CN213041979U

CN213041979U - Portable leakage current detection device with wireless communication function

Info

Publication number: CN213041979U
Application number: CN202022052828.5U
Authority: CN
Inventors: 李雪恺; 杨红权; 刘彦琴; 张治�; 刘鑫; 汪祺航; 邹经鑫; 袁明哲; 卢成楠; 曾祥力; 殷攀程; 毛骏怡; 卫佳奇; 王一雄; 卿俊杰; 赵志浩
Original assignee: Chengdu Power Supply Co Of State Grid Sichuan Electric Power Corp
Current assignee: Chengdu Power Supply Co Of State Grid Sichuan Electric Power Corp
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-23
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a portable leakage current detection device with wireless communication function relates to the wireless communication field, has solved the problem of the leakage current of the system main way or feeder branch road of standing under the unable measurement complex environment. The utility model discloses a 2 leakage current induction pincers, 2 adjustable leakage current induction coil and detect leakage current detection device bodies. The device collects leakage current through leakage current outside the leakage current detection device body and displays the leakage current on the liquid crystal display screen; vector summation is carried out on the collected current through a built-in controller, and a leakage current value during complex wiring is calculated; data communication among 3 devices is realized through the wireless communication module, and leakage current measurement at two ends of the long-distance cable is realized. The device can collect various types of system leakage currents, realize the accurate measurement and calculation of the leakage currents in various places, and greatly improve the accuracy and efficiency of the system leakage current test.

Description

Portable leakage current detection device with wireless communication function

Technical Field

The utility model relates to a wireless communication field, concretely relates to portable leakage current detection device with wireless communication function.

Background

Current type is the main current type of current leakage protectors used at home and abroad at present. Under normal conditions, the vector sum of the current of the load flowing through the leakage protection coil is zero, and the leakage protection does not act. When the equipment generates electric leakage or a human body is in electric shock, fault current returns to a power supply through the ground, does not flow through the leakage protection coil, and the vector sum is not equal to 0. When the current reaches a setting value, the leakage protection circuit is started to cut off a fault circuit, so that the protection effect is achieved.

Based on the principle, when the current leakage current of a system main circuit or a feeder line branch circuit for a detection station is detected, the unbalanced current of the load is measured by using a conventional clamp meter. However, at the present stage, the wiring of the station system is very dense, the measurement space is very narrow, part of cables are very far away, the leakage current of the whole loop is difficult to measure by using a common clamp meter, the leakage current needs to be manually calculated after being measured respectively, and the measurement error is very large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the problem of the current leakage current of system's main road or feeder branch road is used to the station under the unable measurement complex environment of current staff, the utility model provides a solve the portable leakage current detection device who has the wireless communication function of above-mentioned problem.

The utility model discloses a following technical scheme realizes:

the utility model provides a portable leakage current detection device with wireless communication function, includes the leakage current detection device body just the tip of leakage current detection device body has 2 leakage current induction pincers and 2 adjustable leakage current induction coil, the leakage current detection device body is provided with the controller, the leakage current detection device body is furnished with wireless communication module, there is LCD on upper portion in the leakage current detection device body, there are 3 mode selection buttons on the left downside of leakage current detection device body, there are LED pilot lamp and alarm in the middle part of the leakage current detection device body, there is operation/stop button on the right downside of leakage current detection device body, there is this device LOGO on leakage current detection device body upper portion.

As a preferred scheme of the utility model, just including the leakage current detection device body the tip of leakage current detection device body has 2 leakage current induction pincers and 2 adjustable leakage current induction coil.

As an optimized proposal of the utility model, the opening size of the leakage current induction clamp is 35mm and 55mm respectively.

As an optimal solution of the present invention, the leakage current induction coil can be replaced with coils of different diameters.

As an optimized scheme of the utility model, the controller is used for carrying out leakage current collection demonstration and the vector calculation of 4 way at most, when because of the unable direct collection leakage current of environmental factor, can gather respectively through leakage current induction clamp and leakage current induction coil to utilize the total leakage current summation calculation of vector calculation function realization this branch road. The controller is used for performing a high-precision time keeping function within 30 minutes.

As an optimized scheme of the utility model, wireless communication module includes bluetooth transceiver, can realize communicating between 3 at most equipment in 200 meters under the open environment.

As an optimized scheme of the utility model, but LCD current measurement value, calculating value and current function are realized.

As a preferred scheme of the utility model, the mode selection button has 3, through the button adjustment leakage current detection device function: single-device single-channel acquisition, single-device multi-channel calculation and multi-device multi-channel calculation.

As an optimized scheme of the utility model, LED pilot lamp and alarm can show the collection mouth of current use to send the warning sound when single channel collection value or multichannel, multi-device calculated value are greater than 300 mA.

As a preferred embodiment of the present invention, the operation/stop button is provided at the lower right side of the device, and the switching operation/stop of the device can be realized.

As an optimized scheme of the utility model, leakage current induction pincers, leakage current induction coil electric connection the controller, controller electric connection wireless communication module LCD the mode selection button LED pilot lamp and alarm move/stop button.

The utility model discloses have following advantage and beneficial effect:

the utility model provides a portable leakage current detection device with wireless communication function is used for carrying out the leakage current collection function under the complex environment, realizes the accurate measurement and the calculation of each place leakage current, has improved the degree of accuracy and the efficiency of system leakage current test greatly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Reference numbers and corresponding part names in the drawings:

1. a leakage current detection device body; 2. leakage current sensing clamps; 3. a leakage current induction coil; 4. a controller; 5. a wireless communication module; 6. a liquid crystal display; 7. a mode selection key; 8. LED indicator lights and alarms; 9. a run/stop button; 10. device LOGO.

Detailed Description

Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any inventive improvement belong to the protection scope of the present invention.

As shown in fig. 1, the portable leakage current detection device with wireless communication function provided by the present invention comprises a leakage current detection device body 1, wherein the end of the leakage current detection device body is provided with 2 leakage

current induction clamps

2 and 2 adjustable leakage current induction coils 3, a controller 4 is arranged in the leakage current detection device body, and one side of the controller 4 is provided with a wireless communication module 5; there is LCD 6 in the upper portion in the leakage current detection device body, and there is mode selection button 7 leakage current detection device body left side downside, and there are LED pilot lamp and warning 8 in the middle part, and there is operation/stop button 9 right side downside, and there is this device LOGO10 on the upper portion.

The leakage current induction coil 3 can be replaced by coils with different diameters, and measurement in a complex environment is convenient.

The wireless communication module 5 comprises a Bluetooth transceiver, and can realize communication among 3 devices within 200 meters in an open environment.

The leakage current detection device body is provided with a liquid crystal display 6, the left lower side of the leakage current detection device body is provided with a mode selection key, the right side of the leakage current detection device body is provided with an LED indicator lamp and an alarm, the right lower side of the leakage current detection device body is provided with an operation/stop button, data can be monitored through a display screen, the mode selection key is used for selecting a function, and the device is started/stopped through the operation/stop button.

Selecting a mode through a mode selection key 7, collecting leakage current through a leakage current induction clamp 2 and a leakage current induction coil 3 in a single-channel collection mode, displaying the leakage current on a liquid crystal display screen 6, and alarming when a sampling value is larger than 300 mA; in a multi-channel calculation mode, vector calculation is carried out through the controller 4, the vector sum of all the acquisition channels is automatically calculated and displayed on the liquid crystal display screen 6, and an alarm is given when the calculated value is larger than 300 mA; in the multi-device calculation mode, at most 3 devices are paired, after the pairing is successful, sampling values of all channels of each device are automatically calculated and then transmitted to the successfully paired devices, the calculation of leakage current values among the devices is realized, the final leakage current value is displayed on the liquid crystal display screen 6, and an alarm is given when the final leakage current value is larger than 300 mA.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A portable leakage current detection device with wireless communication function is characterized in that the device comprises a leakage current detection device body (1), 2 leakage current induction pincers (2) and 2 adjustable leakage current induction coils (3) are arranged at the end part of the leakage current detection device body (1), the leakage current detection device body (1) is provided with a controller (4), the leakage current detection device body (1) is provided with a wireless communication module (5), the middle upper part of the leakage current detection device body (1) is provided with a liquid crystal display (6), a mode selection key (7) is arranged at the left lower side of the leakage current detection device body (1), an LED indicator light and an alarm (8) are arranged in the middle of the leakage current detection device body (1), and an operation/stop button (9) is arranged at the lower right side of the leakage current detection device body (1).

2. The portable leakage current detection device with wireless communication function according to claim 1, wherein the opening size of the leakage current sensing clamp (2) is 35mm and 55mm respectively.

3. The portable leakage current detection device with wireless communication function according to claim 1, wherein said leakage current induction coil (3) can be replaced with a coil of different diameter.

4. The portable leakage current detection device with wireless communication function according to claim 1, wherein the controller (4) is configured to perform leakage current collection display and vector calculation for at most 4 paths, when leakage current cannot be directly collected due to environmental factors, the leakage current can be collected by the leakage current sensing clamp and the leakage current sensing coil respectively, and the total leakage current summation calculation of the branches is implemented by using the vector calculation function, and the controller (4) is configured to perform a high-precision timekeeping function within 30 minutes.

5. The portable leakage current detection device with wireless communication function as claimed in claim 1, wherein the wireless communication module (5) comprises a bluetooth transceiver, which can realize communication between 3 devices within 200 meters in an open environment.

6. The portable leakage current detection device with wireless communication function as claimed in claim 1, wherein the liquid crystal display (6) can display the current measurement value, calculation value and current function.

7. The portable leakage current detection device with wireless communication function as claimed in claim 1, wherein there are 3 mode selection buttons (7), and the leakage current detection device function is adjusted by the buttons: single-device single-channel acquisition, single-device multi-channel calculation and multi-device multi-channel calculation.

8. The portable leakage current detection device with wireless communication function according to claim 1, wherein the LED indicator and alarm (8) can display the currently used acquisition port and send out an alarm sound when the single-channel acquisition value or the multi-channel, multi-device calculation value is greater than 300 mA.

9. The portable leakage current detection device with wireless communication function as claimed in claim 1, wherein said operation/stop button (9) is at the lower right side of the device for switching between operation and stop of the device.

10. The portable leakage current detection device with wireless communication function according to claim 1, wherein the leakage current sensing clamp (2) and the leakage current sensing coil (3) are electrically connected to the controller (4), and the controller (4) is electrically connected to the wireless communication module (5), the liquid crystal display (6), the mode selection button (7), the LED indicator and alarm (8), and the operation/stop button (9).