Control circuit of excitation fuse, excitation fuse and electronic equipment

Abstract

The present application provides a control circuit, an excitation fuse, and an electronic device for an excitation fuse. The excitation fuse includes N excitation sources, at least one fuse, and multiple conductors; a fuse is connected between every two conductors in the multiple conductors; M excitation sources among the N excitation sources are connected to the multiple conductors to collect the current of the multiple conductors; the control circuit of the excitation fuse includes a main control module and a patrol module; the patrol module is connected to the main control module; the main control module outputs a patrol signal to the patrol module to control the patrol module to detect the N excitation sources; if a holding current is detected from the N excitation sources, it is determined that the N excitation sources are in a normal standby state; otherwise, it is determined that the N excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault. In this way, the state of the excitation source in the excitation fuse can be detected, and the fault of the excitation source can be discovered in time, thereby improving the reliability of the excitation fuse.

Description

Technical Field

[0001] The present application belongs to the technical field of emergency protection devices, and specifically relates to a control circuit of an excitation fuse, an excitation fuse, and electronic equipment. Background Art

[0002] Figure 1 This is a schematic diagram of the internal trigger circuit of an existing active and passive integrated protection excitation fuse, where 1 is the signal fuse, 2 is the conductor connected in series on both sides of the signal fuse 1, and 3 is the excitation source.

[0003] The current between the first conductor and the second conductor is collected by the excitation source 3. When the current is greater than a preset value, the excitation source 3 is triggered, thereby generating high-pressure gas to push the impact piece to cut off the conductor 2 or the signal melt 1.

[0004] However, the existing technology cannot detect whether the excitation source 3 is working properly, so the user cannot find the fault of the excitation source, which leads to the inability to cut off the loop of the protected circuit in time when abnormal current is generated, thus bringing great hidden dangers to the use of the product. Summary of the Invention

[0005] The present application provides a method for timely detecting a fault in an excitation source, thereby improving the reliability of an excitation fuse.

[0006] In a first aspect, the present application provides a control circuit for an excitation fuse, which is applied to the excitation fuse, wherein the excitation fuse includes N excitation sources, at least one fuse, and multiple conductor segments; a fuse is connected between every two conductor segments in the multiple conductor segments; M excitation sources among the N excitation sources are connected to the multiple conductor segments to collect currents in the multiple conductor segments; wherein N ≥ 1, M ≥ 1;

[0007] The control circuit of the excitation fuse includes a main control module and a patrol module; the patrol module is connected to the main control module; the main control module outputs a patrol signal to the patrol module to control the patrol module to detect the N excitation sources; if a holding current is detected from the N excitation sources, it is determined that the N excitation sources are in a normal standby state; if no holding current is detected in the N excitation sources, it is determined that the N excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

[0008] In combination with the first aspect, in a possible embodiment, the inspection module includes a switching unit, which is connected to the main control module; when the main control module is powered on, the inspection signal is output to the switching unit, so that the switching unit connects the loop between K of the N excitation sources and the main control module, so that the switching unit collects current from the K excitation sources and outputs it to the main control module; wherein K≤N; when the main control module detects the holding current from the K excitation sources, it is determined that the K excitation sources are in a normal standby state; when the main control module does not detect the holding current in the K excitation sources, it is determined that the K excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

[0009] In combination with the first aspect, in a possible embodiment, the control circuit of the excitation fuse also includes an internal trigger unit, a first end of the internal trigger unit is connected to the multi-segment conductor through the switching unit, and a second end of the internal trigger unit is directly connected to the multi-segment conductor; when the main control module detects the holding current from the K excitation sources, it sends a first switching signal to the switching unit to control the switching unit to disconnect the loop between the K excitation sources and the main control module, and connect the loop between the K excitation sources and the internal trigger unit; when the internal trigger unit detects the presence of an abnormal current on the multi-segment conductor, it generates a trigger current based on the abnormal current, and outputs the trigger current to the K excitation sources through the switching unit, and triggers the K excitation sources through the trigger current to cut off the loop between the fuse and the multi-segment conductor.

[0010] In combination with the first aspect, in a possible embodiment, the main control module is connected to X excitation sources out of the N excitation sources; when the main control module is powered on, current is collected from the X excitation sources; wherein X≤N; if a holding current is detected from the X excitation sources, it is determined that the X excitation sources are in a normal standby state; if a holding current is not detected from the X excitation sources, it is determined that a fault has occurred in the X excitation sources, and a prompt message is output to prompt a user to troubleshoot the fault.

[0011] In combination with the first aspect, in a possible embodiment, the control circuit of the excitation fuse also includes an internal trigger unit, the inspection module includes an isolation detection unit, the isolation detection unit is isolated and connected to the internal trigger unit, the main control module is connected to the isolation detection unit, and the internal trigger unit is also connected to the Y excitation sources; wherein, Y≤N; when the main control module is powered on, a first control signal is sent to the isolation detection unit to control the isolation detection unit to collect the current in the internal trigger unit; if the holding current is collected in the internal trigger unit, it is determined that the Y excitation sources are in a normal standby state; if the holding current is not detected in the Y excitation sources, it is determined that the Y excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

[0012] In combination with the first aspect, in a possible embodiment, the main control module further performs the following operations: when an abnormal current is detected on the multi-segment conductor, determining P second excitation sources among the Q first excitation sources among the N excitation sources; the first excitation source refers to an excitation source in a passive trigger mode among the N excitation sources, and the second excitation source refers to an excitation source in a standby state among the Q first excitation sources; determining T fourth excitation sources among the R third excitation sources among the N excitation sources; the third excitation source refers to an excitation source in an active trigger mode among the N excitation sources, The fourth excitation source refers to the excitation source in the R third excitation sources that is in standby state; if P>0, a fifth excitation source is determined from the P second excitation sources, and a second control signal is sent to the fifth excitation source to control the triggering of the fifth excitation source to cut off the loop between the melt and the multi-segment conductor; if P=0 and T>0, a sixth excitation source is determined from the T fourth excitation sources, and a third control signal is sent to the sixth excitation source to control the triggering of the sixth excitation source to cut off the loop between the melt and the multi-segment conductor.

[0013] In combination with the first aspect, in a possible embodiment, the main control module further performs the following operations: if the indication signal is received, a second switching signal is output to the switching unit to control the switching unit to cut off the loop between the internal trigger unit and the K excitation sources, and to connect the loop between the K excitation sources and the main control module.

[0014] In a second aspect, the present application provides an excitation fuse, which is applied to a protected circuit. The excitation fuse includes a control circuit of the excitation fuse as described in the first aspect.

[0015] In combination with the second aspect, in a possible embodiment, the multi-segment conductor includes a first segment conductor, a second segment conductor and a third segment conductor, and the at least one fuse includes a first fuse and a second fuse; the first segment conductor and the second segment conductor are connected to the first fuse, and the second segment conductor and the third segment conductor are connected to the second fuse; a first shell is provided on the second fuse, and two ends of the second fuse extend from the first shell and are respectively connected to the second segment conductor and the third segment conductor; the first shell is filled with an arc extinguishing medium, and the arc extinguishing medium is coated on the second fuse.

[0016] In a third aspect, the present application provides an electronic device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps of the main control module in the first aspect or the second aspect of the present application.

[0017] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program enables a computer to execute some or all of the steps described in the main control module in the first or second aspect of the present application.

[0018] In a fifth aspect, the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to execute some or all of the steps described in the main control module in the first or second aspects of the present application. The computer program product may be a software installation package.

[0019] It can be seen that in the present application, the excitation fuse includes N excitation sources, an impact device, at least one fuse and multiple conductors; a fuse is connected between every two conductors in the multiple conductors; M excitation sources among the N excitation sources are connected to the multiple conductors to collect the current of the multiple conductors; wherein, N≥1, M≥1; the control circuit of the excitation fuse includes a main control module and a patrol module; the patrol module is connected to the main control module; the main control module outputs a patrol signal to the patrol module to control the patrol module to detect the N excitation sources; if a holding current is detected from the N excitation sources, it is determined that the N excitation sources are in a normal standby state; if a holding current is not detected in the N excitation sources, it is determined that the N excitation sources are faulty, and a prompt message is output to prompt the user to troubleshoot the problem. In this way, the status of the excitation source in the excitation fuse can be detected, and the fault of the excitation source can be discovered in time, thereby improving the reliability of the excitation fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a schematic diagram of the internal trigger circuit of the existing active and passive integrated protection excitation fuse;

[0022] Figure 2 This is a structural diagram of an excitation fuse provided in an embodiment of the present application;

[0023] Figure 3 1 is a schematic structural diagram of an excitation fuse structure side provided in an embodiment of the present application;

[0024] Figure 4 1 is a schematic diagram of the circuit structure of a control circuit of a first excitation fuse provided in an embodiment of the present application;

[0025] Figure 5 1 is a circuit structure diagram of a control circuit of a second excitation fuse provided in an embodiment of the present application;

[0026] Figure 6 1 is a schematic diagram of the circuit structure of a control circuit of a third excitation fuse provided in an embodiment of the present application;

[0027] Figure 7 This is a schematic structural diagram of the first embodiment of the present application, which includes at least one melt and multiple conductor segments;

[0028] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present application, which includes at least one melt and multiple conductor segments;

[0029] Figure 9 This is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, system, product, or apparatus.

[0032] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] Currently, existing technologies cannot detect whether the excitation source is working properly, making it impossible for users to discover faults in the excitation source. This leads to the inability to promptly cut off the loop of the protected circuit when abnormal current is generated, thus bringing great hidden dangers to the use of the product.

[0034] To solve the above problems, an embodiment of the present application provides a control circuit for an excitation fuse. The control circuit for the excitation fuse can be applied to the scenario of excitation source detection of the excitation fuse. The excitation fuse includes N excitation sources, an impact device, at least one fuse and multiple conductors; a fuse is connected between every two conductors in the multiple conductors; M excitation sources among the N excitation sources are connected to the first conductor and the second conductor to collect the current of the first conductor and the second conductor; wherein N≥1, M≥1; the control circuit of the excitation fuse includes a main control module and a patrol module; the patrol module is connected to the main control module; the main control module outputs a patrol signal to the patrol module to control the patrol module to detect the N excitation sources; if a holding current is detected from the N excitation sources, it is determined that the N excitation sources are in a normal standby state; if a holding current is not detected in the N excitation sources, it is determined that the N excitation sources are faulty, and a prompt message is output to prompt the user to troubleshoot the problem. In this way, the status of the excitation source in the excitation fuse can be detected, and the fault of the excitation source can be discovered in time, thereby improving the reliability of the excitation fuse. This solution can be applied to a variety of scenarios, including but not limited to the application scenarios mentioned above.

[0035] The specific methods are introduced in detail below.

[0036] See also Figure 2 、 Figure 3 、 Figure 7 and Figure 8 The present application provides an excitation fuse for use in a protected circuit. The excitation fuse includes an excitation fuse structure side 200 and an excitation fuse control circuit 100. The excitation fuse structure side 200 includes N excitation sources, an impact device 30, at least one fuse and multiple conductor segments; a fuse is connected between every two conductor segments in the multiple conductor segments.

[0037] As Figure 3 The following describes a multi-segment conductor using a three-segment conductor as an example. The three-segment conductor includes a first conductor segment 11, a second conductor segment 12, and a third conductor segment 13. The at least one melt includes a first melt M1 and a second melt M2. The first melt M1 can be connected between the first conductor segment 11 and the second conductor segment 12, and the second melt M2 can be connected between the second conductor segment 12 and the third conductor segment 13. A first disconnection weak point 111 can be provided at the connection between the second melt M2 and the second conductor segment 12, and a second disconnection weak point 112 can be provided at the connection between the second melt M2 and the third conductor segment 13.

[0038] N is a positive integer greater than 0, that is, N=[1,2,······N]. Figure 3 As shown, N=1 is used as an example, meaning there is only one excitation source. Specifically, the impact device 30 and the excitation source (denoted as the target excitation source) are located in the same sealed chamber. The impact device 30 is located below the excitation source, directly facing the first and second disconnection weak points 111, 112. When the excitation source is triggered, high-pressure gas is generated, pushing the impact device 30 toward the first and second disconnection weak points 111, 112, thereby breaking the first and second disconnection weak points 111, 112 and severing the protected circuit.

[0039] In one possible embodiment, please refer to Figure 3 、 Figure 7 and Figure 8When the fuse is connected between the first conductor segment 11 and the second conductor segment 12, a flat plate fuse can also be installed between the second conductor segment 12 and the third conductor segment 13. The flat plate fuse includes a first housing 113 and a second fuse element M2. The second fuse element M2 is installed within the first housing 113, and its two ends extend from the first housing 113 and connect to the second conductor segment 12 and the third conductor segment 13, respectively. A first disconnection weak point 111 can be provided at the connection between the second fuse element M2 and the second conductor segment 12, and a second disconnection weak point 112 can be provided at the connection between the second fuse element M2 and the third conductor segment 13. Furthermore, the first housing 113 is filled with an arc-extinguishing medium, which coats the second fuse element M2 to enhance the product's breaking capacity. Optionally, the conductor extending from the outside serves as a terminal and is connected to the conductors on both sides by bolting or welding. Other connection methods are also possible, such as an integrated connection or a mortise and tenon joint, which are not intended to be exclusive here.

[0040] In one possible embodiment, please also refer to Figure 2-Figure 6 The excitation fuse includes a control circuit 100 of the excitation fuse, and the control circuit 100 of the excitation fuse is applied to the excitation fuse, and M excitation sources among the N excitation sources are connected to the first conductor and the second conductor to collect the current of the first conductor and the second conductor; wherein, N≥1, M≥1; the control circuit 100 of the excitation fuse includes a main control module 50 and a patrol module 60; the patrol module 60 is connected to the main control module 50; the main control module 50 outputs a patrol signal to the patrol module 60 to control the patrol module 60 to detect the N excitation sources; if a holding current is detected from the N excitation sources, it is determined that the N excitation sources are in a normal standby state; if no holding current is detected in the N excitation sources, it is determined that the N excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

[0041] In a specific implementation, a main control module 50 and a patrol module 60 are provided in the excitation fuse. When the protected circuit is activated and the main control module 50 is powered on, the main control module 50 sends a patrol signal to the patrol module 60, which enables and collects the current of the corresponding excitation source. If the holding current can be collected, it indicates that the excitation source has been properly powered on and can be determined to be in a normal standby state. If the holding current cannot be collected, it is determined that the corresponding excitation source has failed, and a prompt message is output to prompt the user to troubleshoot the problem. Optionally, the prompt message can include one or more of text, voice, video, and pictures.

[0042] It is understandable that the main control module 50 can be a controller or processor that comes with the protected circuit, or it can be an additional controller or processor that only controls the excitation fuse; the specific form of the main control module 50 is not limited, and it can also be other circuits.

[0043] The control circuit 100 for exciting a fuse is explained below through different examples.

[0044] Example 1

[0045] In one possible embodiment, see Figure 4-Figure 6 The inspection module 60 includes a switching unit, which is connected to the main control module 50; when the main control module 50 is powered on, the inspection signal is output to the switching unit, so that the switching unit connects the circuit between K excitation sources among the N excitation sources and the main control module 50, so that the switching unit collects current from the K excitation sources and outputs it to the main control module 50; wherein K≤N; when the main control module 50 detects the holding current from the K excitation sources, it is determined that the K excitation sources are in a normal standby state; when the main control module 50 does not detect the holding current in the K excitation sources, it is determined that the K excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

[0046] In a specific implementation, the inspection module 60 may include a switching unit, which may be a relay J1, a combination switch, or a switch unit composed of multiple switches, or other forms, which are not limited to any unique form.

[0047] The present embodiment will be described below using the relay J1 as an example.

[0048] It is understandable that the number of relays J1 may be consistent with or inconsistent with the number of excitation sources. For example, one relay J1 corresponds to one excitation source, or one relay J1 corresponds to multiple excitation sources, which is not limited here.

[0049] For example, a one-to-one correspondence between an excitation source and relay J1 is used. Specifically, the switching unit includes N relays J1, i.e., the number of relays J1 matches the number of excitation sources. When N = 1, the switching unit includes one relay J1, and the excitation fuse includes one excitation source (denoted as target excitation source 20). Optionally, target excitation source 20 can be an IG tube or other type of device, and is not limited to a single source.

[0050] The switching unit also includes a first diode D1. A first pin 1 of the relay J1 is connected to the first control terminal of the main control module 50 and the output terminal of the first diode D1. A second pin 2 of the relay J1 is connected to the second control terminal of the main control module 50 and the input terminal of the first diode D1. This enables the main control module 50 to control the control side. A third pin 3 of the relay J1 is connected to the first conductor 11. A fourth pin 4 of the relay J1 is connected to the second conductor 12 after a resistor unit (including a first resistor R1 and a second resistor R2) and a diode unit (including a second diode D2 and a third diode D3) are connected in series. A fifth pin 5 of the relay J1 is connected to the first terminal of the target excitation source 20. A sixth pin 6 of the relay J1 is connected to the second terminal of the target excitation source 20. A seventh pin 7 of the relay J1 is connected to the first detection terminal of the main control module 50. An eighth pin 8 of the relay J1 is connected to the second detection terminal of the main control module 50.

[0051] When the protected circuit is started, the main control module 50 can be powered on. After the main control module 50 is powered on, it outputs a patrol signal to the first pin 1 and the second pin 2 of the relay J1, so that the magnet of the relay J1 is energized and the circuit between the target excitation source 20 and the main control module 50 is connected, so that the relay J1 collects current from the target excitation source 20 and transmits it to the main control module 50. When the main control module 50 obtains the holding current collected from the target excitation source 20 by the relay J1, it determines that the target excitation source 20 is in a normal standby state; when the main control module 50 does not obtain the holding current from the relay J1, it determines that the target excitation source 20 has a fault, and outputs a prompt message to prompt the user to troubleshoot the fault.

[0052] Specifically, the control circuit 100 of the excitation fuse also includes an internal trigger unit 40, a first end of the internal trigger unit 40 is connected to the multi-segment conductor through the switching unit, and a second end of the internal trigger unit 40 is directly connected to the multi-segment conductor; when the main control module 50 detects the holding current from the K excitation sources, it sends a first switching signal to the switching unit to control the switching unit to disconnect the loop between the K excitation sources and the main control module 50, and connect the loop between the K excitation sources and the internal trigger unit 40; when the internal trigger unit 40 detects the presence of an abnormal current on the multi-segment conductor, it generates a trigger current based on the abnormal current, and outputs the trigger current to the K excitation sources through the switching unit, and triggers the K excitation sources through the trigger current to cut off the loop between the fuse and the multi-segment conductor.

[0053] The internal trigger unit 40 includes a first resistor R1, a second resistor R2, a second diode D2, a third diode D3 and a flow resistor R", a first end of the first resistor R1, a first end of the second resistor R2 and a first end of the flow resistor R" are all connected to the fourth pin 4, a second end of the first resistor R1 and a second end of the second resistor R2 are both connected to the first end of the second diode D2 and the first end of the third diode D3, and a second end of the second diode D2, a second end of the third diode D3 and a second end of the flow resistor R" are all connected to the second conductor 12.

[0054] In the specific implementation, let's continue with the example of an excitation source and a relay J1. The internal trigger unit 40 is connected to both sides of the first melt M1 via a pair of contacts of relay J1 (e.g., the third pin 3 and the fourth pin 4 of relay J1), forming a parallel relationship with the first melt M1. The internal trigger unit 40 is connected in series with the target excitation source 20 via relay J1. Because the resistance of the target excitation source 20 in the internal trigger unit 40 is in the ohm range, much greater than the resistance of the first melt M1, under normal operating conditions, the voltage across the signal melt is lower than the turn-on voltage of the voltage-controlled drive circuit. Only mA-level current will flow through the target excitation source 20 via the through-resistor R". The internal resistance of the target excitation source 20 is denoted as Rig and is typically between 1.7Ω and 2.3Ω. Combined with the current-limiting effect of the through-resistor R", the current flowing through the target excitation source 20 is adjusted to a safe current range, while maintaining current flow (i.e., maintaining current). In this way, on the one hand, this current can be used to preheat the gunpowder in the target excitation source 20 without causing malfunction and aging of the target excitation source 20; because the gas pressure generated by the same equivalent amount of gunpowder in the target excitation source 20 when it explodes at a higher temperature is greater than the gas pressure generated when it explodes at a lower temperature, in order to ensure that the target excitation source 20 can quickly break the first disconnection weak point 111 and the second disconnection weak point 112 on the second segment conductor 12 and the third segment conductor 13, it is crucial to obtain sufficient gas pressure to drive the impact device 30 to operate.

[0055] It is understandable that the user can also actively choose whether to turn on the relay J1 and use the main control module 50 to inspect the status of the target excitation source 20 to ensure that it can work normally, which is not limited here.

[0056] The working state of the target excitation source 20 when connected to the internal trigger unit 40 is divided into the following two aspects:

[0057] 1) When normal current flows through the first melt M1, the voltage drop generated at both ends of the first melt M1 is not enough to make the second diode D2 and the third diode D3 conduct and are in the cut-off state. The through-resistor R", the internal resistance Rig of the target excitation source 20 and the first melt M1 are connected in parallel, and the through-resistor R" is in a normal working state with low resistance. The resistance value of the through-resistor R" and the internal resistance Rig of the target excitation source 20 are more than dozens of times the resistance value of the first melt M1. Through melt design and selection of a suitable through-resistor R", the current flowing through the target excitation source 20 can only provide a preheating function for the target excitation source 20, but will not detonate the target excitation source 20.

[0058] 2) When an abnormal current flows through multiple conductor segments, the current flowing through the through-resistor R” and the target excitation source 20 increases, the resistance value of the through-resistor R” increases rapidly and enters a melting state, and the current flowing through the target excitation source 20 through the through-resistor R” decreases to 0; as the voltage drop across the first fuse M1 continues to increase, the second diode D2 or the third diode D3 enters a conducting state, and the target excitation source 20 and the first resistor R1 / second resistor R2, second diode D2 / third diode D3 are connected in series and in parallel with the first fuse M1, and current flows through the target excitation source 20. When the current size and time flowing through the target excitation source 20 meet its ignition conditions, the high-pressure gas generated by the explosion of the target excitation source 20 performs work to cut off the multiple conductor segments, thereby realizing the disconnection function.

[0059] Optionally, the through-resistor R″ in the internal trigger unit 40 can be replaced by a fuse. The fuse can be a chip fuse, or other devices that can achieve the same or corresponding functions, and no unique limitation is made here.

[0060] The second melt M2, second conductor segment 12, and third conductor segment 13 can be made from a single piece of metal by thinning and then punching a portion of the second and third conductor segments 12, 13. This reduces manufacturing complexity and saves costs. Furthermore, arc-extinguishing silicone can be applied to both sides of the thinned second and third conductor segments 12, 13 to extinguish the arc generated by the first melt M1 after it has melted. The cross-sectional areas of the first melt M1 and the second melt M2 are different, and the cross-sectional area of the first melt M1 connected in parallel with the internal trigger unit 40 is smaller than the cross-sectional area of the second melt M2 integrally formed with the second segment conductor 12 and the third segment conductor 13. In this way, when a small multiple abnormal current occurs, the first melt M1 connected in parallel with the internal trigger unit 40 first undergoes fuse protection, and triggers the target excitation source 20 to operate and cut off the first disconnection weak point and the second disconnection weak point 112 on both sides of the second melt M2 located directly below the impact device 30, thereby disconnecting the circuit; when a high multiple abnormal current occurs, the first melt M1 and the second melt M2 undergo fuse protection at the same time, quickly widening the insulation distance and improving the product's safe breaking capability. After the target excitation source 20 operates, it cuts off the incompletely disconnected second melt M2 located directly below the impact device 30, and quickly completes the protection action.

[0061] It can be seen that in this embodiment, by adding a switching unit and a main control module 50 to the excitation fuse, the inspection function of the excitation source in its circuit is realized, the status of the excitation source in the excitation fuse can be detected, and the fault of the excitation source can be discovered in time, thereby improving the reliability of the excitation fuse.

[0062] Example 2

[0063] In one possible embodiment, see Figure 4-Figure 6 , the main control module 50 is connected to X excitation sources among the N excitation sources; when the main control module 50 is powered on, current is collected from the X excitation sources; wherein X≤N; if a holding current is detected from the X excitation sources, it is determined that the X excitation sources are in a normal standby state; if a holding current is not detected from the X excitation sources, it is determined that the X excitation sources have a fault, and a prompt message is output to prompt a user to troubleshoot the fault.

[0064] In a specific implementation, compared with the first embodiment, at least two excitation sources are provided in this embodiment, that is, N≥2. Figure 5This embodiment is introduced by taking the two excitation sources in as an example. The two excitation sources include a first target excitation source 21 and a second target excitation source 22. The first target excitation source 21 is one of the X excitation sources, and the second target excitation source 22 is one of the Y excitation sources. At this time, the internal trigger unit 40 of the second target excitation source 22 obtains the abnormal current between the second segment conductor 12 and the third segment conductor 13 for triggering; the first target excitation source 21 is triggered by the fourth control signal sent by the main control module 50. In this way, both active and passive triggering modes can be realized, so that even if one of the triggering modes in the excitation fuse fails, it can be triggered by the other triggering mode, thereby improving the reliability of the excitation fuse. If a holding current is detected from the X excitation sources, it is determined that the X excitation sources are in a normal standby state; if a holding current is not detected in the X excitation sources, it is determined that the X excitation sources have failed, and a prompt message is output to prompt the user to troubleshoot the problem.

[0065] Specifically, the control circuit 100 of the excitation fuse also includes an internal trigger unit 40, the inspection module 60 includes an isolation detection unit 41, the isolation detection unit 41 is isolated and connected to the internal trigger unit 40, the main control module 50 is connected to the isolation detection unit 41, and the internal trigger unit 40 is also connected to the Y excitation sources; wherein, Y≤N; when the main control module 50 is powered on, a first control signal is sent to the isolation detection unit 41 to control the isolation detection unit 41 to collect the current in the internal trigger unit 40; if the holding current is collected in the internal trigger unit 40, it is determined that the Y excitation sources are in a normal standby state; if the holding current is not detected in the Y excitation sources, it is determined that the Y excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

[0066] For further information, please refer to Figure 5, an isolation detection unit 41 is set, through which the current of the internal trigger unit 40 or the second target excitation source 22 is isolated and detected, so that it can be determined whether the second target excitation source 22 connected in series with the internal trigger unit 40 is normally and reliably connected in the circuit. If the isolation detection unit 41 can detect the holding current from the internal trigger unit 40 or the second target excitation source 22, it is determined that the second target excitation source 22 is in a normal standby state; if the isolation detection unit 41 cannot detect the holding current from the internal trigger unit 40 or the second target excitation source 22, it is determined that the second target excitation source 22 has a fault. Optionally, the isolation detection unit 41 includes one of an isolated electronic switching switch and a Hall current sensor, or other types of isolation detection devices, which are not limited here. The isolation detection unit 41 is connected to the main control module 50, and the main control module 50 can selectively connect the second target excitation source 22 to the external patrol signal or to the internal trigger circuit through this isolation detection unit 41.

[0067] It can be seen that in this embodiment, active control and passive triggering can be used to detonate at least two excitation sources respectively. At the same time, based on the inspection module 60, at least two excitation sources can be inspected in different ways to determine whether the status of at least two excitation sources is normal, thereby improving the reliability of the excitation fuse.

[0068] Example 3

[0069] In one possible embodiment, see Figure 4-Figure 6 The main control module 50 further performs the following operations: when an abnormal current is detected on the multi-segment conductor, determining P second excitation sources from the Q first excitation sources among the N excitation sources; the first excitation source refers to an excitation source in a passive trigger mode among the N excitation sources, and the second excitation source refers to an excitation source in a standby state among the Q first excitation sources; determining T fourth excitation sources from the R third excitation sources among the N excitation sources; the third excitation source refers to an excitation source in an active trigger mode among the N excitation sources, and the fourth excitation source refers to an excitation source in a standby state among the R third excitation sources; if P>0, determining a fifth excitation source from the P second excitation sources, and sending a second control signal to the fifth excitation source to control the triggering of the fifth excitation source to cut off the loop between the melt and the multi-segment conductor; if P=0 and T>0, determining a sixth excitation source from the T fourth excitation sources, and sending a third control signal to the sixth excitation source to control the triggering of the sixth excitation source to cut off the loop between the melt and the multi-segment conductor.

[0070] In a specific implementation, after detecting the status of N excitation sources, the main control module 50 can assign a corresponding control strategy to each excitation source. Specifically, each excitation source can be assigned a corresponding label. If the excitation source is passively triggered, a first label is assigned; if the excitation source is actively triggered, a second label is assigned. After detecting each excitation source, the P second excitation sources in passive trigger mode and the T fourth excitation sources in active trigger mode are assigned a third label to indicate that these first and fourth excitation sources are in standby mode, that is, marking these excitation sources as being able to operate normally. Faulty excitation sources are assigned a fourth label for identification.

[0071] When the internal trigger circuit or the inspection module 60 detects an abnormal current, the label of each excitation source is directly obtained, and then the corresponding control strategy is executed according to the label.

[0072] Specifically, for every combination of the first label and the third label, the value of P increases by 1. For every combination of the second label and the third label, the value of T increases by 1. After traversing the labels of each stimulus source, the final values of P and T are obtained.

[0073] If P > 0, meaning the number of excitation sources in passive trigger mode and functioning normally is greater than 0, then there is an excitation source capable of being passively triggered to detonate the corresponding excitation source, thereby severing the electrical loop of the protected circuit. The main control module 50 then determines a fifth excitation source from the P second excitation sources and sends a second control signal to the fifth excitation source to control its triggering, thereby severing the loop between the fuse and the multiple conductor segments.

[0074] If P=0 and T>0, it indicates that there is no excitation source in passive trigger mode and functioning normally, but there is an excitation source in active trigger mode and functioning normally. The main control module 50 then determines a sixth excitation source from the T fourth excitation sources and sends a third control signal to the sixth excitation source to control triggering of the sixth excitation source, thereby severing the loop between the melt and the multi-segment conductor.

[0075] It can be seen that in this embodiment, corresponding control can be performed based on the state of each excitation source, thereby further improving the reliability of the excitation fuse.

[0076] In a possible embodiment, the main control module 50 further performs the following operations: if the indication signal is received, a second switching signal is output to the switching unit to control the switching unit to cut off the loop between the internal trigger unit 40 and the K excitation sources, and to connect the loop between the K excitation sources and the main control module 50.

[0077] In a specific implementation, in certain circumstances, when the user does not require the passive triggering function of the excitation source, an instruction signal can be input to the main control module 50. The input method can be any form and is not limited here. When the main control module 50 receives the instruction signal, it can send a second switching signal to the switching unit to disable the internal triggering function and only enable the external triggering function. This prevents the excitation source in the passive triggering mode from automatically triggering.

[0078] In one possible embodiment, when the main control module 50 detects that an abnormal current is triggering the excitation source in the internal trigger unit 40 through the isolation detection unit 41, the main control module 50 may also send a control signal to the excitation source in the active trigger mode to achieve active + passive synchronous triggering, thereby avoiding the problem of missed triggering caused by a failure of one of the triggering modes.

[0079] In one possible embodiment, Figure 6 As shown, the internal trigger unit 40 is connected to the end of the first conductor and the second conductor away from the first melt to increase the voltage in the internal trigger unit 40 circuit, thereby appropriately increasing the current in the internal trigger unit 40, increasing the preheating effect of the excitation source in the internal trigger unit, and thereby increasing the gas pressure generated when the gunpowder explodes.

[0080] The present application also provides another electronic device, including a control circuit or an excitation fuse for the excitation fuse described in the above embodiment of the present application. The electronic device also includes the protected circuit described in the above embodiment of the present application, and the protected circuit is protected by the excitation fuse.

[0081] The above mainly introduces the solution of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that, in order to realize the above functions, the mobile electronic device includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment provided in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0082] The embodiment of the present application can divide the functional units of the electronic device according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0083] The above embodiments can be implemented in whole or in part via software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When loaded or executed on a computer, the processes or functions described in accordance with the embodiments of this application are fully or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server or data center that contains a collection of one or more available media. The available medium can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media. The semiconductor media can be a solid-state drive.

[0084] This application also provides another electronic device 80, such as Figure 9 As shown, it includes at least one processor 81; a display screen 82; and a memory 83. It may also include a communications interface 85 and a bus 84. The processor 81, display screen 82, memory 83, and communications interface 85 can communicate with each other via bus 84. Display screen 82 is configured to display a preset user guidance interface in the initial setup mode. Communications interface 85 can transmit information. Processor 81 can invoke logic instructions in memory 83 to execute the method described in the above embodiment.

[0085] Optionally, the electronic device 80 may be a mobile electronic device, or an electronic device or other device, which is not limited here.

[0086] In addition, the logic instructions in the memory 83 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0087] The memory 83, as a computer-readable storage medium, can be configured to store software programs or computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 81 executes the software programs, instructions, or modules stored in the memory 83 to execute functional applications and data processing, thereby implementing the methods in the above embodiments.

[0088] The memory 83 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and applications required for at least one function; the data storage area may store data created according to the use of the electronic device 80, etc. In addition, the memory 83 may include a high-speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, may also be a transient storage medium. An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables the computer to execute part or all of the steps of any method described in the above method embodiment, and the above computer includes an electronic device.

[0089] The present application also provides a computer program product comprising a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the computer may comprise an electronic device.

[0090] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0091] In the several embodiments provided in this application, it should be understood that the disclosed methods, devices, and systems can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the units is merely a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical, or other forms.

[0092] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0093] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may be physically included separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0094] The above-mentioned integrated unit implemented as a software functional unit can be stored in a computer-readable storage medium. The software functional unit is stored in a storage medium and includes instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to perform some of the steps of the method described in various embodiments of the present invention. The aforementioned storage medium includes a USB flash drive, a mobile hard drive, a magnetic disk, an optical disk, a volatile memory, or a non-volatile memory. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). Various media can store program code.

[0095] Although the present invention is disclosed above, it is not limited thereto. Any person skilled in the art may readily conceive of variations or substitutions, and may make various modifications and alterations without departing from the spirit and scope of the present invention. Combinations of the above-described functions and implementation steps, including software and hardware implementations, are all within the scope of protection of the present invention.

Claims

1. A control circuit for an excitation fuse, characterized in that: Applied to an excitation fuse, the excitation fuse comprises N excitation sources, at least one fuse, and multiple conductor segments; a fuse is connected between every two conductor segments in the multiple conductor segments; M excitation sources among the N excitation sources are connected to the multiple conductor segments to collect currents in the multiple conductor segments; wherein N ≥ 1, M ≥ 1; The control circuit of the excitation fuse includes a main control module and a patrol module; the patrol module is connected to the main control module; the main control module outputs a patrol signal to the patrol module to control the patrol module to detect the N excitation sources; if a holding current is detected from the N excitation sources, it is determined that the N excitation sources are in a normal standby state; if no holding current is detected in the N excitation sources, it is determined that the N excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

2. The control circuit of the excitation fuse according to claim 1, characterized in that: The inspection module includes a switching unit, and the switching unit is connected to the main control module; When the main control module is powered on, the inspection signal is output to the switching unit, so that the switching unit connects K excitation sources among the N excitation sources and the circuit of the main control module, so that the switching unit collects current from the K excitation sources and outputs it to the main control module; wherein K≤N; When the main control module detects the holding current from the K excitation sources, it is determined that the K excitation sources are in a normal standby state; when the main control module does not detect the holding current in the K excitation sources, it is determined that the K excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

3. The control circuit of the excitation fuse according to claim 2, characterized in that: The control circuit of the excitation fuse further comprises an internal trigger unit, a first end of the internal trigger unit is connected to the multi-segment conductor via the switching unit, and a second end of the internal trigger unit is directly connected to the multi-segment conductor; When the main control module detects the holding current from the K excitation sources, it sends a first switching signal to the switching unit to control the switching unit to disconnect the circuits between the K excitation sources and the main control module and connect the circuits between the K excitation sources and the internal trigger unit; When the internal trigger unit detects the presence of an abnormal current on the multi-segment conductor, a trigger current is generated based on the abnormal current, and the trigger current is output to the K excitation sources through the switching unit. The K excitation sources are triggered by the trigger current to cut off the circuit between the fuse and the multi-segment conductor.

4. The control circuit of the excitation fuse according to claim 1, characterized in that: The main control module is connected to X excitation sources among the N excitation sources; when the main control module is powered on, current is collected from the X excitation sources; wherein X≤N; If a holding current is detected from the X excitation sources, it is determined that the X excitation sources are in a normal standby state; if no holding current is detected from the X excitation sources, it is determined that the X excitation sources are faulty, and a prompt message is output to prompt a user to troubleshoot the fault.

5. The control circuit of the excitation fuse according to claim 4, characterized in that: The control circuit of the excitation fuse further includes an internal trigger unit, the inspection module includes an isolation detection unit, the isolation detection unit is isolated and connected to the internal trigger unit, the main control module is connected to the isolation detection unit, and the internal trigger unit is further connected to Y excitation sources; wherein Y≤N; When the main control module is powered on, a first control signal is sent to the isolation detection unit to control the isolation detection unit to collect the current in the internal trigger unit; if the holding current is collected in the internal trigger unit, it is determined that the Y excitation sources are in a normal standby state; if the holding current is not detected in the Y excitation sources, it is determined that the Y excitation sources have a fault, and a prompt message is output to prompt the user to troubleshoot the fault.

6. The control circuit of the excitation fuse according to any one of claims 1 to 5, characterized in that: The main control module also performs the following operations: When abnormal current is detected on the multi-segment conductor, P second excitation sources among the Q first excitation sources among the N excitation sources are determined; the first excitation sources refer to excitation sources in a passive trigger mode among the N excitation sources, and the second excitation sources refer to excitation sources in a standby state among the Q first excitation sources; Determining T fourth excitation sources among the R third excitation sources among the N excitation sources; the third excitation sources refer to excitation sources in active trigger mode among the N excitation sources, and the fourth excitation sources refer to excitation sources in standby mode among the R third excitation sources; If P>0, determining a fifth excitation source from the P second excitation sources, and sending a second control signal to the fifth excitation source to control the triggering of the fifth excitation source to cut off the loop between the melt and the multiple conductor segments; If P=0 and T>0, a sixth excitation source is determined from the T fourth excitation sources, and a third control signal is sent to the sixth excitation source to control triggering of the sixth excitation source to cut off the loop between the melt and the multi-segment conductor.

7. The control circuit of the excitation fuse according to claim 3, characterized in that: The main control module also performs the following operations: If the instruction signal is received, a second switching signal is output to the switching unit to control the switching unit to cut off the circuit between the internal trigger unit and the K excitation sources, and to connect the circuit between the K excitation sources and the main control module.

8. An excitation fuse, characterized in that: Applied to a protected circuit, the excitation fuse includes a control circuit for the excitation fuse according to any one of claims 1 to 7.

9. The excitation fuse according to claim 8, characterized in that The multi-segment conductor includes a first segment conductor, a second segment conductor, and a third segment conductor, and the at least one fuse includes a first fuse and a second fuse; the first segment conductor and the second segment conductor are connected to the first fuse, and the second segment conductor and the third segment conductor are connected to the second fuse; The second fuse is sleeved with a first shell, and two ends of the second fuse extend from the first shell and are respectively connected to the second conductor segment and the third conductor segment; The first shell is filled with an arc-extinguishing medium, and the arc-extinguishing medium is coated on the second melt.

10. An electronic device, characterized in that: A control circuit comprising the excitation fuse according to any one of claims 1 to 7; or, comprising the excitation fuse according to claim 8 or 9; the excitation fuse is used to protect the electronic equipment.

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