Rechargeable small infrared target

Abstract

The utility model belongs to the technical field of infrared imaging, and particularly relates to a rechargeable small infrared target. Comprising a target frame, an electric heating plate and an infrared radiation plate are installed on the front surface of an inner frame of the target frame, a target plate and a rear cover plate are installed on the front and rear surfaces of an outer frame of the target frame respectively, and a power supply and display control module is installed on the rear surface of the inner frame of the target frame; a rechargeable battery is arranged in the power source and display control module and supplies power to the electric heating plate, and the electric heating plate enables the infrared radiant panel to be heated. The target plate is provided with a hollow pattern, and the thermal infrared radiant panel which is heated and warmed up and the target plate jointly form a positive temperature difference infrared target with clear edges, so that a thermal imager can observe in a distance. The utility model has the beneficial effects that the infrared radiation contrast ratio meeting the imaging requirement of the thermal imager can be achieved with less power consumption; target patterns in the upper direction, the lower direction, the left direction and the right direction can be achieved through one target plate through simple operation.

Description

Technical Field

[0001] The utility model belongs to the field of infrared imaging, and in particular relates to a rechargeable small infrared target which can provide an observation target for a thermal imager in the field. Background Art

[0002] During the production, acceptance, use, and maintenance of thermal imagers, their imaging effects must be regularly inspected to confirm their functionality and whether their performance meets relevant technical requirements. The most direct inspection method is to use a thermal imager to observe an infrared target with a specific pattern and contrast at a certain distance. Traditional infrared targets are generally obtained through electrical or chemical heating. Due to issues such as heat source management and structural design, they often suffer from high energy consumption, inconvenience in portability, complex operation, and unstable infrared characteristics. With the development of battery technology, the power supply capacity, environmental adaptability, size, weight, and other characteristics of rechargeable batteries have been improved to a certain extent. Using battery power, reducing size, and lowering power consumption have become effective ways to optimize infrared targets. Summary of the Invention

[0003] Aiming at the actual demand of thermal imager application, the utility model proposes a rechargeable small infrared target with low power consumption, good portability and convenient field use.

[0004] The utility model is realized through the following technical measures: it comprises a target frame, wherein corner protectors are arranged at outer corners of the target frame; a target plate, a heat source mounting plate, a power supply and display control module, and a rear cover plate are sequentially arranged on four mounting planes of the target frame from front to back; an infrared radiation plate, an electric heating plate, and a heat insulation plate are sequentially stacked and arranged on the heat source mounting plate from front to back.

[0005] The target frame is the installation basis for all other mechanisms. It is a square structure made of lightweight and high-strength thermal insulation material, including an outer frame and an inner frame. The two sides of the inner frame are lower than the outer frame to form four installation planes.

[0006] The target plate is made of low-thermal-conductivity, high-strength sheet material, with dimensions consistent with the square shape of the target frame. A central hole is perforated in a pattern of defined shapes and sizes, with the hole area less than 30% of the total target area. Multiple target plates with different hole patterns can be used on a single target. The target plate is mounted on a flat mounting surface on the side of the outer frame, maintaining a certain distance from the infrared radiation panel. The outer surface of the target plate is frosted for a high infrared emissivity.

[0007] The corner guard is a long right-angled tough material with a certain thickness. The length is slightly larger than the thickness of the target frame. It is installed on the target frame, with both ends protruding from the front and rear surfaces of the target frame.

[0008] The heat source mounting plate is made of heat-resistant and heat-insulating rigid material, and has a shape and size matching with the inner frame of the target frame, and mounting holes for the infrared radiation plate and cable passing holes.

[0009] The infrared radiation plate is made of metal plate material with certain thickness and good heat conduction performance, and has a shape and size matching with the opening of the target plate and an area capable of completely covering the opening of the target plate.

[0010] The heat-insulating plate is made of heat-resistant and heat-insulating soft sheet material, and has a shape similar to the infrared radiation plate and a size slightly larger than the infrared radiation plate.

[0011] The electric heating plate is made of electric heating material with toughness, uniform heating, good stability and high heat efficiency, and has a shape similar to the infrared radiation plate and a size slightly smaller than the infrared radiation plate, so as to avoid the mounting holes at the edge of the infrared radiation plate.

[0012] The power supply and display control module comprises a battery, a charging, a display and a control function module, and has a cable passing through the heat source mounting plate and connected with the electric heating plate.

[0013] The rear cover plate is made of high-strength and light-weight material, and has openings on the rear cover plate matching the positions and shapes of the display screen, the control switch key and the charging port of the power supply and display control module.

[0014] Further, the target plate is made of white material, and the inner surface of the target plate is pasted with a high-infrared reflectivity film.

[0015] Further, the target frame has a side length controlled below 300 mm and a thickness close to 50 mm, so that the target has a smaller volume and weight, and is realized to be carried and operated by hand.

[0016] Further, the target plate and the target frame are installed by using a magnetic attraction mode and are positioned by a corner protruding edge.

[0017] The infrared radiation plate has a small radiation area, the contacted part is heat-insulating material, and is in a relatively closed environment, so that only a small power consumption can reach the infrared radiation intensity meeting the imaging requirement of the thermal imager. The power supply and display control module adopts a built-in charging battery for power supply, so that the target has no external connecting line in the working state, and is convenient for moving position and changing direction and the like. The target frame adopts a square shape, each side can be used as a mounting surface, one target plate can obtain target patterns in four directions, and the target frame provides convenient conditions for the thermal imager target recognition ability test. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the composition and structural relationship of the utility model.

[0019] Figure 2 This is a cross-sectional rendering of the utility model after assembly.

[0020] Figure 3 This is a schematic diagram of the magnetic installation structure of the target surface and target frame of the utility model.

[0021] In the figure: 1. target frame, 2. corner guard, 3. heat source mounting plate, 4. heat insulation plate, 5. electric heating plate, 6. infrared radiation plate, 7. target plate, 8. power supply and display control module, 9. rear cover. DETAILED DESCRIPTION

[0022] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the present invention will be described below through a specific implementation method in conjunction with the accompanying drawings.

[0023] Reference Figure 1 、 Figure 2 、 Figure 3 As shown, the utility model provides a rechargeable low-power small infrared target, including a target frame 1, a corner protector 2 installed at the outer corner of the target frame 1; a target plate 7, a heat source mounting plate 3, a power supply and display control module 8, and a rear cover plate 9 are sequentially installed on the four mounting planes of the target frame 1 from front to back; an infrared radiation plate 6, an electric heating plate 5, and a heat insulation plate 4 are sequentially stacked and installed on the heat source mounting plate from front to back.

[0024] The target frame 1 is a square structure, including an outer frame and an inner frame; the inner frame is close to the outer frame on all sides and lower than the outer frame on both sides; four installation planes are formed including the front and back of the outer frame and the front and back of the inner frame, and a certain number of threaded holes are processed on each installation plane and the surrounding sides for fixing related components.

[0025] The corner guards 2 are installed at the four outer corners of the target frame 1 . The length of the corner guards 2 slightly exceeds the width of the target frame 1 , and the parts protruding from the planes on both sides of the target frame 1 are used to limit the target plate 7 .

[0026] The heat source mounting plate 3 is mounted on a flat side of the inner frame, and a heat insulation plate 4, an electric heating plate 5, and an infrared radiation plate 6 are mounted in sequence on the outward side of the heat source mounting plate 3. To reduce heat loss and control power consumption, nylon screws with low thermal conductivity are used to tightly secure the heat insulation plate 4, the electric heating plate 5, and the infrared radiation plate 6 to the heat source mounting plate 3.

[0027] The target plate 7 is made of white, low-thermal-conductivity material, with a target pattern cut out in the center. Polished aluminum foil is applied to the inside to create a surface with high infrared reflectivity (low absorptivity). The target plate 7 is mounted on the side of the target frame 1's outer frame adjacent to the infrared radiation plate 6 via magnetic attraction. Ferromagnetic material 10 is embedded in the four corners of the target frame 1, and magnetic conductive sheets 11 are embedded in the corresponding corners of the target plate 7.

[0028] The power supply and display control module 8 includes a built-in battery module, a charging module, an output interface, a control module, a display module, and the like. The battery module has a capacity greater than 10,000 mAh. The charging module uses a standard TYPE-C interface. The control module has power-on, power-off, and power adjustment functions. The display module displays information such as the power-on and power-off status, battery charge, power supply, and the operating status of the heating plate. The power supply and display control module 8 is a multifunctional, integrated structure mounted on the mounting surface on the other side of the inner frame of the target frame. The inner frame of the target frame 1 is of sufficient thickness, and a certain distance is provided between the power supply and display control module 8 and the heat source mounting plate 3 to meet the space requirements of components such as power cords.

[0029] The rear cover 9 has a window, the position and shape of which match the charging port, display, switch button, etc. on the power supply and display control module 8. The rear cover 9 is installed on the rear side of the outer frame of the target frame 1, which not only partially seals the power supply and display control module 8, but also allows operations such as charging, control, and viewing displayed information.

[0030] When the specific embodiment of the present utility model is used, it is supported and placed stably with the corner guard 2, and the hollow opening of the target plate 7 is facing the thermal imager. After the power is turned on, the electric heating plate 5 is energized and heated. Due to the effect of the heat insulation material such as the heat insulation plate 4, the heat is mainly transferred to the infrared radiation plate 6. The infrared radiation plate 6 with good thermal conductivity will heat up quickly and evenly. The relatively closed space formed by the target frame 1 and the target plate 7 reduces the heat loss through convection. The infrared radiation plate 6 mainly dissipates heat in the form of infrared radiation through the hollow opening of the target plate 7. The higher the temperature, the faster the heat dissipation. Eventually, a state of heat absorption and heat dissipation equilibrium is reached, and the temperature is maintained constant. The higher the temperature of the infrared radiation plate 6 and the target plate 7 close to room temperature form a large temperature difference, so the infrared target can obtain a higher infrared radiation contrast with a smaller power consumption. When observing the infrared target with a thermal imager, a clear infrared target image can be seen. By judging the characteristics such as the target shape and direction, the imaging effect of the thermal imager can be conveniently tested.

[0031] The technical features not described in the present invention can be realized by existing technologies and will not be described in detail here. Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall also fall within the scope of protection of the present invention.

Claims

1. Rechargeable small infrared target, characterized by: The target frame comprises a target frame, an electric heating plate and an infrared radiation plate installed on the front surface of the inner frame of the target frame, a target plate and a rear cover plate respectively installed on the front and rear surfaces of the outer frame of the target frame, and a power supply and display control module installed on the rear surface of the inner frame of the target frame; the power supply and display control module has a built-in rechargeable battery to supply power to the electric heating plate, which heats up the infrared radiation plate; there is a hollow pattern on the target plate, and the target plate and the heated infrared radiation plate together constitute a positive temperature difference infrared target with clear edges.

2. The rechargeable small infrared target according to claim 1, characterized in that: The outer side length of the target frame is less than 300 mm, the thickness is close to 50 mm, and the opening area of ​​the hollow pattern of the target plate is less than 30% of the total area of ​​the target surface.

3. The rechargeable small infrared target according to claim 1, characterized in that: The target frame adopts a square shape, each side is a mounting bottom surface, and a target pattern has four orientation settings: up, down, left, and right.

4. The rechargeable small infrared target according to claim 1, characterized in that: The target plate is installed by using a multi-point magnet adsorption method.

5. The rechargeable small infrared target according to claim 1, characterized in that: The power supply and display control module adopts a built-in rechargeable battery power supply mode.

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