Stator winding slot interior and end part fixing structure of less-glue VPI (Vacuum Plating Insulation) whole immersion insulation system

Abstract

The utility model discloses a stator winding slot interior and end portion fixing structure of a less-glue VPI whole immersion insulation system, which belongs to the technical field of stator processing, and is characterized by comprising an insulation system body shell, a limiting mechanism and an adjusting mechanism, a stator body is arranged on the inner side of the insulation system body shell, and the limiting mechanism is arranged on the inner side of the insulation system body shell. The surface of the stator body is fixedly connected with the stator end part, the insulation system body shell, the stator body, the stator end part and the limiting mechanism are arranged, and the insulation system body shell is a shell of an existing insulation system, so that connection between the stator body and the limiting mechanism and connection between the stator end part and the limiting mechanism can be limited; the buffering inner shell can support and limit the limiting bag, the limiting bag can be matched with the liquid inlet, and after the stator body and the stator end make contact with the limiting groove and the positioning end, filling liquid in the adjusting mechanism is conveyed into the limiting bag through the liquid inlet, and the limiting bag can be gradually expanded under filling of the filling liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of stator processing, in particular to a stator winding slot and end fixing structure of a low-resistance VPI integral impregnation insulation system. Background Art

[0002] The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system is an important structure used in motor equipment. The slot is usually fixed with slot wedges and conformal materials to prevent the winding displacement, and the ends are equipped with binding tapes, end clamps, etc. to enhance the integrity and stability. This structure is used for the motor stator winding to ensure the stable position of the winding during operation and avoid displacement or loosening due to vibration, electromagnetic force, etc.

[0003] In existing automotive motors, the stator core and stator base are assembled together using a snap-fit structure. However, during use, the stator is subjected to the reaction force of the motor rotor, which can cause the assembled parts to fail, resulting in large gaps in the motor system and the failure of electromagnetic interaction.

[0004] An existing comparative example, a Chinese utility model with publication number CN212304908U, discloses a motor stator fixing structure, which belongs to the technical field of motor stators and includes: an insert wrapped around the outside of the stator core; a base shell, which is molded as one piece with the insert by injection molding, and a portion of the base shell extends to the inside of the insert and the stator core; the motor stator fixing structure of this utility model fixes the stator core to the base shell by injection molding, ensuring the reliable installation of the motor stator, ensuring the sealing requirements of the motor stator, and realizing dustproof, waterproof and oilproof properties of the motor stator.

[0005] In response to the above problems, the existing patent provides a solution. When fixing the stator winding slots and ends, due to the lack of an adjustable adaptive fixing structure, it is impossible to adapt to different deviations of the stator winding slots and ends, reducing the flexibility when fixing the stator winding slots and ends.

[0006] Therefore, a stator winding slot and end fixing structure of a low-resistance VPI integral impregnation insulation system is proposed. Utility Model Content

[0007] The purpose of the present utility model is to provide a stator winding slot and end fixing structure for a low-glue VPI integral impregnation insulation system, which can solve the problem that when fixing the stator winding slot and end, the stator winding slot and end cannot adapt to different deviations due to the lack of an adjustable adaptive fixing structure, thereby reducing the flexibility of fixing the stator winding slot and end.

[0008] To achieve the above objectives, the present invention provides the following technical solutions: a stator winding slot and end fixing structure for a low-resistance VPI integral impregnation insulation system, comprising an insulation system body shell, a limiting mechanism, and an adjustment mechanism. A stator body is provided on the inner side of the insulation system body shell, a stator end is fixedly connected to the surface of the stator body, the surface of the stator end is engaged with the inner side of the limiting mechanism, and the adjustment mechanism is connected to the front side of the limiting mechanism.

[0009] The limiting mechanism includes a buffer inner shell, a limiting capsule, a liquid inlet, a limiting groove and a positioning end. The buffer inner shell is clamped on the inner side of the outer shell of the insulation system body, the limiting capsule is fixedly connected to the inner side of the buffer inner shell, the liquid inlet is opened on the front side of the limiting capsule, the limiting groove is opened on the inner side of the limiting capsule, the positioning end is fixedly connected to the inner side of the limiting capsule, the inner side of the positioning end contacts the surface of the stator body, and the inner side of the limiting groove contacts the surface of the stator end.

[0010] Preferably, the regulating mechanism includes a diverter assembly and a liquid delivery assembly, the diverter assembly is connected to the front side of the liquid inlet, the rear side of the diverter assembly is engaged with the front side of the buffer inner shell, and the liquid delivery assembly is fixedly connected to the front side of the diverter assembly.

[0011] Preferably, the diversion assembly includes a positioning ring, a drainage ring, a guide plate and a drainage port. The positioning ring is clamped on the front side of the insulation system body shell, the drainage ring is fixedly connected to the front side of the positioning ring, the guide plate is fixed on the front side of the positioning ring, and the drainage port is opened on the front side of the positioning ring. The front side of the drainage port passes through the guide plate and is connected to the guide plate.

[0012] Preferably, the liquid delivery assembly includes a closing plate, a liquid pump and a liquid storage ring box, the closing plate is fixedly connected to the front side of the drainage ring, the liquid pump is connected to the front side of the closing plate, the liquid storage ring box is fixedly connected to the front side of the closing plate, and the rear side of the liquid storage ring box is connected to the liquid pump.

[0013] Preferably, an auxiliary plate is fixedly connected to the surface of the limiting capsule, and the surface of the auxiliary plate is clamped with the surface of the stator end.

[0014] Preferably, a current collecting plate is fixedly connected to the front side of the guide plate, and the current collecting plate is configured as an inclined surface.

[0015] Preferably, a reinforcement plate is bolted to the rear side of the positioning ring, and the rear side of the reinforcement plate is clamped to the front side of the insulation system body shell.

[0016] Preferably, a guide groove is provided on the front side of the closing plate, and the guide groove is annular.

[0017] Preferably, the front side of the liquid suction pump is connected to a liquid drainage tube, and the front side of the liquid drainage tube is configured to be funnel-shaped.

[0018] Preferably, the front side of the liquid storage ring box is connected to a connecting valve, and the front side of the connecting valve is provided with a thread.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The present application provides an insulation system body shell, a stator body, a stator end, and a limiting mechanism. The insulation system body shell is the shell of an existing insulation system and can limit the connection between the stator body and the stator end and the limiting mechanism. The buffer inner shell can support and limit the limiting capsule. The limiting capsule can cooperate with the liquid inlet. After the stator body and the stator end contact the limiting groove and the positioning end, when the filling liquid in the adjustment mechanism is transported into the limiting capsule through the liquid inlet, the limiting capsule will gradually expand under the filling of the filling liquid and limit the stator body and the stator end. Thus, it can adapt to stator bodies and stator ends with different deviations, and improve the stability of the connection between the stator body and the stator end and the insulation system body shell.

[0021] 2. In this application, an adjustment mechanism is provided, and the diversion component can cooperate with the liquid delivery component. When the filling liquid in the liquid storage ring box is delivered to the guide plate by the liquid pump, the filling liquid will gradually flow along the drainage ring to the drainage port, thereby delivering the filling liquid to the limit mechanism, and the liquid pump can be used to control the amount of filling liquid delivered, thereby improving the stability of the filling liquid delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the overall structural diagram of the stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the stator body of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the limiting mechanism of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0026] Figure 5 This is a structural diagram of the diversion component of the utility model;

[0027] Figure 6 This is a structural diagram of the liquid delivery component of the utility model.

[0028] In the figure, 1. Insulation system body shell; 2. Stator body; 3. Stator end; 4. Limiting mechanism; 401. Buffer inner shell; 402. Limiting capsule; 403. Liquid inlet; 404. Limiting groove; 405. Positioning end; 5. Adjusting mechanism; 501. Diverter assembly; 5011. Positioning ring; 5012. Drainage ring; 5013. Guide plate; 5014. Drainage port; 502. Liquid delivery assembly; 5021. Closing plate; 5022. Liquid pump; 5023. Liquid storage ring box; 6. Auxiliary plate; 7. Collecting plate; 8. Reinforcement plate; 9. Guide groove; 10. Drainage tube; 11. Connecting valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 , this utility model provides a technical solution:

[0031] The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system includes an insulation system body shell 1, a limiting mechanism 4, and an adjustment mechanism 5. The stator body 2 is provided on the inner side of the insulation system body shell 1. The stator end 3 is fixedly connected to the surface of the stator body 2. The surface of the stator end 3 is clamped to the inner side of the limiting mechanism 4. The adjustment mechanism 5 is connected to the front side of the limiting mechanism 4.

[0032] The limiting mechanism 4 includes a buffer inner shell 401, a limiting capsule 402, a liquid inlet 403, a limiting groove 404 and a positioning end 405. The buffer inner shell 401 is clamped on the inner side of the insulation system body shell 1, the limiting capsule 402 is fixedly connected to the inner side of the buffer inner shell 401, the liquid inlet 403 is opened on the front side of the limiting capsule 402, the limiting groove 404 is opened on the inner side of the limiting capsule 402, the positioning end 405 is fixedly connected to the inner side of the limiting capsule 402, the inner side of the positioning end 405 contacts the surface of the stator body 2, and the inner side of the limiting groove 404 contacts the surface of the stator end 3.

[0033] In this embodiment: by setting the insulation system body shell 1, the stator body 2, the stator end 3 and the limiting mechanism 4, the insulation system body shell 1 is the shell of the existing insulation system, which can limit the connection between the stator body 2 and the stator end 3 and the limiting mechanism 4, and the buffer inner shell 401 can support and limit the limiting capsule 402. The limiting capsule 402 can cooperate with the liquid inlet 403. After the stator body 2 and the stator end 3 contact the limiting groove 404 and the positioning end 405, when the filling liquid in the adjustment mechanism 5 is transported to the limiting capsule 402 through the liquid inlet 403, the limiting capsule 402 will gradually expand under the filling of the filling liquid and limit the stator body 2 and the stator end 3, so that it can adapt to the stator body 2 and the stator end 3 with different deviations, thereby improving the stability of the connection between the stator body 2 and the stator end 3 and the insulation system body shell 1.

[0034] Specifically, such as Figure 4 As shown, the regulating mechanism 5 includes a diverter component 501 and a liquid supply component 502. The diverter component 501 is connected to the front side of the liquid inlet 403, the rear side of the diverter component 501 is clamped with the front side of the buffer inner shell 401, and the liquid supply component 502 is fixedly connected to the front side of the diverter component 501.

[0035] Specifically, such as Figure 5 As shown, the diversion assembly 501 includes a positioning ring 5011, a drainage ring 5012, a guide plate 5013 and a drainage port 5014. The positioning ring 5011 is clamped on the front side of the insulation system body shell 1, the drainage ring 5012 is fixedly connected to the front side of the positioning ring 5011, the guide plate 5013 is fixed on the front side of the positioning ring 5011, and the drainage port 5014 is opened on the front side of the positioning ring 5011. The front side of the drainage port 5014 passes through the guide plate 5013 and is connected to the guide plate 5013.

[0036] Specifically, such as Figure 6 As shown, the liquid delivery component 502 includes a closing plate 5021, a liquid pump 5022 and a liquid storage ring box 5023. The closing plate 5021 is fixedly connected to the front side of the drainage ring 5012, the liquid pump 5022 is connected to the front side of the closing plate 5021, the liquid storage ring box 5023 is fixedly connected to the front side of the closing plate 5021, and the rear side of the liquid storage ring box 5023 is connected to the liquid pump 5022.

[0037] In this embodiment: by setting up the adjustment mechanism 5, the diversion component 501 can cooperate with the liquid delivery component 502. When the filling liquid in the liquid storage ring box 5023 is delivered to the guide plate 5013 by the liquid pump 5022, the filling liquid will gradually flow along the drainage ring 5012 to the drainage port 5014, thereby realizing the delivery of the filling liquid to the limiting mechanism 4, and the amount of the filling liquid delivered can be controlled by the liquid pump 5022, thereby improving the stability of the filling liquid delivery.

[0038] Specifically, such as Figure 3 As shown, the surface of the limiting capsule 402 is fixedly connected to the auxiliary plate 6 , and the surface of the auxiliary plate 6 is engaged with the surface of the stator end 3 .

[0039] Specifically, such as Figure 5 As shown, the front side of the guide plate 5013 is fixedly connected to the collecting plate 7, and the collecting plate 7 is set as an inclined surface.

[0040] In this embodiment: by providing an auxiliary plate 6 and a collecting plate 7, the auxiliary plate 6 can cooperate with the limiting capsule 402, and the stator end 3 can be clamped by the auxiliary plate 6, which can further increase the stability of the limiting capsule 402 when limiting the stator end 3. By guiding the fluid through the collecting plate 7, the filling liquid on the guide plate 5013 can be further guided, thereby increasing the stability of the filling liquid during transportation.

[0041] Specifically, such as Figure 5 As shown, the rear side of the positioning ring 5011 is bolted with a reinforcing plate 8 , and the rear side of the reinforcing plate 8 is clamped with the front side of the insulation system body shell 1 .

[0042] Specifically, such as Figure 6 As shown, a guide groove 9 is provided on the front side of the closing plate 5021, and the guide groove 9 is annular.

[0043] In this embodiment: by providing a reinforcement plate 8 and a guide groove 9, the reinforcement plate 8 limits the positioning ring 5011 and the insulation system main body shell 1, so that the stability of the connection between the positioning ring 5011 and the insulation system main body shell 1 can be further increased, and the filling fluid is evenly guided to the liquid pump 5022 by the guide groove 9, which can further increase the stability of the closing plate 5021 when transporting the filling liquid.

[0044] Specifically, such as Figure 6 As shown, the front side of the liquid suction pump 5022 is connected to the liquid drainage tube 10, and the front side of the liquid drainage tube 10 is set to be funnel-shaped.

[0045] Specifically, such as Figure 6 As shown, the front side of the liquid storage ring box 5023 is connected to the connecting valve 11, and the front side of the connecting valve 11 is provided with a thread.

[0046] In this embodiment: by providing a liquid inlet tube 10 and a connecting valve 11, the liquid is centrally transported to the liquid pump 5022 through the liquid inlet tube 10, which can further increase the stability of the liquid pump 5022 in transporting the filling liquid. By connecting the valve 11 to an external filling liquid transporting device, the flexibility of filling the liquid storage ring box 5023 can be further controlled.

[0047] Working principle: First, install the stator body 2 and the stator end 3 in the limiting groove 404 until the stator body 2 contacts the positioning end 405, and then energize and start the liquid pump 5022. The liquid pump 5022 will pump the filling liquid from the liquid storage ring box 5023 into the drainage ring 5012. Thereafter, the filling liquid will be transported along the guide plate 5013 in the drainage ring 5012 to the drainage port 5014, and finally flow from the liquid inlet 403 through the drainage port 5014 into the limiting capsule 402. The limiting capsule 402 will gradually expand with the transported filling liquid until the stator end 3 is limited, and the positioning end 405 is further engaged with the stator body 2.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stator winding slot and end fixing structure for a low-resistance VPI integral impregnation insulation system, comprising an insulation system body shell (1), a limiting mechanism (4) and an adjustment mechanism (5), characterized in that: A stator body (2) is provided on the inner side of the insulation system body shell (1); a stator end (3) is fixedly connected to the surface of the stator body (2); the surface of the stator end (3) is engaged with the inner side of a limiting mechanism (4); and the adjustment mechanism (5) is connected to the front side of the limiting mechanism (4); The limiting mechanism (4) comprises a buffer inner shell (401), a limiting capsule (402), a liquid inlet (403), a limiting groove (404) and a positioning end (405); the buffer inner shell (401) is clamped on the inner side of the insulation system body shell (1); the limiting capsule (402) is fixedly connected to the inner side of the buffer inner shell (401); the liquid inlet (403) is provided on the front side of the limiting capsule (402); the limiting groove (404) is provided on the inner side of the limiting capsule (402); the positioning end (405) is fixedly connected to the inner side of the limiting capsule (402); the inner side of the positioning end (405) contacts the surface of the stator body (2); and the inner side of the limiting groove (404) contacts the surface of the stator end (3).

2. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 1 is characterized by: The regulating mechanism (5) comprises a diverter assembly (501) and a liquid-feeding assembly (502); the diverter assembly (501) is connected to the front side of the liquid inlet (403); the rear side of the diverter assembly (501) is engaged with the front side of the buffer inner shell (401); and the liquid-feeding assembly (502) is fixedly connected to the front side of the diverter assembly (501).

3. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 2 is characterized by: The diversion assembly (501) comprises a positioning ring (5011), a drainage ring (5012), a guide plate (5013) and a drainage port (5014); the positioning ring (5011) is clamped on the front side of the insulation system body shell (1); the drainage ring (5012) is fixedly connected to the front side of the positioning ring (5011); the guide plate (5013) is fixed to the front side of the positioning ring (5011); the drainage port (5014) is opened on the front side of the positioning ring (5011); the front side of the drainage port (5014) passes through the guide plate (5013) and is in communication with the guide plate (5013).

4. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 3 is characterized by: The liquid delivery assembly (502) includes a closing plate (5021), a liquid extraction pump (5022) and a liquid storage ring box (5023), wherein the closing plate (5021) is fixedly connected to the front side of the drainage ring (5012), the liquid extraction pump (5022) is connected to the front side of the closing plate (5021), the liquid storage ring box (5023) is fixedly connected to the front side of the closing plate (5021), and the rear side of the liquid storage ring box (5023) is connected to the liquid extraction pump (5022).

5. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 1 is characterized by: An auxiliary plate (6) is fixedly connected to the surface of the limiting capsule (402), and the surface of the auxiliary plate (6) is snap-fitted to the surface of the stator end (3).

6. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 3 is characterized by: A current collecting plate (7) is fixedly connected to the front side of the guide plate (5013), and the current collecting plate (7) is configured as an inclined surface.

7. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 3 is characterized by: A reinforcing plate (8) is bolted to the rear side of the positioning ring (5011), and the rear side of the reinforcing plate (8) is clamped to the front side of the insulation system body shell (1).

8. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 4 is characterized by: A guide groove (9) is provided on the front side of the closing plate (5021), and the guide groove (9) is annular.

9. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 4 is characterized by: The front side of the liquid extraction pump (5022) is connected to a liquid drainage tube (10), and the front side of the liquid drainage tube (10) is configured to be funnel-shaped.

10. The stator winding slot and end fixing structure of the low-resistance VPI integral impregnation insulation system according to claim 4 is characterized by: The front side of the liquid storage ring box (5023) is connected to a connecting valve (11), and the front side of the connecting valve (11) is provided with a thread.

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