Portable thermal image target strip and frame-shaped target

Abstract

The invention provides a portable thermal image target strip and a frame-shaped target. The portable thermal image target strip comprises a heating area, a heat preservation and insulation area adjacent to the heating area, a left electrode, a right electrode, a power supply, a heat conduction layer and a bottom layer, wherein the left electrode and the right electrode are arranged at the two ends of the heating area; the power supply can be connected with the two electrodes respectively; the power supply comprises a power supply switching unit, a heat dissipation unit, a voltage transformation and stabilization unit, an electrical parameter monitoring unit and an output unit. Electric energy is converted into heat energy through the resistance heat effect of the carbon fiber filaments, stable infrared heat radiation is formed, and an infrared sighting device on the shooting emitter can effectively recognize a target in the dark environment. The power supply is low-voltage direct-current input, so that the applicability to the field environment is better; the radiation brightness of the infrared thermal imaging target can be adjusted at multiple gears, and the energy-saving performance and the adaptability of the infrared thermal imaging target can be effectively improved; the frame-shaped target and the single strip-shaped target are convenient to carry and rapid to install; the method has the advantages of low damage rate, sustainability, low consumption and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal radiation, and particularly to a portable thermal imaging target strip and a frame target. Background Art

[0002] During the night live-fire shooting training of troops, when using traditional aiming techniques, there are problems such as being unable to clearly see the target. In recent years, with the emergence of infrared aiming techniques, thermal imaging targets have effectively solved this problem. The target surface is designed as a heat source to form a thermal image different from the surrounding environment, and the infrared sight on the launcher is used to determine the specific position of live-fire shooting.

[0003] Currently, in the live-fire training of troops, surface-type targets are all used. Generally, methods such as electric blankets, charcoal fires baking the target cloth, or hanging burning barbecue charcoal stoves are selected to set night training targets. These types of target surfaces are relatively large. When the bullet clusters are relatively dense, they are easily hit, and after being damaged, they cannot be used again, with low economic applicability; even some target marks have relatively low radiation temperatures, resulting in problems such as difficulty in distinguishing the target from the training environment and low training efficiency. In addition, troops generally conduct training in the wild, and the target design should be portable, easy to install, and have good applicability to the wild environment. Therefore, we provide a portable thermal imaging target strip and a frame target, which are applicable to various environments such as dark nights, rain, snow, fog, and dust, and have the advantages of being portable, sustainable, low-consumption, and easy to install. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a portable thermal imaging target strip and a frame target to meet the needs of troops for night live-fire shooting training using thermal imagers in order to solve the problems existing in the above-mentioned prior art.

[0005] Its main technical solution is: a portable thermal imaging target strip, including a heating area, a heat insulation area, a heat conduction layer, electrodes provided at both ends of the heating area, and a power source that can be respectively connected to the two electrodes. The heating area is located between the heat insulation area and the heat conduction layer, and a bottom layer is attached to the outside of the heat insulation area.

[0006] Further, the heating area includes a carbon fiber heating layer, inner insulation layers and outer insulation layers attached to both sides of the carbon fiber heating layer, and wires provided on the outside of the inner insulation layer. The wires are arranged in parallel on the outside of the inner insulation layer, and the two ends of the wires are respectively connected to male (female) connectors to form left (right) side electrodes.

[0007] Further, the heat insulation area includes a heat insulation material, a toughness material, and an insulation layer, and the heat insulation material is located between the insulation layer and the toughness material.

[0008] Furthermore, the carbon fiber heating layer is composed of carbon fiber filaments arranged in an orderly manner. The wire is electrically connected to and tightly fixed at both ends of the carbon fiber filaments. The carbon fiber filaments have a specification of 24K, a tensile strength of 4900 MPa, a resistance of 18 Ω / m, an elongation rate of 2.1%, and a density of 1.80 g / cm3.

[0009] Furthermore, the wire is clamped between the inner insulating layer in the heating area and the insulating layer in the heat insulation area.

[0010] Furthermore, the thermal imaging target strip has a thickness of 2 - 5 cm, a width of 4 - 10 cm, and a length of 0.8 - 2 m. A hanging strap is arranged on the outer side of the bottom layer of the thermal imaging target strip, and the hanging strap is fixedly connected to the bottom layer and the heat insulation area. Multiple thermal imaging target strips are connected end to end through electrodes.

[0011] Furthermore, the power supply circuit includes:

[0012] A power supply switching unit for selecting and switching between mains input and battery input;

[0013] A heat dissipation unit for realizing the heat dissipation function of the power supply;

[0014] An electrical parameter monitoring unit for monitoring the output voltage, current, and power of the power supply;

[0015] An output unit, connected between the output end of the self - reset over - current protector and the electrodes of the thermal imaging target strip, and outputting low - voltage direct current of 45 - 75 V;

[0016] A voltage transformation and voltage stabilization unit. The voltage transformation and voltage stabilization unit includes a knob switch, a voltage transformation module, and a self - reset over - current protector. The input end of the knob switch is connected to the output end of the power supply switching unit. Each gear position of the output end of the knob switch is connected to the input end of a group of voltage transformation modules. The output ends of each group of voltage transformation modules are connected to the output unit after passing through the self - reset over - current protector.

[0017] And a thermal imaging frame - type target, including a mounting bracket and a portable thermal imaging target strip. The mounting bracket includes a surrounding frame and a support rod fixedly connected to the surrounding frame. The portable thermal imaging target strip is fixedly installed on the surrounding frame through a hanging strap. The heat - conducting layer is a heat - radiation surface. The adjustable range of the size of the surrounding frame is 1 - 1.5 m in height and 1 - 2.5 m in length. Multiple portable thermal imaging target strips are connected end to end through electrodes, and multiple portable thermal imaging target strips are connected in parallel to the circuit to simultaneously generate an infrared thermal effect and form a frame - type thermal imaging target.

[0018] The beneficial effects of the present invention are as follows:

[0019] Utilize the resistance heating effect of carbon fiber filaments to convert electrical energy into heat energy, forming stable far-infrared radiation, which facilitates shooters to observe and discover targets, and solves the problem of night shooting training targets for troops. The design of the present invention can achieve multi-level adjustment of the radiation brightness of the thermal imaging target, effectively improving its energy-saving performance and environmental adaptability, and having the advantages of being portable, sustainable, low-consumption, and easy to install. Brief Description of the Drawings

[0020] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objectives, and advantages of the present application will become more obvious:

[0021] Figure 1 It is a schematic structural diagram of the thermal imaging target strip in the embodiment of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the heating area of the thermal imaging target strip in the embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the heat insulation area of the thermal imaging target strip in the embodiment of the present invention;

[0024] Figure 4 It is a schematic side view of the thermal imaging target strip in the embodiment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of each unit in the power supply circuit in the embodiment of the present invention;

[0026] Figure 6 For Figure 5 It is a schematic structural diagram of the step-down and voltage-stabilizing unit part in

[0027] Figure 7 It is a schematic structural diagram of the thermal imaging target mounting bracket in the embodiment of the present invention;

[0028] Among them: 1. Heating area; 2. Heat insulation area; 3. Heat conduction layer; 4. Bottom layer; 5. Electrode; 6. Power supply; 7. Hanging strap; 8. Mounting bracket; 11. Carbon fiber heating layer; 12. Outer insulation layer; 13. Inner insulation layer; 14. Wire; 21. Insulation layer; 22. Heat insulation material; 23. Tough material; 61. Power supply switching unit; 62. Heat dissipation unit; 63. Step-down and voltage-stabilizing unit; 64. Electrical parameter monitoring unit; 65. Output unit; 631. Knob switch; 632. Self-resetting overcurrent protector; 81. Enclosure; 82. Support rod. Detailed Embodiments

[0029] The following further elaborates the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0030] It should be noted that, without conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] Embodiment:

[0032] Please refer to Figure 1 , a portable thermal imaging target strip, including a heating area 1, a heat insulation area 2, a heat conduction layer 3, a bottom layer 4, left and right electrodes 5 arranged at both ends of the heating area 1, and a power supply 6 that can be respectively connected to the two electrodes 5. The heating area 1 is located between the heat conduction layer 3 and the heat insulation area 2, and the bottom layer 4 is attached to the outside of the heat insulation area 2. The heating area 1 is used to convert the electrical energy provided by the power supply 6 into heat energy and transmit it outward in the form of far-infrared radiation.

[0033] Please refer to Figure 2 , the heating area 1 includes a carbon fiber heating layer 11, inner insulation layers 13 attached to both sides of the carbon fiber heating layer 11 and outer insulation layers 12, and two wires 14 arranged outside the inner insulation layer 13. The carbon fiber heating layer 11 is composed of carbon fiber filaments arranged orderly according to needs. The two wires 14 are respectively electrically connected and tightly fixed to the two ends of the carbon fiber filaments. The two wires 14 are arranged in parallel outside the inner insulation layer 13. The left ends of the two wires 14 are connected to a (female) male connector to form the left electrode 5, and the right ends of the two wires 14 are connected to a (male) female connector to form the right electrode 5;

[0034] Among them, in this embodiment, the specification of the carbon fiber filaments is 24K, the tensile strength is 4900 MPa, the resistance is 18 Ω / m, the elongation rate is 2.1%, and the density is 1.80 g / cm3;

[0035] For the convenience of attachment, the outer insulation layer 12 is a high-temperature-resistant insulating material with double-sided adhesiveness, including but not limited to Teflon pure film glue; the inner insulation layer 13 is a high-temperature-resistant insulating material with single-sided adhesiveness, including but not limited to Teflon, etc. The carbon fiber filaments are firmly attached between the outer insulation layer 12 and the inner insulation layer 13.

[0036] Please refer to Figure 3 , the heat insulation area 2 includes a heat insulation material 22, a ductile material 23, and an insulation layer 21. The heat insulation material 22 is located between the insulation layer 21 and the ductile material 23, and forms the heat insulation area 2 after being pressed.

[0037] The heat-insulating material 22 should have three functions of fire prevention and retardance, water repellency and moisture proofing, and heat preservation and heat insulation, and preferably have single-sided adhesiveness, including but not limited to nano-aerogel with aluminum foil adhesive, glass wool and its products, or rock wool, etc. The ductile material 23 should have strong tensile resistance, including but not limited to canvas, tarpaulin, etc. The insulating layer 21 should have two characteristics of high temperature resistance and insulation, and can have single-sided adhesiveness and can be closely attached to the inner side of the heat-insulating material 22.

[0038] In the embodiment of the present invention, the heat-conducting layer 3 is a light material with high temperature resistance and good heat conductivity, including but not limited to graphite heat spreader. The heat-conducting layer 3 can have single-sided adhesiveness and can be closely covered on the outer side of the outer insulating layer 12; the bottom layer 4 is an insulating material with high temperature resistance and oxidation resistance, including but not limited to Teflon, etc. The bottom layer 4 can have single-sided adhesiveness and can be closely attached to the outer side of the ductile material 23;

[0039] The two connecting wires 14 are sandwiched between the insulating layer 13 in the heating area and the insulating layer 21 in the heat-insulating area 2, and there is no short-circuit phenomenon between the two connecting wires 14.

[0040] In the embodiment of the present invention, when the power supply 6 is connected to the left electrode 5, the current flows from one end of the carbon fiber filament to the other end without short-circuit phenomenon; when the power supply 6 is connected to the right electrode 5, the current flows from one end of the carbon fiber filament to the other end without short-circuit phenomenon.

[0041] In the embodiment of the present invention, as Figure 4 shown, the size of the thermal imaging target strip can be designed according to needs. Generally, the thickness is (2 - 5) cm, the width is (4 - 10) cm, and the length is (0.8 - 2) m; a hanging strap 7 can be arranged on the outer side of the bottom layer 4 of the thermal imaging target strip according to needs, and the hanging strap is firmly connected to the bottom layer 4 and the heat-insulating area 2.

[0042] In the embodiment of the present invention, as Figure 5 shown, the power supply 6 includes:

[0043] A power supply switching unit 61 for making a switching selection between mains input and battery input;

[0044] A heat dissipation unit 62 for realizing the heat dissipation function of the power supply 6;

[0045] An electrical parameter monitoring unit 64 for monitoring the output voltage, current and power of the power supply;

[0046] An output unit 65, connected between the output end of the self-resetting overcurrent protector 632 and the thermal imaging target strip electrode 5, for outputting low-voltage direct current of (45 - 75) V to supply power to the thermal imaging target.

[0047] The voltage transformation and regulation unit 63, as shown in Figure 6 Figure, the voltage transformation and regulation unit 63 includes a rotary switch 631, a voltage transformation module, and a self-resetting overcurrent protector 632. The input end of the rotary switch 631 is connected to the output end of the power supply switching unit 61, and each gear position of the output end of the rotary switch 631 is connected to the input end of a group of the voltage transformation modules, so that each gear position corresponds to a voltage output value. After the output ends of the 3 groups of the voltage transformation modules pass through the self-resetting overcurrent protector 632, they are connected to the output unit.

[0048] Please refer to Figure 7 Figure, the thermal imaging frame target should also include a mounting bracket 8. The mounting bracket 8 includes a surrounding frame 81 and a support rod 82 fixedly connected to the surrounding frame 81; the size of the surrounding frame 81 is adjustable, generally with a height of (1 - 1.5) m and a length of (1 - 2.5) m.

[0049] In the embodiment of the present invention, for a portable thermal imaging target strip and a frame target, the thermal imaging target strip is fixedly installed on the surrounding frame 81 through a hanging strap 7, and the heat conduction layer 3 is a thermal radiation surface; the multiple thermal imaging target strips are connected end to end through the electrodes 5, and the multiple thermal imaging target strips can be connected in parallel to the circuit. After the power supply 6 is connected, a resistance heating effect is generated simultaneously to form a frame-shaped thermal imaging target.

[0050] In the embodiment of the present invention, the power supply 6 is preferably a low-voltage DC power supply with an output of (45 - 75) V. When used in the wild, there is no need to look for a power supply device, effectively improving the applicability of the thermal imaging target to the wild environment; the resistance of the heating area 1 can be designed according to the length of the target strip, generally (30 - 80) Ω, preferably with a target strip length of 1 m and a resistance of 40 Ω. The current passing through the carbon fiber wire is preferably (1.2 - 1.8) A, and the brightness temperature of the thermal imaging target strip is preferably (100 - 200) °C. The greater the output voltage of the power supply, the higher the radiation brightness temperature of the thermal imaging target strip, and the easier the target is to be recognized.

[0051] The design of the present invention can realize multi-gear adjustment of the radiation brightness of the thermal imaging target, effectively improving its energy saving and environmental adaptability; the unique internal circuit and electrode design of the thermal imaging target strip can realize the rapid parallel connection of multiple target strips to the circuit at the same time, which is convenient for installation; the design of the frame target has a low damage rate during live ammunition shooting and a high sustainable usage rate; the size of the target frame is adjustable, and the size of the target can be changed at any time according to the training needs of the troops.

[0052] In the embodiment of the present invention, a portable thermal imaging target strip and a frame target are designed, which have the advantages of being portable, adjustable brightness, adjustable target frame size, sustainable, low consumption, and easy installation.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inner side", "outer side", "middle", "left end", "right end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention; in the description of the present invention, the specification parameters of the materials used, the size and resistance of the thermal imaging target strip, the power supply output voltage range and the number of adjustable gears, etc. are only a preferred technical solution of this embodiment, and therefore should not be construed as a limitation to the present invention.

[0054] The above description is only a preferred embodiment of the present application and an explanation of the technical principles applied. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A portable thermal imaging target bar, comprising a heating area (1), a heat preservation and insulation area (2), a heat conductive layer (3), electrodes (5) arranged at both ends of the heating area (1), and a power source (6) respectively connected to the two electrodes (5), characterized in that: The heating area (1) is located between the thermal insulation area (2) and the heat conducting layer (3), and a bottom layer (4) is attached to the outer side of the thermal insulation area (2).

2. A portable thermal imaging target bar according to claim 1, characterized in that: The heating zone (1) comprises a carbon fiber heating layer (11), an inner insulating layer (13) and an outer insulating layer (12) attached to both sides of the carbon fiber heating layer (11), and a wire (14) arranged outside the inner insulating layer (13), wherein the wire (14) is arranged in parallel outside the inner insulating layer (13), and both ends of the wire (14) are respectively connected to a (female) male connector to form a left (right) side electrode (5).

3. The portable thermal imaging target bar according to claim 1, characterized in that: The thermal insulation area (2) comprises a thermal insulation material (22), a tough material (23) and an insulating layer (21), wherein the thermal insulation material (22) is located between the insulating layer (21) and the tough material (23).

4. The portable thermal imaging target bar according to claim 2, characterized in that: The carbon fiber heating layer (11) is composed of orderly arranged carbon fiber filaments, and the wire (4) is electrically connected to both ends of the carbon fiber filaments and tightly fixed. The specification of the carbon fiber filaments is 24K, the tensile strength is 4900MPa, the resistance is 18Ω / m, the elongation is 2.1%, and the density is 1.80g / cm3.

5. The portable thermal imaging target bar according to claim 2, characterized in that: The wire (14) is sandwiched between the inner insulating layer (13) of the heating area (1) and the insulating layer (21) of the thermal insulation area (2).

6. A portable thermal imaging target according to any one of claims 1 to 5, characterized in that: The thermal imaging target strip has a thickness of 2 to 5 cm, a width of 4 to 10 cm, and a length of 0.8 to 2 m. A hanging belt (7) is arranged outside the bottom layer (4) of the thermal imaging target strip, and the hanging belt (7) is fixedly connected to the bottom layer (4) and the heat preservation and insulation area (2). A plurality of the thermal imaging target strips are connected end to end via electrodes (5).

7. A portable thermal imaging target according to any one of claims 1 to 6, characterized in that: The power supply (6) circuit comprises: A power supply switching unit (61), used for switching between mains input and battery input; A heat dissipation unit (62), used to realize a heat dissipation function of the power source (6); An electrical parameter monitoring unit (64) for monitoring the output voltage, current and power of the power supply (6); An output unit (64) is connected between the output end of the self-resetting overcurrent protector (632) and the thermal imaging target electrode, and outputs a 45-75V low-voltage direct current; A voltage conversion and voltage stabilization unit (63), the voltage conversion and voltage stabilization unit (63) comprising a knob switch (631), a voltage conversion module and a self-resetting overcurrent protector (632), the input end of the knob switch (631) being connected to the output end of the power supply switching unit (61), each gear position of the output end of the knob switch (631) being connected to the input end of a group of the voltage conversion modules, and the output ends of the groups of voltage conversion modules being connected to the output unit via the self-resetting overcurrent protector (632).

8. A thermal imaging frame target, characterized in that: The invention comprises a mounting bracket (8) and a portable thermal imaging target bar as claimed in any one of claims 1 to 12, wherein the mounting bracket (8) comprises a surrounding frame (81) and a support rod (82) fixedly connected to the surrounding frame (81), the portable thermal imaging target bar is fixedly mounted on the surrounding frame (81) by a hanging strap (7), and the heat-conducting layer (3) is a heat radiation surface; the size of the surrounding frame (81) can be adjusted in the range of 1 to 1.5 m in height and 1 to 2.5 m in length.

9. A portable thermal imaging target bar and frame target according to claim 8, characterized in that: A plurality of the portable thermal imaging target bars are connected end to end via electrodes (5), and the plurality of portable thermal imaging target bars are connected in parallel to a circuit to form a frame-type thermal imaging target.

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