Integrated dust collection fan

Abstract

The utility model discloses an integrated dust collection fan which comprises a front support and a rear cover, the rear cover is installed at the rear end of the front support, the rear cover and the interior of the front support form a containing cavity, and a stator iron core, magnetic steel and a motor shaft are installed in the containing cavity. A movable impeller is arranged at the front end of the front support and installed on a motor shaft, and a fan cover is arranged at the front end of the movable impeller. A heat dissipation plate is arranged at the rear end of the rear cover and provided with a driving plate. The heat dissipation problem of the motor and the drive board can be solved. The movable impeller rotates to drive external air to be sucked into the dust collection fan along the air inlet of the fan cover, air flow passes through the first air duct to dissipate heat of the wound stator core, then the air flow passes through the second air duct to take away heat conducted to the heat dissipation plate when the driving plate works, and it is ensured that the driving plate can normally operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, in particular to an integrated dust suction fan compatible with two voltage drives of 110V and 220V. Background Art

[0002] The invention patent with patent number 202220971281.5 discloses a mounting shell, a dust suction fan, and a dust suction device. The mounting shell includes a first barrel section and a second barrel section. The first barrel section is used to accommodate the end of the stator assembly; the second barrel section is coaxially arranged with the first barrel section, the inner diameter of the second barrel section is larger than the inner diameter of the first barrel section, and the space between the inner wall surface of the second barrel section and the inner wall surface of the first barrel section is used to accommodate preset components. The mounting shell of this structure allows the stator assembly, the drive plate capacitor and other structures to be at least partially installed in the space between the inner wall surface of the second barrel section and the inner wall surface of the first barrel section, reducing the possibility of assembly interference during the assembly process and improving assembly efficiency; at the same time, the axial length of the shell can be reduced by installing part of the structure in the space between the inner wall surface of the second barrel section and the inner wall surface of the first barrel section.

[0003] There are certain defects in the content disclosed in this patent. The voltage drive of the dust suction fan on the market is generally 220V. When the voltage drive of the dust suction fan containing this structure is switched to 110V, the overall temperature of the dust suction fan increases, the heat dissipation effect of the drive board is poor, and the drive board starts the over-temperature protection, affecting the work efficiency. Summary of the invention

[0004] In view of the above technical problems, the utility model provides an integrated dust suction fan to solve the heat dissipation problem of the motor and the drive plate and improve the working energy efficiency of the motor.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: an integrated dust suction fan, including a front bracket and a rear cover, the rear cover is installed at the rear end of the front bracket, the rear cover and the interior of the front bracket form an accommodating cavity, the stator core, magnetic steel, and motor shaft are installed in the accommodating cavity; a moving impeller is arranged at the front end of the front bracket, the moving impeller is installed on the motor shaft, and a wind cover is arranged at the front end of the moving impeller; a heat sink is arranged at the rear end of the rear cover, and a driving plate is arranged on the heat sink.

[0006] In order to optimize the above technical solution, the utility model also includes the following improved technical solution.

[0007] A first air duct is arranged in the above-mentioned accommodating cavity for air flow to pass through; a wind hood air inlet is arranged at the front end of the wind hood; a support column is installed at the rear end of the rear cover, and a heat sink is installed at the rear end of the support column. The heat sink and the rear end of the rear cover form a second air duct for air flow to pass through.

[0008] A frame is set in the above-mentioned accommodating cavity, and the stator core is installed on the frame. After the winding is completed, it is installed in the rear cover; the magnet is installed in the rotor magnet slot according to the magnetic pole direction and installed on the motor shaft, and bearings are installed at the front and rear ends of the motor shaft.

[0009] A guide wheel is arranged at the front end of the front bracket, which is locked on the front bracket by screws, a T-shaped pad column is arranged at the front end of the guide wheel, a moving impeller is installed at the front end of the T-shaped pad column, and a nut is arranged at the front end of the moving impeller.

[0010] Compared with the prior art, the integrated dust suction fan of the utility model can solve the heat dissipation problem of the motor and the drive board. The impeller rotates to drive the outside air to be sucked into the dust suction fan through the air inlet of the wind cover. The airflow passes through the first air duct to dissipate the heat of the stator core of the winding. Then the airflow passes through the second air duct to take away the heat conducted to the heat sink when the drive board is working, ensuring the normal operation of the drive board. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional schematic diagram of this embodiment.

[0012] Figure 2 It is a side view of this embodiment. DETAILED DESCRIPTION

[0013] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

[0014] Figure 1 to Figure 2 Shown is a schematic structural diagram of the utility model.

[0015] The figures are marked as follows: front bracket 1, rear cover 2, accommodating chamber 3, first air duct 4, frame 5, stator core 6, motor shaft 7, magnetic steel 8, bearing 9, air guide wheel 10, T-shaped cushion column 11, gasket 12, nut 13, impeller 14, air hood 15, air hood air inlet 15a, support column 16, heat sink 17, second air duct 18, drive plate 19.

[0016] The integrated dust suction fan of the utility model comprises a front bracket 1, a rear cover 2, a moving impeller 14, a motor shaft 7, a stator core 6, a magnetic steel 8, and a driving plate 19. When the driving input is 110V or 220V, the driving plate 19 provides power for the dust suction fan, and the moving impeller 14 of the dust suction fan draws the outside air into the dust suction fan, and the airflow dissipates the heat for the stator core 6 and the driving plate 19 wound with the coil, so as to ensure the normal operation of the dust suction fan.

[0017] like Figure 1As shown, the rear cover 2 is installed at the rear end of the front bracket 1, and the interior of the front bracket 1 and the rear cover 2 constitute a receiving chamber 3, and a first air duct 4 for air flow is arranged in the receiving chamber 3. The frame 5 is installed in the receiving chamber 3, and the stator core 6 is installed on the frame 5. The stator core 6 with the coil is fixed in the rear cover 2. The motor shaft 7 is rotatably installed in the receiving chamber 3, and the magnet 8 is sequentially installed in the rotor magnet 8 slot according to the direction of the magnetic pole, and is installed on the motor shaft 7, and bearings 9 are installed at the front and rear ends of the motor shaft 7.

[0018] The front side of the front bracket 1 is provided with an air guide wheel 10, which is screwed on the front bracket 1 and then placed in a T-shaped pad column 11, a moving impeller 14 is installed at the front end of the T-shaped pad column 11, a gasket 12 is installed at the front end of the moving impeller 14, and a nut 13 is installed at the front end of the gasket 12. A wind shield 15 is provided at the front end of the moving impeller 14, the wind shield 15 is installed at the front end of the front bracket 1, and a wind shield air inlet 15a is provided at the front end of the wind shield 15.

[0019] like Figure 2 As shown, the rear cover 2 is not only the rear cover of the motor, but also the carrier of the drive plate 19, saving the cost of parts such as the drive box. The rear end of the rear cover 2 is installed with a support column 16, and the support column 16 is fixed with screws to the drive plate 19 and the dust suction fan as a whole. The rear end of the support column 16 is installed with a heat sink 17, and a second air duct 18 for air flow is provided between the heat sink 17 and the rear cover 2. The drive plate 19 is installed at the rear end of the heat sink 17, and the drive plate 19 is installed at the rear end of the dust suction fan, realizing the integration of the motor drive and improving the assembly efficiency.

[0020] The impeller 14 rotates, sucking the outside air into the dust suction fan along the air inlet 15a of the wind cover, and the airflow entering the impeller 14 passes through the first air duct 4 in the accommodating chamber 3, and the airflow dissipates heat to the stator core 6 wound with the coil. After passing through the first air duct 4, the airflow continues to pass through the second air duct 18 to take away the heat conducted to the heat sink 17 when the drive board 19 is working, ensuring that the drive board 19 can operate normally.

[0021] The driver inputs 110V or 220V AC power, which is rectified into DC power by the driver board 19 to power the dust suction fan and provide operating power. At the same time, the driver automatically identifies the input voltage to ensure that the dust suction fan can achieve the same performance as the input 220V when the input voltage is 110V, meeting the needs of customers under the 110V voltage.

[0022] The best embodiment of the present invention has been described, and various changes or modifications made by ordinary technicians in this field will not depart from the scope of the present invention.

Claims

1. An integrated dust suction fan, comprising a front bracket (1) and a rear cover (2), characterized in that: The rear cover (2) is mounted at the rear end of the front bracket (1); the rear cover (2) and the interior of the front bracket (1) form a containing chamber (3); the stator core (6), the magnetic steel (8), and the motor shaft (7) are mounted in the containing chamber (3); a moving impeller (14) is arranged at the front end of the front bracket (1); the moving impeller (14) is mounted on the motor shaft (7); a wind shield (15) is arranged at the front end of the moving impeller (14); a heat sink (17) is arranged at the rear end of the rear cover (2); and a driving plate (19) is arranged on the heat sink (17).

2. The integrated dust suction fan according to claim 1 is characterized in that: A first air duct (4) for air flow is arranged in the accommodating cavity (3); a front end of the air hood (15) is provided with an air hood air inlet (15a); a support column (16) is installed at the rear end of the rear cover (2); the heat sink (17) is installed at the rear end of the support column (16); the heat sink (17) and the rear end of the rear cover (2) form a second air duct (18) for air flow.

3. The integrated dust suction fan according to claim 2 is characterized in that: A frame (5) is arranged in the accommodating cavity (3), and the stator core (6) is mounted on the frame (5). After winding, the stator core (6) is mounted in the rear cover (2). The magnetic steel (8) is installed in the slot of the rotor magnetic steel (8) according to the direction of the magnetic poles and is mounted on the motor shaft (7). Bearings (9) are installed at the front and rear ends of the motor shaft (7).

4. The integrated dust suction fan according to claim 3 is characterized in that: An air guide wheel (10) is arranged at the front end of the front bracket (1), the air guide wheel (10) is locked on the front bracket (1) by means of screws, a T-shaped pad column (11) is arranged at the front end of the air guide wheel (10), the impeller (14) is mounted at the front end of the T-shaped pad column (11), and a nut (13) is arranged at the front end of the impeller (14).

Images