Air curtain device and cooking equipment

Abstract

The application discloses a wind curtain device and a cooking equipment. 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 and the air outlet are arranged at the top end of the shell. The air inlet is arranged on the side of the stove close to the wall, and the air outlet is arranged on the side of the stove away from the wall. The fan assembly is arranged in the air duct. The fan assembly is used for sucking air from the air inlet through the air duct and blowing air at the air outlet, so as to form a downward air flow above the air inlet and form an air flow which is inclined upward to the side of the wall above the air outlet, 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 forms a downward air flow at the position close to the wall through the air inlet, and gives the front flue gas an accelerating effect of being inclined upward to the inside through the air outlet. Under the superposition of the effects of the two, the flue gas will form a trend of flowing to the side of the wall, thereby reducing the flue gas running to the front side and the side.

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 above-mentioned technical problems, the first technical solution adopted in this application is: to provide an air curtain device, which is 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 and the air outlet are located at the top of the housing. The air inlet is configured to be located on the side of the stove close to the wall, and the air outlet is configured to be located on the side of the stove away from the wall. The fan assembly is located in the air duct and is used to draw air from the air inlet through the air duct and blow air at the air outlet to form a downward airflow above the air inlet and an upward airflow inclined towards the wall above the air outlet, so that the smoke generated by the stove is inclined towards the side close to the wall.

[0007] Furthermore, the housing includes: a first housing, a second housing, and a third housing connected in sequence by bending, wherein the first housing and the third housing are arranged opposite to each other, the air inlet is located in the first housing, and the air outlet is located in the third housing.

[0008] Furthermore, the first housing has a first receiving cavity, the air duct includes the first receiving cavity, and the fan assembly is disposed within the first receiving cavity.

[0009] Furthermore, the airflow of the fan assembly is positively correlated with the firepower level of the stove.

[0010] Furthermore, the air curtain device also includes a guide vane, which is located on the side of the air outlet away from the air inlet, and is used to control the direction of airflow at the air outlet.

[0011] Furthermore, the guide vane is movably connected to the housing, and the guide vane has a closed state and an open state. In the closed state, the guide vane blocks the air outlet. In the open state, the angle β between the guide vane and the plane where the air outlet is located satisfies the following formula: 30°≤β≤90°.

[0012] Furthermore, when installed, the air curtain device is symmetrically positioned relative to the center line of the stove.

[0013] 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.

[0014] To solve the above-mentioned technical problems, the first technical solution adopted in this application is to provide a cooking device, which includes a stove and an air curtain device, wherein the stove is installed on the stove; the air curtain device is the air curtain device of any of the above embodiments, and the air curtain device is spaced apart from the stove.

[0015] Furthermore, the air curtain device is located on the side of the stove away from the stove, and the air inlet and outlet are 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 duct. In the installed state, the air inlet and air outlet are located at the top of the housing. The air inlet is positioned on the side of the stove closest to the wall, and the air outlet is positioned on the side of the stove furthest from the wall. The fan assembly is located within the air duct and is used to draw air in from the air inlet and blow air out from the air outlet, creating a downward airflow above the air inlet and an upward airflow tilted towards the wall above the air outlet. This causes the smoke generated by the stove to tilt towards the wall. The air curtain device of this application creates a downward airflow near the wall through the air inlet and accelerates the smoke inward and upward through the air outlet. The combined effect of these two effects causes the smoke to flow towards the wall. Reducing smoke escape from the front and sides can lower the operating airflow of the range hood, thus achieving a better smoke extraction effect. Furthermore, the air curtain device accelerates the flow of smoke from the front while simultaneously forming an effective air curtain wall, preventing the smoke from the front from harming the human body. Because of the high-speed airflow on the side of the wall, although the fumes move backward, they do not directly contact the wall surface, thus protecting the wall. 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; 113. Third housing; 13. Guide vane; 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 and Figure 2 As shown, Figure 1 This is a schematic diagram of an embodiment of an air curtain device provided in this application. Figure 2 This is a schematic diagram of an embodiment of a cooking device provided in this application. The cooking device 20 provided in this application includes an air curtain device 10. Specifically, the air curtain device 10 includes a housing 11 and a fan assembly 12 located within the housing 11.

[0030] The shell 11 has an air duct (not shown in the figure), such as Figure 1 As shown, the housing 11 is provided with an air inlet 101 and an air outlet 102 that are connected to the air duct. When the air curtain device 10 is installed, the air inlet 101 and the air outlet 102 are both located at the top of the housing 11.

[0031] See also Figure 2 As shown, in the installed state, the air inlet 101 of the air curtain device 10 is configured to be located on the side of the cooktop 22 closest to the wall 40. The air outlet 102 is configured to be located on the side of the cooktop 22 furthest from the wall 40.

[0032] like Figure 2 As shown, the fan assembly 12 is located in the air duct. The fan assembly 12 is used to draw air from the air inlet 101 through the air duct and blow air at the air outlet 102 to form a downward airflow above the air inlet 101 and an upward airflow inclined towards the wall 40 above the air outlet 102, so that the smoke generated by the stove 22 is inclined towards the side closer to the wall 40.

[0033] Specifically, the air curtain device 10 draws air in through the air inlet 101, causing the airflow on the wall 40 to begin flowing downwards and giving it an initial downward velocity. When smoke is generated, the smoke on the rear side is subjected to the downward and inward suction force provided by the air curtain device 10, and the airflow from the front side supplements it, dragging the smoke. The airflow drawn in from the air inlet 101 passes through the air curtain device 10 and is discharged from the air outlet 102, accelerating the smoke on the front side inwards and upwards, exerting a traction effect on the smoke. Under the superposition of these two effects, the smoke will form a tendency to flow towards the wall 40. Reducing the smoke escape from the front and sides can reduce the working air volume of the range hood 21, thus achieving a better smoke extraction effect. Furthermore, while accelerating the flow of smoke on the front side, it forms an effective air curtain wall, preventing the smoke on the front side from harming the human body, such as... Figure 2 As shown in the diagram. Furthermore, because there is airflow on the side of wall 40, although the fumes move backward, they will not come into direct contact with wall 40, thus protecting wall 40.

[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 1 As shown, the housing 11 may include a first housing 111, a second housing 112, and a third housing 113 connected in sequence by bending. 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. Figure 1 As shown, the first housing 111 can be stepped, with the air inlet 101 located at the top of the first housing 111 and the fan assembly 12 located at the bottom of the first housing 111. Thus, when the housing 111 is placed inside the cabinet, the top of the first housing 111 is embedded in the rear opening of the stove, and the bottom of the first housing 111 is placed under the stove.

[0036] The third housing 113 is disposed opposite to the first housing 111, and the first housing 111, the second housing 112 and the third housing 113 are arranged in a U-shape. The third housing 113 is provided with an air outlet 102. When the air curtain device 10 is installed, the third housing 113 can be embedded in the front opening of the stove, and the second housing 112 is disposed inside the stove.

[0037] exist Figure 1In 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.

[0038] The air curtain device 10 draws air in from the air inlet 101, creating a downward airflow above the inlet 101. The smoke rising from the pot on the stove 22 flows towards the rear due to the pressure difference and exits at the air outlet 102, accelerating the smoke from the front inwards and upwards, increasing the dragging and pulling effect. The combined effect of these two factors causes the smoke to tend to flow towards the wall 40.

[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 third housing 113.

[0041] In other embodiments, the guide vane 13 may also be movably connected to the third housing 113, that is, the guide vane 13 is rotatably disposed at the end of the third housing 113 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 guide vane 13 opens the air outlet 102. Preferably, the opening angle of the guide vane 13 can be greater than or equal to 30° and less than or equal to 90°, 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. When 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] Furthermore, the guide vane 13 may also be provided with an adjustment part (not shown in the figure), which can be used to adjust the angle of the guide vane 13.

[0045] In other embodiments, such as Figure 3As shown, the guide vane 13 can also be omitted, and instead, a guide vane (not shown) can be built into the air outlet 102. The guide vane is used to control the direction of the airflow blowing out of the air outlet 102. By building in the guide vane, the volume of the air curtain device 10 can be reduced, thus reducing the space occupied by the air curtain device 10 on the table.

[0046] Furthermore, when the stove 22 is turned on, the airflow of the fan assembly 12 is positively correlated with the firepower level of the stove 22. When the stove 22 is turned on, it also drives the air curtain device 10 to start working. 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 level, less oil smoke is produced, the fan assembly 12 runs at a low speed, and the airflow velocity on the front and rear sides is low. When the firepower of the stove 22 is at a high level, more oil smoke is produced, the fan assembly 12 runs at a high speed, the airflow velocity on both sides is enhanced, and the dragging and traction effect is increased.

[0047] 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 arranged 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.

[0048] In summary, the air curtain device 10 provided in this application has a simple structure and can be installed as a whole in the cabinet, without occupying the space of the countertop and the range hood 21. The airflow drawn in from the air inlet 101 passes through the air curtain device 10 and is discharged from the air outlet 102, accelerating the smoke inward and upward, and exerting a traction effect on the smoke. Under the superposition of the two effects, the smoke will form a tendency to flow towards the wall 40. Reducing the smoke escape from the front and sides can reduce the working air volume of the range hood 21, thereby achieving a better smoke extraction effect. Moreover, while accelerating the flow of smoke in the front, the air curtain device 10 also forms an effective air curtain wall, preventing the smoke in the front from harming the human body.

[0049] This application also provides a cooking device; please refer to [link / reference]. Figure 2 As shown, Figure 2This 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.

[0050] The cooktop 22 is mounted on the cooktop, the range hood 21 is mounted above the cooktop, and the air curtain device 10 is spaced apart from the cooktop. The structure of the air curtain device 10 is described in any of the above embodiments and will not be repeated here.

[0051] 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 and air outlet 102 of the air curtain device 10 are 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 the impact on the smoke extraction performance of the range hood 21 is also small.

[0052] In the cooking equipment 20 of this application, the airflow drawn in from the air inlet 101 by the air curtain device 10 passes through the air curtain device 10 and is discharged from the air outlet 102, accelerating the inward and upward movement of the smoke from the front side and exerting a traction effect on the smoke. Under the combined effect of these two factors, the smoke will tend to flow towards the wall 40. Reducing the smoke escape from the front and sides can reduce the working air volume of the range hood 21, thereby achieving a better smoke extraction effect. Moreover, while accelerating the flow of smoke from the front side, the air curtain device 10 also forms an effective air curtain wall, preventing the smoke from the front side from harming the human body.

[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 has an air inlet and an air outlet communicating with the air duct. In the installed state, the air curtain device has the air inlet and the air outlet located at the top of the housing. The air inlet is configured to be located on the side of the stove close to the wall, and the air outlet is configured to be located on the side of the stove away from 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 and blow air out at the air outlet, so as to form a downward airflow above the air inlet and an upward airflow inclined towards one side of the wall above the air outlet, so that the smoke generated by the stove is inclined 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, a second housing, and a third housing connected in sequence by bending, wherein the first housing and the third housing are arranged opposite to each other, the air inlet is located in the first housing, and the air outlet is located in the third housing.

3. The air curtain device according to claim 2, characterized in that, The first housing has a first receiving cavity, the air duct includes the first receiving cavity, and the fan assembly is disposed within the first receiving cavity.

4. 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.

5. The air curtain device according to claim 1, characterized in that, The air curtain device also includes a guide vane, which is located on the side of the air outlet away from the air inlet, and is used to control the direction of airflow at the air outlet.

6. The air curtain device according to claim 5, characterized in that, The guide vane is movably connected to the housing. The guide vane has a closed state and an open state. In the closed state, the guide vane blocks the air outlet. In the open state, the angle β between the guide vane and the plane where the air outlet is located satisfies the following formula: 30°≤β≤90°.

7. 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.

8. The air curtain device according to claim 1, wherein, in the installed state, the distance between the air curtain device and the wall is L, wherein L is in the range of 20mm≤L≤100mm.

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 arranged at an interval from the stove.

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

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