How Suction Motor works in vacuum cleaner

Working of Suction Motor in vacuum cleaners.

The Suction Motor is one of the important part of vacuum cleaner. It is this motor which takes electrical power from the power source & converts it the form suction with air flow.

        Some technical terms are associated with suction motor as include universal, series & brush type. All the suction motors are universal motors. Science they can operate with either AC or DC (power sources). They are normally designed for household voltage.

              The motor consists of rotating armature & a stationary field. The armature is made up of a laminated iron core which is wound with copper-enameled-insulated wire. The windings are attached to a copper commutator has individual bars of copper which are positioned in the shape of a drum. The motor brunches are carbon rods, which are held against the commutator in to the windings on armature. The field consists of a laminated iron frame on which one or two coils of Cu wire are wound. It is shaped so that so that it wraps around the core of the armature on two opposite sides. As the same current posses through field & armature coils called a series motor.

   As current passes through coils in field & armature, magnetic fields are created by each of them.

It is attractive or repulsive of these fields So rotates armature.

The fan is considers integral part of suction motor. The fan housing & motor are assembled as a single unit. As a series motor it creates high level of torque for its size (used in electric shavers, drills, electric power tools.) suction depends on load. One or more fans are attached to the motor shaft & are rotated to the motor shaft & are rotated at a very high speed. The air entering the fan near hub is forced to spin with fan (The load to motor is the force needed to overcome the inertia of air).

       When you reduce air flow through motor by increasing the resistance to the air flow, so reduces load & so increases speed & amperage through it decreases. The effect of above is to increase suction created by motor.

  So when you restrict air flow completely will create maximum possible suction. This happens when a sealed suction gauge is used. The suction motor on most of vacuum cleaners draws 7 to 12 A current.

  As current increases through motor magnetic fields created by both armature & field increases proportionally.

For lighter load

Torque is directly proportional to square of current.

If current doubled then,

So torque increases 4 times.

For heavy loads it goes in saturation. Suction motor are designed to operate on high speed at moderate or heavy loads.

Although we read some feature articles about the Roomba robotic vacuum cleaner, user reviews are the best place to get a feel for its real-life performance. We found more than 100 user reviews for the Discovery 510 and 530. A perusal of the customer reviews at Amazon.com, Viewpoints.com and Epinions.com shows that the Roomba is a love-it-or-hate-it item, with owners either thrilled or very disappointed with it.

Reviewers of the iRobot Roomba Discovery, which is a disc-shaped vacuum that can reach under furniture, are mainly happy and impressed by its novelty. They report that it's quite effective, even in rooms where pet hair is a problem. Many owners laud it for being a timesaver but also point out that it does not fully replace a full, standard vacuum cleaner. You can spend a lot less on the Eureka Boss SmartVac 4870MZ (*est. $150), and you'll get a more powerful (though not robotic) vacuum. For more complete vacuuming automation, take a look at the similar Roomba Discovery 530 (*est. $300). The 510 does not return to its charging base when finished vacuuming; the 530 does.

This time the Balance Board has been hacked with a robot-vacuum cleaner to perform daily household chores by merely surfing on Wii Balance Board. Ron Tajima, a Japanese national, has exploited the Wii Balance Board's Bluetooth capabilities with Roomba, a robot-like vacuum cleaner, which performs cleaning tasks.

Tajima installed a Bluetooth-Serial adapter on the Roomba vacuum cleaner and then controlled the automatic Roomba with the Wii Balance Board. Tajima controls Roomba by front and back motion on the Balance board for cleaning the room.

Wii Fit's Balance Board indeed is turning out to be a DIY solution-maker. While the Wii Balance Board's DIY solutions sure make life easier for some owners, one wonders how this fits in with one their USPs - Wii Fitness.