Heating device and grill including the same

Abstract

The utility model discloses a kind of heating device and including the baking machine of the heating device, heating device includes heating assembly, it is characterized by, still including heat transfer plate, the heating assembly includes heat conduction shell and the electric heating tube fixed in heat conduction shell, the heat conduction shell is provided with welding plane, the heat conduction shell is welded in the bottom wall of heat transfer plate by welding plane;This heating device, electric heating tube is fixed in the bottom wall of heat transfer plate by heat conduction shell, and heat conduction shell is connected in the bottom wall of heat transfer plate by welding plane, i.

Description

Technical Field

[0001] This utility model specifically relates to a heating device and a grilling machine including the heating device. Background Technology

[0002] Existing electric cooking appliances, such as grills, include a main unit, a baking pan, and a pot. The upper side of the main unit has a groove that fits the baking pan and the pot, allowing users to choose to install either the baking pan or the pot in the groove to meet various cooking needs. The groove contains a heat-conducting plate, and a heating element is welded to the bottom surface of the heat-conducting plate. However, existing heating elements are generally cylindrical iron pipes, and their contact with the bottom surface of the heat-conducting plate is a line contact. This results in a small welding area between the heating element and the bottom surface of the heat-conducting plate, a weak connection between the two, and low heat transfer efficiency from the heating element to the heat-conducting plate. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the existing technology and provide a heating device that increases the connection area between the heating element and the heat transfer plate, thereby ensuring a strong connection between the heating element and the heat transfer plate and improving the heat transfer efficiency of the heating element to the heat transfer plate.

[0004] Another objective of this invention is to provide a grill that integrates the pot body and the heating device, improves the heating efficiency of the pot body, ensures the service life of the heating device, and makes the overall installation of the product convenient and secure.

[0005] The purpose of this utility model is achieved as follows:

[0006] A heating device includes a heating element, characterized in that it further includes a heat transfer plate. The heating element includes a heat-conducting shell and an electric heating tube fixed inside the heat-conducting shell. The heat-conducting shell is provided with a welding plane, and the heat-conducting shell is welded to the bottom wall of the heat transfer plate through the welding plane. In this heating device, the electric heating tube is fixed to the bottom wall of the heat transfer plate through the heat-conducting shell, and the heat-conducting shell is connected to the bottom wall of the heat transfer plate through the welding plane. That is, the connection area between the electric heating tube and the heat transfer plate is increased, which not only makes the connection between the electric heating tube and the heat transfer plate more secure, but also improves the heat transfer efficiency of the electric heating tube to the heat transfer plate.

[0007] Specifically, the heat transfer plate is thin and has two sets of coiled heating elements on its bottom wall, with the two sets of heating elements having the same center. Both the heat transfer plate and the heat-conducting shell are made of aluminum. The aluminum material facilitates welding between the heat transfer plate and the heat-conducting shell. At the same time, the two sets of heating elements can greatly improve the heating efficiency of the heat transfer plate.

[0008] Specifically, the heat-conducting shell has an isosceles trapezoidal cross-section, the top wall of the heat-conducting shell is the welding plane, the bottom wall of the heat-conducting shell is connected to the two sides by a circular arc, the area of ​​the bottom wall of the heat-conducting shell is smaller than the area of ​​the top wall of the heat-conducting shell, and the heating tube has a circular cross-section; so that the area of ​​the top wall of the heat-conducting shell is larger, that is, the welding area between the heat-conducting shell and the bottom wall of the heat transfer plate is larger, which can well ensure the connection between the two.

[0009] Specifically, the heating element is an iron tube; it is readily available.

[0010] Another objective of this invention is achieved as follows:

[0011] A grilling machine including the aforementioned heating device comprises an outer shell, a pot body, and the heating device. The outer shell contains a receiving cavity. The machine further includes a heat insulation cover, a first connecting member, and a second connecting member. A heat transfer plate is welded to the bottom of the pot body. A first connecting post and a second connecting post are provided at the bottom of the pot body or the bottom of the heat transfer plate. The upper end of the heat insulation cover abuts against the bottom of the pot body and encloses the heating device. One end of the first connecting member passes through the heat insulation cover and connects to the first connecting post. The pot body, the heating device, and the heat insulation cover are placed together in the receiving cavity, with the upper end of the pot body resting on the upper opening of the receiving cavity. One end of the second connecting member passes sequentially through the outer shell and the heat insulation cover and connects to the second connecting post. This grill, by welding the pot body and heating element together and placing them together in the housing of the outer shell, effectively avoids the influence of the external environment on the pot body and heating element. This significantly improves the heating efficiency of the pot body and ensures the service life of the heating element. At the same time, the heat insulation cover provides good heat insulation, which not only improves the heating efficiency of the heat transfer plate on the pot body, but also prevents the heat from the heating element from affecting other electrical components in the housing. Furthermore, the heat insulation cover can be connected and fixed to the heating plate through the first connector, and the outer shell can be connected and fixed to the heating plate through the second connector, forming a one-piece product that is easy and secure to install.

[0012] Specifically, the upper outer periphery of the pot body extends outward with a coiled section, and there is a gap between the coiled section and the upper outer periphery of the pot body. The upper inner side of the outer shell body extends upward with a convex section, which is inserted into the gap and its top surface abuts against the upper outer periphery of the pot body. The coiled section is supported on the upper end of the outer shell body and is located on one side of the convex section. Through the gap fit between the convex section of the outer shell body and the pot body, a certain positioning function is played between the outer shell body and the pot body, which facilitates the operation of the subsequent second connecting piece. At the same time, the upper end of the outer shell body supports the top surfaces of the coiled section and the convex section on the upper outer periphery of the pot body, which is conducive to the stable placement of the pot body on the outer shell body.

[0013] Specifically, it further includes a glass lid, a support platform is provided on the upper inner side of the pot body, and a silicone pad is provided on the outer periphery of the glass lid, with the silicone pad on the outer periphery of the glass lid placed on the support platform; the support platform can play a good role in supporting the glass lid, and at the same time, the silicone strip can effectively improve the sealing between the glass lid and the pot body.

[0014] Furthermore, the bottom of the heat transfer plate extends downward with a positioning post, and the heat insulation cover has a positioning through hole corresponding to the position of the positioning post. One end of the positioning post passes downward through the positioning through hole. Through the cooperation of the positioning post and the positioning through hole, the heat insulation cover is positioned well at the bottom of the pot body, which facilitates the installation of the heat insulation cover.

[0015] Specifically, the first connector is a connecting screw, the heat insulation cover is provided with a first through hole, the first connecting post is provided with a first screw hole, and one end of the connecting screw passes through the first through hole and connects with the first screw hole; this installation method is simple to operate and securely installed.

[0016] Specifically, the second connector is a connecting screw. The inner bottom of the outer shell is provided with an inner groove, and an intermediate connecting seat is provided on the inner groove. One end of the intermediate connecting seat passes through the inner groove upward and extends into the receiving cavity. A second screw hole is opened on the second connecting post. A second through hole is opened on the heat insulation cover corresponding to the position of the second screw hole. A connecting through hole is opened on the intermediate connecting seat corresponding to the position of the second screw hole. One end of the connecting screw passes through the connecting through hole and the second through hole from bottom to top and then connects to the second screw hole. The intermediate connecting seat can effectively shorten the connection distance between the outer shell and the heat insulation cover and the heating plate, thereby facilitating the second connector to connect the outer shell with the heat insulation cover and the heating plate together.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) In this heating device, the heating tube is fixed to the bottom wall of the heat transfer plate through the heat-conducting shell, and the heat-conducting shell is connected to the bottom wall of the heat transfer plate through the welding plane. That is, the connection area between the heating tube and the heat transfer plate is increased, which not only makes the connection between the heating tube and the heat transfer plate firm, but also improves the heat transfer efficiency of the heating tube to the heat transfer plate.

[0019] (2) This grill, by welding the pot body and the heating device together and placing them together in the housing cavity of the outer shell, can effectively avoid the influence of the external environment on the pot body and the heating device, can effectively improve the heating efficiency of the pot body and ensure the service life of the heating device. At the same time, the heat insulation cover has a good heat insulation effect, which can not only improve the heating efficiency of the heat transfer plate on the pot body, but also prevent the heat of the heating component from affecting other electrical components in the housing cavity. Furthermore, the heat insulation cover can be connected and fixed to the heating plate through the first connector, and the outer shell can be connected and fixed to the heating plate through the second connector, so as to form an integral product. The overall installation of this product is convenient and firm.

[0020] (3) The gap between the outer shell and the pot body plays a certain positioning role in the fit between the outer shell and the pot body, which facilitates the operation of the second connecting piece. At the same time, the top of the outer shell and the top of the coiled section and the outer convex section both play a supporting role on the upper outer periphery of the pot body, which is conducive to the stable placement of the pot body on the outer shell. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the heating device of this utility model.

[0022] Figure 2 This is a breakdown diagram of the heating device of this utility model.

[0023] Figure 3 This is a schematic diagram of the grilling machine of this utility model.

[0024] Figure 4 This is a cross-sectional view of the grilling machine of this utility model.

[0025] Figure 5 for Figure 4 Enlarged view of point A.

[0026] Figure 6 for Figure 4 Enlarged view of point B.

[0027] Figure 7 This is a disassembled view of the grilling machine of this utility model. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Implementation examples, in conjunction with Figures 1 to 7 As shown, a heating device includes a heating component, characterized in that it further includes a heat transfer plate 3. The heating component includes a heat-conducting shell 5 and an electric heating tube 6 fixed inside the heat-conducting shell 5. The heat-conducting shell 5 is provided with a welding plane 51, and the heat-conducting shell 5 is welded to the bottom wall of the heat transfer plate 3 through the welding plane 51.

[0030] As a more specific embodiment, the heat transfer plate 3 is thin and has two sets of coiled heating components on its bottom wall, with the two sets of heating components having the same center. Both the heat transfer plate 3 and the heat-conducting shell 5 are made of aluminum, and the heating tube 6 is an iron tube. The two sets of heating components are similar in shape but different in size.

[0031] In this embodiment, the heat-conducting outer shell 5 has an isosceles trapezoidal cross-section, the top wall of the heat-conducting outer shell 5 is the welding plane 51, the bottom wall 52 of the heat-conducting outer shell 5 and the two side walls 53 are connected by an arc transition, the area of ​​the bottom wall 52 of the heat-conducting outer shell 5 is smaller than the area of ​​the top wall of the heat-conducting outer shell 5, and the cross-section of the heating tube 6 is circular.

[0032] Combination Figures 1 to 7 As shown, a grilling machine including the above-mentioned heating device includes an outer shell 1, a pot body 2, and a heating device. The outer shell 1 is provided with a receiving cavity 11. It is characterized by further including a heat insulation cover 4, a first connector, and a second connector. The heat transfer plate 3 is welded to the bottom of the outer shell 2. The bottom of the pot body 2 or the bottom of the heat transfer plate 3 is provided with a first connecting post 21 and a second connecting post 22. The upper end of the heat insulation cover 4 abuts against the bottom of the outer shell 2 and the heat insulation cover 4 covers the heating device. One end of the first connector passes through the heat insulation cover 4 and is connected to the first connecting post 21. The pot body 2 and the heating device together with the heat insulation cover 4 are placed in the receiving cavity 11, and the upper end of the pot body 2 is supported at the upper opening of the receiving cavity 11. One end of the second connector passes through the outer shell 1 and the heat insulation cover 4 in sequence and is connected to the second connecting post 22.

[0033] More specifically, the first connecting post 21 and the second connecting post 22 are disposed at the bottom of the heat transfer plate 3, and the first connecting post 21 and the second connecting post 22 are staggered with the two sets of heating components; the heating positions on the heat transfer plate 3 are concentrated at the corresponding positions of the two sets of heating components.

[0034] As a more specific embodiment, the upper outer periphery of the pot body 2 extends outward with a coiled section 23, and there is a gap 100 between the coiled section 23 and the upper outer periphery of the pot body 2. The upper inner side of the outer shell 1 extends upward with a protruding section 12, which is inserted into the gap 100 and the top surface of the protruding section 12 abuts against the upper outer periphery of the pot body 2. The coiled section 23 is supported on the upper end of the outer shell 1 and is located on one side of the protruding section 12.

[0035] In this embodiment, a glass cover 7 is also included. A support platform 24 is provided on the upper inner side of the pot body 2. A silicone pad 71 is provided on the outer periphery of the glass cover 7 and the silicone pad 71 on the outer periphery of the glass cover 7 is placed on the support platform 24.

[0036] As a preferred embodiment, the bottom of the heat transfer plate 3 also extends downward with a positioning post 31, and the heat insulation cover 4 has a positioning through hole 41 corresponding to the position of the positioning post 31, with one end of the positioning post 31 passing downward through the positioning through hole 41.

[0037] As a more specific solution, the first connector is a connecting screw, the heat insulation cover 4 is provided with a first through hole 42, the first connecting post 21 is provided with a first screw hole 211, and one end of the connecting screw passes through the first through hole 42 and is connected to the first screw hole 211.

[0038] As a more specific embodiment, the second connector is a connecting screw. The inner bottom of the outer shell 1 is provided with an inner groove 13. An intermediate connecting seat 8 is provided on the inner groove 13, and one end of the intermediate connecting seat 8 passes upward through the inner groove 13 and extends into the receiving cavity 11. A second screw hole 221 is opened on the second connecting post 22. A second through hole 43 is opened at the position corresponding to the second screw hole 221 on the heat insulation cover 4. A connecting through hole 81 is opened at the position corresponding to the second screw hole 221 on the intermediate connecting seat 8. One end of the connecting screw passes through the connecting through hole 81 and the second through hole 43 from bottom to top and then connects to the second screw hole 221.

Claims

1. A heating device, comprising a heating element, characterized in that, It also includes a heat transfer plate (3), and the heating component includes a heat-conducting shell (5) and an electric heating tube (6) fixed inside the heat-conducting shell (5). The heat-conducting shell (5) is provided with a welding plane (51), and the heat-conducting shell (5) is welded to the bottom wall of the heat transfer plate (3) through the welding plane (51).

2. The heating device according to claim 1, characterized in that, The heat transfer plate (3) is thin and has two sets of coiled heating components on its bottom wall. The two sets of heating components have the same center. Both the heat transfer plate (3) and the heat-conducting shell (5) are made of aluminum.

3. The heating device according to claim 2, characterized in that, The heat-conducting shell (5) has an isosceles trapezoidal cross section. The top wall of the heat-conducting shell (5) is the welding plane (51). The bottom wall (52) of the heat-conducting shell (5) and the two sides (53) are connected by an arc transition. The area of ​​the bottom wall (52) of the heat-conducting shell (5) is smaller than the area of ​​the top wall of the heat-conducting shell (5). The electric heating tube (6) has a circular cross section.

4. The heating device according to claim 2, characterized in that, The heating element (6) is an iron pipe.

5. A grilling machine comprising the heating device according to any one of claims 1-4, comprising an outer shell (1), a pot body (2), and a heating device, wherein the outer shell (1) is provided with a receiving cavity (11), characterized in that, It also includes a heat insulation cover (4), a first connector and a second connector. The heat transfer plate (3) is welded to the bottom of the outer side of the pot body (2). The bottom of the pot body (2) or the bottom of the heat transfer plate (3) is provided with a first connecting post (21) and a second connecting post (22). The upper end of the heat insulation cover (4) abuts against the bottom of the outer side of the pot body (2) and the heat insulation cover (4) wraps the heating device. One end of the first connector passes through the heat insulation cover (4) and is connected to the first connecting post (21). The pot body (2) and the heating device together with the heat insulation cover (4) are placed in the accommodating cavity (11) and the upper end of the pot body (2) rests on the upper opening of the accommodating cavity (11). One end of the second connector passes through the outer shell (1) and the heat insulation cover (4) in sequence and is connected to the second connecting post (22).

6. The grilling machine according to claim 5, characterized in that, The upper outer periphery of the pot body (2) extends outward with a coiled section (23), and there is a gap (100) between the coiled section (23) and the upper outer periphery of the pot body (2). The upper inner side of the outer shell (1) extends upward with a convex section (12), which is inserted into the gap (100) and the top surface of the convex section (12) abuts against the upper outer periphery of the pot body (2). The coiled section (23) is supported on the upper end of the outer shell (1) and the coiled section (23) is located on one side of the convex section (12).

7. The grilling machine according to claim 6, characterized in that, It also includes a glass cover (7), and a support platform (24) is provided on the upper inner side of the pot body (2). A silicone pad (71) is provided on the outer periphery of the glass cover (7), and the silicone pad (71) on the outer periphery of the glass cover (7) is placed on the support platform (24).

8. The grilling machine according to claim 5, characterized in that, The bottom of the heat transfer plate (3) also has a positioning post (31) extending downwards. The heat insulation cover (4) has a positioning through hole (41) corresponding to the position of the positioning post (31). One end of the positioning post (31) passes downwards through the positioning through hole (41).

9. The grilling machine according to claim 8, characterized in that, The first connector is a connecting screw. The heat insulation cover (4) is provided with a first through hole (42). The first connecting post (21) is provided with a first screw hole (211). One end of the connecting screw passes through the first through hole (42) and is connected to the first screw hole (211).

10. The grilling machine according to claim 5, characterized in that, The second connector is a connecting screw. The inner bottom of the outer shell (1) is provided with an inner groove (13). An intermediate connecting seat (8) is provided on the inner groove (13), and one end of the intermediate connecting seat (8) passes through the inner groove (13) upward and extends into the receiving cavity (11). A second screw hole (221) is opened on the second connecting post (22). A second through hole (43) is opened on the heat insulation cover (4) corresponding to the position of the second screw hole (221). A connecting through hole (81) is opened on the intermediate connecting seat (8) corresponding to the position of the second screw hole (221). One end of the connecting screw passes through the connecting through hole (81) and the second through hole (43) from bottom to top and then connects to the second screw hole (221).

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