Liquid heater reliable in detection

Abstract

The utility model belongs to the technical field of household appliances, and discloses a liquid heater reliable in detection, which further comprises a detection plate used for detecting the liquid level in a glass cup body and a detection element matched with a magnet to detect whether a cup cover is in place or not, and an installation piece is fixedly arranged on the outer side of the glass cup body. The detection plate is fixed on the outer side wall of the glass cup body and shielded by the mounting part, the detection element is fixed on the mounting part, the detection plate is provided with a first interface and a second interface, the first interface is connected with the detection element, and the second interface is connected with the control device. The detection plate is provided with a first interface and a second interface, so that a cover closing signal detected by the detection element can be transmitted through the first interface and then transmitted to the control device through the second interface, the second interface compatibly outputs the cover closing signal and a liquid level signal, and the structure and function integration of the detection plate is realized; an interface can be integrated on a main control board in the control device to input a cover closing signal and a liquid level signal, and the whole wire harness is simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and in particular relates to a liquid heater with reliable detection. Background Art

[0002] Existing liquid heating devices can usually realize remote liquid level detection. For example, the patent application with application number 201720526032.4 discloses a food processor with good anti-overflow effect, including a base with a built-in motor and a mixing cup arranged above the base. The mixing cup includes a glass cup with a handle and a water level detection structure arranged on the outer side of the glass cup. The water level detection structure includes a detection component fitted on the outer wall of the glass cup and a capacitive sensing board connected to the detection component. The sensing board is generally provided with a processing chip, which collects liquid level signals and is connected to the main control board of the food processor to realize remote liquid level detection and related control, which is convenient for cleaning and has a high degree of intelligence.

[0003] Since a blending blade is arranged in the blending cup of a food processor and a cup cover is arranged on the top of the blending cup, in order to prevent the blending blade from starting to work before the cup cover is properly installed, a cup cover detection structure is usually provided in the food processor to identify whether the cup cover is properly installed. The existing detection method is basically implemented by a switch device, such as a Hall switch and a magnet in combination with the detection method.

[0004] However, the existing capacitive sensing board only transmits and processes the liquid level signal, with a low degree of integration and a single function. The existing main control board must be provided with an interface for connecting to the cup cover detection switch and an interface for connecting to the sensing board, and a separate processing chip for processing the detection switch signal is provided on the main control board. The low degree of integration results in a complex structure of the main control board, numerous connecting harnesses, and a long single harness, which is costly and easy to get tangled between harnesses, affecting detection. Utility Model Content

[0005] The utility model provides a liquid heater with reliable detection, which solves the technical problem of single function caused by low integration of detection boards in the prior art. The detection board not only realizes the function of remote liquid level detection but also is compatible with the transmission of cover closing signals, thereby realizing the functional diversification of the detection board.

[0006] The technical solution adopted by the utility model is:

[0007] The utility model provides a liquid heater with reliable detection, comprising a glass cup body, a cup cover, a heating element and a control device, the cup cover is provided with a magnet, the liquid heater also comprises a detection plate for detecting the liquid level in the glass cup body and a detection element cooperating with the magnet to detect whether the cup cover is in place, a mounting piece is fixedly arranged on the outer side of the glass cup body, the detection plate is fixed on the outer side wall of the glass cup body and is shielded by the mounting piece, the detection element is fixed to the mounting piece, the detection plate is provided with a first interface and a second interface, the first interface is connected to the detection element, and the second interface is connected to the control device.

[0008] The liquid heater provided by the utility model realizes liquid level detection in a glass cup body, such as overflow detection or water level detection, by setting a detection plate and a detection element. The detection is reliable and avoids the inconvenience of cleaning caused by contact with slurry, which is convenient for users. The detection element realizes lid closing detection to ensure that the machine works normally after the cup lid is closed, thereby improving the safety of use. By setting a mounting part, the mounting part is used to shield the detection plate and realize reliable installation of the detection element at the same time. It has multiple uses and a simple structure. At the same time, the mounting part adds a protective barrier to the detection plate to prevent the detection plate and the detection element from being disturbed by the outside world, thereby ensuring the accuracy of the detection. The detection board is provided with a first interface and a second interface, the first interface is connected to the detection element, and the second interface is connected to the control device, so that the cover closing signal detected by the detection element can be transmitted through the first interface, and then transmitted to the control device through the second interface, and the second interface is compatible with the output of the cover closing signal and the liquid level signal. Therefore, the detection board not only realizes the remote liquid level detection function but also is compatible with the transmission of the cover closing signal. It has diverse functions and improves the integration of the detection board. Correspondingly, an interface can be integrated on the main control board in the control device to input the cover closing signal and the liquid level signal, thereby simplifying the structure of the main control board, simplifying the overall wiring harness, avoiding long wiring harnesses, reducing the risks of wiring harness entanglement and detection interference, and improving the accuracy of detection.

[0009] In a preferred embodiment, the front side of the detection board faces the glass cup body and is provided with a capacitor electrode, a processing chip is provided on the back side of the detection board, the processing chip is connected to the capacitor electrode, the first interface is connected to the processing chip, and the control device includes a main control board connected to the second interface.

[0010] By arranging a capacitor electrode on the front side of the detection board, the capacitance of the capacitor electrode changes with the volume of the liquid in the glass cup body, thereby realizing remote liquid level detection without contacting the liquid. The control device includes a processing chip, and the processing chip is installed on the back side of the detection board and connected to the capacitor electrode. At the same time, it is conducive to reliably fitting and pressing the front side of the detection board and the glass cup body to ensure detection sensitivity. The first interface is connected to the processing chip, so that the processing chip is compatible with processing the cover closing signal and the capacitance signal of the capacitor electrode, and the second interface is compatible with transmitting the temperature signal and the capacitance signal of the capacitor electrode. The detection board has high functional integration, the overall structure of the control device is simple, and the detection and control are reliable.

[0011] In a preferred embodiment, the detection board has a detection area for mounting a capacitor electrode and a processing area for setting a first interface, and the processing area is located above the detection area.

[0012] Since the detection element needs to be reliably matched with the magnet, it is usually necessary to set the detection element close to the cup cover and the cup mouth. Therefore, the processing area and the detection area are set by the detection board, and the processing area is set above the detection area. The first interface is located in the processing area, so that the distance between the first interface and the detection element is shortened, thereby shortening the length of the wiring harness, further saving the wiring harness layout, avoiding the entanglement of the wiring harness and affecting the detection, and ensuring reliable detection.

[0013] In a preferred embodiment, a terminal seat is provided on the detection board, the first interface is provided on the terminal seat, and the detection element is provided with a plug connector that is plugged and matched with the first interface.

[0014] By setting the first interface on the terminal seat, the terminal seat is used to protect the first interface, and the flexible plug-in between the plug connector of the detection element and the first interface is used to achieve a reliable electrical connection between the first interface and the detection element, the assembly is flexible and convenient, and it is easy to assemble and disassemble.

[0015] In a preferred embodiment, the first interface is a welding point, and the lead wire of the detection element is welded to the welding point.

[0016] By setting the first interface as a welding point, the overall structure of the detection board is further simplified, the volume of the detection board is reduced, and the installation space is saved. The lead wire of the detection element is welded to the welding point to achieve a reliable electrical connection.

[0017] In a preferred embodiment, the detection plate is pressed against the outer side wall of the glass body through the mounting member;

[0018] The detection board is pressed by the mounting parts, and the mounting parts fix the detection board while fixing the detection element. There is no need to set up other structures to fix the detection board, which simplifies the structure of the whole machine and ensures reliable positioning. During assembly, the detection board, detection element and mounting parts can be fixed in place in one step, and the assembly efficiency is high.

[0019] In a preferred embodiment, a positioning groove is provided on the outer side wall of the glass body, and the detection board is encapsulated in the positioning groove through a glue potting layer to form an integral body with the glass body.

[0020] By setting a positioning groove, the groove wall of the positioning groove limits the detection plate, and the detection plate is prevented from sliding and shifting during and after the installation of the detection plate. The detection plate is easy and reliably positioned, further ensuring the accurate installation position of the detection plate, improving the fit between the detection plate and the glass cup body, and thus helping to reduce the spacing distance of the detection plate and improve detection accuracy. After the detection plate and the bottom wall of the positioning groove are tightly fitted, the flowing colloid is filled into the outer side of the detection plate and the positioning groove to seal the detection plate, so that the outer side of the detection plate is encapsulated in the positioning groove through the glue filling layer to form a whole with the glass cup body, and the fixation between the detection plate and the glass cup body is in place in one step, eliminating the cumbersome assembly steps and assembly errors caused by indirect fixation by the handle, greatly simplifying the assembly method, and using the glue filling layer to fix the detection plate while achieving effective sealing of the detection plate, ensuring that the detection plate and the glass cup body are in close contact, effectively sealing the gap between the detection plate and the positioning groove, preventing water vapor from entering, and ensuring reliable sealing; the mounting piece adds a protective barrier to the detection plate to prevent the detection plate from being disturbed by the outside world, ensuring the accuracy of the detection, extending the service life of the detection plate, and improving the waterproof and dustproof effect of the detection plate. At the same time, it will not affect the accurate positioning of the detection plate, and the overall structure is reliable.

[0021] In a preferred embodiment, the mounting member is a handle;

[0022] Alternatively, the mounting member is a shell sleeved on the outside of the glass body;

[0023] Alternatively, the mounting member is a shell fixed to one side of the glass body.

[0024] The mounting piece adopts a handle or a shell, which can not only shield the detection plate and fix the detection element, but also make it convenient for users to take it and avoid burns. It is convenient to use and has strong practicality. If the mounting piece adopts a shell, there can be enough installation space between the mounting piece and the glass cup body, which is convenient for fixing the detection plate and the detection element and realizes reliable installation of the detection plate and the detection element.

[0025] In a preferred embodiment, the detection board is provided with a first terminal seat and a second terminal seat which are arranged in parallel, and the first interface and the second interface are respectively arranged at the first terminal seat and the second terminal seat.

[0026] By arranging the first interface and the second interface horizontally side by side on the detection board through the first terminal seat and the second terminal seat, the first interface and the second interface are independent and compactly arranged, which effectively avoids interference between different signals during transmission. The overall structure of the detection board is compact. In the process of fixing and installing the detection board, it is easier to limit and avoid the wiring harness, which facilitates the overall assembly.

[0027] In a preferred embodiment, the detection board is provided with a third terminal seat, and the first interface and the second interface are both provided at the third terminal seat.

[0028] By setting a third terminal seat on the detection board, the first interface and the second interface are both set on the same third terminal seat, so that the first interface and the second interface can be further arranged in a compact manner, saving the number of terminal seats, saving the space occupied by the detection board, reducing the volume of the detection board, and facilitating the fixing and installation of the detection board.

[0029] In a preferred embodiment, the second interface includes an input terminal and an output terminal arranged on the same terminal seat.

[0030] By setting the second interface as an input interface and an output interface, serial port two-line communication is achieved, so that the signal transmission speed and reliability between the detection board and the control device are improved.

[0031] In a preferred embodiment, the liquid heater further includes a temperature measuring element, and the detection board is further provided with a third interface, and the third interface is connected to the temperature measuring element.

[0032] By setting temperature measuring elements, such as temperature sensors and thermal protection elements (fuse or thermostat), the temperature sensor is used to detect the temperature of the liquid in the glass cup, so as to fully boil the liquid and improve the taste of beverages such as soy milk. At the same time, the detection board is provided with a third interface. Therefore, the detection board not only integrates the lid closing signal and the liquid level signal, but also integrates the transmission or processing of the temperature signal, which further improves the integration and intelligence of the detection board and further simplifies the overall control device structure and wiring harness layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0034] Figure 1 A schematic cross-sectional structure diagram of a liquid heater provided in Example 1 of the present utility model;

[0035] Figure 2 An exploded schematic diagram of a local structure of a liquid heater provided in Example 1 of the utility model;

[0036] Figure 3 A schematic diagram of the back structure of the detection board provided in Example 1 of the present utility model;

[0037] Figure 4 A schematic diagram of the front structure of the detection board provided in Example 1 of the present utility model;

[0038] Figure 5 This is a schematic structural diagram of a liquid heater provided in Example 5 of the present utility model.

[0039] Explanation of the reference numerals: 10, glass cup body; 11, crushing knife; 20, cup cover; 30, heating element; 21, magnet; 40, motor; 50, detection element; 60, mounting piece; 61, lug; 62, screw; 70, detection board; 71, first interface; 72, second interface; 73, processing chip; 74, capacitor electrode; 80, host; 81, installation cavity; 90, silicone piece. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0042] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0045] like Figure 1-4 As shown, the utility model provides a liquid heater with reliable detection in implementation example 1, including a glass cup body 10, a cup cover 20, a heating element 30 and a control device, the cup cover 20 is provided with a magnet 21, the liquid heater also includes a detection plate 70 for detecting the liquid level in the glass cup body 10 and a detection element 50 cooperating with the magnet 21 to detect whether the cup cover 20 is in place, a mounting member 60 is fixedly arranged on the outer side of the glass cup body 10, the detection plate 70 is fixed to the outer side wall of the glass cup body 10 and is shielded by the mounting member 60, the detection element 50 is fixed to the mounting member 60, the detection plate 70 is provided with a first interface 71 and a second interface 72, the first interface 71 is connected to the detection element 50, and the second interface 72 is connected to the control device.

[0046] Optionally, the detection element 50 is a Hall switch or a reed switch.

[0047] The present invention does not limit the form of the liquid heater. For example, in Example 1, the liquid heater is a food processor with a motor placed below, and also includes a host fixed below the glass cup body 10. The host is provided with a motor 40 and a control device. The control device includes a main control board connected to the motor. The motor shaft extends into the glass cup body 10 and is connected to a crushing knife 11. Of course, the liquid heater can also be a food processor with a detachable host and glass cup body 10, or the liquid heater can be a health pot or a water boiler.

[0048] The liquid heater provided by the utility model realizes liquid level detection in the glass cup body 10, such as overflow detection or water level detection, by setting a detection plate 70 and a detection element 50. The detection is reliable and avoids the inconvenience of cleaning caused by contact with slurry, which is convenient for users. The detection element 50 realizes lid closing detection to ensure that the machine works normally after the cup lid 20 is closed in place, thereby improving the safety of use. By setting a mounting member 60, the mounting member 60 is used to shield the detection plate 70 and realize the reliable installation of the detection element 50 at the same time. It has multiple uses and a simple structure. At the same time, the mounting member 60 adds a protective barrier to the detection plate 70 to prevent the detection plate 70 and the detection element 50 from being disturbed by the outside world, thereby ensuring the accuracy of the detection. The detection board 70 is provided with a first interface 71 and a second interface 72. The first interface 71 is connected to the detection element 50, and the second interface 72 is connected to the control device, so that the closing signal detected by the detection element 50 can be transmitted through the first interface 71, and then transmitted to the control device through the second interface 72. The second interface 72 is compatible with the output of the closing signal and the liquid level signal, thereby realizing the structural and functional integration of the detection board 70. Correspondingly, an interface can be integrated on the main control board in the control device to input the closing signal and the liquid level signal, thereby simplifying the structure of the main control board, simplifying the overall wiring harness, avoiding long wiring harnesses, reducing wiring harness entanglement and detection interference, and improving detection accuracy.

[0049] The present invention does not limit the fixing method between the detection element and the mounting member. For example, a fixing groove is provided on the mounting member, and the detection element is fixed in the fixing groove by means of snaps, bonding, screws, etc.

[0050] Preferably, in implementation example 1, Figure 2 , 3 As shown in , 4 , the front side of the detection board 70 faces the glass cup body 10 and is provided with a capacitor electrode 74 , and a processing chip 73 is provided on the back side of the detection board 70 , the processing chip 73 is connected to the capacitor electrode 74 , the first interface 71 is connected to the processing chip 73 , and the control device includes a main control board connected to the second interface 72 .

[0051] By setting a capacitor electrode 74 on the front of the detection board 70, the capacitance of the capacitor electrode 74 changes with the volume of the liquid in the glass cup body 10, and the remote liquid level detection is realized without the need for contact with the liquid. The control device includes a processing chip 73, and the processing chip 73 is installed on the back of the detection board 70 and connected to the capacitor electrode 74. At the same time, it is beneficial to reliably fit and press the front of the detection board 70 to the glass cup body 10 to ensure the detection sensitivity. The first interface 71 is connected to the processing chip 73, so that the processing chip 73 is compatible with processing the cover closing signal and the capacitance signal of the capacitor electrode 74, and the second interface 72 is compatible with transmitting the temperature signal and the capacitance signal of the capacitor electrode 74. The detection board 70 has high functional integration, the overall structure of the control device is simple, and the detection and control are reliable.

[0052] Of course, as another preferred implementation example of the utility model, the control device includes a main control board, which is arranged in the host. A processing chip 73 is arranged on the main control board, and a capacitor electrode 74 is arranged on the detection board 70. The main control board is connected to the second interface 72 so that the capacitor electrode 74 is connected to the processing chip 73. In this way, the detection board 70 is only used for compatible transmission of the cover closing signal and the liquid level signal, which simplifies the structure of the detection board 70, helps to reduce the volume of the detection board 70, and facilitates assembly.

[0053] Preferably, in implementation example 1, the detection board 70 has a detection area for installing the capacitor electrode 74 and a processing area for setting the first interface 71, and the processing area is located above the detection area.

[0054] Since the detection element 50 is to be reliably matched with the magnet 21, it is usually necessary to set the detection element 50 close to the cup cover 20 and the cup mouth. Therefore, the processing area and the detection area are set by the detection board 70, and the processing area is set above the detection area. The first interface 71 is located in the processing area, so that the distance between the first interface 71 and the detection element 50 is shortened, thereby shortening the length of the wiring harness, further saving the wiring harness layout, avoiding the entanglement of the wiring harness and affecting the detection, and ensuring reliable detection.

[0055] like Figure 4 As shown, the capacitor electrode 74 may be a water level capacitor electrode 741 or an anti-overflow capacitor electrode 742. For example, the detection area includes an anti-overflow detection area and a water level detection area, the front of the detection plate 70 is provided with a water level detection area and an anti-overflow detection area located above the water level detection area, and the capacitor electrode 74 includes a plurality of water level capacitor electrodes 741 located in the water level detection area and a plurality of anti-overflow capacitor electrodes 742 located in the anti-overflow detection area.

[0056] Preferably, in implementation example 1, a terminal seat is provided on the detection board 70 , the first interface 71 is provided at the first terminal seat, and the detection element 50 is provided with a plug connector that is plugged and matched with the first interface 71 .

[0057] By setting the first interface 71 on the terminal seat, using the terminal seat to protect the first interface 71, and using the flexible plug-in between the plug connector of the detection element 50 and the first interface 71, a reliable electrical connection between the first interface 71 and the detection element 50 is achieved, and the assembly is flexible and convenient, and it is easy to assemble and disassemble. By arranging the first interface 71 and the second interface 72 horizontally and side by side on the detection board 70 through the first terminal seat and the second terminal seat, the first interface 71 and the second interface 72 are independent and compactly arranged, effectively avoiding interference between different signals during transmission, and the overall structure of the detection board 70 is compact. In the process of fixing and installing the detection board 70, it is easier to limit and avoid the wiring harness, which is convenient for overall assembly.

[0058] Preferably, in implementation example 1, the second interface 72 is provided at the second terminal seat, and the first terminal seat and the second terminal seat are arranged side by side in the processing area.

[0059] The present invention does not limit the interface structure and arrangement of the detection board 70. The structures of the first interface 71 and the second interface 72 may be the same or different. For example:

[0060] In implementation example 2, the first interface 71 is a soldering point, and the lead of the detection element 50 is soldered to the soldering point. By setting the first interface 71 as a soldering point, the overall structure of the detection board 70 is further simplified, the volume of the detection board 70 is reduced, and the installation space is saved. The lead of the detection element 50 is soldered to the soldering point to achieve a reliable electrical connection.

[0061] In this implementation example, optionally, the second interface 72 is a welding point or the second interface 72 is provided on the terminal seat.

[0062] In implementation example 3, the detection board 70 is provided with a third terminal seat, and the first interface 71 and the second interface 72 are both provided at the third terminal seat.

[0063] By setting a third terminal seat on the detection board 70, the first interface 71 and the second interface 72 are both set on the same third terminal seat, so that the first interface 71 and the second interface 72 can be further compactly arranged, saving the number of terminal seats, saving the space occupied by the detection board 70, reducing the volume of the detection board 70, and facilitating the fixing and installation of the detection board 70.

[0064] In implementation example 4, the second interface 72 includes an input terminal and an output terminal disposed on the same terminal base.

[0065] By setting the second interface 72 as an input interface and an output interface, serial port two-wire communication is realized, so that the signal transmission speed and reliability between the detection board 70 and the control device are improved.

[0066] In this implementation example, serial communication is used between the second interface 72 and the main control board. In fact, single-line communication may also be used.

[0067] The present invention does not limit the installation method of the detection board 70. For example, in Example 1, preferably, the detection board 70 is pressed against the outer wall of the glass body 10 through the mounting member 60. More preferably, a silicone member 90 is sandwiched between the mounting member and the glass body, and the detection board 70 is sandwiched in the silicone member, so that the detection board is flexibly pressed against the outer wall of the glass body.

[0068] like Figure 1 , Figure 2As shown, preferably, the mounting member 60 is a handle, which is fixedly connected to the glass body 10 by screws 62. After the handle is fixed, the detection plate 70 is pressed against the outer wall of the glass body 10 to achieve one-step installation.

[0069] The detection board 70 is pressed by the mounting member 60. The mounting member 60 fixes the detection board 70 while fixing the detection element 50. There is no need to set up other structures to fix the detection board 70, which simplifies the structure of the whole machine and ensures reliable positioning. During assembly, the detection board 70, the detection element 50 and the mounting member 60 can be fixed in place in one step, and the assembly efficiency is high.

[0070] In fact, the mounting member 60 in this embodiment can also be selected as a shell that is mounted on the outside of the glass cup body 10; or, the mounting member 60 is a shell that is fixed to one side of the glass cup body 10.

[0071] In Example 5, a positioning groove is provided on the outer wall of the glass body 10, and the detection plate 70 is encapsulated in the positioning groove by a glue layer to form an integral body with the glass body 10, and the mounting member 60 covers the outer side of the detection plate 70. Figure 5 As shown, in this embodiment, the mounting member 60 is a shell. More preferably, two shells are symmetrically arranged and a lug 61 is formed on the top of the shell to facilitate the user to take it. In this embodiment, the liquid heater also includes a host 80 having a mounting cavity 81, and the glass cup body is detachably mounted in the mounting cavity 81.

[0072] In fact, the mounting member 60 in this embodiment can also be replaced by a shell that is sleeved on the outside of the glass body 10; or, the mounting member 60 is a handle.

[0073] By setting a positioning groove, the groove wall of the positioning groove limits the detection plate 70, and the detection plate 70 is prevented from sliding and shifting during the installation process and after the installation. The detection plate 70 is easy to position and the positioning is reliable, which further ensures the accuracy of the installation position of the detection plate 70, improves the fitting effect of the detection plate 70 and the glass cup body 10, and then helps to reduce the spacing distance of the detection plate 70 and improve the detection accuracy. After the detection plate 70 and the bottom wall of the positioning groove are tightly fitted, the flowing colloid is filled into the outer side of the detection plate 70 and the positioning groove to seal the detection plate 70, so that the outer side of the detection plate 70 is encapsulated in the positioning groove through the glue filling layer to form a whole with the glass cup body 10, and the fixation between the detection plate 70 and the glass cup body 10 is completed in one step, eliminating the cumbersome assembly steps and assembly errors caused by indirect fixation by the handle, greatly simplifying the assembly method, and using the glue filling layer to fix the detection plate 70 while achieving effective sealing of the detection plate 70, ensuring that the detection plate 70 and the glass cup body 10 are tightly fitted, effectively sealing the gap between the detection plate 70 and the positioning groove, preventing water vapor from entering, and ensuring reliable sealing; the mounting member 60 adds a protective barrier to the detection plate 70 to prevent the detection plate 70 from being disturbed by the outside world, ensuring the accuracy of the detection, extending the service life of the detection plate 70, and improving the waterproof and dustproof effect of the detection plate 70, while it will not affect the accurate positioning of the detection plate 70, and the overall structure is reliable.

[0074] In the utility model, the mounting member 60 adopts a handle or a shell, which can not only shield the detection plate 70 and fix the detection element 50, but also facilitate the user to take it, avoid scalding, and use it conveniently, and is highly practical. If the mounting member 60 adopts a shell, there can be enough installation space between the mounting member 60 and the glass cup body 10, which is convenient for fixing the detection plate 70 and the detection element 50 and realizing the reliable installation of the detection plate 70 and the detection element 50.

[0075] In a preferred embodiment, the liquid heater further includes a temperature measuring element, and the detection board 70 is further provided with a third interface, which is connected to the temperature measuring element.

[0076] By setting a temperature measuring element, the temperature measuring element can be selected as one or more of a temperature sensor, a thermal protection element (a fuse or a thermostat). If a temperature sensor is used, the temperature of the liquid in the glass cup body 10 is detected by the temperature sensor to achieve sufficient boiling of the liquid and improve the taste of beverages such as soy milk. At the same time, the detection board 70 is provided with a third interface. Therefore, the detection board 70 not only integrates the lid closing signal and the liquid level signal, but also integrates the transmission or processing of the temperature signal, which further enhances the integration and intelligence of the detection board 70 and further simplifies the overall control device structure and wiring harness layout.

[0077] It is understandable that the third interface can be selected as a welding point, and the lead of the temperature measuring element is directly welded and fixed to the welding point; or, the third interface is arranged on the terminal seat, and the temperature measuring element includes a plug connector that is plugged into the third interface.

[0078] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0079] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0080] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A liquid heater with reliable detection, comprising a glass cup body, a cup cover, a heating element and a control device, wherein the cup cover is provided with a magnet, characterized in that: The liquid heater also includes a detection plate for detecting the liquid level in the glass cup body and a detection element that cooperates with the magnet to detect whether the cup cover is in place. A mounting piece is fixedly arranged on the outside of the glass cup body, the detection plate is fixed to the outer wall of the glass cup body and is shielded by the mounting piece, the detection element is fixed to the mounting piece, and the detection plate is provided with a first interface and a second interface, the first interface is connected to the detection element, and the second interface is connected to the control device.

2. A liquid heater with reliable detection according to claim 1, characterized in that: The front of the detection board faces the glass cup body and is provided with a capacitor electrode. The back of the detection board is provided with a processing chip, the processing chip is connected to the capacitor electrode, the first interface is connected to the processing chip, and the control device includes a main control board connected to the second interface.

3. A liquid heater with reliable detection according to claim 1, characterized in that: The detection board comprises a detection area for mounting a capacitor electrode and a processing area for setting a first interface, wherein the processing area is located above the detection area.

4. The liquid heater with reliable detection according to claim 1, characterized in that: The detection board is provided with a terminal seat, the first interface is provided on the terminal seat, and the detection element is provided with a plug connector that is plugged and matched with the first interface; Alternatively, the first interface is a welding point, and the lead of the detection element is welded to the welding point.

5. The liquid heater with reliable detection according to claim 1, characterized in that: The detection plate is pressed against the outer side wall of the glass body through the mounting member; Alternatively, a positioning groove is provided on the outer side wall of the glass body, and the detection board is encapsulated in the positioning groove through a glue potting layer to form a whole with the glass body.

6. The liquid heater with reliable detection according to claim 1, characterized in that: The mounting piece is a handle; Alternatively, the mounting member is a shell sleeved on the outside of the glass body; Alternatively, the mounting member is a shell fixed to one side of the glass body.

7. The liquid heater with reliable detection according to claim 1, characterized in that: The detection board is provided with a first terminal seat and a second terminal seat which are arranged in parallel, and the first interface and the second interface are respectively arranged at the first terminal seat and the second terminal seat.

8. The liquid heater with reliable detection according to claim 1, characterized in that: The detection board is provided with a third terminal seat, and the first interface and the second interface are both provided at the third terminal seat.

9. The liquid heater with reliable detection according to claim 1, characterized in that: The second interface includes an input terminal and an output terminal arranged on the same terminal seat.

10. The liquid heater with reliable detection according to claim 1, characterized in that: The liquid heater further comprises a temperature measuring element, and the detection board is further provided with a third interface, and the third interface is connected to the temperature measuring element.

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