CN111096687B

CN111096687B - Embedded oven

Info

Publication number: CN111096687B
Application number: CN201811251759.1A
Authority: CN
Inventors: 罗灵; 杨均; 曹骥
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-10-25
Filing date: 2018-10-25
Publication date: 2023-02-28
Anticipated expiration: 2038-10-25
Also published as: CN111096687A

Abstract

The invention relates to an embedded oven, which comprises a door body and an oven body, wherein the door body comprises outer glass and middle glass arranged behind the outer glass, a ventilation gap is reserved between the outer glass and the middle glass, the bottom of the oven body is provided with an air flow channel, the air flow channel comprises a cold air branch channel and a hot air branch channel, the cold air branch channel is communicated with the ventilation gap, and the hot air branch channel is downward communicated with the front lower part of the oven body. The invention can fully cool the door body through the cold air branch channel, and avoids the phenomenon that the used oven door body is too high in temperature and scalds hands. In addition, embedded oven generally inlays the dress in the below of cupboard, and the hot-blast branch road in the air current passageway leads to the preceding below of box down to dry to the ground of below before the oven, prevent that moist ground from making the oven rust and influence its life, also can avoid bacterial growing simultaneously, guarantee oven service environment's security.

Description

Embedded oven

Technical Field

The invention relates to the field of household cooking devices, in particular to an embedded oven.

Background

An oven is a common cooking device in modern kitchens and can be used for roasting chicken, duck, bread, pastry and the like. When the oven normally works, the highest temperature of the outer side of the oven door glass can reach about 80 ℃, an adult can feel that the outer side of the door body is scalded by touching the door body with hands, and the main reason of the rise of the temperature of the oven door body is as follows: when the oven works, the heat of the heating pipe is radiated to the inner cavity of the oven, and the air heat of the inner container is transferred and radiated to the door body of the oven, so that the temperature of the door body of the oven is increased. Generally, in the prior art, an oven door body structure is improved, so that the temperature of a door body in the working process of an oven is reduced, for example, a Chinese patent with the application number of 201810015597.5 (the application publication number of CN 107997620A) discloses a door body structure, which comprises a door body with a cavity inside, wherein an air inlet and an air outlet are formed in the door body, so that heat inside an oven liner can be radiated and taken away, and cold air on the periphery of the oven can be sucked into the door body, and thus, the double cooling of the oven door body is realized. However, the process difficulty of providing the air inlet and the air outlet on the oven door body is high, which is inconvenient to process and manufacture, and the air inlet and the air outlet cannot be too large, because the too large opening on the door body affects the basic function of the door body, and the too small air inlet and air outlet have limited heat dissipation effect on the oven door body. In addition, in the working process of the oven, the temperature of the air at the periphery of the oven body is increased due to heat transfer, so that the cooling effect of the external air entering through the air inlet on the door body is poor.

In addition, embedded oven is generally placed in the lower-most portion of cupboard, because the needs of cooking operation, the ground of kitchen is generally more moist, especially the ground of oven below department, is difficult to clear up when daily cleaning, and the oven is placed in this kind of environment for a long time, not only can lead to the box to rust and influence the life of oven, and the bacterium is bred easily in moist environment moreover to when using the oven to toast the operation, toast food and have the risk of being polluted by the bacterium.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide an embedded oven with good cooling effect on a door body aiming at the prior art.

The second technical problem to be solved by the present invention is to provide a built-in oven capable of drying the floor of a kitchen.

The technical scheme adopted by the invention for solving the technical problems is as follows: the embedded oven is characterized in that the door body comprises outer glass and middle glass arranged behind the outer glass, a ventilation gap is reserved between the outer glass and the middle glass, an air flow channel is arranged at the bottom of the oven body and comprises a cold air branch channel and a hot air branch channel, wherein the cold air branch channel is communicated with the ventilation gap, and the hot air branch channel is communicated with the front lower part of the oven body downwards.

In order to realize smooth air outlet of the cold air branch passage and the hot air branch passage, a fan and a refrigeration assembly are arranged in the air flow passage, the fan is positioned at one end of the air flow passage, the air outlet of the fan can enter the cold air branch passage and the hot air branch passage through air inlets of the cold air branch passage and the hot air branch passage respectively, the refrigeration assembly comprises a cold end and a hot end, wherein the cold end can refrigerate the air in the cold air branch passage, and the hot end can heat the air in the hot air branch passage. Set up refrigeration assembly and make airflow channel inner structure succinct, can utilize the heat that its hot junction produced to heat the air of hot-blast branch road when the air of cooling cold wind branch road, can not only avoid the influence of the heat that produces in refrigeration assembly work to oven self performance, can reduce the waste of efficiency moreover.

Further, in order to make the structure of the air flow channel more simple, the air flow channel is transversely arranged at the bottom of the box body, one end of the air flow channel is an inlet, the fan is arranged on the air flow channel, the other end of the air flow channel is an outlet, a partition plate is transversely arranged in the air flow channel and divides the air flow channel into the cold air branch channel and the hot air branch channel from top to bottom, the inlet is divided into two parts from top to bottom, the two parts are respectively an air inlet of the cold air branch channel and an air inlet of the hot air branch channel, the outlet is divided into two parts from top to bottom, the two parts are respectively an air outlet of the cold air branch channel and an air outlet of the hot air branch channel, the refrigerating assembly is arranged on the partition plate, the cold end of the refrigerating assembly is positioned in the cold air branch channel, and the hot end of the refrigerating assembly is positioned in the hot air branch channel. The installation of the refrigeration assembly can be well realized through the partition plate, and meanwhile, the hot end of the refrigeration assembly is positioned in the hot air branch passage, and the cold end of the refrigeration assembly is positioned in the cold air branch passage.

Still further, the refrigeration subassembly is the semiconductor refrigeration piece, and the semiconductor refrigeration piece inlays and is adorned in the through-hole of seting up in the baffle, and the cold end of this semiconductor refrigeration piece faces cold wind branch way, and the hot junction faces hot-blast branch way. The planar cold end and the hot end can better heat or cool the air in the corresponding branch passage, thereby improving the cooling efficiency of the cold air branch passage and the heating efficiency of the hot air branch passage.

In order to avoid the influence of the heat transfer between the hot air branch passage and the cold air branch passage through the partition plate on the heating efficiency and the cooling efficiency of the hot air branch passage and the cold air branch passage, one preferred implementation mode is as follows: the baffle adopts thermal-insulated material, for example: the pp is reinforced by plastic nylon glass fiber.

Another preferred implementation is: the refrigeration assembly is arranged at one end, close to an outlet of the airflow channel, of the partition plate, so that air in the hot air branch channel is heated and guided into the ventilation gap after encountering the hot end of the refrigeration assembly, and air in the cold air branch channel is cooled and guided to the front lower part of the box body after encountering the cold end of the refrigeration assembly, heat transfer between hot air in the hot air branch channel and cold air in the cold air branch channel through the partition plate is avoided, and energy efficiency waste of the refrigeration assembly can be avoided.

For the convenience to control refrigeration assembly, the semiconductor refrigeration piece is two at least, and each semiconductor refrigeration piece can open and close respectively. Therefore, the opening and closing of each semiconductor refrigerating sheet can be controlled as required, for example, when all semiconductor refrigerating sheets are closed, the door body can be cooled through the air outlet of the fan (the cooling efficiency is lower than that of the cold air branch channel), when a certain number of semiconductor refrigerating sheets are opened as required, the cold end cools the air in the cold air branch channel and cools the door body, and the hot end heats the air in the hot air branch channel and dries the ground below the front part.

In order to better realize the arrangement of the airflow channel structure, an air guide cover is transversely arranged below a bottom plate of the box body, the air guide cover and the bottom surface of the bottom plate are surrounded to form the airflow channel, an air guide plate is sealed on the outlet, a flow guide gap communicated with the ventilation gap is reserved between the upper end of the air guide plate and the front end part of the bottom plate, the front end edges of the partition plate and the air guide cover are abutted against the air guide plate, and a vent hole is distributed at the air guide plate corresponding to an air outlet of the hot air branch channel. The cold air in the hot air branch channel can be guided into the ventilation gap through the flow guide gap, and the ventilation holes in the air guide plate can guide the cold air in the hot air branch channel to the ground below the front part of the oven.

For the cold air direction ventilation clearance in can more high-efficient with cold wind branch road, the front end of baffle and the corresponding department tilt up of above-mentioned water conservancy diversion gap.

In order to guide the hot air in the hot air branch channel to the ground in front and below the box body more efficiently, the bottom wall of the air guide cover is downwards inclined from the middle part of the air guide cover.

Further, the bottom of bottom plate is provided with rather than assorted base, and this base includes lower plate, left side board, right side board and dorsal scale board, and this lower plate is parallel with above-mentioned bottom plate and is located the below of this bottom plate, and above-mentioned left side board, right side board and dorsal scale board enclose to be established between bottom plate and lower plate, and above-mentioned aviation baffle seals establishes in the front side of bottom plate and lower plate, and above-mentioned airflow channel sets up in the space that base and bottom plate enclose, and has laid the bleeder vent on above-mentioned left side board, right side board and the dorsal scale board respectively.

Compared with the prior art, the invention has the advantages that: the bottom of oven box is provided with airflow channel, and the cold wind branch road in this airflow channel accesss to the ventilation clearance in the door body to can carry out abundant effectual cooling to the door body, the oven door body high temperature of avoiding finishing using and scald one's hand. In addition, embedded oven generally inlays the dress in the lower part of cupboard, and the hot-blast branch road in the air current passageway leads to the front lower place of box down to dry to the ground of oven front lower place, prevent that moist ground from making the oven rust and influence its life, also can avoid bacterial growing simultaneously, guarantee oven service environment's security.

Drawings

FIG. 1 is a schematic structural diagram of a built-in oven according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

FIG. 3 isbase:Sub>A cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic view of a portion of a built-in toaster according to an embodiment of the present invention;

FIG. 5 is a partial exploded view of the partial structure of FIG. 4;

fig. 6 is a partial structural view of an airflow passage according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following examples of the drawings.

As shown in fig. 1 to 6, the built-in oven comprises a door body 2 and an oven body 1, wherein the door body 2 comprises an outer glass 21 and an intermediate glass 22 arranged behind the outer glass 21, and a ventilation gap 20 is reserved between the outer glass 21 and the intermediate glass 22. The bottom of the bottom plate 11 of the box body 1 is provided with a base 3 matched with the bottom plate 11, the base 3 comprises a lower bottom plate 31, a left side plate 32, a right side plate 33 and a back side plate 34, the lower bottom plate 31 is parallel to the bottom plate 11 and is positioned below the bottom plate 11, the left side plate 32, the right side plate 33 and the back side plate 34 are enclosed between the bottom plate 11 and the lower bottom plate 31, the front sides of the bottom plate 11 and the lower bottom plate 31 are sealed with air guide plates 4, and air holes 35 are respectively distributed on the left side plate 32, the right side plate 33 and the back side plate 34.

An air flow channel 6 is arranged in a space 30 enclosed by the base 3 and the bottom plate 11, the air flow channel 6 includes a cold air branch channel 61 and a hot air branch channel 62, wherein the cold air branch channel 61 leads to the ventilation gap 20 and is discharged from the top end of the ventilation gap 20, and the hot air branch channel 62 leads downwards to the front lower part of the box body 1. Therefore, the door body 2 can be fully cooled through the cold air branch channel 61, and the oven door body 2 which is used completely is prevented from being too hot to scald hands. In addition, embedded oven generally inlays the dress in the lower-most portion of cupboard, and hot-blast branch way 62 among the air current passageway 6 leads to the front lower place of box 1 downwards to dry the ground of oven front lower place, prevent that moist ground from making the oven rust and influence its life, also can avoid bacterial growing simultaneously, guarantee oven service environment's security.

In order to realize smooth air outlet of the cold air branch passage 61 and the hot air branch passage 62, a fan 5 and a refrigeration assembly 8 are arranged in the air flow passage 6, the fan 5 is located at one end of the air flow passage 6, and the outlet air of the fan 5 can enter the cold air branch passage 61 and the hot air branch passage 62 through air inlets of the cold air branch passage 61 and the hot air branch passage 62 respectively, the refrigeration assembly 8 comprises a cold end 81 and a hot end 82, wherein the cold end 81 can refrigerate the air in the cold air branch passage 61, and the hot end 82 can heat the air in the hot air branch passage 62. Set up refrigeration subassembly 8 and make airflow channel 6 inner structure succinct, can utilize the heat that its hot junction 82 produced to heat hot-blast air branch 62's air when cooling cold wind branch 61's air, can not only avoid the influence of the heat that refrigeration subassembly 8 produced in the work to the oven performance, can reduce the waste of efficiency moreover. In addition, in the embodiment, the fan 5 is a cross-flow fan, and the air holes 35 can provide an air source for the operation of the fan 5.

Further, the structure of the air flow channel 6 is more simplified, the air flow channel 6 is horizontally disposed at the bottom of the box body 1, one end of the air flow channel 6 is an inlet 601 and the fan 5 is disposed thereon, the other end of the air flow channel is an outlet 602, a partition 63 is horizontally disposed in the air flow channel 6, the partition 63 vertically partitions the air flow channel 6 into the cold air branch channel 61 and the hot air branch channel 62, and vertically partitions the inlet 601 into two parts, which are respectively air inlets of the cold air branch channel 61 and the hot air branch channel 62, and vertically partitions the outlet 602 into two parts, which are respectively air outlets of the cold air branch channel 61 and the hot air branch channel 62, the refrigeration component 8 is disposed on the partition 63, and the cold end 81 of the refrigeration component 8 is located in the cold air branch channel 61, and the hot end 82 is located in the hot air branch channel 62. The installation of the refrigeration module 8 is also advantageously achieved by the partition 63, with the hot end 82 of the refrigeration module 8 being located in the hot air branch 62 and the cold end 81 being located in the cold air branch 61.

In this embodiment, the refrigerating assembly 8 is a semiconductor refrigerating sheet, the semiconductor refrigerating sheet is embedded in the through hole 631 formed in the partition plate 63, the periphery of the semiconductor refrigerating sheet is sealed by a heat insulating seal ring 632, the cold end 81 of the semiconductor refrigerating sheet faces the cold air branch passage 61, and the hot end 82 faces the hot air branch passage 62. The planar cold end 81 and hot end 82 can heat or cool the air in the corresponding branch passage better, so as to improve the cooling efficiency of the cold air branch passage 61 and the heating efficiency of the hot air branch passage 62. In this embodiment, four semiconductor cooling fins are arranged on the partition plate 63 at intervals in parallel. In addition, for the convenience to control refrigeration subassembly 8, above-mentioned semiconductor refrigeration piece is two at least, and each semiconductor refrigeration piece can open and close respectively. Like this can control the opening and close of each semiconductor refrigeration piece as required, for example, when closing all semiconductor refrigeration pieces, can cool down the door body 2 through the air-out of fan 5 (the cooling efficiency is less than the cold wind cooling of cold wind branch way 61), when opening a certain amount of semiconductor refrigeration pieces as required, the air in cold wind branch way 61 is cooled down to the door body 2 to cold junction 81, and the air in hot-blast branch way 62 is dried to the ground of preceding below to hot junction 82 heating.

In order to avoid the heat transfer between the hot air branch passage 62 and the cold air branch passage 61 through the partition 63 from affecting the heating efficiency and the cooling efficiency of the two passages, one preferred implementation manner is: the partition 63 is made of a heat insulating material, for example: and the PP is enhanced by plastic nylon glass fiber. Another preferred implementation is: the refrigerating assembly 8 is arranged at one end, close to the outlet of the airflow channel 6, of the partition plate 63, so that air in the hot air branch channel 62 is heated after encountering a hot end 82 of the refrigerating assembly 8 and is guided into the ventilation gap 20, air in the cold air branch channel 61 is cooled after encountering a cold end 81 of the refrigerating assembly 8 and is guided to the front lower part of the box body 1, heat transfer between the hot air in the hot air branch channel 62 and the cold air in the cold air branch channel 61 through the partition plate 63 is avoided, and energy efficiency waste of the refrigerating assembly 8 can be avoided. In this embodiment, the above two modes are combined, that is, the partition 63 is made of a heat insulation material, and the refrigeration assembly 8 is disposed at one end of the partition 63 adjacent to the outlet of the airflow channel 6, so as to achieve a better effect.

The airflow channel 6 may have a plurality of specific implementation manners, in this embodiment, an air guiding cover 7 is transversely disposed below the bottom plate 11 of the box body 1, a longitudinal section of the air guiding cover 7 is bent, and includes a bottom wall 71, a left side wall 72, and a right side wall 73, and a cross section of the air guiding cover 7 is in a trapezoid shape, the air guiding cover 7 and a bottom surface of the bottom plate 11 enclose to form the airflow channel 6, an inlet 601 of the airflow channel 6 is located at a narrower end of the air guiding cover 7, and an outlet 602 is located at a wider end of the air guiding cover 7. The outlet 602 is sealed with an air deflector 4, a flow guiding gap 9 communicating with the ventilation gap 20 is left between the upper end of the air deflector 4 and the front end of the bottom plate 11, the front end edges of the partition plate 63 and the air guiding cover 7 are both abutted against the air deflector 4, and a vent hole 41 is arranged at the air deflector 4 corresponding to the air outlet of the hot air branch passage 62. The cold air in the hot air branch channel 62 can be guided into the ventilation gap 20 through the guiding gap 9, and the ventilation holes 41 on the air deflector 4 can guide the cold air in the hot air branch channel 62 to the ground in the lower front of the oven. Further, in order to guide the cool air in the cool air branch duct 61 to the ventilation gap 20 more efficiently, the front end of the partition 63 is inclined upward at the position corresponding to the flow guide gap 9, in this embodiment, the included angle between the front end of the partition 63 and the horizontal plane is 15 degrees. In order to guide the hot air in the hot air branch duct 62 to the ground in the front and lower part of the box body 1 more efficiently, the bottom wall 71 of the air guiding cover 7 is inclined downwards from the middle part thereof, and the inclined part of the bottom wall 71 in the embodiment forms an included angle of 15 degrees with the horizontal plane.

Claims

1. The embedded oven comprises a door body (2) and a box body (1), and is characterized in that the door body (2) comprises outer glass (21) and middle glass (22) arranged behind the outer glass (21), a ventilation gap (20) is reserved between the outer glass (21) and the middle glass (22), an air flow channel (6) is arranged at the bottom of the box body (1), the air flow channel (6) comprises a cold air branch channel (61) and a hot air branch channel (62), the cold air branch channel (61) leads to the ventilation gap (20), and the hot air branch channel (62) leads to the front lower part of the box body (1) downwards.

2. The built-in oven according to claim 1, characterized in that a fan (5) and a cooling component (8) are arranged in the air flow channel (6), the fan (5) is located at one end of the air flow channel (6), and the outlet air of the fan can enter the cold air branch channel (61) and the hot air branch channel (62) through the air inlets of the cold air branch channel (61) and the hot air branch channel (62), respectively, the cooling component (8) comprises a cold end (81) and a hot end (82), wherein the cold end (81) can cool the air in the cold air branch channel (61), and the hot end (82) can heat the air in the hot air branch channel (62).

3. The built-in oven according to claim 2, characterized in that said air flow channel (6) is horizontally disposed at the bottom of the case body (1), and has an inlet (601) at one end and is provided with said fan (5) and an outlet (602) at the other end, a partition (63) is horizontally disposed in said air flow channel (6), said partition (63) vertically divides the air flow channel (6) into said cool air branch duct (61) and said warm air branch duct (62), and vertically divides said inlet (601) into two parts, which are the air inlets of said cool air branch duct (61) and said warm air branch duct (62), and vertically divides said outlet (602) into two parts, which are the air outlets of said cool air branch duct (61) and said warm air branch duct (62),

the refrigeration assembly (8) is arranged on the partition plate (63), the cold end (81) of the refrigeration assembly (8) is positioned in the cold air branch passage (61), and the hot end (82) is positioned in the hot air branch passage (62).

4. The built-in oven according to claim 3, characterized in that said refrigerating assembly (8) is a semiconductor refrigerating sheet which is inserted in a through hole (631) made in the partition (63) and has a cold end (81) facing the cold air branch duct (61) and a hot end (82) facing the hot air branch duct (62).

5. Embedded oven according to claim 3 or 4, characterized in, that the partition (63) is made of insulating material.

6. The built-in oven according to claim 3 or 4, characterized in that said cooling assembly (8) is arranged at the end of the partition (63) adjacent to the outlet (602) of the air flow channel (6).

7. The built-in oven as claimed in claim 4, wherein the number of the semiconductor cooling plates is at least two, and each semiconductor cooling plate can be opened and closed separately.

8. The built-in oven according to claim 3 or 4, characterized in that an air guiding cover (7) is transversely arranged below the bottom plate (11) of the oven body (1), the air guiding cover (7) and the bottom surface of the bottom plate (11) are surrounded to form the air flow channel (6), the outlet (602) is sealed and provided with an air guiding plate (4), the upper end of the air guiding plate (4) and the front end part of the bottom plate (11) are provided with an air guiding gap (9) communicated with the ventilation gap (20), the front end edges of the partition plate (63) and the air guiding cover (7) are respectively abutted against the air guiding plate (4), and a vent hole (41) is arranged at the air guiding plate (4) corresponding to the air outlet of the hot air branch channel (62).

9. The built-in oven as claimed in claim 8, characterized in that the front end of said partition (63) is inclined upward in correspondence with said guide slits (9).

10. The built-in oven according to claim 8, characterized in that the bottom wall (71) of said air deflector (7) is inclined downwards from its middle.

11. The built-in oven as claimed in claim 8, characterized in that the bottom of the base plate (11) is provided with a base (3) matching with the base plate, the base (3) comprises a lower base plate (31), a left side plate (32), a right side plate (33) and a back side plate (34), the lower base plate (31) is parallel to the base plate (11) and is located below the base plate (11), the left side plate (32), the right side plate (33) and the back side plate (34) are enclosed between the base plate (11) and the lower base plate (31), the air guiding plate (4) is sealed at the front sides of the base plate (11) and the lower base plate (31), the air flow channel (6) is arranged in a space (30) enclosed by the base (3) and the base plate (11), and the air holes (35) are respectively arranged on the left side plate (32), the right side plate (33) and the back side plate (34).