Infrared baking device and drying equipment

Abstract

The utility model belongs to the technical field of battery manufacturing, and provides an infrared baking device and drying equipment.The infrared baking device comprises a lamp tube and a lampshade, a containing cavity is formed in the lampshade, and the lamp tube is arranged in the containing cavity; air inlets are formed in the two ends of the lampshade in the length direction of the lampshade, air outlets are further formed in the lampshade, the air inlets and the air outlets communicate with the containing cavity, and the air pressure in the containing cavity is larger than that outside the containing cavity. According to the infrared baking device and the drying equipment provided by the embodiment of the invention, the problem of explosion caused by contact between the infrared lamp tube and gas in a use environment is solved, and the infrared baking device and the drying equipment have relatively good safety.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to an infrared baking device and drying equipment. Background Art

[0002] As a highly efficient non-contact heating method, infrared heating has been widely used in industrial processes. In the preparation of power batteries, the use of infrared lamps to bake the pole pieces can improve the drying efficiency of the pole pieces. However, there is a risk of explosion when infrared lamps come into contact with the gas in the use environment. When infrared lamps are used in harsh environments such as those with flammable and explosive gases, there are great safety hazards. Utility Model Content

[0003] In view of this, the embodiments of the present application provide an infrared baking device and a drying device, which can solve the problem of explosion caused by the infrared lamp tube coming into contact with the gas in the use environment.

[0004] An embodiment of the first aspect of the present application proposes an infrared baking device, comprising a lamp tube and a lampshade, wherein a accommodating cavity is provided in the lampshade, and the lamp tube is arranged in the accommodating cavity; air inlets are provided at both ends of the lampshade along its length direction, and an air outlet is also provided on the lampshade, and both the air inlet and the air outlet are connected to the accommodating cavity, and the air pressure in the accommodating cavity is greater than the air pressure outside the accommodating cavity.

[0005] The infrared baking device provided by the embodiment of the present application includes a lamp tube and a lampshade. A housing cavity is provided in the lampshade. Air inlets are provided at opposite ends of the lampshade respectively and an air outlet is provided on the lampshade. Cooling gas can enter the housing cavity from the air inlet and exhaust air from the air outlet. The cooling gas can cool the lamp tube. Moreover, the air pressure in the housing cavity is greater than the air pressure outside the housing cavity. Gas in the use environment is not easy to enter the housing cavity, which reduces the risk of contact between the ambient gas and the lamp tube. At the same time, the lampshade can simultaneously take in air at both ends along its length direction, which is conducive to the cooling gas to uniformly cool the lamp tube along the length direction of the lamp tube to reduce the temperature of the lamp tube. The above infrared baking device can cool the lamp tube and isolate the ambient gas through the lampshade, which reduces the risk of contact between the ambient gas and the lamp tube, plays an explosion-proof effect, and improves the safety of the infrared baking device.

[0006] In some embodiments, two air outlets are respectively provided at two ends of the lampshade along its length direction.

[0007] By adopting the above technical solution, an air inlet and an air outlet are respectively arranged at both ends of the lampshade, which is beneficial to improving the cooling uniformity of the infrared baking device along its length direction and can meet the cooling requirements of long lamp tubes.

[0008] In some embodiments, the lampshade includes an outer shell and a partition arranged in the outer shell, the partition divides the accommodating cavity into an installation cavity and an air distribution cavity, and the partition is provided with an air vent connecting the installation cavity and the air distribution cavity; the installation cavity is used to accommodate the lamp tube, the two air inlets are respectively connected to the opposite ends of the installation cavity, and the two air outlets are respectively connected to the opposite ends of the air distribution cavity.

[0009] By adopting the above technical solution, the cooling gas is evenly distributed in the installation cavity and the air distribution cavity, so that the lamp tube can be evenly cooled.

[0010] In some embodiments, the partition is provided with at least one row of ventilation holes spaced apart along its length, wherein the cross-sectional area of ​​the ventilation holes in the middle of the partition is larger than the cross-sectional area of ​​the ventilation holes at both ends of the partition, and / or the density of the ventilation holes in the middle of the partition is greater than the density of the ventilation holes at both ends of the partition.

[0011] By adopting the above technical solution, the structure and arrangement of the vents can be adjusted, and the ventilation volume in the middle and both ends of the partition can be adjusted, which is beneficial to the uniform distribution of the cooling gas and improves the cooling uniformity and cooling effect.

[0012] In some embodiments, a sub-cavity and a first flow channel extending along the length direction are provided in the installation cavity. The sub-cavity is used to accommodate the lamp tube and is connected to the wind equalizing cavity. The two ends of the first flow channel are respectively connected to the two air inlets. The first flow channel has a first air hole connected to the sub-cavity.

[0013] By adopting the above technical solution, the cooling gas can be introduced into the sub-cavity along the first flow channel, and the low-temperature cooling gas can be directly blown toward the lamp tube along the axial direction of the lamp tube, resulting in better cooling effect and better cooling uniformity.

[0014] In some embodiments, the orthographic projections of the vent holes toward the accommodating cavity are all located in the sub-cavity, and the wind equalizing cavity is connected to the sub-cavity through the vent holes.

[0015] By adopting the above technical solution, the first flow channel is not ventilated with the wind equalizing cavity, so that more cooling gas flows into the sub-cavity, thereby improving the cooling effect in the sub-cavity.

[0016] In some embodiments, the lampshade also includes two first flow guides, which are arranged in the installation cavity and respectively located on opposite sides of the shell along its width direction. The first flow guides extend along the length direction of the lampshade, and a first flow channel is formed between each first flow guide and the side wall of the shell.

[0017] By adopting the above technical solution, the two first flow guides separate two first flow channels and sub-cavities in the installation cavity, and the two first flow channels are respectively located on opposite sides of the sub-cavity along its width direction, so that the cooling gas can enter the sub-cavity from both sides of the sub-cavity, and the uniformity of the incoming air is better.

[0018] In some embodiments, the first air holes are strip-shaped holes extending along the first flow channel.

[0019] By adopting the above technical solution, the cooling gas can flow to the bottom of the shell through the first air hole to cool the bottom of the shell, and then the cooling gas rises to the lamp tube and flows to the air distribution cavity through the partition.

[0020] In some embodiments, the first flow guide is provided with flow blocking portions at both ends of the sub-cavity along the length direction thereof, respectively, and the flow blocking portions are used to shield a portion of the first air holes.

[0021] By adopting the above technical solution, a flow blocking portion is provided at the end of the first flow guide, which can reduce the ventilation volume of the first air hole at the end of the sub-cavity, which is conducive to achieving uniform ventilation and heat dissipation.

[0022] In some embodiments, a second flow channel extending along the length direction is further provided in the installation cavity, the second flow channel is provided between the two first flow channels and each lamp tube is located between the second flow channel and a first flow channel; the two ends of the second flow channel are respectively connected to the two air inlets, the second flow channel has a second air hole connected to the sub-cavity, and the second air hole faces the lamp tube or the side of the installation cavity away from the air distribution cavity.

[0023] By adopting the above technical solution, the second flow channel is arranged between the two first flow channels, which can supply cooling gas to the middle of the sub-cavity, which is conducive to achieving uniform heat dissipation along the width direction of the sub-cavity. The first flow channel and the second flow channel blow air toward both sides of the lamp tube respectively, and the cooling effect is better.

[0024] In some embodiments, the lampshade further includes a second flow guide member disposed in the installation cavity, and the second flow guide member is fixedly connected to the partition plate and together forms a second flow channel.

[0025] By adopting the above technical solution, the second flow channel is formed by the second guide member and the partition, and the first flow channel and the second flow channel can divert the cooling gas entering the accommodating cavity from the air inlet, thereby further improving the cooling uniformity.

[0026] In some embodiments, the second air hole is a strip hole extending along the second air guide, and the width of the second air hole at the end of the second air guide is smaller than the width of the second air hole in the middle of the second air guide.

[0027] By adopting the above technical solution, the ventilation volume and ventilation speed in the middle part of the second air guide member are increased, and the cooling uniformity is further improved.

[0028] In some embodiments, the lampshade also includes two partitions, which are respectively arranged relative to the two end walls of the outer shell along its length direction and are both connected to the partition, and the partitions, the partitions and the two side walls of the outer shell along its width direction together form a diversion cavity connected to the air inlet; the partition is provided with a third air hole connected to the second flow channel, and the two first flow channels are respectively connected to the opposite ends of the diversion cavity along the width direction of the outer shell.

[0029] By adopting the above technical solution, the ventilation volume and ventilation speed in the middle part of the second air guide member can be increased, and the cooling uniformity is further improved.

[0030] In some embodiments, the outer shell includes a main shell with an opening at one end and a light-transmitting plate covering the opening. The light-transmitting plate is located on the side of the installation cavity away from the air equalizing cavity. The light-transmitting plate is used to transmit light emitted by the lamp tube. The first air hole is formed between the first flow guide and the light-transmitting plate.

[0031] By adopting the above technical solution, the temperature of the light-transmitting plate can be lowered by the cooling gas, thereby reducing the risk of explosion caused by the gas in the use environment coming into contact with the high-temperature light-transmitting plate.

[0032] In some embodiments, the infrared baking device includes at least two lamp tubes, and the at least two lamp tubes are spaced apart along the width direction of the lampshade.

[0033] By adopting the above technical solution, the infrared baking device can be provided with more lamp tubes, thereby improving the baking efficiency.

[0034] An embodiment of the second aspect of the present application provides a drying device, comprising the infrared baking device provided in the first aspect, wherein the infrared baking device is used to provide a heat source for the drying device.

[0035] The infrared baking device has good explosion-proof performance, which improves the overall explosion-proofness and safety of the drying equipment. The drying equipment can be used in a variety of usage environments, which improves the scope of application of the drying equipment.

[0036] In some embodiments, the infrared baking device further includes a cooling air duct structure, which includes an air inlet pipe, an air outlet pipe and a high-pressure fan, wherein the air inlet pipe is connected to the air inlet, and the air outlet pipe is connected to the air outlet.

[0037] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or conventional technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 is a three-dimensional schematic diagram of an infrared baking device provided in some embodiments of the present application;

[0040] Figure 2 yes Figure 1 A perspective view of the infrared baking device shown;

[0041] Figure 3 yes Figure 2 A cross-sectional view of the infrared baking device along line AA shown;

[0042] Figure 4 yes Figure 1 A perspective exploded view of the infrared baking device shown;

[0043] Figure 5 yes Figure 4 A partial enlarged view of part B in the middle;

[0044] Figure 6 yes Figure 1 A three-dimensional schematic diagram of a first flow guide member in the infrared baking device shown;

[0045] Figure 7 yes Figure 6 A partial enlarged view of the C portion of the first flow guide shown;

[0046] Figure 8 yes Figure 1 A three-dimensional schematic diagram of a second flow guide member in the infrared baking device shown;

[0047] Fig. 9 This is one of the airflow schematic diagrams of the infrared baking device provided in some embodiments of the present application;

[0048] Fig.10 This is the second airflow schematic diagram of the infrared baking device provided in some embodiments of the present application.

[0049] The meanings of the marks in the figure are:

[0050] 100, infrared baking device; 10, lampshade; 101, air inlet; 102, air outlet; 11, accommodating chamber; 111, mounting chamber; 1111, first flow channel; 1111a, first air hole; 1112, second flow channel; 1113, sub-chamber; 1114, flow distribution chamber; 112, wind distribution chamber; 12, outer shell; 121, main shell; 122, glass plate; 13, partition; 131, air vent; 141, first flow guide; 1412, flow blocking part; 142, second flow guide; 1421, second air hole; 143, partition; 1431, third air hole; 20, lamp tube; 30, air inlet pipe; 40, air outlet pipe. DETAILED DESCRIPTION

[0051] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0053] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0054] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0055] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0056] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0057] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0058] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0059] In the process of preparing power batteries, the pole pieces need to be dried after coating. Using infrared lamps to bake the pole pieces can improve the drying efficiency of the pole pieces. The pole pieces include cathode pole pieces and anode pole pieces. The coating of the cathode pole piece contains nitrogen methyl pyrrolidone (NMP). NMP will volatilize into gas at high temperature. NMP gas is flammable. When NMP gas reaches a certain concentration, it may cause an explosion when it encounters an open flame. Therefore, when infrared lamps are used to dry cathode pole pieces, if NMP gas contacts the infrared lamps, it is easy to cause an explosion.

[0060] In view of this, the present application provides an infrared baking device, including a lamp tube and a lampshade, wherein a housing cavity is provided in the lampshade, the lamp tube is provided in the housing cavity, and the lampshade can isolate the lamp tube from the gas in the use environment; the lampshade is provided with air inlets at both ends along the length direction thereof, and an air outlet is also provided on the lampshade, the air inlet and the air outlet are both connected to the housing cavity, and the air pressure in the housing cavity is greater than the air pressure outside the housing cavity, so that the cooling gas can enter the housing cavity from the two air inlets and discharge from the air outlet, so that the housing cavity maintains a positive pressure state, and the gas in the use environment is not easy to enter the housing cavity, thereby reducing the risk of the ambient gas contacting the lamp tube; at the same time, the lampshade can simultaneously enter air at both ends along the length direction thereof, which is conducive to the cooling gas to uniformly cool the lamp tube along the length direction of the lamp tube, so as to reduce the temperature of the lamp tube. Therefore, the above infrared baking device can cool the lamp tube and isolate the ambient gas through the lampshade, thereby reducing the risk of the ambient gas contacting the lamp tube, achieving an explosion-proof effect, and improving the safety of the infrared baking device.

[0061] Please refer to Figures 1 to 4 An embodiment of the first aspect of the present application provides an infrared baking device 100, including a lamp tube 20 and a lampshade 10, wherein a receiving cavity 11 is provided in the lampshade 10, and the lamp tube 20 is arranged in the receiving cavity 11; the lampshade 10 is provided with air inlets 101 at both ends along its length direction, and an air outlet 102 is also provided on the lampshade 10, and the air inlet 101 and the air outlet 102 are both connected to the receiving cavity 11, and the air pressure in the receiving cavity 11 is greater than the air pressure outside the receiving cavity 11.

[0062] The lamp tube 20 is a heating source in the infrared baking device 100. The lamp tube 20 is used to generate infrared radiation and can radiate heat to the area irradiated by the light, thereby providing the infrared baking device 100 with heat for drying materials such as battery electrodes. The number of the lamp tubes 20 can be one or more, for example, Figure 3 As shown, in some embodiments, the number of the lamp tubes 20 is two, and the two lamp tubes 20 are arranged side by side in the accommodating cavity 11 .

[0063] The lampshade 10 is used to accommodate the lamp tube 20 and provide protection for the lamp tube 20. The lampshade 10 can be an integral structure or a split structure. For example, the lampshade 10 includes a shell and an end cover provided on the shell. The lampshade 10 can be in various shapes such as a rectangular parallelepiped, a cylindrical shape, a conical shape, etc. At least one side of the lampshade 10 can transmit the light emitted by the lamp tube 20 so that the light emitted by the lamp tube 20 can be irradiated onto the workpiece to be baked.

[0064] The lampshade 10 is provided with a receiving cavity 11, which is a closed cavity. The lampshade 10 is provided with air inlets 101 at both ends along the length direction (first direction X), and both air inlets 101 can allow cooling gas to flow into the receiving cavity 11. Since the length direction of the lamp tube 20 is relatively large, the embodiment of the present application provides air inlets 101 at both ends of the lamp tube 20 along the length direction, respectively, so that cooling gas can enter the receiving cavity 11 from both ends of the lamp tube 20, so that both ends of the lamp tube 20 along the length direction can be evenly cooled. The lampshade 10 is also provided with an air outlet 102, which can be provided at the end or the middle of the lamp tube 20. The cooling gas can enter the accommodating cavity 11 from the air inlets 101 at both ends of the lampshade 10 and contact the lamp tube 20 to reduce the temperature of the lamp tube 20, and is discharged from the air outlet 102. Therefore, the air temperature in the accommodating cavity 11 is lower than the external temperature, and the cooling gas can have a better cooling effect on the lamp tube 20 in the accommodating cavity 11.

[0065] Since the lampshade 10 is provided with an air inlet 101 and an air outlet 102, the infrared baking device 100 provided in the embodiment of the present application can achieve the effect that the air pressure in the accommodation chamber 11 is greater than the air pressure outside the accommodation chamber 11 by means of air inlet and outlet, that is, the air pressure in the accommodation chamber 11 is positive pressure, so that the gas in the use environment is not easy to enter the accommodation chamber 11. The air pressure outside the accommodation chamber 11 is the air pressure in the use environment of the infrared baking device 10, wherein the air pressure outside the accommodation chamber 11 can be equal to the standard atmospheric pressure, but is not limited thereto, as long as the air pressure in the accommodation chamber 11 can be greater than the air pressure outside the accommodation chamber 11.

[0066] The air pressure in the accommodation chamber 11 can be achieved through a variety of structures. For example, the air inlet 101 is connected to a high-pressure air source such as a high-pressure blower, and the high-pressure cooling gas provided by the high-pressure air source enters the accommodation chamber 11 from the air inlet 101, thereby achieving a positive pressure effect in the accommodation chamber 11; for another example, the aperture of the air inlet 101 is configured to be larger than the aperture of the air outlet 102, and the total air intake of the air inlet 101 per unit time is larger than the total air outlet of the air outlet 102, thereby achieving a positive pressure effect in the accommodation chamber 11.

[0067] When in use, the lamp tube 20 is started, and the light emitted by the lamp tube 20 passes through the lampshade 10 and irradiates the workpiece to be baked, such as a pole piece. During the baking process, cooling gas is blown into the accommodating cavity 11 from the air inlets 101 at both ends of the lampshade 10, and the cooling gas cools the lamp tube 20, and then the cooling gas flows out from the air outlet 102, and the outflowing cooling gas can be cooled again, so that the cooling gas can be recycled.

[0068] The infrared baking device 100 can be used to bake the electrode pieces to achieve high-power radiation drying. The electrode pieces include cathode electrode pieces and anode electrode pieces. During the baking process of the cathode electrode pieces, NMP gas will be generated, and the NMP gas is flammable and explosive.

[0069] The infrared baking device 100 provided in the embodiment of the present application includes a lamp tube 20 and a lampshade 10. The lampshade 10 can isolate the lamp tube 20 from NMP gas, and the accommodating chamber 11 maintains a positive pressure state, and the NMP gas is not easy to enter the lampshade 10. Therefore, the above-mentioned infrared baking device 100 can cool the lamp tube 20, reduce the temperature of the lamp tube 20, and reduce the risk of gas in the use environment contacting the lamp tube 20, thereby achieving an explosion-proof effect.

[0070] The infrared baking device 100 provided in the embodiment of the present application includes a lamp tube 20 and a lampshade 10. The lampshade 10 is provided with a receiving cavity 11. The lampshade 10 is provided with air inlets 101 at opposite ends thereof and an air outlet 102. The cooling gas can enter the receiving cavity 11 from the air inlet 101 and be discharged from the air outlet 102. The cooling gas can cool the lamp tube 20. In addition, the air pressure in the receiving cavity 11 is greater than the air pressure outside the receiving cavity 11. The gas in the use environment is not easy to enter the receiving cavity 11, which reduces the risk of contact between the ambient gas and the lamp tube 20. At the same time, the lampshade 10 can simultaneously take in air at both ends along its length direction, which is conducive to the cooling gas to uniformly cool the lamp tube 20 along the length direction of the lamp tube 20, so as to reduce the temperature of the lamp tube 20. The infrared baking device 100 can cool the lamp tube 20 and isolate the ambient gas through the lampshade 10, which reduces the risk of contact between the ambient gas and the lamp tube 20, plays an explosion-proof effect, and improves the safety of the infrared baking device 100.

[0071] Please refer to Figure 4 , Fig. 9 In some embodiments, air outlets 102 are provided at both ends of the lampshade 10 along its length direction.

[0072] The two air outlets 102 are arranged opposite to each other, and each air outlet 102 is used to connect to an air outlet pipe 40. Optionally, along the gravity direction, the air outlet 102 is located above the air inlet 101, and the cooling gas will flow upward and out of the air outlet 102 after the temperature rises.

[0073] When in use, the two air inlets 101 respectively introduce cooling gas into the accommodating cavity 11 , and the cooling gas is discharged through the two air outlets 102 after heat exchange with the lamp tube 20 .

[0074] In the embodiment of the present application, an air inlet 101 and an air outlet 102 are respectively provided at both ends of the lampshade 10 , which is beneficial to improving the cooling uniformity of the infrared baking device 100 along its length direction and can meet the cooling requirements of the lamp tube 20 with a longer length.

[0075] like Figures 1 to 3 As shown, in some embodiments, the lampshade 10 includes a housing 12 and a partition 13 disposed in the housing 12, and the partition 13 divides the accommodating cavity 11 into an installation cavity 111 and an air distribution cavity 112. Figure 4 As shown, a vent hole 131 connecting the installation cavity 111 and the wind distribution cavity 112 is provided on the partition 13; the installation cavity 111 is used to accommodate the lamp tube 20, the two air inlets 101 are respectively connected to the opposite ends of the installation cavity 111, and the two air outlets 102 are respectively connected to the opposite ends of the wind distribution cavity 112.

[0076] The partition 13 extends along a first direction X, which is the length direction of the lampshade 10, and a second direction Y is the width direction of the lampshade 20. The two ends of the partition 13 are respectively connected to the two end walls of the lampshade 10 along the first direction. The installation cavity 111 and the wind distribution cavity 112 are arranged along a third direction Z, which is the height direction of the lampshade 10. The lamp tube 20 is fixed in the installation cavity 111, and the two air inlets 101 are respectively connected to the opposite ends of the installation cavity 111, so that the two air inlets 101 respectively introduce cooling gas into the installation cavity 111, so that the cooling gas contacts the lamp tube 20 and dissipates the heat of the lamp tube 20; the cooling gas can also dissipate the heat of the installation cavity 111, including dissipating the heat of the bottom wall of the installation cavity 111 away from the wind distribution cavity 112, and the bottom wall of the installation cavity 111 away from the wind distribution cavity 112 is used to transmit the light emitted by the lamp tube 20.

[0077] The partition plate 13 is provided with a vent hole 131, which communicates with the installation cavity 111 and the air distribution cavity 112. The cooling gas in the installation cavity 111 can flow into the air distribution cavity 112 through the vent hole 131 and be discharged through the air outlets 102 at both ends of the air distribution cavity 112. The number of the vent holes 131 can be one or more, for example, the vent holes 131 can be strip holes extending along the first direction X, or a plurality of vent holes 131 can be arranged at intervals along the first direction X.

[0078] The lampshade 10 provided in the embodiment of the present application includes an outer shell 12 and a partition 13, and the partition 13 divides the accommodating cavity 11 into an installation cavity 111 and an air distribution cavity 112. The two air inlets 101 are connected to the opposite ends of the installation cavity 111, and the two air outlets 102 are connected to the opposite ends of the air distribution cavity 112. In this way, the cooling gas discharged from the installation cavity 111 first enters the air distribution cavity 112 and then is discharged from the air outlet 102. By setting the air distribution cavity 112, the cooling gas flows into the air distribution cavity 112 and flows out from the air distribution cavity 112 after fully dissipating the heat of the lamp tube 10 in the installation cavity 111, so that the cooling efficiency in the installation cavity 111 is relatively high.

[0079] Please continue to refer to Figure 4 In some embodiments, the partition 13 is provided with at least one row of ventilation holes 131 spaced apart along its length direction, wherein the cross-sectional area of ​​the ventilation holes 131 in the middle of the partition 13 is larger than the cross-sectional area of ​​the ventilation holes 131 at both ends of the partition 13, and / or the density of the ventilation holes 131 in the middle of the partition 13 is larger than the density of the ventilation holes 131 at both ends of the partition 13.

[0080] Optionally, two lamp tubes 20 are provided, and two rows of vent holes 131 are provided on the partition 13, and each row of vent holes is provided corresponding to one lamp tube 20. It can be understood that the vent holes 131 can also be provided in one row or more than two rows. Figure 4 As shown, in some embodiments, the vent holes 131 are all circular holes, and the aperture of the vent holes 131 in the middle of the partition 13 is larger than the aperture of the vent holes 131 at both ends of the partition 13, so that the cross-sectional area of ​​the vent holes 131 in the middle of the partition 13 is larger than the cross-sectional area of ​​the vent holes 131 at both ends of the partition 13, and therefore, the vent holes 131 with a larger cross-sectional area have a larger ventilation volume. It can be understood that the vent holes 131 can also be other shapes such as square, as long as the cross-sectional area of ​​the vent holes 131 in the middle of the partition 13 is larger than the cross-sectional area of ​​the vent holes 131 at both ends of the partition 13.

[0081] In some embodiments, the cross-sectional areas of multiple through holes can be set to be equal, but the density of the vents 131 in the middle of the partition 13 is greater than the density of the vents 131 at both ends of the partition 13, so that the ventilation volume in the middle of the partition 13 can be greater than the ventilation volume at both ends of the partition 13.

[0082] Since the cooling gas flows into the installation cavity 111 from the opposite ends of the installation cavity 111 respectively, the flow rate of the cooling gas gradually decreases from the two ends to the middle of the installation cavity 111. In this regard, the embodiment of the present application sets the air outlet in the middle of the partition 13 to be greater than the air outlet at the end of the partition 13, which is conducive to the rapid flow of the cooling gas in the air vent 131 in the middle of the partition 13, so that the cooling gas is evenly distributed in the installation cavity 111 and the wind equalization cavity 112, thereby improving the cooling uniformity and cooling effect.

[0083] The infrared baking device 100 provided in the embodiment of the present application can adjust the structure and arrangement of the vent holes 131, and can adjust the ventilation volume in the middle and both ends of the partition 13, which is beneficial to the uniform distribution of the cooling gas and improves the uniformity and cooling effect of the cooling.

[0084] In some embodiments, the cross-sectional area of ​​the plurality of vents 131 gradually decreases from the middle to the ends of the partition 13 , and / or the density of the plurality of vents 131 is configured to gradually decrease from the middle to the ends of the partition 13 .

[0085] The partition 13 extends in a strip shape, and along the length direction of the partition 13, the cross-sectional area of ​​the plurality of vents 131 gradually decreases from the middle of the partition 13 to both ends; when the vents 131 are circular holes, the apertures of the plurality of vents 131 gradually decrease from the middle of the partition 13 to both ends. Optionally, the cross-sectional areas of the two outermost vents 131 on both sides of the partition 13 can be set equal to allow air to flow evenly at both ends. Optionally, the cross-sectional areas of the plurality of vents 131 decrease equidistantly from the middle of the partition 13 to both ends.

[0086] The density of the plurality of vent holes 131 is configured to gradually decrease from the middle of the partition 13 to both ends, that is, a larger number of vent holes 131 with a higher density are arranged in the middle of the partition 13, and a smaller number of vent holes 131 with a lower density are arranged along both ends of the partition 13.

[0087] It is understandable that the cross-sectional area of ​​the plurality of vent holes 131 may be gradually reduced from the middle to the two ends of the partition 13, and the density of the plurality of vent holes 131 may be configured to gradually reduce from the middle to the two ends of the partition 13.

[0088] Since the air inlet 101 is located at both ends of the accommodating cavity 11, the flow rate of the cooling gas gradually decreases from the two ends of the partition 13 to the middle. By configuring the cross-sectional area of ​​the vent holes 131 and the density of the vent holes 131, the ventilation volume of the vent holes 131 can be gradually reduced from the middle of the partition 13 to the two ends, thereby improving the ventilation rate in the middle of the partition 13, and the ventilation volume can change evenly, which is beneficial to improving the uniformity of cooling.

[0089] In other embodiments, only a number of vents 131 in the middle of the partition 13 may have a first cross-sectional area, and the remaining vents 131 may have a second cross-sectional area, and the first cross-sectional area is larger than the second cross-sectional area, that is, only the ventilation volume in the middle of the partition 13 is increased.

[0090] In other embodiments, the vent holes 131 in the partition 13 may also be set to have a uniform size according to the length of the lampshade 10 .

[0091] like Figures 3 to 5 As shown, in some embodiments, a sub-cavity 1113 and a first flow channel 1111 respectively extending along the length direction are provided in the installation cavity 111, the sub-cavity 1113 is used to accommodate the lamp tube 20, and the two ends of the first flow channel 1111 are respectively connected to the two air inlets 101, and the first flow channel 1111 has a first air hole 1111a connected to the sub-cavity 1113.

[0092] The first air holes 1111a on the first flow channel 1111 may be strip holes extending along the first direction X, or the number of the first air holes 1111a is multiple and the multiple first air holes 1111a are arranged at intervals along the first direction X. Since the two ends of the first flow channel 1111 are respectively connected to the two air inlets 101, the cooling gas can flow into the first flow channel 1111 from the air inlet 101, and then flow into the sub-cavity 1113 through the first air holes 1111a to cool the lamp tube 20 in the sub-cavity 1113. If the cooling gas flows only from the end of the lamp tube 20, the cooling effect of the middle part of the lamp tube 20 may be poor. In the embodiment of the present application, by setting the first flow channel 1111, the cooling gas can be introduced into the sub-cavity 1113 along the first flow channel 1111, and the low-temperature cooling gas can form a comb-shaped airflow along the axial direction of the lamp tube 20, and blow directly to the lamp tube 20 along the radial direction of the lamp tube 20, so that the cooling effect is good and the cooling uniformity is good.

[0093] Please refer to Figure 1 , Figure 3 In some embodiments, the lampshade 10 includes two first flow guides 141, which are arranged in the installation cavity 111 and located on opposite sides of the shell 12 along its width direction. The first flow guides 141 extend along the length direction of the lampshade 10, and a first flow channel 1111 is formed between each first flow guide 141 and the side wall of the shell 12. The two first flow channels 1111 are respectively located on opposite sides of the sub-cavity 1113.

[0094] The first flow guide 141 is used to separate the sub-cavity 1113 and the first flow channel 1111. The sub-cavity 1113 is connected to the wind equalizing cavity 112 through the vent hole 131 on the partition 13. The first flow channel 1111 is not connected to the wind equalizing cavity 112 so as to introduce as much gas as possible into the sub-cavity 1113 for cooling the lamp tube 20.

[0095] The first flow guide 141 can be a sheet to reduce the occupied space. Optionally, one end of the first flow guide 141 along its height direction is fixedly connected to the partition 13, and the other end extends to the bottom of the outer shell 12, so that the first flow guide 141 can separate the sub-cavity 1113 and the first flow channel 1111 along the width direction of the installation cavity 111.

[0096] In some embodiments, the first flow guide 141 is provided with a vertical portion and an inclined portion along its height direction, so that the first flow guide 141 is bent, and the inclined portion can guide the cooling gas toward the bottom of the installation cavity 111. The bottom of the installation cavity 111 is used to emit infrared rays, which is more conducive to reducing the temperature rise of the gas produced by the pole piece in the bottom area. The first flow guide 141 can also be other structures, for example, the first flow guide 141 is flat.

[0097] By adopting the above technical solution, the two first flow guides 141 separate two first flow channels 1111 and a sub-cavity 1113 in the installation cavity 111, and the two first flow channels 1111 are respectively located on opposite sides of the sub-cavity 1113 along its width direction, so that the cooling gas can enter the sub-cavity 1113 from both sides of the sub-cavity 1113, and the uniformity of the incoming air is better.

[0098] In other embodiments, the number of the first flow channel 1111 may be one or more than two. When the number of the first flow channel 1111 is one, the first flow channel 1111 may be disposed in the middle of the sub-cavity 1113 along its width direction.

[0099] In other embodiments, the sub-cavity may also be directly connected to the two air inlets 101 .

[0100] Please refer to Figure 3 , Figure 4 In some embodiments, the orthographic projections of the vent holes 131 toward the accommodating cavity 11 are all located in the sub-cavity 1113 , and the wind balancing cavity 112 is connected to the sub-cavity 1113 through the vent holes 131 .

[0101] The partition 13 is not provided with a vent hole 131 at a position corresponding to the first flow channel 1111 , and the first flow channel 1111 and the wind equalizing cavity 112 are airtight, so that more gas can flow into the sub-cavity, and the cooling effect of the sub-cavity is better.

[0102] Please refer to Figures 3 to 10 In some embodiments, the first air hole 1111 a is a strip-shaped hole extending along the first flow channel 1111 .

[0103] The first air hole 1111a can be arranged between the first guide member 141 and the bottom of the shell 12. The first guide member 141 is arranged with a portion of its bottom edge along the length direction spaced from the bottom of the shell 12, so that the gap between the first guide member 141 and the shell 12 forms the first air hole 1111a.

[0104] During installation, the lamp tube 20 is installed in the infrared baking device 100, with one side of the installation cavity 111 close to the ground and one side of the wind equalization cavity 112 away from the ground, so that cold air sinks toward the ground and warm air tends to rise away from the ground.

[0105] By setting the first air hole 1111a as a strip hole extending along the first flow channel 1111, the cooling gas can flow evenly into the sub-cavity 1113 along the first air hole 1111a; by setting the first air hole 1111a between the first flow guide 141 and the bottom of the outer shell 12, the cooling gas can sink, and the cooling gas flows to the bottom of the outer shell 12 through the first air hole 1111a to cool the bottom of the outer shell 12, and then the cooling gas rises to the lamp tube 20, and then flows to the uniform air cavity 112 through the partition 13.

[0106] Please refer to 3 to Figure 8 In some embodiments, the first flow guide 141 is provided with flow blocking portions 1412 at both ends of the sub-cavity 1113 , respectively, and the flow blocking portions 1412 are used to shield a portion of the first air hole 1111 a .

[0107] The first flow guide 141 can be supported on the bottom of the housing 12 by the flow blocking portion 1412. The flow blocking portion 1412 can be a baffle with through holes. The baffle can cover part of the first air hole 1111a and the through holes in the baffle can be ventilated. By providing the flow blocking portion 1412, the ventilation volume of the first air hole 1111a at the end of the sub-cavity 1113 is reduced. It can be understood that the flow blocking portion 1412 can also be other structures that cover part of the first air hole 1111a.

[0108] Since the end of the sub-cavity 1113 is closer to the air inlet 101 and the gas flow rate here is faster, by providing a flow blocking portion 1412 at the end of the first flow guide 141, the ventilation volume of the first air hole 1111a at the end of the sub-cavity 1113 can be reduced, which is conducive to achieving uniform ventilation and heat dissipation.

[0109] Please refer to Figures 3 to 10 In some embodiments, a second flow channel 1112 extending along the length direction is further provided in the installation cavity 111, the second flow channel 1112 is provided between the two first flow channels 1111 and each lamp tube 20 is located between the second flow channel 1112 and one of the first flow channels 1111; the two ends of the second flow channel 1112 are respectively connected to the two air inlets 101, the second flow channel 1112 has a second air hole 1421 connected to the sub-cavity 1113, and the second air hole 1421 faces the lamp tube 20 or faces the surface of the installation cavity 111 away from the air balancing cavity 112.

[0110] The second flow channel 1112 is used to supply cooling gas to the sub-cavity 1113. The two ends of the second flow channel 1112 are respectively connected to the two air inlets 101, and the second flow channel 1112 has a second air hole 1421 connected to the sub-cavity 1113, so that the cooling gas can enter the second flow channel 1112 from the two air inlets 101 and flow along the second flow channel 1112, and flow into the sub-cavity 1113 through the second air hole 1421 to cool the sub-cavity 1113. Optionally, the infrared baking device 100 includes two lamp tubes 20, each of which is respectively arranged between a first flow channel 1111 and the second flow channel 1112. The second flow channel 1112 is not connected to the wind balancing chamber 112, so as to prevent the cooling gas in the second flow channel 1112 from directly flowing out of the wind balancing chamber 112.

[0111] In some embodiments, the number of the second flow channels 1112 may be multiple, for example, two second flow channels 1112 are arranged in parallel in the middle of the accommodating cavity 11 .

[0112] In some embodiments, the second air holes 1421 face the surface of the mounting cavity 111 away from the wind-distributing cavity 112, and the cooling gas flowing out of the second air holes 1421 first contacts the bottom of the mounting cavity 111, and then rises to the lamp tube 20. The first air holes 1111a and the second air holes 1421 are respectively arranged on both sides of the lamp tube 20 to form an enveloping cooling effect. In other embodiments, the second air holes 1421 may also be arranged toward the middle of the lamp tube 20. By adopting the above technical solution, the second flow channel 1112 is arranged between the two first flow channels 1111, and can supply cooling gas to the middle of the sub-cavity 1113, which is conducive to achieving uniform heat dissipation along the width direction of the sub-cavity 1113. The first flow channel 1111 and the second flow channel 1112 blow air toward both sides of the lamp tube 20, respectively, and the cooling effect is better.

[0113] like Figure 3 , Figure 8 As shown, in some embodiments, the lampshade 10 further includes a second flow guide 142 disposed in the installation cavity 111 , and the second flow guide 142 is fixedly connected to the partition 13 and together forms a second flow channel 1112 .

[0114] Optionally, the second guide 142 is substantially U-shaped and includes a bottom plate and side plates vertically connected to both sides of the bottom plate, the bottom plate is arranged opposite to the partition 13, and the two side plates are connected to the partition 13. The second guide 142 can also be other structures, for example, the second guide 142 is semicircular.

[0115] By arranging a second guide member 142 in the installation cavity 111, the second guide member 142 and the partition 13 can be used to form a second flow channel 1112. The first flow channel 1111 and the second flow channel 1112 can divert the cooling gas entering the accommodating cavity 11 from the air inlet 101, further improving the cooling uniformity.

[0116] Please continue to refer to Figure 3 and Figure 8 In some embodiments, the second air hole 1421 is a strip hole extending along the second air guide 142 , and the width of the second air hole 1421 at the end of the second air guide 142 is smaller than the width of the second air hole 1421 in the middle of the second air guide 142 .

[0117] The second air hole 1421 may pass through both ends of the second air guide 142 along its length direction. The width of the second air hole 1421 at the end of the second air guide 142 is smaller than the width of the second air hole 1421 in the middle of the second air guide 142. The width of the second air hole 1421 may change gradually or in stages from the middle toward the end, so that the end of the second air hole 1421 is narrower and the middle is wider, which can increase the ventilation speed in the middle of the second air guide 142.

[0118] Since the end of the second guide member 142 is closer to the air inlet 101 and the middle is farther from the air inlet 101, by setting the cross-sectional area of ​​the second air hole 1421 at the end of the second guide member 142 to be smaller than the ventilation area of ​​the second air hole 1421 in the middle of the second guide member 142, the ventilation volume and ventilation speed in the middle of the second guide member 142 can be increased, thereby further improving the uniformity of cooling.

[0119] Please refer to Figure 4 , Figure 5 In some embodiments, the lampshade 10 further includes two partitions 143, which are respectively arranged at intervals relative to the two end walls of the outer shell 12 along its length direction and are both connected to the partition 13. The partitions 143, the partition 13 and the two side walls of the outer shell 12 along its width direction together form a diversion cavity 1114 connected to the air inlet 101; the partition 143 is provided with a third air hole 1431 connected to the second flow channel 1112, and the two first flow channels 1111 are respectively connected to the opposite ends of the diversion cavity 1114 along the width direction of the outer shell 12.

[0120] The partition 143 may be in the form of a sheet and may extend along the height direction of the housing 12. The two partition plates 13 are respectively connected to the opposite ends of the partition plate 13. Each partition 143 separates a diversion chamber 1114 on one side of the accommodating chamber 11. The third air hole 1431 is a through hole that passes through the partition 143 and is used to connect the diversion chamber 1114 with the second flow channel 1112. The third air hole 1431 may be in a circular or strip shape. The two sides of the partition 143 are respectively connected to the two first flow guides 141. The width of the partition 143 is smaller than the width of the housing 12, so that the first flow channel 1111 can be connected to the diversion chamber 1114. It can be understood that in other embodiments, the width of the partition 143 is equal to the width of the housing 12, and then the partition 143 is also provided with two fourth air holes, each of which is connected to a first flow channel 1111.

[0121] Please also refer to Fig. 9 , Fig.10 The cooling gas can enter the diversion cavity 1114 from the air inlet 101, and then flow into the sub-cavity 1113 through the two first flow channels 1111 and the second flow channel 1112. The cooling gas cools the lamp tube 20 and the bottom of the sub-cavity 1113, and then the cooling gas passes through the partition 13 into the wind equalizing cavity 112, and is discharged from the air outlet 102.

[0122] By adopting the above technical solution, each branch cavity 1114 is connected to its corresponding air inlet 101, and the cooling gas can enter the branch cavity 1114 from the air inlet 101, and then flow into the sub-cavity 1113 through the two first flow channels 1111 and the second flow channel 1112, which is equivalent to dividing the gas path into three paths, thereby improving the uniformity of cooling.

[0123] like Figure 3 As shown, in some embodiments, the infrared baking device 100 includes at least two lamp tubes 20 , and the at least two lamp tubes 20 are arranged at intervals along the width direction of the lamp cover 10 .

[0124] Since the embodiment of the present application forms two first flow channels 1111 on both sides of the lampshade 10, the two first flow channels 1111 can blow air toward at least two lamp tubes 20 respectively. Furthermore, the second flow channel 1112 located between the two first flow channels 1111 can blow air toward the space between the two lamp tubes 20. The infrared baking device 100 can be provided with more lamp tubes 20, thereby improving the baking efficiency.

[0125] Please refer to Figure 3 In some embodiments, the housing 12 includes a main shell 121 with an opening at one end and a glass plate 122 covering the opening. The glass plate 122 is located on the side of the installation cavity 111 away from the wind equalizing cavity 112, and the glass plate 122 is used to transmit the light emitted by the lamp tube 20.

[0126] The main shell 121 can be made of high-strength material (such as plastic) and has good explosion-proof performance. The glass plate 122 is made of transparent glass and can transmit the light emitted by the lamp tube 20. Optionally, the glass plate 122 is a high-strength quartz glass plate 122.

[0127] Please refer to Figures 3 to 10 , the glass plate 122 is located at the bottom of the housing 12, that is, the glass plate 122 is located on the side of the accommodating chamber 11 away from the wind-distributing chamber 112, and the cooling gas can not only cool the lamp tube 20, but also cool the glass plate 122. During baking, the temperature of the glass plate 122 can be lowered by the cooling gas, thereby reducing the risk of explosion caused by the contact between the gas in the use environment and the high-temperature glass plate 122.

[0128] In some embodiments, the infrared baking device 100 further includes a detection mechanism (not shown), and the detection mechanism includes at least one of an air pressure detection element, a flow meter, and a temperature detector.

[0129] The air pressure detector and flow meter can be installed at the air inlet 101 and the air outlet 102. By detecting the air pressure and gas flow at the air inlet 101 and the air outlet 102, it is possible to detect whether there is an air leakage problem in the accommodating cavity 11, thereby detecting whether the glass plate 122 is damaged.

[0130] The temperature detector may be mounted on the lamp tube 20. The temperature detector may be, for example, a thermocouple, and the temperature detector may detect the temperature of the lamp tube 20. It is understood that the temperature detector may also be disposed at other locations, such as on the inner wall of the housing 12.

[0131] The infrared baking device 100 provided in the embodiment of the present application forms an air path in the lampshade 10. By setting a detection mechanism, real-time monitoring and closed-loop signal feedback of parameters such as internal and external gas, flow, temperature, etc. of the lampshade 10 can be achieved, which is conducive to stable heat dissipation and improved safety.

[0132] Please refer to Figures 1 to 10 Some embodiments of the present application provide an infrared baking device 100, including a lampshade 10 and a lamp tube 20. A accommodating cavity 11 is provided in the lampshade 10, and an air inlet 101 and an air outlet 102 are provided at both ends of the lampshade 10 along its length direction. The lampshade 10 includes an outer shell 12 and a partition 13 arranged in the outer shell 12. The outer shell 12 includes a main shell 121 and a glass plate 122. The partition 13 divides the accommodating cavity 11 into an installation cavity 111 and an air distribution cavity 112. A vent hole connecting the installation cavity 111 and the air distribution cavity 112 is provided on the partition 13; the installation cavity 111 is used to accommodate the lamp tube 20, the two air inlets 101 are respectively connected to the opposite ends of the installation cavity 111, and the two air outlets 102 are respectively connected to the opposite ends of the air distribution cavity 112.

[0133] like Fig. 9 , Fig.10 As shown, the cooling gas enters the installation cavity 111 from the two air inlets 101 , and the cooling gas can cool the lamp tube 20 and the glass plate 122 . Then the cooling gas passes through the partition 13 into the air distribution cavity 112 , and is discharged from the two air outlets 102 .

[0134] In some embodiments, a sub-cavity 1113, two first flow channels 1111 and a second flow channel 1112 are provided in the installation cavity 111, the air inlet 101 is connected to the two first flow channels 1111 and the second flow channel 1112, and the first flow channel 1111 is provided with a first air hole 1111a connecting to the sub-cavity 1113, and the second flow channel 1112 is provided with a second air hole 1421 connecting to the sub-cavity 1113. In this way, the cooling gas can be divided into three paths, and the cooling uniformity is better.

[0135] Please refer to Figures 1 to 10 An embodiment of the second aspect of the present application provides a drying device, including the infrared baking device 100 provided in the first aspect.

[0136] The drying device may include an oven, and one or more infrared baking devices 100 are contained in the oven. In the drying device provided in the embodiment of the present application, the infrared baking device 100 has good explosion-proof performance, which improves the overall explosion-proof performance and safety of the drying device. The drying device can be applied to a variety of use environments, which improves the scope of application of the drying device.

[0137] The infrared drying device also includes a cooling air duct structure, which includes an air inlet pipe 30, an air outlet pipe 40 and a high-pressure fan (not shown in the figure). The air inlet pipe 30 is connected to the air inlet 101, and the air outlet pipe 40 is connected to the air outlet 102. The high-pressure fan is used to guide the cooling gas to the air inlet pipe 30 and the air inlet 101.

[0138] When the drying equipment includes a plurality of infrared baking devices 100 , the cooling air duct structure is connected to the accommodating cavities 11 of the plurality of infrared baking devices 100 , forming a complete cooling air duct.

[0139] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An infrared baking device, characterized in that: include: Light tubes; A lampshade, wherein a housing cavity is provided inside the lampshade, and the lamp tube is arranged in the housing cavity; the lampshade is provided with air inlets at both ends along its length direction, and the lampshade is also provided with an air outlet, the air inlet and the air outlet are both connected to the housing cavity, and the air pressure inside the housing cavity is greater than the air pressure outside the housing cavity.

2. The infrared baking device according to claim 1, characterized in that: The air outlets are arranged at both ends of the lampshade along the length direction.

3. The infrared baking device according to claim 2, characterized in that: The lampshade comprises a shell and a partition disposed in the shell, wherein the partition divides the accommodating cavity into an installation cavity and an air distribution cavity, and the partition is provided with an air vent connecting the installation cavity and the air distribution cavity; The installation cavity is used to accommodate the lamp tube, the two air inlets are respectively communicated with the opposite ends of the installation cavity, and the two air outlets are respectively communicated with the opposite ends of the air distribution cavity.

4. The infrared baking device according to claim 3, characterized in that: The partition is provided with at least one row of ventilation holes spaced apart along its length direction, wherein: The cross-sectional area of ​​the vent holes in the middle of the partition is larger than the cross-sectional area of ​​the vent holes at both ends of the partition, and / or, The density of the vent holes in the middle of the partition is greater than the density of the vent holes at both ends of the partition.

5. The infrared baking device according to claim 3, characterized in that: The installation cavity is provided with a sub-cavity and a first flow channel respectively extending along the length direction thereof. The sub-cavity is used to accommodate the lamp tube and the sub-cavity is connected with the wind equalizing cavity. The two ends of the first flow channel are respectively connected with the two air inlets. The first flow channel has a first air hole connected with the sub-cavity.

6. The infrared baking device according to claim 5, characterized in that: The orthographic projections of the vent holes toward the accommodating cavity are all located in the sub-cavity, and the wind distribution cavity is connected to the sub-cavity through the vent holes.

7. The infrared baking device according to claim 5, characterized in that: The lampshade also includes two first flow guides, which are arranged in the installation cavity and respectively located on opposite sides of the shell along its width direction. The first flow guides extend along the length direction of the lampshade, and a first flow channel is formed between each of the first flow guides and the side wall of the shell.

8. The infrared baking device according to claim 7, characterized in that: The first air hole is a strip-shaped hole extending along the first flow channel.

9. The infrared baking device according to claim 8, characterized in that: The first flow guide member is provided with flow blocking portions at both ends of the sub-cavity along the length direction thereof, respectively, and the flow blocking portions are used to shield a portion of the first air passage hole.

10. The infrared baking device according to claim 7, characterized in that: A second flow channel extending along the length direction is also provided in the installation cavity, the second flow channel is provided between the two first flow channels and each of the lamp tubes is located between the second flow channel and one of the first flow channels; the two ends of the second flow channel are respectively connected to the two air inlets, the second flow channel has a second air hole connected to the sub-cavity, and the second air hole faces the lamp tube or the surface of the installation cavity away from the air equalization cavity.

11. The infrared baking device according to claim 10, characterized in that: The lampshade further comprises a second flow guide member arranged in the installation cavity, wherein the second flow guide member is fixedly connected to the partition plate and together forms the second flow channel.

12. The infrared baking device according to claim 11, characterized in that: The second air hole is a strip hole extending along the second air guide, and the width of the second air hole at the end of the second air guide is smaller than the width of the second air hole at the middle of the second air guide.

13. The infrared baking device according to claim 11, characterized in that: The lampshade further comprises two partitions, which are respectively arranged opposite to the two end walls of the housing along the length direction thereof and are both connected to the partition, and the partitions, the partition and the two side walls of the housing along the width direction thereof jointly form a diversion cavity connected to the air inlet; The partition is provided with a third air hole communicating with the second flow channel, and the two first flow channels are respectively communicated with opposite ends of the diversion cavity along the width direction of the shell.

14. The infrared baking device according to any one of claims 7 to 13, characterized in that: The shell includes a main shell with an opening at one end and a light-transmitting plate covering the opening, the light-transmitting plate is located on the side of the installation cavity away from the air equalization cavity, the light-transmitting plate is used to transmit the light emitted by the lamp tube, and the first air hole is formed between the first guide member and the light-transmitting plate.

15. The infrared baking device according to any one of claims 1 to 13, characterized in that: The infrared baking device comprises at least two lamp tubes, and the at least two lamp tubes are arranged at intervals along the width direction of the lampshade.

16. A drying device, characterized in that: It comprises the infrared baking device as described in any one of claims 1 to 15, and the infrared baking device is used to provide a heat source for the drying equipment.

17. The drying device according to claim 16, characterized in that: The infrared baking device also includes a cooling air duct structure, which includes an air inlet pipe, an air outlet pipe and a high-pressure fan. The air inlet pipe is connected to the air inlet, and the air outlet pipe is connected to the air outlet.

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