For the 99% of people who don’t attempt electrical repairs on their vacuums, that fuse socket would be sitting inside of a vacuum in a landfill.
Drive around any US suburb on trash night and pick up a couple of appliances. Most of them either still work 100% or have trivially fixable issues. People (US consumers especially) don’t fix stuff.
Don’t get me wrong, I love fixing things myself. I’ve probably saved $10,000 over the past 5 years by fixing things people were throwing away instead of buying. The ease with which this is possible to do demonstrates how few people attempt repairs themselves.
You joking? You realize houses and cars have socketed fuses that can be replaced almost turnkey. This is a simple solution to build into the product a UI that let's the user know a socket was blown and allow the user to replace a fuse like replacing a AA battery. FUSES are designed to fail and be replaced. Making those FUSES inaccessible is ALSO a design choice because it's contradictory.
There was a point in time where every phone had a replaceable battery. You think that replaceable batteries disappeared because companies wanted to save costs? Sockets for batteries have been part of the design philosophy for consumer products for decades, the fact that these sockets are removed from phones is not a cost saving measure.
This issue is much more widespread than you think: https://www.youtube.com/watch?v=SrDEtSlqJC4
Phone batteries are designed to be replaceable. They’re internal because of design considerations, not cost. In fact, nearly all cell phone batteries are secured with removable adhesive because they’re specifically intended to be replaceable.
Homes have circuit breakers (fuses haven’t been mainstream for a while) because the load is not predefined, and can be occasionally exceeded by the end user. This is not the case for a consumer appliance with a known load. An unexpectedly high load is an indication that another component has also failed. There’s some diagnosis that should be done when replacing a fuse on a system with an unexplained over current situation.
Making something that is designed to fail and be replaced (fuses) inaccessible is a contradictory design philosophy... Unless this design philosophy is INTENDED to make the product fail. You place a component designed to fail inside a vac and make it inaccessible then that means you are designing the vac to fail.
Phone batteries are not designed to be replaceable this is a lie or pure stupidity. You realize that glue or adhesive is not designed to be removed right? It's designed to be permanent. Screws and socketed components are designed to be removed.
Additionally the iPhone isn't even designed to be opened. It's extremely hard to open that device and it's completely obvious the reason is because that device is designed to both fail in a certain time frame and only be serviceable by apple technicians. Here's how easy it is to "replace" a battery you claim was glued into the phone as a design decision to be "replaceable": https://youtu.be/gkCyl7kRGns
>My above point is was that cost is an example of an engineering tradeoff, not that it is the only engineering tradeoff
Who in the universe isn't aware that tradeoffs outside of cost don't exist? Kind of useless if the point is to obvious. How about you address my point in the fact that deliberate decisions were made to make products fail and that these failures are not design tradeoffs.
A thinner phone for an irreplaceable battery in the iPhone is not actually a tradeoff. In fact if you look inside the phone they very much could've screwed the battery in without increasing the thickness of the phone.
You realize that Steve Jobs once said the iPod was designed to only last a year?
1. Cars cost 600x what a shop vac does, so more people attempt to fix them.
2. Some fuses in cars are, in fact, not socketed. Particularly for the higher-current and more dangerous circuits where unexpected overloads are of a greater safety concern and are less likely to be due to fluke events. For instance, fusible links[0]. It would certainly be possible for automotive designers to design a socketed fuse in place of a fusible link, but the cost to do it would be 'high' relative to the frequency of failure, the risk, and the likelihood of user-serviceability. Again, an engineering trade-off.
[0]: https://m.roadkillcustoms.com/understanding-fusible-links/
> Do cars have unexpected loads?
Yes, every car I've ever been in has accessory circuits that a user could easily overload. And I have done so myself many times. Also, there are a lot of electrical parts on a vehicle with limited lifetime that are prone to mechanical failure: relays, bulbs, accessory actuators, etc. When these items fail, they can stall/short and cause an overcurrent condition.
You wouldn't throw away a $30k car because a bent pin on a $1 tail light bulb shorted out. You'd replace the $0.10 fuse and get another $1 tail light bulb. But, you'd probably throw away a $25 blender when the $18 motor laminations short out, because the failure would cost more to fix than the entire product is worth, especially if you're paying labor to fix it.
Fuses exist to fail when some other failure condition happens. Many failures on a car are economical to fix. A blender is totaled if nearly anything happens to it.
> Phone batteries are not designed to be replaceable this is a lie or pure stupidity. You realize that glue or adhesive is not designed to be removed right?
Mainstream phones (iPhone, Samsung, etc) are typically designed with adhesive that has removal tabs which deactivate the adhesive and allow someone to remove it cleanly. They could simply leave this feature out if they didn't want it to be replaceable, but they didn't. Their intentional adding of this feature is evidence that they do intend for the battery to be replaced. Example: https://guide-images.cdn.ifixit.com/igi/yAxAcOuZkVKD1xAY.hug...
> Additionally the iPhone isn't even designed to be opened. It's extremely hard to open that device and it's completely obvious the reason is because that device is designed to both fail in a certain time frame and only be serviceable by apple technicians.
It's hard to open as a result of the design/engineering trade off. Just because it's hard to open doesn't automatically imply that someone must have plotted to make it hard to open. It just means that end-user serviceability wasn't a high-priority design feature. It's hard to open simply because glue is a cheap way to make something thin, waterproof, and cheap to manufacture. If Apple really wanted to waterproof their device while intentionally make it unserviceable, the electronics industry has way better ways to do that: https://en.wikipedia.org/wiki/Potting_(electronics)
> Who in the universe isn't aware that tradeoffs outside of cost don't exist? Kind of useless if the point is to obvious. How about you address my point in the fact that deliberate decisions were made to make products fail and that these failures are not design tradeoffs.
Your point is valid for instances of proven malice, but one should not assume malice where a valid alternative explanation exists.
2. Fusible links are designed that way for safety. The hood of a car is designed to be opened so that even a fusible link can be fixed.
3. When I asked: Do care have unexpected loads? I answered that question right after I asked it. The question was rhetorical.
I'd rather replace a fuse in a 25$ blender then buy a new one. But either way, you wouldn't throw away a $100 dollar vac or a $500 dollar iPhone just because a $0.10 fuse shorted out.
>Mainstream phones (iPhone, Samsung, etc) are typically designed with adhesive that has removal tabs which deactivate the adhesive and allow someone to remove it cleanly.
True. BUT these batteries are still extremely hard to remove as they are locked into the case. They were designed to be hard to remove so that apple service people can repair the few phones that statistically beat the warranty.
We both know that the iphone is basically designed with a battery that is so hard to remove that it can be basically classified as not removable by the average layman. Very different from the way all phones use to have removable batteries.
>It's hard to open as a result of the design/engineering trade off. Just because it's hard to open doesn't automatically imply that someone must have plotted to make it hard to open. It just means that end-user serviceability wasn't a high-priority design feature.
That's my point. How do you know it's a tradeoff? How do you know it's not a design decision? Basically Apple is incentivized to make the phone hard to open. Additionally all apple policies of "repairing" a phone basically make "repairing" the phone cost as much as buying a new one. With every policy surrounding the phone is positioned, it's more than likely that the decisions are deliberate.
>Your point is valid for instances of proven malice, but one should not assume malice where a valid alternative explanation exists.
My point is valid for instances of suspected malice. The motive exists. Do you trust someone trying to sell you a new crypto just because there's no evidence of malice and that an alternative explanation exists? No. It's stupid to believe there is no malice.
It is far wiser to assume malice exists wherever profitable incentive exists, such is the nature of business.