entranceUSB connectors for cars. Stationary USB connector in the car do it yourself
Brand recently, the USB connector in the car was almost luxury. There is no such connector and in many modern cars, not to mention the models released 10-15 years ago. We present to your attention an embedded outlet for 2 USB. This supplement is an indispensable device for your car. The first connector provides a current in 2.1a, and the second - 1.0a
The device has a neat elegant geometry, the black color will not spoil the color harmony of your salon. The splitter is made of durable nylon and metal, the housing is completely sealed and the dust and moisture is not afraid. Additional confidence gives a protective rubber cover that provides waterproof USB connectors. The device is mounted on almost any space convenient for you using a clips-twist, which is included in the kit.
The adapter is great for modernizing cars, moto of transport, boats or special devices, with a voltage of the on-board network 12-24V. Also included terminals with which the device is connected to the onboard network wiring.
Characteristics:
- Maximum Voltage: 10-26V
- Material: Durable Polymer, Metal
- Dimensions: 36x44mm
- Warranty: 1 year.
Equipment:
- 1 x USB 2 connector in auto waterproof
- 2 x Connector for connecting wiring.
Buy Marine Car H-Quality Waterproof 2.1a 1A Dual 2 USB Misso on our site, just make an order and wait for the call of the operator.
This charging is notable for the fact that it is not inserted into the cigarette lighter socket, and it is installed instead of it or crashes into the panel. By buying a cash freight for $ 1 (as last time), you expect to get something more or less normal - I will study it in detail ... 
A rubber plug closes not only a USB socket, but also a blue LED, which is rather plus.
Setting hole 29mm, depth of installation with 65mm connection terminals
Before charging, it was decided to disassemble it at the beginning to have an idea of \u200b\u200bthe installed components and not to burn it prematurely.
Charging disassembled without global destruction - the rear of the bottom is slightly punctured and the scalpel is removed. 
The LED unexpectedly turned out to be rectangular.
Traditionally sketched charging scheme. 
Charging based on CX8505 (STEP-DOWN 30V 3A 350KHZ UP TO 95%)
It is noteworthy that the converter is synchronous.
The operating frequency of the converter is really 350kHz 
The amplitude of pulsations at the exit when loading 2a is only 40mB 
Now more about problems ...
There is no built-in fuse - you have to put an external 1.6-2A on the wires of the connection.
There is no protective stabilion (suppressor) at the output, i.e. When sampling chips, full onboard voltage will go to USB
There are no filters - no interference occurs. It is advisable to put a filter by inlet power.
Input capacitor Huahong CD110 100MKF 50B (measured 90mkf 0.6) Works with current overload.
In accordance with the specification, for it, there is a valid operational current of only 210mA, and realially under load 2a, the current current over 1a flows through it, while it is naturally heated.
The manufacturer had to put a normal Lowesr condenser 330MKF 35V.
The 85MKHN choke is wound on the core D10.2 / 5.08 / 3.96 (-26) with a wire of 0.6mm 46 turns, which at such high frequencies is inefficient, so the manufacturer had to increase the inductance to reduce the heating of the core. It would be optimally used a ring of high-frequency material (for example -52).
Capacitances C1 and C2 capacitors for some reason are confused by places (compared to the official specification).
Check
Idling current at 7m
Idling voltage 5,23V (USB Tester 5,17V)
Checking heating B. open video at ambient temperature 22 ° С
- Current 2a, choke 71 ° C, capacitor 62 ° C, chip 65 ° C (really even higher, because the case is small).
In the closed form, heating elements will increase significantly, but should work fine.
- Current 2,5A, choke 89 ° C, 75 ° C capacitor, 80 ° C chip
In the closed form there will be overheated elements and charging will not continue to have such work.
- The temperature of the temperature passed over the hundred and testing was discontinued.
- Talk 3,5A very short time without temperature measurement
- An even larger current does not pull - the current program is triggered at 3,6A and the voltage immediately fails.
- Output current KZ - 5,2A (briefly) 
Checking the heating of the housing in a closed form at an ambient temperature of 22 ° C
- Current 2,1A Maximum case temperature 48 ° C
- Current 2,5A Maximum Case Temperature 59 ° C
Mechanical efficiency, voltages were recorded directly on the contacts of the vest 
Attempting to raise the efficiency of the converter to the stated 95% replacement of the throttle and the input capacitor, success was not crowned - efficiency increased only on currents over 2a, which does not make sense in charging at 2.1a.
As a result, he replaced only the input capacitor to 470MCF 25V (to reduce its heating), suppressed 1.5KE6.8 suppressor to the output and secured the detail of the sealant. 
Now more about connecting
One of the helpers 
Included terminals under wire 2,5kV mm (blue). This is too thick wire for such charging - with a large margin of 0.75kV mm 
Just to take and clamp this wire in the terminals - it is impossible, because They just won't hold on.
But there is one trick - use additionally pin tips of the desired size (in this case, 0.75) 
The wire appealed first by them 
Then they lit into the terminals 
To specify polarity, additionally put on a red heat shrink on the plus wire 
And secured insulation 
Put on a ferrite interference filter 
Collected 
Or so 
So that Ferrit did not fight about the panel, wrapped it with a soft tape for staggered 
From the other end added the holder of the fuse 
Now you can put in the car instead of the cigarette lighter socket or cut a new installation hole.
I did so ...
Chose a place for installation 
Removed the protective case of PPP handles 
I placed the place with the removed nut and marker 
Drilled in contour 
Fired a semicircular file, cleaned sawdust with a vacuum cleaner that interferes from the inside the plastic cut off with a knife (the photo is not cut off) 
Put, dragged the nut 
Connected parallel to the first cigarette lighter socket
Usually, the connections solder, but here the currents are small and the banal twist is working fine 
Orthodox blue tape refused to stick out in the cold, I had to wind bourgeois 
And slept 
In the right places secured with tie 
Ready 
Everything went 2 hours
If something is not clear - ask.
Advantages: Appearance and quality of manufacture, not bad efficiency, honest 2,1A.
Disadvantages are described in the article.
Until recently, the USB connector in the car was considered almost luxury. There is no such connector and in many modern models, not to mention the cars released 10-15 years ago. In this article, I will tell you from the 12 volt onboard network to get 5 V for USB connector.
Many establish themselves in the car various devices With a meal from the cigarette lighter - a video recorder, GPS navigator, and even periodically you need to connect the charger for the phone. And because The cigarette lighter socket is one, buy a splitter, but this is not a way out of position, wires stretching through the dashboard not only distracting and interfere, can cause an accident.
As a rule, all these devices are designed for voltage 5 V (standard USB interface voltage), and the 12 V 5 volt converter is contained in the plug of each of these devices. I suggest to install one power source into the machine for 5 V and from it via USB, mini USB connectors to feed all the necessary devices.
Update from 07/30/2015.
Information from the article is relevant and now, but appeared alternative solution - Ready USB adapters With the connection to the network 12 V., we are not talking about adapters into the cigarette lighter, they were on the market and at the time of the first publication, but about independent converter devices.
The device consists of two modules. The external thread housing is made in the form of a cigarette lighter cartridge and a USB adapter with two connectors is inserted into it. The manufacturer declares the following characteristics:
- Output voltage: 5 V;
- Output current: 3 A.
On Aliexpress.
In contrast to the previous version this device It has a solid design and illumination with color to choose from: red, green, blue, orange, white.
Claimed characteristics:
- Input voltage: 12 - 32 V;
- Output voltage: 5 V;
- Output current: 1 A; 2.1 A.
On Aliexpress.
The adapter has a removable flange with holes for screws, which does not add to it aesthetics, but it can be installed without a flange. Note that USB connectors have a different output current. Characteristics:
- Input voltage: 12 - 24 V;
- Output voltage: 5 V;
- Output current: 1 A; 2.1 A.
On Aliexpress.
A constructive adapter differs from its round fellows thereby complicating installation. But externally has a pleasant look and should fit well into the interior of the car. Technical specifications:
- Input voltage: 12 - 24 V;
- Output voltage: 5 V;
- Output current: 3.1 A.
On Aliexpress.
These are now available USB adapters. They are easy to install. You can connect to the Cigarette Lighter Power Chain and, please have a full-fledged USB connector in the machine. But there is a small nuance - these adapters do not have a separate (cable) output to 5 V. This is important for constantly installed devices, such as the DVR. Thus, the old part of the article has not yet lost its relevance. Read!
Models for powering aircraft, auto, seemingly use UBEC. What it is?
Ubec.Universal Battery ELIMINATION CIRCUIT - This is a pulse device of on-board nutrition, at the output of which 5 or 6 V.
The choice fell on Turnigy 3a Ubec. With interference. Bought on hobbyking. Also available at Parcelier.
The Turnigy 3A UBEC converter has thermal protection. Shielded housing is used to suppress no interference. It has high efficiency - 92%, the minimum difference between the inlet and output voltages is only 1.22 V.
The heart of this converter is MP1593DN chip, datasheet can be downloaded at the end of the article.
Technical characteristics of the Turnigy 3A UBEC converter:
- Input voltage: 5.5 - 23 V;
- Output voltage: 5 V or 6 V, installed by the switch;
- Output current: 3 A;
- Dimensions (DHSHV): 51x16.6x8.5 mm;
- Weight: 11.5 g
That's what I got it (the bag has already revealed, I could not resist):
Included - instructions and, actually, UBEC itself. For comparison, put a USB USB flash drive:
The jumper has already been installed on 5 V, on the board there is a marking how to switch the output voltage to 5 or 6 V. I will remind you that we need 5V! The following two photos show this labeling. And also what is hidden under the screen. Thank you for these photos to Kirillu Rodionov with Park Plower, I did not have to disassemble my converter.
For additional protectionIf suddenly the converter fails, so that the output is not 12 V, installed Stabilitron 1N4734 (datasheet at the end of the article): Stabilization voltage 5.6 V; Power of scattering 1 W, stabilization current 45 mA. This set was bought on eBay:
Stabilodon turns on the scheme in parallel to exit, the cathode to the plus "+". The cathode on Stabilon is marked by a black stripe:
We solder the stabilion, the red wire "+", to it stripe. Additionally, I soldered short conductors with a cross section of 0.5 mm 2, then it will be easier to breed the scheme from them. Pre-dressed pieces of heat-suite tube:
After shrinkage with a hairdryer of individual pieces and a common tube, dressed in Stabilitron:
Since I need food for the DVR and for charger Phone, then two connections are needed - MINI USB plug and USB socket.
On eBay found a wonderful adapter - USB a female to mini USB b 5pin Male Left Angle Adapter. On the one hand, he has an angular MINI USB connector, and from another USB socket:
With tears in the eyes cut it in half:
Due to the illumination, the photos are made on different tables.
Red wire plus "+", and black minus "-". Just in case, I checked according to the connectors' Codes:
Took the wire with the laying of it behind the decorative elements of the cabin. For MINI USB connector, wire length is greater, because The DVR is set at the top of the windshield. For standard USB The wire is shorter, to bring it somewhere on the dashboard, until I definitely did not decide.
Connected wires, marked to not get confused. Similarly, dressed a heat shrink tube for each conductor and over one general:
Such two cables turned out:
Shed, gathered all together, observing polarity. This is how the final version of the mounting kit looks like:
It remains only to install this design to the machine, lay the wires and display the USB connectors in the right places. Connect must be connected via the fuse, it is possible through some regular from the unusual chain.
Many DVRs have the automatic on and off function when applying and disappeared. It is very convenient. Therefore, if you connect the converter to the cigarette lighter circuit, then this feature will work, because The cigarette lighter power depends on the position of the key in the ignition lock. But in this case, for example, to charge the phone from the new USB connector in the machine will not be very convenient, you need the ignition key to be in the castle.
If this problem is not relevant for you, connect UBEC to the cigarette lighter circuit. Otherwise, connect to the chain that does not depend on the ignition lock, and to save the video recorder's power on / off function. Use additionally relays:
The diagram shows a car relay in the general case, but it can be without a divorce diode and without normally closed contact 87a.
Summarize. The Turnigy 3A UBEC voltage converter is ideal for organizing USB connectors in the machine. It has been performed qualitatively, corresponds to the declared characteristics at an affordable price.
This converter provides 3 A at the output, which theoretically allows you to connect to it up to six devices. According to the specification by USB interfaceThe maximum current consumed by the device should be no more than 0.5 A, for USB 3.0 not more than 0.9 A.
list of files
There is a large range of automotive USB connectors connected to the car cigarette lighter. But it is not always convenient, moreover, with such a considerable amount USB devicesSo closely entered our lives, it would be quite good to have a stationary connector in the car, which does not occupy a place in the cigarette lighter socket. About one way to how it can be done, and will be told in this article.
Materials and tools are needed:
- standard USB connector with 12 volts;
- a piece of plastic;
- Carbon film;
- metal clamps and screed;
- soldering iron with a solder;
- knife;
- screwdriver;
- Sandpaper.
Step 1. Disassemble the connector.
From the standard connector, we will need only the electronic part of it, the case is not needed. Therefore, boldly disassemble it and get the board.
Step 2. Front panel.
Since the outlet will be mounted in a torpedo, make the entire case for the electronic part of the need not, it can be limited only to the front side. Cut out the piece of plastic we need to cut, inside it cut the rectangular hole for the connector itself. If there is a LED indicator, then we make a hole and under it. Plastic edges We pass by sandpaper.
For improvement external view You can take a piece of carbon film on top.
Step 3. Assembly.
Using a metal screed, the board with the connector is attached to the inside of the plastic panel. It is desirable that the connector entered the panel with a minimum gap.
Metal clamps are attached to the rear of the plastic panel:
The socket is installed on the place allotted and fixed by the clips:
And the device is ready to work: