Heat conduction fixing structure of electric kettle

Abstract

The utility model relates to a heat conduction fixing structure of an electric kettle, which comprises a kettle body and an electric heating device, and further comprises a heat conduction disc, a flexible inner ring and a fixed outer ring, fractures are formed in the flexible inner ring, an elastic structure is arranged between the fractures, the flexible inner ring is tightly hooped in the clamping groove through the elastic structure, and an external thread part is arranged on the outer side face of the flexible inner ring. The inner side face of the fixing outer ring is provided with an internal thread part corresponding to the external thread part, the bottom of the fixing outer ring extends towards the inner circumference to form a supporting ring, the edge of the heat conduction disc abuts against the supporting ring, and after the fixing outer ring is connected with the flexible inner ring in a screwed mode through matching of the internal thread part and the external thread part, the supporting ring tightly presses the heat conduction disc on the outer bottom face of the kettle body. The electric heating device is connected with or close to the lower side of the heat conducting disc; the heat conduction disc of the all-glass kettle is fixed in a threaded fastening mode, the assembling speed of the electric kettle can be increased, the structure is simpler, the production efficiency is improved, and meanwhile the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of electric kettles, in particular to a heat-conducting fixing structure of an electric kettle. Background Art

[0002] At present, in order to improve the appearance of electric kettles, more and more electric kettles use all-glass kettle bodies as the kettle body for holding water waiting to be heated. Since the glass kettle body is usually a one-piece shape, in order to facilitate the installation of heating elements such as a heating plate, the heating plate can generally be set at the bottom of the glass kettle body, as shown in the kettle body and liquid heater of Chinese patent document, application number: CN201721489842.3, in which a heat conduction plate is installed between the bottom of the kettle and the electric heating device to conduct heat to the electric heating device on the bottom of the kettle. However, the heat conduction plate needs to be fixed by multiple structures such as fixing glue and heat insulation rings, which makes the installation structure complicated and the installation process complicated, resulting in low production efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned existing problems and provide a heat-conducting fixing structure of an electric kettle with a simple and reasonable structure.

[0004] A heat-conducting fixed structure for an electric kettle comprises a kettle body and an electric heating device made of an integral whole of glass, and further comprises a heat-conducting plate, a flexible inner ring and a fixed outer ring, wherein a slot is provided around the bottom of the kettle body; a fracture is provided on the flexible inner ring, and an elastic structure is provided between the fractures, the flexible inner ring is tightly clamped in the slot by the elastic structure, and an external thread portion is provided on the outer side surface of the flexible inner ring; an internal thread portion is provided on the inner side surface of the fixed outer ring corresponding to the external thread portion, a supporting ring is extended inwardly from the bottom of the fixed outer ring, the edge of the heat-conducting plate is abutted against the supporting ring, and after the fixed outer ring is screwed and connected to the flexible inner ring through the internal thread portion and the external thread portion, the supporting ring presses the heat-conducting plate against the outer bottom surface of the kettle body, and the electric heating device is in contact with or close to the lower side of the heat-conducting plate.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, a first silicone shock-absorbing ring is arranged between the flexible inner ring and the slot, and a second silicone shock-absorbing ring is arranged between the support ring and the heat-conducting plate. The first silicone shock-absorbing ring and the second silicone shock-absorbing ring are split structures or integrally formed.

[0007] As a further solution, the tightening structure includes a threaded hole and a bolt. A threaded hole is provided on one side of the fracture, and a connecting through hole is provided on the other side of the fracture. The bolt passes through the connecting through hole and the threaded hole in sequence, so that the fracture of the flexible inner ring is connected and tightly clamped in the slot.

[0008] As a further solution, a limiting step surface is provided on the lower side of the slot, and the flexible inner ring is provided with an upper part whose thickness is greater than that of the lower part, and a stop end surface is formed between the upper and lower parts. The upper part of the flexible inner ring is tightly clamped in the slot, and its stop end surface is abutted against the upper side of the limiting step surface.

[0009] As a further solution, the kettle body includes a kettle body and a kettle bottom. The kettle bottom is arranged in a concave disc shape and has a diameter smaller than the kettle body. The card slot is opened on the outer side of the kettle bottom. After the flexible inner ring and the fixed outer ring are fastened to the kettle bottom, the flexible inner ring and the fixed outer ring are hidden on the lower side of the kettle body.

[0010] As a further solution, the bottom of the kettle body is also connected to a kettle bottom protective shell, the top of the kettle bottom protective shell is limited and abuts against the bottom surface of the kettle body, and an assembly cavity is formed between the kettle bottom protective shell and the bottom surface of the kettle body, and the heat conduction plate, flexible inner ring, fixed outer ring and electric heating device are arranged in the assembly cavity.

[0011] As a further solution, an electric coupler is also provided in the assembly cavity, and the electric coupler is arranged on the lower side of the electric heating device and is fastened thereto, and the bottom protective shell of the pot is arranged on the lower side of the electric coupler and is fastened thereto, and a coupling avoidance hole is provided in the bottom protective shell of the pot corresponding to the electric coupler.

[0012] As a further solution, a disc cavity is recessed on the upper side of the heat-conducting disc, and a sealed heat-conducting cavity is formed between the disc cavity and the outer bottom surface of the kettle body. The heat-conducting cavity is filled with a heat-conducting medium in contact with the bottom surface of the kettle body.

[0013] As a further solution, the heat-conducting medium includes thermal grease or thermal oil.

[0014] As a further solution, the electric heating device is one of a heating plate, a heating film, and an electromagnetic coil, and the electric heating device is connected to the bottom surface of the heat-conducting plate.

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

[0016] This all-glass kettle first forms an external thread structure on the bottom of the kettle body through a flexible inner ring, which can reduce the difficulty of firing the glass kettle body. The external thread formed by this method is more precise and has a smaller error, which can improve the yield of the kettle body. The heat conduction plate is fixed by threaded fastening, which can speed up the assembly speed of the electric kettle. The structure is simpler, which can improve production efficiency and reduce production costs.

[0017] In addition, the electric kettle can also use a heat-conducting medium to fill the gap between the heat-conducting plate and the bottom of the kettle body. When the heat-conducting medium is in full contact with the bottom of the kettle body, the heat conduction is more uniform and the heat transfer effect is good, which facilitates precise temperature control, and makes the heating or cooling of the glass kettle bottom slow, avoiding drastic changes in the temperature of the glass kettle bottom, ensuring the safety of the glass kettle bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic cross-sectional view of the first embodiment of the present invention.

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Figure 3 This is a schematic diagram of the exploded structure of Example 1 of the present utility model.

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point B in the middle.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the electric kettle in the present utility model.

[0023] Figure 6 This is a schematic cross-sectional view of the second embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1:

[0025] See also Figures 1 to 5 As shown, a heat-conducting fixed structure of an electric kettle includes a kettle body 1 and a heating plate 2 made of all-glass, and also includes a heat-conducting plate 3, a flexible inner ring 4 and a fixed outer ring 5. A slot 101 is opened around the bottom of the kettle body 1; a fracture 401 is provided on the flexible inner ring 4, and an elastic structure is provided between the fractures 401. The flexible inner ring 4 is tightly clamped in the slot 101 by the elastic structure, and the outer side surface of the flexible inner ring 4 is provided with an external threaded portion 41; an internal threaded portion 51 is provided on the inner side surface of the fixed outer ring 5 corresponding to the external threaded portion 41, and a supporting ring 52 extends inwardly from the bottom of the fixed outer ring 5, and the edge of the heat-conducting plate 3 is abutted on the supporting ring 52. After the fixed outer ring 5 is screwed and connected to the flexible inner ring 4 through the internal threaded portion 51 and the external threaded portion 41, the supporting ring 52 presses the heat-conducting plate 3 against the outer bottom surface of the kettle body 1, and the heating plate 2 is connected to the lower side of the heat-conducting plate 3.

[0026] This all-glass kettle first forms an external thread structure at the bottom of the kettle body 1 through a flexible inner ring 4, which can reduce the difficulty of firing the glass kettle body 1. In addition, the external thread part 41 formed in this way has higher precision and smaller error, which can improve the yield of the kettle body 1. The heat conduction plate 3 is fixed by a threaded fastening method, which can speed up the assembly speed of the electric kettle. The structure is simpler, which can improve production efficiency and reduce production costs.

[0027] A first silicone shock-absorbing ring 6 is arranged between the flexible inner ring 4 and the slot 101, and a second silicone shock-absorbing ring 7 is arranged between the supporting ring 52 and the heat-conducting plate 3. The first silicone shock-absorbing ring 6 and the second silicone shock-absorbing ring 7 are split structures or integrally formed; when the flexible inner ring 4 and the fixed outer ring 5 are installed in sequence, the first silicone shock-absorbing ring 6 and the second silicone shock-absorbing ring 7 can play a buffering role to prevent the flexible inner ring 4 and the supporting ring 52 from pressing the heat-conducting plate 33 to make hard contact with the glass pot body 11, causing the pot body 1 to break.

[0028] The tightening and loosening structure includes a threaded hole 81 and a bolt 82. A threaded hole 81 is provided on one side of the fracture 401, and a connecting through-hole 83 is provided on the other side of the fracture 401. The bolt 82 passes through the connecting through-hole 83 and the threaded hole 81 in sequence, so that the fracture 401 of the flexible inner ring 4 is connected and tightly clamped in the slot 101; this structure allows the flexible inner ring 4 to be fully opened, making it easy to insert the flexible inner ring 4 into the slot 101. After the bolt 82 is tightened, the flexible inner ring 4 is tightened, so that it is tightly clamped in the slot 101, and is not easy to loosen, but is easy to disassemble and replace.

[0029] A limiting step surface 102 is provided on the lower side of the slot 101, and the flexible inner ring 4 is provided with an upper part whose thickness is greater than that of the lower part, and a stop end surface 402 is formed between the upper and lower parts. The upper part of the flexible inner ring 4 is tightly clamped in the slot 101, and its stop end surface 402 is abutted against the upper side of the limiting step surface 102; when the flexible inner ring 4 is pulled downward, the flexible inner ring 4 is prevented from sliding downward, thereby playing a better limiting role and making the connection more secure.

[0030] The kettle body 1 includes a kettle body 11 and a kettle bottom 12. The kettle bottom 12 is arranged in a concave disc shape and has a diameter smaller than the kettle body 11. The clamping groove 101 is provided on the outer side of the kettle bottom 12. After the flexible inner ring 4 and the fixed outer ring 5 are fastened to the kettle bottom 12, the flexible inner ring 4 and the fixed outer ring 5 are hidden on the lower side of the kettle body 11.

[0031] The bottom 12 of the kettle installed with the flexible inner ring 4 and the fixed outer ring 5 can reserve space for the bottom protective shell 9. After the bottom protective shell 9 is installed, the bottom protective shell 9 maintains a smooth transition with the outer surface of the kettle body 1, making the overall lines of the kettle body 1 more beautiful.

[0032] The bottom of the kettle body 1 is also connected to a kettle bottom protection shell 9, and the top of the kettle bottom protection shell 9 is limited to the bottom surface of the kettle body 11. An assembly cavity 10 is formed between the kettle bottom protection shell 9 and the bottom surface of the kettle body 1, and the heat conducting plate 3, flexible inner ring 4, fixed outer ring 5 and heating plate 2 are arranged in the assembly cavity 10.

[0033] An electric coupler 13 is also provided in the assembly cavity 10. The electric coupler 13 is arranged on the lower side of the heating plate 2 and is tightly connected thereto. The bottom protective shell 9 is arranged on the lower side of the electric coupler 13 and is tightly connected thereto. A coupling avoidance hole 901 is provided in the bottom protective shell 9 corresponding to the electric coupler 13. The bottom protective shell 9 is mainly made of plastic. The bottom protective shell 9 can hide the heat conducting plate 3 and the heating plate 2. It is safe to use and can protect the all-glass bottom 12 of the pot to avoid collisions of the bottom 12, making it convenient for the pot body 1 to be directly placed.

[0034] In addition, a water inlet valve core 15 is provided at the center of the electric coupler 13, and the water inlet valve core 15 is connected to the water inlet pipe. A water inlet 16 or a water outlet is opened on the kettle body 1, and the water inlet valve core 15 is connected to the water inlet or the water outlet through the water inlet pipe 16. Example 2:

[0035] See also Figure 6 As shown, a cavity is formed on the upper side of the heat-conducting plate 3, and a sealed heat-conducting cavity is formed between the cavity and the outer bottom surface of the kettle body 1. The heat-conducting cavity is filled with a heat-conducting medium 14 in contact with the bottom surface of the kettle body 1;

[0036] This electric kettle can also use a heat-conducting medium 14 to fill the gap between the heat-conducting plate 3 and the bottom surface of the kettle body 1. When the heat-conducting medium 14 is in full contact with the bottom surface of the kettle body 1, the heat conduction is more uniform and the heat transfer effect is good, which facilitates precise temperature control, so that the heating or cooling of the glass kettle bottom 12 is slowed down, avoiding drastic changes in the temperature of the glass kettle bottom 1212, and ensuring the safety of the glass kettle bottom 12.

[0037] The heat conducting medium 14 is preferably thermal grease, and in other embodiments, it can be replaced by thermal oil.

[0038] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A heat-conducting fixed structure for an electric kettle, comprising a kettle body and an electric heating device made of an integral all-glass structure, characterized in that: It also includes a heat-conducting plate, a flexible inner ring and a fixed outer ring, and a slot is opened around the bottom of the kettle body; the flexible inner ring is provided with a fracture, and an elastic structure is provided between the fractures, the flexible inner ring is tightly clamped in the slot by the elastic structure, and the outer side surface of the flexible inner ring is provided with an external threaded portion; the inner side surface of the fixed outer ring is provided with an internal threaded portion corresponding to the external threaded portion, and a supporting ring is extended inwardly from the bottom of the fixed outer ring, and the edge of the heat-conducting plate is supported on the supporting ring. After the fixed outer ring is screwed and connected with the flexible inner ring through the internal threaded portion and the external threaded portion, the supporting ring presses the heat-conducting plate to the outer bottom surface of the kettle body, and the electric heating device is connected to or close to the lower side of the heat-conducting plate.

2. The heat-conducting fixing structure of an electric kettle according to claim 1, characterized in that: A first silicone shock-absorbing ring is provided between the flexible inner ring and the slot, and a second silicone shock-absorbing ring is provided between the support ring and the heat-conducting plate. The first silicone shock-absorbing ring and the second silicone shock-absorbing ring are split structures or integrally formed.

3. The heat-conducting fixing structure of an electric kettle according to claim 1, characterized in that: The tightening structure includes a threaded hole and a bolt. A threaded hole is provided on one side of the fracture, and a connecting through hole is provided on the other side of the fracture. The bolt passes through the connecting through hole and the threaded hole in sequence, so that the fracture of the flexible inner ring is connected and tightly clamped in the slot.

4. The heat-conducting fixing structure of an electric kettle according to claim 1, characterized in that: A limiting step surface is provided on the lower side of the slot, and the flexible inner ring is provided with an upper part whose thickness is greater than that of the lower part, and a stop end surface is formed between the upper and lower parts. The upper part of the flexible inner ring is tightly clamped in the slot, and its stop end surface is against the upper side of the limiting step surface.

5. The heat-conducting fixing structure of an electric kettle according to claim 4, characterized in that: The kettle body includes a kettle body and a kettle bottom. The kettle bottom is arranged in a concave disc shape and has a diameter smaller than the kettle body. The card slot is opened on the outer side of the kettle bottom. After the flexible inner ring and the fixed outer ring are fastened to the kettle bottom, the flexible inner ring and the fixed outer ring are hidden on the lower side of the kettle body.

6. The heat-conducting fixing structure of an electric kettle according to claim 5, characterized in that: The bottom of the kettle body is also connected to a kettle bottom protection shell, the top of the kettle bottom protection shell is limited and abuts against the bottom surface of the kettle body, an assembly cavity is formed between the kettle bottom protection shell and the bottom surface of the kettle body, and the heat conducting plate, flexible inner ring, fixed outer ring and electric heating device are arranged in the assembly cavity.

7. The heat-conducting fixing structure of an electric kettle according to claim 6, characterized in that: An electric coupler is also provided in the assembly cavity. The electric coupler is arranged on the lower side of the electric heating device and is fastened thereto. The pot bottom protective shell is arranged on the lower side of the electric coupler and is fastened thereto. A coupling avoidance hole is provided in the pot bottom protective shell corresponding to the electric coupler.

8. The heat-conducting fixing structure of an electric kettle according to claim 1, characterized in that: A disc cavity is recessed on the upper side of the heat-conducting disc, and a sealed heat-conducting cavity is formed between the disc cavity and the outer bottom surface of the kettle body. The heat-conducting cavity is filled with a heat-conducting medium in contact with the bottom surface of the kettle body.

9. The heat-conducting fixing structure of an electric kettle according to claim 8, characterized in that: The heat conducting medium includes heat conducting silicone grease or heat conducting oil.

10. The heat-conducting fixing structure of an electric kettle according to claim 1, characterized in that: The electric heating device is one of a heating plate, a heating film, and an electromagnetic coil, and the electric heating device is connected to the bottom surface of the heat-conducting plate.

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