Insulated stator structure of ducted motor

Abstract

The utility model relates to the technical field of motors, in particular to an insulated stator structure of a ducted motor, which comprises a shell, an iron core support arranged on the shell, an annular iron core sleeved on the outer side of the iron core support, a stator winding arranged on the inner side of the iron core support and a driver arranged on the shell. The shell is provided with a fixing sleeve used for containing the iron core support, and one end of the iron core support protrudes out of the fixing sleeve so that the end face of the iron core support can abut against the open end face of the fixing sleeve in a stopping mode. The utility model has the advantages of simple and convenient installation, good insulativity, prolonged service life and improved working reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a ducted motor insulation type stator structure. BACKGROUND

[0002] With the continuous progress of science and technology and the continuous improvement of people's life quality, the ducted motor is widely applied to the products such as hair dryer, handheld fan, micro dust collector etc., the ducted motor is a kind of direct-current brushless motor, compared with traditional brush motor, it has higher efficiency and longer service life, the rotor of the ducted motor has multiple permanent magnets, and the stator has multiple coils, the current of the coil is controlled by electric control, thereby the rotating speed and rotating direction of the ducted motor are controlled.The existing iron core is in alternating magnetic field during operation, which will cause different degrees of wear, copper loss will also be generated after the winding is energized, and other stray losses will also be generated, etc., which will cause the operating temperature of the motor to rise, therefore, the motor will appear high temperature during normal operation, causing the insulation material of the motor to melt, reducing the insulation performance, thereby easily causing short circuit and burning the motor. SUMMARY

[0003] The utility model discloses a kind of ducted motor insulation type stator structures, simple and convenient to install, with good insulation, prolong service life, improve work reliability.

[0004] To achieve the above object, a kind of ducted motor insulation type stator structure of the utility model, including shell, the iron core support of being arranged at shell, the annular iron core of being set at the outer side of iron core support, the stator winding of being arranged at the inner side of iron core support and the driver of being arranged at shell, the stator winding is electrically connected with driver, the shell is provided with the fixed sleeve for accommodating iron core support, one end of the iron core support protrudes out of fixed sleeve, so that the end surface of iron core support is blocked and is in contact with the open end surface of fixed sleeve.

[0005] Preferably, the iron core support includes a hollow cylinder, a ring groove arranged on the outer side of the hollow cylinder, a boss arranged at one end of the hollow cylinder, and a limiting ring arranged at the other end of the hollow cylinder. The ring groove is arranged around the circumference of the hollow cylinder. The ring groove is arranged between the boss and the limiting ring. The annular iron core is accommodated in the ring groove.

[0006] Preferably, the fixed sleeve is provided with a contact plate. The inner wall of the contact plate is in contact with the outer wall of the annular iron core.

[0007] Preferably, one end of the shell close to the driver is provided with a fixed jaw. The inner wall of the fixed jaw is provided with a bearing plate. The bearing plate is in contact with the bottom of the driver, so that the fixed jaw is in contact with the top of the driver.

[0008] Preferably, the fixing sleeve is provided with a containing cavity near one end of the fixing claw, and the containing cavity is provided with a bearing.

[0009] Preferably, a reinforcing rib is arranged between the containing cavity and the fixing claw, and the reinforcing rib is connected with the bearing plate.

[0010] The utility model discloses the beneficial effects of: simple and convenient installation, good insulating property, prolonging the service life, improving the work reliability. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural schematic diagram of the utility model.

[0012] Figure 2 It is the internal structure schematic diagram of the utility model.

[0013] Figure 3 It is the exploded view schematic diagram of the utility model.

[0014] Figure 4 It is the structure schematic diagram of one end of the shell of the utility model.

[0015] Figure 5 It is the structure schematic diagram of the other end of the shell of the utility model.

[0016] Figure 6 It is the structure schematic diagram of the iron core support of the utility model.

[0017] The reference signs include:

[0018] 1 - shell 11 - fixing sleeve 12 - abutting plate

[0019] 13 - fixing claw 14 - bearing plate 15 - containing cavity

[0020] 16 - bearing 17 - reinforcing rib

[0021] 2 - iron core support 21 - hollow cylinder 22 - annular groove

[0022] 23 - boss 24 - limit ring

[0023] 3 - annular iron core 4 - stator winding 5 - driver. DETAILED DESCRIPTION

[0024] The utility model will be described in detail below in connection with the drawings.

[0025] As Figures 1 to 6As shown, the utility model discloses a duct motor insulation type stator structure, including casing 1, the iron core support 2 of setting in casing 1, the annular iron core 3 of setting in the outside of iron core support 2, the stator winding 4 of setting in the inside of iron core support 2 and the driver 5 of setting in casing 1, the stator winding 4 is electrically connected with driver 5, the casing 1 is provided with the fixed sleeve 11 for accommodating iron core support 2, one end of iron core support 2 protrudes outside fixed sleeve 11, to make the end face of iron core support 2 and the open end face of fixed sleeve 11 stop and resist.

[0026] Because the stator winding 4 is electrically connected with the driver 5, when the stator winding 4 is energized, a rotating magnetic field is generated, which forms electromagnetic interaction between the magnet outside the main shaft of the rotor structure, generates induced electromotive force and current, thereby forming electromagnetic torque on the main shaft, so that the main shaft is stressed and drives the blade to rotate. The annular iron core 3 is sleeved on the outside of the iron core support 2, the stator winding 4 is installed on the inside of the iron core support 2, and the casing 1 is sleeved on the outside of the bearing 16 to fix the position of the outer ring of the bearing 16, which helps the main shaft to rotate more smoothly and stably, reduces friction loss and prolongs service life. The annular iron core 3 is sleeved on the outside of the iron core support 2, and the iron core support 2 is placed in the casing 1. The annular iron core 3 effectively transmits and concentrates the rotating magnetic field, improves the magnetic field strength, better drives the blade to rotate quickly and smoothly, and the annular iron core 3 can significantly increase the magnetic flux of the stator winding 4 through its magnetic conductivity, thereby realizing maximum conversion of electromagnetic power. As a preferred embodiment, the stator winding 4 is a three-phase hollow cup winding, the annular iron core 3 is sleeved on the outside of the iron core support 2, and the annular iron core 3 and the iron core support 2 are integrally formed by a plastic packaging process, so that the formed iron core support 2 has good insulation, easy installation and other advantages. The end face of the iron core support 2 stops and resists the open end face of the fixed sleeve 11, so that the end face of the iron core support 2 is flush with the open end face of the fixed sleeve 11, ensuring the accuracy and coaxiality of the positions of the components, achieving accurate alignment and improving assembly efficiency. The utility model has the advantages of simple and convenient installation, good insulation, long service life and improved work reliability.

[0027] The iron core support 2 of the embodiment includes a hollow cylinder 21, a ring groove 22 arranged on the outside of the hollow cylinder 21, a boss 23 arranged at one end of the hollow cylinder 21, and a limiting ring 24 arranged at the other end of the hollow cylinder 21. The ring groove 22 is arranged around the circumference of the hollow cylinder 21. The ring groove 22 is arranged between the boss 23 and the limiting ring 24. The annular iron core 3 is accommodated in the ring groove 22. Specifically, when the annular iron core 3 is accommodated in the ring groove 22, the two ends of the annular iron core 3 stop and resist between the boss 23 and the limiting ring 24, further fixing the position of the annular iron core 3 on the iron core support 2, and facilitating the insertion and installation of the stator winding 4 in the hollow cylinder 21.

[0028] The fixed sleeve 11 of the embodiment is provided with abutting plates 12, inner walls of the abutting plates 12 abutting the outer wall of the annular iron core 3. Specifically, preferably, three abutting plates 12 are provided, the three abutting plates 12 are circumferentially arranged on the inner wall of the fixed sleeve 11, and the three abutting plates 12 jointly abut the outer wall of the annular iron core 3 from different directions, thereby fixing the iron core support 2 in position in the fixed sleeve 11 and effectively avoiding the occurrence of position deviation.

[0029] The housing 1 of the embodiment is provided with a fixed jaw 13 at one end close to the driver 5, an inner wall of the fixed jaw 13 is provided with a bearing plate 14, the bearing plate 14 abuts the bottom of the driver 5, so that the fixed jaw 13 abuts and clamps the top of the driver 5. Specifically, the driver 5 is placed on the bottom of the housing 1, the bearing plate 14 abuts and supports the bottom of the driver 5, and then the fixed jaw 13 abuts and clamps the top of the driver 5, thereby stably positioning the driver 5 between the bearing plate 14 and the fixed jaw 13, and the positioning effect is good.

[0030] The fixed sleeve 11 of the embodiment is provided with a containing cavity 15 at one end close to the fixed jaw 13, the containing cavity 15 is provided with a bearing 16. Specifically, the containing cavity 15 is located at the middle position of the fixed sleeve 11, the containing cavity 15 and the fixed sleeve 11 are in communication with each other, and the bearing 16 is contained in the containing cavity 15, so that the structure is compact and reasonable in design, and the space occupied is small.

[0031] The connection between the containing cavity 15 and the fixed jaw 13 of the embodiment is provided with a reinforcing rib 17, the reinforcing rib 17 is connected with the bearing plate 14. Specifically, the connection between the containing cavity 15 and the fixed jaw 13 is provided with a reinforcing rib 17, which further consolidates the position of the containing cavity 15 in the fixed jaw 13, and the structure is stable, the reinforcing rib 17 is connected with the bearing plate 14, and the structure is compact.

[0032] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific implementation and application range can be changed, and the content of the specification should not be understood as limiting the present application.

Claims

1. An insulated stator structure for a ducted motor, characterized in that: The device includes a housing, a core support disposed on the housing, an annular core sleeved on the outside of the core support, a stator winding disposed on the inside of the core support, and a driver disposed on the housing. The stator winding is electrically connected to the driver. The housing is provided with a fixing sleeve for accommodating the core support. One end of the core support protrudes beyond the fixing sleeve so that the end face of the core support stops and abuts against the open end face of the fixing sleeve.

2. The insulated stator structure for a ducted motor according to claim 1, characterized in that: The iron core support includes a hollow cylinder, an annular groove disposed on the outside of the hollow cylinder, a boss disposed at one end of the hollow cylinder, and a limiting ring disposed at the other end of the hollow cylinder. The annular groove is arranged around the circumference of the hollow cylinder and is disposed between the boss and the limiting ring. The annular iron core is housed in the annular groove.

3. The insulated stator structure for a ducted motor according to claim 2, characterized in that: The fixed sleeve is provided with an abutment plate, and the inner wall of the abutment plate blocks the outer wall of the annular iron core.

4. The insulated stator structure for a ducted motor according to claim 1, characterized in that: A fixing claw is provided at one end of the housing near the driver. A support plate is provided on the inner wall of the fixing claw. The support plate abuts against the bottom of the driver so that the fixing claw abuts against and holds the top of the driver.

5. The insulated stator structure for a ducted motor according to claim 4, characterized in that: The fixed sleeve has a receiving cavity at one end near the fixed claw, and the receiving cavity is equipped with a bearing.

6. The insulated stator structure for a ducted motor according to claim 5, characterized in that: A reinforcing rib is provided at the connection between the accommodating cavity and the fixed claw, and the reinforcing rib is connected to the bearing plate.

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