Stator, motor, compressor and refrigeration equipment

Abstract

The utility model discloses a stator, motor, compressor and refrigeration equipment, relates to the motor technical field, the stator comprises a plurality of stator units arranged along the circumferential direction of the stator, each stator unit comprises a plurality of stator punching sheets which are stacked in sequence along the axial direction of the stator, each stator unit is provided with an identification part, and the identification parts are arranged on the stator punching sheets. Any two identification parts on the plurality of stator units are arranged differently, winding is performed after the plurality of stator units of the integrally stamped stator are split, and the unique identification parts are arranged on each stator unit, so that when assembling or re-splicing is performed, the number of the identification parts is reduced, and the number of the stator units is reduced. Therefore, the stator units can be accurately reset to the initial position during overall stamping according to the identification parts, and the situation that after the reset sequence of the multiple stator units is disordered, precision loss after assembly is caused by manufacturing precision errors is avoided.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a stator, motor, compressor and refrigeration equipment. Background Technology

[0002] In the air conditioning industry, improving energy efficiency has always been a core objective, placing extremely high demands on compressors and their motors, which are key components. To achieve high efficiency, the industry has adopted various technological approaches. The manufacturing precision of the stator core directly impacts motor energy efficiency. When using a solid-circle stamping process to manufacture the stator core, because the core is a single structure, a very high level of precision can be achieved, resulting in a motor with relatively high energy efficiency. However, to further improve the motor slot fill factor (i.e., the proportion of stator slot space occupied by the windings), the industry tends to use a segmented core design.

[0003] Segmented iron cores can be produced in two ways: integral split stamping and individual segment stamping. When stamping each segment individually, multiple rows of segmented cores can be produced at once, and then reassembled into a circle. However, a drawback of this method is that dimensional differences may exist between segments in different rows, leading to reduced stator accuracy after assembly. On the other hand, integral split stamping allows the core to be stamped as a single unit, disassembled into multiple parts before winding for ease of operation, and then reassembled into a circle after winding. Nevertheless, due to potential dimensional differences between individual segmented cores, if they are not assembled according to the original stamping sequence or position during reassembly, stator accuracy will decrease, thus affecting motor efficiency. Utility Model Content

[0004] The main purpose of this invention is to propose a stator, motor, compressor, and refrigeration equipment, aiming to overcome the problem of precision loss caused by using segmented iron cores and then splicing them back into a circle.

[0005] To achieve the above objectives, the stator proposed in this utility model includes multiple stator units arranged along its circumference. Each stator unit includes multiple stator laminations stacked sequentially along the axial direction of the stator. Each stator unit is provided with an identification portion, and any two identification portions on the multiple stator units are differently configured.

[0006] In one embodiment, the identification section includes at least one identification character.

[0007] In one embodiment, the identifier character is set to one or more of text, letters, symbols, or numbers.

[0008] In one embodiment, the identification characters on the plurality of stator units are arranged in sequence along the circumference of the stator.

[0009] In one embodiment, one of the identifiers on each pair of adjacent stator units is set to a number and the other to a letter.

[0010] In one embodiment, each of the stator units has a first side and a second side disposed opposite to each other in the axial direction of the stator, and the marking portion includes a first marking character disposed on the first side of the stator unit and a second marking character disposed on the second side of the stator unit.

[0011] In one embodiment, the stator unit includes a yoke and teeth disposed inside the yoke, the teeth being wound with corresponding windings;

[0012] The marking part is disposed on the end face of the yoke.

[0013] In one embodiment, the marking portion is configured as one or more of a coated marking, a raised marking, and a recessed marking.

[0014] This utility model also provides a motor, the motor comprising:

[0015] Stator; and,

[0016] The rotor is located radially inside the stator;

[0017] The stator includes multiple stator units arranged circumferentially thereon. Each stator unit includes multiple stator laminations stacked sequentially along the axial direction of the stator. Each stator unit is provided with a marking portion, and any two marking portions on the multiple stator units are differently configured.

[0018] This utility model also provides a compressor, the compressor including a motor, the motor including:

[0019] Stator; and,

[0020] The rotor is located radially inside the stator;

[0021] The stator includes multiple stator units arranged circumferentially thereon. Each stator unit includes multiple stator laminations stacked sequentially along the axial direction of the stator. Each stator unit is provided with a marking portion, and any two marking portions on the multiple stator units are differently configured.

[0022] This utility model also provides a refrigeration device, the refrigeration device including a compressor, the compressor including a motor, the motor including:

[0023] Stator; and,

[0024] The rotor is located radially inside the stator;

[0025] The stator includes multiple stator units arranged circumferentially thereon. Each stator unit includes multiple stator laminations stacked sequentially along the axial direction of the stator. Each stator unit is provided with a marking portion, and any two marking portions on the multiple stator units are differently configured.

[0026] In one embodiment, the refrigeration equipment includes an air conditioner.

[0027] In the technical solution of this utility model, by setting an identification part on each of the stator units, and setting any two of the identification parts on the multiple stator units differently, after the multiple stator units of the stator after overall stamping are disassembled and wound, by setting a unique identification part on each stator unit, during assembly or reassembly, the stator unit can be accurately reset to the original position when it was initially stamped, based on the identification part, thus avoiding the loss of accuracy after assembly due to manufacturing precision errors after the reset order of the multiple stator units is disrupted. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of the first embodiment of the stator and rotor provided by this utility model;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the middle stator unit after it has been split;

[0031] Figure 3 for Figure 2 A schematic diagram of the assembled middle stator unit;

[0032] Figure 4 for Figure 1 A schematic diagram of the structure of a stator unit in one embodiment;

[0033] Figure 5 for Figure 1 A schematic diagram of another embodiment of the stator unit in the diagram;

[0034] Figure 6 A schematic diagram of the structure of the second embodiment of the stator provided by this utility model;

[0035] Figure 7 A schematic diagram of the structure of the third embodiment of the stator provided by this utility model;

[0036] Figure 8 A schematic diagram of the fourth embodiment of the stator provided by this utility model;

[0037] Figure 9 and Figure 10 A schematic diagram of the fifth embodiment of the stator provided by this utility model;

[0038] Figure 11 and Figure 12 A schematic diagram of the sixth embodiment of the stator provided by this utility model;

[0039] Figure 13 A schematic diagram of the seventh embodiment of the stator provided by this utility model.

[0040] Explanation of icon numbers:

[0041] 100. Stator; 10. Stator unit; 11. First side; 12. Second side; 101. Yoke; 102. Tooth; 2. Identifier;

[0042] 200. Rotor.

[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0045] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0046] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0047] The integral split stamping technology allows the iron core to be stamped as a whole, disassembled into multiple parts before winding for easier handling, and then reassembled into a circle after winding. Nevertheless, due to the possible dimensional differences between the individual iron core segments, if they are not assembled in the original stamping sequence or position during resetting, the stator accuracy will decrease, thus affecting the motor's energy efficiency.

[0048] This utility model proposes a stator 100, aiming to overcome the problem of precision loss caused by using segmented iron cores and then splicing them back into a circle.

[0049] Please see Figures 1 to 3 In one embodiment of the present invention, the stator 100 includes a plurality of stator units 10 arranged along its circumference. Each stator unit 10 includes a plurality of stator laminations stacked sequentially in the axial direction of the stator 100. Each stator unit 10 is provided with an identification portion 2, and any two identification portions 2 on the plurality of stator units 10 are differently configured.

[0050] It should be noted that "the stator 100 includes multiple stator units 10 arranged circumferentially" means that multiple stacked laminations are stamped in one go using an integral split stamping technique to create multiple interconnected stator units 10. Each pair of adjacent stator units 10 is pre-tightened in the circumferential direction by an interference fit. Simultaneously, each stator unit 10 is formed by stacking multiple stator laminations in sequence and riveting them together at rivet points to form a whole.

[0051] When winding is required, the multiple stator units 10 connected in a ring are disassembled. After each stator unit 10 is fixed by a fixing fixture, the enameled wire is wound on the tooth 102 of the corresponding stator unit 10, without being restricted by the other stator units 10, thereby increasing the slot fill factor. After the winding is completed, the multiple stator units 10 are reassembled together.

[0052] Because the winding process involves disassembling and reassembling the stator 100, there is a risk of sequence disruption on the production line. Therefore, marking sections 2 are provided on each stator unit 10 to facilitate subsequent assembly and maintenance. Each stator unit 10 has a unique marking, ensuring that the positions of the multiple stator units 10 can be correctly identified. Before disassembly, the marking sequence of the marking sections 2 is recorded. After disassembly, the stator units 10 can be reassembled according to the recorded marking sequence, reducing assembly errors caused by human error or other factors. This ensures that each stator unit 10 is installed in the correct order and orientation.

[0053] It is understood that the identification part 2 can be configured in different ways:

[0054] In one embodiment, please refer to Figure 4 and Figure 5 The identification section 2 can be configured with numbers or letters, and each stator unit 10 can be marked with a unique sequence of numbers or letters as its identification section 2. For example, the first stator unit 10 can be marked as "A01", the second as "A02", and so on.

[0055] In one embodiment, the marking section 2 may use different colors to distinguish each stator unit 10. For example, the stator units 10 may be marked sequentially with different colors such as red, orange, yellow, and green.

[0056] In another embodiment, the marking portion 2 can be different shapes or patterns. For example, the first stator unit 10 can be marked "circle", the second can be marked "triangle", the third can be marked "square", and so on.

[0057] In the technical solution of this utility model, by setting an identification part 2 on each of the stator units 10, and setting any two identification parts 2 on the plurality of stator units 10 differently, after the plurality of stator units 10 of the stator 100 after overall stamping are disassembled and wound, by setting a unique identification part 2 on each stator unit 10, when assembling or reassembling, the stator unit 10 can be accurately reset to the original position when it was initially stamped, based on the identification part 2, thus avoiding the loss of accuracy after assembly due to manufacturing precision errors after the reset order of the plurality of stator units 10 is disrupted.

[0058] In some embodiments, please refer to Figures 1 to 5 The identification part 2 includes at least one identification character.

[0059] The identification characters refer to specific symbols, numbers, letters or other identifiable marks used to distinguish different stator units 10.

[0060] Understandably, specific symbols, numbers, letters, or other identifiable marks can be used individually or in combination to form a unique identifier.

[0061] Specifically, in some embodiments, the identifier character is set to one or more of text, letters, symbols, or numbers.

[0062] The identifier character is set to a number, which can be arranged in a certain order or in a specific irregular order.

[0063] The identifier character is set to letters. The letters can be arranged in the order of abcd, or in a specific irregular order.

[0064] The identification characters are set as symbols. For example, asterisk (*), hash (#), plus sign (+), etc. Symbols can be used in combination with numbers or letters to enhance the uniqueness of the identification.

[0065] The identification characters can also be set as QR codes or barcodes. This not only allows for the carrying of more information but also supports rapid scanning and reading, making it suitable for applications on automated production lines.

[0066] In this embodiment, the identification characters on the plurality of stator units 10 are arranged in sequence along the circumference of the stator 100.

[0067] When the identifier character is set to a number. For example, see [link to relevant documentation]. Figure 3 In the first embodiment, the stator units 10 can be numbered sequentially as 1, 2, 3, 4...

[0068] Please see Figure 6 In the second embodiment, the stator units 10 can be numbered sequentially as 12, 11, 10, 9... This method facilitates sorting and searching, and is suitable for application scenarios that require sequential arrangement.

[0069] When the identifier character is set to a letter. For example, see [link to relevant documentation]. Figure 7 In the third embodiment, the stator units 10 can be sequentially numbered a, b, c, d...

[0070] The stator unit 10 can also be numbered sequentially as aa, ab, ac, ad... and other combinations.

[0071] Of course, in the circumferential direction of the stator 100, the markings of the plurality of stator units 10 can all be numerical values, all be letters, or be a combination of numbers and letters.

[0072] Please see Figure 8 In the fourth embodiment, one of the marking portions 2 on each pair of adjacent stator units 10 is set to a number and the other to a letter.

[0073] The stator unit 10 can be numbered sequentially as a, 1, b, 2, c, 3, d, 4... and so on, alternating between letters and numbers.

[0074] In some other embodiments, each of the stator units 10 has a first side 11 and a second side 12 disposed opposite each other in the axial direction of the stator 100, and the marking portion 2 includes a first marking character disposed on the first side 11 of the stator unit 10 and a second marking character disposed on the second side 12 of the stator unit 10.

[0075] Specifically, please refer to Figure 9 and Figure 10 In the fifth embodiment, the first side 11 of the stator unit 10 can be numbered sequentially as 1, 2, 3, 4... and the second side 12 of the stator unit 10 can be numbered sequentially as 12, 11, 10, 9...

[0076] Please see Figure 11 and Figure 12 In the sixth embodiment, the first side 11 of the stator unit 10 can be sequentially numbered a, b, c, d... and the second side 12 of the stator unit 10 can be sequentially numbered 12, 11, 10, 9...

[0077] For easier observation and subsequent maintenance, please refer to [link / reference]. Figures 1 to 10In some embodiments, the stator unit 10 includes a yoke 101 and a tooth 102 disposed inside the yoke 101, the tooth 102 being wound with corresponding windings; the marking part 2 is disposed on the end face of the yoke 101.

[0078] It is understood that the yoke 101 is part of the stator unit 10 and is disposed on the outer ring or circumferential portion of the stator 100. The teeth 102 are disposed on the inner side of the yoke 101, that is, on the side closer to the center of the motor. The teeth 102 are used to support the windings, and slots are formed between each tooth 102 for the windings to be wound.

[0079] The marking part 2 is disposed on the end face of the yoke 101. When it is necessary to identify and locate a specific stator unit 10, the operator can directly view its end face and quickly find the corresponding marking character without disassembling other parts.

[0080] Since the marking part 2 is located on the end face rather than the working surface (such as the tooth part 102 or the area where the winding is located), the marking part 2 will not interfere with the installation of the winding or other electrical and mechanical characteristics.

[0081] It should be noted that, since each stator unit 10 is fixed to a fixture during the winding of the enameled wire, the marking part 2 facilitates fixing each stator unit 10 to the corresponding fixture. After winding, the multiple stator units 10 can be assembled without changing their arrangement order. Therefore, please refer to... Figure 13 In the seventh embodiment, the marking part 2 may be disposed on the tooth part 102 of the stator unit 10.

[0082] Specifically, in this embodiment, the marking part 2 is configured as one or more of the following: a coated marking, a raised marking, and a recessed marking.

[0083] It should be noted that the coating-type marking refers to forming the marking characters by applying a layer of specific color or marking material to the surface of the stator unit 10. By setting the coating-type marking, different colors or patterns can be selected for marking as needed, facilitating visual identification. Specifically, marking can be applied quickly using methods such as spray painting or printing.

[0084] The raised markings are formed by creating protruding portions on the surface of the stator unit 10 to create identification characters. The raised markings can be integrally formed during the stamping process. By providing the raised markings, identification can be achieved not only visually but also tactilely, making them suitable for low-light environments. It is understood that, as part of the physical structure, the raised markings are more wear-resistant and less prone to damage compared to coated markings.

[0085] The recessed marking refers to the indentation formed by carving a recessed shape on the surface of the stator unit 10 to create identification characters. Because the recess is relatively resistant to external physical damage, it is suitable for harsh working environments. Furthermore, the recessed marking can be identified by directly observing the shape of the recess or by tactile perception.

[0086] It should be noted that the marking part 2 can use any of the above marking methods alone, or it can combine multiple methods to achieve the best effect. For example, in some cases, in order to improve the reliability and readability of the marking, the coated marking (providing color contrast) and the raised / recessed marking (increasing physical layering) can be used simultaneously.

[0087] This utility model also proposes an electric motor, which includes a rotor 200 and a stator 100. The rotor 200 is disposed on the radial inner side of the stator 100. The specific structure of the stator 100 is as described in the above embodiments. Since this electric motor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0088] This utility model also proposes a compressor, which includes a cylinder and a motor. The motor drives the rolling piston of the cylinder to move. The specific structure of the compressor is as described in the above embodiments. Since this compressor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0089] This utility model also proposes a refrigeration device, which includes a heat exchanger and a compressor. The specific structure of the refrigeration device is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0090] In one specific embodiment, the refrigeration equipment includes an air conditioner.

[0091] By setting the stator 100, the air conditioner enables the plurality of stator units 10 of the motor to maintain installation accuracy before and after assembly, ensuring minimum gaps between internal components of the motor, reducing unnecessary energy loss, reducing the impact on the overall energy efficiency ratio (EER) of the air conditioning system, and making the air conditioner operate more energy-efficiently.

[0092] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A stator, characterized in that, It includes multiple stator units arranged circumferentially, each stator unit comprising multiple stator laminations stacked sequentially along the axial direction of the stator, each stator unit having an identification portion, and any two identification portions on the multiple stator units being differently configured.

2. The stator as described in claim 1, characterized in that, The identification section includes at least one identification character.

3. The stator as described in claim 2, characterized in that, The identifier character is set to one or more of the following: text, letters, symbols, or numbers.

4. The stator as described in claim 3, characterized in that, Along the circumference of the stator, the identification characters on the plurality of stator units are arranged in sequence.

5. The stator as described in claim 3, characterized in that, On each pair of adjacent stator units, one of the identifiers is set to a number and the other to a letter.

6. The stator as described in claim 3, characterized in that, Each of the stator units has a first side and a second side disposed opposite to each other in the axial direction of the stator, and the marking portion includes a first marking character disposed on the first side of the stator unit and a second marking character disposed on the second side of the stator unit.

7. The stator as described in claim 1, characterized in that, The stator unit includes a yoke and a toothed portion disposed inside the yoke, the toothed portion being wound with corresponding windings; The marking part is disposed on the end face of the yoke.

8. The stator as described in claim 1, characterized in that, The marking part is configured as one or more of the following: coated marking, raised marking, and recessed marking.

9. An electric motor, characterized in that, include: The stator as described in any one of claims 1 to 8; as well as, The rotor is located radially inside the stator.

10. A compressor, characterized in that, Includes the motor as described in claim 9.

11. A refrigeration device, characterized in that, Includes the compressor as described in claim 10.

12. The refrigeration equipment as described in claim 11, characterized in that, The refrigeration equipment includes an air conditioner.

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