Insulation framework assembly, stator, motor, compressor and air conditioner

Abstract

The utility model provides an insulating framework assembly, a stator, a motor, a compressor and an air conditioner, the insulating framework assembly comprises a first insulating framework and a second insulating framework, the first insulating framework comprises a first base and a first insulating part which are integrally formed; the second insulating framework comprises a second base and a second insulating part which are integrally formed; the first base comprises a first abutting surface used for covering the end surface of the first end of the stator core, and the first insulating part is arranged on the first abutting surface; the second base comprises a second abutting surface used for covering the end surface of the second end of the stator core, and the second insulating part is arranged on the second abutting surface; and when the first abutting surface covers the end surface of the first end of the stator core and the second abutting surface covers the end surface of the second end of the stator core, the first insulating part and the second insulating part can be inserted into the wire slot of the stator core and cover the inner wall surface of the wire slot, so that the technical problem of low motor production efficiency in the prior art can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an insulating skeleton component, a stator, a motor, a compressor and an air conditioner. Background Art

[0002] In the production process of air-conditioning compressor motors, in order to protect the enameled wire and insulation, it is necessary to insert insulating slot paper into each stator winding slot before stator winding, and then assemble the skeleton at both ends of the iron core before winding can begin. This process is cumbersome and the production efficiency is low. In addition, the motor insulation performance of this solution is low and the motor leakage current is large.

[0003] How to simplify the production process of the motor and improve the production efficiency of the motor by optimizing the insulation skeleton is a technical problem that needs to be solved at present. Utility Model Content

[0004] Therefore, the utility model provides an insulating skeleton component, a stator, a motor, a compressor and an air conditioner, which can solve the technical problem of low motor production efficiency in the prior art.

[0005] In a first aspect, the utility model provides an insulating frame assembly for covering a stator core, comprising a first insulating frame and a second insulating frame, wherein the first insulating frame comprises an integrally formed first base and a first insulating portion; the second insulating frame comprises an integrally formed second base and a second insulating portion;

[0006] The first base includes a first abutting surface for covering an end surface of a first end of the stator core, and the first insulating portion is disposed on the first abutting surface; the second base includes a second abutting surface for covering an end surface of a second end of the stator core, and the second insulating portion is disposed on the second abutting surface;

[0007] When the first abutting surface covers the end surface of the first end of the stator core and the second abutting surface covers the end surface of the second end of the stator core, the first insulating portion and the second insulating portion can be inserted into the wire slot of the stator core and cover the inner wall surface of the wire slot.

[0008] In some embodiments, the inner wall surface of the wire slot includes a first inner wall and a second inner wall, and the first inner wall and the second inner wall are symmetrically arranged about the diameter of the stator core; the first insulating portion at least covers the first inner wall, and the second insulating portion at least covers the second inner wall.

[0009] In some embodiments, the stator core includes adjacent first and second yokes, first and second tooth portions, and first and second shoe portions; the first tooth portion is connected between the first yoke portion and the first shoe portion, and the second tooth portion is connected between the second yoke portion and the second shoe portion;

[0010] The first insulating part includes a first yoke plate corresponding to the first yoke part, and the second insulating part includes a second yoke plate corresponding to the second yoke part;

[0011] The first yoke portion and the second yoke portion can be snap-connected together.

[0012] In some embodiments, a first receiving groove is formed between one end of the first yoke plate facing the second tooth portion and the inner wall surface of the wire slot, and the first receiving groove penetrates the first yoke plate along the axial direction of the stator core;

[0013] A second accommodating groove is provided at one end of the second yoke plate facing the first tooth portion and facing away from the second yoke portion, and the second accommodating groove penetrates the second yoke plate along the axial direction of the stator core;

[0014] When the first insulating part and the second insulating part cover the inner wall surface of the wire slot, one end of the first yoke plate facing the second tooth portion is snapped into the second receiving groove, and one end of the second yoke plate facing the first tooth portion is snapped into the first receiving groove.

[0015] In some embodiments, the depth of the first accommodating groove along the circumferential direction of the stator core is H1, and the length of the first yoke plate along the circumferential direction of the stator core is H2.

[0016] The depth of the first accommodating groove along the circumferential direction of the stator core is H3, and the length of the first yoke plate along the circumferential direction of the stator core is H4.

[0017] In some embodiments, in the radial direction of the stator core, the thickness of the first yoke plate is D1, the depth of the first accommodating groove is D2,

[0018] In the radial direction of the stator core, the thickness of the first yoke plate is D3, the depth of the first receiving groove is D4,

[0019] In some embodiments, D4 - D3 < D2.

[0020] In some embodiments, 0.4 mm ≤ D1 = D3 ≤ 0.8 mm.

[0021] In the second aspect, the utility model also provides a stator, including the stator core and the insulating frame assembly; the stator core is provided with a wire slot, the first insulating frame is arranged at the first end of the stator core, the first base covers the end surface of the first end of the stator core, the second insulating frame is arranged at the second end of the stator core, and the second base covers the end surface of the second end of the stator core; the first insulating part and the second insulating part cover the wall surface of the wire slot.

[0022] In a third aspect, the utility model further provides a motor, comprising a rotor and the stator.

[0023] In a fourth aspect, the utility model provides a compressor, comprising the above-mentioned motor.

[0024] In a fifth aspect, the utility model provides an air conditioner, comprising the compressor.

[0025] The utility model forms the first insulating part and the first base into a first insulating frame, and the second insulating part and the second base into a second insulating frame, so that when the stator of the motor is assembled, it is only necessary to cover the two end faces of the stator core with the two bases, and the two insulating parts are inserted into the wire slots from the two ends of the stator core, and the two insulating parts cover the inner surface of the wire slot of the stator core in the wire slot; compared with the prior art, the process of separately setting the insulating paper is eliminated, the assembly production process of the stator is simplified, the production process of the motor is correspondingly simplified, and the production efficiency of the motor is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] Figure 1 This is a schematic diagram of an explosion of a stator of an embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of a second insulating frame of an embodiment of the utility model;

[0029] Figure 3 This is an axial schematic diagram of the stator core of an embodiment of the utility model;

[0030] Figure 4 It is an embodiment of the utility model Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5It is an axial schematic diagram of the stator core of the embodiment of the utility model when an insulating frame is provided and the first base is removed;

[0032] Figure 6 It is an embodiment of the utility model Figure 5 The enlarged view of point B in the figure;

[0033] Figure 7 It is an embodiment of the utility model Figure 6 Enlarged view of point C in the middle;

[0034] Figure 8 is an exploded diagram of the relationship between the first insulating part and the second insulating part of an embodiment of the utility model;

[0035] Fig. 9 This is a partial axial schematic diagram of a stator core of an embodiment of the utility model when a conductor is provided;

[0036] The accompanying drawings are marked as follows:

[0037] 1. First insulating skeleton; 101. First base; 102. First insulating part; 103. First abutting surface; 1021. First yoke plate; 1022. First tooth plate; 1023. First shoe plate; 1121. First accommodating groove; 2. Second insulating skeleton; 201. Second base; 202. Second insulating part; 203. Second abutting surface; 2021. Second yoke plate; 2022. Second tooth plate; 2023. Second shoe plate; 2121. Second accommodating groove; 3. Stator core; 4. Wire slot; 401. First inner side wall; 402. Second inner side wall; 501. First yoke part; 502. Second yoke part; 601. First tooth part; 602. Second tooth part; 701. First shoe part; 702. Second shoe part; 8. Wire passing part. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0042] In order to improve the production efficiency of motor stators and motors, the utility model discloses the following technical solutions.

[0043] See also Figure 1-9 As shown, an insulating skeleton assembly is used to cover a stator core 3, comprising a first insulating skeleton 1 and a second insulating skeleton 2, wherein the first insulating skeleton 1 comprises an integrally formed first base 101 and a first insulating portion 102; the second insulating skeleton 2 comprises an integrally formed second base 201 and a second insulating portion 202;

[0044] The first base 101 includes a first abutting surface 103 for covering an end surface of a first end of the stator core 3, and the first insulating portion 102 is disposed on the first abutting surface 103; the second base 201 includes a second abutting surface 203 for covering an end surface of a second end of the stator core 3, and the second insulating portion 202 is disposed on the second abutting surface 203;

[0045] When the first abutment surface 103 covers the end surface of the first end of the stator core 3 and the second abutment surface 203 covers the end surface of the second end of the stator core 3, the first insulating part 102 and the second insulating part 202 can be inserted into the wire slot 4 of the stator core 3 and cover the inner wall surface of the wire slot 4.

[0046] The first insulating skeleton 1 includes a first base 101 and a first insulating portion 102, and the second insulating skeleton 2 includes a second base 201 and a second insulating portion 202. Since the first insulating skeleton 1 is formed in one piece, the second insulating skeleton 2 is also formed in one piece. This allows the first insulating portion 102 to be installed in place while the first base 101 is installed on the stator core 3; and the second insulating portion 202 to be installed in place while the second base 201 is installed. Compared with the prior art in which insulating paper is additionally provided in the wire slot 4 after the base is installed, the present application simplifies the step of providing insulating components (insulating paper) in the wire slot 4 separately, thereby simplifying the assembly process of the stator core 3, improving production efficiency, and reducing production costs. One of the first base 101 and the second base 201 is provided with a wire passing portion 8 for routing and fixing external wires; such as Figure 2 As shown, a wire passing portion 8 is provided on the second base 201 .

[0047] Preferably, Figure 3-6 As shown, the inner wall surface of the wire slot 4 includes a first inner wall 401 and a second inner wall 402, and the first inner wall 401 and the second inner wall 402 are symmetrically arranged about the diameter of the stator core 3; the first insulating part 102 at least covers the first inner wall 401, and the second insulating part 202 at least covers the second inner wall 402.

[0048] The first insulating portion 102 at least covers the first inner wall 401, and the second insulating portion 202 at least covers the second inner wall 402. Furthermore, in the same wire slot 4, the insulating component covering the tooth portion is a complete component. Fig. 9 As shown, when the wire is wound around the teeth, the insulation performance between the wire and the teeth is better, reducing the possibility of stator leakage current.

[0049] Preferably, Figure 5-6As shown, the stator core 3 includes adjacent first yokes 501 and second yokes 502, first teeth 601 and second teeth 602, first boots 701 and second boots 702; the first teeth 601 is connected between the first yoke 501 and the first boots 701, and the second teeth 602 is connected between the second yoke 502 and the second boots 702;

[0050] The first insulating portion 102 includes a first yoke plate 1021 corresponding to the first yoke portion 501 , and the second insulating portion 202 includes a second yoke plate 2021 corresponding to the second yoke portion 502 ;

[0051] The first yoke 501 and the second yoke 502 can be snap-connected together.

[0052] The first yoke 501 and the second yoke 502 are clamped together, which improves the firmness of the connection between the first insulating frame 1 and the second insulating frame 2, and avoids the insulation frame from moving and causing the wire to be damaged and leaking. The first insulating part 102 also includes a first tooth plate 1022 corresponding to the first tooth part 601 and a first boot plate 1023 corresponding to the first boot part 701; the second insulating part 202 also includes a second tooth plate 2022 corresponding to the second tooth part 602 and a second boot plate 2023 corresponding to the second boot part 702.

[0053] Preferably, Figure 7-8 As shown, a first receiving groove 1121 is formed between one end of the first yoke plate 1021 facing the second tooth portion 602 and the inner wall surface of the wire slot 4, and the first receiving groove 1121 penetrates the first yoke plate 1021 along the axial direction of the stator core 3;

[0054] A second receiving groove 2121 is provided at one end of the second yoke plate 2021 facing the first tooth portion 601 and facing away from the second yoke portion 502 . The second receiving groove 2121 penetrates the second yoke plate 2021 along the axial direction of the stator core 3 .

[0055] When the first insulating part 102 and the second insulating part 202 cover the inner wall surface of the wire slot 4, one end of the first yoke plate 1021 facing the second tooth part 602 is snapped into the second receiving groove 2121, and one end of the second yoke plate 2021 facing the first tooth part 601 is snapped into the first receiving groove 1121.

[0056] One end of the first yoke plate 1021 facing the second tooth portion 602 is inserted into the second receiving groove 2121, and one end of the second yoke plate 2021 facing the first tooth portion 601 is inserted into the first receiving groove 1121; thus, a double insulating layer is formed at the connection between the first yoke plate 1021 and the second yoke plate 2021. Figure 7-8As shown, one layer is the first yoke plate 1021, and the other layer is the second yoke plate 2021; this further ensures the insulation performance of the insulation frame and avoids motor leakage.

[0057] The installation process of the first insulating skeleton 1 is as follows: insert the first insulating part 102 into the wire slot 4, and then push the first base 101 toward the second end of the stator core 3 so that the end surface of the first end of the stator core 3 is fitted. Then install the second insulating skeleton 2: the second yoke plate 2021 of the second insulating part 202 matches with the first yoke plate 1021, so that the end of the first yoke plate 1021 facing the second tooth portion 602 is inserted into the second receiving groove 2121, and the end of the second yoke plate 2021 facing the first tooth portion 601 is inserted into the first receiving groove 1121, and then push the second insulating skeleton 2 toward the first end of the stator core 3 so that the second base 201 is fitted with the end surface of the second end of the stator core 3; in this way, the installation of the first insulating skeleton 1 and the second insulating skeleton 2 is completed. It can be seen from the installation process that the first receiving groove 1121 passes through the first yoke plate 1021, and the second receiving groove 2121 passes through the second yoke plate 2021, which is conducive to the installation of the first insulating skeleton 1 and the second insulating skeleton 2.

[0058] Preferably, Figure 7-8 As shown, the depth of the first receiving groove 1121 along the circumferential direction of the stator core 3 is H1, and the length of the first yoke plate 1021 along the circumferential direction of the stator core 3 is H2.

[0059] The depth of the first receiving groove 1121 along the circumferential direction of the stator core 3 is H3, and the length of the first yoke plate 1021 along the circumferential direction of the stator core 3 is H4.

[0060] By making The clamping connection between the first insulating frame 1 and the second insulating frame 2 ensures insulation while preventing the first yoke plate 1021 and the second yoke plate 2021 from overlapping too much, which would cause excessive friction and difficulty in installation when moving relative to each other.

[0061] Preferably, Figure 7-8 As shown, in the radial direction of the stator core 3, the thickness of the first yoke plate 1021 is D1, and the depth of the first receiving groove 1121 is D2.

[0062] In the radial direction of the stator core 3, the thickness of the first yoke plate 1021 is D3, and the depth of the first receiving groove 1121 is D4.

[0063] By making The structural strength of the first yoke plate 1021 and the second yoke plate 2021 is effectively guaranteed, especially the thickness of the end of the first yoke plate 1021 facing the second tooth portion 602 and the thickness of the second yoke plate 2021 facing the first tooth portion 601 are guaranteed, so as to avoid the end being too thin and not firmly connected; it also avoids the phenomenon of relative movement deformation and assembly problems during the installation of the first insulating frame 1 and the second insulating frame 2, which is beneficial to improving production efficiency.

[0064] Preferably, Figure 7 As shown, D4-D3<D2.

[0065] By making D4 - D3 < D2, the second yoke plate 2021 can be better inserted into the first receiving groove 1121, thereby improving assembly efficiency.

[0066] Preferably, 0.4 mm ≤ D1 = D3 ≤ 0.8 mm.

[0067] Considering the insulation, the thicker the insulation is, the better. However, if the insulation is too thick, the effective slot area of ​​the wire slot 4 will be reduced. When the winding is fixed, the full slot rate is too high, which may easily lead to wire damage (fragile wire), which is not conducive to the production of the stator. By 0.4mm≤D1=D3≤0.8mm, on the one hand, the structural strength of the insulation is guaranteed to avoid leakage, and on the other hand, the effective slot area of ​​the wire slot 4 is guaranteed.

[0068] In the second aspect, the utility model provides a stator, including a stator core 3 and the insulating frame assembly; the stator core 3 is provided with a wire slot 4, the first insulating frame 1 is arranged at the first end of the stator core 3, the first base 101 covers the end surface of the first end of the stator core 3, the second insulating frame 2 is arranged at the second end of the stator core 3, and the second base 201 covers the end surface of the second end of the stator core 3; the first insulating part 102 and the second insulating part 202 cover the wall surface of the wire slot 4.

[0069] When installing the insulating frame on the stator core 3, in order to ensure smooth installation of the insulating frame, the gap D4 between the first insulating part 102 and the inner wall surface of the wire slot 4 can be between 0.05mm and 0.1mm, and similarly, the gap D5 between the second insulating part 202 and the inner wall surface of the wire slot 4 is also between 0.05m and 0.1mm. In this way, when the first insulating frame 1 and the second insulating frame 2 are inserted from both ends of the stator core 3, the first insulating part 102 and the second insulating part 202 can slide smoothly in the wire slot 4, which is conducive to improving the production efficiency of the stator.

[0070] In a third aspect, the utility model provides a motor, comprising a rotor and the stator.

[0071] In a fourth aspect, the utility model provides a compressor, comprising the above-mentioned motor.

[0072] In a fifth aspect, the utility model provides an air conditioner, comprising the compressor.

[0073] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0074] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the utility model, and these improvements and variations should also be regarded as the protection scope of the utility model.

Claims

1. An insulating skeleton assembly for covering a stator core (3), characterized in that: It comprises a first insulating frame (1) and a second insulating frame (2), wherein the first insulating frame (1) comprises an integrally formed first base (101) and a first insulating portion (102); and the second insulating frame (2) comprises an integrally formed second base (201) and a second insulating portion (202); The first base (101) comprises a first abutting surface (103) for covering the end surface of the first end of the stator core (3), and the first insulating portion (102) is arranged on the first abutting surface (103); the second base (201) comprises a second abutting surface (203) for covering the end surface of the second end of the stator core (3), and the second insulating portion (202) is arranged on the second abutting surface (203); When the first abutment surface (103) covers the end surface of the first end of the stator core (3) and the second abutment surface (203) covers the end surface of the second end of the stator core (3), the first insulating portion (102) and the second insulating portion (202) can be inserted into the wire slot (4) of the stator core (3) and cover the inner wall surface of the wire slot (4).

2. The insulating skeleton assembly according to claim 1, characterized in that: The inner wall surface of the wire slot (4) comprises a first inner wall (401) and a second inner wall (402), wherein the first inner wall (401) and the second inner wall (402) are symmetrically arranged with respect to the diameter of the stator core (3); the first insulating portion (102) at least covers the first inner wall (401), and the second insulating portion (202) at least covers the second inner wall (402).

3. The insulating skeleton assembly according to claim 2, characterized in that: The stator core (3) comprises a first yoke (501) and a second yoke (502), a first tooth (601) and a second tooth (602), and a first shoe (701) and a second shoe (702) adjacent to each other; the first tooth (601) is connected between the first yoke (501) and the first shoe (701), and the second tooth (602) is connected between the second yoke (502) and the second shoe (702); The first insulating part (102) includes a first yoke plate (1021) corresponding to the first yoke part (501), and the second insulating part (202) includes a second yoke plate (2021) corresponding to the second yoke part (502); The first yoke (501) and the second yoke (502) can be snap-connected together.

4. The insulating skeleton assembly according to claim 3, characterized in that: A first accommodating groove (1121) is formed between one end of the first yoke plate (1021) facing the second tooth portion (602) and the inner wall surface of the wire slot (4), and the first accommodating groove (1121) penetrates the first yoke plate (1021) along the axial direction of the stator core (3); A second accommodating groove (2121) is provided at one end of the second yoke plate (2021) facing the first tooth portion (601) and facing away from the second yoke portion (502), and the second accommodating groove (2121) penetrates the second yoke plate (2021) along the axial direction of the stator core (3); When the first insulating part (102) and the second insulating part (202) cover the inner wall surface of the wire slot (4), one end of the first yoke plate (1021) facing the second tooth part (602) is snapped into the second receiving groove (2121), and one end of the second yoke plate (2021) facing the first tooth part (601) is snapped into the first receiving groove (1121).

5. The insulating skeleton assembly according to claim 4, characterized in that: The depth of the first accommodating groove (1121) along the circumferential direction of the stator core (3) is H1, the length of the first yoke plate (1021) along the circumferential direction of the stator core (3) is H2, The depth of the first accommodating groove (1121) along the circumferential direction of the stator core (3) is H3, the length of the first yoke plate (1021) along the circumferential direction of the stator core (3) is H4, 6. The insulating skeleton assembly according to claim 4, characterized in that: In the radial direction of the stator core (3), the thickness of the first yoke plate (1021) is D1, the depth of the first receiving groove (1121) is D2, In the radial direction of the stator core (3), the thickness of the first yoke plate (1021) is D3, the depth of the first receiving groove (1121) is D4, 7. The insulating skeleton assembly according to claim 6, characterized in that: D4-D3<D2.

8. The insulating skeleton assembly according to claim 6, characterized in that: 0.4mm≤D1=D3≤0.8mm.

9. A stator, characterized in that: The invention comprises a stator core (3) and an insulating frame assembly as claimed in any one of claims 1 to 8; the stator core (3) is provided with a wire slot (4); the first insulating frame (1) is provided at the first end of the stator core (3); the first base (101) covers the end surface of the first end of the stator core (3); the second insulating frame (2) is provided at the second end of the stator core (3); the second base (201) covers the end surface of the second end of the stator core (3); the first insulating portion (102) and the second insulating portion (202) cover the wall surface of the wire slot (4).

10. A motor, characterized in that: It comprises a rotor and the stator as claimed in claim 9.

11. A compressor, characterized in that: The motor comprising the motor described in claim 10.

12. An air conditioner, characterized in that: Comprising the compressor as claimed in claim 11.

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