Spliced stator structure of motor

Abstract

The utility model relates to the technical field of motor manufacturing, and discloses a motor block type stator structure, which comprises a plug sheath and a plurality of block assemblies capable of being spliced into an annular structure, and a winding is wound on each block assembly; the plug sheath comprises a main body installed at the top of the block assembly, one end of the main body is provided with a terminal inlet used for connecting the extension end of the winding, the other end of the main body is provided with a terminal outlet connected with a binding post, and one side of the main body is further provided with a buckling assembly connected with the block assembly. A plurality of block assemblies are spliced to form a whole, the extension end of the winding is connected into an inlet of the plug sheath, and an outlet of the plug sheath can be connected with a binding post of a controller, so that copper bar welding or a lead-out wire terminal is replaced for wiring; by adopting the structure mode, the process can be simplified, the product quality can be improved, and the production cost can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, specifically to a modular stator structure for motors. Background Technology

[0002] To address the quality issues of the internal windings in motor stators, the stator core typically employs a modular structure, with a frame used for insulation between the windings and the core modules. Multiple modules are joined together to form a single unit. Currently, the wiring method for stator windings in electric compressor motors for new energy vehicles generally involves using enameled wires extended from each phase winding as welding wires, connecting them via copper busbars or lead-out terminals, and then sealing and fixing them with epoxy resin.

[0003] However, in the field of compressor motors, the limited stator height results in small gaps between copper busbars or lead-out terminals of different phases. This can lead to insufficient glue filling, causing short circuits or inter-turn defects and failure risks. Furthermore, mass production involves complex and unstable processes, leading to further quality risks. Therefore, a new stator wire management structure is needed to solve these process problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a modular stator structure for motors. When managing the wires, the extended end of the winding is connected to the inlet of the plug sheath and the terminal outlet is connected to the terminal post, which replaces potting or welding methods, making the process simpler and reducing production costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a modular stator structure for a motor, including a plug sheath and multiple modular components that can be assembled into a ring structure, and each modular component is wound with a winding; the plug sheath includes a main body installed on the top of the modular component, one end of the main body is provided with a terminal inlet for the extension end of the winding to be connected, the other end is provided with a terminal outlet connected to a terminal post, and a snap-fit ​​component connected to the modular component is also provided on one side of the main body.

[0006] Optionally, the segmented assembly includes a stator segment, a first frame, and a second frame. The first frame and the second frame are fitted onto the stator segment, and the first frame has a through slot for connecting the fastening assembly.

[0007] Optionally, the fastening assembly includes a buckle fixedly connected to the main body, the lower part of which is embedded in the through groove.

[0008] Optionally, a slot is provided on the inner side of the through groove, and the end of the buckle has a barb, which is engaged in the slot.

[0009] Optionally, the fastening assembly further includes two limiting blocks fixedly connected to the main body. The two limiting blocks are spaced apart on both sides of the buckle, and both limiting blocks are embedded in the through groove.

[0010] Optionally, the first frame has a first groove, the second frame has a second groove, and the first groove and the second groove are joined together to form a winding groove for winding the winding.

[0011] Optionally, the through slot is located at the top of the outer side of the first frame, and the outer side of the first frame is also provided with a window communicating with the winding slot, and the wire harness passes through the window to fix the extension end of the winding above the winding.

[0012] Optionally, a limiting groove is provided above the window, and one side of the wire harness is embedded in the limiting groove.

[0013] Optionally, a boss for fixing the winding take-up extension end is provided on the top of the inner side of the first frame.

[0014] Optionally, the terminal inlet is parallel to the axis of the stator, and the axis of the terminal inlet is perpendicular to the axis of the terminal outlet.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) In this utility model, multiple modular components are spliced ​​together to form a whole, and the extension end of the winding is connected to the inlet of the plug sheath, and the outlet of the plug sheath can be connected to the terminal block of the controller, thereby replacing the welding of copper busbars or the lead wire terminals for wiring; by adopting this structure, the process can be simplified, the quality of the product can be improved, and the production cost can be greatly reduced.

[0017] (2) In this utility model, the wire harness can pass through the window by an automated rope binding method, and fix the extension end of the winding on the first frame so that it is located above the winding, thereby simplifying the process and reducing production costs;

[0018] (3) In this utility model, the limiting groove above the window can be used to limit the wire harness, making the winding extension end more compact and the production method simpler and more convenient;

[0019] (4) In this utility model, a through groove is provided on the outer side of the first frame, and a slot is provided in the through groove. The buckle of the plug sheath is tightly fitted with the slot, and the through groove restricts the buckle, which can prevent the plug sheath from being disengaged and flipped.

[0020] (5) In this utility model, a boss is provided on the inner side of the first frame, which makes it convenient to fix the winding extension end on the boss after the winding machine completes the winding. This can avoid quality problems caused by the winding being loose due to the inability to fix the winding end. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the modular stator structure of the motor in this embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the segmented component in an embodiment of this utility model;

[0023] Figure 3 This is an exploded view of the modular component in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the boss structure in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram showing the position and structure of the through groove and the slot in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the plug sheath in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the buckle and slot structure in an embodiment of this utility model;

[0028] Among them, 1. Segmented assembly; 2. Plug sheath; 201. Main body; 202. Terminal inlet; 203. Terminal outlet; 204. Buckle; 205. Limiting block; 3. Wiring harness;

[0029] 4. Stator segmentation; 401. Protrusion; 402. Groove;

[0030] 5. First frame; 501. First groove; 502. Through groove; 503. Card slot; 504. Window; 505. Limiting groove; 506. Boss;

[0031] 6. Second frame; 601. Second groove. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] like Figure 1 As shown, a modular stator structure for an electric motor includes a plug sheath 2 and multiple modular components 1 that can be assembled into a ring structure, and each modular component 1 is wound with a winding.

[0034] The plug sleeve 2 is located above the winding, and the winding extension end is electrically connected to one end of the plug sleeve 2. The other end of the plug sleeve 2 is connected to the controller's terminal block. This method replaces the previous method of welding copper busbars or using lead-out terminals for wiring, followed by sealing with epoxy resin. This simplifies the process, improves product quality, and significantly reduces production costs.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the segmented assembly 1 includes a stator segment 4, a first frame 5, and a second frame 6, with the first frame 5 and the second frame 6 fitted together on the stator segment 4. The first frame 5 has a first groove 501, and the second frame 6 has a second groove 601, with the first groove 501 and the second groove 601 fitting together to form a winding groove for winding the winding.

[0036] The stator block 4 adopts an I-shaped structure. The lower end of the first frame 5 and the upper end of the second frame 6 are both provided with mounting grooves. They are fitted into the middle of the stator block 4 in an up-and-down matching manner. After the first frame 5 and the second frame 6 are matched, the first wire groove 501 and the second wire groove 601 form a winding groove. The winding machine can automatically wind the winding into the winding groove.

[0037] As described above, the two sides of the stator block 4 are respectively provided with opposing protrusions 401 and grooves 402, and the protrusions 401 can be embedded in the grooves 402 of the adjacent stator block 4, thereby realizing the connection between the two adjacent block components 1, and thus splicing multiple block components 1 into a ring-shaped stator whole.

[0038] Furthermore, the outer side of the first frame 5 is provided with a window 504 that communicates with the winding groove, and the wire harness 3 passes through the window 504 to fix the extension end of the winding above the winding; the wire harness 3 can pass through the window 504 by an automated rope binding method to fix the extension end of the winding on the first frame 5, so that it is located above the winding, thereby simplifying the process and reducing production costs.

[0039] To ensure that the wiring harness 3 is accurately positioned and does not shift arbitrarily, a limiting groove 505 is provided above the window 504, and one side of the wiring harness 3 is embedded in the limiting groove 505. That is, one end of the wiring harness 3 passes through the window 504 and below the winding extension end and then flips upward. The two ends of the wiring harness 3 are then tied together to fix the winding extension above the winding. The limiting groove 505 above the window 504 can be used to limit the wiring harness 3, making the winding extension end tighter and the production method simpler and more convenient.

[0040] In addition, a boss 506 for fixing the winding take-up extension end is provided on the top of the inner side of the first frame 5. The boss 506 is provided on the inner side of the first frame 5, and notches are opened on both sides of the bottom of the boss 506, so that the winding take-up extension end can be fixed on the boss 506 after the winding machine completes the winding. This can avoid quality problems caused by the winding being loose due to the inability to fix the winding take-up extension end.

[0041] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the plug sleeve 2 includes a main body 201, a terminal inlet 202, a terminal outlet 203, and a snap-fit ​​assembly for connecting the plug sleeve 2 and the segment assembly 1. The main body 201 is installed on the top of the segment assembly 1. The terminal inlet 202 and the terminal outlet 203 are located at the side and top of the main body 201, respectively. The extension end of the winding can be connected to the terminal inlet 202, and the terminal of the controller can be connected to the terminal outlet 203, thereby realizing the electrical connection between the winding and the controller.

[0042] The terminal inlet 202 is parallel to the axis of the stator, and the axis of the terminal inlet 202 is perpendicular to the axis of the terminal outlet 203. There are three terminal inlets 202 and three terminal outlets 203, and they correspond one-to-one. The terminal outlet 203 is vertically upward for easy connection to the terminal block; the terminal inlet 202 is horizontal for easy access to the winding extension end.

[0043] As described above, the first frame 5 has a through groove 502 for connecting the fastening assembly. The fastening assembly includes a buckle 204 that is fixedly connected to the main body 201. The lower part of the buckle 204 is embedded in the through groove 502 to achieve a fixed connection between the plug sleeve 2 and the segmented assembly 1.

[0044] The through groove 502 is located on the top of the outer side of the first frame 5. A slot 503 is provided on the inner side of the through groove 502. The end of the buckle 204 has a barb, which is engaged in the slot 503. When the buckle 204 is inserted into the through groove 502 and the barb is engaged in the slot 503, the fastening assembly is engaged with the first frame 5, thereby fixing the plug sleeve 2 and the segment assembly 1 together.

[0045] Specifically, the outer side of the first frame 5 is provided with a through groove 502, and the through groove 502 is provided with a slot 503. The buckle 204 of the plug sleeve 2 is tightly engaged with the slot 503, and the through groove 502 restricts the buckle 204, which can prevent the plug sleeve 2 from being disengaged and flipped.

[0046] Furthermore, the fastening assembly also includes two limiting blocks 205 fixedly connected to the main body 201. The two limiting blocks 205 are spaced apart on both sides of the buckle 204, and both limiting blocks 205 are embedded in the through groove 502. The limiting blocks 205 and the buckle 204 adopt an integral molding structure. When the buckle 204 is embedded in the through groove 502, the outer side of the limiting block 205 fits against the inner side of the through groove 502, ensuring that the buckle 204 will not wobble after it is engaged with the slot 503, thereby preventing the plug sleeve 2 from disengaging and flipping.

[0047] In summary, this utility model proposes a modular stator structure for motors. The first frame 5 and the second frame 6 are mounted on the stator block 4 to form a block assembly 1. The winding is wound in its winding slot, and multiple block assemblies 1 are spliced ​​together to form a whole stator. The wire harness 3 passes through the window 504 of the first frame 5 to fix the extension end of the winding above the winding, while the plug sleeve 2 connects to the extension end of the winding and is fixed to the first frame 5. The wire management method of this structure replaces potting or welding, which can simplify the process and reduce production costs.

[0048] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A modular stator structure for an electric motor, characterized in that: It includes a plug sheath (2) and multiple modular components (1) that can be spliced ​​into a ring structure, and each modular component (1) is wound with a winding. The plug sheath (2) includes a main body (201) installed on the top of the segment assembly (1). One end of the main body (201) is provided with a terminal inlet (202) for the extension end of the winding to be connected, and the other end is provided with a terminal outlet (203) connected to the terminal block. A snap-fit ​​assembly connected to the segment assembly (1) is also provided on one side of the main body (201).

2. The modular stator structure for motors according to claim 1, characterized in that: The segmented assembly (1) includes a stator segment (4), a first frame (5) and a second frame (6). The first frame (5) and the second frame (6) are fitted together on the stator segment (4), and the first frame (5) has a through groove (502) for connecting the fastening assembly.

3. The modular stator structure for motors according to claim 2, characterized in that: The fastening assembly includes a buckle (204) fixedly connected to the main body (201), the lower part of which is embedded in the through groove (502).

4. The modular stator structure for motors according to claim 3, characterized in that: The inner side of the through groove (502) is provided with a slot (503), and the end of the buckle (204) has a barb, and the barb is fastened into the slot (503).

5. The modular stator structure for motors according to claim 3, characterized in that: The fastening assembly also includes two limiting blocks (205) fixedly connected to the main body (201). The two limiting blocks (205) are spaced apart on both sides of the buckle (204), and both limiting blocks (205) are embedded in the through groove (502).

6. The modular stator structure for motors according to claim 2, characterized in that: The first frame (5) has a first wire groove (501) and the second frame (6) has a second wire groove (601). The first wire groove (501) and the second wire groove (601) are joined together to form a winding groove for winding the winding.

7. The modular stator structure for motors according to claim 6, characterized in that: The through slot (502) is located on the top of the outside of the first frame (5). The outside of the first frame (5) is also provided with a window (504) that communicates with the winding slot, and the wire harness (3) passes through the window (504) to fix the extension end of the winding above the winding.

8. The modular stator structure for motors according to claim 7, characterized in that: A limiting groove (505) is provided above the window (504), and one side of the wire harness (3) is embedded in the limiting groove (505).

9. The modular stator structure for motors according to claim 2, characterized in that: The top of the inner side of the first frame (5) is provided with a boss (506) for fixing the winding take-up extension end.

10. The modular stator structure for motors according to any one of claims 1-9, characterized in that: The terminal inlet (202) is parallel to the axis of the stator, and the axis of the terminal inlet (202) is perpendicular to the axis of the terminal outlet (203).

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