CN220913730U - Electric shock prevention alarm device - Google Patents
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- CN220913730U CN220913730U CN202323057037.1U CN202323057037U CN220913730U CN 220913730 U CN220913730 U CN 220913730U CN 202323057037 U CN202323057037 U CN 202323057037U CN 220913730 U CN220913730 U CN 220913730U
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Abstract
The application discloses an electric shock prevention alarm device. The system comprises a plurality of first voltage sensors, an alarm prompting component and a microcontroller; each first voltage sensor is electrically connected with two electrodes, and the corresponding two electrodes of each first voltage sensor are buried under the ground of the corresponding preset azimuth of the power transmission equipment; the output end of each first voltage sensor is electrically connected with one path of data input end of the microcontroller, and the control signal input end of the alarm prompting component is electrically connected with the control signal output end of the microcontroller. According to the application, by arranging the plurality of first voltage sensors and the plurality of electrode pairs, whether step voltage exists at a plurality of places with different directions around the power transmission equipment can be monitored simultaneously, a more comprehensive and accurate monitoring result is provided, and the safety is improved; if the step voltage exists at a plurality of places around the power transmission equipment, the electric shock prevention alarm device provided by the application is only required to be arranged around the power transmission equipment.
Description
Technical Field
The application relates to the technical field of electrical safety, in particular to an electric shock prevention alarm device.
Background
In urban construction and power supply systems, power transmission equipment is an indispensable equipment for ensuring the transmission of electric energy to thousands of households. With the rapid development of cities and the increase of population, the number and the use range of power transmission equipment are continuously expanding, so that the attention to electric safety problems is also increasing.
The safe operation of the power transmission equipment is critical, however, the power transmission equipment may have a problem of electric leakage due to equipment aging, environmental influence, erroneous operation, or the like. Various power transmission equipment is often installed on the ground in cities and villages, and when the power transmission equipment is leaked, serious consequences such as electric shock risks, fire risks, equipment damage and the like can be caused. When leakage current flows through a human body, electric shock injury and even death can be caused. Meanwhile, the occurrence of electric leakage can increase the probability of fire occurrence, and threatens personal safety and property.
In addition, when the electric leakage problem exists in the power transmission equipment, a leakage electric field is formed around the power transmission equipment, and at the moment, if a human body passes through the leakage electric field or stands in the leakage electric field, a potential difference can exist between two feet of the human body, so that a step voltage is formed. The step voltage may cause electric shock injury to the human body, resulting in injury to body tissue, discomfort such as pain, muscle contraction, syncope, etc., and in severe cases, may cause cardioplegia and even death.
Therefore, it is necessary to monitor in real time whether there is a step voltage risk around the power transmission equipment. Currently, some devices capable of detecting step voltage are disclosed in, for example, chinese patent document CN206698014U, which discloses a step voltage leakage alarm device for a power distribution network, including a pair of ground poles, a leakage detection module and a wireless communication module, where the pair of ground poles are used for detecting ground step voltage around special equipment used in the power distribution network, and sending the step voltage to the leakage detection module, and the wireless communication module is a mobile phone communication module, and when the leakage detection module finds that the ground step voltage around the special equipment used in the power distribution network reaches a certain set value, the leakage condition is considered to exist, and alarm information is sent to the outside through the mobile phone communication module and the mobile communication network.
However, the inventor has realized that the step voltage leakage alarm device for the power distribution network is provided with only one pair of ground poles, and for a special equipment, when only one alarm device is provided, only the step voltage at a specific place around the special equipment can be detected. If it is desired to detect multiple locations around the ground around the specific equipment, multiple such leakage alarms may be installed, which may result in increased complexity and cost of the overall device.
Disclosure of utility model
Therefore, the application provides an electric shock prevention alarm device, which solves the technical problem that each existing electric leakage alarm device can only detect whether a step voltage exists at a specific place around equipment.
In order to achieve the above object, the present application provides the following technical solutions:
An anti-shock alarm device, comprising:
The first voltage sensors are electrically connected with two electrodes, and the corresponding two electrodes of each first voltage sensor are buried under the ground of the corresponding preset azimuth of the power transmission equipment;
An alarm prompting component;
And the output end of each first voltage sensor is electrically connected with one path of data input end of the microcontroller, and the control signal input end of the alarm prompting component is electrically connected with the control signal output end of the microcontroller.
Optionally, the electric shock prevention alarm device further comprises:
The second voltage sensor is electrically connected with two electrodes, one electrode is connected with the shell of the power transmission equipment, and the other electrode is connected with the ground wire of the power transmission equipment; the output end of the second voltage sensor is electrically connected with one path of data input end of the microcontroller.
Optionally, the electric shock prevention alarm device further comprises:
A distance sensor disposed on a housing of the power transmission device; the output end of the distance sensor is electrically connected with one path of data input end of the microcontroller.
Optionally, the alarm prompting component comprises a display screen and a loudspeaker, wherein the control signal input end of the display screen and the control signal input end of the loudspeaker are electrically connected with one path of control signal output end of the microcontroller.
Optionally, the electric shock prevention alarm device further comprises:
The temperature sensor is arranged on the shell of the power transmission equipment, and the output end of the temperature sensor is electrically connected with one path of data input end of the microcontroller.
Optionally, the electric shock prevention alarm device further comprises:
And the communication module is in bidirectional communication connection with the microcontroller and is used for establishing bidirectional communication connection with the cloud server.
Optionally, the electric shock prevention alarm device further comprises:
The target detection assembly is arranged at the boundary of a pre-defined dangerous area of the power transmission equipment; the output end of the target detection component is electrically connected with one path of data input end of the microcontroller.
Optionally, the electric shock prevention alarm device further comprises:
The voltage output end of the power supply module is electrically connected with the voltage input end of the microcontroller, and the voltage input end of the power supply module is electrically connected with the voltage output end of the storage battery or the voltage output end of the solar charging power supply device.
Optionally, the power transmission equipment is a box-type transformer, a high-low voltage power distribution cabinet, an urban street lamp post cabinet or a transformer substation.
Compared with the prior art, the application has at least the following beneficial effects:
The embodiment of the application provides a new hardware architecture of an electric shock prevention alarm device, which consists of a plurality of first voltage sensors, an alarm prompt component and a microcontroller, wherein each first voltage sensor is electrically connected with two electrodes, and the corresponding two electrodes of each first voltage sensor are buried under the ground of corresponding preset azimuth of power transmission equipment; by arranging a plurality of first voltage sensors and a plurality of electrode pairs, whether step voltage exists at a plurality of places in different directions around the power transmission equipment or not can be monitored simultaneously, a more comprehensive and accurate monitoring result is provided, and safety is improved; by combining with the conventional control method, the anti-electric shock alarm can also send corresponding control signals to the alarm prompt component when judging that the human body is positioned around the power transmission equipment and has step voltage, so that the alarm prompt component outputs alarm prompts, and the occurrence of electric shock accidents of personnel is effectively avoided; if step voltage is required to be monitored at a plurality of places around the power transmission equipment, the electric leakage monitoring of different directions and all directions around the power transmission equipment can be realized only by arranging one electric shock prevention alarm device provided by the application around the power transmission equipment, a plurality of electric shock prevention alarm devices are not required to be arranged, the complexity of the whole equipment is not increased, and the installation and operation cost is saved.
Drawings
In order to more intuitively illustrate the prior art and the application, several exemplary drawings are presented below. It should be understood that the specific shape and configuration shown in the drawings are not generally considered limiting conditions in carrying out the application; for example, those skilled in the art will be able to make routine adjustments or further optimizations for the addition/subtraction/attribution division, specific shapes, positional relationships, connection modes, dimensional proportion relationships, and the like of certain units (components) based on the technical concepts and the exemplary drawings disclosed in the present application.
Fig. 1 is a schematic structural diagram of an electric shock protection alarm device according to an embodiment of the present application;
Fig. 2 is a schematic diagram of a complete structure of an electric shock protection alarm device according to an embodiment of the present application.
Reference numerals illustrate:
1. A first voltage sensor; 2. an electrode; 3. an alarm prompting component; 301. a display screen; 302. a speaker; 4. a microcontroller; 5. a second voltage sensor; 6. a distance sensor; 7. a temperature sensor; 8. a communication module; 9. a target detection component; 10. a power module; 11. a storage battery; 12. and a solar charging power supply device.
Detailed Description
The application will be further described in detail by means of specific embodiments with reference to the accompanying drawings.
In the description of the present application: unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," and the like in this disclosure are intended to distinguish between the referenced objects without a special meaning in terms of technical connotation (e.g., should not be construed as emphasis on the degree of importance or order, etc.). The expressions "comprising", "including", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).
The terms such as "upper", "lower", "left", "right", "middle", etc. are generally used herein for convenience of visual understanding with reference to the drawings and are not to be construed as absolute limitations on the positional relationship of the actual product. Such changes in the relative positional relationship without departing from the technical idea of the present application are also considered as the scope of the present application.
In an embodiment of the present application, as shown in fig. 1, there is provided an electric shock prevention alarm device, including:
The first voltage sensors 1 are electrically connected with the two electrodes 2, and the corresponding two electrodes 2 of each first voltage sensor 1 are buried under the ground of the periphery of the power transmission equipment in the corresponding preset direction;
an alarm prompting component 3;
and the output end of each first voltage sensor 1 is electrically connected with one path of data input end of the microcontroller 4, and the control signal input end of the alarm prompting component 3 is electrically connected with the control signal output end of the microcontroller 4.
Specifically, the input end of each first voltage sensor 1 and the reference ground end are electrically connected with one electrode 2, and the reference ground end may be a GND pin or a REF pin of the first voltage sensor 1, and the first voltage sensor 1 can detect a potential difference between the corresponding two electrodes 2. The two electrodes 2 of each first voltage sensor 1 are arranged in pairs, so to speak, each first voltage sensor 1 is connected to a pair of electrodes. The distance between the two electrodes 2 in each pair of electrodes may be referred to as a distance of one step of a normal human body.
In the electric shock prevention alarm device provided by the application, the arrangement position of each pair of electrodes, the distance between each pair of electrodes and the power transmission equipment and the distance between two electrodes 2 in each pair of electrodes can be determined according to practical conditions, so long as the corresponding electrodes of all the first voltage sensors 1 are respectively arranged at different positions around the power transmission equipment. For example, the first voltage sensor 1 may be selectively provided with 4 pairs of electrodes, and four pairs of electrodes may be provided correspondingly; the four pairs of electrodes can be buried under the ground in the east, south, west and north directions of the power transmission equipment, and the distances between each pair of electrodes and the power transmission equipment can be the same or different. By arranging a plurality of first voltage sensors 1 and a plurality of corresponding electrode pairs, the electric leakage monitoring of different directions and all directions around the power transmission equipment can be realized.
The respective two electrodes 2 of each first voltage sensor 1 can simulate the positions of the two feet of a human body, and each first voltage sensor 1 can detect the voltage (potential difference) between the respective two electrodes 2, so that it is possible to simulate the step voltage generated when the human body is located around the power transmission apparatus when the power transmission apparatus has an electric leakage. Based on the hardware architecture provided by the application, the microcontroller 4 can further judge whether a step voltage is generated when a human body is positioned at the position where the electrode pair is arranged around the power transmission equipment in advance according to the numerical value detected by each first voltage sensor 1, judge whether the current power transmission equipment has electric leakage, judge whether the power transmission equipment is in electric shock risk and whether the power transmission equipment is safe.
As an optional configuration, when the microcontroller 4 determines that the current power transmission equipment has electric leakage and the periphery of the power transmission equipment has electric shock risk according to the value detected by the first voltage sensor 1, the microcontroller 4 can send a control signal to the alarm prompting component 3, so that the alarm prompting component 3 outputs an alarm prompt to remind the existence of the electric leakage voltage, remind a worker or a pedestrian to keep away, and ensure the safety of the worker.
Further, as shown in fig. 2, the electric shock prevention alarm device further includes:
The second voltage sensor 5 is electrically connected with the two electrodes 2, one electrode 2 is connected with the shell of the power transmission equipment, and the other electrode 2 is connected with the ground wire of the power transmission equipment at the position farthest from the power transmission equipment; the output end of the second voltage sensor 5 is electrically connected with one data input end of the microcontroller.
Similarly, the input end of the second voltage sensor 5 and the reference ground end are electrically connected with one electrode 2, and the reference ground end can be a GND pin or a REF pin of the second voltage sensor 5, and the second voltage sensor 5 can detect the potential difference between the two corresponding electrodes 2.
That is, the electric shock prevention alarm device includes a plurality of voltage sensors each including two electrodes 2, but the arrangement positions of the respective electrodes 2 of each voltage sensor are different.
In the electric shock prevention alarm device provided by the application, one electrode 2 of the second voltage sensor 5 is connected with the shell of the power transmission equipment, the other electrode 2 is connected with the ground wire of the power transmission equipment, and the electric shock prevention alarm device is equivalent to that one pin of the second voltage sensor 5 is connected with the shell of the power transmission equipment and the other pin is grounded, so that the second voltage sensor 5 can monitor the voltage (potential difference) between the shell of the power transmission equipment and the ground in real time. Based on the hardware architecture provided by the application, the microcontroller 4 receives the potential difference between the power transmission equipment shell and the ground detected by the second voltage sensor 5 in real time, and can judge whether the power transmission equipment has electric leakage.
As an alternative configuration, if the potential difference between the power transmission equipment housing and the ground exceeds a preset voltage threshold, it indicates that there is leakage in the power transmission equipment. When the microcontroller 4 judges that the electric leakage exists in the electric transmission equipment, the microcontroller sends a corresponding control signal to the alarm prompt component 3, so that the alarm prompt component 3 outputs an alarm prompt to remind a worker or a pedestrian of electric, dangerous and strict approaching at the place, and the worker or the pedestrian is prevented from approaching or touching the electric transmission equipment. The preset voltage threshold can be set according to actual conditions. For example, the preset voltage threshold may be one of 24V-36V.
Preferably, the electrode 2 connected to the housing of the power transmission device may be provided in plurality, and may be provided at different positions of the housing of the power transmission device, respectively.
In order to better and more accurately detect the leakage situation of the power transmission device, a plurality of electrodes 2 connected to the housing of the power transmission device may be provided and distributed at different positions of the housing of the power transmission device. By providing a plurality of electrodes 2 connected to the housing of the power transmission device, the potential difference between the housing of the power transmission device and the earth can be monitored simultaneously at different locations. This helps to detect local leakage problems of the power transmission equipment, such as failure or insulation damage of a specific area of the power transmission equipment enclosure. At the same time, the microcontroller 4 may also average a plurality of potential differences between the power transmission equipment housing and the earth, which are acquired from a plurality of electrodes 2 connected to the power transmission equipment housing, as a final potential difference between the power transmission equipment housing and the earth.
Further, as shown in fig. 2, the electric shock prevention alarm device further includes:
A distance sensor 6, the distance sensor 6 being arranged on the housing of the power transmission device; the output end of the distance sensor 6 is electrically connected with one path of data input end of the microcontroller 4; the distance sensor 6 is used to detect the distance between a worker or a pedestrian and the power transmission device.
Wherein the distance sensor 6 may be, but is not limited to, an infrared distance sensor and an ultrasonic distance sensor.
When there is an electrical leakage in the power transmission equipment, there may be a current passing through the ground. From the fault point, the current can be conducted back through the ground to the ground point, and if a human or animal stands between different ground points at the same time, a path is formed through which the current can generate a step voltage. The step voltage can cause electric shock hazard to human body or animals, so that when electric leakage exists in the power transmission equipment, a safe distance needs to be kept as far as possible from the power transmission equipment.
By providing the distance sensor 6, the distance between the worker or pedestrian and the power transmission device can be monitored in real time and sent to the microcontroller 4. Therefore, when the microcontroller 4 judges that the human body is located around the power transmission equipment and generates step voltage and has electric shock risk according to the value detected by each first voltage sensor 1, or when the microcontroller 4 judges that the power transmission equipment has electric leakage according to the value detected by the second voltage sensor 5, the microcontroller 4 can also judge whether the distance between the staff or the pedestrian and the power transmission equipment exceeds the preset safety distance according to the distance detected by the distance sensor 6. When the microcontroller 4 judges that the distance between the worker or the pedestrian and the power transmission equipment exceeds the preset safety distance according to the distance detected by the distance sensor 6, a corresponding control signal is also sent to the alarm prompting component 3, so that the alarm prompting component 3 outputs an alarm prompt. For example, the alarm prompting component 3 can be arranged when the electric leakage occurs in the electric transmission equipment, and the distance between the staff or the pedestrian and the electric transmission equipment is 0-10 meters, so that an alarm can be sent.
Further, as shown in fig. 2, the alarm prompting component 3 may specifically include a display screen 301 and a speaker 302, where a control signal input end of the display screen 301 and a control signal input end of the speaker 302 are electrically connected to one path of control signal output end of the microcontroller 4.
Through setting up display 301 and speaker 302, can produce step voltage, exist the electric shock risk when recognizing that the human body is located transmission equipment periphery, perhaps when recognizing that transmission equipment exists the electric leakage, can indicate through pronunciation, characters are flickering.
Further, as shown in fig. 2, the electric shock prevention alarm device further includes:
The temperature sensor 7, the temperature sensor 7 sets up on transmission of electricity equipment's shell, and the output of temperature sensor 7 is connected with microcontroller 4 data input end electric connection all the way.
By providing the temperature sensor 7, the temperature state of the power transmission equipment can also be monitored in real time. As an optional configuration, the microcontroller 4 receives the temperature information of the power transmission control device acquired by the temperature sensor 7 in real time, and when the microcontroller 4 determines that the received temperature exceeds the preset temperature threshold, the microcontroller also sends a corresponding control signal to the alarm prompting component 3, so that the alarm prompting component 3 outputs an alarm prompt to remind a worker to check abnormality, repair and the like.
Further, as shown in fig. 2, the electric shock prevention alarm device further includes:
the communication module 8, communication module 8 and microcontroller 4 two-way communication connection, communication module 8 are used for establishing two-way communication connection with the cloud server, and cloud server and monitor terminal communication connection.
The communication module 8 may be a wired communication module, such as an ethernet module or a serial port module; but also a wireless communication module such as a WiFi module, a bluetooth module or a 4G/5G mobile communication module.
Through setting up communication module 8, the data that gathers through first voltage sensor 1, second voltage sensor 5, distance sensor 6 and temperature sensor 7 can be sent to monitor terminal through cloud server in real time to the staff can long-range the behavior of knowing transmission of electricity equipment. When the staff knows through monitor terminal that transmission equipment takes place the electric leakage, can remote control transmission equipment stop operation, avoid producing danger, also can maintain transmission equipment as early as possible simultaneously.
Preferably, the electric shock prevention alarm device further comprises:
A target detection component 9, wherein the target detection component 9 is arranged at the boundary of a pre-defined dangerous area of the power transmission equipment; the output end of the target detection component 9 is electrically connected with one path of data input end of the microcontroller 4; the object detection component 9 may also be in remote communication with the microcontroller 4 via the communication module 8.
The object detection component 9 may be a camera, an infrared sensor, a radar, an ultrasonic sensor or a laser sensor, among others.
That is, a dangerous area range may be set in the peripheral area of the power transmission apparatus, and whether a person enters the dangerous area may be detected by the target detection means 9; when a person enters the dangerous area, the target detection component 9 is triggered and sends a signal to the microcontroller 4 through the wireless communication module 8, and then the microcontroller 4 sends a corresponding control signal to the alarm prompt component 3 after receiving the signal sent by the target detection component 9, so that the alarm prompt component 3 outputs an alarm prompt to prompt that a passer-by has electricity, danger and is forbidden to approach tightly through a voice or a display screen.
Further, as shown in fig. 2, the electric shock prevention alarm device further includes:
The voltage output end of the power module 10 is electrically connected with the voltage input end of the microcontroller 4, and the voltage input end of the power module 10 is electrically connected with the voltage output end of the storage battery 11 or the voltage output end of the solar charging power supply device 12.
In other words, the electric shock protection alarm device can be powered by the storage battery 11 or by the solar charging power supply device 12. Of course, the electric shock prevention alarm device can also adopt 220V power supply.
Further, the power transmission equipment can be a box-type transformer, a high-low voltage power distribution cabinet, an urban street lamp post cabinet or a transformer substation. The electrode 2 can be a metal rod, a steel nail, a copper plate or the like, so that the electrode 2 has good electric conduction performance and corrosion resistance. When the electrode 2 is mounted on the casing of the power transmission device, the electrode 2 may be fixed by means of screws, clips, welding, or the like in order to ensure good contact between the electrode 2 and the casing of the power transmission device.
The embodiment of the application provides a new hardware architecture of an electric shock prevention alarm device, which consists of a plurality of first voltage sensors, an alarm prompt component and a microcontroller, wherein each first voltage sensor is electrically connected with two electrodes (a pair of electrodes), and the corresponding two electrodes of each first voltage sensor are buried under the ground of corresponding preset azimuth of power transmission equipment; by arranging a plurality of first voltage sensors and a plurality of electrode pairs, whether step voltage exists at a plurality of places in different directions around the power transmission equipment or not can be monitored simultaneously, a more comprehensive and accurate monitoring result is provided, and safety is improved; by combining with the conventional control method, the anti-electric shock alarm can also send corresponding control signals to the alarm prompt component when judging that the human body is positioned around the power transmission equipment and has step voltage, so that the alarm prompt component outputs alarm prompts, and the occurrence of electric shock accidents of personnel is effectively avoided; if step voltage is required to be monitored at a plurality of places around the power transmission equipment, the electric leakage monitoring of different directions and all directions around the power transmission equipment can be realized only by arranging one electric shock prevention alarm device provided by the application around the power transmission equipment, a plurality of electric shock prevention alarm devices are not required to be arranged, the complexity of the whole equipment is not increased, and the installation and operation cost is saved.
The positions of each first sensor and the corresponding electrode pair can be set according to actual requirements, so that the sensor is suitable for the peripheral arrangement conditions of different power transmission equipment, and has higher flexibility and adaptability.
Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.
The application has been described above with particularity and detail in connection with general description and specific embodiments. It should be understood that numerous conventional modifications and further innovations may be made to these specific embodiments, based on the technical concepts of the present application; but these conventional modifications and further innovations may also fall within the scope of the claims of the present application as long as they do not depart from the technical spirit of the present application.
Claims (9)
1. An electric shock prevention alarm device, comprising:
The first voltage sensors are electrically connected with two electrodes, and the corresponding two electrodes of each first voltage sensor are buried under the ground in the corresponding preset azimuth of the periphery of the power transmission equipment;
An alarm prompting component;
And the output end of each first voltage sensor is electrically connected with one path of data input end of the microcontroller, and the control signal input end of the alarm prompting component is electrically connected with the control signal output end of the microcontroller.
2. The electric shock protection warning device according to claim 1, characterized in that the electric shock protection warning device further comprises:
The second voltage sensor is electrically connected with two electrodes, one electrode is connected with the shell of the power transmission equipment, and the other electrode is connected with the ground wire of the power transmission equipment; the output end of the second voltage sensor is electrically connected with one path of data input end of the microcontroller.
3. The electric shock protection warning device according to claim 1, characterized in that the electric shock protection warning device further comprises:
A distance sensor disposed on a housing of the power transmission device; the output end of the distance sensor is electrically connected with one path of data input end of the microcontroller.
4. The electric shock protection alarm device according to claim 1, wherein the alarm prompting component comprises a display screen and a loudspeaker, and the control signal input end of the display screen and the control signal input end of the loudspeaker are electrically connected with one path of control signal output end of the microcontroller.
5. The electric shock protection warning device according to claim 1, characterized in that the electric shock protection warning device further comprises:
The temperature sensor is arranged on the shell of the power transmission equipment, and the output end of the temperature sensor is electrically connected with one path of data input end of the microcontroller.
6. The electric shock protection warning device according to claim 1, characterized in that the electric shock protection warning device further comprises:
And the communication module is in bidirectional communication connection with the microcontroller and is used for establishing bidirectional communication connection with the cloud server.
7. The electric shock protection warning device according to claim 1, characterized in that the electric shock protection warning device further comprises:
The target detection assembly is arranged at the boundary of a pre-defined dangerous area of the power transmission equipment; the output end of the target detection component is electrically connected with one path of data input end of the microcontroller.
8. The electric shock protection warning device according to claim 1, characterized in that the electric shock protection warning device further comprises:
The voltage output end of the power supply module is electrically connected with the voltage input end of the microcontroller, and the voltage input end of the power supply module is electrically connected with the voltage output end of the storage battery or the voltage output end of the solar charging power supply device.
9. The electric shock protection alarm device according to claim 1, wherein the power transmission equipment is a box-type transformer, a high-low voltage power distribution cabinet, an urban street lamp pole cabinet or a transformer substation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323057037.1U CN220913730U (en) | 2023-11-13 | 2023-11-13 | Electric shock prevention alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323057037.1U CN220913730U (en) | 2023-11-13 | 2023-11-13 | Electric shock prevention alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220913730U true CN220913730U (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323057037.1U Active CN220913730U (en) | 2023-11-13 | 2023-11-13 | Electric shock prevention alarm device |
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| Country | Link |
|---|---|
| CN (1) | CN220913730U (en) |
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2023
- 2023-11-13 CN CN202323057037.1U patent/CN220913730U/en active Active
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