CN105266607A - Electric steam box air curtain control device with steam spray direction capable of being changed - Google Patents

Abstract

The invention discloses an air curtain control device for an electric steamer that can change the direction of steam ejection. There is an inner tank and an air curtain control device inside, the inner tank communicates with the opening of the box body, the air curtain control device is located on the top of the inner tank, the air curtain control device has an air duct connected with the inner tank, and a For the fan, the air inlet of the air duct is connected with the air outlet of the fan, and the first steam exhaust port of the air duct is connected with the first exhaust port; there is also a decorative panel on the front side of the box body, and there are several decorative panels on the decorative panel. The second exhaust port with the opening facing down; the air duct also has an air curtain exhaust port independent of the steam exhaust port, the air curtain exhaust port is connected with the second exhaust port, and the air curtain exhaust port and the steam exhaust port One port of the tuyere facing the inner cavity of the air duct is alternatively connected with the inner cavity of the air duct; thus, the ejection direction of the steam can be well changed, and the safety hazard of the user being scalded is effectively avoided.

Description

Electric steam box air curtain control device that can change the direction of steam injection

technical field

The invention relates to the technical field of an electric steamer, in particular to an air curtain control device for an electric steamer capable of changing the steam ejection direction.

Background technique

At present, the electric steamer on the market is a cooking system device that uses steam to heat food. The inner tanks of this type of electrical appliances are designed with steam exhaust holes (or steam outlets) connected to the air duct of the exhaust system, which are used for cooking during the cooking process. The saturated steam generated by heating in the inner tank is discharged in real time to ensure the heating temperature of the steam in the inner tank is balanced. At the same time, a fan is designed on the top of the inner tank to blow out the steam exhaust hole (or steam outlet) and discharge it into the air duct. Saturated Vapor. Because the fan starts to work synchronously with the cooking mode function, the fan will continue to work for a period of time after the cooking is over, so as to ensure that the steam exhaust system can well discharge the steam in the inner tank.

However, this structural design has the following disadvantages: First, it is necessary to precisely control and design the size of the steam outlet (or steam outlet) to optimize the control of the steam discharge, otherwise it will seriously affect the heating temperature of the inner pot, and then cause normal cooking. ;Second: When cooking with steam, the inner tank must be filled with a lot of steam. When the cooking is finished and the sliding door is opened, a lot of steam will gushes out, and the fan is still working at this time. If the wind force is strong, the steam that gushes out will be directly sprayed on the user's face, and the user will be easily burned by the steam or cause the glasses to be covered with steam for the user wearing glasses, which poses certain safety hazards and inconvenient use.

Contents of the invention

In order to overcome the above defects, the present invention provides an air curtain control device for an electric steamer that can change the direction of steam ejection. Security risks.

The technical solution adopted by the present invention in order to solve the technical problem is: an air curtain control device for an electric steamer that can change the direction of steam ejection. The electric steamer includes a box body. The side of the box is open, and the front side of the box is positioned with a plurality of through first exhaust ports with openings facing forward. The box is positioned with an inner tank and an air curtain control device, wherein the The inner tank communicates with the opening of the box body, the air curtain control device is positioned on the top of the inner tank, and the air curtain control device also has a An air channel for flow release and a fan, the air inlet of the air channel is connected with the air outlet of the fan, and a steam exhaust port of the air channel is connected with the first exhaust port; in front of the box A decorative plate is also positioned on the side, and a plurality of second air outlets through and facing downwards are positioned on the decorative plate; in addition, the air duct also has an air outlet independent of the steam air outlet. Curtain exhaust port, the air curtain exhaust port communicates with the second exhaust port, and one of the air curtain exhaust port and the steam exhaust port facing the inner cavity of the air duct is connected to the The inner cavities of the air ducts are connected.

As a further improvement of the present invention, the plurality of first air outlets and the decorative panel are all arranged on the front side of the box and located above the opening thereof.

As a further improvement of the present invention, the air curtain control device also has an air duct structure for steam flow release: the air curtain control device also includes a fixing plate and an air duct seat, and the fixing plate is positioned on the The top of the liner, the air channel seat and the fan are positioned on the fixed plate, and the air channel is formed between the air channel seat and the fixed plate;

In addition, based on the direction of use, the side of the air duct facing the rear side of the box forms the air inlet of the air duct, and the other side of the air duct facing the front side of the box forms the air curtain The air outlet and the steam outlet, the air curtain outlet and the steam outlet are independent of each other and arranged up and down, and the air curtain outlet and the steam outlet are facing a port of the inner cavity of the air duct The other port opening of the air curtain exhaust port facing away from the inner cavity of the air duct faces downward, and the other port opening of the steam exhaust port facing away from the inner cavity of the air duct faces forward.

As a further improvement of the present invention, the structure in which the air duct communicates with the interior of the inner container is: a penetrating steam discharge port is positioned on the top of the inner container, and the steam discharge port communicates with the air channel the inner cavity;

The air curtain air exhaust port and the steam exhaust port facing the inner cavity of the air duct choose one of the ports connected to the inner cavity of the air duct to communicate with the inner cavity of the air duct: the air curtain control device also includes a strip-shaped guide An air plate and a driving part, the air guide plate is movably built in the inner cavity of the air duct and close to a port of the air curtain air outlet, and the driving part can drive the air guide plate relative to the The fixed plate is positioned by moving up and down, and at the same time, the wind deflector can block one of the air curtain outlet-port and the steam exhaust outlet-port.

As a further improvement of the present invention, the length direction of the first port of the air curtain outlet is parallel to the length direction of the first port of the steam exhaust port; the direction of the wind deflector is parallel to the first port of the air curtain outlet The direction of the length direction of the port is movable and built in the inner cavity of the air duct, and a U-shaped groove is formed on the two sides of the air deflector facing and facing away from the front side of the box, and the two U-shaped The grooves are correspondingly opened on the two side surfaces;

The driving part is a solenoid valve, and the solenoid valve is positioned on the air duct seat. The valve stem of the solenoid valve movably extends into the inner cavity of the air duct and is fixedly connected with the air guide plate.

As a further improvement of the present invention, a boss facing away from the fixing plate and protruding from the outer surface of the air duct seat is integrally formed on the air duct seat; there are two solenoid valves, and the two The solenoid valve is fixed on the boss at intervals.

As a further improvement of the present invention, the electric steamer further includes a sliding door, the bottom side of the sliding door is hinged on the front side of the box body, and the sliding door can open and close the opening of the box body ; In addition, a deflector is positioned on the inner side of the sliding door, and the side of the deflector facing the opening of the box has a circular arc concave structure.

As a further improvement of the present invention, the electric steamer also includes a micro switch and a controller, the micro switch is positioned on the box and close to the sliding door to sense the The micro switch for the door pull switch signal is electrically connected to the controller, and the controller controls the action of the valve stem of the electromagnetic valve.

As a further improvement of the present invention, the fan is also electrically connected to the controller.

The beneficial effects of the present invention are: by positioning a decorative plate on the front side of the box body, the decorative plate is positioned with a plurality of through second air outlets with openings facing downwards; The air curtain air outlet of the steam air outlet, the air curtain air outlet is connected to the second air outlet, and the air curtain air outlet and the steam air outlet are facing the inner cavity of the air duct One of the ports is connected to the inner cavity of the air duct; when the cooking work of the electric steamer is finished and the sliding door is opened, it can be controlled to block the port of the steam exhaust port facing the inner cavity of the air duct, and at the same time A port of the air curtain outlet facing the inner cavity of the air duct is connected with the inner cavity of the air duct, so that the steam in the air duct will be discharged downward through the air curtain exhaust port, which is a good change in the air duct of the conventional electric steamer. The steam is sprayed directly forward through the steam outlet, which effectively avoids the potential safety hazard of the user being burned by the direct spray of steam; in addition, in the present invention, a deflector is positioned on the inner side of the sliding door. The side of the deflector facing the opening of the box has an arc concave structure, which can rebound the steam sprayed to the inner side of the sliding door, and also changes the steam spraying in the inner tank. Out direction, effectively avoiding the safety hazard of the user being scalded by direct steam injection.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the electric steam box that is provided with air curtain control device in the present invention;

Fig. 2 is a schematic diagram of the assembly structure of the air curtain control device of the present invention installed on the electric steam box;

Fig. 3 is a schematic structural view of the first and second exhaust ports of the present invention being arranged on the electric steamer box;

Fig. 4 is a schematic diagram of the explosion structure of the air curtain control device shown in Fig. 2;

Fig. 5 is a schematic cross-sectional structure diagram of the air duct of the present invention;

Fig. 6 is a schematic diagram of the flow path of steam in the air duct when the electromagnetic valve is in a retracted state (the sliding door is not opened) in the present invention;

Fig. 7 is a schematic diagram of the flow path of steam in the air duct when the electromagnetic valve is in the extended state (the sliding door is opened) in the present invention;

Fig. 8 is a schematic diagram of the steam flow path in the inner tank and the air duct when the sliding door is opened in the prior art;

Fig. 9 is a schematic diagram of the steam flow path in the inner tank and the air duct when the sliding door of the present invention is opened;

Fig. 10 is a schematic structural view of an electric steamer equipped with an air curtain control device and a deflector at the same time according to the present invention;

Fig. 11 is a schematic diagram of the flow path of steam in the inner tank and the air duct when the sliding door of the electric steamer shown in Fig. 10 is opened.

In conjunction with the accompanying drawings, the following descriptions are made:

1——box 10——inner tank

11——air curtain control device 12——the first exhaust port

110——fixed plate 111——air duct seat

112——wind deflector 113——solenoid valve

114——steam exhaust port 115——air curtain exhaust port

116——fan 2——sliding door

20——deflector 3——decorative plate

30——Second exhaust port 4——Micro switch

detailed description

Embodiments of the air curtain control device for an electric steamer capable of changing the steam ejection direction of the present invention will be described in detail below with reference to the accompanying drawings.

An air curtain control device for an electric steamer that can change the direction of steam ejection according to the present invention, the electric steamer includes a box body 1, based on the direction of use, the front side of the box body 1 (that is, facing the user) One side of the box) is open, and the front side of the box body 1 is positioned with a plurality of through first exhaust ports 12 with openings facing forward. The box body 1 is positioned with an inner tank 10 and a wind A curtain control device 11, wherein the inner tank 10 communicates with the opening of the box body 1, the air curtain control device 11 is positioned on the top of the inner tank 10, and the air curtain control device 11 It also has an air duct that communicates with the inside of the inner container 10 and provides steam flow and release, and a fan 116. The air inlet of the air duct communicates with the air outlet of the fan 116, and a steam exhaust port of the air duct 114 communicates with the first exhaust port 12; a decorative plate 3 is also positioned on the front side of the box body 1, and the decorative plate 3 is positioned with a plurality of second through holes with openings facing downwards. Exhaust port 30; the other said air channel also has an air curtain air outlet 115 independent of said steam air outlet, said air curtain air outlet is connected with said second air outlet 30, and the One of the air curtain exhaust port 115 and the steam exhaust port 114 facing the inner cavity of the air duct is alternatively connected to the inner cavity of the air duct.

In this embodiment, the plurality of first air outlets 12 and the decorative panel 3 are arranged on the front side of the box body 1 and located above the opening thereof.

In this embodiment, the air curtain control device 11 also has an air duct structure for steam flow and release: the air curtain control device 11 also includes a fixing plate 110 and an air duct seat 111, and the fixing plate 110 Positioned on the top of the liner 10, the air channel seat 111 and the fan 116 are located on the fixed plate, and the air channel is formed between the air channel seat and the fixed plate;

In addition, based on the direction of use, the side of the air duct facing the rear side of the box body 1 forms the air inlet of the air duct, and the other side of the air duct facing the front side of the box body 1 forms the air inlet. The air curtain exhaust port 115 and the steam exhaust port 114, the air curtain exhaust port and the steam exhaust port are independent of each other and arranged up and down, and the air curtain exhaust port 115 and the steam exhaust port 114 face One port of the inner cavity of the air duct is flat, the opening of the other port of the air curtain exhaust port facing away from the inner cavity of the air duct faces downward, and the opening of the other port of the steam exhaust port facing away from the inner cavity of the air duct faces forward.

Preferably, the structure in which the air duct communicates with the interior of the inner container 10 is: a penetrating steam discharge port is positioned on the top of the inner container 10, and the steam discharge port communicates with the interior of the air channel. Cavity;

The air curtain air exhaust port and the steam exhaust port facing the inner cavity of the air duct choose one of the ports to communicate with the inner cavity of the air duct. The air curtain control device 11 also includes a strip-shaped The wind deflector 112 and the driving part, the wind deflector 112 is movably built in the inner cavity of the air duct and close to a port of the air curtain air outlet, and the driving part can drive the wind deflector 112 moves up and down relative to the fixed plate, and at the same time, the wind deflector 112 can block one of the air curtain exhaust port and the steam exhaust port.

Preferably, the length direction of a port of the air curtain exhaust port is parallel to the length direction of the port of the steam exhaust port; The direction of movement is built in the inner cavity of the air duct, and the two sides of the air deflector 112 facing and facing away from the front side of the box body 1 are respectively formed with a U-shaped groove, and the two U-shaped grooves The grooves correspond to the openings on the two sides; that is, the two U-shaped grooves correspond to the openings facing forward and backward respectively, and the two U-shaped grooves can play a strengthening role to prevent the deformation of the wind deflector;

The driving part is a solenoid valve 113, and the solenoid valve is positioned on the air duct seat 111, and the valve stem of the solenoid valve movably extends into the inner cavity of the air duct and is fixed with the air deflector 112. connect.

Preferably, a boss facing away from the fixed plate and protruding from the outer surface of the air duct seat is integrally formed on the air duct seat 111; there are two solenoid valves 113, and the two solenoid valves The interval is fixed on the boss.

In this embodiment, the electric steamer further includes a sliding door 2, the bottom side of the sliding door 2 is hinged on the front side of the box body 1, and the sliding door 2 can open and close the box body 1, which is a conventional technical means, and will not be described in detail here; in addition, a deflector 20 is positioned on the inner side of the sliding door 2, and the deflector is opened toward the box body 1. One side is arc concave structure.

In this embodiment, the electric steamer also includes a micro switch 4 and a controller, and the micro switch 4 is positioned on the box body 1 and close to the sliding door 2 for sensing The micro switch for detecting the sliding door switch signal is electrically connected to the controller, and the controller controls the action of the valve stem of the solenoid valve 113 .

In this embodiment, the fan 116 is also electrically connected to the controller.

The working principle of the present invention is: by designing the air channel for steam flow and release to have two mutually independent air outlets, the two rows of air outlets are respectively defined as steam air outlet 114 and air curtain air outlet 115, so One port of the steam exhaust port and the air curtain exhaust port facing the inner cavity of the air duct is alternatively connected to the inner cavity of the air duct, and the steam exhaust port 114 is opened to the other port of the inner cavity of the air duct It faces forward and communicates with the first exhaust port 12, and the other port of the air curtain exhaust port facing away from the inner chamber of the air duct faces downward and communicates with the second exhaust port 30;

Wherein, in order to realize that one port of the steam exhaust port and the air curtain exhaust port facing the inner cavity of the air duct is connected with the inner cavity of the air duct, its structure is designed as follows: an air deflector 112 and a driving part are provided, In this example, the air deflector 112 is movably built in the inner cavity of the air duct and is close to a port of the air curtain air outlet, and the driving component is a solenoid valve 113, and the solenoid valve The positioning is arranged on the air duct seat 111, the valve stem of the solenoid valve is fixedly connected with the air deflector 112, and can drive the air deflector to move up and down relative to the fixed plate, and at the same time, the air deflector The up and down movement and positioning of the wind plate can also selectively block a port of the air discharge port of the air curtain or a port of the steam discharge port.

When the electric steamer is in the working state of cooking, the controller controls the valve stem of the electromagnetic valve 113 to be in a retracted state. One port is open; the steam in the liner can enter the inner cavity of the air duct through the steam discharge port on the liner, and be discharged from the steam exhaust port by means of the wind force of the fan 116; since the steam exhaust port faces away from the air duct The other port of the chamber and the first exhaust port both open forward, so the steam discharged from the steam exhaust port will be sprayed forward, and this process is the normal state of steam exhaust during the cooking operation of the electric steamer.

When the cooking work of the electric steamer is finished and the sliding door 2 is opened, the micro switch 4 installed on the box senses the signal that the sliding door 2 is opened, and transmits the signal to the controller, and the control The valve stem of the solenoid valve 113 is controlled by the device to be in the extended state. At this time, the air deflector 112 blocks a port of the steam exhaust port, and a port of the air curtain exhaust port is in an open state, and the inner tank The steam in the air can enter the inner cavity of the air duct through the steam discharge port on the inner tank, and be discharged from the air curtain exhaust port by means of the wind force of the fan 116; And the second exhaust port opens downward. When the sliding door is opened, the steam blown from the air curtain exhaust port will be sprayed downward, which is a good change from the steam exhaust in the air duct of the conventional electric steamer. The mouth faces the direction of direct spraying, which effectively avoids the safety hazard of the user being scalded by the direct spraying of steam.

In addition, in the present invention, a deflector is positioned on the inner side of the sliding door, and the side of the deflector facing the opening of the box has an arc concave structure, and the arc concave structure can make spraying The steam on the inner side of the sliding door is rebounded, which also changes the direction of steam ejection in the inner tank, effectively avoiding the safety hazard of the user being scalded by direct steam injection.

The above-mentioned air curtain control device is an embodiment to solve the problem of "changing the steam ejection direction when the sliding door is opened". In addition, there are other solutions. For example, we can innovate the software program for the controller to control the operation of the fan, that is: when the sliding door 2 is opened, the micro switch 4 is touched, and the micro switch 4 detects it. The sliding door opening signal is transmitted to the controller, and the controller controls the fan 116 to temporarily suspend work. At this time, because there is no external blowing force from the fan, the steam in the inner tank will follow the natural air flow state and radiate upward when gushing out. Furthermore, the phenomenon of direct steam injection is avoided; when the delayed working time of the fan is over, the controller controls the fan 116 to accelerate instantaneously, so that a large amount of steam in the inner tank is ejected.

Claims (9)

1. An electric steam box air curtain control device capable of changing the direction of steam ejection, the electric steam box includes a box body (1), based on the direction of use, the front side of the box body (1) is open, And the front side of the box body (1) is positioned with a plurality of through first air outlets (12) with openings facing forward, and an inner tank (10) and an air curtain are positioned inside the box body (1). A control device (11), wherein the inner tank (10) communicates with the opening of the box (1), and the air curtain control device (11) is positioned on the top of the inner tank (10) , and the air curtain control device (11) also has an air duct that communicates with the inside of the inner tank (10) and provides steam flow and release, and a fan (116), the air inlet of the air duct is connected with the fan The air outlets of (116) are connected, and a steam exhaust port (114) of the air duct is connected with the first air outlet (12); it is characterized in that: on the front side of the box body (1) there is also Positioning is provided with a decorative plate (3), and a plurality of second air outlets (30) through and opening downward are positioned on the decorative plate (3); in addition, the air duct also has a The air curtain air outlet (115) of the steam air outlet, the air curtain air outlet is connected with the second air outlet (30), and the air curtain air outlet (115) and the steam One port of the air outlet (114) facing the inner cavity of the air duct is alternatively connected with the inner cavity of the air duct. 2. The electric steam box air curtain control device capable of changing the direction of steam ejection according to claim 1, characterized in that: the plurality of first exhaust ports (12) and the decorative board (3) are all arranged On the front side of the box (1) and at a position above its opening. 3. The electric steam box air curtain control device capable of changing the direction of steam ejection according to claim 1, characterized in that: the air curtain control device (11) also has an air duct for steam flow and release. : the air curtain control device (11) also includes a fixed plate (110) and an air channel seat (111), the fixed plate (110) is positioned on the top of the inner bag (10), and the air channel seat (111) and the fan (116) are positioned on the fixed plate, and the air channel is formed between the air channel seat and the fixed plate; In addition, based on the direction of use, the side of the air duct facing the rear side of the box body (1) forms the air inlet of the air duct, and the air duct faces the other side of the front side of the box body (1). The air curtain air outlet (115) and the steam air outlet (114) are formed on the side, the air curtain air outlet and the steam air outlet are independent of each other and arranged up and down, and the air curtain air outlet (115 ) and the steam exhaust port (114) are on the same level as one port facing the inner cavity of the air duct, the other port opening of the air curtain exhaust port facing away from the inner cavity of the air duct faces downward, and the steam exhaust port faces away from the The other port opening to the inner chamber of the air duct faces forward. 4. The electric steam box air curtain control device capable of changing the direction of steam ejection according to claim 3, characterized in that: the structure in which the air duct communicates with the interior of the inner tank (10) is: in the The top of the liner (10) is positioned with a through steam discharge port, and the steam discharge port is connected to the inner cavity of the air duct; The air curtain air exhaust port and the steam exhaust port facing the inner cavity of the air duct choose one of the ports connected to the inner cavity of the air duct to communicate with the inner cavity of the air duct: the air curtain control device (11) also includes a long Strip wind deflector (112) and a driving part, the wind deflector (112) is movably built in the inner cavity of the air duct and is close to a port of the air curtain air outlet, and the driving part can Drive the wind deflector (112) to move up and down relative to the fixed plate, and at the same time, the wind deflector (112) can block one port of the air curtain air outlet and one port of the steam exhaust port. one. 5. The electric steam box air curtain control device capable of changing the direction of steam ejection according to claim 4, characterized in that: the length direction of a port of the air exhaust port of the air curtain is the same as that of the port of the steam exhaust port. The length direction is parallel; the wind deflector (112) is movable and built in the inner cavity of the air duct along the direction parallel to the length direction of the first port of the air curtain air outlet, and the wind deflector (112) faces and A U-shaped groove is also formed on both sides facing away from the front side of the box (1), and the two U-shaped grooves are correspondingly opened on the two sides; The driving part is a solenoid valve (113), and the solenoid valve is positioned on the air duct seat (111). Wind plate (112) is fixedly connected. 6. The electric steam box air curtain control device capable of changing the direction of steam ejection according to claim 5, characterized in that: on the air duct seat (111), there is also integrally formed a strip facing away from the fixing plate and There are two bosses protruding from the outer surface of the air channel seat; there are two solenoid valves (113), and the two solenoid valves are fixed on the boss at intervals. 7. The electric steamer air curtain control device capable of changing the direction of steam ejection according to claim 5, characterized in that: the electric steamer also includes a sliding door (2), and the bottom of the sliding door (2) The side is hinged on the front side of the box body (1), and the sliding door (2) can open and close the opening of the box body (1); A baffle (20) is positioned for positioning, and the side of the baffle facing the opening of the box body (1) has a circular arc concave structure. 8. The electric steamer air curtain control device capable of changing the direction of steam ejection according to claim 7, characterized in that: the electric steamer also includes a micro switch (4) and a controller, the micro switch (4) Positioned on the box (1) and close to the sliding door (2), the micro switch for sensing the sliding door switch signal is electrically connected to the controller , and the controller controls the action of the valve stem of the solenoid valve (113). 9. The air curtain control device for an electric steamer capable of changing the direction of steam ejection according to claim 8, characterized in that: the fan (116) is also electrically connected to the controller.