CN220795356U - Automatic detection device for grounding resistance of distribution box - Google Patents
Automatic detection device for grounding resistance of distribution box Download PDFInfo
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- CN220795356U CN220795356U CN202322504084.XU CN202322504084U CN220795356U CN 220795356 U CN220795356 U CN 220795356U CN 202322504084 U CN202322504084 U CN 202322504084U CN 220795356 U CN220795356 U CN 220795356U
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 11
- 230000000007 visual effect Effects 0.000 claims abstract description 9
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The utility model provides an automatic detection device for a grounding resistor of a distribution box, which comprises a voltage pulse coil and an induction current coil which are sleeved on a grounding circuit of the distribution box when in use, and a main control box for main control, wherein the main control box comprises a box body, a display module and an audible and visual alarm module which are arranged on the box body, and a circuit board and a power supply module which are arranged in the box body; when the power supply is used, the power supply module obtains electricity from the distribution box; the main control module is communicated with a remote site master monitoring station through a wireless communication module. When the utility model is used, the ground fault of the distribution box can be ensured to be found in time, the occurrence of site safety accidents is avoided, the manual detection in the prior art is effectively replaced, the labor cost is saved, and the detection efficiency and accuracy are improved.
Description
Technical Field
The utility model relates to the technical field of resistance detection, in particular to an automatic detection device for a grounding resistance of a distribution box.
Background
Large construction sites require the installation and use of a large number of electrical boxes to provide power for various machinery, equipment work, and venue lighting. It is known that, in order to ensure electrical safety, the distribution box needs to be provided with a grounding loop (or simply a grounding wire or a PE wire) to prevent the distribution box from causing safety production accidents due to electric leakage in a working environment with complex and severe construction sites, so that whether the grounding loop of the distribution box is effectively grounded or not is important in the working process, and therefore, the grounding loop of the distribution box needs to be frequently detected to prevent the grounding loop of the distribution box from being damaged or not being reliably grounded. Whether the grounding loop of the distribution box works normally or not is generally judged by measuring the resistance value of the grounding loop. At present, the resistance value of the ground loop of the distribution box on the site is generally detected manually by using related tools, the labor intensity of related personnel is high, time and labor are wasted, the labor cost is high, and the detection accuracy and reliability are insufficient.
Disclosure of utility model
The purpose of the utility model is that: in order to solve the problem existing in the prior art, a block terminal earth resistance automatic checkout device is provided.
The technical scheme of the utility model is as follows: the utility model relates to an automatic detection device for the grounding resistance of a distribution box, which is structurally characterized in that: the intelligent power supply comprises a voltage pulse coil and an induction current coil which are sleeved on a grounding loop of a distribution box when in use, and a main control box for main control, wherein the main control box comprises a box body, a circuit board and a power supply module which are arranged in the box body, a sampling module, a wireless communication module and the main control module are arranged on the circuit board, the sampling module and the wireless communication module are respectively and electrically connected with the main control module, the voltage pulse coil and the induction current coil are electrically connected with the sampling module, and the power supply module is used for providing a working power supply; when in use, the input end of the power module is electrically connected with the power output end of the distribution box; the main control module is communicated with a remote site master monitoring station through a wireless communication module.
The further scheme is as follows: the main control box further comprises a display module which is fixedly arranged on the box body and used for displaying information, and the display module is electrically connected with the main control module.
The further scheme is as follows: the main control box further comprises an audible and visual alarm module which is fixedly arranged on the box body and used for sending alarm signals on site, and the audible and visual alarm module is electrically connected with the main control module.
The utility model has the positive effects that: (1) According to the utility model, through the design of the integral structure, the ground loop resistance of the distribution box can be automatically detected during use, detection data is uploaded to the remote site master monitoring station in real time, and when the detection result is abnormal, the remote site master monitoring station can be alerted and simultaneously automatically and locally send out audible and visual alarms, so that the ground fault of the distribution box can be ensured to be timely found, and the occurrence of site safety accidents is avoided. (2) The utility model has the advantages of simple integral structure, low cost and convenient installation, can replace the existing manual detection mode, saves the operation cost of manpower and enterprises, has more accurate detection result and quicker and more convenient abnormal alarm.
Drawings
Fig. 1 is a schematic block diagram of the overall circuit configuration of the present utility model, also showing its electrical connection to the utility box.
The reference numerals in the above figures are as follows:
voltage pulse coil 1, induced current coil 2, main control box 3, distribution box ground loop 100.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
Example 1
Referring to fig. 1, the automatic detection device for the grounding resistance of the distribution box in the embodiment mainly comprises a voltage pulse coil 1, an induction current coil 2 and a main control box 3.
When the voltage pulse coil 1 is used, the voltage pulse coil is sleeved on the distribution box grounding loop 100, and is used for inducing a pulse potential E on the distribution box grounding loop 100 through a voltage pulse signal output by the main control box 3, and a loop current I is correspondingly generated on the distribution box grounding loop 100 under the action of the pulse potential E.
When the induction current coil 2 is used, the induction current coil is sleeved on the distribution box grounding loop 100 and is used for detecting the value of loop current I on the distribution box grounding loop 100 and sending the detected value of the loop current I to the main control box 3 in real time.
The main control box 3 is used for the main control of the automatic detection device of this embodiment, and the main control box 3 includes the box (not shown in the figure), locates circuit board and power module in the box and locates display module and audible and visual alarm module on the box, is equipped with sampling module, wireless communication module and main control module on the circuit board.
The sampling module is respectively and electrically connected with the main control module, the voltage pulse coil 1 and the induced current coil 2, outputs a voltage pulse signal to the voltage pulse coil 1 under the control of the main control module of the sampling module, and receives and transmits the value of loop current I on the distribution box grounding loop 100 detected and transmitted by the induced current coil 2 to the main control module.
The main control module is based on CPU constitution, and the main control module is used for controlling sampling module to output voltage pulse signal to voltage pulse coil 1, and the numerical value of the electric current I of block terminal ground return circuit 100 that the induced current coil 2 detected and sent is received, calculates block terminal ground return circuit 100's resistance value according to well-known calculation formula to compare with the threshold value of built-in block terminal ground return circuit 100's resistance value, when the real-time resistance value of block terminal ground return circuit 100 of detection is less than the threshold value of settlement, the main control module outputs alarm signal.
The wireless communication module is electrically connected with the main control module, and is used for communicating the main control module with a remote site master control station, so that information interaction between the main control module and the site master control station is realized, the main control module uploads the real-time resistance value of the distribution box grounding loop 100 to the site master control station through the wireless communication module, and the site master control station is alerted through the wireless communication module when the detection result is abnormal.
The display module is electrically connected with the main control module and is used for displaying information including the current resistance value of the distribution box grounding loop 100 and the like sent by the main control module on site. The display module is preferably provided.
The audible and visual alarm module is electrically connected with the main control module and is used for triggering alarm signals of alarm sound and flashing light by the main control module when the resistance of the grounding loop 100 of the distribution box is detected abnormally, so that the personnel on the construction site can find out in time. The audible and visual alarm module is arranged as a preferred mode.
The power module is used for providing the working power supply required by the automatic detection device for the grounding resistance of the distribution box of the embodiment, and the power module obtains electricity from the power output end of the distribution box, namely the input end of the power module is electrically connected with the power output end of the distribution box.
It should be noted that, the structure and working principle of each functional module of the main control box 3 are all mature prior art, and will not be described in detail.
The above embodiments are illustrative of the specific embodiments of the present utility model, and not restrictive, and various changes and modifications may be made by those skilled in the relevant art without departing from the spirit and scope of the utility model, and all such equivalent technical solutions are intended to be included in the scope of the utility model.
Claims (3)
1. Automatic detection device of block terminal earth resistance, its characterized in that: the intelligent power supply comprises a voltage pulse coil and an induction current coil which are sleeved on a distribution box grounding loop when in use, and a main control box for main control, wherein the main control box comprises a box body, a circuit board and a power supply module which are arranged in the box body, a sampling module, a wireless communication module and the main control module are arranged on the circuit board, the sampling module and the wireless communication module are respectively and electrically connected with the main control module, the voltage pulse coil and the induction current coil are electrically connected with the sampling module, and the power supply module is used for providing a working power supply; when in use, the input end of the power module is electrically connected with the power output end of the distribution box; the main control module is communicated with a remote site master monitoring station through a wireless communication module.
2. The automatic detection device for the ground resistance of the distribution box according to claim 1, wherein: the main control box further comprises a display module which is fixedly arranged on the box body and used for displaying information, and the display module is electrically connected with the main control module.
3. The automatic detection device for the ground resistance of the distribution box according to claim 1, wherein: the main control box further comprises an audible and visual alarm module which is fixedly arranged on the box body and used for sending alarm signals on site, and the audible and visual alarm module is electrically connected with the main control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322504084.XU CN220795356U (en) | 2023-09-14 | 2023-09-14 | Automatic detection device for grounding resistance of distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322504084.XU CN220795356U (en) | 2023-09-14 | 2023-09-14 | Automatic detection device for grounding resistance of distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220795356U true CN220795356U (en) | 2024-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322504084.XU Active CN220795356U (en) | 2023-09-14 | 2023-09-14 | Automatic detection device for grounding resistance of distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220795356U (en) |
-
2023
- 2023-09-14 CN CN202322504084.XU patent/CN220795356U/en active Active
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