CN220913272U

CN220913272U - Integrated arc detection box

Info

Publication number: CN220913272U
Application number: CN202322502860.2U
Authority: CN
Inventors: 孙海威; 陆飞
Original assignee: Adidi Electric Suzhou Co ltd
Current assignee: Adidi Electric Suzhou Co ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-05-07
Anticipated expiration: 2033-09-14

Abstract

The utility model discloses an integrated arc detection box, which comprises a box body, wherein the box body defines a test cavity for placing a test circuit, and the test circuit comprises a power interface connected in series, wherein the power interface is used for connecting an external power supply; the test interface is used for connecting a product to be tested; the testing device comprises an arc generator, a carbonization wire and a change-over switch, wherein the arc generator and the carbonization wire are connected in parallel, the arc generator and the carbonization wire which are connected in parallel are connected in series with the change-over switch, and the change-over switch is used for switching the arc generator and the carbonization wire so that only one of the arc generator and the carbonization wire is conducted with the testing interface. The detection box meets various test requirements and is convenient to carry.

Description

Integrated arc detection box

Technical Field

The utility model relates to the technical field of electric safety detection, in particular to an integrated arc detection box.

Background

With the global great popularization of fault arc protection products, related products are used in a large quantity, and the problems caused by the global popularization are the inspection and acceptance of the related products. National Standard GB 14287.4-2014 electric fire monitoring System part 4: the fault arc detector and general requirements of GB/T31143-2014 arc fault protection device (AFDD) prescribe a series of tests on fault arc protection products, and the tests are carried out in specific test environments and equipment. However, at present, it is not convenient, quick and accurate to test the fault arc detector at the user end, so that an arc detection box is needed to facilitate the detection of the arc. The existing arc detection box has single function, can only simulate series fault arcs to perform arc discharge detection, and cannot give consideration to other arc detection, such as arc detection during carbonization of a cable, or can not give consideration to other arc detection by adopting a simple circuit structure.

Disclosure of utility model

In order to overcome the defects, the utility model aims to provide an integrated arc detection box which meets various testing requirements and is convenient to carry.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an integrated arc detection box comprises a box body, wherein the box body is used for limiting a test cavity for placing a test circuit, the test circuit comprises a power interface connected in series, and the power interface is used for being connected with an external power supply; the test interface is used for connecting a product to be tested; the testing device comprises an arc generator, a carbonization wire and a change-over switch, wherein the arc generator and the carbonization wire are connected in parallel, the arc generator and the carbonization wire which are connected in parallel are connected in series with the change-over switch, and the change-over switch is used for switching the arc generator and the carbonization wire so that only one of the arc generator and the carbonization wire is conducted with the testing interface.

The utility model has the beneficial effects that: the power interface, the test interface and the test device form a loop, the power interface supplies power, and the product inserted at the test interface is tested. On one hand, the series arc can be generated through the arc generator, the arc generation condition is simulated, the arc test of the product is carried out, and on the other hand, whether the product has an electric safety monitoring function can be detected through carbonized wires. The change-over switch enables one of the arc generator and the carbonized conducting wire to be connected with the test circuit, and can be switched according to actual test requirements, so that the multifunctional detection of the detection box is met.

Further, the arc generator comprises a fixed electrode and a coaxially arranged movable electrode, and the movable electrode can reciprocate along the axis to approach or separate from the fixed electrode under the drive of the linear driving assembly. An arc is generated when the fixed electrode and the movable electrode are contacted and separated.

Furthermore, the fixed electrode is a carbon rod with a cylindrical structure, and the movable electrode is a copper rod with a cylindrical structure.

Further, the fixed electrode and the movable electrode are respectively fixed on a fixed seat and a movable seat, the fixed seat is fixed in the test cavity, the movable seat is fixed on a sliding table, and the sliding table is connected with the linear driving assembly.

Further, the detection circuit further comprises a controller connected in series, and the controller is used for controlling the on-off of the test circuit to adjust the arc waveform and the number of the test device. The controller controls the power-on time of the test circuit according to the setting, so as to realize the adjustment of the power-on time of the test device, change the waveform and the quantity of the electric arcs and meet the test requirement.

Further, the testing device is fixed on an insulating plate, the insulating plate is located in the testing cavity, and the box body comprises an observation plate corresponding to the insulating plate. The observation plate is a transparent plate, and the working condition of the arc generator or the carbonized wire is observed through the observation plate, so that the safety is improved.

Furthermore, the box body further comprises an operation plate positioned above the observation plate, and the test interface and the change-over switch are both arranged on the operation plate.

Further, the operation board is further provided with a current voltmeter, a load interface and a power switch, the current voltmeter is used for detecting the current and the voltage of the test circuit, the power switch is used for starting and stopping the test circuit, and the load interface is connected with the test device in series.

Furthermore, the side and the top of the box body are provided with handles, so that the box body is convenient to carry and can be used in various places.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a side view of an embodiment of the present utility model;

fig. 3 is a circuit diagram of an embodiment of the present utility model.

In the figure:

1. A case; 11. a test chamber; 12. an insulating plate; 13. an operation panel; 2. a power interface; 3. testing an interface; 4. an arc generator; 41. fixing the electrode; 42. a moving electrode; 43. a fixing seat; 44. a movable seat; 45. a sliding table; 46. a linear drive assembly; 5. carbonizing the wire; 6. a change-over switch; 7. a controller; 8. an ammeter; 9. a load interface; 10. and a power switch.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

In an embodiment of the utility model, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different structures of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and do not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present utility model provide examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 and 2, the integrated arc detection box of the utility model comprises a box body 1, wherein the front end of the box body 1 is opened, the box body 1 defines a test cavity 11 for placing a test circuit, and the test circuit comprises a power interface 2, a test interface 3 and a test device which are connected in series.

The power interface 2 is used for connecting an external power supply; the test interface 3 is used for connecting a product to be tested; the testing device comprises an arc generator 4, a carbonization wire 5 and a change-over switch 6, wherein the arc generator 4 and the carbonization wire 5 are connected in parallel, the arc generator 4 and the carbonization wire 5 which are connected in parallel are connected in series with the change-over switch 6, and the change-over switch 6 is used for switching the arc generator 4 and the carbonization wire 5 so that only one of the arc generator 4 and the carbonization wire 5 is conducted with the testing interface 3.

In this embodiment, the power interface 2, the test interface 3 and the test device form a loop, and the power interface 2 supplies power to test the product inserted at the test interface 3. On one hand, the series arc can be generated through the arc generator 4, the arc generation condition is simulated, the arc test of the product is carried out, and on the other hand, whether the product has an electrical safety monitoring function can be detected through the carbonized wire 5. The change-over switch 6 allows one of the arc generator 4 and the carbonization lead 5 to be connected into a test circuit, and can be switched according to actual test requirements, thereby meeting the multifunctional detection of the detection box.

The test circuit further comprises a load interface 9, a power switch 10, a relay KM1 and a relay KM2, which are connected in series with the power interface 2, the test interface 3 and the test device. The power switch 10 is used for opening and closing the test circuit, and the load interface 9 is used for accessing a load.

Referring to fig. 3, the load is connected to the test circuit through the load interface 9, the power interface 2 can be directly connected with the mains supply, when the power switch 10 is opened, the contact of the relay KM1 is closed, the test interface 3 is started, and the product is connected to the test circuit. After the product is connected, the CGQ contact of the sensor switch is closed, the contact of the relay KM2 is closed, the arc generator 4 or the carbonization wire 5 is started, an adjustable fault arc or a simulated carbonization wire 5 is generated, an actual field fault arc is automatically simulated, after the relay KM1 and the relay KM2 reach a set time, the contact is disconnected, whether the product is qualified or not is judged through whether the product is tripped, and the detection is completed.

In one embodiment, the test circuit is further connected with a current-voltage meter 8, and the current-voltage meter 8 is used for displaying the voltage value and the current value of the test circuit, so that an operator can observe the voltage value and the current value to ensure the use safety of the circuit.

Referring to fig. 1, the box 1 further includes an operation board 13 at the opening, and the test interface 3, the change-over switch 6, the ammeter 8, the load interface 9 and the power switch 10 are all disposed on the operation board 13, so as to facilitate the operation of a tester.

Referring to fig. 3, the switch 6 is a single-pole double-throw switch, and the common end a of the single-pole double-throw switch is connected to the relay KM2, that is, is always connected to the test circuit, and the switch end b and the switch end c of the single-pole double-throw switch are respectively connected to one ends of the arc generator 4 and the carbonization wire 5, and the other ends of the arc generator 4 and the carbonization wire 5 are connected to the test circuit. By rotating the change-over switch 6, the arc generator 4 or the carbonized wire 5 is connected to the test circuit to realize different tests.

Referring to fig. 1, the testing device is fixed on an insulating board 12, the insulating board 12 is located in the testing cavity 11, and the box 1 comprises a viewing board corresponding to the insulating board 12. The observation plate is a transparent plate, and the working condition of the arc generator or the carbonized conducting wire 5 is observed through the observation plate, so that the safety is improved.

In one embodiment, the operator panel 13 is positioned directly above the viewing panel for ease of operation.

Referring to fig. 1 and 3, the detection circuit further comprises a controller 7 connected in series, and the controller 7 is used for controlling the on-off of the test circuit to adjust the arc waveform and the number of the test device. The controller 7 is fixed on the insulating board 12, and the controller 7 controls the power-on time of the test circuit according to the setting so as to realize the adjustment of the power-on time of the test device, change the waveform and the quantity of the electric arcs and meet the test requirement.

Referring to fig. 2, the arc generator 4 includes a fixed electrode 41 and a coaxially disposed movable electrode 42, and the movable electrode 42 is reciprocally movable along an axis to approach or separate from the fixed electrode 41 by a linear driving assembly 46. An arc is generated when the fixed electrode 41 and the moving electrode 42 are contacted and separated.

The fixed electrode 41 and the movable electrode 42 are respectively fixed on a fixed seat 43 and a movable seat 44, the fixed seat 43 is fixed in the test cavity 11, the movable seat 44 is fixed on a sliding table 45, and the sliding table 45 is connected with a linear driving assembly 46. The linear driving assembly 46 may be a cylinder or a screw assembly, so long as the sliding table 45 can be driven to move linearly.

The fixed electrode 41 is a carbon rod with a cylindrical structure, and the movable electrode 42 is a copper rod with a cylindrical structure.

Referring to fig. 1, the carbonized wire 5 is a two-core cable.

The side and the top of the box body 1 are provided with handles, the box body 1 is a shell made of aluminum alloy materials, and the inner surface and the outer surface of the shell are provided with insulating layers processed by adopting an electrostatic plastic spraying process. The interior of the housing may be 304 stainless steel panels. The appearance of the box body 1 is attractive, the structure is firm, and the operation safety is improved.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. An integral type electric arc detects case, includes the box, the box prescribes a limit to and forms a test chamber of placing test circuit, its characterized in that: the test circuit comprises in series

The power supply interface is used for connecting an external power supply;

the test interface is used for connecting a product to be tested;

The testing device comprises an arc generator, a carbonization wire and a change-over switch, wherein the arc generator and the carbonization wire are connected in parallel, the arc generator and the carbonization wire which are connected in parallel are connected in series with the change-over switch, and the change-over switch is used for switching the arc generator and the carbonization wire so that only one of the arc generator and the carbonization wire is conducted with the testing interface.

2. The integrated arc detection box of claim 1, wherein: the arc generator comprises a fixed electrode and a coaxially arranged movable electrode, and the movable electrode can reciprocate along an axis to approach or depart from the fixed electrode under the drive of a linear driving assembly.

3. The integrated arc detection box of claim 2, wherein: the fixed electrode is a carbon rod with a cylindrical structure, and the movable electrode is a copper rod with a cylindrical structure.

4. The integrated arc detection box of claim 2, wherein: the fixed electrode and the movable electrode are respectively fixed on the fixed seat and the movable seat, the fixed seat is fixed in the test cavity, the movable seat is fixed on the sliding table, and the sliding table is connected with the linear driving assembly.

5. The integrated arc detection box according to any one of claims 1 to 4, wherein: the test circuit also comprises a controller connected in series, and the controller is used for controlling the on-off of the test circuit so as to adjust the arc waveform and the quantity of the test device.

6. The integrated arc detection box of claim 1, wherein: the testing device is fixed on an insulating plate, the insulating plate is positioned in the testing cavity, and the box body comprises an observation plate corresponding to the insulating plate.

7. The integrated arc detection box of claim 6, wherein: the box body also comprises an operation plate positioned above the observation plate, and the test interface and the change-over switch are both arranged on the operation plate.

8. The integrated arc detection box of claim 7, wherein: the operation panel is also provided with a current voltmeter, a load interface and a power switch, wherein the current voltmeter is used for detecting the current and the voltage of the test circuit, the power switch is used for starting and stopping the test circuit, and the load interface is connected with the test device in series.

9. The integrated arc detection box of claim 1, wherein: the side and the top of the box body are provided with handles.