A circuit for capacitor charge-discharge screening test of ignition device energy storage

Abstract

This application belongs to the field of energy storage mica capacitor charging and discharging screening, and specifically relates to a circuit for screening the charging and discharging of capacitors used in ignition devices for energy storage. The circuit includes a timing control circuit, a boost regulation circuit, a boost circuit, and a rectifier charging and discharging circuit. The boost regulation circuit is located between the timing control circuit and the boost circuit, and the rectifier charging and discharging circuit is located between the boost circuit and the test capacitor. The timing control circuit includes a programmable relay. The boost regulation circuit includes a single-phase voltage regulator, capable of continuously adjusting the input voltage. The boost circuit consists of an AC transformer, capable of further boosting the voltage output from the voltage regulator. During the capacitor screening test, the programmable relay controls the circuit's on / off time and the number of on / off cycles, while the voltage regulator continuously adjusts the input voltage. The boost and charging / discharging circuits test the capacitor's charging and discharging function.

Description

Technical Field

[0001] This application belongs to the field of energy storage mica capacitor charge and discharge screening, and specifically relates to a circuit for energy storage capacitor charge and discharge screening test of ignition device. Background Technology

[0002] Various types of mica capacitors are screened according to specific technical requirements. This traditional method has significant technical drawbacks:

[0003] Excessive specialization: Each type and specification of capacitor requires a dedicated screening test circuit, lacking a universal design, resulting in wasted equipment resources and increased maintenance costs.

[0004] Functional limitation: Existing screening circuits can only meet basic charge and discharge test requirements and cannot adapt to increasingly stringent test standards.

[0005] With the increasing demands for reliability in defense equipment, the selection criteria for capacitors have undergone significant changes:

[0006] Upgraded charge / discharge cycle requirements: The requirement has been increased from a few charge / discharge cycles to several hundred, placing higher demands on the durability and stability of the circuit.

[0007] Discharge frequency control requirements: It is necessary to achieve a continuously adjustable discharge frequency to simulate the actual working conditions under different operating conditions.

[0008] Testing efficiency requirements: Traditional single-test, single-group testing methods can no longer meet the testing efficiency requirements of mass production.

[0009] Therefore, how to design an effective general-purpose test circuit is a problem that needs to be solved. Summary of the Invention

[0010] To address the aforementioned issues, this application provides a circuit for screening the charge and discharge of capacitors used in ignition devices, thereby resolving the problem that the traditional single-set testing method in the prior art can no longer meet the testing efficiency requirements under mass production.

[0011] The technical solution of this application is: a circuit for screening the charging and discharging of capacitors used for energy storage in ignition devices, including a timing control circuit, a boost regulation circuit, a boost circuit, and a rectifier charging and discharging circuit;

[0012] The boost regulation circuit is located between the timing control circuit and the boost circuit, and the rectifier charging and discharging circuit is located between the boost circuit and the test capacitor.

[0013] The timing control circuit includes a programmable relay, which can set the circuit turn-on time, turn-off time, and number of turn-on operations.

[0014] The boost regulation circuit includes a single-phase voltage regulator, which enables continuous adjustment of the input voltage;

[0015] The boost circuit consists of an AC transformer, which can boost the voltage output by the voltage regulator a second time.

[0016] The rectifier charging and discharging circuit is used to test the charging and discharging function of the capacitor.

[0017] Preferably, the charging and discharging circuit includes a voltage multiplier circuit, a rectifier circuit, a first discharging circuit, and a second discharging circuit.

[0018] The voltage multiplier circuit is connected to the rectifier circuit, and the output terminal of the rectifier circuit is connected to the first discharge circuit and the second discharge circuit.

[0019] The test capacitors consist of two sets, which are respectively located between the rectifier circuit and the first discharge circuit, and between the rectifier circuit and the second discharge circuit.

[0020] Preferably, the voltage multiplier circuit includes a first capacitor, a first diode, and a first resistor; one end of the first capacitor is connected to the step-up transformer and the other end is connected to the resistor; the positive terminal of the first diode is connected to the first resistor and the negative terminal is connected to the rectifier circuit.

[0021] Preferably, the rectifier circuit includes a second resistor, a second diode, and a third diode, wherein the second diode and the third diode are connected in parallel, one end of the second resistor is connected to the negative terminal of the first diode, and the other end is connected to the positive terminals of the second diode and the third diode, and the negative terminals of the second diode and the third diode are respectively connected to the first discharge circuit and the second discharge circuit.

[0022] Preferably, the first discharge circuit includes a first discharge tube, a third resistor, and a fourth resistor. One end of the first discharge tube is connected to the negative terminal of the second diode, and the other end is connected to the third resistor. The third resistor and the fourth resistor are connected in parallel.

[0023] Preferably, the second discharge circuit includes a second discharge tube, a fifth resistor, and a sixth resistor. One end of the second discharge tube is connected to the negative terminal of the third diode, and the other end is connected to the fifth resistor. The fifth resistor and the sixth resistor are connected in parallel.

[0024] Preferably, each group of test capacitors has two capacitors connected in parallel. The first group of test capacitors includes a second capacitor and a third capacitor, and the second group of test capacitors includes a fourth capacitor and a fifth capacitor.

[0025] The circuit for the charge-discharge screening test of the energy storage capacitor in the ignition device provided in this application has the following advantages:

[0026] During the capacitor screening test, programmable relays are used to control the circuit connection and disconnection time and the number of connection cycles, and a voltage regulator is used to continuously adjust the input voltage. The charging and discharging function of the capacitor is tested through a boost and charge / discharge circuit. Attached Figure Description

[0027] Figure 1 This is the overall circuit block diagram of this application;

[0028] Figure 2 This is the specific circuit schematic diagram for this application.

[0029] 1. Programmable relay; 2. Single-phase voltage regulator; 3. AC transformer; 4. First capacitor; 5. First diode; 6. First resistor; 7. Second resistor; 8. Second diode; 9. Third diode; 10. First discharge tube; 11. Third resistor; 12. Fourth resistor; 13. Second discharge tube; 14. Fifth resistor; 15. Sixth resistor; 16. Second capacitor; 17. Third capacitor; 18. Fourth capacitor; 19. Fifth capacitor. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only a part of the embodiments of this application, not all of them. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0031] The first aspect of this application provides a circuit for a charge-discharge screening test of a capacitor used in an ignition device for energy storage, such as... Figures 1-2 It includes timing control circuit, boost regulation circuit, boost circuit and rectifier charging and discharging circuit;

[0032] The boost regulation circuit is located between the timing control circuit and the boost circuit, and the rectifier charging and discharging circuit is located between the boost circuit and the test capacitor.

[0033] The timing control circuit includes a programmable relay 1, which can set the circuit's on-time, off-time, and number of on-time operations;

[0034] The boost regulation circuit includes a single-phase voltage regulator 2, which can realize continuous regulation of the input voltage;

[0035] The boost circuit consists of AC transformer 3, which can boost the voltage output by the voltage regulator a second time;

[0036] The rectifier charging and discharging circuit is used to test the charging and discharging function of the capacitor.

[0037] The organic combination of four functional modules—timing control, boost regulation, boost circuit, and rectification charging / discharging—forms a hierarchical circuit structure, improving system maintainability and scalability. The modular design allows the circuit to adapt to energy storage capacitors in ignition devices of different specifications, overcoming the limitations of dedicated test circuits. The coordinated operation of the timing control circuit and the boost regulation circuit ensures precise control of charging / discharging time and voltage parameters.

[0038] Preferably, the charging and discharging circuit includes a voltage multiplier circuit, a rectifier circuit, a first discharging circuit, and a second discharging circuit.

[0039] The voltage multiplier circuit is connected to the rectifier circuit, and the output terminal of the rectifier circuit is connected to the first discharge circuit and the second discharge circuit.

[0040] There are two sets of test capacitors, which are respectively located between the rectifier circuit and the first discharge circuit, and between the rectifier circuit and the second discharge circuit.

[0041] By setting up two independent discharge circuits, two sets of capacitors can be tested simultaneously, significantly improving screening efficiency. The cascaded structure of voltage multiplier → rectification → discharge ensures high efficiency and stability of energy transfer.

[0042] Preferably, the voltage multiplier circuit includes a first capacitor 4, a first diode 5, and a first resistor 6; one end of the first capacitor 4 is connected to the step-up transformer and the other end is connected to the resistor; the positive terminal of the first diode 5 is connected to the first resistor 6 and the negative terminal is connected to the rectifier circuit.

[0043] Through the synergistic effect of the first capacitor 4, the first diode 5, and the first resistor 6, the input voltage is effectively multiplied to meet the high voltage test requirements. The current limiting effect of the first resistor 6 prevents overcurrent from impacting subsequent circuits and improves system reliability.

[0044] Preferably, the rectifier circuit includes a second resistor 7, a second diode 8, and a third diode 9. The second diode 8 and the third diode 9 are connected in parallel. One end of the second resistor 7 is connected to the negative terminal of the first diode 5, and the other end is connected to the positive terminals of the second diode 8 and the third diode 9. The negative terminals of the second diode 8 and the third diode 9 are respectively connected to the first discharge circuit and the second discharge circuit.

[0045] The parallel connection of the second diode 8 and the third diode 9 provides a stable DC power supply for the two discharge circuits. The configuration of the second resistor 7 ensures the balance of the two output currents and guarantees the consistency of the test results.

[0046] Preferably, the first discharge circuit includes a first discharge tube 10, a third resistor 11 and a fourth resistor 12. One end of the first discharge tube 10 is connected to the negative terminal of the second diode 8 and the other end is connected to the third resistor 11. The third resistor 11 and the fourth resistor 12 are connected in parallel.

[0047] The first discharge tube 10 serves as a key switching device, enabling precise control of the discharge process. The parallel design of the third resistor 11 and the fourth resistor 12 provides both normal current limiting function and backup protection in case of a fault on one side.

[0048] Preferably, the second discharge circuit includes a second discharge tube 13, a fifth resistor 14 and a sixth resistor 15. One end of the second discharge tube 13 is connected to the negative terminal of the third diode 9 and the other end is connected to the fifth resistor 14. The fifth resistor 14 and the sixth resistor 15 are connected in parallel.

[0049] The symmetrical design of the second discharge circuit and the first discharge circuit ensures the consistency of the two test conditions. The two discharge circuits are independent of each other, and a fault in one circuit will not affect the normal operation of the other circuit.

[0050] Preferably, each group of test capacitors has two capacitors connected in parallel. The first group of test capacitors includes a second capacitor 16 and a third capacitor 17, and the second group of test capacitors includes a fourth capacitor 18 and a fifth capacitor 19.

[0051] The parallel connection of two capacitors in each group doubles the capacity of a single test, greatly improving the screening efficiency. The test results of capacitors connected in parallel within the same group can be mutually verified, improving the reliability of the test results. It supports the simultaneous testing of up to four capacitors, meeting the needs of industrial mass production.

[0052] In summary, this application has the following advantages:

[0053] During the capacitor screening test, programmable relays are used to control the circuit connection and disconnection time and the number of connection cycles, and a voltage regulator is used to continuously adjust the input voltage. The charging and discharging function of the capacitor is tested through a boost and charge / discharge circuit.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A circuit for screening the charge and discharge of a capacitor used in an ignition device for energy storage, characterized in that, It includes timing control circuit, boost regulation circuit, boost circuit and rectifier charging and discharging circuit; The boost regulation circuit is located between the timing control circuit and the boost circuit, and the rectifier charging and discharging circuit is located between the boost circuit and the test capacitor. The timing control circuit includes a programmable relay (1), which can set the circuit turn-on time, turn-off time and the number of turn-on operations; The boost regulation circuit includes a single-phase voltage regulator (2), which can realize continuous regulation of the input voltage; The boost circuit consists of an AC transformer (3), which can boost the voltage output by the voltage regulator a second time. The rectifier charging and discharging circuit is used to test the charging and discharging function of the capacitor.

2. The circuit for the charge / discharge screening test of the energy storage capacitor of the ignition device as described in claim 1, characterized in that, The charging and discharging circuit includes a voltage multiplier circuit, a rectifier circuit, a first discharge circuit, and a second discharge circuit. The voltage multiplier circuit is connected to the rectifier circuit, and the output terminal of the rectifier circuit is connected to the first discharge circuit and the second discharge circuit. The test capacitors consist of two sets, which are respectively located between the rectifier circuit and the first discharge circuit, and between the rectifier circuit and the second discharge circuit.

3. The circuit for the charge / discharge screening test of the energy storage capacitor of the ignition device as described in claim 2, characterized in that, The voltage multiplier circuit includes a first capacitor (4), a first diode (5), and a first resistor (6); one end of the first capacitor (4) is connected to the step-up transformer and the other end is connected to the resistor; the positive terminal of the first diode (5) is connected to the first resistor (6) and the negative terminal is connected to the rectifier circuit.

4. The circuit for the charge / discharge screening test of the energy storage capacitor of the ignition device as described in claim 3, characterized in that, The rectifier circuit includes a second resistor (7), a second diode (8), and a third diode (9). The second diode (8) and the third diode (9) are connected in parallel. One end of the second resistor (7) is connected to the negative terminal of the first diode (5), and the other end is connected to the positive terminals of the second diode (8) and the third diode (9). The negative terminals of the second diode (8) and the third diode (9) are respectively connected to the first discharge circuit and the second discharge circuit.

5. The circuit for the charge / discharge screening test of the energy storage capacitor of the ignition device as described in claim 4, characterized in that, The first discharge circuit includes a first discharge tube (10), a third resistor (11) and a fourth resistor (12). One end of the first discharge tube (10) is connected to the negative terminal of the second diode (8) and the other end is connected to the third resistor (11). The third resistor (11) and the fourth resistor (12) are connected in parallel.

6. The circuit for the charge / discharge screening test of the energy storage capacitor of the ignition device as described in claim 4, characterized in that, The second discharge circuit includes a second discharge tube (13), a fifth resistor (14) and a sixth resistor (15). One end of the second discharge tube (13) is connected to the negative terminal of the third diode (9) and the other end is connected to the fifth resistor (14). The fifth resistor (14) and the sixth resistor (15) are connected in parallel.

7. The circuit for the charge / discharge screening test of the energy storage capacitor of the ignition device as described in claim 2, characterized in that, Each set of test capacitors consists of two capacitors connected in parallel. The first set of test capacitors includes a second capacitor (16) and a third capacitor (17), and the second set of test capacitors includes a fourth capacitor (18) and a fifth capacitor (19).

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