Humidifier for airtight test chamber

Abstract

The application discloses a humidifier for a closed experiment box, and relates to the technical field of humidifying experiment equipment, which comprises an experiment box and a humidifier arranged in the internal chamber of the experiment box. The humidifier comprises a box body, symmetrical slide rails are arranged in the chamber, slide blocks are slidably arranged on the slide rails, connecting rods are arranged on the slide blocks, the connecting rods on the two sides are connected through connecting plates, slide rods are symmetrically arranged on the side of the connecting plates close to the box body, slide holes are formed in the side of the box body close to the connecting plates, the slide rods penetrate through the slide holes and are connected with water dripping pipes, and humidity sensors are arranged in the laboratory of the experiment box. When the humidity sensors detect that the humidity in the experiment box is lower than a set value, the water dripping pipes can be driven to reciprocatingly move through the starting of the slide rails, which is beneficial to the moving and uniform dripping of the water dripping pipes on the heating plate during the reciprocating movement, and can improve the utilization efficiency of the heating plate and the steam generation amount.

Description

Technical Field

[0001] This invention relates to the field of humidification technology for experimental equipment, specifically a humidifier for a sealed experimental chamber. Background Technology

[0002] The core function of the humidifier inside the sealed test chamber is to inject water vapor into the chamber to precisely maintain the set relative humidity environment, simulating hot and humid climate conditions. This allows for testing the adaptability and reliability of products under specific humidity conditions. It can create a hot and humid test environment by generating steam to raise the relative humidity inside the chamber from a low state to a set value, meeting constant or alternating hot and humid test standards. It can also perform comprehensive stress testing by working in conjunction with multiple systems to provide a high-humidity environment under heating or constant temperature conditions, accelerating the exposure of potential defects such as moisture absorption and expansion of materials, metal corrosion, and decreased insulation performance.

[0003] Existing humidifiers for test chambers generate steam by dripping water onto the heating plate. However, because the water droplets from the drip tubes are positioned in a fixed location on the heating plate, the utilization rate of the heating plate is low, and the steam delivery efficiency cannot be effectively improved based on changes in the amount of steam. Summary of the Invention

[0004] The purpose of this invention is to provide a humidifier for a sealed experimental chamber to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a humidifier for a sealed experimental chamber, comprising an experimental chamber and a humidifier disposed in the internal chamber of the experimental chamber. The humidifier includes a box body, a heating plate installed inside the box body, and a drip pipe installed on the box body via a dripping device. A water supply unit is disposed in the chamber, and the water supply unit is connected to the drip pipe. An air delivery component is disposed on the box body. The drip-feed component includes a slide rail, a slider, a connecting rod, a connecting plate, a slide bar, and a slide hole; The chamber is symmetrically equipped with slide rails, each slide rail has a slider that is slidably mounted on it, and each slider has a connecting rod mounted on it. The connecting rods on both sides are connected by a connecting plate. The connecting plate has a sliding rod symmetrically mounted on the side of the box body near the box body. The box body has a sliding hole on the side of the connecting plate near the connecting plate. The sliding rod passes through the sliding hole and is connected to a drip pipe. A humidity sensor is installed in the laboratory of the test chamber, and the humidity sensor is electrically connected to the slide rails.

[0006] When the humidity sensor detects that the humidity inside the experimental chamber is lower than the set value, water can be supplied to the drip pipe through the water supply unit. This allows the heating plate to instantly evaporate the dripping water droplets into steam. At the same time, by activating the slide rail, the slider can drive the connecting plate to move back and forth via the connecting rod. This allows the connecting plate to move the drip pipe synchronously back and forth via the slide rod during the movement. This helps the drip pipe to evenly distribute the water onto the heating plate during the reciprocating movement, which can improve the utilization efficiency of the heating plate and increase the amount of steam generated.

[0007] As a preferred technical solution, the gas delivery assembly includes a gas pump, a gas delivery pipe, a gas inlet, a gas hood, a gas outlet, and a gas delivery pipe; An air pump is installed in the chamber, and an air supply pipe is installed on the output end of the air pump. Multiple air inlets are evenly distributed on the upper part of the box, and air hoods are installed at the ends of the multiple air inlets. The air hoods are connected to the air supply pipes, and air volume compensation components are provided on the air inlets. Multiple air outlets are opened on the top of the box, and the multiple air outlets are connected to the laboratory of the test chamber through air supply pipes. Moisture compensation components are provided on the air outlets. The air pump is electrically connected to a humidity sensor. When the humidity detected by the humidity sensor is lower than the set humidity, the operating efficiency of the air pump can be increased accordingly based on the difference. The air pump can supply air to the box through the air supply pipes and air inlets. The airflow entering the box can carry steam through the air outlets and air supply pipes into the laboratory of the test chamber. At the same time, the efficiency of steam delivery into the laboratory can be improved by changing the airflow velocity.

[0008] As a preferred technical solution, the moisture compensation component includes a perforation, a rotating shaft, a rotating disk, an air hole, transmission teeth, an electric telescopic rod, and a toothed plate; The top of the box has multiple perforations, and a rotating shaft is rotatably installed within each perforation. A rotating disk is installed at the bottom of the rotating shaft, and a transmission gear is installed at the top of the rotating shaft. Electric telescopic rods are symmetrically installed on both sides of the top of the box, and the two electric telescopic rods are connected by toothed plates. The toothed plates mesh with multiple transmission gears. Multiple air holes are arranged in a circular pattern on the rotating disk. The electric telescopic rods are electrically connected to a humidity sensor, and can be controlled to move a corresponding distance according to the humidity difference. With the cooperation of the two electric telescopic rods, the toothed plates are driven to move synchronously, so that the toothed plates can drive the transmission gears to rotate during the movement. The transmission gears can rotate in integer multiples of 90° according to the humidity difference. During the rotation of the transmission gears, the rotating shaft can drive the rotating disk to rotate synchronously, so that the rotating disk drives the air holes of the corresponding diameter to align with the air outlet. The docking area between the air holes and the air outlet can be controlled according to the humidity difference, thereby controlling the amount of steam entering per unit time.

[0009] As a preferred technical solution, the centers of the multiple air holes are all located on the same circumference, and the radius of the circumference formed is the same as the distance from the center of the air outlet to the center line of the rotating shaft. The diameters of the multiple air holes gradually increase, and the air hole with the largest diameter is consistent with the air outlet.

[0010] As a preferred technical solution, the air volume compensation component includes a transmission rod, a pushing wedge, a through hole, a linkage rod, a top plate, a connecting spring, a driven wedge, a baffle, and an air outlet; A transmission rod is mounted on the toothed plate, and a pushing wedge is mounted on the transmission rod. Symmetrical through holes are provided on both sides of the top of the box body, and a linkage rod is slidably installed within each through hole. The top of the linkage rod is connected to a top plate, which is connected to the top of the box body via a connecting spring. A driven wedge is mounted on the top plate, and the driven wedge and the pushing wedge are in a beveled fit. A baffle is mounted at the bottom of the linkage rod, and multiple air vents are provided on the baffle. Each air vent corresponds to a specific air inlet. When the electric telescopic rod is controlled according to the humidity difference... When the toothed plate moves a certain distance, it can drive the push wedge to move synchronously by the transmission rod. By engaging the inclined surfaces of the push wedge and the driven wedge, the driven wedge can move longitudinally a certain distance according to the horizontal movement distance of the push wedge. During the movement, the driven wedge can drive the baffle to move upward a certain distance through the top plate and the linkage rod. This allows the fitting area between the air inlet and the air outlet on the baffle to be adjusted, thereby controlling the airflow based on the humidity difference and improving the steam conveying efficiency.

[0011] As a preferred technical solution, the air vent is a combination of an isosceles trapezoid and a rectangle, and the rectangle is the same size as the air inlet. In the initial state, the fitting area between the air vent and the air inlet is minimized.

[0012] As a preferred technical solution, the water supply unit includes a pure water tank, a water pump, a suction pipe, and a delivery pipe; The chamber is equipped with a pure water tank and a water pump. The input end of the pure water tank and the water pump are connected through a suction pipe, and the output end of the water pump is connected to a drip pipe through a delivery pipe. The water pump is electrically connected to a humidity sensor. When the humidity sensor detects that the humidity in the laboratory is lower than the set humidity, the humidity sensor can control the operation of the water pump and control the operating efficiency of the water pump. It can also draw pure water from the pure water tank into the drip pipe through the suction pipe and the delivery pipe, and can also conveniently control the dripping frequency of the drip pipe according to the humidity difference.

[0013] As a preferred technical solution, a detachable panel is installed on the chamber, which facilitates the replenishment of pure water into the pure water tank and enables long-term use.

[0014] Compared with the prior art, the beneficial effects of the present invention are: When the humidity sensor detects that the humidity inside the experimental chamber is lower than the set value, the sliding rail can be activated to drive the drip pipe to move back and forth synchronously. This allows the drip pipe to evenly distribute the water onto the heating plate during the reciprocating motion, which can improve the utilization efficiency of the heating plate and increase the amount of steam generated.

[0015] In this application, when the humidity detected by the humidity sensor is lower than the set humidity, the operating efficiency of the air pump can be increased accordingly based on the difference, so as to improve the delivery efficiency of steam into the laboratory by changing the airflow velocity.

[0016] In this application, the transmission gear can be controlled to rotate in multiples of 90° based on the humidity difference, thereby controlling the docking area between the air hole and the air outlet, and realizing the control of the amount of steam entering per unit time.

[0017] In this application, the fitting area between the air vent and the air inlet on the regulating baffle can be controlled according to the humidity difference, and the airflow can be controlled according to the humidity difference, thereby achieving a corresponding improvement in steam conveying efficiency.

[0018] In this application, when the humidity sensor detects that the humidity in the laboratory is lower than the set humidity, the humidity sensor can control the operating efficiency of the water pump, and conveniently control the dripping frequency of the dripping pipe according to the humidity difference. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the test chamber of the present invention; Figure 2 This is a schematic diagram of the interior of the test chamber of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the test chamber of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the test chamber of the present invention; Figure 5 for Figure 4 Enlarged structural diagram at point A in the diagram; Figure 6 yes Figure 4 Enlarged structural diagram at point B in the diagram; Figure 7 This is a schematic diagram of the moisture compensation component. Figure 8 This is a schematic diagram of the gas volume compensation component.

[0020] In the diagram: 1. Experimental chamber; 2. Humidifier; 21. Box body; 22. Heating plate; 23. Drip pipe; 24. Drip cloth component; 241. Slide rail; 242. Slider; 243. Connecting rod; 244. Connecting plate; 245. Slide rod; 246. Sliding hole; 3. Chamber; 4. Water supply unit; 401. Pure water tank; 402. Water pump; 403. Suction pipe; 404. Water delivery pipe; 405. Box panel; 5. Air supply assembly; 51. Air pump; 52. Air delivery pipe; 53. Air inlet. 54. Air hood; 55. Air outlet; 56. Air supply pipe; 57. Moisture compensation component; 571. Perforation; 572. Rotating shaft; 573. Rotary disc; 574. Air hole; 575. Transmission gear; 576. Electric telescopic rod; 577. Gear plate; 58. Air volume compensation component; 581. Transmission rod; 582. Push wedge; 583. Through hole; 584. Linkage rod; 585. Top plate; 586. Connecting spring; 587. Driven wedge; 588. Baffle; 589. Air outlet. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Figures 1-8 As shown, the present invention provides a technical solution for a humidifier for a sealed experimental chamber, including an experimental chamber 1 and a humidifier 2 installed in the internal chamber 3 of the experimental chamber 1. The humidifier 2 includes a box body 21, a heating plate 22 installed inside the box body 21, the heating temperature of the heating plate 22 being 100℃-120℃, and a drip pipe 23 installed on the box body 21 via a dripping component 24. A water supply unit 4 is provided in the chamber 3, and the water supply unit 4 is connected to the drip pipe 23. An air supply component 5 is provided on the box body 21. The dripping component 24 includes a slide rail 241, a slider 242, a connecting rod 243, a connecting plate 244, a slide bar 245, and a sliding hole 246; Slide rails 241 are symmetrically installed inside chamber 3. Slider 242 is slidably installed on each slide rail 241. Connecting rod 243 is installed on each slider 242. The connecting rods 243 on both sides are connected by connecting plate 244. Slide rod 245 is symmetrically installed on the side of connecting plate 244 near box 21. Slide hole 246 is opened on the side of box 21 near connecting plate 244. Slide rod 245 passes through slide hole 246 and is connected to drip pipe 23. Humidity sensor is installed in the laboratory of test chamber 1. Humidity sensor is electrically connected to slide rail 241.

[0023] When the humidity sensor detects that the humidity inside the experimental chamber 1 is lower than the set value, water can be supplied to the drip pipe 23 through the water supply unit 4, so that the heating plate 22 can instantly evaporate the dripping water droplets to form steam. At the same time, by activating the slide rail 241, the slider 242 can drive the connecting plate 244 to move back and forth through the connecting rod 243. This allows the connecting plate 244 to drive the drip pipe 23 to move back and forth synchronously through the slide rod 245 during the movement. This is beneficial for the drip pipe 23 to move and evenly distribute the drips on the heating plate 22 during the reciprocating movement, which can improve the utilization efficiency of the heating plate 22 and increase the amount of steam generated.

[0024] The gas delivery assembly 5 includes a gas pump 51, a gas delivery pipe 52, a gas inlet 53, a gas hood 54, a gas outlet 55, and a gas delivery pipe 56; An air pump 51 is installed inside chamber 3. An air supply pipe 52 is installed on the output end of the air pump 51. Multiple air inlets 53 are evenly distributed on the upper part of the box body 21. Each end of the multiple air inlets 53 is equipped with an air cover 54, which is connected to the air supply pipe 52. An air volume compensation component 58 is provided on the air inlet 53. Multiple air outlets 55 are provided on the top of the box body 21. The multiple air outlets 55 are connected to the laboratory of the test chamber 1 through an air supply pipe 56, and a moisture compensation component 57 is provided on the air outlet 55. The air pump 51 is electrically connected to the humidity sensor. When the humidity detected by the humidity sensor is lower than the set humidity, the operating efficiency of the air pump 51 can be increased accordingly based on the difference. The air pump 51 can supply air to the box 21 through the air supply pipe 52 and the air inlet 53. The airflow entering the box 21 can carry steam through the air outlet 55 and the air supply pipe 56 into the laboratory of the experimental chamber 1. At the same time, the efficiency of steam delivery into the laboratory can be improved by changing the airflow velocity.

[0025] The moisture compensation component 57 includes a perforation 571, a rotating shaft 572, a rotating disc 573, an air hole 574, a transmission gear 575, an electric telescopic rod 576, and a toothed plate 577. The top of the box 21 has multiple perforations 571, and a rotating shaft 572 is rotatably installed in each perforation 571. A rotating disk 573 is installed at the bottom of the rotating shaft 572, and a transmission gear 575 is installed at the top of the rotating shaft 572. Electric telescopic rods 576 are symmetrically installed on both sides of the top of the box 21. The two electric telescopic rods 576 are connected by a toothed plate 577, which meshes with the multiple transmission gears 575. Multiple air holes 574 are arranged in a circular pattern on the rotating disk 573. The electric telescopic rods 576 are electrically connected to a humidity sensor, and the electric telescopic rods 576 can be controlled to move according to the humidity difference. As the distance changes, the toothed plate 577 moves synchronously with the cooperation of two electric telescopic rods 576. During the movement, the toothed plate 577 drives the transmission gear 575 to rotate. The transmission gear 575 can rotate in multiples of 90° according to the humidity difference. During the rotation, the transmission gear 575 can drive the rotating disk 573 to rotate synchronously through the rotating shaft 572. This causes the rotating disk 573 to align the corresponding diameter air hole 574 with the air outlet 55. The docking area between the air hole 574 and the air outlet 55 can be controlled according to the humidity difference, thereby controlling the amount of steam entering per unit time.

[0026] The centers of multiple vents 574 are all on the same circumference, and the radius of the circumference formed is the same as the distance from the center of the air outlet 55 to the center line of the rotating shaft 572. The diameters of the multiple vents 574 gradually increase, and the vent 574 with the largest diameter is consistent with the air outlet 55.

[0027] The air volume compensation component 58 includes a transmission rod 581, a push wedge 582, a through hole 583, a linkage rod 584, a top plate 585, a connecting spring 586, a driven wedge 587, a baffle 588, and an air outlet 589. A transmission rod 581 is mounted on the toothed plate 577, and a pushing wedge 582 is mounted on the transmission rod 581. Symmetrical through holes 583 are opened on both sides of the top of the box 21. A linkage rod 584 is slidably installed in the through holes 583. The top of the linkage rod 584 is connected to the top plate 585, and the top plate 585 is connected to the top of the box 21 by a connecting spring 586. A driven wedge 587 is mounted on the top plate 582, and the driven wedge 587 and the pushing wedge 582 are in a beveled fit. A baffle 588 is installed at the bottom of the linkage rod 584, and multiple air vents 589 are opened on the baffle 588. The multiple air vents 589 correspond one-to-one with the positions of multiple air inlets 53. When the electric telescopic rod 576 controls the humidity difference... When the toothed plate 577 moves a certain distance, the toothed plate 577 can drive the push wedge 582 to move synchronously by the transmission rod 581 during the movement. By engaging the inclined surfaces of the push wedge 582 and the driven wedge 587, the driven wedge 587 can move longitudinally a certain distance according to the horizontal movement distance of the push wedge 582. During the movement, the driven wedge 587 can drive the baffle 588 to move a certain distance through the top plate 585 and the linkage rod 584. This allows the mating area between the air vent 589 and the air inlet 53 on the baffle 588 to be adjusted, thereby controlling the airflow based on the humidity difference and improving the steam conveying efficiency.

[0028] The air vent 589 is a combination of an isosceles trapezoid and a rectangle, and the rectangle is the same size as the air inlet 53. In the initial state, the fitting area between the air vent 589 and the air inlet 53 is the smallest.

[0029] Water supply unit 4 includes a pure water tank 401, a water pump 402, a suction pipe 403, and a delivery pipe 404; The chamber 3 is equipped with a pure water tank 401 and a water pump 402. The input end of the pure water tank 401 and the water pump 402 are connected through a suction pipe 403. The output end of the water pump 402 is connected to the drip pipe 23 through a water delivery pipe 404. The water pump 402 is electrically connected to a humidity sensor. When the humidity sensor detects that the humidity in the laboratory is lower than the set humidity, the humidity sensor can control the operation of the water pump 402 and control the operating efficiency of the water pump 402. It can also bring pure water from the pure water tank 401 into the drip pipe 23 through the suction pipe 403 and the water delivery pipe 404. It can also conveniently control the dripping frequency of the drip pipe 23 according to the humidity difference.

[0030] A detachable panel 405 is installed on the chamber 3, which facilitates the replenishment of pure water into the pure water tank 401, making it suitable for long-term use.

[0031] Working principle of the invention: When the humidity sensor detects that the humidity inside the experimental chamber 1 is lower than the set value, water can be supplied to the drip pipe 23 through the water supply unit 4, so that the heating plate 22 can instantly evaporate the dripping water droplets to form steam. At the same time, by activating the slide rail 241, the slider 242 can drive the connecting plate 244 to move back and forth through the connecting rod 243. This allows the connecting plate 244 to drive the drip pipe 23 to move back and forth synchronously through the slide rod 245 during the movement. This is beneficial for the drip pipe 23 to move and evenly distribute the drips on the heating plate 22 during the reciprocating movement, which can improve the utilization efficiency of the heating plate 22 and increase the amount of steam generated.

[0032] When the humidity detected by the humidity sensor is lower than the set humidity, the operating efficiency of the air pump 51 can be increased accordingly based on the difference. With the cooperation of the two electric telescopic rods 576, the toothed plate 577 can be moved a corresponding distance. During the movement, the toothed plate 577 can push the wedge block 582 to cooperate with the inclined surface of the driven wedge block 587, so that the driven wedge block 587 can drive the baffle 588 to move upward a corresponding distance through the top plate 585 and the linkage rod 584. This can adjust the mating area between the air vent 589 and the air inlet 53 on the baffle 588, thereby controlling the airflow volume according to the humidity difference. At the same time, when the toothed plate 577 moves, it can drive the transmission gear 575 to rotate, so that the rotary disk 573 can drive the air hole 574 of the corresponding diameter to align with the air outlet 55, and control the mating area between the air hole 574 and the air outlet 55 according to the humidity difference.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A humidifier for a sealed experimental chamber, comprising an experimental chamber (1) and a humidifier (2) disposed in the internal chamber (3) of the experimental chamber (1), characterized in that: The humidifier (2) includes a box body (21), a heating plate (22) is installed inside the box body (21), and a drip pipe (23) is installed on the box body (21) through a dripping part (24). A water supply unit (4) is provided in the chamber (3), and the water supply unit (4) is connected to the drip pipe (23). An air delivery assembly (5) is provided on the box body (21). The dripping component (24) includes a slide rail (241), a slider (242), a connecting rod (243), a connecting plate (244), a slide bar (245), and a sliding hole (246). The chamber (3) is symmetrically equipped with slide rails (241), and sliders (242) are slidably installed on each slide rail (241). Connecting rods (243) are installed on each slider (242). The connecting rods (243) on both sides are connected by connecting plates (244). Slide rods (245) are symmetrically installed on the side of the connecting plate (244) near the box body (21). A sliding hole (246) is opened on the side of the box body (21) near the connecting plate (244). The slide rod (245) passes through the sliding hole (246) and is connected to the drip pipe (23). A humidity sensor is installed in the laboratory of the test chamber (1). The humidity sensor is electrically connected to the slide rails (241).

2. The humidifier for a sealed experimental chamber according to claim 1, characterized in that: The gas delivery assembly (5) includes a gas pump (51), a gas delivery pipe (52), an air inlet (53), a gas cover (54), an air outlet (55), and a gas delivery pipe (56). An air pump (51) is installed in the chamber (3). An air supply pipe (52) is installed on the output end of the air pump (51). Multiple air inlets (53) are evenly opened on the upper part of the box (21). An air cover (54) is installed at the end of each of the multiple air inlets (53). The air cover (54) is connected to the air supply pipe (52). An air volume compensation component (58) is provided on the air inlet (53). Multiple air outlets (55) are opened on the top of the box (21). The multiple air outlets (55) are connected to the laboratory of the test chamber (1) through an air supply pipe (56). A humidity compensation component (57) is provided on the air outlet (55). The air pump (51) is electrically connected to the humidity sensor.

3. A humidifier for a sealed experimental chamber according to claim 2, characterized in that: The moisture compensation component (57) includes a perforation (571), a rotating shaft (572), a rotating disc (573), an air hole (574), a transmission gear (575), an electric telescopic rod (576), and a toothed plate (577). The top of the box (21) has multiple perforations (571), and a rotating shaft (572) is rotatably installed in the multiple perforations (571). A rotating disk (573) is installed at the bottom of the rotating shaft (572), and a transmission gear (575) is installed at the top of the rotating shaft (572). Electric telescopic rods (576) are symmetrically installed on both sides of the top of the box (21). The electric telescopic rods (576) on both sides are connected by a toothed plate (577). The toothed plate (577) meshes with multiple transmission gears (575). Multiple air holes (574) are arranged in a circular pattern on the rotating disk (573). The electric telescopic rod (576) is electrically connected to a humidity sensor.

4. A humidifier for a sealed experimental chamber according to claim 3, characterized in that: The centers of the multiple air holes (574) are all on the same circumference, and the radius of the circumference formed is the same as the distance from the center of the air outlet (55) to the center line of the rotating shaft (572). The diameters of the multiple air holes (574) gradually increase, and the air hole (574) with the largest diameter is consistent with the air outlet (55).

5. A humidifier for a sealed experimental chamber according to claim 3, characterized in that: The air volume compensation component (58) includes a transmission rod (581), a push wedge (582), a through hole (583), a linkage rod (584), a top plate (585), a connecting spring (586), a driven wedge (587), a baffle (588), and an air outlet (589). A transmission rod (581) is installed on the toothed plate (577), and a push wedge (582) is installed on the transmission rod (581). Through holes (583) are symmetrically opened on both sides of the top of the box (21). A linkage rod (584) is slidably installed in the through hole (583). The top of the linkage rod (584) is connected to the top plate (585). The top plate (585) is connected to the top of the box (21) by a connecting spring (586). A driven wedge (587) is installed on the top plate (582). The driven wedge (587) and the push wedge (582) are in inclined engagement. A baffle (588) is installed at the bottom of the linkage rod (584). Multiple air vents (589) are opened on the baffle (588). The multiple air vents (589) correspond one-to-one with the multiple air inlets (53).

6. A humidifier for a sealed experimental chamber according to claim 5, characterized in that: The air vent (589) is a combination of an isosceles trapezoid and a rectangle, and the rectangle is the same size as the air inlet (53). In the initial state, the fitting area between the air vent (589) and the air inlet (53) is the smallest.

7. A humidifier for a sealed experimental chamber according to claim 1, characterized in that: The water supply unit (4) includes a pure water tank (401), a water pump (402), a suction pipe (403), and a delivery pipe (404). The chamber (3) is equipped with a pure water tank (401) and a water pump (402). The input end of the pure water tank (401) and the water pump (402) are connected through a water suction pipe (403). The output end of the water pump (402) is connected to the drip pipe (23) through a water delivery pipe (404). The water pump (402) is electrically connected to a humidity sensor.

8. A humidifier for a sealed experimental chamber according to claim 7, characterized in that: A box plate (405) can be detachably installed on the chamber (3).

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