Efficient infrared heating device
By using an arc-shaped surface to reflect heat and an independent heat dissipation structure in the infrared heating device, the problems of poor heat dissipation and low heating efficiency are solved, achieving efficient and uniform heating and extending the equipment's lifespan.
Patent Information
- Application Number
- CN202520210035.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing infrared heating devices suffer from poor heat dissipation and low heating efficiency, which leads to easy damage to melting equipment and excessively long heating times.
A high-efficiency infrared heating device was designed, which uses an arc-shaped surface to reflect heat to the crucible and sets heat dissipation pipes inside the shell to improve the heat dissipation effect. It includes an upper shell, a heating layer and a lower shell, each with an independent heat dissipation structure. Heat is carried away by continuously injecting and discharging coolant.
It improves heating efficiency and heat dissipation, extends the service life of the equipment, ensures uniform and rapid heating, and is suitable for efficient heating of metals or crystals.
Smart Images
Figure CN223639401U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to casting crystal manufacturing equipment technical field, concretely relates to a kind of high-efficiency infrared heating device. BACKGROUND
[0002] In actual production, using infrared heating device to heat metal or crystal is a common heating technology, which uses the radiant energy of infrared light to directly act on the heated object, making its molecules vibrate and absorb energy, thereby generating heat, which has the characteristics of fast heating, uniform heating and non-contact heating. However, there are still the following problems in the prior art using infrared light to heat: 1. Poor heat dissipation effect, which makes the melting device easy to be damaged; 2. Part of the infrared light cannot be directly transmitted to the heating container, resulting in long heating time and low heating efficiency. SUMMARY
[0003] (1) Technical problem to be solved
[0004] The utility model provides a kind of high-efficiency infrared heating device, to solve the problem of poor heat dissipation effect and low heating efficiency in the prior art.
[0005] (2) Technical scheme
[0006] The utility model provides a kind of high-efficiency infrared heating device, including shell, be equipped with heating cavity and be arranged at the center position of the crucible in the shell, the heating cavity is equipped with several intercommunicating chambers around the crucible, corresponding heating body is equipped in each chamber, the peripheral wall of the chamber is arc surface, the arc surface is two-dimensional or three-dimensional shape, when the heating body generates heat, the arc surface reflects the heat generated by the heating body to the crucible;
[0007] Among them, the shell is also equipped with heat dissipation pipeline, water inlet hole and water outlet hole, both ends of the heat dissipation pipeline are communicated with the water inlet hole and the water outlet hole respectively.
[0008] Further, the shell includes detachably connected upper shell, heating layer and lower shell from top to bottom, the lower end surface of the upper shell, the inner wall of the heating layer and the upper end surface of the lower shell form the heating cavity, and the heating end of the heating body extends into the chamber of the heating cavity through the lower shell.
[0009] Further, the heating layer includes a plurality of heating blocks that are the same in structure and arranged in a ring array around the crucible, and the adjacent two heating blocks are tightly connected with each other;Wherein, the side of the heating block towards the crucible is the arc surface.
[0010] Further, the heat dissipation pipe is arranged in the heating block and is composed of horizontal pipe one, arc pipe one, vertical pipe one, arc pipe two, vertical pipe two, arc pipe three and horizontal pipe two which are communicated in sequence, and the water inlet hole and the water outlet hole are arranged on the outer wall of the heating block respectively.
[0011] Further, the bottom surface of the lower shell is provided with an inwardly recessed lower groove body and a lower groove cover covering the lower groove body and detachably connected with the lower shell, and the lower groove body and the lower groove cover form a first infusion pipeline.
[0012] Further, the first infusion pipeline comprises an inner infusion pipeline, a connecting pipeline and an outer infusion pipeline which are arranged in sequence from inside to outside, and the inner infusion pipeline and the outer infusion pipeline are coaxially arranged and communicated through the connecting pipeline.
[0013] Further, the first infusion pipeline further comprises a plurality of annular pipelines arranged around the heating body, and at least part of the annular pipelines is communicated with the outer infusion pipeline.
[0014] Further, the upper shell is provided with an opening corresponding to the opening of the crucible pot, and the upper shell is provided with an upper groove body and an upper groove cover around the opening, and the end of the upper groove cover is tightly inserted into the upper groove body so that the inner wall of the upper groove cover and the top wall of the upper shell form a second infusion pipeline.
[0015] Further, the bottom wall of the heating cavity is provided with a support table, the support table is provided with a groove, and the bottom of the crucible is provided with a protrusion matched with the groove.
[0016] Further, the side wall of the support table is provided with a screw hole one communicated with the groove.
[0017] Compared with the prior art, the beneficial effects of the present application are as follows:
[0018] The upper shell, the heating layer and the lower shell of the shell body are all provided with independent heat dissipation structures, the cooling liquid is continuously injected and discharged from the corresponding pipelines to take away heat, the heat dissipation effect can be effectively improved, and the service life of the shell body or other heating appliances can be prolonged; in addition, the arc surface is arranged in the shell body, the infrared light emitted by the heating body is reflected to the crucible through the arc surface, and the heating efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a whole structure schematic view of the present application.
[0020] Figure 2 It is a whole structure sectional view of the present application.
[0021] Figure 3 It is an explosion view of the whole structure of the present application.
[0022] Figure 4 It is the structure schematic view of the heat dissipation pipeline of the utility model.
[0023] Figure 5 It is the position schematic view of the heating block and the heating body of the utility model.
[0024] Figure 6 It is the partial cutaway solid of the utility model Figure 1 .
[0025] Figure 7 It is the cutaway view of the lower shell of the utility model.
[0026] Figure 8 It is the schematic view of the cooling liquid flow of the first infusion pipeline of the utility model.
[0027] Figure 9 It is the partial cutaway solid of the utility model Figure 2 .
[0028] Figure 10 It is the cutaway view of the crucible, support platform and fixed plate of the utility model.
[0029] Reference signs: 1 - shell, 11 - upper shell, 111 - opening, 112 - upper groove body, 113 - upper groove cover, 1131 - through hole three, 1132 - through hole four, 114 - second infusion pipeline, 1141 - inner pipeline, 1142 - outer pipeline, 12 - heating layer, 121 - heating block, 1211 - arc surface, 122 - heat dissipation pipeline, 1221 - horizontal pipe one, 1222 - arc pipe one, 1223 - vertical pipe one, 1224 - arc pipe two, 1225 - vertical pipe two, 1226 - arc pipe three, 1227 - horizontal pipe two, 123 - water inlet hole, 124 - water outlet hole, 13 - lower shell, 131 - lower groove body, 132 - lower groove cover, 133 - first infusion pipeline, 1331 - inner infusion pipeline, 1332 - connecting pipe, 1333 - outer infusion pipeline, 1334 - annular pipe, 134 - heating groove, 135 - through hole one, 136 - through hole two, 2 - heating cavity, 21 - chamber, 22 - support platform, 221 - recess, 222 - screw hole one, 223 - support column, 3 - crucible, 31 - protruding block, 311 - section, 4 - heating body, 5 - fixed block, 51 - column hole, 52 - screw hole two. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0031] As Figures 1-10The utility model provides a kind of high-efficiency infrared heating device, including shell 1, heating cavity 2 and the crucible 3 being positioned at the center position of the heating cavity 2 are equipped in the shell 1, the heating cavity 2 is equipped with several intercommunicating chambers 21 around the crucible 3, each the chamber 21 is correspondingly equipped with heating body 4, wherein, the heating body 4 can emit thermal radiation after power on, and heat is transferred to the outer peripheral wall of the crucible 3 to make the crucible 3 temperature rise, so the crucible 3 is positioned on the center position of the heating cavity 2, the heating body 4 is arranged in annular array around the crucible 3, so that the heat of each heating body 4 can be evenly and comprehensively transferred to the outer peripheral wall of the crucible 3, and the balance of heat in the crucible 3 is ensured. Figure 5 As shown, the arc surface 1211 is the arc-shaped plane structure arranged on the peripheral wall of the chamber 21 towards the crucible 3 side, at this time, the central axis L2 of the heating body 4 and the arc surface 1211 are arranged in parallel with each other, and the thermal radiation of the heating body 4 irradiated on the arc surface 1211 can be transferred to the crucible 3 through the reflection of the arc surface 1211, since the arc surface 1211 is the arc-shaped plane structure, the reflected light is parallel light, so most of the thermal radiation can be directly transferred to the crucible 3, which can be applicable to crystal heating manufacturing;
[0032] The three-dimensional shape refers to the overall arc surface 1211 of the cavity 21, which is a hemispherical or semi-ellipsoidal structure facing the crucible 3. The heat radiation emitted by the heating body 4 is reflected by the arc surface 1211 in the shape of a hemisphere or semi-ellipsoid to the crucible 3, so that more heat radiation can be concentrated on the crucible 3. Compared with the two-dimensional shape of the arc surface 1211, the three-dimensional shape of the arc surface 1211 has higher utilization rate of heat radiation, and the heating efficiency of the crucible 3 is higher, which can be applied to crystal manufacturing with higher heat requirements. In the three-dimensional shape, the central axis L1 of the heating body 4 coincides with the central axis L2 of the heating block 121 when the heating body 4 is installed in the heating block 121, and the top end of the heating body 4 faces the crucible 3, so that the heat radiation emitted from the top end of the heating body 4 can directly irradiate the crucible 3, and the heat radiation emitted from the side wall of the heating body 4 is reflected by the arc surface 1211 of the heating block 121. Further, each cavity 21 can be arranged around the crucible 3, so that the heat radiation emitted by the heating body 4 can not only directly irradiate the side wall of the crucible 3, but also directly irradiate the bottom of the crucible 3, so that the heat radiation can surround the crucible 3 in a three-dimensional manner, greatly improving the heating efficiency of the crucible 3, and making the heating of the side wall of the crucible 3 more uniform, and the effect of crystal heating and manufacturing is better.
[0033] Preferably, the heat radiation is infrared light.
[0034] During the heating process, the temperature of the heat emitted by the heating body 4 is extremely high, and part of it is absorbed by the shell 1. In order to prevent the shell 1 from deforming due to high temperature, a heat dissipation pipeline 122, a water inlet hole 123 and a water outlet hole 124 are arranged in the shell 1. The two ends of the heat dissipation pipeline 122 are respectively communicated with the water inlet hole 123 and the water outlet hole 124, which is used to continuously inject cooling liquid into each heat dissipation pipeline 122 from the water inlet hole 123, so that the cooling liquid can fully contact with the shell 1 to absorb heat, and the cooling liquid after absorbing heat is discharged from the water outlet hole 124, so that the shell 1 can achieve the purpose of continuous cooling and temperature reduction.
[0035] Specifically, as Figure 1 , Figure 2As shown, the shell 1 comprises, from top to bottom, detachably connected upper shell 11, heating layer 12 and lower shell 13, the lower end surface of the upper shell 11, the inner wall of the heating layer 12 and the upper end surface of the lower shell 13 form the heating cavity 2, wherein the lower shell 13 is provided with a heating groove 134 in communication with the heating cavity 2, the heating end of the heating body 4 passes through the heating groove 134 of the lower shell 13 and extends into the cavity 21 of the heating cavity 2, and the other end of the heating body 4 is exposed outside the lower shell 13, which is convenient for communication with the wire, prevents the wire from being in contact with the shell 1 to cause overheating damage, and the number of the heating groove 134 corresponds to the number of the heating body 4, and the user can set different numbers of the heating body 4 according to the required temperature, in the utility model, the number of the heating body 4 is preferably 6, which can not only meet the requirement of being arranged around the outer peripheral wall of the crucible 3 to make the heat of the outer peripheral wall of the crucible 3 uniform, but also can reach the required temperature at a suitable time, so as to avoid the problems of overheating and damage of the shell 1 or the heating body 4 when the number of the heating body 4 is too much, and the problem of long heating time when the number of the heating body 4 is too less.
[0036] Further, as shown in Figure 3 , Figure 5 Further, as shown in
[0037] Further, as shown in Figure 4As shown, the heat dissipation pipe 122 is arranged in the heating block 121 to reduce the temperature of the heating block 121 due to the close distance between the heating block 121 and the heat generator 4 and the high heat absorption, wherein the heat dissipation pipe 122 is composed of a horizontal pipe one 1221, an arc pipe one 1222, a vertical pipe one 1223, an arc pipe two 1224, a vertical pipe two 1225, an arc pipe three 1226 and a horizontal pipe two 1227 which are sequentially communicated, and the arc pipe one 1222, the arc pipe two 1224 and the arc pipe three 1226 are arranged on the side of the heating block 121 close to the arc surface 1211 and are arranged in an arc shape matched with the arc surface 1211; the horizontal pipe one 1221 and the horizontal pipe two 1227 are respectively arranged at two ends in the heating block 121 and are respectively communicated with the water inlet hole 123 and the water outlet hole 124, and the water inlet hole 123 and the water outlet hole 124 are respectively arranged on the outer wall of the heating block 121 to facilitate the injection of the cooling liquid. It should be noted that the composition of the heat dissipation pipe 122 is not limited to the case listed in the embodiment, and other different positions or different numbers of pipes should also fall within the protection scope of the utility model.
[0038] Further, as shown in the figure, Figures 6-8 As shown, the bottom surface of the lower shell 13 is provided with an inwardly recessed lower groove body 131 and a lower groove cover 132 covering the lower groove body 131 and detachably connected with the lower shell 13, and the lower groove body 131 and the lower groove cover 132 form a first liquid conveying pipe 133, which is used to continuously inject flowing cooling liquid to take away the heat of the lower shell 13 to achieve the purpose of cooling and heat dissipation.
[0039] Specifically, the first liquid conveying pipe 133 includes an inner liquid conveying pipe 1331, a connecting pipe 1332 and an outer liquid conveying pipe 1333 which are sequentially arranged from inside to outside, and the inner liquid conveying pipe 1331 and the outer liquid conveying pipe 1333 are coaxially arranged and communicated through the connecting pipe 1332. In the utility model, since the crucible 3 is arranged at the center position of the shell 1, the heating cavity 2 bottom wall is provided with a support table 22 for supporting the crucible 3, and the other end of the support table 22 away from the crucible 3 is provided with a support column 223 which penetrates through the lower shell 13 and extends to the outside of the shell 1, so that the lower groove body 131 is provided with an annular inner liquid conveying pipe 1331 and an outer liquid conveying pipe 1333 with the support column 223 as the axis, and the connecting pipe 1332 is arranged in an annular array to accelerate the flowability of the cooling liquid in the first liquid conveying pipe 133 to achieve the effect of continuous heat dissipation.
[0040] Further, the first liquid conveying pipe 133 further comprises a plurality of annular pipes 1334 arranged around the heat generating body 4, at least part of the annular pipes 1334 being in communication with the outer liquid conveying pipe 1333, wherein a through hole one 135 in communication with each of the annular pipes 1334 is respectively arranged on the side wall of the lower shell 13, and a plurality of through holes two 136 corresponding to the position of the inner first liquid conveying pipe 133 are arranged on the lower groove cover 132, the through hole one 135 and the through hole two 136 being in communication with each other through the first liquid conveying pipe 133. When the cooling liquid is continuously injected into the through hole one 135 or the through hole two 136, the cooling liquid fills the first liquid conveying pipe 133 and fully contacts the lower shell 13 to take away the heat of the lower shell 13, and the cooling liquid absorbing the heat is discharged from the through hole two 136 or the through hole one 135, so that the heat dissipation of the lower shell 13 is realized.
[0041] Further, as shown in Figure 9 In order to realize the heat dissipation of the upper shell 11, an upper groove body 112 and an upper groove cover 113 are arranged on the upper shell 11, the end of the upper groove cover 113 is tightly inserted into the upper groove body 112, so that the inner wall of the upper groove cover 113 and the top wall of the upper shell 11 form a second liquid conveying pipe 114, a through hole three 1131 and a through hole four 1132 in communication with the second liquid conveying pipe 114 are respectively arranged on the side wall of the upper groove cover 113, the through hole three 1131 or the through hole four 1132 is respectively used for water injection or water outlet, and the principle is the same as that of the first liquid conveying pipe 133, which will not be described here.
[0042] It should be noted that the opening 111 corresponding to the pot opening of the crucible 3 is further arranged on the upper shell 11, and the end surface of the crucible 3 abuts against the bottom end of the upper shell 11, so that the heat diffusion from the connection or the heat radiation of the heat generating body 4 from the connection is avoided, the opening 111 is arranged to facilitate the placement of the material to be melted into the crucible 3, and the upper groove body 112 is annularly arranged around the opening 111. In the utility model, the second liquid conveying pipe 114 further comprises an inner pipe 1141 and an outer pipe 1142 arranged in sequence from inside to outside, the inner pipe 1141 and the outer pipe 1142 can be independently arranged or in communication with each other, and the flowability of the cooling liquid is improved through the arrangement of a plurality of pipes, so as to increase the contact area with the upper shell 11, thereby improving the heat dissipation effect.
[0043] By setting the heat dissipation structures independently in the upper shell 11, the heating layer 12 and the lower shell 13 of the shell 1 respectively, the overall heat dissipation of the shell 1 can be realized, the effect of high-efficiency heat dissipation is achieved, and meanwhile, when any heat dissipation pipeline 122 is blocked, the flow of other heat dissipation pipelines 122 is not affected, the pipeline checking, cleaning and maintenance are more convenient, and the practicality is higher.
[0044] Preferably, as shown in the drawings, the heating cavity 2 is provided with a support table 22, the support table 22 is provided with a groove 221, the bottom of the crucible 3 is provided with a protruding block 31 matched with the groove 221, and when the protruding block 31 is clamped with the groove 221, the end surface of the support table 22 abuts against the bottom of the crucible 3, so that the support surface of the crucible 3 is increased, and the shape of the crucible 3 is not limited, which can be a cylinder, a sphere or a cup and the like. Figure 10
[0045] In order to further enhance the stability of the connection between the crucible 3 and the support table 22, a screw hole one 222 communicated with the groove 221 is arranged on the side wall of the support table 22, when the protruding block 31 of the crucible 3 is clamped with the groove 221, the screw is abutted against the protruding block 31 of the crucible 3 by screwing through the screw hole one 222 and rotating, and the tighter the screw is screwed, the more stable the crucible 3 is. In addition, when the protruding block 31 is in a cylindrical structure, a cutting surface 311 can be arranged on the protruding block 31, the cutting surface 311 is arranged perpendicularly to the abutment surface of the screw, so that the contact area of the screw and the protruding block 31 is increased, and the connection between the crucible 3 and the support table 22 is more stable. In the utility model, since the support table 22 and the shell 1 are detachably connected, a support column 223 is further arranged at the other end of the support table 22, the support column 223 penetrates through the lower shell 13 and extends to the outside of the lower shell 13, therefore, a fixed block 5 fixedly connected with the bottom end of the lower shell 13 is further arranged at the bottom end of the lower shell 13, a column hole 51 matched with the support column 223 is arranged in the fixed block 5, and a screw hole two 52 is arranged on the side wall of the column hole 51, when the support column 223 is arranged in the column hole 51, the support column 223 is further fixed in the column hole 51 by screwing the screw into the screw hole two 52, so that the support column 223 cannot rotate, and the stability of the crucible 3 is further ensured.
[0046] The working principle of the utility model is described in detail as follows:
[0047] In use, first, the crucible 3 is placed on the support table 22 in the shell 1 and fixed, the material to be melted is placed in the crucible 3, then the heating body 4 is powered on, the heating end of the heating body 4 emits heat radiation in all directions, part of the heat radiation directly irradiates on the outer peripheral wall of the crucible 3, and the other part irradiates on the arc surface 1211, and the heat is transmitted to the crucible 3 again through the reflection of the arc surface 1211, so as to improve the heating efficiency of the crucible 3.
[0048] The upper shell 11, the heating layer 12 and each heating block 121, and the lower shell 13 are provided with the heat dissipation structure, the flowing cooling liquid absorbs the heat of the shell 1 and is discharged to realize the heat dissipation effect of the shell 1.
[0049] In addition, it should be understood that although the present specification is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and the skilled person should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by the skilled person.
[0050] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.
Claims
1. A high efficiency infrared heating device, characterized by, The application relates to a heating device, which comprises a shell (1) provided with a heating cavity (2) and a crucible (3) arranged at the center of the heating cavity (2), wherein a plurality of cavities (21) are arranged around the crucible (3) and are in communication with each other, a heating body (4) is arranged in each cavity (21), the peripheral wall of the cavity (21) is an arc surface (1211), the arc surface (1211) is two-dimensional or three-dimensional, and the arc surface (1211) reflects the heat generated by the heating body (4) to the crucible (3) when the heating body (4) generates heat. The shell (1) is further provided with a heat dissipation pipeline (122), a water inlet hole (123) and a water outlet hole (124), and the two ends of the heat dissipation pipeline (122) are in communication with the water inlet hole (123) and the water outlet hole (124) respectively.
2. The high efficiency infrared heating device of claim 1, wherein, The shell (1) comprises an upper shell (11), a heating layer (12) and a lower shell (13) which are connected in sequence from top to bottom, the lower end surface of the upper shell (11), the inner wall of the heating layer (12) and the upper end surface of the lower shell (13) form the heating cavity (2), and the heating end of the heating body (4) penetrates through the lower shell (13) and extends into the cavity (21) of the heating cavity (2).
3. The high efficiency infrared heating device of claim 2, wherein, The heating layer (12) comprises a plurality of heating blocks (121) which are arranged in a ring array around the crucible (3) and have the same structure, and the two adjacent heating blocks (121) are tightly connected with each other, and the side of the heating block (121) facing the crucible (3) is the arc surface (1211).
4. The high efficiency infrared heating device of claim 3, wherein, The heat dissipation pipeline (122) is arranged in the heating block (121) and comprises a horizontal pipe one (1221), an arc pipe one (1222), a vertical pipe one (1223), an arc pipe two (1224), a vertical pipe two (1225), an arc pipe three (1226) and a horizontal pipe two (1227) which are sequentially communicated, and the water inlet hole (123) and the water outlet hole (124) are arranged on the outer wall of the heating block (121) respectively.
5. The high efficiency infrared heating device of claim 2, wherein, The bottom surface of the lower shell (13) is provided with an inwardly recessed lower groove body (131) and a lower groove cover (132) which covers the lower groove body (131) and is detachably connected with the lower shell (13), and the lower groove body (131) and the lower groove cover (132) form a first transfusion pipeline (133).
6. The high efficiency infrared heating device of claim 5, wherein, The first transfusion pipeline (133) comprises an inner transfusion pipeline (1331), a connecting pipe (1332) and an outer transfusion pipeline (1333) which are sequentially arranged from inside to outside, and the inner transfusion pipeline (1331) and the outer transfusion pipeline (1333) are coaxially arranged and are in communication through the connecting pipe (1332).
7. The high efficiency infrared heating device of claim 6, wherein, The first transfusion pipeline (133) further comprises a plurality of annular pipes (1334) arranged around the heating body (4), and at least part of the annular pipes (1334) is in communication with the outer transfusion pipeline (1333).
8. The high efficiency infrared heating device of claim 2, wherein, The upper shell (11) is provided with an opening (111) corresponding to the pot opening of the crucible (3), the upper shell (11) is provided with an upper groove body (112) and an upper groove cover (113) around the opening (111), and the end of the upper groove cover (113) is tightly inserted into the upper groove body (112) so that the inner wall of the upper groove cover (113) and the top wall of the upper shell (11) form a second infusion pipeline (114).
9. The high efficiency infrared heating device of claim 1, wherein, The bottom wall of the heating cavity (2) is provided with a support table (22), the support table (22) is provided with a groove (221), and the bottom of the crucible (3) is provided with a protrusion (31) matched with the groove (221).
10. The high efficiency infrared heating device of claim 9, wherein, The side wall of the support table (22) is provided with a screw hole (222) in communication with the groove (221).