Heating body structure
By setting multiple gradually shrinking pyramid protrusions on the upper shell surface of the rice cooker to form a heat conduction channel, the problem of uneven heat distribution of the electric heating plate is solved, and multiple points uniform heating of the inner pot is achieved.
Patent Information
- Application Number
- CN202420790060.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-16
AI Technical Summary
When the electric heating plate of the existing rice cooker transfers heat, the heat distribution is uneven, resulting in uneven heating of the food in the inner pot.
A heating body structure is designed, including an upper shell, a heating assembly and a chassis assembly. A plurality of gradually shrinking pyramid protrusions are provided on the upper shell surface to form a heat conduction channel to improve the uniform distribution of heat.
Through the design of multiple pyramid protruding blocks and heat conduction channels on the upper shell surface, the uniform distribution of heat is achieved, so that the inner pot can be heated evenly by multiple points, solving the problem of uneven heat distribution.
Smart Images
Figure CN222691882U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric rice cookers, in particular to a heating element structure. Background Art
[0002] The heating plate is the main heating body of the rice cooker. It is an aluminum alloy disc with an embedded electric heating element. The inner pot is placed on it and you can take out the inner pot to see it.
[0003] The heat-conducting contact method between the electric heating plate and the inner pot on the market is single, and the electric heating plate can only rely on the resistance conductor to generate heat, resulting in uneven heat transfer on the surface of the electric heating plate, and the food in the inner pot cannot be heated evenly. Utility Model Content
[0004] The purpose of the utility model is to provide a heating element structure to solve the above problems.
[0005] According to one aspect of the utility model, a heating body structure is provided, comprising: an upper shell, a heating component and a chassis component, the edge of the upper shell is extended downward to provide a side panel, the bottom of the side panel is bent inward to form a receiving groove for placing the chassis component, the heating component is clamped between the upper shell and the chassis component, the top surface and the bottom surface of the upper shell are respectively evenly provided with a plurality of pyramidal protrusions that gradually shrink toward the middle, and the edges of the plurality of pyramidal protrusions are combined to form a heat conduction channel.
[0006] In some embodiments, an insulating heat conductor is sandwiched between the upper shell and the heating component, the top and bottom surfaces of the insulating heat conductor are both planar structures, the top surface of the insulating heat conductor contacts the end of the pyramidal protrusion on the bottom surface of the upper shell, the top surface of the heating component is a planar structure, and the bottom surface of the insulating heat conductor contacts the top surface of the heating component.
[0007] In some embodiments, an insulating body is sandwiched between the heat generating component and the chassis component.
[0008] In some embodiments, the heating body includes an upper shell, an insulating heat conductor, a heating component, an insulating thermal insulator and a chassis component from top to bottom; the upper shell, the insulating heat conductor, the heating component, the insulating thermal insulator and the chassis component are circular structures, and the middle parts of the upper shell, the insulating heat conductor, the heating component, the insulating thermal insulator and the chassis component are provided with through holes for the magnetic steel limiter to pass through.
[0009] In some embodiments, the heating component includes an electric heating plate and a conductive pin, and a side of the insulating body is provided with an avoidance groove for the conductive pin to pass through.
[0010] In some embodiments, a socket for the conductive pin to pass through is formed on one side of the chassis assembly, and an insulator is sleeved in the socket.
[0011] In some embodiments, the pyramidal protrusion blocks located in the middle and edge of the upper shell have seven edges, the remaining pyramidal protrusion blocks have eight edges, and the edges of adjacent pyramidal protrusion blocks are connected.
[0012] In some embodiments, the insulating thermal conductor is an alumina ceramic plate.
[0013] In some embodiments, the insulating body is a fiberglass board.
[0014] In some embodiments, the upper shell is made of aluminum alloy.
[0015] Compared with the prior art, the beneficial effects of this application are:
[0016] The upper shell surface of the present application is provided with a plurality of pyramidal protrusions, and heat is quickly conducted between adjacent pyramidal protrusions through heat conduction channels, so that the heat distribution on the upper shell surface is more uniform, so that after the inner pot contacts the upper shell, the inner pot can be evenly heated at multiple points. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0019] Figure 3 It is a schematic diagram of a side cross-sectional structure of the utility model;
[0020] Figure 4 It is a schematic diagram of the bottom three-dimensional structure of the upper cover of the utility model;
[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the pyramid protrusion block of the utility model;
[0022] Figure 6 It is a schematic diagram of the bottom three-dimensional structure of the heating component of the utility model;
[0023] Figure 7 It is a three-dimensional structural schematic diagram of the chassis assembly of the utility model. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] refer to Figures 1 to 7 The present application provides a heating body structure, including: an upper shell 1, a heating component 2 and a chassis component 3. The edge of the upper shell 1 is extended downward to form a side panel 4. The bottom of the side panel 4 is bent inward to form a receiving groove 5 for placing the chassis component 3. The heating component 2 is clamped between the upper shell 1 and the chassis component 3. The top surface and the bottom surface of the upper shell 1 are evenly distributed with a plurality of pyramidal protrusions 6 that gradually shrink toward the middle. The edges of the plurality of pyramidal protrusions 6 are combined to form a heat conduction channel 7.
[0026] In some embodiments, an insulating heat conductor 8 is sandwiched between the upper shell 1 and the heating component 2. The top and bottom surfaces of the insulating heat conductor 8 are both planar structures. The top surface of the insulating heat conductor 8 contacts the end of the pyramidal protrusion 6 on the bottom surface of the upper shell 1. The top surface of the heating component 2 is a planar structure, and the bottom surface of the insulating heat conductor 8 contacts the top surface of the heating component 2. The insulating heat conductor 8 can export the heat generated by the heating component 2 to the upper shell 1 while isolating the current.
[0027] In some embodiments, an insulating heat insulator 9 is sandwiched between the heating component 2 and the chassis component 3. The insulating heat insulator 9 can prevent heat from being lost to the chassis component 3 while isolating the current, thereby better keeping the heat.
[0028] In some embodiments, the heating body includes an upper shell 1, an insulating thermal conductor 8, a heating component 2, an insulating thermal insulator 9 and a chassis component 3 from top to bottom; the upper shell 1, the insulating thermal conductor 8, the heating component 2, the insulating thermal insulator 9 and the chassis component 3 are in a circular structure, and a through hole 10 for the magnetic steel limiter to pass through is opened in the middle of the upper shell 1, the insulating thermal conductor 8, the heating component 2, the insulating thermal insulator 9 and the chassis component 3.
[0029] In some embodiments, the heating component 2 includes an electric heating plate 11 and a conductive pin 12 , and a side of the insulating body 9 is provided with an avoidance groove for the conductive pin 12 to pass through.
[0030] In some embodiments, a socket 13 for the conductive pin 12 to pass through is opened on one side of the chassis assembly 3 , and an insulator 14 is sleeved in the socket 13 to prevent current from flowing into the chassis assembly 3 .
[0031] In some embodiments, the pyramidal protrusion blocks 6 located in the middle and edge of the upper shell 1 have seven edges, and the remaining pyramidal protrusion blocks 6 have eight edges. The edges of adjacent pyramidal protrusion blocks 6 are connected, and heat can quickly reach the end points of each pyramidal protrusion block 6 through the heat conduction channel 7.
[0032] In some embodiments, the insulating thermal conductor 8 is an alumina ceramic plate, which has good insulation and thermal conductivity. Similarly, materials with the above characteristics can also be used as the insulating thermal conductor 8 in this embodiment.
[0033] In some embodiments, the insulating and heat-insulating body 9 is a glass fiber board. Glass fiber has good insulation and heat-insulating properties. Similarly, materials with the above characteristics can also be used as the insulating and heat-insulating body 9 in this embodiment.
[0034] In some embodiments, the upper shell 1 is made of aluminum alloy, which is a material with excellent thermal conductivity, and its thermal conductivity coefficient is higher than many other materials.
[0035] The specific heating and heat conduction principle of the present application is as follows: the electric heating plate 11 in the heating component 2 generates heat after being powered on, and the heat is transferred to the bottom surface of the upper shell 1 through the insulating heat conductor 8. The heat is transferred to the entire upper shell 1 through the end of the pyramidal protrusion block 6 on the bottom surface of the upper shell 1. The heat can also be transferred between the ends of the pyramidal protrusion block 6 on the top surface of the upper shell 1 through the heat conduction channel 7, so that the heat is more uniform when in contact with the inner pot.
[0036] The surface of the upper shell 1 of the present application is provided with a plurality of pyramidal protrusions 6, and heat is quickly conducted between adjacent pyramidal protrusions 6 through heat conduction channels 7, so that the heat distribution on the surface of the upper shell 1 is more uniform, so that after the inner pot contacts the upper shell 1, the inner pot can be heated uniformly at multiple points.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A heating element structure, characterized in that: include: An upper shell, a heating component and a chassis component, wherein a side panel is extended downward from the edge of the upper shell, and the bottom of the side panel is bent inward to form a receiving groove for placing the chassis component, the heating component is clamped between the upper shell and the chassis component, and the top surface and the bottom surface of the upper shell are respectively evenly distributed with a plurality of pyramidal protrusions that gradually shrink toward the middle, and the edges of the plurality of pyramidal protrusions are combined to form a heat conduction channel.
2. The heating element structure according to claim 1, characterized in that: An insulating heat conductor is sandwiched between the upper shell and the heating component. The top and bottom surfaces of the insulating heat conductor are both planar structures. The top surface of the insulating heat conductor contacts the end of the pyramidal protrusion on the bottom surface of the upper shell. The top surface of the heating component is a planar structure, and the bottom surface of the insulating heat conductor contacts the top surface of the heating component.
3. The heating element structure according to claim 2, characterized in that: An insulating body is sandwiched between the heating component and the chassis component.
4. The heating element structure according to claim 3, characterized in that: The heating body includes an upper shell, an insulating heat conductor, a heating component, an insulating heat insulator and a chassis component from top to bottom; the upper shell, the insulating heat conductor, the heating component, the insulating heat insulator and the chassis component are circular structures, and the middle parts of the upper shell, the insulating heat conductor, the heating component, the insulating heat insulator and the chassis component are all provided with through holes for the magnetic steel limiter to pass through.
5. The heating element structure according to claim 3, characterized in that: The heating component comprises an electric heating plate and a conductive pin, and a side of the insulating body is provided with an avoidance groove for the conductive pin to pass through.
6. The heating element structure according to claim 5, characterized in that: One side of the chassis component is provided with a plug hole for the conductive pin to pass through, and an insulator is sleeved in the plug hole.
7. The heating element structure according to claim 1, characterized in that: The pyramidal protrusion blocks located in the middle and edge of the upper shell have seven edges, and the remaining pyramidal protrusion blocks have eight edges. The edges of adjacent pyramidal protrusion blocks are connected.
8. The heating element structure according to claim 2, characterized in that: The insulating heat conductor is an alumina ceramic plate.
9. The heating element structure according to claim 3, characterized in that: The insulating body is a glass fiber board.
10. The heating element structure according to claim 1, characterized in that: The upper shell is made of aluminum alloy.