CN220022226U - Power supply system of LED display screen and LED display screen - Google Patents

Abstract

The utility model relates to a power supply system of an LED display screen and the LED display screen, wherein the power supply system comprises: the system comprises a first bus-bar deconcentrator, a second bus-bar deconcentrator, a buck converter and a low-voltage deconcentrator; the input end of the first bus-bar deconcentrator is connected with a mains supply, the output end of the first bus-bar deconcentrator comprises a first output end and a second output end which are arranged in parallel, and the first output end is connected with the input end of one second bus-bar deconcentrator; the output end of the second bus-bar deconcentrator comprises a third output end and a fourth output end which are arranged in parallel, and the third output end is connected with the input ends of other second bus-bar deconcentrators; the second output end and the fourth output end are connected with the input end of the buck converter; the output end of the buck converter is connected with the input end of the low-voltage deconcentrator; the output end of the low-voltage deconcentrator comprises a plurality of groups of wiring terminals which are arranged in parallel, and each group of wiring terminals is used for connecting one LED box body to supply power to the LED box body. The power supply system structure provided by the utility model has better flexibility.

Description

Power supply system of LED display screen and LED display screen

Technical Field

The utility model relates to the technical field of LED display screens, in particular to a power supply system of an LED display screen and the LED display screen.

Background

An LED display screen is an electronic display device using LEDs (light emitting diodes) as light sources. In order to facilitate installation and to accommodate diversified shape and size requirements, LED screens are typically spliced from a plurality of LED boxes. The LED box body is internally provided with LED modules, each LED module comprises an array formed by a plurality of LEDs arranged on a printed circuit board and a driving circuit, and the driving circuit obtains electric energy through a power supply system to light the LEDs.

The power supply system of the LED display screen generally takes power from the mains supply, and uses a buck converter to convert the mains supply voltage into the rated voltage of the LED box and then supply power to the LED box. Because the LED display screens are different in size and the number of the used LED boxes is different, and the total energy consumption is also different, the power supply system of the existing LED display screen needs to calculate the total power according to the power and the number of the currently installed LED boxes so as to configure the buck converter of the corresponding parameters. The configuration of the power supply system is not flexible enough, and when the LED box body is needed to be temporarily increased to enlarge the display area of the LED display screen in the face of an application scene of temporarily changing the size of the LED display screen, the buck converter with higher rated power needs to be integrally replaced so as to avoid overload or faults such as non-brightness or non-brightness of the LED display screen. Furthermore, the overall replacement of the buck converter also means that it is necessary to remove and install a new buck converter or power supply system that is currently connected to the LED box, and to connect the new buck converter or power supply system to the LED box one by one, which also increases the workload of the installer.

Disclosure of Invention

First, the technical problem to be solved

In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides a power supply system for an LED display screen and an LED display screen, which solve the technical problem of poor flexibility of the power supply system for the existing LED display screen.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

in a first aspect, an embodiment of the present utility model provides a power supply system for an LED display screen, where the LED display screen includes a plurality of LED boxes for displaying pictures, and the power supply system includes: a first bus-bar splitter, at least one second bus-bar splitter, at least one buck converter, and at least one low-voltage splitter;

the input end of the first bus-bar deconcentrator is connected with a mains supply, the output end of the first bus-bar deconcentrator comprises a first output end and a second output end which are arranged in parallel, and the first output end is connected with the input end of one second bus-bar deconcentrator;

the output end of the second bus-bar deconcentrator comprises a third output end and a fourth output end which are arranged in parallel, and the third output end is used for being connected with the input ends of other second bus-bar deconcentrators;

the second output end and the fourth output end are respectively connected with the input end of a buck converter; the output end of the buck converter is connected with the input end of the low-voltage deconcentrator;

the output end of the low-voltage deconcentrator comprises a plurality of groups of wiring terminals which are arranged in parallel, and each group of wiring terminals is used for being connected with one LED box body to supply power to the LED box body.

Optionally, the input end of the second bus-bar deconcentrator is set to be in a plug structure, the third output end of the second bus-bar deconcentrator is set to be in a socket structure, and the third output end of one second bus-bar deconcentrator is spliced with the input ends of other second bus-bar deconcentrators.

Optionally, the second busbar deconcentrator comprises a box body, a plug structure fixedly arranged on a first side wall of the box body, and a socket structure fixedly arranged on a second side wall of the box body, and the first side wall and the second side wall are oppositely arranged;

the plug structure comprises a first plug sheet and a second plug sheet which are fixedly arranged on the first side wall, and the socket structure comprises a first plug seat and a second plug seat which are fixedly arranged on the second side wall; the first inserting piece is electrically connected with the first inserting seat, and the second inserting piece is electrically connected with the second inserting seat.

Optionally, the fourth output end of the second busbar deconcentrator includes a first binding post and a second binding post fixedly arranged on the third side wall of the box body, the first binding post is electrically connected between the first insertion sheet and the first insertion seat, and the second binding post is electrically connected between the second insertion sheet and the second insertion seat;

the first binding post and the second binding post are electrically connected with the input end of the buck converter.

Optionally, the power supply system further includes a power supply box, the first bus-bar deconcentrator, the second bus-bar deconcentrator, the buck converter and the low-voltage deconcentrator are disposed inside the power supply box, and an output end of the low-voltage deconcentrator is electrically connected with a power input end of the LED box through a remote power line.

Optionally, the power supply system further includes a power supply box, the first bus-bar deconcentrator, the second bus-bar deconcentrator and the buck converter are arranged inside the power supply box, the low-voltage deconcentrator is arranged on the LED box, and an output end of the buck converter is electrically connected with an input end of the low-voltage deconcentrator through a remote power line.

Optionally, the buck converter is a PWM switching power supply.

In a second aspect, an embodiment of the present utility model further provides an LED display screen, including a plurality of LED boxes for displaying pictures, and a power supply system for supplying power to the LED boxes, where the power supply system includes the power supply system in the first aspect.

Optionally, the LED boxes are arranged in an array, the output end of each low-voltage deconcentrator includes 4 groups of connection terminals, and the 4 groups of connection terminals of each low-voltage deconcentrator are electrically connected to the power input ends of the adjacent 4 LED boxes in a one-to-one correspondence manner.

(III) beneficial effects

The utility model provides a power supply system of an LED display screen, which comprises a first bus-bar deconcentrator directly connected with a mains supply, and a second bus-bar deconcentrator connected with a second output end of the first bus-bar deconcentrator in parallel through a first output end of the first bus-bar deconcentrator, wherein a third output end based on the second bus-bar deconcentrator can be connected with other second bus-bar deconcentrators in parallel, and a set of buck converter and a set of low-voltage deconcentrators can be respectively connected with a second output end of the first bus-bar deconcentrator and a fourth output end of each second bus-bar deconcentrator so as to supply power to an LED box. Based on the modularized arrangement, the power supply system structure of the LED display screen provided by the utility model is more flexible, and an installer can increase or decrease the number of the second bus-bar deconcentrator, the corresponding buck converter and the low-voltage deconcentrator at will according to the number of the LED boxes on site, so that the number of the second bus-bar deconcentrator, the corresponding buck converter and the low-voltage deconcentrator are matched with the number of the required LED boxes, and the workload caused by overall replacement of the buck converter is reduced.

Furthermore, the second bus-bar deconcentrators can be spliced through the plug structure and the socket structure, and compared with the connection mode of an electric wire-wiring column in the prior art, the working efficiency of installers can be further improved, and the installation time is saved.

Drawings

Fig. 1 is a schematic structural diagram of a power supply system of an LED display screen according to an embodiment;

fig. 2 is a schematic structural diagram of a second busbar deconcentrator provided in the embodiment.

[ reference numerals description ]

1. A first busbar deconcentrator;

2. a second bus-bar deconcentrator; 20. a case body; 201. a first sidewall; 202. a second sidewall; 203. a third sidewall; 21. a plug structure; 211. a first insertion piece; 212. a second insertion piece; 22. a socket structure; 221. a first socket; 222. a second socket; 23. a first terminal; 24. a second binding post;

3. a buck converter;

4. a low voltage deconcentrator;

5. an LED box;

6. a mains supply.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

In order to better understand the above technical solution, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 1, the present utility model provides a power supply system for an LED display screen, the LED display screen including a plurality of LED housings 5 for displaying pictures, the power supply system comprising: a first busbar splitter 1, at least one second busbar splitter 2, at least one buck converter 3 and at least one low-voltage splitter 4.

The input end of the first bus-bar deconcentrator 1 is used for being connected with a mains supply 6, the output end of the first bus-bar deconcentrator 1 comprises a first output end and a second output end which are arranged in parallel, and the first output end is used for being connected with the input end of one second bus-bar deconcentrator 2; the output end of the second bus-bar deconcentrator 2 comprises a third output end and a fourth output end which are arranged in parallel, and the third output end is used for being connected with the input ends of other second bus-bar deconcentrators 2.

The second output end and the fourth output end are respectively connected with the input end of one buck converter 3; the output end of the buck converter 3 is connected with the input end of the low-voltage deconcentrator 4; the output end of the low-voltage deconcentrator 4 comprises a plurality of groups of wiring terminals which are arranged in parallel, and each group of wiring terminals is used for connecting one LED box 5 to supply power to the LED box.

Wherein, a buck converter 3 and a low voltage deconcentrator 4 are a set for converting the mains voltage output by the second output terminal or the fourth output terminal into the low voltage required by the multi-path LED box 5. In particular, the buck converter 3 may be a PWM (pulse width modulation) switching power supply to adjust the low voltage of its output terminal based on the frequency of the PWM signal, which may employ existing devices. The low-voltage splitter 4, sometimes also referred to as a junction box or junction box, is used to split the low-voltage into multiple paths in parallel to supply power to the plurality of LED housings 5 via the connection terminals.

Based on the above modularized arrangement, the power supply system structure of the LED display screen provided by the utility model is more flexible, and an installer can increase or decrease the number of the second bus-bar deconcentrator 2 and the corresponding buck converter 3 and the low-voltage deconcentrator 4 at will according to the number of the LED boxes 5 on site, so that the LED display screen is matched with the required number of the LED boxes 5, and the workload caused by integrally replacing the buck converter 3 is reduced. In a specific application, a set of the second busbar splitter 2, the buck converter 3 and the low voltage splitter 4 may also be provided as a prefabricated whole, thereby further reducing the effort for installing the power supply system.

In a preferred implementation manner of this embodiment, in order to further improve the installation efficiency of the power supply system, the input end of the second bus-bar splitter 2 is set to be a plug structure 21, the third output end of the second bus-bar splitter 2 is set to be a socket structure 22, and the third output end of a certain second bus-bar splitter 2 is plugged with the input ends of other second bus-bar splitters 2. Compared with the connection mode of the wire-wiring column in the prior art, the mode of inserting the second bus-bar deconcentrator 2 through the plug-socket structure can further improve the working efficiency of installers and save the installation time.

Further specifically, the second busbar splitter 2 includes a box body 20, a plug structure 21 fixedly disposed on a first side wall 201 of the box body 20, and a socket structure 22 fixedly disposed on a second side wall 202 of the box body 20, where the first side wall 201 and the second side wall 202 are disposed opposite to each other, so that a plurality of second busbar splitters 2 can be connected in parallel in a row, and occupation of installation space is reduced.

The plug structure 21 comprises a first plug tab 211 and a second plug tab 212 fixedly arranged on the first side wall 201, and the socket structure 22 comprises a first socket 221 and a second socket 222 fixedly arranged on the second side wall 202; the first plug 211 is electrically connected to the first socket 221, and the second plug 212 is electrically connected to the second socket 222. When two second bus-bar splitters 2 are inserted and installed, the two second bus-bar splitters 2 are called a second bus-bar splitter a and a second bus-bar splitter B, respectively, so that the first inserting piece 211 of the second bus-bar splitter a can be inserted into the first inserting seat 221 of the second bus-bar splitter B, and the second inserting piece 212 of the second bus-bar splitter a can be inserted into the second inserting seat 222 of the second bus-bar splitter B.

In addition, the fourth output end of the second bus bar splitter 2 includes a first terminal 23 and a second terminal 24 fixedly disposed on the third sidewall 203 of the box 20, the first terminal 23 is electrically connected between the first inserting piece 211 and the first inserting seat 221, and the second terminal 24 is electrically connected between the second inserting piece 212 and the second inserting seat 222; the first terminal 23 and the second terminal 24 are electrically connected to the input terminal of the buck converter 3.

The first output end of the first bus-bar splitter 1 may also be configured as the socket structure 22, which is matched with the second bus-bar splitter 2, so that the input end of the second bus-bar splitter 2 is plugged with the first bus-bar splitter 1, thereby further improving the installation efficiency of the power supply system.

In another preferred implementation manner of this embodiment, in order to cope with the situation that the power supply system and the LED box 5 are separately disposed, the power supply system further includes a power supply box, where the first bus-bar splitter 1, the second bus-bar splitter 2, the buck converter 3, and the low-voltage splitter 4 are disposed inside the power supply box, and an output end of the low-voltage splitter 4 is electrically connected with a power input end of the LED box 5 through a remote power line. The low-voltage deconcentrator 4 is arranged at one end of the power supply box body so as to facilitate unified maintenance and management of a power supply system.

Or, the power supply system further comprises a power supply box body, the first bus-bar deconcentrator 1, the second bus-bar deconcentrator 2 and the buck converter 3 are arranged inside the power supply box body, the low-voltage deconcentrator 4 is arranged on the LED box body 5, and the output end of the buck converter 3 is electrically connected with the input end of the low-voltage deconcentrator 4 through a remote power line. In this embodiment, the low-voltage wire divider 4 is disposed at one end of the LED box 5 to reduce the number of remote power lines, thereby reducing the cost of the power supply system.

On the other hand, the embodiment of the utility model also provides an LED display screen, which comprises a plurality of LED boxes 5 for displaying pictures and a power supply system for supplying power to the LED boxes 5, wherein the power supply system comprises the power supply system.

Preferably, the LED boxes 5 are arranged in an array, the output end of each low-voltage wire divider 4 comprises 4 groups of connection terminals, and the 4 groups of connection terminals of each low-voltage wire divider 4 are electrically connected to the power input ends of the adjacent 4 LED boxes 5 in a one-to-one correspondence manner, so that the positioning and management of the LED boxes 5 are facilitated.

In particular, the number of connection terminals may also be adapted to the power of the LED box 5 and the power of the buck converter 3 to further increase the degree of modularity of the power supply system. For example, if the power of the buck converter 3 and the power of the LED boxes 5 are both determined, the number of LED boxes 5 that the buck converter 3 can drive is relatively determined, and at this time, the number of LED boxes 5 that one buck converter 3 can be connected to may be limited by setting the number of connection terminals of the low voltage splitter 4, so that overload of the buck converter 3 is prevented.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (9)

1. A power supply system for an LED display screen comprising a plurality of LED boxes (5) for displaying pictures, characterized in that the power supply system comprises: -one first busbar deconcentrator (1), at least one second busbar deconcentrator (2), at least one buck converter (3) and at least one low voltage deconcentrator (4);

the input end of the first bus-bar deconcentrator (1) is used for being connected with a mains supply (6), the output end of the first bus-bar deconcentrator (1) comprises a first output end and a second output end which are arranged in parallel, and the first output end is used for being connected with the input end of one second bus-bar deconcentrator (2);

the output end of the second bus-bar deconcentrator (2) comprises a third output end and a fourth output end which are arranged in parallel, and the third output end is used for being connected with the input ends of other second bus-bar deconcentrators (2);

the second output end and the fourth output end are respectively connected with the input end of a buck converter (3); the output end of the buck converter (3) is connected with the input end of the low-voltage deconcentrator (4);

the output end of the low-voltage deconcentrator (4) comprises a plurality of groups of wiring terminals which are arranged in parallel, and each group of wiring terminals is used for being connected with an LED box body (5) to supply power to the LED box body.

2. The power supply system according to claim 1, characterized in that the input end of the second busbar splitter (2) is provided as a plug structure (21), the third output end of the second busbar splitter (2) is provided as a socket structure (22), and the third output end of one second busbar splitter (2) is plugged into the input end of the other second busbar splitters (2).

3. The power supply system according to claim 2, characterized in that the second busbar splitter (2) comprises a box body (20), a plug structure (21) fixedly arranged on a first side wall (201) of the box body (20), a socket structure (22) fixedly arranged on a second side wall (202) of the box body (20), and the first side wall (201) is arranged opposite to the second side wall (202);

the plug structure (21) comprises a first plug sheet (211) and a second plug sheet (212) which are fixedly arranged on a first side wall (201), and the socket structure (22) comprises a first plug seat (221) and a second plug seat (222) which are fixedly arranged on a second side wall (202); the first plug sheet (211) is electrically connected with the first plug seat (221), and the second plug sheet (212) is electrically connected with the second plug seat (222).

4. A power supply system according to claim 3, characterized in that the fourth output end of the second busbar splitter (2) comprises a first terminal (23) and a second terminal (24) fixedly arranged on the third side wall (203) of the box body (20), the first terminal (23) being electrically connected between the first plug-in tab (211) and the first plug-in socket (221), the second terminal (24) being electrically connected between the second plug-in tab (212) and the second plug-in socket (222);

the first binding post (23) and the second binding post (24) are electrically connected with the input end of the buck converter (3).

5. The power supply system according to claim 1, further comprising a power supply box, wherein the first bus-bar deconcentrator (1), the second bus-bar deconcentrator (2), the buck converter (3) and the low-voltage deconcentrator (4) are arranged inside the power supply box, and an output end of the low-voltage deconcentrator (4) is electrically connected with a power input end of the LED box (5) through a remote power line.

6. The power supply system according to claim 1, further comprising a power supply box, wherein the first bus-bar deconcentrator (1), the second bus-bar deconcentrator (2) and the buck converter (3) are arranged inside the power supply box, the low-voltage deconcentrator (4) is arranged on the LED box (5), and an output end of the buck converter (3) is electrically connected with an input end of the low-voltage deconcentrator (4) through a remote power line.

7. The power supply system according to claim 1, characterized in that the buck converter (3) is a PWM switching power supply.

8. An LED display screen comprising a plurality of LED housings (5) for displaying pictures, and a power supply system for supplying power to the LED housings (5), characterized in that the power supply system comprises a power supply system according to any one of claims 1 to 7.

9. The LED display screen according to claim 8, characterized in that the LED housings (5) are arranged in an array, the output end of each low voltage splitter (4) comprises 4 sets of connection terminals, and the 4 sets of connection terminals of each low voltage splitter are electrically connected to the power input ends of the adjacent 4 LED housings (5) in a one-to-one correspondence, respectively.