CN218246908U - Embedded oven - Google Patents

Abstract

The utility model provides an embedded oven, which comprises an inner container, a door frame, a door body, a thermal circulation fan and an upper heating component, wherein the inner container is provided with a front side opening, the door frame is connected with the front side edge of the inner container, the door body can be connected to the door frame in an openable way, the door body and the inner container surround to form a cooking cavity when being closed, and the top wall of the inner container is provided with a first concave part which is concave upwards; and thermal cycle fan and last heating element all are located the top of inner bag, and go up heating element and be located thermal cycle fan's below, and thermal cycle fan's air intake and air outlet all are linked together with the culinary art cavity, and thermal cycle fan's fan subassembly is located first depressed part. The embedded oven has high heating efficiency and air circulation efficiency; the temperature of the door body and the door handle is prevented from being too high; the sanitary dead angle is not easy to cause; even if the lower heating assembly is not arranged, the thermal circulation fan can quickly form a uniform temperature field; the space of the cooking cavity is enlarged, and the cooking requirements of families of multiple people are met; avoid scraping the user when getting and putting food.

Description

Embedded oven

Technical Field

The utility model relates to the technical field of household appliances, specifically, relate to an embedded oven.

Background

The prior built-in oven usually releases heat energy through three heating pipes disposed at the upper, lower and back parts of the inner container to heat the food. The built-in ovens are usually provided with a thermal circulation fan at the back of the inner container. The thermal circulation fan forms circulation airflow in the inner container from the back to the front of the inner container and then returns to the back, so that heat in the inner container is uniformly distributed, and the temperature in the inner container gradually rises.

However, the mode that thermal cycle fan is arranged at the back that current embedded oven adopted can lead to thermal cycle's air current to blow directly to the door body, causes the door body and door handle temperature higher, and user experience feels extremely not good. In addition, the thermal cycle fan usually includes a fan guard, the edge of which is connected to the rear wall of the inner container by fasteners, and between which the fan blades of the thermal cycle fan are accommodated. But this creates an upwardly opening gap between the bottom edge of the fan guard and the rear wall of the inner container. When the embedded oven works, grease and residues on the fan blades are extremely easy to accumulate in the gap under the action of centrifugal force and cannot return to the cooking cavity, so that sanitary dead corners are formed, and the embedded oven is inconvenient for a user to clean.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems in the prior art, according to an aspect of the present invention, there is provided an embedded oven, including an inner container, a door frame, a door body, a thermal cycle fan and an upper heating assembly, wherein the inner container has a front side opening, the door frame is connected to a front side edge of the inner container, the door body is openably connected to the door frame, the door body forms a cooking cavity by surrounding with the inner container when closed, and a top wall of the inner container is provided with a first concave portion which is concave upwards; and thermal cycle fan and last heating element all are located the top of inner bag, and go up heating element and be located thermal cycle fan's below, and thermal cycle fan's air intake and air outlet all are linked together with the culinary art cavity, and thermal cycle fan's fan subassembly is located first depressed part. Through setting up thermal cycle fan and last heating element, improved the heating efficiency of embedded oven. The heat circulation fan is arranged at the top of the inner container, so that the temperature in the cooking cavity can be quickly increased; and the embedded oven has higher heating efficiency and air circulation efficiency; the temperature of the door body and the door handle on the door body is prevented from being too high, and a user touching the door body or the door handle is prevented from being scalded, so that the experience of the user is greatly improved; meanwhile, the cleaning is convenient for a user, and the sanitary dead angle is not easy to cause; in addition, even heating element under not setting up, also can accelerate the air cycle in the culinary art cavity through the hot circulating fan who sets up at the top of inner bag, play the effect of quick formation uniform temperature field. By the arrangement of the first concave part which is concave upwards, the space of the cooking cavity can be enlarged, the capacity of the embedded oven can be enlarged, and the cooking requirements of families of multiple people can be met; the first concave part can also isolate the fan assembly from other parts along the lateral direction, so that the fan assembly is isolated and protected; the fan assembly is received in the first recess to prevent a user from scraping his or her hand or food while the user is taking or placing the food.

The projection of the air inlet and the air outlet of the thermal cycle fan in the horizontal plane is at least partially covered by an area surrounded by the contour of the projection of the upper heating assembly in the horizontal plane. By this arrangement, the heating efficiency can be further improved; under the condition of realizing the same heating efficiency, the power of the thermal cycle fan and/or the heating assembly can be reduced, and the purposes of energy conservation and emission reduction are achieved; the cost of the built-in oven can be reduced, and the space of the cooking cavity is increased.

Illustratively, the upper heating assembly is located within the first recess. Through this kind of setting, can avoid taking up the effective space in the culinary art cavity, avoid getting to go up heating element scraping food or user's hand when putting food, especially when getting food, because last heating element still has higher temperature this moment, more need avoid the scraping.

Exemplarily, the fan subassembly includes fan cover and fan blade, and the fan cover includes downside cover plate and the week side cover plate that upwards extends and connect to the roof of inner bag from the downside cover plate, and the fan blade sets up between the roof of fan cover and inner bag, and the air intake of thermal cycle fan sets up on the downside cover plate, and the air outlet of thermal cycle fan sets up on week side cover plate. Through the arrangement, the structure of the built-in oven can be simplified, so that the processing cost is reduced.

Exemplarily, the embedded oven further comprises a heat dissipation channel and a heat dissipation fan, wherein a cavity air outlet is formed in the top wall of the inner container, a door frame air outlet is formed in the door frame, the heat dissipation channel is communicated between the cavity air outlet and the door frame air outlet, and an air outlet of the heat dissipation fan is communicated to the heat dissipation channel. By arranging the cavity exhaust port, the pressure of the cooking cavity and the external environment is balanced. Through this kind of setting of heat dissipation channel and door frame gas vent, can avoid scalding the user from the door frame gas vent discharge gas of front side.

Exemplarily, a motor assembly of the thermal circulation fan is located above the inner container, and the heat dissipation fan and the heat dissipation channel are both located above the inner container and located on a side surface of the motor assembly. Through the arrangement, the overall height of the built-in oven is reduced, so that the structure of the built-in oven is more compact, and a sufficiently large cooking cavity can be provided.

Illustratively, the heat dissipation channel surrounds the motor assembly, and the cooling fan is located outside the heat dissipation channel. The heat dissipation channel surrounds the motor assembly, so that the heat dissipation channel also plays a role in heat dissipation and cooling of the motor assembly. The heat dissipation fan is positioned on the outer side of the heat dissipation channel, so that the motor components of the heat dissipation fan, the heat dissipation channel and the thermal circulation fan are generally positioned in the same plane, and the overall height of the embedded oven can be further reduced.

Illustratively, the built-in oven comprises a partition plate positioned above the inner container and a cover plate arranged on the top surface of the partition plate, and the cover plate and the partition plate surround to form a heat dissipation channel. The partition plate provides an installation carrier for the components (including the cover plate) above the inner container, so that the embedded oven is produced in a modularized mode, and the assembly efficiency is improved.

Exemplarily, the cover plate is provided with a second depressed part depressed towards the cooking cavity, a motor component of the thermal cycle fan is positioned in the second depressed part, and the motor component is arranged on the cover plate and the inner container. The motor assembly is arranged in the second concave part, so that the motor assembly is more conveniently connected with the fan assembly arranged in the first concave part in a short distance, and the transmission loss of the motor assembly transmitted to the fan assembly is reduced; the height of the built-in oven in the vertical direction can be reduced, and the occupied space of the built-in oven is reduced. The motor assembly is arranged on the cover plate and the inner container, so that the rigidity of the mounting position can be improved, the vibration generated during the working of the motor assembly is reduced, and the noise is reduced.

Exemplarily, an upwardly recessed third recess is provided at the air outlet of the heat dissipation fan on the cover plate, the third recess has a third recess top surface disposed opposite to the partition plate, an outer side of the third recess top surface extends to an edge of the cover plate, the air outlet of the heat dissipation fan is inserted between the third recess top surface and the partition plate, and the third recess has a gradually decreasing cross-sectional area along the air outlet direction of the heat dissipation fan. Through the third depressed part that sets up to and the design at the edge that extends to the apron in the outside of third depressed part top surface, third depressed part top surface has covered radiator fan's air outlet, avoids the foreign object to fall into radiator fan's air outlet, has played the effect of protection, has protected radiator fan. Moreover, the gradually reduced cross-sectional area can play a role in guiding the airflow of the air outlet. Moreover, the structure can form a relatively shielded space between the air outlet of the heat dissipation fan and the heat dissipation channel, so that gas is prevented from overflowing and scattering.

Exemplarily, an upwardly recessed fourth recessed portion is provided on a region of the partition corresponding to the first recessed portion, the first recessed portion extends into the fourth recessed portion, the first recessed portion and the fourth recessed portion respectively have a first recessed portion top surface and a fourth recessed portion top surface facing the bottom wall of the inner container, and a heat insulating member is provided between the first recessed portion top surface and the fourth recessed portion top surface. With the arrangement, compared with a structure that the through holes are formed in the partition plate to avoid the top surface of the first recessed portion, the partition plate is higher in strength and can provide more stable supporting force for parts installed on the partition plate. Moreover, the first concave part can stretch into the fourth concave part, so that the partition board can be positioned quickly. Through setting up the heat insulating part, reduced the direct heat conduction of the first depressed part on the high temperature in the inner bag through the roof and conducted the baffle, avoid the baffle under permanent high temperature state and make intensity reduced. Moreover, the heat shield prevents high temperatures from being conducted through the partition to the top of the cover plate or the embedded oven, preventing the user's hands from being scalded when the user touches the top.

Illustratively, the heat dissipation fan is a direct current fan. By adopting the direct current fan as the heat dissipation fan, a large amount of installation space can be saved, and the heat dissipation power requirement of the embedded oven is also met.

The embedded oven also comprises a flow guide cover which is positioned in the heat dissipation channel and is buckled above the air outlet of the cavity, wherein the flow guide cover is provided with a through hole. Through setting up the kuppe, can carry out the drainage to cavity gas vent combustion gas, avoid gaseous directly to dash the apron. Moreover, the gas can be guided to the heat dissipation channel more quickly, and then can be discharged smoothly, and the gas is prevented from being gathered in the heat dissipation channel.

Illustratively, the upper heating assembly includes one or more of a metal dry-fire tube and a far infrared heating tube. The upper heating components in the form of the metal dry burning pipe and the far infrared heating pipe have small influence on air inlet and air outlet of the thermal circulation fan and also have high heating efficiency. Illustratively, the recessed oven also includes a lower heating assembly located at the bottom of the inner bladder. Through heating element under the setting, the high temperature that can make full use of last heating element and lower heating element produced makes the temperature of whole culinary art cavity rise fast and form even temperature field, accelerates air cycle, further accelerates to heat up. Illustratively, the back of the liner is not provided with a heating assembly. Set up the top at the inner bag with thermal cycle fan to go up heating element and set up in thermal cycle fan's below, make heating efficiency and thermal cycle efficiency all obviously promote, consequently can not set up heating element at the back of inner bag, can reduce the energy consumption from this, energy-concerving and environment-protective, but also can avoid occupying the space of culinary art cavity, make the back wall of culinary art cavity more level and more smooth, the clearance of not only being convenient for can also improve pleasing to the eye degree.

A series of concepts in a simplified form are introduced in the context of the present invention, which will be described in further detail in the detailed description section. The present disclosure is not intended to be limited to the details of construction and the arrangement of components which are essential to the practice of the invention, nor is it intended to be used as an aid in determining the scope of the practice of the invention.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a front view of a built-in oven according to an exemplary embodiment of the present invention;

fig. 2 is a top view of a built-in oven according to an exemplary embodiment of the present invention;

fig. 3A is a side cut-away view of a built-in oven according to an exemplary embodiment of the present invention;

FIG. 3B is a partial enlarged view of FIG. 3A;

fig. 4 is an exploded view of a built-in oven according to an exemplary embodiment of the present invention (door frame not shown);

fig. 5 is another exploded view of a built-in oven according to an exemplary embodiment of the present invention; and

fig. 6 is a schematic flow diagram of a circulating air flow of a recessed oven according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

1. an inner container; 11. opening the opening; 12. a first recess; 13. a cavity exhaust port; 2. a door frame; 21. a door frame exhaust port; 3. an upper heating assembly; 4. a thermal circulation fan; 401. an air inlet; 402. an air outlet; 40. a fan assembly; 41. a fan guard; 42. a fan blade; 411. a lower side cover plate; 412. a peripheral side cover plate; 44. a motor assembly; 45. a motor mounting seat; 5. a lower heating assembly; 6. a heat dissipation channel; 61. a pod; 611. a through hole; 7. a heat radiation fan; 8. a partition plate; 81. a fourth recessed portion; 82. a thermal insulation member; 9. a cover plate; 91. a second recess; 92. a third recessed portion; 10. a cooking cavity.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

The built-in toaster of the present invention will be described in detail with reference to fig. 1-6.

As shown in fig. 1 to 6, the built-in oven may include a liner 1, a door frame 2, a door body, a thermal cycle fan 4, and an upper heating assembly 3. The inner container 1 of the embedded oven is provided with a front side opening 11, and the door frame 2 is connected with the front side edge of the inner container 1. The door body is openably and closably connected to the door frame 2. The door body is not shown in the drawings for clarity of illustration of the structure within the inner container 1. Typically, the door body is pivotally connected to the door frame. The pivot for connecting the door body and the doorframe can be arranged at the top, the bottom or the side part of the doorframe. The utility model discloses do not restrict the mode of opening and shutting of the door body. When the door body is closed, the door body and the inner container 1 enclose to form a cooking cavity 10, and the cooking cavity 10 is a cavity for a user to place food to be cooked.

When the user need cook food, at first open the door body (here, the door body is in the closure state under the acquiescence normal conditions, avoids the door body to be in the interior ash that falls of cooking cavity 10 under the normally open state, also avoids the door body to open and occupies certain kitchen or environmental space), places food in cooking cavity 10, then closes the door body, opens the culinary art function of embedded oven.

The thermal circulation fan 4 and the upper heating unit 3 are both located at the top of the inner container 1, as shown in fig. 3A-3B. The upper heating assembly 3 is located below the thermal cycle fan 4. The air inlet 401 and the air outlet 402 of the heat cycle fan 4 are both communicated with the cooking cavity 10, as shown in fig. 3A-3B. When the user turns on the cooking function of the built-in oven, both the upper heating assembly 3 and the thermal cycle fan 4 start to operate. When the heat cycle fan 4 is operated, the heat cycle fan 4 sucks air at the air inlet 401 and forms a negative pressure at the air inlet 401, causing nearby hot air to be continuously sucked into the heat cycle fan 4 and then to be discharged through the air outlet 402 of the heat cycle fan 4, whereby an air flow circulating up and down is formed in the cooking cavity 10 by the heat cycle fan 4, as shown by arrows in fig. 6. Since the upper heating unit 3 is located below the heat cycle fan 4, air is heated by the upper heating unit 3 before being sucked into the air inlet 401 of the heat cycle fan 4, and is also heated again by the upper heating unit 3 after being discharged from the air outlet 402 of the upper heating unit 3, thereby improving heating efficiency.

Typically, the drop-in oven may also include a lower heating assembly 5 located at the bottom of the inner container 1, as shown in fig. 3A-3B and 4. The lower heating element 5 may be any suitable heating element such as a heating tube, a heating pan, etc. The lower heating assembly may be of the same type as or of a different type from the upper heating assembly 3. The air circulating up and down is also heated again when passing through the lower heating assembly 5, so that the high temperature generated by the upper heating assembly 3 and the lower heating assembly 5 can be fully utilized to rapidly raise the temperature of the whole cooking cavity 10 and form a uniform temperature field. And the air heated by the lower heating assembly 5 is heated to accelerate the flow of the air towards the upper heating assembly 3, thereby accelerating the air circulation and further accelerating the temperature rise. In the existing embedded oven, the heat circulation fan is arranged at the back of the inner container, so that air flow circulating back and forth can be formed in the cooking cavity only, on one hand, air heated by the back heating assembly cannot be further heated after encountering the door body, and the air flow only approaches to the outer layer air of the upper heating assembly and the lower heating assembly when flowing through the upper heating assembly and the lower heating assembly and cannot be effectively heated, so that the heating efficiency is reduced, and the temperature of the cooking cavity is slowly increased; on the other hand, the hot air heated by the lower heating unit tends to flow upward, which is not in accordance with the direction of the circulating air flow formed by the heat circulating fan, resulting in interference of the two air flows, thereby lowering the air circulation efficiency. In the case of an equivalent circulating air flow with the present application, a more powerful fan may be required. Therefore, the embedded oven provided by the application can quickly heat up the cavity, and has high heating efficiency and air circulation efficiency. It should be noted that even if the lower heating component is not provided, the heat circulation fan 4 arranged at the top of the inner container 1 can accelerate the air circulation in the cooking cavity, so as to quickly form a uniform temperature field.

Thus, in still other embodiments, the back of the recessed oven may not be provided with a heating assembly. Therefore, the energy consumption can be reduced, the embedded oven is more energy-saving and environment-friendly, the space occupied by the cooking cavity 10 can be avoided, the rear wall of the cooking cavity 10 is smoother, the cleaning is convenient, and the attractiveness can be improved.

The top thermal circulation fan 4 can rapidly convey the air heated by the upper heating assembly 3 to the whole cooking cavity 10, so that the inside of the cooking cavity 10 can be rapidly heated and a uniform temperature field is formed. Moreover, the upper and lower circulation air flows generated by the thermal circulation fan 4 can rapidly penetrate the food placed in the cooking cavity 10, and especially when the food is dispersedly placed on the grill having the holes (for example, when the food is roasted), the upper and lower parts of the food can be uniformly heated, and the cooking effect is better.

The top of inner bag 1 is arranged in to the thermal cycle fan 4 of this embedded oven, and its hot-air directly blows the bottom surface of culinary art cavity 10, and the front of non-culinary art cavity 10, directly blow the door body that is not embedded oven promptly, can avoid the door body and the doorknob on it too high temperature from this, avoid scalding the user of touching the door body or doorknob to user's experience is felt greatly promoted.

In addition, during cooking of the food, the thermal cycler 4 inevitably sucks in the fumes inside the cooking cavity 10, the grease and residues are thrown back into the cooking cavity 10 with the air flow when the thermal cycler 4 is operating and gravity can also drive them back into the cooking cavity 10. And also does not form a gap with an upward opening as in the prior art. Therefore, the cleaning is convenient for users and the sanitary dead angle is not easy to cause.

The top wall of the inner container 1 may be provided with a first recess 12 recessed upward, wherein the fan assembly 40 of the thermal cycle fan 4 may be located in the first recess 12. The top wall of the inner container 1 is provided with a first concave portion 12 which is concave upwards, and the opening of the first concave portion 12 faces the cooking cavity 10. First depressed part 12 can enlarge the space of culinary art cavity 10, and fan subassembly 40 installs and can need not to occupy the cavity space of placing food of culinary art cavity 10 in first depressed part 12, and then has enlarged the food volume that culinary art cavity 10 single can be placed, has enlarged the capacity of embedded oven in other words, can satisfy the culinary art demand of many people family. The side walls of the first recess 12 may also isolate the fan assembly 40 from other components in the lateral direction. That is, the bottom wall and the side wall of the first recess 12 may also form a rear cover of the fan assembly 40. Moreover, the housing of the fan assembly 40 in the first recess 12 also prevents a user from scraping his or her hands or food while accessing the food.

For example, only one first recess 12 may be disposed on the top wall of the liner 1, and one or more thermal cycle fans 4 may be disposed in the first recess 12. Of course, two or more first recesses 12 may be provided on the top wall of the inner container 1, and one or more thermal cycle fans 4 may be provided in each first recess 12. For example, two first concave portions 12 that are concave upwards may be disposed on the top wall of the inner container 1, each first concave portion 12 is provided with a thermal circulation fan 4, one first concave portion 12 opens into the left half space of the cooking cavity 10, and the other first concave portion 12 opens into the right half space of the cooking cavity 10.

Illustratively, the central axis of the fan assembly 40 may pass through the center of the cooking cavity 10, which may form a uniform circulating airflow around the vertical centerline of the cooking cavity 10. Thereby, a uniform temperature field can be formed, thereby uniformly heating the food.

According to some exemplary embodiments of the present invention, the area surrounded by the contour of the projection of the upper heating assembly 3 in the horizontal plane may at least partially cover the projection of the air inlet 401 and the air outlet 402 of the thermal cycle fan 4 in the horizontal plane. The thermal cycler blower 4 may be positioned within a projection of the upper heating assembly 3 on the top wall of the liner 1 such that the upper heating assembly 3 substantially covers the air inlet 401 and the air outlet 402 of the thermal cycler blower 4 when the top wall of the liner 1 is viewed from the front side opening 11. In actual production, however, the upper heating assembly 3 basically employs a curved heating tube to allow airflow to pass through the heating tube into the intake vent 401 and out of the exhaust vent 402. That is, the heating pipes are spaced from the side walls of the inlet port 401 and the outlet port 402, so that the coverage mentioned herein refers to that the area enclosed by the projected outline of the upper heating assembly 3 in the horizontal plane (which can be understood as the maximum area enclosed by the boundary points on the projected outline, not only the projected geometric figure) can cover the projection of the inlet port 401 and the outlet port 402 of the heat cycle fan 4 in the horizontal plane, but not the upper heating assembly 3 completely shields the heat cycle fan 4. Because the upper heating element 3 covers the air inlet 401 and the air outlet 402 of the thermal cycle fan 4, air can be sufficiently heated before entering the thermal cycle fan 4 from the air inlet 401 of the thermal cycle fan 4, and the air can be sufficiently heated for the second time by the upper heating element 3 when being discharged from the air outlet 402 of the thermal cycle fan 4, thereby further improving the heating efficiency. Under the condition of realizing the same heating efficiency, the power of the thermal cycle fan 4 and/or the heating assembly can be reduced, and the purposes of energy conservation and emission reduction are achieved. The heating assembly referred to herein refers to all heating assemblies used in the built-in oven, and may include the upper heating assembly 3, and may further include the lower heating assembly 5 and/or the back heating assembly as needed. In this embodiment, one or more of the heating assemblies are allowed to be powered down. This further allows for the use of smaller volume and power rating heating assemblies and/or thermal cycle fans, which may reduce the cost of the drop-in oven and increase the space of the cooking cavity 10.

Illustratively, the upper heating assembly 3 may include one or more of a metal dry-fire tube and a far infrared heating tube.

The metal dry burning pipe is made of metal materials, and the metal resistance wires generate heat and transmit the heat to air, so that the temperature of a heated medium rises. The common metal dry burning pipe is a stainless steel heating pipe. The stainless steel heating pipe has the advantages of good heat-conducting property, corrosion resistance, high heat efficiency, difficult damage, long service life, small volume and high cost performance. The stainless steel heating pipe is usually treated by a blackening or bluing technology, and then a layer of blue passive film is formed on the surface of the stainless steel heating pipe.

The far infrared heating tube is also called a far infrared radiation electric heating tube or an infrared radiation heating tube for short, and is equipment which generates infrared radiation energy with certain wavelength after being electrified so as to heat an object. The far infrared heating tube is usually made of a filament radiator made of high temperature resistant rare metal, which is wound by a special process and then sealed in a special transparent quartz glass bulb, and then the bulb is vacuumized and filled with inert mixed gas. The working principle is as follows: when current passes through the heating wire of the heating tube made of special material, the heating tube can radiate infrared rays with certain wavelength, and when the infrared rays are absorbed by an object, the object is heated. The far infrared heating pipe has the remarkable characteristics of high strength, high heat efficiency, high penetrability and low energy consumption. The far infrared heating pipe is used as a heating element, so that the working efficiency of the embedded oven can be greatly improved, the heating period is shortened, the heating energy is saved, and the production cost is reduced. In addition, the infrared radiation heating technology of the far infrared heating pipe has no pollution to heated food or environment, and is a green element.

Note that the tube shape of the upper heating unit 3 is not limited to the shape of fig. 5. The pipe type of the upper heating assembly 3 can be a straight pipe, an M-shaped pipe, a U-shaped pipe, a multi-fold pipe or an irregular pipe, etc. The upper heating elements 3 of different tube types have different material amounts and different heating efficiencies, and accordingly, the cooking speeds of the corresponding built-in ovens for food are different. The shape of the upper heating element 3 can be configured according to specific requirements.

In other exemplary embodiments, the upper heating element 3 may also be located in the first recess 12. Thereby, it is possible to avoid taking up space in the cooking cavity 10 and to avoid the upper heating element 3 scraping food or the user's hand when picking up food, especially when picking up food, since the upper heating element 3 also has a higher temperature at this time, which is more desirable.

In other exemplary embodiments, the upper heating element 3 may be located at the top of the inner container 1 but not in the first concave portion 12, which is equivalent to the uppermost portion of the cooking space of the cooking cavity 10, so as to heat the air in the cooking cavity 10 in a short distance.

According to some exemplary embodiments of the present disclosure, fan assembly 40 may include a fan guard 41 and a fan blade 42. The fan blades 42 are arranged between the fan cover 41 and the top wall of the liner 1. That is, the top wall of the inner container 1, the fan blades 42 and the fan cover 41 are arranged in sequence from top to bottom in relative positions of the three. Both the top wall of the inner container 1 and the fan guard 41 form a mixing chamber, providing a space for mixing the air flow for the thermal cycle fan 4. In some embodiments, the fan guard 41 may include a lower shroud plate 411 and a peripheral shroud plate 412, wherein the peripheral shroud plate 412 may extend upwardly from the lower shroud plate 411 and connect to the top wall of the liner 1. The lower cover 411 may be a circular cover or a plate cover having another shape. The lower cover 411 may have a planar shape or a slight curvature, which is not limited herein. As shown in fig. 6, the typical heat cycle fan 4 is operated to suck air from below and discharge it from the circumferential direction. The intake port 401 of the heat cycle fan 4 may be provided on the lower side cover plate 411, and the exhaust port 402 of the heat cycle fan 4 may be provided on the peripheral side cover plate 412. The peripheral side plate 412 and the lower side plate 411 are fixedly connected to each other at their outer edges. The peripheral skirt 412 may be annular in shape. The peripheral skirt 412 may be linear, z-shaped or have a cross-section

Shape, etc. One end of the peripheral side cover plate 412 is fixedly connected to the outer edge of the lower side cover plate 411, and the other end is fixedly connected to the top wall of the inner container 1. The fan blades 42 are located in the space formed by the fan cover 41 and the top wall of the inner container 1, and the space is the mixing cavity described above. The fan guard 41 may be an integrally formed sheet metal part. The fan guard 41 and the top wall of the inner container 1 (i.e., the peripheral side cover plate 412 and the top wall of the inner container 1) may be connected by a screw fastener, a pin, or by welding. The structure of the embedded oven can be simplified by the fan cover 41 and the top wall of the inner container 1 enclosing to form a mixing cavity for accommodating the fan blades 42, so that the processing cost is reduced.

In order to equalize the pressure of the cooking chamber 10 with the external environment, a chamber exhaust port 13 may be provided on the top wall of the inner container 1, as shown in fig. 3A-3B and 5. In this case, the door frame 2 may be provided with a door frame exhaust port 21, as shown in fig. 1 and 5, and the heat dissipation path 6 communicates between the chamber exhaust port 13 and the door frame exhaust port 21, as shown in fig. 3A to 3B. In addition, the built-in oven may further include a heat dissipation fan 7, as shown in fig. 4. An air outlet of the heat radiation fan 7 is communicated to the heat radiation channel 6. During operation of the built-in oven, the gas with higher temperature inside the cooking cavity 10 can be exhausted through the cavity exhaust port 13, the heat dissipation channel 6 and the door frame exhaust port 21 in sequence. The heat radiation fan 7 can cool the high-temperature gas of the heat radiation channel 6, thereby preventing the gas discharged from the door frame exhaust port 21 on the front side from scalding the user. The air inlet of the heat dissipation fan 7 may be communicated with the outside, for example, disposed at the side of the heat dissipation fan 7, and sucks cold air from above the inner container 1.

Illustratively, the door frame exhaust port 21 may be provided at an upper edge or a lower edge or a side edge of the door frame 2. Typically, the gas in the cooking cavity 10 is vented from the front of the built-in oven, preventing steam from entering the cabinet and reducing the service life of the cabinet.

In some exemplary embodiments, the motor assembly 44 of the thermal cycler 4 may be located above the liner 1. The heat dissipation fan 7 and the heat dissipation channel 6 may be both located above the inner container 1 and located at the side of the motor assembly 44. By disposing the heat dissipation fan 7 and the heat dissipation passage 6 at the side of the motor assembly 44 of the thermal cycle fan 4, the overall height of the built-in oven can be reduced and the structure of the built-in oven can be made more compact, whereby a sufficiently large cooking cavity 10 can be provided.

In some exemplary embodiments, the heat dissipation channel 6 may surround the motor assembly 44, and the heat dissipation fan 7 is located outside the heat dissipation channel 6. The motor assembly 44 also generates heat during operation. The heat dissipation channel 6 surrounds the motor assembly 44, and the heat dissipation channel 6 can take away part of heat of the motor assembly 44, so that the heat dissipation channel also plays a role in heat dissipation and temperature reduction for the motor assembly 44. The positioning of the heat dissipation fan 7 outside the heat dissipation channel 6 allows the heat dissipation fan 7, the heat dissipation channel 6 and the motor assembly 44 of the thermal cycling fan 4 to be positioned substantially in the same plane, thereby further reducing the overall height of the built-in oven.

According to some exemplary embodiments of the present invention, the recessed oven may include a partition 8 located above the inner container 1 and a cover plate 9 installed on a top surface of the partition 8, the cover plate 9 and the partition 8 enclosing to form the heat dissipation channel 6, see fig. 3A-3B and fig. 5 in combination. Illustratively, the partition plate 8 may be located between the cover plate 9 and the liner 1, and the partition plate 8 and the cover plate 9 may be connected by any suitable means such as a snap, a fastener connection, or a welding. The diaphragm 8 and the cover plate 9 may be sealingly connected at the connection. The partition plate 8 can be provided with an interface communicated with the cavity exhaust port 13, and the partition plate 8 can be used as a mounting carrier of the cavity exhaust port 13. The partition plate 8 and the cover plate 9 may be provided with an opening at a joint of certain end portions, and the opening is communicated with an air outlet of the heat dissipation fan 7. In general, the recessed oven is provided with a partition plate 8, and the partition plate 8 can be used as a mounting carrier for components (including a cover plate 9) above the inner container 1, and all the components can be mounted on the partition plate 8, so that the recessed oven can be produced in a modularized mode, and the assembly efficiency is improved.

According to some exemplary embodiments of the present invention, the cover plate 9 is provided with a second recess 91 recessed toward the cooking cavity 10, as shown in fig. 3A-3B and 5, the motor assembly 44 of the thermal circulation fan 4 is located in the second recess 91, and the motor assembly 44 is installed on the cover plate 9 and the inner container 1. Illustratively, the motor assembly 44 can be mounted on the cover plate 9 and the liner 1 via a motor mount 45 (shown in fig. 2). Through holes can be arranged at corresponding positions on the partition plate 8 to allow the cover plate 9 to be contacted with the inner container 1. The second recess 91 is provided for fixing the motor mounting seat 45 of the motor assembly 44, and the motor is mounted on the second recess 91. Moreover, the second recess 91 is recessed toward the cooking cavity 10, which further facilitates the motor assembly 44 to be connected with the fan assembly 40 disposed in the first recess 12 in a short distance, and reduces the transmission loss of the motor assembly 44 to the fan assembly 40. Here, it can also be understood that the lowest position of the second concave portion 91 can abut against the highest position of the upwardly concave first concave portion 12, so that the height of the built-in oven in the vertical direction can be reduced, and the occupied space of the built-in oven is reduced; and the motor assembly 44 is arranged on the cover plate 9 and the inner container 1, so that the rigidity of the installation position can be improved, and the vibration generated when the motor assembly 44 works is reduced, thereby reducing the noise.

In the above description of the fan assembly 40 of the heat cycle fan 4, the fan blades 42, the top wall of the liner 1, the fan blades 42, and the fan cover 41 are sequentially arranged from top to bottom in the positional relationship between the fan blades 42, the liner 1, and the fan cover 41. The related positional relationship will be described again with reference to the motor assembly 44, and the motor assembly 44, the cover plate 9, and the top wall of the inner container 1 are sequentially arranged from top to bottom, specifically, the motor mounting seat 45 is connected to the bottom wall of the second recess 91 of the cover plate 9 and the top wall of the inner container 1 at the same time by screws.

Illustratively, as shown in fig. 3A-3B, the recessed oven may include a deflector 61. The air guide sleeve 61 can be positioned in the heat dissipation channel 6 and buckled right above the cavity exhaust port 13. The pod 61 may have a through hole 611. It is understood that the through hole 611 may communicate with the heat dissipation channel 6. The structure of the air guide sleeve 61 may be various, such as an inverted V-shaped structure, an inverted U-shaped structure, an inverted trapezoid structure, etc., which is not limited herein. The dome 61 is fastened over the chamber exhaust 13. The way in which the pod 61 is mounted may vary. For example, the air guide sleeve 61 may be fixed in the heat dissipation channel 6 by a fastening member, welding, adhesion, or the like. The number of the through holes 611 may be one or more, and is not limited herein. When the number of the through holes 611 is plural, it may be disposed on one side of the pod 61, or may be disposed on both sides of the pod 61. Through setting up kuppe 61, can carry out the drainage to cavity gas vent 13 combustion gas, avoid gaseous directly to dash apron 9. Moreover, the gas can be guided to the heat dissipation channel 6 more quickly, and then can be discharged smoothly, and the gas is prevented from being gathered in the heat dissipation channel 6.

For example, as shown in fig. 3A-3B to fig. 6, an upwardly concave third concave portion 92 may be provided on the cover plate 9 at the air outlet of the heat dissipation fan 7. The third recess 92 has a third recess top surface. The top surface of the third recess is located opposite the partition 8. The outer side of the top surface of the third recess may extend to the edge of the cover plate 9. An air outlet of the heat dissipation fan 7 can be inserted between the top surface of the third recessed part and the partition plate. The third recess 92 has a gradually decreasing cross-sectional area in the air outlet direction of the heat dissipation fan 7. Through the third depressed part 92 of above-mentioned setting to and the design that the outside of third depressed part top surface extends to the edge of apron 9, the third depressed part top surface has covered radiator fan 7's air outlet, avoids the foreign object to fall into radiator fan 7's air outlet, has played the effect of protection, has protected radiator fan 7. Moreover, the gradually reduced cross-sectional area can play a role in guiding the airflow of the air outlet. Moreover, the structure can form a relatively shielded space between the air outlet of the heat dissipation fan 7 and the heat dissipation channel 6, so that gas is prevented from overflowing and scattering.

Illustratively, as shown in fig. 3A-3B to 5, the partition 8 may be provided with a fourth recess 81 recessed upward on a region corresponding to the first recess 12. The first recess 12 may protrude into the fourth recess 81. The first recess 12 has a first recess top surface facing the bottom wall of the inner bladder. The fourth recess 81 has a fourth recess top surface facing the bottom wall of the inner bladder. A thermal insulator 82 may be disposed between the first and fourth recess top surfaces. The insulation 82 may be of insulating cotton or the like. With such an arrangement, compared with a structure that the through holes are arranged on the partition plate 8 to avoid the top surface of the first concave part, the partition plate 8 has higher strength, and can provide more stable supporting force for the parts mounted on the partition plate. Moreover, the first recess 12 can extend into the fourth recess 81, which is more advantageous for quickly positioning the partition plate 8. Through setting up heat insulating part 82, reduced the direct heat conduction of high temperature in inner bag 1 through first depressed part 12 on the roof to baffle 8, avoided baffle 8 to make under permanent high temperature state and reduced intensity. Moreover, the thermal insulation 82 prevents high temperatures from being conducted through the partition 8 to the cover plate 9 or the top of the built-in oven, and prevents the user's hands from being scalded when the user touches the top.

Because the conventional embedded oven usually adopts the cross-flow fan as a fan for heat dissipation, and the impeller of the cross-flow fan is a long cylindrical fan impeller, the diameter of the impeller is large, so that the cross-flow fan occupies a large space, and the top of the inner container of the conventional embedded oven is not provided with a redundant space for arranging other structures. In some exemplary embodiments, the heat dissipation fan 7 may be a direct current fan. The direct current fan is adopted as the heat dissipation fan 7, so that a large amount of installation space can be saved, and the heat dissipation power requirement of the embedded oven is also met. Furthermore, it should be noted that although the above description refers to the thermal cycle fan and heating assembly operating simultaneously, this may be part of the cooking mode of the built-in oven, such as baking, air frying, etc. In other embodiments, only the heating assembly may be operated alone, which may be for steaming, baking, etc.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For ease of description, relative terms of regions such as "above … …", "above … …", "above … … upper surface", "above", etc. may be used herein to describe the regional positional relationship of one or more components or features to other components or features shown in the figures. It is understood that relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations in use or operation. For example, if an element in the figures is turned over in its entirety, elements "above" or "over" other elements or features would include elements "below" or "beneath" other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (12)

1. An embedded oven is characterized by comprising an inner container, a door frame, a door body, a heat circulating fan and an upper heating component, wherein,

the inner container is provided with a front side opening, the door frame is connected with the front side edge of the inner container, the door body is connected to the door frame in an openable and closable manner, the door body and the inner container surround to form a cooking cavity when being closed, and the top wall of the inner container is provided with a first concave part which is concave upwards; and is

The hot circulating fan and the upper heating assembly are located at the top of the inner container, the upper heating assembly is located below the hot circulating fan, an air inlet and an air outlet of the hot circulating fan are communicated with the cooking cavity, and a fan assembly of the hot circulating fan is located in the first recessed portion.

2. The built-in oven of claim 1, wherein an area enclosed by a contour of a projection of the upper heating assembly in a horizontal plane at least partially covers a projection of the air inlet and the air outlet of the thermal cycle fan in the horizontal plane.

3. The built-in oven of claim 1, wherein the upper heating assembly is located within the first recess.

4. The drop-in oven of claim 1, wherein the fan assembly comprises a fan guard and a fan blade, the fan guard comprising a lower shroud and a peripheral shroud extending upwardly from the lower shroud and connected to the top wall of the liner, the fan blade disposed between the fan guard and the top wall of the liner, the inlet of the thermal cycle fan disposed on the lower shroud, and the outlet of the thermal cycle fan disposed on the peripheral shroud.

5. The built-in oven of claim 1, further comprising a heat dissipation channel and a heat dissipation fan, wherein a cavity air outlet is formed on the top wall of the inner container, a door frame air outlet is formed on the door frame, the heat dissipation channel is communicated between the cavity air outlet and the door frame air outlet, and an air outlet of the heat dissipation fan is communicated to the heat dissipation channel.

6. The built-in oven of claim 5, wherein a motor assembly of the thermal cycle fan is positioned above the inner container, and the heat dissipation fan and the heat dissipation channel are both positioned above the inner container and at a side of the motor assembly.

7. The built-in oven of claim 6, wherein the heat dissipation channel surrounds the motor assembly, and the heat dissipation fan is located outside the heat dissipation channel.

8. The built-in oven of claim 5, wherein the built-in oven comprises a partition plate positioned above the inner container and a cover plate mounted on a top surface of the partition plate, the cover plate and the partition plate enclosing to form the heat dissipation channel.

9. The built-in oven of claim 8, wherein the cover plate is provided with a second recess portion recessed toward the cooking cavity, a motor assembly of the thermal cycle fan is located in the second recess portion, and the motor assembly is mounted on the cover plate and the inner container.

10. The built-in oven of claim 8,

an upwardly concave third concave part is arranged on the cover plate and at the air outlet of the heat dissipation fan, the third concave part is provided with a third concave part top surface opposite to the partition plate, the outer side of the third concave part top surface extends to the edge of the cover plate, the air outlet of the heat dissipation fan is inserted between the third concave part top surface and the partition plate, and the third concave part has a gradually reduced cross sectional area along the air outlet direction of the heat dissipation fan; and/or

The baffle with be equipped with the fourth depressed part of upwards sunken on the region that first depressed part corresponds, first depressed part stretches into in the fourth depressed part, first depressed part with the fourth depressed part has respectively and faces the first depressed part top surface and the fourth depressed part top surface of the diapire of inner bag, first depressed part top surface with be equipped with heat insulating part between the fourth depressed part top surface.

11. The built-in oven of claim 5,

the heat dissipation fan is a direct current fan; and/or

The embedded oven also comprises a flow guide cover, wherein the flow guide cover is positioned in the heat dissipation channel and is buckled above the cavity exhaust port, and the flow guide cover is provided with a through hole.

12. The built-in oven of claim 1,

the upper heating component comprises one or more of a metal dry burning pipe and a far infrared heating pipe; and/or

The embedded oven also comprises a lower heating component positioned at the bottom of the inner container; and/or

The back of the inner container is not provided with a heating component.

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