Electric kettle
By improving the steam pipe structure, the safety hazards of hot water gushing out of the steam pipe when the electric kettle is tilted or poured are solved, and safety protection is achieved in various postures to prevent scalds and electrical short circuits.
Patent Information
- Application Number
- PCT/CN2024/085410
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-28
- Filing Date
- 2024-04-02
- Publication Date
- 2025-09-04
AI Technical Summary
When existing electric kettles are tilted or poured, hot water is easily poured out of the steam pipe, causing scalding to the user and possibly causing electrical short circuits.
A steam pipe structure is designed, divided into a first arc-shaped pipe section and a second pipe section, and combined to form a three-way port, the steam inlet is the same side as the spout, and the second pipe section extends to the body of the pot or the bottom of the handle, using the lever principle to ensure that the steam inlet is always higher than the water surface, and prevents water from entering the steam pipe.
Effectively prevent boiling hot water from pouring out of the steam pipe, avoid burning the user, and prevent electrical short circuits, improving safety.
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Figure CN2024085410_04092025_PF_FP_ABST
Abstract
Description
electric kettle Technical Field
[0001] The utility model relates to the technical field of electric heating equipment, and more particularly to an electric kettle. Background Art
[0002] Currently, electric kettles on the market include a kettle body, a kettle lid, a steam pipe and a thermostat. The steam pipe is arranged on the side wall of the kettle body, the top end of the steam pipe is connected to the inner cavity of the kettle body, and the bottom end of the steam pipe is connected to the thermostat. During the boiling process, a large amount of steam will be generated after the water boils. The steam will enter the steam pipe and flow down along the steam pipe to the thermostat. When the temperature-sensitive metal shrapnel on the thermostat senses that the steam temperature has reached a preset value, the metal shrapnel will be deformed by the heat, thereby realizing the automatic tripping of the kettle. When the kettle tilts or falls over or accidentally trips, a large amount of boiling hot water will instantly gush out from the steam pipe, which can easily scald the user and cause injury, and soak the base, causing an electrical short circuit and leading to electric shock.
[0003] Therefore, in order to solve the problems existing in the prior art, the applicant proposes the following technical solutions.
[0004] Utility Model Content
[0005] In view of this, the utility model provides an electric kettle.
[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: an electric kettle, comprising a kettle body and a kettle lid, wherein the kettle body has a spout and a handle, and further comprises: a steam pipe;
[0007] The steam pipe comprises: a first curved pipe section and a second pipe section that are connected to each other, the first curved pipe section being installed in the kettle body and close to the opening at the top of the kettle body, the upper end of the second pipe section being connected to the first curved pipe section, and the lower end of the second pipe section extending to the bottom of the kettle body; the kettle body is provided with a temperature control switch that senses the temperature of steam flowing out of the second pipe section;
[0008] The first arc-shaped pipe section is provided with a steam inlet, and the steam inlet and the spout are located on the same side of the kettle body.
[0009] This technology combines the steam pipe as the first arc-shaped pipe section and the second pipe section. When the electric kettle is tilted or tipped over, boiling hot water will not gush out of the steam pipe in large quantities and instantly, thus avoiding the large amount of boiling hot water gushing out of the steam pipe to injure the user, and preventing a large amount of water from soaking the bottom of the kettle body, causing an electrical short circuit and electric shock, thereby improving safety.
[0010] As a preferred solution of the present invention, the connection between the first arc-shaped pipe segment and the second pipe segment is connected to form a three-way port;
[0011] The steam inlet includes: a first steam inlet and a second steam inlet, steam enters the first arc-shaped pipe section from the first steam inlet and the second steam inlet and enters the second pipe section through the tee port;
[0012] The end of the second pipe section forms a steam outlet;
[0013] In this technology, the steam pipe is composed of a first arc-shaped pipe section and a second pipe section. The length of the entire steam pipe is relatively long. When pouring water, the kettle body tilts toward the spout. Even if the water submerges the steam inlet, the three-way opening is higher than the steam inlet, effectively preventing water from entering the second pipe section and entering the bottom of the kettle body; when the kettle body tilts toward the handle, the steam inlet is higher than the water surface, preventing water from flowing into the steam pipe, effectively preventing electrical short circuits.
[0014] As a preferred solution of the present invention, the second pipe section is installed in the kettle body and extends to the bottom of the kettle body; or the second pipe section is installed in the handle and extends to the bottom of the kettle body;
[0015] In this technology, the second pipe section can be set in the kettle body or in the handle, and finally the steam is sent to the bottom of the kettle body to be sensed by the temperature control switch, and finally the electric kettle is controlled to automatically trip.
[0016] As a preferred solution of the present invention, a heating disk assembly is provided at the bottom of the kettle body, and the end of the second pipe section extends to the heating disk assembly; in this technology, the heating disk assembly is mainly used to heat the water in the kettle body, and the heating disk assembly is electrically connected to the temperature control switch. When the steam temperature reaches the threshold, the temperature control switch automatically trips to control the heating disk assembly to stop heating.
[0017] As a preferred solution of the present invention, a steam box is provided at the bottom of the kettle body, and the end of the second pipe section extends to the steam box. In this technology, the steam flowing into the second pipe section eventually flows into the steam box, and the temperature control switch can sense the temperature of the steam in the steam box, and the temperature control switch senses the steam temperature and automatically trips.
[0018] As a preferred solution of the present invention, the temperature control switch senses the temperature of the steam flowing into the steam box from the steam outlet of the second pipe section.
[0019] As a preferred solution of the present invention, the weight of the side of the kettle body provided with the handle is greater than the weight of the side of the kettle body provided with the spout.
[0020] As a preferred solution of the present invention, the weight of the handle is greater than the weight of the spout.
[0021] As a preferred solution of the present invention, the handle is provided with a counterweight.
[0022] In this technology, the weight of the handle side of the kettle body is designed to be greater than the weight of the spout side. When the electric kettle falls vertically, due to the principle of leverage, the weight on the handle side is greater, and the handle side is always kept downward and the spout side is upward. The steam inlet of the steam pipe in the kettle body is upward. Under the rated water volume of the electric kettle, its steam inlet is always above the water surface, thereby preventing water from entering the steam pipe and preventing water from gushing out of the steam pipe. It also effectively prevents water from entering the steam pipe and then entering the bottom of the kettle body and causing a short circuit.
[0023] The remaining beneficial technical effects of the present invention are embodied in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0025] FIG1 is a schematic diagram of the steam pipe and heating plate assembly of the electric kettle of the present invention;
[0026] FIG2 is a schematic diagram of the steam pipe and heating plate assembly of the electric kettle of the present invention from another angle;
[0027] FIG3 is a cross-sectional view of the steam pipe and heating plate assembly of the electric kettle of the present invention;
[0028] FIG4 is an enlarged view of point A in FIG3 ;
[0029] FIG5 is a schematic diagram of the electric kettle of the present invention;
[0030] FIG6 is a schematic diagram showing the structure of the steam pipe installed on the kettle body in the present invention;
[0031] FIG7 is a schematic cross-sectional view of the electric kettle of the present invention;
[0032] FIG8 is a schematic cross-sectional view of line AA in FIG7 ;
[0033] FIG9 is a schematic diagram of the electric kettle of the present invention in a tilted state.
[0034] Description of reference numerals:
[0035] Kettle body 100; water storage chamber 101; opening 102; spout 110; handle 120; lid 200; steam pipe 300; first arc-shaped pipe section 310; steam inlet 311; first steam inlet 3111; second steam inlet 3112; second pipe section 320; steam outlet 321; three-way opening 330; temperature control switch 400; heating plate assembly 500; steam box 600. DETAILED DESCRIPTION
[0036] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0037] 1-8 , the electric kettle includes a kettle body 100 and a kettle lid 200 . The kettle body 100 has a spout 110 , a handle 120 and a steam pipe 300 .
[0038] A water storage chamber 101 is formed inside the kettle body 100, and the top of the kettle body 100 is an opening 102. Water is injected into the water storage chamber 101 from the opening 102. A heating plate assembly 500 and a temperature control switch 400 are provided at the bottom of the kettle body 100. The heating plate assembly 500 and the temperature control switch 400 are electrically connected.
[0039] The steam pipe 300 includes a first curved pipe section 310 and a second pipe section 320 that are connected to each other. The first curved pipe section 310 is installed in the kettle body 100 and is close to the opening 102 at the top of the kettle body 100. The upper end of the second pipe section 320 is connected to the first curved pipe section 310, and the lower end of the second pipe section 320 extends to the bottom of the kettle body 100.
[0040] The kettle body is provided with a temperature control switch 400, which senses the temperature of the steam flowing out of the second pipe section 320; when the temperature is too high or reaches a threshold, the temperature control switch 400 trips, causing the heating plate assembly 500 to stop heating;
[0041] The first arc-shaped pipe section 310 is provided with a steam inlet 311 , and the steam inlet 311 and the spout 110 are located on the same side of the kettle body 100 .
[0042] As shown in Figures 5-6, the spout 110 and the handle 120 are symmetrically arranged. The user can lift the electric kettle by holding the handle 120. When pouring water, the handle 120 is lifted upward, and the spout 110 tilts downward, making it easier to pour out the water in the water storage chamber 101.
[0043] A temperature control switch 400 is provided at the bottom of the kettle body 100. When heating, the temperature control switch 400 is pressed down and the heating plate assembly 500 is energized; the water is heated and boiled to generate steam, and the steam enters the first arc-shaped pipe section 310 from the steam inlet 311 and then enters the second pipe section 320. When the temperature-sensitive metal spring on the temperature control switch 400 senses that the steam temperature is too high or reaches a threshold value, the metal spring is deformed by the heat and automatically trips, and the heating plate assembly 500 is powered off and stops heating.
[0044] Continuing with FIG6 , a water storage chamber 101 is provided in the kettle body 100. Generally speaking, a maximum water level line is provided in the kettle body 100 to remind the user that the amount of water injected should not exceed the maximum water level line; the first arc-shaped pipe section 310 is located above the maximum water level line. When the water level in the kettle body 100 reaches the maximum water level line, when the user lifts the electric kettle through the handle 120, the user generally lifts the electric kettle horizontally or tilts it. When the electric kettle is lifted horizontally, the steam inlet 311 is above the water surface. When the electric kettle is lifted at an angle, the handle 120 is downward and the spout 110 is upward, preventing water from leaking out of the spout 110, and the steam inlet 311 is still above the water surface. Therefore, when the electric kettle is lifted horizontally or at an angle, the steam inlet 311 is above the water surface, preventing water from entering the steam pipe 300. In addition, when pouring water, the user lifts the electric kettle by the handle 120, with the handle 120 facing upward and the spout 110 facing downward. Even if the water level in the kettle body 100 is submerged in the steam inlet 311, since the steam pipe 300 is also inclined, the steam inlet 311 is located at a low position of the first arc-shaped pipe section 310 when tilted, and the hot water in the kettle body 100 cannot enter the steam pipe 300, effectively preventing the scalding hot water from gushing out of the steam pipe 300 in large quantities and causing harm to the user.
[0045] In addition, as shown in Figure 9, if the kettle body 100 is tilted as shown in the direction of Figure 9, the water in the kettle body 100 is shown as the shaded part in Figure 9, then the water in the kettle body 100 will not cover the steam inlet 311, preventing the boiling hot water from gushing out of the steam pipe 300 in large quantities and causing harm to the user.
[0046] Therefore, when the electric kettle is tilted or overturned, the structure of the steam pipe 300 of the utility model makes it difficult for hot water to enter the steam pipe 300, effectively preventing boiling hot water from gushing out of the steam pipe 300 through the bottom of the kettle body 100, and also preventing electrical short circuits, thereby improving safety.
[0047] In one embodiment, as shown in FIG1-4 , the connection between the first arc-shaped pipe segment 310 and the second pipe segment 320 is connected to form a three-way port 330 ;
[0048] The steam inlet 311 includes a first steam inlet 3111 and a second steam inlet 3112 . Steam enters the first arc-shaped pipe section 310 from the first steam inlet 3111 and the second steam inlet 3112 and enters the second pipe section 320 through the three-way port 330 .
[0049] A steam outlet 321 is formed at the end of the second pipe section 320 .
[0050] The first arc-shaped pipe section 310 and the second pipe section 320 are both made of metal. The first arc-shaped pipe section 310 can be formed by bending the metal material or by welding two arc-shaped metal sections.
[0051] Generally speaking, the kettle body 100 has a circular cross-section, and therefore the first curved tube section 310 is also circular. The first curved tube section 310 is provided with a notch, and the first steam inlet 3111 and the second steam inlet 3112 are formed at the position corresponding to the notch. The second tube section 320 and the first curved tube section 310 are connected to form a three-way opening 330. The three-way opening 330 and the notch are located on a diameter of the first curved tube section 310.
[0052] As shown in Figure 3, the second pipe section 320 extends from top to bottom. The second pipe section 320 can be a straight pipe section. Similarly, in order to match the curvature of the kettle body 100, the second pipe section 320 can also be designed to be slightly curved to better adapt to the curvature of the kettle body 100 and fit the inner wall of the kettle body 100.
[0053] During use, the electric kettle heats water to a boil, generating steam that enters the first arc-shaped pipe section 310 through the first steam inlet 3111 and the second steam inlet 3112, and then enters the second pipe section 320 through the three-way opening 330. The steam flows in the direction indicated by the arrows in FIG1 . The temperature control switch 400 senses the steam temperature to electrically disconnect the heating plate assembly 500.
[0054] In one embodiment, the second tube section 320 is installed in the kettle body 100 and extends to the bottom of the kettle body 100; or the second tube section 320 is installed in the handle 120 and extends to the bottom of the kettle body 100;
[0055] Preferably, in this embodiment, the second pipe section 320 is installed in the water storage cavity 101 of the kettle body 100 and is close to the inner wall of the water storage cavity 101, which has a simple structure and is easy to install.
[0056] In one embodiment, a heating plate assembly 500 is provided at the bottom of the kettle body 100, and the end of the second pipe section 320 extends to the heating plate assembly 500; as shown in Figure 6, the heating plate assembly 500 has a metal plate 511 and a heating element 512, the metal plate 511 serves as the inner bottom surface of the water storage chamber 101, and the heating element 512 is installed on the outer bottom surface of the metal plate 511, transferring heat to the metal plate 511 to heat the water in the water storage chamber 101; as shown in Figure 7, the second pipe section 320 extends to the metal plate 511.
[0057] Furthermore, a steam box 600 is provided at the bottom of the kettle body 100, the end of the second pipe section 320 extends to the steam box 600, the metal plate 511 is provided with a perforation, and the second pipe section 320 is connected to the steam box 600 through the perforation. When in use, the steam in the second pipe section 320 flows out from the steam outlet 321 and flows into the steam box 600, and the temperature control switch 400 senses the steam temperature in the steam box 600.
[0058] In one embodiment, the weight of the kettle body 100 on the side where the handle 120 is provided is greater than the weight of the kettle body 100 on the side where the spout 110 is provided.
[0059] Optionally, the weight of the handle 120 is greater than the weight of the spout 110 .
[0060] Optionally, the handle 120 is provided with a counterweight;
[0061] Optionally, some electronic components at the bottom of the kettle body 100 may be concentrated on the kettle body 100 on the same side as the handle 120 , so that the weight of the kettle body 100 is biased towards the handle 120 side.
[0062] When the material density of the handle 120 and the spout 110 is ignored, generally speaking, the volume of the handle 120 is larger than that of the spout 110 , so the weight of the handle 120 side of the kettle body 100 is greater than the weight of the spout 110 side;
[0063] Alternatively, a counterweight may be provided inside the handle 120 to increase the weight of the handle 120 so that the weight of the handle 120 side of the kettle body 100 is greater than the weight of the spout 110 side;
[0064] Alternatively, the kettle body 100 of the electric kettle is further provided with many electronic components, such as a circuit board, a control board, etc. These components can be concentrated on the side of the kettle body 100 where the handle 120 is provided, so that the weight of the handle 120 side is greater than the weight of the spout 110 side;
[0065] The weight of one side of the handle 120 is greater than the weight of one side of the spout 110. As shown in Figure 7, if the electric kettle falls freely at the angle shown in Figure 7, due to the action of gravity, the electric kettle will rotate clockwise by a certain angle at the angle shown in Figure 7, so that the handle 120 is facing downward and the spout 110 is relatively facing upward, and falls at an angle. During this process, the steam inlet 311 is higher than the water surface; as shown in Figure 9, if the electric kettle falls freely at the angle shown in Figure 9, under the action of gravity during the falling process, the handle 120 is facing downward and the spout 110 is facing upward, and the water level in the water storage chamber 101 is lower than the steam inlet 311, preventing hot water from entering the steam pipe 300.
[0066] Therefore, the present invention designs the steam pipe 300 as a combination of a first arc-shaped pipe section 310 and a second pipe section 320, and the steam inlet 311 corresponds to the spout 110, so that water will not enter the steam pipe 300 when the electric kettle is tilted. In addition, when the electric kettle is accidentally tipped over or dropped, the handle 120 is always protected to face downward and the spout 110 to face upward, so that the steam inlet 311 is always above the water surface, preventing a large amount of water from flowing into the steam pipe 300, effectively preventing scalding of users and preventing electrical short circuits.
[0067] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An electric kettle comprising a kettle body (100) and a kettle lid (200), wherein the kettle body (100) has a spout (110) and a handle (120), and is characterized in that: Also includes: Steam pipe (300); The steam pipe (300) comprises: a first arc-shaped pipe section (310) and a second pipe section (320) which are connected to each other, wherein the first arc-shaped pipe section (310) is installed in the kettle body (100) and is close to the opening (101) at the top of the kettle body (100); the upper end of the second pipe section (320) is connected to the first arc-shaped pipe section (310), and the lower end of the second pipe section (320) extends to the bottom of the kettle body (100); the kettle body (100) is provided with a temperature control switch (400), and the temperature control switch (400) senses the temperature of steam flowing out of the second pipe section (320); The first arc-shaped pipe section (310) is provided with a steam inlet (311), and the steam inlet (311) and the spout (110) are located on the same side of the kettle body (100).
2. The electric kettle according to claim 1, characterized in that: The connection between the first arc-shaped pipe section (310) and the second pipe section (320) is connected to form a three-way port (330); The steam inlet (311) comprises: a first steam inlet (3111) and a second steam inlet (3112); steam enters the first arc-shaped pipe section (310) from the first steam inlet (3111) and the second steam inlet (3112) and enters the second pipe section (320) through the three-way port (330); A steam outlet (321) is formed at the end of the second pipe section (320).
3. The electric kettle according to claim 1, wherein: The second pipe section (320) is installed in the kettle body (100) and extends to the bottom of the kettle body (100); or The second pipe section (320) is installed in the handle (120) and extends to the bottom of the kettle body (100).
4. The electric kettle according to claim 3, characterized in that: A heating plate assembly (500) is provided at the bottom of the kettle body (100), and the end of the second pipe section (320) extends to the heating plate assembly (500).
5. The electric kettle according to claim 4, characterized in that: A steam box (600) is provided at the bottom of the kettle body (100), and the end of the second pipe section (320) extends to the steam box (600).
6. The electric kettle according to claim 5, characterized in that: The temperature control switch (400) senses the temperature of steam flowing into the steam box (600) from the steam outlet (321) of the second pipe section (320).
7. The electric kettle according to any one of claims 1 to 6, characterized in that: The weight of the side of the kettle body (100) provided with the handle (120) is greater than the weight of the side of the kettle body (100) provided with the spout (110).
8. The electric kettle according to claim 7, characterized in that: The weight of the handle (120) is greater than the weight of the spout (110).
9. The electric kettle according to claim 7, characterized in that: The handle (120) is provided with a counterweight.
Citation Information
Patent Citations
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CN204049258U
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