CN112382231A - Adapter plate compatible with common cathode lamp panel and common anode lamp panel - Google Patents

Abstract

The invention discloses a pinboard compatible with a common-cathode lamp panel and a common-anode lamp panel, which comprises a pinboard body, a power module and a power interface, wherein the power module and the power interface are arranged on the pinboard body; the power supply module comprises an AC-DC converter, a DC-DC step-down transformer and a DC switcher; the power interface comprises an R power terminal, a B power terminal and a G power terminal; an AC-DC converter for down-converting the alternating current V3 into the direct current V2 and distributing the direct current V2 to the B power terminal, the G power terminal, the DC-DC step-down device, and the DC switch; a DC-DC step-down converter for stepping down the direct current V2 into a direct current V1 and distributing the direct current V1 to the DC switcher; and a DC switcher for allocating the direct current V2 to the R power terminal when the common anode lamp panel is used and allocating the direct current V1 to the R power terminal when the common cathode lamp panel is used. In the invention, the same adapter plate can be used for the common-anode lamp panel and the common-cathode lamp panel.

Description

Adapter plate compatible with common cathode lamp panel and common anode lamp panel

Technical Field

The invention relates to the technical field of LED display screens, in particular to a patch panel compatible with a common-cathode lamp panel and a common-anode lamp panel.

Background

The LED display screen is formed by splicing a plurality of display modules. The display module generally comprises a power module, a signal module, a switch board and a display lamp panel. The adapter plate is used for connecting the power module, the signal module and the display lamp panel, and power supply and signal input of the display module are achieved.

Patent documents CN108735148A and CN209787651U both disclose three-in-one adapter plates. This kind of trinity keysets is integrated on the keysets with power module, signal module usually to be connected with the demonstration lamp plate through the interface on the keysets, integrate the degree height, reduced the use of wire rod.

As shown in fig. 1, the existing triad principle is generally as follows: the power module has the main functions of receiving external input alternating current, converting the alternating current into direct current required by the signal module and the display lamp panel, supplying power for the signal module and supplying power for the display lamp panel through the interface. The signal module has the main functions of receiving display signals input from the outside, converting the display signals into display signals required by the display lamp panel and sending the display signals to the display lamp panel through the interface.

However, the existing display lamp panels are divided into a common cathode lamp panel and a common anode lamp panel. The common anode lamp panel and the common cathode lamp panel have different requirements on input direct current voltage and signal voltage. If the direct current voltage and the signal voltage required to be input by the R lamp group, the G lamp group and the B lamp group in the common-anode lamp panel are all 3.8V, the R lamp group in the common-cathode lamp panel is required to be 2.8V, and the G lamp group and the B lamp group in the common-cathode lamp panel are required to be 3.8V.

Therefore, the common cathode lamp panel and the common anode lamp panel have different requirements on the power module and the signal module, and the conventional three-in-one adapter plate cannot be compatible with the common anode lamp panel and the common cathode lamp panel.

Disclosure of Invention

The invention aims to solve the technical problem that the adapter plate compatible with the common-cathode lamp panel and the common-anode lamp panel is provided according to the defects of the prior art, and the problem that the common-anode lamp panel and the common-cathode lamp panel cannot be used compatibly by the conventional three-in-one adapter plate is solved.

The technical scheme of the invention is realized as follows:

a switching board compatible with a common-cathode lamp board and a common-anode lamp board comprises a switching board body, and a power module and a power interface which are arranged on the switching board body; the power supply module comprises an AC-DC converter, a DC-DC step-down transformer and a DC switcher; the power interface comprises an R power terminal, a B power terminal and a G power terminal;

the AC-DC converter is used for converting the voltage reduction of the alternating current V3 into the direct current V2 and distributing the direct current V2 to the B power supply terminal, the G power supply terminal, the DC-DC voltage reducer and the DC switcher;

the DC-DC step-down device is used for stepping down the direct current V2 into a direct current V1 and distributing the direct current V1 to the DC switcher;

the DC switcher is used for distributing the direct current V2 to the R power terminal when a common anode lamp panel is used and distributing the direct current V1 to the R power terminal when a common cathode lamp panel is used.

Further, the voltage of the alternating current V3 is 220V or 110-220V.

Further, the voltage of the direct current V2 is any one of 5V, 4.2V, and 3.8V.

Further, the voltage of the direct current V1 is 2.8V.

Furthermore, the device also comprises a signal module and a signal interface; the signal module comprises an RGB signal processor, an R signal converter and an R signal switcher, and the signal interface comprises an R signal terminal, a B signal terminal and a G signal terminal;

the RGB signal processor is powered by the direct current V2 and is used for receiving an R3 signal, a G3 signal and a B3 signal, converting the R3 signal, the G3 signal and the B3 signal into an R2 signal, a G2 signal and a B2 signal respectively, distributing the G2 signal and the B2 signal to the G signal terminal and the B signal terminal respectively, and distributing the R2 signal to the R signal switcher;

the R signal converter is powered by the direct current V1 and is used for receiving an R3 signal, converting the R3 signal into an R1 signal and distributing an R1 signal to the R signal switch;

the R signal switcher is used for distributing the R2 signal to the R signal terminal when a common anode lamp panel is used and distributing the R1 signal to the R signal terminal when a common cathode lamp panel is used.

Further, the voltages of the R2 signal, the G2 signal, and the B2 signal are all any one of 5V, 4.2V, and 3.8V.

Further, the voltage of the R1 signal is 2.8V.

By adopting the technical scheme, the invention has the beneficial effects that: the same set of adapter plate can be used to the lamp plate of the same sun and the lamp plate of the same yin, compatibility is good, the material is general, and material management and control cost and inventory cost are reduced.

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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic construction diagram of a conventional three-in-one adapter plate.

Fig. 2 is a schematic configuration diagram of the first embodiment.

Fig. 3 is a schematic construction diagram of the second embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2, a first embodiment of the present invention provides an adapter board compatible with a common-cathode lamp panel and a common-anode lamp panel, which includes an adapter board body, and a power module and a power interface both disposed on the adapter board body. The power supply module comprises an AC-DC converter, a DC-DC step-down transformer and a DC switcher; the power interface comprises an R power terminal, a B power terminal and a G power terminal.

And an AC-DC converter for down-converting the alternating current V3 into the direct current V2 and distributing the direct current V2 to the B power terminal, the G power terminal, the DC-DC step-down device, and the DC switch.

Wherein: according to design requirements, the AC-DC converter can support narrow voltage input, namely the voltage of the alternating current V3 is 220V, or support wide voltage input, namely the voltage of the alternating current V3 is 110-220V. The preferred AC-DC converter in the first embodiment supports a wide voltage input.

Wherein: according to design requirements, the voltage of the direct current V2 output by the AC-DC converter may be any one of 5V, 4.2V, and 3.8V, and other voltages may also be set. The voltage of the direct current V2 is preferably 3.8V in the first embodiment.

And a DC-DC step-down device for stepping down the direct current V2 to a direct current V1 and distributing the direct current V1 to the DC switcher.

Wherein: the voltage of the direct current V1 output by the DC-DC step-down transformer is 2.8V or other voltage, as long as the voltage of the direct current V1 is less than the voltage of the direct current V2. The voltage of the direct current V1 of 2.8V is preferred in the first embodiment.

And a DC switcher for allocating the direct current V2 to the R power terminal when the common anode lamp panel is used and allocating the direct current V1 to the R power terminal when the common cathode lamp panel is used.

Wherein: according to design requirements, the DC switcher can be a passive circuit (such as a jumper) or an active circuit (such as a logic switch), or a hybrid of the two, as long as it can select the output of the direct current V2 or the direct current V1, and ensure that the two cannot output simultaneously.

In the first embodiment, the power supply module realizes the function of compatible use of the common-anode lamp panel and the common-cathode lamp panel.

As shown in fig. 2, the present invention provides a second embodiment. The second embodiment comprises the first embodiment, a signal module and a signal interface. The signal module comprises an RGB signal processor, an R signal converter and an R signal switcher, and the signal interface comprises an R signal terminal, a B signal terminal and a G signal terminal.

And the RGB signal processor is supplied with power by direct current V2 output by the AC-DC converter, is used for receiving an R3 signal, a G3 signal and a B3 signal, converting the signals into an R2 signal, a G2 signal and a B2 signal respectively, distributing the G2 signal and the B2 signal to a G signal terminal and a B signal terminal respectively, and distributing an R2 signal to the R signal switcher.

Wherein: the R3 signal, G3 signal, and B3 signal are combined to form a complete display signal, which includes their respective DATA1, DATA2, DATA3, CLK, OE, GCLK and other control signals (the number and type of signals are matched with the driving requirements of the lamp panel). The display signal may be input to the RGB signal processor via an RJ45 cable transmission, an HDMI cable transmission, or other media transmission.

Wherein: since the RGB signal processor is supplied with power by the dc power V2, the voltages of the converted R2 signal, G2 signal, and B2 signal are equal to the voltage of the dc power V2, and are all 3.8V.

And the R signal converter is powered by the direct current V1 output by the DC-DC step-down device, is used for receiving the R3 signal and converting the R3 signal into an R1 signal, and distributes the R1 signal to the R signal switcher.

Wherein: since the R signal converter is powered by the dc power V1, the voltage of the converted R1 signal is equal to the voltage of the dc power V1, and is 2.8V.

And an R signal switcher for distributing the R2 signal to the R signal terminal when the common-anode lamp panel is used and distributing the R1 signal to the R signal terminal when the common-cathode lamp panel is used.

Wherein: according to design requirements, the R signal switch can be a passive circuit (such as a resistor) or an active circuit (such as a logic switch), or a hybrid of the two, as long as it can select the output of the R2 signal or the R1 signal, and it is ensured that the two cannot be output simultaneously.

In the second embodiment, the power module and the signal module realize the function of compatible use of the common-anode lamp panel and the common-cathode lamp panel. It should be noted that the power interface and the signal interface may be independent interfaces, or may be two-in-one interfaces, as long as they have terminals with corresponding functions.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

Translated fromChinese

1.一种兼容共阴灯板、共阳灯板的转接板，包括有转接板本体和设置于转接板本体上的电源模块、电源接口；其特征在于：所述电源模块包括有AC-DC转换器、DC-DC降压器以及DC切换器；所述电源接口包括有R电源端子、B电源端子、G电源端子；1. An adapter board compatible with a common cathode lamp board and a common anode lamp board, comprising an adapter board body, a power supply module and a power supply interface arranged on the adapter board body; it is characterized in that: the power supply module includes a AC-DC converter, DC-DC step-down device and DC switch; the power supply interface includes R power supply terminal, B power supply terminal and G power supply terminal;所述AC-DC转换器，用于将交流电V3降压转换为直流电V2，并将所述直流电V2分配给所述B电源端子、G电源端子、DC-DC降压器以及DC切换器；The AC-DC converter is used to step down the alternating current V3 and convert it into a direct current V2, and distribute the direct current V2 to the B power supply terminal, the G power supply terminal, the DC-DC step-down device and the DC switch;所述DC-DC降压器，用于将所述直流电V2降压为直流电V1，并将所述直流电V1分配给所述DC切换器；The DC-DC step-down device is used to step down the direct current V2 to the direct current V1, and distribute the direct current V1 to the DC switch;所述DC切换器，用于在使用共阳灯板时将所述直流电V2分配给所述R电源端子，在使用共阴灯板时将所述直流电V1分配给所述R电源端子。The DC switch is used for distributing the direct current V2 to the R power terminal when using a common anode lamp panel, and distributing the direct current V1 to the R power terminal when using a common cathode lamp panel.2.根据权利要求1所述一种兼容共阴灯板、共阳灯板的转接板，其特征在于：所述交流电V3的电压为220V或110~220V。2 . The adapter board compatible with a common cathode lamp board and a common anode lamp board according to claim 1 , wherein the voltage of the alternating current V3 is 220V or 110-220V. 3 .3.根据权利要求1所述一种兼容共阴灯板、共阳灯板的转接板，其特征在于：所述直流电V2的电压为5V、4.2V、3.8V中任意一者。3. The adapter board compatible with a common cathode lamp board and a common anode lamp board according to claim 1, wherein the voltage of the direct current V2 is any one of 5V, 4.2V, and 3.8V.4.根据权利要求1所述一种兼容共阴灯板、共阳灯板的转接板，其特征在于：所述直流电V1的电压为2.8V。4 . The adapter board compatible with a common cathode lamp board and a common anode lamp board according to claim 1 , wherein the voltage of the direct current V1 is 2.8V. 5 .5.根据权利要求1所述一种兼容共阴灯板、共阳灯板的转接板，其特征在于：还包括有信号模块和信号接口；所述信号模块包括有RGB信号处理器、R信号转换器以及R信号切换器，所述信号接口包括有R信号端子、B信号端子、G信号端子；5. The adapter board compatible with a common cathode lamp panel and a common anode lamp panel according to claim 1, characterized in that: it also includes a signal module and a signal interface; the signal module includes an RGB signal processor, a R a signal converter and an R-signal switch, the signal interface includes an R-signal terminal, a B-signal terminal, and a G-signal terminal;所述RGB信号处理器，由所述直流电V2供电，用于接收R3信号、G3信号、B3信号并分别转换为R2信号、G2信号、B2信号，将G2信号、B2信号分别分配给所述G信号端子、B信号端子，将R2信号分配给所述R信号切换器；The RGB signal processor, powered by the direct current V2, is used to receive the R3 signal, the G3 signal, and the B3 signal, convert them into the R2 signal, the G2 signal, and the B2 signal, respectively, and distribute the G2 signal and the B2 signal to the G2 signal, respectively. The signal terminal and the B signal terminal distribute the R2 signal to the R signal switcher;所述R信号转换器，由所述直流电V1供电，用于接收R3信号并转换为R1信号，将R1信号分配给所述R信号切换器；The R signal converter, powered by the direct current V1, is used for receiving the R3 signal and converting it into the R1 signal, and assigning the R1 signal to the R signal switcher;所述R信号切换器，用于在使用共阳灯板时将所述R2信号分配给所述R信号端子，在使用共阴灯板时将所述R1信号分配给所述R信号端子。The R signal switcher is used for assigning the R2 signal to the R signal terminal when using a common anode lamp panel, and assigning the R1 signal to the R signal terminal when using a common cathode lamp panel.6.根据权利要求5所述一种兼容共阴灯板、共阳灯板的转接板，其特征在于：所述R2信号、G2信号、B2信号的电压均为5V、4.2V、3.8V中任意一者。6 . The adapter board compatible with common cathode and common anode lamp boards according to claim 5 , wherein the voltages of the R2 signal, the G2 signal and the B2 signal are all 5V, 4.2V and 3.8V. 7 . any of them.7.根据权利要求5所述一种兼容共阴灯板、共阳灯板的转接板，其特征在于：所述R1信号的电压为2.8V。7 . The adapter board compatible with a common cathode lamp board and a common anode lamp board according to claim 5 , wherein the voltage of the R1 signal is 2.8V. 8 .

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