Permanent magnet brushless direct current frequency conversion axial flow fan

A permanent magnet brushless DC, axial flow fan technology, applied in magnetic circuits, electromechanical devices, mechanical equipment, etc., can solve problems such as damage and limit the scope of use, and achieve the effect of simple use, solving hardware costs, and system saving

CN106224268AActive Publication Date: 2016-12-14广州冠协风机制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-12-14

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Abstract

The invention provides a permanent magnet brushless direct current frequency conversion axial flow fan. The permanent magnet brushless direct current frequency conversion axial flow fan comprises a fan frame, an impeller, a cover disk, a coil, a rotor iron core body, permanent magnets, a stator iron core body, a PCB and a heat dissipation frame. The permanent magnet brushless direct current frequency conversion axial flow fan is characterized in that the heat dissipation frame is made of an aluminum alloy material; the PCB is a round printed board of which the center is provided with a hole; a dual-core single chip microcomputer, a front driving chip and a VMOS power pipe are welded to the PCB, and the heat dissipation surface of the PCB is fixed to a hexagonal frame at the center of the heat dissipation frame through screws in a horizontal installation mode; the cover disk is a hollow cylinder of which the middle is provided with an isolation plate; the center of the isolation plate is provided with a bearing B installation step; and the isolation plate divides the cover disk into two parts. The fan and motor integrated permanent magnet brushless direct current frequency conversion axial flow fan scheme provided by the invention represents the development direction of permanent magnet brushless direct current frequency conversion axial flow fans and is quite broad in application prospect.
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Description

technical field

[0001] The invention relates to a permanent magnet brushless DC frequency conversion axial flow fan, which is mainly used for ventilation, cooling, drying and dehumidification of fixed or mobile equipment. Background technique

[0002] A fan in which the gas flows parallel to the axis of rotation of the fan is called an axial fan. Commonly used electric fans and air conditioner fans are fans that operate in an axial flow mode. For example, electric fans used for cooling are all electrical equipment placed in a fixed position to make air flow. The room temperature wind blown out by it can accelerate the evaporation of human sweat and reduce the body surface temperature, so it is widely used. Generally speaking, since the axial flow fan does not change the flow direction of the air medium, it is usually used in occasions with high gas flow requirements and low pressure requirements, that is, the so-called occasions with large air volume and low resistance: n...

Examples

Embodiment Construction

[0054] The present invention as Figure 1 to Figure 10 shown.

[0055] The specific embodiment of the present invention is illustrated below in conjunction with accompanying drawing:

[0056] Permanent magnet brushless DC variable frequency axial flow fan, including fan frame (1), impeller (2), cover plate (4), wire package (5), rotor core body (6), permanent magnet (7), stator core body (8), PCB circuit board (9), heat dissipation frame (10), control cable (25), dual-core single-chip microcomputer (11), pre-driver chip (16), VMOS power tube (18), the main points of which are:

[0057] The heat dissipation frame (10) is made of aluminum alloy and has a cylindrical shape. The cylinder is engraved with external threads (17). The central position of the heat dissipation frame (10) is hollowed out into a hexagonal shape. There are four hanging ears (24), each with a hole in the center of the hanging ear (24), the screws can pass through the fan frame fixing holes (21) on the fan...