CN219695837U - Power distribution cabinet electric shock prevention alarm device - Google Patents
Power distribution cabinet electric shock prevention alarm device Download PDFInfo
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- CN219695837U CN219695837U CN202320962926.3U CN202320962926U CN219695837U CN 219695837 U CN219695837 U CN 219695837U CN 202320962926 U CN202320962926 U CN 202320962926U CN 219695837 U CN219695837 U CN 219695837U
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- 238000001514 detection method Methods 0.000 claims abstract description 86
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 9
- 238000005457 optimization Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
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Abstract
The utility model relates to the technical field of electric shock protection of medium-voltage distribution devices, in particular to an electric shock protection alarm device of a power distribution cabinet. According to the utility model, the power distribution cabinet is electrified and the cabinet door is automatically alarmed when opened through the alarm trigger circuit and the alarm circuit, so that the number of times of casualties caused by electric shock is reduced, and the action detection module judges whether the back door is opened or not through respectively using two devices, namely the back door position switch and the infrared detector, thereby increasing the reliability of the device.
Description
Technical Field
The utility model relates to the technical field of electric shock protection of medium-voltage distribution devices, in particular to an electric shock protection alarm device for a power distribution cabinet.
Background
The switch board is the cabinet body that has integrated the electrical component that is used for electric energy distribution, and the effect of switch board is to carrying out distribution and control to the consumer, obtains extensive application in our daily life and mill, and the switch board that uses often at present is when opening the cabinet door, does not have a reliable alarm device to remind operating personnel switch board whether electrified, in actual maintenance operation, operating personnel mistakenly gets into electrified switch board, causes the accident that electric shock casualties is very many.
Disclosure of Invention
The utility model provides an electric shock prevention alarm device for a power distribution cabinet, which overcomes the defects of the prior art and can effectively solve the problem of more accidents of electric shock casualties caused by the fact that an operator wrongly enters the power distribution cabinet without knowledge under the condition of electrification of the power distribution cabinet.
The technical scheme of the utility model is realized by the following measures: the alarm trigger circuit comprises an action detection module, a high-voltage live detection device and an intermediate relay coil, wherein the input end of the action detection module is connected with a positive bus of a power supply, the output end of the action detection module is connected with the input end of an output contact of the high-voltage live detection device, the output end of the output contact of the high-voltage live detection device is connected with the input end of the intermediate relay coil, the output end of the intermediate relay coil is connected with a negative bus of the power supply, the alarm circuit comprises an intermediate relay normally open contact and an alarm module, the input end of the intermediate relay normally open contact is connected with the positive bus of the power supply, the output end of the intermediate relay normally open contact is connected with the input end of the alarm module, and the output end of the alarm module is connected with the negative bus of the power supply.
The following are further optimizations and/or improvements to the above-described inventive solution:
the motion detection module can comprise an infrared detector, the infrared detector is installed inside the power distribution cabinet, the input end of a contact point of the infrared detector is connected with a positive bus of a power supply, and the output end of the contact point of the infrared detector is connected with the output contact point of the high-voltage electrified detection device.
The motion detection module may further include a back door position switch, and the back door position switch contact is connected in parallel with two ends of the infrared detector contact.
The alarm module can comprise an optical character alarm and an audible and visual alarm, wherein the input end of the first normally open contact of the intermediate relay and the input end of the second normally open contact of the intermediate relay are connected with the positive bus of the power supply, the output end of the first normally open contact of the intermediate relay is connected with the optical character alarm, the optical character alarm is connected with the negative bus of the power supply, the output end of the second normally open contact of the intermediate relay is connected with the audible and visual alarm, and the audible and visual alarm is connected with the negative bus of the power supply.
The high-voltage live detection device can comprise a high-voltage live detection device body and a live detection sensor, wherein the high-voltage live detection device body is arranged outside the power distribution cabinet, the live detection sensor is positioned in the power distribution cabinet, and the live detection sensor is electrically connected with the high-voltage live detection device.
The distance between the live detection sensor and the high-voltage cable can be more than or equal to twelve centimeters.
The utility model has reasonable and compact structure, realizes that the power distribution cabinet is electrified and automatically gives an alarm when the cabinet door is opened through the alarm trigger circuit and the alarm circuit, and reduces the times of personnel electric shock casualty accidents. The power distribution cabinet door is opened or not through the rear door position switch and the infrared detector, so that damage of the power distribution cabinet door is effectively avoided, the problem that an error occurs in an alarm of the device is solved, and the use reliability of the device is improved. The alarm module effectively increases the effectiveness of alarm through various alarm modes.
Drawings
Fig. 1 is a schematic diagram of a circuit connection relationship according to an embodiment of the present utility model.
Fig. 2 is a side view of the internal structure of the power distribution cabinet according to the embodiment of the utility model.
Fig. 3 is a rear view of the internal structure of the power distribution cabinet according to the embodiment of the utility model.
The codes in the drawings are respectively: 1 is a power distribution cabinet, 2 is an electrified detection sensor, 3 is a high-voltage cable, 4 is an infrared detector, 5 is an optical character alarm, 6 is an audible-visual alarm, 7 is a back door position switch, A1 is an alarm trigger circuit, A2 is an alarm circuit, B1 is an action detection module, B2 is an alarm module, K1 is an infrared detector contact, K2 is a back door position switch contact, K3 is an output contact of the high-voltage electrified detection device, JZ is an intermediate relay coil, JZE1 is an intermediate relay first normally open contact, JZE is an intermediate relay second normally open contact, GZ is an optical character alarm, and SG is an audible-visual alarm.
Detailed Description
The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of the drawings in the specification, such as: the positional relationship of the upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawing of the specification.
The utility model is further described below with reference to examples and figures:
in embodiment 1, as shown in fig. 1, 2 and 3, the electric shock protection alarm device of the power distribution cabinet comprises an alarm trigger circuit A1 and an alarm circuit A2, wherein the alarm trigger circuit A1 comprises an action detection module B1, a high-voltage live detection device and an intermediate relay coil JZ, the input end of the action detection module B1 is connected with a positive bus of a power supply, the output end of the action detection module B1 is connected with the input end of an output contact K3 of the high-voltage live detection device, the output end of the output contact K3 of the high-voltage live detection device is connected with the input end of the intermediate relay coil JZ, the output end of the intermediate relay coil JZ is connected with a negative bus of the power supply, the alarm circuit A2 comprises an intermediate relay normally open contact JZE and an alarm module B2, the input end of the intermediate relay normally open contact is connected with the positive bus of the power supply, and the output end of the intermediate relay normally open contact is connected with the input end of the alarm module B2.
The alarm trigger circuit A1 is used for detecting whether the power distribution cabinet 1 is electrified and whether the cabinet door is opened, when the power distribution cabinet 1 is electrified and the cabinet door is opened, the alarm trigger circuit A1 is conducted and generates an alarm trigger signal to trigger the alarm circuit A2, wherein the action detection module B1 detects whether the cabinet door of the power distribution cabinet 1 is opened, when the cabinet door is closed, the action detection module B1 is equivalent to open circuit, and when the cabinet door is opened, the action detection module B1 is conducted. The high-voltage live detection device can use a high-voltage live detection device with the model of DXN-101Q, an output contact K3 of the high-voltage live detection device (the output contact K3 of the high-voltage live detection device is a group of normally open contacts of the high-voltage live detection device) is connected with the action detection module B1 in series, the high-voltage live detection device detects whether the power distribution cabinet 1 is electrified, and when the power distribution cabinet 1 is electrified, the output contact K3 of the high-voltage live detection device is conducted. The intermediate relay coil JZ is connected with the output contact K3 of the high-voltage electrified detection device in series, when the action detection module B1 is simultaneously conducted with the output contact K3 of the high-voltage electrified detection device, the intermediate relay coil JZ is electrified to generate an alarm trigger signal, so that the normally open contact of the intermediate relay is closed, and when the normally open contact of the intermediate relay is closed, the alarm circuit A2 is conducted, so that the alarm module B2 gives an alarm to remind an operator of the electric danger. When the cabinet door of the power distribution cabinet 1 is in a closed state or the cabinet body of the power distribution cabinet 1 is not electrified, the intermediate relay coil JZ is powered off, the normally open contact of the intermediate relay is disconnected, and the alarm circuit A2 is disconnected and does not alarm.
The embodiment discloses switch board protection against electric shock alarm device simple structure, with low costs, whether realize switch board 1 cabinet door and whether switch board 1 electrified detection through alarm trigger circuit A1 and alarm circuit A2, when judging switch board 1 cabinet door and opening and switch board 1 electrified, in time report to the police through alarm circuit A2, warn the staff and do not operate switch board 1, reduce the number of times of personnel's electric shock casualties accident from this.
In embodiment 2, as shown in fig. 1, 2 and 3, this embodiment is a further optimization of the foregoing embodiment, and in the electric shock protection alarm device for a power distribution cabinet, the motion detection module B1 further includes an infrared detector 4, where the infrared detector 4 is installed at a position corresponding to the left side of the door frame of the cabinet door below the inside of the power distribution cabinet 1, the input end of the infrared detector contact K1 is connected with the positive bus of the power supply, and the output end of the infrared detector contact K1 is connected with the output contact K3 of the high-voltage live detection device.
In the above embodiment, the infrared detector 4 detects whether the cabinet door is opened, and when the cabinet door is opened, the contacts (i.e. a group of normally open contacts of the infrared detector 4) of the infrared detector 4 are conducted and cooperate with the output contact K3 of the high-voltage electrified detection device to generate an alarm trigger signal.
In embodiment 3, as shown in fig. 1, 2 and 3, this embodiment is a further optimization of the foregoing embodiment, and in the electric shock protection alarm device for a power distribution cabinet, the action detection module B1 further includes a back door position switch 7, where the back door position switch 7 is installed above the infrared detector 4, and the back door position switch contact K2 is connected in parallel with two ends of the infrared detector contact K1.
In the above embodiment, the rear door position switch contact K2 is a normally open contact, and after the rear door position switch 7 detects that the cabinet door of the power distribution cabinet 1 is opened, the rear door position switch contact K2 is immediately closed.
In the embodiment, whether the cabinet door of the power distribution cabinet 1 is opened or not is judged doubly by using the two devices of the rear door position switch 7 and the infrared detector 4, so that the damage of the cabinet door is effectively avoided, the problem that an error occurs in the alarm of the device is solved, and the use reliability of the device is improved.
In embodiment 4, as shown in fig. 1, 2 and 3, this embodiment is a further optimization of the foregoing embodiment, in the electric shock protection alarm device for a power distribution cabinet, the alarm module B2 further includes an optical character alarm GZ and an audible and visual alarm SG, the input end of the first normally open contact JZE1 of the intermediate relay and the input end of the second normally open contact JZE2 of the intermediate relay are both connected with the positive bus of the power supply, the output end of the first normally open contact JZE of the intermediate relay is connected with the optical character alarm GZ, the optical character alarm GZ is connected with the negative bus of the power supply, the output end of the second normally open contact JZE of the intermediate relay is connected with the audible and visual alarm SG, and the audible and visual alarm SG is connected with the negative bus of the power supply.
When the power distribution cabinet 1 is electrified and the cabinet door is opened, the first normally open contact JZE of the intermediate relay and the second normally open contact JZE of the intermediate relay are conducted, so that the light character alarm GZ continuously emits light and displays a character of 'danger with electricity', meanwhile, the sound-light alarm SG continuously emits light and gives out alarm sound, and when the cabinet door of the power distribution cabinet 1 is in a closed state or the power distribution cabinet 1 is not electrified, the first normally open contact JZE of the intermediate relay and the second normally open contact JZE of the intermediate relay are disconnected, and the alarm is stopped.
In the above embodiment, the alarm module B2 uses various alarm modes, so as to effectively ensure the validity of the alarm.
Embodiment 5, as shown in fig. 1, 2 and 3, this embodiment is a further optimization of the foregoing embodiment, and in the power distribution cabinet electric shock protection alarm device, the high voltage live detection device further includes a high voltage live detection device body and a live detection sensor 2, the high voltage live detection device body is disposed outside the power distribution cabinet 1, the live detection sensor 2 is located in the power distribution cabinet 1, and the live detection sensor 2 is electrically connected with the high voltage live detection device body.
In the above embodiment, the high-voltage live detection device body and the live detection sensor 2 are both of the prior art, and the model of the high-voltage live detection device body and the live detection sensor 2 may be DXN-101Q, and based on the structure, the live detection sensor 2 detects whether the power distribution cabinet 1 is electrified, and when the power distribution cabinet 1 is electrified, the output contact K3 of the high-voltage live detection device is turned on, and cooperates with the action detection module B1 to generate an alarm trigger signal.
Embodiment 6, this embodiment is a further optimization of the foregoing embodiment, and in the electric shock protection alarm device for a power distribution cabinet, the distance between the live detection sensor 2 and the high-voltage cable 3 is greater than or equal to twelve centimeters according to needs.
The technical characteristics form the optimal embodiment of the utility model, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (8)
1. An electric shock prevention alarm device for a power distribution cabinet is characterized in that: the alarm trigger circuit comprises an action detection module, a high-voltage live detection device and an intermediate relay coil, wherein the input end of the action detection module is connected with a positive bus of a power supply, the output end of the action detection module is connected with the input end of an output contact of the high-voltage live detection device, the output end of the output contact of the high-voltage live detection device is connected with the input end of the intermediate relay coil, the output end of the intermediate relay coil is connected with a negative bus of the power supply, the alarm circuit comprises an intermediate relay normally open contact and an alarm module, the input end of the intermediate relay normally open contact is connected with the positive bus of the power supply, the output end of the intermediate relay normally open contact is connected with the input end of the alarm module, and the output end of the alarm module is connected with the negative bus of the power supply.
2. The power distribution cabinet electric shock prevention alarm device according to claim 1, wherein: the action detection module comprises an infrared detector, the infrared detector is arranged inside the power distribution cabinet, the input end of a contact point of the infrared detector is connected with a positive bus of a power supply, and the output end of the contact point of the infrared detector is connected with the input end of an output contact point of the high-voltage electrified detection device.
3. The power distribution cabinet electric shock prevention alarm device according to claim 2, wherein: the motion detection module further comprises a back door position switch, and the contact point of the back door position switch is connected with two ends of the contact point of the infrared detector in parallel.
4. A power distribution cabinet anti-electric shock alarm device according to claim 1 or 2 or 3, characterized in that: the alarm module comprises an optical character alarm and an audible and visual alarm, wherein the input end of a first normally open contact of the intermediate relay and the input end of a second normally open contact of the intermediate relay are connected with a positive bus of a power supply, the output end of the first normally open contact of the intermediate relay is connected with the optical character alarm, the optical character alarm is connected with a negative bus of the power supply, the output end of the second normally open contact of the intermediate relay is connected with the audible and visual alarm, and the audible and visual alarm is connected with the negative bus of the power supply.
5. The electric shock prevention alarm device for a power distribution cabinet according to claim 1 or 2, wherein: the high-voltage live detection device comprises a high-voltage live detection device body and a live detection sensor, wherein the high-voltage live detection device body is arranged outside the power distribution cabinet, the live detection sensor is located in the power distribution cabinet, and the live detection sensor is electrically connected with the high-voltage live detection device.
6. A power distribution cabinet electric shock prevention alarm device according to claim 3, characterized in that: the high-voltage live detection device comprises a high-voltage live detection device body and a live detection sensor, wherein the high-voltage live detection device body is arranged outside the power distribution cabinet, the live detection sensor is located in the power distribution cabinet, and the live detection sensor is electrically connected with the high-voltage live detection device.
7. The electric shock prevention alarm device for a power distribution cabinet according to claim 5, wherein: the distance between the electrified detection sensor and the high-voltage cable is more than or equal to twelve centimeters.
8. The power distribution cabinet electric shock prevention alarm device according to claim 6, wherein: the distance between the electrified detection sensor and the high-voltage cable is more than or equal to twelve centimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962926.3U CN219695837U (en) | 2023-04-25 | 2023-04-25 | Power distribution cabinet electric shock prevention alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962926.3U CN219695837U (en) | 2023-04-25 | 2023-04-25 | Power distribution cabinet electric shock prevention alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219695837U true CN219695837U (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320962926.3U Active CN219695837U (en) | 2023-04-25 | 2023-04-25 | Power distribution cabinet electric shock prevention alarm device |
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| Country | Link |
|---|---|
| CN (1) | CN219695837U (en) |
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2023
- 2023-04-25 CN CN202320962926.3U patent/CN219695837U/en active Active
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