Fluxgate high-precision voltage sensor

Abstract

The fluxgate high-precision voltage sensor comprises a sensor body, a hoop frame, a magnetic flux detection port and a diversion cable, a warning lamp is arranged at the upper position of the side face of the sensor body, connector lugs are arranged on the two sides of the top of the sensor body, the magnetic flux detection port is formed in the middle of the sensor body, and the diversion cable is arranged on the hoop frame. Hoop frames are arranged on the front side and the rear side of the magnetic flux detection opening. The sensor main body is simple and small in structural design and convenient to carry and use, and the connector lug is arranged at the top of the sensor main body, so that a circuit needing to be detected can be directly connected, visual judgment can be carried out according to voltage change on a display screen, and the detection accuracy is improved. One side and the front surface of the sensor main body are respectively provided with a warning lamp and a voice warning port, so that the sensor can perform safety warning, and the functionality is increased; the fluctuation of voltage and current can be judged according to the change of a magnetic field through the magnetic flux detection port, so that the detection is more comprehensive, and the universality of the sensor main body is improved.

Description

Technical Field

[0001] The utility model relates to the relevant field of voltage sensors, in particular to a fluxgate high-precision voltage sensor. Background Art

[0002] A voltage sensor is a device that converts the measured electrical quantity into DC current or DC voltage and outputs an isolated analog or digital signal. Voltage and current sensors are used to measure voltage or current signals with severe waveform distortion in power grids. They can also measure non-sinusoidal waveforms such as square and triangular waves.

[0003] For example, the authorized patent with publication number CN213275732U (Fluxgate Voltage Sensor): The fluxgate voltage sensor includes an outer shell, and the fluxgate voltage sensor also includes a width coil, a primary coil, a detection frame, a magnetic core B, a detection coil, a width frame, a primary frame, a PCB circuit board, a pin and a magnetic core A. The width coil and the primary coil are fixedly connected to each other, and a magnetic core through-hole is provided inside the width frame and the primary frame. The primary coil is wound around the outside of the primary frame, the width coil is wound around the width frame, and the detection coil is wound around the outside of the detection frame. The principle of this utility model is the fluxgate principle, which is different from the traditional voltage measurement principle. Within the operating temperature range of the product, the full-scale temperature drift is within the range of 400ppm. The fluxgate voltage sensor product is a brand-new principle application in the field of high-voltage measurement, and the operating frequency is 300kHZ. It solves the problems of high-voltage series current from the high-voltage end to the low-voltage end and electromagnetic interference at the high-voltage input end.

[0004] The above-mentioned existing technology has a single detection method and cannot perform voltage detection according to different input methods. The sensor detection is not comprehensive enough, and the diversion cable in the detection process cannot be suspended and installed. Direct placement requires the use of other fixing equipment, which is not convenient to use. It is placed directly in the detection port, which affects the effect of the diversion detection. No warning can be issued after the detection, and the safety is not enough. Utility Model Content

[0005] The purpose of the present utility model is to provide a fluxgate high-precision voltage sensor to solve the problems proposed in the above-mentioned background technology, such as a single detection method, inability to perform voltage detection according to different input methods, insufficient sensor detection, and inability to hang and install the guide cable during the detection process. Direct placement requires the use of other fixing equipment, which is not convenient to use. Direct placement in the detection port affects the effect of the guide detection, and no warning can be issued after the detection, resulting in insufficient safety.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flux gate high-precision voltage sensor, comprising a sensor body, a hoop, a flux detection port and a guide cable, a warning light is provided at the upper side of the sensor body, wiring heads are provided on both sides of the top of the sensor body, a flux detection port is provided in the middle of the sensor body, and hoop frames are provided on the front and rear sides of the flux detection port.

[0007] In a further embodiment, a display screen and a voice warning port are provided on the front of the sensor body, and the voice warning port is located diagonally below the display screen.

[0008] In a further embodiment, the sides of the sensor body are covered with protective strips, and the bottom of the sensor body is provided with a casual wearing bayonet.

[0009] In a further embodiment, a dual detection circuit is provided inside the sensor body, and the dual detection circuit is connected through a wiring connector and a magnetic flux detection port respectively.

[0010] In a further embodiment, an annular magnetic core is provided inside the magnetic flux detection port, a Hall element is provided at a gap of the annular magnetic core, and the Hall element is connected to a circuit for outputting voltage.

[0011] In a further embodiment, a hanger is provided on the top of the hoop frame, and a mounting ear is provided on the top of the hanger frame. The mounting ear is connected to the sensor body through a connector, and the guide cable passes through the magnetic flux detection port and is fixed by the hoop frame.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The sensor body structure design of this utility model is relatively simple and compact, which is convenient to carry and use. A wiring head is provided on the top of the sensor body, so that the circuit to be detected can be directly connected. The voltage change on the display screen can be intuitively judged. A warning light and a voice warning port are respectively provided on one side and the front of the sensor body, so that it can provide safety warnings and increase functionality.

[0014] 2. The utility model has a magnetic flux detection port in the middle, through which the fluctuations of voltage and current can be judged according to the changes in the magnetic field, making the detection more comprehensive and increasing the versatility of the sensor body. Hoops are provided on the front and back of the sensor body, through which the cables to be detected can be hung and fixed through the magnetic flux detection port. This integral design facilitates the installation of cables and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a fluxgate high-precision voltage sensor of the present utility model;

[0016] Figure 2 It is a side view of the utility model;

[0017] Figure 3 This is the front view of the hoop frame of the utility model;

[0018] Figure 4 This is a top view of the sensor body of the present invention.

[0019] In the figure: 1. Display screen; 2. Warning light; 3. Sensor body; 4. Voice warning port; 5. Wiring head; 6. Hoop; 7. Magnetic flux detection port; 8. Guide cable; 9. Connector; 10. Hanging rod; 11. Elastic ear; 12. Mounting ear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment: a fluxgate high-precision voltage sensor, including a sensor body 3, a hoop 6, a flux detection port 7 and a guide cable 8. A warning light 2 is provided at the upper position of the side of the sensor body 3, and wiring heads 5 are provided on both sides of the top of the sensor body 3. A flux detection port 7 is provided in the middle of the sensor body 3, and a hoop 6 is provided on the front and back sides of the flux detection port 7; the warning light 2 can be used to warn of abnormal voltage fluctuations, the wiring head 5 is used to connect to the circuit to be tested, the flux detection port 7 is used to pass through the guide cable 8 and detect the fluctuation of the current in the guide cable 8, and the hoop 6 is used to elevate and fix the guide cable 8.

[0022] A display screen 1 and a voice warning port 4 are provided on the front of the sensor body 3, and the voice warning port 4 is located diagonally below the display screen 1. The detection data is displayed through the display screen 1, and the voice warning port 4 is used to issue a voice warning of danger.

[0023] The sides of the sensor body 3 are covered with a protective strip, and a casual fitting slot is provided at the bottom of the sensor body 3. The protective strip can be used to safely protect the sides of the sensor body 3, and the casual fitting slot is used to facilitate the installation and fixation of the sensor body 3; a dual detection circuit is provided inside the sensor body 3, and the dual detection circuit is respectively connected through the terminal head 5 and the magnetic flux detection port 7. The dual detection circuit can perform voltage detection in two ways at the same time, which can improve the detection accuracy; a ring-shaped magnetic core is provided inside the magnetic flux detection port 7, and a Hall element is provided at the notch of the ring-shaped magnetic core, and the Hall element is connected to the output voltage circuit, and test voltage detection is performed in this way.

[0024] A hanger 10 is provided at the top of the hoop frame 6, and a mounting ear 12 is provided at the top of the hanger 10. The mounting ear 12 is connected to the sensor body 3 through a connector 9. The guide cable 8 passes through the magnetic flux detection port 7 and is raised and fixed by the hoop frame 6. The hoop frame 6 is hoisted and fixed by the hanger 10, and the installation of the mounting ear 12 is facilitated by the connector 9.

[0025] Working principle: When in use, the circuit to be tested is connected through the terminal 5, the fluctuation of current and voltage is judged by the circuit in the sensor body 3, and the feedback is displayed on the display screen 1. The abnormal fluctuation of equipment voltage is warned by the warning light 2 and the voice warning port 4. The installation of the suspension rod 10 is facilitated by the connection head 9, and the hoop frame 6 is hoisted by the suspension rod 10. The guide cable 8 is inserted into the magnetic flux detection port 7 and is suspended and fixed by the two hoops 6. The current in the guide cable 8 is detected through the magnetic flux detection port 7, and the detected data is displayed on the display screen 1.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A fluxgate high-precision voltage sensor, comprising a sensor body (3), a hoop (6), a flux detection port (7) and a guide cable (8), characterized in that: A warning light (2) is provided at an upper position on the side of the sensor body (3), wiring connectors (5) are provided on both sides of the top of the sensor body (3), a magnetic flux detection port (7) is provided in the middle of the sensor body (3), and hoop frames (6) are provided on the front and rear sides of the magnetic flux detection port (7).

2. The fluxgate high-precision voltage sensor according to claim 1, characterized in that: A display screen (1) and a voice warning port (4) are provided on the front of the sensor body (3), and the voice warning port (4) is located obliquely below the display screen (1).

3. The fluxgate high-precision voltage sensor according to claim 1, characterized in that: The sides of the sensor body (3) are covered with protective strips, and the bottom of the sensor body (3) is provided with a casual fitting bayonet.

4. The fluxgate high-precision voltage sensor according to claim 1, characterized in that: The sensor body (3) is provided with a dual detection circuit inside, and the dual detection circuits are connected through the wiring head (5) and the magnetic flux detection port (7) respectively.

5. The fluxgate high-precision voltage sensor according to claim 1, characterized in that: An annular magnetic core is provided inside the magnetic flux detection port (7), a Hall element is provided at a gap of the annular magnetic core, and the Hall element is connected to a circuit for outputting voltage.

6. The fluxgate high-precision voltage sensor according to claim 1, characterized in that: A suspension rod (10) is provided on the top of the hoop (6), and a mounting ear (12) is provided on the top of the suspension rod (10). The mounting ear (12) is connected to the sensor body (3) via a connector (9). The guide cable (8) passes through the magnetic flux detection port (7) and is elevated and fixed by the hoop (6).

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