CN218870089U

CN218870089U - Electric baking tray with high thermal conductivity

Info

Publication number: CN218870089U
Application number: CN202223220248.8U
Authority: CN
Inventors: 张喜平
Original assignee: Zhongshan Josoo Electric Appliance Co ltd
Current assignee: Zhongshan Josoo Electric Appliance Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-18
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to an electric baking tray with high thermal conductivity, baking tray and base subassembly, the base subassembly includes base, PTC heating element and heat transfer layer, be provided with the heating chamber on the base, PTC heating element, heat transfer layer and baking tray set gradually in the heating chamber, and the baking tray dish bottom and heat transfer layer in close contact with, and still be provided with heat conduction silicone grease layer between PTC heating element and the heat transfer layer, make the heat transfer layer attached on PTC heating element with zero clearance through heat conduction silicone grease layer and realize heat conduction; the heat transfer layer of the electric baking tray is tightly abutted and fully contacted with the PTC heating body and the baking tray, so that the heat transfer efficiency is improved, the heat transfer is more uniform, the heating speed of the baking tray can be increased, the heating area and the heating speed of food are increased, and the processing time of the food is reduced.

Description

Electric baking tray with high thermal conductivity

Technical Field

The utility model relates to an electric baking tray field specifically is an electric baking tray that possesses high heat conductivity.

Background

The structure of the current electric baking tray is as in chinese patent No. ZL202220206709.7, which is named as: the utility model provides an electric baking tray, in the electric baking tray technical scheme that this patent discloses, mainly include the base, set up the heating tube on the base and directly place the overware on the heating tube, realize heat transfer through the area of contact between overware and the heating tube, but in disclosing the technique, its heating structure adopts the heating tube of bending back and forth to realize, in the use, can cause the heating tube to transfer heat to the overware not enough even, reduce the heating efficiency of overware, in addition, because the overware is only directly placed on the heating tube, when the upper surface of heating tube is not completely level and smooth, the heating tube will appear and only a few supporting points contact the overware bottom, it can fully contact with the overware bottom to be difficult to confirm the heating tube, thereby influence the heat transfer efficiency of overware.

The applicant has therefore provided, through structural improvements and perfections, a new solution that can replace the above-mentioned prior art, for the consumer to choose to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned current problem, provide a simple structure, reasonable electric baking tray that possesses high heat conductivity, its main effect is the heat transfer efficiency and the heat transfer area who improves the overware.

The electric baking tray with high thermal conductivity is characterized in that the base assembly comprises a base, a PTC heating body and a heat transfer layer, a heating cavity is arranged on the base, the PTC heating body, the heat transfer layer and the baking tray are sequentially arranged in the heating cavity, the tray bottom of the baking tray is in close contact with the heat transfer layer, a heat conduction silicone grease layer is further arranged between the PTC heating body and the heat transfer layer, and the heat transfer layer is attached to the PTC heating body in a zero-clearance mode through the heat conduction silicone grease layer to achieve heat conduction.

The purpose of the utility model can also adopt the following technical measures to solve:

as a more specific scheme, the heating cavity further comprises a heat insulation layer, the heat insulation layer is arranged below the PTC heating element, and after the heat insulation layer is connected with the PTC heating element or/and the heat transfer layer, the bottom surface of the PTC heating element is in close contact with the heat insulation layer.

As a further scheme, a supporting flange is arranged at the edge of the heat transfer layer and is placed on the heat insulation layer or the heating cavity, and an assembly interval matched with the accommodating thickness of the PTC heating body is formed between the supporting flange and the heat insulation layer of the heat transfer layer.

As a further proposal, the tray bottom of the baking tray is in plane contact with the heat transfer layer, and the plane area of the heat transfer layer is larger than the tray bottom area of the baking tray.

As a further scheme, a first bolt is arranged on the bottom surface of the heat transfer layer, a second through hole and a third through hole suitable for the first bolt to penetrate are correspondingly formed in the PTC heating body and the heat insulation layer, the PTC heating body and the heat transfer layer are mutually and tightly connected after being matched with the first bolt through screws.

As a further scheme, a buckling motion assembly is arranged on the opposite side of the base, and a reversing block is arranged on the buckling motion assembly; the outer tray wall of the baking tray is provided with a reverse-buckling groove corresponding to the reverse-buckling block, and the reverse-buckling block is selectively buckled with the reverse-buckling groove through the driving of the buckling motion assembly, so that the baking tray is detachably arranged on the base, and the tray bottom is in close contact with the heat transfer layer.

As a further scheme, the buckling moving assembly comprises a buckling plate, a button and a return spring; the base is provided with a hinge seat, the buckling plate is vertically connected to the hinge seat in a swinging mode through a middle rotating shaft, and the inverted buckling block is arranged at the upper portion of the buckling plate; the button is movably connected to the side surface of the base, and the touch part of the button abuts against or is close to the outer side surface of the lower part of the buckling plate; the base is provided with a spring limiting seat, and two ends of the reset spring are abutted against the inner side surfaces of the spring limiting seat and the lower part of the fastening plate.

As a further scheme, the heat transfer layer is provided with a buckling and avoiding opening corresponding to the buckling plate, the buckling plate extends upwards through the buckling and avoiding opening, and the inverted buckle block is arranged on the heat transfer layer.

As further scheme, the overware includes shell, inner shell and connects a plurality of stabilizer blades in the shell bottom, the inner shell be assembled between and be connected in the shell and spacing play heating chamber and heating the intracavity be provided with well kenozooecium, the periphery of well kenozooecium forms the support bearing surface of placing the insulating layer, a plurality of louvres have been seted up to the corresponding well kenozooecium in the end of shell.

As a further scheme, a plurality of connecting convex columns extend from the corresponding supporting and bearing surface of the inner shell, positioning holes matched with the connecting convex columns are formed in the heat insulation layer, second bolts are arranged on the heat transfer layer corresponding to the connecting convex columns, and after the second bolts penetrate through the connecting convex columns and are connected with screws, the heat insulation layer and the heat transfer layer are assembled and connected in the heating cavity.

The utility model has the advantages as follows:

(1) The utility model discloses an electric baking tray that possesses high heat conductivity, this kind of electric baking tray pass through between plane contact overware and the heat transfer layer closely offset, utilize the heat conduction silicone grease layer to fill the gap that probably appears between the two between heat transfer layer and the PTC heat-generating body in addition to ensure closely offsetting, the abundant contact between heat transfer layer and PTC heat-generating body, overware and the heat transfer layer, improve heat transfer efficiency.

(2) The utility model discloses an electric baking tray that possesses high heat conductivity, the heating structure of this kind of electric baking tray adopts the PTC heat-generating body can make heat transfer homogeneity more, and it is fast to heat up, temperature compensation, can accelerate the rate of heating of overware to improve the heated area and the rate of being heated of food, reduce the process time of food, have automatic homothermal characteristics, do not need temperature control system, can save the cost.

(3) The utility model discloses an electric baking tray that possesses high heat conductivity, this kind of electric baking tray's base pass through to constitute the fastening connection relation between lock joint structure and the overware, simple structure dismantles convenient and fast with the overware after the baking to can produce decurrent effort, make the overware sticis on the heat transfer layer.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of the heat transfer layer structure of the present invention.

Fig. 4 is an enlarged schematic view of B in fig. 1.

Fig. 5 is a schematic view of the cross-section of the present invention.

Fig. 6 is an exploded schematic view of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 6: the utility model provides an electric baking tray that possesses high heat conductivity, overware 1 and base subassembly, the base subassembly includes base 2, PTC heat-generating body 3 and heat transfer layer 4, be provided with heating chamber 201 on the base 2, PTC heat-generating body 3, heat transfer layer 4 and overware 1 set gradually in heating chamber 201, just overware 1 the end of a plate and heat transfer layer 4 in close contact with to still be provided with heat conduction silicone grease layer 16 between PTC heat-generating body 3 and the heat transfer layer 4, make through heat conduction silicone grease layer 16 heat transfer layer 4 zero clearance ground attached realize the heat conduction on PTC heat-generating body 3.

In this embodiment, the heat transfer layer 4 is made of a heat conductive metal such as cast aluminum, and the thermal insulation layer 5 is made of a thermal insulation material including, but not limited to, mica board.

The electric baking tray is tightly abutted between the baking tray 1 and the heat transfer layer 4 through plane contact, and in addition, a heat conduction silicone grease layer 16 is utilized between the heat transfer layer 4 and the PTC heating body 3 to fill the gap which possibly exists between the heat transfer layer 4 and the PTC heating body 3, so that the heat transfer layer 4 is tightly abutted and fully contacted with the PTC heating body 3 and the baking tray 1 and the heat transfer layer 4, and the heat transfer efficiency is improved.

And the heating structure adopts the PTC heating body 3, so that the heat transfer is more uniform, the temperature rise is rapid, the temperature compensation is rapid, the heating speed of the baking tray can be increased, the heating area and the heating speed of food are increased, the processing time of the food is reduced, the automatic constant temperature is realized, a temperature control system is not needed, and the cost can be saved.

When the PTC heater is installed, the heat-conducting silicone grease is uniformly coated on the upper surface of the PTC heater 3, so that the heat-conducting silicone grease layer 16 is formed.

Still including insulating layer 5 in the heating chamber 201, insulating layer 5 sets up in the below of PTC heat-generating body 3 to after insulating layer 5 and PTC heat-generating body 3 or/and heat transfer layer 4 interconnect, the bottom surface and the 5 in close contact with of insulating layer of PTC heat-generating body 3 set up insulating layer 5 in the below of PTC heat-generating body 3, can separation heat downward radiation, upwards reflect the heat to a certain extent, improve the thermal conductivity efficiency to the overware heat.

The edge of the heat transfer layer 4 is provided with a support flange 401, and the support flange 401 can be formed by bending and extending the edge of the heat transfer layer 4 downwards or bending and extending the edge of the heat insulation layer 5 upwards;

in this embodiment, it is preferable that the edge of the heat transfer layer 4 is formed by bending downward and extending, the support flange 401 is placed on the heat insulation layer 5 or the heating cavity 201, and the heat transfer layer 4 forms an assembly interval 10 adapted to the accommodating thickness of the PTC heating element 3 through the support flange 401 and the heat insulation layer 5; since the PTC heating element 3 corresponds to the middle portion of the heat transfer layer 4, it only supports the middle portion of the heat transfer layer 4, and the support flange 401 is added to this structure, so that the heat transfer layer 4 can be erected to form the assembly space 10, and the edge portion of the heat transfer layer 4 can be supported to prevent the edge from being pressed and deformed downward.

In this embodiment, the PTC heating element 3, the heat transfer layer 4, the tray bottom of the baking tray 1, and even the heat insulation layer 5 are all in a flat plate shape, so that the tray bottom of the baking tray 1 is in planar contact with the heat transfer layer 4, and the planar area of the heat transfer layer 4 is larger than that of the tray bottom of the baking tray 1; this configuration allows heat transfer layer 4 to have a sufficient area to contact the bottom of grill pan 1 when grill pan 1 is displaced during placement.

The bottom surface of the heat transfer layer 4 is provided with a first bolt 13, the PTC heating body 3 and the heat insulation layer 5 are correspondingly provided with a second through hole 301 and a third through hole 501 suitable for the first bolt 13 to penetrate through, after the heat insulation layer 5, the PTC heating body 3 and the heat transfer layer 4 are mutually and tightly connected through the cooperation of screws and the first bolt 13, the number of the first bolts 13 is a plurality, and at least part of the first bolts corresponds to the middle part of the PTC heating body 3.

In the actual production process, the first bolt 13 can be integrally arranged on the bottom surface of the heat transfer layer 4 through welding or other modes, the PTC heating body 3 and the heat insulation layer 5 only need to be aligned to the first bolt 13 through the second through hole 301 and the third through hole 501 during assembly, or the heat transfer layer 4 is provided with the first through hole 402, the first through hole 402 corresponds to the second through hole 301 and the third through hole 501, and the first bolt 13 sequentially passes through the first through hole 402, the second through hole 301 and the third through hole 501 and then is connected with a screw to realize tight assembly during assembly.

A lock joint moving component is arranged on the opposite side of the base 2, and a reverse block 7 is arranged on the lock joint moving component; the outer wall of the baking tray 1 is provided with a reverse-buckling groove 8 corresponding to the reverse-buckling block 7, and the reverse-buckling block 7 is driven by a buckling motion assembly to be selectively buckled with the reverse-buckling groove 8, so that the baking tray 1 is detachably arranged on the base 2, and the tray bottom is tightly contacted with the heat transfer layer 4.

The buckling movement assembly comprises a buckling plate 6, a button 8a and a return spring 9; the base 2 is provided with a hinge seat 202, the buckling plate 6 is vertically connected to the hinge seat 202 in a swinging manner through a middle rotating shaft 601, and the inverted buckle block 7 is arranged at the upper part of the buckling plate 6; the button 8a is movably connected to the side surface of the base 2, and the touch part of the button abuts against or is close to the outer side surface of the lower part of the buckle plate 6; the base 2 is provided with a spring limiting seat 203, two ends of the reset spring 9 are abutted against the inner side surfaces of the lower parts of the spring limiting seat 203 and the buckling plate 6, and the downward acting force is applied to the baking tray through the reverse buckling block 7 to strain the baking tray 1 so that the tray bottom of the baking tray is tightly abutted against and contacted with the heat transfer layer 4, the heat transfer layer 4 and the PTC heating body 3.

The specific operation flow of the buckling movement assembly is as follows: when the baking tray is disassembled, a user only needs to press the button 8a inwards, the touch part of the button 8a pushes the outer side face of the lower part of the buckling plate 6, so that the inverted buckle block 7 arranged at the upper part of the buckling plate 6 leaves the inverted buckle groove 8, the inverted buckle block contacts the buckling relation between the baking tray 1 and the base 2, and after the user loosens the button 8a, the buckling plate 6 is pushed to reset under the reverse acting force of the reset spring 9; when assembling overware 1 again on heating chamber 201, the user can press button 8a equally and make buckle connection plate 6 swing, wait that the overware to place the back loose hand that targets in place again, make back-off piece 7 push back-off piece 7 under reset spring 9's reverse acting force and restore to the throne and detain in back-off recess 8, perhaps in installing overware direct mount to heating chamber 201 again, push back-off piece 6 through overware bottom portion, after overware 1 installed and target in place, push back-off piece 7 under reset spring 9's reverse acting force and restore to the throne and detain in back-off recess 8.

Correspondingly, insulating layer 5 corresponds articulated seat 202 and has seted up articulated seat and dodge mouth 503, and insulating layer 5 dodges mouth 503 and articulated seat 202 cooperation through articulated seat and plays the positioning action, and heat transfer layer 4 corresponds articulated seat and dodges mouth 503 and has seted up the lock joint and dodge mouth 404, dodges mouth 404 through the lock joint and makes lock joint plate 6 have the space to upwards extend and make back-off piece 7 arrange in on heat transfer layer 4, be convenient for with overware 1 looks lock joint.

The baking tray 1 comprises an outer shell 11, an inner shell 12 and a plurality of support legs 14 connected to the bottom of the outer shell 11, wherein the inner shell 12 is assembled and connected in the outer shell 11 and limits the position of the heating cavity 201, a hollow part 204 is arranged in the heating cavity 201, a supporting and bearing surface 205 for placing a heat insulation layer 5 is formed on the periphery of the hollow part 204, and a plurality of heat dissipation holes 111 are formed in the bottom of the outer shell 11 corresponding to the hollow part 204; the area of the hollow part 204 corresponds to or is close to the assembly position of the PTC heating element 3, which can play a role of heat insulation, discharge heat by using the heat radiation holes 111, and introduce fresh cold air for cooling.

In addition, in order to ensure the safe use of the electric baking tray, a touch switch 15 which passes through the heat insulation layer 5 and the heat transfer layer 4 and is matched with the baking tray or an intermediate transmission part on the touch switch is arranged on the supporting and bearing surface 205, so that the touch switch can be triggered to electrify the PTC heating element 3 for use after the baking tray is installed in place.

A plurality of connecting convex columns 121 extend from the inner shell 12 corresponding to the supporting surface 205, a positioning hole 502 matched with the connecting convex column 121 is formed in the heat insulation layer 5, a second bolt 17 is arranged on the heat transfer layer 4 corresponding to the connecting convex column 121, and the heat insulation layer 5 and the heat transfer layer 4 are assembled and connected in the heating cavity 201 after the second bolt 17 penetrates through the connecting convex column 121 and is connected with a screw; the structure can assemble and fix the heat transfer layer 4, the PTC heating body 3 and the heat insulation layer 5 in the heating cavity, and make the heat transfer layer, the PTC heating body and the heat insulation layer tightly matched with each other.

In addition, similarly, the second bolt 17 can be integrally disposed on the bottom surface of the heat transfer layer 4 by welding or other methods, or a fitting hole 403 is opened corresponding to the connecting stud 121, and the second bolt 17 passes through the fitting hole 403 and the connecting stud 121 to be connected with a screw.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides an electric baking tray with high heat conductivity, overware (1) and base subassembly, its characterized in that the base subassembly includes base (2), PTC heat-generating body (3) and heat transfer layer (4), be provided with heating chamber (201) on base (2), PTC heat-generating body (3), heat transfer layer (4) and overware (1) set gradually in heating chamber (201), just overware (1) the end of a plate with heat transfer layer (4) in close contact with, and still be provided with heat conduction silicone grease layer (16) between PTC heat-generating body (3) and heat transfer layer (4), make through heat conduction silicone grease layer (16) heat transfer layer (4) zero clearance ground attached realize the heat conduction on PTC heat-generating body (3).

2. The electric grill pan with high thermal conductivity according to claim 1, wherein the heating chamber (201) further comprises a heat insulating layer (5), and the heat insulating layer (5) is disposed below the PTC heating element (3).

3. The electric baking tray with high thermal conductivity according to claim 2, wherein a supporting flange (401) is arranged at the edge of the heat transfer layer (4), the supporting flange (401) is placed on the heat insulating layer (5) or the heating cavity (201), and an assembly interval (10) which is matched with the accommodating thickness of the PTC heating element (3) is formed between the heat transfer layer (4) and the heat insulating layer (5) through the supporting flange (401).

4. The electric grill pan with high thermal conductivity according to any of claims 1 to 3, wherein the pan bottom of the grill pan (1) is in plane contact with the heat transfer layer (4), and the plane area of the heat transfer layer (4) is larger than the pan bottom area of the grill pan (1).

5. The electric grill pan with high thermal conductivity according to claim 2, wherein the bottom surface of the heat transfer layer (4) is provided with a first bolt (13), the PTC heating element (3) and the heat insulation layer (5) are correspondingly provided with a second through hole (301) and a third through hole (501) suitable for the first bolt (13) to penetrate, and the heat insulation layer (5), the PTC heating element (3) and the heat transfer layer (4) are tightly connected with each other after being matched with the first bolt (13) through screws.

6. The electric grill plate with high thermal conductivity according to any of claims 1 to 5, wherein the opposite side of the base (2) is provided with a snap-fit moving component, and the snap-fit moving component is provided with an inverted block (7); the outer wall of the baking tray (1) is provided with a reverse-buckling groove (8) corresponding to the reverse-buckling block (7), the reverse-buckling block (7) is selectively buckled with the reverse-buckling groove (8) through the driving of the buckling motion assembly, so that the baking tray (1) is detachably arranged on the base (2), and the tray bottom is in close contact with the heat transfer layer (4).

7. The electric grill pan with high thermal conductivity according to claim 6, wherein the snap-fit moving assembly comprises a snap plate (6), a button (8 a) and a return spring (9); the base (2) is provided with a hinge seat (202), the buckling plate (6) is vertically and swing connected to the hinge seat (202) through a middle rotating shaft (601), and the inverted buckle block (7) is arranged at the upper part of the buckling plate (6); the button (8 a) is movably connected to the side surface of the base (2), and the touch part of the button is abutted against or close to the outer side surface of the lower part of the buckling plate (6); the base (2) is provided with a spring limiting seat (203), and two ends of the reset spring (9) are abutted against the inner side surface of the lower part of the spring limiting seat (203) and the buckling plate (6).

8. The electric grill with high thermal conductivity according to claim 7, wherein the heat transfer layer (4) has a fastening avoiding opening (404) corresponding to the fastening plate (6), and the fastening plate (6) extends upward through the fastening avoiding opening (404) and the inverted block (7) is disposed on the heat transfer layer (4).

9. The electric baking tray with high thermal conductivity according to claim 2, wherein the baking tray (1) comprises an outer shell (11), an inner shell (12) and a plurality of support legs (14) connected to the bottom of the outer shell (11), the inner shell (12) is assembled and connected in the outer shell (11) and limits the position of the heating cavity (201), a hollow part (204) is arranged in the heating cavity (201), a supporting and supporting surface (205) for placing the heat insulation layer (5) is formed on the periphery of the hollow part (204), and a plurality of heat dissipation holes (111) are formed in the bottom of the outer shell (11) corresponding to the hollow part (204).

10. The electric baking tray with high thermal conductivity according to claim 9, wherein a plurality of connecting convex columns (121) extend from the inner casing (12) corresponding to the supporting and supporting surface (205), the heat insulating layer (5) is provided with positioning holes (502) matched with the connecting convex columns (121), the heat transfer layer (4) is provided with second bolts (17) corresponding to the connecting convex columns (121), and after the second bolts (17) penetrate through the connecting convex columns (121) and are connected with screws, the heat insulating layer (5) and the heat transfer layer (4) are assembled and connected in the heating cavity (201).