Control circuit of excitation fuse, excitation fuse and electronic equipment

Abstract

The invention provides a control circuit of an excitation fuse, the excitation fuse and electronic equipment. The excitation fuse comprises N excitation sources, at least one melt and multiple sections of conductors, a melt is connected between every two sections of conductors in the plurality of sections of conductors; m excitation sources in the N excitation sources are connected to the multiple sections of conductors so as to collect currents of the multiple sections of conductors; the control circuit of the excitation fuse comprises a main control module and an inspection module. The inspection module is connected with the main control module; the main control module outputs an inspection signal to the inspection module so as to control the inspection module to detect the N excitation sources; if the holding current is detected from the N excitation sources, determining that the N excitation sources are in a normal standby state; and otherwise, determining that the N excitation sources have faults, and outputting prompt information to prompt a user to carry out fault removal. Therefore, the state of the excitation source in the excitation fuse can be detected, the fault of the excitation source can be found in time, and the reliability of the excitation fuse is improved.

Description

Technical Field

[0001] This application belongs to the technical field of emergency protection devices, and particularly relates to a control circuit for an excitation fuse, an excitation fuse, and an electronic device. Background Art

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

[0003] The excitation source 3 collects the current between the first conductor and the second conductor. When the current is greater than a preset value, the excitation source 3 is triggered, and then high-pressure gas is generated to push the impact member to cut off the conductor 2 or the signal fuse element 1.

[0004] However, the prior art cannot detect whether the excitation source 3 can work normally, so that the user cannot discover the failure of the excitation source, and then the loop of the protected circuit cannot be cut off in time when an abnormal current occurs, thus bringing great hidden dangers to the use of the product. Summary of the Invention

[0005] This application provides a solution to detect the failure of the excitation source in time, thereby improving the reliability of the excitation fuse.

[0006] In a first aspect, this application provides a control circuit for an excitation fuse, which is applied to an excitation fuse. The excitation fuse includes N excitation sources, at least one fuse element, and multiple segments of conductors; one fuse element is connected between every two segments of the multiple segments of conductors; M of the N excitation sources are connected to the multiple segments of conductors to collect the current of the multiple segments of conductors; where N≥1 and M≥1; The control circuit of the excitation fuse includes a main control module and an inspection module; the inspection module is connected to the main control module; the main control module outputs an inspection signal to the inspection module to control the inspection 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 have failed, and a prompt message is output to prompt the user to troubleshoot.

[0007] In combination with the first aspect, in a possible embodiment, 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, it outputs the inspection signal to the switching unit, so that the switching unit connects the circuits of 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; where 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 the 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 failed, and a prompt message is output to prompt the user to troubleshoot.

[0008] In combination with the first aspect, in a possible embodiment, the control circuit of the excitation fuse further includes an internal trigger unit, the first end of the internal trigger unit is connected to the multi-segment conductor through the switching unit, and the 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 circuit between the K excitation sources and the main control module and connect the circuit between the main control module and the internal trigger unit; when the internal trigger unit detects 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 circuit of the fuse element and the multi-segment conductor.

[0009] In combination with the first aspect, in a possible embodiment, the main control module is connected to X of the N excitation sources; when the main control module is powered on, it collects current from the X excitation sources; where X≤N; if the holding current is detected from the X excitation sources, it is determined that the X excitation sources are in the normal standby state; if the 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.

[0010] In combination with the first aspect, in a possible embodiment, 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 isolatedly 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 the Y excitation sources; where Y ≤ N; when the main control module is powered on, it sends a first control signal to the isolation detection unit to control the isolation detection unit to collect the current in the internal trigger unit; if a holding current is collected in the internal trigger unit, it is determined that the Y excitation sources are in the normal standby state; if the holding current is not detected in the Y excitation sources, it is determined that the Y excitation sources have failed, and a prompt message is output to prompt the user to troubleshoot the problem.

[0011] In combination with the first aspect, in a possible embodiment, the main control module further performs the following operations: when abnormal current is detected on the multi-segment conductor, determine P second excitation sources among Q first excitation sources among the N excitation sources; the first excitation source refers to the excitation source in the passive trigger mode among the N excitation sources, and the second excitation source refers to the excitation source in the standby state among the Q first excitation sources; determine T fourth excitation sources among R third excitation sources among the N excitation sources; the third excitation source refers to the excitation source in the active trigger mode among the N excitation sources, and the fourth excitation source refers to the excitation source in the standby state among the R third excitation sources; if P > 0, determine a fifth excitation source from the P second excitation sources, and send a second control signal to the fifth excitation source to control the fifth excitation source to trigger, so as to cut off the loop of the fuse element and the multi-segment conductor; if P = 0 and T > 0, determine a sixth excitation source from the T fourth excitation sources, and send a third control signal to the sixth excitation source to control the fifth excitation source to trigger, so as to cut off the loop of the fuse element and the multi-segment conductor.

[0012] 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, output a second switching signal 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 connect the loop between the K excitation sources and the main control module.

[0013] In the second aspect, the present application provides an excitation fuse applied to a protected circuit, and the excitation fuse includes the control circuit of the excitation fuse as described in the first aspect.

[0014] 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 element includes a first fuse element and a second fuse element; the first fuse element is connected between the first-segment conductor and the second-segment conductor, and the second fuse element is connected between the second-segment conductor and the third-segment conductor; a first housing is sleeved on the second fuse element, and two ends of the second fuse element extend out from the first housing and are respectively connected to the second-segment conductor and the third-segment conductor; an arc extinguishing medium is filled in the first housing, and the arc extinguishing medium coats the second fuse element.

[0015] In a third aspect, the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and are configured to be executed by the processor. The programs include instructions for performing the steps of the main control module in the first aspect or the second aspect of the present application.

[0016] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program for electronic data exchange. The computer program causes a computer to execute some or all of the steps described in the main control module in the first aspect or the second aspect of the present application.

[0017] In a fifth aspect, the present application provides a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program. 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 aspect or the second aspect of the present application. The computer program product can be a software installation package.

[0018] It can be seen that in the present application, the excitation fuse includes N excitation sources, an impact device, at least one fuse element, and a multi-segment conductor; a fuse element is connected between every two segments of the multi-segment conductor; M out of the N excitation sources are connected to the multi-segment conductor to collect the current of the multi-segment conductor; where N≥1 and M≥1; the control circuit of the excitation fuse includes a main control module and an inspection module; the inspection module is connected to the main control module; the main control module outputs an inspection signal to the inspection module to control the inspection 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 from the N excitation sources, it is determined that a fault has occurred in the N excitation sources, and a prompt message is output to prompt the user to troubleshoot the fault. In this way, the state of the excitation sources in the excitation fuse can be detected to timely discover the faults of the excitation sources, improving the reliability of the excitation fuse. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the internal trigger circuit of the existing active and passive integrated protection excitation fuse; Figure 2 It is a schematic diagram of the structure of an excitation fuse provided by an embodiment of the present application; Figure 3 It is a schematic diagram of the side structure of the excitation fuse structure provided by an embodiment of the present application; Figure 4 It is a schematic diagram of the circuit structure of the control circuit of the first excitation fuse provided by an embodiment of the present application; Figure 5 It is a schematic diagram of the circuit structure of the control circuit of the second excitation fuse provided by an embodiment of the present application; Figure 6 It is a schematic diagram of the circuit structure of the control circuit of the third excitation fuse provided by an embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the first at least one fuse element and multiple conductors provided by an embodiment of the present application; Figure 8 It is a schematic diagram of the structure of the second at least one fuse element and multiple conductors provided by an embodiment of the present application; Figure 9 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0022] In the description and claims of this application and the above-mentioned drawings, terms such as "first", "second", etc. are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, systems, products or devices.

[0023] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] Currently, the prior art cannot detect whether the excitation source can work properly, so that users cannot discover the faults of the excitation source, and then cannot timely cut off the loop of the protected circuit when abnormal current occurs, thus bringing great potential hazards to the use of the product.

[0025] To solve the above problems, an embodiment of this application provides a control circuit for an excitation fuse. The control circuit for the excitation fuse can be applied to the scenario of detecting the excitation source of the excitation fuse. Among them, the excitation fuse includes N excitation sources, an impact device, at least one fuse element, and multiple segments of conductors; a fuse element is connected between every two segments of the multiple segments of conductors; M of the N excitation sources are connected between a first conductor and a second conductor to collect the currents of the first conductor and the second conductor; where N≥1, M≥1; the control circuit for the excitation fuse includes a main control module and an inspection module; the inspection module is connected to the main control module; the main control module outputs an inspection signal to the inspection module to control the inspection module to detect the N excitation sources; if a holding current is detected among the N excitation sources, it is determined that the N excitation sources are in the normal standby state; if a holding current is not detected among the N excitation sources, it is determined that the N excitation sources have failed, and a prompt message is output to prompt the user to troubleshoot. In this way, the state of the excitation source in the excitation fuse can be detected to timely discover the faults of the excitation source, improving the reliability of the excitation fuse. This solution can be applied to various scenarios, including but not limited to the application scenarios mentioned above.

[0026] The following details the specific method.

[0027] Please refer to Figure 2 、 Figure 3 、 Figure 7 andFigure 8 , the present application provides an excitation fuse, which is applied to a protected circuit. The excitation fuse includes an excitation fuse structure side 200 and a control circuit 100 of the excitation fuse. The excitation fuse structure side 200 includes N excitation sources, an impact device 30, at least one fuse element, and multiple segments of conductors; one fuse element is connected between every two segments of the multiple segments of conductors.

[0028] Take, for example, Figure 3 The multiple segments of conductors are introduced by taking three segments of conductors shown as an example. The three segments of conductors include a first segment of conductor 11, a second segment of conductor 12, and a third segment of conductor 13. The at least one fuse element includes a first fuse element M1 and a second fuse element M2. The first fuse element M1 can be connected between the first segment of conductor 11 and the second segment of conductor 12, and the second fuse element M2 can be connected between the second segment of conductor 12 and the third segment of conductor 13. Among them, a first breakage weak point 111 can be set at the connection between the second fuse element M2 and the second segment of conductor 12, and a second breakage weak point 112 can be set at the connection between the second fuse element M2 and the third segment of conductor 13.

[0029] N is a positive integer greater than 0, that is, N = [1, 2,..., N]. Take, for example, Figure 3 shown, and an example with N = 1 is used for illustration, that is, there is only one excitation source. Specifically, the impact device 30 and the excitation source (denoted as the target excitation source) are in the same sealed chamber. The impact device 30 is located below the excitation source, and directly below the impact device 30 are the first breakage weak point 111 and the second breakage weak point 112. When the excitation source is triggered, high-pressure gas will be generated to push the impact device 30 to impact the first breakage weak point 111 and the second breakage weak point 112, so as to break the first breakage weak point 111 and the second breakage weak point 112, and then cut off the loop of the protected circuit.

[0030] In a possible embodiment, please continue to refer to Figure 3 , Figure 7 and Figure 8When the melt is connected between the first conductor 11 and the second conductor 12, a flat fuse can also be arranged between the second conductor 12 and the third conductor 13. The flat fuse includes a first housing 113 and a second melt M2. The second melt M2 is arranged in the first housing 113, and both ends of the second melt M2 extend out from the first housing 113 and are respectively connected to the second conductor 12 and the third conductor 13. At the same time, a first disconnection weak point 111 can be arranged at the connection between the second melt M2 and the second conductor 12, and a second disconnection weak point 112 can be arranged at the connection between the second melt M2 and the third conductor 13. In addition, an arc extinguishing medium is filled in the first housing 113, and the arc extinguishing medium covers the second melt M2 to improve the breaking capacity of the product. Optionally, the conductors extending outwards serve as terminal blocks and are connected to the conductors on both sides by means of bolts or welding, or can be connected in other ways, such as integral type, or splicing by tenon and mortise structure, etc., and no unique limitation is made here.

[0031] In a possible embodiment, please refer to Figures 2 - 6 , the excitation fuse includes a control circuit 100 of the excitation fuse. The control circuit 100 of the excitation fuse is applied to the excitation fuse. M of the N excitation sources are connected between the first conductor and the second conductor to collect the currents of the first conductor and the second conductor; where N≥1, M≥1; the control circuit 100 of the excitation fuse includes a main control module 50 and a patrol inspection module 60; the patrol inspection module 60 is connected to the main control module 50; the main control module 50 outputs a patrol inspection signal to the patrol inspection module 60 to control the patrol inspection 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 a holding current is not detected from the N excitation sources, it is determined that the N excitation sources have failed, and a prompt message is output to prompt the user to troubleshoot.

[0032] In specific implementation, a main control module 50 and a patrol inspection module 60 are arranged in the excitation fuse. When the protected circuit is started and the main control module 50 is powered on, the main control module 50 will send a patrol inspection signal to the patrol inspection module 60, so that the patrol inspection module 60 is enabled and collects the current of the corresponding excitation source; if a holding current can be collected, it means that the excitation source has been normally powered on, and it can be determined that the corresponding excitation source is in a normal standby state; if a 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. Optionally, the prompt message can include one or more of text, voice, video, and picture.

[0033] It can be understood that the main control module 50 can be a controller or a processor built in the protected circuit, or a controller or a processor additionally added 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.

[0034] The control circuit 100 of the excitation fuse will be explained below through different examples.

[0035] Embodiment 1 In a possible embodiment, please refer to Figures 4 - 6 , the inspection module 60 includes a switching unit, and the switching unit is connected to the main control module 50; when the main control module 50 is powered on, it outputs the inspection signal to the switching unit, so that the switching unit connects the circuits of K of 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; where 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 the 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 failed, and a prompt message is output to prompt the user to troubleshoot.

[0036] In specific implementation, the inspection module 60 can include a switching unit, and the switching unit can be a relay J1, a combination switch, or a switch unit composed of multiple switches, or other forms, and is not uniquely limited here.

[0037] The present embodiment will be described below by taking the relay J1 as an example.

[0038] It can be understood that the number of relays J1 can also be the same as or different from the number of excitation sources. For example, one relay J1 corresponds to one excitation source, or one relay J1 can also correspond to multiple excitation sources, which is not limited here.

[0039] Taking the case where the excitation source corresponds to the relay J1 one by one as an example for explanation. Specifically, the switching unit includes N relays J1, that is, the number of relays J1 is the same as 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 the target excitation source 20). Optionally, the target excitation source 20 can be an IG tube or other types of devices, and is not uniquely limited here.

[0040] The switching unit further includes a first diode D1. The first pin 1 of the relay J1 is connected to the first control end of the main control module 50 and the output end of the first diode D1, and the second pin 2 of the relay J1 is connected to the second control end of the main control module 50 and the input end of the first diode D1. In this way, the main control module 50 can control the control side. The third pin 3 of the relay J1 is connected to the first section of conductor 11, and the fourth pin 4 of the relay J1 is connected to the second section of conductor 12 after sequentially connecting 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). The fifth pin 5 of the relay J1 is connected to the first end of the target excitation source 20, the sixth pin 6 of the relay J1 is connected to the second end of the target excitation source 20, the seventh pin 7 is connected to the first detection end of the main control module 50, and the eighth pin 8 is connected to the second detection end of the main control module 50.

[0041] When the protected circuit is started, power can be supplied to the main control module 50. After the main control module 50 is powered on, it outputs an inspection 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 transmitted by the relay J1, it determines that the target excitation source 20 is in the 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.

[0042] Specifically, the control circuit 100 of the excitation fuse further includes an internal trigger unit 40. The first end of the internal trigger unit 40 is connected to the multi-section conductor through the switching unit, and the second end of the internal trigger unit 40 is directly connected to the multi-section 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 circuit between the K excitation sources and the main control module 50 and connect the circuit between the main control module 50 and the internal trigger unit 40. When the internal trigger unit 40 detects an abnormal current on the multi-section 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 to trigger the K excitation sources to cut off the circuit of the fuse element and the multi-section conductor.

[0043] Among them, the internal trigger unit 40 includes a first resistor R1, a second resistor R2, a second diode D2, a third diode D3, and a current-carrying resistor R". The first ends of the first resistor R1, the second resistor R2, and the current-carrying resistor R" are all connected to the fourth pin 4. The second ends of the first resistor R1 and the second resistor R2 are both connected to the first ends of the second diode D2 and the third diode D3. The second ends of the second diode D2, the third diode D3, and the current-carrying resistor R" are all connected to the second-section conductor 12.

[0044] In specific implementation, continue to take the above-mentioned one excitation source and one relay J1 as an example. The internal trigger unit 40 is connected to both sides of the first fuse M1 through a pair of contacts of the relay J1 (such as the third pin 3 and the fourth pin 4 of the relay J1), forming a parallel relationship with the first fuse M1. The internal trigger unit 40 is connected in series with the target excitation source 20 through the relay J1. Since the resistance value of the target excitation source 20 in the internal trigger unit 40 is at the ohm level, which is much larger than the resistance value of the first fuse M1. In the normal working state, the voltage across the signal fuse is lower than the conduction voltage of the voltage-controlled drive circuit, and only a current of mA level flows through the target excitation source 20 through the current-carrying resistor R". The internal resistance of the target excitation source 20 is denoted as Rig, which is usually between 1.7Ω and 2.3Ω. Coupled with the current-limiting effect of the current-carrying resistor R", the current flowing through the target excitation source 20 is adjusted to the safe current range, but there is always current flowing through (i.e., maintaining the 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 misoperation and aging of the target excitation source 20; because the gas pressure generated when the gunpowder of the same equivalent in the target excitation source 20 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 break weak point 111 and the second break weak point 112 on the second-section conductor 12 and the third-section conductor 13, it is crucial to obtain sufficient gas pressure to push the impact device 30 to act.

[0045] It can be understood that the user can also actively choose whether to turn on the relay J1, and use the main control module 50 to inspect the state of the target excitation source 20 to ensure that it can work normally, which is not limited here.

[0046] The working state of the target excitation source 20 when it is connected to the internal trigger unit 40 is divided into the following two aspects: 1) When a normal current flows through the first fuse M1, the voltage drop generated across the first fuse M1 is not sufficient to turn on the second diode D2 and the third diode D3, and they are in the cut-off state. The current-carrying resistor R", the internal resistance Rig of the target excitation source 20, and the first fuse M1 are in parallel. The current-carrying resistor R" is in the normal operating state with low resistance. The resistance value of the current-carrying resistor R" and the internal resistance Rig of the target excitation source 20 are dozens of times or more the resistance value of the first fuse M1. By designing the fuse and selecting an appropriate current-carrying 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.

[0047] 2) When an abnormal current flows through the multi-segment conductor, the current flowing through the current-carrying resistor R" and the target excitation source 20 increases. The resistance value of the current-carrying resistor R" rapidly increases and enters the fusing state, and the current flowing through the target excitation source 20 through the current-carrying resistor R" decreases to 0. As the voltage drop across the first fuse M1 continuously increases, the second diode D2 or the third diode D3 enters the conducting state. The target excitation source 20, the first resistor R1 / second resistor R2, and the second diode D2 / third diode D3 are connected in series and then in parallel with the first fuse M1, and the current flows through the target excitation source 20. When the magnitude and duration of the current flowing through the target excitation source 20 meet its detonation conditions, the high-pressure gas generated by the detonation of the target excitation source 20 does work to cut off the multi-segment conductor, thereby achieving the breaking function.

[0048] Optionally, the current-carrying resistor R" in the internal trigger unit 40 can be replaced by a fuse. The fuse can be a surface mount fuse or other devices that can achieve the same or corresponding functions, and no uniqueness limitation is made here.

[0049] The second melt M2, the second conductor segment 12, and the third conductor segment 13 can be obtained by thinning a part of the material of the second conductor segment 12 and the third conductor segment 13 and then punching holes in a whole piece of metal, reducing the process difficulty and saving costs. Additionally, arc-extinguishing silica gel can be coated on both sides of the thinned positions of the second conductor segment 12 and the third conductor segment 13 to extinguish the arc generated after the first melt M1 melts. 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 conductor segment 12 and the third conductor segment 13. In this way, when a small multiple of abnormal current occurs, the first melt M1 connected in parallel with the internal trigger unit 40 melts first for protection and triggers the target excitation source 20 to act to cut off the first break weakness and the second break weakness 112 on both sides of the second melt M2 directly below the impact device 30, thus disconnecting the circuit; when a high multiple of abnormal current occurs, the first melt M1 and the second melt M2 melt for protection simultaneously, quickly pulling apart the insulation distance, improving the safe breaking capacity of the product, and after the target excitation source 20 acts, cutting off the incompletely disconnected second melt M2 directly below the impact device 30 to quickly complete the protection action.

[0050] 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 loop is realized, the state of the excitation source in the excitation fuse can be detected, the faults of the excitation source can be found in time, and the reliability of the excitation fuse is improved.

[0051] Embodiment 2 In a possible embodiment, please refer to Figures 4 - 6 , the main control module 50 is connected to X of the N excitation sources; when the main control module 50 is powered on, current acquisition is performed on the X excitation sources; where 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 the user to troubleshoot the fault.

[0052] In specific implementation, compared with Embodiment 1, at least two excitation sources are provided in this embodiment, that is, N ≥ 2. For example Figure 5Taking the two excitation sources in [Example] as an example, this embodiment will be introduced. Among them, 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 in the second target excitation source 22 obtains the abnormal current between the second conductor 12 and the third conductor 13 for triggering; the first target excitation source 21 is triggered by the main control module 50 sending a fourth control signal. In this way, two triggering methods, active and passive, can be realized, so that even if one of the triggering methods fails in the excitation fuse, it can be triggered by the other triggering method, improving the reliability of the excitation fuse. If a holding current is detected among the X excitation sources, it is determined that the X excitation sources are in the normal standby state; if no holding current is detected among 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.

[0053] Specifically, the control circuit 100 of the excitation fuse further includes an internal trigger unit 40. The inspection module 60 includes an isolation detection unit 41. The isolation detection unit 41 is isolatedly connected to the internal trigger unit 40. The main control module 50 is connected to the isolation detection unit 41. The internal trigger unit 40 is also connected to the Y excitation sources; where Y ≤ N. When the main control module 50 is powered on, it sends a first control signal to the isolation detection unit 41 to control the isolation detection unit 41 to collect the current in the internal trigger unit 40. If a holding current is collected in the internal trigger unit 40, it is determined that the Y excitation sources are in the normal standby state; if no holding current is detected among the Y excitation sources, it is determined that the Y excitation sources have failed, and a prompt message is output to prompt the user to troubleshoot the problem.

[0054] Further, please continue to refer to Figure 5, an isolation detection unit 41 is provided. The isolation detection unit 41 isolates and detects the current of the internal trigger unit 40 or the second target excitation source 22, so as to determine 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 the normal standby state; if the isolation detection unit 41 fails to 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 isolation type electronic switch and a Hall current sensor, or can also be other types of isolation detection devices, and no unique limitation is made 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 inspection signal or to the internal trigger circuit through this isolation detection unit 41.

[0055] It can be seen that in this embodiment, at least two excitation sources can be detonated by using two methods of active control and passive triggering respectively, and at the same time, the at least two excitation sources can be inspected in different ways based on the inspection module 60 to determine whether the states of the at least two excitation sources are normal, improving the reliability of the excitation fuse.

[0056] Embodiment 3 In a possible embodiment, please refer to Figures 4 - 6 , the main control module 50 also performs the following operations: when abnormal current is detected on the multi-segment conductor, determine P second excitation sources among Q first excitation sources among the N excitation sources; the first excitation source refers to the excitation source in the passive trigger mode among the N excitation sources, and the second excitation source refers to the excitation source in the standby state among the Q first excitation sources; determine T fourth excitation sources among R third excitation sources among the N excitation sources; the third excitation source refers to the excitation source in the active trigger mode among the N excitation sources, and the fourth excitation source refers to the excitation source in the standby state among the R third excitation sources; if P>0, determine a fifth excitation source from the P second excitation sources, and send a second control signal to the fifth excitation source to control the fifth excitation source to trigger, so as to cut off the loop of the fuse element and the multi-segment conductor; if P = 0 and T>0, determine a sixth excitation source from the T fourth excitation sources, and send a third control signal to the sixth excitation source to control the fifth excitation source to trigger, so as to cut off the loop of the fuse element and the multi-segment conductor.

[0057] In a specific implementation, after the main control module 50 detects the states of N excitation sources, corresponding control strategies can be assigned to each excitation source. Specifically, each excitation source can be assigned a corresponding label. If the excitation source is triggered passively, a first label is assigned; if the excitation source is triggered actively, a second label is assigned. After the detection of each excitation source is completed, for P second excitation sources in the passive trigger mode and T fourth excitation sources in the active trigger mode, a third label is assigned to indicate that these first excitation sources and fourth excitation sources are in the standby state, that is, these excitation sources are marked as excitation sources that can work normally; while the faulty excitation sources are identified by assigning a fourth label.

[0058] When the internal trigger circuit or the inspection module 60 detects abnormal current, the labels of each excitation source are directly obtained, and then the corresponding control strategies are executed according to the labels.

[0059] Specifically, for each combination of the first label and the third label, the value of P is incremented by 1. For each combination of the second label and the third label, the value of T is incremented by 1. After traversing the labels of each excitation source, the final values of P and T are obtained.

[0060] If P > 0, that is, the number of excitation sources in the passive trigger mode and capable of normal operation is greater than 0, there are excitation sources that can detonate the corresponding excitation source in a passive trigger form to cut off the electrical circuit of the protected circuit. Furthermore, the main control module 50 determines a fifth excitation source from the P second excitation sources and sends a second control signal to the fifth excitation source to control the fifth excitation source to trigger, so as to cut off the circuit of the fuse element and the multi-segment conductors.

[0061] If P = 0 and T > 0, it means that there are no excitation sources in the passive trigger mode and capable of normal operation, but there are excitation sources in the active trigger mode and capable of normal operation. Furthermore, the main control module 50 determines a sixth excitation source from the T fourth excitation sources and sends a third control signal to the sixth excitation source to control the fifth excitation source to trigger, so as to cut off the circuit of the fuse element and the multi-segment conductors.

[0062] It can be seen that in this embodiment, corresponding control can be performed based on the state of each excitation source, further improving the reliability of the excitation fuse.

[0063] In a possible embodiment, the main control module 50 also 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 circuit between the internal trigger unit 40 and the K excitation sources and connect the circuit between the K excitation sources and the main control module 50.

[0064] In specific implementation, in some cases, when the user does not need the passive trigger function of the excitation source, an indication signal can be input to the main control module 50, and the input method can be in any form, which is not limited herein. When the main control module 50 receives the indication signal, the main control module 50 can send a second switching signal to the switching unit to shield the internal trigger function and only provide the external trigger function, so as to avoid the automatic triggering of the excitation source in the passive trigger mode.

[0065] In a 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 can also send a control signal to the excitation source in the active trigger mode to achieve synchronous triggering of active + passive, and avoid the missed triggering problem caused by the failure of one of the triggering methods.

[0066] In a possible embodiment, as Figure 6 shown, the internal trigger unit 40 is connected to the ends of the first conductor and the second conductor far from the first fuse to increase the voltage in the loop of the internal trigger unit 40, so as to appropriately increase the current magnitude in the internal trigger unit 40, increase the preheating effect of the excitation source in the internal trigger unit, and further increase the gas pressure generated when the gunpowder explodes.

[0067] The embodiment of the present application also provides another electronic device, including the control circuit or the excitation fuse of 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.

[0068] 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 can be understood that in order for the mobile electronic device to implement the above functions, it includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments 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 certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0069] Embodiments of the present application can divide functional units of an electronic device according to the above method examples. For example, each functional unit can be divided corresponding 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 a software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, only a logical functional division, and there can be other division methods in actual implementation.

[0070] The above embodiments can be implemented in whole or in part by 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 includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium can be any available medium that the computer can access or a data storage device such as a server or data center that contains one or more collections of available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, or magnetic tape), an optical medium (such as a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0071] The present application also provides another electronic device 80, as Figure 9 shown, which includes at least one processor 81; a display screen 82; and a memory 83, and may further include a communication interface 85 and a bus 84. Among them, the processor 81, the display screen 82, the memory 83, and the communication interface 85 can communicate with each other through the bus 84. The display screen 82 is set to display a user guidance interface preset in the initial setting mode. The communication interface 85 can transmit information. The processor 81 can call the logical instructions in the memory 83 to execute the methods in the above embodiments.

[0072] Optionally, the electronic device 80 can be a mobile electronic device, or an electronic device or other device, and no unique limitation is made here.

[0073] In addition, when the logical instructions in the above-mentioned memory 83 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0074] As a computer-readable storage medium, the memory 83 can be set to store software programs and computer-executable programs, such as the program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 81 executes functional applications and data processing by running the software programs, instructions or modules stored in the memory 83, that is, implements the methods in the above embodiments.

[0075] The memory 83 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs 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 high-speed random access memory and may also include non-volatile memory. For example, various media that can store program codes such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks or optical discs can also be transient storage media. Embodiments of the present application also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute some or all of the steps of any of the methods described in the method embodiments above. The above computer includes an electronic device.

[0076] Embodiments of the present application also provide a computer program product. The above computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the above computer program is operable to enable a computer to execute some or all of the steps of any of the methods described in the method embodiments above. The computer program product may be a software installation package, and the above computer includes an electronic device.

[0077] It should be understood that in various embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0078] In several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of the units is only a logical function division, and there can be other division methods in actual implementation; for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces, and the indirect coupling or communication connection of the apparatuses or units can be in electrical, mechanical, or other forms.

[0079] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0080] In addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, or each unit can be physically included separately, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0081] The integrated unit implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: USB flash drive, mobile hard disk, magnetic disk, optical disc, volatile memory or non-volatile memory. Among them, the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). And other various media that can store program codes.

[0082] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions without departing from the spirit and scope of the present invention, and can make various changes and modifications, including combinations of the above different functions and implementation steps, including software and hardware implementation manners, all within the protection scope of the present invention.

Claims

1. A control circuit for an excitation fuse, characterized in that, Applied to an excitation fuse, the excitation fuse includes N excitation sources, at least one fuse element, and multiple segments of conductors; between every two segments of conductors among the multiple segments of conductors, a fuse element is connected; M of the N excitation sources are connected to the multiple segments of conductors to collect the current of the multiple segments of conductors; where N≥1 and M≥1; The control circuit of the excitation fuse includes a main control module and an inspection module; the inspection module is connected to the main control module; the main control module outputs an inspection signal to the inspection module to control the inspection 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 the normal standby state; if a holding current is not 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, it outputs the inspection signal to the switching unit, so that the switching unit connects the circuits of K of the N excitation sources and the main control module, so that the switching unit collects the current from the K excitation sources and outputs it to the main control module; where 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 the 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 includes an internal trigger unit. The first end of the internal trigger unit is connected to the multiple segments of conductors through the switching unit, and the second end of the internal trigger unit is directly connected to the multiple segments of conductors; 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 main control module and the internal trigger unit; When the internal trigger unit detects an abnormal current on the multiple segments of conductors, 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 circuits of the fuse element and the multiple segments of conductors.

4. The control circuit of the excitation fuse according to claim 1, characterized in that, The main control module is connected to X of the N excitation sources; when the main control module is powered on, it collects the current of the X excitation sources; where X≤N; If a holding current is detected from the X excitation sources, it is determined that the X excitation sources are in the normal standby state; if a holding current is not detected in the X excitation sources, it is determined that the X excitation sources have a fault, and a prompt message is output to prompt the 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 isolatedly connected to the internal trigger unit. The main control module is connected to the isolation detection unit. The internal trigger unit is further connected to Y excitation sources; where Y ≤ N; When the main control module is powered on, it sends a first control signal to the isolation detection unit to control the isolation detection unit to collect the current in the internal trigger unit. If a holding current is collected in the internal trigger unit, it is determined that the Y excitation sources are in the normal standby state. If the holding current is not detected in the Y excitation sources, it is determined that the Y excitation sources have failed, 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 1-5, characterized in that, The main control module also performs the following operations: When abnormal current is detected on the multi-segment conductors, determine P second excitation sources among Q first excitation sources among the N excitation sources. The first excitation source refers to the excitation source in the passive trigger mode among the N excitation sources, and the second excitation source refers to the excitation source in the standby state among the Q first excitation sources; Determine T fourth excitation sources among R third excitation sources among the N excitation sources. The third excitation source refers to the excitation source in the active trigger mode among the N excitation sources, and the fourth excitation source refers to the excitation source in the standby state among the R third excitation sources; If P > 0, determine a fifth excitation source from the P second excitation sources, and send a second control signal to the fifth excitation source to control the fifth excitation source to trigger, so as to cut off the loop of the fuse element and the multi-segment conductors; If P = 0 and T > 0, determine a sixth excitation source from the T fourth excitation sources, and send a third control signal to the sixth excitation source to control the fifth excitation source to trigger, so as to cut off the loop of the fuse element and the multi-segment conductors.

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 an indication signal is received, output a second switching signal 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 connect the loop between the K excitation sources and the main control module.

8. An excitation fuse, characterized in that, Applied to the protected circuit, the excitation fuse includes the control circuit of the excitation fuse according to any one of claims 1-6.

9. The excitation fuse according to claim 8, wherein The multi-segment conductors include a first segment conductor, a second segment conductor, and a third segment conductor. The at least one fuse element includes a first fuse element and a second fuse element. The first fuse element is connected between the first segment conductor and the second segment conductor, and the second fuse element is connected between the second segment conductor and the third segment conductor; A first housing is sleeved on the second fuse element, and both ends of the second fuse element extend out of the first housing and are respectively connected to the second segment conductor and the third segment conductor; The first housing is filled with an arc extinguishing medium, and the arc extinguishing medium covers the second fuse element.

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

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