CN111064160B - Mobile distribution box - Google Patents
Mobile distribution box Download PDFInfo
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- CN111064160B CN111064160B CN201911346645.XA CN201911346645A CN111064160B CN 111064160 B CN111064160 B CN 111064160B CN 201911346645 A CN201911346645 A CN 201911346645A CN 111064160 B CN111064160 B CN 111064160B
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- 238000012806 monitoring device Methods 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 32
- 230000005283 ground state Effects 0.000 claims description 15
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/14—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to occurrence of voltage on parts normally at earth potential
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The application relates to a mobile distribution box, mobile distribution box includes earth connection, ground connection state monitoring devices, alarm device and controlling means. The grounding state monitoring device is electrically connected with the grounding wire and used for monitoring the grounding state of the grounding wire. The control device is in signal connection with the grounding state monitoring device and the alarm device. The control device is used for controlling the alarm device to work according to the monitoring information of the grounding state monitoring device. This embodiment provides mobile distribution box convenient to use is simple, can avoid the potential safety hazard.
Description
Technical Field
The application relates to a distribution safety monitoring technology field especially relates to a mobile distribution box.
Background
The grounding has very important function in the power supply and distribution system, and when the electricity is used for abnormal operation, lightning surge, equipment failure and other unexpected conditions, the safety of personnel and equipment can be effectively guaranteed through the drainage function of the grounding equipment.
The field construction needs the interim power consumption, can use the mobile distribution box usually, when installing the mobile distribution box, needs pile ground connection temporarily at the job site. In the conventional technology, a field constructor usually monitors whether a mobile distribution box is normally grounded by using a handheld grounding tester. However, the operation of the test equipment using the handheld ground tester is complicated, re-wiring, installation, debugging and the like are required for each monitoring operation, a professional is required for accurate operation, and it is often only in the initial stage of installation to test whether the ground is normal. Therefore, the grounding effect cannot be guaranteed, and potential safety hazards exist.
Disclosure of Invention
In view of the above, it is necessary to provide a mobile distribution box.
In order to achieve the above object, in one aspect, the present application provides a mobile distribution box, which includes:
a ground line;
the grounding state monitoring device is electrically connected with the grounding wire and used for monitoring the grounding state of the grounding wire;
an alarm device;
and the control device is in signal connection with the grounding state monitoring device and the alarm device and is used for controlling the alarm device to work according to the monitoring information of the grounding state monitoring device.
In one embodiment, the ground state monitoring device includes a resistance monitoring circuit for monitoring a resistance value of the ground line.
In one embodiment, the alarm device comprises:
an alarm component;
and the alarm control circuit is electrically connected with the alarm assembly and is in signal connection with the control device, and the control device is used for controlling the alarm control circuit to work so as to control the alarm assembly to send out an alarm signal.
In one embodiment, the alarm control circuit comprises:
the first circuit breaker is electrically connected with the alarm assembly;
the first relay is electrically connected with the first circuit breaker and is in signal connection with the control device, and the control device is used for controlling the first relay to work so as to control the on-off of the first circuit breaker.
In one embodiment, the method further comprises the following steps:
the first driver is connected between the control device and the first relay, and the control device is used for controlling the first driver to work so as to drive the first relay to work.
In one embodiment, the alarm assembly is an audible and visual alarm.
In one embodiment, the method further comprises the following steps:
and the control device is used for controlling the power supply protection device to work according to the information of the alarm device so as to cut off the power supply.
In one embodiment, the power protection apparatus includes:
a power line;
and the control device is used for controlling the power protection control circuit to work so as to control the on-off of the power line.
In one embodiment, the power protection control circuit includes:
a second circuit breaker electrically connected to the power line;
and the second relay is electrically connected with the second circuit breaker and is in signal connection with the control device, and the control device is used for controlling the second relay to work so as to control the on-off of the second circuit breaker.
In one embodiment, the method further comprises the following steps:
and the second driver is connected between the control device and the second relay, and the control device is used for controlling the second driver to work so as to drive the second relay to work.
The embodiment of the application provides mobile distribution box includes earth connection, ground connection state monitoring devices, alarm device and controlling means. The grounding state monitoring device is electrically connected with the grounding wire and used for monitoring the grounding state of the grounding wire. The control device is in signal connection with the grounding state monitoring device and the alarm device. The control device is used for controlling the alarm device to work according to the monitoring information of the grounding state monitoring device. The mobile distribution box that this embodiment provided easy operation is convenient, can be in real time, incessant monitoring in succession the ground connection state of earth connection, and, monitoring when the ground connection state is unusual, can propose the warning to site constructor, the safety of assurance constructor and equipment that can be better, improvement construction safety nature. Meanwhile, the mobile distribution box provided by the embodiment does not need constructors to monitor the grounding state of the grounding wire in real time, so that time waste can be avoided, and the working efficiency can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a mobile power distribution box according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a mobile power distribution box according to an embodiment of the present application;
fig. 3 is a schematic partial structural view of a mobile power distribution box according to an embodiment of the present application;
fig. 4 is a schematic partial structural view of a mobile power distribution box according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a mobile power distribution box according to an embodiment of the present application.
Description of reference numerals:
10. moving the distribution box;
100. a ground line;
200. a ground state monitoring device;
210. a resistance monitoring component;
300. an alarm device;
310. an alarm component;
320. an alarm control circuit;
321. a first circuit breaker;
322. a first relay;
400. a control device;
500. a first driver;
600. a power supply protection device;
610. a power line;
620. a power protection control circuit;
621. a second circuit breaker;
622. a second relay;
700. a second driver;
800. a socket;
810. a contactor is provided.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The mobile power distribution box 10 provided by the embodiment of the application can be applied to environments requiring temporary power utilization, such as field construction environments.
The following describes the technical solutions of the present application and how to solve the technical problems with the technical solutions of the present application in detail with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides a mobile power distribution box 10, including: the ground wire 100, the ground state monitoring device 200, the alarm device 300 and the control device 400.
The mobile power distribution box 10 may further include a power supply device 101, wherein the power supply device 101 supplies power to the mobile power distribution box 10 and the grounding status monitoring device 200. The power supply line of the mobile distribution box 10 includes a live line L, a neutral line N, and the ground line 100. The power supply device 101 supplies power to the mobile distribution box through the power supply line of the mobile distribution box 10. The ground state monitoring device 200 is electrically connected to the ground line 100 of the power supply line of the mobile distribution box 10, and may supply power to the ground state monitoring device 200, or may monitor the ground state of the ground line 100 of the mobile distribution box 10 by the ground state monitoring device 200.
The grounding state of the grounding wire 100 refers to whether the grounding wire 100 is normally grounded. The grounding state monitoring device 200 may determine the grounding state of the grounding line 100 by determining the resistance of the grounding line 100, or by determining other electrical conditions such as the current and voltage of the grounding line 100. In one embodiment, the grounding status monitoring device 200 determines whether the resistance of the grounding wire 100 is greater than 10 ohms, and if the resistance of the grounding wire 100 is greater than 10 ohms, the grounding wire 100 is abnormally grounded; if the resistance value of the grounding wire 100 is less than or equal to 10 ohms, the grounding wire 100 is normally grounded. This embodiment does not limit this, as long as the grounding state of the grounding wire 100 can be determined.
The control device 400 is in signal connection with both the grounding state monitoring device 200 and the alarm device 300. The control device 400 can control the operation of the alarm device 300 according to the monitoring information of the grounding state monitoring device 200. The alarm device 300 refers to a display device indicating the occurrence of a malfunction, accident or dangerous situation. The alarm device 300 may be an infrared alarm device, an audible alarm device, etc., and this embodiment does not limit this, and the user may select the alarm device according to the actual situation. The control apparatus 400 may be a computer device, which may be, but not limited to, various industrial computers, notebook computers, smart phones, tablet computers, portable wearable devices, and the like.
The working principle of the mobile power distribution box 10 provided by the embodiment is as follows:
and installing the grounding piles on a construction site, wherein the number of the grounding piles can be selected according to actual conditions. The power supply device 101 is electrically connected with the grounding pile, a power supply line of the mobile distribution box 10 is connected with the power supply device 101, and the mobile distribution box 10 and the grounding monitoring device 200 start to work. The ground monitoring device 200 monitors the ground state of the ground line 100, and the control device 400 determines whether the ground line 100 is grounded normally through the ground state, if the ground state of the ground line 100 is abnormal, the ground effect of the ground line 100 is poor. The control device 400 controls the alarm device 300 to start alarming to warn site operators, so that the site operators stop working and the grounding problem of the power supply device 101 is solved in time.
The mobile power distribution box 10 provided in this embodiment includes a ground wire 100, a ground state monitoring device 200, an alarm device 300, and a control device 400. The grounding state monitoring device 200 is electrically connected to the grounding line 100, and is configured to monitor a grounding state of the grounding line 100. The control device 400 is in signal connection with the grounding state monitoring device 200 and the alarm device 300. The control device 400 is used for controlling the alarm device 300 to work according to the monitoring information of the grounding state monitoring device 200. The mobile distribution box 10 provided by the embodiment is simple and convenient to operate, can continuously and uninterruptedly monitor the grounding state of the grounding wire 100 in real time, and can give a warning to field construction personnel when the grounding state of the grounding wire 100 is abnormal, so that the safety of the construction personnel and equipment can be better ensured, and the construction safety is improved. Meanwhile, the mobile distribution box 10 provided by the embodiment does not need a constructor to monitor the grounding state of the grounding wire 100 in real time, so that time waste can be avoided, and thus the working efficiency can be improved.
In one embodiment, the ground state monitoring device 200 includes a resistance monitoring circuit 210, and the resistance monitoring circuit 210 is used for monitoring the resistance value of the ground line 100. The resistance monitoring circuit 210 may be designed according to the structure and principle of an ohmmeter, or may obtain the resistance value of the ground line 100 through calculation by monitoring the current and the voltage of the ground line 100, where the current of the ground line 100 may be obtained by using a current meter or a current transformer, and the voltage of the ground line 100 may be obtained by using a voltage meter or a voltage transformer. The resistance monitoring circuit 210 may also be a bridge circuit, and the bridge circuit is composed of a resistor and a current meter. The resistance monitoring circuit 210 may also include only a voltage meter and a resistance, or only a current meter and a resistance. The present embodiment does not limit the specific structure of the resistance monitoring circuit 210, as long as the function thereof can be achieved. The design of the resistance monitoring circuit 210 provided in this embodiment may be an isolated design, which can ensure that the insulation impedance between the power supply device 101 and the ground wire 100 is greater than 1.5M Ω, avoid the ground wire 100 from injuring people with electricity, and ensure the safety of site operators.
Referring to fig. 2, in one embodiment, the alarm apparatus 300 includes an alarm component 310 and an alarm control circuit 320. The alarm control circuit 320 is electrically connected to the alarm assembly 310. The alarm component 310 may be a flashing light of various colors or a warning bell. The present embodiment does not set any limit to the kind, structure, etc. of the alarm component 310 and the alarm control circuit 320 as long as the functions thereof can be implemented. The alarm control circuit 320 is in signal connection with the control device 400, and the control device 400 is used for controlling the alarm control circuit 320 to operate so as to control the alarm component 310 to send out an alarm signal. When receiving the signal that the grounding state monitoring device 200 monitors the grounding abnormality of the grounding wire 100, the control device 400 controls the alarm control circuit 320 to start operating, so that the alarm component 310 emits the alarm signal of flashing light or alarming bell. After receiving the alarm signal, the field constructor learns that the grounding of the grounding wire 100 is abnormal, stops working, and can avoid the safety problem that the constructor works under the condition that the grounding of the grounding wire 100 is abnormal.
In one embodiment, the alarm component 310 is an audible and visual alarm. The audible and visual alarm can send out an alarm signal device for warning a constructor through sound and various lights. Audible-visual annunciator can be more comprehensive send to constructor alarm signal for constructor notices alarm signal more easily, thereby stops the construction, avoids the potential safety hazard.
Continuing to refer to fig. 2, in one embodiment, the alarm control circuit 320 includes: a first circuit breaker 321 and a first relay 322. The first circuit breaker 321 is electrically connected to the alarm assembly 310. The first relay 322 is electrically connected with the first circuit breaker 321, the first relay 322 is in signal connection with the control device 400, and the control device 400 is used for controlling the first relay 322 to work so as to control the on-off of the first circuit breaker 321. The first relay 322 is an electronic control device, which has a control system (also called input loop) and a controlled system (also called output loop), and is usually applied to an automatic control circuit, and it is actually an "automatic switch" that uses a small current to control a large current, and plays roles of automatic regulation, safety protection, switching circuit, and the like in the circuit. The first relay 322 may be an electromagnetic relay, or another relay, or the first breaker 321 may be replaced by a contactor having the same function as the first breaker 321. This embodiment does not set any limit to this. When receiving a signal that the ground state monitoring device 200 monitors the ground fault of the ground line 100, the control device 400 controls the first relay 322 to start operating. The first relay 322 may control the first circuit breaker 321 to close, thereby causing the alarm assembly 310 to issue the alarm signal. Therefore, the construction personnel can know the abnormal grounding condition of the grounding wire 100, and the safety of the construction personnel and equipment is ensured.
With continued reference to fig. 2, in one embodiment the mobile power distribution box 10 further includes a first drive 500. The first driver 500 is connected between the control device 400 and the first relay 322, and the control device 400 is configured to control the first driver 500 to operate so as to drive the first relay 322 to operate. When receiving a signal that the ground state monitoring device 200 monitors the ground fault of the ground line 100, the control device 400 controls the first driver 500 to start operating. The first driver 500 drives the first relay 322 to start working, thereby controlling the first breaker 321 to close. The first driver 500 may include a driving circuit, and the driving circuit may be a transistor driving circuit or an integrated circuit driving circuit, and the present embodiment does not limit the specific structure, kind, and the like of the first driver 500 as long as the function thereof can be achieved.
Referring to fig. 3, in an embodiment, the mobile power distribution box 10 further includes: the power protection device 600. The power protection device 600 is in signal connection with the control device 400, and the control device 400 is used for controlling the power protection device 600 to work according to the information of the alarm device 300 so as to cut off the power supply. When the grounding state monitoring device 200 monitors that the grounding state of the grounding wire 100 is abnormal, the alarm device 300 is controlled to send out an alarm signal. If the duration of the alarm signal of the alarm device 300 is longer than the preset duration, the control device 400 controls the power protection device 600 to start working, so that the power protection device 600 cuts off the power supply of the power device 101, the potential safety hazard existing in the process that the site constructor continues to construct without noticing the alarm signal of the alarm device 300 can be avoided, and the safety of the constructor and the equipment can be ensured. In a specific embodiment, the preset time period is set to 5 minutes. The power protection device 600 may be a power protector or a power protection circuit, and the present embodiment does not limit the type, structure, and the like of the power protection device 600, as long as the function of the device can be achieved.
Referring to fig. 4, in one embodiment, the power protection apparatus 600 includes a power line 610 and a power protection control circuit 620. The power line 610 includes a first live line L, a first neutral line N, and a first ground line, and is disposed in the power supply device 101. The power cord 610 the first live wire with the power supply line the live wire electricity is connected, the first zero line with the power supply line the zero line electricity is connected, the first earth connection with the power supply line the earth connection 100 electricity is connected. The power protection control circuit 620 is electrically connected to the power line 610, the power protection control circuit 620 is in signal connection with the control device 400, and the control device 400 is used for controlling the power protection control circuit 620 to work so as to control the on-off of the power line 610. The present embodiment does not limit the structure and composition of the power protection control circuit 620, as long as the function thereof can be achieved. When monitoring that the duration of the alarm signal of the alarm device 300 is greater than the preset duration, the control device 400 controls the power protection control circuit 620 to operate, so that the first live wire of the power line 610 and the live wire of the power supply line are disconnected, and the first zero wire and the zero wire of the power supply line are disconnected, so that the power supply device 101 stops supplying power to the mobile distribution box 10 and the grounding state monitoring device 200. In this way, when the ground wire 100 is abnormally grounded, the power supply of the power supply device 101 can be cut off in time, and the safety problem that the construction worker continues to work when the ground wire 100 is abnormally grounded can be avoided. In addition, in the embodiment, the control device 400 controls the power protection control circuit 620 to control the on/off of the power line 610, which is simple and convenient, does not need a constructor to operate, can reduce the time of the constructor, and can avoid the potential safety hazard of the constructor during operation.
With continued reference to fig. 4, in one embodiment, the power protection control circuit 620 includes a second circuit breaker 621 and a second relay 622. The second circuit breaker 621 is electrically connected to the power line 610. The second circuit breaker 621 is connected to both the first live line and the first zero line of the power line 610. The second relay 622 is electrically connected to the second circuit breaker 621, the second relay 622 is in signal connection with the control device 400, and the control device 400 is used for controlling the second relay 622 to work so as to control the on/off of the second circuit breaker 621. For the kind and structure of the second relay 622, reference may be made to the description of the first relay 322, and details will not be repeated herein. When the time length of monitoring the alarm signal is longer than the preset time length, the control device 400 controls the second relay 622 to start working. The second relay 622 can control the second circuit breaker 621 to open, so that the power line 610 is disconnected, and the power supply device 101 stops supplying power to the mobile power distribution box 10. Therefore, the safety of constructors and equipment can be ensured, and the operation is convenient and simple.
With continued reference to fig. 4, in an embodiment, the movable distribution box 10 further includes a second driver 700, the second driver 700 is connected between the control device 400 and the second relay 622, and the control device 400 is configured to control the second driver 700 to operate so as to drive the second relay 622 to operate. When the duration of monitoring the alarm signal is greater than the preset duration, the control device 400 controls the second driver 700 to start working. The second driver 700 drives the second relay 622 to start working, thereby controlling the second breaker 621 to open. The second driver 700 may include a driving circuit, which may be a transistor driving circuit or a legacy circuit driving circuit, and the present embodiment does not limit the specific structure, kind, and the like of the second driver 700, as long as the functions thereof can be realized. If the first relay 322 and the second relay 622 are of the same structure, type, etc., the first driver 500 and the second driver 700 may be the same driver, that is, the same driver may be used to control the operation of the first relay 322 and the second relay 622.
Referring to fig. 5, the mobile power distribution box 10 may further include a socket 800, and the socket 800 may be used for externally connecting an electric device. The second live wire, the second neutral wire and the second connection wire of the socket can be electrically connected with the live wire, the neutral wire and the ground wire 100 of the power supply line respectively through a contactor 810. The control device 400 is in signal connection with the contactor 810, and the control device 400 can control whether the socket 800 is electrified or not by controlling the on/off of the contactor 810. A plurality of the sockets 800 may be provided on the mobile power distribution box 10. Therefore, the mobile distribution box 10 can be connected with more external electric devices, and has stronger applicability.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A mobile power distribution box, comprising:
a ground line (100);
a grounding state monitoring device (200) electrically connected with the grounding wire (100) and used for monitoring the grounding state of the grounding wire (100);
an alarm device (300);
the control device (400) is in signal connection with the grounding state monitoring device (200) and the alarm device (300) and is used for controlling the alarm device (300) to send out an alarm signal according to monitoring information of the grounding state monitoring device (200);
the power supply protection device (600) is in signal connection with the control device (400), the control device (400) is used for controlling the power supply protection device (600) to start working according to the information of the alarm device (300) so as to cut off a power supply, wherein the information of the alarm device (300) is used for indicating that the duration of the alarm signal is greater than a preset duration;
wherein the power protection device (600) comprises:
the power line (610) comprises a first live wire, a first zero line and a first grounding wire, the first live wire is electrically connected with the live wire of the power supply circuit of the mobile distribution box, the first zero line is electrically connected with the zero line of the power supply circuit of the mobile distribution box, and the first grounding wire is electrically connected with the grounding wire (100);
a power protection control circuit (620) comprising a second circuit breaker (621) and a second relay (622), wherein the second circuit breaker (621) is electrically connected to both the first live wire and the first neutral wire; the second relay (622) is electrically connected with the second circuit breaker (621) and is in signal connection with the control device (400), and the control device (400) is used for controlling the second relay (622) to start working to control the second circuit breaker (621) to be disconnected when the duration of monitoring the alarm signal is longer than the preset duration;
and the second driver (700) is connected between the control device (400) and the second relay (622), and the control device (400) is used for controlling the second driver (700) to work so as to drive the second relay (622) to work.
2. The mobile power distribution box of claim 1, wherein the ground state monitoring device (200) comprises a resistance monitoring circuit (210), the resistance monitoring circuit (210) being configured to monitor a resistance value of the ground line (100).
3. The mobile power distribution box according to claim 1, characterized in that said alarm device (300) comprises:
an alarm assembly (310);
the alarm control circuit (320) is electrically connected with the alarm component (310) and is in signal connection with the control device (400), and the control device (400) is used for controlling the alarm control circuit (320) to work so as to control the alarm component (310) to send out an alarm signal.
4. The mobile power distribution box of claim 3, wherein the alarm control circuit (320) comprises:
a first circuit breaker (321) electrically connected to the alarm assembly (310);
the first relay (322) is electrically connected with the first circuit breaker (321) and is in signal connection with the control device (400), and the control device (400) is used for controlling the first relay (322) to work so as to control the on-off of the first circuit breaker (321).
5. The mobile power distribution box of claim 4, further comprising:
the first driver (500) is connected between the control device (400) and the first relay (322), and the control device (400) is used for controlling the first driver (500) to work so as to drive the first relay (322) to work.
6. The mobile power distribution box according to claim 5, characterized in that said first driver (500) comprises a driving circuit, said driving circuit being a transistor driving circuit or a successive circuit driving circuit.
7. The mobile power distribution box of claim 4, wherein the alarm assembly (310) is a sound and light alarm.
8. The mobile power distribution box of claim 1, wherein the mobile power distribution box (10) further comprises a socket (800);
the socket (800) is electrically connected with a power supply line of the mobile distribution box and used for externally connecting electric equipment.
9. The mobile power distribution box of claim 8, wherein said outlet (800) comprises a second live wire, a second neutral wire, and a second ground wire; the second live wire, the second zero line and the second ground wire are respectively and electrically connected with the live wire of the power supply circuit, the zero line of the power supply circuit and the ground wire (100) through a contactor (810);
the control device (400) is in signal connection with the contactor (810), and the control device (400) is used for controlling whether the socket (800) is electrified or not by controlling the on-off of the contactor (810).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346645.XA CN111064160B (en) | 2019-12-24 | 2019-12-24 | Mobile distribution box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346645.XA CN111064160B (en) | 2019-12-24 | 2019-12-24 | Mobile distribution box |
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| CN111064160A CN111064160A (en) | 2020-04-24 |
| CN111064160B true CN111064160B (en) | 2022-11-04 |
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