Blackbody equipment

Abstract

The utility model provides black body equipment, and relates to the field of infrared radiation measurement. The black body equipment comprises a shell, a surface source black body, a temperature controller and a power connector, the surface source black body, the temperature controller and the power connector are fixedly arranged in the shell, a radiation surface of the surface source black body and a radiation window of the shell are oppositely arranged, and a temperature adjusting interface of the temperature controller and a temperature adjusting window of the shell are oppositely arranged; the temperature controller is connected between the surface source black body and the power connector and is used for controlling the temperature of the radiating surface; the power connector is used for externally connecting a mobile power supply or a fixed power supply. The black body equipment does not comprise a power supply, but can be connected with an external power supply through the power supply connector, so that the weight and the size of the equipment are greatly reduced, the equipment is more convenient to carry, and the radiation area of the surface source black body can be properly expanded, so that the application range is expanded. When the black body equipment is connected with the mobile power supply for use, the black body equipment can be held by one hand, and the mobile power supply is held by the other hand. And the temperature controller can adjust the temperature of the surface source black body, so that the application range of the equipment can be further expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared radiation measurement, in particular to a blackbody device. Background Art

[0002] With the development of technology and the increase in demand, infrared imagers are increasingly used in military, civilian and industrial fields, such as: infrared seeker beyond-visual-range air-to-air missiles, tank infrared sights, infrared human body thermometers, infrared gas leak detection devices, etc.

[0003] However, the blackbody devices in the prior art have a complex structure, a relatively large size, poor portability, and are mainly used indoors, and cannot meet the needs of outdoor use. Utility Model Content

[0004] The purpose of the utility model is to provide a black body device to solve the technical problem of poor portability of black body devices in the prior art.

[0005] The blackbody device provided by the present invention includes a shell and a surface source blackbody fixedly arranged in the shell, a temperature controller and a power connector. The shell is provided with a radiation window and a temperature adjustment window. The radiation surface of the surface source blackbody is arranged opposite to the radiation window, and the temperature adjustment interface of the thermostat is arranged opposite to the temperature adjustment window; the thermostat is connected between the surface source blackbody and the power connector to control the temperature of the radiation surface; the power connector is used to connect to an external mobile power supply or a fixed power supply.

[0006] Furthermore, the surface source blackbody includes a surface source metal plate and at least one layer of heat-conducting metal plate, and the surface source metal plate and the adjacent heat-conducting metal plate and the two adjacent layers of heat-conducting metal plates are laminated and bonded by thermal double-sided tape; the back side of the heat-conducting metal plate farthest from the surface source metal plate is laminated and bonded to the heating film by the thermal double-sided tape, and the heating film is connected to the thermostat; the back side of the heating film is covered with back insulation material.

[0007] Furthermore, the heat-conducting metal plate has two layers, including a first metal plate and a second metal plate; the surface source metal plate and the first metal plate are laminated and bonded by a first double-sided tape, the first metal plate and the second metal plate are laminated and bonded by a second double-sided tape, and the second metal plate and the heating film are laminated and bonded by a third double-sided tape.

[0008] Furthermore, the surface source metal plate and the heat-conducting metal plate include aluminum plates, brass plates, pure magnesium plates or tungsten plates, wherein the aluminum plate is an aluminum alloy black anodized plate.

[0009] Furthermore, the surface of the surface source metal plate and the surface of the heat-conducting metal plate are both sandblasted surfaces.

[0010] Furthermore, the entire radiation surface of the surface source metal plate is provided with an array of microscopic cone structures protruding outward, and the radiation surface is sprayed with a high-radiation coating.

[0011] Furthermore, the back heat-insulating material includes an aerogel blanket.

[0012] Furthermore, the surface source metal plate, the heat-conducting metal plate, the heat-conducting double-sided tape, the heating film and the back-side thermal insulation material are stacked to form a stacked assembly, and the periphery of the stacked assembly is coated with edge-wrapped thermal insulation material.

[0013] Furthermore, the edge insulation material includes EVA (Ethylene Vinyl Acetate, polyvinyl alcohol) foam or thermal insulation ceramic fiberboard.

[0014] Furthermore, the thickness of the surface source metal plate and the thickness of the heat-conducting metal plate are both 0.3 to 1.5 mm; the thickness of the heat-conducting double-sided tape is 0.2 to 1.0 mm; the thickness of the heating film is 0.15 to 0.5 mm; the thickness of the back insulation material is 1 to 10 mm; and the thickness of the edge insulation material is 0.5 to 10 mm.

[0015] Furthermore, the shell includes a head, a neck and a hand-held part connected in sequence, the head has a first accommodating cavity, and the surface source blackbody is arranged in the first accommodating cavity; the neck has a second accommodating cavity, and the main body of the thermostat is arranged in the second accommodating cavity; the hand-held part has a third accommodating cavity, and the power connector is arranged in the third accommodating cavity; the second accommodating cavity is connected to the first accommodating cavity, and is used for passing the connecting wire between the thermostat and the surface source blackbody; the second accommodating cavity is also connected to the third accommodating cavity, and is used for passing the connecting wire between the thermostat and the power connector.

[0016] Furthermore, the shell includes a front shell and a rear shell, which are fixedly connected and enclose the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the passages between adjacent accommodating cavities, and the radiation window and the temperature adjustment window are both opened in the front shell.

[0017] Furthermore, a support rib is provided on the inner side of the rear shell, and the support rib abuts against the surface source blackbody.

[0018] Furthermore, the temperature controller includes a temperature measuring probe, a processing module and a relay. The temperature measuring probe is fixedly attached to the radiation surface. The output circuit of the relay is connected between the heating film of the surface source blackbody and the power connector. The processing module is used to receive the signal from the temperature measuring probe and post-process it to obtain the temperature of the radiation surface, and control the on and off of the output circuit of the relay according to the set target temperature range.

[0019] The blackbody device provided by the utility model can produce the following beneficial effects:

[0020] The blackbody device provided by the utility model houses a surface-source blackbody and a temperature controller within a housing. A power connector is also provided within the housing. While the blackbody device itself does not have a power source, it can be connected to an external mobile power source or fixed power source via the power connector. This significantly reduces the weight and volume of the device, making it more portable. Furthermore, the radiation area of ​​the surface-source blackbody can be appropriately expanded, thereby expanding its range of use. Furthermore, when connected to a mobile power source, the blackbody device can be held in one hand while the mobile power source is held in the other, effectively resolving the issues of heavy burdens when holding the device alone and the inconvenience of holding the device with both hands.

[0021] In addition, the blackbody device provided by the present invention has a temperature controller that can adjust the temperature of the surface source blackbody, thereby improving the measurement accuracy of the blackbody device in different temperature environments, thereby further expanding the scope of use of the blackbody device.

[0022] That is, the blackbody device provided by the utility model is not only easy to carry, but also easy to use and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of a blackbody device connected to an external mobile power supply according to an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a blackbody device provided in an embodiment of the present utility model;

[0026] Figure 3 A schematic diagram of the explosion structure of a blackbody device provided in an embodiment of the present utility model;

[0027] Figure 4A schematic diagram of the longitudinal structure of a blackbody device provided in an embodiment of the present utility model;

[0028] Figure 5 A schematic structural diagram of a surface source blackbody of a blackbody device provided in an embodiment of the present utility model;

[0029] Figure 6 A schematic diagram of the explosion structure of a surface source blackbody of a blackbody device provided in an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the longitudinal cross-section structure of the surface source blackbody of the blackbody device provided in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 100 - housing; 101 - head; 102 - neck; 103 - handheld part; 110 - front housing; 111 - radiation window; 112 - temperature control window; 120 - rear housing; 121 - support ribs; 180 - thermal insulation double-sided tape; 190 - screws;

[0033] 200 - surface source blackbody; 210 - surface source metal plate; 211 - radiation surface; 221 - first metal plate; 222 - second metal plate; 231 - first double-sided tape; 232 - second double-sided tape; 233 - third double-sided tape; 240 - heating film; 241 - power connection line; 250 - back insulation material; 260 - edge insulation material;

[0034] 300-thermostat; 310-temperature probe;

[0035] 400-power connector;

[0036] 500-Power bank. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] This embodiment provides a blackbody device, such as Figures 1 to 4As shown, the blackbody device includes a shell 100 and a surface source blackbody 200 fixedly arranged in the shell 100, a temperature controller 300 and a power connector 400. The shell 100 is provided with a radiation window 111 and a temperature adjustment window 112. The radiation surface 211 of the surface source blackbody 200 is arranged opposite to the radiation window 111, and the temperature adjustment interface of the temperature controller 300 is arranged opposite to the temperature adjustment window 112; the temperature controller 300 is connected between the surface source blackbody 200 and the power connector 400, and is used to control the temperature of the radiation surface 211; the power connector 400 is used to connect an external mobile power supply 500 or a fixed power supply.

[0039] The blackbody device provided in this embodiment houses the surface source blackbody 200 and the thermostat 300 within a housing 100. A power connector 400 is also provided within the housing 100. This allows the blackbody device to be connected to an external power bank 500 or fixed power source via the power connector 400, significantly reducing the weight and volume of the device, making it more portable. Furthermore, the radiation area of ​​the surface source blackbody 200 can be appropriately expanded, thereby expanding its range of use. Furthermore, when connected to the power bank 500, the blackbody device can be held in one hand while the power bank 500 is held in the other. This effectively resolves the issues of heavy weight when holding the device alone and the inconvenience of holding the device with both hands.

[0040] In addition, in the blackbody device provided in this embodiment, the temperature controller 300 can adjust the temperature of the surface source blackbody 200, thereby improving the measurement accuracy of the blackbody device in different temperature environments, thereby further expanding the scope of use of the blackbody device.

[0041] That is, the blackbody device provided in this embodiment is not only easy to carry, but also easy to use and has a wide range of applications.

[0042] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the housing 100 includes a head 101, a neck 102, and a handheld portion 103, which are connected in sequence. The head 101 has a first accommodating chamber, in which the surface source blackbody 200 is disposed; the neck 102 has a second accommodating chamber, in which the main body of the thermostat 300 is disposed; the handheld portion 103 has a third accommodating chamber, in which the power connector 400 is disposed; the second accommodating chamber communicates with the first accommodating chamber for passing connecting wires between the thermostat 300 and the surface source blackbody 200; the second accommodating chamber also communicates with the third accommodating chamber for passing connecting wires between the thermostat 300 and the power connector 400. In this configuration, the housing 100 provides good protection for the surface source blackbody 200, the thermostat 300, the power connector 400, and the like. Furthermore, the provision of the handheld portion 103 makes the blackbody device more convenient to hold in one hand.

[0043] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the housing 100 includes a front housing 110 and a rear housing 120, which are fixedly connected and enclose a first accommodating cavity, a second accommodating cavity, a third accommodating cavity, and passages between adjacent accommodating cavities. The radiation window 111 and the temperature adjustment window 112 are both provided in the front housing 110. More specifically, in this embodiment, the front housing 110 and the surface source blackbody 200 can be bonded and fixed by means of a thermally insulating double-sided tape 180, while the front housing 110 and the rear housing 120 can be first fastened together and then further fixed by means of fasteners, such as screws 190, to strengthen the connection.

[0044] Specifically, in this embodiment, continue as Figure 3 and Figure 4 As shown, the inner side of the rear shell 120 is provided with a support rib 121, and the support rib 121 abuts against the surface source black body 200. More specifically, as shown in FIG. Figure 3 As shown, the support ribs 121 are in a crisscross grid shape. With this arrangement, the support ribs 121 have more contact positions with the surface source blackbody 200 and a larger contact area, so that the rear housing 120 can better support the surface source blackbody 200.

[0045] Specifically, in this embodiment, the thermostat 300 includes a temperature probe 310, a processing module and a relay. The temperature probe 310 is fixedly attached to the radiation surface 211. The output circuit of the relay is connected between the heating film 240 of the surface source blackbody 200 and the power connector 400. The processing module is used to receive the signal of the temperature probe 310 and process it to obtain the temperature of the radiation surface 211, and control the on and off of the output circuit of the relay according to the set target temperature range. For example: if the target temperature range of the radiation surface 211 is set to 37°C to 43°C, the starting temperature for heating the radiation surface 211 is 37°C and the stopping temperature is 43°C; if the room temperature is 23°C, then after turning on the power supply-relay-surface source blackbody 200, the circuit is connected, and the radiation surface 211 of the surface source blackbody 200 begins to gradually heat up. When the temperature rises to 43°C, the processing module of the thermostat 300 receives the signal of the temperature probe 310 and processes it to obtain the temperature of the radiation surface 211, and then controls the relay to disconnect, and the power supply and the surface source blackbody are turned on. The circuit between the power supply and the surface source blackbody 200 is disconnected, and the surface source blackbody 200 begins to cool down. When the processing module reads that the temperature of the radiating surface 211 has dropped to 37°C, it controls the relay to close, reconnecting the circuit between the power supply and the surface source blackbody 200 and re-heating the radiating surface 211. When the temperature of the radiating surface 211 rises back to 43°C, the processing module controls the relay to close again, stopping heating. When the temperature of the radiating surface 211 drops to 37°C again, the processing module controls the relay to close again, re-heating the surface source blackbody 200. In other words, the thermostat 300 controls whether to heat the radiating surface 211 of the surface source blackbody 200 by continuously closing and opening the relay, ensuring that the temperature of the radiating surface 211 is within the set target temperature range. In actual use, the temperature of the radiating surface 211 can be more accurately controlled by reducing the difference between the start and stop temperatures of the thermostat 300.

[0046] More specifically, in this embodiment, Figure 3 As shown, the temperature measuring probe 310 can be adhered to the radiation surface 211 by means of a thermally conductive double-sided adhesive or other thermally conductive adhesive; further, the temperature measuring probe 310 can be adhered to the edge of the radiation surface 211, so as to obtain the real-time temperature of the radiation surface 211 without affecting the radiation function of the radiation surface 211.

[0047] Specifically, in this embodiment, Figures 5 to 7As shown, the surface source blackbody 200 includes a surface source metal plate 210 and at least one layer of heat-conducting metal plate. The surface source metal plate 210 is laminated and bonded to adjacent heat-conducting metal plates, as well as to adjacent layers of heat-conducting metal plates, via double-sided thermal tape. The back of the heat-conducting metal plate furthest from the surface source metal plate 210 is laminated and bonded to a heating film 240 via double-sided thermal tape, and the heating film 240 is connected to a thermostat 300. The back of the heating film 240 is coated with a back-side thermal insulation material 250. In this configuration, when the heating film 240 is powered on and heated, the vast majority of the heat is transferred layer by layer through the laminated structure formed by the double-sided thermal tape, the heat-conducting metal plate, and the surface source metal plate 210, ultimately transferring to the surface source metal plate 210. Only a small amount of heat is transferred to the outside world via the back-side thermal insulation material 250 and the surrounding area. As heat is transferred layer by layer, temperature uniformity continues to improve, significantly enhancing the temperature uniformity of the radiating surface 211 of the surface source metal plate 210, thereby improving detection accuracy. Furthermore, while maintaining accuracy, the size of the stacked structure, or the radiating area of ​​the radiating surface 211, can be increased, thereby further expanding the scope of application of the blackbody device provided by this embodiment.

[0048] Specifically, in this embodiment, the heating film 240 can be a heating film with its own power connection line 241. Furthermore, the heating film 240 can be a PI heating film, where PI film is the abbreviation of Polyimide Film, that is, polyimide film.

[0049] Specifically, in this embodiment, Figure 6 and Figure 7 As shown, the number of layers of heat-conducting metal plates is two, including a first metal plate 221 and a second metal plate 222; the surface source metal plate 210 and the first metal plate 221 are laminated and bonded by a first double-sided tape 231, the first metal plate 221 and the second metal plate 222 are laminated and bonded by a second double-sided tape 232, and the second metal plate 222 and the heating film 240 are laminated and bonded by a third double-sided tape 233. In this configuration, when the heating film 240 is powered on, it heats up, and the heat is transferred to the second metal plate 222 via the third double-sided tape 233. After the second metal plate 222 is heated, the heat is transferred to the first metal plate 221 via the second double-sided tape 232. After the first metal plate 221 is heated, the heat is transferred to the surface source metal plate 210 via the first double-sided tape 231. Of course, in other embodiments of the present application, the number of heat-conducting metal plates is not limited to two layers. For example, the number of heat-conducting metal plates can also be one or three layers, etc., as long as the temperature uniformity and detection accuracy requirements are met.

[0050] Specifically, in this embodiment, the surface source metal plate 210 and the heat-conducting metal plate include an aluminum plate, a brass plate, a pure magnesium plate, or a tungsten plate, wherein the aluminum plate is a black anodized aluminum alloy plate. Of course, in other embodiments of the present application, the surface source metal plate 210 and the heat-conducting metal plate may also be a brass plate, a pure magnesium plate, or a tungsten plate.

[0051] Specifically, in this embodiment, the surface of the surface source metal plate 210 and the surface of the heat-conducting metal plate are both sandblasted surfaces.

[0052] Specifically, in this embodiment, the entire radiating surface 211 of the surface source metal plate 210 is provided with an array of outwardly protruding microscopic pyramidal structures, such as pyramidal or conical structures. Furthermore, the radiating surface 211 is coated with a high-emissivity coating, such as Nextel Velvet 811-21. In other words, in this embodiment of the blackbody device, the surface source blackbody 200 improves the emissivity of the radiating surface 211 through both structural and coating aspects.

[0053] Specifically, in this embodiment, the back thermal insulation material 250 includes an aerogel blanket, which has an extremely low thermal conductivity of only 0.02W / m·K. The aerogel blanket is a porous material with a very low density and very high thermal insulation performance. It is easy to carry and use. At the same time, it has high fire resistance and can resist combustion at high temperatures. In short, the back thermal insulation material 250 can greatly reduce power consumption, and is also conducive to further improving the temperature uniformity of the surface source metal plate 210. It can also play a role in protecting the heating film 240, and the aerogel blanket can play a very good role in heat insulation and heat preservation, and can meet the needs very well. Of course, in other embodiments of the present application, the back thermal insulation material 250 is not limited to an aerogel blanket, but can also be other thermal insulation materials with good heat insulation and heat preservation effects and are portable.

[0054] Specifically, in this embodiment, the surface source metal plate 210, the heat-conducting metal plate, the heat-conducting double-sided tape, the heating film 240, and the back insulation material 250 are stacked to form a stacked assembly, and the periphery of the stacked assembly is coated with the edge insulation material 260. The edge insulation material 260 can effectively prevent heat from being transferred from the periphery to the outside. More specifically, as Figure 7 As shown, the edge insulation material 260 may have adhesive backing on one side, with a portion of the adhesive backing being adhered to the radiation surface 211 of the surface source metal plate 210 and then being turned 180° and adhered to the aerogel blanket.

[0055] Specifically, in this embodiment, the edge insulation material 260 comprises EVA foam, which has a low thermal conductivity of only 0.04 W / m·K. EVA foam offers advantages such as lightness, softness, durability, excellent cushioning and waterproof properties, chemical resistance, and a low price. Of course, in other embodiments of the present application, the edge insulation material 260 is not limited to EVA foam and can also be other insulation materials, such as insulating ceramic fiberboard.

[0056] Specifically, in this embodiment, the thickness of the surface source metal plate 210 and the heat-conducting metal plate are both 0.3 to 1.5 mm; the thickness of the thermally conductive double-sided tape is 0.2 to 1.0 mm; the thickness of the heating film 240 is 0.15 to 0.5 mm; the thickness of the back-side thermal insulation material 250 is 1 to 10 mm; and the thickness of the edge-wrapped thermal insulation material 260 is 0.5 to 10 mm. More specifically, the thickness of the surface source metal plate 210 and the heat-conducting metal plate can be 0.3 mm, 1.5 mm, or any value therebetween; the thickness of the thermally conductive double-sided tape can be 0.2 mm, 1.0 mm, or any value therebetween; the thickness of the heating film 240 can be 0.15 mm, 0.5 mm, or any value therebetween; the thickness of the back-side thermal insulation material 250 can be 1 mm, 10 mm, or any value therebetween; and the thickness of the edge-wrapped thermal insulation material 260 can be 0.5 mm, 10 mm, or any value therebetween. Preferably, the thickness of the surface source metal plate 210 and the heat-conducting metal plate is 0.5 mm; the thickness of the double-sided thermal tape is 0.3 mm; the thickness of the heating film 240 is 0.15 mm; the thickness of the back insulation material 250 is 3 mm; and the thickness of the edge insulation material 260 is 1 mm. With this configuration, the thickness of the entire surface source blackbody 200 is 7.55 mm, which is approximately 75% less than the 30 mm thickness of a conventional blackbody structure.

[0057] Specifically, in this embodiment, the thermally conductive double-sided adhesive tape may be made of a die-cuttable material with a thermal conductivity of 0.7 W / m·K.

[0058] Specifically, in this embodiment, due to the good temperature uniformity of the surface source metal plate 210, the entire surface source blackbody 200 can be larger to meet usage requirements. For example, the radiation surface of the surface source blackbody in the prior art is only 75mm x 75mm, which is relatively small. However, in this embodiment, the stacked assembly of the surface source blackbody 200 can be 200mm x 250mm, approximately eight times the size of the prior art. Excluding the area occupied by the edge foam or the outer frame of the front housing 110, the actual usable size can reach approximately 180mm x 230mm.

[0059] In summary, the blackbody device provided in this embodiment can flexibly choose the power supply mode as a mobile power supply 500 or a fixed power supply. When using the mobile power supply 500, mobile power supplies of different capacities can also be selected to meet the requirements according to the ambient temperature and duration of use. The reduction in the weight and volume of the device allows the radiation surface 211 of the surface source blackbody 200 to be increased. In this embodiment, the surface source blackbody 200 adopts a stacked structure, which can not only ensure heat transfer uniformity while increasing the radiation area, but also reduce the thickness of the device, and has excellent flexibility in use in infrared detection. In short, the blackbody device provided in this embodiment is portable, easy to use, light weight, small size, large radiation area, uniform radiation, accurate detection, and low cost.

[0060] Finally, it should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0061] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blackbody device, characterized in that: The invention comprises a shell (100), a surface source black body (200) fixedly arranged in the shell (100), a temperature controller (300) and a power connector (400); the shell (100) is provided with a radiation window (111) and a temperature adjustment window (112); the radiation surface (211) of the surface source black body (200) is arranged opposite to the radiation window (111); the temperature adjustment interface of the temperature controller (300) is arranged opposite to the temperature adjustment window (112); the temperature controller (300) is connected between the surface source black body (200) and the power connector (400) and is used to control the temperature of the radiation surface (211); the power connector (400) is used to be connected to an external mobile power supply (500) or a fixed power supply.

2. The blackbody device according to claim 1, wherein The surface source blackbody (200) comprises a surface source metal plate (210) and at least one layer of heat-conducting metal plate, wherein the surface source metal plate (210) and adjacent heat-conducting metal plates, as well as two adjacent layers of heat-conducting metal plates, are laminated and bonded by heat-conducting double-sided adhesive. The back surface of the heat-conducting metal plate farthest from the surface source metal plate (210) is laminated and bonded to the heating film (240) via the heat-conducting double-sided adhesive tape, and the heating film (240) is connected to the temperature controller (300); the back surface of the heating film (240) is coated with a back surface heat-insulating material (250).

3. The blackbody device according to claim 2, characterized in that The heat-conducting metal plate has two layers, including a first metal plate (221) and a second metal plate (222); the surface source metal plate (210) and the first metal plate (221) are laminated and bonded by a first double-sided tape (231), the first metal plate (221) and the second metal plate (222) are laminated and bonded by a second double-sided tape (232), and the second metal plate (222) and the heating film (240) are laminated and bonded by a third double-sided tape (233).

4. The blackbody device according to claim 2 or 3, characterized in that: The entire radiation surface (211) of the surface source metal plate (210) is provided with an array of microscopic cone structures protruding outward, and the radiation surface (211) is sprayed with a high-radiation coating.

5. The blackbody device according to claim 2 or 3, characterized in that: The surface source metal plate (210), the heat-conducting metal plate, the heat-conducting double-sided adhesive tape, the heating film (240), and the back-side heat-insulating material (250) are stacked to form a stacked assembly, and the periphery of the stacked assembly is coated with an edge-wrapped heat-insulating material (260).

6. The blackbody device according to claim 5, characterized in that The thickness of the surface source metal plate (210) and the thickness of the heat-conducting metal plate are both 0.3 to 1.5 mm; the thickness of the heat-conducting double-sided adhesive tape is 0.2 to 1.0 mm; the thickness of the heating film (240) is 0.15 to 0.5 mm; the thickness of the back heat-insulating material (250) is 1 to 10 mm; and the thickness of the edge heat-insulating material (260) is 0.5 to 10 mm.

7. The blackbody device according to any one of claims 1 to 3, characterized in that: The shell (100) comprises a head (101), a neck (102) and a handheld part (103) connected in sequence, wherein the head (101) has a first accommodating cavity, and the surface source black body (200) is arranged in the first accommodating cavity; the neck (102) has a second accommodating cavity, and the main body of the temperature controller (300) is arranged in the second accommodating cavity; the handheld part (103) has a third accommodating cavity, and the power connector (400) is arranged in the third accommodating cavity; the second accommodating cavity is communicated with the first accommodating cavity and is used for passing a connecting wire between the temperature controller (300) and the surface source black body (200); the second accommodating cavity is also communicated with the third accommodating cavity and is used for passing a connecting wire between the temperature controller (300) and the power connector (400).

8. The blackbody device according to claim 7, wherein: The housing (100) comprises a front housing (110) and a rear housing (120), which are fixedly connected and enclose the first accommodating cavity, the second accommodating cavity, the third accommodating cavity, and passages between adjacent accommodating cavities; the radiation window (111) and the temperature adjustment window (112) are both provided in the front housing (110).

9. The blackbody device according to claim 8, characterized in that A supporting rib (121) is provided on the inner side of the rear shell (120), and the supporting rib (121) abuts against the surface source blackbody (200).

10. The blackbody device according to any one of claims 1 to 3, characterized in that: The temperature controller (300) comprises a temperature measuring probe (310), a processing module and a relay. The temperature measuring probe (310) is fixedly attached to the radiation surface (211). The output circuit of the relay is connected between the heating film (240) of the surface source blackbody (200) and the power connector (400). The processing module is used to receive a signal from the temperature measuring probe (310), process the signal, and obtain the temperature of the radiation surface (211). The processing module controls the on / off state of the output circuit of the relay according to a set target temperature range.

Images