can be understood that the structures of the first insulating bracket 300 and the second insulating bracket 400 related to the winding 500 are designed to be the same as those of the stator core 200, so as to facilitate the normal function of the winding 500. The stator core 200 is located between the first insulating bracket 300 and the second insulating bracket 400. That is, the first stator tooth 230 is located between two second stator teeth 320. During winding, it is wound around the second stator tooth 320 through the first stator tooth 230.

[0077] The phase insulation paper 100 is inserted along the direction of the first insulating bracket 300 towards the stator core 200, so that the bottom connection surface 110 wraps the winding 500 on the second stator tooth 320. The first side surface 120 and the second side surface 130 are respectively located in adjacent two stator slots 220, and both the first folded edge 140 and the second folded edge 150 are attached to the bottom of the corresponding stator slot 220, realizing the assembly operation of the phase insulation paper 100, and further realizing the insulation function.

[0078] Combined with the shape of the winding 500 on the second stator tooth 320 and the shape of the bottom of the stator slot 220, the connection between the bottom connection surface 110 of the phase insulation paper 100 and the first side surface 120 and the second side surface 130 is designed to be arc-shaped, so that the phase insulation paper 100 can achieve a better fitting and assembly effect.

[0079] The motor provided by the present invention uses the U-shaped phase insulation paper 100 for assembly insulation, achieving the effects of effectively saving materials, being easy to insert, improving operation efficiency, not being easy to fall off, and effectively preventing loosening.

[0080] In some embodiments, the first insulating bracket 300 is connected to the lower end surface of the stator core 200, and the second insulating bracket 400 is connected to the upper end surface of the stator core 200, so that the bottom connection surface 110 of the phase insulation paper 100 is located below the lower end surface of the stator core 200. The refrigerant flows from bottom to top, and the phase insulation paper 100 will not be loosened due to fluid movement, ensuring the stability of the assembly and the assembly yield.

[0081] It can be known that the vertical rotary compressor motor is vertically installed, and during its operation, the refrigerant flows from bottom to top. For the phase insulation paper 100 provided in the present invention, the bottom connection surface 110 corresponds to the position of the winding 500 of the second stator tooth 320 on the first insulating bracket 300. Combining with the structure of the traditional vertical rotary compressor, it can be known that the bottom connection surface 110 on the assembled phase insulation paper 100 faces the flow direction of the refrigerant. That is, the through hole 160 is located on the flow path of the refrigerant. Therefore, the through hole 160 plays a role in increasing the flow area of the refrigerant and is beneficial to the return of lubricating oil.

[0082] In addition, since the refrigerant flows from bottom to top, the bottom connection surface 110 is corresponding to the winding 500 position of the second stator tooth 320 on the first insulating bracket 300. When the refrigerant flows, it passes through the bottom connection surface 110 to the first insulating bracket 300. With the insertion effect of the first side surface 120 and the second side surface 130, the bottom connection surface 110 will not become loose due to fluid movement, having the advantages of high assembly stability, not being easily detached or loosened.

[0083] In some embodiments, the number of the phase insulation papers 100 is half of the number of the stator slots 220, effectively reducing the usage amount of the phase insulation papers 100 while ensuring the insulation effect.

[0084] As can be known from the foregoing, a first stator tooth 230 is defined between two adjacent stator slots 220. By inserting a phase insulation paper 100 every other first stator tooth 230, a single-layer structure of the first side surface 120 or the second side surface 130 can be inserted into each stator slot 220.

[0085] It can be understood that the present invention adopts a U-shaped phase insulation paper 100. One phase insulation paper 100 can correspondingly define two stator slots 220 of a first stator tooth 230, such that in terms of the overall assembly quantity requirement, the required number of phase insulation papers 100 is only half of the number of stator slots 220, playing an effective role in saving materials.

[0086] Embodiment 4:

[0087] On the basis of the above embodiments, this embodiment provides a compressor.

[0088] A compressor includes the motor in any of the above embodiments. The motor uses a single-layer structure of the phase insulation paper 100 for insulation, effectively saving materials, being easy to insert and improving operation efficiency, and not being easily detached, effectively preventing loosening.

[0089] The compressor provided by the present invention uses a U-shaped phase insulation paper. When inserting the phase insulation paper into the stator slot, the first side surface and the second side surface can be respectively located in two adjacent stator slots, reducing the usage amount of the phase insulation paper and playing a role in saving materials; the first side surface and the second side surface are respectively located in two adjacent stator slots and are inserted into the stator slot in a single-layer structure. Compared with the traditional V-shaped phase insulation paper, it has the effects of saving materials and being easy to insert; on one side edge of the first side surface connected to the bottom connection surface, a first folding edge is provided, and at a position corresponding to the first folding edge on the second side surface, a second folding edge is provided. During assembly, by the first folding edge and the second folding edge closely adhering to the bottom of the stator slot, the whole is not easily detached, effectively preventing loosening, and having a high assembly yield rate.

[0090] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0092] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0093] In the present invention, unless otherwise clearly specified or limited, the first feature being above or below the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, under, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0094] Although the description of the present invention is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and variations based on the above content. Therefore, all such substitutions, improvements, and variations are included within the spirit and scope of the appended claims.

Claims

1. A motor, characterized in that, Comprising interphase insulating paper, the interphase insulating paper (100) is a U-shaped structure, comprising a bottom connecting surface (110), a first side surface (120) and a second side surface (130), the first side surface (120) and the second side surface (130) are both connected to the bottom connecting surface (110), and the first side surface (120) and the second side surface (130) are respectively located on two opposite sides of the bottom connecting surface (110); A first folded edge (140) is provided on one side of the first side surface (120) connected to the bottom connecting surface (110), and a second folded edge (150) is provided on the second side surface (130) at a position corresponding to the first folded edge (140), wherein the first folded edge (140) and the second folded edge (150) are folded back to back; The bottom connection surface (110) is provided with a through hole (160) for circulating the refrigerant; The motor further comprises a stator core (200), a first insulating bracket (300) and a second insulating bracket (400); The first insulating support (300) and the second insulating support (400) are respectively connected to two end surfaces of the stator core (200); The stator core (200) is provided with a central hole (210) penetrating along its axial direction and a plurality of stator slots (220) opened along its circumferential direction, and a first stator tooth (230) is defined between two adjacent stator slots (220); The first insulating support (300) and the second insulating support (400) are both provided with through slots (310) corresponding to the stator slots (220), and the first insulating support (300) and the second insulating support (400) are both provided with second stator teeth (320) corresponding to the first stator teeth (230); The first stator tooth (230) and the second stator tooth (320) are both wound with a winding (500); The interphase insulating paper (100) is inserted between two groups of windings (500) in the same stator slot (220), and is closely attached to the bottom of the stator slot (220) through the first folded edge (140) and the second folded edge (150), so that the whole is not easy to fall off; The interphase insulating paper (100) is inserted along the first insulating bracket (300) in a direction toward the stator core (200), so that the bottom connecting surface (110) covers the winding (500) on the second stator tooth (320), the first side surface (120) and the second side surface (130) are respectively located in two adjacent stator slots (220), and the first folded edge (140) and the second folded edge (150) are both in contact with the bottom of the corresponding stator slot (220).

2. The motor according to claim 1, characterized in that, A set of opposite side edges on the first folded edge (140) has a length of 0.5-1.5 mm.

3. The motor according to claim 1, characterized in that, The included angle between the first folded edge (140) and the first side surface (120) is 90-120°.

4. The motor according to claim 1, characterized in that, The number of the through holes (160) is one or more.

5. The motor according to claim 1, characterized in that, The interphase insulation paper (100) has a thickness of 0.1-0.5 mm.

6. The motor according to claim 1, wherein The first insulating bracket (300) is connected to the lower end face of the stator core (200), and the second insulating bracket (400) is connected to the upper end face of the stator core (200).

7. The motor according to claim 1, characterized in that, The number of the phase insulating papers (100) is half of the number of the stator slots (220).

8. A compressor, characterized in that, A motor according to any one of claims 1-7 is included.

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