Motor stator framework for electric compressor
By combining the winding frame and the casing, the problem of complex winding of the motor stator frame is solved, achieving the effects of simplifying the process and improving insulation performance.
Patent Information
- Application Number
- CN202422942987.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-01
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-01
AI Technical Summary
The existing motor stator frame winding process is complex, requiring multiple bushings to be welded to a common end, resulting in low production efficiency and high cost.
The stator adopts a combination structure of winding frame and cover. The stator three-phase leads are wound in layers on the outer wall of the winding frame. The cover is fitted on the outer wall of the winding frame to limit the stator three-phase leads, reducing the number of common terminal wiring and sleeves. The leads are fixed by the cooperation of winding groove and wiring slot.
It simplifies the winding process, reduces manual operation steps, improves insulation protection performance, and reduces production costs.
Smart Images
Figure CN223502649U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor technology, and in particular relates to the stator frame of an electric compressor motor. Background Technology
[0002] The stator frame is a crucial component of a motor. It serves as the supporting structure for the stator and the foundation for fixing the stator coils. The quality and performance of the stator frame directly affect the motor's lifespan and efficiency.
[0003] In related technologies, the three-phase lines of the stator coil are mostly connected in parallel. The parallel branches have many parallel wires running inside the frame, and there is a common terminal parallel connection. This requires multiple (18) bushings, making the process complex, and the common terminal must be welded. During assembly, manual wire management is required, resulting in low production efficiency and high manufacturing costs.
[0004] Therefore, how to solve the problem of complex stator bobbin winding is a technical problem that urgently needs to be solved in this field.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0006] This disclosure provides at least one embodiment of a motor stator frame for an electric compressor and its operating method.
[0007] In a first aspect, embodiments of this disclosure provide a motor stator frame for an electric compressor, comprising:
[0008] Stator core;
[0009] The winding frame is located at the upper end of the stator core, and the three-phase stator leads are wound in layers on the outer wall of the winding frame.
[0010] The casing is fitted onto the outer wall of the winding frame;
[0011] Among them, the three-phase stator leads inside the stator core are wound in layers on the outer wall of the winding frame;
[0012] The cover is adapted to be fitted onto the outer wall of the winding frame to limit the three-phase stator leads.
[0013] In one optional embodiment, the outer wall of the winding frame is provided with a plurality of winding grooves in the circumferential direction, and each winding groove corresponds to a phase lead of the stator.
[0014] In one optional embodiment, the winding skeleton has a plurality of wire routing slots along the radial direction, and one wire routing slot corresponds to one winding slot.
[0015] In one optional embodiment, the cover includes: a limiting disc and a protective ring, the limiting disc and the protective ring being perpendicular to each other, the limiting disc being disposed above the winding frame, and the protective ring being sleeved on the outer wall of the winding frame.
[0016] In one optional embodiment, a plurality of limiting blocks are provided at equal intervals on the outer wall of the winding skeleton, and the limiting blocks are disposed below the winding groove.
[0017] The protective ring has several limiting grooves on its sidewall that are adapted to the limiting block, and the limiting block is adapted to be inserted into the limiting groove.
[0018] In one alternative implementation,
[0019] A placement ring is provided above the limiting plate, and a through hole is opened in the bottom wall of the placement ring to penetrate the limiting plate. The common terminal wire is suitable for being placed inside the placement ring.
[0020] In one alternative implementation, a winding bobbin is disposed at the upper end of the stator core;
[0021] The outer wall of the winding frame is provided with several winding slots in the circumferential direction, and a baffle is provided between two adjacent winding slots. Each winding slot corresponds to one phase lead of the stator.
[0022] The casing is fitted onto the outer wall of the winding frame;
[0023] Among them, the three-phase stator leads inside the stator core are connected in series and then wound in layers on the outer wall of the winding frame;
[0024] The cover is adapted to be fitted onto the outer wall of the winding frame to limit the three-phase stator leads.
[0025] In one optional embodiment, the winding skeleton has a plurality of wire routing slots along the radial direction, and one wire routing slot corresponds to one winding slot.
[0026] In this configuration, one phase lead of the stator passes through the wiring slot and is then wound into a corresponding winding slot.
[0027] In one optional embodiment, the cover includes: a limiting disc and a protective ring, the limiting disc and the protective ring being perpendicular to each other, the limiting disc being disposed above the winding frame, and the protective ring being sleeved on the outer wall of the winding frame.
[0028] In one optional embodiment, a plurality of limiting blocks are provided at equal intervals on the outer wall of the winding skeleton, and the limiting blocks are disposed below the winding groove.
[0029] The protective ring has several limiting grooves on its sidewall that are adapted to the limiting block, and the limiting block is adapted to be inserted into the limiting groove.
[0030] The beneficial effects of this utility model are as follows: The stator frame for an electric compressor motor, through the cooperation of the winding frame and the housing, allows the three-phase stator leads to be wound sequentially within the winding grooves. This reduces the number of common-terminal leads that need to be connected to each other or have fewer parallel connections, and also decreases the number of leads requiring sleeves, thus reducing manual operation steps. After the three-phase stator leads are fixed, the housing is fitted over the outer wall of the winding frame, improving the product's insulation and protection performance.
[0031] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.
[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0034] Figure 1 A perspective view of the stator frame for an electric compressor provided in an embodiment of this disclosure;
[0035] Figure 2 A perspective view of the housing provided in an embodiment of this disclosure;
[0036] Figure 3 A perspective view of the winding skeleton provided in an embodiment of this disclosure;
[0037] Figure 4 This is a schematic diagram showing the unfolded state of the cover and winding skeleton provided in an embodiment of this disclosure.
[0038] In the picture:
[0039] 1. Stator core;
[0040] 2. Winding frame; 21. Winding groove; 22. Cable routing slot; 23. Limiting block;
[0041] 3. Cover; 31. Limiting plate; 32. Protective ring; 33. Limiting groove; 34. Placement ring; 35. Heat dissipation hole; 36. Wiring hole. Detailed Implementation
[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0043] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0044] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0045] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0046] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0047] Research has revealed the following drawbacks of existing technologies: In related technologies, the three-phase lines of the stator coils are mostly connected in parallel, resulting in numerous parallel branch connections that run inside the frame and require a common terminal pull wire. This necessitates the use of multiple (18) bushings, complicating the process and requiring welding to the common terminal. Furthermore, the assembly process requires manual wire arrangement, leading to low production efficiency and high manufacturing costs.
[0048] Therefore, how to solve the problem of complex stator bobbin winding is a technical problem that urgently needs to be solved in this field.
[0049] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.
[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0051] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0052] like Figures 1 to 4As shown, some embodiments provide a stator frame for an electric compressor motor, including: a stator core 1; a winding frame 2, which is disposed at the upper end of the stator core 1, with the three-phase stator leads wound in layers on the outer wall of the winding frame 2; and a cover 3, which is fitted onto the outer wall of the winding frame 2; both the winding frame 2 and the cover 3 are made of insulating material; wherein, the three-phase stator leads in the stator core 1 are wound in layers on the outer wall of the winding frame 2; each phase lead is wound around the outside of the winding frame 2 to form a layer, and each lead of that phase lead is connected in series; adjacent phase leads do not contact each other. Compared with the traditional parallel connection of each phase lead, the winding frame 2 of this embodiment allows the bridge wire of each pole series branch to be placed along the outer winding groove 21 of the winding frame 2, without common terminal wiring, requiring fewer sleeves, and simplifying the process. The cover 3 is adapted to be fitted onto the outer wall of the winding frame 2 to limit the stator three-phase leads. Through the cooperation between the winding frame 2 and the cover 3, when the stator three-phase leads are fixed, the three-phase leads are sequentially wound into the winding groove 21. The number of common-terminal leads between each stator three-phase lead is reduced, and the number of leads requiring sleeves is also reduced, thus decreasing manual operation steps. After the stator three-phase leads are fixed, the cover 3, fitted onto the outer wall of the winding frame 2, improves the product's insulation protection performance.
[0053] Reference Appendix Figure 3 The winding frame 2 has several winding grooves 21 circumferentially formed on its outer wall. A baffle is provided between adjacent winding grooves 21 to isolate adjacent phase leads. One winding groove 21 corresponds to one phase lead of the stator, and the winding groove 21 is suitable for accommodating at least three cables of one phase lead. The winding frame 2 has several cable routing slots 22 radially formed, with one cable routing slot 22 corresponding to one winding groove 21. Every three cable routing slots 22 form a group. In this group, the groove depths of adjacent cable routing slots 22 are different. The leftmost cable routing slot 22 corresponds to the uppermost winding groove 21, the rightmost cable routing slot 22 corresponds to the lowermost winding groove, and the cable routing slot in the middle corresponds to the winding groove 21 in the middle.
[0054] After the lead wires inside the stator core 1 pass through the wiring slot 22, they are wound around the corresponding winding slot 21. Through the cooperation between the winding slot 21 and the wiring slot 22, there is no need to tie the end winding coils, reducing manual operation steps and minimizing insulation hazards caused by human factors.
[0055] Reference Appendix Figure 2The housing 3 includes a limiting disc 31 and a protective ring 32. The limiting disc 31 and the protective ring 32 are perpendicular to each other. The limiting disc 31 is positioned above the winding frame 2, and the protective ring 32 is fitted onto the outer wall of the winding frame 2. The limiting disc 31 has several heat dissipation holes 35 circumferentially arranged to facilitate heat dissipation from the stator core 1 coil. The outer wall of the winding frame 2 is provided with several limiting blocks 23 at equal intervals, which are positioned below the winding grooves 21. The outer wall of each limiting block 23 has an inclined surface to facilitate its insertion into the limiting grooves 33. The side wall of the protective ring 32 has several limiting grooves 33 that are adapted to the limiting blocks 23, allowing the limiting blocks 23 to be inserted into the limiting grooves 33. After the three-phase leads of the stator are sequentially wound in layers into the corresponding winding grooves 21, the protective ring 32 is fitted onto the outer wall of the winding frame 2, improving the insulation protection performance of the product.
[0056] To facilitate the connection of the leads to the terminal housing assembly outside the stator core 1, a placement ring 34 is provided above the limiting plate 31. A through hole is formed in the bottom wall of the placement ring 34, penetrating the limiting plate 31. The common terminal wire passes through the through hole and is placed inside the placement ring 34. A wiring hole 36 is formed near the placement ring 34 on the limiting plate 31, through which the three-phase leads are adapted to pass.
[0057] The stator three-phase leads wound in the winding groove 21 are adapted to pass through the placement ring 34 and be electrically connected to the terminal housing assembly.
[0058] Some embodiments provide a motor stator frame for an electric compressor, comprising:
[0059] The winding frame 2 is set at the upper end of the stator core 1;
[0060] The outer wall of the winding frame 2 is provided with a plurality of winding grooves 21, and a baffle is provided between two adjacent winding grooves 21. One winding groove 21 corresponds to one phase lead of the stator.
[0061] The cover 3 is fitted onto the outer wall of the winding frame 2;
[0062] Among them, the stator three-phase leads in the stator core 1 are connected in series and then wound in layers on the outer wall of the winding frame 2;
[0063] The cover 3 is adapted to be fitted onto the outer wall of the winding frame 2 to limit the stator three-phase leads.
[0064] Furthermore, the winding skeleton 2 has a plurality of wire routing slots 22 in the radial direction, and one wire routing slot 22 corresponds to one winding slot 21.
[0065] One phase lead of the stator passes through the wiring slot 22 and is then wound into a corresponding winding slot 21.
[0066] Furthermore, the cover 3 includes: a limiting plate 31 and a protective ring 32, the limiting plate 31 and the protective ring 32 being perpendicular to each other, the limiting plate 31 being disposed above the winding frame 2, and the protective ring 32 being sleeved on the outer wall of the winding frame 2.
[0067] Furthermore, a plurality of limiting blocks 23 are provided at equal intervals on the outer wall of the winding frame 2, and the limiting blocks 23 are located below the winding groove 21;
[0068] The protective ring 32 has several limiting grooves 33 on its side wall that are adapted to the limiting block 23, and the limiting block 23 is adapted to be inserted into the limiting groove 33.
[0069] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0070] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0071] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A stator frame for an electric compressor motor, characterized in that, include: Stator core (1); The winding frame (2) is set at the upper end of the stator core (1), and the three-phase stator leads are wound in layers on the outer wall of the winding frame (2); The cover (3) is fitted onto the outer wall of the winding frame (2); Among them, the stator three-phase leads inside the stator core (1) are wound in layers on the outer wall of the winding frame (2); The cover (3) is adapted to be fitted onto the outer wall of the winding frame (2) to limit the three-phase leads of the stator.
2. The stator frame for an electric compressor as described in claim 1, characterized in that, The outer wall of the winding frame (2) is provided with a plurality of winding grooves (21), each winding groove (21) corresponding to a phase lead of the stator.
3. The stator frame for an electric compressor as described in claim 2, characterized in that, The winding skeleton (2) has a plurality of wire routing slots (22) in the radial direction, and one wire routing slot (22) corresponds to one winding slot (21).
4. The stator frame for an electric compressor as described in claim 2, characterized in that, The cover (3) includes a limiting plate (31) and a protective ring (32). The limiting plate (31) and the protective ring (32) are perpendicular to each other. The limiting plate (31) is disposed above the winding frame (2), and the protective ring (32) is sleeved on the outer wall of the winding frame (2).
5. The stator frame for an electric compressor as described in claim 4, characterized in that, The outer wall of the winding skeleton (2) is provided with a plurality of limiting blocks (23) at equal intervals, and the limiting blocks (23) are located below the winding groove (21); The protective ring (32) has several limiting grooves (33) on its side wall that are adapted to the limiting block (23), and the limiting block (23) is suitable for insertion into the limiting groove (33).
6. The stator frame for an electric compressor as described in claim 4, characterized in that, A placement ring (34) is provided above the limiting plate (31). A through hole is opened in the bottom wall of the placement ring, which penetrates the limiting plate. The common terminal wire is suitable for being placed in the placement ring (34).
7. A stator frame for an electric compressor motor, characterized in that, include: The winding frame (2) is set at the upper end of the stator core (1); The outer wall of the winding frame (2) is provided with a plurality of winding grooves (21) in the circumferential direction. A baffle is provided between two adjacent winding grooves (21). One winding groove (21) corresponds to one phase lead of the stator. The cover (3) is fitted onto the outer wall of the winding frame (2); Among them, the stator three-phase leads in the stator core (1) are connected in series and then wound in layers on the outer wall of the winding frame (2); The cover (3) is adapted to be fitted onto the outer wall of the winding frame (2) to limit the three-phase leads of the stator.
8. The stator frame for an electric compressor as described in claim 7, characterized in that, The winding skeleton (2) has a plurality of wire routing slots (22) in the radial direction, and one wire routing slot (22) corresponds to one winding slot (21). One phase lead of the stator passes through the wiring slot (22) and is then wound into a corresponding winding slot (21).
9. The stator frame for an electric compressor as described in claim 8, characterized in that, The cover (3) includes a limiting plate (31) and a protective ring (32). The limiting plate (31) and the protective ring (32) are perpendicular to each other. The limiting plate (31) is disposed above the winding frame (2), and the protective ring (32) is sleeved on the outer wall of the winding frame (2).
10. The stator frame for an electric compressor as described in claim 9, characterized in that, The outer wall of the winding skeleton (2) is provided with a plurality of limiting blocks (23) at equal intervals, and the limiting blocks (23) are located below the winding groove (21); The protective ring (32) has several limiting grooves (33) on its side wall that are adapted to the limiting block (23), and the limiting block (23) is suitable for insertion into the limiting groove (33).