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Vacuum cleaner

a vacuum cleaner and vacuum chamber technology, applied in the field of vacuum cleaners, can solve problems such as reducing the size, and achieve the effects of simple housing structure, low heat sink size, and simple mounting of the housing to accommodate such connections

Inactive Publication Date: 2019-04-18
DYSON TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a vacuum cleaner with a printed circuit board (PCB) that is protected from damage by a housing. The housing also helps to keep the PCB cool by using air from a separate flow path. The vacuum cleaner also has two air inlets, one for dirty air and one for untreated air. The PCB is located in the air flow path between the two inlets. The technical effect is that the vacuum cleaner has a longer lifespan and better performance because it has a protected and cooling PCB.

Problems solved by technology

There is a desire for PCBs to be as small as possible, yet reducing the size of a PCB may have associated disadvantages, such as, for example, a temperature increase during operation of the PCB.

Method used

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Embodiment Construction

[0027]A vacuum cleaner according to a first aspect of the present invention, generally designated 10, is shown in FIG. 1.

[0028]The vacuum cleaner 10 comprises a main body 12, a separating apparatus 14, a flexible hose 16, a wand assembly 18, and a cleaner head 20. The main body 12 is shown in isolation in FIGS. 2 to 4.

[0029]Mounted within the main body 12 are a motor-driven fan unit 114 for generating airflow through the separating apparatus 14 in use, a cable rewind unit (not shown) for retracting and storing an electrical cable within the main body 12, and appropriate control electronics 118 for controlling the cylinder vacuum cleaner 10.

[0030]The motor-driven fan unit 114 and cable rewind unit are conventional, and will not be described here in any detail.

[0031]The motor-driven fan unit 114 is housed in a motor bucket 115. The motor bucket 115 is connected to the main body 12 so that the motor-driven fan unit 114 does not rotate as the cylinder vacuum cleaner 10 is manoeuvred ove...

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Abstract

A vacuum cleaner has a main body, a motor-driven fan unit, a printed circuit board for controlling the motor-driven fan unit and a housing encasing a portion of the printed circuit board. A heat sink of the printed circuit board extends through the housing from an interior of the housing to an exterior of the housing. The printed circuit board is disposed within the main body such that the heat sink is located in an air-flow path through the main body.

Description

REFERENCE TO RELATED APPLICATION[0001]This application claims the priority of United Kingdom Application No. 1716979.8, filed Oct. 16, 2017, the entire contents of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to a vacuum cleaner, and in particular to a vacuum cleaner having a printed circuit board.BACKGROUND OF THE INVENTION[0003]Printed circuit boards, commonly known as PCBs, are widely used for electronic control in vacuum cleaners. There is a desire for PCBs to be as small as possible, yet reducing the size of a PCB may have associated disadvantages, such as, for example, a temperature increase during operation of the PCB.SUMMARY OF THE INVENTION[0004]According to a first aspect of the present invention there is provided a vacuum cleaner comprising a main body, a motor-driven fan unit, a printed circuit board for controlling the motor-driven fan unit, and a housing encasing a portion of the printed circuit board, wherein a h...

Claims

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Application Information

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IPC IPC(8): A47L9/28A47L9/10A47L5/22
CPCA47L9/2842A47L9/102A47L9/2889A47L5/22A47L9/00A47L9/28H05K7/20H05K7/20163H05K7/2089
Inventor HUGHES, ALEXANDER EDWARDSTEPHENSON, IAN JEFFREYREES-JONES, GLYN GEOFFREYPOOLE, DAVID MICHAEL CHARLES
Owner DYSON TECH LTD