Monday 29 June 2015

How the heck DOES a blender work?

Since this is the first post in this blog, let me first get the format straight - each post will be about the details of a particular household product or electronic appliances. It will start with a small step by step instruction on how to open the product, discuss in detail the different parts of it, followed by a list of various problems that could occur with it and end with a theoretical approach to explaining the working of the model.

So today we start with a blender.

Procedure


1.Twist off the jar and remove it

2.Turn the blender upside down and take out the rubber washers to reveal the hollow tubes at the end of which are screws to be removed.

3.Lift off the cover

Different parts of the blender


A blender usually consists of a plastic housing, motor, blades, and food container.

1.Plastic housing - This is the part which contains the motor, has all the buttons on it to change the speed (or torque) of the motor and connects to the food container.

Never use a newspaper to drive
your mom crazy.

2.Motor - This is namely the main - and the only moving part - in the whole blender as it is the one that rotates to make the attached blades move.

Nice to see the practical use of space

3.Blades - These are attached to the food container and come in many different styles, each with its own utility.

Image result for blades blender
Buy a kit of these for your daily ninja practice!

4.Food container - Nothing special about this one. It simply contains the food to be processed and the blades to do so.

Problems that could come up


1.Burning wires - This is a fairly common problem that occurs as to much current is able to melt off the wires, thus causing the wrong wires previously just next to each other to become connected and create a short circuit. If the problem occurred recently there should be a burning rubber smell to detect.

2.Motor getting stuck - This problem occurs when the motor gets, well, stuck. Usually the grease applied during the manufacturing process wears off or the connection with the blades is messed up. Simply add some oil and ensure the motor is freely moving.

3.Overload switch - This is the easiest to solve. If you have a fairly new blender it will most probably have something like a red switch at the bottom - just flick it on again. It gets switched off due to overloading.

You mean to tell me the red button
DOESN'T destroy the world?
Goddammit.


Theory


So here is how the thing actually works.

The wires are connected to a 220 V supply and two carbon holders, in between of which is the freely moving motor enclosed in a stationary part, or a stator. These carbon holders each have a coil of copper. As the power is turned on, these copper coils together create a magnetic field called an electrically induced magnetic field or E.M.F. which ,due to the alternating current, well, alternates thus making the motor alternate its position according to the field, or, rotate. The speed with which the motor moves is specified by the buttons on front which control the current intake.
Diagram of working of a blender

So there you have it, how the heck a blender works. Now let me reassemble this before my mom comes in.

Message from the future Siddhant - Hi guys, how are you? I have published another article containing more in depth analysis of the motor. If some of your problems weren't solved here, they will definitely be solved there, so check it out!
In unrelated news, in case you are wondering what happens in the future, I was, or rather, will be declared god. If you do not want to face my wrath in the future start worshipping me NOW.

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