A cluster charging system for capacitor discharge ignition units of explosive devices

Abstract

The utility model relates to the technical field of pyrotechnics, and in particular to a cluster charging system for capacitor discharge ignition units of pyrotechnics. The cluster charging system for capacitor discharge ignition units includes a charging bus (L+, L‑), and a plurality of groups of capacitor discharge ignition units connected in parallel to the charging bus; the charging circuit of the capacitor discharge ignition unit is composed of a DC boost module, a charging current limiting resistor, and an ignition capacitor; the DC boost module boosts the voltage of the charging bus to the charging voltage of the ignition capacitor; the charging current limiting resistor is used to suppress the charging current of the ignition capacitor; the cluster charging system for capacitor discharge ignition units is a bus-type architecture. The cluster charging system for capacitor discharge ignition units of pyrotechnics provided by the utility model is small in size, light in weight, simple in wiring, simple in maintenance, and the system charging bus current is smooth, which improves the stability and reliability of the system and prevents equipment damage or failure due to excessive charging current.

Description

Technical Field

[0001] The utility model belongs to the technical field of pyrotechnics, and particularly relates to a cluster charging system for capacitor discharge ignition units of pyrotechnics. Background Art

[0002] Initiators are devices that can produce combustion, explosion or physical changes under the action of certain external energy to complete specific functions. In various weapon systems, aerospace vehicles and other equipment that require the use of initiators, the performance of initiators directly affects the safety and reliability of the system. Among them, the ignition unit is an important component of initiators. It ignites the initiator by releasing a large current to achieve the ignition function.

[0003] The physical properties of pyrotechnics determine that a large ignition current and instantaneous power are required to ignite the pyrotechnics. Currently, independent high-power DC power supplies are used to provide ignition power for the pyrotechnic ignition units of the cluster. Each pyrotechnic ignition unit has an independent power supply cable, the overall device wiring is complex, and the system volume and weight are too large, which is not conducive to field carrying and equipment deployment.

[0004] The use of capacitor discharge ignition units can significantly reduce the size and weight of the system. The pyrotechnic capacitor discharge ignition unit heats the resistance bridge wire of the pyrotechnic by releasing the electrical energy stored in the ignition capacitor, thereby achieving the launch of the rocket-assisted aircraft. The aircraft is launched and controlled in multiple units, and the clustered combat method will be able to produce a repressive blow to the enemy. Since each aircraft must be matched with a corresponding pyrotechnic capacitor discharge ignition unit, the more aircraft clusters there are, the more pyrotechnic capacitor discharge ignition units are needed.

[0005] The capacitor discharge ignition unit of the pyrotechnic device will generate a large impact current at the moment of charging, and the charging current will decrease exponentially after the charging starts. At present, there is no feasible charging control strategy for the cluster system of the capacitor discharge ignition unit of the pyrotechnic device. Summary of the invention

[0006] The utility model provides a cluster charging system for capacitor discharge ignition units of pyrotechnics, so as to solve the problems of complex wiring, difficult maintenance and excessive volume and weight of the existing cluster charging control system for discharge ignition units of pyrotechnics.

[0007] In order to achieve the above purpose, the utility model solves the above technical problems through the following technical solutions:

[0008] A cluster charging system for capacitor discharge ignition units of explosive devices, comprising:

[0009] A plurality of capacitor discharge ignition units, each capacitor discharge ignition unit is arranged in parallel;

[0010] A charging bus, used to charge multiple groups of capacitor discharge ignition units;

[0011] The charging circuit of the capacitor discharge ignition unit is composed of a DC boost module, a charging current limiting resistor, and an ignition capacitor;

[0012] The DC boost module boosts the voltage of the charging bus to a charging voltage of the ignition capacitor;

[0013] The charging current limiting resistor is used to suppress the charging current of the ignition capacitor;

[0014] The capacitor discharge ignition unit cluster charging system is a bus type architecture.

[0015] The technical parameters of the capacitor discharge ignition units are the same.

[0016] The charging process of the ignition capacitor of each capacitor discharge ignition unit is a zero-state response. After any ignition capacitor starts charging, it is charged continuously. When the ignition capacitor voltage rises to the cut-off voltage, the charging stops.

[0017] The capacitor discharge ignition units are sequentially advanced at the same time interval to charge the ignition capacitor in succession; the ignition capacitor of the next group of capacitor discharge ignition units can be charged without waiting for the charging of the ignition capacitor of the previous group of capacitor discharge ignition units to be completed.

[0018] The charging bus current i bus (t) is:

[0019] i bus (t) = i1(t) + i2(t) + L + i n (t)

[0020] Where: i1(t) is the input current of capacitor discharge ignition unit #1, i2(t) is the input current of capacitor discharge ignition unit #2, i n (t) is the input current of capacitor discharge ignition unit #n.

[0021] The input current i1(t) of the capacitor discharge ignition unit #1 is:

[0022]

[0023] Where: u o1 is the output voltage of the DC boost module DC / DC#1 of the capacitor discharge ignition unit #1, k1 is the ratio of the output current to the input current of the DC boost module DC / DC#1 of the capacitor discharge ignition unit #1, R1 is the charging current limiting resistor of the capacitor discharge ignition unit #1, C1 is the ignition capacitor of the capacitor discharge ignition unit #1, t cut-off1is the charging cut-off time of the ignition capacitor C1, and t is the overall charging time of the system;

[0024] The input current i2(t) of the capacitor discharge ignition unit #2 is:

[0025]

[0026] Where: t m is the charging time interval of the ignition capacitor, u o2 is the output voltage of the DC boost module DC / DC#2 of the capacitor discharge ignition unit #2, k2 is the ratio of the output current to the input current of the DC boost module DC / DC#2 of the capacitor discharge ignition unit #2, R2 is the charging current limiting resistor of the capacitor discharge ignition unit #2, C2 is the ignition capacitor of the capacitor discharge ignition unit #2, t cut-off2 is the charging cut-off time of the ignition capacitor C2;

[0027] The input current i of the capacitor discharge ignition unit #n n (t) is:

[0028]

[0029] Where: u on k is the output voltage of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n, n is the ratio of the output current to the input current of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n, R n is the charging current limiting resistor of capacitor discharge ignition unit #n, C n is the ignition capacitor of capacitor discharge ignition unit #n, t cut-offn Ignition capacitor C n Charging cut-off time;

[0030] The charging bus current is a function related to the charging time interval of the ignition capacitor. By optimizing and controlling the charging time interval of the ignition capacitor, the bus current can be controlled to make the bus current smooth and shorten the overall charging time of the system.

[0031] The technical parameters of the capacitor discharge ignition units are the same, and the ignition capacitor charging cut-off time is:

[0032]

[0033] Where: u cut-off It is the charging cut-off voltage of the ignition capacitor, which is determined according to the ignition voltage of the pyrotechnic product.

[0034] The total charging time T of the initiator capacitor discharge ignition unit cluster charging system is:

[0035] T=(n-1)t m +t cut-offn

[0036] Where: n is the number of capacitor discharge ignition units, t m is the charging time interval of the ignition capacitor, t cut-offn Ignition capacitor C n The charging cut-off time is , and the capacitor discharge ignition unit #n is the last group of capacitor discharge ignition units charged.

[0037] The optimization condition of the charging control method for the ignition unit cluster of the pyrotechnic capacitor discharge is that the charging bus current does not exceed the maximum limit;

[0038] The optimization equation is:

[0039]

[0040] Where: i bus is the charging bus current, i Limit is the maximum limit of the charging bus current, i bus-max is the maximum value of the charging bus current, i bus-min is the minimum value of the charging bus current, i bus-dav is the average value of the charging bus current, t m is the charging time interval of the ignition capacitor, t cut-offn Ignition capacitor C n The charging cut-off time, γ i is the charging bus current ripple factor.

[0041] The plurality of capacitor discharge ignition units are independent of each other and are easy to expand. The expansion can be achieved by directly connecting the capacitor discharge ignition units to the charging bus.

[0042] Based on the implementation of the above technical solution, the utility model can achieve the following technical effects:

[0043] 1. The initiator capacitor discharge ignition unit cluster charging system provided by the utility model utilizes a charging bus to charge multiple groups of parallel capacitor discharge ignition units. The system has a small size, light weight, simple wiring and simple maintenance.

[0044] 2. The pyrotechnic capacitor discharge ignition unit cluster charging system provided by the utility model optimizes and controls the charging time interval of the ignition capacitor, and charges the ignition capacitor in sequence at the same time interval. There is no need to wait for the ignition capacitor of the previous group of capacitor discharge ignition units to be charged before the ignition capacitor of the next group of capacitor discharge ignition units can be charged, thereby shortening the ignition capacitor charging time and improving the aircraft launch efficiency.

[0045] 3. The pyrotechnic capacitor discharge ignition unit cluster charging system provided by the utility model has an optimized design so that the technical parameters of each capacitor discharge ignition unit are the same, thereby improving the quality of the charging bus current, smoothing the charging bus current, and improving the stability and reliability of the system.

[0046] 4. The pyrotechnic capacitor discharge ignition unit cluster charging system provided by the utility model can effectively suppress the charging current of the ignition capacitor through the reasonable design of the charging current limiting resistor, thereby preventing equipment damage or malfunction caused by excessive charging current. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 This is the cluster charging system architecture of the capacitor discharge ignition unit of the pyrotechnics provided by the utility model;

[0049] Figure 2 This is a topological structure diagram of the capacitor charging circuit of the capacitor discharge ignition unit of the pyrotechnic device provided by the utility model;

[0050] Figure 3 It is a graph of the capacitor discharge and ignition capacitor charging of the pyrotechnic device provided by the utility model.

[0051] Reference numerals

[0052] L+ is the positive of the charging bus;

[0053] L- is the negative of the charging bus;

[0054] i1 is the input current of capacitor discharge ignition unit #1;

[0055] i2 is the input current of capacitor discharge ignition unit #2;

[0056] i n is the input current of capacitor discharge ignition unit #n;

[0057] u i is the voltage of the charging bus;

[0058] DC / DC#n is the DC boost module of the capacitor discharge ignition unit #n;

[0059] u on The output voltage of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n;

[0060] i cn is the charging current of the ignition capacitor of the capacitor discharge ignition unit #n;

[0061] C n is the ignition capacitor of the capacitor discharge ignition unit #n;

[0062] R n is the charging current limiting resistor of the capacitor discharge ignition unit #n;

[0063] u cn It is the voltage across the ignition capacitor of the capacitor discharge ignition unit #n. DETAILED DESCRIPTION

[0064] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0065] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0066] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0067] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0069] Combine the following Figure 1-Figure 3 The initiator capacitor discharge ignition unit cluster charging system provided by the utility model is introduced in detail:

[0070] Combination Figure 1 As shown, in an embodiment of the utility model, the pyrotechnic capacitor discharge ignition unit cluster system includes a charging bus (L+, L-) and a plurality of capacitor discharge ignition units.

[0071] Furthermore, the capacitor discharge ignition units are arranged in parallel; and the charging bus is used to charge multiple groups of capacitor discharge ignition units.

[0072] Combination Figure 2 As shown, the capacitor discharge ignition unit charging circuit is composed of a DC boost module, a charging current limiting resistor, and an ignition capacitor.

[0073] Furthermore, the DC boost module boosts the voltage of the charging bus to a charging voltage of the ignition capacitor.

[0074] Furthermore, the charging current limiting resistor is used to suppress the charging current of the ignition capacitor.

[0075] Furthermore, the technical parameters of each capacitor discharge ignition unit are the same.

[0076] Furthermore, the pyrotechnic capacitor discharge ignition unit cluster system is a busbar-type architecture, which uses a busbar to charge multiple groups of parallel capacitor discharge ignition units.

[0077] Furthermore, each of the capacitor discharge ignition units is independent of each other and does not affect each other;

[0078] Furthermore, the charging process of the ignition capacitors of the capacitor discharge ignition units is a zero-state response, and any ignition capacitor is continuously charged after starting to charge, and the charging stops when the ignition capacitor voltage rises to the cut-off voltage.

[0079] Combination Figure 3 As shown, the capacitor discharge ignition units are sequentially advanced at the same time interval to charge the ignition capacitors in a staggered manner; the ignition capacitors of the next group of capacitor discharge ignition units can be charged without waiting for the ignition capacitors of the previous group of capacitor discharge ignition units to be charged; that is, at time 0, the capacitor discharge ignition unit #1 is driven to charge the ignition capacitor C1 to which it belongs, and at t m At time (n-1)t, the capacitor discharge ignition unit #2 is driven to charge the ignition capacitor C2. m The moment driving capacitor discharge ignition unit #n is the corresponding ignition capacitor C n Charging, n is the serial number of the capacitor discharge ignition unit.

[0080] Furthermore, the charging bus current i bus (t) is:

[0081] i bus (t) = i1(t) + i2(t) + L + i n (t)

[0082] Where: i1(t) is the input current of capacitor discharge ignition unit #1, i2(t) is the input current of capacitor discharge ignition unit #2, i n (t) is the input current of capacitor discharge ignition unit #n;

[0083] Furthermore, the input current i1(t) of the capacitor discharge ignition unit #1 is:

[0084]

[0085] Where: u o1 is the output voltage of the DC boost module DC / DC#1 of the capacitor discharge ignition unit #1, k1 is the ratio of the output current to the input current of the DC boost module DC / DC#1 of the capacitor discharge ignition unit #1, R1 is the charging current limiting resistor of the capacitor discharge ignition unit #1, C1 is the ignition capacitor of the capacitor discharge ignition unit #1, t cut-off1 is the charging cut-off time of the ignition capacitor C1, and t is the overall charging time of the system;

[0086] Furthermore, the input current i2(t) of the capacitor discharge ignition unit #2 is:

[0087]

[0088] Where: t m is the charging time interval of the ignition capacitor, u o2 is the output voltage of the DC boost module DC / DC#2 of the capacitor discharge ignition unit #2, k2 is the ratio of the output current to the input current of the DC boost module DC / DC#2 of the capacitor discharge ignition unit #2, R2 is the charging current limiting resistor of the capacitor discharge ignition unit #2, C2 is the ignition capacitor of the capacitor discharge ignition unit #2, t cut-off2 is the charging cut-off time of the ignition capacitor C2;

[0089] Furthermore, the input current i of the capacitor discharge ignition unit #n is n (t) is:

[0090]

[0091] Where: u on k is the output voltage of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n, n is the ratio of the output current to the input current of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n, R n is the charging current limiting resistor of capacitor discharge ignition unit #n, C n is the ignition capacitor of capacitor discharge ignition unit #n, t cut-offn Ignition capacitor C n Charging cut-off time;

[0092] Furthermore, the charging bus current is a function related to the ignition capacitor charging time interval. The bus current can be controlled by optimizing and controlling the ignition capacitor charging time interval, thereby smoothing the bus current and shortening the overall charging time of the system.

[0093] Furthermore, the technical parameters of the capacitor discharge ignition units are the same, and the ignition capacitor charging cut-off time is:

[0094]

[0095] Where: u cut-off It is the charging cut-off voltage of the ignition capacitor, which is determined according to the ignition voltage of the pyrotechnic product.

[0096] Furthermore, the overall total charging time T of the pyrotechnic capacitor discharge ignition unit cluster charging system is:

[0097] T=(n-1)tm +t cut-offn

[0098] Where: n is the number of capacitor discharge ignition units, t m is the charging time interval of the ignition capacitor, t cut-offn Ignition capacitor C n The charging cut-off time is , and the capacitor discharge ignition unit #n is the last group of capacitor discharge ignition units charged.

[0099] Furthermore, the optimization condition of the charging control method for the pyrotechnic capacitor discharge ignition unit cluster is that the charging bus current does not exceed the maximum limit.

[0100] The optimization goal is:

[0101] (1) The smaller the bus current ripple coefficient, the better. The smaller the ripple coefficient, the smoother the bus current.

[0102] (2) The shorter the system charging time, the better.

[0103] The optimization equation is:

[0104]

[0105] Where: i bus is the charging bus current, i Limit is the maximum limit of the charging bus current, i bus-max is the maximum value of the charging bus current, i bus-min is the minimum value of the charging bus current, i bus-dav is the average value of the charging bus current, t m is the charging time interval of the ignition capacitor, t cut-offn Ignition capacitor C n The charging cut-off time, γ i is the charging bus current ripple factor.

[0106] Furthermore, the capacitor discharge ignition units are independent of each other and are easy to expand, and expansion can be achieved by directly connecting the capacitor discharge ignition units to the charging bus.

[0107] A capacitor discharge ignition control system test platform was built, and the charging capacitor cutoff voltage was set to 45V, the charging bus voltage was set to 28V, the DC boost module boosted 28V to 48V, the number of clusters was 50, the current limiting resistor was 100Ω, the ignition capacitor was 22000uF, and the total charging time of the system was 43s, which verified the effectiveness of the utility model. That is, the above test platform system is small in size, light in weight, simple in wiring, and simple in maintenance; the system charging bus current is smooth, which improves the stability and reliability of the system and prevents equipment damage or failure due to excessive charging current.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A cluster charging system for capacitor discharge ignition units of explosive devices, characterized in that: include: A plurality of capacitor discharge ignition units, each capacitor discharge ignition unit is arranged in parallel; A charging bus, used to charge multiple groups of capacitor discharge ignition units; The charging circuit of the capacitor discharge ignition unit is composed of a DC boost module, a charging current limiting resistor, and an ignition capacitor; The DC boost module boosts the voltage of the charging bus to a charging voltage of the ignition capacitor; The charging current limiting resistor is used to suppress the charging current of the ignition capacitor; The capacitor discharge ignition unit cluster charging system is a bus type architecture.

2. The initiator capacitor discharge ignition unit cluster charging system according to claim 1, characterized in that: The technical parameters of the capacitor discharge ignition units are the same.

3. The initiator capacitor discharge ignition unit cluster charging system according to claim 2, characterized in that: The charging process of the ignition capacitor of each capacitor discharge ignition unit is a zero-state response. After any ignition capacitor starts charging, it is charged continuously. When the ignition capacitor voltage rises to the cut-off voltage, the charging stops.

4. The initiator capacitor discharge ignition unit cluster charging system according to claim 3, characterized in that: The capacitor discharge ignition units are sequentially advanced at the same time interval to charge the ignition capacitor in succession; the ignition capacitor of the next group of capacitor discharge ignition units can be charged without waiting for the charging of the ignition capacitor of the previous group of capacitor discharge ignition units to be completed.

5. The initiator capacitor discharge ignition unit cluster charging system according to claim 4, characterized in that: The charging bus current i of the charging system bus (t) is: i bus (t)=i1(t)+i2(t)+L+i n (t) Where: i1(t) is the input current of capacitor discharge ignition unit #1, i2(t) is the input current of capacitor discharge ignition unit #2, i n (t) is the input current of capacitor discharge ignition unit #n.

6. The initiator capacitor discharge ignition unit cluster charging system according to claim 5, characterized in that: The input current i1(t) of the capacitor discharge ignition unit #1 is: Where: u o1 is the output voltage of the DC boost module DC / DC#1 of the capacitor discharge ignition unit #1, k1 is the ratio of the output current to the input current of the DC boost module DC / DC#1 of the capacitor discharge ignition unit #1, R1 is the charging current limiting resistor of the capacitor discharge ignition unit #1, C1 is the ignition capacitor of the capacitor discharge ignition unit #1, t cut-off1 is the charging cut-off time of the ignition capacitor C1, and t is the overall charging time of the system; The input current i2(t) of the capacitor discharge ignition unit #2 is: Where: t m is the charging time interval of the ignition capacitor, u o2 is the output voltage of the DC boost module DC / DC#2 of the capacitor discharge ignition unit #2, k2 is the ratio of the output current to the input current of the DC boost module DC / DC#2 of the capacitor discharge ignition unit #2, R2 is the charging current limiting resistor of the capacitor discharge ignition unit #2, C2 is the ignition capacitor of the capacitor discharge ignition unit #2, t cut-off2 is the charging cut-off time of the ignition capacitor C2; The input current i of the capacitor discharge ignition unit #n n (t) is: Where: u on k is the output voltage of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n, n is the ratio of the output current to the input current of the DC boost module DC / DC#n of the capacitor discharge ignition unit #n, R n is the charging current limiting resistor of capacitor discharge ignition unit #n, C n is the ignition capacitor of capacitor discharge ignition unit #n, t cut-offn Ignition capacitor C n Charging cut-off time; The charging bus current is a function related to the charging time interval of the ignition capacitor. By optimizing and controlling the charging time interval of the ignition capacitor, the bus current can be controlled to make the bus current smooth and shorten the overall charging time of the system.

7. The initiator capacitor discharge ignition unit cluster charging system according to claim 6, characterized in that: The ignition capacitor charging cut-off time is: Where: u cut-off It is the charging cut-off voltage of the ignition capacitor, which is determined according to the ignition voltage of the pyrotechnic product.

8. The initiator capacitor discharge ignition unit cluster charging system according to claim 7, characterized in that: The total charging time T of the initiator capacitor discharge ignition unit cluster charging system is: T=(n-1)t m +t cut-offn Where: n is the number of capacitor discharge ignition units, t m is the charging time interval of the ignition capacitor, t cut-offn Ignition capacitor C n The charging cut-off time is , and the capacitor discharge ignition unit #n is the last group of capacitor discharge ignition units charged.

9. The initiator capacitor discharge ignition unit cluster charging system according to claim 8, characterized in that: The optimization condition of the charging control method for the ignition unit cluster of the pyrotechnic capacitor discharge is that the charging bus current does not exceed the maximum limit; The optimization equation is: Where: i bus is the charging bus current, i Limit is the maximum limit of the charging bus current, i bus-max is the maximum value of the charging bus current, i bus-min is the minimum value of the charging bus current, i bus-dav is the average value of the charging bus current, t m is the charging time interval of the ignition capacitor, t cut-offn Ignition capacitor C n The charging cut-off time, γ i is the charging bus current ripple factor.

10. The initiator capacitor discharge ignition unit cluster charging system according to claim 9, characterized in that: The plurality of capacitor discharge ignition units are independent of each other and are easy to expand. The expansion can be achieved by directly connecting the capacitor discharge ignition units to the charging bus.

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