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 outlet 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 blowing air to the air outlet through the air duct to form upward air flow above the air outlet, so that the flue gas generated by the stove is inclined to the direction close to the wall. The wind curtain device provided by the application can reduce the front side smoke running and the smoke inhalation amount of the human body on the front side. Moreover, due to the existence of the high-speed airflow on the wall side, the oil fume moves backward, but does not directly contact the wall, so that the wall can be protected.

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] As people's living standards continue to improve and they pursue a higher quality of life, they also place higher demands on the kitchen environment. One of the biggest environmental problems in the kitchen is the oil fumes produced during cooking. If not handled properly, the fumes can spread throughout the kitchen, even affecting the living environment.

[0003] Current range hoods have a relatively low exhaust efficiency, and with shared ventilation ducts in apartment buildings, over 50% of kitchen fumes are not easily expelled. During cooking, with movement and air circulation, a large amount of fumes remain in the kitchen and spread. Researchers have devised various solutions to improve exhaust efficiency, such as increasing the range hood's smoke-collecting area and increasing fan speed to boost airflow. However, these solutions undoubtedly increase the space burden on users and cause problems like high noise and high energy consumption. Therefore, some range hoods now utilize air curtain devices to prevent fume diffusion. These devices create an air curtain around the smoke collection chamber or at the front, preventing fumes from escaping and improving the range hood's smoke extraction efficiency.

[0004] Existing air curtain devices can easily affect the normal operation of range hoods, as the airflow at the air outlet of the air curtain device can affect the range hood's collection of fumes. 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 airflow of the air outlet of the air curtain device can easily affect the range hood's collection of smoke.

[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, the air curtain device comprising: a housing and a fan assembly. The housing forms an air duct, and the housing is provided with an air inlet and an air outlet communicating with the air duct. In the installed state, the air outlet is located at the top of the housing and configured to be positioned on the side of the stove closer to the wall. The fan assembly is disposed within the air duct and is used to blow air through the air duct towards the air outlet, thereby creating an upward airflow above the air outlet, causing the smoke generated by the stove to tilt towards the wall.

[0007] Furthermore, the housing includes: a first housing and a second housing. The first housing forms a receiving cavity, the air duct includes the receiving cavity, the fan assembly is disposed in the receiving cavity, and the air inlet is disposed in the first housing; the second housing is disposed at the top of the first housing, and the air outlet is 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 inlet is located on the side of the first housing away from the wall, opposite to the air outlet.

[0009] Furthermore, a guide vane is provided on the side of the air outlet away from the wall to control the direction of the airflow blowing out of the air outlet; or, a guide vane is built into the air outlet to control the direction of the airflow blowing out of the air outlet.

[0010] Furthermore, the guide vane is movably connected to the second housing. The guide vane has a first state and a second state. In the first state, the guide vane covers the air outlet. In the second state, the opening angle of the guide vane is greater than or equal to 30° and less than or equal to 90° to open the air outlet. The opening angle of the guide vane is the angle between the guide vane and the plane where the air outlet is located.

[0011] Furthermore, the opening angle of the deflector is positively correlated with the firepower level 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 installed, the air curtain device is symmetrically positioned relative to the center line of the stove.

[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 outlet 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 cooktop. 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 duct. In the installed state, the air outlet is located at the top of the housing and positioned on the side of the cooktop closest to the wall. The fan assembly is located within the air duct and blows air through the duct towards the air outlet, creating an upward airflow above the outlet, causing the fumes generated by the cooktop to tilt towards the wall. The air curtain device provided in this application can be independently configured next to the cooktop, reducing the impact of the air curtain device on the fume collection of the range hood. The air curtain device creates an upward airflow above the air outlet. This upward airflow is positioned close to the wall. In this way, the airflow flows upward at high speed along the wall, creating a low negative pressure zone. The flue gas rising from the pot will flow to the rear due to the pressure difference, preventing the flue gas from escaping from the front section and reducing the amount of flue gas inhaled by people at the front. Furthermore, because of the high-speed airflow on the wall side, although the fumes move backward, they will not come into direct contact with the wall, thus providing wall protection. 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 This is a schematic diagram of another embodiment of an air curtain device provided in this application;

[0021] Figure 4 yes Figure 2 A top view of the cooktop structure in the cooking equipment shown.

[0022] Figure descriptions: 10. Air curtain device; 11. Housing; 101. Air inlet; 102. Air outlet; 12. Fan assembly; 111. First housing; 112. Second housing; 13. Guide vane; 100. Guide blade; 20. Cooking equipment; 21. Range hood; 22. Stove; 30. Cookware; 40. Wall. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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 an upward airflow through the air outlet to accelerate the rise of smoke from the rear of the cookware, forming a low negative pressure zone. This draws the smoke from the front towards the rear, reducing the amount of smoke at the front and the time the smoke stays in the room, preventing smoke from escaping from the front and harming the human body. Furthermore, it can form an airflow wall at the rear, preventing wall contamination. The air curtain device provided in this application will be described in detail below.

[0030] 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.

[0031] The shell 11 has an air duct (not shown in the figure), such as Figure 1 As 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 outlet 102 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 outlet 102 is configured to be located on the side of the stove 22 near the wall 40.

[0032] The fan assembly 12 is located inside the air duct. The fan assembly 12 is used to blow air through the air duct to the air outlet 102 to form an upward airflow above the air outlet 102, that is, to form an upward airflow behind the stove 22. In this way, a negative pressure zone can be formed behind the stove 22, so that the smoke generated by the stove 22 is tilted towards the wall 40.

[0033] In the above embodiments, such as Figure 2As 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 outlet 102 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 blown at the air outlet 102, forming an upward airflow above the air outlet 102. The upward airflow is set close to the wall 40. In this way, the airflow flows upward at high speed along the wall 40, forming a low negative pressure zone. The smoke rising from the pot will flow to the rear due to the pressure difference, preventing smoke from escaping from the front section, reducing the amount of smoke inhaled by people at the front. Furthermore, because there is a high-speed 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.

[0034] 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.

[0035] Furthermore, such as Figure 1 As 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 inlet 101 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, and the width of the second housing 112 is smaller than the width of the first housing 111. The second housing 112 has an air outlet 102, which is positioned above the first housing 111 to better guide the airflow from the duct to the air curtain device 10. During installation, the first housing 111 can be located inside the cabinet, and the second housing 112 can be embedded in the opening of the cooktop surface to deliver air upwards through the air outlet 102 of the second housing 112.

[0037] 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 inlet 101 is located on the side of the first housing 111 away from the wall 40, opposite to the air outlet 102. The air inlet 101 is located at the bottom of the first housing 111, and the air outlet 102 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.

[0038] In order to make the airflow more uniform, a grille structure is provided at the air outlet 102 in this application to guide the direction of the airflow.

[0039] Furthermore, such as Figure 1 As shown, a guide vane 13 is provided on the side of the air outlet 102 away from the wall 40. The guide vane 13 is used to control the direction of the airflow blown out of the air outlet 102.

[0040] In some embodiments, the guide vane 13 may be fixedly connected to the second housing 112.

[0041] In other embodiments, the guide vane 13 may also be movably connected to the second housing 112, that is, the guide vane 13 is rotatably disposed at the end of the second housing 112 away from the wall 40. Specifically, the guide vane 13 has a first state and a second state.

[0042] In the first state, the guide vane 13 covers the air outlet 102 to block the air outlet 102 and protect the air curtain device 10. When the air curtain device 10 is not in use, the guide vane 13 can be closed to facilitate cleaning of the stove surface and to prevent dust from falling into the air duct of the air curtain device 10.

[0043] In the second state, the opening angle of the guide vane 13 is greater than or equal to 30° and less than or equal to 90° to open the air outlet 102, wherein the opening angle of the guide vane 13 is the angle between the guide vane 13 and the plane containing the air outlet 102. During cooking, the guide vane 13 of the air curtain device 10 can be opened to allow the air curtain device 10 to blow upward airflow from the air outlet 102.

[0044] After the air is delivered from the air outlet 102, the air is guided along the guide vane 13 to a position close to the wall 40, and then flows upward at high speed along the wall 40 to form 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 in the front. In addition, because there is a high-speed airflow on the side of the wall 40, although the oil fumes move backward, they will not come into direct contact with the wall 40, thus protecting the wall 40.

[0045] Furthermore, the guide vane 13 may also be provided with an adjustment part (not shown), which can be used to adjust the angle of the guide vane 13. The airflow blown out from the air outlet 102, under the action of the guide vane 13, is directed vertically upward along the wall 40 to generate a vertically upward airflow in the area near the wall 40.

[0046] In other embodiments, such as Figure 3As shown, the guide vane 13 can be omitted, and instead, a guide vane 100 can be built into the air outlet 102. The guide vane 100 is used to control the direction of the airflow blowing out of the air outlet 102. By setting the built-in guide vane 100, the volume of the air curtain device 10 can be reduced, and the space occupied by the air curtain device 10 on the table can be reduced.

[0047] When the stove 22 is turned on, it simultaneously activates the air curtain device 10. The opening angle of the guide vane 13 is directly proportional to the firepower level of the stove 22. When the firepower of the stove 22 is at a low setting, the amount of oil fumes produced is small, the guide vane 13 only needs to open at a small angle, the fan assembly 12 runs at a low speed, and the low negative pressure zone on the wall 40 side is relatively thin. When the stove 22 is at a high firepower setting, the amount of oil fumes produced is large, the guide vane 13 opens at a large angle, the fan assembly 12 runs at a high speed, and the low negative pressure zone on the wall 40 side is relatively thick.

[0048] like Figure 4 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 zones 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 outlet 102 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 the air outlet 102 being too long. 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 causing smoke to be blown away due to excessively close proximity to the wall 40.

[0049] 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 an upward airflow behind the cooktop 22, creating a low negative pressure zone that accelerates the airflow backward, reducing smoke escape from the front and minimizing harm to the human body. Furthermore, the air curtain device 10 forms a wind wall on the wall 40, protecting it from oil fume pollution.

[0050] 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 includes: a stove 22, a range hood 21, and an air curtain device 10. The stove 22 is mounted on the stovetop; the range hood 21 is mounted above the stovetop; and the air curtain device 10 is located on the side of the stove 22 near the wall 40.

[0051] The air curtain device 10 is located on the side of the stove away from the stove 22, that is, the air curtain device 10 is located under the stove, and the air outlet 102 of the air curtain device 10 is connected to the space where the stove 22 is located. In this way, the air curtain device 10 does not occupy the space of the stove surface and is far away from the range hood 21, thus reducing the impact on the smoke extraction performance of the range hood 21.

[0052] In the cooking equipment 20 of this application, the airflow generated by the air curtain device 10 flows upward at high speed along the wall 40, forming a low negative pressure zone. The smoke rising from the pot 30 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 the people in the front. Furthermore, because there is a high-speed airflow on the side of the wall 40, although the fumes move backward, they will not come into direct contact with the wall 40, thus protecting the wall 40.

[0053] 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 outlet is located at the top of the housing and is configured to be located on the side of the stove near the wall. A fan assembly is disposed within the air duct. The fan assembly is used to blow air through the air duct to the air outlet to form an upward airflow above the air outlet, causing the smoke generated by the stove to tilt towards the wall.

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

4. The air curtain device according to claim 1, characterized in that, A guide vane is provided on the side of the air outlet away from the wall, and the guide vane is used to control the direction of the airflow blowing out of the air outlet; or... The air outlet has a built-in guide vane, which is used to control the direction of the airflow blown out of the air outlet.

5. The air curtain device according to claim 4, characterized in that, The flow guide plate is movably connected to the second housing. The guide vane has a first state and a second state. In the first state, the guide vane covers the air outlet. In the second state, the opening angle of the guide vane is greater than or equal to 30° and less than or equal to 90° to open the air outlet. The opening angle of the guide vane is the angle between the guide vane and the plane where the air outlet is located.

6. The air curtain device according to claim 5, characterized in that, The opening angle of the guide vane is positively correlated with the firepower level 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 air curtain device is symmetrically arranged with respect to the center line of the stove.

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 outlet of the air curtain device is connected to the space where the stove is located.

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