Microwave power panel detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a microwave power panel detection device which comprises a microwave power panel. The cabinet body and the microwave power panel are arranged at intervals; the five large-current wiring terminals are arranged on one side of the cabinet body; the cabinet door is arranged on one side of the cabinet body; the primary ampere meter, the anode ampere meter, the stop signal lamp, the operation signal lamp, the start button and the stop button are arranged on the outer side of the cabinet door; the second air switch, the current transformer, the alternating current contactor, the magnetron and the grounding terminal are arranged on one side in the cabinet body; the microwave power panel is electrically connected with the five large-current wiring terminals; the device solves the problems that an existing microwave drying machine is narrow in detection space and low in speed, magnetron radiation hurts people, maintenance consumes time, and production is affected, convenient and efficient maintenance is achieved, manpower input is reduced, personnel safety is guaranteed, the detection accuracy is improved, and it is ensured that the alloy Kaldo furnace production task is smoothly advanced.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically a microwave power supply board detection device. Background Technology

[0002] Currently, the inspection of microwave power boards during microwave dryer maintenance generally uses the traditional method of moving the cable reel, using a clamp multimeter, and a brand-new magnetron.

[0003] However, the above methods have drawbacks. Due to the confined space inside the microwave dryer, the testing speed is slow. In addition, the exposed magnetrons can cause microwave radiation damage to people in the surrounding area. Furthermore, since a large number of microwave power boards need to be tested each time the microwave dryer is repaired, the traditional method requires multiple people to work together, which is time-consuming and labor-intensive. This can lead to the shutdown of subsequent processes for several days, affecting the production tasks of the alloy Kaldor furnace. Utility Model Content

[0004] The purpose of this invention is to provide a microwave power board testing device to solve the problems of low efficiency due to limited space, safety threats from exposed magnetrons, and the need for multiple people to cooperate in testing multiple boards, which affects production in traditional microwave power board testing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a microwave power board detection device, comprising a microwave power board, a cabinet spaced apart from the microwave power board, five high-current terminals on one side of the cabinet, a cabinet door on one side of the cabinet, a primary ammeter, an anode ammeter, a stop signal light, a run signal light, a start button, and a stop button on the outside of the cabinet door, and a second air switch, a current transformer, an AC contactor, a magnetron, and a grounding terminal on one side inside the cabinet; the microwave power board is electrically connected to all five high-current terminals; the magnetron is electrically connected to two high-current terminals; both ends of the anode ammeter are electrically connected to the grounding terminal and one high-current terminal, respectively; the output terminal of the current transformer is electrically connected to the grounding terminal after passing through the primary ammeter; the AC contactor is electrically connected to the second air switch, and the lower side of the AC contactor is electrically connected to the other two high-current terminals.

[0006] Furthermore, the cabinet is equipped with a heat dissipation component.

[0007] Furthermore, the heat dissipation assembly includes heat dissipation fans respectively disposed on opposite sides of the cabinet and a first air switch disposed inside the cabinet, wherein the first air switch is electrically connected to both heat dissipation fans.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention allows operators to determine the condition of microwave power supply boards during testing simply by pressing the start button on the cabinet door and observing the primary and anode ammeters on the door. The device integrates the magnetron inside the cabinet, solving problems associated with existing microwave dryer testing such as slow testing due to limited space, potential harm from magnetron radiation, and time-consuming microwave power supply board repairs that impact production. It improves ease of maintenance, speeds up the process, and reduces manpower requirements. Simultaneously, it avoids the risk of harm from magnetron microwave radiation, ensuring operator safety. Furthermore, it improves testing accuracy, preventing downtime in subsequent processes of the alloy Kaldor furnace due to maintenance delays and ensuring smooth production progress. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the microwave power supply board detection device of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the microwave power supply board detection device of this utility model.

[0012] Figure 3 This is a schematic diagram of the electrical principle of the microwave power board testing device of this utility model.

[0013] In the diagram: 1. Cabinet; 2. Cabinet door; 3. Primary ammeter; 4. Anode ammeter; 5. Stop indicator light; 6. Run indicator light; 7. Start button; 8. Stop button; 9. First air switch; 10. Second air switch; 11. Current transformer; 12. AC contactor; 13. Magnetron; 14. High current terminal block; 15. Grounding terminal block; 16. Cooling fan; 17. Microwave power supply board. Detailed Implementation

[0014] Please see Figure 1-3A microwave power supply board testing device includes a microwave power supply board 17, a cabinet 1 spaced apart from the microwave power supply board 17, five high-current terminals 14 located on the lower part of one side of the cabinet 1, a cabinet door 2 hinged to one side of the cabinet 1, a primary ammeter 3 (A1, range 0-10A), an anode ammeter 4 (A2, range 0-1A) installed on the outside of the cabinet door 2, a stop indicator light 5, a run indicator light 6, a start button 7 (green), and a stop button 8 (red), and two terminals located inside the cabinet 1 on one side. The cabinet includes a 16A second air switch 10 (for powering AC contactor 12 and microwave power board 17), a current transformer 11, a 12A AC contactor 12, a magnetron 13, and a grounding terminal 15; the cabinet 1 measures 350*450*250mm (width*height*depth) and is made of ABS corrosion-resistant material; the microwave power board 17 is electrically connected to five high-current terminals 14; the magnetron 13 is electrically connected to two high-current terminals 14; the two ends of the anode ammeter 4 are electrically connected to the grounding terminal 15 and one high-current terminal 14, respectively; the output terminal of the current transformer 11 is electrically connected to the grounding terminal 15 after passing through the primary ammeter 3; the AC contactor 12 is electrically connected to the second air switch 10, and the lower side of the AC contactor 12 is electrically connected to the other two high-current terminals 14.

[0015] In this embodiment, the primary ammeter 3 and the anode ammeter 4 are used to monitor the operation of the microwave power supply board; a one-way start circuit is configured using a start button 7 (green), a stop button 8 (red), a stop indicator light 5, a run indicator light 6, and an AC contactor 12. The start button 7 (green) and the stop button 8 are used to start and stop the AC contactor 12 inside the box; the stop indicator light 5 and the run indicator light 6 are used to monitor the operation of the AC contactor 12; the primary side of the main contacts of the AC contactor 12 is connected to the L and N terminals of the second air switch 10, and the secondary side is connected to the high-current terminal 14 outside the cabinet 1, for controlling the microwave power supply board 17. Power is applied or disconnected, and a current transformer 11 (with a transformation ratio of 10 / 5A) is installed on the live wire L. The output terminal of the current transformer 11 is connected to the grounding terminal 15 of the cabinet 1 after passing through the primary ammeter 3. One end of the anode ammeter 4 of the cabinet door 2 is connected to the grounding terminal 15 inside the cabinet 1, and the other end is connected to the high-current terminal 14 outside the cabinet 1. The output of the magnetron 13 is directly connected to the high-current terminal 14 outside the cabinet 1. The current transformer 11 and the primary ammeter 3 are used together. The high-current terminal 14 is used together with the microwave power board 17. The microwave power board 17 is used to trigger the magnetron 13 so that the magnetron 13 can work normally.

[0016] The cabinet 1 is equipped with a heat dissipation assembly. The heat dissipation assembly consists of a heat dissipation fan 16 installed on opposite sides of the cabinet 1 and a first air switch 9 with a capacity of 2P 16A installed inside the cabinet 1. The two heat dissipation fans 16 are symmetrically distributed on both sides of the cabinet 1 to provide stable heat dissipation for the cabinet 1. The first air switch 9 is electrically connected to both heat dissipation fans 16 and can control the live wire and the neutral wire at the same time to provide stable power to the two heat dissipation fans 16.

[0017] Working process and principle: Before testing, place cabinet 1 in a suitable position, turn on the two cooling fans 16 of cabinet 1, and connect the incoming (L, N, PE) and outgoing (+, -) wires of the microwave power board 17 to be tested to the high-current terminal 14 outside cabinet 1 in sequence, and then close cabinet door 2. When using, press the start button 7 on cabinet door 2, and judge the condition of microwave power board 17 by observing the primary ammeter 3 and anode ammeter 4 on cabinet door 2. If the pointers of primary ammeter 3 and anode ammeter 4 do not react, the microwave power board 17 is damaged (under normal circumstances, the primary current of microwave power board 17 is about 5A and the anode current is about 0.1 to 0.3A when it is working normally). If the pointer of primary ammeter 3 is about 5A and the pointer of anode ammeter 4 is about 0.1 to 0.3A, the microwave power board 17 is intact. Press the stop button 8 on the cabinet surface to cut off the power to microwave power board 17 and end the testing process.

[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microwave power supply board detection device, comprising a microwave power supply board (17), characterized in that, It also includes a cabinet (1) spaced apart from the microwave power supply board (17), five high-current terminals (14) on one side of the cabinet (1), a cabinet door (2) on one side of the cabinet (1), a primary ammeter (3), an anode ammeter (4), a stop signal light (5), a running signal light (6), a start button (7), and a stop button (8) on the outside of the cabinet door (2), and a second air switch (10), a current transformer (11), an AC contactor (12), a magnetron (13), and a grounding terminal (15) on one side inside the cabinet (1); the microwave power supply The plate (17) is electrically connected to five high-current terminals (14); the magnetron (13) is electrically connected to two high-current terminals (14); the two ends of the anode ammeter (4) are electrically connected to the grounding terminal (15) and a high-current terminal (14) respectively; the output end of the current transformer (11) is electrically connected to the grounding terminal (15) after passing through the primary ammeter (3); the AC contactor (12) is electrically connected to the second air switch (10), and the lower side of the AC contactor (12) is electrically connected to the other two high-current terminals (14).

2. The detection device according to claim 1, characterized in that, The cabinet (1) is equipped with a heat dissipation component.

3. The detection device according to claim 2, characterized in that, The heat dissipation assembly includes heat dissipation fans (16) respectively installed on opposite sides of the cabinet (1) and a first air switch (9) installed inside the cabinet (1). The first air switch (9) is electrically connected to both heat dissipation fans (16).

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