WO2021135771A1

WO2021135771A1 - Overvoltage protection apparatus for internet of things radio frequency transmitter

Info

Publication number: WO2021135771A1
Application number: PCT/CN2020/132348
Authority: WO
Inventors: 钱建华; 俞维
Original assignee: 江苏智维建设有限公司
Priority date: 2019-12-31
Filing date: 2020-11-27
Publication date: 2021-07-08
Also published as: CN210578506U

Abstract

Disclosed in the present utility model is an overvoltage protection apparatus for an Internet of Things radio frequency transmitter, comprising a housing. A storage cavity is formed in the housing; a circuit breaker is mounted at one end in the storage cavity; the circuit breaker is connected to a circuit by means of a wire; a rectifier diode, a step-down transformer, and a high-voltage sensor that are connected in parallel with the circuit breaker are further mounted in the storage cavity; a controller is further mounted in the housing; one end of the controller is electrically connected to a wireless signal transceiving module and an alarm; and an air inlet is formed on one side of the housing. The present utility model relates to the overvoltage protection apparatus for the Internet of Things radio frequency transmitter. When the circuit breaker is short-circuited due to the overvoltage of the circuit, the rectifier diode, the step-down transformer, and the high-voltage sensor turn on the circuit, the rectifier diode and the step-down transformer change a high-voltage circuit into a low-voltage circuit, the high-voltage sensor transmits a signal to the controller, and the controller turns on the circuit to control the wireless signal transceiving module and the alarm to work and transmit information to a remote terminal for timely reminding.

Description

Overvoltage protection device for radio frequency transmitter of Internet of Things

Technical field

The utility model relates to the technical field of circuit protection, in particular to an overvoltage protection device for a radio frequency transmitter of the Internet of Things.

Background technique

Overvoltage protection refers to a protection method that disconnects the power supply or reduces the voltage of the controlled equipment when the voltage of the protected line exceeds a predetermined maximum value. At present, the commonly used method in the market is to use metal conductors as the melt to break the circuit and connect it in series in the circuit. When the overload or short-circuit current passes through the melt, the melt itself will heat and fuse, which will cause damage to the power system and various electricians. Equipment and household appliances have played a certain protective role. However, when replacing parts of existing protection devices, most of them need to pull down the switch to achieve a complete power failure before they can be replaced. When the staff forget to pull the switch and replace it, there is a great safety hazard, and the risk of electric shock is extremely easy to occur. Endanger the lives and health of staff.

Existing overvoltage protection devices used for radio frequency transmitters of the Internet of Things cannot provide timely warnings when the circuit is overvoltage, and cannot perform wireless warning processing on remote terminals, which reduces the safety of use.

Utility model content

The purpose of the utility model is to provide an overvoltage protection device for the Internet of Things radio frequency transmitter, so as to solve the problem that the existing overvoltage protection device for the Internet of Things radio frequency transmitter cannot be made in time when the circuit is overvoltage. Warning reminders, and the remote terminal cannot perform wireless reminder processing, which reduces the problem of safety in use.

In order to achieve the above objective, the present invention provides the following technical solution: an overvoltage protection device for a radio frequency transmitter of the Internet of Things, comprising an outer shell, the outer shell is provided with a storage cavity, and one end of the storage cavity A circuit breaker is installed, and the circuit breaker is connected to the circuit through a wire. A rectifier diode, a step-down transformer and a high-voltage sensor connected in parallel with the circuit breaker are also installed in the storage cavity. A controller is also installed inside the outer casing. One end of the controller is electrically connected with a wireless signal transceiver module and an alarm. One side of the outer casing is provided with an air inlet, and the other side of the outer casing is provided with an air outlet, and one end of the air inlet is equipped with a cooling fan.

Preferably, a fixed foot is installed on the outer side of the outer shell, and a positioning hole is opened on the fixed foot.

Preferably, an insulating protective layer is installed on the inner wall of the storage cavity of the outer shell.

Preferably, dust filters are installed in the air inlet and the air outlet.

Preferably, a cover door is hingedly mounted on one side of the outer shell, and a see-through window is mounted on the cover door.

Preferably, the side wall of the outer casing is provided with a wire inlet hole, and a rubber protective pad is installed in the wire inlet hole.

Preferably, a built-in power supply is installed inside the outer shell, and the built-in power supply is electrically connected to the controller, the wireless signal transceiver module and the alarm.

Preferably, the outer casing adopts a metal casing, and an insulating coating is provided on the outer side of the outer casing.

Compared with the prior art, the beneficial effects of this utility model are:

1. When the circuit breaker is short-circuited by the circuit overvoltage, the rectifier diode, step-down transformer and high-voltage sensor connect the circuit. The rectifier diode and step-down transformer reduce the high-voltage circuit to a low-voltage circuit, and the high-voltage sensor transmits the signal to the control. The controller connects the circuit to control the work of the wireless signal transceiver module and the alarm, and transmits information to the remote terminal for timely reminders. The alarm sounds the alarm to alert nearby personnel, which is safer in use.

2. In the utility model, an air inlet is opened on one side of the outer shell, and an air outlet is opened on the other side of the outer shell. A cooling fan is installed at one end of the air inlet, which facilitates rapid heat dissipation treatment inside the outer shell and improves the service life.

3. In the utility model, an insulating protective layer is installed on the inner wall of the storage cavity of the outer casing, which can provide insulation protection to the outer casing, which is beneficial to improve the safety of use. Dust filters are installed in the air inlet and outlet to filter dust and prevent dust. Dust enters the housing.

Description of the drawings

The accompanying drawings are used to provide a further understanding of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model and do not constitute a limitation to the utility model. In the attached picture:

Figure 1 is a schematic diagram of the overall internal structure of the utility model;

Figure 2 is a schematic diagram of the overall structure of the utility model;

Figure 3 is a schematic block diagram of the utility model.

In the figure: 1. Outer shell; 2. Storage cavity; 3. Circuit breaker; 4. Wire; 5. Air outlet; 6. Rectifier diode; 7. Step-down transformer; 8. High voltage sensor; 9. Perspective window; 10. , Wireless signal transceiver module; 11. Alarm; 12. Cooling fan; 13. Fixed feet; 14. Positioning hole; 15. Air inlet; 16. Insulation protective layer; 17. Cover door; 18. Wire inlet hole; 19. Built-in power supply; 20. Controller.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.

Please refer to Figures 1-3. In an embodiment of the present invention, an overvoltage protection device for a radio frequency transmitter of the Internet of Things includes an outer casing 1, and the outer casing 1 is provided with a storage and discharge cavity 2 for storing discharge gas. Equipment, a circuit breaker 3 is installed at one end of the storage cavity 2, and the circuit breaker 3 is connected to the circuit through a wire 4. The storage cavity 2 is also equipped with a rectifier diode 6, a step-down transformer 7 and a high voltage sensor 8 in parallel with the circuit breaker 3 A controller 20 is also installed inside the outer shell 1, the high-voltage sensor 8 is electrically connected to the controller 20, and one end of the controller 20 is electrically connected to the wireless signal transceiver module 10 and the alarm 11, and the model of the wireless signal transceiver module 10 can be YS-5, the model of the alarm 11 can be LTE-1101, and the controller 20 adopts a single-chip computer model of HT66F018. When the circuit overvoltage causes the circuit breaker 3 to short circuit, the rectifier diode 6, the step-down transformer 7 and the high voltage sensor 8 are connected The rectifier diode 6 and the step-down transformer 7 reduce the high-voltage circuit to a low-voltage circuit. At the same time, the high-voltage sensor 8 transmits the signal to the controller 20, and the controller 20 controls the wireless signal transceiver module 10 and the alarm 11 to work to remote terminals. The information is transmitted to remind in time, the alarm 11 sounds an alarm to warn nearby people. An air inlet 15 is opened on one side of the outer shell 1, and an air outlet 5 is opened on the other side of the outer shell 1, and one end of the air inlet 15 is installed. The cooling fan 12 facilitates rapid heat dissipation treatment inside the outer casing 1 and facilitates the improvement of the service life.

Preferably, a fixing foot 13 is installed on the outer side of the outer shell 1, and a positioning hole 14 is opened on the fixing foot 13, which is convenient for installation and fixing.

Preferably, an insulating protective layer 16 is installed on the inner wall of the storage cavity 2 of the outer casing 1, which can provide insulating protection to the outer casing 1, which is beneficial to improve the safety of use.

Preferably, dust filters are installed in the air inlet 15 and the air outlet 5 to filter dust to prevent dust from entering the outer shell 1.

Preferably, a cover door 17 is hingedly mounted on one side of the outer shell 1, and a see-through window 9 is mounted on the cover door 17, which is convenient for covering and protecting one side of the outer shell 1.

Preferably, the side wall of the outer shell 1 is provided with a wire inlet 18, and a rubber protective pad is installed in the wire inlet 18 to facilitate the access of the wire 4.

Preferably, a built-in power source 19 is installed inside the outer shell 1, and the built-in power source 19 is a button battery pack, and the built-in power source 19 is electrically connected to the controller 20, the wireless signal transceiver module 10, and the alarm 11, which is convenient to connect to the controller 20, wireless The signal transceiving module 10 and the alarm 11 provide independent power supplies for operation.

Preferably, the outer shell 1 adopts a metal shell, and the outer shell 1 is provided with an insulating coating, which can provide insulation protection to the outer shell 1 and improve the safety of use.

The working principle and use process of the utility model: connect the device to the circuit, when the circuit overvoltage causes the circuit breaker 3 to short circuit, the rectifier diode 6, the step-down transformer 7 and the high-voltage sensor 8 are connected to the circuit, and the rectifier diode 6 and step-down The transformer 7 reduces the high-voltage circuit to a low-voltage circuit, and the high-voltage sensor 8 transmits the signal to the controller 20. The controller 20 controls the operation of the wireless signal transceiver module 10 and the alarm 11, and transmits information to remote terminals for timely reminders. 11 Sounds an alarm to warn nearby people, and has high safety in use; and an air inlet 15 is opened on one side of the outer shell 1, and an air outlet 5 is opened on the other side of the outer shell 1, and one end of the air inlet 15 is installed The cooling fan 12 facilitates rapid heat dissipation treatment inside the outer casing 1 and improves work efficiency.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, it is for those skilled in the art It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

An overvoltage protection device for a radio frequency transmitter of the Internet of Things, comprising an outer casing (1), characterized in that: the outer casing (1) is provided with a storage cavity (2) inside, and the storage cavity (2) ) A circuit breaker (3) is installed at one end of the inside, and the circuit breaker (3) is connected to the circuit through a wire (4), and a rectifier diode (6) connected in parallel with the circuit breaker (3) is also installed in the storage cavity (2) , A step-down transformer (7) and a high-voltage sensor (8), a controller (20) is also installed inside the outer casing (1), and one end of the controller (20) is electrically connected with a wireless signal transceiver module (10) And an alarm (11), one side of the outer casing (1) is provided with an air inlet (15), and the other side of the outer casing (1) is provided with an air outlet (5), and one end of the air inlet (15) is installed There is a cooling fan (12).
The overvoltage protection device for the radio frequency transmitter of the Internet of Things according to claim 1, characterized in that: the outer casing (1) is equipped with a fixed foot (13), and the fixed foot (13) is provided with There are positioning holes (14).
The overvoltage protection device for the radio frequency transmitter of the Internet of Things according to claim 1, characterized in that: an insulating protective layer (16) is installed on the inner wall of the storage cavity (2) of the outer casing (1).
An overvoltage protection device for an IoT radio frequency transmitter according to claim 1, wherein a dust filter is installed in the air inlet (15) and the air outlet (5).
The overvoltage protection device for the radio frequency transmitter of the Internet of Things according to claim 1, characterized in that: a cover door (17) is hingedly mounted on one side of the outer housing (1), and the cover door (17) A perspective window (9) is installed on it.
The overvoltage protection device for the radio frequency transmitter of the Internet of Things according to claim 1, characterized in that: the side wall of the outer casing (1) is provided with a wire inlet (18), and the wire inlet (18) ) Is equipped with rubber protective pads.
The overvoltage protection device for the radio frequency transmitter of the Internet of Things according to claim 1, characterized in that: a built-in power supply (19) is installed inside the outer casing (1), and the built-in power supply (19) and control The device (20), the wireless signal transceiver module (10) and the alarm device (11) are electrically connected.
The overvoltage protection device for radio frequency transmitters of the Internet of Things according to claim 1, characterized in that: the outer casing (1) adopts a metal casing, and the outer casing (1) is provided with an insulating coating .