External power supply protection device for radio and television engineering network line maintenance

Abstract

The utility model belongs to the field of power supply protection devices, and particularly relates to an external power supply protection device for network line maintenance of radio and television engineering. The device comprises a box body and a controller, an electricity inlet interface and an electricity outlet interface are formed in the left side wall of the box body, a current sensor used for detecting current and a voltage sensor used for detecting voltage are installed in the box body, the current sensor and the voltage sensor are electrically connected with the controller, a relay is installed in the box body, and the relay is electrically connected with the controller. The relay is used for disconnecting or connecting a circuit between the power inlet interface and the power outlet interface, the controller is electrically connected with the relay through the driving chip, an alarm assembly used for reminding workers is installed on the box body and electrically connected with the controller, and the controller is used for receiving and processing information transmitted by the current sensor and the voltage sensor. And on-off of the alarm assembly and the relay is controlled. According to the utility model, timely alarm and timely power failure can be realized, and an external power supply can be protected.

Description

Technical Field

[0001] This utility model belongs to the field of power protection devices, and in particular relates to an external power protection device for the maintenance of broadcasting engineering network lines. Background Technology

[0002] In network maintenance within broadcasting engineering, external power supplies are often used. When charging these external power supplies, an external power supply protection device is employed to monitor the charging power source and ensure its safety during charging.

[0003] The existing external power supply protection devices for cable TV network line maintenance lack clear alarm prompts, making it difficult to address charging power supply issues promptly and posing certain safety hazards. Furthermore, when the charging power supply experiences current or voltage problems, these devices cannot promptly cut off power to protect the external power supply. Utility Model Content

[0004] The purpose of this utility model is to provide an external power supply protection device for the maintenance of broadcasting engineering network lines, which can promptly issue alarms and cut off power.

[0005] The aforementioned external power supply protection device for cable TV network line maintenance includes a housing and a controller. The left side wall of the housing has an inlet and an outlet power interface. A current sensor for detecting current and a voltage sensor for detecting voltage are installed inside the housing. The current and voltage sensors are electrically connected to the controller. A relay is installed inside the housing to disconnect or connect the line between the inlet and outlet power interfaces. The controller is electrically connected to the relay via a driver chip. An alarm component for alerting staff is installed on the housing and is electrically connected to the controller. The controller receives and processes the information transmitted by the current and voltage sensors, and controls the activation and deactivation of the alarm component and the relay.

[0006] Furthermore, the alarm assembly includes a warning light and a speaker mounted on the top of the enclosure. The warning light and speaker are electrically connected to a controller, which controls the activation and deactivation of the warning light and speaker.

[0007] Furthermore, a partition is horizontally installed inside the enclosure, with relays, drive chips, and controllers all mounted on top of the partition, and voltage and current sensors mounted on the bottom of the enclosure.

[0008] Furthermore, a mounting frame with left and right connections is installed on the left side wall of the housing. The power inlet and power outlet are both located inside the mounting frame. A through groove with vertical connection is opened at the top of the mounting frame. A protective plate for sealing the mounting frame is vertically installed in the through groove. The protective plate slides vertically with the through groove. The upper end of the protective plate extends out of the through groove. A handle is installed on the top of the protective plate. A slot for inserting the lower end of the protective plate is opened on the lower inner side wall of the mounting frame.

[0009] Furthermore, a magnetic block is installed at the bottom of the slot, and the protective plate is made of alloy.

[0010] Furthermore, a door opening is provided on the front side wall of the box, and a protective door is hinged inside the door opening.

[0011] Furthermore, the protective door is provided with heat dissipation vents for heat dissipation inside the box, and a filter screen is installed inside the heat dissipation vents.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, when a problem occurs with the charging power supply, the controller uses a driver chip to control a relay to disconnect the line between the power inlet and the power outlet, thus cutting off the power. At the same time, the controller activates a warning light and a speaker to provide an audible and visual alarm, thereby providing timely alarm and power-off protection for the external power supply. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the front structure;

[0016] Figure 3 for Figure 1 The structural diagram on the left;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure after removing the protective plate;

[0018] Figure 5 This is a flowchart of the present invention;

[0019] Figure 6 This is a circuit module diagram of the present invention;

[0020] The components in the diagram are named as follows: 1. Housing; 2. Relay; 3. Warning light; 4. Driver chip; 5. Speaker; 6. Controller; 7. Partition; 8. Voltage sensor; 9. Magnetic block; 10. Current sensor; 11. Protective plate; 12. Mounting frame; 13. Handle; 14. Protective door; 15. Filter screen; 16. Power inlet interface; 17. Power outlet interface. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0022] Example 1

[0023] This embodiment describes an external power supply protection device for cable TV network line maintenance, comprising a housing 1 and a controller 6. The left side wall of the housing 1 has an inlet port 16 and an outlet port 17. Figure 4 As shown; in actual applications, it is connected to the ground wire, live wire, and neutral wire through the power input interface 16;

[0024] The housing 1 contains a current sensor 10 for detecting current and a voltage sensor 8 for detecting voltage. The current sensor 10 and the voltage sensor 8 are electrically connected to the controller 6, respectively. Figure 1 As shown; in practical applications, the current sensor 10 and the voltage sensor 8 are connected to the controller 6 via wires respectively; in practical applications, the current sensor 10 is existing technology. Based on different measurement principles, the current sensor 10 can be mainly divided into: shunt, electromagnetic current transformer, electronic current transformer, etc.

[0025] In practical applications, voltage sensor 8 is existing technology. Voltage sensor 8 refers to a sensor that can sense the voltage being measured and convert it into a usable output signal. Voltage sensor 8 can be divided into several main types, such as voltage transformer, Hall voltage sensor and fiber optic voltage sensor.

[0026] Relay 2 is installed inside housing 1. Relay 2 is used to disconnect or connect the line between power input interface 16 and power output interface 17. Controller 6 is electrically connected to relay 2 through driver chip 4. Figure 1 As shown; in actual application, the controller 6 is connected to the driver chip 4 through a wire, and the driver chip 4 is then connected to the relay 2 through a wire; in actual application, the driver chip 4 is the relay driver chip 4, so that the controller 6 can control the opening and closing of the relay 2 through the driver chip 4;

[0027] In practical applications, relay 2 is existing technology. Relay 2 is an electrical control device, usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control a large current. Therefore, it plays the roles of automatic adjustment, safety protection, and circuit switching in the circuit.

[0028] To further explain, such as Figure 1 and Figure 2As shown, a warning light 3 and a speaker 5 are installed on the top of the housing 1. The warning light 3 and the speaker 5 are electrically connected to the controller 6, which is used to control the opening and closing of the warning light 3 and the speaker 5. This paragraph as a whole constitutes an alarm component used to remind staff.

[0029] In practical applications, the warning light 3 and the speaker 5 are connected to the controller 6 via wires; in practical applications, the alarm component can also be an alarm with sound and light alarm function or a buzzer.

[0030] The controller 6 is used to receive and process the information transmitted by the voltage sensor 8, and to control the opening and closing of the alarm component and the relay 2; in actual use, the controller 6 can be a microcontroller or a PLC controller.

[0031] In practical applications, a battery is installed inside the enclosure to power the controller 6, warning light 3, speaker 5, current sensor 10 and voltage sensor 8.

[0032] In practical applications, such as Figure 6 As shown, relay 2 and current sensor 10 are connected in series in the line between power input interface 16 and power output interface 17, and voltage sensor 8 is connected in parallel in the line between power input interface 16 and power output interface 17, so that voltage sensor 8 can detect the voltage of current sensor 10, and current sensor 10 can detect the current in the line between power input interface 16 and power output interface 17, thereby obtaining the current data and voltage data of external power supply.

[0033] In this embodiment, during actual use, the external power supply is connected to the power output interface 17 via a wire, and the charging power supply (which can be AC ​​power) is connected to the power input interface 16 via a wire. After connection, current flows into the external power supply protection device. At this time, the current sensor 10 detects the current, and the voltage sensor 8 detects the voltage. The voltage sensor 8 and the current sensor 10 respectively transmit the detected information to the controller 6. The controller 6 processes the information. When the voltage or current exceeds the set value and does not immediately drop to the safe range, the controller 6 controls the relay 2 through the driver chip 4 to disconnect the line between the power input interface 16 and the power output interface 17 to cut off the power. At the same time, the controller 6 activates the warning light 3 and the speaker 5 to provide an audible and visual alarm, thereby enabling timely alarm and timely power cut-off to protect the external power supply.

[0034] Example 2

[0035] This embodiment further illustrates the technology. A partition 7 is horizontally installed inside the housing 1. The relay 2, drive chip 4, and controller 6 are all mounted on top of the partition 7. The voltage sensor 8 and current sensor 10 are mounted on the inner bottom of the housing 1. Figure 1As shown, the left end of the partition 7 is installed on the inner left side wall of the housing 1, and the right end of the partition 7 is installed on the right inner side wall of the housing; in actual application, the housing 1 protects the relay 2, the drive chip 4, the controller 6, the voltage sensor 8 and the current sensor 10.

[0036] Example 3

[0037] This embodiment further illustrates the technology. A mounting frame 12, with left and right connections, is installed on the left side wall of the housing 1. The power inlet 16 and power outlet 17 are both located inside the mounting frame 12. Figure 4 As shown;

[0038] The top of the mounting frame 12 has a through groove that connects the top and bottom. A protective plate 11 for sealing the mounting frame 12 is vertically installed in the through groove. The protective plate 11 slides vertically with the through groove. Figure 1 and Figure 3 As shown; in actual application, the side wall of the protective plate 11 fits against the inner side wall of the through groove to prevent the protective plate 11 from shaking when it moves up and down, and at the same time prevent external dust and other objects from entering the power inlet 16 and the power outlet 17 through the gap between the protective plate 11 and the through groove.

[0039] The upper end of the protective plate 11 extends through a slot, and a handle 13 is installed on the top of the protective plate 11. A slot for inserting the lower end of the protective plate 11 is provided on the lower inner side wall of the mounting frame 12. Figure 1 and Figure 3 As shown, when the protective plate 11 seals the mounting frame 12, the lower end of the protective plate 11 is inserted into the slot, the side wall of the protective plate 11 fits against the inner groove of the slot, and the slot and the protective plate 11 slide together vertically; in actual application, the handle 13 is installed on the top of the protective plate 11 with screws, and the protective plate 11 can be easily removed by the handle 13.

[0040] To further explain, such as Figure 1 As shown, a magnetic block 9 is installed at the bottom of the slot, and the protective plate 11 is made of alloy. In actual application, since the protective plate 11 is made of alloy, when the lower end of the protective plate 11 is plugged into the slot, the magnetic block 9 attracts and fixes the bottom of the protective plate 11, so that the protective plate 11 cannot be moved at will without external force.

[0041] Example 4

[0042] This embodiment further illustrates the technology. A doorway is provided on the front side wall of the housing 1, and a protective door 14 is hinged inside the doorway. Figure 2 As shown; in actual application, the protective door 14 is hinged to the door opening by a hinge or hinge, and the protective door 14 facilitates the maintenance and replacement of the components inside the box 1;

[0043] To further explain, such as Figure 2 As shown, the protective door 14 has a heat dissipation vent for heat dissipation inside the box 1, and a filter screen 15 is installed inside the heat dissipation vent. In actual application, heat dissipation is carried out to prevent the temperature inside the box 1 from getting too high and affecting the operation of the components inside the box 1. The filter screen 15 prevents external dust and other objects from entering the inside of the box 1.

Claims

1. A power supply protection device for the maintenance of broadcasting engineering network lines, comprising a housing (1) and a controller (6), characterized in that: The left side wall of the enclosure (1) is provided with an inlet port (16) and an outlet port (17). A current sensor (10) for detecting current and a voltage sensor (8) for detecting voltage are installed inside the enclosure (1). The current sensor (10) and the voltage sensor (8) are electrically connected to the controller (6). A relay (2) is installed inside the enclosure (1). The relay (2) is used to disconnect or connect the line between the inlet port (16) and the outlet port (17). The controller (6) is electrically connected to the relay (2) through a driver chip (4). An alarm component for reminding staff is installed on the enclosure (1). The alarm component is electrically connected to the controller (6). The controller (6) is used to receive and process the information transmitted by the current sensor (10) and the voltage sensor (8), and to control the opening and closing of the alarm component and the relay (2).

2. The external power supply protection device for cable TV network line maintenance according to claim 1, characterized in that: The alarm assembly includes a warning light (3) and a speaker (5) installed on the top of the enclosure (1). The warning light (3) and the speaker (5) are electrically connected to the controller (6), which is used to control the opening and closing of the warning light (3) and the speaker (5).

3. The external power supply protection device for cable TV network line maintenance according to claim 2, characterized in that: The enclosure (1) is horizontally mounted with a partition (7). The relay (2), drive chip (4) and controller (6) are all mounted on the top of the partition (7). The voltage sensor (8) and current sensor (10) are mounted on the bottom of the enclosure (1).

4. The external power supply protection device for cable TV network line maintenance according to claim 1, characterized in that: A mounting frame (12) with left and right connections is installed on the left side wall of the housing (1). The power inlet (16) and power outlet (17) are both located inside the mounting frame (12). A through groove with vertical connection is opened on the top of the mounting frame (12). A protective plate (11) for sealing the mounting frame (12) is vertically installed in the through groove. The protective plate (11) slides vertically with the through groove. The upper end of the protective plate (11) extends out of the through groove. A handle (13) is installed on the top of the protective plate (11). A slot for inserting the lower end of the protective plate (11) is opened on the lower inner side wall of the mounting frame (12).

5. The external power supply protection device for the maintenance of broadcasting engineering network lines according to claim 4, characterized in that: The slot has a magnet (9) installed at the bottom and the protective plate (11) is made of alloy.

6. The external power supply protection device for the maintenance of broadcasting engineering network lines according to claim 1, characterized in that: A door opening is provided on the front side wall of the box (1), and a protective door (14) is hinged inside the door opening.

7. The external power supply protection device for the maintenance of broadcasting engineering network lines according to claim 6, characterized in that: The protective door (14) is provided with a heat dissipation vent for heat dissipation inside the box (1), and a filter screen (15) is installed inside the heat dissipation vent.

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