Hair dryer (curler) teardown & quick repair
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- Опубліковано 5 вер 2024
- Today I took a look inside a hair dryer, curler, styler, dresser, hot air brush or whatever it's called. I reverse engineered its schematic, explained how does it work and revealed its design flaws. I also found its common failures and fixed it.
You can support me on Patreon:
/ diodegonewild
How does the diode gone wild?
It was placed inside a 1000 watt heater.. 😬
I love the bonus surprise and sudden disassembly of the pen. And I really love that you just kept on moving forward. Love your vids, keep making them :D, I will keep watching.
18:34 Safety is number one priority!!!
Lol, didnt see anything wrong untill you pointed it out.
You mention that it's better to "let the solder go slightly under the wire insulation, because that makes it stronger." Well, in my training to build aerospace standard electronics, we were taught to NEVER allow the solder to go under the cable insulation. The reason given was that by binding the strands together, it actually makes the cable more brittle and weaker. In contrast, a bundle of many separate wire strands can slide against each other when the cable is bent, will be more flexible and tolerate being bent many more times. Our instructor would cut apart our practice soldering to 50-way circular connectors, and if any solder had gone under the wire insulation, we had to start the whole assembly again... It drove some graduates crazy trying to get it right because you have to solder very quickly to stop the solder "wicking" up the wire.
Nice! And I love your bloddy hell! It is 5 years old but allways interesting.
The guy with the czech accent has alwas entertaining and educating videos! Thank you!
where is the cat?
NANI
teks viler: The cat got some electric shocks and turned into a dog. 😱
hahaha
You should ask the dog. He looks so guilty.
the dog actors' union protested and now DiodeGoneWild will have to make some videos with the dog!
I love your "screwdriver in the mains" multimeter setup to get the amp reading!!! Seeeeeyooper dodgy!
Greetings from Poland ! The moment with the exploding pen is epic :D
a lot of power is pretty usual in many kind of hair drier here in italy
last year i was searching for an hairdrier and Bloody Hell! the less powerful i find was 1800W!
I've seen models with 2200 W of power!! Very impressive!
I remember my old hairdrier (when i was a child) it was only 0.4KW!
İn Turkey they usually 2.2kw.
The negative high voltage is for taking out the static of the hair..and yes girls are creative with sticky tape 😜
Thanks for the info. Seems that hair generates a positive static charge that's compensated by the negative electrode. I have no experience with this, I barely have any static electricity generator on my head :D.
Good. One hot hair brush back in service now. I just needed the heads-up on the way the two sides of the case are separated. Cheers!
Loved it it did help me the layout and the teardown information helped a lot I didn't know that even had afuse
I hate interlocking plastic parts with my soul and heart! I brake the clips every time I try to open a gadget =)
I repair GHD and cloud 9 hair straighteners part time and I'm quite familiar with most of the faults that happen with them, failed cords are only one of the problems I've seen with them. Cracked heater elements, wires burning off the heater elements, thermal fuses, failed temperature sensors (on GHD4.2 and 5.0) etc.
knowing stuff and explaining it... great
Looks like your pen is rated for low pressure values :)
Yes the second one was a bit odd, smoke was coming out of my ears :-D.
When there are too many paths i lose track lol.
I remember some of the plastic hair dryers having the motor tapped on to the negative end of the element for power, through a diode bridge of cause.
Imagine a plastic coke can with a handle, that's the sort i've seen.
You are not the only one with hair loss, i started losing it at 17, but life goes on :-D.
Get yourself a modern cap or similar.
Yes, the second one is a brain melter :). And it initially was an even bigger brain melter for me, because I have mistaken one diode for a wire, as it was inside of a sleeve. I remember my mother's old hair dryer ua-cam.com/video/4MQlMNtjC1Y/v-deo.html from probably 1970s, with an universal (brushed) motor running directly on 220V ac.
Senin sesin bana huzur veriyor kardeşim..
I just have this big box full of those old hair dryer fans that I got out of hair dryers from the past and I think I have about 40 of them
Pen "made in china" ??
Or "made in Chin" (See his other video for that one!)
Just needed to see you take it apart.
Hair dryer, curler, transformer opener so many uses
I really like your videos man, keep going and be careful
hahaha.. You gave me BIG LAUGH!
Pen is broken.. "Bloody heealllllllllllrr~~~"
1:38 "its often being used in a bathroom..." Not in the UK, it isn't. 230/240V mains sockets are not allowed in bathrooms, shower rooms or next to sinks. Women have to use these devices in their bedroom.
In the Czech Republic we do have sockets in bathrooms. Every bathroom has one. In older buildings, the sockets are sometimes directly above the bathtub (!!!). Nowadays it is banned to have it directly above the bathtub, but it is still legal to have it in bathroom as long as it is not directly above the bathtub.
Same here in the Netherlands. In bathrooms over here you will often find devices like this:
www.elektra-info.nl/wp-content/uploads/2016/06/wasmachine-aansluiting-afgemonteerd.jpg
If you have electrical equipment like washing machines that need to be in the bathroom, they connect to mains directly without plug inside that box. Like this:
bestewasmachinekopen.nl/wp-content/uploads/2015/10/20151027_134728-168x300.jpg
The box is completely watertight, so no water can come into contact with electricity.
The only other way to have electricity in bathrooms is a shaver socket (through an isolation transformer), but those don't give enough power for hair dryers.
Simon Tay, I always wondered why do you keep washing machines in some strange places like kitchen, now I got my explanation. Thank you :) But you have plenty of peculiar regulations, like these yellow isolation transformers on worksites - in day and age when every single power tool on the market is double insulated.
The yellow isolation transformers output 110V AC with a centre tap to ground so 55-0-55. I think the main reason for them is in case the cable of a power tool is damaged or cut. The maximum voltage between one phase and ground is 55V which is safer than 240V to ground. Washing machines are usually only in the kitchen in very small houses/flats. Larger houses usually have a utility room with sink, washing machine, dryer and sometimes a toilet. My washing machine and dishwasher are next to the sink in the kitchen of my small 1 bedroom house but my parents have a utility room with sink, toilet, washing machine, dryer and the gas fired boiler for hot water/central heating.
In Belgium, "humid" rooms like bathrooms are equipped with sockets, but installations newer than some 30 years must be protected by a 30mA differential current circuit breaker. For some reason my whole Czech flat is protected by such a 30mA, not sure if it's a standard in this country or they just wanted to save on an extra 300mA one.
An anomaly here! Cat and dog are never in room at same time. A Clark Kent / Superman thing going on here! LOL
Why many circuits don't have ground?
I assume the negative ion generator is made to squash static, brushing hair causes a lot of static and putting essentially a hot vacuum over it doesn't help
It's amazing that every hairdryer sounds the same
5:57 18:53
So thats why this channel is named DiodeGoneWild
5:58 the diode is strong btw, your multimeter should go there first 11:08
I liked for the dog!
The overheat protection acts also as a thermostat. The heater is only on for a short time. The heater has a high wattage to warm up fast but for short time. Usually the air temperature is around 70 degrees celcius at the output.
I don't think the protection would cycle in normal operation. I think it is normally still on. The heater has a low thermal mass, the temperature cycling would be noticeable. And most importnatly, if the protection turned off, the fan would turn off too.
@@DiodeGoneWild hmm correct, but there must be a thermostat somewhere. 100 watts would get very hot if on constantly.
2:46 your dog doesn't look very happy. He looks nervous or scared.
This dog is always a bit shaky and scared for no reason. It's her personality.
" bloody hell my pen just explode" 😂
Amazing vid!!!
Louder left speaker.
Hello, really like the explanation. Was wondering if you could assist me with some info. I'm trying to marry my soldering iron to a hair style like the one in your video. Basically what I want to do is use the hair styler fan (without the heating element) to blow air through the soldering iron to produce hot air like a hot air gun. How do I wire them ?
I've loved your pen hahah
Those are nice devices to upgrade to use as hotair-heaters for shrinktubes... not too wel as spaceheaters ;-)
12:50 áno aj to je možnosť ale.. Neviem či si niekedy videl ako sa kulma používa ? Presne tak, otáča sa s ňou :) A čím sú vlasy dlhšie, tým viac otáčok. Po pár mesiacoch používania bude prívodný kábel pripomínať točenú telefónnu šnúru.
I tried to make circuits in EveryCircuit and it didn't work without ground, is it bug? Did I buy application with bug for 70$ or I am stupid and I don't know cables in houses are grounded on minus voltage source?
7:58 what's the point to have a thermal fuse on the lower power heating element only?
So why only 3 of the 1N4007 Diodes on your second schematic? Way different from the first schematic. Same watts as well? Thanks for the videos.
I wonder why they wouldn't just use a universal motor for the fan? Maybe the DC one is quieter?
1n5408 3amp diode? Is that pluck that pulls out of hand unit safe - 220v live when it pulls out?
10:46 is there something more likely than a multiplyer?
Nice research.
12:30 Hurray, so I'm not the only one :-)))
Another great vid. Thanx.
what is the material "mica"?
Mica is mineral used as an insulator electrical/temperature in this application.
en.wikipedia.org/wiki/Mica
Noah Czernin It's a form of Silicon if I'm not mistaken, it's pretty flexible and heat resistant and very good insulator
Mica is a rock mineral that is found in layers you can break apart into thin sheets. Past that I don't know what it is formed out of or anything. It used to be very popular as insulators in electronics for heat sinks before the advent of those silicone rubbery isolation pads. I think mica actually may thermally perform better? But mica is fiddly stuff that takes a lot of handling to work with. Read production wise it is expensive to use. So due to cost it has fallen out of favor in the industry. Plus people probably think using mica is kind of old and crufty looking? I like it. I have a nice collection of salvaged mica isolators. I just had to pull out the drawer of them to admire for a bit here.
Did the dog ate the cat ?
The dog would burst, it's not much bigger than the cat :). The cat could also eat the dog :).
This vidoe almost looked like electroboom
Video not vidoe lol
Is this "twisting plug" really so dangerous and dodgy as it looks?
You have a dog too !
měl bych 2 dotazy :) Co je to májka a je nějaká šance, že přesedláš na mikropájku, 0,5 cín a flux ? :) jinak dík za videa, jsou super.
Cameron Hli "majka"=mica=slída
Nepřesedlám, já jsem neandrtálec s kyjem (trafopájkou) :).
I like the channel and videos and your voice is easier to listen to and at 19:09 your pen gives way oops
Pen gone wild :P
19:08 The explosions come in the most unexpected things
Bloody hell! LOL
I see a hot air station waiting too happen
And what happened with your cat
19:08
Eh, i don't mind the diode being right inside the heater. I mean what's the worst that can happen if it fails? Low-power setting won't work. Seems to not be a safety concern. I mean look at the thing, everything else fails before the diode! The cable and the the brush both.
Still never used this, probably never will, i mean you're suggesting i use a high-power mains heater that can get tangled in my hair? No, thanks. And wow the condition of some of these things, they should have been discarded for good long ago. Besides, they aren't cheap.
I don't think you should be shocked at the power though. I mean a basic hair dryer is 2kW. I think this is supposed to be the "gentler alternative".
Have you ever smelled the pungent combination of burning hair and magic blue diode smoke?
Sure it's not an electrical safety issue, but that magic semiconductor smoke is *really* difficult to wash out of your hair.
I don't understand why you believe hair would have to be on fire specifically.
And diode smoke isn't TOO bad, and most of it is PCB smoke anyway, and here it's on Mica, so that's fine.
@@SianaGearz; How can there be PCB smoke if the diode is directly mounted to the heater block?
The semiconductor is directly bonded (usually via gold wires) to the package leads, while the package itself is usually an epoxy polymer.
Have you actually ever had the smoke from burning semiconductors blown directly into you hair and been able to remove it easily?
2kW is usually a heat gun for peeling/burning off paint and such, you'd need a crapton of air going through it to keep the output at some sane temperature usable for drying hair :D
Your average hair drier is between 300-750W...
19:08 LOL
Bloodyy Ell that pen scared the $H!t outta me
Who engineered that with
1, 000 twatts?
Key "TURBO"?
I thought thumbnail was didlos
😀😀😀
Joske18: I hope you are not too disappointed...😁
Nemůže se to zanést lakem nebo vlasy a začít hořet ?
I to se asi může stát :).
negative ions in the air really don't do anything.
If you have old cables or power cords,switches or even sockets it would last for 100 Years.With every stress.
Super!!!!!!!!
What's that soldering iron?
It is a soldering gun.
No kitty = no video
A dog is not good enough? :)
Just created by that
I dont get it how you compared it to asbestos?
It was a joke :). I said that women must have heads of asbestos because they can blow a 1000W heater on their heads :).
@@DiodeGoneWild i have childhood memories of throwing asbestos roof tiles in fire and it exploded like crazy. Who knew women can explode.
Кристиян Митев - there are plenty of warnings about women in the relevant safety data sheet... (search for “material safety data sheet woman”).
1:13 and 1:50 got me ROFL. Especially 1:56.
@1:34 serial no 09/11
K čemu je prosím ve fénu ten vysokonapěťový generátor?
For negative ions
That pen was super dodgy!
eta Made in China?
Bloody hell 😂
Where Is your cat you sold her or him?
My cat is right next to me :). I'd never sell her. The video was recorded in the "dog location". If you didn't know, I have two recording locations: the dog location and the cat location :).
Where is the cat? ;)
In a different location. I record my videos from two locations - the "cat location" and the "dog location" :).
Lol funny accent, sounds very sarcastic
Does it vibrate?
What's my soldering wire diameter-0,4 mm;What's your soldering wire diameter-2 mm😁
I have 1kg of 1mm wire and 1kg of 2mm wire. I never ever used anything below 1mm :). Given the amounts of solder I use, I couldn't unwind it fast enough :D.
@@DiodeGoneWild I have also 1mm but I usually buy 100g for 9 leva or 4 euros
Have you ever had a trip to Bulgaria?🤔☺
Just watched 20minute hair drier Video
A thousand twats
Great vid !
Hey, i am new to this channel but I like your videos much. So please do more of them but maybe get a clamp meter or some proper current measuring device. Putting a screwdriver into the mains is dangerous. You’ll probably know this yourself. And while doing such things is tolerated in many parts of the world it’s not a good practice to show to such a big audience. Some half grown might see it and try’s it out (ignoring your warning at the beginning of the video).
People have been properly warned. I do have a clamp meter, but sometimes I just can't avoid the temptation to do it the dodgy way :).
Honestly? He's doing it indoors, not on a bare concrete, probably with a shoes on, has dry hands, doesn't touch anything remotely grounded with his other hand, there's no physical way for him to grab that screwdriver after getting a muscle contraction and he surely has RCD - in worst case it would be few cursewords. In fact, I know plenty of old (like 70+) electricians that would just work live with their hands on wires in such conditions, but I wouldn't recommend it unless you have 50 years of physical work thick skin on your hands;) Good practice is also risk assessment. Lately we started to train electricians that are so loaded with "never work on live stuff, it will kill you in 50 different ways no matter the cimcurstances" that they tremble after looking at open distribution panel or a live bare wire. It's counterproductive and does not improve safety at all.
so well
izolepa spraví všechno :)
Nice
19:07 Too much pressure pressing the pen on the paper?
EDIT: Just passed 20:03. Thanks for the info.
EDIT #2: 2003 is my birth year. XD.
1:46.. or stupid.
19:09 xDDDDDDD
Člověče! Jste pitomec?
To nejdůležitější, JAK SE DO TOHO DOSTAT a přitom nic neposrat jste neukázal!!! A to nemluvím o angličtině. Tomu jsem téměř nerozuměl.
Celkový dojem je tragický.
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