Pressure release testing system and method for aviation fire extinguishing bottle

Abstract

The invention provides a pressure release test system and method for an aviation fire extinguishing bottle, and belongs to the technical field of fire extinguishing bottles, and the system comprises a lithium battery pack, an igniter, a reset switch, a charging interface, an adjustable voltage increasing and decreasing module, a voltage increasing and decreasing module, a voltage increasing and decreasing module and a voltage increasing and decreasing module, the adjustable boost-buck module is used for carrying out voltage regulation based on electric energy provided by the lithium battery pack to obtain regulated voltage, the timer module is electrically connected with the adjustable boost-buck module and the reset switch, the output interface is electrically connected with the adjustable boost-buck module and the reset switch and used for outputting the regulated voltage, and the igniter is electrically connected with the output interface and the reset switch and used for outputting the regulated voltage. When the reset switch is closed, power is supplied to the device based on the adjusting voltage, and the aviation fire extinguishing bottle is opened for pressure release testing. According to the invention, the adjustable voltage boosting module is used for carrying out voltage adjustment to adapt to a pressure release test of the fire extinguishing bottle.

Description

Technical Field

[0001] The invention relates to the technical field of fire extinguisher bottles, and in particular to a pressure release test system and method for aviation fire extinguisher bottles. Background Art

[0002] The voltages required for pressure release tests of various fire extinguisher bottles in the prior art are generally different, mainly due to the wide variety of aviation fire extinguisher bottles. Therefore, it is necessary to combine a variety of test instruments for comprehensive analysis.

[0003] There are many problems in the existing technology during testing, such as: the problem of aging of the circuit of the pressure release test equipment, mainly because the light bulb configured by the equipment is an incandescent light bulb, and there will be certain safety hazards when directly connected to 220V AC during use; the problem of inaccurate manual timing, mainly because the time record of the pressure release test of the aviation fire extinguisher bottle is timed by a manually operated stopwatch. Since there is still some time from the release to the reflection of the timekeeper, this time period will cause the test time to be inaccurate due to the speed of individual reaction ability; the function of the pressure release test equipment is too single, because the continuous increase in test models and the increase in the types of aviation fire extinguishers, the voltage required for the release test is also different, and the existing test equipment cannot meet people's needs; the light source and the color of the light affect the accuracy of the inspection. During the repair process of the aviation fire extinguisher bottle, the internal state of the bottle body is easily stimulated by the inspector due to the point light source and the color of the light, making it difficult for the inspector to see clearly and it is not easy to accurately determine the rust, pressure pits and foreign matter adhesion. Therefore, the existing technology cannot provide a technical problem of multiple voltages for adaptation for the pressure release test of the fire extinguisher bottle. Summary of the invention

[0004] In view of this, it is necessary to provide a pressure release test system and method for aviation fire extinguisher bottles to solve the technical problem that the existing technology cannot provide multiple voltages for adaptation for the pressure release test of fire extinguisher bottles.

[0005] In order to solve the above technical problems, on the one hand, the present invention provides a pressure release test system for an aviation fire extinguisher bottle, comprising: Lithium battery pack, igniter and reset switch; The charging interface is connected in parallel with the lithium battery pack and is used to connect the charger to replenish the lithium battery pack; An adjustable buck-boost module is electrically connected to the lithium battery pack and is used to adjust the voltage based on the electric energy provided by the lithium battery pack to obtain an adjusted voltage; A timer module is electrically connected to the adjustable buck-boost module and the reset switch; An output interface, electrically connected to the adjustable buck-boost module and the reset switch, for outputting a regulated voltage; The igniter is electrically connected to the output interface and the reset switch, and is used to power itself based on the regulated voltage when the reset switch is closed, and open the aviation fire extinguisher bottle to perform a pressure release test.

[0006] In a possible implementation, the system further includes: The borescope light is electrically connected to the charging interface and is used to adjust the voltage based on the electric energy provided by the lithium battery pack to obtain the adjusted voltage, and provide electric energy to the borescope light based on the adjusted voltage.

[0007] In a possible implementation, the borescope light includes: Round plug and adjustable buck-boost module; One end of the circular plug is electrically connected to the charging interface, and the other end of the circular plug is electrically connected to the adjustable buck-boost module.

[0008] In a possible implementation, the adjustable buck-boost module includes: A switch management unit, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first inductor and a switch MOS tube; One end of the first resistor is electrically connected to the VIN pin of the switch management unit, and the other end of the first resistor is electrically connected to the EXT pin of the switch management unit; The VIN pin of the switch management unit is electrically connected to the charging interface, the VL pin of the switch management unit is electrically connected to the first capacitor, the FREQ pin of the switch management unit is electrically connected to the second resistor, the COMP pin of the switch management unit is electrically connected to one end of the third resistor, the other end of the third resistor is electrically connected to the second capacitor, the EXT pin of the switch management unit is electrically connected to the first resistor and the switch MOS tube respectively, the other end of the switch MOS tube is electrically connected to one end of the first inductor, the CS pin of the switch management unit is electrically connected to the other end of the first inductor, the VREF pin of the switch management unit is electrically connected to the fourth capacitor, and the FB pin of the switch management unit is electrically connected to the third capacitor.

[0009] In a possible implementation, the adjustable buck-boost module further includes: A fourth resistor is electrically connected to the CS pin of the switch management unit and the first inductor respectively.

[0010] In a possible implementation, the adjustable buck-boost module further includes: The first diode is electrically connected to the switch MOS tube and the first inductor respectively.

[0011] In a possible implementation, the adjustable buck-boost module further includes: A potentiometer is electrically connected to the first diode.

[0012] In a possible implementation, the adjustable buck-boost module further includes: The fifth resistor is electrically connected to the potentiometer and the third capacitor respectively.

[0013] In a possible implementation, the adjustable buck-boost module further includes: The fifth capacitor is electrically connected to the first diode.

[0014] On the other hand, the present invention also provides a pressure release test method for an aviation fire extinguisher bottle, comprising: The adjustable buck-boost module adjusts the voltage based on the electric energy provided by the lithium battery pack to obtain the regulated voltage; When the reset switch is closed, the igniter powers itself based on the regulated voltage and opens the aviation fire extinguisher bottle for pressure release testing.

[0015] The beneficial effects of the present invention are as follows: the pressure release test system of the aviation fire extinguisher provided by the present invention comprises: a lithium battery pack, an igniter and a reset switch; a charging interface, connected in parallel with the lithium battery pack, for connecting a charger to supplement electric energy to the lithium battery pack; an adjustable buck-boost module, electrically connected to the lithium battery pack, for regulating the voltage based on the electric energy provided by the lithium battery pack to obtain a regulated voltage; a timer module, electrically connected to the adjustable buck-boost module and the reset switch; an output interface, electrically connected to the adjustable buck-boost module and the reset switch, for outputting a regulated voltage; an igniter, electrically connected to the output interface and the reset switch, for powering itself based on the regulated voltage when the reset switch is closed, and opening the aviation fire extinguisher for a pressure release test. The present invention proposes an adjustable boost module for voltage regulation. The adjustable boost module includes: an inductor and an adjusting potentiometer. The module mainly utilizes the non-mutability of the current in the inductor. The current size will not mutate due to power failure. When the switch tube is disconnected, the current released instantaneously by the inductor is equal to the current during charging. When the potentiometer is adjusted to increase the resistance value, the voltage becomes larger. When the potentiometer is adjusted to reduce the resistance value, the voltage becomes smaller. Therefore, the pressure release test of the fire extinguisher can be adapted to multiple voltages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1A schematic structural diagram of an embodiment of a pressure release test system for an aviation fire extinguisher bottle provided by the present invention; Figure 2 A schematic diagram of an embodiment of a pressure release test system for an aviation fire extinguisher bottle provided by the present invention; Figure 3 A circuit diagram of an adjustable buck-boost module of an embodiment of a pressure release test system for an aviation fire extinguisher bottle provided by the present invention; Figure 4 A schematic flow chart of an embodiment of a pressure release test method for an aviation fire extinguisher bottle provided by the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] In the description of the embodiments of the present application, unless otherwise specified, “plurality” means two or more than two.

[0020] The terms "including" and "having" and any variations thereof in the embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules not clearly listed or inherent to these processes, methods, products or equipment.

[0021] The naming or numbering of the steps in the embodiments of the present invention does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The present invention provides a pressure release test system and method for an aviation fire extinguisher bottle, which are respectively described below.

[0024] Figure 1 A schematic diagram of an embodiment of the pressure release test system for aviation fire extinguisher bottles provided by the present invention and Figure 2 The schematic diagram of an embodiment of the pressure release test system for aviation fire extinguisher bottles provided by the present invention comprises: Lithium battery pack 102, igniter 107 and reset switch 105; The charging interface 101 is connected in parallel with the lithium battery pack 102 and is used to connect a charger to replenish the lithium battery pack 102 with electric energy; The adjustable buck-boost module 103 is electrically connected to the lithium battery pack 102 and is used to adjust the voltage based on the electric energy provided by the lithium battery pack 102 to obtain an adjusted voltage; The timer module 104 is electrically connected to the adjustable buck-boost module 103 and the reset switch 105; The output interface 106 is electrically connected to the adjustable buck-boost module 103 and the reset switch 105 and is used to output a regulated voltage; The igniter 107 is electrically connected to the output interface 106 and the reset switch 105, and is used to power itself based on the regulated voltage when the reset switch 105 is closed, and open the aviation fire extinguisher bottle to perform a pressure release test.

[0025] It is understandable that the timer module 104 is electrically connected to the adjustable buck-boost module 103 and the reset switch 105, and is used to receive the electric energy provided by the regulated voltage, and starts timing when the reset switch 105 is closed, and stops timing when the reset switch 105 is opened.

[0026] It can be understood that the system is powered by the igniter 107 to detonate the electric squib. When the electric squib explodes, high-pressure gas is generated. The gas pushes the piston inside the product. The piston pushes the lever, and the lever lock opens. The valve also opens accordingly, and the high-pressure gas in the fire extinguisher bottle is immediately ejected from the nozzle for pressure release test.

[0027] It can be further understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0028] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0029] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0030] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0031] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0032] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0033] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands.) to avoid hidden dangers to personal safety caused by accidental ignition.

[0034] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0035] In some embodiments of the present invention, the system further comprises: The borescope light is electrically connected to the charging interface 101 and is used to adjust the voltage based on the electric energy provided by the lithium battery pack 102 to obtain the adjusted voltage, and provide electric energy for the borescope light based on the adjusted voltage.

[0036] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0037] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0038] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0039] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0040] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0041] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0042] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0043] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0044] In some embodiments of the present invention, the borescope light comprises: Round plug and adjustable buck-boost module 103; One end of the circular plug is electrically connected to the charging interface 101 , and the other end of the circular plug is electrically connected to the adjustable buck-boost module 103 .

[0045] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0046] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0047] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0048] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0049] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0050] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0051] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0052] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0053] Figure 3 The circuit diagram of the adjustable boost / lower pressure module 103 of one embodiment of the pressure release test system for aviation fire extinguisher bottles provided by the present invention includes: A switch management unit, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first inductor and a switch MOS tube; One end of the first resistor is electrically connected to the VIN pin of the switch management unit, and the other end of the first resistor is electrically connected to the EXT pin of the switch management unit; The VIN pin of the switch management unit is electrically connected to the charging interface 101, the VL pin of the switch management unit is electrically connected to the first capacitor, the FREQ pin of the switch management unit is electrically connected to the second resistor, the COMP pin of the switch management unit is electrically connected to one end of the third resistor, and the other end of the third resistor is electrically connected to the second capacitor, the EXT pin of the switch management unit is electrically connected to the first resistor and the switch MOS tube respectively, the other end of the switch MOS tube is electrically connected to one end of the first inductor, the CS pin of the switch management unit is electrically connected to the other end of the first inductor, the VREF pin of the switch management unit is electrically connected to the fourth capacitor, and the FB pin of the switch management unit is electrically connected to the third capacitor.

[0054] It is understandable that the energy storage of the inductor can be controlled by utilizing the non-mutational nature of the current in the inductor (the current direction and current magnitude will not change suddenly due to power failure) in conjunction with the switching tube.

[0055] When the switch is turned on, the inductor starts to store energy; when the switch is turned off, the inductor starts to release energy.

[0056] Since the current characteristics of the inductor cannot change suddenly, when the switch tube is turned off, the current released by the inductor instantly is equal to the current when storing energy. From U=IR, it can be seen that when the current remains unchanged, the voltage increases by adjusting the potentiometer to increase the resistance value, that is: I*R↑=U↑. When the switch tube works repeatedly, a periodic high voltage waveform is obtained. At this time, a capacitor filter is connected in parallel at the output end to obtain a stable high voltage output.

[0057] It can be further understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0058] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0059] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0060] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0061] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0062] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0063] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0064] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0065] exist Figure 3 In the example, the VIN pin of the switch management unit is the voltage input of the chip.

[0066] The VL pin of the switch management unit is the power supply of the chip.

[0067] The FREQ pin of the switch management unit is: Add a fixed resistance resistor and ground it to obtain a stable frequency to control the EXT of the switch management unit.

[0068] The Comp pin of the switch management unit is: compensation. By connecting a resistor and a capacitor in series and grounding them, the operational amplifier loop inside the chip can be compensated, which can make the operational amplifier loop work more stably.

[0069] The CS pin of the switch management unit is: current sampling, which is used to detect the current flowing through the inductor.

[0070] The Vref pin of the switch management unit is: reference voltage. It can output a stable reference voltage.

[0071] The FB pin of the switch management unit is: voltage feedback, which can set the output voltage.

[0072] The GND of the switch management unit is: ground.

[0073] The PGND of the switch management unit is: power ground.

[0074] Under the control of the power management unit, the output of the boost circuit is made more stable and efficient.

[0075] In some embodiments of the present invention, the adjustable buck-boost module 103 further includes: A fourth resistor is electrically connected to the CS pin of the switch management unit and the first inductor respectively.

[0076] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0077] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0078] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0079] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0080] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0081] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0082] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0083] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0084] In some embodiments of the present invention, the adjustable buck-boost module 103 further includes: The first diode is electrically connected to the switch MOS tube and the first inductor respectively.

[0085] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0086] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0087] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0088] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0089] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0090] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0091] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0092] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0093] In some embodiments of the present invention, the adjustable buck-boost module 103 further includes: A potentiometer is electrically connected to the first diode.

[0094] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0095] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0096] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0097] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0098] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0099] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0100] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0101] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0102] In some embodiments of the present invention, the adjustable buck-boost module 103 further includes: The fifth resistor is electrically connected to the potentiometer and the third capacitor respectively.

[0103] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0104] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0105] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0106] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0107] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0108] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0109] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0110] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0111] In some embodiments of the present invention, the adjustable buck-boost module 103 further includes: The fifth capacitor is electrically connected to the first diode.

[0112] It can be understood that the present invention redesigns the circuit of the aviation fire extinguisher bottle pressure release test equipment, optimizes the ignition logic, adds a timing logic circuit, improves the test safety, test convenience and timing accuracy, and expands the fault detection lamp. The specific scheme is as follows: (1) The new operating logic is used to solve the single problem of pressure release test, powered by 7.4V lithium battery, and the adjustable boost module is used to achieve the power supply demand in the range of 0.6V-36V. In this way, the X7 type test voltage of 27V and the X8 type test voltage of 14V can be used.

[0113] It is powered by a built-in battery with high integration and small size. It can be used for one year after being fully charged. There is no restriction on power supply. The pressure release test does not need to be limited to indoors or require the use of a terminal block or a winding reel to conduct the test. It gets rid of the space limitation and improves the convenience of work.

[0114] (2) Timer part: Two synchronizations are adopted. The ignition switch is turned on and the timing is synchronized, and the start of the pressure release test is synchronized with the end of the timing, so as to avoid the error of manual timing and improve the timing accuracy.

[0115] (3) Solve the problem of aging of test equipment lines: The existing equipment has been used for more than 20 years. Due to aging and hardening of the lines and unstable power supply voltage, long-term use has prolonged the pressure release test time. The newly developed equipment uses a soft, high-temperature resistant silicone outer sheath and a copper silver-plated wire core, which solves the problem of product technical indicators being affected by aging of the lines and unstable power supply voltage.

[0116] (4) Improvement of fault detection lamp: The double-sided cold white light beads are used to provide 360-degree all-round lighting. The voltage can be adjusted to change the brightness of the light source. This allows for more accurate and efficient observation of rust, pitting, foreign matter adhesion, etc. inside the bottle, effectively shortening the inspection time.

[0117] (5) Improvement of test safety: The power supply was changed from 220V AC to 7.4V DC to improve the safety of test electricity.

[0118] (6) Improvement of test safety and reliability: Add protection mechanism to prevent accidental ignition of the explosion cap of the aviation fire extinguisher bottle and injuring people (the explosion cap of the aviation fire extinguisher bottle is installed in the hole. It is extremely dangerous to accidentally ignite the explosion cap when installing the explosion cap of the aviation fire extinguisher bottle. It is like blocking a bullet with bare hands and will cause great damage to the hands). Avoid hidden dangers to personal safety caused by accidental ignition.

[0119] The switch is powered only when pressed and automatically powers off when released to prevent the explosion cap of the aviation fire extinguisher bottle from exploding and injuring people; even if a single person operates it, it will not accidentally ignite or explode, which optimizes the test process and reduces the waste of time resources in multi-person collaboration.

[0120] Figure 4 A schematic flow chart of an embodiment of a pressure release test method for an aviation fire extinguisher bottle provided by the present invention includes: S401, the adjustable buck-boost module performs voltage regulation based on the electric energy provided by the lithium battery pack to obtain a regulated voltage; S402. When the reset switch is closed, the igniter supplies power to itself based on the regulated voltage and opens the aviation fire extinguisher bottle to perform a pressure release test.

[0121] The pressure release test system and method for the aviation fire extinguisher bottle provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A pressure release test system for aviation fire extinguisher bottles, characterized in that: include: Lithium battery pack, igniter and reset switch; The charging interface is connected in parallel with the lithium battery pack and is used to connect the charger to replenish the lithium battery pack; An adjustable buck-boost module is electrically connected to the lithium battery pack and is used to adjust the voltage based on the electric energy provided by the lithium battery pack to obtain an adjusted voltage; A timer module is electrically connected to the adjustable buck-boost module and the reset switch; An output interface, electrically connected to the adjustable buck-boost module and the reset switch, for outputting a regulated voltage; The igniter is electrically connected to the output interface and the reset switch, and is used to power itself based on the regulated voltage when the reset switch is closed, and open the aviation fire extinguisher bottle to perform a pressure release test.

2. The pressure release test system for aviation fire extinguisher bottles according to claim 1 is characterized in that: The system further comprises: The borescope light is electrically connected to the charging interface and is used to adjust the voltage based on the electric energy provided by the lithium battery pack to obtain the adjusted voltage, and provide electric energy to the borescope light based on the adjusted voltage.

3. The pressure release test system for aviation fire extinguisher bottles according to claim 2, characterized in that: The borehole search light comprises: Round plug and adjustable buck-boost module; One end of the circular plug is electrically connected to the charging interface, and the other end of the circular plug is electrically connected to the adjustable buck-boost module.

4. The pressure release test system for aviation fire extinguisher bottles according to claim 1, characterized in that: The adjustable buck-boost module comprises: A switch management unit, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first inductor and a switch MOS tube; One end of the first resistor is electrically connected to the VIN pin of the switch management unit, and the other end of the first resistor is electrically connected to the EXT pin of the switch management unit; The VIN pin of the switch management unit is electrically connected to the charging interface, the VL pin of the switch management unit is electrically connected to the first capacitor, the FREQ pin of the switch management unit is electrically connected to the second resistor, the COMP pin of the switch management unit is electrically connected to one end of the third resistor, the other end of the third resistor is electrically connected to the second capacitor, the EXT pin of the switch management unit is electrically connected to the first resistor and the switch MOS tube respectively, the other end of the switch MOS tube is electrically connected to one end of the first inductor, the CS pin of the switch management unit is electrically connected to the other end of the first inductor, the VREF pin of the switch management unit is electrically connected to the fourth capacitor, and the FB pin of the switch management unit is electrically connected to the third capacitor.

5. The pressure release test system for aviation fire extinguisher bottles according to claim 4, characterized in that: The adjustable buck-boost module further includes: A fourth resistor is electrically connected to the CS pin of the switch management unit and the first inductor respectively.

6. The pressure release test system for aviation fire extinguisher bottles according to claim 5, characterized in that: The adjustable buck-boost module further includes: The first diode is electrically connected to the switch MOS tube and the first inductor respectively.

7. The pressure release test system for aviation fire extinguisher bottles according to claim 6, characterized in that: The adjustable buck-boost module further includes: A potentiometer is electrically connected to the first diode.

8. The pressure release test system for aviation fire extinguisher bottles according to claim 7, characterized in that: The adjustable buck-boost module further includes: The fifth resistor is electrically connected to the potentiometer and the third capacitor respectively.

9. The pressure release test system for aviation fire extinguisher bottles according to claim 8, characterized in that: The adjustable buck-boost module further includes: The fifth capacitor is electrically connected to the first diode.

10. A pressure release test method for aviation fire extinguisher bottles, characterized in that: include: The adjustable buck-boost module adjusts the voltage based on the electric energy provided by the lithium battery pack to obtain the regulated voltage; When the reset switch is closed, the igniter powers itself based on the regulated voltage and opens the aviation fire extinguisher bottle for pressure release testing.

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