Power supply device and display device

Abstract

The utility model discloses a kind of power supply device and display equipment, it is related to power supply technical field, and power supply device includes control module, power supply selection circuit, photovoltaic power supply circuit and the photovoltaic power generation panel being set on display equipment;Control module connects power supply selection circuit, power supply selection circuit connects photovoltaic power supply circuit, photovoltaic power supply circuit connects the power input end of display equipment, and photovoltaic power generation panel connects photovoltaic power supply circuit;Power supply selection circuit is under the condition of receiving standby signal output by control module, and photovoltaic power supply circuit is turned on, to be powered by photovoltaic power supply circuit for display equipment.The utility model solves the technical problem that grid power consumption cost is high.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, and in particular to a power supply device and a display device. Background Technology

[0002] With the increasing prevalence of display devices (such as televisions and monitors) in homes, their energy consumption has become a prominent issue and a significant factor affecting household electricity usage. Common display devices, such as televisions, not only consume a large amount of grid power when turned on, but also experience energy loss in standby mode, thus increasing users' electricity costs. Utility Model Content

[0003] The main purpose of this utility model is to provide a power supply device and a display device, aiming to solve the technical problem of high electricity costs in the power grid.

[0004] To achieve the above objectives, this utility model proposes a power supply device for use in display devices. The power supply device includes a control module, a power supply selection circuit, a photovoltaic power supply circuit, and a photovoltaic power generation panel installed on the display device.

[0005] The control module is connected to the power supply selection circuit, the power supply selection circuit is connected to the photovoltaic power supply circuit, the photovoltaic power supply circuit is connected to the power input terminal of the display device, and the photovoltaic power generation panel is connected to the photovoltaic power supply circuit.

[0006] When the power supply selection circuit receives the standby signal output by the control module, it turns on the photovoltaic power supply circuit to supply power to the display device.

[0007] In one embodiment, the photovoltaic power supply circuit includes a first fuse, a first diode, and a first power supply switch.

[0008] The first end of the first fuse is connected to the output end of the photovoltaic panel, the second end of the first fuse is connected to the anode of the first diode, the cathode of the first diode is connected to the first end of the first power supply switch, the second end of the first power supply switch is connected to the power input end of the display device, and the third end of the first power supply switch is connected to the power selection circuit.

[0009] In one embodiment, the power supply selection circuit includes a first selection circuit, which includes a first switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, and a first capacitor.

[0010] The first end of the first resistor and the first end of the second resistor are connected to the first device status output terminal of the control module, the second end of the second resistor is connected to the first end of the first switching transistor, and the second end of the first switching transistor and the second end of the first resistor are grounded.

[0011] The third terminal of the first switching transistor is connected to the first terminal of the third resistor, the second terminal of the third resistor is connected to the first terminal of the fourth resistor, the first terminal of the fourth resistor is connected to the first terminal of the first capacitor, and the second terminals of the first capacitor and the fourth resistor are both connected to the third terminal of the first power supply switching transistor in the photovoltaic power supply circuit.

[0012] In one embodiment, when the control module outputs a standby signal at the first device status output terminal, the first switch of the first selection circuit in the power supply selection circuit is turned off, and the first power supply switch in the photovoltaic power supply circuit is turned on, so as to supply power to the display device through the photovoltaic power supply circuit;

[0013] When the control module outputs a power-on signal at the first device status output terminal, the first switch of the first selection circuit in the power supply selection circuit is turned on, the first power supply switch of the photovoltaic power supply circuit is turned off, and the photovoltaic power supply circuit stops supplying power to the display device.

[0014] In one embodiment, the power supply device further includes a mains power supply circuit, which is connected to the power input terminal of the display device and the power selection circuit.

[0015] In one embodiment, the mains power supply circuit includes a second fuse, a second diode, and a second power supply switch.

[0016] The first end of the second fuse is connected to the mains power supply, the second end of the second fuse is connected to the anode of the second diode, the cathode of the second diode is connected to the first end of the second power supply switch, the second end of the second power supply switch is connected to the power input terminal of the display device, and the third end of the second power supply switch is connected to the power selection circuit.

[0017] In one embodiment, the power supply selection circuit includes a second selection circuit, which includes a second switch, a third switch, a fifth resistor, a sixth resistor, and a seventh resistor.

[0018] The first terminal of the second switch is connected to the second device status output terminal of the control module, the second terminal of the second switch is grounded, and the third terminal of the second switch is connected to the first terminal of the fifth resistor and the first terminal of the sixth resistor.

[0019] The second end of the fifth resistor is connected to the second end of the fourth resistor in the first selection circuit of the power supply selection circuit. The second end of the sixth resistor is connected to the first end of the third switch. The second end of the third switch is connected to the first end of the seventh resistor. The third end of the third switch is grounded. The second end of the seventh resistor is connected to the third end of the second power supply switch.

[0020] In one embodiment, when the control module outputs a standby signal at the second device status output terminal, the second switch of the second selection circuit in the power supply selection circuit is turned on, the second power supply switch of the mains power supply circuit is turned off, and the mains power supply circuit stops supplying power to the display device.

[0021] When the control module outputs a power-on signal at the second device status output terminal, the second switch of the second selection circuit in the power supply selection circuit is turned on, the second power supply switch of the mains power supply circuit is turned off, and the mains power supply circuit supplies power to the display device.

[0022] In one embodiment, the standby signal output by the first device status output terminal is low level, and the power-on signal output by the first device status output terminal is high level;

[0023] The standby signal output by the second device status output terminal is high level, and the power-on signal output by the second device status output terminal is low level.

[0024] To achieve the above objectives, the present invention also provides a display device, which includes the power supply device described above.

[0025] This utility model provides a power supply device and a display device, which includes a control module, a power supply selection circuit, a photovoltaic power supply circuit, and a photovoltaic power generation panel disposed on the display device. The control module is connected to the power supply selection circuit, the power supply selection circuit is connected to the photovoltaic power supply circuit, the photovoltaic power supply circuit is connected to the power input terminal of the display device, and the photovoltaic power generation panel is connected to the photovoltaic power supply circuit. When the power supply selection circuit receives a standby signal output by the control module, it turns on the photovoltaic power supply circuit to supply power to the display device through the photovoltaic power supply circuit.

[0026] Since the photovoltaic power generation panel in this utility model is connected to the photovoltaic power supply circuit, the photovoltaic power generation panel can supply power to the photovoltaic power supply circuit. When the power supply selection circuit receives the standby signal, it can supply power to the display device through the photovoltaic power supply circuit, thereby reducing the consumption of grid power and reducing grid electricity costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the power supply device module connection provided in an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the photovoltaic power supply circuit in the power supply device provided by this utility model;

[0030] Figure 3 A schematic diagram of the circuit connection of the first selection circuit in the power supply selection circuit of the power supply device provided by this utility model;

[0031] Figure 4 A schematic diagram of a power supply device including a mains power supply circuit provided by this utility model;

[0032] Figure 5 A circuit connection diagram of the power supply device provided by this utility model;

[0033] Figure 6 A schematic diagram of the structure of an example provided by this utility model;

[0034] Figure 7 A schematic diagram of a module provided for an example of this utility model.

[0035] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0036] Explanation of icon numbers:

[0037] 100. Control module; 200. Power supply selection circuit; 300. Photovoltaic power supply circuit; 400. Photovoltaic power generation panel; 500. Display device; F1-F2. First fuse-second fuse; D1-D2. First diode-second diode; Qg1-Qg2. First power supply switch-second power supply switch; Din. Power input terminal of display device; ZT1. First device status output terminal; ZT2. Second device status output terminal; R1-R7. First resistor-seventh resistor; Ra. Eighth resistor; 600. Mains power supply circuit; 210. First selection circuit; 220. Second selection circuit; SD. Mains power supply; C1. First capacitor; Q1-Q3. First switch-third switch; S1. Controller of television; S2. Speaker; S3. Display; S4. Self-generating module. Detailed Implementation

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0041] With the increasing prevalence of display devices (such as televisions and monitors) in homes, their energy consumption has become a prominent issue and a significant factor affecting household electricity usage. Common display devices, such as televisions, not only consume a large amount of grid power when turned on, but also experience energy loss in standby mode, thus increasing users' electricity costs.

[0042] Therefore, this embodiment provides a power supply device that can utilize new energy sources to power the display device. For example, it can use electricity generated by a photovoltaic panel to power the display device, thereby reducing the consumption of grid electricity and saving users' electricity costs. Furthermore, since the photovoltaic panel in this embodiment can be installed on the display device, the display device itself can generate electricity, further reducing grid electricity consumption. The photovoltaic panel does not occupy additional space, and users do not need to prepare additional photovoltaic power generation equipment. Thus, electricity costs can be reduced through the display device in this embodiment.

[0043] Based on this, the present invention provides a power supply device. In one embodiment of the present invention, please refer to... Figure 1 The power supply device includes: a control module 100, a power supply selection circuit 200, a photovoltaic power supply circuit 300, and a photovoltaic power generation panel 400 installed on the display device 500;

[0044] The control module 100 is connected to the power supply selection circuit 200, the power supply selection circuit 200 is connected to the photovoltaic power supply circuit 300, the photovoltaic power supply circuit 300 is connected to the power input terminal Din of the display device, and the photovoltaic power generation panel 400 is connected to the photovoltaic power supply circuit 300.

[0045] When the power supply selection circuit 200 receives the standby signal output by the control module 100, it turns on the photovoltaic power supply circuit 300 to supply power to the display device 500 through the photovoltaic power supply circuit 300.

[0046] It should be noted that the power supply device can be applied to the display device 500, which can be a household appliance such as a television. This embodiment does not specifically limit this. The power supply selection circuit 200 can be used to adjust the power source of the display device 500. For example, the power source of the display device 500 can be the mains power supply SD or the electrical energy generated by the photovoltaic power generation panel 400. The photovoltaic power generation panel 400 can convert light energy into electrical energy. The photovoltaic power generation panel 400 is a photovoltaic thin-film flexible amorphous silicon photovoltaic cell. The photovoltaic power generation panel 400 can generate electricity by collecting ambient light energy. That is, even in low-light ambient light, the photovoltaic power generation panel 400 in this embodiment can convert the ambient light into electrical energy. For example, the photovoltaic power generation panel 400 can also generate electricity in indoor light or low-light environments such as fluorescent lamps and LEDs. The photovoltaic power generation panel 400 can be installed on the back panel of the display device 500, thus not occupying extra space and not affecting the aesthetics of the display device 500.

[0047] The photovoltaic power supply circuit 300 can transmit the electrical energy generated by the photovoltaic power generation panel 400 to the display device 500, thereby reducing the power grid consumption. The standby signal indicates that the display device 500 is in standby mode. When the display device 500 is in standby mode, it means that the display device 500 consumes power, but the power consumption of the display device 500 in standby mode is less than that of the display device 500 in the power-on mode.

[0048] The control module 100 can output a standby signal to the power selection circuit 200. The standby signal can be a level signal. For example, the control module 100 may include two device status output terminals, namely a first device status output terminal ZT1 and a second device status output terminal ZT1. Both the first device status output terminal ZT1 and the second device status output terminal ZT1 are used to output status signals of the display device 500, including standby signals and power-on signals. Both the first device status output terminal ZT1 and the second device status output terminal ZT1 are connected to the power selection circuit 200. When the power selection circuit 200 receives the standby signal output by the control module 100, the power selection circuit 200 can turn on the photovoltaic power supply circuit 300 to supply power to the display device 500. When the power selection circuit 200 receives the power-on signal, the photovoltaic power supply circuit 300 is not turned on, so that the display device 500 is not powered through the photovoltaic power supply circuit 300, thus avoiding insufficient power supply from the photovoltaic power supply circuit 300 to the display device 500, which could lead to a malfunction of the display device 500.

[0049] This embodiment provides a power supply device and a display device 500. The power supply device and display device 500 include a control module 100, a power supply selection circuit 200, a photovoltaic power supply circuit 300, and a photovoltaic power generation panel 400 disposed on the display device 500. The control module 100 is connected to the power supply selection circuit 200, the power supply selection circuit 200 is connected to the photovoltaic power supply circuit 300, the photovoltaic power supply circuit 300 is connected to the power input terminal Din of the display device, and the photovoltaic power generation panel 400 is connected to the photovoltaic power supply circuit 300. When the power supply selection circuit 200 receives a standby signal output by the control module 100, it turns on the photovoltaic power supply circuit 300 to supply power to the display device 500 through the photovoltaic power supply circuit 300.

[0050] Since the photovoltaic power generation panel 400 is connected to the photovoltaic power supply circuit 300 in this embodiment, the photovoltaic power generation panel 400 can supply power to the photovoltaic power supply circuit 300. When the power supply selection circuit 200 receives the standby signal, it can supply power to the display device 500 through the photovoltaic power supply circuit 300, thereby reducing the consumption of grid power and reducing grid electricity costs.

[0051] In one feasible embodiment, please refer to Figure 2 The photovoltaic power supply circuit 300 includes a first fuse F1, a first diode D2, and a first power supply switch Qg1;

[0052] The first end of the first fuse F1 is connected to the output terminal of the photovoltaic power generation panel 400, the second end of the first fuse F1 is connected to the anode of the first diode D2, the cathode of the first diode D2 is connected to the first end of the first power supply switch Qg1, the second end of the first power supply switch Qg1 is connected to the power input terminal Din of the display device, and the third end of the first power supply switch Qg1 is connected to the power supply selection circuit 200.

[0053] It should be noted that a fuse is an overcurrent protection device, and the first fuse F1 can provide overload protection and / or short-circuit protection. The first power supply switch Qg1 can be an N-channel enhancement MOSFET. The first terminal of the first fuse F1 can be connected to the output terminal of the photovoltaic panel 400 to receive the electrical energy generated by the photovoltaic panel 400. The first terminal of the first power supply switch Qg1 can be the drain, the second terminal of the first power supply switch Qg1 can be the source, and the third terminal of the second power supply switch Qg2 can be the gate.

[0054] When the power selection circuit 200 receives a standby signal, it can turn on the first power switch transistor Qg1, thereby enabling the photovoltaic power supply circuit 300 to supply power to the display device 500. When the power selection circuit 200 receives a power-on signal, it can turn off the first power switch transistor Qg1, thereby enabling the photovoltaic power supply circuit 300 to stop supplying power to the display device 500.

[0055] In this embodiment, by setting a first power supply switch Qg1 in the photovoltaic power supply circuit 300, it is easier to turn the photovoltaic power supply circuit 300 on or off, so as to select whether to supply power to the display device 500 through the photovoltaic power supply circuit 300.

[0056] In one feasible embodiment, please refer to Figure 3 The power supply selection circuit 200 includes a first selection circuit 210, which includes a first switching transistor Q1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a first capacitor C1.

[0057] The first end of the first resistor R1 and the first end of the second resistor R2 are connected to the first device status output terminal ZT1 of the control module 100, the second end of the second resistor R2 is connected to the first end of the first switch Q1, and the second end of the first switch Q1 and the second end of the first resistor R1 are grounded.

[0058] The third terminal of the first switch Q1 is connected to the first terminal of the third resistor R3, the second terminal of the third resistor R3 is connected to the first terminal of the fourth resistor R4, the first terminal of the fourth resistor R4 is connected to the first terminal of the first capacitor C1, and the second terminals of the first capacitor C1 and the fourth resistor R4 are both connected to the third terminal of the first power supply switch Qg1 in the photovoltaic power supply circuit 300.

[0059] It should be noted that the power supply selection circuit 200 includes a first selection circuit 210. The first selection circuit 210 can be connected to the photovoltaic power supply circuit 300, and it can also be connected to the first device status output terminal ZT1 of the control module 100. When the first selection circuit 210 receives the standby signal output from the first device status output terminal ZT1, it can turn on the photovoltaic power supply circuit 300 to supply power to the display device 500. The first device status output terminal ZT1 can output a standby signal and a power-on signal. The standby signal output by the first device status output terminal ZT1 is a low level, and the power-on signal output by the first device status output terminal ZT1 is a high level.

[0060] The first switching transistor Q1 can be an NPN transistor. The first terminal of Q1 is the base, the second terminal is the emitter, and the third terminal is the collector. The second terminals of the fourth resistor R4 and the first capacitor C1 can both be connected to the photovoltaic power supply circuit 300, for example, to the drain of the first power supply switching transistor Qg1 in the photovoltaic power supply circuit 300. The resistors and capacitors in the first selection circuit 210 make the first selection circuit 210 more stable and improve the circuit's anti-interference capability.

[0061] In a feasible embodiment, when the first device status output terminal ZT1 of the control module 100 outputs a standby signal, the first switch Q1 of the first selection circuit 210 in the power supply selection circuit 200 is turned off, and the first power supply switch Qg1 in the photovoltaic power supply circuit 300 is turned on, so as to supply power to the display device 500 through the photovoltaic power supply circuit 300.

[0062] When the control module 100 outputs a power-on signal at the first device status output terminal ZT1, the first switch Q1 of the first selection circuit 210 in the power supply selection circuit 200 is turned on, the first power supply switch Qg1 in the photovoltaic power supply circuit 300 is turned off, and the photovoltaic power supply circuit 300 stops supplying power to the display device 500.

[0063] It should be noted that the standby signal output by the first device status output terminal ZT1 is low level. When the first selection circuit 210 receives the low level, the base of the first switching transistor Q1 is made low level through the second resistor R2. The first switching transistor Q1 is turned off, which makes the first power supply switching transistor Qg1 conduct, and then the photovoltaic power supply circuit 300 conducts. The display device 500 can be powered through the photovoltaic power supply circuit 300, thereby reducing the consumption of grid power and reducing electricity costs.

[0064] The power-on signal output by the first device status output terminal ZT1 is high level. When the first selection circuit 210 receives the high level, the base of the first switching transistor Q1 is made high level through the second resistor R2. The first switching transistor Q1 is turned on, which makes the first power supply switching transistor Qg1 turn off. As a result, the photovoltaic power supply circuit 300 is disconnected and will not supply power to the display device 500, thereby avoiding the situation where the display device 500 cannot operate normally due to insufficient power provided by the photovoltaic power supply circuit 300.

[0065] This embodiment sets up a first selection circuit 210 and a photovoltaic power supply circuit 300, so that the photovoltaic power supply circuit 300 can supply power to the display device 500 in standby mode and not supply power to the display device 500 in power-on mode. In this way, while ensuring the normal operation of the display device 500, the power consumption of the display device 500 to the grid can be reduced, thereby saving electricity costs.

[0066] In one feasible embodiment, please refer to Figure 4 The power supply device further includes a mains power supply circuit 600, which is connected to the power input terminal Din of the display device and the power selection circuit 200.

[0067] It should be noted that the mains power supply circuit 600 can also supply power to the display device 500. The mains power supply circuit 600 is powered by AC mains power. The display device 500 consumes a lot of power when it is powered on, so the mains power supply circuit 600 is needed to supply power to the display device 500 when it is powered on to ensure the normal operation of the display device 500.

[0068] In one feasible embodiment, please refer to Figure 5 The mains power supply circuit 600 includes a second fuse F2, a second diode D2, and a second power supply switch Qg2;

[0069] The first end of the second fuse F2 is connected to the mains power supply SD, the second end of the second fuse F2 is connected to the anode of the second diode D2, the cathode of the second diode D2 is connected to the first end of the second power supply switch Qg2, the second end of the second power supply switch Qg2 is connected to the power input terminal Din of the display device, and the third end of the second power supply switch Qg2 is connected to the power selection circuit 200.

[0070] It should be noted that the second fuse F2 can provide overload protection and / or short-circuit protection. The second power supply switch Qg2 can be an N-channel enhancement MOSFET. The first terminal of the second fuse F2 can be connected to the mains power supply SD so that the display device 500 can be powered by the mains power, ensuring that the display device 500 can operate normally. The first terminal of the second power supply switch Qg2 can be the drain, the second terminal of the second power supply switch Qg2 can be the source, and the third terminal of the second power supply switch Qg2 can be the gate.

[0071] When the power selection circuit 200 receives a power-on signal, it can turn on the second power supply switch Qg2, thereby enabling the mains power supply circuit 600 to supply power to the display device 500. When the power selection circuit 200 receives a standby signal, it can turn off the second power supply switch Qg2, thereby enabling the mains power supply circuit 600 to stop supplying power to the display device 500, thus reducing the consumption of mains power.

[0072] In this embodiment, by setting a second power supply switch Qg2 in the photovoltaic power supply circuit 300, it is easier to disconnect or connect the grid power supply circuit 600, so as to select whether to supply power to the display device 500 through the grid power supply circuit 600, thereby facilitating the reduction of grid power consumption in the future.

[0073] In one feasible embodiment, please refer to Figure 6 The power supply selection circuit includes a second selection circuit 220, which includes a second switch Q2, a third switch Q3, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7.

[0074] The first terminal of the second switch Q2 is connected to the second device status output terminal ZT1 of the control module 100, the second terminal of the second switch Q2 is grounded, and the third terminal of the second switch Q2 is connected to the first terminal of the fifth resistor R5 and the first terminal of the sixth resistor R6.

[0075] The second end of the fifth resistor R5 is connected to the second end of the fourth resistor R4 of the first selection circuit 210 in the power supply selection circuit 200. The second end of the sixth resistor R6 is connected to the first end of the third switch Q3. The second end of the third switch Q3 is connected to the first end of the seventh resistor R7. The third end of the third switch Q3 is grounded. The second end of the seventh resistor R7 is connected to the third end of the second power supply switch Qg2.

[0076] It should be noted that the power supply selection circuit 200 also includes a second selection circuit 220. The second selection circuit 220 can be connected to the mains power supply circuit 600, and it is also connected to the second device status output terminal ZT1 of the control module 100. When the second selection circuit 220 receives the standby signal output from the second device status output terminal ZT1, it can turn off the mains power supply circuit 600 to reduce the consumption of mains power and thus reduce electricity costs. When the second rotation circuit receives the power-on signal output from the second device status output terminal ZT1, it can turn on the mains power supply circuit 600, thereby facilitating the mains power supply circuit 600 to provide a stable power supply to the display device 500. The second device status output terminal ZT1 can output a standby signal and a power-on signal. The standby signal output by the second device status output terminal ZT1 is a high level, and the power-on signal output by the second device status output terminal ZT1 is a low level.

[0077] The second switch Q2 can be an NPN transistor, and the third switch Q3 can be a PNP transistor. The first terminal of the second switch Q2 is the base, the second terminal is the emitter, and the third terminal is the collector. Similarly, the first terminal of the third switch Q3 is the base, the second terminal is the emitter, and the third terminal is the collector. The second terminal of the fifth resistor R5 in the second selection circuit 220 can also be connected to the cathode of the first diode D2 in the photovoltaic power supply circuit 300. The resistors in the second selection circuit 220 make it more stable and improve its anti-interference capability.

[0078] In a feasible embodiment, when the control module 100 outputs a standby signal at the second device status output terminal ZT1, the second switch Q2 of the second selection circuit 220 in the power supply selection circuit 200 is turned on, the second power supply switch Qg2 in the mains power supply circuit 600 is turned off, and the mains power supply circuit 600 stops supplying power to the display device 500.

[0079] When the control module 100 outputs a power-on signal at the second device status output terminal ZT1, the second switch Q2 of the second selection circuit 220 in the power supply selection circuit 200 is turned on, the second power supply switch Qg2 in the mains power supply circuit 600 is turned off, and the mains power supply circuit 600 supplies power to the display device 500.

[0080] It should be noted that the standby signal output by the second device status output terminal ZT1 is high level. When the second selection circuit 220 receives the high level, the second switch Q2 in the second selection circuit 220 is turned on, which turns on the third switch Q3, thereby turning off the second power supply switch Qg2, and then disconnecting the mains power supply circuit 600, so that the mains power supply circuit 600 stops supplying power to the display device 500 in the standby state, reducing the consumption of mains power.

[0081] The power-on signal output by the second device status output terminal ZT1 is low level. When the second selection circuit 220 receives the low level, the second switch Q2 in the second selection circuit 220 is turned off, causing the third switch Q3 to be turned off, thereby turning on the second power supply switch Qg2, which in turn turns on the mains power supply circuit 600, so that the mains power supply circuit 600 supplies power to the display device 500 in the power-on state, thereby ensuring the normal operation of the display device 500.

[0082] In one feasible embodiment, the standby signal output by the first device status output terminal ZT1 is low level, and the power-on signal output by the first device status output terminal ZT1 is high level.

[0083] The standby signal output by the second device status output terminal ZT1 is high level, and the power-on signal output by the second device status output terminal ZT1 is low level.

[0084] It should be noted that the level of the standby signal output by the first device status output terminal ZT1 is opposite to the level of the standby signal output by the second device status output terminal ZT1, and the level of the power-on signal output by the first device status output terminal ZT1 is opposite to the level of the standby signal output by the second device status output terminal ZT1.

[0085] In other embodiments, the first device status output terminal ZT1 is connected to the first selection circuit 210, and the first device status output terminal ZT1 can also be connected to the second selection circuit 220. An inverter is set between the first device status output terminal ZT1 and the second selection circuit 220, so that when the first device status output terminal ZT1 outputs a low-level standby signal, the first selection circuit 210 receives a low level, and the second selection circuit 220 receives a high level after inverting the low level. When the first device status output terminal ZT1 outputs a high-level standby signal, the first selection circuit 210 receives a high level, and the second selection circuit 220 receives a low level after inverting the high level.

[0086] Furthermore, in one embodiment, the power supply device may further include a signal transmitting module, which can be a remote controller. The signal transmitting module and the control module 100 can be communicatively connected. The remote controller can send a power-on signal, a standby signal, an energy-saving on signal, and an energy-saving off signal to the control module 100. The energy-saving on signal indicates that the display device 500 has activated the energy-saving mode, and the energy-saving off signal indicates that the display device 500 has deactivated the energy-saving mode. The energy-saving mode refers to supplying power to the display device 500 through the photovoltaic power supply circuit 300 in standby mode. It is understood that the control module 100 can supply power to the display device 500 through the photovoltaic power supply circuit 300 only when it receives both the energy-saving on signal and the standby signal. If the control module 100 receives the standby signal but not the energy-saving on signal, it will not supply power to the display device 500 through the photovoltaic power supply circuit 300, nor will it disconnect the power supply from the mains power supply circuit 600 to the display device 500. This facilitates determining whether to activate the energy-saving mode of the display device 500 based on user needs. For example, when the control module 100 receives the energy-saving start signal, both the first device status output terminal ZT1 and the second device status output terminal ZT1 can normally receive the standby signal and the power-on signal. When the energy-saving stop signal is received, the first device status output terminal ZT1 can be set to a high level and the second device status output terminal ZT1 can be set to a low level.

[0087] For example, a pull-up resistor can be set at the first device status output terminal ZT1, and a switching transistor can be set between the pull-up resistor and the first device status output terminal ZT1. The switching transistor is also connected to the port of the control module 100 that outputs the energy-saving on signal and the energy-saving off signal. When the control module 100 receives the energy-saving on signal, the switching transistor is turned off; when the control module 100 receives the energy-saving off signal, the switching transistor can be turned on, thereby pulling the first device status output terminal ZT1 high. Alternatively, a pull-down resistor can be set at the second device status output terminal ZT1, and a switching transistor can be set between the pull-up resistor and the second device status output terminal ZT1. The switching transistor is also connected to the port of the control module 100 that outputs the energy-saving on signal and the energy-saving off signal. When the control module 100 receives the energy-saving on signal, the switching transistor is turned off; when the control module 100 receives the energy-saving off signal, the switching transistor can be turned on, thereby pulling the second device status output terminal ZT1 low. This embodiment does not impose specific limitations on this approach.

[0088] The control module 100 can output the received power-on signal and standby signal from the first device status output terminal ZT1 and the second device status output terminal ZT1. For example, both the first device status output terminal ZT1 and the second device status output terminal ZT1 can receive the power-on signal and the standby signal. The first device status output terminal ZT1 can output a high-level power-on signal and a low-level standby signal. The second device status output terminal ZT1 can output a low-level power-on signal and a high-level standby signal.

[0089] For example, if the initial power-on signal received by the control module 100 is high and the initial standby signal is low, then the first device status output terminal ZT1 can directly output the high-level power-on signal and the low-level standby signal received by the control module 100. Before the second device status output terminal ZT1 outputs the corresponding power-on and standby signals, an inverter can be set to invert the initial standby signal to a high level and the initial power-on signal to a low level, so that the second device status output terminal ZT1 can output the low-level power-on signal and the high-level standby signal.

[0090] To better understand this embodiment, please refer to Figure 6 and Figure 7 , Figure 6 The illustration shows the setup of the photovoltaic panel 400 when using a display device 500 (e.g., a television set) as an example. Figure 6 The "a" in the diagram refers to the back panel of the television set when it is not equipped with photovoltaic panels. Figure 6 The "b" in the diagram refers to the shape of the photovoltaic panel 400. Figure 6The shape of the photovoltaic panel 400 referred to in the figure is designed to fit the back panel of a television set. Therefore, the shape of the photovoltaic panel 400 can be set according to the actual situation, and this embodiment does not make specific limitations on it. Figure 6 The "c" in the diagram refers to the photovoltaic panel 400 installed on the back panel of a TV. In other words, the original back panel of the TV can be replaced with the photovoltaic panel 400, which does not take up extra space or affect the aesthetics, and can generate its own electricity, reducing the consumption of grid power and reducing electricity costs.

[0091] Refer to Figure 7 , Figure 7 The diagram shows the module connection of display device 500, taking a television as an example. Figure 7 The controller S1 of the television can drive the speaker S2 and the display S3 to operate. In this embodiment, a self-generating module S4 can also be installed on the television. Figure 7 The self-generating module S4 in the text refers to the photovoltaic power generation panel 400, photovoltaic power supply circuit 300, power supply selection circuit 200, and grid power supply circuit 600 installed on the television set. In this embodiment, when the display device 500 is a television set, the control module 100 of the power supply device can be the controller of the television set. It can be understood that the control module 100 in the power supply device can be the control module 100 of the display device 500.

[0092] This utility model also provides a display device, which includes the power supply device and the display device as described above.

[0093] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A power supply device, characterized in that, The power supply device, which is used in display devices, includes a control module, a power selection circuit, a photovoltaic power supply circuit, and a photovoltaic power generation panel installed on the display device. The control module is connected to the power supply selection circuit, the power supply selection circuit is connected to the photovoltaic power supply circuit, the photovoltaic power supply circuit is connected to the power input terminal of the display device, and the photovoltaic power generation panel is connected to the photovoltaic power supply circuit. When the power supply selection circuit receives the standby signal output by the control module, it turns on the photovoltaic power supply circuit to supply power to the display device through the photovoltaic power supply circuit. The photovoltaic power supply circuit includes a first fuse, a first diode, and a first power supply switch transistor; The first end of the first fuse is connected to the output end of the photovoltaic panel, the second end of the first fuse is connected to the anode of the first diode, the cathode of the first diode is connected to the first end of the first power supply switch, the second end of the first power supply switch is connected to the power input end of the display device, and the third end of the first power supply switch is connected to the power supply selection circuit. The power supply selection circuit includes a first selection circuit, which includes a first switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, and a first capacitor. The first end of the first resistor and the first end of the second resistor are connected to the first device status output terminal of the control module, the second end of the second resistor is connected to the first end of the first switching transistor, and the second end of the first switching transistor and the second end of the first resistor are grounded. The third terminal of the first switching transistor is connected to the first terminal of the third resistor, the second terminal of the third resistor is connected to the first terminal of the fourth resistor, the first terminal of the fourth resistor is connected to the first terminal of the first capacitor, and the second terminals of the first capacitor and the fourth resistor are both connected to the third terminal of the first power supply switching transistor in the photovoltaic power supply circuit.

2. The power supply device as described in claim 1, characterized in that, When the control module outputs a standby signal at the first device status output terminal, the first switch of the first selection circuit in the power supply selection circuit is turned off, and the first power supply switch in the photovoltaic power supply circuit is turned on, so as to supply power to the display device through the photovoltaic power supply circuit; When the control module outputs a power-on signal at the first device status output terminal, the first switch of the first selection circuit in the power supply selection circuit is turned on, the first power supply switch of the photovoltaic power supply circuit is turned off, and the photovoltaic power supply circuit stops supplying power to the display device.

3. The power supply device as described in claim 1, characterized in that, The power supply device also includes a mains power supply circuit, which is connected to the power input terminal of the display device and the power selection circuit.

4. The power supply device as described in claim 3, characterized in that, The mains power supply circuit includes a second fuse, a second diode, and a second power supply switch transistor; The first end of the second fuse is connected to the mains power supply, the second end of the second fuse is connected to the anode of the second diode, the cathode of the second diode is connected to the first end of the second power supply switch, the second end of the second power supply switch is connected to the power input terminal of the display device, and the third end of the second power supply switch is connected to the power selection circuit.

5. The power supply device as described in claim 4, characterized in that, The power supply selection circuit includes a second selection circuit, which includes a second switching transistor, a third switching transistor, a fifth resistor, a sixth resistor, and a seventh resistor. The first terminal of the second switch is connected to the second device status output terminal of the control module, the second terminal of the second switch is grounded, and the third terminal of the second switch is connected to the first terminal of the fifth resistor and the first terminal of the sixth resistor. The second end of the fifth resistor is connected to the second end of the fourth resistor in the first selection circuit of the power supply selection circuit. The second end of the sixth resistor is connected to the first end of the third switch. The second end of the third switch is connected to the first end of the seventh resistor. The third end of the third switch is grounded. The second end of the seventh resistor is connected to the third end of the second power supply switch.

6. The power supply device as described in claim 5, characterized in that, When the control module outputs a standby signal at the second device status output terminal, the second switch of the second selection circuit in the power supply selection circuit is turned on, the second power supply switch of the mains power supply circuit is turned off, and the mains power supply circuit stops supplying power to the display device. When the control module outputs a power-on signal at the second device status output terminal, the second switch of the second selection circuit in the power supply selection circuit is turned on, the second power supply switch of the mains power supply circuit is turned off, and the mains power supply circuit supplies power to the display device.

7. The power supply device according to any one of claims 1 to 6, characterized in that, The standby signal output by the first device status output terminal is low level, and the power-on signal output by the first device status output terminal is high level. The standby signal output by the second device status output terminal is high level, and the power-on signal output by the second device status output terminal is low level.

8. A display device, characterized in that, The display device includes a power supply device as described in any one of claims 1-7.

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