Block stator structure, stator and motor

Abstract

The utility model relates to the technical field of motors, and relates to a block stator structure, a stator and a motor, the block stator structure comprises an annular piece and a plurality of block stators, the plurality of block stators are arranged on the inner circumferential surface of the annular piece at intervals, and each block stator is movably connected with the annular piece; therefore, the annular pieces are additionally arranged on the peripheries of the block stators, all the block stators are embedded with the annular pieces respectively, the block stators do not make direct contact, the overall strength is directly provided by the annular pieces, mechanical strength weak positions do not exist, and when the block stators are thermally sleeved with the machine shell subsequently, the force of the machine shell for tightly holding the iron core acts on the annular pieces, so that the iron core is tightly held. As the annular piece is a whole and is uniformly stressed, the overall mechanical strength of the stator can be further improved, vibration and noise caused by the mechanical strength are avoided, the overall operation efficiency of the motor is improved, and the service life of the motor is prolonged; meanwhile, if the size of the notch needs to be changed, only the size of the inner block stator needs to be changed, so that the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

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

[0002] A motor refers to an electromagnetic device that converts or transmits electrical energy through the law of electromagnetic induction. It consists of a stator and a rotor. The main function of the stator is to generate a rotating magnetic field so that the rotor rotates in the rotating magnetic field.

[0003] In order to facilitate winding and improve the slot filling rate of the stator, the stator currently on the market usually adopts a block type stator; for example, a block stator core and a stator assembly disclosed in publication number CN214479929U, such as Figure 1 As shown, the stator core is divided into multiple units, which are wound separately. After the winding is completed, the individual stator core blocks are assembled together to form a complete stator core.

[0004] However, when the above scheme assembles the segmented stator cores into a whole circle, the mechanical strength of the joints between the segmented stators is relatively weak, and when the stator core is subsequently heat-inserted into the casing, the force of the casing holding the core also directly acts on the joints of the segmented stator cores, which is easy to cause vibration during the operation of the motor, which not only generates noise, but is also likely to affect the overall operating efficiency of the motor and the service life of the motor.

[0005] 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

[0006] In order to solve the above-mentioned difficulties in the background technology, the utility model proposes a segmented stator structure, which includes an annular member and a plurality of segmented stators.

[0007] The segmented stators are arranged at intervals on the inner circumference of the annular component, and the segmented stators are movably connected to the annular component.

[0008] The segmented stator comprises an outer segmented stator and an inner segmented stator. The outer segmented stator is provided with at least two key slots on one side facing the annular member. The inner circumferential surface of the annular member is provided with key portions corresponding to the key slots. The key portions and the key slots are interlocked. The other side of the outer segmented stator is movably connected to the inner segmented stator.

[0009] Furthermore, the number of the key slots and the number of the key parts are three respectively.

[0010] Furthermore, the segmented stator structure also includes connecting members, which are respectively connected to the outer segmented stator and the inner segmented stator.

[0011] Furthermore, the number of the connecting members is equal to the number of the segmented stators.

[0012] Furthermore, the connecting piece is a rivet.

[0013] Furthermore, the segmented stator structure also includes a plurality of insulating frames, which are respectively sleeved on each segmented stator. When the insulating frames are sleeved on the segmented stators, the insulating frames cover the outer circumferential surface of the segmented stators.

[0014] Furthermore, the insulating frame includes a first frame and a second frame, the first frame and the second frame are arranged separately from each other, and when the first frame and the second frame are sleeved on the outer block stator, the first frame is connected to the second frame.

[0015] The utility model also provides a stator, which adopts any one of the above-mentioned block stator structures.

[0016] Furthermore, the stator also includes a coil, and the coil is wound on an insulating frame.

[0017] The utility model also provides 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 adopts the stator with the block stator structure.

[0018] Based on the above, the block stator structure provided by the utility model, compared with the prior art, is achieved by adding annular parts on the periphery of the block stator, and each block stator is respectively engaged with the annular parts. The block stators are not in direct contact with each other, and the overall strength is directly provided by the annular parts. There are no weak points in mechanical strength, and when the block stators are subsequently hot-fitted into the casing, the force of the casing to hold the iron core acts on the annular parts. Since the annular parts are an integral whole and are evenly stressed, the overall mechanical strength of the stator can be further improved, vibration and noise caused by mechanical strength can be avoided, and the overall operating efficiency and service life of the motor can be improved.

[0019] 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

[0020] 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.

[0021] Figure 1 It is a structural schematic diagram of a block stator core in the prior art;

[0022] Figure 2 It is a structural schematic diagram of a block stator structure provided by an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a block stator provided in one embodiment of the utility model;

[0024] Figure 4 yes Figure 3 A local enlarged schematic diagram of the N position in the middle;

[0025] Figure 5 It is a structural schematic diagram of an insulating skeleton provided by an embodiment of the utility model;

[0026] Markings in the figure:

[0027] 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 2 and Figure 3 , Figure 2 It is a structural schematic diagram of a block stator structure provided by an embodiment of the utility model; Figure 3 It is a structural schematic diagram of a block stator provided in one embodiment of the utility model.

[0031] To achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a segmented stator structure. As shown in the figure, the segmented stator structure includes an annular member 100 and a plurality of segmented stators 200 .

[0032] The segmented stators 200 are arranged at intervals on the inner circumferential surface of the annular member 100 , and the segmented stators 200 are movably connected to the annular member 100 .

[0033] Please combine Figure 3 See also Figure 4 Specifically, the segmented stator 100 includes an outer segmented stator 210 and an inner segmented stator 220. The outer segmented stators 210 are arranged at intervals from each other and are movably arranged on the inner circumferential surface of the ring 100. The outer segmented stator 210 is provided with at least two key grooves 300 on one side of the ring 100, and a key portion 400 corresponding to the key grooves 300 is provided on the inner circumferential surface of the ring 100.

[0034] In a specific implementation, the key portion 400 can be engaged with the key slot 300, and the outer segment stator 210 is fixed on the inner circumferential surface of the ring member 100 through the engagement of the key portion 400 with the key slot 300. It can be understood that the key portion 400 and the key slot 300 are interference fit to ensure that the outer segment stator 210 can be stably fixed on the inner circumferential surface of the ring member 100.

[0035] It is understandable that, since there is a certain distance between two adjacent key portions 400 on the ring member 100, this distance will increase the width of the wire slot between two adjacent outer segmented stators 210 when the outer segmented stators 210 are assembled, thereby improving the overall performance of the motor.

[0036] On the basis of the above, the side of the outer segmented stator 210 away from the annular member 100 is movably connected to the inner segmented stator 220. Specifically, a connection slot is provided on the outer segmented stator 210, and a corresponding connection slot is provided on the inner segmented stator 220. The connector 500 is respectively connected to the two connection slots, so that the inner segmented stator 220 is fixed to the outer segmented stator 210. And the number of connectors 500 needs to match the number of segmented stators 200 to ensure that each pair of outer segmented stators 210 and inner segmented stators 220 can be firmly connected.

[0037] In specific implementation, when winding, the inner segmented stator 220 and the outer segmented stator 210 are not combined. After the winding is completed, the inner segmented stator 220 and the outer segmented stator 210 are connected by the connecting member 500.

[0038] On this basis, the width of the slots between the segmented stators 100 has a great influence on the operating efficiency of the motor. For the segmented stator structure provided by the utility model, if the slot width needs to be changed later, it is only necessary to change the size of the inner segmented stator 220 without replacing the entire stator, thereby reducing production costs and improving efficiency.

[0039] 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.

[0040] In some preferred embodiments, the number of key slots 300 and key portions 400 is three respectively, so as to further improve the stability and reliability of the connection between the outer segmented stator 210 and the annular member 100. It is understandable that the number of key slots 300 and key portions 400 can be set according to actual needs and can be flexibly selected.

[0041] Please combine Figure 2 See also Figure 5 On the basis of the above, the segmented stator structure further includes a plurality of insulating frames 600 , which are respectively sleeved on each segmented stator 100 . When the insulating frames 600 are sleeved on the segmented stators 100 , the insulating frames 600 cover the outer circumferential surface of the segmented stators 100 .

[0042] In a specific implementation, the insulating skeleton 600 includes a first skeleton 610 and a second skeleton 620. The first skeleton 610 and the second skeleton 620 are arranged as upper and lower parts. When the first skeleton 610 and the second skeleton 620 are mounted on the outer block stator 210, the bottom of the first skeleton 610 is connected to the top of the second skeleton 620 to form a complete insulating skeleton 600. At this time, the insulating skeleton 600 covers the four outer peripheral surfaces of the upper, lower, left and right sides of the block stator 100 to ensure that the block stator 100 will not contact the copper wire, thereby improving the insulation.

[0043] The utility model also provides a stator, which adopts any one of the above-mentioned block stator structures.

[0044] Furthermore, the stator also includes a coil, and the coil is wound on an insulating frame.

[0045] The utility model also provides 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 adopts the stator with the block stator structure.

[0046] To sum up, compared with the prior art, the segmented stator structure provided by the utility model adds annular parts on the periphery of the segmented stator, and each segmented stator is respectively engaged with the annular parts. The segmented stators are not in direct contact with each other, and the overall strength is directly provided by the annular parts. There is no weak point in mechanical strength, and when it is subsequently hot-fitted into the casing, the force of the casing to hold the iron core acts on the annular parts. Since the annular parts are an integral whole and are evenly stressed, the overall mechanical strength of the stator can be further improved, vibration and noise caused by mechanical strength can be avoided, and the overall operating efficiency and service life of the motor can be improved.

[0047] 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.

[0048] 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. A block stator structure, characterized in that: include: Ring parts; A plurality of segmented stators, wherein the segmented stators are arranged at intervals on the inner circumferential surface of the annular member, and each segmented stator is movably connected to the annular member; The segmented stator comprises an outer segmented stator and an inner segmented stator, the outer segmented stator is provided with at least two key slots on one side facing the annular member, the inner circumferential surface of the annular member is provided with key portions corresponding to the key slots, the key portions and the key slots are mutually engaged, and the other side of the outer segmented stator is movably connected to the inner segmented stator.

2. The segmented stator structure according to claim 1, characterized in that: The number of the key slots and the number of the key parts are three respectively.

3. The segmented stator structure according to claim 1, characterized in that: The segmented stator structure further includes connecting members, which are respectively connected to the outer segmented stator and the inner segmented stator.

4. The segmented stator structure according to claim 3 is characterized in that: The number of the connecting members is equal to the number of the segmented stators.

5. The segmented stator structure according to claim 4 is characterized in that: The connecting piece is a rivet.

6. The segmented stator structure according to claim 1, characterized in that: The segmented stator structure further includes a plurality of insulating frames, which are respectively sleeved on each of the segmented stators. When the insulating frames are sleeved on the segmented stators, the insulating frames cover the outer circumferential surface of the segmented stators.

7. The segmented stator structure according to claim 6, characterized in that: The insulating frame includes a first frame and a second frame, and the first frame and the second frame are arranged in upper and lower parts separately; when the first frame and the second frame are sleeved on the outer block stator, the first frame is connected to the second frame.

8. A stator, characterized in that: A block stator structure as described 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: The invention 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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