Electric heating air drying oven wind direction swing adjusting mechanism

Abstract

The utility model relates to dry equipment technical field discloses a kind of electric heating blast drying oven air direction swing adjustment mechanism, including cabinet, the swing component for adjusting air direction is installed in the cabinet inner wall, air exchange component for being installed in the cabinet is used to blow dry in the cabinet. The utility model is through the symmetric reverse guide vane design of swing component, makes hot air form horizontal S shape cross convection in the cabinet, significantly improves the hot air penetration rate of corner area, realizes cabinet temperature uniformity optimization, eliminates the local low-temperature area generated due to airflow dead angle, simultaneously uses air exchange component, utilizes exhaust heat to preheat fresh air by cavity wall conduction, both reduce the initial energy consumption of heating rod and reduce exhaust heat loss, realize the heat energy recycling of drying process, significantly improve overall energy efficiency ratio.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to an airflow direction adjustment mechanism for an electric heating blower drying box. Background Technology

[0002] An electric heating drying oven is a constant-temperature drying device that uses electric heating elements to heat air and then forces it to circulate through a centrifugal fan to create hot air convection, thereby evaporating moisture from the materials inside the oven. Its core functions include temperature control, air speed regulation, and humidity management, and it is widely used in laboratories and small-scale production settings.

[0003] In traditional drying ovens using a unidirectional linear airflow mode, hot air flows directly from the air inlet on one side to the exhaust outlet, creating an airflow short circuit. This results in excessively high airflow velocity in the central area of ​​the oven, causing rapid dehydration of the material surface, while the corner areas suffer from insufficient airflow, creating significant low-temperature dead zones. Furthermore, the difference in hot air permeability between stacked materials leads to substantial variations, ultimately resulting in insufficient uniformity of material drying. Therefore, those skilled in the art provide an airflow direction adjustment mechanism for an electrically heated forced-air drying oven to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide an airflow oscillation adjustment mechanism for an electric heating blower drying oven, thereby solving the problems mentioned in the background art above.

[0005] This utility model provides the following technical solution: an electric heating blower drying box air direction swing adjustment mechanism, including a box body, an swing component for adjusting the air direction installed on the inner wall of the box body, and an air exchange component for blowing air and drying inside the box body.

[0006] As a preferred embodiment of the above technical solution, the swing assembly includes a mounting slot, a working chamber, a moving chamber, and an electric push rod. There are two mounting slots and two working chambers. The two mounting slots are symmetrically opened on both sides of the inner wall of the housing. The working chamber is symmetrically opened at the lower part of the housing. The moving chamber is opened at one side of the housing. The electric push rod is fixedly installed at the lower part of one side of the housing. A set of guide plates is rotatably connected to the inner wall of each of the two mounting slots. The two sets of guide plates are centrally symmetrically arranged.

[0007] As a preferred embodiment of the above technical solution, a set of spur gears is rotatably connected to the inner walls of both working chambers. The spur gears correspond one-to-one with the guide plates. The output shaft of each spur gear passes through the top of the inner wall of the working chamber, and the output shaft of each spur gear is fixedly connected to the lower end of the corresponding guide plate. A fixing plate is fixedly connected to the inner walls of both working chambers. A rack is slidably connected to one side of each of the two fixing plates. The two racks mesh with the two sets of spur gears respectively.

[0008] As a preferred embodiment of the above technical solution, a movable plate is slidably connected to the inner wall of the movable cavity. Two symmetrically arranged push rods are fixedly connected to the side of the movable plate near the working cavity. One end of each push rod penetrates the inner wall of one side of the movable cavity, and one end of each push rod is fixedly connected to one end of two racks. The output end of the electric push rod penetrates the housing and is fixedly connected to the middle of one side of the movable plate. Pressure sensors are fixedly installed on both sides of the movable plate.

[0009] As a preferred embodiment of the above technical solution, the ventilation assembly includes an air inlet chamber, a heating chamber, and an exhaust chamber. The air inlet chamber is located at the upper part of the housing, while the heating chamber and the exhaust chamber are both located inside the housing. The exhaust chamber is located outside the heating chamber. An air inlet is located at the bottom of the inner wall of the air inlet chamber, and the air inlet communicates with the heating chamber. An air intake fan is installed on the inner wall of the air inlet. Exhaust ports are located on both sides of the inner wall of the exhaust chamber, and exhaust fans are installed on the inner walls of both exhaust ports.

[0010] As a preferred embodiment of the above technical solution, the bottom of the inner wall of the box is provided with multiple exhaust holes, all of which are connected to the inner wall of the exhaust chamber. Multiple air blowing holes are provided on both sides of the inner wall of the heating chamber, and the multiple air blowing holes are respectively connected to the interior of two mounting slots. Two sets of symmetrically arranged heating rods are fixedly connected to the inner wall of the heating chamber.

[0011] As a preferred embodiment of the above technical solution, air inlets are provided on both sides of the inner wall of the air inlet chamber, and dust filters are fixedly connected to the inner walls of the two air inlets and the two exhaust outlets.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The oscillating component, through periodic deflection and symmetrical counter-oscillating guide plates, causes hot air to form a horizontal S-shaped cross convection within the chamber. The symmetrical counter-rotation of the oscillating component generates cross convection, and hot air is blown out from both sides at opposite angles, effectively breaking the temperature stratification phenomenon caused by traditional unidirectional airflow, significantly improving the hot air penetration rate at the corners of the chamber, thereby optimizing the uniformity of temperature distribution within the chamber and eliminating localized low-temperature areas caused by dead airflow.

[0014] 2. The ventilation component sets the exhaust chamber outside the heating chamber, allowing the waste heat from the exhaust air to be conducted to the fresh air in the heating chamber through the walls between the chambers, forming a passive heat exchange. This effectively reduces the initial heating energy consumption of the heating rod for the fresh air, while also reducing exhaust heat loss, realizing the recycling of heat energy in the drying process, and significantly improving the overall energy efficiency ratio. Attached Figure Description

[0015] Figure 1 A schematic diagram of the main structure of an airflow oscillation adjustment mechanism for an electric heating blower drying oven;

[0016] Figure 2 This is a schematic diagram of the main structure of an electric heating blower drying oven air direction swing adjustment mechanism from another perspective;

[0017] Figure 3 A schematic diagram of the internal structure of an electric heating blower drying oven with an airflow direction swing adjustment mechanism;

[0018] Figure 4 A schematic diagram of the working chamber structure of an airflow direction swing adjustment mechanism for an electric heating blower drying oven;

[0019] Figure 5 A schematic diagram of the guide plate structure of an airflow direction swing adjustment mechanism for an electric heating blower drying oven;

[0020] Figure 6 This is a schematic diagram of the mounting slot and ventilation assembly structure of an electric heating blower drying oven with an air direction swing adjustment mechanism.

[0021] Legend:

[0022] 1. Housing; 2. Swing assembly; 201. Mounting slot; 202. Working chamber; 203. Moving chamber; 204. Electric push rod; 205. Guide plate; 206. Spur gear; 207. Fixed plate; 208. Rack; 209. Moving plate; 210. Top rod; 211. Pressure sensor; 3. Ventilation assembly; 301. Inlet chamber; 302. Heating chamber; 303. Exhaust chamber; 304. Inlet; 305. Inlet fan; 306. Exhaust port; 307. Exhaust fan; 308. Exhaust hole; 309. Air blowing hole; 310. Heating rod; 311. Air inlet; 312. Dust filter. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figures 1-6 As shown, this utility model provides a technical solution: an electric heating blower drying box air direction swing adjustment mechanism, including a box body 1, an swing component 2 for adjusting the air direction installed on the inner wall of the box body 1, and an air exchange component 3 for blowing air to dry the inside of the box body 1.

[0025] Furthermore, an insulated door is hinged to one side of the chamber 1. Multiple material storage racks are fixedly connected inside the chamber 1. Chamber 1 is existing technology. A control panel and temperature sensor are installed on top. The control panel adjusts the heating power output of the ventilation assembly 3, and, in conjunction with the temperature sensor, collects real-time temperature data from multiple points inside the chamber 1 to form a closed-loop control. When the detected temperature deviates from the set value, the control panel dynamically adjusts the heating power and fan speed to maintain a constant temperature for the hot air circulation inside the chamber. Further details are omitted here. The oscillating assembly 2, through periodic deflection and symmetrical counter-oscillation, causes the hot air to circulate within the chamber 1, forming a water-like condensation effect. The S-shaped cross-convection and the symmetrical opposite rotation of the swing component 2 generate cross-convection. Hot air is blown out from both sides at opposite angles, effectively breaking the temperature stratification phenomenon caused by traditional unidirectional airflow. This significantly improves the hot air penetration rate at the corners of the chamber 1, thereby optimizing the uniformity of temperature distribution within the chamber 1 and completely eliminating local low-temperature areas caused by dead airflow. The ventilation component 3 allows the exhaust waste heat to be conducted to the fresh air through the cavity wall, forming a passive heat exchange system. This effectively reduces the initial heating energy consumption of the fresh air and reduces exhaust heat loss, realizing the recycling of heat energy in the drying process and significantly improving the overall energy efficiency ratio.

[0026] As one implementation method in this embodiment, please refer to Figures 1-5 As shown, the swing assembly 2 includes a mounting groove 201, a working chamber 202, a moving chamber 203, and an electric push rod 204. There are two mounting grooves 201 and two working chambers 202. The two mounting grooves 201 are symmetrically opened on both sides of the inner wall of the housing 1. The working chambers 202 are symmetrically opened in the lower part of the inside of the housing 1. The moving chamber 203 is opened in one side of the inside of the housing 1. The electric push rod 204 is fixedly installed in the lower part of one side of the housing 1. A set of guide plates 205 are rotatably connected to the inner wall of each of the two mounting grooves 201. The two sets of guide plates 205 are arranged in a centrally symmetrical manner.

[0027] A set of spur gears 206 are rotatably connected to the inner walls of both working chambers 202. The spur gears 206 correspond one-to-one with the guide plates 205. The output shaft of each spur gear 206 passes through the top of the inner wall of the working chamber 202, and the output shaft of each spur gear 206 is fixedly connected to the lower end of the corresponding guide plate 205. A fixing plate 207 is fixedly connected to the inner walls of both working chambers 202. A rack 208 is slidably connected to one side of each of the two fixing plates 207. The two racks 208 mesh with the two sets of spur gears 206 respectively.

[0028] A movable plate 209 is slidably connected to the inner wall of the movable cavity 203. Two symmetrically arranged push rods 210 are fixedly connected to the side of the movable plate 209 near the working cavity 202. One end of the two push rods 210 penetrates the inner wall of one side of the movable cavity 203, and one end of the two push rods 210 is fixedly connected to one end of two racks 208 respectively. The output end of the electric push rod 204 penetrates the housing 1 and is fixedly connected to the middle of one side of the movable plate 209. Pressure sensors 211 are fixedly installed on both sides of the movable plate 209.

[0029] Furthermore, the electric push rod 204 pushes the moving plate 209 to a horizontal displacement, causing the push rod 210 to drive the rack 208 to move linearly. The rack 208 drives the spur gear 206 to rotate, and the spur gear 206 drives the guide plate 205 to deflect periodically. The two sets of guide plates 205 swing in opposite directions in a centrally symmetrical manner, causing hot air to blow out from both sides at opposite angles, forming a horizontal S-shaped cross airflow path in the center of the box 1. This effectively breaks the temperature stratification phenomenon caused by traditional unidirectional airflow, significantly improves the hot air penetration rate at the corners of the box 1, thereby optimizing the uniformity of temperature distribution inside the box 1 and completely eliminating local low temperature areas caused by dead airflow.

[0030] The pressure sensor 211 is existing technology. The pressure sensor 211 detects the pressure change applied by the moving plate 209 during the movement. When the moving plate 209 contacts the side wall of the moving cavity 203, a reverse force is generated, causing a sudden increase in pressure. The pressure sensor 211 converts the mechanical deformation into an electrical signal, triggering the reversing control circuit of the electric push rod 204 to realize the closed-loop feedback of the reciprocating motion, and realize the centrally symmetrical reverse swing of the guide plate 205. It will not be described in detail here.

[0031] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 6 As shown, the ventilation assembly 3 includes an air inlet chamber 301, a heating chamber 302, and an exhaust chamber 303. The air inlet chamber 301 is located at the upper part of the interior of the housing 1. The heating chamber 302 and the exhaust chamber 303 are both located inside the housing 1. The exhaust chamber 303 is located outside the heating chamber 302. An air inlet 304 is located at the bottom of the inner wall of the air inlet chamber 301. The air inlet 304 is connected to the heating chamber 302. An air intake fan 305 is installed on the inner wall of the air inlet 304. Exhaust ports 306 are provided on both sides of the inner wall of the exhaust chamber 303. An exhaust fan 307 is installed on the inner wall of both exhaust ports 306.

[0032] Multiple exhaust holes 308 are provided at the bottom of the inner wall of the housing 1. All the exhaust holes 308 are connected to the inner wall of the exhaust chamber 303. Multiple air blowing holes 309 are provided on both sides of the inner wall of the heating chamber 302. The multiple air blowing holes 309 are connected to the interior of the two mounting slots 201 respectively. Two sets of symmetrically arranged heating rods 310 are fixedly connected to the inner wall of the heating chamber 302.

[0033] Air inlets 311 are provided on both sides of the inner wall of the air inlet chamber 301, and dust filters 312 are fixedly connected to the inner walls of the two air inlets 311 and the two exhaust outlets 306.

[0034] Furthermore, after being purified by the dust filter 312 at the air inlet 311, the external air is pressurized by the air intake fan 305 and sent into the heating chamber 302. After being heated by the symmetrical heating rods 310, it forms a high-temperature airflow, which is sprayed through the air blowing hole 309 onto the surface of the guide plate 205 in the mounting slots 201 on both sides. Moisture enters the exhaust chamber 303 surrounding the heating chamber 302 through the exhaust hole 308 at the bottom of the housing 1. During the exhaust process of the exhaust fan 307, the wall of the exhaust chamber 303 conducts the exhaust waste heat to the fresh air in the heating chamber 302, forming a passive heat exchange. The fresh airflow re-enters the heating cycle, realizing the cascade utilization of thermal energy.

[0035] Heating rod 310 is existing technology. Heating rod 310 works by resistance heating principle. When the high resistance alloy wire inside is energized, it generates Joule effect to convert electrical energy into heat energy. The heating element is wrapped with an insulating heat-conducting layer and a metal sheath. Heat exchange is completed when the airflow in the heating cavity 302 comes into contact with the surface of the sheath. This will not be described in detail here.

[0036] Working principle: After being purified by the dust filter 312 at the air inlet 311, external air is pressurized by the air intake fan 305 and sent into the heating chamber 302. After being heated by the symmetrical heating rods 310, it forms a high-temperature airflow, which is sprayed through the air blowing holes 309 onto the surface of the guide plates 205 in the mounting slots 201 on both sides. The electric push rod 204 pushes the moving plate 209 to move horizontally, so that the push rod 210 drives the rack 208 to move linearly. The rack 208 drives the spur gear 206 to rotate, and the spur gear 206 drives the guide plates 205 to deflect periodically. The two sets of guide plates 205 swing in opposite directions in a centrally symmetrical manner, so that hot air is blown out from both sides at opposite angles. A horizontal S-shaped cross airflow path is formed in the center of the box 1, which effectively breaks the temperature stratification phenomenon caused by traditional unidirectional airflow and significantly improves the hot air penetration rate at the corners of the box 1, thereby optimizing the uniformity of temperature distribution inside the box 1 and completely eliminating local low temperature areas caused by dead airflow. Moisture enters the exhaust chamber 303 that surrounds the heating chamber 302 through the exhaust hole 308 at the bottom of the box 1. During the exhaust process of the exhaust fan 307, the wall of the exhaust chamber 303 conducts the exhaust waste heat to the fresh air in the heating chamber 302, forming a passive heat exchange. The fresh airflow re-enters the heating cycle, realizing the cascade utilization of thermal energy.

[0037] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An airflow direction adjustment mechanism for an electric heating forced-air drying oven, comprising a housing (1), characterized in that: The inner wall of the box (1) is equipped with a swing assembly (2) for adjusting the air direction, and the box (1) is equipped with a ventilation assembly (3) for blowing and drying the inside of the box (1). The swing assembly (2) includes a mounting groove (201), a working chamber (202), a moving chamber (203), and an electric push rod (204). There are two mounting grooves (201) and two working chambers (202). The two mounting grooves (201) are symmetrically opened on both sides of the inner wall of the box (1). The working chambers (202) are symmetrically opened in the lower part of the inside of the box (1). The moving chamber (203) is opened in one side of the inside of the box (1). The electric push rod (204) is fixedly installed in the lower part of one side of the box (1). A set of guide plates (205) is rotatably connected to the inner wall of each of the two mounting grooves (201). The two sets of guide plates (205) are arranged in a centrally symmetrical manner. The ventilation assembly (3) includes an air inlet chamber (301), a heating chamber (302), and an exhaust chamber (303). The air inlet chamber (301) is located inside the upper part of the housing (1). The heating chamber (302) and the exhaust chamber (303) are both located inside the housing (1). The exhaust chamber (303) is located outside the heating chamber (302). An air inlet (304) is located at the bottom of the inner wall of the air inlet chamber (301). The air inlet (304) is connected to the heating chamber (302). An air intake fan (305) is installed on the inner wall of the air inlet (304). An exhaust port (306) is provided on both sides of the inner wall of the exhaust chamber (303). An exhaust fan (307) is installed on the inner wall of both exhaust ports (306).

2. The airflow direction adjustment mechanism for an electric heating drying oven according to claim 1, characterized in that: A set of spur gears (206) is rotatably connected to the inner walls of both working chambers (202). The spur gears (206) correspond one-to-one with the guide plates (205). The output shaft of each spur gear (206) passes through the top of the inner wall of the working chamber (202), and the output shaft of each spur gear (206) is fixedly connected to the lower end of the corresponding guide plate (205). A fixing plate (207) is fixedly connected to the inner walls of both working chambers (202). A rack (208) is slidably connected to one side of each of the two fixing plates (207). The two racks (208) mesh with the two sets of spur gears (206) respectively.

3. The airflow direction adjustment mechanism for an electric heating forced-air drying oven according to claim 2, characterized in that: A movable plate (209) is slidably connected to the inner wall of the movable cavity (203). Two symmetrically arranged push rods (210) are fixedly connected to the side of the movable plate (209) near the working cavity (202). One end of the two push rods (210) penetrates the inner wall of one side of the movable cavity (203), and one end of the two push rods (210) is fixedly connected to one end of two racks (208). The output end of the electric push rod (204) penetrates the housing (1) and is fixedly connected to the middle of one side of the movable plate (209). Pressure sensors (211) are fixedly installed on both sides of the movable plate (209).

4. The airflow direction adjustment mechanism for an electric heating forced-air drying oven according to claim 1, characterized in that: The bottom of the inner wall of the box (1) is provided with multiple exhaust holes (308), and the multiple exhaust holes (308) are all connected to the inner wall of the exhaust chamber (303). The inner walls on both sides of the heating chamber (302) are provided with multiple air blowing holes (309), and the multiple air blowing holes (309) are respectively connected to the interior of two mounting slots (201). The inner wall of the heating chamber (302) is fixedly connected with two sets of symmetrically arranged heating rods (310).

5. The airflow direction adjustment mechanism for an electric heating drying oven according to claim 1, characterized in that: The air inlet (301) has an air inlet (311) on both sides of the inner wall, and the inner walls of the two air inlets (311) and the two exhaust ports (306) are fixedly connected with dust filter screens (312).

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