Stator assembly with high reliability and high sealing performance

Abstract

The stator assembly comprises a housing and a lead sub-assembly arranged at the top of the housing, a plurality of magnetic poles are arranged in the housing in a central symmetry manner, one side, close to the housing, of each magnetic pole is fixedly connected with a spin riveting boss, one end of each spin riveting boss is provided with a riveting groove, and the other end of each spin riveting boss is provided with a riveting groove. Boss holes are formed in the middle of the shell in a central symmetry mode, and the spin riveting bosses are connected into the boss holes in a penetrating and inserting mode. According to the utility model, through the design of the boss hole, the spin riveting boss and the riveting groove, the spin riveting boss and the magnetic pole are integrally manufactured, and when the position of the magnetic pole needs to be fixed, the cylindrical spin riveting boss on the magnetic pole passes through the boss hole on the shell, so that the position of the magnetic pole is fixed; and then the cylindrical spin riveting boss is riveted into the shape matched with the boss hole in a riveting mode, the position of the magnetic pole is fixed through the spin riveting boss and the boss hole, and the risk that the starter fails due to the fact that the magnetic pole loosens and falls off is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stator assemblies, in particular to a stator assembly with high reliability and high sealing performance. Background Art

[0002] The stator assembly is one of the important components in a motor or generator, which is used to generate a magnetic field and interact with the rotor to generate electromagnetic induction.

[0003] When fixing the magnetic poles to the housing, the traditional fixing method is to drill holes and tap threads on the magnetic poles, and use magnetic pole bolts to fix the magnetic poles when assembling the stator assembly. After the engine is installed, the magnetic poles are affected by the vibration of the engine and the magnetic field of the motor when the starter is running, causing the magnetic poles to loosen and fall off, resulting in the risk of starter failure. Utility Model Content

[0004] The purpose of the utility model is to provide a stator assembly with high reliability and high sealing performance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stator assembly with high reliability and high sealing performance, comprising a shell and a lead sub-assembly arranged on the top of the shell, a plurality of magnetic poles are symmetrically arranged at the center of the shell, a riveted boss is fixedly connected to one side of the magnetic pole close to the shell, a rivet groove is provided at one end of the riveted boss, a boss hole is symmetrically provided at the center of the middle part of the shell, the riveted boss is inserted and connected inside the boss hole, a through hole is provided at the top of the shell, a connecting component for connecting the magnetic pole and the lead sub-assembly is inserted and connected inside the through hole, and an annular ring is provided on one side of the shell.

[0006] Preferably, the connection component comprises a wire-outlet nail arranged at the output end of the magnetic pole, the cross-section of the wire-outlet nail is arranged in an I-shape, a connecting piece is sleeved on the top of the wire-outlet nail, and the connecting piece is arranged at the input end of the lead sub-assembly.

[0007] Preferably, a first flat washer is sleeved on the bottom of the wire-outlet nail, an insulating pad is sleeved on the bottom of the wire-outlet nail and on the top of the first flat washer, and the insulating pad is arranged on the inner wall of the top end of the first flat washer.

[0008] Preferably, a rubber sleeve is provided in the middle of the wire outlet nail and on the top of the insulating pad, and the rubber sleeve is inserted and connected inside the through hole.

[0009] Preferably, an insulating seat is provided in the middle of the wire-out nail and on the top of the rubber sleeve, and the insulating seat is inserted and connected to the inside of the through hole.

[0010] Preferably, a second flat washer is provided at the bottom of the connecting piece, the second flat washer is sleeved on the top of the wire outlet nail, a connecting groove is opened at the top of the insulating seat, and the second flat washer is inserted and connected inside the connecting groove.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model adopts the design of the boss hole, the rivet boss and the rivet pressing groove, and the rivet boss and the magnetic pole are made into an integral part. When the position of the magnetic pole needs to be fixed, the cylindrical rivet boss on the magnetic pole is passed through the boss hole on the shell, and then the cylindrical rivet boss is riveted into a shape compatible with the boss hole by riveting. The position of the magnetic pole is fixed by the rivet boss and the boss hole, avoiding the risk of starter failure due to loosening and falling of the magnetic pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front sectional structural schematic diagram of the utility model.

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A.

[0015] Figure 3 It is a schematic diagram of the front cross-sectional structure of the magnetic pole of the utility model.

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the magnetic pole of the utility model from top view.

[0017] In the figure: 1, housing; 2, lead sub-assembly; 3, magnetic pole; 4, boss hole; 5, screw riveting boss; 501, rivet pressing groove; 6, through hole; 7, annular ring; 8, lead pin; 9, connecting piece; 10, first flat washer; 11, insulating pad; 12, rubber sleeve; 13, insulating seat; 14, second flat washer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-4A high-reliability, high-sealing stator assembly shown in the figure comprises a shell 1 and a lead sub-assembly 2 arranged on the top of the shell 1, a plurality of magnetic poles 3 are symmetrically arranged in the center of the shell 1, a riveted boss 5 is fixedly connected to the side of the magnetic pole 3 close to the shell 1, a rivet groove 501 is provided at one end of the riveted boss 5, a boss hole 4 is symmetrically provided in the center of the middle part of the shell 1, the riveted boss 5 is inserted and connected inside the boss hole 4, a through hole 6 is provided on the top of the shell 1, a connecting component for connecting the magnetic pole 3 and the lead sub-assembly 2 is inserted and connected inside the through hole 6, and an annular ring 7 is sleeved on one side of the shell 1.

[0020] It should be noted that the set magnetic pole 3 refers to the part that generates a magnetic field on the rotor, which is usually composed of a permanent magnet or an electromagnetic coil; the rivet boss 5 and the magnetic pole 3 are made in one piece. When the position of the magnetic pole 3 needs to be fixed, the cylindrical rivet boss 5 on the magnetic pole 3 is passed through the boss hole 4 on the outer shell 1, and then the cylindrical rivet boss 5 is riveted into a shape compatible with the boss hole 4 by riveting. The position of the magnetic pole 3 is fixed by the rivet boss 5 and the boss hole 4 to avoid the risk of starter failure due to loosening and falling of the magnetic pole 3; an annular groove is opened on one side of the outer shell 1, and the set annular ring 7 is inserted and connected in the annular groove. After the U-shaped groove is cancelled in the stator assembly, the stop is a full circle, and the O-ring can seal better. After the magnetic pole 3 is changed to the boss rivet process, it can be completely fitted with the edge of the stator magnetic pole hole, which solves the risk of water leakage. Combined with the above changes, the sealing performance of the stator assembly is improved.

[0021] Specifically, the connection component includes a wire-outlet nail 8 arranged at the output end of the magnetic pole 3 , the cross section of the wire-outlet nail 8 is arranged in an I-shape, a connecting piece 9 is sleeved on the top of the wire-outlet nail 8 , and the connecting piece 9 is arranged at the input end of the lead sub-assembly 2 .

[0022] It should be noted that the wire-out nail 8 and the connecting piece 9 are used to connect the output end of the magnetic pole 3 and the input end of the lead sub-assembly 2 .

[0023] Specifically, a first flat washer 10 is sleeved on the bottom of the wire-outlet nail 8, an insulating washer 11 is sleeved on the bottom of the wire-outlet nail 8 and on the top of the first flat washer 10, and the insulating washer 11 is arranged on the inner wall of the top of the first flat washer 10, a rubber sleeve 12 is sleeved on the middle of the wire-outlet nail 8 and on the top of the insulating washer 11, and the rubber sleeve 12 is inserted and connected to the inside of the through hole 6, an insulating seat 13 is sleeved on the middle of the wire-outlet nail 8 and on the top of the rubber sleeve 12, and the insulating seat 13 is inserted and connected to the inside of the through hole 6, a second flat washer 14 is arranged on the bottom of the connecting piece 9, and the second flat washer 14 is sleeved on the top of the wire-outlet nail 8, a connecting groove is opened on the top of the insulating seat 13, and the second flat washer 14 is inserted and connected to the inside of the connecting groove.

[0024] It should be noted that the first flat washer 10 and the second flat washer 14 are circular metal sheets sleeved on the wire-out nail 8 for dispersing pressure, increasing the contact area and protecting the connection surface. The wire-out nail 8 passes through the hole on the flat washer and is located between the wire-out nail 8 and the connection surface to ensure that the connection is stable, firm and reliable; the insulating pad 11 is a gasket used to provide insulation protection in electrical equipment or connections. It is made of insulating material. The main function of the insulating pad 11 is to prevent accidental short circuits between current connection points or equipment. Thereby protecting the safety of the equipment; the function of the insulating seat 13 is consistent with that of the insulating pad 11; the rubber sleeve 12 is made of rubber material, and the rubber material has the characteristic of being deformable. When in use, the rubber sleeve 12 is sleeved on the middle part of the wire-out nail 8, and the rubber sleeve 12 and the wire-out nail 8 are inserted into the inside of the through hole 6. The rubber sleeve 12 is squeezed by the insulating seat 13 and the insulating pad 11, so that the rubber sleeve 12 is deformed, and the rubber sleeve 12 is deformed to fill and seal the gap between the through hole 6, the wire-out nail 8, the insulating seat 13 and the insulating pad 11.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stator assembly with high reliability and high sealing performance, comprising a housing (1) and a lead sub-assembly (2) arranged on the top of the housing (1), wherein a plurality of magnetic poles (3) are symmetrically arranged inside the housing (1), characterized in that: A riveting boss (5) is fixedly connected to one side of the magnetic pole (3) close to the housing (1), a riveting groove (501) is provided at one end of the riveting boss (5), a boss hole (4) is symmetrically provided at the center of the housing (1), the riveting boss (5) is inserted and connected inside the boss hole (4), a through hole (6) is provided at the top of the housing (1), a connecting component for connecting the magnetic pole (3) and the lead sub-assembly (2) is inserted and connected inside the through hole (6), and an annular ring (7) is sleeved on one side of the housing (1).

2. A stator assembly with high reliability and high sealing performance according to claim 1, characterized in that: The connection assembly comprises a wire-out pin (8) arranged at the output end of the magnetic pole (3), the cross section of the wire-out pin (8) being arranged in an I-shape, a connecting piece (9) being sleeved on the top of the wire-out pin (8), and the connecting piece (9) being arranged at the input end of the lead sub-assembly (2).

3. A stator assembly with high reliability and high sealing performance according to claim 2, characterized in that: A first flat washer (10) is sleeved on the bottom of the wire-outlet nail (8), an insulating washer (11) is sleeved on the bottom of the wire-outlet nail (8) and located on the top of the first flat washer (10), and the insulating washer (11) is arranged on the inner wall of the top end of the first flat washer (10).

4. A stator assembly with high reliability and high sealing performance according to claim 3, characterized in that: A rubber sleeve (12) is sleeved in the middle of the wire outlet nail (8) and located on the top of the insulating pad (11), and the rubber sleeve (12) is inserted and connected inside the through hole (6).

5. A stator assembly with high reliability and high sealing performance according to claim 4, characterized in that: An insulating seat (13) is sleeved in the middle of the wire outlet nail (8) and located on the top of the rubber sleeve (12), and the insulating seat (13) is inserted and connected inside the through hole (6).

6. A stator assembly with high reliability and high sealing performance according to claim 5, characterized in that: A second flat washer (14) is provided at the bottom of the connecting piece (9), and the second flat washer (14) is sleeved on the top of the outlet nail (8). A connecting groove is provided at the top of the insulating seat (13), and the second flat washer (14) is inserted and connected inside the connecting groove.

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