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

Blackbody radiation source and heating device thereof

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

The plane blackbody device blackbody radiation source is a plane, is generally used for a module with a smaller visual field to do K, and for a module with a larger visual field, in order to prevent the module from collecting areas outside the blackbody radiation source, the area of the blackbody radiation source needs to be increased by a plurality of times, the volume and the cost of the device are greatly increased, and the receiving angle at the edge of the visual field of the module and the normal angle of a radiation surface unit are too large, so that the K effect of the module can be reduced, and the temperature measurement precision and the imaging effect of the module are influenced.

For a large-view-field module with higher temperature measurement precision requirement, the curved surface is a spherical surface, the spherical surface can ensure that the consistency of the receiving angle of the view field angle and the normal included angle of the radiation surface unit is better, and the K effect of the module can be greatly improved; however, the curved water bath type heat conducting medium is liquid, and the material is generally stable and less volatile liquid, such as dimethyl silicone oil. In order to ensure long-term use, the blackbody radiation source and the heating body need to be tightly sealed, the pressure of the closed space can be gradually increased in the process of heating the liquid, and in order to ensure the safety performance of the product, the water bath type blackbody device often limits the temperature of a liquid medium, namely the working temperature of the water bath type blackbody is generally within a range of 10-120 degrees. The temperature is continuously increased, the pressure of the closed space is increased, and the stability requirement on the product structure is greatly improved, so that the price of the water bath type curved black body is extremely high.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the blackbody radiation source and the heating device thereof, which are used for taking a temperature measuring module as a K scene, carrying out heat transfer on the blackbody radiation source with a curved surface, realizing uniform heating on the curved surface blackbody, having stable heat transfer effect and effectively improving the K effect of the module.

The technical scheme for solving the problem is that the blackbody radiation source is provided, the blackbody radiation source is of a concave structure, and the concave surface of the blackbody radiation source is a curved surface.

Further, the concave curved surface of the blackbody radiation source is a spherical surface, and the depth of the spherical surface is greater than the acquisition surface of the infrared module.

Further, the concave curved surface of the blackbody radiation source is an aspheric surface, and the depth of the aspheric surface is greater than the acquisition surface of the infrared module.

The heating device comprises a heat conduction seat and a heat transfer seat which are sequentially stacked and installed, wherein the heat conduction seat and the heat transfer seat are of concave structures, and the blackbody radiation source is embedded and installed in the concave structures of the heat transfer seat; the heating module is connected to the outer convex surface of heat conduction seat, the heating module is in proper order to the heat conduction seat the heat transfer seat with the blackbody radiation source transmits heat.

Further, the black body radiation source heat conducting device also comprises a shell and a cover plate covered on the upper port of the shell, wherein the heat conducting seat is embedded into the port of the shell, and the periphery of the cover plate covers the heat conducting seat, the heat conducting seat and the extending frame of the black body radiation source; and a perforation is formed in the middle of the cover plate, and the perforation enables the inner concave surface of the blackbody radiation source to be open to the outside.

Furthermore, a plurality of layers of gaps for filling solid heat transfer media are arranged among the heat conduction seat, the heat transfer seat and the blackbody radiation source, the filling media in the gaps close to the heat conduction seat are flexible media, and the filling media in the gaps close to the blackbody radiation source are granular media.

Specifically, the gap comprises a first filling gap and a second filling gap, the gap widths of all the parts in the first filling gap are the same, and the gap widths of all the parts in the second filling gap are the same.

Further, the inner diameter of the heat conducting seat is larger than the outer diameter of the heat conducting seat, so that when the heat conducting seat is embedded into the inner cavity of the heat conducting seat, a first filling gap is formed between the heat conducting seat and the heat conducting seat.

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

Further, the inner diameter of the heat transfer seat is larger than the outer diameter of the blackbody radiation source, so that a second filling gap is formed between the heat transfer seat and the blackbody radiation source when the blackbody radiation source is embedded into the inner cavity of the heat transfer seat.

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

Further, a plurality of side sections are formed in the outer convex surface of the heat conducting seat along the circumferential direction, a bottom section is formed in the bottom of the heat conducting seat, and the side sections are uniformly distributed around the undercut surface; the heating module comprises a first heating module and a second heating module, the first heating module is arranged on the side section which is circumferentially arranged, the second heating module is arranged on the bottom section, and heating sheets of the first heating module and the second heating module are attached to the section of the heat conducting seat.

Preferably, the outer edge of the heat conducting seat horizontally extends out of a heat conducting frame, the heat conducting frame is fixedly arranged on the heat conducting frame, and the heat conducting frame can completely cover the upper port of the first filling gap, so that the heat conducting seat can seal the first filling gap when being arranged in the heat conducting seat; and a filling hole is formed in the position, close to the heat transfer frame, of the heat transfer seat.

Preferably, the outer edge of the blackbody radiation source horizontally extends out of the fixed frame, and a groove for embedding and installing the fixed frame is formed in the heat transfer frame, so that the fixed frame can seal the second filling gap when the blackbody radiation source is arranged in the heat transfer seat in an aligned mode.

Preferably, the shell comprises a positive plate, a heat radiation plate, a back plate, an operation plate and a bottom plate, wherein the heat radiation plate is provided with a heat radiation fan, the back plate is provided with a relay and a switch power supply, and the operation plate is provided with a control switch and a temperature control gauge head; the heat conduction frame of heat conduction seat is provided with the fuse, the bottom of heat conduction seat is provided with temperature sensor.

The beneficial effects of the invention are as follows:

the invention relates to a blackbody radiation source and a heating device thereof, wherein the blackbody radiation source is heated through a heat conduction seat and a heat conduction seat, and heat transfer is uniform, so long as the depth of a curved surface of the blackbody radiation source exceeds the acquisition surface of an infrared module, no matter how large the angle of view of the infrared module is, the area outside the blackbody radiation source can not be acquired.

For the big visual field module that temperature measurement precision is not so high, the curved surface of this application can be the aspherical, is satisfying the infrared module of big visual field like this and does the prerequisite of K demand, can effectively reduce the size of product thickness direction, reduces product volume and cost.

The heating device can also adopt to fill solid medium between heat conduction seat, heat transfer seat and curved surface blackbody radiation source, greatly reduced leakproofness requirement, only need guarantee solid medium not excessive can, can effectively simplify the structure, reduce cost, for the heating method of water bath formula, can effectively improve product temperature measurement upper limit. The long-term working temperature is between 10 and 220 ℃, which covers the K-making requirement of the current infrared module.

The blackbody radiation source and the heating device thereof can be compatible to solve the practical requirement of overlarge collection range of the large-view-field module and the practical problem of reducing cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate 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 identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the invention. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.

FIG. 1 is an exploded view of a heating device of a blackbody radiation source according to an embodiment of the invention;

FIG. 2 is a schematic diagram of a heating device of a blackbody radiation source according to an embodiment of the invention;

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

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

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

FIG. 6 is a schematic illustration of a dielectric fill of a heating device of a blackbody radiation source according to an embodiment of the invention;

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

FIG. 8 is a schematic diagram of a curved blackbody radiation source for modular K according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a planar blackbody radiation source for use in K-module according to an embodiment of the present invention.

In the figure: 1. a housing; 2. a heat conduction seat; 3. a heat transfer base; 4. a blackbody radiation source; 5. a cover plate; 6. a first heating module; 7. a second heating module; 8. a first filling void; 9. second filling the void; 10. an infrared module; 11. a positive plate; 12. a heat dissipation plate; 13. a back plate; 14. an operation panel; 15. a bottom plate; 16. a temperature sensor; 17. a fuse; 21. a side section; 22. cutting the bottom; 31. filling the hole; 61. a heat insulating pressure plate; 62. a side heating sheet; 63. a fixing plate; 71. a fixed pressing plate; 72. a bottom heating sheet; 121. a heat radiation fan; 131. a relay; 132. a switching power supply; 141. a control switch; 142. a temperature control gauge outfit.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Firstly, referring to fig. 9, a schematic diagram of a planar blackbody radiation source when a module is K-rayed is shown, the infrared module 10 can easily collect the area outside the blackbody radiation source, so that the area requirement on the planar radiation source is high, the volume and cost of the device are greatly increased, and the receiving angle at the edge of the module field of view and the normal angle of the radiation surface unit are too large, so that the K effect of the module is reduced, and the temperature measurement accuracy and imaging effect of the module are affected.

In order to solve the above-mentioned problems, the present invention provides a blackbody radiation source, referring to fig. 1-7, the blackbody radiation source 4 has a concave structure, and the concave surface of the blackbody radiation source 4 is a curved surface. As an implementation manner, the concave curved surface of the blackbody radiation source 4 is a spherical surface, and the depth of the spherical surface is greater than the acquisition surface of the infrared module 10; as another embodiment, the concave curved surface of the blackbody radiation source 4 is an aspheric surface, and the depth of the aspheric surface is greater than the collecting surface of the infrared module 10.

Based on the above-mentioned concave structural blackbody radiation source 4, the invention also provides a heating device of the blackbody radiation source, which is used for heating the blackbody radiation source 4 with a curved surface structure, and comprises a heat conduction seat 2 and a heat transfer seat 3 which are sequentially stacked and installed, wherein the heat conduction seat 2 and the heat transfer seat 3 are both concave structures, and the blackbody radiation source 4 is embedded and installed in the concave structure of the heat transfer seat 3; the outer convex surface of the heat conduction seat 2 is connected with a heating module, and the heating module sequentially transmits heat to the heat conduction seat 2, the heat transmission seat 3 and the blackbody radiation source 4.

In this application, heat conduction seat 2, heat transfer seat 3, blackbody radiation source 4 are indent structure, and wherein, blackbody radiation source 4 can design into standard sphere concave structure according to actual demand, and the indent is smooth curved surface. For a large-view-field module with higher temperature measurement precision requirement, the concave curved surface can be a spherical surface, so that the consistency of the receiving angle of the view field angle and the normal included angle of the radiation surface unit is better, and the K effect of the module can be greatly improved; for a large-view-field module with low temperature measurement precision, the concave curved surface can be an aspheric surface, and the size of the product in the thickness direction can be effectively reduced on the premise of meeting the K requirement of the large-view-field module, so that the product volume and cost are reduced.

It should be clear that, fig. 8 is a schematic diagram of the curved surface blackbody radiation source provided in the present application when the module is K, and as long as the curved surface depth exceeds the collection surface of the module, no matter how large the field angle of the module is, the area outside the blackbody radiation source will not be collected. For the two use environments, the depth of the concave curved surface, whether the concave curved surface is a spherical surface or an aspherical surface, is larger than the collecting surface of the infrared module 10; at this time, no matter how large the angle of view of the infrared module 10 is, no region other than the blackbody radiation source 4 is collected.

In the embodiment of the application, the curved surface is taken as a standard spherical surface for illustration and display, the main structures of the heat transfer seat 3 and the blackbody radiation source 4 are concave hemispherical shell structures, the heat conduction seat 2 is provided with a concave hemispherical cavity for accommodating the heat transfer seat 3 in a contraposition manner, and the convex structure of the heat conduction seat 2 can be used for cutting so as to conveniently install and fix a standard heating module.

In this application, be provided with the clearance between heat conduction seat 2 and the blackbody radiation source 4, the clearance can set up the multilayer, can fill the solid-state filling medium that can transfer heat in the clearance for the heat of the heating module that is located on the outer convex surface of heat conduction seat 2 can be stable effective even transfer to blackbody radiation source 4, thereby heating blackbody radiation source 4.

Based on the stacked structure of the heat conduction seat 2, the heat transfer seat 3 and the blackbody radiation source 4, the outer edge of the heat conduction seat 2 can horizontally extend out of the heat conduction frame so as to facilitate the installation and fixation of the heat conduction seat 2; the outer edge of the heat transfer seat 3 can horizontally extend out of the heat transfer frame, and is lapped on the heat transfer frame and fixed, so that the heat transfer seat 3 can be arranged in the heat transfer seat 2 in an aligned manner; the outer edge of the blackbody radiation source 4 may extend horizontally out of the fixed frame, overlap over the heat transfer frame, and be fixed, so that the blackbody radiation source 4 can be installed in the heat transfer seat 3 in an aligned manner.

In a specific embodiment, the heat conducting seat 2 can be embedded in the shell 1, the shell 1 is of a structure with four surrounding surfaces and a bottom sealing surface, the heat conducting seat 2 is embedded by an upper port, and the heat conducting frame can be matched and designed based on the size of the upper port, so that the heat conducting frame and the four side walls of the shell 1 can be fixedly installed through right-angle connectors.

Further, a cover plate 5 is disposed at the upper port of the housing 1 for covering the frame area of the heat conducting base 2. The periphery of the cover plate 5 can be completely covered with the extension frames of the heat conduction seat 2, the heat transfer seat 3 and the blackbody radiation source 4; the middle part of the cover plate 5 is provided with perforations on the curved surface of the blackbody radiation source 4, so that the concave curved surface of the blackbody radiation source 4 can be outwards displayed, and the concave curved surface of the blackbody radiation source 4 can be directly opened. That is, the insertion/extraction of the infrared module 10 can be directly performed.

The basic conditions for providing the above-mentioned gaps are provided between the heat conduction seat 2 and the heat conduction seat 3, and between the heat conduction seat 3 and the blackbody radiation source 4, and thus, in the embodiment of the present application, the two gaps are provided as examples for illustration.

In a specific embodiment, the gap may include a first filled void 8, a second filled void 9, the first filled void 8 being located between the heat conducting base 2 and the heat transfer base 3, the second filled void 9 being located between the heat transfer base 3 and the blackbody radiation source 4. Preferably, the void widths are the same throughout the first filled voids 8 and the void widths are the same throughout the second filled voids 9.

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

The filling medium in the first filling void 8 is a flexible medium enabling a sufficient thermal contact between the heat conducting base 2 and the heat transfer base 3. The flexible medium can comprise heat conducting mud or colloidal silicone grease and the like, and the sufficient thermal contact between the heat conducting seat 2 and the heat conducting seat 3 can be ensured by virtue of the flexible characteristic of the medium, so that the heat transfer effect is ensured to be stable.

Specifically, the inner diameter (concave size) of the heat transfer seat 3 is larger than the outer diameter (convex size) of the blackbody radiation source 4, taking a spherical shell structure as an example, the radius of the concave cavity of the heat transfer seat 3 is slightly larger than the radius of the convex structure of the blackbody radiation source 4, so that when the convex structure of the blackbody radiation source 4 is aligned and embedded into 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 blackbody radiation source 4, and a solid filling medium capable of transferring heat is filled in the second filling gap 9. The filling medium in the second filling gap 9 is a granular medium. The granular medium may comprise salt or sand, etc., which has an excellent heat-retaining effect, and fine grains can ensure uniformity of contact of the filling medium with the blackbody radiation source 4, thereby ensuring thermal uniformity of the surface (concave surface) of the blackbody radiation source 4.

In this application, the accessible extends the frame and seals the packing space, and heat transfer frame fixed mounting is on heat conduction frame, and the heat transfer frame can cover the last port in first packing space 8 completely for when heat transfer seat 3 counterpoint is installed in heat conduction seat 2, can seal first packing space 8. The outer edge of the blackbody radiation source 4 horizontally extends out of the fixed frame, and the heat transfer frame is provided with a groove for embedding and installing the fixed frame, so that the fixed frame can seal the second filling gap 9 when the blackbody radiation source 4 is arranged in the heat transfer seat 3 in an aligned mode.

Based on the distribution characteristics of the filling gaps, the blackbody radiation source 4 can be fixedly 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, the heat transfer seat 3 is close to the heat transfer frame to form a filling hole 31, medium filling can be carried out in the second filling gap 9 through the filling hole 31, and after filling is completed, the filling hole 31 can be sealed. The sealing mode can be selected according to actual conditions, such as glue matched with a sealing block, screw matched with a sealing bolt and the like.

Before the radiation component 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 component is installed on the heat conduction seat 2 in an aligned mode. It can be understood that the heat conducting seat 1 and the heat conducting seat 3 can be made of hard alloy materials, and can be pressed by adopting adaptive force when flexible media are filled, so that the flexible media are uniformly laid. Finally, the cover plate 5 can be covered on the radiation component and fixedly installed by screws.

Based on the stacked structure of the application, the heat conducting seat 2, the heat conducting seat 3 and the blackbody radiation source 4 can be coaxially aligned and installed, and the coaxial alignment can be realized through the positioning holes on the respective extending frames, so that the widths in the filling gaps are basically the same. Illustratively, the heat conducting rim may be fixedly mounted with the housing 1 so as to maintain a horizontal posture; the heat conduction frame is provided with a positioning hole which is matched with the positioning hole on the heat conduction frame, so that the alignment and the installation between the heat conduction seat 3 and the heat conduction seat 2 are realized; the heat transfer frame of the heat transfer seat 3 can be provided with an annular groove, so that the fixed frame of the blackbody radiation source 4 can be matched with the groove for installation, and the alignment installation between the heat transfer seat 3 and the blackbody radiation source 4 is realized.

In this application, to the heating source of blackbody radiation source 4 be located the evagination face of heat conduction seat 2, in order to be convenient for contact heat conduction's high efficiency goes on, to current planar heating plate structure, curved evagination face obviously is inapplicable, consequently, in the embodiment of this application, cut the evagination face of heat conduction seat 2, form a plurality of planar heating regions to the heating plate laminating of planar is used of being convenient for, provides good thermal contact, heat conduction.

In a specific embodiment, the outer convex surface of the heat conducting seat 2 is provided with a plurality of side tangential surfaces 21 along the circumferential direction, the bottom is provided with a bottom tangential surface 22, the plurality of side tangential surfaces 21 are uniformly distributed around the bottom tangential surface 22, as shown in fig. 1 and 7, the side tangential surfaces 21 are in an inclined state, the undercut surface 22 is in a horizontal state, the heating module is attached to the tangential surface for installation, the heating plate of the heating module can be attached to the tangential surface for fixed installation, and the heat transfer effect is stable.

The heating module may comprise a first heating module 6 and a second heating module 7, wherein the first heating module 6 is fixedly mounted on the side surface 21, and the second heating module 7 is fixedly mounted on the undercut surface 22. The heating plates of the first heating module 6 and the second heating module 7 are attached to the tangential plane of the heat conduction seat 2.

Specifically, the first heating module 6 includes a fixing plate 63 attached to the side section 21, a side heating plate 62, and a heat insulation pressing plate 61, where the upper end of the fixing plate 63 extends to the lower side of the heat conducting frame and is fixed, the lower end of the fixing plate 63 extends to the undercut surface 22 and is fixed, the fixing plate 63 is provided with an annular notch at the side section 21, the side heating plate 62 is in an annular structure, and the heat insulation pressing plate 61 is fixedly mounted on the outer side of the fixing plate 63, so that the heat insulation pressing plate 61 can press the side heating plate 62 in the notch, and make it tightly attached to the side section 21. The lower side of the annular notch can be provided with a connecting wire interface for arranging wires of the opposite side heating plate 62, and the heat insulating pressing plate 61 and the connecting wire interface are not mutually interfered.

The second heating module 7 comprises a fixed pressing plate 71 and a bottom heating plate 72, wherein the fixed pressing plate 71 is attached to the undercut surface 22, the bottom heating plate 72 is of an annular structure, the fixed pressing plate 71 is located on the outer side and is pressed against the undercut surface 22, and the fixed pressing plate 71 is fixed on the undercut surface 22 through screws and does not collide with the lower end of the fixed plate 63.

It will be appreciated that the side heater plate 62, bottom heater plate 72 may be identical in power rating, voltage rating, etc., and may vary in size, as may be desired, depending on the actual cut size. The heat insulating pressing plate 61 and the fixed pressing plate 71 are made of high-temperature resistant plastics, generally bakelite is adopted, the heat insulating pressing plate can work at a high temperature of 300 ℃ for a long time, the heat conducting performance of the plastics is poor, and the heat loss of the heating plate can be reduced. The heating plate can adopt a ceramic heating plate, and generates heat through electric control, and the connection mode is that two wires are connected with a circuit.

The side heating plate 62 can be aligned and attached to the weak part of the circumferential structure of the heat conducting base 2, so that the heat transfer efficiency is faster and the filling medium is heated rapidly.

Based on practical requirements, the housing 1 may include a front plate 11, a heat dissipation plate 12, a back plate 13, an operation plate 14, and a bottom plate 15, where the plates may be fixedly installed by a connection member having a right angle structure, so as to form a box structure of the housing 1. A cooling fan 121 is arranged on the cooling plate 12, and a wind gap of the cooling fan 121 is communicated with the outside; the back plate 13 is provided with a relay 131 and a switching power supply 132; the control switch 141 and the temperature control gauge head 142 are arranged on the operation panel 14, the control switch 141 is embedded on the outer side surface of the operation panel 14, and the display section of the temperature control gauge head 142 is positioned on the outer side surface of the operation panel 14; the fuse 17 is arranged on the heat conduction frame of the heat conduction seat 2, the fuse 17 is located inside the shell 1, the temperature sensor 16 is arranged at the bottom of the heat conduction seat 2, and the temperature sensor 16 is electrically connected with the temperature control gauge outfit 142, so that the temperature control gauge outfit 142 can process feedback parameters of the temperature sensor 16 and display corresponding temperature parameters.

In the embodiment of the application, granular filling medium is adopted in the second filling gap 9, when being heated, the heating expansion effect can be automatically eliminated in the second filling gap 9, structural damage can not be generated to the blackbody radiation source 4, and the integrity of the curved surface can be effectively ensured. The surface of the blackbody radiation source 4 may be subjected to a sandblasting black anodic oxidation treatment to eliminate the influence of light reflection on the module.

The above description may be implemented alone or in various combinations and these modifications are within the scope of the present invention.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific examples described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims (10)

1. The blackbody radiation source is characterized in that the blackbody radiation source (4) is of a concave structure, and the concave surface of the blackbody radiation source (4) is a curved surface.

2. A blackbody radiation source according to claim 1, characterized in that the concave curved surface of the blackbody radiation source (4) is a spherical surface, and the depth of the spherical surface is greater than the collecting surface of the 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 aspherical surface, and the depth of the aspherical surface is greater than the collecting surface of the infrared module (10).

4. The heating device of the blackbody radiation source is characterized by being used for heating the blackbody radiation source according to claim 1 and comprising a heat conduction seat (2) and a heat transfer seat (3) which are sequentially stacked and installed, wherein the heat conduction seat (2) and the heat transfer seat (3) are of concave structures, and the blackbody radiation source (4) is embedded and installed in the concave structure of the heat transfer seat (3); the heating module is connected to the outer convex surface of heat conduction seat (2), the heating module is in proper order to heat conduction seat (2) heat conduction seat (3) with blackbody radiation source (4) transfer heat.

5. The heating device of a blackbody radiation source according to claim 4, further comprising a housing (1), a cover plate (5) covering the upper port of the housing (1), wherein the heat conducting base (2) is embedded in the port of the housing (1), and the periphery of the cover plate (5) covers the heat conducting base (2), the heat conducting base (3) and the extension frame of the blackbody radiation source (4); and a perforation is formed in the middle of the cover plate (5), and the perforation enables the inner concave surface of the blackbody radiation source (4) to be open to the outside.

6. A heating arrangement of a blackbody radiation source according to claim 4, characterized in that a gap is provided between the heat conducting base (2), the heat conducting base (3) and the blackbody radiation source (4), which gap comprises a first filling gap (8) and a second filling gap (9), the gap width being the same everywhere in the first filling gap (8) and the gap width being the same everywhere in the second filling gap (9).

7. A heating arrangement of a blackbody radiation source according to claim 5, characterized in that the inner diameter of the heat conducting seat (2) is larger than the outer diameter of the heat conducting seat (3), so that a first filling gap (8) is formed between the heat conducting seat (2) and the heat conducting seat (3) when the heat conducting seat (3) is embedded in the inner cavity of the heat conducting seat (2).

8. A heating arrangement of a blackbody radiation source according to claim 7, characterized in that the first filling space (8) is filled with a flexible medium such that thermal contact is made between the thermally conductive holder (2) and the thermally conductive holder (3).

9. A heating arrangement of a blackbody radiation source according to claim 5, characterized in that the inner diameter of the heat transfer base (3) is larger than the outer diameter of the blackbody radiation source (4), so that when the blackbody radiation source (4) is embedded in the inner cavity of the heat transfer base (3), a second filling gap (9) is formed between the heat transfer base (3) and the blackbody radiation source (4); the filling medium in the second filling gap (9) is a granular medium.

10. A heating device of a blackbody radiation source according to claim 4, characterized in that a plurality of side cut surfaces (21) are circumferentially arranged on the outer convex surface of the heat conducting base (2), a bottom cut surface (22) is arranged at the bottom of the heat conducting base (2), and the side cut surfaces (21) are uniformly distributed around the undercut surface (22); the heating module comprises a first heating module (6) and a second heating module (7), wherein the first heating module (6) is installed on a side tangential surface (21) which is formed in the circumferential direction, the second heating module (7) is installed on an undercut surface (22), and heating sheets of the first heating module (6) and the second heating module (7) are attached to the tangential surface of the heat conducting seat (2).

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