Sealed water boiling structure of electric kettle
By using a combined structure of steam pressure relief channel and temperature-sensitive shrapnel in the electric kettle, combined with the insulation effect of the insulation cotton, the problem of heat loss and poor insulation effect during the boiling process of the electric kettle is solved, and more efficient cooking is achieved Water and insulation effect.
Patent Information
- Application Number
- CN202420225987.6
- 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.
A sealed water boiling structure of an electric kettle is designed, using a combination of steam pressure relief channel and temperature-sensitive shrapnel. The opening and closing of the sealing plug is controlled through temperature changes to achieve effective steam discharge and resealing, and combined with the thermal insulation effect of insulation cotton , reduce heat loss.
It effectively reduces heat loss, improves boiling efficiency and insulation effect, and achieves the purpose of energy saving.
Smart Images
Figure CN222194712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric kettles, in particular to a sealed water-boiling structure of an electric kettle. Background Art
[0002] In China and many countries around the world, 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, 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 water boiling structure of an electric kettle which has a simple and reasonable structure, is easy to install and has a stable structure.
[0004] A sealed water-boiling structure for an electric kettle 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, a steam pressure relief channel which can connect the inner cavity of the kettle body and the outside air is arranged in the upper cover assembly, a sealing plug is slidably connected in the steam pressure relief channel, and a temperature-sensitive spring piece which is in conflict with or close to the sealing plug is arranged below the sealing plug, and the temperature-sensitive spring piece drives the sealing plug to rise or fall after deformation according to the temperature, so as to realize that the sealing plug conducts or blocks the steam pressure relief channel.
[0005] The purpose of the utility model can also be solved by the following technical measures:
[0006] As a more specific solution, the upper port of the steam pressure relief channel is equipped with a steam port cover, and a plurality of steam exhaust ports are opened on the steam port cover; a return spring is also arranged in the steam pressure relief channel, and the two ends of the return spring are abutted between the steam port cover and the sealing plug.
[0007] As a further solution, a sealing plug seat extends in the steam pressure relief channel, and a pressure relief through hole constituting the steam pressure relief channel is provided on the sealing plug seat; the sealing plug includes a plug column that linearly slides with the pressure relief through hole and a plug cap arranged on the upper part of the plug column, and the plug cap is supported on the sealing plug seat by a reset spring and isolates the pressure relief through hole.
[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, 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.
[0011] As a further solution, the upper cover assembly includes an upper cover, an upper cover liner and a metal filter cover, wherein the metal filter cover is assembled and connected to the bottom of the upper cover, and the upper cover liner is clamped therebetween; the upper cover and the upper cover liner are provided with an upper sleeve and a lower sleeve respectively extending in opposite directions along the axis, a steam sealing ring is pressed between the upper sleeve and the lower sleeve and together define a steam pressure relief channel.
[0012] As a further solution, the sealing plug seat is fixed in the upper sleeve, a supporting ring is fixed in the lower sleeve, the temperature-sensitive spring is a circular bowl-shaped structure placed on the supporting ring, and when the temperature of the temperature-sensitive spring reaches a set value, it arches upward from the middle to lift the sealing plug, and an exhaust port is opened at the lower end of the metal filter cover corresponding to the steam pressure relief channel.
[0013] As a further solution, the upper cover assembly is provided with an upper cover inner cavity separated from the steam pressure relief channel, a steam inlet is provided at the bottom of the upper cover assembly corresponding to the upper cover inner cavity, an opening is provided on the side of the upper cover assembly corresponding to a port of the steam pipe, and the opening is sealed and 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 water-boiling structure for an electric kettle, 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 water boiling structure of an electric kettle comprises a kettle body 1, a handle 2 is provided on the side of the kettle body 1, a heating assembly 3 is provided at the bottom of the inner cavity of the kettle body 1, an upper cover assembly 4 is provided on the upper part of the kettle body 1, a sealing cover of the upper cover assembly 4 is provided at the mouth of the kettle body 1, a steam pressure relief channel 401 which can connect the inner cavity of the kettle body 1 and the outside air is provided in the upper cover assembly 4, a sealing plug 5 is slidably connected in the steam pressure relief channel 401, and a temperature-sensitive spring piece 6 which is in conflict with or close to the sealing plug 5 is provided below the sealing plug 5, and the temperature-sensitive spring piece 6 drives the sealing plug 5 to rise or fall after deformation according to the temperature, so as to realize that the sealing plug 5 conducts or cuts off the steam pressure relief channel 401;
[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] The upper port of the steam pressure relief channel 401 is equipped with a steam port cover 7, and a plurality of steam exhaust ports 701 are provided on the steam port cover 7; a return spring 8 is also provided in the steam pressure relief channel 401, and both ends of the return spring 8 are abutted between the steam port cover 7 and the sealing plug 5; in addition, a spring positioning portion 53 is extended from the top of the sealing plug 5, and the lower end of the return spring 8 is positioned by the spring positioning portion 53.
[0023] A sealing plug seat 412 extends in the steam pressure relief channel 401, and a pressure relief through hole 402 constituting the steam pressure relief channel 401 is formed on the sealing plug seat 412; the sealing plug 5 includes a plug column 51 which linearly slides with the pressure relief through hole 402 and a plug cap 52 arranged on the upper part of the plug column 51, and the plug cap 52 is supported on the sealing plug seat 412 by a reset spring 8 and isolates the pressure relief through hole 402.
[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 14 is closed, the inner pot is isolated from the air, which can improve the heating efficiency when boiling water.
[0026] 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 9 is provided in the kettle body 1, one end of the steam pipe 9 is connected to the inner cavity of the kettle body 1, and the other end is connected to the thermostat 32.
[0027] The upper cover assembly 4 includes an upper cover 41, an upper cover lining 42 and a metal filter cover 43. The metal filter cover 43 is assembled and connected to the bottom of the upper cover 41, and the upper cover lining 42 is clamped therebetween. The upper cover 41 and the upper cover lining 42 are provided with an upper sleeve 411 and a lower sleeve 421 extending oppositely along the axis respectively. A steam sealing ring 10 is pressed between the upper sleeve 411 and the lower sleeve 421, and together define a steam pressure relief channel 401.
[0028] The sealing plug seat 412 is fixed in the upper sleeve 411, and a supporting ring 422 is fixed in the lower sleeve 421. The temperature-sensitive spring piece 6 is a circular bowl-shaped structure placed on the supporting ring 422. When the temperature of the temperature-sensitive spring piece 6 reaches a set value, it arches upward from the middle to lift the sealing plug 5. The metal filter cover 43 is provided with an exhaust port 431 corresponding to the lower end of the steam pressure relief channel 401.
[0029] The upper cover assembly is provided with an upper cover inner cavity 403 separated from the steam pressure relief channel 401, a steam inlet 432 is provided at the bottom of the upper cover assembly corresponding to the upper cover inner cavity 403, an opening 404 is provided on the side of the upper cover assembly corresponding to a port of the steam pipe 9, and the opening 404 is sealed and connected to a port of the steam pipe 9 through a silicone sleeve 17.
[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 44 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 accompanying drawings.
[0034] At room temperature, the spout cover 44 is in a closed state to prevent water from directly contacting the outside world and play a role in heat preservation. The temperature-sensitive spring 6 in the upper cover assembly 4 is fixed on the upper cover lining 42, and the sealing plug 5 is slidably connected to the upper cover 41. Due to the force of the reset spring 8, the sealing plug 5 is in a state of being tightly pressed against the sealing plug seat 412. The sealing plug 5 is made of elastic silicone material, so the sealing plug 5 can seal the only pressure relief through hole 402 that conducts the inner cavity of the kettle body 1 and the outside air. The water in the liner 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, and the steam enters the steam pressure relief channel 401 through the exhaust port 431 of the metal filter cover 43 to reach the temperature-sensitive spring piece 6. The temperature-sensitive spring piece 6 is deformed due to the heat reaching the set value, and the middle part thereof arches upward and pushes the plug column 51 of the sealing plug 5, and the plug cap 52 of the sealing plug 5 leaves the sealing plug seat 412, so that the steam in the kettle communicates with the outside air through the pressure relief through hole 402.
[0036] It plays the role of exhausting and prevents danger caused by high temperature and high pressure. At this time, the high-temperature steam inside the kettle also enters the steam pipe 9 through the steam inlet 432, the opening 404 and the silicone sleeve 17, and the steam reaches the thermostat 32 at the bottom, thereby cutting off the power supply and stopping heating.
[0037] When the kettle stops heating, high-temperature steam leaks out, causing the water temperature in the kettle to drop. When the temperature drops to the set temperature, the temperature-sensitive spring 6 returns to its original shape after cooling down, and the sealing plug 5 is pushed downward by the elastic potential energy of the reset spring 8, so that the plug cap 52 seals the pressure relief hole 402 again, and the steam pressure relief channel 401 is closed, so that 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.
[0038] 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 water-boiling structure for an electric kettle, 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) is provided with a steam pressure relief channel (401) which can connect the inner cavity of the kettle body (1) and the outside air. A sealing plug (5) is slidably connected to the steam pressure relief channel (401). A temperature-sensitive spring piece (6) which is in contact with or close to the sealing plug (5) is provided below the sealing plug (5). The temperature-sensitive spring piece (6) deforms according to the temperature and drives the sealing plug (5) to rise or fall, so that the sealing plug (5) can conduct or block the steam pressure relief channel (401).
2. The sealed water boiling structure of an electric kettle according to claim 1, Features: The upper end of the steam pressure relief channel (401) is connected to a steam port cover (7), and a plurality of steam exhaust ports (701) are provided on the steam port cover (7). A return spring (8) is also provided in the steam pressure relief channel (401), and two ends of the return spring (8) are abutted between the steam port cover (7) and the sealing plug (5).
3. The sealed water boiling structure of an electric kettle according to claim 2, Features: A sealing plug seat (412) extends into the steam pressure relief channel (401), and a pressure relief through hole (402) constituting the steam pressure relief channel (401) is provided on the sealing plug seat (412); the sealing plug (5) comprises a plug rod (51) linearly slidingly matched with the pressure relief through hole (402) and a plug cap (52) arranged on the upper part of the plug rod (51); the plug cap (52) is supported on the sealing plug seat (412) by a return spring (8) and blocks the pressure relief through hole (402).
4. The sealed water boiling structure of an electric kettle 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. The sealed water boiling structure of an electric kettle according to claim 1, Features The mouth of the kettle body (1) is provided with a spout (14) protruding outward, and a spout cover (44) is provided on the sealing cover of the spout (14). The spout cover (44) is connected to one side of the upper cover assembly (4) via a spout cover rotating shaft (441) and can be freely flipped open and closed relative to the spout (14).
6. The sealed water boiling structure of an electric kettle according to claim 4, 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 (9) being provided inside the kettle body (1), one end of the steam pipe (9) being connected to the inner cavity of the kettle body (1), and the other end of the steam pipe (9) being connected to the thermostat (32).
7. The sealed water boiling structure of an electric kettle according to claim 3, Features The upper cover assembly (4) comprises an upper cover (41), an upper cover liner (42) and a metal filter cover (43); the metal filter cover (43) is assembled and connected to the bottom of the upper cover (41) and the upper cover liner (42) is clamped between the two; the upper cover (41) and the upper cover liner (42) respectively extend in opposite directions along the axis to form an upper sleeve (411) and a lower sleeve (421); a steam sealing ring (10) is pressed between the upper sleeve (411) and the lower sleeve (421) and together define a steam pressure relief channel (401).
8. The sealed water boiling structure of an electric kettle according to claim 7, Features The sealing plug seat (412) is fixed in the upper sleeve (411), a supporting ring (422) is fixed in the lower sleeve (421), the temperature-sensitive spring (6) is a circular bowl-shaped structure placed on the supporting ring (422), and the temperature-sensitive spring (6) is deformed to arch upward from the middle when the temperature reaches a set value to lift the sealing plug (5), and the metal filter cover (43) is provided with an exhaust port (431) corresponding to the lower end of the steam pressure relief channel (401).
9. The sealed water boiling structure of an electric kettle according to claim 6, Features The upper cover assembly is provided with an upper cover inner cavity (403) separated from the steam pressure relief channel (401); a steam inlet (432) is provided at the bottom of the upper cover assembly corresponding to the upper cover inner cavity (403); an opening (404) is provided on the side of the upper cover assembly corresponding to a port of the steam pipe (9); the opening (404) is sealedly connected to a port of the steam pipe (9) via a silicone sleeve (17).
10. The sealed water boiling structure of an electric kettle 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.