Touch type withstand voltage test auxiliary equipment

Abstract

The utility model relates to a touch type withstand voltage test auxiliary device, comprising a touch screen (1); a voltage regulator (2); the input end of the boosting transformer (3) is connected with the voltage regulator (2), and the output end of the boosting transformer (3) is connected with the withstand voltage test port (4); the measurement input end of the first transmitter (5) is connected with the boosting transformer (3) through a high-voltage mutual inductor (6), and the measurement output end of the first transmitter (5) is connected with the touch screen (1); a measurement input end of the second transmitter (7) is connected with the withstand voltage test port (4), and a measurement output end of the second transmitter (7) is connected with the touch screen (1). Compared with the prior art, the device has the advantages of assisting in voltage withstanding testing, being convenient to interact, safe to operate and the like.

Description

Technical Field

[0001] This utility model relates to the field of pressure resistance testing technology, and in particular to a touch-sensitive pressure resistance testing auxiliary device. Background Technology

[0002] Existing traditional withstand voltage testing equipment exhibits significant limitations in terms of ease of operation, testing accuracy, and safety protection mechanisms. Traditional solutions generally rely on manual voltage adjustment combined with mechanical instruments for displaying and monitoring voltage and current parameters. This operating mode is not only cumbersome but also prone to significant errors due to human factors, making it difficult to ensure the accuracy and consistency of test results. Furthermore, when the product under test experiences breakdown due to excessive voltage, the safety protection response mechanisms of existing equipment are often delayed, lacking rapid and effective protection measures, thus exposing both the testing equipment itself and the product under test to serious physical damage risks.

[0003] In summary, traditional withstand voltage testing equipment faces pressing technical bottlenecks in terms of automation, testing accuracy, and the effectiveness of safety protection measures, which limit its application potential in testing scenarios with high precision and high safety requirements. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the prior art by providing a touch-sensitive pressure resistance testing auxiliary device to assist in pressure resistance testing.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] This utility model provides a touch-sensitive pressure resistance testing auxiliary device, including:

[0007] touchscreen;

[0008] Voltage regulator;

[0009] A step-up transformer, with its input end connected to the voltage regulator and its output end connected to the withstand voltage test port;

[0010] The first transmitter has its measurement input terminal connected to the step-up transformer via a high-voltage current transformer, and its measurement output terminal connected to the touch screen.

[0011] The second transmitter has its measurement input terminal connected to the withstand pressure test port and its measurement output terminal connected to the touch screen.

[0012] As a preferred technical solution, the following are also included:

[0013] The controller is connected to the voltage regulator, and the touch screen is connected to the first transmitter and the second transmitter respectively through the controller.

[0014] As a preferred technical solution, the following are also included:

[0015] The power supply is connected to the voltage regulator.

[0016] As a preferred technical solution, the step-up transformer includes a primary side and a secondary side. The primary side is connected to the power supply through a voltage regulator, and the secondary side is connected to the high-voltage transformer and the withstand voltage test port, respectively.

[0017] As a preferred technical solution, the secondary side of the voltage regulator is connected to the primary side of the step-up transformer, and a current transformer is connected in series at the measurement input terminal of the second transmitter.

[0018] As a preferred technical solution, the following are also included:

[0019] The current protector is connected to the voltage regulator and the withstand voltage test port, respectively.

[0020] As a preferred technical solution, the following are also included:

[0021] The first relay, when activated, increases the voltage of the coil in the voltage regulator;

[0022] The second relay, when activated, reduces the voltage of the coil in the voltage regulator.

[0023] As a preferred technical solution, the following are also included:

[0024] The third relay is connected in series with the voltage regulator.

[0025] As a preferred technical solution, the following are also included:

[0026] A contactor, wherein the trigger coil of the contactor is connected to the input terminal of the voltage regulator, and one normally open contact of the contactor is connected in series with the voltage regulator;

[0027] The fourth relay is connected in series with the contactor.

[0028] As a preferred technical solution, the following are also included:

[0029] The high-voltage line is pluggable to the withstand voltage test port.

[0030] A clamp is connected to one end of the high-voltage line.

[0031] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0032] (1) Assisting in withstand voltage testing: This utility model uses a first transmitter to measure the applied voltage and a second transmitter to measure the current passing through the object under test, and finally displays the result on a touch screen to assist in withstand voltage testing.

[0033] (2) Convenient interaction: This utility model interacts with the operator by setting up a touch screen, making the information display more intuitive.

[0034] (3) Operational safety: This utility model ensures the safety of the test by setting a third and a fourth relay and controlling the on and off of the transmitter and voltage regulator. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the touch-sensitive withstand voltage test auxiliary device in the embodiment;

[0036] Figure 2 This is a wiring diagram of the transmitter in the embodiment;

[0037] Figure 3 This is a schematic diagram of the high-voltage circuit connection in the embodiment;

[0038] Figure 4 This is a schematic diagram of the low-voltage circuit connection in the embodiment.

[0039] The components include: 1. Touch screen; 2. Voltage regulator; 3. Step-up transformer; 4. Withstand voltage test port; 5. First transmitter; 6. High voltage transformer; 7. Second transmitter; 8. Controller; 10. Power supply; 11. Current transformer; and 12. Current protector. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0043] To address the problems existing in the prior art, this embodiment provides a touch-sensitive withstand voltage testing auxiliary device, see [link to relevant documentation]. Figure 1-4 It mainly includes a touch screen 1, a voltage regulator 2, a step-up transformer 3, a first transmitter 5, and a second transmitter 7. The input terminal of the step-up transformer 3 is connected to the voltage regulator 2, and its output terminal is connected to the withstand voltage test port 4. The measurement input terminal of the first transmitter is connected to the step-up transformer 3 via a high-voltage transformer 6, and its measurement output terminal is connected to the touch screen 1. The measurement input terminal of the second transmitter 7 is connected to the withstand voltage test port 4, and its measurement output terminal is connected to the touch screen 1.

[0044] In this embodiment, the voltage regulator 2 is an electrically adjustable voltage regulator with a coil.

[0045] Preferably, the device also includes a controller 8, the voltage regulator 2 is connected to the controller 8, and the touch screen 1 is connected to the first transmitter 5 and the second transmitter 7 respectively through the controller 8.

[0046] In this embodiment, the controller 8 can be a mature and widely used MCU control module, PLC industrial control module, etc., or other control modules that can realize control functions and are suitable for control in this embodiment. No restrictions are imposed here.

[0047] The software program built into the controller 8 is implemented using existing technology, and this utility model does not involve any methodological improvement.

[0048] In this embodiment, the voltage applied to the withstand voltage test port 4 is provided by the power supply 10, which is connected to the voltage regulator 2.

[0049] The step-up transformer 3 includes a primary side and a secondary side. The primary side is connected to the power supply 10 through the voltage regulator 2, and the secondary side is connected to the high-voltage transformer 6 and the withstand voltage test port 4, respectively.

[0050] The secondary side of the voltage regulator 2 is connected to the primary side of the step-up transformer 3, and the measurement input terminal of the second transmitter 7 is connected in series with the current transformer 11.

[0051] Preferably, considering that the withstand voltage test port may discharge to ground during the test, causing a potential leakage current hazard, this embodiment also includes a current protector 12, which is connected to the voltage regulator 2 and the withstand voltage test port 4 respectively. See Figure 3 and Figure 4 The current protector 12 is in a normally closed state, controlling the normally open contact of the fourth relay J3 connected in series with the contactor for protection. The fourth relay J3 is configured to disconnect when the current protector operates. In addition, a contactor KM1 is provided, the trigger coil of which is connected to the input terminal of the voltage regulator 2, and one normally open contact KM1-K2 of the contactor is connected in series with the voltage regulator 2.

[0052] Preferred, see Figure 3 Considering the inconvenience of switching under overvoltage or undervoltage testing conditions, the auxiliary equipment also includes:

[0053] When the first relay J0 is turned on, the voltage of the coil in the voltage regulator 2 is increased.

[0054] The second relay J1, when turned on, reduces the voltage of the coil in the voltage regulator 2.

[0055] Preferred, see Figure 3 The auxiliary equipment also includes:

[0056] The third relay J2 is connected in series with the voltage regulator 2. The third relay J3 is configured to disconnect when the measurement output of the second transmitter 7 (i.e., B1 in the figure) is too high.

[0057] Preferably, the auxiliary equipment also includes a high-voltage line that can be plugged into the withstand voltage test port 4, and a clamp connected to one end of the high-voltage line.

[0058] Preferred, Figure 3 The F1 button is equipped with a self-locking structure. Under normal circumstances, pressing the button will close the main circuit. When there is an abnormal power failure, the self-locking device will remain open, effectively preventing the main circuit from closing unexpectedly.

[0059] Preferably, when there is high voltage in the main circuit, a buzzer connected to the controller sounds an alarm and an indicator light flashes to warn test personnel not to approach. When the test is stopped or ended, the alarm stops and the indicator light goes out.

[0060] In this embodiment, all components of the testing auxiliary equipment are made from commercially available products.

[0061] Y00, Y01, and Y02 are all relays in the PLC. During use, the operator controls the J0, J1, and J2 relays to engage via the touch screen, thereby controlling the circuit to connect or disconnect.

[0062] The working principle of this auxiliary device is as follows:

[0063] The operator sets the target voltage via touchscreen 1. Controller 8 controls the voltage regulator 2, which takes an external power supply as input and outputs to the step-up transformer 3. High-voltage transformer 6 detects the output voltage of the step-up transformer 3, which is then transmitted to controller 8 via first transmitter 5 and displayed on touchscreen 1. Additionally, one end of the step-up transformer 3 is connected to the test port 4, where the withstand voltage test port 4 is pre-set with the object to be tested, such as electronic products or electrical appliances. A high-precision current protector 12 is connected to withstand voltage test port 4; when leakage current is detected, the voltage regulator 2 is disconnected. The other end of withstand voltage test port 4 is connected to controller 8 via second transmitter 7 and current transformer 11, displaying the current magnitude of the object being tested. During the withstand voltage test, if the object breaks down, the high-precision electronic current transformer 11 can quickly detect the set current value. Figure 4 The normally closed contact corresponding to the medium current transformer changes instantaneously, triggering the relay 9 to operate, causing the J3 contactor coil to lose power, which in turn causes the J3 normally open contact to open, de-energizing the KM1 coil. Then, the K2 normally open contact of contactor KM1 opens, causing the main circuit of voltage regulator 2 to be quickly disconnected, achieving efficient protection.

[0064] In summary, this equipment features a high-resolution display screen, providing a highly intuitive human-machine interface. Users can easily set parameters, precisely control operations, and clearly view test results, greatly improving the convenience and accuracy of operation. Using a high-performance PLC as the core control unit, it possesses powerful computing capabilities and high stability. It can quickly and accurately receive various signals and precisely control them according to preset program logic, efficiently driving the actions of related equipment. By employing an electrically adjustable voltage regulator, the output voltage can be precisely and smoothly adjusted to meet the withstand voltage testing requirements of various electrical products.

[0065] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A touch-sensitive withstand voltage testing auxiliary device, characterized in that, include: Touchscreen (1); Voltage regulator (2); The step-up transformer (3) has its input end connected to the voltage regulator (2) and its output end connected to the withstand voltage test port (4). The first transmitter (5) has its measurement input terminal connected to the step-up transformer (3) via a high-voltage transformer (6), and its measurement output terminal connected to the touch screen (1). The second transmitter (7) has its measurement input end connected to the withstand pressure test port (4) and its measurement output end connected to the touch screen (1).

2. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: The controller (8) is connected to the voltage regulator (2), and the touch screen (1) is connected to the first transmitter (5) and the second transmitter (7) through the controller (8).

3. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: The power supply (10) is connected to the voltage regulator (2).

4. The touch-sensitive withstand voltage testing auxiliary device according to claim 3, characterized in that, The step-up transformer (3) includes a primary side and a secondary side. The primary side is connected to the power supply (10) through a voltage regulator (2), and the secondary side is connected to the high-voltage transformer (6) and the withstand voltage test port (4) respectively.

5. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, The secondary side of the voltage regulator (2) is connected to the primary side of the step-up transformer (3), and a current transformer (11) is connected in series at the measurement input terminal of the second transmitter (7).

6. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: The current protector (12) is connected to the voltage regulator (2) and the withstand voltage test port (4), respectively.

7. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: The first relay, when turned on, increases the voltage of the coil in the voltage regulator (2); The second relay, when turned on, reduces the voltage of the coil in the voltage regulator (2).

8. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: The third relay is connected in series with the voltage regulator (2).

9. The touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: A contactor, the trigger coil of which is connected to the input terminal of the voltage regulator (2), and a normally open contact of which is connected in series with the voltage regulator (2); The fourth relay is connected in series with the contactor.

10. A touch-sensitive withstand voltage testing auxiliary device according to claim 1, characterized in that, Also includes: The high-voltage line is pluggable to the withstand voltage test port. A clamp is connected to one end of the high-voltage line.

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