Accurately-assembled liquid heater

Abstract

The utility model belongs to the technical field of food processing devices, and particularly relates to an accurately-assembled liquid heater which comprises a glass cup body and a detection plate arranged on the outer side of the glass cup body and used for detecting the liquid level across the air, a vertically-extending positioning groove is formed in the side wall of the glass cup body, the depth W of the positioning groove is larger than or equal to 1 mm, and the width W of the positioning groove is larger than or equal to 1 mm. The positioning groove is provided with a positioning part for positioning the upper end or the lower end of the detection plate, and the detection plate is strip-shaped and is vertically positioned in the positioning groove. The detection plate is prevented from sliding and shifting through the positioning grooves, positioning is reliable, and the installation position of the detection plate is accurate. The upper end and the lower end of the detection plate are accurately positioned along the height direction of the glass cup body by means of the positioning part, and the mounting height of the detection plate is accurate, so that the positioning and pre-mounting of the detection plate are easy by means of the positioning groove, the detection plate is accurately positioned from multiple directions by the positioning groove and the positioning part, the detection accuracy and the detection sensitivity of the detection plate are improved, and the detection efficiency is improved. And the misjudgment risk is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing devices, and in particular relates to a precisely assembled liquid heater. Background Art

[0002] Existing liquid heating devices, such as soymilk machines, usually need to install an anti-overflow detection structure to prevent the slurry from overflowing after boiling. There are two main existing anti-overflow detection methods: one is contact anti-overflow electrode detection, in which the boiling slurry overflows and contacts the anti-overflow electrode, and the potential of the anti-overflow electrode is changed to achieve anti-overflow detection. When this detection method is used in a liquid heater, the anti-overflow electrode must be set in a place where the slurry can reach the glass cup body, which is easy to adhere to the slurry and bring inconvenience to cleaning; another anti-overflow detection method is remote detection, which is achieved by setting a detection board on the outside of the insulating glass cup body, and the detection board is attached to the capacitor electrode. The capacitance of the detection board changes with the volume of the liquid in the glass cup body, and the remote liquid level detection or anti-overflow detection is achieved without contact with the liquid, which is convenient for cleaning and has a high degree of intelligence.

[0003] For example, a patent application with application number 201720526032.4 discloses a food processor with good anti-overflow effect, including a base with a built-in motor and a mixing cup arranged above the base, the mixing cup includes a glass cup with a handle and a water level detection structure arranged on the outer side of the glass cup, the water level detection structure includes a detection component fitted on the outer wall of the glass cup and a capacitive sensing plate connected to the detection component, a handle shell is mounted on the handle, the handle shell includes an arc-shaped cavity matching the handle and a positioning groove for embedding the capacitive sensing plate, and the capacitive sensing plate is positioned at a preset workstation adjacent to the outer wall of the glass cup through the handle shell.

[0004] In the above technology, since the outer wall of the glass cup is a cylindrical shape with an arc and the sensor plate is a strip-shaped flat plate, the sensor plate is directly positioned on the smooth glass cup through the handle shell, which will cause the sensor plate to be difficult to position and slide relative to the cup body, resulting in inaccurate assembly position of the sensor plate, affecting the detection accuracy; after the sensor plate is installed in place, the edge of the sensor plate cannot fit tightly with the glass cup, and it is easy to tilt up and cause the sensor plate to move, and the sensor plate positioning is still unreliable and the detection is inaccurate.

[0005] In addition, due to installation errors between the handle shell and the glass cup during the assembly process, when the detection plate is positioned using the handle shell, the positioning of the detection plate will deviate, and the installation height of the detection plate will be inaccurate, resulting in a deviation between the water level height actually detected by the detection board and the preset water level height, resulting in inaccurate detection. Utility Model Content

[0006] The utility model provides a precisely assembled liquid heater, which not only solves the problem of difficult positioning of a detection plate, but also further solves the problem of inaccurate detection caused by errors in the installation height of the detection plate.

[0007] The technical solution adopted by the utility model is:

[0008] The utility model provides a precisely assembled liquid heater, comprising a glass cup body, a detection plate arranged on the outside of the glass cup body for detecting the liquid level in the air, a side wall of the glass cup body is provided with a vertically extending positioning groove, a groove depth of the positioning groove is W and W≥1mm, the positioning groove is provided with a positioning portion for positioning the upper end or the lower end of the detection plate, and the detection plate is strip-shaped and vertically positioned in the positioning groove.

[0009] The precisely assembled liquid heater provided by the utility model has a vertically extending positioning groove with a groove depth of W and W ≥ 1mm, so that the detection plate is directly positioned in the positioning groove. Along the circumferential direction of the glass cup body, the side walls of the positioning groove limit the circumferential position of the detection plate, and the detection plate is prevented from sliding and shifting during and after the installation of the detection plate. The positioning is reliable and the installation position of the detection plate is accurate. At the same time, the side walls of the positioning groove protect the edges of the detection plate, reduce the probability of warping and position shifting of the detection plate edges, and improve the fitting effect of the detection plate and the glass cup body, which is beneficial to reducing the spacing distance of the detection plate and improving the detection accuracy. On the basis of using the positioning groove to position and pre-install the detection plate, the upper or lower end of the detection plate is positioned with the help of the positioning part, so that along the height direction of the glass cup body (vertical direction), the upper and lower ends of the detection plate are accurately positioned, the installation height of the detection plate is accurate, and the detection range of the detection plate and the liquid level range in the glass cup body accurately correspond. Compared with the traditional technology of using additional components for positioning, the assembly error of the detection plate and the glass cup body is reduced, the detection range of the detection plate is accurate, and the detection accuracy is improved; therefore, the positioning groove is used to facilitate the positioning and pre-installation of the detection plate, and at the same time, the positioning groove and the positioning part accurately position the detection plate from multiple directions, thereby improving the detection accuracy of the detection board, the detection sensitivity, and reducing the risk of misjudgment.

[0010] In a preferred embodiment, the outer side wall of the glass body is provided with a positioning plane, and the positioning groove is formed on the positioning plane.

[0011] By providing a positioning plane on the outer wall of the glass cup body, the positioning groove is formed on the positioning plane. Compared with the method of directly die-casting the positioning groove on the circumferential outer wall of the glass cup body, the position of the positioning groove can be made more precise, thereby improving the positioning accuracy of the detection plate and facilitating the accurate molding of the glass cup body. At the same time, forming the positioning groove on the positioning plane is conducive to leveling the bottom surface of the positioning groove, which can not only improve the positioning effect of the detection plate and pre-install the detection plate well to simplify the assembly of the detection plate, but also improve the fit between the planar detection plate and the positioning groove, so that the detection element on the detection plate can effectively detect the liquid level inside the glass cup body, and the distance between the detection element and the liquid level is more uniform, thereby improving the consistency between the capacitor electrode on the detection plate and the liquid signal sensing, making the detection more sensitive and accurate, and avoiding misjudgment and insensitive triggering.

[0012] In a preferred embodiment, two vertical ribs extending vertically are protruded on the positioning plane, and the positioning groove is formed between the two vertical ribs.

[0013] The positioning groove is formed by protruding two vertical ribs on the positioning plane, and the groove side walls of the positioning groove are formed by the vertical ribs to enhance the limiting effect of the detection plate, so that the positioning of the detection plate is reliable.

[0014] In a preferred embodiment, the positioning groove is formed by a depression on the outer wall of the glass body;

[0015] Alternatively, the side wall of the glass body has a protrusion protruding inwardly, the inner side of the protrusion forms a spoiler rib, and the outer side forms a positioning groove.

[0016] Whether the positioning groove is formed by the depression of the outer wall of the glass cup body or by adding vertical ribs, or the positioning groove is formed simultaneously with the spoiler ribs, accurate positioning of the detection plate can be achieved. It can be flexibly selected according to actual needs during the die-casting process of the glass cup body, thereby facilitating the subsequent assembly and fixation of the detection plate.

[0017] In a preferred embodiment, the bottom wall of the positioning groove is a plane, and the inner side wall of the glass body is provided with an inner plane corresponding to the position of the plane.

[0018] By setting the bottom wall of the positioning groove as a plane and setting an inner plane corresponding to the position of the plane on the inner wall of the glass cup body, the vertical and horizontal distances between the detection plate located in the positioning groove and the liquid in the glass cup body are made consistent, and the detection is more accurate and sensitive. The bottom wall of the positioning groove is a plane, which can not only improve the positioning effect of the detection plate and pre-install the detection plate well to simplify the assembly of the detection plate, but also improve the fit between the planar detection plate and the positioning groove, so that the detection element on the detection plate can effectively detect the liquid level inside the glass cup body, and the distance between the detection element and the liquid level is more uniform, ensuring the consistency of the capacitor electrode on the detection plate and the liquid signal induction, so that the detection is more accurate and avoids false detection.

[0019] In a preferred embodiment, the upper end of the detection plate abuts against the positioning portion, and the lower end of the positioning groove is provided with a notch for wiring;

[0020] Since a general detection board generally includes a detection section and a signal processing section, in order to expand the detection range of the detection board, the detection section is generally close to the upper end to cover a larger cup body area, and the signal processing section is located at the lower end and connected to the lead. Therefore, the positioning portion is arranged at the top to enable the upper end of the detection board to be accurately positioned, and a notch is provided at the lower end of the positioning groove to enable the lead to pass through, which is conducive to the arrangement of the leads, while taking into account the expansion of the detection area of ​​the detection board, and the structural reliability is stronger.

[0021] In a preferred embodiment, the positioning portion is a positioning rib disposed at the upper end of the positioning groove; or, the positioning portion is an upper end wall of the positioning groove.

[0022] The positioning portion can be formed by setting a positioning rib at the upper end of the positioning groove alone, or it can be directly formed by using the upper end wall of the positioning groove, so as to facilitate the accurate determination of the upper end position of the detection plate, ensure the vertical detection range of the detection plate is accurate, and improve the detection accuracy.

[0023] In a preferred embodiment, the cup mouth of the glass cup body is provided with an outwardly protruding annular rib and a fixing seat fixedly mounted on the annular rib, handles are provided on both sides of the fixing seat, and the annular rib forms a positioning portion.

[0024] An annular rib is arranged at the cup mouth of the glass cup body, the annular rib is used to fix the fixing seat and handles are formed on both sides of the fixing seat, so that the user can take and place the glass cup body from bottom to top, and the operation is labor-saving and convenient.

[0025] In a preferred embodiment, the detection plate is encapsulated in the positioning groove by a glue-filling layer to form an integral body with the glass cup body;

[0026] On the basis of using the positioning groove to position and pre-install the detection board, the positioning groove is used to provide glue injection space, so that the detection board can be directly fixed to the glass cup body by glue injection. After the detection board and the bottom wall of the positioning groove are tightly fitted, liquid glue is filled on the outside of the detection board and in the positioning groove to seal the detection board, so that the outside of the detection board is encapsulated in the positioning groove by the glue injection layer to form a whole with the glass cup body. The fixation between the detection board and the glass cup body is completed in one step, eliminating the cumbersome assembly steps and assembly errors caused by indirect fixation through additional parts, greatly simplifying the assembly method, and while using the glue injection layer to fix the detection board, effective sealing of the detection board is achieved, ensuring that the detection board and the glass cup body are in close contact, effectively sealing the gap between the detection board and the glass cup body to prevent water vapor from entering, and reliably sealing, eliminating the need for separate setting of sealing film and other operations, while simplifying the assembly, ensuring the waterproofness of the detection board, avoiding the failure of the detection board due to water ingress and inaccurate detection, improving the detection accuracy and reliability, extending the service life, and simplifying the assembly and sealing methods.

[0027] In a preferred embodiment, the liquid heater further comprises a double-sided adhesive tape disposed between the positioning groove and the detection plate, and the detection plate is fixed in the positioning groove by bonding with the double-sided adhesive tape to form an integral body with the glass body.

[0028] By using double-sided tape, the detection board can still be directly bonded to the positioning groove, avoiding the cumbersome assembly steps and assembly errors caused by indirect fixation with additional parts, greatly simplifying the assembly method and improving the accuracy of the detection board installation.

[0029] In a preferred embodiment, a protective member is further included, which is fixedly mounted on the outside of the glass body and presses the detection plate into the positioning groove.

[0030] In a preferred embodiment, the protective member is provided with an elastic member for pressing the detection plate; or, the protective member is a handle.

[0031] By setting up protective parts, the detection board can be hidden and installed to avoid exposure of the detection board. A protective barrier is added to the detection board to prevent the detection board from being disturbed by the outside world, ensure the accuracy of the detection, extend the service life of the detection board, and improve the waterproof and dustproof effect of the detection board. At the same time, the protective parts are used to press the detection board into the positioning groove to improve the sensitivity of the detection board.

[0032] By arranging an elastic member on the protective member to press the detection plate, the sensitivity of the detection plate can be improved and the installation can be made more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0034] Figure 1 This is a schematic structural diagram of a liquid heater in one embodiment of the utility model;

[0035] Figure 2 This is a schematic diagram of the cooperation between the glass cup body and the detection plate in one embodiment of the utility model;

[0036] Figure 3 This is a schematic diagram of assembling a glass cup body and a detection plate in another embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the cooperation between the glass cup body and the detection plate in another embodiment of the utility model;

[0038] Figure 5 This is a cross-sectional view of a glass cup body in one embodiment of the utility model.

[0039] Description of reference numerals:

[0040] 10. Host; 20. Glass cup body; 201. Positioning groove; 2011. Upper end wall; 202. Positioning part; 203. Positioning plane; 204. Vertical ribs; 205. Positioning convex ribs; 206. Inner plane; 21. Annular ribs; 22. Fixed seat; 221. Upper drag ring; 222. Lower drag ring; 223. Sealing ring; 23. Handle; 40. Detection board; 41. Capacitor electrode; 42. Chip; 43. Wiring terminal. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0043] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[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 Figure 1 As shown, the utility model provides a precisely assembled liquid heater, comprising a glass cup body 20, and a detection plate 40 arranged on the outside of the glass cup body 20 for detecting the liquid level in the air, as shown in FIG. Figure 2 As shown, the side wall of the glass body 20 is provided with a vertically extending positioning groove 201, the groove depth of the positioning groove 201 is W and W ≥ 1mm, and the positioning groove 201 is provided with a positioning portion 202 for positioning the upper end or the lower end of the detection plate 40. Figure 2 In the illustrated embodiment, the detection plate 40 is strip-shaped and is vertically positioned in the positioning groove 201 , and the positioning portion 202 positions the upper end of the detection plate.

[0047] In this embodiment, if Figure 1As shown, the liquid heater is a food processor that does not require hand washing. The liquid heater also includes a main unit 10, in which a control device connected to a detection board 40 is provided. The glass cup body 20 is detachably mounted on the main unit 10, and a heating plate and a crushing knife are also provided at the bottom of the glass cup body 20 to prepare soy milk.

[0048] Preferably, combined Figure 1-5 As shown, the detection board 40 includes a detection section, and a plurality of capacitor electrodes 41 are arranged at vertical intervals on the inner side of the detection section to detect liquid level signals at different heights to detect low liquid level detection, dry burning detection and high liquid level overflow signal detection, etc. The detection board 40 also includes a signal processing section, and a chip 42 and a terminal 43 are provided on the outer side of the signal processing section, and the terminal 43 is connected with a lead for connecting to a control device.

[0049] The utility model provides a precisely assembled liquid heater, which directly positions the detection plate 40 in the positioning groove 201 by setting a vertically extending positioning groove 201 with a groove depth of W and W ≥ 1mm. Along the circumferential direction of the glass cup body 20, the side walls of the positioning groove 201 limit the circumferential position of the detection plate 40, and prevent the detection plate 40 from sliding and shifting during and after the installation of the detection plate 40. The positioning is reliable and the installation position of the detection plate 40 is accurate. At the same time, the side walls of the positioning groove 201 protect the edges of the detection plate 40, reduce the probability of the edges of the detection plate 40 warping and position shifting, and improve the fitting effect of the detection plate 40 and the glass cup body 20, thereby helping to reduce the air distance of the detection plate 40 and improve the detection accuracy. On the basis of using the positioning groove 201 to position and pre-install the detection plate 40, the upper end or the lower end of the detection plate 40 is positioned with the help of the positioning part 202, so that along the height direction (vertical direction) of the glass cup body 20, the upper end and the lower end of the detection plate 40 are accurately positioned, the installation height of the detection plate 40 is accurate, and the detection range of the detection plate 40 and the liquid level range in the glass cup body 20 accurately correspond. Compared with the traditional technology of using additional components for positioning, the assembly error of the detection plate 40 and the glass cup body 20 is reduced, the detection range of the detection plate 40 is accurate, and the detection accuracy is improved; therefore, the positioning groove 201 is used to facilitate the positioning and pre-installation of the detection plate 40, and at the same time, the positioning groove 201 and the positioning part 202 accurately position the detection plate 40 from multiple directions, thereby improving the detection accuracy of the detection plate 40, detecting sensitivity, and reducing the risk of misjudgment.

[0050] The present invention does not limit the specific structure of the positioning groove 201 and the corresponding positioning portion 202. For example, any of the following implementation examples may be used:

[0051] Implementation example 1, such as Figure 2As shown, the outer side wall of the glass body 20 is provided with a positioning plane 203, and the positioning groove 201 is formed on the positioning plane 203. Specifically, two vertical ribs 204 extending vertically are convexly provided on the positioning plane 203, and the positioning groove 201 is formed between the two vertical ribs 204.

[0052] In this embodiment, the positioning portion 202 is disposed on the upper portion of the positioning groove 201. Preferably, as shown in FIG. Figure 2 As shown, a transversely extending positioning convex rib 205 is provided near the upper end of the two vertical ribs 204 to form a positioning portion 202; the upper end of the detection plate 40 abuts against the positioning portion 202, and the lower end of the positioning groove 201 is provided with a notch for wiring.

[0053] It is understandable that the two ends of the positioning rib 205 and the upper ends of the two vertical ribs 204 can be connected to close the upper part of the positioning groove 201, so as to achieve the glue-filling fixation of the detection plate 40. Alternatively, in fact, the two ends of the positioning rib 205 and the upper ends of the two vertical ribs 204 can be disconnected to facilitate manufacturing. For example, a die-cast glass cup body is used, and the positioning plane, the positioning vertical ribs and the positioning ribs are integrally die-casted during the die-casting process of the glass cup body to improve the processing accuracy.

[0054] In this embodiment, for example, the vertical ribs 204 protruding from the positioning plane 203 form the positioning grooves 201 and the positioning convex ribs 205 are used to form the positioning portion 202. The structure is simple, the detection plate 40 is more fully limited, and the positioning is convenient. By providing a positioning plane 203 on the outer wall of the glass cup body 20, the positioning groove 201 is formed on the positioning plane 203. Compared with the method of directly die-casting the positioning groove 201 on the circumferential outer wall of the glass cup body 20, the position of the positioning groove 201 can be made more precise, thereby improving the positioning accuracy of the detection plate 40 and facilitating the accurate molding of the glass cup body 20. At the same time, molding the positioning groove 201 on the positioning plane 203 is conducive to leveling the bottom surface of the positioning groove 201, which can not only improve the positioning effect of the detection plate 40, but also pre-install the detection plate 40 well to simplify the assembly of the detection plate 40, and at the same time improve the fit between the planar detection plate 40 and the positioning groove 201, so that the detection element on the detection plate 40 can effectively detect the liquid level inside the glass cup body 20, and the distance between the detection element and the liquid level is more uniform, thereby improving the consistency between the capacitor electrode 41 on the detection plate 40 and the liquid signal sensing, and the detection is more sensitive and accurate, avoiding misjudgment and insensitive triggering. By protruding two vertical ribs 204 on the positioning plane 203 to form a positioning groove 201, the vertical ribs 204 are used to form the groove sidewalls of the positioning groove 201 to enhance the limiting effect on the detection board 40, so that the positioning of the detection board 40 is reliable. Since the general detection board 40 generally includes a detection section and a signal processing section, in order to expand the detection range of the detection board 40, the general detection section is close to the upper end to cover more cup body areas, and the signal processing section is located at the lower end and connected to the lead wire. Therefore, the positioning portion 202 is arranged at the top to enable the upper end of the detection board 40 to achieve precise positioning, and a notch is arranged at the lower end of the positioning groove 201 to achieve the passage of the lead wire, which is beneficial to the arrangement of the lead wire, while taking into account the expansion of the detection area of ​​the detection board 40, and the structural reliability is stronger.

[0055] Implementation Example 2, such as Figure 3 As shown, in this embodiment, the upper end of the positioning groove 201 is set to be closed to form an upper end wall 2011 of the positioning groove 201, and the upper end wall 2011 forms a positioning portion 202. The upper end of the detection plate 40 abuts against the upper end wall 2011 to achieve positioning.

[0056] Specifically, Figure 3 As shown, the positioning groove 201 is formed by being recessed in the outer wall of the glass body 20 , for example, the positioning groove 201 is directly recessed in the circumferential outer side wall of the glass body 20 .

[0057] Of course, in other embodiments, the outer wall of the glass cup body 20 is provided with a positioning plane 203, and the positioning groove 201 is formed by being recessed inward from the positioning plane 203; or, the side wall of the glass cup body 20 has a protruding portion protruding inward, and the inner side of the protruding portion forms a spoiler rib and the outer side forms the positioning groove 201; or, a convex rib is directly arranged on the side wall of the glass cup body to enclose the positioning groove.

[0058] Implementation Example 3, such as Figure 4 As shown, the cup mouth of the glass cup body 20 is provided with an outwardly protruding annular rib 21 and a fixing seat 22 fixedly installed on the annular rib 21 , handles 23 are provided on both sides of the fixing seat 22 , and the annular rib 21 forms a positioning portion 202 .

[0059] Specifically, the fixing seat 22 includes an upper drag ring 221 and a lower drag ring 222 for clamping the annular rib 21. The upper drag ring 221 and the lower drag ring 222 are fixedly connected by screws 224 and a sealing ring 223 is sandwiched therebetween to achieve sealing at the mouth of the glass cup body.

[0060] By setting an annular rib 21 at the cup mouth of the glass cup body 20, the annular rib 21 is used to fix the fixing seat 22 and handles 23 are formed on both sides of the fixing seat 22, so that the user can take and place the glass cup body 20 from bottom to top, which is labor-saving and convenient. At the same time, the annular rib 21 is used to form a positioning part 202 to achieve precise positioning of the detection plate 40.

[0061] In a preferred embodiment of the present invention, Figure 5 As shown, the bottom wall of the positioning groove 201 is a plane, namely, the positioning plane 203, and the inner side wall of the glass cup body 20 is provided with an inner plane 206 corresponding to the position of the plane.

[0062] By setting the bottom wall of the positioning groove 201 as a plane and setting an inner plane 206 corresponding to the plane position on the inner wall of the glass cup body 20, the vertical and horizontal distances between the detection plate 40 located in the positioning groove 201 and the liquid in the glass cup body 20 are made consistent, and the detection is more accurate and sensitive. The bottom wall of the positioning groove 201 is a plane, which can not only improve the positioning effect of the detection plate 40 and pre-install the detection plate 40 to simplify the assembly of the detection plate 40, but also improve the fit between the planar detection plate 40 and the positioning groove 201, so that the detection element on the detection plate 40 can effectively detect the liquid level inside the glass cup body 20, and the distance between the detection element and the liquid level is more uniform, ensuring the consistency between the capacitor electrode 41 on the detection plate 40 and the liquid signal sensing, so that the detection is more accurate and avoids false detection.

[0063] The present invention does not limit the fixing method of the detection plate 40, for example:

[0064] In implementation example 4, the detection plate 40 is encapsulated in the positioning groove 201 by a glue filling layer to form a whole with the glass cup body 20;

[0065] On the basis of using the positioning groove 201 to position and pre-install the detection board 40, the positioning groove 201 is used to provide a glue injection space, so that the detection board 40 is directly fixed to the glass cup body 20 by means of glue injection. After the detection board 40 and the bottom wall of the positioning groove 201 are tightly fitted, liquid glue is filled on the outside of the detection board 40 and in the positioning groove 201 to seal the detection board 40, so that the outside of the detection board 40 is encapsulated in the positioning groove 201 through the glue injection layer to form a whole with the glass cup body 20. The fixation between the detection board 40 and the glass cup body 20 is completed in one step, eliminating the need for indirect fixing through additional components. The cumbersome assembly steps and assembly errors caused by fixation can be greatly simplified, and the test board 40 can be fixed by the glue layer while being effectively sealed to ensure that the test board 40 and the glass cup body 20 are in close contact, and the gap between the test board 40 and the glass cup body 20 is effectively sealed to prevent water vapor from entering. The seal is reliable, and the operation of separately setting up a sealing film is omitted. While simplifying the assembly, the waterproofness of the test board 40 is ensured, and the test board 40 can be prevented from failing due to water ingress and inaccurate detection, thereby improving detection accuracy and reliability, extending service life, and simplifying assembly and sealing methods.

[0066] In implementation example 5, the liquid heater further includes a double-sided adhesive tape disposed between the positioning groove 201 and the detection plate 40 , and the detection plate 40 is fixed in the positioning groove 201 by bonding with the double-sided adhesive tape to form a whole with the glass cup body 20 .

[0067] By using double-sided tape, the detection board 40 can still be directly bonded to the positioning groove 201, avoiding the cumbersome assembly steps and assembly errors caused by indirect fixation using additional components, greatly simplifying the assembly method, and improving the accuracy of the installation of the detection board 40.

[0068] In Example 6, the liquid heater further includes a protective member, which is fixedly mounted on the outside of the glass body 20 and holds the detection plate 40 in the positioning groove 201. For example, the protective member is a handle fixed on one side of the glass body 20. The liquid heater in this example can be a soymilk maker. Of course, the protective member can also be a decorative member or a panel.

[0069] More specifically, the protective member is provided with an elastic member, such as a spring, for pressing the detection plate 40 .

[0070] By providing the protective member, the detection board 40 can be installed in a hidden manner, the detection board 40 is prevented from being exposed, a protective barrier is added to the detection board 40, the detection board 40 is prevented from being disturbed by the outside world, the detection accuracy is ensured, the service life of the detection board 40 is extended, and the waterproof and dustproof effect of the detection board 40 is improved. At the same time, the detection board 40 is pressed and held in the positioning groove 201 by the protective member to improve the sensitivity of the detection board 40. By providing an elastic member on the protective member to press and hold the detection board 40, the installation can be made more flexible on the basis of improving the sensitivity of the detection board 40.

[0071] It should be noted that, in addition to the above-mentioned implementation examples, in other implementation examples, the positioning portion is set at the lower part of the positioning groove. For example, the positioning groove is provided with a lower end wall, and the lower end of the detection plate abuts against the lower end wall to achieve positioning, and the lower end wall forms the positioning portion.

[0072] The liquid heater provided by the utility model can be not only the above-mentioned food processor and soybean milk machine which do not need to be washed by hands, but also a wall breaking machine, a health pot, a water boiler, a tea bar machine and the like.

[0073] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0074] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0075] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A precisely assembled liquid heater, comprising a glass body, and a detection plate arranged outside the glass body for detecting the liquid level in the air, characterized in that: The side wall of the glass body is provided with a vertically extending positioning groove, the groove depth of the positioning groove is W and W≥1mm, the positioning groove is provided with a positioning portion for positioning the upper end or the lower end of the detection plate, and the detection plate is strip-shaped and vertically positioned in the positioning groove.

2. A precisely assembled liquid heater according to claim 1, characterized in that: The outer side wall of the glass body is provided with a positioning plane, and the positioning groove is formed on the positioning plane.

3. A precisely assembled liquid heater according to claim 2, characterized in that: Two vertical ribs extending vertically are protruded on the positioning plane, and the positioning groove is formed between the two vertical ribs.

4. The precisely assembled liquid heater according to claim 1, characterized in that: The positioning groove is formed by being recessed in the outer wall of the glass body; Alternatively, the side wall of the glass body has a protruding portion protruding inwardly, the inner side of the protruding portion forms a spoiler rib, and the outer side forms the positioning groove.

5. The precisely assembled liquid heater according to claim 1, characterized in that: The bottom wall of the positioning groove is a plane, and the inner side wall of the glass body is provided with an inner plane corresponding to the position of the plane.

6. The precisely assembled liquid heater according to claim 1, characterized in that: The upper end of the detection plate is in contact with the positioning portion, and the lower end of the positioning groove is provided with a notch for wiring; Alternatively, the positioning portion is a positioning rib arranged at the upper end of the positioning groove; Alternatively, the positioning portion is an upper end wall of the positioning groove.

7. The precisely assembled liquid heater according to claim 1, characterized in that: The cup mouth of the glass cup body is provided with an annular rib protruding outward and a fixing seat fixedly installed on the annular rib, handles are provided on both sides of the fixing seat, and the annular rib forms the positioning part.

8. The precisely assembled liquid heater according to claim 1, characterized in that: The detection plate is encapsulated in the positioning groove through a glue potting layer to form a whole with the glass body; Alternatively, the liquid heater further comprises a double-sided adhesive tape disposed between the positioning groove and the detection plate, and the detection plate is bonded and fixed in the positioning groove by the double-sided adhesive tape to form a whole with the glass body.

9. The precisely assembled liquid heater according to claim 1, characterized in that: It also includes a protective piece, which is fixedly mounted on the outside of the glass body and presses the detection plate into the positioning groove.

10. The precisely assembled liquid heater according to claim 9, characterized in that: The protective member is provided with an elastic member for pressing the detection plate; Alternatively, the protective member is a handle.

Images