Power-off protection device of set top box

Abstract

The utility model discloses a power-off protection device of a set top box, which relates to the technical field of set top boxes and comprises a shell, a transmission line is arranged in the middle of the rear side of the outer surface of the shell, a small storage battery pack is fixedly mounted at the bottom end of the rear side of the inner surface of the shell, and the transmission line penetrates through the shell to be connected with a power supply port of the small storage battery pack. A circuit board is fixedly installed on the inner surface of the shell and located on the front side of the small storage battery pack. Compared with the existing common set top box, the power-off protection device of the set top box has the advantages that the power supply voltage can be controlled through an adoptive power supply mode of the small storage battery pack and weakening of the resistor on the current, and the situation that a circuit is damaged due to the fact that high-power direct current directly enters the interior of the set top box main body is avoided; the small storage battery pack has the capability of storing the current, and the power supply current can be slowly weakened until the voltage cannot meet the power supply requirement during sudden power failure, so that the equipment damage caused by the impact of sudden power failure can be prevented, and the safety of the set top box main body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of set-top boxes, in particular to a power-off protection device for a set-top box. Background Art

[0002] A digital video conversion box (SetTopBox), also known as a set-top box or set-top box, is a device that connects a television set to an external signal source. It can convert compressed digital signals into television content and display it on the television. Signals can come from cable, satellite antennas, broadband networks, and terrestrial broadcasts. In addition to the images and sounds that analog television can provide, the set-top box can also receive digital content, including electronic program guides, Internet pages, subtitles, etc., so that users can watch digital television programs on existing televisions and conduct interactive digital entertainment, education, and commercial activities through the Internet. The power-off protection device is designed to prevent sudden power outages and calls, when high voltage shocks often cause equipment damage.

[0003] Most of the existing set-top boxes are directly connected to the power socket through a separate power cord and powered directly by direct current. There is no protection device in the middle part. The current directly enters the set-top box to power the internal electrical components, and the high-voltage current is distributed only through some resistance carried by the electrical components themselves. Frequent tripping causes the high-voltage power to be suddenly cut off and then suddenly supplied again, and this cycle repeats many times. The continuous instantaneous impact and interruption of the high-voltage power will cause damage to the electrical components inside the set-top box, which will cause the set-top box to be unable to be used normally, resulting in certain losses.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a power-off protection device for a set-top box is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a power-off protection device for a set-top box to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a power-off protection device for a set-top box, comprising a shell, a transmission line is arranged in the middle of the rear side of the outer surface of the shell, a small battery pack is fixedly installed at the bottom end of the rear side of the inner surface of the shell, and the transmission line passes through the shell and is connected to the power supply port of the small battery pack, a circuit board is fixedly installed on the inner surface of the shell at the front side of the small battery pack, the circuit board is connected to the output port of the small battery pack through a connecting line, and a resistor is fixedly installed on the front side of the surface of the circuit board by soldering.

[0007] Preferably, an electrode sheet is fixedly mounted on the front side of the circuit board via a connecting wire, and relay pins are fixedly mounted around the outer surface of the electrode sheet.

[0008] Preferably, plug pins are fixedly mounted on the outer sides of the outer surface of the relay pin, and a set-top box body is arranged on one side of the plug pin.

[0009] Preferably, a power socket is provided at the right end of the rear side of the outer surface of the set-top box body, and the plug pins are inserted into the power socket, and the lead pin in the middle of the power socket is located inside the relay pin and fits the electrode sheet.

[0010] Preferably, anti-slip pads are fixedly provided on both sides of the outer surface of the shell, and an exhaust fan is provided in the middle above the outer surface of the shell.

[0011] Preferably, heat dissipation mesh ports are provided on both sides of the exhaust fan above the outer surface of the housing, and the heat dissipation mesh ports are composed of a through slot and a dustproof net, and the dustproof net is fixedly arranged inside the through slot.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a transmission line, a small storage battery pack, a circuit board and a resistor. After the transmission line is plugged in and energized, the current first enters the small storage battery pack for storage, and then the small storage battery pack supplies power to the circuit board for powering. The voltage of the direct current is weakened by the resistor. Through the relay power supply mode of the small storage battery pack and the weakening of the current by the resistor, the magnitude of the power supply voltage can be controlled to prevent high-power direct current from directly entering the inside of the set-top box body and causing damage to the circuit. Since the small storage battery pack has the ability to store current, when the power is suddenly cut off, the power supply current will slowly weaken until the voltage cannot meet the power supply demand, which can prevent the impact of the sudden power cut from causing damage to the equipment, and greatly improve the safety of the set-top box body;

[0014] 2. The utility model is provided with an electrode sheet, a relay pin, a plug pin and a power socket. The plug pin carrying the relay pin is inserted into the power socket. The lead pin inside the relay pin fits with the electrode sheet, and the relay pin covers the lead pin, thereby absorbing the current supplied by the circuit board to the electrode sheet, so that the set-top box body is normally powered. The power-off protection device can be installed and connected by plugging and unplugging the plug pin and the power socket, and normal power supply is provided to the set-top box body, thereby improving the overall convenience of the power-off protection device.

[0015] 3. The utility model arranges an anti-skid pad, an exhaust fan and a heat dissipation mesh port. The anti-skid pad enables the outer shell to be more stably pinched by humans for plugging and unplugging. The exhaust fan continuously discharges the heat generated by the internal small battery pack and the circuit board during operation to prevent internal heat accumulation from causing damage to the power-off protection device itself. At the same time, the exhaust fan continuously discharges the hot air inside the outer shell. Under the pressure of the air pressure difference, fresh air from the outside will continuously flow into the inner shell through the heat dissipation mesh port to dissipate the heat of the small battery pack and the circuit board, preventing the small battery pack and the circuit board from being too hot and causing overload damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell of the utility model.

[0019] In the figure: 1. outer shell; 101. transmission line; 2. small battery pack; 3. circuit board; 4. resistor; 5. electrode sheet; 6. relay pin; 7. plug; 8. set-top box body; 9. power socket; 10. anti-slip mat; 11. exhaust fan; 12. heat dissipation network port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 3As shown, the power-off protection device of the set-top box includes a shell 1, a transmission line 101 is arranged in the middle of the rear side of the outer surface of the shell 1, a small battery pack 2 is fixedly installed at the bottom end of the rear side of the inner surface of the shell 1, and the transmission line 101 runs through the shell 1 and is connected to the power supply port of the small battery pack 2, a circuit board 3 is fixedly installed on the inner surface of the shell 1 at the front side of the small battery pack 2, the circuit board 3 is connected to the output port of the small battery pack 2 through a connecting line, a resistor 4 is fixedly installed on the front side of the surface of the circuit board 3 through soldering, an electrode sheet 5 is fixedly installed on the front side of the circuit board 3 through a connecting line, and relay pins 6 are fixedly installed around the outer surface of the electrode sheet 5. , a pin 7 is fixedly installed on the outer side around the outer surface of the relay pin 6, and a set-top box body 8 is arranged on one side of the pin 7, a power socket 9 is opened at the right end of the rear side of the outer surface of the set-top box body 8, and the pin 7 is plugged into the power socket 9, and the lead pin in the middle of the power socket 9 is located inside the relay pin 6 and fits with the electrode sheet 5, anti-slip pads 10 are fixedly arranged on both sides of the outer surface of the outer shell 1, and an exhaust fan 11 is arranged in the middle above the outer surface of the outer shell 1, and heat dissipation mesh ports 12 are arranged on both sides of the exhaust fan 11 above the outer surface of the outer shell 1, and the heat dissipation mesh port 12 consists of a through groove and a dustproof net, and the dustproof net is fixedly arranged inside the through groove.

[0022] Furthermore, the small storage battery pack 2 stores current and supplies it through a preset voltage, thereby preventing damage to the equipment caused by the impact of sudden power failure.

[0023] Furthermore, the resistor 4 weakens the voltage of the DC power to prevent high-power DC power from directly entering the inside of the set-top box body 8 and causing damage to the circuit.

[0024] Furthermore, the lead pin inside the relay pin 6 fits with the electrode sheet 5 , and the relay pin 6 covers the lead pin, thereby absorbing the current supplied to the electrode sheet 5 by the circuit board 3 , so that the set-top box body 8 is normally powered.

[0025] Furthermore, the plug pin 7 and the power socket 9 are butt-jointed and inserted, so that the power-off protection device can be assembled normally and quickly.

[0026] Furthermore, the exhaust fan 11 continuously discharges the hot air generated by the internal small battery pack 2 and the circuit board 3 during operation, thereby preventing the internal heat accumulation from causing damage to the power-off protection device itself.

[0027] Furthermore, under the pressure of the air pressure difference, fresh air from the outside will continuously flow into the housing 1 through the heat dissipation mesh port 12 to dissipate heat for the small battery pack 2 and the circuit board 3 .

[0028] Working principle: When using the power-off protection device of the set-top box, first, the pin 7 carrying the relay pin 6 is inserted into the power socket 9, and the power-off protection device can be installed and connected by plugging and unplugging the pin 7 and the power socket 9. Then, after the transmission line 101 is connected to the power socket and energized, the current first enters the small battery pack 2 for storage, and then the small battery pack 2 supplies power to the circuit board 3 for powering on. The voltage of the DC power is weakened by the resistor 4. At this time, the weakened current will be transmitted to the electrode sheet 5, and the lead pin inside the relay pin 6 will fit with the electrode sheet 5. The relay pin 6 will cover the lead pin, thereby absorbing the current supplied by the circuit board 3 to the electrode sheet 5, so that the set-top box body 8 is normally powered on. When supplying power, the exhaust fan 11 continuously discharges the hot air generated by the internal small battery pack 2 and the circuit board 3 to prevent the internal heat accumulation from causing damage to the power-off protection device itself. At the same time, the exhaust fan 11 continuously discharges the hot air inside the outer shell 1. Under the pressure of the air pressure difference, the fresh air from the outside will continuously flow into the inner part of the outer shell 1 through the heat dissipation network port 12 to dissipate the heat of the small battery pack 2 and the circuit board 3. After use, the transmission line 101 is suddenly powered off. Since the small battery pack 2 has the ability to store current, when the power is suddenly cut off, the power supply current will slowly weaken until the voltage cannot meet the power supply demand, which can prevent the impact of sudden power off from causing damage to the equipment. This is the working principle of the power-off protection device of the set-top box.

Claims

1. A power-off protection device for a set-top box, comprising a housing (1), characterized in that: A transmission line (101) is provided in the middle of the rear side of the outer surface of the shell (1); a small-sized storage battery pack (2) is fixedly mounted on the bottom end of the rear side of the inner surface of the shell (1); the transmission line (101) passes through the shell (1) and is connected to a power supply port of the small-sized storage battery pack (2); a circuit board (3) is fixedly mounted on the inner surface of the shell (1) at the front side of the small-sized storage battery pack (2); the circuit board (3) is connected to an output port of the small-sized storage battery pack (2) via a connecting line; and a resistor (4) is fixedly mounted on the front side of the surface of the circuit board (3) via soldering.

2. The power-off protection device for a set-top box according to claim 1, characterized in that: An electrode sheet (5) is fixedly mounted on the front side of the circuit board (3) via a connecting wire, and relay pins (6) are fixedly mounted around the outer surface of the electrode sheet (5).

3. The power-off protection device for a set-top box according to claim 2, characterized in that: A plug pin (7) is fixedly mounted on the outer side of the outer surface of the relay pin (6), and a set-top box body (8) is arranged on one side of the plug pin (7).

4. The power-off protection device for a set-top box according to claim 3, characterized in that: A power socket (9) is provided at the right end of the rear side of the outer surface of the set-top box body (8), and the plug pin (7) is inserted into the power socket (9), and the lead pin in the middle of the power socket (9) is located inside the relay pin (6) and fits the electrode sheet (5).

5. The power-off protection device for a set-top box according to claim 1, characterized in that: Anti-slip pads (10) are fixedly arranged on both sides of the outer surface of the outer shell (1), and an exhaust fan (11) is arranged in the middle above the outer surface of the outer shell (1).

6. The power-off protection device for a set-top box according to claim 1, characterized in that: Heat dissipation mesh ports (12) are provided on both sides of the exhaust fan (11) above the outer surface of the housing (1), and the heat dissipation mesh ports (12) are composed of a through slot and a dustproof net, and the dustproof net is fixedly arranged inside the through slot.

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