Liquid heater

Abstract

The utility model relates to a kitchen appliance, in particular to a liquid heater, which comprises a glass cup body and a detection plate arranged on the outer side wall of the glass cup body and used for detecting the liquid level height across the air, and the detection plate comprises a detection area provided with a capacitance pole piece and a processing area provided with a processing chip. The detection area is located on the side, facing the glass cup body, of the detection plate, the processing area is located on the other side of the detection plate, the capacitor pole piece is electrically connected with the processing chip, the detection device is characterized by further comprising a main control system, a wiring terminal electrically connected with the processing chip is arranged on the processing area, the detection plate is electrically connected with the main control system through the wiring terminal, and the processing chip is electrically connected with the processing chip through the main control system. During installation, the detection area is located below the processing area so that the detection plate can be installed on the outer side wall of the glass cup body. According to the liquid heater, liquid level detection in a wider capacity range can be achieved, and the problems of water inlet faults and detection failures of the detection plate are greatly reduced.

Description

Technical Field

[0001] The utility model relates to a kitchen appliance, in particular to a liquid heater. Background Art

[0002] The prior art discloses a capacitive liquid level detection device that detects the liquid level height by using the principle of air touch, such as the sliding capacitive sensing water level and water volume detection device applied to the water tank components of small household appliances such as coffee machines and water dispensers in CN201210323909.1, and the capacitive water level boardless detection device disclosed in CN201410742295.X. The above liquid level detection devices are in the form of a PCB detection board, and the PCB detection board is provided with a capacitor electrode for detecting the water level signal and a TOUCH chip arranged under the capacitor electrode. The TOUCH chip detects the change in the capacitance value of the capacitor electrode when there is water and when there is no water, thereby identifying the current water level height. Although the above scheme can realize air detection of the water level height, it is only limited to accurately detecting the water level height of the static water level. When the liquid level fluctuates violently, such as in the process of boiling water, it is difficult to accurately identify the height of the water level. Moreover, for water or other liquid substances in the form of non-pure liquid, such as bubbles, foam, slurry and other liquid substances, on the one hand, due to the slightly poor conductivity of the above substances, the capacitor electrode senses a small change in capacitance value, and the TOUCH chip cannot distinguish whether it is a liquid level signal or a parasitic capacitance. On the other hand, when the liquid produces bubbles, foam, slurry, especially slurry foam, there will be a thicker slurry layer above the liquid surface. In addition, due to the presence of foam in the slurry layer, the slurry will be blocked from contacting the cup wall, resulting in a distance gap between the slurry and the cup wall, affecting the capacitance value sensed by the capacitor electrode. Moreover, the surface of the slurry layer is not flat. Generally, the slurry in the center area of ​​the cup body is higher, while the slurry in contact with the cup wall is lower, and even the height of the slurry in contact with different positions of the cup wall is different. The capacitor electrode may not be able to sense the specific capacitance value or the sensed capacitance value is small. Therefore, the TOUCH chip cannot identify the specific position of the liquid level, which is prone to overflow safety risks.

[0003] In addition, for the above-mentioned PCB detection board, since the TOUCH chip is located below the capacitor electrode, after the PCB detection board is installed in the glass cup body, a blank space that cannot be detected by the capacitor electrode will be formed in the glass cup body. The liquid must first fill the blank space before the capacitor electrode can be triggered to sense the liquid level height. Therefore, the size of the blank space must be calibrated before the product leaves the factory. On the one hand, it increases the inspection process of finished product manufacturing. On the other hand, the blank space seriously affects the effective production capacity range of the product. When the product is a soymilk machine, the larger the capacity occupied by the blank space, the smaller the capacity range that the soymilk machine can produce. For example, the original pulping range of 300ml to 1200ml can be produced to meet the production needs of 1 to 4 people. Due to the occupation of the blank space, only 600ml to 1200ml of pulp can be produced, which can only meet the production needs of 2 to 4 people. Therefore, the soymilk machine cannot produce 1 serving of beverage. Based on this, since the soymilk machine cannot achieve a more tolerant pulping, the number of people who purchase the soymilk machine will be significantly reduced. Therefore, how to reduce the blank space and achieve a more tolerant liquid level detection is a technical problem that industry R&D personnel need to solve. Utility Model Content

[0004] The purpose to be achieved by the utility model is to provide a liquid heater, which can realize liquid level detection in a wider capacity range and greatly reduce the problems of water ingress failure and detection failure of the detection plate.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid heater, comprising a glass cup body and a detection plate arranged on the outer wall of the glass cup body for detecting the liquid level height in the air, the detection board comprising a detection area provided with a capacitor electrode and a processing area provided with a processing chip, the detection area is located on the side of the detection board facing the glass cup body, and the processing area is located on the other side of the detection board, and the capacitor electrode is electrically connected to the processing chip, characterized in that: it also includes a main control system, the processing area is provided with a wiring terminal electrically connected to the processing chip, the detection board is electrically connected to the main control system through the wiring terminal, and when installed, the detection area is located below the processing area so that the detection board can be installed on the outer wall of the glass cup body.

[0006] Furthermore, the detection area has multiple capacitor electrodes, and the capacitor electrodes include multiple first capacitor electrodes for detecting different water level heights and multiple second capacitor electrodes for detecting different foam heights, wherein the first capacitor electrodes form a water level detection area on the detection area, and the second capacitor electrodes form an anti-overflow detection area on the detection area, and the anti-overflow detection area is located above the water level detection area.

[0007] Furthermore, the first capacitor electrode for detecting different water level heights has corresponding different second capacitor electrodes for detecting overflow prevention signals;

[0008] Alternatively, a dividing groove is provided on the anti-overflow detection area, and the dividing groove divides the anti-overflow detection area into two sub-anti-overflow detection areas arranged side by side, and the single second capacitor electrode is divided by the dividing groove into two sub-electrode plates respectively located in the two sub-overflow detection areas, and the two sub-electrode plates are respectively electrically connected to the processing chip.

[0009] Furthermore, the liquid heater also includes a base installed on the bottom of the glass cup body and a handle fixed to the side wall of the glass cup body, the detection board is hidden and installed between the glass cup body and the handle, the main control system is arranged in the base, and the wiring terminal has a lead-out wire, the wire passes through the inner cavity of the handle from the upper end of the handle, and is led out from the lower end of the handle and extends into the base to be electrically connected to the main control system.

[0010] Furthermore, the outer side of the detection board is wrapped with a silicone sleeve, and the outer side wall of the glass cup body is fixed with a mounting shell, and the mounting shell presses the silicone sleeve and the detection board onto the outer side wall of the glass cup body.

[0011] Furthermore, the silicone sleeve includes a base portion and a cover portion with one end hinged to the base portion and the other end being flippable relative to the base portion, and when the cover portion is covered on the base portion, the detection board is sealed in the accommodating cavity enclosed by the cover portion and the base portion;

[0012] Alternatively, the mounting shell is a handle or an operation panel arranged on the outer side wall of the glass body.

[0013] Furthermore, a mounting bracket is fixed to the outer wall of the glass cup body, the detection board is arranged in the interlayer formed by the glass cup body and the mounting bracket, and a glue filling port connected to the interlayer is provided on the mounting bracket, and glue is poured into the interlayer through the glue filling port to encapsulate the detection board.

[0014] Furthermore, the mounting bracket is provided with a positioning portion, and the detection plate cooperates with the positioning portion to be positioned on the outer side wall of the glass body;

[0015] Alternatively, a mounting seat is fixed to the bottom of the glass body, and the mounting bracket is fixed or integrally formed on the mounting seat.

[0016] Furthermore, a mounting groove is provided on the outer side wall of the glass body, and the detection board is packaged in the mounting groove through a glue potting layer.

[0017] Furthermore, the lower end of the detection area abuts against the lower end wall of the mounting groove, so that the detection plate is positioned on the glass body;

[0018] Alternatively, the mounting groove is formed by the outer wall of the glass body being recessed toward the center of the glass body, and a spoiler protrusion is formed on the inner wall of the glass body.

[0019] In the process of installation, the existing liquid heaters used for remote liquid level detection are all installed with the end on which the processing chip is installed facing downward on the outer wall of the glass cup body. For this installation method, on the one hand, since the capacitor electrode for sensing the liquid level height is located above the processing chip, there must be a reserved space at the bottom of the glass cup body and the liquid level detection cannot be achieved. Moreover, the larger the reserved space is, the more it affects the actual effective pulping capacity range of the liquid heater. At the same time, based on the use environment of the liquid heater, the glass cup body will form water droplets on the outer wall of the glass cup body under the action of cold and hot shocks, and the water droplets will slide down along the outer wall of the glass cup body and gather at the lower end of the detection board, which is easy to cause water ingress to the processing chip end, or, in the process of cleaning the glass cup body, when the cleaning water droplets slide down along the outer wall of the glass cup body and gather at the lower end of the detection board, it is also easy to cause water ingress failure at the processing chip end, causing inaccurate detection and water ingress failure of the detection board.

[0020] Based on this, in order to solve the above technical problems, in the utility model, during installation, the detection area provided with the capacitor electrode is arranged downward, so that the detection area is located below the processing area provided with the processing chip, so that the reserved space can be reduced to a greater extent, or even eliminated. At this time, the liquid level height sensed by the capacitor electrode is the actual liquid level height in the glass cup body, which can not only greatly increase the pulping capacity range of the liquid heater, but also make it impossible to calibrate the reserved space when the product leaves the factory, thereby improving the production efficiency of product manufacturing. At the same time, in the utility model, the processing area is also provided with a wiring terminal, and the wiring terminal is electrically connected to the main control system (through a wire). It is precisely because the processing area is located above the detection area that even if cooling water droplets or cleaning water droplets are generated on the outer wall of the glass cup body, they will not be gathered to the processing area along the outer wall of the glass cup body, causing the wiring terminal or the processing chip in the processing area to fail to enter the water or the detection failure. Therefore, compared with the prior art, the technical solution of the utility model can greatly reduce the problem of water inlet failure of the detection board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the first embodiment of the liquid heater of the utility model;

[0023] Figure 2 for Figure 1 The front structure diagram of the middle detection board;

[0024] Figure 3for Figure 1 Schematic diagram of the reverse structure of the middle detection board;

[0025] Figure 4 for Figure 1 Schematic diagram of the exploded installation structure of the liquid heater;

[0026] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0027] Figure 6 for Figure 5 Schematic diagram of the installation structure of the detection board;

[0028] Figure 7 This is a schematic diagram of the structure of the third embodiment of the present invention. DETAILED DESCRIPTION

[0029] Embodiment 1:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The figure shows a schematic diagram of the structure of a liquid heater of the utility model. The liquid heater is a soymilk machine for making soymilk beverages, comprising a glass cup body 1, a base 2 installed at the bottom of the glass cup body 1, and a handle 3 arranged outside the glass cup body 1, wherein the upper end of the handle 3 is hooked on the edge of the glass cup body 1, and the lower end of the handle 3 is fixed on the base 2. In addition, a main control system 4 is arranged in the base 2, and a detection plate 5 for detecting the liquid level in the air is hidden between the handle 3 and the glass cup body 1.

[0031] Among them, a detection area 51 is set on the side of the detection board 5 facing the glass cup body 1, and a processing area 52 is set on the other side of the detection board 5. When installing, the detection area 51 is set downward so that the detection area 51 is located below the processing area 52, and the detection board 5 is installed. At the same time, a plurality of capacitor electrodes are set on the detection area 51, and a processing chip 7 is set on the processing area 52, and the capacitor electrodes include a plurality of first capacitor electrodes 61 for detecting different water level heights and a plurality of second capacitor electrodes 62 for detecting different foam heights, wherein the first capacitor electrode 61 forms a water level detection area 511 on the detection area 51, and the second capacitor electrode 62 forms an anti-overflow detection area 512 on the detection area 51, and the anti-overflow detection area 512 is located above the water level detection area 511. In this embodiment, the first capacitor electrode 61 for detecting different water level heights has corresponding different second capacitor electrodes 62 for detecting anti-overflow signals. Therefore, for this embodiment, it is possible to realize that different pulping capacities have different first capacitor electrodes 61 for detecting the water level height, and different pulping capacities have corresponding different second capacitor electrodes 62 for detecting the overflow prevention height. Since the overflow prevention detection process is mainly used for the overflow prevention signal detection of bubbles and foams, in order to improve the accuracy of overflow prevention detection, in this embodiment, a dividing groove 513 is set on the overflow prevention detection area 512, and the dividing groove 513 divides the overflow prevention detection area 512 into two sub-overflow detection areas (not marked in the accompanying drawings) arranged side by side, and the single second capacitor electrode 62 is divided by the dividing groove into two sub-electrodes (not marked in the accompanying drawings) respectively located in the two sub-overflow detection areas, and the two sub-electrodes are respectively electrically connected to the processing chip 7. In this embodiment, a terminal block 8 is also provided on the processing area 52. After the detection board 5 is installed on the outer wall of the glass cup body 1, the wire 81 on the terminal block 8 is inserted into the handle cavity 30 from the upper end of the handle 3, and is led out from the lower end of the handle 3 and extends into the base 2 to be electrically connected to the main control system 4, so that the main control system 4 can perform subsequent processing on the data collected by the processing chip 7. For example, when the first capacitor electrode L1 detects the initial pulping water level, the processing chip 7 transmits the acquired signal to the main control system 4, and the main control system 4 controls the crushing motor (not marked in the figure) to perform pulping and crushing and controls the heating tube (not shown in the figure) to heat and boil. When the second capacitor electrode L5 detects the anti-overflow signal corresponding to the pulping capacity of L1, the processing chip 7 transmits the acquired signal to the main control system 4, and the main control system 4 controls the heating tube to stop heating and wait for anti-overflow. Similarly, when the first capacitor electrode L2 detects the initial pulping water level, the main control system 4 controls the crushing and boiling. When the second capacitor electrode L6 detects the corresponding anti-overflow signal, the main control system 4 controls the heating to stop to prevent overflow.

[0032] Meanwhile, in this embodiment, the outer side of the detection board 5 is wrapped with a silicone sleeve 9, and the silicone sleeve 9 includes a base portion 91 and a cover portion 92 hinged at one end to the base portion 91 and flippable relative to the base portion 91 at the other end. When the cover portion 92 covers the base portion 91, the detection board 5 is sealed in the accommodating cavity enclosed by the cover portion 92 and the base portion 91, preventing water droplets from entering the detection board 5 to cause detection misalignment and water ingress failure of the wiring terminal 8. In addition, during the installation process, the detection board 5 and the silicone sleeve 9 can be pre-installed on the handle 3 together, and then the handle 3 is moved to achieve that the handle 3 presses the silicone sleeve 9 and the detection board 5 on the outer wall of the glass cup body 1.

[0033] In the process of installation, the existing liquid heaters used for remote liquid level detection are all installed with the end on which the processing chip is installed facing downward on the outer wall of the glass cup body. For this installation method, on the one hand, since the capacitor electrode for sensing the liquid level height is located above the processing chip, there must be a reserved space at the bottom of the glass cup body and the liquid level detection cannot be achieved. Moreover, the larger the reserved space is, the more it affects the actual effective pulping capacity range of the liquid heater. At the same time, based on the use environment of the liquid heater, the glass cup body will form water droplets on the outer wall of the glass cup body under the action of cold and hot shocks, and the water droplets will slide down along the outer wall of the glass cup body and gather at the lower end of the detection board, which is easy to cause water ingress to the processing chip end, or, in the process of cleaning the glass cup body, when the cleaning water droplets slide down along the outer wall of the glass cup body and gather at the lower end of the detection board, it is also easy to cause water ingress failure at the processing chip end, causing inaccurate detection and water ingress failure of the detection board.

[0034] Based on this, in order to solve the above technical problems, in this embodiment, during installation, the detection area provided with the capacitor electrode is set downward, so that the detection area is located below the processing area where the processing chip is installed, so that the reserved space can be reduced to a greater extent, or even eliminated. At this time, the liquid level height sensed by the capacitor electrode is the actual liquid level height in the glass cup body, which can not only greatly increase the pulping capacity range of the liquid heater, but also make it impossible to calibrate the reserved space when the product leaves the factory, thereby improving the production efficiency of product manufacturing. At the same time, in this embodiment, the processing area is also provided with a wiring terminal, and the wiring terminal is electrically connected to the main control system (through a wire). It is precisely because the processing area is located above the detection area that even if cooling water droplets or cleaning water droplets are generated on the outer wall of the glass cup body, they will not be gathered to the processing area along the outer wall of the glass cup body, causing the wiring terminal or the processing chip in the processing area to fail to enter the water or the detection failure. Therefore, compared with the prior art, the technical solution of this embodiment can greatly reduce the problem of water inlet failure of the detection board.

[0035] It should be noted that, for this embodiment, the anti-overflow detection area may not be provided with a dividing groove to divide the second capacitor electrode. Since the detection height of the second capacitor electrode is significantly greater than that of the first capacitor electrode, a larger capacitance value can be obtained in the process of detecting bubbles and foams, thereby distinguishing the anti-overflow signal from the parasitic capacitance. At the same time, for this embodiment, the detection plate is not limited to the handle and can also be other installation shells. For example, an operation panel is provided on the outside of the glass cup body, and the detection plate is pressed onto the outer wall of the glass cup body through the operation panel. In addition, in order to prevent the detection board from detecting the parasitic capacitance due to the hand accidentally touching the handle during the pulping process, a shielding grid layer (not marked in the figure) can also be provided on the back of the detection board, that is, on one side of the processing area to shield the external parasitic capacitance. At this time, the shielding layer is provided below the processing area.

[0036] It should also be noted that the above structural changes to this embodiment may also be applicable to other embodiments of the present utility model.

[0037] Embodiment 2:

[0038] like Figure 5 , Figure 6 The figure shows a schematic diagram of the structure of the second embodiment of the utility model. The liquid heater of this embodiment is a health-preserving kettle, which includes a glass cup body 1 and a handle 3 installed on the outer wall of the glass cup body 1, and a detection board 5 and a mounting bracket a for positioning the detection board 5 are also provided between the glass cup body 1 and the handle 3. The detection board 5 is arranged in the interlayer (not marked in the figure) formed by the glass cup body 1 and the mounting bracket a, and the mounting bracket a is provided with a glue filling port a0 connected to the interlayer, and glue is poured into the interlayer through the glue filling port a0 to encapsulate the detection board 5. In addition, after the fluid glue solidifies, the handle 3 is covered on the outside of the mounting bracket a to hide the mounting bracket a and the detection board 5.

[0039] It should be noted that, in this embodiment, the detection plate is also installed with the detection area facing downward. This embodiment has the same beneficial effects as the first embodiment, which will not be repeated here. It should be further noted that the mounting bracket in this embodiment is not limited to the structure disclosed in this embodiment. For example, when a mounting seat is fixed to the bottom of the glass cup body by threads, the mounting bracket can be first fixed to the mounting seat or integrally formed on the mounting seat, and then the mounting bracket is filled with glue to encapsulate the detection board. Since the mounting seat is fixed relative to the glass cup body, the mounting seat and the glass cup body have a fixed mounting relationship, and the detection plate is positioned based on the mounting seat, the detection plate can be positioned more accurately on the outer wall of the glass cup body to prevent the liquid level detection value from having a significant deviation from the actual value. Of course, while ensuring that the mounting bracket is well positioned relative to the glass cup body, a positioning structure or a positioning portion can also be provided on the mounting bracket to position the detection plate to prevent the detection plate from being inaccurately positioned relative to the mounting bracket when the mounting bracket and the glass cup body are accurately positioned.

[0040] Likewise, it should be noted that the above structural changes to this embodiment may also be applicable to other embodiments of the present utility model.

[0041] Embodiment three:

[0042] like Figure 7 The figure shows the structure diagram of the third embodiment of the utility model. Different from other embodiments, the glass cup body 1 of this embodiment is formed by die-casting, so that the wall thickness of the glass cup body 1 is relatively thick. At the same time, during the molding process of the glass cup body 1, an installation groove 10 is integrally die-cast on the outer wall of the glass cup body 1. After the detection board 5 is installed in the installation groove 10, the detection board 5 is filled with glue to form a glue layer on the detection board 5, and the detection board 5 is encapsulated in the installation groove 10. In this way, the installation of the detection board 5 is more convenient, and the positioning relative to the glass cup body 1 is more accurate. The detection board 5 can be directly positioned on the glass cup body 1 without the help of other components.

[0043] Of course, during the installation process, the detection area is also set downward, and the lower end of the detection area abuts against the lower end wall of the installation groove, so that the detection plate is positioned on the glass cup body. At the same time, for this embodiment, the installation groove can be formed by setting ribs on the outer wall of the glass cup body, and the installation groove is surrounded by the ribs, or it can be formed by the outer wall of the glass cup body being concave toward the center of the glass cup body. Moreover, when the concave is formed, the inner wall of the glass cup body can also form a spoiler protrusion to enhance the spoiler crushing effect during the pulping process.

[0044] Likewise, the above structural changes of this embodiment can also be applied to other embodiments of the utility model.

[0045] In addition, it should be noted that the liquid heater of the utility model is not limited to the motor-under-mounted food processor or soybean milk machine disclosed in the embodiment of the utility model, but can also be a food processor that does not need to be washed by hand, a motor-over-mounted soybean milk machine, and a wall-breaking machine with a cup body and a base separated. Moreover, the liquid heater of the utility model can also be applied to heating appliances that can perform pulp boiling operations, rice paste making, etc., such as health pots, health pots, water pots, water dispensers, etc.

[0046] Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A liquid heater, comprising a glass cup body and a detection plate arranged on the outer side wall of the glass cup body for detecting the liquid level in the air, the detection plate comprising a detection area provided with a capacitor electrode and a processing area provided with a processing chip, the detection area is located on one side of the detection plate facing the glass cup body, and the processing area is located on the other side of the detection plate, and the capacitor electrode is electrically connected to the processing chip, characterized in that: It also includes a main control system. The processing area is provided with wiring terminals electrically connected to the processing chip. The detection board is electrically connected to the main control system through the wiring terminals. During installation, the detection area is located below the processing area so that the detection board can be installed on the outer wall of the glass cup body.

2. The liquid heater according to claim 1, characterized in that: The detection area has multiple capacitor electrodes, and the capacitor electrodes include multiple first capacitor electrodes for detecting different water level heights and multiple second capacitor electrodes for detecting different foam heights, wherein the first capacitor electrodes form a water level detection area on the detection area, and the second capacitor electrodes form an anti-overflow detection area on the detection area, and the anti-overflow detection area is located above the water level detection area.

3. The liquid heater according to claim 2, characterized in that: The first capacitor electrode for detecting different water level heights has corresponding different second capacitor electrodes for detecting overflow prevention signals; Alternatively, a dividing groove is provided on the anti-overflow detection area, and the dividing groove divides the anti-overflow detection area into two sub-anti-overflow detection areas arranged side by side, and the single second capacitor electrode is divided by the dividing groove into two sub-electrode plates respectively located in the two sub-overflow detection areas, and the two sub-electrode plates are respectively electrically connected to the processing chip.

4. The liquid heater according to claim 1, characterized in that: The liquid heater also includes a base installed on the bottom of the glass cup body and a handle fixed to the side wall of the glass cup body. The detection board is hidden and installed between the glass cup body and the handle. The main control system is arranged in the base. The wiring terminal has a lead-out wire. The lead is inserted into the inner cavity of the handle from the upper end of the handle, and is led out from the lower end of the handle and extends into the base to be electrically connected to the main control system.

5. The liquid heater according to claim 1, characterized in that: The outer side of the detection board is wrapped with a silicone sleeve, and the outer side wall of the glass cup body is fixed with a mounting shell, and the mounting shell presses the silicone sleeve and the detection board onto the outer side wall of the glass cup body.

6. The liquid heater according to claim 5, characterized in that: The silicone sleeve comprises a base part and a covering part with one end hinged to the base part and the other end being flippable relative to the base part. When the covering part is covered on the base part, the detection board is sealed in the accommodating cavity enclosed by the covering part and the base part. Alternatively, the mounting shell is a handle or an operation panel arranged on the outer side wall of the glass body.

7. The liquid heater according to claim 1, characterized in that: A mounting bracket is fixed to the outer wall of the glass body, the detection board is arranged in the interlayer formed by the glass body and the mounting bracket, and a glue filling port connected to the interlayer is arranged on the mounting bracket, and glue is poured into the interlayer through the glue filling port to encapsulate the detection board.

8. The liquid heater according to claim 7, characterized in that: The mounting bracket is provided with a positioning portion, and the detection plate cooperates with the positioning portion to be positioned on the outer wall of the glass body; Alternatively, a mounting seat is fixed to the bottom of the glass body, and the mounting bracket is fixed or integrally formed on the mounting seat.

9. The liquid heater according to claim 1, characterized in that: The outer side wall of the glass body is provided with a mounting groove, and the detection board is packaged in the mounting groove through a glue potting layer.

10. The liquid heater according to claim 9, characterized in that: The lower end of the detection area abuts against the lower end wall of the mounting groove, so that the detection plate is positioned on the glass body; Alternatively, the mounting groove is formed by the outer wall of the glass body being recessed toward the center of the glass body, and a spoiler protrusion is formed on the inner wall of the glass body.

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