CN210540985U

CN210540985U - Electric cooking appliance

Info

Publication number: CN210540985U
Application number: CN201920865317.XU
Authority: CN
Inventors: 任富佳; 单晓凯; 阮华平; 李中正
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-05-19
Anticipated expiration: 2029-06-10

Abstract

The utility model provides a cooking appliance, which relates to the technical field of cooking appliances, and comprises an inner container, a heat dissipation air channel formed above the inner container and a heat dissipation fan connected with the heat dissipation air channel, wherein an exhaust hole for communicating the inner container and the heat dissipation air channel is arranged between the inner container and the heat dissipation air channel, the heat dissipation fan works to suck air around the inner container and then discharge the air into the heat dissipation air channel, and the air entering the heat dissipation air channel passes through the upper part of the exhaust hole and is discharged out of the cooking appliance; the air guide piece located at the upper part of the exhaust hole is arranged in the heat dissipation air channel, and after the air is guided by the air guide piece, the air passes through the upper area of the exhaust hole from the heat dissipation air channel, so that the air is not easy to enter the inner container through the exhaust hole. The cooking appliance with the steam or baking function in the prior art is relieved, and the technical problem that cold air easily enters the inner container from the exhaust hole when oil smoke or steam is exhausted, so that the temperature field of the appliance in a cooking area is disturbed, and the cooking effect is influenced is solved.

Description

Electric cooking appliance

Technical Field

The utility model relates to a cooking appliance technical field particularly, relates to a cooking appliance.

Background

At present, for cooking appliances with steaming function, baking function or steaming and baking function, such as steam ovens or ovens, steam or oil smoke generated by the inner container of the cooking appliances are automatically discharged to the outside of the cooking appliances; in the existing smoke exhaust structure of a cooking appliance with steam or baking functions, an exhaust funnel is usually arranged at the upper part of an inner container of the cooking appliance, and a heat radiation fan and an air deflector are arranged above the inner container, wherein a heat radiation air duct is formed between the air deflector and a heat radiation bottom plate above the inner container. And the heat dissipation air duct forms an exhaust port at the front part of the cooking appliance, a fan air outlet of the heat dissipation fan is connected with the smoke exhaust air duct, and steam or oil smoke exhausted by the exhaust funnel is exhausted to the external environment through the exhaust hole by utilizing air blown by the heat dissipation fan.

In the arrangement, the air blown out by the heat dissipation fan can directly blow to the exhaust holes through the heat dissipation air duct, so that cold air enters the inner container from the exhaust holes, the temperature field of the electric appliance in a cooking area is interfered, and the cooking effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooking appliance to alleviate cooking appliance among the prior art and lead to cold air to get into the inner bag from the exhaust hole easily when discharge oil smoke or steam, and then disturb the electric appliance in the regional temperature field of cooking, influence the technical problem of cooking effect.

The utility model provides a cooking appliance, which comprises an inner container, a heat dissipation air channel formed above the inner container and a heat dissipation fan connected with the heat dissipation air channel;

the air guide part is used for guiding air exhausted by the heat dissipation fan to be exhausted from the upper part of the exhaust hole and forming a negative pressure area below the exhaust hole.

Furthermore, the air guide is a boss, and the cross-sectional area of the heat dissipation air duct in the area of the boss part is gradually reduced along the air flowing direction.

Furthermore, the heat dissipation air duct comprises a bottom plate for forming a bottom wall of the heat dissipation air duct, and the bottom plate is recessed towards the direction of the heat dissipation air duct to form the boss.

Further, the surface of the boss is an arc-shaped surface.

Further, a furnace lamp connected with the heat dissipation air channel is arranged above the inner container, the furnace lamp is located between the heat dissipation fan and the boss, a light transmission hole opposite to the furnace lamp is formed in the bottom plate, and a light transmission area opposite to the light transmission hole is formed in the top wall of the inner container.

Furthermore, the cooking appliance further comprises a light blocking ring arranged around the stove lamp, and the light blocking ring is fixedly arranged on the bottom plate.

Furthermore, the heat dissipation air duct is rotatably provided with an air duct baffle located at the downstream of the exhaust hole, the air duct baffle is provided with an air vent, and the air duct baffle is used for adjusting the ventilation area of the heat dissipation air duct.

Furthermore, when the ventilation area of the heat dissipation air duct at the air duct baffle is the largest, the air duct baffle is attached to the bottom plate and seals the exhaust holes.

Further, still include the cam and with the motor that cam drive is connected, the wind channel baffle with the bottom plate pin joint in heat dissipation wind channel, the cam with the lower surface butt of wind channel baffle, the cam can drive the wind channel baffle rotates, is used for adjusting the heat dissipation wind channel is in the draught area of wind channel baffle department.

The motor is a synchronous motor, and when the ventilation area of the heat dissipation air duct at the air duct baffle is the minimum, the far end of the cam is abutted against the air duct baffle; when the ventilation area of the heat dissipation air duct at the air duct baffle is the largest, the far end of the cam is abutted to the switch contact on the travel switch.

The utility model provides a beneficial effect that cooking appliance brought is:

the inner container, the heat dissipation air channel formed above the inner container and the heat dissipation fan connected with the heat dissipation air channel are arranged, wherein exhaust holes communicated with the inner container and the heat dissipation air channel are formed between the inner container and the heat dissipation air channel, the heat dissipation fan works to suck air around the inner container and then exhaust the air into the heat dissipation air channel, and the air entering the heat dissipation air channel passes through the exhaust holes and is exhausted out of the cooking appliance; the air guide piece is arranged at the upstream position of the heat dissipation air channel relative to the exhaust hole, air passes through the air guide piece after being guided, and passes through the upper area of the heat dissipation air channel at the exhaust hole, so that the air is difficult to enter the inner container through the exhaust hole, the stability of a temperature field of a cooking appliance in a cooking area is ensured, and the cooking effect of food materials is further ensured.

In addition, due to the shielding of the air guide piece, when air passes through the heat dissipation air channel in the upper area of the exhaust hole position, the heat dissipation air channel can form a negative pressure area in the lower area of the exhaust hole position, so that the exhaust speed of oil smoke or steam in the inner container to the heat dissipation air channel is accelerated, the probability that the air in the heat dissipation air channel enters the inner container through the exhaust hole is further reduced, and the cooking effect of food materials is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic partial structural diagram of a cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic position diagram of an air duct baffle in an electric cooking appliance according to an embodiment of the present invention;

fig. 3 is a schematic view of another position of the air duct baffle in the cooking appliance according to the embodiment of the present invention;

fig. 4 is a schematic view of a partial structure of the cooking appliance according to the embodiment of the present invention when the distal end of the cam abuts against the switch contact of the travel switch;

fig. 5 is a schematic view of a local structure of the cooking appliance according to the embodiment of the present invention when the distal end of the cam abuts against the air duct baffle.

Icon: 100-inner container; 200-a heat dissipation air duct; 300-a heat dissipation fan; 400-furnace lamp; 500-duct baffles; 600-a motor; 700-cam; 800-travel switch; 900-door body;

110-vent holes;

210-a boss; 220-a lamp holder; 230-a stop ring;

510-a vent hole;

810-switch contacts;

910-exhaust port.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides a cooking appliance, which includes an inner container 100, a heat dissipation air duct 200 formed above the inner container 100, and a heat dissipation fan 300 connected to the heat dissipation air duct 200, wherein an exhaust hole 110 communicating the inner container 100 and the heat dissipation air duct 200 is disposed between the inner container 100 and the heat dissipation air duct 200, the heat dissipation fan 300 operates to suck air around the inner container 100, and then discharges the air into the heat dissipation air duct 200, and the air entering the heat dissipation air duct 200 passes through the exhaust hole 110 and is discharged outside the cooking appliance; the air guide member positioned at the upper part of the exhaust hole 110 is arranged in the heat dissipation air duct 200, air passes through the upper area of the heat dissipation air duct 200 at the position of the exhaust hole 110 after being guided by the air guide member, the air is not easy to enter the inner container 100 through the exhaust hole 110, the stability of a temperature field of a cooking appliance in a cooking area is ensured, and the cooking effect of food materials is further ensured.

In addition, due to the shielding of the air guide, when the air passes through the upper area of the exhaust hole 110 of the heat dissipation air duct 200, the heat dissipation air duct 200 forms a negative pressure area in the lower area of the exhaust hole 110, so that the exhaust speed of the oil smoke or steam in the inner container 100 to the heat dissipation air duct 200 is increased, the probability that the air in the heat dissipation air duct 200 enters the inner container 100 through the exhaust hole 110 is further reduced, and the cooking effect of food materials is ensured.

It should be noted that, the cooking appliance in this embodiment may be a steam oven, an oven, or an all-in-one machine having both steam and baking functions. The present embodiment is exemplified by a steam oven and an oven together for the whole technical solution. In addition, the cooking appliance in this embodiment further includes an open door 900 for closing or opening the inner container 100, and the exhaust port 910 in the heat dissipation air duct 200 for communicating with the outside is disposed at the front of the cooking appliance, specifically, a gap formed between the door 900 and the housing above the door 900.

Specifically, the present embodiment further provides the following detailed description of the specific structure and operation process of the cooking appliance.

Referring to fig. 1, in the present embodiment, the air guiding member may be a boss 210, and the cross-sectional area of the heat dissipating air duct 200 in a partial area of the boss 210 is gradually reduced along the air flowing direction.

The air flow direction is the flow direction of the air discharged from the air outlet 910 by the heat dissipation fan 300 through the heat dissipation duct 200, and the air speed is increased when the air enters the boss 210, and then the air passes through the upper side of the air outlet 110 more quickly, so that the probability that the air enters the inner container 100 through the air outlet 110 is further reduced, and the cooking effect of the cooking area in the inner container 100 is ensured.

Referring to fig. 1, in the present embodiment, the heat dissipation air duct 200 includes a bottom plate for forming a bottom wall thereof, and the bottom plate is recessed toward the heat dissipation air duct 200 to form a boss 210.

I.e., the boss 210 is a portion of the base plate, the bottom surface of the base plate forms a recess at the boss 210 that matches the shape of the boss 210. The arrangement enables the boss 210 to be directly processed when the base plate is manufactured, the position of the boss 210 in the heat dissipation air duct 200 is more accurate, and the structure is more stable; meanwhile, the process of fixedly connecting the separate boss 210 to the bottom plate when the cooking appliance is assembled is also reduced.

Alternatively, the embodiment may also be configured such that the boss 210 is fixed to the base plate by welding.

Preferably, the surface of the boss 210 is a cambered surface, that is: in the highest position of the boss 210. Due to the arrangement, the guide effect of the boss 210 on the air flow is further ensured, and the stability of the air flow in the process is also ensured.

In this embodiment, the air guiding member may also be an air guiding plate with one end fixed on the bottom wall of the heat dissipating air duct 200, the air guiding plate is a straight plate, and the other end of the air guiding plate is inclined toward the downstream of the heat dissipating air duct 200. As long as the channel air guide is provided in such a manner that the air flow in the heat dissipation air duct 200 can be guided, the shape of the boss 210 is not limited too much in this embodiment.

Referring to fig. 1, in the present embodiment, a furnace lamp 400 connected to the heat dissipation air duct 200 is disposed above the inner container 100, the furnace lamp 400 is located between the heat dissipation fan 300 and the boss 210, a bottom plate is provided with a light hole opposite to the street lamp, a top wall of the inner container 100 is provided with a light hole area opposite to the light hole, and the furnace lamp 400 is fixed in the heat dissipation air duct 200 through the lamp holder 220.

It is specific, lamp stand 220 and heat dissipation wind channel 200's roof fixed connection, stove lamp 400 is fixed in lamp stand 220's below and is located heat dissipation wind channel 200, at specific during operation, stove lamp 400 provides the illumination for inner bag 100 through the printing opacity district, heat dissipation fan 300 is at first through stove lamp 400 place region when discharging the heat dissipation wind channel 200 with the air, and then take away the heat on stove lamp 400 surface, the completion is cooled down to it, avoid stove lamp 400 to work continuously and lead to the high temperature, also prolonged the life of stove lamp 400 when extension stove lamp 400 operating time.

Preferably, in this embodiment, the light-transmitting area at the top wall of the inner container 100 is made of glass.

Specifically, the glass material guarantees that stove lamp 400 can see through the glass of inner bag 100 roof for the illumination of inner bag 100 in, can also play thermal-insulated effect, guarantees the stability of cooking environment in the inner bag 100, guarantees the cooking effect.

In this embodiment, the cooking appliance may further include a light blocking ring 230 annularly disposed around the stove lamp 400, and the light blocking ring 230 is fixedly disposed on the bottom plate of the heat dissipating air duct 200.

Specifically, the light blocking ring 230 is a sleeve-shaped structure, the furnace lamp 400 is located in the center of the light blocking ring 230 and is spaced from the light blocking ring 230, the boss 210 and the light blocking ring 230 block the light from leaking out of the exhaust port 910 of the heat dissipation air duct 200 at the side of the furnace lamp 400 facing the boss 210, and therefore, external users are prevented from being dazzled by the light. In addition, the height of the light blocking ring 230 is ensured to be spaced from the lamp holder 220, and air blown by the heat dissipation fan 300 passes through the furnace lamp 400 through a gap formed between the lamp holder 220 and the light blocking ring 230 and continues to flow toward the boss 210.

In this embodiment, the air duct baffle 500 is rotatably disposed in the heat dissipation air duct 200 and located downstream of the exhaust hole 110, the air duct baffle 500 is provided with an air vent 510, and the air duct baffle 500 is used to adjust the ventilation area of the heat dissipation air duct 200 at the air duct baffle 500, and enable air to be exhausted only through the air vent 510.

Specifically, when the ventilation area of the air duct baffle 500 of the heat dissipation air duct 200 is the smallest, the outer edge of the air duct baffle 500 is in contact with the inner walls of the periphery of the heat dissipation air duct 200, and at this time, only the air holes 510 are communicated with the air ducts on the two sides of the air duct baffle 500. At the moment, when the steaming function of the cooking appliance is used, the steam discharge of the steam oven can be reduced, and the steam utilization rate is improved. When the baking function of the cooking appliance is used, a large amount of heat loss in the inner container 100 of the oven can be reduced when oil smoke is not generated, and the cooking effect is ensured.

It should be noted that the ventilation area in this embodiment refers to the area of the ventilation opening formed at the duct baffle 500 of the heat dissipation duct 200 in the airflow flowing direction. The ventilation opening may be composed of only the ventilation hole 510, or may be composed of the ventilation hole and a gap between the outer edge of the air duct baffle 500 and the heat dissipation air duct 200.

Referring to fig. 4 and 5, in the present embodiment, when the ventilation area of the heat dissipation air duct 200 at the air duct baffle 500 is the largest, the air duct baffle 500 is attached to the bottom plate of the heat dissipation air duct 200, and closes the exhaust hole 110.

That is, the air duct baffle 500 can reduce the ventilation area of the heat dissipation air duct 200 at the air duct baffle 500, and can also close the exhaust hole 110 by rotating, when the air duct baffle 500 directly closes the exhaust hole 110, the oil smoke or steam in the inner container 100 cannot be discharged outwards, and meanwhile, the air in the heat dissipation air duct 200 cannot enter the inner container 100 through the exhaust hole 110 to affect the cooking effect; when the air duct baffle 500 rotates to remove the closing of the exhaust holes 110, the air flow accelerated by the bosses 210 can bring the oil smoke or steam in the inner container 100 into the heat dissipation air duct 200 through the exhaust holes 110, and then the oil smoke or steam is discharged out of the cooking appliance through the vent holes 510 (or through the gap between the outer edge of the air duct baffle 500 and the inner wall of the heat dissipation air duct).

Referring to fig. 2 and 3, in this embodiment, the cooking appliance further includes a cam 700 and a motor 600 drivingly connected to the cam 700, the air duct baffle 500 is pivotally connected to the bottom plate of the heat dissipation air duct 200, the cam 700 abuts against the lower surface of the air duct baffle 500, and the cam 700 can drive the air duct baffle 500 to rotate, so as to adjust the ventilation area of the heat dissipation air duct 200 at the air duct baffle 500.

Specifically, the air duct baffle 500 may have various positions, for example, the air duct baffle 500 does not completely close the air duct baffle 500, and air may be discharged out of the cooking appliance through the air holes 510 and the gap between the outer edge of the air duct baffle 500 and the inner wall of the heat dissipation air duct 200. In this case, the oil smoke or steam can be discharged more quickly than in the case where air, oil smoke or steam is discharged only through the vent holes 510, and the heat dissipation efficiency is also higher.

Referring to fig. 2 and fig. 3, in the present embodiment, the cooking appliance further includes a travel switch 800, the motor 600 is a synchronous motor, when the ventilation area of the heat dissipation air duct 200 at the air duct baffle 500 is the smallest, the distal end of the cam 700 abuts against the air duct baffle 500, and when the ventilation area of the heat dissipation air duct 200 at the air duct baffle 500 is the largest, the distal end of the cam 700 abuts against a switch contact 810 on the travel switch 800.

When the synchronous motor is started, the rotating speeds of the synchronous motor in the same time are the same, and the position of the air duct baffle 500 can be determined through the rotating time. In practical application, a working time can be set through the rotating speed of the synchronous motor, and the air duct baffle 500 is controlled in a timing manner to completely close the exhaust holes 110 in a specific time, so that the uniformity of the temperature field of the inner container 100 is ensured, and the cooking effect is ensured; or, the air duct baffle 500 may be half-opened, so that the oil smoke or ineffective steam in the inner container 100 can be rapidly discharged into the heat dissipation air duct 200 through the exhaust holes 110; or the air duct baffle 500 is completely opened, so that the oil smoke or ineffective steam in the inner container 100 can be slowly discharged only through the vent holes 510, and meanwhile, the heat loss speed of the inner container 100 is also slowed down, and the steam utilization rate is improved.

Specifically, in the present embodiment, the opening and closing of the travel switch are realized by the abutting and separating of the cam 700 and the switch contact 810, in the process, the travel switch 800 forms two different signals, and the two signals are detected by the control program of the cooking appliance, so as to determine that the air duct baffle 500 is located at the position for closing the air outlet 110 or the position for opening the air outlet 110.

It should be noted that, in this embodiment, the cooking appliance utilizes the control program to detect the position of the air duct baffle 500 is the prior art known to those skilled in the art, and this is not improved in this embodiment, so details are not described again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The cooking appliance is characterized by comprising an inner container (100), a heat dissipation air channel (200) formed above the inner container (100) and a heat dissipation fan (300) connected with the heat dissipation air channel (200);

the inner bag (100) with be equipped with exhaust hole (110) that communicate both between heat dissipation wind channel (200), be provided with in heat dissipation wind channel (200) and be located the air guide on exhaust hole (110) upper reaches, the air guide is used for guiding radiator fan (300) exhaust air warp the top in exhaust hole (110) is discharged, and is in the below in exhaust hole (110) forms negative pressure zone.

2. The cooking appliance according to claim 1, wherein the air guide is a boss (210), and the cross-sectional area of the heat dissipation air duct (200) in a partial area of the boss (210) is gradually reduced along the air flowing direction.

3. The cooking appliance according to claim 2, wherein the heat dissipating air duct (200) comprises a bottom plate forming a bottom wall thereof, the bottom plate being recessed in a direction of the heat dissipating air duct (200) to form the boss (210).

4. The cooking appliance according to claim 2, wherein the surface of the boss (210) is a cambered surface.

5. The cooking appliance according to claim 3, wherein a stove lamp (400) connected with the heat dissipation air duct (200) is arranged above the inner container (100), the stove lamp (400) is located between the heat dissipation fan (300) and the boss (210), the bottom plate is provided with a light transmission hole opposite to the stove lamp (400), and the top wall of the inner container (100) is provided with a light transmission area opposite to the light transmission hole.

6. The cooking appliance according to claim 5, further comprising a light blocking ring (230) arranged around the stove light (400), wherein the light blocking ring (230) is fixedly arranged on the bottom plate.

7. The cooking appliance according to any of the claims 1 to 6, wherein a duct baffle (500) is rotatably disposed in the heat dissipating duct (200) downstream of the exhaust holes (110), the duct baffle (500) is provided with vent holes (510), and the duct baffle (500) is used for adjusting the ventilation area of the heat dissipating duct (200).

8. The cooking appliance according to claim 7, wherein when the ventilation area of the heat dissipation air duct (200) at the air duct baffle (500) is the largest, the air duct baffle (500) is attached to the bottom plate of the heat dissipation air duct (200) and closes the exhaust hole (110).

9. The cooking appliance according to claim 7, further comprising a cam (700) and a motor (600) in driving connection with the cam (700), wherein the air duct baffle (500) is pivotally connected to a bottom plate of the heat dissipation air duct (200), the cam (700) abuts against a lower surface of the air duct baffle (500), and the cam (700) can drive the air duct baffle (500) to rotate so as to adjust a ventilation area of the heat dissipation air duct (200) at the air duct baffle (500).

10. The cooking appliance according to claim 9, further comprising a travel switch (800), wherein the motor (600) is a synchronous motor, and when the ventilation area of the heat dissipation air duct (200) at the air duct baffle (500) is minimum, the distal end of the cam (700) abuts against the air duct baffle (500); when the ventilation area of the heat dissipation air duct (200) at the air duct baffle (500) is maximum, the distal end of the cam (700) abuts against a switch contact (810) on the travel switch (800).