A hot air structure and a stove-style tea brewing device

Abstract

This utility model discloses a hot air structure that utilizes an upper air duct, a lower air duct, and a heat insulation cover to form an air duct with central air intake and circumferential air exhaust. A fan wheel is positioned in the center, surrounding the heating elements. The fan wheel accelerates the air intake, and after being heated by the surrounding heating elements, the air is exhausted circumferentially to the outside of the base through the exhaust grille of the heat insulation cover, thereby increasing the ambient air temperature. The air delivery distance is long and uniform, and the heating effect is excellent. This utility model also discloses a stove-style tea brewing device that utilizes a hot air structure to dissipate heat from the incoming cold air onto the power board, improving energy utilization efficiency without requiring an additional heat dissipation structure.

Description

Technical Field

[0001] This utility model belongs to the field of fire-brewing tea technology, specifically relating to a hot air structure and a fire-brewing tea device. Background Technology

[0002] In existing stove-style tea-making devices, a hot air structure is installed on the underside of the table to meet the additional heating needs. Since both the air inlet and outlet need to be installed on the hot air mounting box, the outlets can only be installed on two sides, resulting in uneven air distribution. Moreover, the airflow from the inlet and outlet can interfere with each other, leading to insufficient air delivery distance. Some devices install multiple hot air structures on multiple table legs. However, the arrangement of multiple table legs can cause the hot air structure to be too close to the user. In this case, the outlets need to be set to face inward, which will result in insufficient air delivery distance. Furthermore, if the table legs are too small, the air duct will be too small, and insufficient air volume will also lead to insufficient air delivery distance. Utility Model Content

[0003] The purpose of this utility model is to disclose a hot air structure and a stove-style tea-brewing device, which achieves a hot air effect with air intake at the top and circumferential air outlet at the bottom, with a long hot air delivery distance and good heating effect.

[0004] To achieve the above objectives, this utility model discloses a hot air structure, comprising:

[0005] The base includes an upper air duct, a lower air duct, and a heat insulation cover. The upper air duct and the lower air duct are arranged vertically at intervals. An air inlet is provided in the middle of the upper end of the upper air duct. The heat insulation cover is fitted on the outside of the upper air duct and the lower air duct. An air outlet grid is provided on the circumferential side wall of the heat insulation cover so that the upper air duct, the lower air duct, and the heat insulation cover form an air duct with air intake at the center at the top and air outlet in the circumferential direction.

[0006] A fan is connected to the downwind duct, and the fan's impeller is located inside the duct and is arranged corresponding to the air inlet.

[0007] The heating element is located inside the air duct and is arranged around the outside of the fan.

[0008] As an optional implementation, the upper air duct includes a first annular outer plate and an intermediate sleeve. The lower end of the intermediate sleeve is connected to the inner ring side of the first annular outer plate, and the upper end of the intermediate sleeve is provided with an air inlet. The lower air duct includes a second annular outer plate and an inner platform. The inner platform is a frustum-shaped structure that is narrower at the top and wider at the bottom. The lower end of the inner platform is connected to the inner ring side of the second annular outer plate, and the upper end of the inner platform protrudes towards the air inlet, so that the sidewall of the inner platform is arranged at an angle. The motor of the fan is located in the inner platform, the impeller of the fan is at least partially located in the intermediate sleeve, and the heating element is located between the first annular outer plate and the second annular outer plate.

[0009] As an alternative implementation, the first annular outer plate and the intermediate sleeve are integrally formed.

[0010] As an alternative implementation, the corner between the first annular outer plate and the intermediate sleeve is rounded.

[0011] As an optional implementation, the upper air duct component also includes several reinforcing ribs, which are connected at the corner between the first annular outer plate and the intermediate sleeve, and the reinforcing ribs are located outside the air duct.

[0012] As an alternative implementation, the second annular outer plate and the inner platform are integrally formed.

[0013] As an optional implementation, the inner platform is provided with a downward-opening mounting slot, and the top of the inner platform is provided with a through hole for guiding the mounting slot. The motor is inserted into the mounting slot from bottom to top, and the motor shaft passes through the through hole to connect with the impeller.

[0014] As an optional implementation, the base also includes a bottom cover, which is connected to the lower air duct component. The fan motor is located in the hollow space between the bottom cover and the lower air duct component. The bottom cover is provided with heat dissipation holes, which correspond to the positions of the motor.

[0015] As an optional implementation, it also includes several brackets, which are connected to the heating element and are also connected to the upper air duct component, and the brackets suspend the heating element in the air duct.

[0016] Based on the same inventive concept, this utility model also discloses a stove-style tea brewing device, including the above-mentioned hot air structure, upper body and air guide hood that runs through the upper and lower parts. The upper body is connected to the top of the heat insulation cover. A power board and an air inlet that conducts air through the cavity of the upper body are provided in the cavity. The air guide hood is located in the cavity of the upper body and its lower end covers the air inlet of the upper air duct. The power board is located in the upper area of ​​the air guide hood.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model's hot air structure utilizes an upper air duct, a lower air duct, and a heat insulation cover to form an air duct with central air intake at the top and circumferential air exhaust. A fan wheel is positioned in the middle, surrounding the heating elements. The fan wheel accelerates the air intake, and after being heated by the surrounding heating elements, the air is then circumferentially exhausted to the outside of the base through the exhaust grille of the heat insulation cover, thereby increasing the ambient air temperature. The air delivery distance is long and uniform, and the heating effect is excellent. Furthermore, in the stove-like tea-brewing device, the incoming cold air can also be used to dissipate heat from the power board, improving energy utilization efficiency, and eliminating the need for an additional heat dissipation structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional structural schematic diagram of the stove-warming tea-brewing device according to an embodiment of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the hot air structure according to an embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional view of the hot air structure according to an embodiment of the present invention.

[0023] Figure 4 This is an exploded structural diagram of the hot air structure according to an embodiment of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the connection between the heating element and the upper air duct in an embodiment of this utility model.

[0025] Figure 6 This is a three-dimensional structural diagram of the upwind component according to an embodiment of the present utility model.

[0026] Figure 7 This is a three-dimensional structural diagram of the downwind duct component according to an embodiment of the present utility model.

[0027] Explanation of key figure labels:

[0028] 1. Base; 11. Upper air duct component; 111. First annular outer plate; 112. Intermediate sleeve; 113. Air inlet; 114. Reinforcing rib; 115. Stud; 12. Lower air duct component; 121. Second annular outer plate; 122. Inner platform; 1221. Mounting slot; 1222. Through hole; 23. Support leg; 124. Cable tray; 13. Heat insulation cover; 131. Air outlet grille; 14. Air duct; 15. Bottom cover; 151. Heat dissipation hole; 2. Fan; 21. Motor; 22. Impeller; 3. Heating element; 4. Bracket; 5. Upper body; 51. Original air outlet; 6. Air guide cover; 7. Power board. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0031] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0033] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0034] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0035] Please see Figure 2 and Figure 4As shown, this application embodiment provides a hot air structure, including: a base 1, a fan 2, and a heating element 3. The base 1 is generally cylindrical and used to support the ground. The base 1 includes an upper air duct 11, a lower air duct 12, a heat insulation cover 13, and a bottom cover 15. The bottom cover 15 is connected to the lower air duct 12 by screws or buckles, etc., and supports the lower air duct 12. The upper air duct 11 and the lower air duct 12 are arranged vertically at intervals. The heat insulation cover 13 is sleeved on the outside of the upper air duct 11 and the lower air duct 12. Specifically, the heat insulation cover 13... It can be connected or snapped to the bottom cover 15 with screws, so that the bottom cover 15 supports the heat insulation cover 13. The lower air duct 12 can also be supported by the heat insulation cover 13. The upper air duct 11 is connected to the heat insulation cover 13 by screws or clips, so that the upper air duct 11 is suspended above the lower air duct 12 by the fastening effect of the heat insulation cover 13. The upper air duct 11 has an air inlet 113 in the middle of its upper end. The circumferential sidewall of the heat insulation cover 13 is provided with An air outlet grille 131 is provided so that the upper air duct 11, the lower air duct 12, and the heat insulation cover 13 form an air duct 14 with air intake at the upper center and air outlet in the circumference. The fan 2 is connected to the lower air duct 12. The fan 2 includes a motor 21 and a fan wheel 22. The fan wheel 22 is fixed to the shaft of the motor 21. The motor 21 can be located below the lower air duct 12. The fan wheel 22 is located in the air duct 14 and is arranged corresponding to the air inlet 113. Based on the setting of the bottom cover 15, preferably, the motor 21 is located in the hollow space between the bottom cover 15 and the lower air duct 12. The bottom cover 15 is provided with heat dissipation holes 151, which correspond to the position of the motor 21. In this way, the bottom cover 15 has a supporting function and a protective function for the motor 21. The heat dissipation holes 151 can also dissipate heat from the motor 21. The heating element 3 is set in the air duct 14 and is arranged around the outside of the fan 2. When in use, the fan 2 and the heating element 3 work, the motor 21 drives the impeller 22 to rotate, the impeller 22 accelerates the air in the air inlet 113, so that the air flows from the center to the periphery. After being heated by the surrounding heating element, the air is discharged circumferentially to the outside of the base 1 through the air outlet grille 131 of the heat insulation cover 13, thereby achieving the purpose of increasing the temperature of the surrounding air.

[0036] In the above solution, the upper air duct 11, the lower air duct 12 and the heat insulation cover 13 are used to form the air duct 14, which is conducive to the convenient installation of the fan 2 and the heating element 3 in the air duct 14. In addition, the air supply method of the upper central air intake and circumferential air outlet is realized in the base 1. The air volume of the air duct 14 can be large, the air supply distance is long, and the air supply is uniform without dead corners, resulting in good heat effect and improving user experience.

[0037] See Figure 3 , Figure 5 and Figure 6In this embodiment, as a preferred embodiment of the upper air duct 11: the upper air duct 11 is generally shaped like a round cap, and includes a first annular outer plate 111 and an intermediate sleeve 112. The lower end of the intermediate sleeve 112 is connected to the inner ring side of the first annular outer plate 111, and the upper end of the intermediate sleeve 112 is provided with an air inlet 113. The intermediate sleeve 112 can be used to accommodate the impeller 22. The first annular outer plate 111 is used to connect with the heat insulation cover 13. Specifically, a plurality of studs 115 are arranged circumferentially on the upper surface of the first annular outer plate 111, and screws pass through the studs 115 and connect with the heat insulation cover 13. The upper air duct component 11 is then fixed in the heat insulation cover 13. Preferably, the first annular outer plate 111 and the intermediate sleeve 112 are integrally formed to improve the overall strength of the upper air duct component 11. Furthermore, the corner between the first annular outer plate 111 and the intermediate sleeve 112 is rounded to facilitate airflow. A number of reinforcing ribs 114 can also be arranged circumferentially at intervals at the corner between the first annular outer plate 111 and the intermediate sleeve 112. The reinforcing ribs 114 are located outside the air duct 14. The reinforcing ribs 114 can further improve the overall strength of the upper air duct component 11 without obstructing the airflow in the air duct 14.

[0038] See Figure 3 and Figure 7 In this embodiment, as a preferred embodiment of the downwind duct 12: the downwind duct 12 includes a second annular outer plate 121 and an inner platform 122. The inner platform 122 is a frustum-shaped structure that is narrower at the top and wider at the bottom. The lower end of the inner platform 122 is connected to the inner ring side of the second annular outer plate 121, and the upper end of the inner platform 122 protrudes towards the air inlet 113, so that the sidewall of the inner platform 122 is arranged at an inclination. Preferably, the second annular outer plate 121 and the inner platform 122 are integrally formed to improve the overall strength of the downwind duct 12. The outer ring side of the second annular outer plate 121 may also be provided with a cable tray 124 and several legs. 23. The cable tray 124 extends upward, while the support leg 23 extends downward. The cable tray 124 can abut against the upper air duct 11 to isolate a space that is not directly blown by hot air. This space can be used for cable routing. The support leg 23 is used to abut against the bottom cover 15. One function of the support leg 23 is to form a hollow space between the lower air duct 12 and the bottom cover 15 for heat insulation. Another function of the support leg 23 is that screws can pass through the support leg 23 and be screwed to the bottom cover 15 for fixation. Preferably, the inner platform 122 is provided with a downward-opening mounting groove 1221, and the top of the inner platform 122 is provided with a through hole 1222 that guides the mounting groove 1221.

[0039] Based on the aforementioned upwind component 11 and downwind component 12, see [reference] Figure 3The first annular outer plate 111 and the second annular outer plate 121 are positioned correspondingly, and the middle sleeve 112 is positioned correspondingly to the inner platform 122, thereby forming an air duct 14 that gradually diffuses air downwards from the upper center. The circular transition between the first annular outer plate 111 and the middle sleeve 112, and the inclined sidewall of the inner platform 122, make the vertical and horizontal sections of the air duct 14 transition smoothly, which is conducive to improving airflow and reducing energy loss. The motor 21 is located in the inner platform 122. Specifically, the motor 21 is inserted into the mounting groove 1221 from bottom to top, and the shaft of the motor 21 passes through the through hole 1222 and connects to the impeller 22. The mounting groove 1221 is used to restrict the motor 21 to avoid excessive vibration. The impeller 22 is at least partially located in the middle sleeve 112, and the heating element 3 is located between the first annular outer plate 111 and the second annular outer plate 121.

[0040] See Figure 5 Based on the aforementioned upper air duct 11, in order to realize the installation of the heating element 3, preferably, it also includes several brackets 4. The brackets 4 are connected to the heating element 3, and the brackets 4 are also connected to the upper air duct 11. Specifically, a positioning groove can be set on the lower surface of the first annular outer plate 111, and the brackets 4 are partially embedded in the positioning groove and fixed by screws or buckles, which can limit the movement of the brackets 4. The brackets 4 are used to suspend the heating element 3 in the air duct 14, so that the air in the air duct 14 can more fully carry away the heat of the heating element 3.

[0041] Understandably, in other preferred examples, the heating element 3 can also be fixed to the downdraft duct 12, such as the lower end of the bracket 4 being connected to the downdraft duct 12, while the upper end of the bracket 4 is fixed to the heating element 3, which can also suspend the heating element 3.

[0042] Combination Figure 1 This utility model also discloses a stove-style tea-brewing device, including the aforementioned hot air structure, an upper body 5, and a vertically penetrating air guide hood 6. The upper body 5 may be equipped with an atomizing structure and a stove heating structure to satisfy functions such as tea brewing or hot pot making, as well as humidification and dehumidification. The upper body 5 is connected above the heat insulation cover 13. A power board 7 and a primary air vent 51 connecting the upper body 5 are located within the cavity of the upper body 5. The air guide hood 6 is located within the cavity of the upper body 5, with its lower end covering the air inlet 113 of the upper air duct 11. The power board 7 is located in the upper region of the air guide hood 6. In use, cold air enters the cavity of the upper body 5 from the primary air vent 51, passes through the power board 7, enters the air guide hood 6, and then enters the air duct 14 of the base 1. After being heated, the air exits from the base 1 in all directions. Thus, the incoming cold air can be used to dissipate heat from the power board 7, improving energy utilization, and eliminating the need for an additional heat dissipation structure.

[0043] In addition, by adjusting the position of the original air vent 51, the flow path of the cold air can also pass through the furnace heating structure, thereby dissipating heat from the furnace heating structure.

[0044] It should be noted that the atomizing structure and the furnace heating structure are not the inventive points of this utility model. Therefore, any atomizing structure or furnace heating structure can be used, and will not be described in detail here; or, depending on the application requirements, the atomizing structure may not be provided.

[0045] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A hot air structure applied to a stove-style tea brewing device, characterized in that, include: The base (1) includes an upper air duct (11), a lower air duct (12), and a heat insulation cover (13). The upper air duct (11) and the lower air duct (12) are arranged vertically at intervals. An air inlet (113) is provided at the middle of the upper end of the upper air duct (11). The heat insulation cover (13) is fitted on the outside of the upper air duct (11) and the lower air duct (12). An air outlet grid (131) is provided on the circumferential side wall of the heat insulation cover (13) so that the upper air duct (11), the lower air duct (12), and the heat insulation cover (13) form an air duct (14) with air intake at the center at the top and air outlet in the circumferential direction. A fan (2) is connected to the downwind duct (12), and the impeller (22) of the fan (2) is located in the duct (14) and is arranged corresponding to the air inlet (113); A heating element (3) is disposed in the air duct (14) and the heating element (3) is arranged around the outside of the fan (2).

2. The hot air structure according to claim 1, characterized in that, The upwind duct (11) includes a first annular outer plate (111) and an intermediate sleeve (112). The lower end of the intermediate sleeve (112) is connected to the inner ring side of the first annular outer plate (111). The upper end of the intermediate sleeve (112) is provided with the air inlet (113). The downwind duct (12) includes a second annular outer plate (121) and an inner platform (122). The inner platform (122) is a frustum shape that is narrower at the top and wider at the bottom. The lower end of the inner platform (122) is connected to the inner ring side of the first annular outer plate (111). The inner ring side of the two annular outer plates (121) is connected, and the upper end of the inner platform (122) protrudes towards the air inlet (113), so that the side wall of the inner platform (122) is arranged at an angle; the motor (21) of the fan (2) is located in the inner platform (122), the impeller (22) of the fan (2) is at least partially located in the intermediate sleeve (112), and the heating element (3) is located between the first annular outer plate (111) and the second annular outer plate (121).

3. The hot air structure according to claim 2, characterized in that, The first annular outer plate (111) and the intermediate sleeve (112) are integrally formed.

4. The hot air structure according to claim 3, characterized in that, The corner between the first annular outer plate (111) and the intermediate sleeve (112) is rounded.

5. The hot air structure according to claim 2, characterized in that, The upper air duct component (11) also includes several reinforcing ribs (114), which are connected at the corner between the first annular outer plate (111) and the intermediate sleeve (112), and the reinforcing ribs (114) are located outside the air duct (14).

6. The hot air structure according to claim 2, characterized in that, The second annular outer plate (121) and the inner platform (122) are integrally formed.

7. The hot air structure according to claim 6, characterized in that, The inner platform (122) is provided with a downward-opening mounting groove (1221). The top of the inner platform (122) is provided with a through hole (1222) that guides the mounting groove (1221). The motor (21) is inserted into the mounting groove (1221) from bottom to top, and the shaft of the motor (21) passes through the through hole (1222) and connects to the impeller (22).

8. The hot air structure according to any one of claims 1-7, characterized in that, The base (1) also includes a bottom cover (15), which is connected to the bottom of the downdraft duct (12). The motor (21) of the fan (2) is located in the hollow space between the bottom cover (15) and the downdraft duct (12). The bottom cover (15) is provided with heat dissipation holes (151), which correspond to the position of the motor (21).

9. The hot air structure according to any one of claims 1-7, characterized in that, It also includes several brackets (4), which are connected to the heating element (3) and are also connected to the upper air duct (11). The brackets (4) suspend the heating element (3) in the air duct (14).

10. A stove-style tea-brewing device, characterized in that, Includes a hot air structure as described in any one of claims 1-9, an upper body (5) and a vertically penetrating air guide hood (6), wherein the upper body (5) is connected above the heat insulation cover (13), a power supply board (7) and a primary air inlet (51) that connects to the cavity of the upper body (5) are provided therein, the air guide hood (6) is located in the cavity of the upper body (5) and its lower end covers the air inlet (113) of the upper air duct (11), and the power supply board (7) is located in the upper region of the air guide hood (6).

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