CN116164848A - Blackbody radiation source and heating device thereof - Google Patents

Abstract

The invention discloses a blackbody radiation source and a heating device thereof, wherein the blackbody radiation source comprises a heat conduction seat, a heat transfer seat and a blackbody radiation source which are sequentially stacked and installed, the heat conduction seat, the heat transfer seat and the blackbody radiation source are all sunken downwards, and the inner concave surface of the blackbody radiation source is a curved surface; the outer convex surface of the heat conduction seat is provided with a heating module, solid filling media capable of transferring heat are uniformly filled in a gap between the heat conduction seat and the blackbody radiation source, so that heat of the heating module can be uniformly transferred to the blackbody radiation source, and the blackbody radiation source is heated. The invention is used for the temperature measurement module to make a K scene, carries out heat transfer on the curved surface blackbody radiation source, realizes uniform heating on the curved surface blackbody, has stable heat transfer effect, and can effectively improve the K effect of the module.

Description

A blackbody radiation source and its heating device

technical field

The invention relates to the technical field of blackbody heating, in particular to a blackbody radiation source and a heating device thereof.

Background technique

Planar blackbody device The blackbody radiation source is a plane, which is generally used for modules with a small field of view as K. For modules with a large field of view, in order to prevent the module from collecting areas other than the blackbody radiation source, the blackbody radiation source needs to be The area increases several times, which greatly increases the volume and cost of the device, and the angle between the receiving angle at the edge of the field of view of the module and the normal direction of the radiation surface unit is too large, which will reduce the K effect of the module and affect the temperature measurement accuracy and imaging of the module Effect.

For large field of view modules that require high temperature measurement accuracy, the curved surface is usually a spherical surface, which can ensure that the angle between the receiving angle of the field of view and the normal direction of the radiating surface unit is consistent, which can greatly improve the module performance. K effect; however, the surface water bath type heat transfer medium is liquid, and the general material is a relatively stable and non-volatile liquid, such as dimethyl silicone oil. In order to ensure long-term use, the liquid needs to be strictly sealed between the blackbody radiation source and the heating body. During the heating of the liquid, the pressure in the confined space will gradually increase. In order to ensure product safety, the water bath type blackbody device often Limit the temperature of the liquid medium, that is, the working temperature of the water bath type blackbody is generally in the range of 10-120°. Continuing to increase the temperature and the increased pressure in the confined space will greatly increase the stability requirements of the product structure. Therefore, the price of the water bath type curved blackbody is extremely expensive.

Contents of the invention

In order to solve the problems existing in the prior art, the present invention provides a black body radiation source and its heating device, which is used in the K scene of the temperature measurement module, and conducts heat transfer to the black body radiation source on the curved surface, so as to realize the uniformity of the black body on the curved surface. Heating, the heat transfer effect is stable, which can effectively improve the K effect of the module.

The technical scheme for solving the problem of the present invention is to propose a blackbody radiation source, the blackbody radiation source has a concave structure, and the concave surface of the blackbody radiation source is a curved surface.

Further, the concave curved surface of the black body radiation source is a spherical surface, and the depth of the spherical surface is greater than the collection surface of the infrared module.

Further, the concave curved surface of the black body radiation source is an aspheric surface, and the depth of the aspheric surface is greater than the collection surface of the infrared module.

A heating device for a blackbody radiation source is also proposed, including the heating device for heating the above-mentioned blackbody radiation source, and the heating device includes a heat conduction seat and a heat transfer seat stacked in sequence, and the heat conduction seat and The heat transfer seats are all concave structures, and the blackbody radiation source is embedded in the concave structure of the heat transfer seats; The heat conduction seat, the heat transfer seat and the blackbody radiation source transfer heat.

Further, it also includes a shell, a cover plate that covers the upper port of the shell, the heat conduction seat is embedded in the port of the shell, and the cover plate covers the heat conduction seat, heat transfer seat and The extended frame of the black body radiation source; the middle part of the cover plate is provided with a perforation, and the perforation makes the inner concave surface of the black body radiation source open to the outside.

Further, there are multiple layers between the heat conduction seat, the heat transfer seat, and the black body radiation source to fill the gap of the solid heat transfer medium, and the filling medium in the gap close to the heat conduction seat is a flexible medium, The filling medium in the gap close to the black body radiation source is a granular medium.

Specifically, the gap includes a first filling gap and a second filling gap, the width of the gap is the same everywhere in the first filling gap, and the width of the gap is the same everywhere in the second filling gap.

Further, the inner diameter of the heat transfer seat is larger than the outer diameter of the heat transfer seat, so that when the heat transfer seat is embedded in the inner cavity of the heat transfer seat, a first gap is formed between the heat transfer seat and the heat transfer seat. Fill the void.

Further, the filling medium in the first filling gap is a flexible medium, so that the thermal contact between the heat conduction seat and the heat transfer seat can be fully achieved.

Further, the inner diameter of the heat transfer seat is larger than the outer diameter of the black body radiation source, so that when the black body radiation source is embedded in the inner cavity of the heat transfer seat, the gap between the heat transfer seat and the black body radiation source A second fill void is formed.

Further, the filling medium in the second filling void is a granular medium.

Further, the outer convex surface of the heat conduction seat is provided with a plurality of side cut surfaces along the circumference, the bottom of the heat conduction seat is provided with an undercut surface, and the plurality of side cut surfaces are evenly distributed around the undercut surface; the heating mold The set includes a first heating module and a second heating module, the first heating module is installed on the side cut surface opened in the circumferential direction, the second heating module is installed on the bottom cut surface, and the first heating module and the heating sheet of the second heating module are attached to the cut surface of the heat conduction seat.

Preferably, the outer edge of the heat transfer seat extends horizontally out of the heat transfer frame, the outer edge of the heat transfer seat extends horizontally out of the heat transfer frame, the heat transfer frame is fixedly installed on the heat transfer frame, and the heat transfer frame The frame can completely cover the upper port of the first filling gap, so that when the heat transfer seat is installed in the heat transfer seat, the first filling gap can be closed; the heat transfer seat is close to the heat transfer seat Filling holes are provided at the frame.

Preferably, the outer edge of the black body radiation source extends horizontally out of the fixed frame, and the heat transfer frame is provided with a groove for fitting and installing the fixed frame, so that the black body radiation source is installed on the heat transfer frame in position. When in the hot seat, the fixed frame can close the second filling void.

Preferably, the housing includes a front plate, a heat dissipation plate, a back plate, an operation panel, and a bottom plate, a heat dissipation fan is arranged on the heat dissipation plate, a relay and a switching power supply are arranged on the back plate, and a There is a control switch and a temperature control meter; a fuse is provided on the heat conduction frame of the heat conduction seat, and a temperature sensor is provided at the bottom of the heat conduction seat.

The beneficial effects of the present invention are:

The present invention is a black body radiation source and its heating device. The curved black body radiation source is heated through the heat conduction seat and the heat transfer seat, and the heat transfer is even. No matter how large the field of view of the module is, it will not collect areas other than the black body radiation source.

For large field of view modules with low temperature measurement accuracy, the curved surface of this application can be an aspheric surface. This can effectively reduce the size of the product in the thickness direction and reduce the size of the product while meeting the K requirements of the large field of view infrared module. size and cost.

The heating device of the present application can also choose to use filled solid medium between the heat conduction seat, heat transfer seat and curved surface black body radiation source, which greatly reduces the sealing requirements, and only needs to ensure that the solid medium does not overflow, which can effectively simplify the structure and reduce the Compared with the water bath heating method, it can effectively increase the upper limit of product temperature measurement. The long-term working temperature is in the range of 10-220°C, covering the current K requirements of infrared modules.

The blackbody radiation source and its heating device of the present application can compatiblely solve the actual demand of large field of view module acquisition range and the realistic problem of cost reduction.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings, like reference numerals are used to denote like elements. The drawings in the following description are some, but not all, embodiments of the present invention. Those skilled in the art can obtain other drawings based on these drawings without creative efforts.

Fig. 1 is the explosion diagram of the heating device of a kind of blackbody radiation source of the embodiment of the present invention;

Fig. 2 is a main body diagram of a heating device of a blackbody radiation source according to an embodiment of the present invention;

3 is a cross-sectional view of a heating device for a blackbody radiation source according to an embodiment of the present invention;

4 is a cross-sectional view of an external heating structure of a blackbody radiation source according to an embodiment of the present invention;

5 is a cross-sectional view of a heating module of a heating device for a blackbody radiation source according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of medium filling of a heating device of a blackbody radiation source according to an embodiment of the present invention;

Fig. 7 is a bottom view of a heating device of a blackbody radiation source according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a curved blackbody radiation source used in a module for K in an embodiment of the present invention;

FIG. 9 is a schematic diagram of a flat blackbody radiation source used in a module K according to an embodiment of the present invention.

In the figure: 1. Shell; 2. Heat conduction seat; 3. Heat transfer seat; 4. Black body radiation source; 5. Cover plate; 6. First heating module; 7. Second heating module; 8. First filling gap ; 9, the second filling gap; 10, infrared module; 11, positive plate; 12, cooling plate; 13, back plate; 14, operation plate; 15, bottom plate; 16, temperature sensor; 22. Bottom cut surface; 31. Filling hole; 61. Insulation plate; 62. Side heater; 63. Fixed plate; 71. Fixed plate; 72. Bottom heater; 121. Cooling fan; 131. Relay; 132. Switching power supply; 141. Control switch; 142. Temperature control meter head.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

First, please refer to Figure 9, which is a schematic diagram of a plane black body radiation source when K is performed on the module. The infrared module 10 can easily collect areas other than the black body radiation source, so the area requirements for the plane radiation source are relatively high. , which greatly increases the volume and cost of the device, and the angle between the receiving angle at the edge of the field of view of the module and the normal direction of the radiation surface unit is too large, which will reduce the K effect of the module and affect the temperature measurement accuracy and imaging effect of the module.

In order to solve the above problems, the present invention proposes a blackbody radiation source, please refer to FIG. 1-FIG. 7, the blackbody radiation source 4 is a concave structure, and the concave surface of the blackbody radiation source 4 is a curved surface. As a possible implementation, the concave curved surface of the black body radiation source 4 is a spherical surface, and the depth of the spherical surface is greater than the collection surface of the infrared module 10; as another possible implementation, the concave curved surface of the black body radiation source 4 is an aspherical surface , and the depth of the aspheric surface is greater than the collection surface of the infrared module 10 .

Based on the above-mentioned black body radiation source 4 with concave structure, the present invention also proposes a heating device for the black body radiation source, which is used to heat the black body radiation source 4 with a curved surface structure. The heat seat 3, the heat transfer seat 2 and the heat transfer seat 3 are all concave structures, and the black body radiation source 4 is embedded in the concave structure of the heat transfer seat 3; the outer convex surface of the heat transfer seat 2 is connected to the heating module, and the heating module The heat conduction seat 2, the heat transfer seat 3 and the blackbody radiation source 4 transfer heat sequentially.

In this application, the heat transfer seat 2, the heat transfer seat 3, and the blackbody radiation source 4 are all concave structures, wherein the blackbody radiation source 4 can be designed as a standard spherical concave structure according to actual needs, and the concave surface is a smooth curved surface. For large field of view modules that require high temperature measurement accuracy, the concave surface can be a spherical surface, which can ensure that the acceptance angle of the field of view angle is consistent with the normal angle of the radiation surface unit, and can greatly improve the K effect of the module. ; For large field of view modules with low temperature measurement accuracy, the concave surface can be an aspheric surface. On the premise of meeting the K requirements of large field of view modules, it can also effectively reduce the size of the product in the thickness direction and reduce the Product volume and cost.

It should be clear that Figure 8 is a schematic diagram of a curved blackbody radiation source provided by the present application when K is applied to the module. It can be seen from Figure 8 that as long as the depth of the curved surface exceeds the acquisition surface of the module, no matter how large the field angle of the module is , will not collect the area outside the black body radiation source. For the above two usage environments, whether the concave surface is spherical or aspherical, its depth should be greater than the collection surface of the infrared module 10; The area outside the black body radiation source 4.

In the embodiment of the present application, the curved surface is taken as an example of a standard spherical surface for illustration. Correspondingly, the main structure of the heat transfer seat 3 and the black body radiation source 4 is a concave hemispherical shell structure, and the heat transfer seat 2 is provided with a concave hemisphere The cavity is used to accommodate and install the heat transfer seat 3 in position, and the convex structure of the heat transfer seat 2 can be cut to facilitate the installation and fixing of a standard heating module.

In this application, there is a gap between the heat conduction seat 2 and the black body radiation source 4, the gap can be provided with multiple layers, and the gap can be filled with a solid filling medium capable of heat transfer, so that the heating module located on the outer convex surface of the heat conduction seat 2 The heat can be stably, effectively and uniformly transferred to the black body radiation source 4 , thereby heating the black body radiation source 4 .

Based on the stacked structure of the heat transfer seat 2, the heat transfer seat 3, and the black body radiation source 4 of the present application, the outer edge of the heat transfer seat 2 can extend horizontally out of the heat conduction frame, so as to facilitate the installation and fixing of the heat transfer seat 2; the outer edge of the heat transfer seat 3 The heat transfer frame can be extended horizontally, overlapped on the heat transfer frame and fixed, so that the heat transfer seat 3 can be installed in the heat transfer seat 2; The heat transfer frame is above and fixed, so that the black body radiation source 4 can be installed in the heat transfer seat 3 in position.

In a specific embodiment, the heat conduction seat 2 can be embedded and installed in the housing 1. The housing 1 is surrounded by four sides and has a bottom-sealed structure. The heat conduction seat 2 is embedded and installed from the upper port, and the heat conduction frame can be based on the upper port. The size of the heat conduction frame and the four side walls of the housing 1 can be fixedly installed through right-angle connectors.

Further, a cover plate 5 is provided at the upper port of the housing 1 to cover the frame area of the heat conduction seat 2 . Exemplarily, the periphery of the cover plate 5 can completely cover the extended frame covering the heat transfer seat 2, the heat transfer seat 3, and the black body radiation source 4; the middle part of the cover plate 5 is provided with perforations on the curved surface of the black body radiation source 4, which can be directed to The concave curved surface is displayed outside, so that the concave curved surface of the blackbody radiation source 4 can be directly opened to the outside. That is, insertion/extraction of the infrared module 10 can be performed directly.

Both the heat transfer seat 2 and the heat transfer seat 3, and the heat transfer seat 3 and the blackbody radiation source 4 all have the basic conditions for setting the above-mentioned gaps. Therefore, in the embodiments of this application, the gaps at these two places are used as examples for illustration. .

In a specific embodiment, the gap may include a first filling gap 8 and a second filling gap 9, the first filling gap 8 is located between the heat transfer seat 2 and the heat transfer seat 3, and the second filling gap 9 is located between the heat transfer seat 3 Between the black body radiation source 4. Preferably, the width of the gaps in the first filling gap 8 is the same, and the width of the gaps in the second filling gap 9 is the same.

Specifically, the inner diameter (concave size) of the heat transfer seat 2 is larger than the outer diameter (convex size) of the heat transfer seat 3. Taking the spherical shell structure as an example, the radius of the concave cavity of the heat transfer seat 2 is slightly larger than the convexity of the heat transfer seat 3. The radius of the structure is such that when the convex structure of the heat transfer seat 3 is aligned and embedded in the inner cavity of the heat transfer seat 2, a first filling gap 8 can be formed between the heat transfer seat 2 and the heat transfer seat 3, and the first filling gap 8 is filled with There is a solid fill medium capable of transferring heat.

The filling medium in the first filling gap 8 is a flexible medium, so that the thermal contact between the heat transfer seat 2 and the heat transfer seat 3 can be fully achieved. The flexible medium can include heat-conducting mud or colloidal silicone grease, etc., relying on the flexibility of the medium, it can ensure sufficient thermal contact between the heat-conducting seat 2 and the heat-transfer seat 3, and ensure a stable heat transfer effect.

Specifically, the inner diameter (concave size) of the heat transfer seat 3 is larger than the outer diameter (external convex size) of the blackbody radiation source 4. Taking the spherical shell structure as an example, the radius of the concave cavity of the heat transfer seat 3 is slightly larger than that of the blackbody radiation source 4. The radius of the convex structure is such that when the convex structure of the black body radiation source 4 is embedded in the concave cavity of the heat transfer seat 3, a second filling gap 9 can be formed between the heat transfer seat 3 and the black body radiation source 4, and the second Filling gap 9 is filled with a solid filling medium capable of conducting heat. The filling medium in the second filling gap 9 is a granular medium. The granular medium can include salt or sand, etc. This type of medium has excellent thermal insulation effect, and the fine granularity can ensure the uniformity of the contact between the filling medium and the blackbody radiation source 4, thereby ensuring the heat dissipation of the blackbody radiation source 4 surface (inner concave surface). Uniformity.

In this application, the filling gap can be closed by extending the frame, the heat transfer frame is fixedly installed on the heat conduction frame, and the heat transfer frame can completely cover the upper port of the first filling gap 8, so that the heat transfer seat 3 is installed on the heat conduction frame When inside the seat 2, the first filling space 8 can be closed. The outer edge of the black body radiation source 4 extends horizontally out of the fixed frame, and the heat transfer frame is provided with a groove for fitting and installing the fixed frame, so that when the black body radiation source 4 is installed in the heat transfer seat 3, the fixed frame can close the first 2. Fill the void 9.

Based on the distribution characteristics of filling gaps in the present application, the black body radiation source 4 can be fixed and installed with the heat transfer frame on the heat transfer seat 3 through the screw holes on the fixed frame to form a radiation assembly, and the heat transfer seat 3 is provided with a The filling hole 31 can be filled with a medium into the second filling gap 9 through the filling hole 31 , and the filling hole 31 can be closed after the filling is completed. The sealing method can be selected according to the actual situation, such as glue with plugging block, thread with plugging bolt and so on.

Before the radiation assembly and the heat conduction seat 2 are fixedly installed, a layer of flexible medium with uniform thickness can be radiated on the inner cavity of the heat conduction seat 2 , and then the radiation assembly is installed on the heat conduction seat 2 in position. It can be understood that both the heat transfer seat 1 and the heat transfer seat 3 can be made of cemented carbide, and when the flexible medium is filled, it can be pressed with an appropriate force to ensure that the flexible medium is evenly laid. Finally, the cover plate 5 can be covered, placed on the radiation assembly, and fixed and installed by screws.

Based on the stacking structure of this application, the heat transfer seat 2, the heat transfer seat 3, and the black body radiation source 4 can be installed in coaxial alignment, and the coaxial alignment can be realized through the positioning holes on the respective extension frames, so as to ensure that each The width inside the filled void is essentially the same. Exemplarily, the heat conduction frame can be fixedly installed with the housing 1 so as to maintain a horizontal posture; positioning holes are provided on the heat conduction frame to cooperate with the positioning holes on the heat transfer frame to realize the connection between the heat transfer seat 3 and the heat transfer seat 2 The alignment installation between them; an annular groove can be set on the heat transfer frame of the heat transfer seat 3, so that the fixed frame of the black body radiation source 4 can be installed with the groove, so as to realize the gap between the heat transfer seat 3 and the black body radiation source 4 counterpoint installation.

In this application, the heating source of the blackbody radiation source 4 is located on the outer convex surface of the heat conduction seat 2. In order to facilitate the efficient conduction of contact heat conduction, the curved outer convex surface is obviously not suitable for the current planar heating sheet structure. Therefore, this application In the embodiment of the application, the outer convex surface of the heat conduction seat 2 is cut to form multiple planar heating areas, so as to facilitate the use of planar heating sheets and provide good thermal contact and heat conduction.

In a specific embodiment, the outer convex surface of the heat transfer seat 2 is provided with a plurality of side cut surfaces 21 along the circumference, and the bottom is provided with an undercut surface 22, and the plurality of side cut surfaces 21 are evenly distributed around the undercut surface 22, as shown in Fig. 1 and Fig. As shown in Figure 7, the side cut surface 21 is in an inclined state, and the bottom cut surface 22 is in a horizontal state. The heating module is installed close to the cut surface, so that the heating sheet of the heating module can be fixedly installed on the cut surface, and the heat transfer effect is stable.

Exemplarily, the heating module may include a first heating module 6 and a second heating module 7 , wherein the first heating module 6 is fixedly installed on the side cut surface 21 , and the second heating module 7 is fixedly installed on the bottom cut surface 22 . The heating sheets of the first heating module 6 and the second heating module 7 are all attached to the cut surface of the heat conducting seat 2 .

Specifically, the first heating module 6 includes a fixed plate 63 attached to the side cut surface 21, a side heating sheet 62, and a heat insulating press plate 61. The upper end of the fixed plate 63 extends to the lower side of the heat conduction frame and is fixed. The lower end extends to the bottom cut surface 22 and is fixed. The fixed plate 63 is provided with an annular gap at the side cut surface 21. The side heating plate 62 has a ring structure, and the heat-insulating pressure plate 61 is fixedly installed on the outside of the fixed plate 63, so that the heat-insulated pressure plate 61 can The side heating sheet 62 is pressed into the notch so that it is in close contact with the side cut surface 21 . The lower side of the annular notch can be provided with a connecting wire interface, which is used for laying the wires of the heating plate 62 on the opposite side, and the heat insulation pressing plate 61 and the connecting wire interface do not interfere with each other.

The second heating module 7 includes a fixed pressing plate 71 and a bottom heating sheet 72 that are attached to the bottom cut surface 22. The bottom heating sheet 72 has a ring structure. 71 is fixed on the undercut surface 22 by screws, and does not conflict with the lower end of the fixing plate 63 .

It can be understood that the rated power and rated voltage of the side heater 62 and the bottom heater 72 may be the same, but there may be differences in size, which can be adjusted according to the actual size of the section. The heat-insulating press plate 61 and the fixed press plate 71 are high-temperature-resistant plastics, usually bakelite, which can work for a long time at a high temperature of 300°C. The poor thermal conductivity of plastics can reduce the heat loss of the heating sheet. The heating sheet can be a ceramic heating sheet, which is controlled by electricity to generate heat, and the connection method is to connect two wires to the circuit.

If necessary, the side heating fins 62 can be aligned and bonded to the weak parts of the circumferential structure of the heat conduction seat 2, so that the heat transfer efficiency is faster and the filling medium can be heated rapidly.

Based on actual needs, the shell 1 may include a front plate 11, a heat dissipation plate 12, a back plate 13, an operating plate 14, and a bottom plate 15, and the plates may be fixed and installed through right-angled connectors to form a box of the shell 1. formula structure. The heat dissipation plate 12 is provided with a heat dissipation fan 121, and the air outlet of the heat dissipation fan 121 communicates with the outside world; the backplane 13 is provided with a relay 131 and a switching power supply 132; 141 is embedded in the outer surface of the operation panel 14, and the display section of the temperature control meter 142 is located on the outer surface of the operation panel 14; a fuse 17 is arranged on the heat conduction frame of the heat conduction seat 2, and the fuse 17 is located inside the housing 1 to conduct heat. The bottom of the seat 2 is provided with a temperature sensor 16, which is electrically connected to the temperature control meter 142, so that the temperature control meter 142 can process the feedback parameters of the temperature sensor 16 and display the corresponding temperature parameters.

In the embodiment of the present application, the granular filling medium is used in the second filling gap 9, and when heated, the effect of thermal expansion can be eliminated in the second filling gap 9 without causing structural damage to the black body radiation source 4. , the integrity of the surface can be effectively guaranteed. If necessary, the surface of the blackbody radiation source 4 can be sandblasted and black anodized to eliminate the influence of light reflection on the K of the module.

The content described above can be implemented alone or combined in various ways, and these variants are all within the protection scope of the present invention.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a" does not preclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific embodiments of the present invention are limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (10)

1. A blackbody radiation source, characterized in that the blackbody radiation source (4) is a concave structure, and the concave surface of the blackbody radiation source (4) is a curved surface. 2. A kind of black body radiation source according to claim 1, it is characterized in that, the concave curved surface of described black body radiation source (4) is spherical surface, and the depth of described spherical surface is greater than the collection surface of infrared module (10) . 3. A blackbody radiation source according to claim 1, characterized in that, the concave curved surface of the blackbody radiation source (4) is an aspheric surface, and the depth of the aspheric surface is greater than that of the infrared module (10) collection surface. 4. A heating device for a black body radiation source, characterized in that, the heating device is used to heat the black body radiation source according to claim 1, and the heating device comprises heat conduction seats (2) stacked in sequence 1. Heat transfer seat (3), both of the heat transfer seat (2) and the heat transfer seat (3) have a concave structure, and the black body radiation source (4) is embedded in the heat transfer seat (3) In the concave structure; the outer convex surface of the heat conduction seat (2) is connected to the heating module, and the heating module sequentially supplies the heat conduction seat (2), the heat transfer seat (3) and the black body radiation source (4) transfer heat. 5. The heating device of a kind of blackbody radiation source according to claim 4, is characterized in that, also comprises housing (1), cover plate (5) that covers the upper port of described housing (1), so The heat conduction seat (2) is embedded in the port of the housing (1), and the cover plate (5) covers the heat conduction seat (2), the heat transfer seat (3) and the black body radiation source (4). The frame is extended; the middle part of the cover plate (5) is provided with a perforation, and the perforation makes the inner concave surface of the black body radiation source (4) open to the outside. 6. The heating device of a kind of black body radiation source according to claim 4, characterized in that, the heat transfer seat (2), the heat transfer seat (3) and the black body radiation source (4) are arranged between There are gaps, and the gaps include a first filling gap (8) and a second filling gap (9), the gap widths in the first filling gap (8) are the same everywhere, and in the second filling gap (9) The gap width is the same everywhere. 7. The heating device of a black body radiation source according to claim 5, characterized in that, the inner diameter of the heat transfer seat (2) is greater than the outer diameter of the heat transfer seat (3), so that the heat transfer seat (3) When embedded in the inner cavity of the heat conduction seat (2), a first filling gap (8) is formed between the heat conduction seat (2) and the heat transfer seat (3). 8. The heating device of a blackbody radiation source according to claim 7, characterized in that, the first filling gap (8) is filled with a flexible medium, so that the heat transfer seat (2) and the heat transfer seat (3) Thermal contact between them. 9. The heating device of a blackbody radiation source according to claim 5, characterized in that, the inner diameter of the heat transfer seat (3) is greater than the outer diameter of the blackbody radiation source (4), so that the blackbody radiates When the source (4) is embedded in the inner cavity of the heat transfer seat (3), a second filling gap (9) is formed between the heat transfer seat (3) and the black body radiation source (4); the second The filling medium in the filling gap (9) is a granular medium. 10. The heating device of a blackbody radiation source according to claim 4, characterized in that, the outer convex surface of the heat conduction seat (2) is provided with a plurality of side cut surfaces (21) along the circumference, and the heat conduction seat The bottom of (2) has an undercut surface (22), and a plurality of side cut surfaces (21) are evenly distributed around the undercut surface (22); the heating module includes a first heating module (6) and a second heating module. Module (7), the first heating module (6) is installed on the side cut surface (21) opened in the circumferential direction, and the second heating module (7) is installed on the bottom cut surface (22), so Both the heating sheets of the first heating module (6) and the second heating module (7) are attached to the cut surface of the heat conducting seat (2).

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