Battery plate drying device

Abstract

The utility model relates to the field of battery production and manufacturing, in particular to a battery plate drying device. The battery plate drying device comprises a drying box, a ventilation frame, a circulating pipeline, a fan, a heating assembly and a drying and filtering assembly, the drying box is provided with a drying inner cavity, an air inlet and an air outlet; the ventilation frame is arranged in the drying inner cavity and used for bearing a battery plate. The circulating pipeline is connected with the air inlet and the air outlet and communicates with the drying inner cavity to form a circulating flow channel; the fan is connected in series in the circulating pipeline and can drive air to circularly flow between the drying inner cavity and the circulating pipeline; the heating assembly is connected to the circulating pipeline in series and can heat air flowing through the circulating pipeline. The drying and filtering assembly is connected to the circulating pipeline in series and can adsorb and filter dust and moisture in air flowing through the circulating pipeline. The battery pole plate drying device fully dries the battery pole plate, and meanwhile prevents dust and moisture in external air from damaging the battery pole plate.

Description

Technical Field

[0001] The present application relates to the technical field of battery production and manufacturing, and in particular to a battery plate drying device. Background Art

[0002] A lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. It is different from rechargeable lithium-ion batteries and lithium-ion polymer batteries.

[0003] Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of microelectronics technology at the end of the 20th century, the number of miniaturized devices has increased, which puts forward high requirements for power sources. Lithium batteries have entered a large-scale practical stage. The plates in lithium batteries are electrodes composed of active substances and "collectors", and the plates need to be dried during the production process. During the use of the existing drying device, the plates are evenly laid on the air-permeable frame, and the heating mechanism and the air supply mechanism are used to convert the external air into hot air, so as to dry the plates inside the drying device. However, the external air contains a large amount of dust and water molecules. The dust and water molecules will enter the interior of the drying device with the hot air, and then enter or adhere to the surface or inside of the plates, which may cause damage to the plates. Utility Model Content

[0004] The present application provides a battery plate drying device, which can fully dry the battery plate while preventing dust and moisture in the external air from damaging the battery plate.

[0005] In order to achieve the above technical effects, the present application provides a battery plate drying device, comprising:

[0006] A drying box, provided with a drying inner cavity, and an air inlet and an air outlet communicating with the drying inner cavity;

[0007] A ventilation rack, disposed in the drying inner cavity and used to carry the battery plate, the ventilation rack being configured to allow hot air to pass through;

[0008] A circulation duct, connecting the air inlet and the air outlet, and forming a circulation channel for air circulation with the drying inner cavity;

[0009] A fan, connected in series to the circulation pipeline, for driving air to circulate along the drying inner cavity and the circulation pipeline;

[0010] A heating component, connected in series to the circulation pipeline, for heating the air flowing through the circulation pipeline;

[0011] The drying and filtering component is connected in series to the circulation pipeline and is used for absorbing and filtering dust and moisture in the air flowing through the circulation pipeline.

[0012] In some embodiments, the air inlet is connected to the bottom area of ​​the drying inner cavity, and the air outlet is connected to the top area of ​​the drying inner cavity;

[0013] The circulation duct includes an air suction duct, an air guide duct and an air delivery duct which are connected in sequence, the air suction duct connects the air outlet and the first end of the air guide duct, the second end of the air guide duct is connected to the air inlet, the air delivery duct is horizontally laid at the bottom of the drying inner cavity and is connected to the air guide duct through the air inlet, and the air delivery duct is evenly provided with a plurality of air distribution openings on the upper side of the air ventilating frame.

[0014] In some embodiments, the dry filter assembly comprises:

[0015] A drying box connected between the air suction pipe and the air guide pipe;

[0016] The sponge adsorption plate is arranged in the drying box and is used for drying and filtering the air flowing through the drying box.

[0017] In some embodiments, it further includes a mounting shell connected in series to the air duct, the mounting shell including a first mounting cavity and a second mounting cavity that are in conductive communication with each other;

[0018] The heating assembly includes a heating plate arranged in the first installation cavity; the fan is arranged in the second installation cavity.

[0019] In some embodiments, a limiting bracket for fixing the fan is provided in the second installation cavity.

[0020] In some embodiments, a cross bar is provided above the air duct, and the cross bar is rotatably connected to an air balancing blade. The air balancing blade can rotate driven by the hot air discharged from the air balancing port, and blow the hot air discharged from the air balancing port evenly toward the ventilation frame.

[0021] In some embodiments, a suction hood connected to the air outlet is provided on the top of the drying inner cavity, and the suction hood is connected to the suction pipe through the air outlet.

[0022] In some embodiments, a support assembly is further included, wherein the support assembly supports the drying box to a preset height.

[0023] In some embodiments, the support assembly includes support columns and a support bottom plate, a plurality of the support columns are evenly connected and supported at the bottom of the drying box, and the support bottom plate is disposed below the support columns.

[0024] In some embodiments, the drying box is provided with a temperature sensor for detecting the air temperature of the drying inner cavity, and also includes a controller connected to the temperature sensor and the heating assembly.

[0025] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the battery plates to be dried are placed on the ventilation rack of the drying cavity, and since the circulation duct and the drying cavity are connected through the air inlet and the air outlet to form a circulation channel, the air discharged from the drying cavity enters the circulation duct from the air outlet under the drive of the fan, and the drying filter assembly filters out the moisture and dust carried in the air after drying the battery plates, and the heating assembly heats the air again to the required temperature and sends it to the drying cavity through the air inlet to dry the battery plates, and the cycle repeats. The above process isolates the external air from the drying cavity, effectively preventing the moisture and dust carried in the external air from entering the drying cavity to damage the battery plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] Figure 1 A schematic diagram of a battery plate drying device provided in an embodiment of the present application;

[0030] Figure 2 This is the internal structure diagram of the battery plate drying device;

[0031] Figure 3 Figure 1 Schematic diagram of the drying and filtering assembly;

[0032] Figure 4 Schematic diagram of the arrangement of the heating assembly and the fan in the mounting housing.

[0033] Description of reference numerals:

[0034] 1-drying box; 2-ventilation frame; 3-cross bar; 4-rotating shaft; 5-air balancing blade; 6-installation shell; 7-fan; 8-air duct; 9-first installation cavity; 10-heating plate; 11-drying box; 12-sponge adsorption plate; 13-air suction pipe; 14-air suction hood; 15-temperature sensor; 16-detection probe; 17-air duct; 18-controller. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0038] In order to solve the problem in the prior art that battery plates are easily damaged by absorbing dust and moisture in the outside air during the hot air drying process, the present application provides a battery plate drying device, which can prevent dust and moisture in the outside air from damaging the battery plates while fully drying the battery plates.

[0039] The present application provides a battery plate drying device, referring to Figure 1 and Figure 2 The battery plate drying device comprises a drying box 1, a ventilation rack 2, a circulation duct, a fan 7, a heating component and a drying filter component; the drying box 1 is provided with a drying inner cavity, and an air inlet and an air outlet communicated with the drying inner cavity; the ventilation rack 2 is arranged inside the drying inner cavity and is used to carry the battery plates, and the ventilation rack 2 can allow hot air to flow through to dry the battery plates carried thereon; the circulation duct connects the air inlet and the air outlet, and is communicated with the drying inner cavity to form a circulation flow channel; the fan 7 is connected in series in the circulation duct, and can drive the air to circulate between the drying inner cavity and the circulation duct; the heating component is connected in series to the circulation duct, and can heat the air flowing through the circulation duct; the drying filter component is connected in series to the circulation duct, and can absorb and filter the dust and moisture in the air flowing through the circulation duct.

[0040] When drying the battery plates, the battery plates to be dried are placed on the ventilation rack 2 of the drying cavity. Since the circulation duct and the drying cavity are connected through the air inlet and the air outlet to form a circulation channel, the air discharged from the drying cavity enters the circulation duct from the air outlet under the drive of the fan 7. The drying filter assembly filters out the moisture and dust carried in the air after drying the battery plates. The heating assembly heats the air again to the required temperature and sends it to the drying cavity through the air inlet to dry the battery plates, and the cycle repeats. The above process isolates the external air from the drying cavity, effectively preventing the moisture and dust carried in the external air from entering the drying cavity to damage the battery plates.

[0041] The ventilation racks 2 can be stacked in multiple groups from bottom to top in the drying cavity. The front and rear ends of the bottom sides of the ventilation racks 2 are fixedly connected with threaded blocks, and the threaded blocks are fixedly connected to the drying box 1 by bolts. Through the setting of the bolts, the ventilation racks 2 can be quickly disassembled and assembled at the specified position, which greatly improves the efficiency of disassembly and assembly.

[0042] Among them, the air inlet and the air outlet are relative to the drying inner cavity. The air inlet is used to input hot air into the drying inner cavity, and the air outlet is used to output the airflow after drying and cooling the battery plates out of the drying inner cavity. The present application uses a circulation duct to connect the drying inner cavity through the air inlet and the air outlet to form a circulation flow channel, isolate the external air, effectively prevent dust and moisture in the external air from entering the drying inner cavity, and avoid damage to the battery plates.

[0043] The air inlet can be set at the bottom of the side wall of the drying box 1, and communicated with the bottom area of ​​the drying cavity; the air outlet can be set on the top wall of the drying box 1, and communicated with the top area of ​​the drying cavity; that is, the drying cavity realizes a drying method in which air enters from the bottom, air exits from the bottom, and hot air flows from the bottom to the top, so that the hot air can flow through the ventilation rack 2 from bottom to top, and the battery plates on the ventilation rack 2 are fully dried. The circulation duct includes an air suction pipe 13, an air guide pipe 17, and an air supply pipe 8, and the three are connected in sequence. The air suction pipe 13 is connected between the air outlet and the first end of the air guide pipe 17, and the air guide pipe 17 is extended and connected to the air inlet. The air supply pipe 8 is horizontally laid at the bottom of the drying cavity, and is connected to the second end of the air guide pipe 17 through the air inlet, and is sealed relative to the air inlet. The side of the air supply pipe 8 facing the ventilation rack 2, that is Figure 2 The upper side is evenly provided with uniform air outlets, which blow the hot air blown into the drying inner cavity upward evenly along the width direction of the drying inner cavity, thereby achieving uniform drying of the battery plates located in various areas of the drying inner cavity.

[0044] At the same time, in order to facilitate the output of the airflow after drying the battery plates from the drying cavity, an air suction hood 14 is also connected to the top of the drying cavity. The air suction hood 14 is a shell-like structure with a gradually decreasing cross-sectional size from top to bottom, which is convenient for collecting and discharging the airflow after drying and cooling the battery plates. The air suction hood 14 is connected to the air duct 17 through the air outlet.

[0045] Since the airflow after drying the battery plates carries a certain amount of moisture and a small amount of dust (from the battery plates), in order to prevent this moisture and dust from affecting the continuous drying of the battery plates, the present application sets a drying and filtering component in the circulation pipeline.

[0046] like Figure 1 and Figure 3 As shown, in some embodiments, the drying filter assembly is installed and connected between the suction pipe 13 and the first end of the air guide pipe 17, that is, the drying filter assembly is arranged near the air outlet. In specific implementation, the drying filter assembly can be connected in series at an appropriate position of the circulation pipe as needed. In this embodiment, the drying filter assembly includes a drying box 11 and a sponge adsorption plate 12 arranged in the drying box 11. The drying box 11 is a cavity shell structure with openings at both ends. The drying box 11 is fixed to the top of the drying box 1 and is connected to the suction pipe 13 and the air guide pipe 17 respectively. The sponge adsorption plate 12 is respectively arranged to fit the openings at both ends of the drying box 11. The inner side of the sponge adsorption plate 12 is provided with drying particles, which can dry and filter the air flowing through the drying box 11 to prevent dust and moisture from entering the drying cavity again with the hot air.

[0047] like Figure 1 and Figure 4As shown, a mounting shell 6 is provided on the side of the drying box 1, and a first mounting cavity 9 and a second mounting cavity are provided inside the mounting shell 6, which are connected to each other. The first mounting cavity 9 and the second mounting cavity are connected in series in the air duct 17, so that the air flowing out of the drying filter assembly will pass through the first mounting cavity 9 and the second mounting cavity in sequence, and then be evenly sent to each drying area of ​​the drying inner cavity through the air inlet and the air duct 8. Among them, the heating component is installed in the first mounting cavity 9, and can heat the air flowing through the first mounting cavity 9. The heating component adopts a heating plate 10 arranged on the opposite side walls of the first mounting cavity 9, and preferably a graphene heating plate 10 is adopted.

[0048] The fan 7 is installed in the second installation cavity, and is used to provide power for the drying air to circulate in the circulation duct and the drying inner cavity. Under the action of the fan 7, negative pressure is generated at one end of the suction pipe 13, and the suction hood 14 is used to suck the air in the drying inner cavity, and the air carrying moisture after drying the battery plates is extracted. The moisture and dust carried by this part of the air when flowing through the drying filter assembly are filtered out, and it continues to enter the first installation cavity 9 through the air duct 17, and is heated to the set temperature by the heating plate 10 to become hot air, and then is driven by the fan 7 and input into the drying inner cavity in the form of hot air through the air inlet and the air supply pipe 8.

[0049] The second installation cavity is provided with a limit bracket for fixing the fan 7. Specifically, the limit bracket is connected and supported between the two sides of the bottom of the fan 7 and the bottom plate of the second installation cavity. By setting the limit bracket, the fan 7 is supported and fixed, and the shaking of the fan 7 during operation is reduced, so as to achieve the purpose of reducing vibration and noise.

[0050] In some embodiments, the battery plate drying device further includes a temperature sensor 15 and a controller 18, and the controller 18 is connected to the temperature sensor 15 and the heating assembly, respectively. The detection probe 16 of the temperature sensor 15 extends into the drying cavity to detect the temperature of the drying cavity, and feeds back the detected temperature to the controller 18, so that the controller 18 adjusts the power of the heating assembly according to the temperature detected by the temperature sensor 15, thereby adjusting the temperature of the air sent into the drying cavity, and ensuring the drying efficiency of the battery plates.

[0051] like Figure 2 As shown, in order to further improve the uniformity of the hot air blown to each area of ​​the drying cavity and achieve uniform drying of each battery plate, the present application also sets a wind balancing blade 5 above the wind balancing port on the upper side of the air delivery pipe 8. The wind balancing blade 5 is driven to rotate by the hot air input into the drying cavity and flowing upward, and the hot air is evenly transported upward to each area of ​​the drying cavity by the rotation of the wind balancing blade 5, ensuring that the battery plates set in each area of ​​the drying cavity are evenly dried.

[0052] For example, a cross bar 3 is provided above the air duct 8, the cross bar 3 is connected between the inner walls of the drying box 1, the cross bar 3 is connected with a bearing, the wind balancing blade 5 is rotatably connected through the rotating shaft 4 and the inner ring of the bearing, and the outer ring of the bearing is fixed relative to the cross bar 3. Driven by the hot air output from the air duct 8, the wind balancing blade 5 rotates to drive the rotating shaft 4 and the inner ring of the bearing to rotate, thereby achieving wind balancing. The setting of the bearing reduces the resistance of the wind balancing blade 5 to rotate, thereby improving the wind balancing effect.

[0053] In some embodiments, the battery plate drying device further includes a support assembly, which is used to support the drying box 1 to a preset height to prevent the drying box 1 from being in contact with the ground for a long time and causing moisture resurgence. The support assembly mainly includes a plurality of support columns and a support bottom plate, wherein the plurality of support columns are evenly connected to the bottom of the drying box 1, and the support bottom plate is connected below all the support columns. The support bottom plate can increase the support area and improve the support stability of the drying box 1 on the one hand, and can prevent the water vapor rising from the ground from evaporating and corroding the drying box 1 on the other hand.

[0054] In order to facilitate the placement and removal of the battery plates without affecting the airtightness of the drying chamber, the drying box 1 is provided with an airtight door movably connected by a hinge, and a handle is fixedly connected to one side of the outer surface of the airtight door, and a high-temperature resistant sealing gasket is provided around one side of the inner surface. The airtight door is provided to improve the sealing performance of the drying box 1, prevent hot air from escaping from the gap between the airtight door and the drying box 1, reduce the heat loss of the drying chamber, and ensure the drying efficiency.

[0055] When the above-mentioned battery plate drying device is in use, the battery plates are first evenly laid out on the ventilation rack 2; after the laying is completed, the airtight door of the drying box 1 is closed, and then the heating component and the fan 7 are started, and the air is heated by the heating component, and then the air is driven by the fan 7 to circulate between the circulation duct and the heating inner cavity.

[0056] The air is transported to the inner cavity of the drying box 11 through the suction hood 14 and the suction pipe 13, and the water molecules generated during the drying process are adsorbed by the sponge adsorption plate 12 and the desiccant particles to achieve the purpose of drying the air, and can also play a certain role in filtering dust. The air after drying is transported to the first installation cavity 9 through the air duct 17, and the air input by the air duct 17 is continuously heated by the heating plate 10. The air after heating is transported to the air supply pipe 8 and is evenly input into the drying cavity through the air distribution port. When the hot air passes through the air distribution blade 5, it will drive the air distribution blade 5 to rotate. The rotation of the air distribution blade 5 can diffuse the hot air, thereby quickly increasing the temperature of each area of ​​the drying cavity of the drying box 1, and drying the battery plates on the ventilation rack 2.

[0057] This process is repeated to achieve the purpose of closed cycle drying, and prevent the dust and water molecules in the external air from entering the drying cavity due to the inhalation of external air, which may cause damage to the battery plates. In this process, the temperature of the drying cavity can be detected in real time through the cooperation of the temperature sensor 15 and the detection probe 16, and the detected data can be fed back to the controller 18 to adjust the heating power of the heating component to ensure the temperature of the air sent into the drying cavity, thereby ensuring the drying efficiency of the battery plates.

[0058] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0059] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0060] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A battery plate drying device, characterized in that: include: A drying box, provided with a drying inner cavity, and an air inlet and an air outlet communicating with the drying inner cavity; A ventilation rack, disposed in the drying inner cavity and used to carry the battery plate, the ventilation rack being configured to allow hot air to pass through; A circulation duct, connecting the air inlet and the air outlet, and forming a circulation channel for air circulation with the drying inner cavity; A fan, connected in series to the circulation pipeline, for driving air to circulate along the drying inner cavity and the circulation pipeline; A heating component, connected in series to the circulation pipeline, for heating the air flowing through the circulation pipeline; The drying and filtering component is connected in series to the circulation pipeline and is used for absorbing and filtering dust and moisture in the air flowing through the circulation pipeline.

2. The battery plate drying device according to claim 1, characterized in that: The air inlet is connected to the bottom area of ​​the drying inner cavity, and the air outlet is connected to the top area of ​​the drying inner cavity; The circulation duct includes an air suction duct, an air guide duct and an air delivery duct which are connected in sequence, the air suction duct connects the air outlet and the first end of the air guide duct, the second end of the air guide duct is connected to the air inlet, the air delivery duct is horizontally laid at the bottom of the drying inner cavity and is connected to the air guide duct through the air inlet, and the air delivery duct is evenly provided with a plurality of air distribution openings on the upper side of the air ventilating frame.

3. The battery plate drying device according to claim 2, characterized in that: The drying and filtering assembly comprises: A drying box connected between the air suction pipe and the air guide pipe; The sponge adsorption plate is arranged in the drying box and is used for drying and filtering the air flowing through the drying box.

4. The battery plate drying device according to claim 2, characterized in that: It also includes a mounting shell connected in series to the air duct, the mounting shell including a first mounting cavity and a second mounting cavity that are in conductive communication with each other; The heating assembly includes a heating plate arranged in the first installation cavity; the fan is arranged in the second installation cavity.

5. The battery plate drying device according to claim 4, characterized in that: A limiting bracket for fixing the fan is arranged in the second installation cavity.

6. The battery plate drying device according to any one of claims 2 to 5, characterized in that: A cross bar is provided above the air delivery pipe, and the cross bar is rotatably connected with an air balancing blade. The air balancing blade can rotate under the driving of the hot air discharged from the air balancing port, and evenly blows the hot air discharged from the air balancing port toward the ventilation frame.

7. The battery plate drying device according to claim 6, characterized in that: An air suction hood connected to the air outlet is provided on the top of the drying inner cavity, and the air suction hood is connected to the air suction pipe through the air outlet.

8. The battery plate drying device according to any one of claims 1 to 5, characterized in that: It also includes a supporting assembly, which supports the drying box to a preset height.

9. The battery plate drying device according to claim 8, characterized in that: The support assembly includes support columns and a support bottom plate. A plurality of the support columns are evenly connected and supported at the bottom of the drying box, and the support bottom plate is arranged below the support columns.

10. The battery plate drying device according to claim 9, characterized in that: The drying box is provided with a temperature sensor for detecting the air temperature of the drying inner cavity, and also includes a controller connected to the temperature sensor and the heating component.

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