TWM519468U - Heating device for electric pot - Google Patents

Description

Electric pot heating device

The present invention relates to an electric kettle heating device, and more particularly to a device capable of heating the inner pot of an electric cooker to cook the foodstuff in the pan.

According to the four new patent cases of the Republic of China Patent Bulletin Nos. M385311, M388905, M432368, and M510708, respectively, an electric cooker structure is disclosed and each has a pot body (inner liner), an aluminum plate and a heating plate, and the heating plate is disposed through the aluminum plate. At the bottom of the pot body, the electric heating element in the heating plate is heated by heat conduction to the aluminum plate, and the heat is transmitted through the aluminum plate to the pot body, thereby heating and cooking the food placed in the pot body.
Heat transfer, one of the modes of heat transfer, uses matter as a medium to transfer heat from a high temperature to a low temperature. The conduction is fast or slow, and it is related to the characteristics of the material itself. If it is a good thermal conductor, such as copper, aluminum and other metals, it can conduct heat quickly; if it is a poor thermal conductor, such as asbestos, fiberglass, etc., because of insulation properties It is not easy to conduct heat.
In the electric heating device disclosed in the electric cooker structure of the above patents, when the aluminum plate is heated, the aluminum plate conducts heat at a relatively high position in the relative position of the electric heating member, and the heat is further transmitted to the other side of the side, and the farther away from the electric heating member The slower the heat conduction, the heat degree of the aluminum plate as a whole will be affected by the proximity and distance of the heating element, which causes the temperature unevenness when heating the bottom of the pot body, and needs to be further improved.

The main purpose of the present invention is to solve the above problems and provide an electric kettle heating device to achieve uniform heating of the bottom of the inner liner.
The electric cooker is provided with a heat conducting plate on the outer side of the bottom of a liner. For the purposes of the foregoing, the heating device of the present invention comprises:
a heating plate having a first surface and a second surface on opposite sides, and having a roughness on the first mask, the roughness having a plurality of protrusions uniformly bulging on the first surface, attached to the The heat conducting plate at the bottom of the inner liner has a bonding surface facing away from the inner casing, the heating plate is combined with the heat conducting plate with the first surface facing the bonding surface, and the plurality of convex portions are uniformly contacted with the end portions of the ridges At the joint surface;
An electric heating member is coupled to the second surface of the heating plate and can be powered to heat the heating plate, and the heat is uniformly transmitted to the heat conducting plate through the end portion of the plurality of convex portions contacting the bonding surface for the inner portion Bile heating.
The plurality of convex portions are all in a ring shape, and are different in size and arranged in a concentric circle shape on the first surface.
The plurality of convex portions are linearly arranged on the first surface.
Wherein, the plurality of convex portions are in a dot shape and are evenly distributed on an area occupied by the first surface.
Wherein, the heating element is tubularly wound around the second surface of the heating plate, and the heating plate has a cover portion which is covered on the second surface along the path of the heating element.
The material of the inner tank is stainless steel, and the material of the heat conducting plate is aluminum or aluminum alloy, and the heat conducting plate is welded to the bottom of the inner tank by high pressure welding.
The above and other objects and advantages of the present invention will become more apparent from the detailed description and the accompanying drawings.
Of course, the present invention is allowed to differ in some of the parts, or the arrangement of the parts, but the selected embodiments are described in detail in the present specification, and the construction thereof is shown in the drawings.

1‧‧‧heating tray
11‧‧‧ first side
12‧‧‧ second side
13‧‧‧Rough
14‧‧‧ convex
141‧‧‧End
15‧‧‧ Cover
2‧‧‧Electric heating parts
3‧‧‧ liner
4‧‧‧heat conducting plate
41‧‧‧ joint surface
14A‧‧‧ convex
14B‧‧‧ convex

Fig. 1 is a perspective view showing the heating plate and the heat transfer sheet and the inner casing of the first embodiment of the present invention.
Figure 2 is a cross-sectional structural view of the heating plate and the heat-conducting plate of the first embodiment of the present invention. The third embodiment of the heating plate of the first embodiment of the present invention is a convex concentric circle. The plane structure diagram of the structure.
Fig. 4 is an enlarged partial cross-sectional view showing the joining surface of the heating plate of the first embodiment of the present invention which is contacted by the end portion of the convex portion on the joint surface of the heat conducting plate.
Fig. 5 is a plan view showing a configuration in which a rough portion of a heating disk of a second embodiment of the present invention is a linear convex portion.
Fig. 6 is a plan view showing a configuration in which the rough portion of the heating plate of the second embodiment of the present invention is a point-like convex portion.

Please refer to FIG. 1 to FIG. 6 , which shows the structure of the embodiment selected for the creation of the present invention. This is for illustrative purposes only and is not limited by the structure in the patent application.
The embodiment provides an electric kettle heating device, as shown in Figures 1 to 2, comprising a heating plate 1 and an electric heating member 2, the electric pan having a liner 3 and a heat conducting plate 4, and the heat conducting plate 4 is provided On the outside of the bottom of the liner 3, where:
As shown in Figures 1 to 3, the heating plate 1 has a first face 11 and a second face 12, the first face 11 and the second face 12 being located on opposite sides of the heating plate 1, and on the first face 11 The heat conducting plate 4 attached to the bottom of the inner liner 3 has a joint surface 41, and the joint surface 41 is attached to the heat conducting plate 4, and has a rough portion 13 having a plurality of convex portions 14 uniformly raised on the first surface 11. When the bottom of the inner tank 3 is facing away from the inner tank 3, the heating plate 1 is joined to the heat conducting plate 4 with its first surface 11 facing the joint surface 41, and the plurality of convex portions 14 are uniformly contacted at the joint surface with the raised end portion 141 at the joint surface 41.
In the present embodiment, the material of the inner tank 3 is stainless steel, and the material of the heat conducting plate 4 is aluminum material (or aluminum alloy in different embodiments), and the heat conducting plate 4 is welded to the bottom of the inner tank 3 by high pressure welding.
As shown in Figs. 1 to 2, the electric heating member 2 is coupled to the second surface 12 of the heating plate 1, and the electric heating member 2 can supply power to heat the heating plate 1, and the generated heat is contacted through the end portion 141 of the plurality of convex portions 14. The bonding surface 41 is uniformly conducted to the heat conducting plate 4 for heating the inner liner 3.
As shown in FIGS. 1 to 2, the electric heating member 2 is tubularly wound around the second surface 12 of the heating plate 1, and the heating plate 1 has a cover portion 15 on the second surface 12, whereby the cover portion 15 is wound around the electric heating member 2. The heating element 2 is covered with a path. Further, as shown in Fig. 4, the plurality of convex portions 14 are ring-shaped in this embodiment, and are arranged in a concentric shape on the first surface 11 in different sizes.
When the inner pot of the electric cooker is heated to cook the food, the electric heating element 2 in the cover portion 15 is supplied with power to start heating, and the generated heat is generated on the heating plate 1 by the second surface 12 Conducted in the direction of one side 11 , when heat is transmitted to the first surface 11 , it is transmitted to the end portion 141 via the convex portions 14 , and the end portion 141 contacts the bonding surface 41 to transfer heat to the heat conducting plate 4 The heat conduction 4 conducts heat to the bottom of the inner tank 3 to achieve the heating effect.
From the above description, it is not difficult to find that the present invention has an advantage in that all the convex portions 14 on the rough portion 13 are uniformly contacted at the joint surface 41 by the raised end portion 141, so that the heat generated by the electric heating member 2 is in the complex convex portion. When the end portion 141 of the portion 14 is conducted to the heat conducting plate 4, heat can be uniformly conducted to the bonding surface 41 that is in contact, so that the entire heat conducting plate 4 can be uniformly heated, and the bottom of the inner tube 3 to which the heat conducting plate 4 is attached is also Therefore, it can conduct heat evenly to obtain uniform heating effect.
Of course, there are still many examples of this creation, only the details change. Referring to FIG. 5, which is a second embodiment of the present invention, the main difference from the first embodiment is that the plurality of convex portions 14A are linearly arranged on the first surface 11. Although the convex portion 14A of the present embodiment and the convex portion 14 of the first embodiment are different in type, the bottom portion of the inner liner 3 can be uniformly heated to achieve the same effect as the first embodiment.
Referring to FIG. 6, which is a third embodiment of the present invention, the main difference from the first and second embodiments is that the plurality of convex portions 14B are in a dot shape and occupy the area occupied by the first surface 11. Evenly distributed. Although the convex portion 14B of the embodiment has different shapes from the convex portions 14 and 14A of the first and second embodiments, the bottom of the inner liner 3 can be uniformly heated to achieve the first and second The same efficacy of the examples.
The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention.
From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

1‧‧‧heating tray

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧Rough

14‧‧‧ convex

15‧‧‧ Cover

2‧‧‧Electric heating parts

3‧‧‧ liner

4‧‧‧heat conducting plate

41‧‧‧ joint surface

Claims (6)

An electric kettle heating device, wherein the electric cooker is provided with a heat conducting plate on the outer side of a bottom of the inner tank, and the heating device comprises:
a heating plate having a first surface and a second surface on opposite sides, and having a roughness on the first mask, the roughness having a plurality of protrusions uniformly bulging on the first surface, attached to the The heat conducting plate at the bottom of the inner liner has a bonding surface facing away from the inner casing, the heating plate is combined with the heat conducting plate with the first surface facing the bonding surface, and the plurality of convex portions are uniformly contacted with the end portions of the ridges At the joint surface;
An electric heating member is coupled to the second surface of the heating plate and can be powered to heat the heating plate, and the heat is uniformly transmitted to the heat conducting plate through the end portion of the plurality of convex portions contacting the bonding surface for the inner portion Bile heating. The electric kettle heating device according to claim 1, wherein the plurality of convex portions are in a ring shape and are different in size and arranged in a concentric shape on the first surface. The electric kettle heating device according to claim 1, wherein the plurality of convex portions are linearly arranged on the first surface. The electric kettle heating device according to claim 1, wherein the plurality of convex portions are in a dot shape and are evenly distributed over an area occupied by the first surface. The electric kettle heating device according to claim 1, wherein the electric heating member is tubularly wound around the second surface of the heating plate, and the heating plate has a path along the electric heating member on the second surface. Cover the cover. The electric kettle heating device according to claim 1, wherein the inner casing is made of stainless steel, and the heat conducting plate is made of aluminum or aluminum alloy, and the heat conducting plate is welded to the bottom of the inner tank by high pressure welding.