A capacitor charge-discharge testing device

Abstract

The utility model discloses a capacitor charging and discharging test device, including lower machine case, the top of lower machine case is fixed with the upper explosion -proof test chamber, and the outside wall of upper explosion -proof test chamber is installed with PLC controller. The utility model uses, and the user opens electromagnetic lock, and then slides out capacitor and places the board, at this moment can place the product to be tested into the limiting recess, and the test plug of connecting test host and the leakage monitor are connected with the product respectively, then capacitor and places the board and pushes into the inside of upper explosion -proof test chamber, and through electromagnetic lock, capacitor and places the board are locked and fixed, this is through closed test space, and the security of charging and discharging test is improved, and through the leakage monitor of additional installation, the leakage condition of device and capacitor product can be monitored in real time, and the safety monitoring of test process is improved, and through the leakage condition of testing, whether capacitor product exists medium breakdown, the problem such as bad package can be found.

Description

Technical Field

[0001] This utility model relates to the field of capacitor charging and discharging testing technology, specifically to a capacitor charging and discharging testing device. Background Technology

[0002] Capacitors are widely used in power, electronics and communications fields. They are electronic components that can store electric charge and electric field energy. They consist of two mutually insulated conductors separated by a certain dielectric. The charging and discharging performance of a capacitor directly affects its quality. Therefore, capacitor charging and discharging testing devices are needed.

[0003] Capacitor charging and discharging test devices often only achieve simple full charge and full discharge functions and cannot simulate different temperature environments, resulting in relatively limited testing functions. Furthermore, since they operate directly in the external environment, their safety performance is low. Based on this, we propose a novel capacitor charging and discharging test device. Utility Model Content

[0004] The purpose of this invention is to provide a capacitor charging and discharging testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a capacitor charging and discharging testing device, comprising a lower chassis, an upper explosion-proof testing chamber fixed to the top of the lower chassis, a PLC controller installed on the outer wall of the upper explosion-proof testing chamber, a voltage monitoring meter, a current monitoring meter and a testing host installed sequentially inside the lower chassis, a cooling chamber and a heating chamber fixed to the two ends of the upper explosion-proof testing chamber respectively, an evaporator, a compressor and a condenser installed sequentially inside the cooling chamber, an infrared heating tube installed inside the heating chamber, a temperature sensor installed at the top of the upper explosion-proof testing chamber, a capacitor placement plate slidably connected to the bottom of the upper explosion-proof testing chamber, an electromagnetic lock installed between the upper explosion-proof testing chamber and the capacitor placement plate, a leakage current detector installed on the capacitor placement plate, and a testing plug extending to the top of the capacitor placement plate connected to the testing host via a wire.

[0006] Preferably, anti-slip rubber feet are installed at all four corners of the bottom of the lower chassis.

[0007] Preferably, both the voltage monitoring meter and the current monitoring meter are connected to the test host via wires.

[0008] Preferably, the edge of the capacitor placement plate is provided with a silicone rubber sealing layer that matches the upper explosion-proof test chamber.

[0009] Preferably, both ends of the capacitor placement plate are provided with connecting slides that match the upper explosion-proof test chamber.

[0010] Preferably, the capacitor placement plate is provided with a wire passage that matches the test plug.

[0011] Preferably, the inner walls of both the upper explosion-proof test chamber and the lower chassis are provided with an insulating varnish protective coating.

[0012] Preferably, the top of the capacitor placement plate is provided with a limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The capacitor charging and discharging test device optimizes its performance by installing temperature sensors, etc. The cooling chamber installed at one end of the explosion-proof test chamber is equipped with an evaporator, compressor and condenser. The evaporator absorbs refrigerant and then sends the compressed refrigerant into the condenser. The condenser sends the liquefied refrigerant into the evaporator through capillaries for evaporation and heat absorption, which can achieve the purpose of cooling. With the temperature monitoring feedback function of the temperature sensor on the explosion-proof test chamber, the explosion-proof test chamber can be intelligently controlled to be in a suitable low temperature test environment. In addition, the infrared electric heating tube inside the heating chamber installed at the other end of the explosion-proof test chamber generates heat after being powered on. With the temperature monitoring feedback function of the temperature sensor on the explosion-proof test chamber, the explosion-proof test chamber can be intelligently controlled to be in a suitable high temperature test environment. Thus, the device can simulate different high and low temperature environments for the capacitor charging and discharging test process, which is convenient for users to collect multiple sets of charging and discharging test data and improves the accuracy of the test results.

[0015] (2) The capacitor charging and discharging test device optimizes its structure by installing an electromagnetic lock. The user can open the electromagnetic lock through the PLC controller and then pull out the capacitor placement plate by using the sliding connection between the connecting slider and the upper explosion-proof test chamber. At this time, the capacitor product to be tested can be placed in the limiting groove, and the test plug and leakage current monitor connected to the test host can be connected to the product respectively. Then, the capacitor placement plate is pushed into the interior of the upper explosion-proof test chamber and locked and fixed by the electromagnetic lock. This not only improves the safety of charging and discharging test by sealing the test space, but also improves the safety monitoring of the test process by adding a leakage current monitor to monitor the leakage current of the device and the capacitor product in real time. Furthermore, the leakage current test can detect whether the capacitor product has problems such as dielectric breakdown or poor encapsulation. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a top view of a partial cross-sectional structure of the capacitor mounting plate of this utility model;

[0018] Figure 3 This is a top view sectional structural diagram of the present invention;

[0019] Figure 4 This is a side view sectional diagram of the heating chamber structure of this utility model;

[0020] Figure 5 This is a side view cross-sectional structural diagram of the cooling chamber of this utility model.

[0021] In the diagram: 1. Cooling chamber; 2. Upper explosion-proof test chamber; 3. Temperature sensor; 4. Heating chamber; 5. PLC controller; 6. Capacitor placement plate; 7. Lower chassis; 8. Anti-slip rubber feet; 9. Connecting slide bar; 10. Limiting groove; 11. Leakage detector; 12. Test plug; 13. Silicone rubber sealing layer; 14. Electromagnetic lock; 15. Voltage monitor; 16. Current monitor; 17. Test host; 18. Infrared heating tube; 19. Evaporator; 20. Compressor; 21. Condenser. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 An embodiment of this utility model is provided: a capacitor charging and discharging test device, including a lower chassis 7, an upper explosion-proof test chamber 2 fixed on the top of the lower chassis 7, a PLC controller 5 installed on the outer side wall of the upper explosion-proof test chamber 2, and a voltage monitoring meter 15, a current monitoring meter 16 and a test host 17 sequentially installed inside the lower chassis 7.

[0024] The upper explosion-proof test chamber 2 is fixed with a cooling chamber 1 and a heating chamber 4 at its two ends respectively. The cooling chamber 1 is equipped with an evaporator 19, a compressor 20 and a condenser 21 in sequence. The heating chamber 4 is equipped with an infrared electric heating tube 18. The upper explosion-proof test chamber 2 is equipped with a temperature sensor 3 at the top.

[0025] In use, the cooling chamber 1 installed at one end of the explosion-proof test chamber 2 contains an evaporator 19, a compressor 20, and a condenser 21. The evaporator 19 absorbs refrigerant and then sends the compressed refrigerant into the condenser 21. The condenser 21 sends the liquefied refrigerant into the evaporator 19 through capillaries for evaporation and heat absorption, thus achieving the purpose of cooling. Combined with the temperature monitoring and feedback function of the temperature sensor 3 on the explosion-proof test chamber 2, the explosion-proof test chamber 2 can be intelligently controlled to maintain a suitable low-temperature test environment. Furthermore, the infrared electric heating tube 18 inside the heating chamber 4 installed at the other end of the explosion-proof test chamber 2 generates heat when powered on. Combined with the temperature monitoring and feedback function of the temperature sensor 3 on the explosion-proof test chamber 2, the explosion-proof test chamber 2 can be intelligently controlled to maintain a suitable high-temperature test environment. This allows the device to simulate different high and low temperature environments for the capacitor charging and discharging test process, making it convenient for users to collect multiple sets of charging and discharging test data and improving the accuracy of the test results.

[0026] A capacitor placement plate 6 is slidably connected to the bottom of the upper explosion-proof test chamber 2. An electromagnetic lock 14 is installed between the upper explosion-proof test chamber 2 and the capacitor placement plate 6. A leakage current detector 11 is installed on the capacitor placement plate 6. A test plug 12 extending to the top of the capacitor placement plate 6 is connected to the test host 17 via a wire.

[0027] The edge of the capacitor placement plate 6 is provided with a silicone rubber sealing layer 13 that matches the upper explosion-proof test chamber 2;

[0028] Both ends of the capacitor placement plate 6 are equipped with connecting slides 9 that match the upper explosion-proof test chamber 2;

[0029] The capacitor mounting plate 6 is provided with a wire passage that matches the test plug 12;

[0030] The inner walls of the upper explosion-proof test chamber 2 and the lower chassis 7 are both equipped with an insulating varnish protective coating;

[0031] A limiting groove 10 is provided on the top of the capacitor placement plate 6;

[0032] In use, the user can open the electromagnetic lock 14 through the PLC controller 5, and then use the sliding connection between the connecting slider 9 and the upper explosion-proof test chamber 2 to pull out the capacitor placement plate 6. At this time, the capacitor product to be tested can be placed in the limiting groove 10, and the test plug 12 connected to the test host 17 and the leakage current monitor 11 are connected to the product respectively. Then, the capacitor placement plate 6 is pushed into the interior of the upper explosion-proof test chamber 2, and the capacitor placement plate 6 is locked and fixed by the electromagnetic lock 14. This not only improves the safety of charging and discharging test by sealing the test space, but also improves the safety monitoring of the test process by adding the leakage current monitor 11 to monitor the leakage current of the device and the capacitor product in real time. Furthermore, the leakage current test can detect whether the capacitor product has problems such as dielectric breakdown or poor encapsulation.

[0033] Anti-slip rubber feet 8 are installed at the four corners of the bottom of the lower chassis 7;

[0034] Voltage monitoring meter 15 and current monitoring meter 16 are both connected to the test host 17 via wires.

[0035] In this embodiment, when in use: With an external power supply, the user can open the electromagnetic lock 14 via the PLC controller 5, and then, utilizing the sliding connection between the connecting slider 9 and the upper explosion-proof test chamber 2, pull out the capacitor placement plate 6. The capacitor to be tested can then be placed into the limiting groove 10, and the test plug 12 connecting the test host 17 and the leakage current detector 11 are connected to the product respectively. Then, the capacitor placement plate 6 is pushed into the upper explosion-proof test chamber 2 and locked in place by the electromagnetic lock 14. This not only improves the safety of the charge-discharge test by enclosing the test space, but also enhances the safety monitoring of the test process by adding the leakage current detector 11, which can monitor the leakage current of the device and the capacitor in real time. Furthermore, by testing for leakage current, it is possible to detect problems such as dielectric breakdown or poor encapsulation in the capacitor. Simultaneously, the cooling chamber 1 installed at one end of the upper explosion-proof test chamber 2 houses an evaporator 19, a compressor 20, and a condenser 21. The evaporator 19 absorbs refrigerant and then sends the compressed refrigerant into the condenser 21 for condensation. The device 21 delivers liquefied refrigerant to the evaporator 19 via capillaries for evaporation and heat absorption, achieving the purpose of cooling. Combined with the temperature monitoring and feedback function of the temperature sensor 3 on the explosion-proof test chamber 2, it can intelligently regulate the explosion-proof test chamber 2 to maintain a suitable low-temperature testing environment. Furthermore, the infrared heating tube 18 inside the heating chamber 4 installed at the other end of the explosion-proof test chamber 2 generates heat when powered on. Combined with the temperature monitoring and feedback function of the temperature sensor 3 on the explosion-proof test chamber 2, it can intelligently regulate the explosion-proof test chamber 2 to maintain a suitable high-temperature testing environment. This allows the device to simulate different high and low temperature environments during the capacitor charging and discharging test process, facilitating the user to collect multiple sets of charging and discharging test data and improving the accuracy of the test results. Finally, the PLC controller 5 controls the test host 17 to charge and discharge the capacitor product according to the user-input program. Throughout the process, the voltage monitoring meter 15 and the current monitoring meter 16 can monitor the voltage and current values ​​in real time, allowing the capacitance to be calculated and displayed intuitively on the display screen of the PLC controller 5.

Claims

1. A capacitor charge / discharge testing device, characterized in that, The system includes a lower casing (7), with an upper explosion-proof test chamber (2) fixed to the top of the lower casing (7). A PLC controller (5) is installed on the outer wall of the upper explosion-proof test chamber (2). A voltage monitoring meter (15), a current monitoring meter (16), and a test host (17) are installed sequentially inside the lower casing (7). A cooling chamber (1) and a heating chamber (4) are fixed to the two ends of the upper explosion-proof test chamber (2). An evaporator (19), a compressor (20), and a condenser (21) are installed sequentially inside the cooling chamber (1). The heating chamber... (4) is equipped with an infrared heating tube (18), and a temperature sensor (3) is installed at the top of the upper explosion-proof test chamber (2). A capacitor placement plate (6) is slidably connected to the bottom of the upper explosion-proof test chamber (2). An electromagnetic lock (14) is installed between the upper explosion-proof test chamber (2) and the capacitor placement plate (6). A leakage current detector (11) is installed on the capacitor placement plate (6). A test plug (12) extending to the top of the capacitor placement plate (6) is connected to the test host (17) via a wire.

2. The capacitor charging and discharging testing device according to claim 1, characterized in that: The lower chassis (7) is equipped with anti-slip rubber feet (8) at the four corners of its bottom.

3. The capacitor charge / discharge testing device according to claim 1, characterized in that: The voltage monitoring meter (15) and the current monitoring meter (16) are both connected to the test host (17) via wires.

4. The capacitor charge / discharge testing device according to claim 1, characterized in that: The edge of the capacitor placement plate (6) is provided with a silicone rubber sealing layer (13) that matches the upper explosion-proof test chamber (2).

5. The capacitor charge / discharge testing device according to claim 1, characterized in that: Both ends of the capacitor placement plate (6) are provided with connecting slides (9) that match the upper explosion-proof test chamber (2).

6. The capacitor charge / discharge testing device according to claim 1, characterized in that: The capacitor placement plate (6) is provided with a wire passage that matches the test plug (12).

7. The capacitor charge / discharge testing device according to claim 1, characterized in that: The inner walls of the upper explosion-proof test chamber (2) and the lower chassis (7) are both provided with an insulating varnish protective coating.

8. The capacitor charging and discharging testing device according to claim 1, characterized in that: The top of the capacitor placement plate (6) is provided with a limiting groove (10).

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