Two-dimensional correction fuse safety device

Abstract

The utility model provides a two-dimensional correction fuse safety device which comprises a resistor R1, one end of the resistor R1 is respectively connected with a plug pin negative interface, a battery negative interface and a charging negative interface, and the other end of the resistor R1 is grounded; one end of the resistor R2 is connected with one end of the resistor; one end of the resistor R3 is respectively connected with the battery positive interface, the charging positive interface and the bolt positive interface, and the other end of the resistor R3 is connected with one end of the resistor R2; the grid electrode of the field effect transistor Q1 is respectively connected with the other end of the resistor R2 and the output end of the control module, the drain electrode of the field effect transistor Q1 is connected with the positive interface of the two-dimensional correction fuze, the negative interface of the two-dimensional correction fuze is grounded, and the source electrode of the field effect transistor Q1 is connected with one end of the resistor R3; the input end of the voltage detection side module is connected with the battery positive interface and the battery negative interface, and the output end of the voltage detection module is connected with the input end of the control module. The utility model has the beneficial effects that the power consumption can be reduced, and the service time of the battery is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of power supply safety devices, and more specifically, to a two-dimensional correction fuse safety device. Background Technology

[0002] Traditional fuze systems mostly employ inertial navigation, satellite positioning (such as GPS), or single-dimensional trajectory correction mechanisms to achieve ballistic control. However, such technologies have significant limitations in practical applications: inertial navigation is susceptible to accumulated errors, leading to decreased accuracy in long-range strikes; satellite positioning signals are easily affected by electromagnetic interference or obstructed environments, making them difficult to adapt to complex battlefield requirements; and single-function fuzes can only adjust the trajectory through axial thrust or drag, failing to achieve lateral position correction and thus failing to meet the demands of high-dynamic, multi-dimensional precision guidance.

[0003] In recent years, two-dimensional correction fuzes (2D-CRFs) have gradually become a research hotspot. By integrating two-dimensional ballistic correction modules (such as micro servos, pulse thrust devices, etc.) with onboard sensors, they can sense the attitude and deviation of the projectile in real time during flight and autonomously generate composite lateral and longitudinal correction commands, significantly improving the accuracy of munitions in complex environments.

[0004] To improve guidance accuracy, more and more warheads are being equipped with guidance systems. However, in order to reduce costs, the two-dimensional correction fuses in current missile guidance systems are not equipped with power supply protection devices, meaning that the system power supply is always on. This greatly increases the power consumption of the entire system, reduces battery life, and is not conducive to long-term endurance use. Utility Model Content

[0005] The technical problem to be solved by this utility model is to reduce power consumption and increase battery life. In order to overcome the defects of the prior art (or related technology) mentioned above, this utility model provides a two-dimensional correction fuse safety device.

[0006] This utility model provides a two-dimensional corrective fuse safety device, comprising:

[0007] Resistor R1, one end of which is connected to the negative connector of the plug, the negative connector of the battery, and the negative connector of the charging port, and the other end of resistor R1 is grounded;

[0008] Resistor R2, one end of which is connected to one end of the resistor;

[0009] Resistor R3, one end of which is connected to the battery positive interface, the charging positive interface and the plug positive interface respectively, and the other end of resistor R3 is connected to one end of resistor R2;

[0010] The field-effect transistor Q1 has its gate connected to the other end of the resistor R2 and the output terminal of the control module, respectively. The drain of the field-effect transistor Q1 is connected to the positive interface of the two-dimensional correction fuze and the negative interface of the two-dimensional correction fuze is grounded. The source of the field-effect transistor Q1 is connected to one end of the resistor R3.

[0011] A voltage detection module is provided, with its input terminals connected to the positive and negative interfaces of the battery, and its output terminal connected to the input terminal of the control module.

[0012] Compared with the prior art, the two-dimensional modified fuse safety device of this utility model has the following advantages:

[0013] This application introduces a latch switch as a control signal provider for battery opening and closing. The latch switch is connected via its positive and negative interfaces. The battery is powered via its positive and negative interfaces, and a charger is powered via its positive and negative interfaces. The two-dimensional correction fuze of the guidance system is connected via its positive and negative interfaces for opening and closing control. When the latch switch is connected to the circuit, resistor R3 is short-circuited, and the voltage at the connection point of resistors R1 and R3 equals the battery voltage. This disconnects the field-effect transistor Q1, stopping the control of the two-dimensional correction fuze. The system provides power to the 2D correction fuze. When the plug switch is disconnected from the circuit, a bias voltage is provided to the field-effect transistor Q1 through the voltage divider of resistors R1 and R2 to control the conduction of the field-effect transistor Q1, thereby powering the 2D correction fuze. The voltage detection module continuously monitors the real-time voltage of the battery. When the real-time voltage is higher than the preset threshold, the control module controls the field-effect transistor Q1 to conduct. When the real-time voltage is lower than the preset threshold, the control module controls the field-effect transistor Q1 to deactivate, saving battery power. By reasonably controlling the power supply status of the 2D correction fuze, power consumption can be reduced and battery life can be increased.

[0014] In one possible implementation, the voltage detection module includes:

[0015] Resistor R4, one end of which is connected to the positive terminal of the battery;

[0016] Capacitor C1, one end of which is connected to the other end of resistor R4, and the other end of capacitor C1 is connected to the negative terminal of the battery;

[0017] Resistor R5, one end of which is connected to one end of resistor R4, and the other end of resistor R5 is connected to one end of capacitor C1;

[0018] Resistor R6, one end of which is connected to the other end of resistor R5, and the other end of resistor R6 is connected to the base of transistor Q2;

[0019] Resistor R7, one end of which is connected to the other end of resistor R6, and the other end of resistor R7 is connected to the other end of capacitor C1;

[0020] Diode D1, the anode of diode D1 is connected to one end of resistor R5, and the cathode of diode D1 is connected to the emitter of transistor Q2;

[0021] Resistor R8, one end of which is connected to the collector of transistor Q2, and the other end of which is connected to the base of transistor Q3;

[0022] Resistor R9, one end of which is connected to the base of transistor Q3, and the other end of which is connected to the other end of resistor R7 and the emitter of transistor Q3 and grounded;

[0023] Resistor R10, one end of which is connected to the positive terminal of diode D1, and the other end of resistor R7 is connected to the collector of transistor Q3 and the input terminal of the control module respectively.

[0024] One end of resistor R4 and the other end of capacitor C1 serve as the input terminal of the voltage detection module, and the other end of resistor R7 serves as the output terminal of the control module.

[0025] In one possible implementation, the capacitor C1 is a filter capacitor.

[0026] In one possible implementation, the field-effect transistor Q1 is an N-channel MOS transistor.

[0027] In one possible implementation, a light-emitting diode is provided between the positive interface of the two-dimensional correction fuze and the drain of the field-effect transistor Q1.

[0028] In one possible implementation, the control module is a microcontroller.

[0029] In one possible implementation, the battery connected to the positive and negative interfaces is a 9V lithium thionyl chloride battery. Attached Figure Description

[0030] Figure 1 This is the electrical schematic diagram of this utility model;

[0031] Figure 2 This is the electrical schematic diagram of the voltage detection module of this utility model. Detailed Implementation

[0032] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] See Figure 1 This utility model discloses a two-dimensional correction fuse safety device, including four 2P connector interfaces, resistors R1, R2, and R3, a field-effect transistor Q1, and a voltage detection module. The four 2P connector interfaces are a charging interface, a pin interface, a two-dimensional correction fuse interface, and a battery interface, respectively. Each connector interface includes a positive interface and a negative interface. One end of resistor R1 is connected to the pin negative interface, the battery negative interface, and the charging negative interface, respectively, and the other end of resistor R1 is grounded. One end of resistor R2 is connected to one end of a resistor. One end of resistor R3 is connected to the battery positive interface, the charging positive interface, and the pin positive interface, respectively, and the other end of resistor R3 is connected to one end of resistor R2. The gate of the field-effect transistor Q1 is connected to the other end of resistor R2 and the output terminal of the control module. The drain of the field-effect transistor Q1 is connected to the two-dimensional correction fuse positive interface, and the two-dimensional correction fuse negative interface is grounded. The source of the field-effect transistor Q1... One end of resistor R3 is connected to the input terminal of the voltage detection module, which is connected to the positive and negative terminals of the battery, respectively. The output terminal of the voltage detection module is connected to the input terminal of the control module. When the plug switch is connected to the circuit through the positive and negative terminals, resistor R3 is short-circuited, and the voltage at the connection point of resistors R1 and R3 is equal to the battery voltage. This controls the MOSFET Q1 to disconnect and stop supplying power to the two-dimensional correction fuse. When the plug switch is disconnected from the circuit, a bias voltage is provided to the MOSFET Q1 through the voltage divider between resistors R1 and R2 to control the MOSFET Q1 to conduct, thereby supplying power to the two-dimensional correction fuse. The voltage detection module continuously monitors the real-time voltage of the battery connected to the positive and negative terminals. When the real-time voltage is higher than a preset threshold, the control module controls the MOSFET Q1 to conduct. When the real-time voltage is lower than the preset threshold, the control module controls the MOSFET Q1 to disconnect to save battery power.

[0035] The charging interface supports fast charging of lithium thionyl chloride batteries. The positive and negative charging interfaces use gold-plated terminals to reduce contact resistance. The plug interface has an external mechanical plug as a hardware safety device, which forcibly cuts off the power supply circuit when inserted. The dual redundancy design avoids single-point failure. The output of the two-dimensional correction fuse interface can be configured with a transient voltage suppressor (TVS) to prevent surge impact and ensure circuit stability. The battery interface is matched with a 9V lithium thionyl chloride battery (ER9V), whose high energy density (1200mAh) and wide temperature range characteristics (-40℃~85℃) meet the needs of extreme environments.

[0036] In this embodiment, a voltage divider network design is used. Resistor R1 is 10kΩ and resistor R2 is 4.7kΩ to form a proportional voltage divider. When the plug switch is pulled out, the node of resistor R1 and resistor R2 provides a bias voltage of about 3.6V to ensure that the field-effect transistor Q1 is fully turned on.

[0037] See Figure 2 The voltage detection module includes resistor R4, capacitor C1, resistor R5, resistor R6, resistor R7, diode D1, resistor R8, transistor Q2, resistor R9, transistor Q3, and resistor R10. One end of resistor R4 is connected to the positive terminal of the battery; one end of capacitor C1 is connected to the other end of resistor R4, and the other end of capacitor C1 is connected to the negative terminal of the battery; one end of resistor R5 is connected to one end of resistor R4, and the other end of resistor R5 is connected to one end of capacitor C1; one end of resistor R6 is connected to the other end of resistor R5, and the other end of resistor R6 is connected to the base of transistor Q2; one end of resistor R7 is connected to the other end of resistor R6, and the other end of resistor R7 is connected to the other end of capacitor C1. One end of the diode D1 is connected to one end of the resistor R5, and the other end of the diode D1 is connected to the emitter of the transistor Q2. One end of the resistor R8 is connected to the collector of the transistor Q2, and the other end of the resistor R8 is connected to the base of the transistor Q3. One end of the resistor R9 is connected to the base of the transistor Q3, and the other end of the resistor R9 is connected to the other end of the resistor R7 and the emitter of the transistor Q3 and grounded. One end of the resistor R10 is connected to the anode of the diode D1, and the other end of the resistor R7 is connected to the collector of the transistor Q3 and the input terminal of the control module. One end of the resistor R4 and the other end of the capacitor C1 serve as the input terminal of the voltage detection module, and the other end of the resistor R7 serves as the output terminal of the control module.

[0038] An RC low-pass filter is formed by capacitor C1 (10μF tantalum capacitor) and resistor R4, with a cutoff frequency of 16Hz, effectively suppressing battery voltage ripple. Resistors R5 (2.2kΩ), R6 (3.3kΩ), and diode D1 (1N4148) form a voltage divider reference. The forward voltage drop of diode D1 of 0.7V serves as the conduction threshold of transistor Q2. Transistors Q2 (2N3904) and Q3 (2N3906) form a complementary comparator. When the real-time battery voltage is greater than 9V, the collector of transistor Q3 outputs a high level to the microcontroller, triggering the field-effect transistor Q1 to conduct; it turns off when it is below 7.2V. At the same time, a hysteresis design is adopted, i.e., resistor R8 is 10kΩ and resistor R9 is 22kΩ, to avoid critical oscillation.

[0039] The control module uses an STM8L051F3P6 microcontroller with a built-in 12-bit ADC for real-time sampling of battery voltage. It features a low-power mode (<1μA) to extend standby time, and the preset threshold can be configured by software (default 7.2V±5%). It also supports online calibration via serial port.

[0040] Capacitor C1 is a filter capacitor, MOSFET Q1 is an N-channel MOSFET, and an LED is located between the positive interface of the two-dimensional correction fuse and the drain of MOSFET Q1. The control module is a microcontroller, and the battery connected to the positive and negative interfaces is a 9V lithium thionyl chloride battery.

[0041] The power supply status of the two-dimensional correction fuse is indicated by the light-emitting diode. Specifically, a high-brightness red LED (forward voltage drop 2.1V) is connected in series at the drain of the field-effect transistor Q1, and the operating current is limited to within 5mA. The power supply status is clearly indicated by visual feedback.

[0042] In the description of this utility model, the terms "one embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A two-dimensional correction fuse safety device, characterized in that, include: Resistor R1, one end of which is connected to the negative connector of the plug, the negative connector of the battery, and the negative connector of the charging port, and the other end of resistor R1 is grounded; Resistor R2, one end of which is connected to one end of the resistor; Resistor R3, one end of which is connected to the battery positive interface, the charging positive interface and the plug positive interface respectively, and the other end of resistor R3 is connected to one end of resistor R2; The field-effect transistor Q1 has its gate connected to the other end of the resistor R2 and the output terminal of the control module, respectively. The drain of the field-effect transistor Q1 is connected to the positive interface of the two-dimensional correction fuze and the negative interface of the two-dimensional correction fuze is grounded. The source of the field-effect transistor Q1 is connected to one end of the resistor R3. A voltage detection module is provided, with its input terminals connected to the positive and negative interfaces of the battery, and its output terminal connected to the input terminal of the control module.

2. The two-dimensional corrected fuse safety device according to claim 1, characterized in that, The voltage detection module includes: Resistor R4, one end of which is connected to the positive terminal of the battery; Capacitor C1, one end of which is connected to the other end of resistor R4, and the other end of capacitor C1 is connected to the negative terminal of the battery; Resistor R5, one end of which is connected to one end of resistor R4, and the other end of resistor R5 is connected to one end of capacitor C1; Resistor R6, one end of which is connected to the other end of resistor R5, and the other end of resistor R6 is connected to the base of transistor Q2; Resistor R7, one end of which is connected to the other end of resistor R6, and the other end of resistor R7 is connected to the other end of capacitor C1; Diode D1, the anode of diode D1 is connected to one end of resistor R5, and the cathode of diode D1 is connected to the emitter of transistor Q2; Resistor R8, one end of which is connected to the collector of transistor Q2, and the other end of which is connected to the base of transistor Q3; Resistor R9, one end of which is connected to the base of transistor Q3, and the other end of which is connected to the other end of resistor R7 and the emitter of transistor Q3 and grounded; Resistor R10, one end of which is connected to the positive terminal of diode D1, and resistor R7, the other end of which is connected to the collector of transistor Q3 and the input terminal of the control module respectively; One end of resistor R4 and the other end of capacitor C1 serve as the input terminal of the voltage detection module, and the other end of resistor R7 serves as the output terminal of the control module.

3. The two-dimensional corrected fuse safety device according to claim 2, characterized in that, The capacitor C1 is a filter capacitor.

4. The two-dimensional corrected fuse safety device according to claim 2, characterized in that, The field-effect transistor Q1 is an N-channel MOSFET.

5. The two-dimensional corrected fuse safety device according to claim 1, characterized in that, A light-emitting diode is provided between the positive interface of the two-dimensional correction fuse and the drain of the field-effect transistor Q1.

6. The two-dimensional corrected fuse safety device according to claim 1, characterized in that, The control module is a microcontroller.

7. The two-dimensional corrected fuse safety device according to claim 1, characterized in that, The battery connected to the positive and negative interfaces is a 9V lithium thionyl chloride battery.

Images