Electrical performance detection device for high-frequency transformer

Abstract

The utility model provides an electrical performance detection device for a high-frequency transformer, which comprises an infrared temperature measuring head and a handle, the bottom of the infrared temperature measuring head is fixedly connected with the handle, a switch is arranged on the front surface of the handle, a digital display screen is arranged on the back surface of the infrared temperature measuring head, and the back surface of the handle is a flat and straight surface. The utility model has the advantages that the infrared thermometer and the detection meter are assembled for use, the characteristics of the two instruments are fully utilized, more comprehensive, accurate and efficient frequency converter detection is realized, item detection is more convenient to switch, a single machine can realize detection of various items such as temperature, current and voltage, a plurality of detection devices do not need to be switched, and the detection efficiency is improved. The combination mode also improves the detection efficiency. As the two instruments can be used at the same time, an operator does not need to frequently replace tools or adjust parameters, so that the time is saved. Meanwhile, detection errors caused by misoperation or instrument errors can be reduced through combined use, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage frequency converter detection, in particular to an electrical performance detection device for a high-frequency transformer. Background Art

[0002] The items of electrical performance testing of high-voltage inverters include but are not limited to: current testing, voltage testing, and temperature testing of various components and connection points.

[0003] Its significance is that after the implementation of various tests, it can ensure that the basic performance of the equipment is good and can operate normally and stably. It can also ensure that the equipment can respond in time under abnormal circumstances, reduce losses, and prevent equipment damage.

[0004] In the prior art, conventional electrical performance testing devices include multimeters, infrared thermometers, etc., which need to be debugged before testing high-frequency transformers. Switching device testing consumes a lot of time, and a single device can only test a single electrical performance item, resulting in low testing efficiency. Therefore, a new electrical performance testing device for high-frequency transformers is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the utility model is to provide an electrical performance detection device for a high-frequency transformer to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides an electrical performance detection device for a high-frequency transformer, comprising an infrared temperature measuring head and a handle, wherein the bottom of the infrared temperature measuring head is fixedly connected to the handle, and a switch is installed on the front of the handle;

[0008] A digital display screen is installed on the back of the infrared temperature measuring head;

[0009] The back side of the handle is a flat surface, and a slot is fixedly connected to the back side of the handle;

[0010] Card slots are provided on both sides of the slot, a connector is plugged into the slot, and a test meter is fixedly connected to one side of the connector;

[0011] The test meter is provided with a black and white screen, a gear adjustment knob is movably connected to the test meter, and a plurality of jacks are provided on the test meter, and test leads are detachably connected to two of the jacks;

[0012] A spring is fixedly connected inside the joint, a clamping block is fixedly connected to the end of the spring, and the clamping block is clamped in the clamping slot.

[0013] Preferably, any of the above schemes has an angle of ninety degrees between the infrared temperature measuring head and the handle, and the infrared temperature measuring head and the handle form an infrared thermometer structure.

[0014] Adopting the above technical solution: This device is specially used for electrical performance detection of high-voltage inverters, specifically detecting the temperature of each electrical connection point of the high-voltage inverter to determine the reliability of the electrical connection, and detecting the voltage and current of the high-voltage inverter.

[0015] Preferably, any of the above schemes is that the slot is a structure with openings on the back and top surfaces, the card slot is connected to the slot, and the card slot is located at the bottom ends of both sides of the slot.

[0016] Adopt the above technical solution: when using an infrared thermometer to measure the temperature of each electrical connection point of the high-voltage inverter, adjust the infrared thermometer's emissivity, distance coefficient and other parameters according to the working environment of the high-voltage inverter, select a suitable temperature measurement range, ensure that the thermometer can accurately read the target temperature, safely approach the high-voltage inverter, ensure that a sufficient distance is maintained from the equipment during the temperature measurement process to avoid direct contact, use the thermometer to scan the key components of the high-voltage inverter, such as the radiator, power module, terminal block, etc., pay attention to the display screen of the thermometer, record the temperature value of each key component, and if an abnormal temperature is found, record and mark it in time for subsequent analysis. In this way, the electrical performance of the high-voltage inverter is tested.

[0017] Preferably, according to any of the above schemes, the cross-sectional shape of the connector is T-shaped, and the shape of the connector is matched with the shape of the inner side of the slot.

[0018] Adopt the above technical solution: When using the test meter to test the electrical performance of the high-voltage inverter, adjust the knob of the test meter to the voltage measurement gear, select the appropriate range, and find the corresponding voltage measurement points at the input and output ends of the high-voltage inverter. Touch the red and black test pens of the test meter to the corresponding measurement points respectively. Note that the red test pen is usually connected to the positive pole and the black test pen is connected to the negative pole. Read and record the voltage value displayed on the test meter. Repeat the above steps to detect the voltage values ​​at different positions of the high-voltage inverter to ensure that the voltage at all positions is within the normal range.

[0019] Turn the knob of the test meter to the current measurement position and select the appropriate range. Find the appropriate current measurement points at the input and output ends of the high-voltage inverter. Usually, these points are marked with current measurement symbols. Connect the test meter in series to the circuit, and make sure that the red and black test leads are connected to the positive and negative poles of the circuit respectively. Turn on the power switch of the high-voltage inverter to energize the circuit. Read and record the current value displayed on the test meter. This will test the electrical performance of the high-voltage inverter.

[0020] Preferably, any of the above schemes is that the detection table is located on the back of the infrared thermometer.

[0021] Preferably, in any of the above schemes, the vertical cross-section of the clamping block is trapezoidal, and the clamping block is movably connected to two sides of the joint.

[0022] Adopting the above technical solution: the core structure of this device is: handle, slot, card slot, connector, test table, spring, card block. The core advantages of this device are: improving the infrared thermometer, designing a new handle structure to fix the connection card slot, so that it can be docked and assembled with the connector and the test table. The connector can be locked in the card slot by the card block, and the connector can be removed by pressing the card block. The infrared thermometer and the test table are assembled and used, making full use of the characteristics of the two instruments to achieve more comprehensive, accurate and efficient inverter detection, more convenient to switch project detection, and a single machine can realize the detection of multiple projects such as temperature, current, and voltage without switching multiple detection devices;

[0023] This combination also improves detection efficiency. Since the two instruments can be used at the same time, operators do not need to frequently change tools or adjust parameters, thus saving time. At the same time, the combined use can also reduce detection errors caused by improper operation or instrument errors, and improve detection accuracy.

[0024] In terms of specific applications, this combined detection method can be widely used in various types of inverter detection scenarios. Whether it is preventive maintenance or troubleshooting, the combination of infrared thermometers and detection meters can be used to quickly locate problems and take corresponding measures. In addition, this combination method is also suitable for inverter detection tasks of different scales and complexities, and has a wide range of applicability.

[0025] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0026] 1. The electrical performance detection device for high-frequency transformer improves the infrared thermometer through the matching arrangement of a handle, a slot, a card slot, a connector, a detection table, a spring, and a card block. A new handle structure is designed to fix the connection card slot so that it can be docked and assembled with the connector and the detection table. The connector can be locked in the card slot by a card block. The connector can be removed by pressing the card block. The infrared thermometer and the detection table are assembled and used, making full use of the characteristics of the two instruments to achieve more comprehensive, accurate and efficient inverter detection, and more convenient to switch project detection. A single machine can realize the detection of multiple projects such as temperature, current, and voltage without switching multiple detection devices;

[0027] This combination also improves detection efficiency. Since the two instruments can be used at the same time, operators do not need to frequently change tools or adjust parameters, thus saving time. At the same time, the combined use can also reduce detection errors caused by improper operation or instrument errors, and improve detection accuracy.

[0028] 2. The electrical performance detection device for high-frequency transformers, in terms of specific applications, this combined detection method can be widely used in various types of inverter detection scenarios. Whether it is preventive maintenance or troubleshooting, the infrared thermometer and the detection meter can be used in combination to quickly locate the problem and take corresponding measures. In addition, this combination method is also suitable for inverter detection tasks of different scales and complexities, and has a wide range of applicability.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0032] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0033] Figure 3 This is a schematic diagram of the structure of the infrared temperature measuring head of the utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the handle of the utility model;

[0035] Figure 5 It is a partial cross-sectional structural schematic diagram of the clamping block of the utility model.

[0036] In the figure: 1-infrared temperature measuring head, 2-handle, 3-switch, 4-digital display screen, 5-slot, 6-card slot, 7-connector, 8-test meter, 9-black and white screen, 10-gear adjustment knob, 11-jack, 12-test lead, 13-spring, 14-card block. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1-5 As shown, the electrical performance detection device for high-frequency transformers includes an infrared temperature measuring head 1 and a handle 2. The bottom of the infrared temperature measuring head 1 is fixedly connected to the handle 2, and a switch 3 is installed on the front of the handle 2.

[0040] A digital display screen 4 is installed on the back of the infrared temperature measuring head 1;

[0041] The back of the handle 2 is a flat surface, and a slot 5 is fixedly connected to the back of the handle 2;

[0042] Card slots 6 are provided on both sides of the slot 5, a connector 7 is plugged into the slot 5, and a test meter 8 is fixedly connected to one side of the connector 7;

[0043] A black and white screen 9 is installed on the detection meter 8, a gear adjustment knob 10 is movably connected to the detection meter 8, and a plurality of jacks 11 are arranged on the detection meter 8, and test leads 12 are detachably connected to two of the jacks 11;

[0044] A spring 13 is fixedly connected inside the joint 7 , and a clamping block 14 is fixedly connected to the end of the spring 13 . The clamping block 14 is clamped in the clamping slot 6 .

[0045] Embodiment 1: The angle between the infrared temperature measuring head 1 and the handle 2 is ninety degrees, and the infrared temperature measuring head 1 and the handle 2 form an infrared thermometer structure. This device is specially used for electrical performance detection of high-voltage inverters, specifically detecting the temperature of each electrical connection point of the high-voltage inverter to determine the reliability of the electrical connection, and detecting the voltage and current of the high-voltage inverter. The slot 5 is an open structure on the back and top, and the card slot 6 is connected to the slot 5, and the card slot 6 is located at the bottom of both sides of the slot 5.

[0046] Example 2: When using an infrared thermometer to measure the temperature of each electrical connection point of a high-voltage frequency converter, adjust the infrared thermometer's emissivity, distance coefficient and other parameters according to the working environment of the high-voltage frequency converter, select a suitable temperature measurement range, ensure that the thermometer can accurately read the target temperature, safely approach the high-voltage frequency converter, ensure that a sufficient distance is maintained from the device during the temperature measurement process, avoid direct contact, use the thermometer to scan the key components of the high-voltage frequency converter, such as the radiator, power module, terminal block, etc., pay attention to the display screen of the thermometer, record the temperature value of each key component, and if an abnormal temperature is found, record and mark it in time for subsequent analysis. Thus, the electrical performance of the high-voltage frequency converter is tested.

[0047] Embodiment 3: The cross-sectional shape of the connector 7 is T-shaped, and the shape of the connector 7 matches the shape of the inner side of the slot 5. The test meter 8 is located at the back of the infrared thermometer. The vertical cross-sectional shape of the block 14 is trapezoidal, and the block 14 is movably connected to both sides of the connector 7.

[0048] The working principle of the utility model is as follows:

[0049] When using an infrared thermometer to measure the temperature of each electrical connection point of a high-voltage inverter, adjust the infrared thermometer's emissivity, distance coefficient and other parameters according to the working environment of the high-voltage inverter, select a suitable temperature measurement range, ensure that the thermometer can accurately read the target temperature, and safely approach the high-voltage inverter. Ensure that you maintain a sufficient distance from the equipment during the temperature measurement process to avoid direct contact. Use the thermometer to scan the key components of the high-voltage inverter, such as the heat sink, power module, and wiring terminals. Pay attention to the display screen of the thermometer and record the temperature value of each key component. If you find an abnormal temperature, record and mark it in time for subsequent analysis. In this way, the electrical performance of the high-voltage inverter can be tested;

[0050] When using the test meter 8 to test the electrical performance of the high-voltage inverter, adjust the knob of the test meter 8 to the voltage measurement gear, select the appropriate range, and find the corresponding voltage measurement points at the input and output ends of the high-voltage inverter. Touch the red and black test pens of the test meter 8 to the corresponding measurement points respectively. Note that the red test pen is usually connected to the positive pole and the black test pen is connected to the negative pole. Read and record the voltage value displayed on the test meter 8. Repeat the above steps to detect the voltage values ​​at different positions of the high-voltage inverter to ensure that the voltage at all positions is within the normal range.

[0051] Turn the knob of the test meter 8 to the current measurement position and select the appropriate range. Find the appropriate current measurement points at the input and output ends of the high-voltage inverter. Usually, these points are marked with current measurement marks. Connect the test meter 8 in series to the circuit, and make sure that the red and black test leads are connected to the positive and negative poles of the circuit respectively. Turn on the power switch of the high-voltage inverter to energize the circuit. Read and record the current value displayed on the test meter 8. This will test the electrical performance of the high-voltage inverter.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] 1. The electrical performance detection device for high-frequency transformer improves the infrared thermometer through the matching arrangement of the handle 2, the slot 5, the card slot 6, the connector 7, the detection meter 8, the spring 13, and the card block 14. A new handle structure 2 is designed to fix the card slot 6 so that it can be docked and assembled with the connector 7 and the detection meter 8. The connector 7 can be locked in the card slot 6 by the card block 14. The connector 7 can be disengaged by pressing the card block 14. The infrared thermometer and the detection meter 8 are assembled and used, making full use of the characteristics of the two instruments to achieve more comprehensive, accurate and efficient inverter detection, and more convenient to switch the project detection. A single machine can realize the detection of multiple projects such as temperature, current, and voltage without switching multiple detection devices;

[0054] This combination also improves detection efficiency. Since the two instruments can be used at the same time, operators do not need to frequently change tools or adjust parameters, thus saving time. At the same time, the combined use can also reduce detection errors caused by improper operation or instrument errors, and improve detection accuracy.

[0055] 2. The electrical performance detection device for high-frequency transformers, in terms of specific applications, this combined detection method can be widely used in various types of inverter detection scenarios. Whether it is preventive maintenance or troubleshooting, the infrared thermometer and the detection meter 8 can be used in combination to quickly locate the problem and take corresponding measures. In addition, this combination method is also suitable for inverter detection tasks of different scales and complexities, and has a wide range of applicability.

Claims

1. An electrical performance detection device for a high-frequency transformer, characterized in that: It comprises an infrared temperature measuring head (1) and a handle (2), wherein the bottom of the infrared temperature measuring head (1) is fixedly connected to the handle (2), and a switch (3) is installed on the front of the handle (2); A digital display screen (4) is installed on the back of the infrared temperature measuring head (1); The back side of the handle (2) is a flat surface, and a slot (5) is fixedly connected to the back side of the handle (2); card slots (6) are provided on both sides of the slot (5), a connector (7) is plugged into the slot (5), and a detection meter (8) is fixedly connected to one side of the connector (7); The detection meter (8) is provided with a black and white screen (9), the detection meter (8) is movably connected with a gear adjustment knob (10), the detection meter (8) is provided with a plurality of jacks (11), and two of the jacks (11) are detachably connected with test leads (12); A spring (13) is fixedly connected inside the joint (7), a clamping block (14) is fixedly connected to the end of the spring (13), and the clamping block (14) is clamped in the clamping groove (6).

2. The electrical performance detection device for a high-frequency transformer according to claim 1, characterized in that: The included angle between the infrared temperature measuring head (1) and the handle (2) is ninety degrees, and the infrared temperature measuring head (1) and the handle (2) form an infrared thermometer structure.

3. The electrical performance detection device for a high-frequency transformer according to claim 2, characterized in that: The slot (5) is a structure with openings on the back and top surfaces, the card slot (6) is connected to the slot (5), and the card slot (6) is located at the bottom ends of both sides of the slot (5).

4. The electrical performance detection device for a high-frequency transformer as claimed in claim 3, characterized in that: The cross-sectional shape of the connector (7) is T-shaped, and the shape of the connector (7) is compatible with the shape of the inner side of the slot (5).

5. The electrical performance detection device for a high-frequency transformer as claimed in claim 4, characterized in that: The detection meter (8) is located on the back of the infrared thermometer.

6. The electrical performance testing device for a high-frequency transformer according to claim 5, characterized in that: The vertical cross-section of the clamping block (14) is trapezoidal in shape, and the clamping block (14) is movably connected to two sides of the joint (7).

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