Kettle

Abstract

The kettle comprises a kettle body and a water level detection assembly, the water level detection assembly comprises a capacitance detection plate provided with a plurality of conductive protrusions, an installation frame arranged around the capacitance detection plate and a plurality of conductive filling pieces, the installation frame is fixed to the outer side wall of the kettle body, and the conductive filling pieces and the conductive protrusions are arranged in a one-to-one correspondence mode. And the conductive filling pieces are respectively filled in gaps between the corresponding conductive bulges and the kettle body. According to the utility model, the conductive filling piece is arranged between each conductive bulge and the kettle body, so that the gap between each conductive bulge and the kettle body is filled, and the influence of humidity change in the gap between each conductive bulge and the kettle body on the accuracy of capacitance detection is avoided; and the influence on the accuracy of capacitance detection due to different distances between the conductive bulges and the kettle body is avoided, so that the detection of the capacitance detection plate on the water level in the kettle body is more accurate and reliable.

Description

Technical Field

[0001] The utility model belongs to the field of drinking water equipment, and particularly relates to a kettle. Background Art

[0002] Currently, kettles on the market typically use floats as liquid level detection devices. However, floats are easily stuck or blocked by foreign objects, making them unable to accurately detect the water level inside the kettle. While a capacitive detection plate can detect the liquid level without contact with the liquid, the curved outer surface of the kettle and the flat plate result in varying distances between the plate and the kettle, significantly impacting the accuracy of the capacitance detection. This, in turn, results in the plate's inability to accurately measure the liquid level, resulting in a poor user experience. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a kettle to solve at least one of the above problems.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a kettle comprising a kettle body and a water level detection assembly, the water level detection assembly comprising a capacitive detection plate with multiple conductive protrusions, a mounting frame disposed around the capacitive detection plate, and multiple conductive fillers, the mounting frame being fixed to the outer wall of the kettle body, the conductive fillers being disposed in a one-to-one correspondence with the conductive protrusions, and each conductive filler being respectively filled in the gap between its corresponding conductive protrusion and the kettle body. This technical solution has the following technical effects:

[0005] The present invention provides a water level detection assembly with a capacitor detection plate on the outside of the kettle body. The capacitor detection plate can measure the height of the liquid level in the kettle by measuring the change in capacitance, thereby achieving real-time monitoring of the water level in the kettle without contacting the liquid. The measurement accuracy is high and the failure rate is low. The user can know the water level in the kettle in a timely and accurate manner, and the user experience is good. Because when the capacitor detection plate detects the water level in the kettle body through the conductive protrusions, the detection accuracy will be affected by factors such as water vapor in the space formed between the capacitor detection plate and the kettle body. Moreover, when the kettle body has an arc-shaped outer wall, because the capacitor detection plate is a flat plate, the spacing between each conductive protrusion and the kettle body is different, which will also affect the detection accuracy. The larger the distance, the less accurate the detection. By arranging a conductive filling piece between each conductive protrusion and the kettle body, and fitting the two sides of the conductive filling piece to the conductive protrusion and the outer wall of the kettle body respectively, the gap between each conductive protrusion and the kettle body is filled, and the humidity change in the gap between the conductive protrusion and the kettle body is avoided to affect the accuracy of capacitance detection. Because the conductive filling piece has conductive properties, the conductive filling piece is arranged between the conductive protrusion and the outer wall of the kettle body, which is equivalent to all the conductive protrusions being fitted to the outer wall of the kettle body, avoiding the accuracy of capacitance detection being affected by the different spacing between each conductive protrusion and the kettle body, so that the capacitance detection board can detect the water level in the kettle more accurately and reliably.

[0006] In the kettle described above, the conductive filler comprises a flexible conductive layer and adhesive layers disposed on both sides of the flexible conductive layer. The flexible conductive layer is bonded to the conductive protrusion and the outer wall of the kettle body, respectively, via the adhesive layers. The adhesive layers are disposed on opposite sides of the flexible conductive layer, such that one side of the flexible conductive layer is bonded to the conductive protrusion via the adhesive layer, and the other side is bonded to the outer wall of the kettle body via the adhesive layer. This not only fills the gap between the conductive protrusion and the kettle body, but also bonds the capacitance detection plate to the outer wall of the kettle body, thereby providing a tighter connection between the capacitance detection plate and the kettle body.

[0007] In the above-mentioned kettle, the water level detection assembly further includes a mounting plate embedded with all the conductive fillers. When the mounting plate abuts the capacitance detection plate, the conductive fillers on the mounting plate align with and adhere to the conductive protrusions one by one. The mounting plate is removed from the capacitance detection plate after the conductive fillers and the conductive protrusions are bonded. The arrangement of the mounting plate allows, during installation, the mounting plate and the capacitance detection plate to be first superimposed and abutted so that the conductive fillers and the conductive protrusions are aligned and bonded one by one. After the conductive fillers and the conductive protrusions are bonded, the mounting plate is removed from the capacitance detection plate to complete the installation between the conductive fillers and the conductive protrusions. There is no need to align and install the conductive fillers one by one on the conductive protrusions, thereby reducing assembly difficulty and improving assembly efficiency.

[0008] In the aforementioned kettle, the mounting plate and the conductive filler are made of the same material, and a cut is provided between the mounting plate and the conductive filler to separate them. The side of the mounting plate facing the capacitor detection plate is covered with release paper. Because the mounting plate and the conductive filler are made of the same material, different distributions of conductive fillers can be formed on the same plate using different cuts to accommodate the varying distributions of conductive protrusions on the capacitor plate, providing greater adaptability. When the conductive filler and conductive protrusions are installed, the side of the mounting plate facing the capacitor detection plate is covered with release paper. The release paper covers the adhesive surface of the mounting plate to prevent the mounting plate from adhering to the capacitor detection plate, making installation easier.

[0009] In the kettle described above, the conductive filler is provided with a slot, and each conductive protrusion is inserted into the slot of the corresponding conductive filler, so that the conductive filler covers the corresponding conductive protrusion and adheres to the conductive protrusion and the capacitance detection plate surrounding it. The conductive protrusions are inserted one by one into the slots of the corresponding conductive filler, so that the conductive filler adheres to the conductive protrusion and the capacitance detection plate surrounding it simultaneously. While achieving good adhesion, the conductive filler fully covers the outer surface of the conductive protrusion protruding from the capacitance detection plate, preventing outside air from contacting the conductive protrusion and affecting the detection accuracy of the conductive protrusion.

[0010] In the kettle described above, the conductive filler is a conductive sponge, or a conductive foam, or a conductive colloid. The conductive sponge, foam, or colloid has good electrical conductivity and is soft and easily deformable. This deformation allows the conductive protrusion to adhere tightly to the outer surface of the kettle, thereby enhancing detection accuracy of the conductive protrusion.

[0011] In the aforementioned kettle, a double-sided tape is provided on the side of the mounting frame facing the kettle body, and the mounting frame is bonded to the outer wall of the kettle body via the double-sided tape. This double-sided tape serves to position the mounting frame and enhance the seal between the mounting frame and the kettle body, preventing air containing moisture from entering between the capacitor detection plate and the kettle body through the gap between the mounting frame and the kettle body, thereby affecting the accuracy of water level detection by the conductive protrusion.

[0012] In the aforementioned kettle, the mounting frame is provided so as to protrude from the surface of the capacitance detection board on a side facing away from the kettle body, thereby forming a glue filling cavity for glue filling on the side of the capacitance detection board facing away from the kettle body. After the mounting frame and capacitance detection board are mounted on the kettle body, glue is injected into the glue filling cavity. After the glue solidifies, it seals the end surface of the capacitance detection board and the gap between the capacitance detection board and the mounting frame, thereby preventing external moisture and impurities from affecting the detection accuracy of the capacitance detection board, thereby ensuring that the capacitance detection board can accurately detect the water level in the kettle.

[0013] In the above kettle, a stop step and a limiting spring are provided on the inner wall of the mounting frame, the capacitance detection plate is located between the stop step and the limiting spring, and the mounting frame presses the capacitance detection plate onto the stop step through the limiting spring. When the capacitor detection board is installed in place, the limit spring is reset under the action of elastic force and abuts against the side of the capacitor detection board away from the stop step to press the capacitor detection board tightly against the stop step, thereby limiting the position of the capacitor detection board and avoiding the capacitor detection board from being detached from the mounting frame during glue filling. The capacitor detection board can be freely detached from the mounting frame. The limit spring can press capacitor detection boards of various thicknesses against the stop step, which has a wide range of applications and good limiting effect, while reducing the difficulty of installing and disassembling the capacitor detection board and improving assembly efficiency.

[0014] In the kettle described above, the limiting spring is a curved plate that arches toward a side away from the stop step. One end of the curved plate is fixed to the mounting frame, and the other end of the curved plate abuts the capacitor detection plate. The use of a curved plate for the limiting spring facilitates production and processing while increasing the abutment force of the limiting spring against the capacitor detection plate, thereby enhancing the limiting effect of the limiting spring on the capacitor detection plate.

[0015] The features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a three-dimensional diagram of a kettle of the present utility model;

[0018] Figure 2 This is an exploded view of the water level detection component;

[0019] Figure 3 This is a partial cross-sectional view of a kettle of the present utility model;

[0020] Figure 4 The exploded view of the capacitance detection plate and the conductive filler;

[0021] Figure 5 Schematic diagram of the matching between the mounting plate and the conductive filler.

[0022] Reference numerals:

[0023] 100. Pot body;

[0024] 200. Water level detection component;

[0025] 300, capacitance detection plate; 310, conductive protrusion;

[0026] 400, mounting frame; 410, glue filling cavity; 420, stop step; 430, limit spring;

[0027] 500, conductive filler; 510, flexible conductive layer; 520, adhesive layer;

[0028] 600, mounting plate; 610, cutting seam; 620, release paper;

[0029] 700. Double-sided tape. DETAILED DESCRIPTION

[0030] The present invention provides a kettle, comprising a kettle body and a water level detection assembly. The water level detection assembly comprises a capacitive detection plate with multiple conductive protrusions, a mounting frame surrounding the capacitive detection plate, and multiple conductive fillers. The mounting frame is fixed to the outer wall of the kettle body. The conductive fillers are arranged one-to-one with the conductive protrusions, and each conductive filler fills the gap between its corresponding conductive protrusion and the kettle body. The present invention provides a water level detection assembly with a capacitive detection plate mounted on the exterior of the kettle body. The capacitive detection plate measures the level of the liquid in the kettle by measuring changes in capacitance, enabling real-time monitoring of the water level in the kettle without contacting the liquid. This provides high measurement accuracy and low failure rate, allowing users to accurately and promptly monitor the water level in the kettle, providing a good user experience. Because the capacitive detection plate detects the water level in the kettle via the conductive protrusions, detection accuracy can be affected by factors such as water vapor in the space between the capacitive detection plate and the kettle body. Furthermore, when the kettle body has a curved outer wall, the capacitive detection plate is a flat plate, resulting in varying spacing between the conductive protrusions and the kettle body, which can also affect detection accuracy. A greater distance reduces detection accuracy. By arranging a conductive filling piece between each conductive protrusion and the kettle body, and fitting the two sides of the conductive filling piece to the conductive protrusion and the outer wall of the kettle body respectively, the gap between each conductive protrusion and the kettle body is filled, and the humidity change in the gap between the conductive protrusion and the kettle body is avoided to affect the accuracy of capacitance detection. Because the conductive filling piece has conductive properties, the conductive filling piece is arranged between the conductive protrusion and the outer wall of the kettle body, which is equivalent to all the conductive protrusions being fitted to the outer wall of the kettle body, avoiding the accuracy of capacitance detection being affected by the different spacing between each conductive protrusion and the kettle body, so that the capacitance detection board can detect the water level in the kettle more accurately and reliably.

[0031] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0034] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] Example:

[0037] A kettle, such as Figures 1 to 5 As shown, the kettle body 100 and the water level detection assembly 200 are provided on the outer wall of the kettle body 100 for detecting the water level in the kettle body 100. The water level detection assembly 200 includes a capacitance detection plate 300 and a mounting frame 400. The capacitance detection plate 300 is embedded in the mounting frame 400 so that the mounting frame 400 is arranged around the capacitance detection plate 300. A plurality of conductive protrusions 310 are provided on the side of the capacitance detection plate 300 facing the kettle body 100. The mounting frame 400 is fixed to the outer wall of the kettle body 100. A conductive filling member 500 is provided between the capacitance detection plate 300 and the kettle body 100. There are multiple conductive filling members 500. The multiple conductive filling members 500 are independently provided and correspond one-to-one with the conductive protrusions 310 to fill the gap between the corresponding conductive protrusions 310 and the kettle body 100. The different conductive protrusions 310 on the capacitor detection plate 300 measure the height of the liquid level in the kettle body 100 by measuring the change in capacitance. When the liquid level rises, the dielectric constant value detected by the capacitor detection plate 300 increases accordingly, and thus the capacitance increases. Conversely, when the liquid level drops, the dielectric constant value detected by the capacitor detection plate 300 decreases accordingly, and the capacitance also decreases.

[0038] The present invention provides a water level detection assembly 200 having a capacitance detection plate 300 on the outside of the kettle body 100. The capacitance detection plate 300 can measure the height of the liquid level in the kettle body 100 by measuring the change in capacitance, thereby achieving real-time monitoring of the water level in the kettle without contacting the liquid. The measurement accuracy is high and the failure rate is low. The user can know the water level in the kettle in a timely and accurate manner, and the user experience is good. Because when the capacitance detection plate 300 detects the water level in the kettle body 100 through the conductive protrusions 310, the detection accuracy will be affected by factors such as water vapor in the space formed between the capacitance detection plate 300 and the kettle body 100. Moreover, when the kettle body 100 has an arc-shaped outer wall, because the capacitance detection plate 300 is a flat plate, the spacing between each conductive protrusion 310 and the kettle body 100 is different, which will also affect the detection accuracy. The larger the distance, the less accurate the detection. By arranging a conductive filling piece 500 between each conductive protrusion 310 and the kettle body 100, and fitting the two sides of the conductive filling piece 500 to the outer side walls of the conductive protrusion 310 and the kettle body 100 respectively, the gap between each conductive protrusion 310 and the kettle body 100 is filled, and the humidity change in the gap between the conductive protrusion 310 and the kettle body 100 is avoided to affect the accuracy of capacitance detection. Because the conductive filling piece 500 has conductive properties, the conductive filling piece 500 is arranged between the conductive protrusion 310 and the outer side wall of the kettle body 100, which is equivalent to all the conductive protrusions 310 being fitted to the outer side wall of the kettle body 100, avoiding the different spacing between each conductive protrusion 310 and the kettle body 100 affecting the accuracy of capacitance detection, so that the capacitance detection plate 300 detects the water level in the kettle body 100 more accurately and reliably.

[0039] like Figure 3 As shown, in this embodiment, the conductive filler 500 includes a flexible conductive layer 510 and an adhesive layer 520. The adhesive layer 520 is arranged on two opposite sides of the flexible conductive layer 510, so that one side of the flexible conductive layer 510 is bonded to the conductive protrusion 310 through the adhesive layer 520, and the other side is bonded to the outer wall of the kettle body 100 through the adhesive layer 520. This not only fills the gap between the conductive protrusion 310 and the kettle body 100, but also bonds the capacitor detection plate 300 to the outer wall of the kettle body 100, making the connection between the capacitor detection plate 300 and the kettle body 100 tighter.

[0040] In this embodiment, the water level detection assembly 200 also includes a mounting plate 600. Before the conductive filler 500 mounting plate 600 is installed between the kettle body 100 and the conductive protrusion 310, all the conductive fillers 500 are embedded on the mounting plate 600. The setting of the mounting plate 600 allows the mounting plate 600 to be overlapped and abutted with the capacitor detection plate 300 during installation so that the conductive filler 500 and the conductive protrusion 310 are aligned and bonded one by one. After the conductive filler 500 and the conductive protrusion 310 are bonded, the mounting plate 600 is removed from the capacitor detection plate 300 to complete the installation between the conductive filler 500 and the conductive protrusion 310. There is no need to align and install the conductive filler 500 one by one on the conductive protrusion 310, which reduces the difficulty of assembly and improves the assembly efficiency. In this embodiment, it is preferred that the mounting plate 600 and the conductive filler 500 are made of the same material, and their initial structure is the same plate. The plate is cut to divide different positions of the plate into the mounting plate 600 and the conductive filler 500, so that a cutting seam 610 is provided between the mounting plate 600 and the conductive filler 500. Through different cutting seams 610, conductive fillers 500 with different distributions can be formed on the plate to adapt to the different distributions of the conductive protrusions 310 on the capacitor plate, which has stronger applicability. When the conductive filler 500 and the conductive protrusion 310 are installed, the side of the mounting plate 600 facing the capacitor detection plate 300 is covered with release paper 620. The release paper 620 covers the sticky surface of the mounting plate 600 to prevent the mounting plate 600 from adhering to the capacitor detection plate 300, making installation convenient.

[0041] The end surface of the conductive filler 500 in this embodiment that contacts the conductive protrusion 310 can be the same as the conductive protrusion 310, so as to only cover the end surface of the conductive protrusion 310, or it can be larger than the end surface of the conductive protrusion 310, that is, a slot is provided on the conductive filler 500, and the conductive protrusions 310 are inserted one by one into the slots of the corresponding conductive filler 500, so that the conductive filler 500 is covered on the corresponding conductive protrusion 310 and bonded to the conductive protrusion 310 and the capacitor detection plate 300 on its surrounding side. While the bonding effect is good, the conductive filler 500 fully covers the outer surface of the conductive protrusion 310 protruding from the capacitor detection plate 300, preventing outside air from contacting the conductive protrusion 310 and affecting the detection accuracy of the conductive protrusion 310.

[0042] In this embodiment, the conductive filler 500 is a conductive sponge. The conductive sponge has good electrical conductivity and is soft and easily deformable. By deforming, it can closely adhere to the conductive protrusion 310 and the outer surface of the kettle, thereby enhancing the detection accuracy of the conductive protrusion 310. Of course, the conductive filler 500 in this embodiment can also be a conductive material such as conductive foam or conductive colloid.

[0043] like Figure 2 and Figure 3 As shown, double-sided tape 700 is provided on the side of the mounting frame 400 facing the kettle body 100, and the mounting frame 400 is adhered to the outer wall of the kettle body 100 by the double-sided tape 700 to limit the mounting frame 400 and enhance the sealing between the mounting frame 400 and the kettle body 100, thereby preventing air containing water vapor from passing through the gap between the mounting frame 400 and the kettle body 100 and entering between the capacitor detection plate 300 and the kettle body 100 to affect the accuracy of the conductive protrusion 310 in detecting the water level.

[0044] In this embodiment, the side of the mounting frame 400 facing away from the kettle body 100 protrudes from the plate surface of the capacitor detection plate 300, so as to form a glue filling cavity 410 on the side of the capacitor detection plate 300 facing away from the kettle body 100. After the mounting frame 400 and the capacitor detection plate 300 are installed on the kettle body 100, colloid is injected into the glue filling cavity 410. After the colloid solidifies, the colloid seals the end face of the capacitor detection plate 300 and the gap between the capacitor detection plate 300 and the mounting frame 400, so as to prevent external water vapor impurities from affecting the detection accuracy of the capacitor detection plate 300, thereby ensuring that the capacitor detection plate 300 can accurately detect the water level in the kettle.

[0045] In this embodiment, a stop step 420 and a limiting spring piece 430 are provided on the inner wall of the installation frame 400. When installing the capacitor detection plate 300, the capacitor detection plate 300 is first installed on the installation frame 400. When the side of the capacitor detection plate 300 facing the kettle body 100 abuts against the stop step 420, it indicates that the capacitor detection plate 300 has completed the installation and positioning, reducing the difficulty of assembly and ensuring that the capacitor detection plate 300 is quickly embedded in the set position of the installation frame 400. In the process of embedding the capacitor detection plate 300 into the installation frame 400, the capacitor detection plate 300 first pushes away the limiting spring piece 430, and the limiting spring piece 430 undergoes elastic deformation to form a positive force on the capacitor detection plate 300. To avoid, when the capacitance detection plate 300 is installed in place, the limiting spring piece 430 is reset under the action of elastic force and abuts against the side of the capacitance detection plate 300 away from the stop step 420, so as to press the capacitance detection plate 300 against the stop step 420, thereby limiting the capacitance detection plate 300 and preventing the capacitance detection plate 300 from being detached from the installation frame 400 during glue filling, and the capacitance detection plate 300 from freely escaping from the installation frame 400. The limiting spring piece 430 can press capacitance detection plates 300 of various thicknesses against the stop step 420, has a wide range of applications, and has a good limiting effect. At the same time, it reduces the difficulty of installing and disassembling the capacitance detection plate 300 and improves assembly efficiency. Preferably, the limiting spring clip 430 is an arc-shaped plate, which is arched toward the side away from the stop step 420, with one end of the arc-shaped plate fixed to the mounting frame 400 and the other end of the arc-shaped plate abutting against the capacitor detection plate 300. The limiting spring clip 430 adopts an arc-shaped plate, which is convenient for production and processing while increasing the abutting force of the limiting spring clip 430 on the capacitor detection plate 300, thereby enhancing the limiting effect of the limiting spring clip 430 on the capacitor detection plate 300.

[0046] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A kettle, comprising a kettle body and a water level detection assembly, characterized in that: The water level detection assembly includes a capacitor detection plate provided with multiple conductive protrusions, an installation frame arranged around the capacitor detection plate, and multiple conductive filling pieces. The installation frame is fixed on the outer wall of the kettle body. The conductive filling pieces are arranged in a one-to-one correspondence with the conductive protrusions, and each conductive filling piece is respectively filled in the gap between its corresponding conductive protrusion and the kettle body.

2. A kettle according to claim 1, characterized in that: The conductive filling piece includes a flexible conductive layer and adhesive layers provided on both sides of the flexible conductive layer, and the flexible conductive layer is respectively bonded to the conductive protrusion and the outer side wall of the kettle body through the adhesive layers.

3. A kettle according to claim 2, characterized in that: The water level detection assembly also includes a mounting plate embedded with all conductive filling pieces. When the mounting plate abuts against the capacitor detection plate, the conductive filling pieces on the mounting plate correspond one-to-one with the conductive protrusions and are bonded together. The mounting plate is removed from the capacitor detection plate after the conductive filling pieces are bonded together with the conductive protrusions.

4. A kettle according to claim 3, characterized in that: The mounting plate and the conductive filler are made of the same material. A cutting seam is provided between the mounting plate and the conductive filler for separating the two. The side of the mounting plate facing the capacitance detection plate is covered with release paper.

5. The kettle according to claim 1, characterized in that: The conductive filling piece is provided with a slot, and each conductive protrusion is respectively inserted into the slot of the corresponding conductive filling piece, so that the conductive filling piece is covered on the corresponding conductive protrusion and bonded to the conductive protrusion and the capacitance detection plate around it.

6. A kettle according to any one of claims 1 to 5, characterized in that: The conductive filling piece is a conductive sponge; or, the conductive filling piece is a conductive foam; or, the conductive filling piece is a conductive colloid.

7. The kettle according to claim 1, characterized in that: A double-sided tape is provided on a side of the installation frame facing the kettle body, and the installation frame is adhered to the outer side wall of the kettle body through the double-sided tape.

8. The kettle according to claim 1, characterized in that: The side of the installation frame facing away from the kettle body is protruded from the plate surface of the capacitance detection plate, so as to form a glue pouring cavity for glue pouring on the side of the capacitance detection plate facing away from the kettle body.

9. The kettle according to claim 8, characterized in that: A stop step and a limiting spring are provided on the inner wall of the installation frame. The capacitance detection plate is located between the stop step and the limiting spring. The installation frame presses the capacitance detection plate onto the stop step through the limiting spring.

10. The kettle according to claim 9, characterized in that: The limiting spring piece is an arc-shaped plate, which is arched toward a side away from the stop step. One end of the arc-shaped plate is fixed to the mounting frame, and the other end of the arc-shaped plate abuts against the capacitance detection plate.

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