Non-contact wireless current and voltage measuring system

Abstract

The invention relates to a non-contact wireless current and voltage measuring system which comprises a measuring device and a connecting device electrically connected with the measuring device, and the measuring device is provided with a current sensing body and a voltage sensing body. According to the scheme, the current and the voltage of the insulated conductor can be safely measured by the current sensing body and the voltage sensing body under the condition that the insulating layer of the insulated conductor does not need to be stripped.

Description

Technical Field

[0001] The present invention belongs to the field of measuring current and voltage of large insulated conductors, and in particular relates to a non-contact wireless current and voltage measurement system. Background Art

[0002] According to the voltmeter or multimeter used to measure the AC voltage and / or current of an insulated conductor, it is usually necessary to remove a portion of the insulation of the insulated conductor, or to disconnect the circuit, or to contact the measuring electrode with the conductor to make current contact with the wire or terminal. However, it is not safe to contact the probe with the stripped wire or terminal. In addition, for measuring the current of large insulated conductors, a Rogowski current hook meter is usually used. The structure generally includes: a clamp at one end to fix the clamp and the other end is concavely bent into a loop and forms a structure that can be connected or detached. The clamp is connected to a transmission line, and the other end of the transmission line is connected to an electronic hook meter with a screen display. In use, the clamp is wrapped around the large insulated conductor to be measured, and the current principle is used for measurement. The data is then transmitted to the electronic hook meter via the transmission line and displayed on the screen for the staff to view.

[0003] However, this measurement method is not practical with current technology, as existing Rogowski current hook meters can only measure current and not voltage. Therefore, workers need to carry two or more different devices, which is inconvenient to carry.

[0004] Therefore, it is urgent to design a non-contact wireless current and voltage measurement system to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a non-contact wireless current and voltage measurement system, which has the advantage of not requiring physical or electrical contact with an insulated conductor, thereby solving the problem of unsafety when measuring current and voltage of an insulated conductor.

[0006] To achieve the above objectives, the specific technical solutions of the non-contact wireless current and voltage measurement system of the present invention are as follows: A contactless wireless current and voltage measurement system includes: a measuring device having a current sensing body and a voltage sensing body, the voltage sensing body being a laminated sheet; a connecting device having a first electrical hole, a second electrical hole, and a third electrical hole opposite the first and second electrical holes; wherein the voltage sensing body is electrically connected to a sensing transmission line, which is electrically connected to the second electrical hole; one end of the current sensing body is electrically connected to the first electrical hole, and the other end is movably inserted into and electrically connected to the second electrical hole; the current sensing body and the voltage sensing body are independent and electrically disconnected, and the current sensing body has a surrounding current sensing portion; and a wire having one end electrically connected to the third electrical hole and the other end electrically connected to a signal processing device.

[0007] The device further comprises a wire, one end of which is movably and electrically connected to the third electrical hole, and the other end of which is electrically connected to the signal processing device.

[0008] The current sensing body is in a line shape and surrounds to form a current sensing portion.

[0009] The first electrical hole and the second electrical hole of the connecting device are located at the same end of the connecting device.

[0010] The voltage sensing body is a structure that is bonded to a sheet.

[0011] The signal processing device is wirelessly connected to the multimedia device.

[0012] The measuring device is used to measure the insulated conductor and transmit the measured value to the signal processing device. After the signal processing device processes the measured value, it is wirelessly transmitted to the multimedia device. The multimedia device displays voltage data and current data. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A perspective view of a first embodiment of the present invention; Figure 2 This is a schematic diagram of measuring an insulated conductor according to the first embodiment of the present invention; Figure 3 is a perspective view of a second embodiment of the present invention; Figure 4 This is a schematic diagram showing the use of a second embodiment of the present invention for measuring an insulated conductor; Figure 5 is a circuit block diagram of the present invention; Description of the marks in the figure: Measuring device 1; Current sensing body 10; Current sensing unit 101; Voltage sensing body 11; Connecting device 2; First electrical hole 20; Second electrical hole 21; The third electrical hole 22; Wire 3; a signal processing device 4; Multimedia device 5; Insulated conductor 6; Insulation layer 60; DETAILED DESCRIPTION

[0014] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0015] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0016] Please refer to the attached Figure 1 To the attached Figure 5 The present invention describes a non-contact wireless current and voltage measurement system.

[0017] in Figure 1 、 Figure 2 and Figure 5 The non-contact wireless current and voltage measurement system of the first embodiment of the present invention comprises: The measuring device 1 comprises a current sensing body 10 and a voltage sensing body 11. The current sensing body 10 has a surrounding current sensing portion 101. The current sensing body 10 and the voltage sensing body 11 are electrically connected and integrally formed. In this embodiment, the current sensing body 10 has the surrounding current sensing portion 101, while the voltage sensing body 11 is a laminated structure.

[0018] The connecting device 2 is generally Y-shaped and has a first electrical hole 20, a second electrical hole 21 and a third electrical hole 22. The first electrical hole 20 and the second electrical hole 21 are located at the same end of the connecting device 2, and the first electrical hole 20 and the second electrical hole 21 are respectively electrically connected to the two ends of the current sensing part 101 of the current sensing body 10.

[0019] One end of the wire 3 is electrically connected to the third electrical hole 22, and the other end is electrically connected to the signal processing device 4. The signal processing device 4 is wirelessly connected to the multimedia device 5. In this embodiment, the multimedia device 5 can be an electronic watch, a smart phone, a tablet, or a laptop.

[0020] In use, the user holds the connecting device 2 and places the current sensing portion 101 of the current sensing body 10 on the large-sized insulating conductor 6, so that the current sensing portion 101 is tightly wrapped around the outer wall of the insulating conductor 6, and the voltage sensing body 11 is attached to the outer wall of the insulating conductor 6. The current sensing body 10 and the voltage sensing body 11 are used to simultaneously measure the current value and voltage value of the insulating conductor 6. Furthermore, the current sensing body 10 and the voltage sensing body 11 of the present invention utilize the principle that the current flowing in the insulating conductor 6 generates a magnetic field. After measuring the current value through the magnetic field, the change in the electric field is sensed and converted into a voltage value according to the electric field coupling method. Accordingly, through the measurement method of the first embodiment of the present invention, it is possible to safely measure the current and voltage of the insulating conductor 6 without stripping the insulating layer 60 of the insulating conductor 6.

[0021] In addition, it is worth mentioning that the measuring device 1 can transmit the measured current and voltage values ​​to the signal processing device 4 through the wire 3. The signal processing device 4 then transmits the current and voltage values ​​to the multimedia device 5 by wireless transmission, so that the user can grasp the measurement status at any time through the multimedia device 5.

[0022] See also Figures 3 to 5 FIG. 2 shows a non-contact wireless current and voltage measurement system according to a second embodiment of the present invention, comprising: The measuring device 1 comprises a current sensing body 10 and a voltage sensing body 11. The current sensing body 10 has a circular current sensing portion 101, while the voltage sensing body 11 has an electrically connected sensing transmission line 111. When voltage exists in a cable or conductor, an electric field is generated in the surrounding area. The voltage sensing body 11 has one or more electrodes. When the voltage sensing body 11 is close to the conductor, changes in the electric field are sensed and converted into a voltage signal. The principle of voltage detection is based on the electric field coupling method, which is based on the physical properties of the electric field. In this embodiment, the voltage sensing body 11 is a laminated structure, and the voltage sensing body 11 and the current sensing body 10 are independent and electrically disconnected.

[0023] The connecting device 2 is generally Y-shaped and has a first electrical hole 20, a second electrical hole 21, and a third electrical hole 22. The first electrical hole 20 and the second electrical hole 21 are located at the same end of the connecting device 2, wherein the sensing transmission line 111 of the voltage sensing body 11 is electrically connected to the second electrical hole 21, and the current sensing part 101 of the current sensing body 10 has one end electrically connected to the first electrical hole 20 and the other end movably plugged into the second electrical hole 21 and electrically connected.

[0024] One end of the wire 3 is electrically connected to the third electrical hole 22, and the other end is electrically connected to the signal processing device 4. The signal processing device 4 is wirelessly connected to the multimedia device 5. In this embodiment, the multimedia device 5 can be an electronic watch, a smart phone, a tablet, or a laptop.

[0025] In use, the user holds the connection device 2 and places the current sensing portion 101 of the current sensing body 10 over the large-sized insulated conductor 6. Then, one end of the current sensing portion 101 of the current sensing body 10 is inserted into the second electrical hole 21 and electrically connected, so that the current sensing portion 101 tightly wraps around the outer wall of the insulated conductor 6, allowing the current sensing body 10 to measure the current value of the insulated conductor 6. The voltage sensing body 11 is attached to the outer wall of the insulated conductor 6 and maintained at a distance from the current sensing body 10, preventing the voltage sensing body 11 from being electrically connected to the current sensing body 10. The current and voltage values ​​of the insulated conductor 6 are simultaneously measured by the current sensing body 10 and the voltage sensing body 11. Similar to the first embodiment, this embodiment utilizes the principle that the current flowing in the insulated conductor 6 generates a magnetic field. After measuring the current value through the magnetic field, the change in the electric field is sensed and converted into a voltage value according to the electric field coupling method. Thus, the measurement method of this embodiment allows for safe measurement of the current and voltage of the insulated conductor 6 without stripping the insulation layer 60 of the insulated conductor 6. Furthermore, in this embodiment, the measuring device 1 can transmit the measured current and voltage values ​​via the wire 3 to the signal processing device 4. The signal processing device 4 then wirelessly transmits the current and voltage values ​​to the multimedia device 5, allowing the user to monitor the measurement status of the insulated conductor 6 at any time via the multimedia device 5.

[0026] In summary, the contactless wireless current and voltage measurement system of the present invention, through a wireless connection between a signal processing device 4 and a multimedia device 5, allows professionals to perform circuit inspections without having to spend extended periods inside large equipment, thereby preventing them from snags on wiring, collisions with electronic components, and preventing spatial constraints that could affect data viewing. Furthermore, the current sensing body 10 and the voltage sensing body 11 of the measuring device 1 can simultaneously measure current and voltage, improving upon the conventional Rogowski current hook meter, which only measures current and requires professionals to carry a separate voltage measuring device.

[0027] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A non-contact wireless current and voltage measurement system, characterized in that: include: The measuring device comprises a current sensing body and a voltage sensing body, wherein the voltage sensing body is a laminated body; A connecting device having a first electrical hole, a second electrical hole, and a third electrical hole opposite to the first electrical hole and the second electrical hole; The current sensing body and the voltage sensing body are electrically connected to form a whole, and two ends of the current sensing body are electrically connected to the first electrical hole and the second electrical hole, and the current value and the voltage value of the insulated conductor are measured by the current sensing body and the voltage sensing body; One end of the wire is electrically connected to the third electrical hole, and the other end is electrically connected to the signal processing device.

2. The non-contact wireless current and voltage measurement system according to claim 1, wherein: The current sensing body has a surrounding current sensing portion.

3. The non-contact wireless current and voltage measurement system according to claim 1, wherein: The connecting device is Y-shaped, and the first electrical hole and the second electrical hole are located at the same end of the connecting device.

4. The non-contact wireless current and voltage measurement system according to claim 1, wherein: The signal processing device is a wirelessly connected multimedia device.

5. The non-contact wireless current and voltage measurement system according to claim 4, wherein: The measuring device transmits the current value and voltage value obtained after measuring the insulated conductor to the signal processing device. After the signal processing device processes the current value and the voltage value, the signal processing device transmits the data to the multimedia device in a wireless manner. The multimedia device displays the data of the current value and the voltage value.

6. Non-contact wireless current and voltage measurement system, comprising: The measuring device comprises a current sensing body and a voltage sensing body, wherein the voltage sensing body is a laminated body; A connecting device having a first electrical hole, a second electrical hole, and a third electrical hole opposite to the first electrical hole and the second electrical hole; The voltage sensing body is electrically connected to a sensing transmission line, which is electrically connected to the second electrical hole. One end of the current sensing body is electrically connected to the first electrical hole, and the other end is movably plugged into and electrically connected to the second electrical hole. The current sensing body and the voltage sensing body are independent and electrically disconnected, and the current sensing body has a surrounding current sensing portion. One end of the wire is electrically connected to the third electrical hole, and the other end is electrically connected to the signal processing device.

7. The non-contact wireless current and voltage measurement system according to claim 6, wherein: The current sensing body has a surrounding current sensing portion.

8. The non-contact wireless current and voltage measurement system according to claim 6, wherein: The connecting device is Y-shaped, and the first electrical hole and the second electrical hole are located at the same end of the connecting device.

9. The non-contact wireless current and voltage measurement system according to claim 6, wherein: The signal processing device is wirelessly connected to the multimedia device.

10. The non-contact wireless current and voltage measurement system according to claim 9, wherein: The measuring device transmits the current value and voltage value obtained after measuring the insulated conductor to the signal processing device. After the signal processing device processes the current value and the voltage value, the signal processing device transmits the data to the multimedia device in a wireless manner. The multimedia device displays the data of the current value and the voltage value.

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