LED display screen ultrathin power supply capable of being automatically powered off

Abstract

The utility model relates to the technical field of LED display screen power supplies, in particular to an LED display screen ultra-thin power supply capable of being automatically powered off, which comprises an LED display screen ultra-thin power supply body, a cover plate is arranged at the upper end of the LED display screen ultra-thin power supply body, an automatic power-off structure is arranged at the upper end of the cover plate, the automatic power-off structure comprises a fixing box, side plates are symmetrically arranged on the side walls of the fixing box, and the side plates are arranged on the side walls of the fixing box. The two side plates are attached to the side wall of the LED display screen ultra-thin power source body, a mounting plate is arranged in the fixing box, a voltage sensor, a voltage relay and a switch are arranged at the upper end of the mounting plate, and a red indicator lamp is fixedly mounted on the surface of the fixing box. Therefore, the voltage change of the ultrathin power supply body of the LED display screen can be detected, and when the voltage is unstable, the voltage sensor transmits a signal to the voltage relay to control the switch to be turned on or turned off, so that the unstable voltage can cause damage to a load, and the protection performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display screen power supply technical field especially relates to a kind of LED display screen ultra -thin power supply of automatic power-off. BACKGROUND

[0002] LED display screen ultra -thin power supply is a kind of power supply equipment specially designed for LED display screen, its main function is to convert the input alternating current (AC) into stable direct current (DC), provides suitable electric energy for the light emitting diode of LED display screen, to ensure that LED display screen can work normally, this kind of power supply is designed on the emphasis of small and light appearance, to adapt to the requirement of LED display screen to space, especially in some occasions with limited installation space, such as indoor ultra -thin LED display screen etc.

[0003] At present, the existing device (such as announcement number: CN207573768U), discloses a kind of LED display screen power box, the first cover of this power supply one side is connected by detachable hinge structure with the first opening of power box frame body One side edge hinge connection, the other side is locked by hasp structure with the first opening of power box frame body Another side edge connection, the edge of its second cover is locked by a plurality of spring screws with the edge of the second opening of power box frame body, in this way, when the LED display screen power box is maintained, it can be opened by releasing the hasp structure to maintain the back in the form of loose leaf by opening the first cover, also can be maintained in front by releasing spring screw and removing the second cover as a whole;

[0004] But in the process of implementation of the above technical scheme, it is found that at least the following technical problems exist: But the power supply in use, since its power supply in power supply process, in the case of grid change or grid failure, it is easy to cause LED display screen power voltage instability, power supply at this time is easy to cause LED display screen power supply damage, the power supply lacks the disconnection structure of LED display screen, so the protective property of LED display screen ultra -thin power supply is insufficient, and it needs to be improved. UTILITY MODEL CONTENT

[0005] (One) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a kind of LED display screen ultra -thin power supply of automatic power-off, solves the technical problem that the protective property of existing power supply is insufficient.

[0007] (Two) technical scheme

[0008] To achieve the above object, the utility model is realized by the following technical scheme:

[0009] An automatic power-off LED display screen ultra-thin power supply, including LED display screen ultra-thin power supply body, the upper end of the LED display screen ultra-thin power supply body is equipped with a cover plate;

[0010] The upper end of the cover plate is equipped with an automatic power-off structure;

[0011] The automatic power-off structure includes a fixed box, the side walls of the fixed box are symmetrically equipped with side plates, both of the side plates are attached to the side walls of the LED display screen ultra-thin power supply body, the inside of the fixed box is equipped with a mounting plate, the upper end of the mounting plate is respectively equipped with a voltage sensor, a voltage relay and a switch.

[0012] Preferably, a red indicator light is fixedly installed on the surface of the fixed box, and a green indicator light is fixedly installed on the surface of the fixed box.

[0013] Preferably, a first through groove is formed through the side wall of the fixed box, and a protective plate is threadedly installed on the upper end of the fixed box.

[0014] Preferably, a second through groove is formed through the inside of the cover plate, a plurality of fixed screws are threadedly installed between the LED display screen ultra-thin power supply body and the cover plate, both of the side plates are threadedly installed with one of the fixed screws, a plurality of heat dissipation grooves are arranged on the side walls of the LED display screen ultra-thin power supply body, and both of the side plates are located above the heat dissipation grooves.

[0015] (Three) beneficial effects

[0016] I. By arranging the voltage sensor, the voltage relay and the switch, the voltage change of the LED display screen ultra-thin power supply body can be detected, when the voltage is unstable, the voltage sensor will transmit a signal to the voltage relay to control the opening or closing of the switch, so that the unstable voltage does not cause damage to the load, and the protection is improved.

[0017] II. By removing one of the fixed screws, the side plate of the fixed box can be clamped on the outside of the LED display screen ultra-thin power supply body, the threaded hole of the side plate is aligned with the removed fixed screw, and then the side plate can be fixed on the LED display screen ultra-thin power supply body by using the fixed screw, so that the installation can be completed on the basis of the existing, and the modification cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented, the following preferred embodiments of the present application are described in detail with reference to the drawings.

[0019] Figure 1 It is a perspective view of the present application;

[0020] Figure 2 The utility model discloses a three -dimensional connection explosion structural drawing of cover plate;

[0021] Figure 3 The utility model discloses a three -dimensional connection explosion structural drawing of mounting plate.

[0022] Figure 4 The utility model discloses a three -dimensional connection explosion structural drawing of mounting plate.

[0023] Legend: 11, LED display screen ultra -thin power supply body, 12, cover plate, 13, fixed box, 14, side plate, 15, mounting plate, 16, voltage sensor, 17, voltage relay, 18, switch, 19, red indicating lamp, 21, green indicating lamp, 22, first through slot, 23, protection plate, 24, second through slot, 25, fixed screw, 26, heat dissipation groove. DETAILED DESCRIPTION

[0024] The embodiment of the application provides a LED display screen ultra -thin power supply that can automatically power off, effectively solves the technical problem of insufficient protection of the existing power supply, by setting a voltage sensor, a voltage relay and a switch, the voltage change of the LED display screen ultra -thin power supply body can be detected, when the voltage is unstable, the voltage sensor will transmit a signal to the voltage relay to control the opening or closing of the switch, so that the unstable voltage can not damage the load, improve the protection, and by removing one of the fixed screws, the side plate on the fixed box can be clamped to the position outside the LED display screen ultra -thin power supply body, and the threaded hole of the side plate is aligned with the removed fixed screw, then the staff can fix the side plate on the LED display screen ultra -thin power supply body by using the fixed screw, the installation is completed, the existing basis is installed, and the modification cost is reduced.

[0025] EMBODIMENT

[0026] As shown in Figure 1 - Figure 4 The technical scheme in the embodiment of the application effectively solves the technical problem of insufficient protection of the existing power supply, and the general idea is as follows:

[0027] In view of the problems in the prior art, the utility model provides a LED display screen ultra -thin power supply that can automatically power off, including LED display screen ultra -thin power supply body 11, LED display screen ultra -thin power supply body 11 upper end part is equipped with cover plate 12;

[0028] The upper end of the cover plate 12 is provided with an automatic power-off structure.

[0029] The automatic power-off structure comprises a fixed box 13, symmetrically provided with side plates 14 on the side walls of the fixed box 13, both of which are attached to the side walls of the LED display screen ultra-thin power supply body 11, the fixed box 13 is internally provided with a mounting plate 15, the upper end of the mounting plate 15 is respectively provided with a voltage sensor 16, a voltage relay 17 and a switch 18, by setting the voltage sensor 16, the voltage relay 17 and the switch 18, the voltage change of the LED display screen ultra-thin power supply body 11 can be detected, when the voltage is unstable, the voltage sensor 16 will transmit a signal to the voltage relay 17 to control the opening or closing of the switch 18, so that the unstable voltage does not damage the load, and the protection is improved.

[0030] A red indicator light 19 is fixedly installed on the surface of the fixed box 13, and a green indicator light 21 is fixedly installed on the surface of the fixed box 13, by setting the red indicator light 19 and the green indicator light 21, the current state of the automatic power-off structure can be observed by the staff.

[0031] A first through slot 22 is provided through the side wall of the fixed box 13, a protective plate 23 is threadedly installed on the upper end of the fixed box 13, and a second through slot 24 is provided through the inside of the cover plate 12, by setting the first through slot 22 and the second through slot 24, the staff can thread through the first through slot 22 and the second through slot 24 when wiring, which is convenient for connection.

[0032] A plurality of fixing screws 25 are threadedly installed between the LED display screen ultra-thin power supply body 11 and the cover plate 12, the two side plates 14 are threadedly installed with one of the fixing screws 25, a plurality of heat dissipation grooves 26 are provided on the side wall of the LED display screen ultra-thin power supply body 11, and the two side plates 14 are located above the heat dissipation grooves 26, in use, one of the fixing screws 25 is removed, then the side plate 14 on the fixed box 13 is clamped to the position outside the LED display screen ultra-thin power supply body 11, the threaded hole of the side plate 14 is aligned with the removed fixing screw 25, then the staff can fix the side plate 14 on the LED display screen ultra-thin power supply body 11 by using the fixing screw 25, that is, the installation is completed, so that the installation is carried out on the basis of the existing, thereby reducing the modification cost.

[0033] Working principle:

[0034] Firstly, when the fixed box 13 needs to be installed, one of the fixing screws 25 is removed, then the side plate 14 on the fixed box 13 is clamped to the position outside the LED display screen ultra-thin power supply body 11, the threaded hole of the side plate 14 is aligned with the removed fixing screw 25, then the staff can fix the side plate 14 on the LED display screen ultra-thin power supply body 11 by using the fixing screw 25, that is, the installation is completed;

[0035] Second, when wiring, voltage sensor 16 needs to be connected with the phase line and neutral line of LED display screen ultra-thin power body 11, the input end of voltage relay 17 is connected with the output end of voltage sensor 16, so as to receive the voltage signal and its change condition detected by voltage sensor 16, the output end of voltage relay 17 should be connected to the control circuit part of switch 18, in the case of stable power voltage, voltage sensor 16 continuously monitors the voltage of power line, at this time, since the voltage is in a stable state, the signal output by voltage sensor 16 is in a normal range, this signal is transmitted to voltage relay 17, voltage relay 17 judges according to the preset normal voltage range, considers that the current voltage is normal, does not trigger any action, switch 18 keeps closed state, green indicator light 21 is always on, LED display screen ultra-thin power body 11 can work normally, when the power voltage is unstable, at this time, voltage sensor 16 detects abnormal change of voltage, the signal output by voltage sensor 16 also changes accordingly, this abnormal signal is transmitted to voltage relay 17, after voltage relay 17 receives the abnormal signal from voltage sensor 16, immediately analyzes and processes the signal, if the signal exceeds the preset voltage stability range, the internal circuit of voltage relay 17 triggers action, for controlling the state of switch 18, after receiving the control signal from voltage relay 17, switch 18 is quickly disconnected, cutting off the connection between power supply and LED display screen ultra-thin power body 11, to prevent unstable voltage from causing damage to the load, red indicator light 19 is always on, green indicator light 21 is off.

[0036] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An ultra-thin power supply for an LED display screen with automatic power-off capability, comprising an ultra-thin power supply body (11) for the LED display screen, wherein a cover plate (12) is provided at the upper end of the ultra-thin power supply body (11), characterized in that... ； The upper end of the cover plate (12) is provided with an automatic power-off structure; The automatic power-off structure includes a fixing box (13), and side plates (14) are symmetrically arranged on the side wall of the fixing box (13). Both side plates (14) are attached to the side wall of the ultra-thin power supply body (11) of the LED display screen. An installation plate (15) is provided inside the fixing box (13).

2. The ultra-thin power supply for an LED display screen with automatic power-off capability as described in claim 1, characterized in that, The upper end of the mounting plate (15) is provided with a voltage sensor (16), a voltage relay (17), and a switch (18).

3. The ultra-thin power supply for an LED display screen with automatic power-off capability as described in claim 2, characterized in that, A red indicator light (19) is fixedly installed on the surface of the fixing box (13); A green indicator light (21) is fixedly installed on the surface of the fixing box (13).

4. The ultra-thin power supply for an LED display screen with automatic power-off capability as described in claim 3, characterized in that, The fixing box (13) has a first through groove (22) through its side wall; The upper end of the fixing box (13) is threaded with a protective plate (23).

5. The ultra-thin power supply for an LED display screen with automatic power-off capability as described in claim 4, characterized in that, The cover plate (12) has a second through groove (24) inside; Among them, multiple sets of fixing screws (25) are threadedly installed between the ultra-thin power supply body (11) of the LED display screen and the cover plate (12).

6. The ultra-thin power supply for an LED display screen with automatic power-off capability as described in claim 5, characterized in that, The two side plates (14) are threadedly mounted with one set of fixing screws (25); The ultra-thin power supply body (11) of the LED display screen has multiple heat dissipation grooves (26) on its side wall, and the two side plates (14) are located above the heat dissipation grooves (26).

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