Liquid heater

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly relates to a liquid heater. Comprising a glass cup body and a detection plate used for detecting the liquid level across the air, a vertically-extending positioning groove is formed in the outer side of the glass cup body, the detection plate is in a strip shape and is vertically positioned in the positioning groove, the detection plate divides the positioning groove into an inner cavity close to the side of the glass cup body and an outer cavity away from the side of the glass cup body, and a glue passing groove is formed in the detection plate in a penetrating mode; the equivalent width W of the glue passing groove is larger than or equal to 1 mm, the inner cavity is communicated with the outer cavity through the glue passing groove, and glue is poured into the positioning groove, so that the inner cavity and the outer cavity are filled with glue liquid through the glue passing groove, and the detection plate is packaged. The glue passing groove is formed in the detection plate, the glue liquid flows through the glue passing groove to fully fill the inner cavity and the outer cavity, the two sides of the detection plate can be wrapped by the glue liquid more comprehensively, the sealing effect and the fixing reliability of the detection plate are improved, and the detection accuracy is improved.

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, the current anti-overflow detection method for kitchen appliances is mainly the detection by an air-spaced detection board. The detection board is arranged on the outer wall of the glass cup body. The detection board is provided with capacitive electrode plates for remotely sensing the liquid level in the cup body and a processing chip electrically connected to the capacitive electrode plates to achieve anti-overflow detection.

[0003] In order to make the detection board have a relatively better positioning relationship with the cup body. The applicant previously filed a patent application with the application number CN201720526032.4. In this patent, the capacitive induction board is positioned on the outer side wall of the glass cup through the handle shell. Among them, during the installation process, two symmetrically and oppositely joined and fixed handle covers need to clamp the handle while clamping the capacitive induction board, so as to realize the positioning of the capacitive induction board while fixing the handle shell, ensuring the relative position relationship between the capacitive induction board and the glass cup body. Although in this scheme, the capacitive induction board and the glass cup body are in a relatively fixed relationship and there is no displacement between them, in this structure, a handle needs to be provided on the glass cup body to position the handle shell, and then the capacitive induction board is fixed and limited through the positioning of the handle shell. Not only is the installation structure complex, but when there is an assembly error between the handle shell and the handle, it will cause the problem that the capacitive induction board detects inaccurate liquid level signals. Moreover, currently, a large number of food processors or health kettles use tubular glass, and it is impossible to integrally form a handle structure on the glass cup body. Therefore, the above scheme is not applicable to tubular glass cup bodies. Moreover, the induction board is a rigid board, while the peripheral wall of the glass cup body is generally arc-shaped. How to reliably and accurately position and install the rigid liquid level detection board on the outer wall of the arc-shaped glass cup has always been a difficulty for R & D engineers to apply the remote detection technology to the liquid level detection of kitchen appliances.

[0004] After more in-depth research, the applicant also previously filed an application with the application number CN2024103319154, which uses a positioning board to position the detection board on the outer wall of the glass cup body. An accommodation cavity for accommodating the detection board is formed by enclosing the positioning board and the peripheral wall of the glass cup body, and glue is poured into the accommodation cavity to achieve reliable installation of the detection board, effectively solving the problem of reliably and accurately fixing the detection board to the outer wall of the curved glass cup. Of course, the applicant is still continuously researching on how to facilitate the positioning of the detection board and optimize the glue pouring process. Summary of the Utility Model

[0005] The utility model provides a liquid heater to solve the problem that after the detection plate is installed on the side wall of the glass body in the existing liquid heater, the detection accuracy of the detection plate is affected by the generation of condensed water in the gap formed between the detection plate and the glass body.

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

[0007] The utility model provides a liquid heater, comprising a glass cup body and a detection plate for detecting liquid level in the air, wherein a vertically extending positioning groove is arranged on the outer side of the glass cup body, the detection plate is strip-shaped and vertically positioned in the positioning groove, and the detection plate divides the positioning groove into an inner chamber close to one side of the glass cup body and an outer chamber away from one side of the glass cup body, a glue groove is arranged through the detection plate, and the equivalent width W of the glue groove is ≥1mm, the inner chamber is connected with the outer chamber through the glue groove, and glue is poured into the positioning groove so that the glue liquid is filled into the inner chamber and the outer chamber through the glue groove to encapsulate the detection plate.

[0008] The utility model provides a liquid heater, by arranging a vertically extending positioning groove on the outer side of the glass cup body, so that the detection plate can be reliably positioned on the glass cup body to prevent the detection plate from sliding, and the detection plate divides the positioning groove into an inner chamber close to the side of the glass cup body and an outer chamber away from the side of the glass cup body, and a glue groove is arranged through the detection plate, and the inner chamber is connected with the outer chamber through the glue groove. Therefore, by pouring glue into the positioning groove, the glue liquid is filled into the inner chamber and the outer chamber through the glue groove to encapsulate the detection plate, and the glue liquid is arranged on The glue groove on the detection board is circulated to fully fill the inner cavity and the outer cavity, so that both sides of the detection board can be more fully wrapped by glue, and the glue adhesion is more comprehensive, which prevents the appearance of bubbles and cavities after glue filling, and avoids the situation where condensed water enters the cavity and affects the accurate detection of the detection board, thereby improving the sealing effect and fixing reliability of the detection board and improving the detection accuracy. Moreover, the equivalent width W of the glue groove is ≥1mm, so that the glue can flow smoothly through the glue groove, the glue flow is smoother, the glue filling is fast, and the packaging of the entire detection board is realized, ensuring the reliability of the positioning and fixation of the detection board.

[0009] In a preferred embodiment, the glue groove is arranged adjacent to the edge of the detection plate, and the distance L between the glue groove and the edge of the detection plate is ≤5 mm.

[0010] By setting the glue application tank adjacent to the edge of the detection board, sufficient space can be reserved in the middle of the detection board to install structures such as capacitor electrodes, processing chips, and wiring while ensuring smooth glue flow, realizing rational utilization of the space of the detection board. The distance L between the glue application tank and the edge of the detection board is L≤5mm, which can avoid a large amount of space waste at the edge of the detection board, facilitate the structural compactness of the detection board and reduce the volume of the detection board.

[0011] In a preferred embodiment, the glue application tank extends in a strip shape vertically or horizontally.

[0012] The glue application tank extends in a strip shape vertically or horizontally. Thus, on the premise of limited space of the strip-shaped detection board, the space of the detection board can be rationally utilized, making the overall volume of the detection board compact, while improving the smoothness of glue flow, facilitating the rapid filling of the inner chamber and outer chamber with glue, and realizing the full encapsulation, reliable fixation and sealing of the detection board.

[0013] In a preferred embodiment, the detection board is provided with a plurality of capacitor electrodes arranged at vertical intervals, and the glue application tank is arranged between two adjacent capacitor electrodes.

[0014] The detection board is provided with a plurality of capacitor electrodes arranged at vertical intervals to realize the corresponding detection of the liquid levels at different heights of the corresponding glass cup body, expand the detection range, and make the detection more comprehensive. By arranging the glue application tank between two adjacent capacitor electrodes, the isolation space between adjacent capacitor electrodes can be just used to arrange the glue application tank, with reasonable space utilization. The detection board does not need to provide an additional area for arranging the glue application tank, which is convenient for the miniaturization design of the detection board.

[0015] In a preferred embodiment, the detection board is provided with a plurality of capacitor electrodes arranged at vertical intervals, and the glue application tank divides a single capacitor electrode into two sub-electrodes.

[0016] By using the glue application tank to divide a single capacitor electrode into two sub-electrodes, the two sub-electrodes can be used to detect and calibrate the liquid at the same height respectively, improving the detection accuracy. Especially in a detection environment with high requirements for detection sensitivity such as foam, the superimposed detection of multiple sub-electrodes can be realized, and the detection result is more reliable.

[0017] In a preferred embodiment, the glue application tank extends obliquely relative to the detection board in a straight strip shape;

[0018] Alternatively, the glue application tank extends in a curved shape along the vertical direction of the detection board.

[0019] Whether the glue application tank is in a straight strip shape or a curved shape, it can divide the capacitor electrode into two parts, realizing double detection at the same liquid level height, improving the detection accuracy, and ensuring the sensitive detection of the detection signal.

[0020] In a preferred embodiment, the peripheral wall of the glass cup body is a curved surface protruding outward, the detection plate abuts against the peripheral wall of the glass cup body, the inner cavity includes a first inner cavity and a second inner cavity, and the glue application groove includes a first glue application groove communicating with the first inner cavity and a second glue application groove communicating with the second inner cavity.

[0021] By abutting the detection plate against the peripheral wall of the glass cup body, the distance between the detection plate and the liquid in the glass cup body is reduced, the detection distance of the detection plate is shortened, and the detection sensitivity of the detection plate is improved. The inner cavity includes a first inner cavity and a second inner cavity, and the glue application groove includes a first glue application groove communicating with the first inner cavity and a second glue application groove communicating with the second inner cavity, so that the glue liquid can fill the first inner cavity and the second inner cavity, further realizing the reliable fixation and comprehensive sealing of the detection plate.

[0022] In a preferred embodiment, a positioning rib inserted into the glue application groove is fixedly arranged on the outer side of the glass cup body, and a glue application gap is formed between the positioning rib and the groove wall of the glue application groove.

[0023] By arranging the positioning rib on the outer side of the glass cup body, the positioning rib is inserted into the glue application groove to be limited with the glue application groove, so that the detection plate can be pre-positioned by means of the positioning rib and the glue application groove. A glue application gap is formed between the positioning rib and the groove wall of the glue application groove. The glue application groove not only serves as a passage for the glue liquid to flow, but also serves as a pre-positioning for the detection plate, facilitating the precise installation of the detection plate and achieving multiple effects. The detection plate has a simple and reliable structure.

[0024] In a preferred embodiment, the liquid heater further includes a mounting bracket fixed outside the peripheral wall of the glass cup body. The mounting bracket is provided with a surrounding edge closely fitted with the peripheral wall of the glass cup body, and the surrounding edge encloses to form the positioning groove. The positioning rib is integrally arranged on the mounting bracket.

[0025] In a preferred embodiment, the positioning groove is formed by a depression on the outer surface of the peripheral wall of the glass cup body;

[0026] Alternatively, a rib is integrally protruded on the outer surface of the peripheral wall of the glass cup body, and the rib encloses to form the positioning groove;

[0027] Alternatively, a mounting bracket is fixed on the outer side of the peripheral wall of the glass cup body. The mounting bracket is provided with a surrounding edge closely fitted with the peripheral wall of the glass cup body, and the surrounding edge encloses to form the positioning groove.

[0028] Whether the positioning groove is defined by the mounting bracket or integrally formed by the peripheral wall of the glass cup body, reliable pre-positioning of the detection plate can be achieved, so as to encapsulate the detection plate by pouring glue and realize the convenient installation of the detection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0030] Figure 1 Explosion structure schematic diagram of the liquid heater in Embodiment 1 of the present utility model;

[0031] Figure 2 Longitudinal sectional structure schematic diagram of the liquid heater in Embodiment 1 of the present utility model;

[0032] Figure 3 Transverse sectional schematic diagram of the partial structure of the liquid heater in Embodiment 1 of the present utility model;

[0033] Figure 4 Structure schematic diagram of the detection board in Embodiment 1 of the present utility model;

[0034] Figure 5 Structure schematic diagram of the detection board in Embodiment 2 of the present utility model;

[0035] Figure 6 Structure schematic diagram of the liquid heater in Embodiment 3 of the present utility model;

[0036] Figure 7 Structure schematic diagram of the detection board in Embodiment 3 of the present utility model;

[0037] Figure 8 Structure schematic diagram of the detection board in Embodiment 4 of the present utility model.

[0038] Explanation of reference numerals:

[0039] 10, glass cup body; 20, detection board; 21, laminating groove; 211, first laminating groove; 212, second laminating groove; 22, capacitor electrode plate; 221, anti-overflow capacitor electrode plate; 222, water level capacitor electrode plate; 30, positioning groove; 31, inner cavity; 311, first inner cavity; 312, second inner cavity; 32, outer cavity; 40, mounting bracket; 50, handle. Detailed implementation manners

[0040] In order to more clearly illustrate the overall concept of the present utility model, the following is a detailed description by way of example in conjunction with the accompanying drawings of the specification.

[0041] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the scope of protection 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 may be combined with each other.

[0042] 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 thus should not be construed as a limitation to the present utility model.

[0043] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may 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 may be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" 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", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0045] Such as Figure 1-4As shown, the utility model provides a liquid heater in one embodiment, including a glass cup body 10 and a detection plate 20 for detecting liquid level in the air, a vertically extending positioning groove 30 is arranged on the outer side of the glass cup body 10, the detection plate 20 is strip-shaped and vertically positioned in the positioning groove 30, the detection plate 20 divides the positioning groove 30 into an inner chamber 31 close to the side of the glass cup body 10 and an outer chamber 32 away from the side of the glass cup body 10, a glue groove 21 is arranged through the detection plate 20, the equivalent width W of the glue groove 21 is ≥1mm, the inner chamber 31 is connected with the outer chamber 32 through the glue groove 21, and the positioning groove 30 is filled with glue so that the glue liquid is filled into the inner chamber 31 and the outer chamber 32 through the glue groove 21 to encapsulate the detection plate 20.

[0046] A liquid heater provided in this embodiment provides a vertically extending positioning groove 30 on the outer side of the glass cup body 10, so that the detection plate 20 can be reliably positioned on the glass cup body 10 to prevent the detection plate 20 from sliding. The detection plate 20 divides the positioning groove 30 into an inner chamber 31 close to the side of the glass cup body 10 and an outer chamber 32 away from the side of the glass cup body 10. A glue groove 21 is provided through the detection plate 20, and the inner chamber 31 is connected to the outer chamber 32 through the glue groove 21. Therefore, by pouring glue into the positioning groove 30, the glue is filled into the inner chamber 31 and the outer chamber 32 through the glue groove 21 to encapsulate the detection plate 20, and the glue is provided The glue groove 21 on the detection board 20 circulates to fully fill the inner cavity 31 and the outer cavity 32, so that both sides of the detection board 20 can be more fully wrapped by glue, and the glue adhesion is more comprehensive, which prevents the appearance of bubbles and cavities after glue filling, and avoids the situation where condensed water enters the cavity and affects the accurate detection of the detection board 20, thereby improving the sealing effect and fixing reliability of the detection board 20 and improving the detection accuracy. Moreover, the equivalent width W of the glue groove 21 is ≥1mm, so that the glue can flow smoothly through the glue groove 21, the glue flow is smoother, the glue filling is fast, and the packaging of the entire detection board 20 is achieved, ensuring the reliability of positioning and fixing of the detection board 20.

[0047] It should be noted that the present invention does not limit the location and shape of the glue groove 21. For example:

[0048] Implementation example 1, such as Figure 1-4 As shown, the glue groove 21 is arranged near the edge of the detection plate 20 , and the distance between the glue groove 21 and the edge of the detection plate 20 is 0<L≤5mm.

[0049] Optionally, in this embodiment or other embodiments, the glue groove 21 extends vertically or horizontally into a strip shape. Figure 4 As shown, in this embodiment, the glue groove 21 extends vertically into a strip shape.

[0050] By arranging the laminating groove 21 adjacent to the edge of the detection board 20, on the premise of achieving smooth glue running, sufficient space is reserved in the middle of the detection board 20 to install structures such as capacitive electrode sheets 22, processing chips, and wiring, realizing the rational utilization of the space of the detection board 20. The distance L between the laminating groove 21 and the edge of the detection board 20 is ≤ 5 mm, avoiding a large amount of space waste at the edge of the detection board 20, facilitating the structural compactness of the detection board 20 and reducing the volume of the detection board 20. The laminating groove 21 extends in a strip shape along the vertical or horizontal direction, so as to rationally utilize the space of the strip-shaped detection board 20 on the premise of limited space of the detection board 20, making the overall volume of the detection board 20 compact, while improving the smoothness of glue running, facilitating the rapid filling of the inner cavity 31 and the outer cavity 32 with glue, and realizing the full encapsulation, reliable fixation and sealing of the detection board 20.

[0051] It should be noted that the present utility model does not limit the shape of the glass cup body 10. For example, in this embodiment, preferably, as Figure 3 shown, the peripheral wall of the glass cup body 10 is a curved surface protruding outward, the detection board 20 abuts against the peripheral wall of the glass cup body 10, the inner cavity 31 includes a first inner cavity 311 and a second inner cavity 312, and the laminating groove 21 includes a first laminating groove 211 communicating with the first inner cavity 311 and a second laminating groove 212 communicating with the second inner cavity 312.

[0052] By abutting the detection board 20 against the peripheral wall of the glass cup body 10, the distance between the detection board 20 and the liquid in the glass cup body 10 is reduced, the detection distance of the detection board 20 is shortened, and the detection sensitivity of the detection board 20 is improved. The inner cavity 31 includes a first inner cavity 311 and a second inner cavity 312, and the laminating groove 21 includes a first laminating groove 211 communicating with the first inner cavity 311 and a second laminating groove 212 communicating with the second inner cavity 312, so that the glue can fill the first inner cavity 311 and the second inner cavity 312, further realizing the reliable fixation and full sealing of the detection board 20.

[0053] In addition, the present utility model does not limit the formation method of the laminating groove 21. For example, in this embodiment, as Figure 1 shown, a mounting bracket 40 is fixed on the outer side of the peripheral wall of the glass cup body 10. The mounting bracket 40 is provided with a surrounding edge that closely fits the peripheral wall of the glass cup body 10, and the surrounding edge encloses a positioning groove 30. The mounting bracket 40 and the glass cup body 10 can be fixedly connected by a handle 50. Of course, an adhesive can also be provided on the mounting bracket 40, and the adhesive is adhesively fixed to the glass cup body 10, etc.

[0054] Actually, in other preferred embodiments, the positioning groove 30 can be formed by a depression on the outer surface of the peripheral wall of the glass cup body 10; or, a rib is integrally protruded on the outer surface of the peripheral wall of the glass cup body 10, and the rib encloses a positioning groove 30.

[0055] Whether the positioning groove 30 is defined by the mounting bracket 40 or integrally formed on the peripheral wall of the glass cup body 10, reliable pre-positioning of the detection board 20 can be achieved, so as to encapsulate the detection board 20 by potting and realize the convenient installation of the detection board 20. The above-mentioned forming method of the positioning groove 30 can be applied to other implementation examples.

[0056] In this implementation example, preferably, a positioning rib inserted into the potting groove 21 is fixedly arranged on the outer side of the glass cup body 10, and a potting gap is formed between the positioning rib and the groove wall of the potting groove 21. Preferably, the positioning rib is integrally arranged on the mounting bracket 40. For example, the mounting bracket 40 is provided with a pressing portion pressing on the outer side of the detection board, and a positioning rib protrudes from the side of the pressing portion facing the detection board, and the positioning rib passes through the potting groove on the detection board to realize the pre-positioning of the detection board.

[0057] By arranging the positioning rib on the outer side of the glass cup body 10, the positioning rib is inserted into the potting groove 21 to realize limiting with the potting groove 21, so that the detection board 20 can be pre-positioned by means of the positioning rib and the potting groove 21. A potting gap is formed between the positioning rib and the groove wall of the potting groove 21. The potting groove 21 not only plays a role in supplying the glue liquid to flow, but also plays a role in pre-positioning the detection board 20, so as to facilitate the precise installation of the detection board 20, achieve multiple effects, and the structure of the detection board 20 is simple and reliable.

[0058] Implementation example 2, as Figure 5 shown, different from Implementation example 1, the detection board 20 is provided with a plurality of capacitor electrodes 22 arranged at intervals in the vertical direction, and the potting groove 21 is arranged between two adjacent capacitor electrodes 22. Optionally, the potting groove 21 extends horizontally in a strip shape or a curved shape.

[0059] Among them, the capacitor electrode is a water level capacitor electrode or an anti-overflow capacitor electrode; or, the capacitor electrode includes a water level capacitor electrode and an anti-overflow capacitor electrode arranged above the water level capacitor electrode.

[0060] The detection board 20 is provided with a plurality of capacitor electrodes 22 arranged at intervals in the vertical direction to realize the corresponding detection of the liquid levels at different heights of the corresponding glass cup body 10, expand the detection range, and make the detection more comprehensive. By arranging the potting groove 21 between two adjacent capacitor electrodes 22, the potting groove 21 can just be arranged by using the isolation space between the adjacent capacitor electrodes 22, the space is utilized reasonably, and the detection board 20 does not need to provide an additional area for arranging the potting groove 21, which is convenient for the miniaturized design of the detection board 20.

[0061] Implementation example 3, as Figure 6 、 7As shown, different from Embodiment 1, the positioning groove 30 is formed by the depression of the outer surface of the peripheral wall of the glass cup body 10. And in this embodiment, the detection plate 20 is provided with a plurality of capacitor electrodes 22 arranged at intervals in the vertical direction, and the glue application groove 21 divides a single capacitor electrode 22 into two sub-electrodes; more preferably, the glue application groove 21 extends obliquely relative to the detection plate 20 as a linear strip.

[0062] Combined with Figure 7 As shown, the capacitor electrode 22 includes a plurality of anti-overflow capacitor electrodes 221 and a plurality of water level capacitor electrodes 222 located below the plurality of anti-overflow capacitor electrodes 221. Different anti-overflow capacitor electrodes 221 realize the anti-overflow detection in the preparation process of different capacities. In this embodiment, the liquid heater further includes a motor and a crushing knife arranged in the glass cup body 10. The motor drives the crushing knife to rotate to realize the preparation of soymilk. Since foam will appear during the boiling process of soymilk, and the foam part is easy to overflow but the detection signal is weaker than that of the liquid. Therefore, in this embodiment, by using the glue application groove 21 to divide a single capacitor electrode 22 into two sub-electrodes, the two sub-electrodes can be used to detect and calibrate the liquid at the same height respectively, improving the detection accuracy. Especially in the detection environment with high requirements for detection sensitivity such as foam, the superimposed detection of multiple sub-electrodes can be realized, and the detection result is more reliable.

[0063] Embodiment 4, as Figure 8 As shown, the structure of this embodiment is basically the same as that of Embodiment 3, the difference being that the glue application groove 21 extends in a curved shape along the vertical direction of the detection plate 20.

[0064] It can be understood that in the present utility model, whether the glue application groove 21 is in a linear strip shape or a curved shape, the capacitor electrode 22 can be divided into two, realizing the dual detection of the same liquid level height, improving the detection accuracy, and ensuring the sensitive detection of the detection signal.

[0065] It should be noted that in Embodiments 1-4, the glue application grooves are all in the shape of strips with the same width. The equivalent width of the glue application groove refers to the length of the short side of the glue application groove. In fact, the glue application groove can also be in the shape of a strip with inconsistent widths, then the equivalent width of the glue application groove refers to the average length of the short sides of the glue application groove. Of course, the glue application groove can also be in other shapes. For example, the glue application groove is a circular groove, and the equivalent width of the glue application groove refers to the diameter of the circular groove; or, the glue application groove is a triangular groove, and the equivalent width of the glue application groove refers to the diameter of the circumscribed circle of the triangular groove; or, the glue application groove is a square groove, and the equivalent width of the glue application groove refers to the side length of the square groove; or, the glue application groove is in other special-shaped structures, and the equivalent width of the glue application groove is the diameter of the circumscribed circle of the glue application groove.

[0066] In addition, it should be noted that the structure of the liquid heater of the present utility model is not limited, and it can be a food processor that does not require hand washing, a wall breaker with a motor placed below, a head-type soybean milk machine, a health kettle, a boiling water pot, etc.

[0067] Those parts not described in the present utility model can be realized by adopting or referring to the existing technologies.

[0068] 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, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0069] The above are only the embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A liquid heater, comprising a glass body and a detection plate for detecting liquid level in the air, characterized in that: A positioning groove extending vertically is provided on the outer side of the glass cup body. The detection plate is strip-shaped and vertically positioned in the positioning groove. The detection plate divides the positioning groove into an inner cavity chamber close to the glass cup body side and an outer cavity chamber far from the glass cup body side. A glue-passing groove is penetrated through the detection plate. The equivalent width W of the glue-passing groove is ≥ 1 mm. The inner cavity chamber and the outer cavity chamber are communicated through the glue-passing groove. By pouring glue into the positioning groove, the glue liquid fills the inner cavity chamber and the outer cavity chamber through the glue-passing groove to encapsulate the detection plate.

2. The liquid heater according to claim 1, wherein The glue-passing groove is arranged adjacent to the edge of the detection plate, and the distance L from the glue-passing groove to the edge of the detection plate is ≤ 5 mm.

3. A liquid heater according to claim 1 or 2, characterized in that, The glue-passing groove extends in a strip shape vertically or horizontally.

4. A liquid heater according to claim 1, characterized in that, The detection plate is provided with a plurality of capacitor electrode plates arranged at vertical intervals, and the glue-passing groove is arranged between two adjacent capacitor electrode plates.

5. A liquid heater according to claim 1, characterized in that, The detection plate is provided with a plurality of capacitor electrode plates arranged at vertical intervals, and the glue-passing groove divides a single capacitor electrode plate into two sub-electrode plates.

6. A liquid heater according to claim 5, wherein, The glue-passing groove extends obliquely relative to the detection plate into a straight strip shape; Or, the glue-passing groove extends in a curved shape along the vertical direction of the detection plate.

7. A liquid heater according to claim 1, characterized in that, The peripheral wall of the glass cup body is a curved surface protruding outward. The detection plate abuts against the peripheral wall of the glass cup body. The inner cavity chamber includes a first inner cavity and a second inner cavity. The glue-passing groove includes a first glue-passing groove communicated with the first inner cavity and a second glue-passing groove communicated with the second inner cavity.

8. A liquid heater according to claim 1, characterized in that, A positioning rib inserted into the glue-passing groove is fixedly arranged on the outer side of the glass cup body. A glue-passing gap is formed between the positioning rib and the groove wall of the glue-passing groove.

9. The liquid heater according to claim 8, characterized in that, The liquid heater further includes a mounting bracket fixed outside the peripheral wall of the glass cup body. The mounting bracket is provided with a surrounding edge closely fitted with the peripheral wall of the glass cup body. The surrounding edge encloses to form the positioning groove. The positioning rib is integrally arranged on the mounting bracket.

10. A liquid heater according to claim 1, characterized in that, The positioning groove is recessed on the outer surface of the peripheral wall of the glass cup body; Or, a convex rib is integrally protruded on the outer surface of the peripheral wall of the glass cup body, and the convex rib encloses to form the positioning groove; Or, a mounting bracket is fixed on the outer side of the peripheral wall of the glass cup body. The mounting bracket is provided with a surrounding edge closely fitted with the peripheral wall of the glass cup body, and the surrounding edge encloses to form the positioning groove.

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