Fusing detection circuit, fusing excitation circuit and electric shock equipment

Abstract

The utility model provides a fusing detection circuit, a fusing excitation circuit and electric shock equipment. The fusing detection circuit is applied to the electric shock equipment and comprises a first switch module, a second switch module and a fuse detection module, wherein the other end of the fuse is coupled with a first voltage source; the first driving module is coupled to the control end of the first switch module; the control module is coupled with the first driving module and the second end of the first switch module and is used for sending a first control signal to the first driving module, controlling the first driving module to output a first driving signal to control the first switch module to be switched on, receiving a first voltage signal and carrying out fusing detection and gunpowder ignition detection according to the first voltage signal; wherein the first driving signal controls the conduction time to be shorter than the time required by gunpowder ignition. Through the above mode, the driving module is used for conducting the first switch module for a short time, and fusing detection and ignition detection are completed by using the first voltage signal on the premise that gunpowder is not ignited.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of power supply, in particular to a fuse detection circuit, a fuse triggering circuit and an electric shock device. BACKGROUND

[0002] The electric shock gun is a non-lethal weapon that shoots electrodes at a target and then paralyzes the target through a large current. The electric shock gun shoots electrodes mainly by igniting gunpowder to produce a large amount of gas instantaneously, and the electrodes are triggered by increasing the pressure. Currently, the gunpowder is ignited mainly by heating the fuse to ignite the gunpowder. Usually, the electric shock gun needs to be detected before use to ensure the normal operation of the device, to comply with relevant laws and regulations, to reduce the risk of misuse, and to maintain public safety.

[0003] When the current flowing through the fuse exceeds its rated current, the fuse heats up, and if the heat cannot be dissipated in time, the fuse will melt and break when it reaches the melting point. By using this feature, gunpowder is added to the fuse, and the gunpowder ignites after absorbing the heat energy of the fuse. Since part of the heat energy of the fuse is absorbed by the gunpowder, the fuse cannot completely melt, and the internal resistance of the fuse changes little compared to the cold resistance. To determine whether the gunpowder is ignited by detecting whether the fuse is melted, the change in the internal resistance of the fuse needs to be detected. If this condition is not detected accurately, it will affect the reliability of the product. CONTENT OF THE INVENTION

[0004] The main purpose of the present application is to provide a fuse detection circuit, a fuse triggering circuit and an electric shock device to solve the problem that in the electric shock device, the internal gunpowder absorbs part of the energy of the fuse during the melting process, so that the fuse cannot completely melt, and the gunpowder cannot be determined whether it is ignited by simply detecting whether the fuse is melted. By improving the detection accuracy of the fuse, the reliable detection of the circuit melting is achieved, and the use reliability of the device is improved.

[0005] To solve the above problems, the present application provides a fuse detection circuit, a fuse triggering circuit and an electric shock device. The fuse detection circuit is applied to an electric shock device, and the fuse detection circuit comprises: a first switch module, a first end of the first switch module being used for coupling one end of a fuse; wherein the other end of the fuse is coupled to a first voltage source; a first drive module, the first drive module being coupled to a control end of the first switch module; a control module, the control module being coupled to the first drive module and a second end of the first switch module, and being used for sending a first control signal to the first drive module, controlling the first drive module to output a first drive signal to control the first switch module to be turned on, receiving a first voltage signal, and performing fuse melting detection and gunpowder ignition detection according to the first voltage signal; wherein the on time of the first drive signal is less than the time required for the gunpowder to ignite.

[0006] In an embodiment, the first driving module comprises: a first driving chip, a first end of the first driving chip is coupled to the second voltage source, a second end of the first driving chip is grounded, and a third end of the first driving chip is coupled to the control module; a first filter unit, a first end of the first filter unit is coupled to the third voltage source and a fourth end of the first driving chip, and a second end of the first filter unit is coupled to the second end of the first driving chip; and a first voltage dividing unit, a first end of the first voltage dividing unit is coupled to a fifth end of the first driving chip, a second end of the first voltage dividing unit is coupled to a control end of the first switch module, and a third end of the first voltage dividing unit is coupled to a second end of the first switch module.

[0007] In an embodiment, the first filter unit comprises: a first capacitor, a first end of the first capacitor is coupled to the first end of the first driving chip and the third voltage source, and a second end of the first capacitor is coupled to the second end of the first driving chip; and the first voltage dividing unit comprises: a first resistor, a first end of the first resistor is coupled to the fifth end of the first driving chip, and a second end of the first resistor is coupled to the control end of the first switch module; and a second resistor, a first end of the second resistor is coupled to the second end of the first resistor, and a second end of the second resistor is coupled to the second end of the first switch module.

[0008] In an embodiment, the fuse detection circuit further comprises: a filter module, a first end of the filter module is coupled to the second end of the first switch module, a second end of the filter module is coupled to the control module, and a third end of the filter module is grounded.

[0009] In an embodiment, the filter module comprises: a third resistor, a first end of the third resistor is coupled to the second end of the first switch module, and a second end of the third resistor is coupled to the control module; and a second capacitor, a first end of the second capacitor is coupled to the second end of the third resistor, and a second end of the second capacitor is grounded.

[0010] In an embodiment, the fuse detection circuit further comprises:

[0011] a comparison module, the comparison module is coupled to the second end of the first switch module and the control module, configured to receive the first voltage signal and output a second voltage signal to the control module according to the first voltage signal; and the control module is configured to receive the second voltage signal and perform fuse detection and powder ignition detection according to the second voltage signal.

[0012] In an embodiment, the comparison module comprises: a comparison unit, a first end of the comparison unit is grounded; a second filter unit, a first end of the second filter unit is coupled to a second end of the comparison unit, a second end of the second filter unit is coupled to the control module for outputting a second voltage signal to the control module, a third end of the second filter unit is grounded; a third filter unit, a first end of the third filter unit is coupled to a second end of the first switch module, a second end of the third filter unit is coupled to a third end of the comparison unit, a third end of the third filter unit is grounded; a fourth filter unit, a first end of the fourth filter unit is coupled to a fourth end of the comparison unit, a second end of the fourth filter unit is coupled to the control module, a third end of the fourth filter unit is grounded; a fifth filter unit, a first end of the fifth filter unit is coupled to a fifth end of the comparison unit and a fourth voltage source, a second end of the fifth filter unit is grounded, a third end of the fifth filter unit is coupled to the control module; a pull-up unit, a first end of the pull-up unit is coupled to the fourth voltage source, a second end of the pull-up unit is coupled to the second end of the comparison unit.

[0013] In an embodiment, the second filter unit comprises: a fourth resistor, a first end of the fourth resistor is coupled to the second end of the comparison unit, a second end of the fourth resistor is coupled to the control module; a third capacitor, a first end of the third capacitor is coupled to the first end of the fourth resistor, a second end of the third capacitor is grounded; the third filter unit comprises: a fifth resistor, a first end of the fifth resistor is coupled to the second end of the first switch module, a second end of the fifth resistor is coupled to the third end of the comparison unit; a fourth capacitor, a first end of the fourth capacitor is coupled to the second end of the fifth resistor, a second end of the fourth capacitor is grounded; the fourth filter unit comprises: a sixth resistor, a first end of the sixth resistor is coupled to the fourth end of the comparison unit, a second end of the sixth resistor is coupled to the control module; a fifth capacitor, a first end of the fifth capacitor is coupled to the fourth end of the comparison unit, a second end of the fifth capacitor is grounded; the fifth filter unit comprises: a sixth capacitor, a first end of the sixth capacitor is coupled to the fifth end of the comparison unit and the fourth voltage source, a second end of the sixth capacitor is grounded; the pull-up unit comprises: a seventh resistor, a first end of the seventh resistor is coupled to the fourth voltage source, a second end of the seventh resistor is coupled to the second end of the comparison unit.

[0014] The application further provides an electric shock device, and the electric shock device comprises a fuse detection circuit, a second switch module, a second drive module, and a voltage division module.

[0015] The application provides an electric shock device, and the electric shock device comprises a fuse detection circuit, a fuse triggering circuit, and a fuse.

[0016] The application provides a fuse detection circuit, and the fuse detection circuit comprises a first switch module, a first drive module, and a control module. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0018] Figure 1 is a structural schematic diagram of a first embodiment of a fuse detection circuit provided by the present application;

[0019] Figure 2 is a structural schematic diagram of a first embodiment of a first driving module provided by the present application;

[0020] Figure 3 is a structural schematic diagram of a second embodiment of the first driving module provided by the present application;

[0021] Figure 4 is a structural schematic diagram of a second embodiment of the fuse detection circuit provided by the present application;

[0022] Figure 5 is a structural schematic diagram of a third embodiment of the fuse detection circuit provided by the present application;

[0023] Figure 6 is a structural schematic diagram of a first embodiment of a comparison module provided by the present application;

[0024] Figure 7 is a structural schematic diagram of a second embodiment of the comparison module provided by the present application;

[0025] Figure 8 is a structural schematic diagram of an embodiment of a fuse excitation circuit provided by the present application;

[0026] Figure 9 is a structural schematic diagram of a first embodiment of a second driving module provided by the present application;

[0027] Figure 10 is a structural schematic diagram of a second embodiment of the second driving module provided by the present application;

[0028] Figure 11 is a structural schematic diagram of an embodiment of an electric shock device provided by the present application.

[0029] Reference signs:

[0030] 100, fuse detection circuit; 200, fuse triggering circuit; 300, electric shock device; 10, first switch module; 20, first drive module; 30, control module; 21, first drive chip; 22, first filter unit; 23, first voltage division unit; 40, filter module; 50, comparison module; 51, comparison unit; 52, second filter unit; 53, third filter unit; 54, fourth filter unit; 55, fifth filter unit; 56, pull-up unit; 60, second switch module; 70, second drive module; 71, second drive chip; 72, sixth filter unit; 73, second voltage division unit; 80, voltage division module; F1, fuse; R1, first resistor; R2, second resistor; R3, third resistor; R4, fourth resistor; R5, fifth resistor; R6, sixth resistor; R7, seventh resistor; R8, eighth resistor; R9, ninth resistor; C1, first capacitor; C2, second capacitor; C3, third capacitor; C4, fourth capacitor; C5, fifth capacitor; C6, sixth capacitor. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0032] The terms "first", "second", and the like in the present application are used to distinguish different objects, but not to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units not listed or optionally includes other steps or units inherent to the process, method, product or device.

[0033] In this document, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive of 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.

[0034] Since the process of firing the electric shock gun is through the fuse in the process of fusing, the heat value accumulated continuously makes the fuse disconnected after reaching the melting point of the fuse; gunpowder is added above the fuse, and the gunpowder is ignited by using the heat accumulation characteristics of the fuse, so as to fire the electrode. Therefore, in this process, the gunpowder will absorb part of the heat value accumulated by the fuse, so that the resistance of the fuse changes little compared with the cold resistance value. As a result, the gunpowder may be ignited while the fuse is not completely fused, and the resistance change is not large, which leads to inaccurate detection, and thus it is impossible to determine whether the gunpowder has been ignited and fired. Therefore, in order to determine whether the gunpowder is ignited by detecting whether the fuse is fused, the change of the resistance of the fuse in ohm level needs to be detected. If the detection is not accurate in this case, the reliability of the product will be affected.

[0035] Therefore, the present application provides a fuse detection circuit, a fuse firing circuit and an electric shock device to solve the above problems.

[0036] Referring to Figure 1 Figure 1 is a structural schematic diagram of a first embodiment of a fuse detection circuit provided by the present application; the fuse detection circuit 100 is applied to an electric shock device 300, and specifically, the fuse detection circuit 100 comprises a first switch module 10, a first driving module 20 and a control module 30; wherein the first end of the first switch module 10 is used to couple one end of a fuse F1; the other end of the fuse F1 is coupled to a first voltage source; the first driving module 20 is coupled to the control end of the first switch module 10; the control module 30 is coupled to the first driving module 20 and the second end of the first switch module 10, and is used to send a first control signal to the first driving module 20, control the first driving module 20 to output a first driving signal to control the first switch module 10 to be turned on, receive a first voltage signal, and perform fuse detection according to the first voltage signal; wherein the on-time of the first driving signal is less than the time required for the ignition of the gunpowder. The gunpowder covers the fuse F1, and the ignition is realized through the fusing process of the fuse F1.

[0037] In the above manner, the control module 30 is used to control the driving module to realize short on-time of the switch module, and then the fuse detection is realized by taking the first voltage signal received after being turned on as the basis, so as to realize the fuse detection without fusing the fuse F1.

[0038] In an embodiment, the first switch module 10 is an N-type MOS tube. In an embodiment, the control module 30 is a microcontroller unit (MCU).

[0039] ​It can be understood that by controlling the conduction of the first switch module 10 to connect the fuse F1, but by controlling the conduction time of the first switch module 10 to control the heat of the fuse F1, and then causing the energy obtained by the fuse F1 to be too small to ignite the powder, so that the circuit is fused and detected in this period of time. Wherein, when the control module 30 receives the first voltage signal and compares it with the reference voltage, when the first voltage signal is greater than the first reference voltage, it is determined that the fuse F1 at this time is not fused, and the powder is not ignited; when the first voltage signal is less than the second reference voltage, it is determined that the fuse F1 at this time is fused, and the powder is ignited. When the first voltage signal is greater than the second reference voltage and less than the first reference voltage, it is determined that the fuse F1 at this time is not fused but the powder is ignited.

[0040] Specifically, there are other embodiments corresponding to the above-mentioned scheme, as follows:

[0041] In an embodiment, as shown in Figure 2 , Figure 2 is a structural schematic diagram of the first driving module according to the first embodiment of the present application; wherein the first driving module 20 comprises: a first driving chip 21, a first filter unit 22 and a first voltage division unit 23; the first end of the first driving chip 21 is coupled to the second voltage source, the second end and the fourth end of the first driving chip 21 are grounded, the first end of the first driving chip 21 is coupled to the second voltage source, the second end of the first driving chip 21 is grounded, and the third end of the first driving chip 21 is coupled to the control module 30; the first end of the first filter unit 22 is coupled to the third voltage source and the fourth end of the first driving chip 21, and the second end of the first filter unit 22 is coupled to the second end of the first driving chip 21; the first voltage division unit 23, the first end of the first voltage division unit 23 is coupled to the fifth end of the first driving chip 21, the second end of the first voltage division unit 23 is coupled to the control end of the first switch module 10, and the third end of the first voltage division unit 23 is coupled to the second end of the first switch module 10.

[0042] Wherein, when the control module 30 sends a PWM signal into the first driving chip 21, the control module 30 controls the first driving chip 21 to output a driving wave to control the conduction of the first switch module 10. For example, the control module 30 sends a 50us 3.3V driving wave PWM signal into the first driving chip 21, and outputs a 5V driving wave to make the first switch module 10 saturated and conductive.

[0043] As to the five ports of the first driving chip 21, the first port is a VDD port (a power supply voltage port), the second port is a GND port (representing a ground or 0 line, which is a reference point of the circuit), the third port is an IN+ port (a non-inverted input port of the driving chip), the fourth port is an IN- port (an inverted input port of the driving chip), and the fifth port is an OUT port (an output port of the driving chip, used for outputting a driving signal).

[0044] In an embodiment, as shown in Figure 3 , Figure 3 is a structural schematic diagram of a second embodiment of the first driving module provided in the present application; the first filtering unit 22 includes: a first capacitor C1, a first end of the first capacitor C1 being coupled to a first end of the first driving chip 21, and a second end of the first capacitor C1 being coupled to a second end of the first driving chip 21; the first voltage dividing unit 23 includes: a first resistor R1 and a second resistor R2; wherein a first end of the first resistor R1 is coupled to a fifth end of the first driving chip 21, and a second end of the first resistor R1 is coupled to a control end of the first switch module 10; a first end of the second resistor R2 is coupled to the second end of the first resistor R1, and a second end of the second resistor R2 is coupled to a second end of the first switch module 10.

[0045] In an embodiment, as shown in Figure 4 , Figure 4 is a structural schematic diagram of a second embodiment of the fuse detection circuit provided in the present application; the fuse detection circuit 100 further includes: a filtering module 40, a first end of the filtering module 40 being coupled to a second end of the first switch module 10, and a second end of the filtering module 40 being coupled to the control module 30.

[0046] The filtering module 40 performs filtering processing on the voltage signal output from the front end, so as to eliminate interference or noise therein, and obtain a relatively pure voltage signal.

[0047] In an embodiment, as shown in Figure 4 , the filtering module 40 includes: a third resistor R3 and a second capacitor C2; wherein a first end of the third resistor R3 is coupled to a second end of the first switch module 10, and a second end of the third resistor R3 is coupled to the control module 30; a first end of the second capacitor C2 is coupled to the second end of the third resistor R3, and a second end of the second capacitor C2 is grounded.

[0048] Wherein, the voltage signal output by the second end of the first switch module 10 is received by the filtering module 40, and is filtered by the filtering module 40 to obtain a voltage signal (i.e., the first voltage signal) into the ADC input port of the single-chip microcomputer, and the single-chip microcomputer is used to compare the reference voltage to determine the circuit fuse state and the powder ignition state at this time. The ADC (Analog-to-Digital Converter) integrated in the single-chip microcomputer is an electronic device used to convert continuous analog signals into discrete digital signals.

[0049] In another scheme, in the above embodiment scheme, the output voltage and the threshold voltage are compared and distinguished by using a separate comparison module 50 to realize the fuse detection of the circuit, and the specific scheme is as follows:

[0050] In an embodiment, as shown in Figure 5 , Figure 5 is a structural schematic diagram of a third embodiment of the fuse detection circuit provided by the present application; the fuse detection circuit 100 further comprises a comparison module 50 coupled to the second end of the first switch module 10 and the control module 30, for receiving the first voltage signal and outputting a second voltage signal to the control module 30 according to the first voltage signal; wherein the control module 30 receives the second voltage signal and performs fuse detection and powder ignition detection according to the second voltage signal.

[0051] Wherein, the fuse detection and ignition detection according to the second voltage signal are similar to the above-mentioned first voltage signal, when the control module 30 receives the second voltage signal and compares it with the reference voltage, when the second voltage signal is greater than the first reference voltage, it is determined that the fuse F1 is not fused at this time, and the powder is not ignited; when the second voltage signal is less than the second reference voltage, it is determined that the fuse F1 is fused at this time, and the powder is ignited. When the second voltage signal is greater than the second reference voltage and less than the first reference voltage, it is determined that the fuse F1 is not fused but the powder is ignited at this time.

[0052] For in a specific embodiment, a specific scheme of providing a comparison module 50 is as follows:

[0053] In an embodiment, as shown in Figure 6 , Figure 6is a structural schematic diagram of the first embodiment of the comparison module provided in the present application; the comparison module 50 comprises: a comparison unit 51, a second filtering unit 52, a third filtering unit 53, a fourth filtering unit 54, a fifth filtering unit 55, and a pull-up unit 56; wherein the first end of the comparison unit 51 is grounded; the first end of the second filtering unit 52 is coupled to the second end of the comparison unit 51, the second end of the second filtering unit 52 is coupled to the control module 30, the second filtering unit 52 is used for outputting a second voltage signal to the control module 30, and the third end of the second filtering unit 52 is grounded; the first end of the third filtering unit 53 is coupled to the second end of the first switch module 10, the second end of the third filtering unit 53 is coupled to the third end of the comparison unit 51, and the third end of the third filtering unit 53 is grounded; the first end of the fourth filtering unit 54 is coupled to the fourth end of the comparison unit 51, the second end of the fourth filtering unit 54 is coupled to the control module 30, and the third end of the fourth filtering unit 54 is grounded; the first end of the fifth filtering unit 55 is coupled to the fifth end of the comparison unit 51 and a fourth voltage source, the second end of the fifth filtering unit 55 is grounded, and the third end of the fifth filtering unit 55 is coupled to the control module 30; the first end of the pull-up unit 56 is coupled to the fourth voltage source, and the second end of the pull-up unit 56 is coupled to the second end of the comparison unit 51.

[0054] Among them, the five ports of the comparison unit 51 are: the first end is a V- port (inverted input end), the second end is an OUT port (output end), the third end is a VIN+ port (positive input end), the fourth end is a VIN- port (negative input end), and the fifth end is a V+ (non-inverted input end). The fourth voltage source is a DC 3.3V power supply in an embodiment.

[0055] The specific structure of each unit structure in the above embodiment is described as follows:

[0056] In an embodiment, as shown in Figure 7 , Figure 7is a structural schematic diagram of a second embodiment of the comparison module provided in the present application; the second filtering unit 52 comprises: a fourth resistor R4 and a third capacitor C3, a first end of the fourth resistor R4 is coupled to a second end of the comparison unit 51, a second end of the fourth resistor R4 is coupled to the control module 30; a first end of the third capacitor C3 is coupled to the first end of the fourth resistor R4, and a second end of the third capacitor C3 is grounded; the third filtering unit 53 comprises: a fifth resistor R5 and a fourth capacitor C4; a first end of the fifth resistor R5 is coupled to a second end of the first switch module 10, and a second end of the fifth resistor R5 is coupled to a third end of the comparison unit 51; a first end of the fourth capacitor C4 is coupled to the second end of the fifth resistor R5, and a second end of the fourth capacitor C4 is grounded; the fourth filtering unit 54 comprises: a sixth resistor R6 and a fifth capacitor C5, a first end of the sixth resistor R6 is coupled to a fourth end of the comparison unit 51, and a second end of the sixth resistor R6 is coupled to the control module 30; a first end of the fifth capacitor C5 is coupled to the fourth end of the comparison unit 51, and a second end of the fifth capacitor C5 is grounded; the fifth filtering unit 55 comprises: a sixth capacitor C6, a first end of the sixth capacitor C6 is coupled to a fifth end of the comparison unit 51 and a fourth voltage source, and a second end of the sixth capacitor C6 is grounded; the pull-up unit 56 comprises: a seventh resistor R7, a first end of the seventh resistor R7 is coupled to the fourth voltage source, and a second end of the seventh resistor R7 is coupled to the second end of the comparison unit 51.

[0057] The present application also provides a fuse triggering circuit 200 applied to the electric shock device 300, as shown in Figure 8 Figure 8 is a structural schematic diagram of an embodiment of the fuse triggering circuit provided in the present application; the fuse triggering circuit 200 comprises: a fuse detection circuit 100, a second switch module 60, a second drive module 70 and a voltage division module 80; specifically, the fuse detection circuit 100 is the fuse detection circuit 100 described in any of the above embodiments; a first end of the second switch module 60 is used for coupling a second end of the first switch module 10, and a second end of the second switch module 60 is grounded; the second drive module 70 is coupled to a control end of the second switch module 60 and the control module 30; a first end of the voltage division module 80 is coupled to the first end of the second switch module 60, and a second end of the voltage division module 80 is coupled to the second end of the second switch module 60; wherein the control module 30 is used for sending a second control signal to the second drive module 70, controlling the second drive module 70 to output a second drive signal to control the second switch module 60 to be turned on, and sending a third control signal to the first drive module 20, controlling the first drive module 20 to output a third drive signal to control the first switch module 10 to be turned on, so as to make the fuse F1 be fused.

[0058] In an embodiment, the second switch module 60 is an N-type MOS tube.

[0059] ​In the above scheme, by adding the fuse excitation circuit 200 in the fuse detection circuit 100, the control module 30 outputs a control signal to control the second driving module 70 to output a driving signal to turn on the second switch module 60, and the conduction of the second switch module 60 causes the short circuit of the voltage division module 80, thereby increasing the current in the circuit in a short time, so that the fuse F1 is fused and the gunpowder is ignited to excite the electric shock device 300. For example, the control module 30 simultaneously issues a PWM signal to the first driving module 20 and the second driving module 70, controls the first driving module 20 and the second driving module 70 to issue a 1S driving signal to the first switch module 10 and the second switch module 60, and makes them conduct to cause the short circuit of the voltage division module 80, that is, the current through the fuse F1 in 1S is greater than its rated current, thereby causing the fuse F1 to heat and fuse and ignite the gunpowder. In an embodiment, the fuse F1 uses independent 5V power supply, and the first driving module 20 and the second driving module 70 use another 5V power supply.

[0060] The following is a specific embodiment scheme of the second driving module 70:

[0061] In an embodiment, as shown in Figure 9 , Figure 9 is a structural schematic diagram of the first embodiment of the second driving module provided by the present application; wherein the second driving module 70 comprises: a second driving chip 71, a sixth filter unit 72 and a second voltage division unit 73, the first end of the second driving chip 71 is coupled to the fifth voltage source, the second end and the fourth end of the second driving chip 71 are grounded, and the third end of the second driving chip 71 is coupled to the control module 30; the first end of the sixth filter unit 72 is coupled to the first end of the second driving chip 71, and the second end of the sixth filter unit 72 is coupled to the second end of the second driving chip 71; the first end of the second voltage division unit 73 is coupled to the fifth end of the second driving chip 71, the second end of the second voltage division unit 73 is coupled to the control end of the second switch module 60, and the third end of the second voltage division unit 73 is grounded.

[0062] Among them, the five ports of the second driving chip 71 are similar to the first driving chip 21 in the above, which will not be described in detail here.

[0063] In an embodiment, as shown in Figure 10 , Figure 10is a structural schematic diagram of a second embodiment of the second driving module provided in the present application; the sixth filter unit 72 comprises: a sixth capacitor C6, a first end of the sixth capacitor C6 is coupled with a first end of the second driving chip 71 and a sixth voltage source, and a second end of the sixth capacitor C6 is coupled with a second end of the second driving chip 71; the second voltage division unit 73 comprises: an eighth resistor R8 and a ninth resistor R9; a first end of the eighth resistor R8 is coupled with a fifth end of the second driving chip 71, and a second end of the eighth resistor R8 is coupled with a control end of the second switch module 60; a first end of the ninth resistor R9 is coupled with the second end of the eighth resistor R8, and a second end of the ninth resistor R9 is grounded.

[0064] The present application provides a shock device 300, such as Figure 11 , Figure 11 is a structural schematic diagram of an embodiment of the shock device provided in the present application; the shock device 300 comprises: a fuse detection circuit 100, the fuse detection circuit 100 is used for detecting whether the shock device 300 has been triggered, and the fuse detection circuit 100 is the fuse detection circuit 100 described in any one of the above embodiments; a fuse triggering circuit 200, the fuse triggering circuit 200 is coupled with the fuse detection circuit 100, and the fuse triggering circuit 200 is used for triggering the shock device 300, and the fuse triggering circuit 200 is the fuse triggering circuit 200 described in any one of the above embodiments.

[0065] The fuse detection circuit 100 provided in the present application is applied to the shock device 300, and the fuse detection circuit 100 comprises: a first switch module 10, a first end of the first switch module 10 is used for coupling with one end of a fuse F1; wherein the other end of the fuse F1 is coupled with a first voltage source; a first driving module 20, the first driving module 20 is coupled with a control end of the first switch module 10; a control module 30, the control module 30 is coupled with the first driving module 20 and a second end of the first switch module 10, and is used for sending a first control signal to the first driving module 20, controlling the first driving module 20 to output a first driving signal to control the first switch module 10 to be turned on, receiving a first voltage signal, and performing fuse detection and powder ignition detection according to the first voltage signal; wherein the first driving signal controls the on time to be less than the time required for powder ignition.

[0066] In the above manner, the control module and the driving module are used to realize short-time conduction of the first switch module, the fuse detection and the powder ignition detection of the fuse F1 are realized through the first voltage signal under the premise of avoiding powder ignition, the detection accuracy is improved, and the situation that the detection is inaccurate and it cannot be determined whether the fuse F1 is fused and whether the powder is ignited under the condition that the voltage difference changes little is avoided.

[0067] The above has carried out the detailed introduction to the embodiment of the application, the principle and implementation mode of the application have been described by applying specific examples in this paper, the above embodiment explanation is only for helping understanding the method of the application and its core idea; at the same time, for the person skilled in the art, according to the idea of the application, there will be changes in specific implementation mode and application range, and the above-mentioned, the content of the specification should not be understood as the limitation of the application.

Claims

1. A fuse detection circuit, characterized by, The fuse detection circuit is applied to a shock device and comprises: a first switch module, a first end of the first switch module being used for coupling one end of a fuse; wherein the other end of the fuse is coupled to a first voltage source; a first drive module, the first drive module being coupled to a control end of the first switch module; a control module, the control module being coupled to the first drive module and a second end of the first switch module, used for sending a first control signal to the first drive module, controlling the first drive module to output a first drive signal to control the first switch module to be turned on, receiving a first voltage signal, and performing fuse detection and powder ignition detection according to the first voltage signal; wherein the first drive signal controls a turn-on time which is less than a time required for powder ignition.

2. The fuse detection circuit of claim 1, wherein, The first drive module comprises: a first drive chip, a first end of the first drive chip being coupled to a second voltage source, a second end of the first drive chip being grounded, and a third end of the first drive chip being coupled to the control module; a first filter unit, a first end of the first filter unit being coupled to a third voltage source and a fourth end of the first drive chip, and a second end of the first filter unit being coupled to the second end of the first drive chip; a first voltage dividing unit, a first end of the first voltage dividing unit being coupled to a fifth end of the first drive chip, a second end of the first voltage dividing unit being coupled to the control end of the first switch module, and a third end of the first voltage dividing unit being coupled to the second end of the first switch module.

3. The fuse detection circuit of claim 2, wherein, The first filter unit comprises: a first capacitor, a first end of the first capacitor being coupled to the first end of the first drive chip and the third voltage source, and a second end of the first capacitor being coupled to the second end of the first drive chip; The first voltage dividing unit comprises: a first resistor, a first end of the first resistor being coupled to the fifth end of the first drive chip, and a second end of the first resistor being coupled to the control end of the first switch module; a second resistor, a first end of the second resistor being coupled to the second end of the first resistor, and a second end of the second resistor being coupled to the second end of the first switch module.

4. The fuse detection circuit of claim 1, wherein, The fuse detection circuit further comprises a filter module, a first end of the filter module being coupled to the second end of the first switch module, a second end of the filter module being coupled to the control module, and a third end of the filter module being grounded.

5. The fuse detection circuit of claim 4, wherein, The filter module comprises: a third resistor, a first end of the third resistor being coupled to the second end of the first switch module, and a second end of the third resistor being coupled to the control module; a second capacitor, a first end of the second capacitor being coupled to the second end of the third resistor, and a second end of the second capacitor being grounded.

6. The fuse detection circuit of claim 1, wherein, The fuse detection circuit further comprises: a comparison module, the comparison module being coupled to the second end of the first switch module and the control module, used for receiving the first voltage signal and outputting a second voltage signal to the control module according to the first voltage signal; wherein the control module receives the second voltage signal and performs fuse detection and powder ignition detection according to the second voltage signal.

7. The fuse detection circuit of claim 6, wherein, The comparison module comprises: a comparison unit, a first end of the comparison unit being grounded; a second filter unit, a first end of the second filter unit being coupled to a second end of the comparison unit, a second end of the second filter unit being coupled to the control module, for outputting the second voltage signal to the control module, a third end of the second filter unit being grounded; a third filter unit, a first end of the third filter unit being coupled to a second end of the first switch module, a second end of the third filter unit being coupled to a third end of the comparison unit, a third end of the third filter unit being grounded; a fourth filter unit, a first end of the fourth filter unit being coupled to a fourth end of the comparison unit, a second end of the fourth filter unit being coupled to the control module, a third end of the fourth filter unit being grounded; a fifth filter unit, a first end of the fifth filter unit being coupled to a fifth end of the comparison unit and a fourth voltage source, a second end of the fifth filter unit being grounded, a third end of the fifth filter unit being coupled to the control module; a pull-up unit, a first end of the pull-up unit being coupled to the fourth voltage source, a second end of the pull-up unit being coupled to the second end of the comparison unit.

8. The fuse detection circuit of claim 7, wherein, the second filter unit comprises: a fourth resistor, a first end of the fourth resistor being coupled to the second end of the comparison unit, a second end of the fourth resistor being coupled to the control module; a third capacitor, a first end of the third capacitor being coupled to the first end of the fourth resistor, a second end of the third capacitor being grounded; the third filter unit comprises: a fifth resistor, a first end of the fifth resistor being coupled to the second end of the first switch module, a second end of the fifth resistor being coupled to the third end of the comparison unit; a fourth capacitor, a first end of the fourth capacitor being coupled to the second end of the fifth resistor, a second end of the fourth capacitor being grounded; the fourth filter unit comprises: a sixth resistor, a first end of the sixth resistor being coupled to the fourth end of the comparison unit, a second end of the sixth resistor being coupled to the control module; a fifth capacitor, a first end of the fifth capacitor being coupled to the fourth end of the comparison unit, a second end of the fifth capacitor being grounded; the fifth filter unit comprises: a sixth capacitor, a first end of the sixth capacitor being coupled to the fifth end of the comparison unit and the fourth voltage source, a second end of the sixth capacitor being grounded; the pull-up unit comprises: a seventh resistor, a first end of the seventh resistor being coupled to the fourth voltage source, a second end of the seventh resistor being coupled to the second end of the comparison unit.

9. A fuse triggering circuit, characterized by application to a shock device, the fuse triggering circuit comprises: a fuse detection circuit, the fuse detection circuit being as claimed in any one of claims 1-8; a second switch module, a first end of the second switch module being coupled to a second end of the first switch module, a second end of the second switch module being grounded; a second drive module, the second drive module being coupled to a control end of the second switch module and the control module; a voltage division module, a first end of the voltage division module being coupled to the first end of the second switch module, a second end of the voltage division module being coupled to the second end of the second switch module; The control module is configured to send a second control signal to the second driving module to control the second driving module to output a second driving signal to control the second switch module to be turned on, and send a third control signal to the first driving module to control the first driving module to output a third driving signal to control the first switch module to be turned on, so that the fuse is blown and the gunpowder is ignited.

10. A shock device, characterized by The electric shock device comprises: a fuse detection circuit configured to detect whether the electric shock device has been triggered, the fuse detection circuit being as claimed in any one of claims 1 to 8; a fuse triggering circuit coupled to the fuse detection circuit, the fuse triggering circuit being configured to trigger the electric shock device, the fuse triggering circuit being as claimed in claim 9.

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