A high-temperature dehumidification device for LED beads

Abstract

This invention provides a high-temperature dehumidification device for LED beads, relating to the field of baking dehumidification, comprising: a dehumidifying baking oven; an air inlet pipe fixedly connected to the right side of the dehumidifying baking oven; an exhaust pipe fixedly connected to the left side of the dehumidifying baking oven; a set of internal partitions fixedly installed inside the dehumidifying baking oven; a first dehumidification chamber and a second dehumidification chamber arranged inside the dehumidifying baking oven; a baking tray rotatably installed between the internal partitions; three LED bead placement boxes embedded in the top inner side of the baking tray; an activated carbon filter plate embedded in the top rear side of the internal partitions; a heater fixedly installed at the bottom of the second dehumidification chamber; two positioning blocks fixedly installed on the top of the dehumidifying baking oven; and a limiting plate slidably installed on one side of each of the two positioning blocks. This device eliminates the need for direct exhaust of hot air during high-temperature dehumidification of LED beads, effectively reducing heat energy waste.

Description

Technical Field

[0001] This invention relates to the field of baking and dehumidification technology, and in particular to a high-temperature dehumidification device for LED beads. Background Technology

[0002] LED beads are commonly used light source materials in lighting fixtures. If LED beads are exposed to air for a long time, they will absorb moisture. If they are not dehumidified, the moisture will expand due to the high temperature during reflow soldering, which will cause the LED beads to crack. Therefore, it is necessary to use an oven to dehumidify the LED beads.

[0003] Existing LED chip baking ovens all have a separate internal chamber. When baking LED chips at high temperatures, moisture from the chips enters the oven's internal cavity, increasing humidity. Therefore, after a period of use, the hot, humid air inside the oven needs to be expelled directly, which wastes energy. Furthermore, during LED chip baking, the chip tray or chips are usually placed directly in the oven for dehumidification. After dehumidification, the chip tray or chips need to be manually removed, which can easily cause burns due to their high temperature. Summary of the Invention

[0004] In view of this, the present invention provides a high-temperature dehumidification device for LED beads to solve the problem that current LED bead baking ovens are prone to wasting heat energy and causing burns during use.

[0005] This invention provides a high-temperature dehumidification device for LED beads, specifically comprising: a dehumidification baking oven; an air inlet pipe fixedly connected to the right side of the dehumidification baking oven; an exhaust pipe fixedly connected to the left side of the dehumidification baking oven; a set of internal partitions fixedly installed inside the dehumidification baking oven; a first dehumidification chamber and a second dehumidification chamber provided inside the dehumidification baking oven; a baking tray rotatably installed between the internal partitions; three LED bead placement boxes embedded in the top inner side of the baking tray; an activated carbon filter plate embedded in the top rear side of the internal partitions; a stepper motor fixedly installed at the bottom center of the internal partitions, and the top end of the stepper motor's spindle fixedly connected to the bottom center of the baking tray; a heater fixedly installed at the bottom of the second dehumidification chamber; two positioning blocks fixedly installed on the top of the dehumidification baking oven; and a limiting plate slidably installed on one side of each of the two positioning blocks.

[0006] Furthermore, the baking tray has three vertically penetrating fan-shaped grooves arranged in a ring on it, and the cross-sectional dimensions of the fan-shaped grooves are equal to the cross-sectional dimensions of the LED bead placement box. Each of these fan-shaped grooves also has a set of protruding plates on the inner bottom side.

[0007] Furthermore, the stepper motor rotates the baking tray by only 120° each time, and after the baking tray stops rotating, one of the LED bead placement boxes will be located in the middle of the fan-shaped notch on the front side of the dehumidifying baking oven.

[0008] Furthermore, both the first and second dehumidification chambers are fan-shaped cavities, and a fan-shaped notch is provided on the front side of the dehumidification oven. The angles of the first and second dehumidification chambers and the fan-shaped notch on the front side of the dehumidification oven are all 120°.

[0009] Furthermore, a rectangular hole running through the left and right sides is provided on the top rear side of the inner partition plate, and a rectangular groove corresponding to the size of the activated carbon filter plate is provided on the outside of this rectangular hole. In addition, a rectangular opening with a cross-sectional size equal to that of the main body of the activated carbon filter plate is also provided on the top rear side of the dehumidifying oven.

[0010] Furthermore, all the lamp bead placement boxes are fan-shaped box structures with openings at the top, and the bottom outer wall of each lamp bead placement box is provided with several elongated slots that run vertically through it.

[0011] Furthermore, all the limiting plates are Z-shaped plate structures. The guide rod and spring on one side of the limiting plate cooperate with the positioning block to push the limiting plate to slide toward the activated carbon filter plate. After the activated carbon filter plate is installed, the bent plate on one side of the limiting plate can be stuck on the front and rear sides of the rectangular plate at the top of the activated carbon filter plate.

[0012] Furthermore, the baking tray has a circular plate structure, the outer diameter of the baking tray is equal to the inner diameter of the dehumidifying baking oven, and the thickness of the baking tray is equal to the height of the opening in the middle of the inner partition.

[0013] Beneficial effects:

[0014] 1. Both the No. 1 and No. 2 dehumidification chambers in this invention can dehumidify the LED beads. When the air inside the No. 2 dehumidification chamber is relatively humid, external air can be introduced into the No. 2 dehumidification chamber through the air inlet pipe. At this time, the humid hot air above the No. 2 dehumidification chamber will enter the No. 1 dehumidification chamber through the rectangular hole on the rear side of the top of the inner partition for recycling. Moreover, during this process, the activated carbon filter plate can adsorb the moisture in this humid hot air. Therefore, this hot air can preheat the LED beads in the No. 1 dehumidification chamber to achieve a preliminary dehumidification effect. At the same time, the activated carbon filter plate is very convenient to disassemble and replace. When the device dehumidifies the LED beads at high temperature, the hot air does not need to be directly discharged to the outside, which can effectively reduce the waste of heat energy.

[0015] 2. The LED bead placement box in this invention is used to hold the LED beads, and the baking tray is used to support the LED bead placement box. After each rotation of the baking tray stops, two of the LED bead placement boxes can be placed in the first dehumidification chamber and the second dehumidification chamber respectively for dehumidification, while the other LED bead placement box can rotate into the fan-shaped notch on the front side of the dehumidification baking box. Therefore, the LED bead placement box can be cooled before the LED beads are poured out. After the LED beads are dehumidified, there is no need to manually remove them immediately to avoid burns. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the spindle-side structure of an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the right front axle side structure of the dehumidifying oven according to an embodiment of the present invention, after being cut along the Y-axis.

[0020] Figure 3 This is a schematic diagram of the main shaft side structure of the dehumidifying baking oven after being cut along the X-axis according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the top-side structure of the dehumidifying baking oven after horizontal sectional cutting, according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the main shaft side structure of the dehumidifying baking oven according to an embodiment of the present invention.

[0023] Figure 6 This is a partial axial side structural diagram of the activated carbon filter plate during disassembly according to an embodiment of the present invention.

[0024] Figure 7 This is a top-side structural diagram of the baking tray when it is cut and separated from the LED bead placement box according to an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the overhead side structure of an embodiment of the present invention when the baking tray is cut and separated from the LED bead placement box.

[0026] List of reference numerals

[0027] 1. Dehumidifying oven; 2. Air inlet pipe; 3. Exhaust pipe; 4. Baking tray; 5. LED bead placement box; 6. Activated carbon filter plate; 7. Inner partition; 8. Stepper motor; 9. Dehumidifying chamber 1; 10. Dehumidifying chamber 2; 11. Heater; 12. Positioning block; 13. Limiting plate. Detailed Implementation

[0028] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0029] Example: Please refer to Figures 1 to 8 As shown:

[0030] This invention provides a high-temperature dehumidification device for LED beads, including a dehumidification baking chamber 1. An air inlet pipe 2 is fixedly connected to the right side of the dehumidification baking chamber 1. The dehumidification baking chamber 1 provides a cavity for drying and dehumidifying the LED beads. When the air inside the second dehumidification chamber 10 is relatively humid, external air can be introduced into the second dehumidification chamber 10 through the air inlet pipe 2. At this time, the humid hot air above the inside of the second dehumidification chamber 10 will enter the first dehumidification chamber 9 through the rectangular hole at the rear top of the inner partition 7 for recycling. During this process, the activated carbon filter plate 6 can adsorb the moisture in this humid hot air. Therefore, this hot air can preheat the LED beads in the first dehumidification chamber 9, achieving a preliminary dehumidification effect. An exhaust pipe 3 is fixedly connected to the left side of the dehumidification baking chamber 1. When the second dehumidification chamber... When air from chamber 10 enters dehumidification chamber 9, the cool air below dehumidification chamber 9 is also discharged through exhaust pipe 3. Both inlet pipe 2 and exhaust pipe 3 are equipped with one-way valves, preventing air backflow. An internal partition 7 is fixedly installed inside dehumidification oven 1 to separate the internal cavities and support the baking tray 4. Dehumidification oven 1 contains a first dehumidification chamber 9 and a second dehumidification chamber 10. The first dehumidification chamber 9 can recycle the hot air discharged from the second dehumidification chamber 10, thus performing preliminary dehumidification of the LED beads. The second dehumidification chamber 10 uses its internal heater 11 to heat the air, thereby... The device is designed to thoroughly dehumidify the LED beads. A baking tray 4 is rotatably mounted between the inner partitions 7. The baking tray 4 supports the LED bead placement box 5. When using this device to dry the LED beads, first place the LED beads in the LED bead placement box 5, then place the LED bead placement box 5 in the fan-shaped groove on the baking tray 4. At this point, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise, allowing the LED bead placement box 5 and its internal LED beads to enter the first dehumidification chamber 9 for initial dehumidification. After a period of time, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise again, and then the LED bead placement box 5 and its internal LED beads will enter the second dehumidification chamber 10 for thorough dehumidification. After dehumidification, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise again. Rotating the baking tray 4 clockwise by 120° will rotate the LED bead placement box 5 into the fan-shaped notch on the front side of the dehumidifying oven 1. This allows the LED bead placement box 5 to cool down before the LED beads are poured out. After the LED beads are dehumidified, they do not need to be manually removed immediately to avoid burns. Moreover, rotating the baking tray 4 will also allow the three LED bead placement boxes 5 on its inner side to continuously dehumidify the LED beads. The baking tray 4 has a circular plate structure. The outer diameter of the baking tray 4 is equal to the inner diameter of the dehumidifying oven 1, and the thickness of the baking tray 4 is equal to the height of the opening in the middle of the inner partition 7. Therefore, after each rotation, the baking tray 4 can close the opening in the middle of the inner partition 7, thereby preventing the hot air inside the first dehumidifying chamber 9 and the second dehumidifying chamber 10 from escaping.The baking tray 4 has three vertically penetrating fan-shaped slots arranged in a ring, with the cross-sectional dimensions of the fan-shaped slots equal to those of the LED bead placement box 5. Each fan-shaped slot has a raised plate on its inner bottom side. When dehumidifying the LED beads at high temperature, the beads are first placed in the LED bead placement box 5, and then the LED bead placement box 5 is placed in the fan-shaped slots on the baking tray 4. The raised plates on the inner bottom side of the fan-shaped slots provide support for the bottom of the LED bead placement box 5. Three LED bead placement boxes 5 are embedded in the inner top of the baking tray 4. These boxes hold the LED beads that need dehumidification. During dehumidification, hot air can pass through the long, narrow opening on the outer bottom wall of the LED bead placement box 5. The groove allows for vertical flow, resulting in more efficient and uniform dehumidification of the LED beads. An activated carbon filter plate 6 is embedded in the top rear side of the inner partition 7. When the air inside the second dehumidification chamber 10 is relatively humid, external air can be introduced into the second dehumidification chamber 10 through the air inlet pipe 2. At this time, the humid, hot air above the second dehumidification chamber 10 will enter the first dehumidification chamber 9 through the rectangular hole on the top rear side of the inner partition 7 for recycling. During this process, the activated carbon filter plate 6 can adsorb the moisture in this humid, hot air, thus preheating the LED beads in the first dehumidification chamber 9 and achieving a preliminary dehumidification effect. A stepper is fixedly installed at the bottom center of the inner partition 7. The motor 8, and the top of the stepper motor 8's main shaft are fixedly connected to the middle of the bottom of the baking tray 4. The stepper motor 8 is used to drive the baking tray 4 to rotate, thereby adjusting the position of the LED bead placement box 5. A heater 11 is fixedly installed at the bottom of the second dehumidification chamber 10. During use, the heater 11 can be used to heat the air inside the second dehumidification chamber 10, thereby thoroughly dehumidifying the LED beads. Two positioning blocks 12 are fixedly installed on the top of the dehumidification baking box 1. The positioning blocks 12 are used to support and limit the limiting plate 13, allowing the limiting plate 13 to slide back and forth to lock or loosen the rectangular plate on the top of the activated carbon filter plate 6. A limiting plate is slidably installed on one side of each of the two positioning blocks 12. When installing the activated carbon filter plate 6, first push both limiting plates 13 toward the positioning block 12. Then, insert the activated carbon filter plate 6 into the rectangular groove at the rear top of the inner partition 7 through the rectangular opening at the rear top of the dehumidifying oven 1. At this point, releasing the limiting plates 13 will allow them to slide towards the front and rear sides of the rectangular plate at the top of the activated carbon filter plate 6 by a spring, thus fixing the activated carbon filter plate 6. Later, when the activated carbon filter plate 6 needs to be disassembled, simply push both limiting plates 13 toward the positioning block 12 to unlock the rectangular plate at the top of the activated carbon filter plate 6, and then pull the activated carbon filter plate 6 upwards. Replacing the activated carbon filter plate 6 is also very convenient.

[0031] Each time the stepper motor 8 rotates the baking tray 4, it only rotates 120°. After the baking tray 4 stops rotating, one of the LED bead placement boxes 5 will be located in the middle of the fan-shaped notch on the front side of the dehumidifying oven 1. Therefore, after each rotation of the stepper motor 8, two of the LED bead placement boxes 5 can be placed in the first dehumidifying chamber 9 and the second dehumidifying chamber 10 for dehumidification, while the other LED bead placement box 5 can be used to pick up and put in the LED beads in the fan-shaped notch on the front side of the dehumidifying oven 1. Moreover, the LED beads can be naturally cooled in this fan-shaped notch after dehumidification before being taken out, effectively avoiding burns.

[0032] Both dehumidification chamber 9 (number one) and dehumidification chamber 10 (number two) are fan-shaped cavities. A fan-shaped notch is located on the front side of the dehumidification oven 1. The angles of dehumidification chambers 9 and 10, as well as the fan-shaped notch on the front side of the dehumidification oven 1, are all 120°. When using this device to dry LED beads, the LED beads are first placed in the LED bead placement box 5, and then the LED bead placement box 5 is placed in the fan-shaped groove on the baking tray 4. At this point, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise, allowing the LED bead placement box 5 and the LED beads inside to enter dehumidification chamber 9 for initial dehumidification. After a period of time... The stepper motor 8 drives the baking tray 4 to rotate 120° clockwise. Then, the LED bead placement box 5 and the LED beads inside it will enter the second dehumidification chamber 10 for thorough dehumidification. After dehumidification, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise so that the LED bead placement box 5 can rotate into the fan-shaped notch on the front side of the dehumidification baking oven 1. Therefore, the LED bead placement box 5 can be cooled before the LED beads are poured out. After the LED beads are dehumidified, there is no need to manually remove them immediately to avoid burns. Moreover, the rotation of the baking tray 4 can also cause the three LED bead placement boxes 5 inside to continuously dehumidify the LED beads.

[0033] The inner partition 7 has a rectangular hole running through it from left to right on its top rear side. A rectangular groove corresponding to the size of the activated carbon filter plate 6 is also provided outside this rectangular hole. Furthermore, the dehumidifying oven 1 has a rectangular opening on its top rear side with a cross-sectional size equal to that of the main body of the activated carbon filter plate 6. When the air inside the second dehumidifying chamber 10 is relatively humid, external air can be introduced into the second dehumidifying chamber 10 through the air inlet pipe 2. At this time, the humid hot air above the second dehumidifying chamber 10 will enter the first dehumidifying chamber 9 through the rectangular hole on the top rear side of the inner partition 7 for recycling. During this process, the activated carbon filter plate 6 can absorb the moisture in this humid hot air. Therefore, this hot air can preheat the LED beads in the first dehumidifying chamber 9, achieving a preliminary dehumidification effect. The hot air does not need to be directly discharged, reducing heat energy waste. The rectangular opening on the top rear side of the dehumidifying oven 1 facilitates the installation and removal of the activated carbon filter plate 6.

[0034] The LED bead placement boxes 5 are all fan-shaped box structures with openings at the top. The bottom outer wall of each LED bead placement box 5 is provided with several long strip-shaped openings running vertically through it. The LED bead placement boxes 5 are used to hold the LED beads that need to be dehumidified. During dehumidification, hot air can flow up and down through the long strip-shaped openings on the bottom outer wall of the LED bead placement boxes 5, thus enabling more efficient and uniform dehumidification of the LED beads.

[0035] The limiting plates 13 are all Z-shaped plate structures. The guide rod and spring on one side of the limiting plate 13 cooperate with the positioning block 12 to push the limiting plate 13 towards the activated carbon filter plate 6. After the activated carbon filter plate 6 is installed, the bent plate on one side of the limiting plate 13 can be locked in front and back of the rectangular plate at the top of the activated carbon filter plate 6. When installing the activated carbon filter plate 6, first push both limiting plates 13 towards the positioning block 12. Then, the activated carbon filter plate 6 can be inserted into the rectangular groove at the top and back of the inner partition 7 through the rectangular opening at the top and back of the dehumidifying oven 1. At this time, when the limiting plates 13 are released, they will be pushed by the spring to slide to the front and back of the rectangular plate at the top of the activated carbon filter plate 6 and limit it, thereby fixing the activated carbon filter plate 6. When the activated carbon filter plate 6 needs to be disassembled later, simply push both limiting plates 13 towards the positioning block 12 to unlock the rectangular plate at the top of the activated carbon filter plate 6, and then pull the activated carbon filter plate 6 upward. It is also very convenient to replace the activated carbon filter plate 6.

[0036] The specific usage and function of this embodiment: In this invention, before use, the dehumidifying oven 1 is placed in a suitable position. During use, the heater 11 heats the air inside the second dehumidifying chamber 10, thereby thoroughly dehumidifying the LED beads. When the air inside the second dehumidifying chamber 10 is relatively humid, external air can be introduced into the second dehumidifying chamber 10 through the air inlet pipe 2. At this time, the humid hot air above the inside of the second dehumidifying chamber 10 will enter the first dehumidifying chamber 9 through the rectangular hole on the rear side of the top of the inner partition 7 for recycling. Moreover, during this process, the activated carbon filter plate 6 can adsorb the moisture in this humid hot air, so this hot air can be recycled. The preheating of the LED beads in dehumidification chamber 9 provides initial dehumidification. Hot air does not need to be directly exhausted, reducing heat waste. Furthermore, when air from dehumidification chamber 10 enters dehumidification chamber 9, cool air from the lower part of chamber 9 is also exhausted through exhaust pipe 3. When using this device to dry the LED beads, first place them in the LED bead placement box 5, then place the box 5 in the fan-shaped groove on the baking tray 4. The stepper motor 8 then rotates the baking tray 4 clockwise by 120°, allowing the LED bead placement box 5 and the LED beads inside to enter dehumidification chamber 9 for initial dehumidification. After a period of time... Then, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise. The LED bead placement box 5 and the LED beads inside then enter the second dehumidification chamber 10 for thorough dehumidification. After dehumidification, the stepper motor 8 drives the baking tray 4 to rotate 120° clockwise again, causing the LED bead placement box 5 to rotate into the fan-shaped notch at the front of the dehumidification oven 1. This allows the LED bead placement box 5 to cool down before the LED beads are poured out. After dehumidification, the LED beads do not need to be manually removed immediately to avoid burns. Furthermore, the rotation of the baking tray 4 continuously dehumidifies the LED beads in the three LED bead placement boxes 5 inside. An activated carbon filter is also installed. When inserting plate 6, first push both limiting plates 13 toward the positioning block 12. Then, insert the activated carbon filter plate 6 into the rectangular groove at the rear top of the inner partition 7 through the rectangular opening at the rear top of the dehumidifying oven 1. At this time, release the limiting plates 13, and they will be pushed by the spring to slide to the front and rear sides of the rectangular plate at the top of the activated carbon filter plate 6 and limit it, thereby fixing the activated carbon filter plate 6. When the activated carbon filter plate 6 needs to be disassembled later, simply push both limiting plates 13 toward the positioning block 12 to unlock the rectangular plate at the top of the activated carbon filter plate 6, and then pull the activated carbon filter plate 6 upward. It is also very convenient to replace the activated carbon filter plate 6.

Claims

1. A high-temperature dehumidification device for LED beads, characterized in that, include: A dehumidifying oven (1); an air inlet pipe (2) is fixedly connected to the right side of the dehumidifying oven (1); an exhaust pipe (3) is fixedly connected to the left side of the dehumidifying oven (1); a set of internal partitions (7) are fixedly installed inside the dehumidifying oven (1); a first dehumidifying chamber (9) and a second dehumidifying chamber (10) are provided inside the dehumidifying oven (1); a baking tray (4) is rotatably installed between the internal partitions (7); three LED bead placement boxes are embedded in the inner top of the baking tray (4). 5) An activated carbon filter plate (6) is embedded in the rear top of the inner partition (7); a stepper motor (8) is fixedly installed at the middle bottom position of the inner partition (7), and the top end of the main shaft of the stepper motor (8) is fixedly connected to the middle bottom position of the baking tray (4); a heater (11) is fixedly installed at the bottom of the second dehumidification chamber (10); two positioning blocks (12) are fixedly installed on the top of the dehumidification baking oven (1); a limiting plate (13) is slidably installed on one side of each of the two positioning blocks (12); The first dehumidification chamber (9) and the second dehumidification chamber (10) are both fan-shaped cavities. A fan-shaped notch is provided on the front side of the dehumidification oven (1), and the angles of the first dehumidification chamber (9), the second dehumidification chamber (10), and the fan-shaped notch on the front side of the dehumidification oven (1) are all 120°. The lamp bead placement boxes (5) are all fan-shaped box structures with openings at the top, and the bottom outer wall of each lamp bead placement box (5) is provided with several long strip-shaped openings that run vertically through it. The baking tray (4) has three vertically penetrating fan-shaped grooves arranged in a ring on it, and the cross-sectional dimensions of the fan-shaped grooves are equal to the cross-sectional dimensions of the lamp bead placement box (5). A set of protruding plates is also provided on the inner bottom of each of these fan-shaped grooves. Each time the stepper motor (8) drives the baking tray (4) to rotate, it will only rotate 120°. After the baking tray (4) stops rotating, one of the lamp bead placement boxes (5) will be located in the middle of the fan-shaped notch on the front side of the dehumidifying baking oven (1). The limiting plates (13) are all Z-shaped plate structures. The guide rod and spring on one side of the limiting plate (13) cooperate with the positioning block (12) to push the limiting plate (13) to slide toward the activated carbon filter plate (6). After the activated carbon filter plate (6) is installed, the bent plate on one side of the limiting plate (13) can be stuck on the front and back sides of the rectangular plate at the top of the activated carbon filter plate (6).

2. The high-temperature dehumidification device for LED beads as described in claim 1, characterized in that: The baking tray (4) is a circular plate structure. The outer diameter of the baking tray (4) is equal to the inner diameter of the dehumidifying baking oven (1), and the thickness of the baking tray (4) is equal to the height of the opening in the middle of the inner partition (7).

3. The high-temperature dehumidification device for LED beads as described in claim 1, characterized in that: The inner partition (7) has a rectangular hole that runs through the left and right sides on the top rear side. A rectangular groove corresponding to the size of the activated carbon filter plate (6) is also provided on the outside of this rectangular hole. The dehumidifying oven (1) also has a rectangular opening on the top rear side with a cross-sectional size equal to that of the main body of the activated carbon filter plate (6).

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