Detection plate for liquid heater and liquid heater

Abstract

The utility model belongs to the technical field of household appliances, and discloses a detection plate for a liquid heater and the liquid heater. The detection plate comprises a substrate, a plurality of capacitance pole pieces are arranged on the front face of the substrate, a processing chip and a wiring port are arranged on the back face of the substrate, at least one induction lamp is further arranged on the back face of the substrate, the capacitance pole pieces are arranged at intervals, and the induction lamp is located between every two adjacent capacitance pole pieces. The utility model further provides a liquid heater which comprises a cup body, a control board and the detection board, the detection board is fixedly installed on the outer side wall of the cup body, and the wiring port is connected with the control board. According to the detection board provided by the utility model, the detection process is visualized by arranging the induction lamp, a user can intuitively observe the change of a detection state, the arrangement of the induction lamp and the capacitor pole piece is compact, the size of the whole detection board is reduced, the use scene is increased, and the universality is strong.

Description

Technical Field

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

[0002] Existing liquid heaters generally include a cup body and a heating element for heating the cup body. In some food processors, in order to detect the liquid level in the cup and prevent the liquid from overflowing, an anti-overflow detection board is usually provided. For example, the patent with application number 201610753199.4 discloses an anti-overflow method and a food processor, which includes a cup body, a knife group, a cup fixing seat and a control circuit board; a signal PCB board is provided on the circumferential side wall of the cup body, and a metal sheet is provided on the signal PCB board. The knife group, the electric heating element and the signal PCB board are all connected to the control circuit board. This scheme uses the food in the cup body and the metal sheet on the signal PCB board to form a capacitor. The capacitance of the capacitor changes with the volume of the food in the cup body, so that the signal PCB board charges the metal sheet and generates a signal of charge movement on the signal PCB board. The signal PCB board transmits the signal of charge movement to the control circuit board. The control circuit board judges the volume of the food in the cup body through the signal of charge movement on the signal PCB board, and the reaction is sensitive and the judgment is accurate; and the metal sheet and the signal PCB board do not directly contact the food, and do not need to be cleaned, which is more convenient to use.

[0003] However, the existing signal PCB board detection method is only realized through signal transmission between the circuit board and the circuit board, and lacks visual display. Although this method can achieve reliable detection, it brings inconvenience to the user experience. It is difficult for the user to accurately understand the detailed boiling status of the liquid in the cup body, and cannot intuitively judge whether there is overflow or other abnormalities, which makes it difficult for the user to quickly take corresponding measures. Utility Model Content

[0004] The utility model provides a detection plate and a liquid heater for a liquid heater, so as to solve the problem that the existing detection method lacks visual display, causing the user to be unable to intuitively understand the actual detection status and having a poor experience.

[0005] The technical solution adopted by the utility model is:

[0006] The utility model provides a detection board for a liquid heater, comprising a substrate, a front side of the substrate is provided with a plurality of capacitor electrodes, a back side of the substrate is provided with a processing chip and a wiring port, and a back side of the substrate is also provided with at least one induction lamp, the plurality of capacitor electrodes are arranged at intervals, and the induction lamp is located between two adjacent capacitor electrodes.

[0007] The detection board provided by the utility model realizes visualization of the detection process by arranging an induction lamp on the back side, when the detection board is applied to the liquid heater for detection, the user can intuitively observe the detection state change according to the induction lamp, and realize a better human-computer interaction experience. Under the feedback of the induction lamp, when encountering abnormal situations, the user can find the problem in time and deal with it quickly, which is reliable to use. Generally, in order to save space and reduce costs, the volume of the substrate is limited, and the installation space is limited. The induction lamp is arranged between adjacent capacitor electrodes, which can ensure that the adjacent capacitor electrodes can reliably and independently detect the signal, and at the same time, the spacing space between the adjacent capacitor electrodes is reasonably utilized, so that the arrangement of the induction lamp and the capacitor electrode is compact, which is conducive to reducing the volume of the overall detection board, increasing the use scenarios, and having strong versatility. In addition, the induction lamp and the capacitor electrode are respectively located on the front and back sides of the substrate to achieve isolation, which can effectively improve the anti-interference ability of the capacitor electrode and improve the detection reliability.

[0008] In a preferred embodiment, the substrate is provided with a fixing hole, the induction lamp comprises a lamp bead and a pin, and the pin is fixed in the fixing hole by welding;

[0009] The induction lamp includes a lamp bead and a pin. The structure of the lamp bead is solid and has good resistance to vibration and impact. It can avoid collision damage during installation. It has a long service life, is durable, and has a certain three-dimensional sense, which can further enhance the user's viewing experience. The pin is fixed in the fixing hole by welding. The pin and the fixing hole are tightly connected, which can ensure that the connection between the pin and the substrate is more firm and stable, avoiding looseness or breakage during use, so as to improve the overall stability of the induction lamp. The conductive performance of the pin can also be well guaranteed by welding, reducing the instability of signal transmission.

[0010] In a preferred embodiment, the induction lamp is adhered to the back side of the substrate.

[0011] The induction lamp can be a patch lamp pasted on the back of the substrate, which occupies a small space, has a simple and reliable fixing method, a compact and flexible structure, is conducive to reducing the size of the detection board, and has a wide range of application scenarios.

[0012] In a preferred embodiment, a light-transmitting hole is provided through the substrate, and the induction lamp is fixed at the light-transmitting hole facing the light-transmitting hole.

[0013] Since the cup bodies of some liquid heaters are mostly made of glass, users can see the heating status of the liquid in the cup through the glass cup body. By setting a light-transmitting hole in the substrate, the induction lamp is fixed at the light-transmitting hole facing the light-transmitting hole, so that the light of the induction lamp is projected into the cup body through the substrate, which can not only realize the feedback of the detection status, but also illuminate the cup body, thereby improving the overall visualization effect and achieving a better human-computer interaction experience.

[0014] In a preferred embodiment, the induction lamp is inserted into the light-transmitting hole.

[0015] By inserting the induction lamp into the light-transmitting hole, the light gathering effect is achieved. At the same time, the induction lamp shares the thickness of the substrate, which is conducive to the overall thinning of the detection board, the compact size, and the convenience of installation and fixation.

[0016] In a preferred embodiment, an anti-overflow detection area and a water level detection area are provided on the front side of the substrate, the multiple capacitor electrodes include multiple anti-overflow capacitor electrodes arranged in the anti-overflow detection area and multiple water level capacitor electrodes arranged in the water level detection area, and the induction lamp is located in the anti-overflow detection area and / or the water level detection area.

[0017] By setting an anti-overflow detection area and a water level detection area on the substrate, the anti-overflow detection and water level detection of the liquid heater are realized, and the intelligence and integration of the detection board are improved. By correspondingly setting multiple water level capacitor electrodes and multiple anti-overflow capacitor electrodes, the liquid heater can heat liquids of different capacities. At the same time, when heating liquids of different capacities, anti-overflow detection is performed at different heights, thereby achieving full heating and boiling, shortening the anti-overflow detection time, saving the heating power of the heating device, saving energy, and realizing more intelligent production of slurry beverages. The induction lamp is set in the anti-overflow detection area and / or the water level detection area to provide feedback on the triggering state of the corresponding anti-overflow capacitor electrode or the sensing state of the corresponding water level capacitor electrode to achieve visualization.

[0018] In a preferred embodiment, the number of the induction lamps corresponds to the number of the capacitor electrodes, and the induction lamps and the capacitor electrodes are alternately arranged.

[0019] By matching the number of the induction lights with the number of the capacitor electrodes, one-to-one feedback is achieved, and each capacitor electrode can achieve visual feedback through the corresponding induction light. By alternating the induction lights and the capacitor electrodes and rationally utilizing the space between adjacent capacitor electrodes, the visualization range is made more comprehensive, and the detection board is made compact in structure and small in size, which is convenient for assembly and fixation and has a wide range of applications.

[0020] In a preferred embodiment, the distance between two adjacent capacitor electrodes is L, which satisfies 1 mm ≤ L ≤ 15 mm.

[0021] By setting the distance between two adjacent capacitor electrodes between 1-15mm, we can avoid the situation where the spacing is too large, resulting in a large area that cannot be detected, insufficient detection sensitivity, and too large overall volume; at the same time, we can avoid the situation where the spacing is too small, resulting in the induction lamp being difficult to install reliably and the light being blocked. Therefore, by meeting 1mm≤L≤15mm, it is possible to achieve reliable detection of the detection board and reduce the volume of the detection board, while facilitating the fixed installation of the induction lamp and improving the reliability of the overall structure.

[0022] In a preferred embodiment, a shielding area, a capacitor electrode wiring area and an induction lamp wiring area are set on the back side of the substrate, the leads of the capacitor electrode pass through the substrate and are set in the capacitor electrode wiring area, the leads of the induction lamp are set in the induction lamp wiring area, and the shielding area isolates the capacitor electrode wiring area and the induction lamp wiring area.

[0023] By setting a shielding area, such as a copper-clad mesh, signal shielding is achieved at the portion of the substrate other than the capacitor electrode, thereby improving the detection accuracy of the capacitor electrode and improving the anti-interference ability of the capacitor electrode. The shielding area is used to isolate the capacitor electrode wiring area and the sensor lamp wiring area, further avoiding entanglement of the wiring harness between the capacitor electrode and the sensor lamp and interference in signal transmission, thereby achieving reliable detection of the entire detection board.

[0024] In a preferred embodiment, the connection port includes a first port and a second port, the first port is connected to the processing chip, and the second port is connected to the induction lamp.

[0025] By setting the first port and the second port, the processing chip and the induction lamp are connected to the circuit board through different ports respectively, so that the assembler can clearly distinguish them when plugging them in, which is convenient for assembly and convenient for preventing the interference between the capacitance value signal of the processing chip and the signal transmission of the induction lamp, and the detection is reliable.

[0026] The utility model also provides a liquid heater, comprising a cup body, a control board and the above-mentioned detection board, wherein the detection board is fixedly mounted on the outer side wall of the cup body, and the wiring port is connected to the control board.

[0027] The liquid heater provided by the utility model installs the detection board on the outer wall of the cup body, which can realize the remote detection of the liquid level in the cup body, reduce the difficulty of cleaning for users, and the detection is reliable and intelligent. Since the detection board is provided with an induction lamp, the visualization of the liquid level change state is realized through the induction lamp, and the user can intuitively observe the real-time liquid level change in the cup body according to the induction lamp, and realize a better human-computer interaction experience. Under the feedback of the induction lamp, when encountering abnormal situations, the user can find the problem in time and deal with it quickly, which is reliable to use. The induction lamp is arranged between adjacent capacitor electrodes, which can ensure that the adjacent capacitor electrodes can reliably and independently detect the signal, and at the same time, the spacing between adjacent capacitor electrodes is reasonably utilized, so that the arrangement of the induction lamp and the capacitor electrode is compact, which is conducive to reducing the volume of the overall detection board and reducing the overall volume of the liquid heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

[0029] Figure 1 This is a schematic diagram of the front structure of the detection board in Example 1 of the present utility model;

[0030] Figure 2 This is a schematic diagram of the side structure of the detection board in Example 1 of the present utility model;

[0031] Figure 3 This is an enlarged schematic diagram of the local structure of the detection board in Example 1 of the present utility model;

[0032] Figure 4 This is a schematic diagram of the back structure of the detection board in Example 1 of the present utility model;

[0033] Figure 5 It is a perspective view of the detection board in the embodiment 2 of the present utility model, showing the back side of the detection board;

[0034] Figure 6 This is a schematic diagram of the side structure of the detection board in Example 2 of the present utility model;

[0035] Figure 7 This is an enlarged schematic diagram of the local structure of the detection board in Example 2 of the present utility model;

[0036] Figure 8 This is a schematic diagram of the back structure of the detection board in Example 2 of the present utility model;

[0037] Fig. 9 This is a schematic diagram of the structure of the liquid heater in Example 3 of the present utility model.

[0038] Explanation of the reference numerals: 10. detection board; 11. substrate; 12. wiring port; 13. processing chip; 14. induction lamp; 15. light-transmitting hole; 16. anti-overflow capacitor electrode; 17. water level capacitor electrode; 18. capacitor electrode; 101. induction lamp wiring area; 102. shielding area; 103. capacitor electrode wiring area; 20. cup body; 30. control board; 40. cup cover; 50. crushing knife; 60. motor. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] like Figure 1-4 As shown, the utility model provides a detection board 10 for a liquid heater in implementation example 1, including a substrate 11, a front side of the substrate 11 is provided with a plurality of capacitor electrodes, such as a water level capacitor electrode 17 and an anti-overflow capacitor electrode 16, a back side of the substrate 11 is provided with a processing chip 13 and a wiring port 12, and a back side of the substrate 11 is also provided with at least one induction lamp 14, and the plurality of capacitor electrodes are arranged at intervals, and the induction lamp 14 is located between two adjacent capacitor electrodes.

[0045] The detection board 10 provided in this embodiment is provided with a sensor lamp 14 on the back side. When the detection board 10 is applied to the liquid heater for detection, the detection process is visualized. The user can intuitively observe the detection state change according to the sensor lamp 14, and achieve a better human-computer interaction experience. Under the feedback of the sensor lamp 14, when encountering abnormal situations, the user can find the problem in time and deal with it quickly, which is reliable to use. Generally, in order to save space and reduce costs, the volume of the substrate 11 is limited, and the installation space is limited. The sensor lamp 14 is set between adjacent capacitor electrodes, which can ensure that the adjacent capacitor electrodes can reliably and independently detect the signal, and at the same time, the spacing between the adjacent capacitor electrodes is reasonably utilized, so that the arrangement of the sensor lamp 14 and the capacitor electrode is compact, which is conducive to reducing the volume of the overall detection board 10, increasing the use scenario, and having strong versatility. In addition, the sensor lamp 14 and the capacitor electrode are respectively located on the front and back sides of the substrate 11 to achieve isolation, which can effectively improve the anti-interference ability of the capacitor electrode and improve the detection reliability.

[0046] In implementation example 1, if Figure 1-4 As shown, a light-transmitting hole 15 is provided through the substrate 11, and the sensor lamp 14 is fixed at the light-transmitting hole 15 facing the light-transmitting hole 15. More preferably, the sensor lamp 14 is inserted into the light-transmitting hole 15. Preferably, the cup body 20 is a glass cup body 20 with high transparency, so that the user can clearly see the changes of the sensor lamp 14.

[0047] It can be understood that the induction lamp 14 used in this embodiment includes a lamp bead and a pin, wherein the lamp bead is inserted into the light-transmitting hole 15 .

[0048] Since the cup body 20 in some liquid heaters is mostly made of glass, the user can see the heating status of the liquid in the cup through the glass cup 20. By setting a light-transmitting hole 15 on the substrate 11, the induction lamp 14 is fixed at the light-transmitting hole 15 facing the light-transmitting hole 15, so that the light of the induction lamp 14 is projected into the cup body 20 through the substrate 11, which can not only realize the feedback of the detection status, but also illuminate the cup body 20, enhance the overall visualization effect, and realize a better human-computer interaction experience. By inserting the induction lamp 14 into the light-transmitting hole 15, the effect of light gathering is realized, and at the same time, the induction lamp 14 shares the thickness of the substrate 11, which is conducive to the overall thinning of the detection board 10, the volume is compact, and it is easy to install and fix.

[0049] The present invention does not limit the fixing method of the induction lamp 14. For example, in the implementation example 1, the substrate 11 is provided with a fixing hole, and the induction lamp 14 includes a lamp bead and a pin, and the pin is fixed in the fixing hole by welding. Optionally, the induction lamp 14 has two pins, and two fixing holes are provided corresponding to the pins, and each pin is fixed in the corresponding fixing hole separately, so that the electrical connection is reliable.

[0050] The induction lamp 14 includes a lamp bead and a pin. The structure of the lamp bead is solid, and it has good resistance to vibration and impact, which can avoid collision damage during installation. It has a long service life, is durable, and has a certain three-dimensional sense, which can further enhance the user's viewing experience. The pin is fixed in the fixing hole by welding, and the pin and the fixing hole are tightly connected, which can ensure that the connection between the pin and the substrate 11 is more firm and stable, and avoid loosening or breaking during use, so as to improve the overall stability of the induction lamp 14. The conductive performance of the pin can also be well guaranteed by welding, reducing the instability of signal transmission.

[0051] Alternatively, the induction lamp 14 is attached to the back side of the substrate 11 .

[0052] The induction lamp 14 can be a patch lamp pasted on the back of the substrate 11, which occupies a small space, has a simple and reliable fixing method, and a compact and flexible structure, which is conducive to reducing the volume of the detection board 10 and has a wide range of application scenarios.

[0053] Of course, the induction lamp 14 can also be fixed in other ways. For example, in other implementation examples, the induction lamp 14 includes a lamp sheet and a patch encapsulated outside the lamp sheet, the substrate 11 opens a light-transmitting hole 15, the lamp sheet extends into the light-transmitting hole 15, and the patch is reverse-soldered on the back of the substrate 11.

[0054] In other implementation examples, a buckle may be provided on the substrate 11, and the sensor lamp 14 may be fixed to the back of the substrate 11 through the buckle. A flange for fixing may also be provided on the sensor lamp 14, and the flange may be fixed to the substrate 11 by screws or welding.

[0055] The present invention does not limit the detection function of the detection board 10, for example:

[0056] Implementation example 1, preferably, an anti-overflow detection area (the area above the auxiliary line M) and a water level detection area (the area below the auxiliary line M) are provided on the front side of the substrate 11, and the multiple capacitor electrodes include multiple anti-overflow capacitor electrodes 16 arranged in the anti-overflow detection area and multiple water level capacitor electrodes 17 arranged in the water level detection area, and the induction lamp 14 is located in the anti-overflow detection area and / or the water level detection area.

[0057] Specifically, in implementation example 1, Figure 1 As shown, the induction lamp 14 is located in the overflow prevention detection area. The specific working mode of the induction lamp 14 will be described later in conjunction with the liquid heater.

[0058] Of course, the induction lamp 14 can also be set in the water level detection area, or the induction lamp 14 can be set in both the water level detection area and the anti-overflow detection area to correspond to different detection capacitor electrodes to achieve more comprehensive detection status feedback.

[0059] By setting an anti-overflow detection area and a water level detection area on the substrate 11, the anti-overflow detection and water level detection of the liquid heater are realized, and the intelligence and integration of the detection board 10 are improved. By correspondingly setting multiple water level capacitor electrodes 17 and multiple anti-overflow capacitor electrodes 16, the liquid heater can realize the function of heating liquids of different capacities. At the same time, when heating liquids of different capacities, anti-overflow detection is performed at different heights, thereby achieving sufficient heating and boiling, shortening the anti-overflow detection time, saving the heating power of the heating device, saving energy, and realizing more intelligent production of slurry beverages. The induction lamp 14 is set in the anti-overflow detection area and / or the water level detection area to provide feedback on the triggering state of the corresponding anti-overflow capacitor electrode 16 or the sensing state of the corresponding water level capacitor electrode 17 to achieve visualization.

[0060] Implementation Example 2, such as Figure 5-8 As shown, the number of the induction lamps 14 and the capacitor electrodes 18 corresponds, and the induction lamps 14 and the capacitor electrodes 18 are alternately arranged.

[0061] By matching the number of induction lights 14 with the number of capacitor electrodes, one-to-one feedback is achieved, and each capacitor electrode can achieve visual feedback through the corresponding induction light 14. By alternating the induction lights 14 and the capacitor electrodes and rationally utilizing the space between adjacent capacitor electrodes, the visualization range is made more comprehensive, and the structure of the detection board 10 is made compact, the size is small, and it is easy to assemble and fix, and has a wide range of applications.

[0062] The capacitor electrode 18 may be an anti-overflow capacitor electrode 16 for anti-overflow detection or a water level capacitor electrode 17 for detecting whether the water level has reached a required water level;

[0063] Alternatively, the capacitor electrode includes at least one of a cup cover 40 capacitor electrode for detecting whether the cup cover 40 is properly closed, an anti-overflow capacitor electrode 16, and a water level capacitor electrode 17.

[0064] In addition, different from Implementation Example 1, Figure 5-8 As shown, in this embodiment, the induction lamp 14 is arranged toward the back side of the substrate 11. Therefore, after the substrate 11 is installed on the cup body 20 to be detected, the feedback result can be sent outward, and the user can observe the corresponding detection status more intuitively.

[0065] In a preferred embodiment, Figure 5 As shown, the distance between two adjacent capacitor electrodes 18 is L, which satisfies 1mm≤L≤15mm.

[0066] By setting the distance between two adjacent capacitor electrodes to be between 1-15mm, it is possible to avoid the situation where the spacing is too large, resulting in a large area that cannot be detected, insufficient detection sensitivity, and too large an overall volume; and at the same time, it is possible to avoid the situation where the spacing is too small, resulting in the induction lamp 14 being difficult to install reliably and the light being blocked. Therefore, by satisfying 1mm≤L≤15mm, it is possible to achieve reliable detection of the detection board 10 and reduce the volume of the detection board 10, while facilitating the fixed installation of the induction lamp 14 and improving the reliability of the overall structure.

[0067] In a preferred embodiment, the detection height H of a single capacitor electrode satisfies H≥5mm. Preferably, H is between 5mm-30mm. Since the smaller the detection height of the capacitor electrode, the more precise the liquid level information can be identified. However, since the actual measurement is the voltage fluctuation caused by the change of the capacitor electrode, if the detection height is too small, the change amount generated on the capacitor electrode is reduced, and the required liquid level / overflow prevention information cannot be reliably identified. At the same time, it is also more susceptible to signal interference and misdetection, so the detection height of the capacitor electrode is taken as H≥5mm.

[0068] In a preferred embodiment, a shielding area 102, a capacitor electrode wiring area 103 and an induction lamp wiring area 101 are set on the back side of the substrate 11, the leads of the capacitor electrode pass through the substrate 11 and are set in the capacitor electrode wiring area 103, the leads of the induction lamp 14 are set in the induction lamp wiring area 101, and the shielding area 102 isolates the capacitor electrode wiring area 103 and the induction lamp wiring area 101.

[0069] Specifically, the shielding area 102 may be a copper-clad mesh.

[0070] As in implementation example 1, refer to Figure 4 , a space is reserved in the middle of the copper mesh to form an induction lamp wiring area 101, and a space is reserved on the periphery of the copper mesh to form a capacitor electrode wiring area 103;

[0071] As in implementation example 2, refer to Figure 8 The capacitor electrode wiring area 103 and the sensor lamp wiring area 101 are respectively located on both sides of the copper mesh.

[0072] By setting a shielding area 102, such as a copper-clad mesh, the portion of the substrate 11 outside the capacitor electrode is shielded from signals, thereby improving the detection accuracy of the capacitor electrode and improving the anti-interference ability of the capacitor electrode. The capacitor electrode wiring area 103 and the sensor lamp wiring area 101 are isolated by the shielding area 102, further avoiding entanglement of the wiring harness between the capacitor electrode and the sensor lamp 14 and interference in signal transmission, thereby achieving reliable detection of the entire detection board 10.

[0073] In addition, it should be noted that the wiring port 12 in the present invention can be shared by the processing chip 13 and the sensor light 14, or the wiring port 12 includes a first port and a second port, the first port is connected to the processing chip 13, and the second port is connected to the sensor light 14.

[0074] By setting the first port and the second port, the processing chip 13 and the induction lamp 14 are connected to the circuit board through different ports respectively, and the assembler can clearly distinguish them when plugging them in, which is convenient for assembly and convenient for interference between the capacitance value signal of the processing chip 13 and the signal transmission of the induction lamp 14, so that the detection is reliable.

[0075] The utility model also provides a liquid heater, for example:

[0076] Implementation Example 3, such as Fig. 9 As shown, the liquid heater includes a cup body 20 , a control board 30 and a detection board 10 . The detection board 10 is fixedly mounted on the outer wall of the cup body 20 , and the wiring port 12 is connected to the control board 30 .

[0077] like Fig. 9 As shown, the liquid heater in this embodiment is a wall breaking machine, and the liquid heater also includes a cup cover 40, a crushing knife 50 is arranged at the bottom of the cup body 20, and a motor 60 for driving the crushing knife 50 is arranged under the cup body 20 to prepare cold drinks and hot soy milk.

[0078] Specifically, in combination with the detection board 10 provided in implementation example 2, the capacitor electrodes include a plurality of water level capacitor electrodes 17 and a plurality of liquid level capacitor electrodes located above the water level capacitor electrodes 17 .

[0079] When food is added to the cup body 20, the capacitance changes on the electrode. When pulping is started, the detection board 10 uses the processing chip 13 to sample the capacitance information of the capacitor electrode to obtain the liquid level information, and controls the corresponding sensor lamp 14 to light up. At the same time, the processing chip 13 also feeds back the liquid level information to the control board 30 so that the control board 30 can match the pulping process of different capacities.

[0080] During the pulping process, as the food changes to different states such as heating, boiling, and overflow prevention, the processing chip 13 of the detection board 10 dynamically adjusts the display of different sensor lights 14 by sampling the capacitance changes of the capacitor electrode and feeds back to the control board 30 in real time, thereby adaptively adjusting the pulping process.

[0081] The liquid heater provided in this embodiment has the detection board 10 installed on the outer wall of the cup body 20, which can realize the remote detection of the liquid level in the cup body 20, reduce the difficulty of cleaning for users, and the detection is reliable and intelligent. Since the detection board 10 is provided with a sensor lamp 14, the visualization of the liquid level change state is realized through the sensor lamp 14, and the user can intuitively observe the real-time liquid level change in the cup body 20 according to the sensor lamp 14, so as to achieve a better human-computer interaction experience. Under the feedback of the sensor lamp 14, when encountering abnormal situations, the user can find the problem in time and deal with it quickly, which is reliable to use. The sensor lamp 14 is arranged between adjacent capacitor electrodes, which can ensure that the adjacent capacitor electrodes can reliably and independently detect the signal, and at the same time, the space between the adjacent capacitor electrodes is reasonably utilized, so that the arrangement of the sensor lamp 14 and the capacitor electrode is compact, which is conducive to reducing the volume of the overall detection board 10 and reducing the volume of the liquid heater.

[0082] Therefore, a detection board with a sensor light 14 is used to realize real-time detection of the liquid level and anti-overflow information of the liquid heater, and intelligently control the liquid heater to achieve the optimal pulping effect; on the other hand, the liquid level and anti-overflow information in the cup body 20 are displayed in real time through the sensor light 14, giving the user an intuitive interactive experience.

[0083] In a preferred embodiment, the induction lamp 14 uses a bicolor lamp or a multicolor lamp.

[0084] When the liquid level in the cup body 20 is stable, one color is used to indicate the liquid level information; when the liquid level is boiling and fluctuating or even overflow prevention occurs, another color is used to indicate the state change. Similarly, multi-color lights can also be used to display the change process. For example, the color changes of "green-yellow-red" can be used to display the "water level-boiling-overflow prevention" states respectively. In addition, the control board 30 can be optionally configured so that when the high-position capacitor electrode is triggered, the capacitor electrode below it can be always on; or the light can be off.

[0085] It can be understood that this implementation example only illustrates the working status of the sensor lamp 14 in combination with overflow prevention and water level detection. In fact, the capacitor electrode can also be used for cup cover 40 detection, and the corresponding sensor lamp 14 is used to feedback whether the cup cover 40 is properly closed and whether the cup cover 40 is loose during the pulping process.

[0086] It should also be noted that in addition to the structure of the present embodiment, the liquid heater can actually also be a soymilk maker with a machine head, a wall-breaking machine of other forms with a detachable cup body 20, or a health pot, a boiling water kettle, etc.

[0087] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0088] 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.

[0089] 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 detection plate for a liquid heater, characterized in that: It comprises a substrate, a front side of which is provided with a plurality of capacitor electrodes, a back side of which is provided with a processing chip and a wiring port, and a back side of which is provided with at least one induction lamp. The plurality of capacitor electrodes are arranged at intervals, and the induction lamp is located between two adjacent capacitor electrodes.

2. A detection plate for a liquid heater according to claim 1, characterized in that: The substrate is provided with a fixing hole through it, the induction lamp comprises a lamp bead and a pin, and the pin is fixed in the fixing hole by welding; Alternatively, the induction lamp is adhered to the back side of the substrate.

3. A detection plate for a liquid heater according to claim 1, characterized in that: The substrate is provided with a light-transmitting hole through it, and the induction lamp is fixed at the light-transmitting hole toward the light-transmitting hole.

4. A detection plate for a liquid heater according to claim 3, characterized in that: The induction lamp is inserted into the light-transmitting hole.

5. A detection plate for a liquid heater according to claim 1, characterized in that: An anti-overflow detection area and a water level detection area are provided on the front side of the substrate. The multiple capacitor electrodes include multiple anti-overflow capacitor electrodes arranged in the anti-overflow detection area and multiple water level capacitor electrodes arranged in the water level detection area. The induction lamp is located in the anti-overflow detection area and / or the water level detection area.

6. A detection plate for a liquid heater according to claim 1, characterized in that: The number of the induction lamps corresponds to the number of the capacitor electrodes, and the induction lamps and the capacitor electrodes are alternately arranged.

7. A detection plate for a liquid heater according to claim 1, characterized in that: The distance between two adjacent capacitor electrodes is L, which satisfies 1mm≤L≤15mm.

8. A detection plate for a liquid heater according to claim 1, characterized in that: A shielding area, a capacitor electrode wiring area and an induction lamp wiring area are arranged on the back side of the substrate. The leads of the capacitor electrode pass through the substrate and are arranged in the capacitor electrode wiring area. The leads of the induction lamp are arranged in the induction lamp wiring area. The shielding area isolates the capacitor electrode wiring area from the induction lamp wiring area.

9. A detection plate for a liquid heater according to claim 1, characterized in that: The connection port includes a first port and a second port, the first port is connected to the processing chip, and the second port is connected to the induction lamp.

10. A liquid heater, characterized in that: It comprises a cup body, a control board and the detection board according to any one of claims 1 to 9, wherein the detection board is fixedly mounted on the outer side wall of the cup body, and the wiring port is connected to the control board.

Images