RU222165U1 - POWER SUPPLY FOR LED LIGHTS - Google Patents

Abstract

The utility model relates to electrical engineering, namely lighting engineering, to power sources (drivers) of LEDs used for lighting. The technical result of the claimed utility model is to provide the ability to replace the entire safety assembly without re-soldering its elements. The power supply for LED lamps contains: a housing with mounting slots, inside which there is an electronic circuit for converting current, controlling and powering LED lamps, which has two electrical blocks, one of which has three independent contacts (input), and the other with two independent contacts (output ), while after the input there is a mating three-pin pin connector, on which a safety assembly is installed via the main three-pin pin connector. The safety unit is made in the form of a printed circuit board with a varistor installed on it, installed in parallel with the rest of the electronic circuit, a resistor installed in series with the rest of the electronic circuit and acting as a fuse against network overvoltage, and the main three-pin pin connector. The main three-pin male connector in combination with the corresponding three-pin male connector makes it possible to change the entire safety assembly without re-soldering it, and the printed circuit board with the housing guarantees rigid fixation and joint operation of the elements of the safety assembly, as well as protecting the user from exposed contacts. 4 ill.

Description

The utility model relates to lighting technology, namely to power sources (drivers) of LEDs used for lighting.

Devices are known (https://kim2b.ru/katalog/istochniki-pitaniya/sts-30-350-50-1-m-b-ip20-001-02/; https://ledgold.ru/blok-pitaniya-arv- sp24060-long-pfc-a-24v-2-5a-60w-arlight-0255941), containing a housing with mounting slots, inside which there is an electronic circuit for converting current, controlling and powering LED lamps, having two electrical blocks, one of which with three independent contacts (input), and the other with two independent contacts (output), while after the input there is a safety unit consisting of a varistor installed in parallel with the rest of the electronic circuit, and a resistor installed in series with the rest of the electronic circuit and acting as a fuse from network overvoltage. Elements of the safety assembly often fail due to disturbances in AC electrical networks, which ultimately leads to the need to carry out work to restore the functionality of the entire device, even if the remaining elements of the electrical circuit remain unharmed, while the restoration work itself, as a rule, are not produced locally due to their labor intensity and the device is sent to the manufacturing plant, which takes a lot of time.

The disadvantage of such devices is the impossibility of quickly changing burnt-out elements of the safety assembly, due to the fact that the elements of the safety assembly are soldered onto the electronic circuit of the device.

The task to be solved by the proposed utility model is to eliminate the above-described drawback.

The technical result that makes it possible to solve the problem is to ensure the possibility of replacing the entire safety assembly without re-soldering its elements.

The technical result is achieved by the fact that the power supply for LED lamps contains a housing with mounting slots, inside of which there is an electronic circuit for converting current, controlling and powering LED lamps, having two electrical blocks, one of which has three independent contacts (input), and the other - with two independent contacts (output), while after the input there is a safety unit consisting of a varistor installed in parallel with the rest of the electronic circuit, and a resistor installed in series with the rest of the electronic circuit and acting as a fuse against network overvoltage, additionally containing a mating three-pin pin connector after the device enters, and the safety unit is made in the form of a printed circuit board with a housing and a varistor, a resistor and a main three-pin pin connector soldered on it.

The main three-pin male connector in combination with the corresponding three-pin male connector provides the ability to change the entire safety assembly without re-soldering it, while the printed circuit board with the housing guarantees rigid fixation and joint operation of the elements of the safety assembly, as well as protecting the user from exposed contacts.

The technical result is illustrated by drawings:

in fig. 1 - general view of the power supply for LED lamps with a local section;

in Fig. 2 - schematic diagram of the power supply for LED lamps;

in Fig. 3 - general view of the power supply for LED lamps with the safety assembly removed and a local section;

in Fig. 4 - general view of the safety assembly with a local section.

The power supply for LED lamps contains: a housing 1 with mounting slots 2, inside of which there is an electronic circuit 3 for converting current, controlling and powering LED lamps (not shown in the drawing), which has two electrical blocks, one of which has three independent contacts and is input 4 , and the other - two independent contacts and is output 5, while after input 4 there is a corresponding three-pin pin connector 6, and the safety unit 7 is made in the form of a printed circuit board 8 with a housing 12 and a varistor 9 soldered on it, installed parallel to the rest of the electronic circuit , a resistor 10 in series with the rest of the electronic circuit, and a main three-pin male connector 11.

The power supply for LED lamps works as follows: housing 1 is fixed through mounting slots 2 in a convenient place near the LED lamps (not shown in the drawing), after which an alternating mains voltage, for example 220 V, is supplied to input 4, represented by an electrical block with three independent contacts. , as a result of which the electronic circuit 3 begins to operate and convert current, as well as control and power LED lamps (not shown in the drawing) connected to output 5, represented by an electrical block with two independent contacts.

When an overvoltage occurs in the AC network, the elements of the safety unit 7 connected through its main three-pin pin connector 11 with the corresponding three-pin pin connector 6, represented by a varistor 9 installed in parallel with the rest of the electronic circuit, and a resistor 10 installed in series with the rest of the electronic circuit, and soldered on the printed circuit board 8 with housing 12, react to changes in voltage and burn out, as a result of which the electrical circuit is broken and the rest of the electronic circuit 3 and the LED lamps (not shown in the drawing) remain unharmed. Next, the safety unit 7, thanks to the detachable three-pin pin connectors 6 and 11, is disconnected from the main electronic circuit 3 and replaced with a similar serviceable unit (not shown in the drawing).

Claims (1)

A power supply for LED lamps, containing a housing with mounting slots, inside which there is an electronic circuit for converting current, controlling and powering LED lamps, having two electrical blocks, one of which is an input and has three independent contacts, and the other is an output and has two independent contacts , while after the input there is a safety unit consisting of a varistor installed in parallel with the rest of the electronic circuit, and a resistor installed in series with the rest of the electronic circuit and acting as a fuse against network overvoltage, characterized in that it contains a mating three-pin pin connector after the device input, and the safety unit is made in the form of a printed circuit board with a varistor, a resistor and a main three-pin pin connector soldered on it.

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