Air curtain device and cooking equipment

Abstract

The application discloses a wind curtain device and a cooking equipment. Specifically, the wind curtain device comprises a shell and a fan assembly. The shell is formed with an air duct, and the shell is provided with an air inlet and an air outlet which are communicated with the air duct. In the installed state, the air inlet is located at the top end of the shell and is arranged on the side of the stove close to the wall. The fan assembly is arranged in the air duct and is used for sucking air from the air inlet through the air duct to form a downward air flow above the air inlet, so that the flue gas generated by the stove is inclined to the side close to the wall. The wind curtain device of the application makes the entire flue gas flow backward, and the upward component velocity of the flue gas also increases slowly, so that the flue gas in the front side is reduced.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to an air curtain device and cooking equipment. Background Technology

[0002] Consumers have increasingly higher demands for the performance of kitchen air purification equipment, and strong suction power has become the goal pursued by major manufacturers. However, the range hoods currently on the market still cannot solve problems such as incomplete suction and overflow of oil fumes. During the cooking process, a small amount of fumes will always escape from the front of the machine and directly invade the cook's clothes, hair and face. This will not only damage the facial skin, but if inhaled for a long time, it will also induce respiratory diseases and directly affect the user's health.

[0003] Therefore, in order to solve the problem of oil fume escape, existing range hoods are mostly equipped with air curtain devices to isolate users from the escaped oil fumes when in use.

[0004] However, the air curtain devices in existing technologies have a large effective range, which can affect the working efficiency of the range hood. Moreover, users' hands and arms often move near the stove or pot opening, and a large portion of the air curtain's flow will inevitably blow onto the user's hands and arms, causing discomfort. Summary of the Invention

[0005] In view of the problems existing in the background art, the purpose of this application is to provide an air curtain device and cooking equipment to solve the technical problem that the air curtain device in the prior art has a large range of action, which will affect the working effect of the range hood and cause discomfort to the user.

[0006] To solve the aforementioned technical problems, the first technical solution adopted in this application is: to provide an air curtain device applied to a stove. Specifically, the air curtain device includes a housing and a fan assembly. The housing forms an air duct and has an air inlet and an air outlet communicating with the air duct. In the installed state, the air inlet is located at the top of the housing and is configured to be located on the side of the stove closer to the wall. The fan assembly is disposed within the air duct and is used to draw air from the air inlet through the air duct to form a downward airflow above the air inlet, causing the smoke generated by the stove to tilt towards the side closer to the wall.

[0007] Furthermore, the housing includes: a first housing and a second housing, the first housing having a receiving cavity, the air duct including the receiving cavity, the fan assembly disposed in the receiving cavity, and the air outlet disposed in the first housing; the second housing being disposed at the top of the first housing, and the air inlet being disposed in the second housing.

[0008] Furthermore, in the installed state, the second housing is located at the end of the first housing near the wall, and the air outlet is located on the side of the first housing away from the wall, opposite to the air inlet.

[0009] Furthermore, the length of the first shell is greater than or equal to the length of the second shell, and the width of the first shell is greater than the width of the second shell. The length directions of the first and second shells are parallel to the wall, and the width directions of the first and second shells are perpendicular to the wall.

[0010] Furthermore, the airflow of the fan assembly is positively correlated with the firepower level of the stove.

[0011] Furthermore, when installed, the air curtain device is symmetrically positioned relative to the center line of the stove.

[0012] Furthermore, when the air curtain device is installed, the distance between the air curtain device and the wall is L, where L is in the range of 20mm≤L≤100mm.

[0013] Furthermore, when the air curtain device is installed, the length of the casing is greater than the distance between the inner sides of the two pots on the stove, but less than the distance between the outer sides of the two pots.

[0014] To solve the above-mentioned technical problems, the second technical solution adopted in this application is: to provide a cooking device, which includes: a stove and an air curtain device of any of the above embodiments, wherein the stove is installed on the stove platform; and the air curtain device is located on the side of the stove near the wall.

[0015] Furthermore, the air curtain device is located on the side of the stove away from the stove, and the air inlet is connected to the space where the stove is located.

[0016] Beneficial Effects: Unlike existing technologies, the air curtain device provided in this application is applied to a stove. The air curtain device includes a housing and a fan assembly. The housing forms an air duct and has an air inlet and an air outlet communicating with the air duct. In the installed state, the air inlet is located at the top of the housing and is configured to be located on the side of the stove closest to the wall. The fan assembly is located inside the air duct and is used to draw air from the air inlet through the air duct to form a downward airflow above the air inlet, causing the smoke generated by the stove to tilt towards the side closest to the wall. The air curtain device of this application is installed on the stovetop, which is far from the range hood, thus having little impact on the range hood. The air curtain device creates a downward airflow near the wall, which is supplemented by the airflow from the front. When smoke is generated, it is subjected to the downward and backward suction force of the air curtain device, and the entire smoke flows backward. Its upward velocity also increases more slowly, resulting in the phenomenon that the entire smoke flows to the rear and the middle side of the air curtain device. Therefore, it can reduce the escape of smoke in the front section, reduce the impact of oil fumes on the people in front, and because there is a high-speed airflow on the wall side, although the oil fumes move backward, they will not come into direct contact with the wall surface, thus playing a protective role for the wall surface. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of an air curtain device provided in this application;

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of a cooking device provided in this application;

[0020] Figure 3 yes Figure 2 A top view of the cooktop structure in the cooking equipment shown.

[0021] Figure descriptions: 10. Air curtain device; 11. Housing; 101. Air inlet; 102. Air outlet; 12. Fan assembly; 111. First housing; 112. Second housing; 20. Cooking equipment; 21. Range hood; 22. Stove; 30. Cookware; 40. Wall. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In the description of this application, it is necessary to specify that, unless otherwise expressly stated and limited, the terms "installation," "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms within the context of this application.

[0025] In the description of this application, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] A range hood is a kitchen appliance used to purify the kitchen environment. It's typically installed above the stovetop, with a certain distance between them, usually around 750mm. However, because range hoods passively extract cooking fumes, they are susceptible to crosswinds as the fumes rise, causing them to easily escape. Adding an air curtain device to the range hood helps prevent these fumes from easily escaping into the kitchen space, ensuring they are effectively drawn away by the hood.

[0028] This application first provides an air curtain device, which is installed on the rear side of the stove (the side closest to the wall). The air curtain device generates a downward airflow through its air inlet, drawing the smoke from the front towards the rear, reducing the amount of smoke at the front, and reducing the time the smoke stays in the room, preventing smoke from escaping from the front and harming people. It can also form an airflow wall at the rear, preventing wall pollution. The air curtain device provided in this application will be described in detail below.

[0029] Please see Figure 1 As shown, Figure 1 This is a schematic diagram of an embodiment of an air curtain device provided in this application. Specifically, the air curtain device 10 includes: a housing 11 and a fan assembly 12 located inside the housing 11.

[0030] The shell 11 has an air duct (not shown in the figure), such as Figure 1As shown, the housing 11 has an air inlet 101 and an air outlet 102 communicating with the air duct. When the air curtain device 10 is installed, the air inlet 101 is located at the top of the housing 11. See also... Figure 2 As shown, when the air curtain device 10 is installed, the air inlet 101 is configured to be located on the side of the stove 22 near the wall 40.

[0031] like Figure 1 As shown, the fan assembly 12 is located within the air duct. The fan assembly 12 draws air from the air inlet 101 through the air duct, causing the airflow on the wall 40 side to begin flowing downwards, giving the airflow an initial downward velocity, and supplemented by airflow from the front. When smoke is generated, it is subjected to the downward and backward suction force provided by the air curtain device 10, causing the entire smoke to flow backwards, and the upward velocity of the smoke increases more slowly, resulting in the phenomenon of the entire smoke flowing backwards towards the middle of the air curtain device 10. A downward airflow is formed behind the stove 22, thus creating a negative pressure zone behind the stove 22, causing the smoke generated by the stove 22 to tilt towards the wall 40 (e.g., ...). Figure 2 (As shown).

[0032] In the above embodiments, such as Figure 2 As shown, the air curtain device 10 can be installed inside the cabinet of the stove, between the stove 22 and the wall 40. The air inlet 101 of the air curtain device 10 is located on the side of the stove 22 closest to the wall 40. Under the action of the fan assembly 12, air is drawn in at the air inlet 101, forming a downward airflow above the air inlet 101, which is positioned close to the wall 40. In this way, the entire flue gas will flow backward, and the upward velocity of the flue gas will also increase more slowly, resulting in the phenomenon that the entire flue gas flows backward towards the middle side of the air curtain device 10, reducing the amount of flue gas that easily escapes from the front section, reducing the amount of flue gas inhaled by people in the front, and because there is airflow on the side of the wall 40, although the fumes move backward, they will not directly contact the wall 40, thus protecting the wall 40.

[0033] Optionally, the fan assembly 12 can be a cross-flow fan assembly to ensure uniform airflow from the air outlet 102. Optionally, the fan assembly 12 can also be a centrifugal fan, etc.

[0034] Optionally, an oil fume adsorption device can be installed at the air inlet 101 and / or the air outlet 102 to adsorb oil fumes. In this way, the amount of oil fumes entering the housing 11 can be reduced, thus avoiding contamination of the fan assembly 12 inside the housing 11.

[0035] Furthermore, such as Figure 1As shown, the housing 11 may include a first housing 111 and a second housing 112. The first housing 111 forms a receiving cavity (not shown in the figure), which is part of the air duct of the air curtain device 10. The fan assembly 12 is disposed in the receiving cavity, and the air outlet 102 is disposed on the first housing 111. The first housing 111 can be rectangular in shape, so that when the housing 11 is placed inside the cabinet, it can be in close contact with the inner wall of the cabinet. It is understood that the shape of the first housing 111 can also be cylindrical, etc., and the specific design can be selected and set according to the needs.

[0036] The second housing 112 is located at the top of the first housing 111. The second housing 112 has an air inlet 101 located above the first housing 111 to draw air from the space where the stove 22 is located. When the air curtain device 10 is installed, the first housing 111 can be located inside the cabinet, and the second housing 112 can be embedded in the opening of the stove surface so that the air inlet 101 on the second housing 112 is connected to the space where the stove 22 is located.

[0037] Furthermore, the length of the first housing 111 is greater than or equal to the length of the second housing 112, and the width of the first housing 111 is greater than the width of the second housing 112. The length directions of the first housing 111 and the second housing 112 are parallel to the wall, and the width directions of the first housing 111 and the second housing 112 are perpendicular to the wall. This arrangement allows the second housing 112 to match the opening on the stovetop, facilitating the installation of the air curtain device 10.

[0038] In the installed state, the second housing 112 is located at the end of the first housing 111 near the wall 40, and the air outlet 102 is located on the side of the first housing 111 away from the wall 40, opposite to the air inlet 101. The air outlet 102 is located at the bottom of the first housing 111, and the air inlet 101 is located above the second housing 112. In the installed state, the air outlet 102 faces upward and the air inlet 101 faces downward. This arrangement allows for a larger distance between the air outlet 102 and the air inlet 101, reducing interference between them.

[0039] exist Figure 1 In the illustrated embodiment, a grille structure is provided at the air inlet 101 to allow for more uniform air intake. In other embodiments, the grille structure may not be provided at the air inlet 101, thus simplifying the structure of the air curtain device 10 and reducing its weight.

[0040] The air curtain device 10 draws air from the air inlet 101 to form a downward airflow above the air inlet 101, thereby creating a low negative pressure zone. The smoke rising from the pot on the stove 22 will flow to the rear due to the pressure difference, preventing smoke from escaping from the front section and reducing the amount of smoke inhaled by people at the front. Furthermore, because there is a high-speed airflow on the wall 40 side, although the fumes move backward, they will not directly contact the wall 40, thus protecting the wall 40.

[0041] When the stove 22 is turned on, the airflow of the fan assembly 12 is directly proportional to the firepower level of the stove 22. When the stove 22 is turned on, it also activates the air curtain device 10. The airflow of the air curtain device 10 is related to the firepower level of the stove 22. When the firepower of the stove 22 is at a low setting, less smoke is produced, the fan assembly 12 runs at a low speed, and the airflow velocity on the wall side is low, resulting in a weak effect on dragging away the smoke. When the firepower of the stove 22 is at a high setting, more smoke is produced, the fan assembly 12 runs at a high speed, the airflow velocity is increased, and the dragging effect is enhanced.

[0042] like Figure 3 As shown, the air curtain device 10, in its installed state, is positioned between the cookware 30 and the wall 40. The air curtain device 10 can be symmetrically positioned relative to the centerline of the stove 22 to ensure more even force distribution across the cooking areas of the two stoves 22. Taking a 320mm diameter pot as an example, after the two pots are placed normally, the closest distance between the two pots 30 is L1, and the farthest distance is L3. The length of the air inlet 101 of the air curtain device 10 is L2, preferably L1≤L2≤L3. This arrangement allows the air curtain device 10 to cover the smoke-generating areas on both sides without causing smoke to escape from the sides due to an excessively long air inlet 101. In its installed state, the distance between the air curtain device 10 and the wall 40 is L, where L ranges from 20mm≤L≤100mm. This method protects the wall 40 without reducing the dragging effect of the air curtain device 10 on the oil fumes.

[0043] In summary, the air curtain device 10 provided in this application has a simple structure. It can be installed entirely within a cabinet without occupying space on the countertop or in the range hood 21. The air curtain device 10 generates a downward airflow behind the stove 22, driving the airflow to the rear and reducing smoke escape from the front, thus minimizing harm to the human body. Furthermore, the air curtain device 10 forms an air wall on the side of the wall 40, protecting the wall 40 from oil fume pollution.

[0044] This application also provides a cooking device; please refer to [link / reference]. Figure 2 As shown, Figure 2 This is a schematic diagram of an embodiment of a cooking device provided in this application. Specifically, the cooking device 20 may include: a stove 22, a range hood 21, and an air curtain device 10.

[0045] The stove 22 is installed on the stove platform, the range hood 21 is installed above the stove platform, and the air curtain device 10 is located on the side of the stove 22 closest to the wall 40.

[0046] Furthermore, the air curtain device 10 can be installed on the side of the stove away from the cooktop 22, that is, the air curtain device 10 is installed at the bottom of the stove, and the air inlet 101 of the air curtain device 10 is connected to the space where the cooktop 22 is located. In this way, the air curtain device 10 will not temporarily occupy the space of the stove surface, and the distance from the range hood 21 is relatively far, so it has little impact on the smoke extraction performance of the range hood 21.

[0047] In the cooking equipment 20 of this application, the airflow generated by the air curtain device 10 flows downward at high speed along the wall 40, forming a low negative pressure zone. This causes the entire flue gas to flow backward, and the upward velocity of the flue gas increases more slowly. This results in the flue gas flowing backward towards the middle of the air curtain device 10, preventing flue gas from escaping from the front and reducing the amount of flue gas inhaled by people in the front. Furthermore, because of the high-speed airflow on the wall 40, although the fumes move backward, they do not directly contact the wall 40, thus protecting the wall 40.

[0048] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments are included within the scope of protection of this technical solution.

Claims

1. An air curtain device, characterized in that, The air curtain device, applied to cooktops, includes: The housing has an air duct, and the housing is provided with an air inlet and an air outlet communicating with the air duct. When the air curtain device is installed, the air inlet is located at the top of the housing and is configured to be located on the side of the stove close to the wall. A fan assembly is disposed within the air duct. The fan assembly is used to draw air from the air inlet through the air duct to form a downward airflow above the air inlet, causing the smoke generated by the stove to tilt towards the side closer to the wall.

2. The air curtain device according to claim 1, characterized in that, The housing includes: A first housing having the accommodating cavity, an air duct including the accommodating cavity, a fan assembly disposed in the accommodating cavity, and an air outlet disposed in the first housing; The second housing is located at the top of the first housing, and the air inlet is located in the second housing.

3. The air curtain device according to claim 2, characterized in that, In the installed state, the second housing of the air curtain device is located at the end of the first housing near the wall, and the air outlet is located on the side of the first housing away from the wall, opposite to the air inlet.

4. The air curtain device according to claim 2, characterized in that, The length of the first housing is greater than or equal to the length of the second housing, and the width of the first housing is greater than the width of the second housing. The length directions of the first housing and the second housing are parallel to the wall, and the width directions of the first housing and the second housing are perpendicular to the wall.

5. The air curtain device according to claim 1, characterized in that, The airflow of the fan assembly is positively correlated with the firepower level of the stove.

6. The air curtain device according to claim 1, characterized in that, In the installed state, the air curtain device is symmetrically arranged with respect to the center line of the stove.

7. The air curtain device according to claim 1, characterized in that, In the installed state, the distance between the air curtain device and the wall is L, where L is in the range of 20mm≤L≤100mm.

8. The air curtain device according to claim 1, characterized in that, In the installed state, the length of the air curtain device is greater than the distance between the inner sides of the two pots on the stove, and less than the distance between the outer sides of the two pots.

9. A cooking device, characterized in that, The cooking equipment includes: The stove is installed on the stove platform; The air curtain device according to any one of claims 1-8 is disposed on the side of the stove near the wall.

10. The cooking apparatus according to claim 9, characterized in that, The air curtain device is located on the side of the stove away from the stove, and the air inlet is connected to the space where the stove is located.

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