KR101121866B1 - Proximity fuse with inducement coil for electronic time set - Google Patents

Abstract

We propose the proximity fuse of the electromagnetic induction time insertion method which can charge the time value by the electromagnetic induction method and has the proximity function. The proposed proximity fuse includes a radio wave transceiver for transmitting and receiving a radio wave for detecting a target, and a time value inducing element which is installed at a predetermined distance apart from the radio wave transceiver and receives a time value from a time inserter through electromagnetic induction. The time value is charged by electromagnetic induction method instead of mechanically setting the time value, so there is no need to worry about mechanical alignment. By installing the time-inducing element in the fuse and the radio transceiver for implementing the proximity function together in front of the main body case (ie, the front of the fuse), the installation and the time setting of the components for the implementation of the proximity function are very easy.

Description

Proximity fuse with inducement coil for electronic time set}

The present invention relates to a proximity fuse of the electromagnetic induction time-charging method, and more particularly, to a proximity fuse of the electromagnetic induction time-charging method mounted on a large diameter shell or the like.

Fuses are devices that ignite gunpowder charged in bullets, bombs, torpedoes, etc. Fuses are categorized into rapid fuse, delay fuse, time fuse, and proximity fuse according to their function.

Since the present invention relates to a proximity fuse, the background art also describes a conventional proximity fuse. Proximity fuses are fuses that combine with shells and guided missiles to explode automatically when approaching a certain distance to the target.

1 is a circuit diagram for explaining a time adjustment of a conventional proximity fuse. 2 is a view showing an example of a conventional proximity fuse. 3 is a cross-sectional view taken along the line AA of FIG. 2. Reference numeral 10 is a timer sleeve, and reference numeral 12 is a lead wire of the fixed resistor R _B ; The lead wire 12 is positioned between the variable resistor R _A 18 and the fixed resistor R _B 20. Reference numeral 14 is a lead wire of the fixed resistor R _B ; Reference numeral 16 denotes a time adjustment circuit. The time adjustment circuit portion 16 includes a variable resistor R _A 18 and a fixed resistor R _B 20. Reference numeral 22 is a time adjustment integrated circuit.

The conventional proximity fuse of FIG. 2 has an antenna at the front of the fuse (ie, means that there is a proximity function), but no induction coil is installed. Accordingly, the conventional proximity fuse of FIG. 2 mechanically charges (sets) the time limit. That is, an operator (time adjuster) sets a desired time limit by rotating the timer sleeve 10 to an appropriate torque using a jig (not shown). When the timer sleeve 10 is rotated, the parallel resistance value R _AB between the variable resistor R _A 18 (for example, made of a ceramic film) and the fixed resistor R _B 20 of the time adjustment circuit part 16 is rotated. ) Is determined. The resistance R _AB and the RC time constant of the capacitor become the time limit of the proximity fuse. Here, the time limit can be adjusted in approximately 3 to 150 seconds by the position of the variable resistor 18, that is, the variable resistance value.

When the shell is fired after the time value has been charged (set), a voltage is charged to the detonation energy storage capacitor. At the same time, a multivibrator (not shown) inside the time adjustment integrated circuit 22 operates. When a short time is entered, power is output through pin 13 of the time adjustment integrated circuit 22, and the output power is supplied to an amplifier (not shown) and an oscillator (not shown).

In the case of the conventional proximity fuse in which the time value is mechanically loaded, efforts should be made to ensure mechanical alignment in order to reduce the time error. In addition, due to mechanical aging, the timer sleeve for time setting is not rotated well, and the internal contact spring (not shown) is damaged due to repeated time setting. When this problem occurs, the time value setting may be incorrect or the time value setting may not be performed.

The present invention has been proposed in order to solve the above-described problems, and an object thereof is to provide a proximity fuse of an electromagnetic induction time-loading method which can be charged with a time value by an electromagnetic induction method and has a proximity function.

In order to achieve the above object, the proximity fuse of the electromagnetic induction time-charging method according to a preferred embodiment of the present invention, a radio wave transceiver for transmitting and receiving a radio wave for sensing a target; And a time value inducing element installed at a predetermined distance apart from the radio wave transceiver and receiving a time value from the time charge device through electromagnetic induction.

The radio transceiver and the time value inducing element are formed to protrude forward of the main body case, and are covered by a cap coupled to the main body case.

The time value inducing element is composed of an induction coil.

And an induction charging unit for charging the time value through the time value inducing element, and an amplifier / filter unit for processing a signal sensed through the radio transceiver.

A metallic protective member is provided to protect the time value inducing element, the inductive charging portion, and the amplification / filtering portion from the inertial force caused by the shot.

Due to the protection member, an installation space is secured between the inner surface of the cap and one side of the protection member, and the time value inducing element is installed on one side of the protection member through the insulating member in the installation space.

The inductive charging section and the amplification / filter section are each hybridized.

The hybrid IC induction charging unit and amplification / filter unit are installed on the upper surface of the substrate, and the protection member is installed on the upper surface of the substrate, and the installation space is secured between the protection member and the substrate. The part is installed on the upper surface of the substrate in the installation space.

According to the present invention having such a configuration, the time value is charged by the electromagnetic induction method rather than the time value (setting) mechanically, there is no need to worry about mechanical alignment.

By installing the time-inducing element in the fuse and the radio transceiver for implementing the proximity function together in front of the main body case (ie, the front of the fuse), the installation and the time setting of the components for the implementation of the proximity function are very easy. It is also easy to correct the time setting.

Since the protective member is made of a metallic material that can withstand tens of thousands of gravitational acceleration (G) reversing inertia force, it is possible to maintain the space where the induction coil and signal processing part of the reinforcement is installed from the inertia force generated during the firing. In addition, the reliability of the induction coil and the signal processor is secured.

Hereinafter, referring to the attached fuse of the electromagnetic induction time-loading method according to an embodiment of the present invention with reference to the accompanying drawings. Prior to the description of the present invention, the terms or words used in the specification and claims described below should not be construed as being limited to the common or dictionary meaning. Configurations shown in the embodiments and drawings described herein are only one of the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention. Accordingly, it should be understood that there may be various equivalents and variations in place of them at the time of the present application.

A feature of the proximity fuse of the electromagnetic induction time-entry method of the embodiment of the present invention is that the antenna 56 is installed at the foremost part of the fuse and the induction coil L2 is installed at the rear of the predetermined distance to be spaced apart from the antenna 56. This is for the convenience of proximity function and time charging. Conventional electronic induction time-loading electronic time-fuse fuse (registration No. 0841680) is not able to perform the proximity function, but merely put the induction coil in the front of the fuse for the convenience of time loading. And, even if you look for other prior art, it is difficult to find a combination of the induction coil (L2) and the antenna 56 as in the embodiment of the present invention.

In addition, another feature of the embodiment of the present invention is to hybridize the induction charging unit 40 and the amplifying / filtering unit 70 except for the induction coil L2 to form a substrate 130 (for example, a circuit pattern on both sides). Metal substrate formed). This is to solve the lack of space of the electronic unit 100 due to the electronic induction charging method. For example, the module 140 of FIG. 6 hybridizes the induction charging unit 40 except the induction coil L2, and the module 150 of FIG. 6 converts the amplification / filter unit 70 into the hybrid IC. It becomes anger. In this way, the induction charging unit 40 excluding the induction coil L2 is hybridized and the amplification / filter unit 70 is hybridized to secure sufficient space in the fuse for constructing the electronic unit 100. do.

Another feature of the embodiment of the present invention, the induction coil (L2) and the signal processing unit (i.e., the induction coil (L2) and oscillation unit 52 and antenna 56 in the electronic unit 100) from the high backward inertial force generated during shooting In order to keep the space where it is installed) as it is, the metallic protective member 114 is installed.

Such features will be described in more detail in the following description based on FIGS. 5 and 6, and first, the proximity fuse of the electromagnetic induction time-loading method according to the embodiment of the present invention based on the block diagram of FIG. 4. Explain the internal structure of

The proximity fuse of the electromagnetic induction time-entry method of the present invention has a proximity function (or proximity mode) and an impact function (or shock mode). Proximity is the ability to explode at a certain height a few seconds before hitting a target (eg, a target such as the surface or surface). The impact function is a function that causes the fuse to explode while detonating the fuse only when hitting a target (for example, a target such as the surface or the surface of the water).

The proximity fuse of the present invention includes an electronic unit 100, a power supply unit 80, and a safety loading device 90.

The electronic unit 100 includes an induction charging unit 40 for charging a time value using an electromagnetic induction phenomenon, a sensing unit 60 for detecting a target, an amplifier / filter unit 70 for processing a sensed signal, and an ignition circuit unit. 72, and gates 74 and 76, and a power / time circuit portion 78. As shown in FIG. The electronic unit 100 may be referred to as an electronic assembly.

The induction charging unit 40 includes an induction coil L2, a constant voltage generator 32, a low pass filter 34, a detector 36, a reverse transfer switch 38, and a one-chip computer 50. Induction coil (L2) is installed in the fuse corresponding to the induction coil (L1) of the time-charger (30). The time value inducing element described in the claims of the present invention refers to an electric device that can receive a time value through the induction coil L1 of the time charge device 30 using an electromagnetic induction phenomenon. Induction coil (L2) is an example of the time value induction element. Of course, as long as the time value can be passed by the electromagnetic induction phenomenon other than the induction coil L2, any one may be an example of the time value induction element. A more detailed description of the induction coil (L2) will be described later. The time value guided to the induction coil L2 is transmitted to the induction time controller 42 in the one-chip computer 50 through the low pass filter 34 and the detector 36. The induction time limit section 42 stores the input time limit value in the memory 44 in the corresponding one-chip computer 50. The induction time limiting unit 42 sends a signal confirming that the time value received from the time limiter 30 is properly input to the time limiter 30 through the reverse transfer switch 38. The constant voltage generator 32 sends a stable DC power source capable of temporarily driving the induction time controller 42 at the time of charging the battery to the induction time controller 42.

In the specification of the present invention, the reference numeral 40 is referred to as an induction charging unit, but may be expressed in other words. On the other hand, the other components except the induction coil (L2) in the induction charging unit 40 is hybridized to be installed on the substrate 130 as one module 140 (see FIGS. 5 and 6). This is to solve the lack of installation space of the electronic unit 100 due to the electronic induction charging method.

The sensing unit 60 includes an oscillator 52, a circulator 54, an antenna 56, and a mixer 58. The oscillator 52 generates an AC sine wave signal. The circulator 54 is directly connected to the antenna 56 and distinguishes between a transmitted signal and a received signal. The antenna 56 radiates an alternating sine wave signal (wave) from the oscillator 52 input through the circulator 54 to the outside (that is, the target) and receives the reflected wave reflected back from the target. Mixer 58 detects the Doppler signal from the reflected wave received via antenna 56. The antenna 56 is an example of a radio transceiver described in the claims of the present invention.

The detector 60 operates by receiving power from the power supply unit 80 a few seconds before reaching the target (for example, a target such as the ground or the sea surface) when the fuse is operated in the proximity mode. This is because, due to the life of the battery (not shown) in the fuse, it is preferable not to supply power to the detection unit 60 while minimizing the current consumed during flight.

In other words, the detector 60 generates an AC sine wave signal from the oscillator 52 when power is supplied from the power supply 80 after the shot is fired. The generated signal is radiated outward through the antenna 56. The antenna 56 then receives a signal (reflected wave) coming back from the target and detects the Doppler signal through the mixer 58.

Since the signal output from the mixer 58 is very weak and includes various kinds of radio waves or noise signals, the amplification / filter unit 70 detects and amplifies only a desired signal.

The amplifying / filtering unit 70 includes a target signal discriminating unit 62, a noise signal removing unit 64, and an end gate 66. The target signal separating unit 62 amplifies the signal output from the mixer 58 and separates a desired signal (target signal). The noise signal removing unit 64 amplifies the signal output from the mixer 58 and removes unwanted radio waves or noise signals. The AND gate 66 outputs a signal (eg, “1”) indicating that the target is detected when the target signal discriminating unit 62 and the noise signal removing unit 64 perform a desired operation. Although illustrated as an AND gate 66 in FIG. 4, alternatively, the noise signal may be removed from the amplified Doppler signal and the target signal may be classified into a determination unit that outputs a signal indicating that the target is detected.

In the exemplary embodiment of the present invention, the amplification / filter unit 70 is hybridized and installed on the substrate 130 as one module 150 (see FIG. 6). This is to solve the lack of installation space of the electronic unit 100 due to the electronic induction charging method.

The ignition circuit unit 72 outputs an ignition signal (eg, "1") by the one-chip computer 50 after the shot is fired. The one-chip computer 50 outputs a high level signal through the ignition circuit unit 72 when it is determined that the shot in flight has reached the target position in question. As the shot is fired, the one-chip computer 50 that receives power from the power supply unit 80 counts through an internal timer (not shown) and reaches a proper position when a predetermined time before the time limit (for example, five seconds). I judge it. By the determination of this method, the ignition circuit unit 72 can output the ignition signal.

The AND gate 74 outputs a high level signal (eg, "1") by the impact force and the ignition signal from the ignition circuit portion 72. For example, the AND gate 74 is used when the fuse has lost proximity or is set in impact mode.

The AND gate 76 receives a high level signal (eg, “1”) or a low level signal (eg, “0”) based on the signal from the AND gate 66 and the signal from the ignition circuit unit 72. Output For example, the AND gate 76 receives a high level signal from the AND gate 66 and outputs a high level signal when an ignition signal (a high level signal) is input from the ignition circuit unit 72. Here, it is assumed that the AND gate 76 is used when the operating mode of the fuse is set to the proximity mode.

The power supply / timeout circuit unit 78 receives power from the power supply unit 80 which will be described later.

In the electronic unit 100 illustrated in FIG. 4, the remaining portions other than the induction coil L2, the oscillator 52, and the antenna 56 may be collectively referred to as a signal processor.

When the shot is fired, the reverse moment of inertia and rotation are generated simultaneously. Inside the power supply unit 80, there is a liquid bottle (not shown) for storing an electrolyte solution (for example, HBF ₄ ). The bottle is broken by the backward inertia force and the electrolyte is mixed by the rotational force to generate electricity.

The power supply unit 80 includes an AND gate 82 and a voltage generator 84. The power supply 80 may also be referred to as a power supply assembly. Here, the AND gate 82 may be considered to play a role of transmitting the backward inertia force and the rotational force generated as the shot is fired to the voltage generator 84. Thus, the AND gate 82 is to be understood that the power source 80 is shown to express the reverse inertial force and rotational force in order to generate power. The voltage generator 84 generates a voltage corresponding to the degree of mixing of the electrolyte in the liquid bottle (not shown) broken by the input backward inertia force and the rotational force, and supplies the voltage to the power / time circuit portion 78 of the electronic unit 100.

The safety loading device 90 aligns the explosion sequence after securing the safety distance in front of the muzzle when the backward inertia force and the rotational force generated as the shot is fired are input. The safety device 90 includes an end gate 92 and an explosion-based alignment 94. Here, the AND gate 92 may be regarded as having a role of transmitting the backward inertia force and the rotational force generated as the shot is fired to the explosion-based alignment unit 94. Thus, the end gate 92 is to be understood as shown to represent that the safety loading device 90 requires a reverse inertia force and rotational force. The explosion sequence alignment unit 94 aligns the explosion series (electric detonation tube-immersion detonation tube-connector-booster, etc.) by the input backward inertia force and rotational force. For example, the explosion sequence alignment unit 94 outputs a high level signal (eg, “1”) when the explosion sequence alignment is completed.

The OR gate 96 emits a predetermined output signal based on the output signals of the AND gate 74 and the AND gate 76. The AND gate 98 emits a predetermined output signal based on the output signals of the explosion sequence alignment unit 94 and the OR gate 96. For example, if the output signal of the AND gate 98 is a high level signal (eg, "1"), the gunpowder will explode.

Hereinafter, structural features of the present invention will be described in more detail with reference to FIGS. 5 and 6. 5 is a cross-sectional view of the proximity fuse of the electromagnetic induction time-charging method according to an embodiment of the present invention, Figure 6 is a view showing a state in which the induction charging unit and the amplification / filter unit except the induction coil of FIG. to be.

One induction coil (L1) (L2) is used for the time charger 30 and the fuse for the electromagnetic induction. The inductances of the induction coils L1 and L2 are obtained from the LC oscillator using the capacitance value and the intrinsic oscillation frequency, respectively. In the present invention, the number of windings of the guide coil L2 is determined by putting the diameter and width of the space 110 (see FIG. 5) where the guide coil L2 is located in the calculation formula.

The antenna 56 and the induction coil L2 are formed to protrude forward of the main body case 120 as shown in FIG. 5, and are covered by a cap 118 covering the front of the main body case 120. In this case, the antenna 56 is provided at the foremost end, and the induction coil L2 is spaced apart from the antenna 56 at the rear. In other words, the antenna 56 was placed at the foremost end with the oscillator 52 in the middle, and the induction coil L2 was installed at the rear of the oscillator 52 to be spaced apart from the antenna 56. Thus, by installing the antenna 56 and the induction coil (L2) in front of the main body case 120 (that is, the front of the fuse), it is very easy to install and time setting of the components for the implementation of the proximity function. It is also easy to correct the time setting.

In particular, the induction coil L2, the induction charging unit 40 and the amplification / filter unit 70 are protected by the metallic protection member 114. Induction coil (L2) is installed on the protective member 114 via the bobbin 112 of insulating (for example, plastic). In order to ensure the reliability of electromagnetic induction, there should be no metal around the induction coil (L2). By the way, in order to protect the fuse from the reverse inertial force generated during the firing is inevitably required a protective member 114 made of a metal material. Accordingly, in the embodiment of the present invention, the induction coil L2 and the protection member 114 are separated from each other by using the insulating bobbin 112 in the metal protection member 114. Then, the thickness of the induction coil (L2) is made as thick as possible, and the coil is wound in multiple layers to increase the amount of induced current. The width | variety of the bobbin by the side of the time charging machine 30 widened, and it gave room.

As shown in FIG. 5, the protection member 114 includes a body case 120 between the body case 120 surrounding the power supply unit 80 and the safety loading device 90, and a cap 118 covering the electronic unit 100. Is fastened to the cap 118. The fastening method here is a threaded coupling method or a fitting coupling method. Those skilled in the art know that the fastening method between the cap 118 and the main body case 120 and the protective member 114 may exist in a variety of ways other than a threaded coupling method or a fitting coupling method.

The protective member 114 is preferably made of a material (for example, carbon steel) that can sufficiently withstand the reverse inertia force of tens of thousands of gravity acceleration (G). As a result, the protection member 114 has an induction charging part 40 and an amplification / filter excluding the installation space 110 and the induction coil L2 in which the induction coil L2 on the new tube side is installed from the backward inertia force generated when the shot is fired. The unit 70 is hybridized so that the installation space 115 installed can be maintained. In addition, the protective member 114 is made of a material that can withstand the reverse inertia force of the tens of thousands of gravity acceleration (G), induction coil (L2), induction coil (L2) installed in the narrow installation space (110, 115) The reliability of the induction charging unit 40 and the amplifying / filtering unit 70 is obtained.

Since the protection member 114 is firmly fixed, the signal processing part (that is, the remaining parts except the induction coil L2, the oscillation part 52, and the antenna 56 in the electronic part 100 of FIG. 4) on the substrate 130. It is possible to secure a sufficient installation space 115 that can be integrated. The substrate 130 is made of a metallic material, and a circuit pattern (not shown) is formed on both sides of the substrate 130. On the upper surface of the substrate 130, hybrid IC-induced charging unit 40 (except induction coil L2) and amplification / filter unit 70 are installed. The edge of the substrate 130 is coupled to the bottom of the protective member 114.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. You must see.

1 is a circuit diagram for explaining a time adjustment of a conventional proximity fuse.

2 is a view showing an example of a conventional proximity fuse.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a block diagram illustrating an internal configuration of a proximity fuse according to an embodiment of the present invention.

5 is a cross-sectional view of the proximity fuse according to an embodiment of the present invention.

FIG. 6 is a diagram illustrating a form in which the induction charging unit and the amplification / filter unit of FIG. 4 are hybridized and installed.

Description of the Related Art

30: time limiter 32: constant voltage generator

34: low pass filter 36: detector

38: reverse transfer switch 40: induction charging unit

42: induction time controller 44: memory

50: one-chip computer 52: oscillation unit

54: circulator 56: antenna

58: mixer 60: detector

62: target signal classification unit 64: noise signal removal unit

66, 74, 76, 82, 92, 98: And Gate

72: ignition circuit unit 90: safety loader

94: explosion sequence alignment unit 96: or gate

100: electronic unit 130: substrate

Claims (8)

A radio wave transceiver for transmitting and receiving radio waves for detecting a target; A time value inducing element installed at a predetermined distance apart from the radio wave transceiver and receiving a time value from a time input device through electromagnetic induction; An induction charging unit for charging a time value through the time value inducing element; And It includes an amplifier / filter unit for processing the signal sensed through the radio transceiver, The proximity fuse of the electromagnetic induction time-charging method characterized in that a metallic protective member is installed to protect the time-inducing element, the induction charging unit, and the amplification / filter unit from the inertial force caused by the shot. The method according to claim 1, The radio wave transceiver and the time value inducing element are protruded in front of the main body case of the proximity fuse, characterized in that covered by the cap coupled to the main body case electromagnetic induction time-filling proximity fuse. The method according to claim 1, The time value inducing element is a proximity fuse of the electromagnetic induction time-charging method, characterized in that consisting of induction coil. delete delete The method according to claim 1, Installation space is secured between the inner surface of the cap coupled to the main body case of the proximity fuse due to the protective member and one side of the protective member, The time-inducing element is a proximity fuse of the electromagnetic induction time-filling method, characterized in that installed in one side of the protective member via the insulating member in the installation space. The method according to claim 1, And said inductive charging unit and said amplifying / filtering unit are hybrid ICs, respectively. The method of claim 7, The hybrid IC-induced charging unit and the amplification / filter unit are installed on the upper surface of the substrate, a protective member is installed on the upper surface of the substrate, the installation space is secured between the protective member and the substrate, the hybrid IC The inductive charging unit and the amplification / filter unit is a proximity fuse of the electromagnetic induction time-charging method, characterized in that installed on the upper surface of the substrate in the installation space.

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