Sealed water boiling electric kettle
By using the magnetic suction connection between the temperature-sensitive magnetic steel and the pressure relief cap in the electric kettle, combined with the steam pressure relief channel and the insulation cotton, the problem of heat loss and poor insulation effect during the boiling process of the electric kettle is solved, and efficient Boiling water and energy-saving effects.
Patent Information
- Application Number
- CN202420225973.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The existing electric kettles have severe heat loss during boiling water and have poor insulation effect, resulting in low boiling efficiency and waste of heat.
An electric kettle with sealed boiling water is designed, using temperature-sensitive magnetic steel and pressure relief cap connected by magnetic suction, combining steam pressure relief passage and thermal insulation cotton to achieve sealing and steam discharge of the pressure relief chamber, preventing heat loss, and The water will automatically cut off the heating after boiling.
It effectively reduces heat loss, improves boiling efficiency and insulation effect, and achieves the purpose of energy saving.
Smart Images
Figure CN222194711U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric kettles, in particular to a sealed electric kettle for boiling water. Background Art
[0002] In many areas, the water quality is poor, and people usually boil water before drinking it. Electric kettles are a common tool for boiling water. Existing electric kettles generally include a kettle body and a kettle lid. A water outlet (i.e., a spout) is provided on one side of the kettle body, and a handle is provided on the other side of the kettle body. The kettle lid is hinged with the handle and is used to cover the kettle mouth. In the electric kettle of the prior art, during use, the kettle cavity is always connected to the outside air through the water outlet or the pressure relief port provided on the kettle lid during the boiling process, causing the heat to be continuously lost during the boiling process, reducing the boiling efficiency. After the boiling water, the heat of the hot water is also lost with the flow of air, making the insulation effect of the electric kettle poor. Therefore, the applicant further improves and perfects the structure to provide a new solution to the above technical problems for consumers to choose and use. Summary of the invention
[0003] The utility model aims to provide a sealed electric kettle for boiling water which has a simple and reasonable structure, is easy to install and has a stable structure.
[0004] A sealed electric kettle for boiling water comprises a kettle body, a handle is arranged on the side of the kettle body, a heating assembly is arranged at the bottom of the inner cavity of the kettle body, an upper cover assembly is arranged on the upper part of the kettle body, a sealing cover of the upper cover assembly is arranged at the mouth of the kettle body, the upper cover assembly comprises an upper cover and a pressure relief cover, a pressure relief chamber connected to the inner cavity of the kettle body is arranged in the upper cover, the pressure relief cover is assembled in the pressure relief chamber and elastically connected to the upper cover through an elastic member, a magnetic steel is fixed on the pressure relief cover, and a temperature-sensitive magnetic steel is fixed on the upper cover, and the temperature-sensitive magnetic steel is magnetically attracted or demagnetized to the magnetic steel, so that the pressure relief cover elastically enters and exits the pressure relief chamber, thereby realizing the isolation or connection of the pressure relief chamber with the outside air.
[0005] The purpose of the utility model can also be solved by the following technical measures:
[0006] As a more specific solution, a pressure relief cover sealing ring is provided on the peripheral side of the pressure relief cover. After the temperature-sensitive magnetic steel is magnetically attracted to the magnetic steel to suck the pressure relief cover into the pressure relief cavity, the pressure relief cover sealing ring is held against the upper cover and seals the pressure relief cavity.
[0007] As a further solution, a plurality of radially extending steam pressure relief channels are provided in the pressure relief cover, and the outer ports of the steam pressure relief channels are provided on the side walls of the pressure relief cover, and the inner ports of the steam pressure relief channels converge at the central cavity and are connected with the pressure relief cavity, and after the pressure relief cover pops out of the pressure relief cavity, the pressure relief cavity is connected with the outside air through the steam pressure relief channels.
[0008] As a further solution, the kettle body includes an outer shell and an inner liner placed in the outer shell, the heating assembly is connected to the bottom of the inner liner, and a hollow layer is formed between the outer shell and the inner liner, and thermal insulation cotton is placed in the hollow layer.
[0009] As a further solution, the mouth of the kettle body is provided with a spout protruding outward, and the sealing cover on the spout is provided with a spout cover. The spout cover is connected to one side of the upper cover assembly through a spout cover shaft and can be freely flipped open and closed relative to the spout.
[0010] As a further solution, a plurality of evenly distributed lower positioning columns are provided at the bottom of the pressure relief chamber, and a plurality of upper positioning columns of the same number are provided at the bottom of the pressure relief cover corresponding to the lower positioning columns; the elastic member includes a plurality of pressure relief springs, and the two ends of the pressure relief springs are positioned and sleeved on the lower positioning columns and the upper positioning columns.
[0011] As a further solution, the heating assembly includes a heating plate connected to the outer bottom surface of the inner tank and a thermostat abutting against the heating plate, the thermostat is electrically connected to the heating plate, a switch for manually controlling the thermostat is provided on the side of the kettle body, and a steam pipe is provided in the kettle body, one end of the steam pipe is connected to the inner cavity of the kettle body, and the other end is connected to the thermostat.
[0012] As a further solution, the upper cover includes a main cover body and a metal filter cover, and the metal filter cover is connected to the bottom surface of the main cover body; a pressure relief chamber is defined in the main cover body, and an upper cover steam channel connected to the pressure relief chamber is provided, and an exhaust port is provided on the metal filter cover corresponding to the upper cover steam channel, the temperature-sensitive magnetic steel is fixed above the upper cover steam channel in a circular ring structure, and the magnetic steel is fixed to the bottom surface of the pressure relief cover in a circular ring structure.
[0013] As a further solution, an upper cover inner cavity separated from the pressure relief cavity is defined between the main cover body and the metal filter cover, a steam inlet is provided on the metal filter cover corresponding to the upper cover inner cavity, an opening is provided on the side of the main cover body corresponding to a port of the steam pipe, and the opening is sealedly connected to a port of the steam pipe through a silicone sleeve.
[0014] As a further solution, the upper cover assembly is composed of a split cover arranged at the mouth of the kettle body, or one side of the upper cover assembly is rotatably connected to one side of the kettle body through a hinge pair; an upper cover sealing ring is arranged on the outer peripheral side of the upper cover assembly, and the upper cover assembly is interference connected with the kettle body through the upper cover sealing ring, or the upper cover assembly is connected to the kettle body through threads or snaps.
[0015] The beneficial effects of the utility model are as follows:
[0016] The utility model discloses a sealed electric kettle for boiling water, which solves the problems of heat loss during the heating process of the kettle and heat insulation of water left for a period of time after boiling, has a good heat preservation effect, and can achieve the purpose of emission reduction and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 and Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the utility model.
[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper cover assembly in the utility model. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0020] like Figures 1 to 3 As shown, a sealed electric kettle for boiling water comprises a kettle body 1, a handle 2 is arranged on the side of the kettle body 1, a heating assembly 3 is arranged at the bottom of the inner cavity of the kettle body 1, an upper cover assembly 4 is arranged on the upper part of the kettle body 1, a sealing cover of the upper cover assembly 4 is arranged at the mouth of the kettle body 1, the upper cover assembly 4 comprises an upper cover 41 and a pressure relief cover 42, a pressure relief chamber 401 connected to the inner cavity of the kettle body 1 is arranged in the upper cover 41, the pressure relief cover 42 is assembled in the pressure relief chamber 401 and elastically connected to the upper cover 41 through an elastic member, a magnetic steel 43 is fixed on the pressure relief cover 42, and a temperature-sensitive magnetic steel 44 is fixed on the upper cover 41, the temperature-sensitive magnetic steel 44 magnetically attracts or demagnetizes the magnetic steel 43, so that the pressure relief cover 42 elastically enters and exits the pressure relief chamber 401, so that the pressure relief chamber 401 is isolated or connected with the outside air.
[0021] This electric kettle solves the problem of heat loss during the heating process of the kettle and the problem of heat insulation when water is left for a period of time after boiling. It has a good heat preservation effect and can achieve the purpose of emission reduction and energy saving.
[0022] A plurality of radially extending steam pressure relief channels 421 are provided in the pressure relief cover 42, and the outer ports of the steam pressure relief channels 421 are provided on the side walls of the pressure relief cover 42, and the inner ports of the steam pressure relief channels 421 converge at the central cavity 422 and communicate with the pressure relief cavity 401. After the pressure relief cover 42 pops out of the pressure relief cavity 401, the pressure relief cavity 401 communicates with the outside air through the steam pressure relief channels 421.
[0023] A pressure relief cover sealing ring 45 is provided on the peripheral side of the pressure relief cover 42. After the temperature-sensitive magnetic steel 44 magnetically attracts the magnetic steel 43 to cause the pressure relief cover 42 to be sucked into the pressure relief chamber 401, the pressure relief cover sealing ring 45 is held against the upper cover 41 and seals the pressure relief chamber 401. In the present embodiment, two pressure relief cover sealing rings 45 are provided. The two pressure relief cover sealing rings 45 are provided on the peripheral side wall of the pressure relief cover 42, one above and one below, and the outer port of the steam pressure relief channel 421 is provided between the two pressure relief cover sealing rings 45, so that the pressure relief cover 42 is sucked into the pressure relief chamber 401, and the steam pressure relief channel 421 will not cause the steam to leak out prematurely due to the gap between the two.
[0024] The kettle body 1 includes an outer shell 11 and an inner liner 12 placed in the outer shell 11, the heating assembly 3 is connected to the bottom of the inner liner 12, and a hollow layer 101 is formed between the outer shell 11 and the inner liner 12, and a thermal insulation cotton 13 is placed in the hollow layer 101; the thermal insulation cotton 13 can keep the water in the kettle body 1 warm.
[0025] The mouth of the kettle body 1 is provided with a spout 14 protruding outward, and a spout cover 5 is provided on the spout 14 as a sealing cover. The spout cover 5 is connected to one side of the upper cover assembly 4 through a spout cover rotating shaft 51 and can be freely flipped open and closed relative to the spout 14; when the spout cover 5 is closed, the inner pot is isolated from the air, which can improve the heating efficiency when boiling water.
[0026] The bottom of the pressure relief chamber 401 is provided with a plurality of evenly distributed lower positioning columns 46, and the bottom of the pressure relief cover 42 is provided with a plurality of upper positioning columns 423 of the same number corresponding to the lower positioning columns 46; the elastic member includes a plurality of pressure relief springs 6, and the two ends of the pressure relief springs 6 are positioned and sleeved on the lower positioning columns 46 and the upper positioning columns 423; the pressure relief springs 6 are used to position the pressure relief springs 6, and the pressure relief cover 42 is elastically raised and lowered through the pressure relief springs 6, and the plurality of pressure relief springs 6 are evenly distributed circumferentially, so that the pressure relief cover 42 can be subjected to more uniform force.
[0027] The heating assembly 3 includes a heating plate 31 connected to the outer bottom surface of the inner tank 12 and a thermostat 32 abutting against the heating plate 31, the thermostat 32 is electrically connected to the heating plate 31, a switch 33 for manually controlling the thermostat 32 is provided on the side of the kettle body 1, and a steam pipe 7 is provided in the hollow layer 101, one end of the steam pipe 7 is connected to the inner cavity of the kettle body 1, and the other end is connected to the thermostat 32.
[0028] The upper cover 41 includes a main cover body 8 and a metal filter cover 9, and the metal filter cover 9 is connected to the bottom surface of the main cover body 8; a pressure relief chamber 401 is defined in the main cover body 8, and an upper cover steam channel 402 connected to the pressure relief chamber 401 is opened, and the metal filter cover 9 is provided with an exhaust port 901 corresponding to the upper cover steam channel 402, the temperature-sensitive magnetic steel 44 is fixed above the upper cover steam channel 402 in a circular ring structure, and the magnetic steel 43 is fixed on the bottom surface of the pressure relief cover 42 in a circular ring structure.
[0029] An upper cover inner cavity 403 separated from the pressure relief cavity 401 is defined between the main cover body 8 and the metal filter cover 9. A steam inlet 902 is provided on the metal filter cover 9 corresponding to the upper cover inner cavity 403. An opening 801 is provided on the side of the main cover body 8 corresponding to a port of the steam pipe 7. The opening 801 is sealed and connected to a port of the steam pipe 7 through a silicone sleeve 10.
[0030] The split cover of the upper cover assembly 4 is arranged at the mouth of the kettle body 1, or one side of the upper cover assembly 4 is rotatably connected to one side of the kettle body 1 through a hinge pair; an upper cover sealing ring 16 is arranged on the outer peripheral side of the upper cover assembly 4, and the upper cover assembly 4 is interference connected with the kettle body 1 through the upper cover sealing ring 16, or the upper cover assembly 4 is connected with the kettle body 1 through threads or buckles.
[0031] The kettle base 15 is also included. A coupling head 151 electrically connected to a power supply line is provided on the kettle base 15 . The kettle body is detachably mounted on the kettle base 15 , and the thermostat is electrically coupled to the coupling head 151 .
[0032] In combination with the above structure, the working principle of the electric kettle is as follows:
[0033] After water is added to the inner tank 12 of the electric kettle, the upper cover assembly 4 is placed on the kettle body 1 and fixed, and the spout cover 5 is covered to isolate the inner tank 12 from the air. Then, the kettle body 1 is placed on the kettle base 15, and the switch 33 is pressed, and the machine enters a normal working state, as shown in the figure.
[0034] At room temperature, the spout cover 5 is in a closed state to prevent water from directly contacting the outside world, which plays a role in heat preservation. The temperature-sensing magnetic steel 44 in the upper cover assembly 4 is fixed on the upper cover 41, and the magnetic steel 43 is fixed on the pressure relief cover 42. The temperature-sensing magnetic steel 44 and the magnetic steel 43 are in a mutually attracted state due to the effect of magnetic attraction. The steam pressure relief channel 421 on the pressure relief cover 42 is sealed by the pressure relief cover sealing ring 45. The water in the inner tank 12 is isolated from the outside world, and the kettle is in a sealed water boiling state, which plays a role in heat preservation and heat insulation. At the same time, the thermal insulation cotton 13 also plays a role in heat preservation and heat insulation.
[0035] When the water boils, since the kettle is in a sealed boiling state, high-temperature steam is generated in the inner cavity of the kettle body 1. The steam enters the upper cover steam channel 402 through the exhaust port 901 of the metal filter cover 9 and reaches the temperature-sensitive magnetic steel 44. The temperature-sensitive magnetic steel 44 loses its magnetism due to heat, and the pressure relief cover 42 is pushed up by the pressure relief spring 6. When the steam pressure relief channel 421 is higher than the plane of the upper cover 41, the steam in the kettle is connected to the outside air, which plays a role in exhausting and preventing danger due to high temperature and high pressure. At this time, the high-temperature steam inside the kettle also enters the steam pipe 7 through the steam inlet 902, the opening 801 and the silicone sleeve 10, and the steam reaches the thermostat 32 at the bottom, and then the power is cut off to stop heating.
[0036] When the kettle stops heating, the high-temperature steam leaks out, causing the water temperature in the kettle to drop. When the temperature drops to the set temperature, the temperature-sensing magnetic steel 44 recovers its magnetism and attracts the magnetic steel 43, driving the pressure relief cover 42 to move downward, and then the steam pressure relief channel 421 is closed, and the water in the kettle is isolated from the outside world, achieving a thermal insulation effect. At the same time, the thermal insulation cotton 13 also has a thermal insulation effect.
[0037] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A sealed electric kettle for boiling water, comprising a kettle body (1), a handle (2) being provided on the side of the kettle body (1), a heating assembly (3) being provided at the bottom of the inner cavity of the kettle body (1), an upper cover assembly (4) being provided on the upper part of the kettle body (1), a sealing cover of the upper cover assembly (4) being provided at the mouth of the kettle body (1), Features: The upper cover assembly (4) comprises an upper cover (41) and a pressure relief cover (42). The upper cover (41) is provided with a pressure relief chamber (401) in communication with the inner chamber of the kettle body (1). The pressure relief cover (42) is assembled in the pressure relief chamber (401) and is elastically connected to the upper cover (41) via an elastic member. A magnetic steel (43) is fixed to the pressure relief cover (42). A temperature-sensitive magnetic steel (44) is fixed to the upper cover (41). The temperature-sensitive magnetic steel (44) magnetically attracts or demagnetizes the magnetic steel (43), so that the pressure relief cover (42) elastically enters and exits the pressure relief chamber (401), thereby isolating or connecting the pressure relief chamber (401) with the outside air.
2. A sealed electric kettle for boiling water according to claim 1, Features: A pressure relief cover sealing ring (45) is provided on the circumferential side of the pressure relief cover (42). After the temperature-sensitive magnetic steel (44) magnetically attracts the magnetic steel (43) to cause the pressure relief cover (42) to be sucked into the pressure relief chamber (401), the pressure relief cover sealing ring (45) abuts against the upper cover (41) and seals the pressure relief chamber (401).
3. A sealed electric kettle for boiling water according to claim 1 or 2, Features: A plurality of radially extending steam pressure relief channels (421) are provided in the pressure relief cover (42); the outer ports of the steam pressure relief channels (421) are provided on the side walls of the pressure relief cover (42); the inner ports of the steam pressure relief channels (421) converge at the central cavity (422) and communicate with the pressure relief cavity (401); after the pressure relief cover (42) pops out of the pressure relief cavity (401), the pressure relief cavity (401) communicates with the outside air through the steam pressure relief channels (421).
4. A sealed electric kettle for boiling water according to claim 1, Features The kettle body (1) comprises an outer shell (11) and an inner liner (12) placed in the outer shell (11); the heating assembly (3) is connected to the bottom of the inner liner (12); a hollow layer (101) is formed between the outer shell (11) and the inner liner (12); and a heat-insulating cotton (13) is placed in the hollow layer (101).
5. A sealed electric kettle for boiling water according to claim 1, Features The mouth of the kettle body (1) is provided with a spout (14) protruding outward, and a spout cover (5) is provided on the sealing cover of the spout (14). The spout cover (5) is connected to one side of the upper cover assembly (4) via a spout cover rotating shaft (51) and can be freely turned over and opened and closed relative to the spout (14).
6. A sealed electric kettle for boiling water according to claim 1, Features The bottom of the pressure relief chamber (401) is provided with a plurality of evenly distributed lower positioning columns (46), and the bottom of the pressure relief cover (42) is provided with a plurality of upper positioning columns (423) of the same number corresponding to the lower positioning columns (46); the elastic member includes a plurality of pressure relief springs (6), and the two ends of the pressure relief springs (6) are positioned and sleeved on the lower positioning columns (46) and the upper positioning columns (423).
7. A sealed electric kettle for boiling water according to claim 1, Features The heating assembly (3) comprises a heating plate (31) connected to the outer bottom surface of the inner tank (12) and a thermostat (32) abutting against the heating plate (31), the thermostat (32) being electrically connected to the heating plate (31), a switch (33) for manually controlling the thermostat (32) being provided on the side of the kettle body (1), and a steam pipe (7) being provided inside the kettle body (1), one end of the steam pipe (7) being connected to the inner cavity of the kettle body (1), and the other end of the steam pipe (7) being connected to the thermostat (32).
8. A sealed electric kettle for boiling water according to claim 7, Features The upper cover (41) comprises a main cover body (8) and a metal filter cover (9), wherein the metal filter cover (9) is connected to the bottom surface of the main cover body (8); a pressure relief chamber (401) is defined in the main cover body (8), and an upper cover steam channel (402) connected to the pressure relief chamber (401) is provided; the metal filter cover (9) is provided with an exhaust port (901) corresponding to the upper cover steam channel (402); the temperature-sensitive magnetic steel (44) is fixed above the upper cover steam channel (402) in a circular ring structure; and the magnetic steel (43) is fixed to the bottom surface of the pressure relief cover (42) in a circular ring structure.
9. A sealed electric kettle for boiling water according to claim 8, Features An upper cover inner cavity (403) separated from the pressure relief cavity (401) is defined between the main cover body (8) and the metal filter cover (9); a steam inlet (902) is provided on the metal filter cover (9) corresponding to the upper cover inner cavity (403); an opening (801) is provided on the side of the main cover body (8) corresponding to a port of the steam pipe (7); the opening (801) is sealedly connected to a port of the steam pipe (7) via a silicone sleeve (10).
10. A sealed electric kettle for boiling water according to claim 1, Features The upper cover assembly (4) is a split cover arranged at the mouth of the kettle body (1), or one side of the upper cover assembly (4) is rotatably connected to one side of the kettle body (1) via a hinged pair; an upper cover sealing ring (16) is arranged on the outer peripheral side of the upper cover assembly (4), and the upper cover assembly (4) is interference-connected with the kettle body (1) via the upper cover sealing ring (16), or the upper cover assembly (4) is connected to the kettle body (1) via a thread or a buckle.