A heating plate

Abstract

This utility model relates to a heating plate, including a heating plate body, which is composed of an aluminum heat-conducting plate and a horseshoe-shaped heating tube. The aluminum heat-conducting plate is made of a single layer of material, and the heating tube is connected to the bottom surface of the aluminum heat-conducting plate. The entire top surface of the aluminum heat-conducting plate is flat. The heating plate with this structure is composed of a single layer of high thermal conductivity metal plate, which reduces the cost of raw materials and eliminates the need for the brazing process of the double-layer structure of the heating plate, thus minimizing processing costs.

Description

Technical Field

[0001] This utility model relates to the field of heating plates, specifically a heating plate. Background Technology

[0002] To improve food safety, electric kettles are currently made entirely of glass. A heating element on the bottom of the glass kettle heats the water inside. However, during the manufacturing process, it's difficult to ensure a 100% flat surface between the bottom of the glass kettle and the contact surface (top) of the heating element. This results in gaps between the heating element and the bottom of the glass kettle, affecting heat transfer efficiency and reducing the heating speed. Therefore, some electric kettles undergo a process where the bottom of the glass kettle is ground flat during manufacturing. On the other hand, the top surface of the heating plate is machined flat on a lathe to ensure that the bottom surface of the glass kettle body and the top surface of the heating plate can make full contact, thus solving the above problems. However, the grinding and flattening processes greatly increase the processing cost of the heating plate. In addition, the heating plate includes a double-layer metal heat-conducting structure, with the top layer being stainless steel or other metal materials. The connection between the two metal heat-conducting structures requires a brazing process, which further increases the processing cost of the heating plate. Therefore, compared with other heating plates, it has no competitive advantage. Thus, the structure of the heating plate used in all-glass kettle bodies needs further improvement. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned existing problems and provide a heating plate with a simple and reasonable structure.

[0004] A heating plate includes a heating plate body, characterized in that: the heating plate body is composed of an aluminum heat-conducting plate and a horseshoe-shaped heating tube, the aluminum heat-conducting plate is made of a single layer of material, the heating tube is connected to the bottom surface of the aluminum heat-conducting plate, and the entire top surface of the aluminum heat-conducting plate is flat.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, the bottom surface of the aluminum heat-conducting plate is connected with several internally threaded connecting posts for installing couplers within the area enclosed by the heating tube.

[0007] As a further embodiment, the aluminum heat-conducting plate is provided with a clearance hole, which is located between the two ends of the heating tube.

[0008] As a further solution, each internally threaded connecting post is provided with a rivet head at its top. The aluminum heat-conducting plate is provided with a number of rivet holes corresponding to the number of rivet heads. The rivet head is inserted through the rivet holes to achieve riveting, thereby fixing the internally threaded connecting post to the bottom surface of the aluminum heat-conducting plate.

[0009] As a further solution, the aluminum heat-conducting plate has several foolproof structures circumferentially arranged around its edge for positioning the heating plate body.

[0010] As a further embodiment, the foolproof structure includes a plurality of first foolproof notches, which are evenly distributed circumferentially on the edge of the aluminum heat-conducting plate; and the bottom edge of the first foolproof notch is arc-shaped.

[0011] As a further solution, the error prevention structure also includes a second error prevention notch, which is formed between two adjacent first error prevention notches and is equidistant from the two first error prevention notches; and the bottom edge of the second error prevention notch is straight.

[0012] As a further embodiment, the thickness of the aluminum heat-conducting plate is H, and 1mm≤H1≤3mm.

[0013] As a further solution, the heating element is connected to the bottom surface of the aluminum heat-conducting plate by brazing.

[0014] As a further embodiment, the number of internally threaded connecting posts is three, and the three internally threaded connecting posts are arranged in an equilateral triangle.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model discloses a heating plate, which is composed of a single layer of high thermal conductivity metal plate, reducing raw material costs and eliminating the need for the brazing process of a double-layer heating plate, thus minimizing processing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heating plate body structure in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal threaded connecting column connection structure in this utility model.

[0019] Figure 3 This is a schematic cross-sectional view of the heating plate body of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the heating plate body coated with thermally conductive silicone grease according to this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See Figures 1 to 4As shown, a heating plate includes a heating plate body 1, which is composed of an aluminum heat-conducting plate 2 and a horseshoe-shaped heating tube 3. The aluminum heat-conducting plate 2 is made of a single layer of material, and the heating tube 3 is connected to the bottom surface of the aluminum heat-conducting plate 2 by brazing. The entire top surface of the aluminum heat-conducting plate 2 is flat and is used to coat the entire top surface with thermal grease 5 and adhere it to the bottom surface of the glass pot body. The heating plate of this structure is composed of a single layer of high thermal conductivity metal plate, which reduces the cost of raw materials and eliminates the need for the brazing process of the double-layer structure of the heating plate, thus minimizing the processing cost.

[0023] Thermal grease 5 can be applied to the entire top surface of the aluminum heat sink 2, or, depending on the diameter of the bottom of the glass container, only applied to the middle of the top surface (e.g., Figure 4 (As shown).

[0024] The aluminum heat-conducting plate 2 has a clearance hole 201, which is located between the two ends of the heating tube 3. This allows the temperature sensor to protrude through the clearance hole 201 onto the upper side of the aluminum heat-conducting plate 2 and directly contact the bottom surface of the kettle.

[0025] The bottom surface of the aluminum heat-conducting plate 2 is connected to three internally threaded connecting posts 4 for installing couplers within the area enclosed by the heating tube 3; the three internally threaded connecting posts 4 are arranged in an equilateral triangle manner, and the coupler or temperature controller can be fastened to the bottom surface of the aluminum heat-conducting plate 2 through the internally threaded connecting posts 4.

[0026] The specific installation method of the internal threaded connecting post 43 is as follows: each internal threaded connecting post 4 is provided with a rivet head 41 at its top end, and the aluminum heat-conducting plate 2 is provided with a number of rivet through holes 202 corresponding to the number of rivet heads 41. After the rivet head 41 passes through the rivet through holes 202, it is riveted to fix the internal threaded connecting post 4 to the bottom surface of the aluminum heat-conducting plate 2. The shapes of the rivet head 41 and the rivet through holes 202 are preferably circular or hexagonal.

[0027] In the best case, the top surface of the rivet 41 is flush with the top surface of the aluminum heat-conducting plate 2, keeping the top surface of the aluminum heat-conducting plate 2 flat. After the heating plate is installed, the rivet 41 will not press against the bottom of the pot body. However, in other cases, the top surface of the rivet 41 and the top surface of the aluminum heat-conducting plate 2 transition smoothly, and at least the protrusion cannot be felt by hand.

[0028] The aluminum heat-conducting plate 2 has several foolproof structures around its edge for positioning the heating plate body 1.

[0029] In this embodiment, the foolproof structure includes four first foolproof notches 203, which are evenly distributed around the edge of the aluminum heat-conducting plate 2; and the bottom edge of the first foolproof notches 203 is arc-shaped; the first foolproof notches 203 can avoid structures such as connecting columns during installation and at the same time play a foolproof role.

[0030] In addition, the four first foolproof notches 203 are distributed in pairs on both sides of the symmetrical line X of the aluminum heat conduction plate 2.

[0031] The anti-mistake structure also includes a second anti-mistake notch 204, which is formed between two adjacent first anti-mistake notches 203 and is equally spaced from the two first anti-mistake notches 203; and the bottom edge of the second anti-mistake notch 204 is straight; the second anti-mistake notch 204 can cooperate with the specially matched anti-mistake protrusion during installation, so that the heating plate can be installed on the bottom surface of the glass pot at a specified placement angle.

[0032] In addition, the second anti-fooling notch 204 and the clearance hole 201 are both provided in the above-mentioned line of symmetry.

[0033] The thickness of the aluminum heat-conducting plate 2 is preferably between 1mm and 3mm. In this embodiment, the thickness H is selected as 2mm, which is between 1mm and 3mm. This thickness allows the aluminum heat-conducting plate 21 to have sufficient strength and is not easily bent or deformed.

[0034] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A heating plate, comprising a heating plate body, characterized in that: The heating plate body consists of an aluminum heat-conducting plate and a horseshoe-shaped heating tube. The aluminum heat-conducting plate is made of a single layer of material, and the heating tube is connected to the bottom surface of the aluminum heat-conducting plate. The entire top surface of the aluminum heat-conducting plate is flat.

2. A heating plate according to claim 1, characterized in that: The bottom surface of the aluminum heat-conducting plate is connected with several internally threaded connecting posts for installing couplers within the area enclosed by the heating tube.

3. A heating plate according to claim 1, characterized in that: The aluminum heat-conducting plate has a clearance hole located between the two ends of the heating element.

4. A heating plate according to claim 2, characterized in that: Each internally threaded connecting post is provided with a rivet head at its top. The aluminum heat-conducting plate is provided with a number of rivet holes corresponding to the number of rivet heads. The rivet head is inserted through the rivet holes to achieve riveting, thereby fixing the internally threaded connecting post to the bottom surface of the aluminum heat-conducting plate.

5. A heating plate according to claim 1, characterized in that: The aluminum heat-conducting plate has several foolproof structures around its edge for positioning the heating plate body.

6. A heating plate according to claim 5, characterized in that: The foolproof structure includes several first foolproof notches, which are evenly distributed circumferentially on the edge of the aluminum heat-conducting plate; and the bottom edge of the first foolproof notch is arc-shaped.

7. A heating plate according to claim 6, characterized in that: The error prevention structure also includes a second error prevention notch, which is opened between two adjacent first error prevention notches and is equidistant from the two first error prevention notches; and the bottom edge of the second error prevention notch is straight.

8. A heating plate according to claim 1, characterized in that: The thickness of the aluminum heat-conducting plate is H, and 1mm≤H1≤3mm.

9. A heating plate according to claim 1, characterized in that: The heating element is connected to the bottom surface of the aluminum heat-conducting plate by brazing.

10. A heating plate according to claim 2, characterized in that: The number of internal threaded connecting posts is three, and the three internal threaded connecting posts are arranged in an equilateral triangle.

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