Kettle with sterilization function

Abstract

The utility model discloses a teakettle with a sterilization function, which comprises a teakettle body and a sterilization device, the teakettle body comprises a kettle body and a handle, a water storage space for containing water is arranged in the kettle body, and the inside of the handle is hollow and is communicated with the water storage space; the filter element assembly is arranged in the handle and used for filtering water in the water storage space; the heating assembly is arranged in the kettle body and used for heating water in the water storage space; and the pump is connected between the handle and the water storage space and can be used for conveying the water heated by the heating assembly into the handle so as to sterilize the filter element assembly. The filter element assembly is installed in the handle of the teakettle, the filter element assembly can filter water in the kettle body before heating, the filtered water can guarantee good water quality after being heated by the heating assembly, meanwhile, high-temperature water heated by the heating assembly can be conveyed into the handle under the action of the pump, and the water quality is guaranteed. And the filter element assembly in the handle is sterilized at high temperature, so that the water flowing out of the filter element assembly is always ensured to have relatively high cleanliness.

Description

Technical Field

[0001] The utility model relates to the technical field of small household appliances, and particularly to a kettle with a sterilization function. Background Art

[0002] A kettle is a commonly used water heating container. Due to its advantages of fast water heating, safety and reliability, simple use and easy portability, it has become a small household appliance that is frequently used in people's lives.

[0003] The kettle mainly includes: an inner tank, an outer shell surrounding the inner tank, and a heating device located below the inner tank. By providing an electrical connector on the kettle body or providing a base coupled to the kettle body at the bottom of the kettle body, the kettle can be powered; when the user adds water to the inner tank and powers on the kettle, the heating device can heat the inner tank.

[0004] Tap water contains a lot of impurities such as bacteria and particulate matter. Existing kettles generally only have a heating function and cannot ensure the cleanliness of the water. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a kettle with a sterilization function, which can not only utilize a filter element to achieve the function of filtering particulate matter, but also utilize high-temperature water to sterilize the filter element, thereby improving the cleanliness of the water in the kettle.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A kettle with sterilization function, comprising:

[0008] The kettle body comprises a kettle body and a handle, wherein the kettle body is provided with a water storage space for storing water, and the handle is hollow inside and communicates with the water storage space;

[0009] A filter element assembly is disposed in the handle and is used to filter the water in the water storage space;

[0010] A heating component, disposed in the kettle body, for heating the water in the water storage space;

[0011] A pump is connected between the handle and the water storage space, and can transport the water heated by the heating component to the handle to sterilize the filter element component.

[0012] As one of the embodiments, a first space for accommodating the filter element assembly, a water inlet channel and a water outlet channel respectively connected to two ends of the first space are formed in the handle, and the water in the water storage space can flow back to the water storage space after passing through the water inlet channel, the pump, the filter element assembly, and the water outlet channel in sequence.

[0013] As one embodiment, the filter element assembly includes a shell and a filter element disposed in the shell, and a gap is provided between the shell and an inner wall of the handle.

[0014] As one implementation manner, the gap is greater than 2 mm.

[0015] As one embodiment, the kettle further includes a heat insulating layer, and the heat insulating layer is disposed in the gap.

[0016] As one embodiment, the thermal insulation layer is attached to the outer peripheral surface of the filter element assembly, and the thermal insulation layer includes at least one of thermal insulation cotton, EPS (expanded polystyrene board) or graphene.

[0017] As one embodiment, the heat insulation layer includes a coating formed on the outer peripheral surface of the filter element assembly and / or the inner wall of the handle.

[0018] As one embodiment, the thermal insulation layer includes a thermal insulation board, at least one of the front and back surfaces of the thermal insulation board is provided with array-arranged grooves, and the side of the thermal insulation board provided with the grooves is in contact with the outer peripheral surface of the corresponding filter element assembly or the inner wall surface of the handle.

[0019] As one embodiment, the thermal insulation layer includes at least two arc-shaped sub-insulation plates, and each sub-insulation plate is spliced ​​in a circumferential direction of the filter element assembly to form a ring.

[0020] As one embodiment, the kettle further includes at least one sealing ring, which is sleeved on the outer peripheral surface of the shell and seals the gap.

[0021] The handle of the kettle of the utility model is equipped with a filter element assembly, which can filter the water in the kettle body before heating. The filtered water can ensure good water quality after being heated by the heating element. At the same time, the high-temperature water heated by the heating element can be transported to the handle under the action of a pump to sterilize the filter element assembly in the handle at high temperature, thereby always ensuring that the water flowing out of the filter element assembly has a high degree of cleanliness. In addition, the handle of the kettle of the utility model is also provided with a heat insulation structure for reducing heat transfer, so that the handle will not be overscalded during the process of sterilizing the filter element assembly with high-temperature water, effectively improving the safety of the kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a kettle with a sterilization function according to an embodiment of the utility model is shown;

[0023] Figure 2A schematic diagram of the structure decomposition of a kettle body and a base of a kettle with a sterilization function according to an embodiment of the utility model is shown;

[0024] Figure 3 A schematic diagram showing the internal structure of a kettle with a sterilization function according to an embodiment of the utility model is shown;

[0025] Figure 4 A schematic diagram showing a state in which a filter element assembly of a kettle with a sterilization function is separated from a kettle body according to an embodiment of the utility model;

[0026] Figure 5 A partial enlarged view of a heat insulation layer of a kettle with a sterilization function according to an embodiment of the utility model is shown.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] In the present invention, the terms "disposed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0033] See also Figures 1 to 3 As shown, an embodiment of the present application provides a kettle with a sterilization function, which mainly includes a kettle body 10, a filter element assembly 20, a pump 30 and a heating assembly 1. The kettle body 10 includes a kettle body 11 and a handle 12. The kettle body 11 is provided with a water storage space for storing water. The interior of the handle 12 is hollow and connected to the water storage space; the filter element assembly 20 is arranged in the handle 12, and is used to filter the water in the water storage space; the heating assembly 1 is arranged in the kettle body 10, and is used to heat the water in the water storage space; the pump 30 is connected between the handle 12 and the water storage space, and can transport the water heated by the heating assembly 1 to the handle 12 to sterilize the filter element assembly 20.

[0034] The pump 30 can not only deliver high-temperature water to the filter element assembly 20 when the filter element assembly 20 needs to be sterilized, but can also actively deliver water from the water storage space to the filter element assembly 20 for filtration and then circulate it back to the water storage space when the water in the water storage space needs to be filtered. In this way, after multiple cycles of filtration, the water in the water storage space can meet the water quality requirements.

[0035] A filter element assembly 20 is installed in the handle 12 of the kettle of the present invention. The filter element assembly 20 can filter the water in the kettle body 10 before heating, so that the filtered water can ensure good water quality after being heated by the heating component 1; at the same time, after the filter element assembly 20 has filtered for a period of time, bacteria will breed in the filter element assembly 20. The high-temperature water heated by the heating component 1, for example, water at 70°C to 80°C, can be transported to the handle under the action of the pump 30, and the filter element assembly 20 in the handle 12 is sterilized at high temperature, thereby ensuring that the water flowing out of the filter element assembly 20 always has a high degree of cleanliness.

[0036] The handle 12 may be a part of the kettle body 10 , or may be two different structural components from the kettle body 10 , and may be detachably connected to the kettle body 10 via a fastener or a connecting structure.

[0037] Since tap water often contains some impurities such as particulate matter, residual chlorine, and heavy metals, the present application uses a filter element assembly 20 to filter the water injected into the kettle, which can filter out most of the impurities and improve the water quality before heating. The heating assembly 1 can then work to heat the tap water in the kettle body 10, killing bacteria, viruses and other impurities in the water by high temperature. In this way, the boiled water obtained after physical filtration and high-temperature disinfection in the kettle can meet higher water quality requirements, which is beneficial to ensuring the drinking water health of users.

[0038] At the same time, the filter element assembly 20 can be detachably installed in the receiving cavity of the handle 12. In this way, the filter element assembly 20 is designed as a consumable product designed and manufactured separately from the kettle body 10, and the filter element assembly 20 can be easily taken out and replaced from the kettle body 10. In this way, consumers can replace the filter element assembly 20 inside the kettle after using the kettle for a period of time, thereby ensuring the cleanliness of the water quality, which is convenient and quick.

[0039] For example, a take-out opening is provided at the top of the handle 12, and the filter element assembly 20 can be taken out and loaded from the take-out opening. By making the filter element assembly 20 detachable, it can be conveniently replaced after the filter element assembly 20 reaches the end of its service life; by arranging the filter element in the handle 12, the internal space of the kettle can be fully utilized, so that the kettle body 10 has sufficient water storage space, and the overall structural compactness of the kettle is improved to a certain extent.

[0040] Figure 1 and Figure 2 In the illustrated embodiment, one of the kettles is shown, which mainly includes a handle 12 for holding, a kettle body 10 for holding water, and a base 3 for electrically heating. For example, the base 3 and the kettle body 10 can be constructed as two parts that are independent of each other, and the base 3 and the kettle body 10 can be detachably assembled together. While the base 3 serves as a bearing seat for the kettle body 10, an electrical connection plug is also led out of the base 3, so that the base 3 can be used as an electrical connection base for the kettle body 10 after the base 3 is powered on. In other embodiments, the base 3 can also be integrally provided with the kettle body 10, that is, the base 3 is integrally formed at the bottom of the kettle body 10, and the kettle body 10 can be directly powered on to heat the water inside it.

[0041] In one embodiment, the kettle body 10 of the kettle with a sterilization function is provided with an inner liner 13 and a heating assembly 1. The heating assembly 1 is located below the inner liner 13 and can heat the water injected into the inner liner 13. In addition, a lid 111 can be provided above the kettle body 11. The lid 111 is used to cover the upper part of the inner liner 13 to shield the inner liner 13 therein, thereby improving the efficiency of boiling water and preventing foreign matter from entering the inner liner 13 to pollute the water quality. Exemplarily, the lid 111 is rotatably connected to the top of the kettle body 11, so that the kettle body 11 can be conveniently opened or closed.

[0042] When using a kettle to boil water, first inject a certain amount of water into the inner tank 13, then cover the kettle lid 111, and finally turn on the pump 30. During the operation of the pump 30, the water in the inner tank 13 is pumped to the handle 12, and the filter element assembly 20 in the handle 12 filters the water. Under the action of the pump 30, the water in the inner tank 13 can reach the ideal water quality after repeated filtration, and basically filter out the particulate matter, heavy metals, alkaline substances, etc. in the tap water. Later, the heating component 1 can work to heat the tap water in the inner tank 13, and kill the bacteria, viruses and other impurities in the water by high temperature. In this way, the boiled water obtained after physical filtration and high-temperature disinfection of the kettle can meet higher water quality requirements, which is conducive to ensuring the drinking water health of users.

[0043] like Figure 3 As shown, the pump 30 of this embodiment is arranged below the inner tank 13 , the water inlet end of the pump 30 is connected to the inner tank 13 , the water outlet end of the pump 30 is connected to the bottom of the filter element assembly 20 , and the top of the filter element assembly 20 is connected to the top of the inner tank 13 .

[0044] By placing the pump 30 below the inner tank 13 and the filter element assembly 20, the water in the inner tank 13 can naturally enter the pump 30 under the action of gravity, and the pump 30 presses the water into the handle 12 from bottom to top during operation, and the water flows out from the top of the filter element assembly 20 after passing through the filter element assembly 20, and then returns to the inner tank 13, completing a filtering cycle. If the water pump continues to work, the filter element assembly 20 will repeatedly filter the water.

[0045] It is understandable that in other embodiments, the pump 30 can also be arranged above the inner tank 13 and the filter element assembly 20. After the pump 30 sucks the water from the inner tank 13, it flows out through its water outlet. Under the action of gravity and the pump 30, the water can pass through the filter element assembly 20 and enter the inner tank 13 from the bottom, completing a filtration cycle.

[0046] In one embodiment, the main filter materials in the filter element assembly 20 are activated carbon and resin. In addition, the filter materials can also be used in combination with filter screens, non-woven fabrics, etc. to achieve multiple filtering effects.

[0047] Further integration Figure 4As shown, the handle 1 is hollow inside, forming a first space 12Q for accommodating the filter element assembly 20, and the top of the handle 1 can be formed as an open end, and the filter element assembly 20 can be loaded into the first space 12Q from the open end of the top of the handle 1. In addition, a cover covering the open end can be provided on the top of the handle 1, so that the filter element assembly 20 cannot be seen from the outside, thereby improving the aesthetics of the product and the cleanliness of the inside of the handle 1.

[0048] In one embodiment, a water inlet channel 12A and a water outlet channel 12B are also formed on the handle 12, and the filter element assembly 20 is disposed in the handle 12, and the filter element assembly 20 is located between the water inlet channel 12A and the water outlet channel 12B in the axial direction of the handle 12, the water inlet channel 12A can be located at the lower part of the handle 12, and the water outlet channel 12B can be located at the upper part of the handle 12, and the water in the water storage space can flow back to the water storage space after passing through the water inlet channel 12A, the pump 30, the filter element assembly 20, and the water outlet channel 12B in sequence.

[0049] When the filter element assembly 20 is heated by high-temperature water, the heat in the high-temperature water will be transferred to the filter element assembly 20. In order to prevent the high temperature of the filter element assembly 20 from being transferred to the handle 12, causing the handle 12 to be overheated, in one embodiment, the filter element assembly 20 includes a housing 21 and a filter element 22 disposed in the housing 21. When the filter element assembly 20 is installed in the first space 12Q of the handle 12, there is a gap between the housing 21 and the inner wall of the handle 12. The filter element 22 is protected by the housing 21. The housing 21 can provide an inlet for water to enter the filter element 22 and an outlet for water to flow out of the filter element 22, and can also facilitate the overall installation and disassembly of the filter element assembly 20. When the filter element 22 needs to be replaced or maintained, the filter element assembly 20 can be removed from the handle 12 by simply removing the housing 21.

[0050] By reserving a sufficiently large gap between the outer shell 21 of the filter element assembly 20 and the inner wall of the handle 12 to avoid direct contact between the outer shell 21 and the inner wall of the handle 12, the heat of the filter element assembly 20 can be reduced from being directly transferred to the handle 12. For example, a sealing ring 24 can be provided at both ends of the filter element assembly 20. For example, the sealing ring 24 can be made of insulating rubber or silicone to avoid the heat of the filter element assembly 20 being directly transferred to the handle 12. The sealing ring 24 is sleeved on the outer peripheral surface of the outer shell 21 and the gap is sealed, which can prevent high-temperature water from entering the gap in the handle 12 and prevent the temperature from being directly transferred to the handle 12 through the outer shell 21. Exemplarily, the gap is greater than 2 mm.

[0051] In another embodiment, Figure 4As shown, in order to reduce the heat transfer between the filter element assembly 20 and the handle 12 , the kettle further includes an insulating layer 23 , which is disposed in the gap to prevent the heat of the filter element assembly 20 from being radiated to the inner wall of the handle 12 .

[0052] Specifically, the heat insulation layer 23 can be attached to the outer peripheral surface of the filter element assembly 20, so as to facilitate assembly and positioning. The heat insulation layer 23 can include at least one of heat insulation cotton, EPS or graphene, which can achieve better heat insulation performance.

[0053] It is understandable that, in other embodiments, the heat insulating layer 23 may include a coating formed on the outer peripheral surface of the filter element assembly 20 and / or the inner wall of the handle 12. By adopting a coating structure, the heat insulating layer 23 is integrated into the outer peripheral surface of the filter element assembly 20 or the inner wall of the handle 12, which can reduce the manufacturing cost, simplify the manufacturing process, and improve the assembly efficiency.

[0054] like Figure 4 and Figure 5 As shown, in one embodiment, the heat insulation layer 23 includes a heat insulation plate, which is located in the gap between the outer peripheral surface of the filter element assembly 20 and the inner wall of the handle 12 .

[0055] Specifically, at least one of the front and back surfaces of the heat insulation board may be provided with an array of grooves 230, and the side of the heat insulation board provided with the grooves 230 is in contact with the outer peripheral surface of the corresponding filter element assembly 20 or the inner wall surface of the handle 12. Figure 5 As shown, an array of grooves 230 are provided on the front and back sides of the heat insulation board, and the grooves 230 are not interconnected. When the grooves 230 are pressed against the outer peripheral surface of the corresponding filter element assembly 20 and the inner wall surface of the handle 12, the flow of hot air between adjacent grooves 230 can be prevented, thereby reducing the heat transfer effect.

[0056] In this way, the corresponding surface of the heat insulation plate is a honeycomb-shaped groove structure. On the one hand, the heat insulation plate itself can isolate the heat transferred from the filter element assembly 20 to the inner wall of the handle 12 in the radial direction. On the other hand, by fitting the side of the heat insulation plate with the groove 230 and the outer peripheral surface of the filter element assembly 20, and / or the side of the heat insulation plate with the groove 230 and the inner wall surface of the handle 12, the grooves of the heat insulation plate and the corresponding outer peripheral surface of the filter element assembly 20 and the inner wall surface of the handle 12 can be made to form a plurality of independent cavities, and heat is difficult to be transferred in the axial direction of the handle 12. Therefore, the axial movement of the handle 12 after the air is heated is also limited, which greatly reduces the heat transfer and achieves a good heat insulation effect.

[0057] Considering that if it is necessary to ensure that the insulation board has a high fit with the inner filter element assembly 20 and the outer handle 12, the processing accuracy of the annular insulation board is required to be high, which will increase the manufacturing and assembly costs. In one embodiment, the insulation layer 23 includes at least two arc-shaped sub-insulation boards, and each sub-insulation board is spliced ​​in the circumferential direction of the filter element assembly 20 to form a ring. In the process of installing the filter element assembly 20, each sub-insulation board can be firstly pressed against the outer peripheral surface of the filter element assembly 20 and spliced ​​into an annular structure, and then installed into the first space 12Q of the handle 12 together with the filter element assembly 20, which can ensure the closeness between each sub-insulation board and the outer peripheral surface of the filter element assembly 20, and the closeness between each sub-insulation board and the inner wall of the handle 12, and also reduce the production cost.

[0058] In one embodiment, the kettle has at least one sealing ring 24, which is sleeved on the outer circumference of the shell 21 and seals the gap. Preferably, two sealing rings 24 are sleeved on both ends of the shell 21 to seal the heat insulation layer 23 between them.

[0059] Specifically, the sealing ring 24 is located between the water inlet channel 12A and the water outlet channel 12B. When the filter element assembly 20 is installed in the handle 12, the sealing ring 24 is elastically compressed between the housing 21 and the handle 12, so that the water inlet channel 12A and the water outlet channel 12B are isolated in two different spaces in the upper and lower parts by the sealing ring 24, so that the water entering the handle 12 must pass through the water inlet channel 12A and the filter element assembly 20, and then flow out from the water outlet channel 12B, and it can also prevent the water above the filter element assembly 20 from flowing back to the water inlet channel 12A below from the gap between the filter element assembly 20 and the handle 12 under the action of gravity.

[0060] For example, only one sealing ring 24 may be sleeved on the outer circumference of the housing 21, which can only enhance the sealing effect of the gap between the filter element assembly 20 and the handle 12, separate the water inlet channel 12A from the water outlet channel 12B, and further prevent heat transfer. Alternatively, two or more sealing rings 24 may be sleeved on the outer circumference of the housing 21, and the two sealing rings 24 are spaced apart in the axial direction of the housing 21. For example, a sealing ring 24 is respectively provided at both ends of each filter element assembly 20, and the sealing ring 24 located at the top is close to the water outlet channel 12B and located below the water outlet channel 12B, which can prevent the purified water flowing out of the water outlet channel 12B from flowing down to the gap between the filter element assembly 20 and the handle 12; the sealing ring 24 located at the bottom is close to the water inlet channel 12A and located above the water inlet channel 12A, which prevents unfiltered water from filling the gap between the filter element assembly 20 and the handle 12, resulting in unpurified water always being present. It is understandable that, in other embodiments, in order to improve the sealing performance, at least one sealing ring 24 may be provided between the sealing rings 24 at both ends of the housing 21, thereby achieving multiple sealing and heat insulation effects.

[0061] Through the above arrangement, a heat-insulating structure for reducing heat transfer is also provided in the handle 12 of the kettle of the present invention, so that during the process of sterilizing the filter element assembly 20 with high-temperature water, the handle 12 will not be overheated, thereby preventing consumers from being scalded when grasping the handle 12, thereby effectively improving the safety of the kettle.

[0062] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A kettle with sterilization function, characterized in that: include: A kettle body (10) comprises a kettle body (11) and a handle (12); a water storage space for storing water is provided in the kettle body (11); the handle (12) is hollow inside and communicates with the water storage space; A filter element assembly (20) is disposed in the handle (12) and is used to filter the water in the water storage space; A heating component (1) is arranged in the kettle body (10) and is used to heat the water in the water storage space; A pump (30) is connected between the handle (12) and the water storage space, and can transport the water heated by the heating component (1) into the handle (12) to sterilize the filter element component (20).

2. The kettle with sterilization function according to claim 1, characterized in that: The handle (12) is formed with a first space (12Q) for accommodating the filter element assembly (20), a water inlet channel (12A) and a water outlet channel (12B) respectively connected to two ends of the first space (12Q); water in the water storage space can flow back to the water storage space through the water inlet channel (12A), the pump (30), the filter element assembly (20), and the water outlet channel (12B) in sequence.

3. The kettle with sterilization function according to claim 1 or 2, characterized in that: The filter element assembly (20) comprises a housing (21) and a filter element (22) arranged in the housing (21); a gap is provided between the housing (21) and the inner wall of the handle (12).

4. The kettle with sterilization function according to claim 3, characterized in that: The gap is greater than 2 mm.

5. The kettle with sterilization function according to claim 3, characterized in that: The kettle further comprises a heat insulating layer (23), wherein the heat insulating layer (23) is arranged in the gap.

6. The kettle with sterilization function according to claim 5, characterized in that: The heat insulation layer (23) is attached to the outer peripheral surface of the filter element assembly (20), and the heat insulation layer (23) comprises heat insulation cotton, EPS or graphene.

7. The kettle with sterilization function according to claim 5, characterized in that: The heat insulation layer (23) comprises a coating formed on the outer peripheral surface of the filter element assembly (20) and / or the inner wall of the handle (12).

8. The kettle with sterilization function according to claim 5, characterized in that: The heat insulation layer (23) comprises a heat insulation board, at least one of the front and back surfaces of the heat insulation board is provided with grooves (230) arranged in an array, and the side of the heat insulation board provided with the grooves (230) is in contact with the outer peripheral surface of the corresponding filter element assembly (20) or the inner wall surface of the handle (12).

9. The kettle with sterilization function according to claim 8, characterized in that: The heat insulation layer (23) comprises at least two arc-shaped sub-heat insulation plates, and each sub-heat insulation plate is spliced ​​in the circumferential direction of the filter element assembly to form a ring.

10. The kettle with sterilization function according to claim 3, characterized in that: The kettle further comprises at least one sealing ring (24), wherein the sealing ring (24) is sleeved on the outer peripheral surface of the outer shell (21) and seals the gap.

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