Liquid heater

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly relates to a liquid heater which comprises a glass cup body, a heating disc, a mounting seat and a detection plate, the glass cup body is provided with a lower opening, and the mounting seat supports the heating disc and is fixedly connected to the lower portion of the glass cup body in a sleeved mode to enable the heating disc to seal the lower opening. An annular matching gap is formed between the installation base and the outer wall of the glass cup body, the detection plate comprises a detection section fixed to the outer wall of the glass cup body and a signal processing section connected to the lower portion of the detection section, and the signal processing section is correspondingly arranged on the outer side of the installation base. The isolation piece vertically extends along the outer wall of the installation base to isolate the signal processing section and the installation base, an elastic positioning rib is arranged on the side, facing the installation base, of the isolation piece in a protruding mode, and the positioning rib is clamped in the matching gap in an interference mode. Through the arrangement of the separator, the positioning reliability of the separator is improved, the influence of the work of the heating disc on the signal processing section is reduced, and the signal processing section is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and particularly relates to a liquid heater. Background Art

[0002] With the progress of technology, most of the anti-overflow detection methods currently used for kitchen appliances are non-contact detection. That is, a detection board is fixedly arranged on the outer side of a glass cup body, and capacitive electrode plates capable of non-contact sensing of the liquid level signal in the cup body are arranged on the detection board to prevent food from overflowing.

[0003] For example, the applicant previously filed a patent with the application number CN201720526032.4. In this patent, it is disclosed that the detection component is arranged to coincide with the radial projection of the handle, and both the upper and lower ends of the handle are connected to the side wall of the glass cup body. Specifically, the detection component includes a capacitive induction board positioned on the outer side wall of the glass cup through a handle shell. During the installation process, two symmetric and oppositely joined handle covers need to clamp the handle while clamping the capacitive induction board, so as to position the capacitive induction board while fixing the handle shell, ensuring the relative positional relationship between the capacitive induction board and the glass cup body. Although in this solution, the capacitive induction board and the glass cup body are in a relatively fixed relationship, making the fixing structure of the two reliable and enabling the capacitive induction board to achieve effective detection. However, in this structure, the lower end of the handle will occupy the installation space along the vertical direction on the outer side of the cup body, resulting in the lowest end of the existing capacitive induction board being arranged at a position higher than the lower end of the handle for avoidance. This will raise the detection lower limit of the capacitive induction board, resulting in a large detection blind area in the lower part of the cup body, and situations where low water level detection and dry burning detection cannot be performed.

[0004] During further research, the applicant also filed an application with the application number 2024206259042. This application discloses a liquid heater with comprehensive liquid level detection, including a positioning groove for positioning a detection board, a first positioning groove vertically arranged on the outer wall of the glass cup body, and a second positioning groove extending from the first positioning groove to the outer wall of the mounting seat. The detection section and the signal processing section of the detection board are respectively located in the first positioning groove and the second positioning groove. Such an arrangement can lower the detection lower limit of the detection board, expand the detection area of the glass cup body in the height direction, and reduce the detection blind area. Moreover, the applicant also proposed to set a shielding member between the detection board and the mounting seat. The shielding member is integrally connected with a sealing ring sleeved on the outer side of the mounting gap between the glass cup body and the mounting seat to achieve a heat insulation effect and solve the problem that the signal processing section is subjected to long-term heat radiation from the heating member. Based on this application, the applicant found during further research that since the shielding member is integrally connected with the sealing ring, and the sealing ring is interference-fitted on the outer side of the mounting gap, when the sealing ring is heated or in other situations, the sealing ring will loosen. This will cause the shielding member to shift or twist along with the sealing ring, resulting in unreliable positioning and affecting the detection accuracy of the detection board. Utility Model Content

[0005] The utility model provides a liquid heater, which solves the problem of radiant heat from a heating disk to a detection plate by setting an isolating piece, and further optimizes the structure and fixing method of the isolating piece to solve the problem of unreliable positioning of the isolating piece.

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

[0007] The utility model provides a liquid heater, comprising a glass cup body, a heating plate, a mounting seat and a detection plate for detecting liquid level in the air, the glass cup body being provided with a lower opening, the mounting seat supporting the heating plate and being sleeved and fixed on the lower part of the glass cup body so that the heating plate closes the lower opening, an annular fitting gap is formed between the mounting seat and the outer wall of the glass cup body, the detection plate comprising a detection section fixed on the outer wall of the glass cup body and a signal processing section connected below the detection section, the signal processing section corresponding to the outer side of the mounting seat, the liquid heater also comprising an isolating member, the isolating member extending vertically along the outer wall of the mounting seat to isolate the signal processing section from the mounting seat, the isolating member being provided with an elastic positioning rib protruding on the side facing the mounting seat, the positioning rib being interference fit in the fitting gap.

[0008] A liquid heater provided by the utility model utilizes a mounting seat to support a heating plate. The mounting seat is sleeved on the lower part of the glass cup body, so as to reliably fix the heating plate at the lower part of the glass cup body, realize heating of the glass cup body, and form an annular fitting gap between the mounting seat and the outer wall of the glass cup body. Since the detection board includes a detection section and a signal processing section connected below the detection section, and the signal processing section is correspondingly located outside the mounting seat, the detection section can be extended downward along the height direction of the glass cup body without avoiding the handle in the traditional technology. Thus, the detection lower limit can be reduced, the detection blind area at the lower part of the glass cup body can be reduced, and the detection range can be expanded. At the same time, the signal processing section can be used to install a processing chip to process the detection signal of the capacitor electrode plate on the detection section. Of course, a capacitor electrode plate for non-contact detection can also be further installed on the basis of processing the signal to expand the detection, so as to realize the comprehensiveness of the detection area. Further, since the mounting seat supports the heating plate, there will be direct heat conduction between the heating plate and the mounting seat. Correspondingly, the signal processing section will also be affected by a large amount of heat from the heating plate. For example, structures such as the processing chip and wiring terminals on the signal processing section will age after being heated for a long time, and problems such as inaccurate detection caused by the slow processing speed of the processing chip will occur. Therefore, by setting an isolation member, the isolation member extends vertically along the outer wall of the mounting seat to isolate the signal processing section from the mounting seat, which can reduce the influence of the operation of the heating plate on the signal processing section, protect the signal processing section, reduce the error generated by signal processing, improve the detection accuracy, realize effective and reliable detection, and extend the service life of the detection board. Furthermore, the isolation member is convexly provided with elastic positioning ribs on the side facing the mounting seat, and the positioning ribs are press-fitted into the fitting gap. Therefore, the positioning of the isolation member itself with the glass cup body and the mounting seat is more firm, avoiding the detachment of the isolation member, preventing the position deviation or distortion of the isolation member from causing the change of the detection position of the detection board, and improving the detection accuracy. In addition, the positioning ribs being press-fitted into the fitting gap can also effectively prevent dust or water vapor from entering the fitting gap corresponding to the detection board and interfering with the detection of the detection board, reducing the detection error.

[0009] In a preferred embodiment, a first installation groove extending vertically is provided on the outer side of the glass cup body to accommodate the detection section, and two ends of the positioning rib are respectively in abutting fit with two vertical groove walls of the first installation groove.

[0010] By arranging a first installation groove extending vertically on the outer side of the glass cup body to accommodate the detection section, the detection plate is positioned to prevent the detection plate from sliding along the peripheral wall of the glass cup body during installation, thereby improving the accuracy of the installation position of the detection plate and improving the detection accuracy, and making the installation more convenient; in addition, the two ends of the positioning rib are respectively abutted against the two groove walls of the first installation groove, and the isolation piece is further vertically limited by the abutment between the first installation groove and the positioning rib on the basis of the vertical limitation of the positioning rib, thereby forming a vertical double limitation, and the positioning of the isolation piece is more firmly secured, preventing the isolation piece from rising or twisting, thereby realizing reliable detection of the detection plate and facilitating the sealed docking of the isolation piece and the first installation groove.

[0011] In a preferred embodiment, both ends of the positioning rib are provided with extension portions extending upward along the groove wall of the first installation groove.

[0012] By providing the extension part, the extension part extends along the groove wall of the first installation groove, thereby forming a limit in the radial direction of the glass cup body with the first installation groove, realizing multi-directional limit between the glass cup body and the isolation piece, and positioning is more reliable. The extension part can also facilitate the installation worker to take the isolation piece.

[0013] In a preferred embodiment, the detection section is encapsulated by pouring glue into the first installation groove.

[0014] By pouring glue into the first mounting groove, the detection section and the glass cup body are encapsulated and fixed by the glue pouring layer, so as to achieve one-step fixing and sealing, simplify the fixing steps of the detection board, and reduce the installation cost of the detection board. Since the two ends of the positioning rib are respectively abutted with the two vertical groove walls of the first mounting groove, the isolation piece and the first mounting groove can be sealed and connected, and the glue liquid is prevented from flowing into the matching gap during the glue pouring process.

[0015] In a preferred embodiment, the isolating member is provided with a rib protruding from an edge of a side away from the mounting seat, and the rib encloses a second mounting groove for accommodating the signal processing section;

[0016] Alternatively, a third mounting groove for accommodating the signal processing section is provided on the outer side of the mounting seat, and the isolation member is located in the third mounting groove.

[0017] The isolating member forms a second mounting groove for accommodating the signal processing section through the surrounding ribs, so that the signal processing section can be positioned in the process of fixing the detection board, and the detection board can be prevented from sliding along the circumference of the mounting seat, which saves labor for assembly. When the glass cup body is provided with a first mounting groove and the isolating member is provided with a second mounting groove, the first mounting groove and the second mounting groove can be connected to form a glue injection groove to inject glue and fix the detection board, so as to achieve comprehensive sealing and fixation of the detection board.

[0018] The third mounting groove is provided on the outer side of the mounting base, and the spacer is located in the third mounting groove. Therefore, the third mounting groove not only positions the spacer but also positions the signal processing section. The structure is compact, preventing the detection board from sliding circumferentially along the mounting base during the installation process of the detection board, and at the same time achieving reliable positioning of the spacer and the mounting base. Additionally, when the glass cup body is provided with the first mounting groove and the mounting base is provided with the third mounting groove, the first mounting groove and the third mounting groove can be docked to form a potting groove for potting and fixing the detection board, realizing the full sealing and fixing of the detection board.

[0019] In a preferred embodiment, the first mounting groove is integrally formed on the glass cup body;

[0020] Alternatively, the liquid heater includes a positioning bracket fixed on the outer side of the glass cup body, and the positioning bracket and the glass cup body enclose to form the first mounting groove.

[0021] Whether the first mounting groove is integrally formed on the glass cup body or formed on the outer side of the glass cup body by additionally providing a positioning bracket, it can form a radial limit for the detection section of the detection board, preventing the detection board from sliding along the circumferential wall of the glass cup body, facilitating the accurate positioning of the detection board, with simple assembly and reduced installation costs.

[0022] In a preferred embodiment, a limiting structure is provided between the upper end of the mounting base and the spacer, and the positioning rib is clamped in the fitting gap during the installation process of the mounting base and the glass cup body;

[0023] By providing the limiting structure, the spacer can be pre-positioned on the mounting base through the limiting structure, so that the positioning rib is clamped in the fitting gap during the installation process of the mounting base and the glass cup body. The installation of the spacer is labor-saving, the installation steps are streamlined, and the positioning is reliable.

[0024] In a preferred embodiment, after the mounting base and the glass cup body are fixed, the positioning rib is inserted into the fitting gap.

[0025] By inserting the positioning rib into the fitting gap after the mounting base and the glass cup body are fixed, the vertical limit of the spacer and the fitting gap can be reliable, preventing the spacer from falling off, effectively isolating the heat of the heating plate by the spacer, and reducing the influence on the accuracy of the detection board.

[0026] In a preferred embodiment, the glass cup body includes a main body section and a contraction section that indents inward relative to the main body section. The mounting base is sleeved and fixed on the outer periphery of the contraction section. The main body section has a supporting surface for supporting the detection section, and the outer side surface of the spacer does not protrude beyond the supporting surface.

[0027] By sleeving the mounting base on the outer periphery of the contraction section, the contraction section retracts inward relative to the main body section, that is, the outer diameter of the mounting base is reduced. The main body section has a supporting surface for supporting the detection plate, and the outer side surface of the spacer does not protrude from the supporting surface, preventing the signal processing section at the lower part of the detection plate from being lifted, so that a good fitting effect is formed between the detection section and the main body section, thereby reducing the non-contact detection distance of the detection section, improving the detection sensitivity, and improving the detection accuracy.

[0028] In a preferred embodiment, the supporting surface is a supporting plane, the supporting plane is flush with the outer side surface of the spacer, and the signal processing section is supported on the outer side surface of the spacer.

[0029] By setting the supporting plane, the fitting degree between the detection section and the supporting plane is improved, so that the detection of the detection section is uniform and the detection accuracy is higher. The supporting plane is flush with the outer side surface of the spacer, and the supporting plane and the outer side surface of the spacer respectively support the detection section and the signal processing section, so that the detection plate can be fixedly arranged on the outer side of the glass cup body and the mounting base reliably.

[0030] In a preferred embodiment, the liquid heater further includes a mounting member fixed on the outer side of the glass cup body, and the mounting member presses the detection plate against the glass cup body.

[0031] By setting the mounting member, the detection plate is fixed by being pressed against the glass cup body through the mounting member. On the basis of reliable positioning, the detection plate can be in contact with the glass cup body, shortening the non-contact detection distance of the detection plate and improving the detection sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0033] Figure 1 It is a partial cross-sectional structure schematic diagram of the liquid heater in Embodiment 1 of the present invention;

[0034] Figure 2 It is an exploded structure schematic diagram of the liquid heater in Embodiment 1 of the present invention;

[0035] Figure 3 It is a structure schematic diagram of the spacer in Embodiment 1 of the present invention;

[0036] Figure 4 It is a structure schematic diagram of the liquid heater in Embodiment 1 of the present invention;

[0037] Figure 5Schematic diagram of the cooperation between the isolation member, the glass cup body and the mounting seat in Embodiment 1 of the present utility model;

[0038] Figure 6 Front schematic diagram of the detection board in Embodiment 1 of the present utility model;

[0039] Figure 7 Back schematic diagram of the detection board in Embodiment 1 of the present utility model.

[0040] Explanation of reference numerals: 10, glass cup body; 11, main body section; 12, contraction section; 20, heating plate; 30, mounting seat; 31, third mounting groove; 40, detection board; 41, detection section; 42, signal processing section; 43, anti-overflow capacitor electrode; 44, water level capacitor electrode; 45, processing chip; 50, isolation member; 51, positioning rib; 511, hook; 52, surrounding rib; 521, second mounting groove; 53, extension part; 70, first mounting groove; 80, fitting gap. Detailed implementation manners

[0041] In order to more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0042] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present utility model and the features in each embodiment can be combined with each other.

[0043] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0044] In the present utility model, unless otherwise clearly defined and limited, the terms "mount", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] 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.

[0046] like Figures 1-7 As shown, the utility model provides a liquid heater in one embodiment, including a glass cup body 10, a heating plate 20, a mounting seat 30 and a detection plate 40 for detecting the liquid level in the air, the glass cup body 10 is provided with a lower opening, the mounting seat 30 supports the heating plate 20 and is sleeved and fixed on the lower part of the glass cup body 10, so that the heating plate 20 closes the lower opening, and the glass cup body 10 is provided with a lower opening, and the heating plate 20 is provided with a ... Figure 2 An annular fitting gap 80 is formed between the mounting seat 30 and the outer wall of the glass cup body 10. The detection plate 40 includes a detection section 41 fixed to the outer wall of the glass cup body 10 and a signal processing section 42 connected below the detection section 41. The signal processing section 42 corresponds to the outer side of the mounting seat 30. The liquid heater also includes an isolation member 50. The isolation member 50 extends vertically along the outer wall of the mounting seat 30 to isolate the signal processing section 42 from the mounting seat 30. The isolation member 50 is provided with an elastic positioning rib 51 on the side facing the mounting seat 30. The positioning rib 51 is interference fit in the fitting gap 80.

[0047] A liquid heater provided by the present utility model utilizes a mounting base 30 to support a heating plate 20. The mounting base 30 is sleeved on the lower part of the glass cup body 10, thereby reliably fixing the heating plate 20 at the lower part of the glass cup body 10 to realize heating of the glass cup body 10, and an annular fitting gap is formed between the mounting base 30 and the outer wall of the glass cup body 10. Since the detection plate 40 includes a detection section 41 and a signal processing section 42 connected below the detection section 41, and the signal processing section 42 is correspondingly located outside the mounting base 30, the detection section 41 can extend downward along the height direction of the glass cup body 10 without having to avoid a handle in the traditional technology. Thus, the detection lower limit can be reduced, the detection blind area at the lower part of the glass cup body 10 can be decreased, and the detection range can be expanded. At the same time, the signal processing section 42 can be used to install a processing chip to process the detection signals of the capacitor electrodes on the detection section 41, and of course, capacitor electrodes for non-contact detection can be further installed on the basis of processing the signals to expand the detection, realizing comprehensive detection of the detection area. Further, since the mounting base 30 supports the heating plate 20, there will be direct heat conduction between the heating plate 20 and the mounting base 30. Correspondingly, the signal processing section 42 will also be affected by a large amount of heat from the heating plate 20. For example, structures such as the processing chip and wiring terminals on the signal processing section 42 will age after being continuously heated, and problems such as inaccurate detection caused by the slow processing speed of the processing chip will occur. Therefore, by providing an isolation member 50, the isolation member 50 extends vertically along the outer wall of the mounting base 30 to isolate the signal processing section 42 from the mounting base 30, which can reduce the influence of the operation of the heating plate 20 on the signal processing section 42, protect the signal processing section 42, extend the service life of the signal processing section 42, reduce the error generated by signal processing, improve the detection accuracy, and realize effective and reliable detection. Even further, the isolation member 50 is convexly provided with elastic positioning ribs 51 on the side facing the mounting base 30, and the positioning ribs 51 are press-fitted into the fitting gap. Therefore, the positioning of the isolation member 50 itself with the glass cup body 10 and the mounting base 30 is more firm, avoiding the detachment of the isolation member 50, preventing the isolation member 50 from shifting or twisting in position, which may cause a change in the detection position of the detection plate 40, and improving the detection accuracy. In addition, the positioning ribs 51 are press-fitted into the fitting gap, which can also effectively prevent dust or water vapor from entering the fitting gap corresponding to the detection plate 40 and interfering with the detection of the detection plate 40, reducing the detection error.

[0048] The present utility model does not limit the positioning method of the detection plate 40 with respect to the glass cup body 10. For example:

[0049] Embodiment 1, as Figures 1-7 shown, a first installation groove 70 extending vertically is provided on the outer side of the glass cup body 10 to accommodate the detection section 41, and both ends of the positioning rib 51 are in abutting fit with the two groove walls of the first installation groove 70 along the vertical direction.

[0050] Preferably, the detection section 41 and the glass cup body 10 are fixed through a potting layer formed by potting the first installation groove 70.

[0051] By providing a first installation groove 70 on the outer side of the glass cup body 10 that extends vertically to accommodate the detection section 41, positioning of the detection board 40 is achieved, preventing the detection board 40 from sliding along the circumferential wall of the glass cup body 10 during installation, improving the accuracy of the installation position of the detection board 40 to enhance the detection accuracy, and making the installation more convenient; in addition, both ends of the positioning rib 51 are in abutting cooperation with the two groove walls of the first installation groove 70. On the basis of the vertical limit of the isolation member 50 by the positioning rib 51, further vertical limit is achieved through the abutment of the first installation groove 70 and the positioning rib 51, forming a double vertical limit, making the positioning of the isolation member 50 more secure, preventing the isolation member 50 from moving up or being distorted, enabling reliable detection of the detection board 40, and at the same time facilitating the sealed docking of the isolation member 50 and the first installation groove 70. By potting the first installation groove 70, the detection section 41 and the glass cup body 10 are fixed through the potting layer, achieving one-step fixation and sealing, simplifying the fixation steps of the detection board 40, reducing the installation cost of the detection board 40. Since both ends of the positioning rib 51 are in abutting cooperation with the two groove walls of the first installation groove 70 along the vertical direction, sealed docking of the isolation member 50 and the first installation groove 70 can be realized, preventing the glue from flowing into the mating gap during the potting process.

[0052] In this embodiment, as Figure 3 、 4 shown, the shape of the isolation member 50 can be selected such that both ends of the positioning rib 51 are provided with extension portions 53 that extend upward along the groove wall of the first installation groove 70.

[0053] By providing the extension portions, the extension portions extend along the groove wall of the first installation groove 70, thereby forming a limit along the radial direction of the glass cup body 10 with the first installation groove 70, achieving multi-directional limit between the glass cup body 10 and the isolation member 50, and making the positioning more reliable. The extension portions can also facilitate the installer to pick up the isolation member 50. In addition, in this embodiment, the cooperation between the extension portions and the first installation groove 70 further prevents the glue from flowing out of the first installation groove 70.

[0054] In this embodiment, more preferably, as Figures 1-4 shown, a surrounding rib 52 protrudes from the edge of the isolation member 50 on the side away from the mounting base 30, and the surrounding rib 52 encloses a second installation groove 521 for accommodating the signal processing section 42.

[0055] More preferably, as Figure 2 shown, a third installation groove 31 for accommodating the signal processing section 42 is provided on the outer side of the mounting base 30, and the isolation member 50 is located within the third installation groove 31.

[0056] In this embodiment, the spacer 50 forms a second mounting groove 521 for accommodating the signal processing section 42 through the rib 52, which can achieve the positioning of the signal processing section 42 during the process of fixing the detection plate 40, avoid the detection plate 40 from sliding along the circumferential direction of the mounting base 30, and make the assembly labor-saving. In this embodiment, combined with Figure 4 , the glass cup body 10 is provided with a first mounting groove 70, and the spacer 50 is provided with a second mounting groove 521. The first mounting groove 70 and the second mounting groove 521 can be docked to form a potting groove for potting and fixing the detection plate 40, so as to achieve the full sealing and fixing of the detection plate 40. Specifically, in this embodiment, the second mounting groove 521 on the spacer 50 is used to accommodate the signal processing section 42 and allow the glue to be poured in, and the third mounting groove 31 is used to limit the spacer 50.

[0057] Of course, in this embodiment, the third mounting groove 31 can also be omitted on the outside of the mounting base 30, and only the second mounting groove 521 is used to enclose the glue. In addition, in fact, for the convenience of potting, only one of the spacer 50 and the mounting base 30 needs to be provided with a mounting groove to accommodate the glue and the detection plate 40. Refer to Embodiment 2.

[0058] It should be noted that the above form of the spacer 50 is still applicable to other embodiments of the present invention, and the form of the spacer 50 provided by the present invention is not limited to the above one. For example, in other preferred embodiments, the two ends of the positioning rib 51 are not provided with extension parts, and only the rib 52 is provided on one side to form the above-mentioned second mounting groove 521.

[0059] In addition, the present invention does not limit the forming method of the first mounting groove 70. For example, in this embodiment, the first mounting groove 70 is integrally formed on the glass cup body 10. Specifically, a vertical rib is integrally protruded from the outer wall of the glass cup body 10, and the rib encloses to form the first mounting groove 70. Of course, the first mounting groove 70 can also be formed by the depression of the peripheral wall of the glass cup body 10. Or, in other embodiments, the liquid heater includes a positioning bracket fixed outside the glass cup body 10, and the positioning bracket and the glass cup body 10 enclose to form the first mounting groove 70.

[0060] Whether the first mounting groove 70 is integrally formed on the glass cup body 10 or formed outside the glass cup body 10 by another positioning bracket, it can form a radial limit on the detection section 41 of the detection plate 40, avoid the detection plate 40 from sliding along the peripheral wall of the glass cup body 10, facilitate the accurate positioning of the detection plate 40, simplify the assembly, and reduce the installation cost.

[0061] Embodiment Example 2, different from Embodiment Example 1, in this embodiment example, the body of the spacer 50 is a silicone sheet and there is no peripheral rib 52 at the edge. A third mounting groove 31 is provided on the outer side of the mounting seat 30. The sheet-shaped spacer 50 is placed in the third mounting groove 31 and is pressed by the signal processing section 42 of the detection board 40. The third mounting groove 31 and the first mounting groove 70 are butted to form a potting groove, and the detection board 40 is encapsulated by potting the potting groove.

[0062] By providing the third mounting groove 31 on the outer side of the mounting seat 30 and the spacer 50 being located in the third mounting groove 31, therefore, the third mounting groove 31 not only positions the spacer 50 but also positions the signal processing section 42 at the same time. The structure is compact, avoiding the detection board 40 from sliding along the circumferential direction of the mounting seat 30 during the installation process of the detection board 40, and at the same time realizing the reliable positioning of the spacer 50 and the mounting seat 30. In addition, in this embodiment example, the glass cup body 10 is provided with the first mounting groove 70, and the mounting seat 30 is provided with the third mounting groove 31. The first mounting groove 70 and the third mounting groove 31 can be butted to form a potting groove to pot and fix the detection board 40, realizing the full sealing and fixing of the detection board 40.

[0063] The present utility model does not limit the specific structure of the detection board 40. For example:

[0064] In Embodiment Example 1, as Figure 6 、 7 shown, the detection board 40 includes a detection section 41 and a signal processing section 42 connected below the detection section 41. As Figure 6 shown, on the front surface of the detection section 41, capacitive electrode plates are provided. The capacitive electrode plates include a plurality of anti-overflow capacitive electrode plates 43 and a plurality of water level capacitive electrode plates 44 located below the anti-overflow capacitive electrode plates. As Figure 7 shown, on the back surface of the signal processing section 42, a processing chip 45 is provided, and the capacitive electrode plates are electrically connected to the processing chip.

[0065] By providing a plurality of anti-overflow capacitive electrode plates and a plurality of water level capacitive electrode plates, it is possible to select the corresponding anti-overflow capacitive electrode plates for anti-overflow detection corresponding to different pulp-making capacity scenarios, making the anti-overflow detection sensitive.

[0066] Of course, in other embodiment examples, on the basis of Embodiment Example 1, capacitive electrode plates are provided on the front surface of the signal processing section 42, and the capacitive electrode plates are water level capacitive electrode plates; or, in other embodiment examples, capacitive electrode plates are provided on the detection section 41, and the capacitive electrode plates include a water level capacitive electrode plate and an anti-overflow capacitive electrode plate. The above-mentioned structure of the detection board 40 can be optionally applied to other embodiments of the present utility model.

[0067] It should be noted that the present utility model does not limit the installation sequence of the spacer 50 and the mounting seat 30. For example:

[0068] Embodiment Example 3, in combination with Figure 5 As shown, a limiting structure is provided between the upper end of the mounting base 30 and the spacer 50, and during the installation of the mounting base 30 and the glass cup body 10, the clamping positioning rib 51 is held in the fitting gap;

[0069] By providing the limiting structure, the spacer 50 can be pre-positioned on the mounting base 30 through the limiting structure, so that during the installation of the mounting base 30 and the glass cup body 10, the clamping positioning rib 51 is held in the fitting gap. The installation of the spacer 50 is labor-saving, the installation steps are streamlined, and the positioning is reliable.

[0070] Specifically, as Figure 5 shown, the limiting structure is a hook 511 provided at the inner end of the positioning rib 51, and the hook is hooked on the top end of the side wall of the mounting base 30. The mounting base 30 and the glass cup body 10 are fixed by means of screwing, buckling, threading, bonding, etc. The spacer 50 is hooked on the mounting base 30 through the hook and is fixed to the lower part of the glass cup body 10 along with the mounting base 30.

[0071] Of course, the limiting structure is not limited to the above one. For example, the limiting structure is a notch provided at the upper end of the mounting base 30 and recessed downward, and the positioning rib 51 is clamped in the notch.

[0072] Embodiment Example 4, the difference between this embodiment example and Embodiment Example 3 is that the spacer 50 is installed later. After the mounting base 30 and the glass cup body 10 are fixed, the positioning rib 51 is inserted into the fitting gap.

[0073] By inserting the positioning rib 51 into the fitting gap after the mounting base 30 and the glass cup body 10 are fixed, the vertical limiting of the spacer 50 and the fitting gap can be reliable, the spacer 50 can be prevented from falling off, and the spacer 50 can effectively isolate the heat of the heating plate 20 and reduce the influence on the accuracy of the detection plate 40.

[0074] In addition, it should be noted that the present utility model does not limit the shape of the glass cup body 10. For example:

[0075] Embodiment Example 5, referring to Figure 1 , in this embodiment example, the glass cup body 10 includes a main body section 11 and a contraction section 12 that is recessed inward relative to the main body section 11. The mounting base 30 is sleeved and fixed on the outer periphery of the contraction section 12. The main body section 11 has a support surface for supporting the detection section 41, and the outer side surface of the spacer 50 does not protrude from the support surface.

[0076] More preferably, the support surface is a support plane, the support plane is flush with the outer side surface of the spacer 50, and the signal processing section 42 is supported on the outer side surface of the spacer 50.

[0077] Of course, in practice, in other embodiments, the supporting surface can be an arc-shaped wall protruding outward from the glass cup body 10 or an arc-shaped wall recessed inward. By sleeving the mounting seat 30 on the outer periphery of the contraction section 12, the contraction section 12 retracts inward relative to the main body section 11, that is, the outer diameter of the mounting seat 30 is reduced. The main body section 11 has a supporting surface for supporting the detection plate 40, and the outer side surface of the spacer 50 does not protrude from the supporting surface, preventing the signal processing section 42 at the lower part of the detection plate 40 from being lifted, so as to form a good fitting effect between the detection section 41 and the main body section 11, thereby reducing the non-contact detection distance of the detection section 41 and improving the detection sensitivity and accuracy. By setting the supporting plane, the fitting degree between the detection section 41 and the supporting plane is improved, so that the detection of the detection section 41 is uniform and the detection accuracy is higher. The supporting plane is flush with the outer side surface of the spacer 50, and the supporting plane and the outer side surface of the spacer 50 respectively support the detection section 41 and the signal processing section 42, so that the detection plate 40 can be fixedly arranged flatly on the outer sides of the glass cup body 10 and the mounting seat 30, and the positioning is reliable.

[0078] Of course, the fixing method of the detection plate 40 in the present utility model is not limited to the glue filling fixing method in Embodiment 1. In fact, the detection plate 40 can also be fixed by other methods. For example, the liquid heater further includes a mounting member fixed on the outer side of the glass cup body 10, and the mounting member presses the detection plate 40 against the glass cup body 10. Preferably, the mounting member shields the detection plate 40 to hide it for installation. The mounting member can be a mounting cover, a handle, or a housing sleeved on the outer side of the glass cup body 10.

[0079] By setting the mounting member, the detection plate 40 is fixed by being pressed against the glass cup body 10 by the mounting member. On the basis of reliable positioning, the detection plate 40 can be in contact with the glass cup body 10, shortening the non-contact detection distance of the detection plate 40 and improving the detection sensitivity.

[0080] In addition, the structure of the liquid heater in the present utility model is not limited. For example, in Embodiment 1, the liquid heater is a heating cup assembly for a food processor. The food processor further includes a main body provided with a receiving cavity for installing the heating cup assembly. The heating cup assembly further includes a crushing knife arranged in the glass cup body 10, and the main body is provided with a motor located below the heating cup assembly to drive the crushing knife.

[0081] Of course, the liquid heater can also be a soymilk machine with the head placed on top, a food processor with the cup body and the main body fixed together, a wall breaker with the cup body and the main body separated, a health kettle, a boiling water pot, etc.

[0082] What is not described in the present utility model can be realized by adopting or referring to the existing technologies.

[0083] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0084] The above are only the embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A liquid heater, comprising a glass body, a heating plate, a mounting seat and a detection plate for detecting liquid level in the air, wherein the glass body is provided with a lower opening, the mounting seat supports the heating plate and is sleeved and fixed to the lower part of the glass body so that the heating plate closes the lower opening, and an annular matching gap is formed between the mounting seat and the outer wall of the glass body, characterized in that: The detection plate includes a detection section fixed on the outer wall of the glass cup body and a signal processing section connected below the detection section, and the signal processing section corresponds to the outer side of the mounting seat. The liquid heater also includes an isolation member, which extends vertically along the outer wall of the mounting seat to isolate the signal processing section from the mounting seat. The isolation member is provided with an elastic positioning rib protruding on the side facing the mounting seat, and the positioning rib is interference fit in the fitting gap.

2. A liquid heater according to claim 1, characterized in that: A first installation groove extending vertically to accommodate the detection section is disposed on the outer side of the glass body, and two ends of the positioning rib are respectively abutted and matched with two groove walls of the first installation groove along the vertical direction.

3. A liquid heater according to claim 2, characterized in that: Both ends of the positioning rib are provided with extension portions extending upward along the groove wall of the first installation groove.

4. A liquid heater according to claim 2, characterized in that: The detection section is encapsulated by pouring glue into the first installation groove.

5. A liquid heater according to claim 2, characterized in that: The first mounting groove is integrally formed on the glass body; Alternatively, the liquid heater includes a positioning bracket fixed to the outside of the glass body, and the positioning bracket and the glass body are combined to form the first installation groove.

6. A liquid heater according to claim 1 or 2, characterized in that: The isolating member is provided with a rib protruding from an edge of a side away from the mounting seat, and the rib encloses a second mounting groove for accommodating the signal processing section; Alternatively, a third mounting groove for accommodating the signal processing section is provided on the outer side of the mounting seat, and the isolation member is located in the third mounting groove.

7. The liquid heater according to claim 1, characterized in that: A limiting structure is provided between the upper end of the mounting seat and the isolating member, and the positioning rib is clamped in the matching gap during the mounting process of the mounting seat and the glass cup body; Alternatively, after the mounting seat is fixed to the glass body, the positioning rib is inserted into the matching gap.

8. The liquid heater according to claim 1, characterized in that: The glass cup body includes a main body section and a contraction section indented inwardly relative to the main body section, the mounting seat is sleeved and fixed on the outer periphery of the contraction section, the main body section has a supporting surface for supporting the detection section, and the outer side surface of the isolation piece does not protrude from the supporting surface.

9. A liquid heater according to claim 8, characterized in that: The support surface is a support plane, and the support plane is flush with the outer side surface of the isolation element.

10. The liquid heater according to claim 1, characterized in that: The liquid heater further comprises a mounting member fixed on the outside of the glass body, and the mounting member presses the detection plate against the glass body.

Images