Plant incense equipment with anti-scald function

Abstract

The utility model provides a plant incensing device with an anti-scald function, which relates to the technical field of incensing appliances, and comprises a shell, a heating element, a drawer, a control assembly and an electronic lock structure, a heating bin is arranged in the shell, and the heating element is arranged in the heating bin; the drawer is connected with the shell in a matched mode and can enter and exit from the placing opening in the side wall of the shell in the horizontal direction. The control assembly comprises a control piece and a temperature sensor electrically connected with the control piece, and the temperature sensor is used for detecting the temperature in the heating bin or the drawer; the electronic lock structure is assembled in the shell and comprises a driving piece and a locking block, the driving piece is electrically connected with the control piece, and the locking block is constructed to trigger the control piece in an operable mode to drive the driving piece to be away from the first locking part on the drawer to achieve unlocking when the temperature detected by the temperature sensor is smaller than a set temperature threshold value. Therefore, the problems that an existing incense device is prone to scalding and inconvenient to use are solved.

Description

Technical Field

[0001] This utility model relates to the field of incense burner technology, and more specifically, to a plant incense burner with anti-scalding function. Background Art

[0002] Incense burners are becoming increasingly common in daily life, especially in the tea industry. Most existing incense burners are steamer-type, generally consisting of a hollow shell, a lid covering the opening of the cavity, and a cage housed within the cavity. The heating element is located at the bottom of the shell and fixedly connected. The cage is placed into the cavity from top to bottom, with the lid covering it. During heating, the lower layer of air at the bottom of the shell heats up and is conducted to the cage. A heat-insulating film, often made of rubber or similar materials, is typically used between the shell and the heating element. While this provides some insulation, the heating element releases irritating gases when heated. Furthermore, opening the cage requires opening the lid first, and neither the lid nor the cage has any safety features. This is particularly problematic during tea incense burning or drying, as users often need to remove the tea leaves for brewing, which can easily result in burns. Additionally, the method of opening the lid first is inconvenient for users. Utility Model Content

[0003] This utility model discloses a plant-based incense burner with anti-scalding function, which aims to improve the problems of easy burns and inconvenience of use of existing incense burners.

[0004] The present invention adopts the following solution:

[0005] A plant-based aromatherapy device with anti-scalding function includes a housing, a heating element, a drawer, a control component, and an electronic lock structure. The housing contains a heating chamber with an inlet on a side wall higher than the heating chamber, and the heating element is installed in the heating chamber. The drawer is adapted to the housing and can move horizontally through the inlet. The control component includes a controller and a temperature sensor, electrically connected to the controller, for detecting the temperature inside the heating chamber or the drawer. The electronic lock structure is assembled within the housing and includes a drive component and a locking block. The drive component is electrically connected to the controller, and the locking block is configured to engage with a first locking part of the drawer when the temperature detected by the temperature sensor is greater than or equal to a set temperature threshold. When the temperature detected by the temperature sensor is less than the set temperature threshold, the controller is operably triggered to drive the drive component away from the first locking part to unlock the drawer.

[0006] As a further improvement, the housing includes an outer shell and an inner shell, with a gap between the outer shell and the inner shell to form a heat-insulating space.

[0007] As a further improvement, the outer shell is a wooden frame, and the inner shell is made of stainless steel.

[0008] As a further improvement, the sides and / or top of the housing are decorated with bronze carvings.

[0009] As a further improvement, the housing is provided with a fan compartment below the heating chamber, the fan compartment is equipped with a fan, the fan compartment is provided with an air inlet communicating with the outside, the top of the housing is provided with an air outlet, and the bottom of the drawer is set with a mesh so that air enters from the air inlet and flows through the drawer and is blown out from the air outlet.

[0010] As a further improvement, the electronic lock structure also includes a first mounting bracket, a first elastic element, and a drive arm. The first mounting bracket is used to be fixedly connected to the housing. One end of the lock block is hinged to a first pivot on the mounting bracket, and the other end is provided with a drive groove adapted to the drive arm. The side of the lock block facing the drawer is provided with a second locking part for cooperating with the first locking part. The first elastic element abuts against the mounting bracket and the other side of the lock block opposite the second locking part.

[0011] As a further improvement, a handle is provided on the front of the drawer, and both the drawer and the handle are made of conductive material that can transmit capacitive signals. The inner wall of the housing is fixed with contacts that are electrically connected to the control components, facing the back of the drawer.

[0012] As a further improvement, the housing is provided with a sensing structure for detecting the drawer switch status. The sensing structure includes a second mounting bracket, a toggle lever, a second elastic element, and a tactile switch electrically connected to the control element. The second mounting bracket is used to fix the housing. One end of the toggle lever is hinged to a second pivot on the second mounting bracket, and the other end is provided with a toggle portion. The toggle lever has a trigger portion protruding towards the drawer side. When the drawer is entered, it abuts against the trigger portion, so that the toggle portion abuts against the tactile switch. The second elastic element abuts against the second mounting bracket and the other side of the toggle lever opposite the trigger portion, so as to drive the toggle lever to reset when the drawer is pulled out.

[0013] As a further improvement, the tactile switch is provided with a spring, the end of which is equipped with a roller. The toggle part is provided with a first inclined surface, and the trigger part is provided with a second inclined surface that slopes upward along the entry direction of the drawer. When the drawer enters the housing along the insertion port, it abuts against the second inclined surface to force the first inclined surface to abut against the roller, thereby triggering the spring to abut against the button on the tactile switch.

[0014] As a further improvement, the heating element includes two PTC heating elements arranged side by side.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] 1. This application incorporates a control component and electronic lock structure within the housing to ensure the drawer is unlocked and pulled out only when its temperature is below a set threshold, thus preventing users from being burned by the bottom of the drawer when removing it. It also prevents damage to tabletops such as coffee tables, dining tables, or tablecloths from heat damage. In use, the user pulls the drawer horizontally out along the insertion opening, places the materials inside, spreads them out, and then pushes the drawer back in along the insertion opening. The heating element then heats the materials to bake them, releasing their aroma and achieving the aromatherapy function. The materials can be tea leaves, licorice root, dried tangerine peel, dried fruit, etc. When the user needs to remove the materials, they simply pull the drawer out along the insertion opening. Compared to existing technologies, there is no need to open the top cover, making operation convenient and user-friendly.

[0017] 2. The casing includes an outer shell and an inner shell, with a gap between them to form an insulated space. Insulation through this gap, rather than using internal insulation cotton, prevents the insulation cotton from producing an irritating odor during heating, thus preserving the fragrance of the incense.

[0018] 3. The casing has a fan compartment below the heating chamber, which houses a fan, preferably a silent cooling fan. The air inlet extends through the bottom of the casing, and the air outlets are located near both ends of the cover. During heating, the control unit drives the fan to rotate intermittently at low speed to ensure a continuous release of aroma. When the drawer needs to be opened, the control unit drives the fan to rotate at high speed to improve heat dissipation efficiency and further prevent burns to the user. Preferably, multiple feet can be provided at the bottom of the casing, which serves both as an anti-slip measure and to elevate the bottom of the casing to ensure adequate airflow at the air inlet.

[0019] 4. The housing is equipped with a sensing structure to detect the drawer's open / closed state, ensuring that the heating element only starts heating after the drawer is pushed into place.

[0020] 5. The heating element includes two PTC heating elements arranged side by side, which improves heating efficiency, provides a large heating area, ensures uniform heating of the material, and results in better heating effect. Furthermore, the two PTC heating elements can be set to two power levels. Users can switch between these two power levels via an interactive interface connected to the control unit, allowing them to select one PTC heating element or use both PTC heating elements simultaneously. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of one embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of one embodiment of the present invention along one section (the curve with the arrow indicates the gas flow direction);

[0024] Figure 3 This is a cross-sectional view of one embodiment of the present invention along another section;

[0025] Figure 4 This is an exploded view of the casing of one embodiment of the present invention;

[0026] Figure 5 and Figure 6 This is a schematic diagram of the electronic lock structure of one embodiment of the present invention from different perspectives;

[0027] Figure 7 This is an exploded view of the electronic lock structure according to one embodiment of this utility model;

[0028] Figure 8 and Figure 9 This is a schematic diagram of the sensing structure of one embodiment of the present invention from different viewing angles;

[0029] Figure 10 This is an exploded view of the induction structure of one embodiment of this utility model;

[0030] Figure 11 This is an exploded view of one embodiment of the present invention.

[0031] icon:

[0032] 1-Shell; 11-Heating chamber; 12-Inlet; 13-Outer shell; 14-Inner shell; 141-Guide plate; 15-Cover; 151-Insulated top plate; 152-Top bronze carving; 153-Air outlet; 16-Side bronze carving; 17-Fan compartment; 171-Air inlet; 18-Foot pad; 19-Reset piece;

[0033] 2-Heating element; 21-PTC heating element;

[0034] 3-Drawer; 31-First locking part; 32-Handle;

[0035] 4-Control component; 41-Control element; 42-Contact;

[0036] 5-Electronic lock structure; 51-Driver; 52-Lock block; 521-Drive groove; 522-Second locking part; 53-First mounting bracket; 531-Pin; 54-First elastic element; 55-Drive arm;

[0037] 6- Fan;

[0038] 7-Sensing structure; 71-Second mounting bracket; 711-Second rotating shaft; 72-Toggle lever; 721-Toggle part; 7211-First inclined surface; 722-Trigger part; 7221-Second inclined surface; 73-Second elastic element; 74-Tact switch; 741-Spring; 742-Roller; 743-Button. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0040] Example

[0041] Combination Figures 1 to 11This embodiment provides a plant aromatherapy device with anti-scalding function, including a housing 1, a heating element 2, a drawer 3, a control component 4, and an electronic lock structure 5. The housing 1 has a heating chamber 11 and an inlet 12 on a side wall higher than the heating chamber 11. The heating element 2 is installed in the heating chamber 11. The drawer 3 is adapted to the housing 1 and can enter and exit the inlet 12 horizontally. The control component 4 includes a control element 41 and a temperature sensor, which is electrically connected to the control element 41 to detect the temperature inside the heating chamber 11 or the drawer 3. The electronic lock structure 5 is assembled inside the housing 1 and includes a drive element 51 and a locking block 52. The drive element 51 is electrically connected to the control element 41. The locking block 52 is configured to engage and lock with the first locking part 31 of the drawer 3 when the temperature detected by the temperature sensor is greater than or equal to a set temperature threshold. When the temperature detected by the temperature sensor is less than the set temperature threshold, the control element 41 is triggered in an operable manner to drive the drive element 51 away from the first locking part 31 to unlock.

[0042] It should be noted that in this embodiment, by setting a control component 4 and an electronic lock structure 5 inside the housing 1, the drawer 3 can only be unlocked and pulled out when its temperature is below a set temperature threshold, thus preventing the user from being burned by the bottom of the drawer 3 when taking it out. In use, the user pulls the drawer 3 horizontally out along the inlet 12, places the material inside and spreads it out, then pushes the drawer 3 back in along the inlet 12. The heating element 2 then heats the material to bake it, releasing its aroma and achieving the aromatherapy function. The material can be tea leaves, licorice root, dried tangerine peel, dried fruit, etc., without specific limitations. When the user needs to remove the material, they can simply pull the drawer 3 out along the inlet 12. Compared with existing technologies, there is no need to open the top cover, making operation convenient and user-friendly.

[0043] For example, the control component 41 is a circuit board, and the temperature sensor is a temperature probe configured on the heating element 2. The set temperature threshold is 40°C. When the temperature value detected by the temperature probe is less than 40°C, the user can trigger the control component 41 by pulling out the drawer 3 or by setting a button on the drawer 3. This causes the control component 41 to drive the driving component 51 to move the locking block 52 away from the first locking part 31 on the drawer 3, thereby unlocking the drawer. When the temperature detected by the temperature probe is greater than or equal to 40°C, the locking block 52 engages with the first locking part 31, locking the drawer 3 and preventing the user from pulling out the drawer 3. This avoids the drawer 3 becoming too hot and causing burns to the user, and also prevents the drawer 3 from being placed on a tabletop such as a coffee table, dining table, or tablecloth and damaging the tabletop. In other embodiments, an indicator light electrically connected to the control component 41 can be added. The indicator light can be set on the side or top of the housing 1. For example, a green light is displayed when the temperature detected by the temperature probe is less than 40°C, and a red light is displayed when the temperature is greater than or equal to 40°C. The user can more intuitively judge the current temperature through the indicator light for user convenience.

[0044] In a preferred embodiment, the housing 1 includes an outer shell 13 and an inner shell 14, with a gap between the outer shell 13 and the inner shell 14 to form a heat-insulating space. The gap is preferably 5-10 mm; for example, the outer walls of the inner shell 14 are spaced 10 mm from the inner walls of the outer shell 13 to prevent burns from accidental contact with the outer wall of the housing 1. Furthermore, using a gap for heat insulation, rather than relying on internal insulation cotton, prevents the insulation cotton from producing an irritating odor during heating, thus preserving the fragrance of the incense.

[0045] Preferably, the outer shell 13 is a wooden frame, and the inner shell 14 is made of stainless steel. The wooden frame can be made of walnut, cherry, mahogany, etc., after being dried under high temperature and pressure, to enhance the aesthetics and texture of the incense burner. Natural wood oil can be applied to the wood, ensuring that no harmful gases are produced even when heated. The stainless steel is 304 food-grade stainless steel, which ensures heat conduction and food safety, preventing the production of any odor when heated. In other embodiments, copper sculptures can be provided on the sides and / or top surface of the outer shell 13. For example, a cover 15 can be provided on the top surface of the outer shell 13. The cover 15 includes a heat-insulating top plate 151 and a top copper sculpture 152. The bottom surface of the top copper sculpture 152 is shaped similarly to the heat-insulating top plate 151. During installation, the top copper sculpture 152, the heat-insulating top plate 151, and the inner shell 14 are fixed together and then inserted into the outer shell 13 for secure connection. Embedding grooves can be provided on the side walls of the wooden frame, into which the side copper sculptures 16 are placed. The bronze sculpture and the wooden frame can be fixed together with adhesive or with connectors, without specific limitations. The bronze sculpture can further enhance the appearance and texture of the equipment. At the same time, the heat insulation plate 151 and the bronze sculpture 152 on the top surface can transfer heat from the heat insulation space to the bronze sculpture 152 on the top surface, thereby improving the heat insulation effect of the heat insulation space.

[0046] Based on the above embodiments, in an optional embodiment of this utility model, the housing 1 has a fan chamber 17 below the heating chamber 11, a fan 6 is installed inside the fan chamber 17, the fan chamber 17 has an air inlet 171 communicating with the outside, the top of the housing 1 has an air outlet 153, and the bottom of the drawer 3 is made of mesh so that air enters from the air inlet 171 and flows through the drawer 3 before being blown out from the air outlet 153. Specifically, the fan 6 is preferably a silent cooling fan, the fan chamber 17 is located at the bottom of the housing 1, the air inlet 171 is provided through the bottom surface of the housing 1, and the air outlet 153 is provided near both ends of the cover 15. During heating, the control component 41 drives the fan 6 to rotate intermittently at low speed so that the aroma can continuously overflow. When it is necessary to open the drawer 3, the control component 41 drives the fan 6 to rotate at high speed to improve heat dissipation efficiency and further prevent the user from being burned. In other embodiments, multiple foot pads 18 can be provided at the bottom of the housing 1. On the one hand, they can play a role in preventing slipping, and on the other hand, they can raise the bottom surface of the housing 1 to ensure the airflow of the air inlet 171.

[0047] Reference Figures 5 to 7In another optional embodiment, the electronic lock structure 5 further includes a first mounting bracket 53, a first elastic element 54, and a drive arm 55. The first mounting bracket 53 is used to be fixedly connected to the housing 1. One end of the lock block 52 is used to be hinged to a first pivot on the first mounting bracket 53, and the other end is provided with a drive groove 521 adapted to the drive arm 55. The side of the lock block 52 facing the drawer 3 is provided with a second locking part 522 for cooperating with the first locking part 31. The first elastic element 54 abuts against the mounting bracket and the other side of the lock block 52 opposite to the second locking part 522. For example, the sidewall of the first mounting bracket 53 is fixedly connected to the inner shell 14 of the housing 1 by screws. The second locking part 522 is sloped, and the first locking part 31 is a groove provided at the bottom of the drawer 3. The inner shell 14 is provided with a guide plate 141 corresponding to the inlet 12. The guide plate 141 is provided with a clearance groove for the second locking part 522 to pass through. The first elastic element 54 is a spring, the driving element 51 is a servo motor, and the first rotating shaft is a pin 531 disposed on the first mounting bracket 53. The first rotating shaft, the locking block 52, the driving arm 55, and the rotating shaft of the servo motor constitute a crank-slider mechanism. The driving groove 521 of the locking block 52 is spoon-shaped, that is, a semi-open structure with the upper end open and the lower end closed. This ensures that the servo motor will not rotate during the pressing or lifting of the locking block 52, but the servo motor can drive the driving arm 55 to press down to drive the locking block 52 to rotate.

[0048] Furthermore, a handle 32 is provided on the front of drawer 3. Both drawer 3 and handle 32 are made of conductive material capable of transmitting capacitive signals. A contact 42, which is electrically connected to the control component 41, is fixed to the inner wall of housing 1 opposite to the back of drawer 3. The handle 32 is made of copper and is fixed to drawer 3 by screws. When the user pulls handle 32, the transmission path of the capacitive signal is: handle 32 → handle 32 screw → drawer 3 → contact 42 → JST2.54 line → control component 41. Preferably, a reset member 19 is provided between the back of drawer 3 and the inner wall of housing 1. The reset member 19 can be a spring welded to the inner wall of housing 1.

[0049] The working principle of this embodiment is as follows:

[0050] Locking: When drawer 3 is pushed in along the inlet 12, it abuts against the inclined surface of the second locking part 522, so that the locking block 52 overcomes the elastic force of the first elastic member 54 and rotates downward around the first rotating shaft. At this time, the drive arm 55 is stationary. When drawer 3 continues to move until the first locking part 31 is directly opposite the second locking part 522, the locking block 52 engages with the first locking part 31 under the elastic force of the first elastic member 54, thus achieving self-locking.

[0051] Unlocking: When the user pulls handle 32, the capacitance changes. If the temperature detected by the temperature probe is lower than the set temperature threshold, the control unit 41 will drive the servo motor to rotate the drive arm 55, causing the drive arm 55 to abut against the drive groove 521. The corresponding locking block 52 rotates downward around the first rotating shaft, causing the second locking part 522 to disengage from the first locking part 31. Simultaneously, under the action of the reset member 19, the drawer 3 will pop out a certain distance, which is greater than the length of the second locking part 522. Subsequently, the servo motor drives the drive arm 55 to reset, and the locking block 52 resets under the action of the first elastic member 54. If the temperature detected by the temperature probe is greater than or equal to the set temperature threshold, the control unit 41 will not drive the servo motor to rotate.

[0052] Based on the above embodiments, in an optional embodiment of the present invention, referring to... Figures 8 to 10 The housing 1 is provided with a sensing structure 7 for detecting the open / closed state of the drawer 3. The sensing structure 7 includes a second mounting bracket 71, a toggle lever 72, a second elastic member 73, and a tactile switch 74 electrically connected to the control member 41. The second mounting bracket 71 is used to fix the housing 1. One end of the toggle lever 72 is hinged to the second pivot 711 on the second mounting bracket 71, and the other end is provided with a toggle part 721. The toggle lever 72 has a trigger part 722 protruding towards the drawer 3. When the drawer 3 is entered, it abuts against the trigger part 722, so that the toggle part 721 abuts against the tactile switch 74. The second elastic member 73 is provided on the other side of the second mounting bracket 71 and the toggle lever 72 opposite to the trigger part 722, so as to drive the toggle lever 72 to reset when the drawer 3 is pulled out. Preferably, the tactile switch 74 is provided with a spring 741, and a roller 742 is mounted at the end of the spring 741. The toggle part 721 is provided with a first inclined surface 7211, and the trigger part 722 is provided with a second inclined surface 7221 that slopes upward along the entry direction of the drawer 3. When the drawer 3 enters the housing 1 along the insertion port 12, it abuts against the second inclined surface 7221, thereby forcing the first inclined surface 7211 to abut against the roller 742, thereby actuating the spring 741 to abut against the button 743 on the tactile switch 74. When the button 743 is abutted, the drawer 3 is in the closed state; otherwise, it is in the open state.

[0053] In a preferred embodiment, the first mounting bracket 53 and the second mounting bracket 71 have the same structure, and the second locking part 522 and the trigger part 722 have the same shape and are respectively disposed on both sides of the inner shell 14 so that the force on both sides of the drawer 3 is balanced during the process of pushing in and pulling out. In this embodiment, the drawer 3 can be locked and the open / closed state can be detected. The control member 41 can only control the heating member 2 to heat when the drawer 3 is pushed in, and at the same time control the heating duration of the heating member 2, etc.

[0054] It should be mentioned that the sensing structure in this embodiment operates smoothly with low resistance. By using the lever principle, the spring stroke can be shortened, the structure is more compact, and the space occupied is reduced. At the same time, the tactile switch 74 does not directly contact the drawer 3, which can prevent the tactile switch 74 from getting hot and ensure the life of the tactile switch 74.

[0055] In other embodiments, the heating element 2 includes two PTC heating elements 21 arranged side by side. A precision thermistor is installed at the bottom of each PTC heating element 21 to strictly control the temperature. The distance between the bottom of the drawer 3 and the heating element is 5-6 mm. Using two PTC heating elements 21 improves heating efficiency, increases the heating area, and ensures more uniform heating of the material, resulting in better heating effect. Simultaneously, the area of ​​the drawer 3 can be increased, allowing the material to be evenly spread within the drawer 3, ensuring a sufficiently large heating area for effective aromatherapy. In another embodiment, the two PTC heating elements 21 can be configured with two settings. The switching between the two settings can be achieved through an interactive interface connected to the control element 41, allowing selection of one PTC heating element 21 or heating with both PTC heating elements 21. The control element 41 is also connected to a power supply; its circuit structure and principle are existing technologies and will not be described further here.

[0056] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A plant-based incense burner with anti-scalding function, characterized in that, include: The shell contains a heating chamber, and an inlet is provided on the side wall above the heating chamber. A heating element is installed in the heating chamber; A drawer, adapted to and connected to the housing, and capable of horizontally entering and exiting the insertion port; The control component includes a control element and a temperature sensor, wherein the temperature sensor is electrically connected to the control element and is used to detect the temperature inside the heating chamber or the drawer; An electronic lock structure, assembled within the housing, includes a drive unit and a locking block. The drive unit is electrically connected to the control unit. The locking block is configured to engage and lock with the first locking part of the drawer when the temperature detected by the temperature sensor is greater than or equal to a set temperature threshold. When the temperature detected by the temperature sensor is less than the set temperature threshold, the control unit is triggered in an operable manner to drive the drive unit away from the first locking part to unlock the drawer.

2. The plant-based incense burner with anti-scalding function according to claim 1, characterized in that, The housing includes an outer shell and an inner shell, with a gap between the outer shell and the inner shell to form a heat-insulating space.

3. The plant-based incense burner with anti-scalding function according to claim 2, characterized in that, The outer shell is made of wood, and the inner shell is made of stainless steel.

4. The plant-based incense burner with anti-scalding function according to claim 2 or 3, characterized in that, The sides and / or top of the outer casing are decorated with bronze carvings.

5. The plant-based incense burner with anti-scalding function according to claim 1, characterized in that, The housing has a fan compartment below the heating chamber, a fan is installed inside the fan compartment, the fan compartment has an air inlet communicating with the outside, the top of the housing has an air outlet, and the bottom of the drawer is made of mesh so that air enters from the air inlet and flows through the drawer before being blown out from the air outlet.

6. The plant-based incense burner with anti-scalding function according to claim 1, characterized in that, The electronic lock structure further includes a first mounting bracket, a first elastic element, and a drive arm. The first mounting bracket is used to be fixedly connected to the housing. One end of the lock block is hinged to a first pivot on the mounting bracket, and the other end is provided with a drive groove adapted to the drive arm. The side of the lock block facing the drawer is provided with a second locking part for cooperating with the first locking part. The first elastic element abuts against the mounting bracket and the other side of the lock block opposite the second locking part.

7. The plant-based incense burner with anti-scalding function according to claim 1, characterized in that, The drawer is provided with a handle at the front. Both the drawer and the handle are made of conductive material that can transmit capacitive signals. The inner wall of the housing is fixed with contacts that are electrically connected to the control components, facing the back of the drawer.

8. The plant-based incense burner with anti-scalding function according to claim 1, characterized in that, The housing contains a sensing structure for detecting the drawer's open / closed state. The sensing structure includes a second mounting bracket, a toggle lever, a second elastic element, and a tactile switch electrically connected to the control element. The second mounting bracket is used to fix the housing. One end of the toggle lever is hinged to a second pivot on the second mounting bracket, and the other end has a toggle portion. The toggle lever has a trigger portion protruding towards the drawer. When the drawer is entered, it abuts against the trigger portion, causing the toggle portion to abut against the tactile switch. The second elastic element abuts against the second mounting bracket and the toggle lever on the other side opposite the trigger portion, and is used to drive the toggle lever to reset when the drawer is pulled out.

9. The plant aromatherapy device with anti-scalding function according to claim 8, characterized in that, The tactile switch is provided with a spring, and a roller is installed at the end of the spring. The toggle part is provided with a first inclined surface, and the trigger part is provided with a second inclined surface that is inclined upward along the entry direction of the drawer. When the drawer enters the housing along the insertion port, it abuts against the second inclined surface to force the first inclined surface to abut against the roller, thereby triggering the spring to abut against the button on the tactile switch.

10. The plant-based incense burner with anti-scalding function according to claim 1, characterized in that, The heating element includes two PTC heating elements arranged side by side.

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