Liquid heater
Through the combination of independently-set induction plates, processing plates, temperature detection units and water level detection areas, the problem of unstable overflow detection structure of the liquid heater is solved, and higher detection accuracy and stability are achieved, improving user experience.
Patent Information
- Application Number
- CN202422111854.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing liquid heaters have poor stability in overflow detection structures, resulting in poor overflow detection effect and difficulty in cleaning. Food residues lead to reduced electrode sensitivity, affecting detection accuracy.
The first induction plate and processing plate independently arranged are respectively installed on the outside of the glass cup body. Combined with the temperature detection unit, it is electrically connected to the processing plate through a capacitor plate to realize signal acquisition and processing, automatically compensate for the overflow signal threshold, add a water level detection area, use a handle to protect the detection component, and use a flexible circuit board to improve fit and stability.
It improves the accuracy and stability of anti-spill detection, reduces installation difficulty, extends the service life of the detection components, and improves the user experience.
Smart Images
Figure CN223208220U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of household electrical appliances and specifically relates to a liquid heater. Background Art
[0002] Liquid heaters are widely used due to their quick and convenient heating capabilities. Existing liquid heaters, such as electric kettles and health kettles, are compact and easy to access, making them widely used in homes and offices. Furthermore, as living standards improve, consumers' pursuit of a better user experience for drinking water products is also increasing, and consumers are more willing to choose liquid heaters that offer a better user experience.
[0003] When a liquid heater is heated to a certain temperature, the liquid inside reaches boiling point and is prone to overflowing. Some liquid heaters, such as wall-breaking machines, generate a large amount of foam during the crushing and heating process. The foam floating on the top of the liquid can overflow outside the blender cup, causing dirt to adhere to the surface of the food processor, affecting the quality of food processing and increasing the cleaning workload. Therefore, in the prior art, an overflow detection structure is installed in the liquid heater to prevent liquid overflow.
[0004] In the prior art, an electrode rod is provided on the cover of the liquid heater. However, this type of overflow control structure is difficult to clean, and after long-term use, food residues generated will cause the electrode sensitivity to decrease, thereby causing overflow prevention failure.
[0005] To solve the above problems, the existing technology arranges a PCB board mount on the liquid heater, and integrates the capacitor electrodes and signal acquisition and processing board used for overflow prevention detection, water level detection, etc. into a single PCB board. However, this will cause the extended length of the PCB board to be longer, and the PCB board itself has a certain hardness and thickness, which makes it impossible to fit closely to the outer surface of the glass cup body, affecting the accuracy of the detection effect. Utility Model Content
[0006] The present application provides a liquid heater, which solves the problem in the prior art that the anti-overflow detection structure of the liquid heater has poor stability, resulting in poor anti-overflow detection effect.
[0007] The technical solutions adopted in this application are:
[0008] A liquid heater includes a glass cup body and a detection component arranged on the outer wall of the glass cup body. The detection component includes a first sensing plate, a temperature detection unit and a processing board. The first sensing plate is provided with a first capacitor electrode. The first capacitor electrode and the temperature detection unit are both electrically connected to the processing board. Along the height direction of the glass cup body, the detection height of the first capacitor electrode is greater than the detection height of the temperature detection unit.
[0009] The first sensing plate and processing plate in the present application are independently arranged. Compared with the method of integrating the detection component into the PCB board in the prior art, the extended length of the PCB board is longer, and the PCB board itself has a certain hardness and thickness, which makes it impossible to fit closely to the outer surface of the glass cup body. The first sensing plate and processing plate in the present solution are small in size and thickness, and can be installed separately, so that the first sensing plate and processing plate can better fit the shape of the liquid heater itself, which is conducive to improving the installation stability, thereby further improving the accuracy of anti-overflow detection.
[0010] It should be noted that the liquid heaters in this solution can be in various forms, such as health kettles, food processors, or soymilk makers, and all of them can use the detection components in this solution to achieve overflow detection. Furthermore, the independently configured first sensing board and processing board in this solution, compared to PCB boards, can be adaptably installed on different models, which helps reduce processing and installation difficulties, ensuring proper installation and further improving detection accuracy.
[0011] The present application scheme realizes signal acquisition and processing by setting up a detection component. The first capacitor electrode set by the first sensing plate and the liquid in the cup body form a capacitor. The volume change of the liquid in the cup body causes the capacitance of the capacitor to change. At the same time, since the first capacitor electrode is electrically connected to the processing board, it transmits the charge transfer signal to the processing board. The processing board receives the charge transfer signal and judges the size of the liquid volume in the body through the charge transfer signal, and compares the judgment value with the preset value.
[0012] In addition, since temperature affects the equivalent capacitance value, the capacitance value of the foam detected by the first capacitance electrode is different under different temperature conditions, and the generation of foam does not necessarily occur at very high temperatures. If the same overflow prevention base value is used to judge the overflow prevention signal, there will be a certain error, which may lead to overflow prevention detection errors.
[0013] Therefore, this solution also sets a temperature detection unit to compensate the threshold of the first capacitor electrode to judge the anti-overflow signal, thereby further improving the accuracy of the anti-overflow detection.
[0014] The present invention incorporates a temperature detection unit that automatically compensates for the overflow prevention threshold, making overflow prevention signal detection more accurate. Furthermore, since the temperature thresholds for bubble generation may vary for different ingredients, the temperature detection unit can assist in determining the overflow prevention signal threshold. The temperature detection unit can be installed on the processing board, the first sensing board, or separately. The appropriate configuration can be selected based on the actual installation environment.
[0015] In a preferred implementation of the liquid heater, a plurality of first capacitor electrodes are provided on the first sensing plate, and the plurality of first capacitor electrodes form an anti-overflow detection area on the first sensing plate.
[0016] By providing multiple first capacitor plates, detection accuracy is improved. The overflow-proof detection area formed by the multiple first capacitor plates helps increase the sensing area and detection coverage area, ensuring detection efficiency and accuracy. Furthermore, if multiple first capacitor plates are provided, even if one first capacitor plate is damaged or fails for other reasons, the other first capacitor plates of the first sensing plate can still achieve detection results.
[0017] In a preferred implementation of the liquid heater, the detection component also includes a second sensing plate, on which a plurality of second capacitor electrodes are provided. The plurality of second capacitor electrodes form a water level detection area on the second sensing plate. The water level detection area is located below the anti-overflow detection area, and the second capacitor electrodes are electrically connected to the processing plate.
[0018] By setting up a second sensing plate and a second capacitor electrode, the water level detection of the liquid heater is realized, and different water level detections are performed for different pulping capacities. The second capacitor electrode is also electrically connected to the processing plate, and the second sensing plate cooperates with the first sensing plate to realize different overflow prevention detections at different water levels, further increasing the functionality of the detection component and meeting the user's usage needs.
[0019] In a preferred implementation of the liquid heater, the temperature detection unit is provided on the processing plate;
[0020] Alternatively, the temperature detection unit is provided on the first sensing plate;
[0021] Alternatively, the temperature detection unit is provided independently of the first sensing board and the processing board.
[0022] When the temperature detection unit is set on the processing plate or the first sensing plate, the detection component can be highly integrated and modularized based on the separation of the first sensing plate and the processing plate, and it is helpful to reduce the installation steps between the detection component and the liquid heater.
[0023] When the temperature detection unit is independent of the first sensing plate and processing plate, the three components are smaller than when integrated. This allows for better contact between the temperature detection unit, the first sensing plate, and the processing plate, and the cup body, thereby improving the accuracy of overflow prevention detection. Furthermore, the independent temperature detection unit facilitates separate maintenance or replacement of the temperature detection unit, the first sensing plate, and the processing plate.
[0024] In a preferred implementation of the liquid heater, the liquid heater further includes a handle fixedly connected to the glass body, and the detection assembly is located between the handle and the glass body.
[0025] By setting the detection component between the handle and the glass cup body, since it is necessary to reserve avoidance space for the handle when placing the liquid heater, setting the detection component between the handle and the glass cup body can prevent the detection component from being scratched and protect the detection component, which is beneficial to the stability of the detection component and the detection accuracy of the detection component.
[0026] In a preferred implementation of the liquid heater, a projection of the handle in a radial direction of the glass body covers the detection assembly.
[0027] The handle shields the detection component mounted on the glass, preventing it from being bumped and further protecting it. This allows it to operate stably for extended periods, improving the accuracy of overflow prevention detection. This prevents partial failure of the detection component, ensuring the integrity of each component's attachment, and ultimately ensuring accurate overflow prevention.
[0028] In addition, using the handle to cover the detection component helps to ensure the consistency of the appearance of the liquid heater and improve the user experience.
[0029] In a preferred implementation of the liquid heater, the first induction plate and the processing plate are arranged vertically along the height direction of the glass body.
[0030] By limiting the arrangement of the first sensing plate and the processing plate, the first sensing plate and the processing plate are arranged vertically in sequence along the glass cup body, and the first sensing plate and the processing plate are coaxially arranged along the height direction of the glass cup body, which facilitates wiring connection of the first sensing plate and the processing plate.
[0031] In addition, the first sensing plate and the processing plate can be vertically staggered, which facilitates installation of the first sensing plate and the processing plate when the liquid heater is small in size or the detection component covers a large area.
[0032] In a preferred implementation of the liquid heater, a seal is provided on the side of the handle facing the glass body, the first induction plate is clamped and fixed between the seal and the outer wall of the glass body, and the projection of the seal toward the glass body covers the first induction plate.
[0033] By adding a seal to the handle, the first sensor plate is squeezed and fixed to the surface of the glass where the handle is mounted. This protects against moisture and allows for close contact with the surface, improving detection accuracy. The seal also effectively prevents food residue from entering the mounting gap and interfering with signal detection, further enhancing spill prevention.
[0034] In a preferred implementation of the liquid heater, the liquid heater further comprises a handle fixedly connected to the glass body, and the detection component is arranged on one side of the handle along the circumference of the outer side wall of the glass body.
[0035] By setting the position of the detection component on the glass cup body to avoid the projection of the handle, that is, the detection component and the handle can be regarded as staggered in the circumferential direction of the glass cup body, this method facilitates the installation of the detection component on the glass cup body and facilitates the inspection and maintenance of the detection component, reduces the difficulty of installing the detection component, and provides a larger installation space for the detection component.
[0036] In a preferred implementation of the liquid heater, the first sensing board is a flexible circuit board, and the flexible circuit board is adhered and fixed to the outer wall of the glass body.
[0037] The first sensing board is set as a flexible circuit board, which is easier to achieve installation on the glass cup body, thereby making the installation effect of the first sensing board more stable, which is conducive to further improving the accuracy of the anti-overflow detection of the detection component. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0039] Figure 1 This is a schematic diagram of the assembly of a detection component in one embodiment of the present utility model;
[0040] Figure 2 This is a schematic diagram of the assembly of a detection component in another embodiment of the present invention.
[0041] Description of reference numerals:
[0042] 1-glass cup body, 2-handle, 3-detection component, 31-first sensing plate, 311-first capacitor electrode, 32-processing board, 33-temperature detection unit. DETAILED DESCRIPTION
[0043] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.
[0044] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.
[0045] The present application provides a liquid heater, such as Figure 1 、 Figure 2 As shown, it includes a glass cup body 1 and a detection component 3 arranged on the outer wall of the glass cup body 1. The detection component 3 includes a first sensing plate 31, a temperature detection unit and a processing board 32. The first sensing plate 31 is provided with a first capacitor electrode 311. The first capacitor electrode 311 and the temperature detection unit are both electrically connected to the processing board 32. Along the height direction of the glass cup body 1, the detection height of the first capacitor electrode 311 is greater than the detection height of the temperature detection unit.
[0046] The first sensing plate 31 and the processing plate 32 in the present application are independently arranged. Compared with the method of integrating the detection component 33 into the PCB board in the prior art, the extension length of the PCB board is longer, and the PCB board itself has a certain hardness and thickness, which makes it impossible to fit closely to the outer surface of the glass cup body 11. The first sensing plate 31 and the processing plate 32 in this solution are small in size and thickness, and can be installed separately, so that the first sensing plate 31 and the processing plate 32 can better fit the shape of the liquid heater itself, which is conducive to improving the installation stability, thereby further improving the accuracy of anti-overflow detection.
[0047] It should be noted that the liquid heater in this embodiment can be a variety of forms, such as a health kettle, a food processor, or a soymilk maker, and all of them can use the detection component 33 in this embodiment to achieve overflow detection. Moreover, the independently provided first sensing board 31 and processing board 32 in this embodiment can be adaptively installed on different models, compared to PCB boards, which helps to reduce the difficulty of processing and installation, facilitate the installation in place, and further improve detection accuracy.
[0048] The present application solution realizes signal acquisition and processing by setting up a detection component 33. The first capacitor electrode 311 set by the first sensing plate 31 and the liquid in the cup body form a capacitor. The volume change of the liquid in the cup body causes the capacitance of the capacitor to change. At the same time, since the first capacitor electrode 311 is electrically connected to the processing board 32, it transmits the charge transfer signal to the processing board 32. The processing board 32 receives the charge transfer signal and judges the size of the liquid volume in the body through the charge transfer signal, and compares the judgment value with the preset value.
[0049] In addition, since temperature affects the equivalent capacitance value, the capacitance value of the foam detected by the first capacitance electrode is different under different temperature conditions, and the generation of foam does not necessarily occur at very high temperatures. If the same overflow prevention base value is used to judge the overflow prevention signal, there will be a certain error, which may lead to overflow prevention detection errors.
[0050] Therefore, the present solution further provides a temperature detection unit 33 to compensate for the threshold of the first capacitor electrode 311 for determining the anti-overflow signal, thereby further improving the accuracy of the anti-overflow detection.
[0051] The present invention incorporates a temperature detection unit 33, which automatically compensates for the overflow prevention threshold, making overflow prevention signal detection more accurate. Furthermore, since the temperature thresholds for bubble generation may vary for different ingredients, the temperature detection unit 33 can assist in determining the overflow prevention signal threshold. The temperature detection unit 33 can be located on the processing plate 32 or the first sensing plate 31, or separately. The appropriate configuration can be selected based on the actual installation environment.
[0052] In a preferred embodiment, a plurality of first capacitor electrodes 311 are provided on the first sensing plate 31 , and the plurality of first capacitor electrodes 311 form an anti-overflow detection area on the first sensing plate 31 .
[0053] By providing multiple first capacitor plates 311, detection accuracy is improved. The overflow-proof detection area formed by the multiple first capacitor plates 311 helps to increase the sensing area and detection coverage area, ensuring detection efficiency and accuracy. Furthermore, by providing multiple first capacitor plates 311, if one first capacitor plate 311 is damaged or fails for other reasons, the other first capacitor plates 311 of the first sensing plate 31 can still achieve detection results.
[0054] In one embodiment, the detection component 3 also includes a second sensing plate, on which a plurality of second capacitor electrodes are provided. The plurality of second capacitor electrodes form a water level detection area on the second sensing plate. The water level detection area is located below the anti-overflow detection area. The second capacitor electrodes are electrically connected to the processing board 32.
[0055] By setting a second sensing plate and a second capacitor electrode, the water level detection of the liquid heater is realized, and different water level detections are performed for different pulping capacities. The second capacitor electrode is also electrically connected to the processing plate 32, and the second sensing plate cooperates with the first sensing plate 31 to realize different anti-overflow detection at different water levels, further increasing the functionality of the detection component 3 to meet the user's usage needs.
[0056] In this application, there are many ways to set the temperature detection unit 33. For details, please refer to the following embodiments:
[0057] Embodiment 1: Integrate the temperature detection unit 33 with the first sensing board 31 or the processing board 32.
[0058] like Figure 1 As shown, the temperature detection unit 33 is provided on the processing board 32;
[0059] Or as Figure 2 As shown, the temperature detection unit 33 is provided on the first sensing plate 31;
[0060] When the temperature detection unit 33 is set on the processing plate 32 or the first sensing plate 31, the detection component 3 can be highly integrated and modularized based on the separation of the first sensing plate 31 and the processing plate 32, and it is beneficial to reduce the installation steps between the detection component 3 and the liquid heater.
[0061] Embodiment 2: The temperature detection unit 33 is provided independently from the first sensing plate 31 and the processing plate 32 .
[0062] When the temperature detection unit is independent of the first sensing plate 31 and processing plate 32, the three components are smaller, reducing their size compared to an integrated design. This allows for better contact between the temperature detection unit 33, the first sensing plate 31, and the processing plate 32 and the cup body, thereby improving the accuracy of overflow prevention detection. Furthermore, the independent installation of the temperature detection unit 33 facilitates separate maintenance or replacement of the temperature detection unit 33, the first sensing plate 31, and the processing plate 32.
[0063] There are many ways to set the position of the detection component 3 in this solution:
[0064] Implementation method one:
[0065] like Figure 1 、 Figure 2 As shown, the liquid heater further includes a handle 2 fixedly connected to the glass body 1 , and the detection assembly 3 is located between the handle 2 and the glass body 1 .
[0066] By arranging the detection component 3 between the handle 2 and the glass cup body 1, since it is necessary to reserve avoidance space for the handle 2 when placing the liquid heater, the detection component 3 is arranged between the handle 2 and the glass cup body 1. This can prevent the detection component 3 from being scratched and protect the detection component 3, thereby facilitating the stable adhesion of the detection component 3 and ensuring the detection accuracy of the detection component 3.
[0067] Implementation method 2:
[0068] The liquid heater further comprises a handle 2 fixedly connected to the glass body 1 , and the detection component 3 is arranged on one side of the handle 2 along the circumference of the outer wall of the glass body 1 .
[0069] By setting the position of the detection component 3 on the glass cup body 1 to avoid the projection of the handle 2, that is, the detection component 3 and the handle 2 can be regarded as being staggered in the circumferential direction of the glass cup body 1, this method facilitates the installation of the detection component 3 on the glass cup body 1, and facilitates the inspection and maintenance of the detection component 3, reduces the difficulty of installing the detection component 3, and provides a larger installation space for the detection component 3.
[0070] In addition, in the first embodiment, the positional relationship between the handle 2 and the detection component 3 may be specifically described with reference to the following embodiments:
[0071] Example 1:
[0072] like Figure 1 、 Figure 2 As shown, the projection of the handle 2 in the radial direction of the glass body 1 covers the detection component 3 .
[0073] The handle 2 shields the detection assembly 3 disposed on the glass body 1, preventing the detection assembly 3 attached to the glass body 1 from being bumped, further protecting the detection assembly 3, thereby enabling the detection assembly 3 to operate stably for a long time, and improving the accuracy of overflow prevention detection. Partial failure of the detection assembly 3 is prevented, which helps ensure the integrity of the attachment of various parts of the detection assembly 3, thereby achieving accurate overflow prevention of the detection assembly 3.
[0074] In addition, using the handle 2 to cover the detection component 3 is beneficial to ensuring the consistency of the appearance of the liquid heater and improving the user's viewing experience.
[0075] Furthermore, the first sensing plate 31 and the processing plate 32 are arranged up and down along the height direction of the glass body 1 .
[0076] By limiting the arrangement of the first sensing plate 31 and the processing plate 32, the first sensing plate 31 and the processing plate 32 are arranged vertically in sequence along the glass cup body 1, and the first sensing plate 31 and the processing plate 32 are coaxially arranged along the height direction of the glass cup body 1, which facilitates wiring connection of the first sensing plate 31 and the processing plate 32.
[0077] In addition, the first sensing plate 31 and the processing plate 32 can be vertically staggered, which facilitates the installation of the first sensing plate 31 and the processing plate 32 when the liquid heater is small or the detection component 3 covers a large area.
[0078] Example 2:
[0079] A sealing member is provided on the side of the handle 2 facing the glass body 1 , and the first sensing plate 31 is clamped and fixed between the sealing member and the outer wall of the glass body 1 , and the projection of the sealing member toward the glass body 1 covers the first sensing plate 31 .
[0080] By adding a seal to handle 2, the first sensing plate 31 is pressed and fixed to the surface of the glass body 1 at the handle 2 installation point through the seal. This protects against moisture and allows for close contact with the surface of the glass body 1, which helps improve detection accuracy. The seal also effectively prevents food residue from entering the installation gap and interfering with signal detection, further enhancing the anti-overflow effect.
[0081] In one embodiment, the first sensing board 31 is a flexible circuit board, which is adhered and fixed to the outer wall of the glass body 1 .
[0082] The first sensing plate 31 is set as a flexible circuit board, which is easier to achieve covering installation on the glass cup body 1, thereby making the installation effect of the first sensing plate 31 more stable, which is conducive to further improving the accuracy of the overflow prevention detection of the detection component 3.
[0083] Anything not described in this application can be achieved by adopting or drawing on existing technologies.
[0084] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.
[0085] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.
Claims
1. A liquid heater, comprising a glass body and a detection assembly provided on the outer side wall of the glass body, characterized in that: The detection component includes a first sensing plate, a temperature detection unit and a processing board. The first sensing plate is provided with a first capacitor electrode. The first capacitor electrode and the temperature detection unit are electrically connected to the processing board. Along the height direction of the glass cup body, the detection height of the first capacitor electrode is greater than the detection height of the temperature detection unit.
2. A liquid heater according to claim 1, characterized in that: A plurality of first capacitor electrodes are provided on the first sensing plate, and the plurality of first capacitor electrodes form an anti-overflow detection area on the first sensing plate.
3. A liquid heater according to claim 2, characterized in that: The detection component also includes a second sensing plate, on which a plurality of second capacitor electrodes are provided. The plurality of second capacitor electrodes form a water level detection area on the second sensing plate. The water level detection area is located below the anti-overflow detection area. The second capacitor electrodes are electrically connected to the processing board.
4. The liquid heater according to claim 1, characterized in that: The temperature detection unit is provided on the processing board; Alternatively, the temperature detection unit is provided on the first sensing plate; Alternatively, the temperature detection unit is provided independently of the first sensing plate and the processing plate.
5. The liquid heater according to claim 1, characterized in that: The liquid heater further includes a handle fixedly connected to the glass body, and the detection component is located between the handle and the glass body.
6. The liquid heater according to claim 5, characterized in that: The projection of the handle in the radial direction of the glass body covers the detection component.
7. The liquid heater according to claim 6, characterized in that: The first sensing plate and the processing plate are arranged up and down along the height direction of the glass body.
8. The liquid heater according to claim 5, characterized in that: A sealing member is provided on the side of the handle facing the glass body, the first sensing plate is clamped and fixed between the sealing member and the outer side wall of the glass body, and the projection of the sealing member toward the glass body covers the first sensing plate.
9. The liquid heater according to claim 1, characterized in that: The liquid heater further includes a handle fixedly connected to the glass body, and the detection component is arranged on one side of the handle along the circumference of the outer side wall of the glass body.
10. The liquid heater according to any one of claims 1 to 9, characterized in that: The first sensing board is a flexible circuit board, and the flexible circuit board is adhered and fixed to the outer wall of the glass body.