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Questions tagged [enclosure]

An enclosure is a box to hold your electronic device.

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1answer
43 views

Is the meshed metal cage connected to the earth terminal in these embedded power supplies?

The SMPS below has screw terminal mains entry as line, earth and neutral: Is its meshed metal cage in general connected to the earth terminal internally? I could check it if I had one but at the ...
1
vote
0answers
78 views

PCB hanging upside down in its enclosure

Would this be a problem in a moderately high vibrations / shocks environment (passenger car interior) ? The screws are 1.8 mm thread diameter, 5 mm long, the PCB being some 90 x 60 mm with nothing ...
9
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3answers
983 views

PCB enclosure tolerances [closed]

I can imagine problems of PCBs not fitting into their enclosures or misaligned screw/hole pairs. Are these type of problems common, especially with the dirt cheap enclosures? I am planning to use one ...
4
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1answer
53 views

What is the best way to mount a LiPo battery in a project box?

If you were going to use a LiPo battery such as this one: . . . and needed to mount it safely and securely inside a project box similar to what is pictured below what best way to achieve that?
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0answers
33 views

UL Requirements for Enclosure

We are installing a large outdoor digital sign that is using a UL certified Samsung outdoor monitor, so I was wondering if the enclosure needs UL certification as well. The Samsung monitor will be ...
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3answers
48 views

I designed a touch PCB keypad what can I do for silking and covering

I want to design a custom keypad for my board. I put my board in a Plastic box 15cm x 19cm and the box has a simple box door. I want to put a keypad and a 2x16 character LCD in this door to control ...
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1answer
76 views

Safely housing a power supply

I'm building a 3-d printer, which will be driven by a smoothieboard. This needs a 24V power supply. I've bought the one shown below: What I don't know is how to house this safely. I think there's ...
5
votes
1answer
130 views

Flat Yagi antenna Enclosure

So, I was annoyed that my Yagi antenna was enclosed in a plastic-tube, which lets it roll around and fall off the table occasionally, but without its enclosure the elements hooked in anywhere. So I ...
5
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4answers
1k views

How to fix a PCB inside this enclosure?

This is a related question to How to fix this in an enclosure without glueing. However, for a protoboard/PCB, how could I attach it to the enclosure? The bottom of the enclosure has holes for ...
3
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4answers
554 views

Heat problems when using 5 buck/switching converters in a double isolated enclosure?

I want to use 5 step down converters (220 VAC -> 5V DC) inside an enclosure inside an enclosure (double isolation). The step down converters are similar to these. There will be 5 of them, where one ...
3
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1answer
96 views

Manufacturing of Translucent LED Indicating Symbols (e.g. router indicator lights) [closed]

I've been researching how manufacturers create custom LED-illuminated symbols such as those seen on the router in the image below: I haven't been able to find any information online from custom ...
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3answers
133 views

Inline Voltage Divider - do they exist?

I'm looking for a neat off the shelf solution to halving a voltage via a resistor network. Some kind of small module, (probably GND, signal in, signal out) that can be wired inline with a sensor that ...
5
votes
1answer
80 views

How to mount pcb with IEC320-C14 power entry connector inside enclosure

I am making a PCB which has one IEC320-C14 and one IEC320-C13 connector on it (Like this one). The PCB will be quite small, just large enough for some sensing circuitry; between 5 and 8 square inches. ...
29
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8answers
5k views

Moisture Trapped in IP66 Enclosure

I got a field report of a product which is sealed in an IP66 aluminum die cast body. it was observed that water/moisture had condensed inside the enclosure over and over and creating some white marks ...
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2answers
51 views

Questions about earth grounding enclosures

A text mentions about the importance of connecting the earth wire to an instrument case/enclosure as follows: Instruments with ungrounded cases can become lethal devices in the event of ...
0
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2answers
78 views

Ways to thermally manage a small enclosure?

hopefully this is an okay place to ask this question, but anyway, I'm working on a project to measure efficiency of a mono-crystalline solar cell based off temperature in the enclosure. The solar cell ...
3
votes
1answer
135 views

Watertight enclosures - what production steps are required to ensure no condensation on the insides?

Background We want to waterproof an electronic device and the specifications call for IP-65 protection. To this end, we have selected a sealed polycarbonate box to put the electronics in. The ...
2
votes
1answer
71 views

5.8GHz omnidirectional antenna inside wood

If one would enclose 5.8GHz transmitting omnidirectional antenna inside dry wooden block (wood would be cut to semi-precisely fit the antenna), how much it would attenuate the signal? (roughly) And ...
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0answers
31 views

A question about a sensor in a metallic enclosure

I need to mount this sensor inside an aluminum or metallic enclosure. Then the sensor will stay inside the enclosure. The enclosure will be mounted outdoors on a bridge concrete or some part I dont ...
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4answers
82 views

Mounting a sensor against the inside of an enclosure

I have a plastic ABS project enclosure which I'm trying to figure out how to mount a sensor to the inside of, against a window that will be placed into the enclosure wall so that it looks through the ...
0
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1answer
77 views

DIY EMC Tents for EMC/RFI testing?

Been looking into doing from preliminary work on EMC testing in house prior to sending various bits of machinery to certification labs. One suggestion is that we carry out the testing in an EMC tent ...
1
vote
1answer
66 views

Grounding an Enclosure

I have been working on a hi-fi audio amplifier, and I plan to put it in a metal enclosure when it is finished. The amplifier is (relatively) low power, so I'm powering the system from a wall-wart ...
2
votes
1answer
434 views

Temperature sensor reads higher inside enclosure

I have an HIH6130 temperature and humidity sensor inside a plastic enclosure with a Particle Photon. When it takes reading while inside the enclosure, the readings are ~ 2 degrees too high, vs ...
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3answers
94 views

How do I make my electrical enclosure waterproof, what type of connectors I use?

We are designing this meter which will monitor house hold consumption. The problem that I am facing right now for days and weeks now, how do I make the meter water proof. I have tried everything but ...
2
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2answers
511 views

What metal-printing methods exist to create this style of finish? [closed]

I have an old panel faceplate (circa 2000) that I am trying to create a replacement for. It appears that the two commonly available methods to put graphics on a metal faceplate are UV printing and ...
21
votes
17answers
4k views

How to 'fix' this in an enclosure without glueing?

I have an enclosure, and want to fix/put a STM32 inside, a relay and probably later a small circuit board. However, the STM (STM32F103C8T6) and the relay do not have holes to fix them... and I do not ...
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1answer
281 views

Will a cheap RFID reader work behind a 2mm aluminium sheet?

I'm building a information contact panel that will serve as a point of communication between employees and their company. Part of this process involves putting an ID card to the panel, so it can be '...
0
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1answer
127 views

Grounding a soldering iron and it's enclosure

So, I assembled a soldering iron kit and put the control unit in an aluminum enclosure and intend to use a Mean Well SP-240 24V power supply with it. I just wanted to verify a couple of things. The ...
3
votes
1answer
97 views

Tactile switches to meet EMC standards and IP67

I'm designing a handheld device that has just a few buttons that will make some configuration changes. (Very much like a game controller) I'm currently making a set of 3 prototypes - a production run ...
0
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1answer
56 views

What converter to use?

I am going to build a stage box, and I need 5V for that (to add some logic, maybe even later an STM32). I also need mains (220V) for a 12W RGBW LED PAR light. At first I thought to put in the box a '...
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0answers
190 views

Connecting multiple series battery holder in parallel of 18650 batteries

I'm pretty new to this, i understand how series and parallel work. Just want to ask if it's safe to connect multiple series battery holder in order for them to be parallel? If my battery are all the ...
6
votes
5answers
933 views

Motor enclosure top lid has electric spring

I fear this might be a little bit too simple for this Stack but I'll still ask. I dismantled a motor from an electric meat slicer of the very old type: When I opened the enclosure I found that the ...
0
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1answer
45 views

Modifying power strip in enclosure to attach to power entry connector

We are using an off-the-shelf power strip to distribute power to several devices in a large aluminum, painted Hammond brand enclosure. We'd like to be able to switch the power on and off with an ...
1
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1answer
191 views

Heat problems for STM32F103C8T6 in enclosure

For my hobby project, I'm intending to add a STM32F103C8T6 (and later STM32F407VET6 or ZET6) into an enclosure. For worst case case, let's take the 407, the datasheet can be found here. On page 80, ...
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1answer
113 views

vibration dampening comparison [closed]

I am trying to mitigate between costs, ease of mounting, of enclosure matching and costs for a smallish PCB (< 100 g / 4 oz and about 35 x 50 mm / 1.5 x 2 in) used inside a passenger car. And so ...
1
vote
2answers
673 views

Grounding without Ground

My system use only line and neutral connection from mains (no ground.) Inside this system it is converted to 5V using SMPS. My enclosure is metal, I need to ground this enclosure. Since I do not ...
3
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3answers
154 views

Shielding Amplification Stages Separately

I am currently designing a prototyping board for fast pulse detection with 4 amplification stages at the input. I am currently not able to provide a schematic portion of it as I don't have access to ...
2
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1answer
343 views

Metal enclosure for custom car stereo project

I'm thinking about developing a custom car stereo, and it surprised me that there's no DIY enclosures for this purpose. I've just found plastic boxes in the 1 DIN size which can be installed into an ...
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2answers
71 views

battery enclosures - i am not geting the hang of it [closed]

I find it so hard to search for some casings for my board... Why are the battery casings so rare ? I must be missing something. Other questions Will this case fit 2 AAA batteries ? how do I ...
2
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0answers
715 views

Tactile switch actuator extension methods?

I am not a 100% sure this is the right place to ask this, but I couldn't figure out another, more appropriate community. I am designing a PCB for a product, which will have a tactile switch. The PCB ...
3
votes
1answer
403 views

Acrylic mounting and esd

I like the aesthetic of clear acrylic mounting of PCBs and I want to use it for a project I'm working on. For example as seen in the Mighty Ohm Geiger Counter, Is esd something I should worry about? ...
1
vote
0answers
70 views

Closed enclosure thermal design the right way

I have a circuit board that works quite well (processor, screen, power supply). It has been tested successfully for an open aluminium enclosure, but now it will need to fit a rugged 100% closed box. ...
5
votes
3answers
1k views

How can I safely use an aluminium enclosure without an earthed socket

For a mains-supplied circuit I want to use an aluminium case, so the case can act as a heat sink. However, I want it to be safe, also when there's no earth connection in the socket where the circuit ...
1
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2answers
95 views

Help in identifing these 2 materials

i would like to know if anyone of you recognize these 2 materials and what they are used for ? A material sticky on one side normal on the other , used between capacitors and aluminum enclosure . A ...
2
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3answers
842 views

How to mount the PCB in a watertight die cast aluminium enclosure?

I would like to know how to secure the PCB into a watertight die cast aluminium enclosure that has no visible mounting posts. There are plenty of those on the Hammond website, and I don't understand ...
2
votes
1answer
660 views

how to drill anti-rotation holes in enclosures?

I am wondering how those holes with a flat for connectors are opened in enclosures. I'd like to know how do to it when prototyping world and in production for aluminum and in plastic.
2
votes
3answers
1k views

Cooling an outdoor electronics enclosure

I built an outdoor enclosure which contains electronic devices (cable modem, router, battery backup, MCU, etc) for a long-distance internet connection. The enclosure is made of insulated metal panels ...
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2answers
80 views

Large Battery Cell mounting in Enclosure

I am trying to figure out the best way to mount a battery like this (http://www.batteryspace.com/polymerli-ionmodule37v10000mah37wh85arate-prewiredwithpcbpl9059156.aspx) onto a 8" x 6" PCB. There do ...
5
votes
1answer
1k views

Making aluminium conductive for an RF shield enclosure

I'm not sure if it's appropriate to ask here, but I would assume many people in electronics would have experience with this. I'm enclosing an RF sensitive PCB into an sealed aluminium enclosure. ...
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1answer
82 views

enclosure fabrication resources for the upscale hobbysist [closed]

I recently saw a beautifully made 1RU 8Ch microphone pre-amp that was in a beautiful enclosure with a very pro looking faceplate and so on. The engineer wouldn't share who made it for semi-obvious ...