TW202212757A - Infrared heating device with hot air generating function - Google Patents

Abstract

An infrared heating device with hot air generating function used for heating work objects comprises at least one wind generator, a pipeline module and a plurality of infrared heaters, wherein each infrared heater includes a heating body, an infrared heating plate and an air supply duct. The heating body is used to heat the infrared heating plate so that the infrared heating plate generates infrared radiation heat and radiates to the work object. The air supply duct is used to transport the wind to receive the heat of the heating body to generate hot air. The infrared heating plate is provided with a plurality of exhaust holes. These exhaust holes are used to exhaust hot air to heat the work object and blow the solvent on the surface of the work object to both sides, and then the exhaust air is used to take the solvent away to achieve rapid effect of drying work objects.

Description

Infrared heating device with hot air generating function

An infrared heating device for drying work objects, especially an infrared heating device capable of generating hot air heating.

Printed circuit board (PCB) is to print the required circuit layout on the multi-layer board body, and then composite the multi-layer board to form the circuit board body, and then the board surface of the board body must be covered with a layer of solvent-containing ink (or It is called insulating green paint), and is placed in a special oven for drying, so that the solvent in the ink layer on the board is volatilized to achieve the purpose of drying.

In the above-mentioned ink drying procedure, the existing method is to use an infrared heating oven to dry the board body, and the board body is heated by infrared rays through an infrared heating unit. However, since the heating method only relies on the radiant heat of infrared rays to heat the plate body, the heating efficiency is not high, and the drying process is easily prolonged, resulting in low mass production efficiency and increased manufacturing cost.

Therefore, how to solve the above-mentioned problems and deficiencies of the prior art is the subject that the relevant industry is eager to develop.

The main purpose of the present invention is to set up an air source to be heated by the heating body to form hot air, and use the hot air to heat the work, so as to speed up the efficiency of the drying process.

In order to achieve the above-mentioned purpose, the infrared heating device with hot air generating function of the present invention is used to heat the work, and includes at least one air generator, a pipeline module and a plurality of infrared heaters, wherein the air generator is used for heating Generating wind; the pipeline module is connected to the wind generator for conveying wind; a plurality of infrared heaters are connected to the pipeline module to receive wind, wherein each infrared heater includes a heating body and an infrared heating plate And an air supply duct, the heating body is used to heat the infrared heating plate, so that the infrared heating plate generates infrared radiation heat and radiates to the work object, the air supply duct is used to transmit the wind to receive the heat of the heating body to generate hot air, the infrared radiation The heating plate is provided with a plurality of exhaust holes, and the exhaust holes are used to discharge hot air to heat the work.

The following describes in detail with specific embodiments, when it is easier to understand the purpose, technical content, characteristics and effects of the present invention.

Please refer to Figures 1 to 6, the infrared heating device 1 with hot air generating function of the present invention is used to heat the work S, so that the ink coated on the work S is dried, including at least A wind generator 2 , a pipeline module 3 and a plurality of infrared heaters 4 , wherein the pipeline module 3 includes a plurality of pipelines for connecting the wind generator 2 and the infrared heaters 4 .

The wind generator 2 is used to generate wind, the pipeline module 3 is connected to the wind generator 2 to convey the wind, and a plurality of infrared heaters 4 are connected to the pipeline module 3 to receive the wind, wherein the wind generator 2 The generated air system is sent to the plurality of infrared heaters 4 through the pipeline module 3 .

Each infrared heater 4 includes a cavity 41 , a heating body 42 and an infrared heating plate 43 , wherein the cavity 41 is provided with an accommodating space 411 and an opening 412 connected to the accommodating space 411 , and the heating body 42 is located in the cavity 411 . In the accommodating space 411 of the body 41 and corresponding to the opening 412, the infrared heating plate 43 covers the opening 412 of the cavity 41 and is used to receive the infrared radiant heat generated by the heating body 42 and direct the infrared radiant heat to the working object. S radiation is used to heat the work object S, as shown in FIG. 5 , and the heating body 42 is fixed in the cavity 41 through a bracket 46 .

Please refer to FIGS. 3 to 4 , each infrared heater 4 further includes an air supply duct 44 . The air supply duct 44 is disposed on the cavity 41 and communicated with the accommodating space 411 . It is transported to be close to the heating body 42 to receive the heat generated by the heating body 42, thereby generating hot air. In addition, the wind additionally has the function of cooling the heating body 42 to avoid damage to the heating body 42 caused by overheating. The infrared heat receiving plate 43 is provided with a plurality of exhaust holes 431 . The exhaust holes 431 are communicated with the accommodating space 411 and are used to discharge the hot air into the accommodating space 411 .

In this embodiment, the air supply duct 44 includes an air supply pipe body 45 and an air inlet portion 451 and an air outlet portion 452 respectively disposed at both ends of the air supply pipe body 45. The air inlet portion 451 has an air inlet port 453. The air outlet portion 452 has an air outlet 454, and the air supply pipe body 45 is provided with an air supply passage 455 that communicates with the air inlet 453 and the air outlet 454. The air outlet portion 452 is located in the accommodating space 411 and faces the heating The body 42 is extended so that the air outlet 454 is close to the heating body 42 so that the wind can easily contact the heating body 42 to generate hot air. Specifically, the air outlet 454 is disposed corresponding to the heating body 42 , for example, the air outlet 454 of the air outlet portion 452 is disposed in such a way as to be directly aligned with the heating body 42 , so that the air can directly contact the heating body 42 to generate hot air.

Please refer to the fourth to fifth figures, the air outlet portion 452 is located in the accommodating space 411 and is close to the heating body 42, and the air outlet portion 452 and the heating body 42 are substantially located on approximately the same plane, In this way, the wind energy can be directly blown onto the heating body 42 at the shortest distance, so as to accelerate the efficiency of hot air generation. Specifically, the heating body 42 has a heating radiation surface 421 , the heating radiation surface 421 is disposed facing the exhaust holes 431 of the infrared heating plate 43 , and the opening direction S1 of the air outlet 452 is perpendicular to the heating radiation surface 421 In this way, the distance between the air outlet 452 and the heating body 42 can be the shortest, so as to generate hot air quickly. In addition, in this embodiment, the center of the air outlet 454 is also aligned with the heating radiation surface 421, in other words, the center of the air outlet 454 and the heating radiation surface 421 are located on the same plane, so that at least half of the wind energy can be It directly contacts the heating body 42, and the other half of the wind can flow along the surface of the heating radiation surface 421, thereby achieving better hot wind generation efficiency.

In this embodiment, as shown in the second and third figures, the infrared heat receiving plate 43 is provided with a plurality of exhaust holes 431 , which are communicated with the accommodating space 411 and are used to discharge the hot air into the accommodating space 411. Therefore, please refer to FIG. 5 , when the air is transported from the air supply duct 44 into the accommodating space 411 of the cavity 41 , the hot air will be heated by the heating body 42 in the accommodating space 411 to generate hot air, and the hot air can be regenerated. The exhaust holes 431 of the infrared heating plate 43 are discharged to the accommodating space 411 to spray the workpiece S, thereby achieving the purpose of heating the workpiece S.

In this embodiment, the diameter of each exhaust hole 431 is smaller than the diameter of the air outlet 454 , so that the gas pressure of the hot air in the accommodating space 411 can be higher than the atmospheric pressure outside the cavity 41 and be in a positive pressure state , so that the hot air can be ejected from the exhaust hole 431 to the workpiece S in a high-pressure and high-speed manner. In addition, the diameter of the air inlet 453 of the air supply duct 44 is larger than the diameter of the air outlet 454. According to fluid mechanics, the air can be in a high-speed and high-pressure state when it is ejected from the air outlet 454, so as to be directly blown onto the heating body 42 and contact with Heated into hot air. It is worth mentioning that in addition to the function of heating the work S, the hot air can also blow the solvent on the surface of the work S to both sides, and then use the exhaust air to take away the solvent to achieve the effect of fast drying.

Please refer to FIGS. 7 to 8, another embodiment of the infrared heater 4 in the infrared heating device 1 with hot air generating function of the present invention, the infrared heater 5 in this embodiment omits the infrared heating The cavity 41 in the device 4 only includes the heating body 51, the infrared heating plate 52 and the air supply duct 53, wherein the heating body 51 and the air supply duct 53 are arranged on the infrared heating plate 52, and the infrared heating plate 52 is provided with a ventilation channel 54 and A plurality of exhaust holes 521 communicated with the ventilation channel 54. The ventilation channel 54 is connected with the air supply duct 53 and the exhaust holes 521. It is heated by the infrared heating plate 52 heated by the heating body 51 to generate hot air, and the hot air is discharged to the ventilation channel 54 through the exhaust hole 521 to heat the work object. In this embodiment, the infrared heat receiving plate 52 is provided with an accommodating groove 522, the heating body 51 is installed and inserted in the accommodating groove 522, and the ventilation channel 54 is arranged along the extending direction of the heating body 51, so as to obtain a better The effect of heating air, and the opening direction of the exhaust hole 521 is perpendicular to the extending direction of the ventilation channel 54 to match the shape design of the infrared heating plate 52 .

It can be understood that, as can be seen from the above two embodiments, the present invention does not limit the detailed structure of the infrared heater, as long as the air supply duct can transport the air to a place that can receive the heat of the heating body to generate hot air, and then discharge the hot air to Heating the work is the technical feature of the present invention. Therefore, in the first embodiment, the air system is transported by the air supply duct 44 to directly contact the heating body 42 so as to directly receive the heat of the heating body 42 to generate hot air. However, in the second embodiment, the wind does not directly contact the heating body 51 , but generates hot air by the heating effect of the infrared heating plate 52 heated by the heating body 51 . Since the heat is received from the heating body 51, the wind here can be regarded as indirectly receiving the heat of the heating body 51 to generate hot air.

To sum up, the present invention uses the heating body to heat the infrared heating plate, so that the infrared heating plate generates infrared radiant heat and radiates to the work object, and at the same time uses the air supply duct to transport the air to receive the heat of the heating body to generate hot air, And use the plurality of exhaust holes of the infrared heating plate to discharge the hot air to heat the work. Because the heating method of the present invention includes radiant heat and convective heat, the drying process efficiency of the workpiece S can be accelerated, and the mass production efficiency can be effectively improved and the manufacturing time and cost can be reduced.

Only the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made according to the features and spirits described in the scope of the application of the present invention shall be included in the scope of the application for patent of the present invention.

1: Infrared heating device 2: wind generator 3: Pipeline module 4: Infrared heater 41: Cavity 411: accommodating space 412: Opening 42: Heating body 421: Heating Radiant Surface 43: Infrared heating plate 431: exhaust hole 44: Air supply duct 45: Air supply pipe body 451: Air Inlet 452: Air outlet 453: air inlet 454: air outlet 455: Air supply channel 46: Bracket 5: Infrared heater 51: Heating body 52: Infrared heating plate 521: exhaust hole 522: accommodating slot 53: Air supply duct 54: Ventilation runner S: Work S1: Opening direction S2: normal direction

The first figure is a schematic diagram of the infrared heating device with hot air generating function of the present invention. The second figure is a perspective view of the appearance of the infrared heater of the present invention. Fig. 3 is a partial exploded schematic view of the infrared heater of the present invention. Figure 4 is a schematic cross-sectional view of the infrared heater of the present invention. Figure 5 is a schematic cross-sectional view of the thermal convection and thermal radiation of the infrared heater of the present invention. The sixth figure is a schematic diagram of the configuration of the infrared heating device with hot air generating function of the present invention. Fig. 7 is a partially exploded schematic diagram of another infrared heater of the present invention. Figure 8 is a schematic cross-sectional view of another infrared heater of the present invention.

4: Infrared heater

41: Cavity

411: accommodating space

412: Opening

42: Heating body

43: Infrared heating plate

431: exhaust hole

44: Air supply duct

453: air inlet

Claims (10)

An infrared heating device with a function of generating hot air for heating a work object, comprising: at least one wind generator for generating wind; at least one pipeline module connected to the wind generator for conveying wind; and A plurality of infrared heaters are connected to the pipeline module for receiving wind, wherein each infrared heater includes a heating body, an infrared heating plate and an air supply duct, and the heating body is used for heating the infrared heating plate, In order to make the infrared heating plate generate infrared radiation heat and radiate to the work object, the air supply duct is used to transport the wind to receive the heat of the heating body to generate hot air, the infrared heating plate is provided with a plurality of exhaust holes, these Exhaust holes are used to discharge the hot air to heat the work. The infrared heating device with hot air generating function according to claim 1, wherein each infrared heater further comprises a cavity, the cavity is provided with an accommodating space and an opening communicated with the accommodating space, and the heating body Located in the accommodating space of the cavity and corresponding to the opening, the infrared heating plate covers the opening of the cavity, the air supply duct is disposed on the cavity and communicated with the accommodating space, the exhaust air The holes are connected to the accommodating space and are used to discharge the hot air into the accommodating space. When the wind is transported from the air supply duct into the accommodating space of the cavity, it is heated by the heating body in the accommodating space. The heating effect is used to generate hot air, and the hot air is discharged to the accommodating space through the exhaust holes of the infrared heating plate to heat the work object. The infrared heating device with hot air generating function according to claim 2, wherein the air supply duct comprises an air supply pipe body, and an air inlet portion and an air outlet portion respectively disposed at both ends of the air supply pipe body, and the air inlet portion There is an air inlet, the air outlet has an air outlet, and the air supply pipe is provided with an air supply channel which is communicated with the air inlet and the air outlet. The infrared heating device with hot air generating function according to claim 3, wherein the air outlet is located in the accommodating space and extends toward the heating body, so that the air outlet is close to the heating body. The infrared heating device with hot air generating function according to claim 3, wherein the air outlet is located in the accommodating space, and the air outlet is arranged corresponding to the heating body. The infrared heating device with hot air generating function according to claim 3, wherein the heating body has a heating radiation surface, the heating radiation surface is disposed facing the exhaust holes of the infrared heating plate, and the opening direction of the air outlet is is perpendicular to the normal direction of the heating radiation surface. The infrared heating device with hot air generating function according to claim 3, wherein the heating body has a heating radiation surface, and the heating radiation surface is disposed facing the exhaust holes of the infrared heating plate, and the center of the air outlet and The heating radiation surfaces are aligned. The infrared heating device with hot air generating function according to claim 3, wherein the diameter of each exhaust hole is smaller than the diameter of the air outlet, and the diameter of the air inlet is larger than the diameter of the air outlet. The infrared heating device with hot air generating function according to claim 1, wherein the heating body and the air supply duct are arranged on the infrared heating plate, and the infrared heating plate is provided with a ventilation channel, and the ventilation channel is connected to the air supply The pipe and the exhaust holes, when the wind is transported from the air supply pipe into the ventilation channel, it is heated by the infrared heating plate heated by the heating body in the ventilation channel to generate hot air, and the hot air passes through the ventilation channel. The exhaust holes are discharged out of the ventilation channel to heat the work object. The infrared heating device with hot air generating function according to claim 9, wherein the infrared heating plate is provided with at least one accommodating groove, the heating system is inserted into the accommodating groove, and the ventilation channel is along the heating body The extension direction of the air outlet is arranged, and the opening direction of the exhaust hole is perpendicular to the extension direction of the ventilation channel.

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