Heating body capable of enhancing heat conduction and drying and disinfecting device

Abstract

On the first aspect, the heating body for enhancing heat conduction comprises at least one heating body, and a graphene layer is arranged on the side, facing a working cavity, of the heating body; the graphene layer can increase the heat conduction effect and increase the gas heating effect; and heat on the other side can be guided to the side where the graphene is located, so that overflow of the heat on the other side is reduced. The second party provides a drying and disinfecting device comprising the heating body in the first party. The drying and disinfecting device comprises a shell and an inner container. An air inlet is formed in the bottom of the shell; an air inlet is formed in the bottom of the inner container, and an air outlet is formed in the top of the inner container; a mounting space is arranged between the bottom of the inner container and the shell, is used for mounting a heating body, is communicated with the inner container through the air inlet, and is communicated with the outside through the air inlet. According to the drying and disinfecting device, the heating body is good in heating effect, the heating body is arranged at the bottom of the drying and disinfecting device, direct contact with the article containing space is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] This application relates to the field of disinfection and drying cabinet technology, specifically to a heating element that enhances heat conduction and a drying and disinfection device. Background Technology

[0002] As people pay more attention to health and hygiene, the demand for disinfection of daily necessities is gradually increasing, especially for mothers and babies, where there is a high demand for the disinfection and sterilization of items such as baby bottles, tableware, and toys. Most of the mother and baby sterilizers on the market use steam sterilization. Specifically, a heating mechanism is set up inside the sterilizer to heat the air flowing into the sterilizer, thereby evaporating the liquid on the items inside the sterilizer to achieve the effects of disinfection, drying, and sterilization.

[0003] However, in most existing disinfection cabinets, the heating mechanism is to install heating elements on the inner liner. The side of the heating element facing the inner liner directly contacts the air inside the liner for direct heating. This heating structure increases the probability that items or users will come into direct contact with the heating mechanism, increasing safety hazards. Furthermore, although the heating element is directly installed on the inner liner, the contact area between the side of the heating element facing the inner liner and the gas is small, resulting in poor heating effect.

[0004] Therefore, the heating structure in existing disinfection cabinets has room for further improvement. Utility Model Content

[0005] In view of this, and in response to the technical problems of high safety hazards and poor heating effect of the heating structure of the existing disinfection cabinet, this application provides a heating element and a drying and disinfection device that enhances heat conduction. The heating element is provided with a graphene layer, which can increase the heat conduction effect of the heating element, so as to improve the heating effect of the drying and disinfection device containing the heating element. The heating element is located at the bottom of the drying and disinfection device to avoid direct contact with the space where the items are placed, thereby reducing safety hazards.

[0006] In a first aspect, this application provides a heating element that enhances heat conduction, comprising:

[0007] At least one heating element;

[0008] The graphene layer is located on the side of the heating element facing the working cavity.

[0009] Compared with the prior art, in this application, a graphene layer is provided on the side of the heating element facing the working cavity. The graphene layer can increase the thermal conductivity of the heating element to further conduct heat to the outflowing gas, thereby increasing the heating effect on the gas. Furthermore, the graphene layer is provided on the side of the heating element facing the working cavity, which can guide the heat from the other side to the side where the graphene layer is located, thereby reducing the heat overflow from the other side.

[0010] Preferred options also include:

[0011] A connecting plate, located on the side of the heating element facing the working cavity, is used to connect two heating elements;

[0012] The connecting plate is provided with an air vent, which is located between the two heating elements.

[0013] In this embodiment, the connecting plate can connect the two heating elements while the air vents on it allow gas to pass through, ensuring that the gas has full contact with the two heating elements.

[0014] Preferred options also include:

[0015] Mounting holes are provided on the connecting plate and located at both ends of the air inlet;

[0016] The length of the air vent extends parallel to the length of the heating element, and the length of the air vent is less than the length of the heating element.

[0017] In this embodiment, the mounting hole allows for the insertion of a connector to facilitate the installation of the heating element; the air vent is arranged parallel to the heating element, which can further increase the contact area between the gas and the heating element.

[0018] Preferred options also include:

[0019] A groove is provided at the end of the heating element parallel to the air outlet direction, and the groove is recessed towards the center of the heating element;

[0020] The surface of the groove is an arc surface.

[0021] In this embodiment, the groove can increase the surface area of ​​the heating element and the contact area with the gas; the graphene layer has good thermal conductivity.

[0022] Secondly, this application provides a drying and sterilization apparatus, comprising a heating element for enhanced heat conduction as described in any embodiment of the first aspect, characterized in that it includes:

[0023] The housing has an air inlet at the bottom and an exhaust outlet at the top.

[0024] The inner liner is located inside the outer shell, with an air inlet at the bottom and an air outlet at the top;

[0025] The inner liner has an installation space between its bottom and the outer shell. The installation space is used to install the heating element. The installation space is connected to the inner liner through the air inlet and is also connected to the outside through the air inlet.

[0026] Compared with the prior art, the drying and disinfection device of this application includes a heating element in the first aspect. The heating element has a better heating effect. The heating element is located at the bottom of the inner tank and is used to heat the gas entering the shell. The heated gas can enter the inner tank to dry, disinfect and sterilize the items inside the inner tank. Furthermore, the heating element is located at the bottom of the drying and disinfection device to avoid direct contact with the space where the items are placed, thereby reducing safety hazards.

[0027] Preferably, the air inlet includes a main air inlet and a secondary air inlet, the main air inlet being located in the middle of the bottom of the inner liner, and the secondary air inlet being located on the side of the bottom of the inner liner;

[0028] Multiple main air inlets are provided, and the multiple main air inlets are equally spaced parallel to the length extension direction of the heating element.

[0029] Multiple secondary air inlets are provided, and these secondary air inlets are arranged at equal intervals parallel to the length extension direction of the heating element.

[0030] In this embodiment, the air inlet includes a main air inlet and a secondary air inlet, which can uniformly introduce air into the inner liner to ensure the drying, disinfection and sterilization effects on the items inside the inner liner.

[0031] Preferred options also include:

[0032] A mounting base, located within the mounting space, is used to mount the heating element;

[0033] The top of the mounting base is connected to the bottom of the inner liner, and there is a gap between the bottom of the mounting base and the shell;

[0034] The mounting base has an air inlet at its bottom and a mounting cylinder that mates with the mounting hole.

[0035] In this embodiment, the mounting base can install the heating element, giving the heating element an independent installation space and preventing it from contacting other items; at the same time, the mounting cylinder and mounting hole cooperate to allow the same connector to be inserted, thereby suspending the heating element in the air, further increasing the contact area between the gas and the heating element, and increasing the heating effect.

[0036] Preferably, in a horizontal projection, the projection of the air inlet is covered by the projection of the mounting base;

[0037] Wherein, the projection of the air inlet does not overlap with the projection of the air inlet hole, the projection of the secondary air inlet is covered by the projection of the air inlet hole, and the projection of the main air inlet does not overlap with the projection of the air inlet hole.

[0038] In this embodiment, by setting the position of each air vent, the gas flow path can be increased, ensuring that the gas is in full contact with the heating element and that the gas is fully heated. At the same time, the chimney effect is increased, so that the gas in the drying and disinfection device can be quickly discharged, reducing the cooling and drying time.

[0039] Preferably, the heating element is configured as two groups, and the two groups of heating elements are arranged at intervals perpendicular to the length extension direction of the heating element;

[0040] The main air inlet is configured in two rows, and the two rows of main air inlets are located between the two sets of heating elements;

[0041] The secondary air inlets are configured in two rows, with the two rows of secondary air inlets respectively located on both sides of the two rows of main air inlets;

[0042] The two sets of heating elements are located between the two sets of air inlets;

[0043] The air inlet is located in the middle of the bottom of the housing.

[0044] In this embodiment, two sets of heating elements are provided, which can increase the heating effect of the drying and sterilization device.

[0045] Preferably, the area of ​​the main air inlet is A1, and the area of ​​the secondary air inlet is A2, wherein A1 ≥ 4A2;

[0046] The area of ​​the air inlet is A3, where A3 > A1;

[0047] The area of ​​the air inlet is A4, where A4 > A1.

[0048] In this embodiment, the area of ​​the main air inlet is set to be more than four times the area of ​​the secondary air inlet, which ensures that a large amount of gas still needs to enter the inner liner through the main air inlet, so that a large amount of gas can be fully heated. Attached Figure Description

[0049] Figure 1 This is a three-dimensional structural schematic diagram of a heating element for enhancing heat conduction provided in an embodiment of this application;

[0050] Figure 2 yes Figure 1 A magnified view of part A;

[0051] Figure 3 This is a three-dimensional structural schematic diagram of a drying and disinfection device provided in an embodiment of this application;

[0052] Figure 4 This is a cross-sectional structural schematic diagram of a drying and sterilization device provided in an embodiment of this application;

[0053] Figure 5 yes Figure 4A magnified schematic diagram of part B.

[0054] Reference numerals: 1. Heating element; 2. Shell; 3. Inner liner; 4. Mounting base;

[0055] 11. Heating element; 12. Connecting plate; 13. Air vent; 14. Mounting hole; 15. Groove;

[0056] 21. Air intake; 22. Exhaust outlet;

[0057] 31. Main air inlet; 32. Secondary air inlet; 33. Air outlet;

[0058] 41. Air inlet. Detailed Implementation

[0059] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0060] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0061] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the drying and sterilization device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0062] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 5 illustrate.

[0063] First aspect

[0064] like Figures 1 to 2 As shown, this application provides a heating element 1 (hereinafter referred to as heating element 1) that enhances heat conduction, which is applied in a disinfection and drying device. It can generate heat by being electrically energized, thereby heating the gas in contact with it to achieve gas heating.

[0065] Specifically, the heating element 1 includes at least one heating element 11, such as Figure 2The heating element 11 shown has a graphene layer on the side facing the working cavity. The graphene layer can increase the thermal conductivity of the heating element 1 to further conduct heat to the outflowing gas and increase the heating effect of the gas. In addition, the graphene layer is located on the side of the heating element 11 facing the working cavity, which can guide the heat from the other side to the side where the graphene layer is located, thereby reducing the heat overflow from the other side.

[0066] Furthermore, heating element 1 will be described in more detail; such as Figure 1 , Figure 2 As shown, the heating element 11 has a long strip structure. The heating element 1 also includes a connecting plate 12, which is also a long strip structure. The length extension direction of the connecting plate 12 is parallel to the length extension direction of the heating element 11. The connecting plate 12 is located on the side of the heating element 11 facing the working cavity, so as to connect the two heating elements 11. That is, the two sides of the connecting plate 12 are respectively connected to the two heating elements 11, thereby realizing the interval connection of the two heating elements 11. The parallel interval connection between the two heating elements 11 can increase the number of heating units in the heating element 1, thereby improving the heating effect of the heating element 1. Furthermore, the interval between two adjacent heating elements 1 can maintain the gap between the heating elements 11, so as to ensure that the gas can flow between the two heating elements 11 without reducing the contact area between the entire heating element 1 and the gas, thus ensuring a better heating effect.

[0067] In this embodiment, the surface of the connecting plate 12 is flush with the surface of the heating element 11, and the graphene layer is also covered on the surface of the connecting plate 12 to increase the heat conduction effect. In this embodiment, the connecting plate 12 is located on the side facing the working cavity, and the thickness of the connecting plate 12 is less than the thickness of the heating element 11. This can reduce the obstruction of the surface area of ​​the heating element 11 by the connecting plate 12, thereby ensuring that the surface of the heating element 11 has enough space to contact the gas to ensure the heating effect.

[0068] Among them, such as Figure 2 As shown, the connecting plate 12 is provided with an air inlet 13. The air inlet 13 penetrates the connecting plate 12 along the thickness direction. The air inlet 13 is a long strip structure. The length extension direction of the air inlet 13 is parallel to the length extension direction of the heating element 11. The air inlet 13 is located between the two heating elements 11 to allow gas to pass through and ensure that the gas has sufficient contact with the two heating elements 11. The width of the air inlet 13 perpendicular to its length extension direction is smaller than the gap between the two heating elements 11, and the length of the air inlet 13 is smaller than the length of the heating element 11, thereby ensuring the connection strength between the connecting plate 12 and the heating element 11.

[0069] Furthermore, such as Figure 1 , Figure 2As shown, the connecting plate 12 is provided with mounting holes 14. The mounting holes 14 are located at both ends of the air inlet 13. The mounting holes 14 and the air inlet 13 are spaced apart. The mounting holes 14 are used for the connecting parts to pass through, so that the heating element 1 can be installed without contacting the heating element 11, thereby reducing the obstruction of the surface of the heating element 11.

[0070] Based on any of the above embodiments, the heating element 1 can be further extended; such as... Figure 1 , Figure 2 As shown, grooves 15 are provided on both sides of the heating element 11 along the length of the heating element 11 and parallel to the air outlet direction. The grooves 15 are recessed towards the center of the heating element 11 to increase the surface area of ​​the side of the heating element 11, increase the contact area with the gas, and increase the heating effect on the gas.

[0071] The surface of the groove 15 is arc-shaped, which facilitates the forming of the heating element 11, increases the smooth guiding effect of the gas, reduces the obstruction of the gas, and facilitates the rapid flow of the gas.

[0072] It should be noted that in this application, the length extension direction of the heating element 11 is the front-to-back direction, the thickness direction of the heating element 11 is the up-to-down direction, and the groove 15 is provided on the left and right sides of the heating element 11.

[0073] Second aspect

[0074] This application provides a drying and sterilization device, which includes a heating element 1 with enhanced heat conduction provided in the first aspect. The drying and sterilization device is provided with a space for placing items and is capable of drying, sterilizing and sterilizing items.

[0075] Specifically, such as Figures 3 to 5 As shown, the drying and sterilization device also includes a door panel assembly, a shell 2, and an inner liner 3. The inner liner 3 is disposed inside the shell 2, and there is a gap between the shell 2 and the inner liner 3. The front ends of the shell 2 and the inner liner 3 are provided with openings. The door panel assembly is hinged to the front side wall of the shell 2, and the door panel assembly can close the front openings of the shell 2 and the inner liner 3. The inner liner 3 is provided with a shelf for placing items.

[0076] The shell 2 has an air inlet 21 at its bottom and an exhaust outlet 22 at its top; the inner liner 3 has an air inlet at its bottom and an air outlet 33 at its top; the air inlet 21 communicates with the outside, allowing outside air to flow into the space between the shell 2 and the inner liner 3; the exhaust outlet 22 communicates with both the external environment and the air outlet 33 of the inner liner 3, allowing hot air from the inner liner 3 to be discharged into the external environment via the exhaust outlet 22; and an installation space exists between the bottom of the inner liner 3 and the shell 2, which is used to install any of the features provided in the first aspect. In the embodiment, the heating element 1 has an installation space that is connected to both the air inlet and the air intake 21, so that the gas entering from the air intake 21 of the housing 2 can enter the installation space, exchange heat with the heating element 1, and be converted into hot air. The hot air then enters the inner liner 3 through the air intake to dry the items in the inner liner 3. At the same time, the high temperature achieves the effect of sterilization and disinfection. The hot air then flows out from the air outlet 33 above the inner liner 3 to the space between the inner liner 3 and the housing 2, and then flows out to the external environment through the exhaust port 22 of the housing 2.

[0077] In this embodiment, the exhaust port 22 and the air inlet 21 are located at the upper and lower ends of the housing 2, respectively, thereby lengthening the steam discharge distance in the vertical space. This ensures that the chimney effect can be fully utilized, allowing for faster steam removal, reducing the cooling time of the disinfection cabinet, and improving ease of use. Furthermore, the heating element 1 is positioned at the bottom of the drying and disinfection device, preventing direct contact between the heating element 1 and the item placement space, thus reducing safety hazards.

[0078] Furthermore, such as Figure 4 , Figure 5 As shown, the drying and sterilization device also includes a mounting base 4, which is located within the installation space for mounting the heating element 1; as Figure 5 As shown, the mounting base 4 has a box-shaped structure. The vertical width of the mounting base 4 is greater than the vertical thickness of the heating element 1. The top of the mounting base 4 is connected to the bottom of the inner liner 3 by bolts or other connecting parts. There is a gap between the bottom of the mounting base 4 and the shell 2 to allow sufficient space for gas flow; wherein, as Figure 5 As shown, the bottom of the mounting base 4 is provided with an air inlet 41. The air inlet 41 has a strip-shaped structure and multiple air inlets 41 are provided. The multiple air inlets 41 are equidistantly spaced along the extension direction parallel to the length of the heating body 1, so that the gas entering the installation space through the housing 2 can enter the mounting base 4 through the air inlet 41 and come into contact with the heating body 1, thereby achieving the effect of heating the gas.

[0079] The mounting base 4 is provided with a mounting cylinder that mates with the mounting hole 14. The bottom of the mounting cylinder is fixedly connected to the bottom of the mounting base 4. The mounting cylinder and the mounting hole 14 are coaxially arranged so that the same connector can be inserted to achieve the connection and fixation between the heating element 1 and the mounting base 4. The height of the mounting cylinder is greater than the thickness of the heating element 1, but the height of the mounting cylinder is less than the vertical width of the mounting base 4, so that there is a gap between the top of the heating element 1 and the bottom of the inner liner 3 and the bottom of the mounting base 4, so that the heating element 11 of the heating element 1 is partially suspended in the air. This ensures that the surface of the heating element 11 of the heating element 1 can fully contact the air, improves the utilization rate of the heating element 1, and greatly improves the heating effect on the gas.

[0080] In this embodiment, the width of the heating element 1 is smaller than the width of the mounting base 4, so that the upper, lower, left, right, front and rear sides of the heating element 1 do not contact the mounting base 4 or the inner liner 3, thereby ensuring the contact rate between the heating element 1 and the gas in the air and further improving the heating effect on the gas.

[0081] In this embodiment, as Figure 4 As shown, the heating element 1 is set in two groups, with the two groups of heating elements 1 spaced apart in the left-right direction, and the two groups of heating elements 1 are symmetrically arranged on both sides of the center line of the drying and disinfection device; correspondingly, each group of heating elements 1 is provided with a mounting base 4.

[0082] Based on the above embodiments, the drying and sterilization device can be further expanded; such as... Figure 5 As shown, the air inlet includes a main air inlet 31 and a secondary air inlet 32. The main air inlet 31 is located in the middle of the bottom of the inner liner 3, and the secondary air inlet 32 ​​is located on the side of the bottom of the inner liner 3. There are multiple main air inlets 31, which are equidistant from each other in the front-back direction to form a row of main air inlets 31. There are multiple secondary air inlets 32, which are equidistant from each other in the front-back direction to form a row of secondary air inlets 32. In this embodiment, the area of ​​the main air inlet 31 is A1, and the area of ​​the secondary air inlet 32 ​​is A2, where A1 ≥ 4A2. That is, the area of ​​the main air inlet 31 is much larger than that of the secondary air inlet 32, meaning that the air intake of the main air inlet 31 is much larger than that of the secondary air inlet 32. This ensures that a large amount of gas still needs to enter the inner liner 3 through the main air inlet 31, so that a large amount of gas can be fully heated. The secondary air inlets 32 are located on both sides of the inner liner 3, which ensures that a small amount of hot air can enter the inner liner 3 through the secondary air inlets 32, ensuring a uniform air intake effect of hot air in the inner liner 3, ensuring uniform heating of the inner liner 3, and improving the drying, disinfection, and sterilization effect on the items inside the inner liner 3.

[0083] In this application, such as Figure 4 , Figure 5As shown, the main air inlet 31 is arranged in two rows. The two rows of main air inlets 31 are arranged between the two groups of heating elements 1, and the two rows of main air inlets 31 are symmetrically arranged on both sides of the center line of the drying and disinfection device; the secondary air inlet 32 is arranged in two rows, and the two rows of secondary air inlets 32 are respectively arranged on both sides of the two rows of main air inlets 31; the air inlet holes 41 of the mounting base 4 of each group of heating elements 1 are arranged on the side away from the other heating element 1, that is, the air inlet holes 41 of the left heating element 1 are arranged on the left, and the air inlet holes 41 of the right heating element 1 are arranged on the right, so that the two groups of heating elements 1 are located between the two groups of air inlet holes 41; among them, the air inlet 21 is arranged in the middle of the bottom of the housing 2.

[0084] Further, as Figure 4 、 Figure 5 shown, in the horizontal projection, the projection of the air inlet is covered by the projection of the mounting base 4, that is, the horizontal space of the mounting base 4 completely covers the horizontal area of the air inlet, so that the air inlet is connected to the space inside the mounting base 4, and the heated gas inside the mounting base 4 can flow into the inner tank 3 from the air inlet;

[0085] Among them, the projection of the air inlet 21 does not overlap with the projection of the air inlet hole 41, so that after the gas enters the housing 2 through the air inlet 21, it needs to turn and bend before entering the mounting base 4, increasing the flow path of the gas, ensuring that the gas has enough time to fully contact the heating element 1, and ensuring the heat exchange effect;

[0086] Among them, the projection of the secondary air inlet 32 is covered by the projection of the air inlet hole 41, and the projection of the main air inlet 31 does not overlap with the projection of the air inlet hole 41, so that when a large amount of heated gas enters the inner tank 3 through the main air inlet 31, the flow path increases, enabling the gas to have enough time and space to fully contact the heating element 1, ensuring the heat exchange effect; and a small amount of gas can directly enter the inner tank 3 quickly through the secondary air inlet 32, improving the drying effect of the drying and disinfection device.

[0087] In this embodiment, due to the position settings among the main air inlet 31, the air inlet hole 41, and the air inlet 21, the flow path of the gas flowing into the housing 2 and reaching the inner tank 3 is approximately "zigzag" to increase the flow path of the gas, so that the gas has enough space and time to fully complete heat exchange, ensuring the heating effect on the gas, and then improving the drying, disinfection, and sterilization effects of the drying and disinfection device. [[ID=D18]]

[0088] In this embodiment, the area of the air inlet hole 41 is A3, where A3 > A1; the area of the air inlet 21 is A4, where A4 > A1, that is, the area of the air inlet hole 41 is larger than the areas of the air inlet and the air inlet 21, so that the unheated gas has enough space to enter the mounting base 4 through the air inlet hole 41, reducing the pressure difference and ensuring the smooth flow of the gas.

[0089] In practical applications, the gas flow path is as follows: Figure 5 As shown, the gas flows in from the middle of the housing 2 and splits into two directions, flowing to the mounting bases 4 on both sides respectively;

[0090] For example, in the mounting base 4 on the left, after the gas passes through the air inlet 21 of the housing 2, it flows to the left and enters the mounting base 4 through the air inlet 21 on the left side of the mounting base 4. The gas entering the mounting base 4 comes into full contact with the heating element 1 and exchanges heat to convert it into hot air.

[0091] Most of the gas flows to the right and splits when it encounters the heating element 1. It passes through the upper end face, lower end face, and between the two heating elements 1 respectively, and then enters the inner liner 3 through the main air inlet 31. This ensures that the gas is in full contact with the heating element 1, improves the utilization rate of the heating element 1, and improves the heating effect on the gas.

[0092] The small amount of gas inside the mounting base 4 passes directly through the secondary air inlet 32 ​​into the inner liner 3 to achieve uniform air intake for the inner liner 3.

[0093] It should be noted that the various embodiments of this application can be arbitrarily combined into new embodiments, provided that the solutions do not conflict and the technical solutions can coexist.

[0094] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A heating element that enhances heat conduction, characterized in that, include: At least one heating element (11); A graphene layer is disposed on the side of the heating element (11) facing the working cavity.

2. The heating element for enhanced heat conduction according to claim 1, characterized in that, Also includes: A connecting plate (12) is provided on the side of the heating element (11) facing the working cavity, and is used to connect the two heating elements (11); The connecting plate (12) is provided with an air vent (13), which is located between the two heating elements (11).

3. The heating element for enhanced heat conduction according to claim 2, characterized in that, Also includes: Mounting holes (14) are provided on the connecting plate (12) and located at both ends of the air inlet (13); The length extension direction of the air vent (13) is parallel to the length extension direction of the heating element (11), and the length of the air vent (13) is less than the length of the heating element (11).

4. The heating element for enhanced heat conduction according to claim 1, characterized in that, Also includes: A groove (15) is provided at the end of the heating element (11) parallel to the air outlet direction, and the groove (15) is recessed toward the center of the heating element (11); The surface of the groove (15) is an arc surface.

5. A drying and sterilization apparatus, comprising a heating element for enhanced heat conduction as described in any one of claims 1 to 4, characterized in that, include: The housing (2) has an air inlet (21) at the bottom and an exhaust outlet (22) at the top. The inner liner (3) is located inside the shell (2), with an air inlet at the bottom and an air outlet (33) at the top. The inner liner (3) has an installation space between its bottom and the shell (2). The installation space is used to install the heating element (1). The installation space is connected to the inner liner (3) through the air inlet and to the outside through the air inlet (21).

6. The drying and sterilization apparatus according to claim 5, characterized in that, The air inlet includes a main air inlet (31) and a secondary air inlet (32). The main air inlet (31) is located in the middle of the bottom of the inner liner (3), and the secondary air inlet (32) is located on the side of the bottom of the inner liner (3). Multiple main air inlets (31) are provided, and the multiple main air inlets (31) are arranged at equal intervals parallel to the length extension direction of the heating element (11); Multiple secondary air inlets (32) are provided, and the multiple secondary air inlets (32) are arranged at equal intervals parallel to the length extension direction of the heating element (11).

7. The drying and sterilization apparatus according to claim 6, characterized in that, Also includes: Mounting base (4) is provided in the installation space for mounting heating element (1). The top of the mounting base (4) is connected to the bottom of the inner liner (3), and there is a gap between the bottom of the mounting base (4) and the shell (2); The mounting base (4) has an air inlet hole (41) at the bottom and a mounting cylinder that mates with the mounting hole (14) on the mounting base (4).

8. The drying and sterilization apparatus according to claim 7, characterized in that, In a horizontal projection, the projection of the air inlet is covered by the projection of the mounting base (4); Among them, the projection of the air inlet (21) does not overlap with the projection of the air inlet (41), the projection of the secondary air inlet (32) is covered by the projection of the air inlet (41), and the projection of the main air inlet (31) does not overlap with the projection of the air inlet (41).

9. The drying and sterilization apparatus according to claim 8, characterized in that, The heating element (1) is configured in two groups, and the two groups of heating elements (1) are arranged at intervals perpendicular to the length extension direction of the heating element (11); The main air inlet (31) is configured in two rows, and the two rows of main air inlets (31) are located between the two sets of heating elements (1); The secondary air inlets (32) are configured in two rows, with the two rows of secondary air inlets (32) respectively located on both sides of the two rows of main air inlets (31); Among them, the two sets of heating elements (1) are located between the two sets of air inlets (41); The air inlet (21) is located in the middle of the bottom of the housing (2).

10. The drying and sterilization apparatus according to claim 7, characterized in that, The area of ​​the main air inlet (31) is A1, and the area of ​​the secondary air inlet (32) is A2, wherein A1≥4A2; The area of ​​the air inlet (41) is A3, where A3 > A1; The area of ​​the air inlet (21) is A4, where A4 > A1.

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