Insulation framework, stator block and motor

Abstract

The utility model discloses an insulating framework, a stator block and a motor, and the insulating framework comprises a first framework body, a second framework body, and a first telescoping connecting piece. A first telescopic connecting piece is arranged between the first framework body and the second framework body, the two ends of the first telescopic connecting piece are connected with the first framework body and the second framework body respectively, and the first telescopic connecting piece, the first framework body and the second framework body define an inserting groove. The slots are used for the insertion of the tooth parts of the iron core blocks, and the first telescopic connecting piece is extended or shrunk by adapting to the width of the tooth parts of the iron core blocks. Through the arrangement of the first telescopic connecting piece, the first telescopic connecting piece can be extended or shrunk when the first framework body and the second framework body are subjected to acting force of getting close to each other or getting away from each other, so that the width of the slot is changed to adapt to iron core blocks of different sizes and types; and only one insulation framework is needed to adapt to various stator iron core blocks, so that the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to an insulation framework, a stator block and an electric machine. BACKGROUND

[0002] An electric machine generally comprises a stator and a rotor, the stator mainly generates a rotating magnetic field, and the rotor is mainly cut by the magnetic lines of force in the rotating magnetic field and converts electromagnetic energy into mechanical energy, so as to drive the mechanical equipment to operate.

[0003] The stator, as an important component of the electric machine, is composed of an iron core, an insulation framework and a winding, the insulation framework is respectively inserted at both ends of the tooth part of the iron core, and the winding is wound on the insulation framework, the insulation framework plays a role of insulation and support for the winding and the iron core.

[0004] The width of the insulation framework is generally required to adapt to the width of the tooth part of the iron core, so as to maximize the winding space. However, the current insulation framework can only adapt to a stator iron core of one size, and when the size of the stator iron core changes, a new mold needs to be opened, thereby increasing the production cost of the product. CONTENT OF THE INVENTION

[0005] The present application aims to provide an insulation framework, a stator block and an electric machine, so as to adapt to different sizes of iron cores by the same insulation framework and reduce the manufacturing cost.

[0006] According to a first aspect of the present application, the present application provides an insulation framework, comprising a first framework body, a second framework body and a first telescopic connecting piece, the first telescopic connecting piece is arranged between the first framework body and the second framework body and the two ends of the first telescopic connecting piece are respectively connected with the first framework body and the second framework body, the first telescopic connecting piece and the first framework body and the second framework body enclose a slot, the slot is used for the tooth part of the iron core block to be inserted, and the first telescopic connecting piece is adapted to the width of the tooth part of the iron core block to be elongated or reduced.

[0007] In an embodiment, the first skeleton body is provided with a first inner baffle and a first outer baffle extending away from the slot, the first inner baffle is arranged on the side of the first skeleton body close to the rotor, and the first outer baffle is arranged on the side of the first skeleton body away from the rotor; the second skeleton body is provided with a second inner baffle and a second outer baffle, the second inner baffle is arranged on the side of the second skeleton body close to the rotor, and the second outer baffle is arranged on the side of the second skeleton body away from the rotor; a winding slot is formed between the first inner baffle and the first outer baffle, and / or between the second inner baffle and the second outer baffle, the first inner baffle and the second inner baffle have a first interval, the first outer baffle and the second outer baffle have a second interval, the first interval corresponds to the position of the side of the first telescopic connector close to the rotor, and the second interval corresponds to the position of the side of the first telescopic connector away from the rotor.

[0008] In an embodiment,

[0009] The insulation skeleton is also provided with a second telescopic connector and a third telescopic connector, the second telescopic connector is arranged in the first interval and connected to the first inner baffle and the second inner baffle at both ends respectively, the third telescopic connector is arranged in the second interval and connected to the first outer baffle and the second outer baffle at both ends respectively, and the second telescopic connector and the third telescopic connector are both elongated or reduced in size to adapt to the width of the tooth part of the core block.

[0010] In an embodiment, the first telescopic connector, the first skeleton body and the second skeleton body are integrally injection molded.

[0011] In an embodiment, the first telescopic connector, the first skeleton body, the second skeleton body, the second telescopic connector and the third telescopic connector are integrally injection molded.

[0012] In an embodiment, the first telescopic connector, the second telescopic connector and the third telescopic connector are all stretchable pleat members.

[0013] In an embodiment, the thickness of the pleat member is less than the thickness of the first skeleton body or the thickness of the second skeleton body.

[0014] According to the second aspect of the present application, the present application provides a stator block, which comprises two insulation skeletons and a core block, the tooth part of the core block is inserted into the slot of the two insulation skeletons respectively.

[0015] According to a third aspect of this application, this application provides an electric motor, including a plurality of the aforementioned stator blocks, and a rotor, wherein the plurality of the stator blocks are sequentially spliced ​​around the outer side of the rotor.

[0016] According to the above embodiments, the insulating frame, stator blocks, and motor, by setting the first telescopic connector, when the first frame body and the second frame body are subjected to forces that bring them closer together or further apart, the first telescopic connector can be extended or reduced, thereby changing the width of the slot to accommodate different sizes and types of iron core blocks. Only one insulating frame is needed to accommodate multiple types of stator iron core blocks, reducing manufacturing costs. Attached Figure Description

[0017] Figure 1 An exploded view of the stator block provided in this application in the first embodiment;

[0018] Figure 2 A perspective view of the insulating frame provided in this application in a first embodiment;

[0019] Figure 3 A perspective view of the stator block provided in this application in the first embodiment;

[0020] Figure 4 for Figure 3 Cross-sectional view along the AA direction;

[0021] Figure 5 An exploded view of the stator block provided in this application in a second embodiment;

[0022] Figure 6 A perspective view of the insulating frame provided in this application in a second embodiment;

[0023] Figure 7 A perspective view of the stator block provided in this application in a second embodiment.

[0024] Figure label:

[0025] Insulating frame 100, first frame body 10, first inner baffle 11, first outer baffle 12, first winding groove 13, second frame body 20, second inner baffle 21, second outer baffle 22, second winding groove 23, first telescopic connector 30, pleated component 31, slot 40, first interval 50, second interval 60, second telescopic connector 70, third telescopic connector 80;

[0026] The iron core is divided into 200 blocks, the tooth section is 201, the yoke is 202, and the stator is divided into 1000 blocks. Detailed Implementation

[0027] The application will be described in further detail below with specific reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without these specific details. In other instances, well-known structures have not been shown or described in detail to avoid obscuring aspects of the application. The detailed description is presented in terms of specific embodiments with reference to the accompanying drawings.

[0028] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can be sequentially adjusted or modified in a manner that can be apparent to those skilled in the art. Therefore, the specification and drawings are only intended to clearly describe one embodiment, and do not mean the necessary composition and / or order.

[0029] In this paper, the serial numbers of components, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "coupling" in this application include direct and indirect connection (coupling) unless otherwise specified.

[0030] The insulation frame in the motor stator is matched with the tooth width of the core, which can maximize the winding space. However, since one or one type of insulation frame can only match one or one type of size of the core, when other size of the core is used, the insulation frame needs to be re-opened and manufactured, thereby increasing the product manufacturing cost.

[0031] Referring to FIGS. 1 and 2, Figure 1 and Figure 5 As shown in FIGS. 1 and 2, an insulation frame 100 is installed at the axial ends of the core block 200, wherein the core block 200 includes a tooth portion 201 and a yoke portion 202, and the tooth portion 201 and the yoke portion 202 are connected to each other, so that the core block 200 forms a structure similar to an I-shaped structure. The axial ends of the tooth portion 201 of the core block 200 are the two ends along the height direction of the tooth portion 201, and the insulation frame is installed at the two ends. Figure 1 Different sizes of the core block 200 result in different widths of the tooth portion 201, and therefore, the insulation frame that can adapt to different sizes of the core block 200 needs to be designed and manufactured in the related art.

[0032] To solve the above problems, the application provides an insulation framework, a stator block and a motor, so as to adapt to different sizes of the core through the same insulation framework, and reduce the manufacturing cost.

[0033] Referring to Figures 1-7 As shown in the figure, the insulation framework 100 provided by the embodiment includes a first framework body 10, a second framework body 20 and a first telescopic connecting piece 30. The first telescopic connecting piece 30 is arranged between the first framework body 10 and the second framework body 20, and the two ends of the first telescopic connecting piece 30 are connected with the first framework body 10 and the second framework body 20 respectively. The first telescopic connecting piece 30 and the first framework body 10 and the second framework body 20 enclose a slot 40, which is used for the tooth part 201 of the core block 200 to be inserted. In other words, the slots 40 of the two insulation frameworks 100 can be respectively inserted into the two ends of the tooth part 201 along the axial direction (height direction) of the core block 200, so that the two insulation frameworks 100 can play an insulating role on the core block 200, and the winding can also be wound on the two insulation frameworks 100, thereby forming a stator block 1000. The stator blocks 1000 are sequentially spliced in the circumferential direction, and the stator of the motor is formed. The rotor is installed on the inner side of the stator to form the motor. For details, please refer to the subsequent embodiments.

[0034] In the embodiment, the first telescopic connecting piece 30 is elongated or reduced in size to adapt to the width of the tooth part 201 of the core block 200, so as to change the distance between the first framework body 10 and the second framework body 20. In the application, the rotor of the motor is composed of a permanent magnet and a rotating shaft arranged in the center of the permanent magnet. The stator blocks 1000 are arranged around the permanent magnet in the axial direction of the rotating shaft. The width of the tooth part 201 of the core block 200 can be understood as the size in the circumferential direction. The widths of the tooth parts 201 of the core blocks 200 of different sizes are different, so that the first telescopic connecting piece 30 is elongated or reduced in size to adapt to the tooth parts 201 of the core blocks 200 of different sizes.

[0035] The first telescopic connecting piece 30 has elasticity and can be elongated or reduced in size when the first framework body 10 and the second framework body 20 are subjected to the action force of approaching or moving away from each other, so as to change the width of the slot 40 between the first framework body 10 and the second framework body 20, so as to adapt to the tooth parts 201 of the core blocks 200 of different sizes.

[0036] In the natural state, the first skeleton body 10 and the second skeleton body 20 are not affected by the force, and the first telescopic connecting piece 30 is in the fixed length, at this time, the distance between the first skeleton body 10 and the second skeleton body 20 is not changed, in other words, the width of the slot 40 is not changed. When the width of the tooth portion 201 of the iron core block 200 is smaller than the width of the slot 40 in the natural state, in the process of inserting the tooth portion 201 of the iron core block 200 into the slot 40 of the insulation skeleton 100, the first skeleton body 10 and the second skeleton body 20 can be subjected to the force of moving close to each other, for example, the force can be provided in the process of winding, so that the first telescopic connecting piece 30 is reduced to reduce the width of the slot 40, so as to adapt to the width of the tooth portion 201. When the width of the tooth portion 201 of the iron core block 200 is greater than the width of the slot 40 in the natural state, in the process of inserting the tooth portion 201 of the iron core block 200 into the slot 40 of the insulation skeleton 100, the first skeleton body 10 and the second skeleton body 20 can be subjected to the force of moving away from each other, so that the first telescopic connecting piece 30 is elongated to increase the width of the slot 40, so as to adapt to the width of the tooth portion 201.

[0037] In some embodiments, the first telescopic connecting piece 30 can be made of a telescopic elastic material and can ensure the structural strength, for example, a plastic second material with a thickness thinner than the thickness of the first skeleton body 10 and the second skeleton body 20, please refer to the subsequent embodiments.

[0038] Referring to Figures 1-3 As shown in the figure, the first skeleton body 10 is provided with a first inner baffle 11 and a first outer baffle 12 extending away from the slot 40, and the second skeleton body 20 is provided with a second inner baffle 21 and a second outer baffle 22, the first inner baffle 11 and the second inner baffle 21 are closer to the rotor of the motor than the first outer baffle 12 and the second outer baffle 22, therefore, the first inner baffle 11 is arranged on the side of the first skeleton body 10 close to the rotor, the first outer baffle 12 is arranged on the side of the first skeleton body 10 away from the rotor, the second inner baffle 21 is arranged on the side of the second skeleton body 20 close to the rotor, and the second outer baffle 22 is arranged on the side of the second skeleton body 20 away from the rotor.

[0039] In this embodiment, a winding groove is formed between the first inner baffle 11 and the first outer baffle 12, and / or between the second inner baffle 21 and the second outer baffle 22, as Figure 2 As shown in the figure, a first winding groove 13 is formed between the first inner baffle 11 and the first outer baffle 12, and a second winding groove 23 is formed between the second inner baffle 21 and the second outer baffle 22, and the winding can be wound on the first winding groove 13 and the second winding groove 23.

[0040] In the first embodiment of the present application, as Figure 2As shown, the first inner baffle 11 and the second inner baffle 21 have a first interval 50 therebetween, the first outer baffle 12 and the second outer baffle 22 have a second interval 60 therebetween, the first interval 50 corresponds to the position of the one side of the first telescopic connecting piece 30 close to the rotor, and the second interval 60 corresponds to the position of the other side of the first telescopic connecting piece 30 away from the rotor.

[0041] The first interval 50 is a spacing space formed between the first inner baffle 11 and the second inner baffle 21, the second interval 60 is a spacing space formed between the first outer baffle 12 and the second outer baffle 22, and the first telescopic connecting piece 30 is not affected by the two spacing spaces when the first skeleton body 10 and the second skeleton body 20 are elongated or shortened.

[0042] In the first embodiment of the present application, the first telescopic connecting piece 30, the first skeleton body 10 and the second skeleton body 20 are integrally injection molded.

[0043] In the second embodiment of the present application, referring to Figures 5-7 As shown, the insulation skeleton 100 is further provided with a second telescopic connecting piece 70 and a third telescopic connecting piece 80, the second telescopic connecting piece 70 is arranged in the first interval 50 and connected to the first inner baffle 11 and the second inner baffle 21 at both ends of the second telescopic connecting piece 70, the third telescopic connecting piece 80 is arranged in the second interval 60 and connected to the first outer baffle 12 and the second outer baffle 22 at both ends of the third telescopic connecting piece 80, and the second telescopic connecting piece 70 and the third telescopic connecting piece 80 are both elongated or shortened according to the width of the tooth part of the iron core block 200. By arranging the second telescopic connecting piece and the third telescopic connecting piece, the enclosing part of the wire slot is increased, and the stability of the winding is improved.

[0044] In the second embodiment of the present application, the first telescopic connecting piece 30, the first skeleton body 10, the second skeleton body 20, the second telescopic connecting piece 70 and the third telescopic connecting piece 80 are integrally injection molded.

[0045] In the embodiment, the first telescopic connecting piece 30, the second telescopic connecting piece 70 and the third telescopic connecting piece 80 are all stretchable pleated members. For example, Figure 2 As shown, the first telescopic connecting piece 30 is taken as an example, the pleated member 31 formed by the first telescopic connecting piece 30 is similar to an M-shaped structure, and can be deformed when the first skeleton body 10 and the second skeleton body 20 are subjected to the action force of approaching or moving away from each other, so as to be elongated or shortened.

[0046] Similarly, the second telescopic connecting piece 70 is taken as an example, Figure 2The thickness of the illustrated wrinkle member 31 is less than the thickness of the first skeleton body 10 or the thickness of the second skeleton body 20, so as to guarantee the telescopic property of the first telescopic connecting piece 30.

[0047] The embodiment also provides a stator block 1000, as shown in Figure 1 、 Figure 3 and Figure 5 and Figure 7 The stator block 1000 comprises the two insulation skeletons 100 in the above-mentioned embodiments, and further comprises the core block 200, and the tooth portions 201 of the core block 200 are respectively inserted into the insertion slots 40 of the two insulation skeletons 100.

[0048] The application also provides an electric machine, which comprises a plurality of the above-mentioned stator blocks 1000 and a rotor, and the plurality of stator blocks 1000 are sequentially spliced outside the rotor.

[0049] In conclusion, in the insulation skeleton, the stator block and the electric machine provided by the application, the first telescopic connecting piece 30 is arranged, so that the first telescopic connecting piece 30 is elongated or reduced when the first skeleton body 10 and the second skeleton body 20 are subjected to the action force of approaching each other or moving away from each other, so as to change the width of the insertion slot 40, so as to adapt to different sizes of the core block 200, and only one kind of insulation skeleton can be adapted to a plurality of stator core blocks, so that the manufacturing cost is reduced.

[0050] The above application of specific examples is used to describe the application, which is only used to help understanding the application, and does not limit the application. According to the idea of the application, the skilled in the art of the application can make some simple deductions, deformation or substitution.

Claims

1. An insulating framework, characterized in that, The first skeleton body, the second skeleton body and the first telescopic connecting piece are provided, the first telescopic connecting piece is arranged between the first skeleton body and the second skeleton body, and the two ends of the first telescopic connecting piece are connected with the first skeleton body and the second skeleton body respectively, the first telescopic connecting piece, the first skeleton body and the second skeleton body enclose a slot, the slot is used for inserting the tooth part of the iron core block, and the first telescopic connecting piece is elongated or reduced according to the width of the tooth part of the iron core block.

2. The insulating skeleton according to claim 1, wherein The first skeleton body is provided with a first inner baffle and a first outer baffle extending away from the slot, the first inner baffle is arranged on the side of the first skeleton body close to the rotor, and the first outer baffle is arranged on the side of the first skeleton body away from the rotor; the second skeleton body is provided with a second inner baffle and a second outer baffle, the second inner baffle is arranged on the side of the second skeleton body close to the rotor, and the second outer baffle is arranged on the side of the second skeleton body away from the rotor; the first inner baffle and the first outer baffle and / or the second inner baffle and the second outer baffle form a wire slot, the first inner baffle and the second inner baffle have a first interval, the first outer baffle and the second outer baffle have a second interval, the first interval corresponds to the position of the side of the first telescopic connecting piece close to the rotor, and the second interval corresponds to the position of the side of the first telescopic connecting piece away from the rotor.

3. The insulation skeleton according to claim 2, wherein The insulation skeleton is further provided with a second telescopic connecting piece and a third telescopic connecting piece, the second telescopic connecting piece is arranged in the first interval and the two ends of the second telescopic connecting piece are connected with the first inner baffle and the second inner baffle respectively, the third telescopic connecting piece is arranged in the second interval and the two ends of the third telescopic connecting piece are connected with the first outer baffle and the second outer baffle respectively, and the second telescopic connecting piece and the third telescopic connecting piece are elongated or reduced according to the width of the tooth part of the iron core block.

4. The insulating skeleton according to claim 3, wherein The first telescopic connecting piece, the first skeleton body and the second skeleton body are integrally injection molded.

5. The insulating skeleton according to claim 3, wherein The first telescopic connecting piece, the first skeleton body, the second skeleton body, the second telescopic connecting piece and the third telescopic connecting piece are integrally injection molded.

6. The insulating skeleton according to claim 5, wherein The first telescopic connecting piece, the second telescopic connecting piece and the third telescopic connecting piece are all stretchable wrinkle members.

7. The insulating skeleton according to claim 6, wherein The thickness of the wrinkle member is smaller than the thickness of the first skeleton body or the thickness of the second skeleton body.

8. A stator segment, characterized by The insulation skeleton comprises two insulation skeletons according to any one of claims 1-7, and further comprises an iron core block, and the tooth part of the iron core block is inserted into the slots of the two insulation skeletons respectively.

9. An electric machine characterized by The stator block comprises a plurality of stator blocks according to claim 8, and further comprises a rotor, and the plurality of stator blocks are sequentially spliced outside the rotor.

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