Stator structure easy to wind, stator and motor

Abstract

The utility model relates to the technical field of motors, and relates to an easy-to-wind stator structure, a stator and a motor, the easy-to-wind stator structure comprises a stator iron core and an insulation framework, and the insulation framework is sleeved on the stator iron core; the stator iron core is designed to be that the outer circle stator iron core and the inner circle stator iron core are movably connected, and the inner circle stator iron core is not assembled during winding, so that a needle nozzle can directly extend into a wire slot for winding without being limited by the size of the slot opening, the wire diameter of a wound copper wire can be flexibly selected, and the winding efficiency is improved. After winding is completed, the inner circle stator iron core is fixed through the connecting piece, the situation that the diameter of a copper wire is limited by the size of a notch, and consequently improvement of motor efficiency is limited is avoided, meanwhile, if the size of the notch needs to be changed, only the size of the inner circle stator iron core needs to be changed, the whole stator does not need to be replaced, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to an easy-to-wind stator structure, a stator and a motor. Background Art

[0002] The motor stator is an important component of motors such as generators and starters. The main function of the stator is to generate a rotating magnetic field so that the rotor rotates in the rotating magnetic field. The existing stators can be divided into: winding stators, three-piece stators and whole-piece stators according to the production process type.

[0003] The existing whole-piece stator is often wound through a needle nozzle, and the needle nozzle needs to extend from the slots of two adjacent stator teeth into the wire slot for winding. Therefore, there are specific requirements for the size of the slot, and the width of the needle nozzle is related to the wire diameter of the copper wire. After the slot size is determined, the maximum copper wire diameter that can be used is basically determined, which limits the improvement of motor efficiency.

[0004] It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to a person skilled in the art. Utility Model Content

[0005] In order to solve the above-mentioned difficulties in the background technology, the utility model proposes an easy-to-wind stator structure, which includes: a stator core and an insulating frame, wherein the insulating frame is sleeved on the outer cylindrical stator core.

[0006] The stator core comprises an outer stator core and a plurality of inner stator cores, the outer stator core has teeth arranged at intervals, and wire slots are formed between adjacent teeth, the plurality of inner stator cores are movably connected to the teeth and are located at one end away from the outer stator core, and adjacent inner stator cores are spaced apart from each other to form slots;

[0007] Furthermore, the easy-to-wind stator structure also includes a connecting piece, and the inner circle stator core is movably connected to the tooth portion through the connecting piece.

[0008] Furthermore, the connecting piece is a rivet.

[0009] Furthermore, the insulating frame includes a first frame and a second frame, the first frame and the second frame are separately arranged in upper and lower parts, and when the first frame and the second frame are sleeved on the outer cylindrical stator core, the first frame is connected to the second frame.

[0010] Furthermore, the insulating frame includes a plurality of third frames. When the third frames are sleeved on the outer cylindrical stator core, left and right ends of the plurality of third frames are interlocked with each other.

[0011] Furthermore, a plurality of winding posts are provided on the insulating frame, and the plurality of winding posts are arranged on the insulating frame at intervals.

[0012] Furthermore, the insulating frame is made of insulating material.

[0013] The second object of the utility model is to provide a stator, which adopts any one of the easy-winding stator structures described above;

[0014] Furthermore, the stator also includes a coil, and the coil is wound on the insulating frame.

[0015] Another object of the present invention is to provide a motor, comprising a stator and a rotor, wherein the rotor is located inside the stator and can rotate relative to the stator, and the stator is a stator with the above-mentioned easy-winding stator structure.

[0016] Based on the above, the stator structure that is easy to wind provided by the utility model, compared with the prior art, designs the stator core as an outer circle stator core and an inner circle stator core that are movably connected. When winding, the inner circle stator core does not need to be assembled, so that the needle mouth can be directly inserted into the wire groove for winding without being restricted by the size of the groove. The wire diameter of the wound copper wire can also be flexibly selected. After the winding is completed, the inner circle stator core is fixed by a connecting piece to avoid limiting the wire diameter of the copper wire due to the size of the groove, thereby limiting the improvement of the motor efficiency.

[0017] Other features and beneficial effects of the utility model will be described in the following description, and some of the features and beneficial effects can be understood by implementing the utility model. The purpose and other beneficial effects of the utility model can be achieved and obtained through the structures specifically pointed out in the description and other contents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The positional relationships described in the drawings in the following description are based on the directions of the components shown in the diagrams unless otherwise specified.

[0019] Figure 1 It is a structural schematic diagram of an easy-winding stator structure provided by an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a stator core provided by an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the insulating skeleton provided by the first embodiment of the utility model;

[0022] Figure 4 It is a schematic structural diagram of an insulating frame provided in the second embodiment of the utility model;

[0023] Markings in the figure:

[0024] 100- stator core 200- insulation frame 300- wire slot

[0025] 400-notch 500-connector 600-winding column

[0026] 700-coil 110-external stator core 120-inner stator core

[0027] 210-first skeleton 220-second skeleton 230-third skeleton 111-tooth portion DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; the technical features designed in different implementation modes of the utility model described below can be combined with each other as long as they do not conflict with each other; 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.

[0029] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof all mean "at least including".

[0030] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of an easy-winding stator structure provided by an embodiment of the utility model; Figure 2 1 is a schematic diagram of the structure of a stator core provided by an embodiment of the present invention. In order to achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides an easy-winding stator structure. As shown in the figure, the easy-winding stator structure includes a stator core 100 and an insulating frame 200.

[0031] The stator core 100 includes an outer circular stator core 110 and multiple inner circular stator cores 120. The outer circular stator core 110 has teeth 111 arranged at intervals from each other, and wire slots 300 are formed between adjacent teeth 111. The multiple inner circular stator cores 120 are respectively movably connected to the teeth 111 and are located at one end away from the outer circular stator core 110. The intervals between adjacent inner circular stator cores 120 form slots 400.

[0032] In a specific implementation, a plurality of teeth 111 arranged at intervals from each other are arranged on the inner circumferential surface of the outer cylindrical stator core 110 , and a wire slot 300 is formed between two adjacent teeth 11 for accommodating copper wires.

[0033] A connecting groove is provided at one end of the tooth portion 111 away from the outer stator core 110, and the connecting piece 500 is located in the connecting groove. A corresponding connecting groove is provided at one end of the inner stator core 120 facing the tooth portion 111, and the inner stator core 120 is movably connected to the tooth portion 111 through the connecting piece 500.

[0034] When the stator needs to be wound, the inner circular stator core 120 is separated from the tooth portion 111 and is not assembled. The winding needle nozzle can be directly inserted into the wire slot 300 for winding. After the winding is completed, the inner circular stator core 120 is connected to the tooth portion through the connector 500 to avoid the slot 400 limiting the width of the needle nozzle and thus limiting the wire diameter of the copper wire.

[0035] In some preferred embodiments, the connector 500 is a rivet, but the present invention is not limited thereto, and other connectors such as fixing pins may be used as the connector 500, without limitation. It is understandable that when the connection is made mechanically, in order to avoid the influence of the tolerance of mechanical parts, glue may be used for bonding and filling during the assembly process to improve the stability and reliability of the connection and enhance the overall strength of the stator structure.

[0036] On the basis of the above, the width of the slot 400 has a great influence on the motor efficiency. For the stator structure provided by the utility model, if the width of the slot 400 needs to be changed later, it is only necessary to change the size of the inner circle stator core 120 without replacing the entire stator, thereby reducing production costs and improving production efficiency.

[0037] The insulating frame 200 is sleeved on the outer cylindrical stator core 110 .

[0038] In some preferred embodiments, Figure 3 As shown, the insulating frame 200 includes a first frame 210 and a second frame 220, and the first frame 210 and the second frame 220 are arranged in upper and lower parts.

[0039] In a specific implementation, the insulating skeleton 200 may include a first skeleton 210 and a second skeleton 220. The first skeleton 210 and the second skeleton 220 are symmetrical to each other. When the first skeleton 210 and the second skeleton 220 are sleeved on the outer cylindrical stator core 110, the bottom of the first skeleton 210 is connected to the top of the second skeleton 220 to form a complete insulating skeleton 200. At this time, the insulating skeleton 200 completely covers the tooth portion 111.

[0040] In another preferred embodiment, Figure 4 As shown, the insulating frame 200 may further include a plurality of third frames 230. In specific implementation, when the plurality of third frames 230 are sleeved on the outer cylindrical stator core 110, the left and right ends of the plurality of third frames 230 are mutually embedded to form a complete insulating frame 200, and the insulating frame 200 completely covers the tooth portion 111.

[0041] On the basis of the above scheme, a plurality of winding posts 600 are provided on the insulating frame 200. In specific implementation, the winding posts 600 are arranged mutually at the upper and lower ends of the insulating frame 200. During the winding process, the adjacent coil connection wires are routed through the winding posts 600, thereby improving the uniformity and aesthetics of the stator structure as a whole.

[0042] In some preferred embodiments, the insulating frame 200 is made of insulating material to improve the insulating performance of the insulating frame 200 .

[0043] To achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a stator, which adopts the above-mentioned easy-winding stator structure. Preferably, the stator further includes a coil 700 , which is wound on the insulating frame 200 .

[0044] To achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a motor including a rotor and a stator. The rotor is located in the stator and can rotate relative to the stator. The stator adopts the above-mentioned stator structure with easy winding.

[0045] To sum up, the stator structure that is easy to wind provided by the utility model is compared with the prior art. By designing the stator core as an outer circle stator core and an inner circle stator core that are movably connected, the inner circle stator core does not need to be assembled during winding, so that the needle mouth can be directly inserted into the wire slot for winding without being restricted by the size of the slot. The wire diameter of the wound copper wire can also be flexibly selected. After the winding is completed, the inner circle stator core is fixed by a connecting piece to avoid limiting the wire diameter of the copper wire due to the size of the slot, thereby limiting the improvement of the motor efficiency.

[0046] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An easy-to-wind stator structure, characterized in that: include: A stator core, wherein the stator core comprises an outer stator core and a plurality of inner stator cores, the outer stator core having teeth arranged at intervals, and wire slots formed between adjacent teeth, the plurality of inner stator cores being movably connected to the teeth and located at one end away from the outer stator core, and the intervals between adjacent inner stator cores forming slots; An insulating frame is sleeved on the outer cylindrical stator core.

2. The easy-winding stator structure according to claim 1, characterized in that: The easy-to-wind stator structure also includes a connecting piece, and the inner circle stator core is movably connected to the tooth portion through the connecting piece.

3. The easy-winding stator structure according to claim 2, characterized in that: The connecting piece is a rivet.

4. The easy-winding stator structure according to claim 1, characterized in that: The insulating frame includes a first frame and a second frame, the first frame and the second frame are separately arranged in upper and lower parts, and when the first frame and the second frame are sleeved on the outer cylindrical stator core, the first frame is connected to the second frame.

5. The easy-winding stator structure according to claim 1, characterized in that: The insulating frame includes a plurality of third frames. When the third frames are sleeved on the outer cylindrical stator core, the left and right ends of the plurality of third frames are interlocked with each other.

6. The easy-winding stator structure according to claim 4 or 5, characterized in that: A plurality of winding posts are arranged on the insulating frame, and the plurality of winding posts are arranged on the insulating frame at intervals.

7. The easy-winding stator structure according to claim 6, characterized in that: The insulating frame is made of insulating material.

8. A stator, characterized in that: The easy-winding stator structure as claimed in any one of claims 1 to 7 is adopted.

9. The stator according to claim 8, characterized in that: The stator further comprises a coil, and the coil is wound on the insulating frame.

10. A motor, characterized in that: It comprises a stator and a rotor, wherein the rotor is located inside the stator and can rotate relative to the stator, and the stator is the stator as claimed in claim 9.

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