This is the 558th scientific experiment pushed by the explosion laboratory.
A small experiment every day, take your child to play as a scientist
Electric fan is a common small appliance at home
Those days without air conditioning
Electric fan accompanied us through
One after another, the hot summer
Burst also took you to do a small experiment of
"mini electric fan".
Many electric fans have a head shaking function
But do you know how electric fan shaking function is implemented?
Today I will take you to make a homemade
shaking electric fan
Check out the secret of electric fan shaking the head!
- Shaking head electric fan -
motor x1/6cm iron shaft x1/small iron frame x2/battery box x1/tee-way sleeve x4/shaft sleeve x10/1.5cm iron shaft x3/2cm iron shaft x3/4mm screw x10/middle plate x1/fan page x1/pulley wheel x1/fix plug x1/foam glue x2
step1
Connect the power cord of the motor box to the motor
(note the positive and negative pole link)
step2
assemble the small fan blade and the motor
step3
install the battery box
turn on the switch to test whether the circuit is correct
step4
On a 1.5cm iron shaft as shown in the following way
Install two sleeves and two tee sleeves
step5
Insert two 2cm iron shafts at one end of the two tee sleeves
step6
Insert 2cm iron shaft in one hole of the pulley (fixed)
Insert 1.5cm iron shaft in another hole of the pulley (movable)
step7
As shown in the figure below, install a shaft sleeve and a tee sleeve on the iron shaft.
step8
The following figure is
Link two tee shafts together with 2cm iron shafts
step9
fixed two small iron frames with screws on the long rod
step10
insert the 2cm iron shaft into the other side of the long rod fixed
step11
Fix the iron shaft of the pulley
and the white shaft of the motor
step12
In the long hole on one side of the motor box
Insert a 6cm long iron shaft
Install two shaft sleeves to fix
step13
6cm long iron shaft is also fixed with a shaft sleeve
so that it is installed!
step14
Fix the plug with screws on the middle board
step15
Fix the battery box with foam glue on the middle board
html step16
Fix the line with a tie ties
step17
Open the switch
shake the head and the electric fan starts to shake the head!
Experiment successfully
Start to wait until summer to use your own
shaking electric fan
made of
to enjoy the cool air!
After the motor is powered on, the fan blade rotates . The rotation of the tilted fan blade will push the air around , and the air flow will generate wind .
motor drives the rotating wheel to rotate . Since the wheel is fixed on the connecting rod that can rotate about the axis, under the joint movement of the rotor and the connecting rod, the motor moves left and right around the long axis of , forming the effect of "shaking the head" left and right.
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did you want to explore the secret of electric fan shaking your head with your children? We have prepared this experimental material package for everyone, including all the required parts in the video. 16.8 yuan , quickly click on the picture below or long press the picture to identify the QR code and order it!
head shaking small fan experiment is in explosion box-gift special edition , this is a scientific knowledge gift prepared for children.
Xiao Wang said that remote control planes, clothes, shoes, and children from relatives are basically there. It is really difficult to find a small gift that is liked, fun and meaningful for the children.
Ms. Li wants to give gifts to customers. If you buy a toy, it will take hundreds or even thousands of times at any time. It is inappropriate to be too expensive and it is too cheap. Customers will look down on it. I would like to know what meaningful and valuable gifts to the client's children.
So I have prepared this different scientific knowledge gift for everyone - explosion box - gift special edition .
To facilitate everyone to send parent-child, friends, customers and children, 4 boxes only cost ,650 .
Explosion box - Special gift version
Click the picture below or Long press to identify the QR code below to buy!
Click "Read original text" to order the explosion box - Christmas gift version
