CN211404010U

CN211404010U - Built-in power distribution box of LED display screen

Info

Publication number: CN211404010U
Application number: CN202020220313.9U
Authority: CN
Inventors: 薛云峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-09-01
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses a LED display screen built-in power supply distribution box, including trigger switch, be connected by the power supply of trigger switch control switching, be connected a plurality of delay circuit that is used for carrying out delay control, a plurality of relay that corresponds a plurality of delay circuit setting and be connected a plurality of LED display screen switching power supply by relay control with power supply by the power supply of trigger switch control switching, power supply is used for supplying power for delay circuit, opens trigger switch, and power supply supplies power for delay circuit, and a N delay circuit simultaneous working controls a N relay coil and switches on in proper order, and the contact of relay is closed in proper order, accomplishes multichannel delay and opens N way LED display screen switching power supply. When the power supply is powered on, the 555 timer starts to work, when the timing time is reached, a trigger signal is sent to the triode, the triode receives the trigger signal and then the electric appliance is powered on, the switch of the relay is closed, and the circuit of the LED display screen on a certain path is turned on.

Description

Built-in power distribution box of LED display screen

Technical Field

The utility model relates to a LED display screen power distribution technical field, concretely relates to LED display screen built-in power distribution box.

Background

Because science and technology is developed at a rapid pace, street or entertainment place all are provided with large-scale LED display screen usually, and every LED display screen comprises a plurality of little LED modules, and consequently it is big just to lead to the inside power supply starting current of LED display screen, and current common starting scheme has following several kinds: the starting is carried out manually and sequentially through multi-path air switch distribution, but the starting mode has the defects of complicated starting, large volume and complicated wiring. One is the starting of a multi-way contactor and a time relay, and the starting mode can be started by one key, but has the defects of large volume and high cost. One is starting the multi-way contactor and the multi-function card, and also has large volume and higher cost.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a built-in power distribution box of LED display screen to solve among the prior art because the great cost height of the big cost of various starter's volume and the great problem of cost that leads to of occupation of land.

In order to achieve the above object, the present invention provides the following technical solutions: a built-in power distribution box of an LED display screen is arranged in a screen body of the LED display screen; the built-in power distribution box of LED display screen includes: the LED display screen power supply comprises a trigger switch, a power supply, a plurality of delay circuits, a plurality of relays and a plurality of LED display screen switch power supplies, wherein the trigger switch, the power supply, the plurality of delay circuits, the relays and the LED display screen switch power supplies are sequentially connected, the relays are arranged corresponding to the plurality of delay circuits, the LED display screen switch power supplies are connected with the plurality of relays, the power supply is used for supplying power to the delay circuits, and the power supply is controlled to be switched on and; the LED display screen switching power supply is controlled by a relay.

Optionally, the trigger switch includes one or more of an internet of things switch, a special multifunctional card for an LED display screen, and a time control switch, wherein the internet of things switch includes one or more of a remote control switch, a time control switch, and a voice control switch. .

Optionally, the relay is a small volume relay.

Optionally, the delay circuit comprises an integrated circuit chip, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a triode and a diode, the integrated circuit chip is a 555 timer, 4 pins and 8 pins of the 555 timer are connected to the positive pole of a power supply, 2 pins and 6 pins of the 555 timer are connected to one end of the first resistor, one end of the first resistor is connected to the positive pole of the power supply, 3 pins of the 555 timer are connected to one end of the second resistor, 5 pins of the 555 timer are connected to one end of the third capacitor, the other end of the third capacitor is connected to the negative pole of the power supply, 1 pin of the 555 timer is connected to the negative pole of the power supply, the other end of the second resistor is connected to the base of the triode, and the collector of the triode is connected to the positive pole of the power supply, the one end at the relay is connected to the projecting pole of triode, the other end of relay is connected on the negative pole of power, the one end of second resistance is connected between 555 timer and the node of first ohmic connection, the other end of second resistance is connected on the negative pole of power, first resistance one end is connected between the positive pole and the negative pole of power, the anodal connection of diode is between the negative pole and the relay of power, the other end of diode is connected between the node that the projecting pole of triode and relay are coupled.

Optionally, the diode is selected from the diodes with model number IN 4184.

Optionally, the resistance of the first resistor is different within each delay circuit.

The utility model has the advantages of as follows: and opening the trigger switch, supplying power to the delay circuit by the power supply, controlling N relay coils to be sequentially electrified by N delay circuits to be simultaneously operated, and sequentially closing the contacts of the relay to finish the multipath delay opening of N paths of LED display screen switching power supplies. After a power supply is powered on, the 555 timer starts to work, when the timing time is reached, a trigger signal is sent to the triode, the triode receives the trigger signal and then the electric appliance is powered on, the switch of the relay is closed, and the circuit of a certain path of LED display screen is turned on. Because trigger switch can carry out the relevance with the APP of smart mobile phone, consequently can realize that smart mobile phone APP uses conveniently, and a key opens and stops, cell-phone APP remote control opens and stops, long-range opening and stops, the time control opens and stops, intelligent pronunciation and open and stop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of an overall power distribution box built in an LED display screen according to the present invention;

fig. 2 is a schematic diagram of a delay circuit of a built-in power distribution box of an LED display screen according to the present invention;

in the figure, 1, trigger switch; 2. a switching power supply; 3. n delay circuits; 4. n paths of small-volume relay coils; 5. n paths of LED display screen switching power supplies; 6. n way normally open relay contacts.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the present disclosure. The components of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. .

Fig. 1 shows a built-in power distribution box for an LED display screen provided by the present invention, which is disposed in a screen body of the LED display screen;

the built-in power distribution box of LED display screen includes: the LED display screen power supply comprises a trigger switch, a power supply, a plurality of delay circuits, a plurality of relays and a plurality of LED display screen switch power supplies, wherein the trigger switch, the power supply, the plurality of delay circuits, the relays and the LED display screen switch power supplies are sequentially connected, the relays are arranged corresponding to the plurality of delay circuits, the LED display screen switch power supplies are connected with the plurality of relays, the power supply is used for supplying power to the delay circuits, and the power supply is controlled to be switched on and; the LED display screen switching power supply is controlled by a relay.

The utility model discloses in, delay circuit sets up to N time delay circuit of group, every group time delay circuit correspondence is provided with a little volume relay, little volume relay also sets up to N promptly, wherein every little volume relay by with this little volume relay's time delay circuit control break-make, little volume relay's contact is used for controlling the break-make of LED display screen switching power supply, every little volume relay all controls the power supply of LED display screen of the same kind, be provided with the power supply of N way LED display screen promptly.

The utility model discloses in, trigger switch includes that thing networking switch, special multi-functional card of LED display screen and time control switch etc. and thing networking switch can adopt the remote control to open and stop, long-range opening and stopping, the time control opens and stops and intelligent speech control opens and stops modes such as, specifically adopt remote switch, remote control switch, time control switch and speech control switch etc. because above-mentioned part is prior art, and there have been a lot of comparatively complete products in market, not add in this embodiment any more and give unnecessary redundant description, foretell thing networking switch aims at controlling power supply and gives the power supply of delay circuit, also can choose ordinary switch for use.

Taking one of the delay circuits as an example, as shown in fig. 2, the delay circuit includes an integrated circuit chip, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a transistor and a diode, wherein the integrated circuit chip is preferably a 555 timer, 4 pins and 8 pins of the 555 timer are commonly connected to the positive pole of a power supply, 2 pins and 6 pins of the 555 timer are commonly connected to one end of the first resistor, one end of the first resistor is connected to the positive pole of the power supply, 3 pins of the 555 timer are connected to one end of the second resistor, 5 pins of the 555 timer are connected to one end of the third capacitor, the other end of the third capacitor is connected to the negative pole of the power supply, 1 pin of the 555 timer is directly connected to the negative pole of the power supply, the other end of the second resistor is connected to the base of the transistor, the collector of the transistor is connected to the positive pole of the power supply, the one end at the relay is connected to the projecting pole of triode, and the other end of relay is connected on the negative pole of power, and the one end of second resistance is connected between 555 timer and the node of first ohmic connection, and the other end is connected on the negative pole of power, and first resistance one end is connected between the positive pole and the negative pole of power, and the positive pole of diode is connected between the negative pole and the relay of power, and the other end of diode is connected between the projecting pole of triode and the node that the relay is coupled.

The utility model discloses IN, the model is IN 4184's diode for the diode, and 4.7 k's resistance is chooseed for use to the second resistance, first resistance control delay time, and the resistance of the first resistance of every delay circuit is all different consequently, IN this embodiment, owing to need control a plurality of relays and open IN proper order, consequently, the utility model discloses IN, first resistance adds equivalent resistance IN proper order, preferably 20k, 40k, 60k, 80k etc.. And opening the trigger switch, supplying power to the delay circuit by the power supply, controlling N relay coils to be sequentially electrified by N delay circuits to be simultaneously operated, and sequentially closing the contacts of the relay to finish the multipath delay opening of N paths of LED display screen switching power supplies. When the power supply is powered on, the 555 timer starts to work, when the timing time is reached, a trigger signal is sent to the triode, the triode receives the trigger signal and then the electric appliance is powered on, the switch of the relay is closed, and the circuit of the LED display screen on a certain path is turned on.

Because the N paths of small-volume relays are adopted, the whole size is small, the screen body is internally arranged, the branch circuits are free from wiring, the key start-stop switch is arranged beside the screen body, wiring is saved, the appearance is attractive, and the start-stop is convenient and visual. Because the control of the delay circuit is adopted, the power is sequentially switched on to automatically delay so as to avoid heavy current impact. Because thing networking switch can carry out the relevance with the APP of smart mobile phone, consequently can realize that smart mobile phone APP uses conveniently, and a key opens and stops, cell-phone APP remote control opens and stops, long-range opening and stop, the time control opens and stops, intelligent pronunciation and open and stop.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A built-in power distribution box of an LED display screen is characterized in that the built-in power distribution box of the LED display screen is arranged in a screen body of the LED display screen;

2. The built-in power distribution box of the LED display screen according to claim 1, wherein the trigger switch comprises one or more of an Internet of things switch, a special multifunctional card for the LED display screen and a time control switch, and the Internet of things switch comprises one or more of a remote control switch, a time control switch and a voice control switch.

3. The built-in power distribution box of the LED display screen as claimed in claim 1, wherein the relay is a small-sized relay.

4. The built-in power distribution box of an LED display screen according to claim 1, wherein the delay circuit comprises an integrated circuit chip, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a triode and a diode, the integrated circuit chip is a 555 timer, 4 pins and 8 pins of the 555 timer are connected to the positive pole of a power supply, 2 pins and 6 pins of the 555 timer are connected to one end of the first resistor, one end of the first resistor is connected to the positive pole of the power supply, 3 pins of the 555 timer are connected to one end of the second resistor, 5 pins of the 555 timer are connected to one end of the third capacitor, the other end of the third capacitor is connected to the negative pole of the power supply, 1 pin of the 555 timer is connected to the negative pole of the power supply, and the other end of the second resistor is connected to the base of the triode, the collecting electrode of triode is connected on the positive pole of power, the one end at the relay is connected to the projecting pole of triode, the other end of relay is connected on the negative pole of power, the one end of second resistance is connected between 555 timer and the node of first ohmic connection, the other end of second resistance is connected on the negative pole of power, first resistance one end is connected between the positive pole and the negative pole of power, the anodal of diode is connected between the negative pole and the relay of power, the other end of diode is connected between the projecting pole of triode and the node that the relay is coupled.

5. The built-IN power distribution box of an LED display screen as claimed IN claim 4, wherein the diode is selected from the group consisting of IN4184 type diodes.

6. The built-in power distribution box of an LED display screen of claim 5, wherein the first resistor has a different resistance value within each delay circuit.