Epoxy potting jig for motor stator

Abstract

The utility model discloses a motor stator epoxy potting jig, which comprises a motor casing, a stator and a jig, the stator is arranged in the motor casing, the bottom end of the motor casing is connected with an end cover, a groove is arranged in the end cover, the jig is embedded in the groove, an air bag is arranged on the outer surface of the jig, and the air bag is connected with the motor casing. A control valve is installed in the jig, a hose is installed on one side of the control valve, and an insertion opening is formed in one end of the hose. According to the utility model, the air bag is filled with air and tightly attached to the stator, the jig is kept stable, the potting effect is improved, after the potting is finished, the control valve is started to exhaust the air inside, so that the air bag is in a vacuum state, the air bag contracts, the jig is convenient to separate, the operation is convenient, and the potting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of stator potting jigs, in particular to an epoxy potting jig for motor stators. Background Art

[0002] Potting glue can significantly improve the insulation performance of the stator, effectively prevent short circuit and leakage between stators, and ensure the normal operation of the motor. Potting glue can enhance the fixed structural strength and rigidity of the motor, help prevent the occurrence of motor coil heating, noise, vibration and loosening problems, and ensure stable operation of the motor.

[0003] After searching, Chinese utility model patent CN209419447U is a motor stator epoxy potting jig, including an inner core jig and a stop jig, one end of the inner core jig is provided with an inner core step, the inner core step extends into the front end cover of the motor, the other end of the inner core jig extends out of the motor casing, the outer wall of the inner core jig conflicts with the stator of the motor, one end of the stop jig is provided with a stop step, the stop step extends into the motor casing, and the other end of the stop jig is located outside the casing. The utility model can make the stator of the motor be processed by epoxy potting technology, avoid pollution, and reduce the waste of epoxy.

[0004] The existing device will encounter the following problems when in use: when potting the stator, it is necessary to process the gap between the jig and the motor housing to reduce the gap and prevent the loss of epoxy resin during potting. However, the operation is more cumbersome and the state of the jig during potting cannot be continuously maintained, resulting in poor potting effect. Utility Model Content

[0005] The utility model aims to provide a motor stator epoxy potting jig to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor stator epoxy potting jig, comprising a motor housing, a stator, and a jig, wherein a stator is arranged inside the motor housing, an end cover is connected to the bottom end of the motor housing, a groove is arranged inside the end cover, a jig is embedded inside the groove, an air bag is arranged on the outer surface of the jig, a control valve is installed inside the jig, a hose is installed on one side of the control valve, a socket is installed on one end of the hose, the bottom end of the jig is inserted into the groove inside the end cover, and the port jig is inserted into the motor housing. At this time, the socket is connected to an air pump, and the control valve is opened to transport the gas to the air bag through the hose. Then the air bag is filled with gas and is tightly attached to the stator, and the jig is kept stable. Epoxy resin is poured between the motor housing and the jig for potting, which is simple to operate and improves the potting work efficiency.

[0007] In a further embodiment, a port jig is embedded in one end of the motor housing away from the end cover to limit the potting port and prevent the epoxy resin from overflowing.

[0008] In a further embodiment, the material of the airbag is set to silicone, and a connecting tube is provided on the airbag. The connecting tube is connected to the control valve, and gas is delivered to the airbag through the control valve.

[0009] In a further embodiment, the material of the jig and the port jig are both set to titanium alloy. The jig is bonded to the airbag and can withstand the temperature of epoxy resin potting, thereby improving practicality.

[0010] In a further embodiment, the motor housing and the end cover are an integrally formed structure.

[0011] In a further embodiment, the jig is located inside the stator and port jig.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the airbag is filled with gas and is tightly attached to the stator, and the tool is kept stable, thereby increasing the potting effect; after potting, the gas inside is discharged by starting the control valve, so that the airbag is in a vacuum state, and the airbag contracts to facilitate the detachment of the tool, which is easy to operate and improves the potting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the port jig of the utility model;

[0016] Figure 4 It is a schematic diagram of the airbag structure of the utility model.

[0017] In the figure: 1. Motor housing; 2. Stator; 3. Airbag; 4. End cover; 5. Control valve; 6. Hose; 7. Socket; 8. Jig; 9. Port jig; 10. Groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] See also Figure 1-4The utility model provides an embodiment: a motor stator epoxy potting jig, comprising a motor housing 1, a stator 2, and a jig 8, wherein the motor housing 1 is provided with a stator 2, the bottom end of the motor housing 1 is connected with an end cover 4, the end cover 4 is provided with a groove 10, the inside of the groove 10 is embedded with a jig 8, the bottom end of the jig 8 is inserted into the groove 10 inside the end cover 4, the jig 8 is located inside the stator 2 and the port jig 9, the outer surface of the jig 8 is provided with an air bag 3, the inside of the jig 8 is installed with a control valve 5, a hose 6 is installed on one side of the control valve 5, a socket 7 is installed on one end of the hose 6, the socket 7 is connected to the air pump, and the control valve 5 is opened to pass the gas The gas is transported to the airbag 3 through the hose 6, and then the airbag 3 is filled with gas and adheres tightly to the stator 2, and the jig 8 remains stable. A port jig 9 is embedded at the end of the motor housing 1 away from the end cover 4, and the motor housing 1 and the end cover 4 are an integrally formed structure. The material of the airbag 3 is set to silicone, and a connecting pipe is provided on the airbag 3, and the connecting pipe is connected to the control valve 5. The materials of the jig 8 and the port jig 9 are both set to titanium alloy, and the jig 8 is bonded to the airbag 3. After the potting is completed, the gas inside the airbag 3 is discharged by starting the control valve 5, so that the airbag 3 is in a vacuum state, and the airbag 3 shrinks to facilitate the detachment of the jig 8, thereby improving the potting efficiency and reducing the operating steps.

[0020] Working principle: insert the bottom end of the jig 8 into the groove 10 inside the end cover 4, insert the port jig 9 into the motor housing 1, connect the socket 7 to the air pump, open the control valve 5 to transport the gas to the airbag 3 through the hose 6, and then the airbag 3 is filled with gas and fits tightly to the stator 2, and the jig 8 is kept stable, and epoxy resin is poured between the motor housing 1 and the jig 8 for potting. After potting, the gas inside the airbag 3 is discharged by starting the control valve 5, so that the airbag 3 is in a vacuum state, and the airbag 3 shrinks to facilitate the detachment of the jig 8.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A motor stator epoxy potting jig, comprising a motor housing (1), a stator (2), and a jig (8), characterized in that: A stator (2) is arranged inside the motor housing (1), an end cover (4) is connected to the bottom end of the motor housing (1), a groove (10) is arranged inside the end cover (4), a jig (8) is embedded inside the groove (10), an air bag (3) is arranged on the outer surface of the jig (8), a control valve (5) is installed inside the jig (8), a hose (6) is installed on one side of the control valve (5), and a socket (7) is installed at one end of the hose (6).

2. The motor stator epoxy potting jig according to claim 1, characterized in that: A port fixture (9) is embedded in one end of the motor housing (1) away from the end cover (4).

3. The motor stator epoxy potting jig according to claim 1, characterized in that: The material of the airbag (3) is set to be silica gel. The airbag (3) is provided with a connecting pipe, and the connecting pipe is connected to the control valve (5).

4. The motor stator epoxy potting jig according to claim 1, characterized in that: The materials of the jig (8) and the port jig (9) are both set to be titanium alloy, and the jig (8) is bonded to the airbag (3).

5. The motor stator epoxy potting jig according to claim 1, characterized in that: The motor housing (1) and the end cover (4) are an integrally formed structure.

6. The motor stator epoxy potting jig according to claim 1, characterized in that: The jig (8) is located inside the stator (2) and the port jig (9).

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