CN112971544A

CN112971544A - Baking oven

Info

Publication number: CN112971544A
Application number: CN201911274636.4A
Authority: CN
Inventors: 贾晓芸; 王书春; 万新明
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2021-06-18

Abstract

The invention provides an oven, which comprises a treatment cavity for placing an object to be treated, a heating pipe arranged in the treatment cavity and used for generating heat, and a stone plate arranged in the treatment cavity and used for storing and conducting heat. The heating tube is at least partially embedded in the stone slab, in direct contact with the stone slab. The invention uses the stone plate as one wall surface of the oven, and the stone plate has high specific heat capacity and absorption capacity, so that after enough heat is absorbed by preheating, the influence of the position of the door body of the oven on heat loss can be reduced, stable environment temperature is provided for food, the effect and taste of baking the food by the oven are improved, and the cooking speed of the food is accelerated.

Description

Baking oven

Technical Field

The invention relates to a heating technology of food, in particular to an oven.

Background

Current oven inner bag material generally adopts metal material such as stainless steel, enamel steel, aluminum plate, cures in-process heating source mainly through the heating pipe of overall arrangement in the inner bag outside and inner bag inside, cures the food of placing in the inner bag inside through modes such as heat-conduction, heat radiation. The traditional oven has the problems of single heating mode, single heat source layout, large oven temperature fluctuation, slow food baking speed, poor taste of baked food and the like.

Disclosure of Invention

It is an object of the present invention to provide a new oven which solves at least one of the problems mentioned in the background.

A further object of the present invention is to make the structure of the oven more compact.

Another further object of the present invention is to improve the temperature control accuracy of the oven.

In particular, the present invention provides an oven comprising:

the treatment cavity is used for placing an object to be treated;

the heating pipe set up in the treatment chamber for produce heat, its characterized in that, the oven still includes:

the stone plate is arranged in the processing cavity and used for storing and conducting heat; wherein

The heating pipe is at least partially embedded in the stone slab, in direct contact with the stone slab.

Optionally, the stone plate is arranged on the bottom surface of the processing cavity and is configured to bear the object to be processed; and/or

The stone plate is embedded in the bottom surface of the processing cavity; and/or

The stone plate covers part or all of the bottom surface of the processing chamber.

Optionally, the stone slab is provided with a continuous pipe groove for accommodating the heating pipe; and is

The heating pipes are distributed in a serpentine shape in the bearing plane of the stone slab for bearing the object to be treated.

Optionally, a plurality of cross sections of the pipe grooves are formed on the stone slab, viewed from a direction perpendicular to the bearing plane, and an actual plane of the stone slab parallel to the bearing plane and all of the plurality of cross sections of the pipe grooves are not in contact, so that the heating pipe is coated inside the stone slab; and/or

The cross section of the pipe groove is circular.

Optionally, the stone slab is formed with a plurality of cross sections of the pipe grooves, viewed in a direction perpendicular to the bearing plane, the actual plane of the stone slab facing away from the bearing plane constituting at least part of the contour of at least one of the cross sections of the pipe grooves, so that part of the heating pipes are embedded in the stone slab on the side facing away from the treatment chamber; and/or

The cross section of the pipe groove is semicircular.

Optionally, the heating tube is circular in cross-section.

Optionally, the heating pipe has a first end and a second end, and the first end and the second end are arranged in the middle of one end surface of the stone plate and close to each other; and is

Said first and said second end extend first perpendicularly to said one end portion towards the inside of said stone slab and then away from each other towards the two sides of said stone slab, respectively.

Optionally, a temperature sensor is arranged in the stone slab, and the temperature sensor is a thermocouple; and/or

The one end portion of the stone plate is provided with a hole, and a temperature sensor is arranged in the hole to detect the temperature of the stone plate.

Optionally, the stone plate is disposed on at least one side of the processing chamber; and/or

One end of the stone slab is provided with a hole, and a temperature sensor is arranged in the hole to detect the temperature of the stone slab.

Optionally, the oven comprises:

a housing having the treatment chamber formed therein, the housing having a forward opening through which the object to be treated can be placed into the treatment chamber;

the heat-insulating layer is positioned in the shell and covers the outer side of the treatment cavity, and part of the heating pipe is embedded into the heat-insulating layer;

the heat dissipation air channel is arranged on the outer side of the top of the processing cavity;

a door body configured to be connected to a front portion of the case to open and close the forward opening; wherein

The door body is rotatably connected to one side of the forward opening and/or the door body is connected to a bottom edge area of the forward opening to be controlled to rotate downwards and expose the forward opening.

The invention uses the stone plate as one wall surface of the oven, and the stone plate has high specific heat capacity and absorption capacity, so that after enough heat is absorbed by preheating, the influence of the position of the door body of the oven on heat loss can be reduced, stable environment temperature is provided for food, the effect and taste of baking the food by the oven are improved, and the cooking speed of the food is accelerated.

Further, the area of the oven panel provided with the temperature sensor can be provided with both ends of the heating pipe at the same time, and the temperature sensor and the heating pipe are at least partially embedded in the panel, thereby enabling the necessary electrical and physical connection parts to be relatively concentrated and enabling the oven to be compact.

Furthermore, the oven provided by the invention has the advantages that the thermocouple temperature sensor is embedded in the stone plate, so that the temperature of the stone plate is detected in real time, the temperature control precision of the oven is improved, and the intuitive cooking experience is provided for a user.

Furthermore, according to the oven, part of the heating pipes are embedded into the stone plate, and part of the heating pipes are embedded into the heat insulation layer outside the stone plate, so that the heating pipes are relatively farther away from the bearing plane of the stone plate, and under the condition that the heat storage of the stone plate is ensured, the design can avoid the overhigh temperature of the bearing plane of the stone plate, so that the temperature of the stone plate and the bearing plane of the stone plate can be controlled more easily, and the temperature control precision of the oven is further improved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of an oven according to one embodiment of the present invention;

FIG. 2 is a schematic side cross-sectional view of the oven shown in FIG. 1;

FIG. 3 is a schematic block diagram of a stone slab according to one embodiment of the invention;

FIGS. 4a and 4b are schematic cross-sectional views taken along section line A-A in FIG. 3;

figure 5 is a schematic view of an interior side of a treatment cavity of an oven according to one embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic structural view of an oven 100 according to an embodiment of the present invention, in which a portion of a housing 101 of the oven 100 is cut away in fig. 1 in order to show an internal structure of the housing 101. Fig. 2 is a schematic side sectional view of the oven 100 shown in fig. 1.

Referring to fig. 1 and 2, the toaster 100 may generally include a processing chamber 200, a heating tube 300, and a stone slab 400. The processing chamber 200 is used for placing an object to be processed. The heating pipe 300 is disposed in the process chamber 200 to generate heat. A slate 400 is disposed within the processing chamber 200 for storing and conducting heat. In particular, the heating tube 300 is at least partially embedded in the stone slab 400, in direct contact with the stone slab 400. The heating tube 300 may be an electric heating tube or other form of heating tube.

That is, the slate 400 is used as one wall 201 or a part of one wall 201 of the oven 100, and since the slate 400 has high specific heat capacity and absorption capacity, after enough heat is absorbed by preheating, the influence of the door 104 of the oven 100 on heat dissipation can be reduced, stable environmental temperature can be provided for food, the effect and taste of baking the food in the oven 100 can be improved, and the cooking speed of the food can be increased.

In addition, the stone plate 400 of the present invention can absorb excessive moisture after steam spraying (the oven 100 has its own function or is manually operated by a user) is performed inside the oven 100, thereby effectively adjusting the humidity inside the processing chamber 200.

In some embodiments, the slate 400 is disposed on a bottom surface of the processing chamber 200 and is configured to carry an object to be processed. That is, the slate 400 may be disposed as a cooking surface at the bottom of the processing chamber 200 to be carried and directly contact the object to be processed (food). Thus, the oven 100 can provide a stable bottom high temperature for food, and when the object to be processed is, for example, meat, a meat frying function can be realized.

In some embodiments, the slate 400 is embedded in a bottom surface disposed in the processing chamber 200. Optionally, the slate 400 covers part or all of the bottom surface of the processing chamber 200. That is, the slate 400 may be embedded directly on the inner shell defining the processing chamber 200 to simplify installation. In other embodiments, the stone plate 400 is disposed on at least one side of the processing chamber 200.

That is, the stone plate 400 may be disposed only on the bottom surface of the processing chamber 200, or the stone plate 400 may be disposed only on one side surface of the processing chamber 200, or the stone plates 400 may be disposed on all of the side surfaces and the bottom surface of the processing chamber 200. The oven 100 of the present invention can further ensure the stability of the ambient temperature inside the processing chamber 200 by providing the stone plates 400 at the side of the processing chamber 200.

Figure 3 is a schematic block diagram of a slate 400 according to one embodiment of the present invention. Fig. 4a and 4b are schematic cross-sectional views taken along a sectional line a-a in fig. 3, and fig. 4a and 4b respectively show the shape of a pipe groove 500 in two embodiments of the present invention.

Referring to fig. 3, in some embodiments, the stone slab 400 is formed with a continuous pipe groove 500 to receive the heating pipe 300. In particular, the heating tube 300 is distributed in a serpentine shape in the bearing plane of the stone slab 400 for bearing the object to be treated. That is, the pipe groove 500 may be distributed in a serpentine shape uniformly in the bearing plane of the stone slab 400, and the heating pipe 300 is supported in the pipe groove 500 to uniformly heat the object to be processed placed on or near the bearing plane. It will be understood that the object to be treated does not necessarily have to be in contact with the slate 400, and that when the object to be treated is suspended by a grill or the like and placed in the treatment chamber 200, the side of the slate 400 facing the object to be treated is a bearing plane, and the slate 400 may be located at the bottom or side of the treatment chamber 200. That is, the bearing plane refers to a plane where the stone slab 400 actually contacts the object to be treated if the object to be treated moves into contact with the stone slab 400.

Referring to fig. 4a, in some embodiments, the stone slab 400 is formed with a plurality of sections of the pipe grooves 500, as viewed in a cross-sectional direction of the bearing plane, and an actual plane of the stone slab 400 parallel to the bearing plane and all of the plurality of sections of the pipe grooves 500 are not in contact, so that the heating pipe 300 is wrapped inside the stone slab 400. That is, the heating pipe 300 is entirely wrapped inside the stone slab 400, and the sectional area of the heating pipe 300 inside the stone slab 400 has a complete outer contour. The outer contour may be of any shape, and in some embodiments, the outer contour and the cross-section of the pipe groove 500 are circular, so that the heating pipe 300 can better conform to the stone slab 400 and conduct heat more uniformly with the stone slab 400.

Referring to fig. 4b, in some embodiments, the stone slab 400 is formed with a plurality of sections of the pipe groove 500, viewed in a cross-sectional direction of the bearing plane, and an actual plane of the stone slab 400 facing away from the bearing plane constitutes at least a partial outline of at least one section of the pipe groove 500 (for better clarity of illustrating the placement position of the heating pipe 300, lines constituting the partial outline are omitted from the cross-section of the stone slab 400 to illustrate that a side of the pipe groove 500 is an open notch), such that a portion of the heating pipe 300 is embedded in the stone slab 400 disposed on a side of the stone slab 400 facing away from the process chamber 200. That is, a portion of the heating tube 300 is embedded inside the stone slab 400 and a portion of the heating tube 300 is located outside the stone slab 400. The heating pipe 300 and the object to be treated are separated by the stone slab 400, and heat generated by the heating pipe 300 is stored by the stone slab 400 and conducted to the object to be treated. The stone slab 400 is configured to conduct heat in a planar manner, which may result in a more uniform change in the ambient temperature within the processing chamber 200, as compared to the substantially linear heat conduction of the heat pipe 300. In some embodiments, the pipe groove 500 has a semicircular cross-section and the heating pipe 300 has a circular cross-section, so that the heating pipe 300 can better conform to the stone slab 400 and conduct heat more uniformly with the stone slab 400.

In some embodiments, the heating tube 300 has a first end 301 and a second end 302, the first end 301 and the second end 302 being disposed proximate to each other in a central portion of one end surface of the stone slab 400. Further, the first end 301 and the second end 302 first extend perpendicular to one end portion towards the interior of the slate 400 and then extend away from each other towards the two side edges of the slate 400, respectively.

That is, the first end 301 and the second end 302 are first arranged close to each other in a middle area of the width of the stone slab, and then extend in the width direction of the stone slab 400 towards an edge area of the width of the stone slab to substantially cover the width of the stone slab 400, and then the pipe sections extending from the first end 301 and the second end 302 may extend in a serpentine shape towards each other in a mirror symmetry to achieve an even distribution of the heating pipe 300.

In some embodiments, a temperature sensor 600 is disposed in the slate 400, and the temperature sensor 600 is a thermocouple temperature sensor. Specifically, a hole is opened at one end of the slate 400, and a temperature sensor 600 is disposed in the hole to detect the temperature of the slate 400. Alternatively, both the first end 301 and the second end 302 of the heating pipe 300 may be provided on one end of the perforated slate 400, thereby allowing the necessary electrical connection, physical connection components to be concentrated in one area to make the oven 100 compact.

The thermocouple temperature sensor 600 is inserted or embedded in the slate 400 through the hole to detect the temperature of the slate 400 in real time, improve the temperature control accuracy of the oven 100, and provide an intuitive cooking experience for the user. The sensing portion of the thermocouple temperature sensor 600 may be completely submerged inside the slate 400 to obtain a more accurate temperature.

In some specific embodiments, oven 100 further includes a housing 101, an insulating layer 102, a heat dissipation duct 103, and a door 104. The housing 101 has a process chamber 200 formed therein, and the housing 101 has a forward opening through which the object to be processed can be put into the process chamber 200. The heat dissipation air duct 103 is disposed outside the top of the processing chamber 200. The door 104 may be configured to be connected to a front portion of the case 101 to open and close the forward opening. Further, the door body 104 may be configured to be rotatably coupled to one edge of the forward opening and/or the door body 104 may be coupled to a bottom edge region of the forward opening for controlled downward rotation and exposure of the forward opening.

More specifically, the housing 101 may further include an outer shell and an inner shell, the outer shell forms an external appearance of the oven 100, the inner shell is formed with the processing chamber 200 therein, and the insulating layer 102 is disposed between the inner shell and the outer shell. The insulating layer 102 is covered outside the processing chamber 200, and a part of the heating pipe 300 is embedded in the insulating layer 102. The insulation layer 102 has an insulating effect, which has a tendency to avoid conducting heat of the heating tube 300 away from the process chamber 200. Thereby, the heat generated from the heating pipe 300 can be more returned to the stone plate 400 to secure the cooking effect. In addition, because the heating pipe 300 is partially embedded into the insulating layer 102, the heating pipe 300 is relatively farther away from the bearing plane of the stone slab 400, and under the condition that the heat storage of the stone slab 400 is ensured, the design can avoid the over-high temperature of the bearing plane of the stone slab 400, so that the temperature of the stone slab 400 and the bearing plane thereof can be controlled more easily, the surface temperature of the bearing plane is more uniform, and the temperature control precision of the oven 100 is further improved. It is understood that the combination of the slate 400 with the heating tube 300 and with the temperature sensor 600 in any of the above embodiments is applicable to any one or more of the walls 201 of the processing chamber 200 with the slate 400, and that FIG. 5 shows one combination of the slate 400 with the walls 201.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An oven, comprising:

the treatment cavity is used for placing an object to be treated;

2. The oven of claim 1,

the stone plate is arranged on the bottom surface of the processing cavity and is configured to bear the object to be processed; and/or

3. The oven of claim 1,

the stone plate is provided with a continuous pipe groove for accommodating the heating pipe; and is

4. The oven of claim 3,

viewed from the direction of the cross section of the bearing plane, a plurality of cross sections of the pipe groove are formed on the stone slab, and an actual plane of the stone slab parallel to the bearing plane is not in contact with all the plurality of cross sections of the pipe groove, so that the heating pipe is coated inside the stone slab; and/or

The cross section of the pipe groove is circular.

5. The oven of claim 3,

viewed in cross-section, in the direction of the bearing plane, a plurality of cross-sections of the pipe grooves are formed in the stone slab, and the actual plane of the stone slab facing away from the bearing plane forms at least part of the contour of at least one of the cross-sections of the pipe groove, so that part of the heating pipes are embedded in the stone slab on the side facing away from the treatment chamber; and/or

The cross section of the pipe groove is semicircular.

6. The oven of claim 4 or 5,

the section of the heating pipe is circular.

7. The oven of claim 4 or 5,

the heating pipe is provided with a first end and a second end, and the first end and the second end are arranged in the middle of one end surface of the stone plate in a mutually close mode; and is

8. The oven of claim 7,

a temperature sensor is arranged in the stone plate, and the temperature sensor is a thermocouple; and/or

9. The oven of claim 1,

the stone plate is arranged on at least one side surface of the processing cavity; and/or

10. The oven of claim 1, comprising: