CN218471428U - Passive power-taking type danger alarm device for high-voltage switch cabinet - Google Patents

Abstract

The utility model discloses a passive power-taking type high-voltage switch cabinet danger alarm device, which relates to the technical field of switch cabinet danger alarm devices. When the ambient light is not high, it will affect the response speed of the photosensitive module and delay the timing of the alarm. At the same time, the overheating phenomenon caused by the contact load in the cabinet cannot be detected and suppressed in time, which may easily cause safety hazards. A temperature-sensing probe, which is arranged on one side of the sound and light alarm; a proximity switch, which is arranged on one side of the described temperature-sensing probe, and the inside of the chip base is equipped with a single-chip microcomputer chip, a passive power-taking module and In the wireless data transmission module, the output end of the passive power-taking module is electrically connected to the input end of the single-chip microcomputer chip, and the output ends of the photosensitive probe, temperature sensing probe and proximity switch are all electrically connected to the input end of the single-chip microcomputer chip.

Description

Passive power-taking type high-voltage switchgear hazard alarm device

technical field

The utility model relates to the technical field of switch cabinet danger alarm devices, in particular to a passive power-taking type high-voltage switch cabinet danger alarm device.

Background technique

As a combination of various power equipment and instruments, high-voltage switchgear has the advantages of small size, convenient operation, and reliable operation. It is the most widely used equipment in substations. In actual operation, the failure rate of live monitors remains high. In this case, when the operator removes the fastening screws of the rear cabinet door, he can directly open the rear cabinet door for operation, which poses a huge safety hazard. In addition, the busbar warehouse on the top of the switch cabinet As a pressure relief channel, the metal baffles are all fixed with nylon screws, which can be easily disassembled. The risk of misoperation and misopening is very high. Therefore, it is necessary to arrange a danger alarm device at a live interval in the cabinet to play a role in misoperation and misopening. The effect of reminding the operator;

For example, the announcement number CN108538021A is called a passive acousto-optic alarm device for high-voltage switchgear. The high-voltage energy detection module is connected to the live equipment in the high-voltage switch cabinet, the high-voltage energy detection module is connected to the alarm processor, the photosensitive module is connected to the alarm processor, and the alarm processor is respectively connected to the indicator light and the buzzer. Sound and light alarm for control indicator light and buzzer.

During the use of the above-mentioned device, only the photosensitive module is used as the sensing device for alarm triggering. If the ambient light level is not high during operation, it will affect the response speed of the photosensitive module, delay the timing of the alarm, and at the same time, reduce the contact load in the cabinet. The overheating phenomenon of the overheating phenomenon cannot be detected and suppressed in time, and it is easy to cause safety hazards; therefore, we have proposed a passive power-taking type high-voltage switchgear danger alarm device to solve the above-mentioned problems.

Utility model content

The purpose of this utility model is to provide a passive power-taking type high-voltage switch cabinet danger alarm device to solve the problem that the existing device proposed in the above-mentioned background technology only relies on the photosensitive module as an induction device for alarm triggering during use. If the ambient light is not high, it will affect the response speed of the photosensitive module and delay the timing of the alarm. At the same time, the overheating phenomenon caused by the contact load in the cabinet cannot be detected and suppressed in time, which may easily cause safety hazards.

In order to achieve the above purpose, the utility model provides the following technical solutions: a passive power-taking type high-voltage switch cabinet danger alarm device, including a chip base, a photosensitive probe is installed on one side of the front end of the chip base, and the chip base An alarm light-transmitting shell is installed on the upper end, and an audible and visual alarm is installed inside the alarm light-transmitting shell;

Also includes:

A temperature-sensing probe, which is arranged on one side of the sound and light alarm;

A proximity switch is arranged on one side of the temperature probe.

Preferably, a single-chip microcomputer chip, a passive power-taking module and a wireless data transmission module are installed inside the chip base, and the output end of the passive power-taking module is electrically connected to the input end of the single-chip microcomputer chip.

Preferably, the output ends of the photosensitive probe, the temperature sensitive probe and the proximity switch are all electrically connected to the input end of the single-chip microcomputer chip, and the output end of the single-chip microcomputer chip is electrically connected to the input end of the sound and light alarm.

Preferably, the single-chip microcomputer chip is bidirectionally electrically connected to the background terminal through a wireless data transmission module.

Preferably, the lower end of the chip base is provided with a rubber suction cup, and the upper end of the rubber suction cup is fixedly connected to the chip base through a suction cup rod.

Preferably, supports are installed on both sides of the chip base, internal thread grooves are provided inside the support, a pole is provided at the lower end of the support, and one end of the support is passed through an external thread mechanism. It is threadedly connected with the internal thread groove, and the other end of the pole is equipped with a magnetic suction head.

Preferably, the upper end of the sound and light alarm is provided with a flame retardant storage tank, the upper end of the flame retardant storage tank is installed with a solenoid valve, and the output end of the single-chip microcomputer chip is electrically connected to the input end of the electromagnetic valve.

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

1. The utility model is provided with a photosensitive probe and a proximity switch on the danger alarm device. During operation, when the cabinet door is accidentally opened, the photosensitive probe can detect the change in ambient light after the cabinet door is opened, and the proximity switch is on the cabinet door. When the cabinet door is closed, it can detect the sensing surface on the cabinet door. When the cabinet door is opened, the sensing surface leaves the detection range, which can be detected in time and the signal is fed back to the single-chip microcomputer chip. After the two detection modules meet the conditions, they will send a signal To the single-chip microcomputer chip, it drives the operation of the sound and light alarm, reminds the operator to enter the electrified interval by mistake, significantly improves the response speed, and solves the problem that the existing device only relies on the photosensitive module as the sensing device for alarm triggering during operation. If the ambient light is not high, it will affect the response speed of the photosensitive module and delay the timing of the alarm.

2. By installing a temperature-sensing probe on the danger alarm device, because high-voltage equipment runs for a long time, high temperature, short circuit, and overload operation will occur, so by setting the temperature-sensing probe and cooperating with the alarm device distributed in the charged interval, Monitor the temperature in the cabinet at any time. When the temperature of the contact rises abnormally due to the load, the temperature sensor can detect the high temperature in time and transmit the signal to the single-chip microcomputer chip. On the one hand, the single-chip microcomputer chip reminds the surrounding staff through the sound and light alarm, and relies on The wireless data transmission module feeds back the temperature of the charged interval in the cabinet to the background terminal, which is convenient for the staff at the terminal to know the status of the cabinet in time. On the other hand, it drives the solenoid valve to open, releases the flame retardant gas in the flame retardant storage tank, and reduces the temperature of the contactor. Due to the probability of high temperature spontaneous combustion, the risk is actively suppressed, which solves the problem that the existing alarm device can not detect and suppress the overheating phenomenon caused by the contact load in the cabinet, which is easy to cause safety hazards.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the structural representation of the installation state of the present utility model;

Fig. 3 is a schematic diagram of the utility model;

In the figure: 1. chip base; 2. light-transmitting shell of the alarm; 3. photosensitive probe; 4. temperature-sensitive probe; 5. proximity switch; 6. support; 7. pole; 8. magnetic suction head; 9. Rubber suction cup; 10. Suction cup rod; 11. External thread mechanism; 12. Internal thread groove; 13. Single-chip microcomputer chip; 14. Passive power-taking module; 15. Sound and light alarm; 16. Wireless data transmission module; 17 1. Flame retardant storage tank; 18. Solenoid valve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Please refer to Figures 1-3, an embodiment provided by the utility model: a passive power-taking type high-voltage switch cabinet danger alarm device, including a chip base 1, a photosensitive probe 3 is installed on one side of the front end of the chip base 1, and the chip The upper end of the base 1 is equipped with an alarm light-transmitting shell 2, and the inside of the alarm light-transmitting shell 2 is equipped with an acousto-optic alarm 15;

Also includes:

A temperature-sensitive probe 4, which is arranged on one side of the sound and light alarm 15;

The proximity switch 5 is arranged on one side of the temperature probe 4 .

Please refer to Fig. 3 , the inside of the chip base 1 is equipped with a single-chip microcomputer chip 13, a passive power-taking module 14 and a wireless data transmission module 16, and the output terminal of the passive power-taking module 14 is electrically connected with the input terminal of the single-chip microcomputer chip 13, The passive power taking module 14 is connected to the live equipment inside the high-voltage switch cabinet through soft copper shielded wires to realize passive power taking. When shutting down, the passive power-taking module 14 stops gaining energy and shuts down the alarm device to save energy consumption.

Please refer to Fig. 3, the output ends of the photosensitive probe 3, the temperature sensitive probe 4 and the proximity switch 5 are all electrically connected to the input end of the single-chip microcomputer chip 13, and the output end of the single-chip microcomputer chip 13 is electrically connected to the input end of the sound and light alarm 15 , when the cabinet door is accidentally opened, the photosensitive probe 3 can detect the change of ambient light after the cabinet door is opened, and the proximity switch 5 can detect the sensing surface on the cabinet door when the cabinet door is closed, and when the cabinet door is opened, the sensor If the surface leaves the detection range, it can be found in time and the signal is fed back to the single-chip microcomputer chip. After the two detection modules meet the conditions, they will send a signal to the single-chip microcomputer chip 13 to drive the sound and light alarm 15 to run, which significantly improves the response speed. When the high-voltage equipment runs for a long time, high temperature, short circuit, overload operation and other phenomena will occur. Therefore, by setting the temperature sensing probe 4 and cooperating with the alarm device distributed in the charged interval, the temperature in the cabinet can be monitored at any time. When the temperature is abnormal, it can be Remind surrounding staff by sound and light alarm 15.

Please refer to Figure 3. The single-chip microcomputer chip 13 is electrically connected to the background terminal through the wireless data transmission module 16. The single-chip microcomputer chip can further feed back the door opening signal and the temperature of the charged interval in the cabinet to the terminal through the wireless data transmission module, which is convenient for the staff at the terminal. Know the condition of the cabinet.

Please refer to Figure 2, the lower end of the chip base 1 is provided with a rubber suction cup 9, the upper end of the rubber suction cup 9 is fixedly connected with the chip base 1 through the suction cup rod 10, and the alarm device can be connected to the inside of the cabinet through the rubber suction cup 9 at the lower end of the chip base 1. The wall is initially fixed by adsorption.

Please refer to Fig. 2, supports 6 are installed on both sides of the chip base 1, the inside of the support 6 is provided with an internal thread groove 12, the lower end of the support 6 is provided with a support rod 7, and one end of the support rod 7 passes through the external thread The mechanism 11 is threadedly connected with the internal thread groove 12, and the other end of the support rod 7 is equipped with a magnetic suction head 8. After the chip base 1 is absorbed by the rubber suction cup 9, the support rod 7 can be rotated to make it move along the internal thread groove 12. The direction moves outward until the end magnetic suction head 8 is attached to the inner wall of the cabinet, and the connection strength is reinforced by the magnetic force.

Please refer to Fig. 1 and Fig. 3, the upper end of acousto-optic alarm 15 is provided with flame retardant storage tank 17, and the upper end of flame retardant storage tank 17 is equipped with electromagnetic valve 18, and the output terminal of single-chip microcomputer chip 13 is connected with electromagnetic valve 18. The input end is electrically connected. When the temperature of the contact rises abnormally due to the load, the temperature sensing probe 4 can detect the high temperature in time and transmit the signal to the single-chip microcomputer chip 13. The single-chip microcomputer chip 13 drives the solenoid valve 18 to open and release the flame retardant. The flame retardant gas in the storage tank 17 reduces the probability of the contacts being spontaneously ignited due to high temperature.

Working principle: During installation, the alarm device is preliminarily adsorbed and fixed by the rubber suction cup 9 at the lower end of the chip base 1 and the inner wall of the cabinet. The support rod 7 makes it move outward along the direction of the internal thread groove 12 until the magnetic suction head 8 at the end sticks to the inner wall of the cabinet, relying on the magnetic force to make the connection of the device more secure. The copper shielding wire is connected to the live equipment inside the high-voltage switchgear to realize passive power acquisition. When the cabinet is running, the passive power acquisition module 14 obtains electric energy and automatically supplies the alarm device to start running. When the cabinet is closed, the passive power acquisition module 14 14 Stop the capacitation and close the alarm device to save energy. During operation, when the cabinet door is accidentally opened, the photosensitive probe 3 can detect the change of ambient light after the cabinet door is opened, and the proximity switch 5 can detect when the cabinet door is closed. The sensing surface on the cabinet door is detected. When the cabinet door is opened, the sensing surface leaves the detection range, which can be detected in time and the signal is fed back to the single-chip microcomputer chip. After one of the two detection modules meets the conditions, it will send a signal to the single-chip microcomputer chip. 13. Drive the sound and light alarm 15 to run to remind the operator to enter the charged interval by mistake, which significantly improves the response speed. Because high-voltage equipment runs for a long time, high temperature, short circuit, overload operation and other phenomena will occur, so by setting the temperature sensor 4. With the alarm device distributed in the charged interval, the temperature of each contact position in the cabinet can be monitored at any time. When the temperature of the contact rises abnormally due to the load, the temperature-sensing probe 4 can detect the high temperature in time and transmit the signal to the single-chip microcomputer chip 13. On the one hand, the single-chip microcomputer chip 13 reminds the surrounding staff through the sound and light alarm 15, and relies on the wireless data transmission module to feed back the temperature of the charged interval in the cabinet to the background terminal, so that the staff at the terminal can know the status of the cabinet in time. On the other hand, The solenoid valve 18 is driven to open to release the flame retardant gas in the flame retardant storage tank 17, reducing the probability of spontaneous combustion of the contacts due to high temperature.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The passive power-taking type high-voltage switch cabinet danger alarm device comprises a chip base (1), wherein a photosensitive probe (3) is installed on one side of the front end of the chip base (1), an alarm light-transmitting shell cover (2) is installed at the upper end of the chip base (1), and an audible and visual alarm (15) is installed inside the alarm light-transmitting shell cover (2);

the method is characterized in that: further comprising:

a temperature sensing probe (4) arranged on one side of the audible and visual alarm (15);

and a proximity switch (5) provided on one side of the temperature sensing probe (4).

2. The passive power-take-up high voltage switchgear hazard warning apparatus of claim 1, wherein: the intelligent power supply device is characterized in that a single chip microcomputer chip (13), a passive power taking module (14) and a wireless data transmission module (16) are arranged inside the chip base (1), and the output end of the passive power taking module (14) is electrically connected with the input end of the single chip microcomputer chip (13).

3. The passive power-take-up high voltage switchgear hazard warning apparatus of claim 2, wherein: the output ends of the photosensitive probe (3), the temperature sensing probe (4) and the proximity switch (5) are electrically connected with the input end of the single chip microcomputer chip (13), and the output end of the single chip microcomputer chip (13) is electrically connected with the input end of the audible and visual alarm (15).

4. The passive power-taking type high-voltage switchgear danger warning device according to claim 2, wherein: the single chip microcomputer chip (13) is electrically connected with the background terminal in a bidirectional mode through the wireless data transmission module (16).

5. The passive power-taking type high-voltage switchgear danger warning device according to claim 1, wherein: the lower extreme of chip base (1) is provided with rubber suction cup (9), the upper end of rubber suction cup (9) passes through sucking disc pole (10) and chip base (1) fixed connection.

6. The passive power-take-up high voltage switchgear hazard warning apparatus of claim 1, wherein: support (6) are all installed to the both sides of chip base (1), the inside of support (6) is provided with internal thread groove (12), the lower extreme of support (6) is provided with branch (7), external screw thread mechanism (11) and internal thread groove (12) threaded connection are passed through to the one end of branch (7), magnetic suction head (8) are installed to the other end of branch (7).

7. The passive power-take-up high voltage switchgear hazard warning apparatus of claim 3, wherein: the fire retardant storage tank (17) is arranged at the upper end of the audible and visual alarm (15), the electromagnetic valve (18) is installed at the upper end of the fire retardant storage tank (17), and the output end of the single chip microcomputer chip (13) is electrically connected with the input end of the electromagnetic valve (18).

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