Liquid heater

Abstract

The utility model relates to the technical field of household appliances, and discloses a liquid heater which comprises a glass inner cup and an outer cup arranged outside the glass inner cup in a sleeving mode, an annular interlayer is formed between the glass inner cup and the outer cup, a detection plate assembly for detecting the liquid level height across the air is arranged in the interlayer, and an annular opening is formed in the bottom of the interlayer; the detection plate assembly comprises a detection plate and a flexible protection sleeve wrapping the detection plate, the flexible protection sleeve penetrates through the annular opening to be plugged into the interlayer, and the flexible protection sleeve abuts against the outer wall of the glass inner cup and the inner wall of the outer cup in an interference mode so that the detection plate can be clamped and fixed in the interlayer. Through the structure, an operator only needs to simply insert the detection plate assembly from the annular opening to complete fixed installation of the detection plate assembly, and on the basis of not adding other parts for assisting in installation of the detection plate, the problems that an existing liquid heater of a double-layer cup body structure is tedious in installation and fixing mode of the detection plate, complex in structure and inconvenient to install can be solved. And the assembly efficiency is low.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a liquid heater. Background Art

[0002] Existing liquid heaters, especially those involving slurry processing (such as soy milk makers, wall breaking machines, etc.), are usually equipped with anti-overflow devices to realize anti-overflow detection. The existing anti-overflow detection methods are divided into contact anti-overflow detection and non-contact anti-overflow detection. Among them, the non-contact anti-overflow detection has a detection structure that can realize liquid level detection and anti-overflow detection without contacting the slurry, which can solve the problem of cleaning dead corners in the contact anti-overflow detection results.

[0003] As a non-contact anti-overflow detection structure, prior art CN201720526032.4 discloses a solution: a blender cup includes a glass with a handle and a water level detection structure located on the outside of the glass. The water level detection structure includes a detection component mounted on the outer wall of the glass and a capacitive sensing plate connected to the detection component. The capacitive sensing plate detects food through the wall of the glass. A handle shell is mounted on the handle, and the handle shell includes a mounting slot for embedding the capacitive sensing plate. A waterproof film is provided in the gap between the mounting slot and the outer wall of the glass to ensure that the capacitive sensing plate does not short-circuit due to contact with external liquid that penetrates through the gap. However, this structure requires an additional waterproof film between the capacitive sensing plate and the glass to prevent external liquid from seeping into the gap between them, which increases costs. Furthermore, this structure is not suitable for liquid heaters with double-layer cup bodies.

[0004] To address the above issues, prior art CN202323177823.5 discloses a method for installing a detection plate for a double-layered cup: the detection plate has a first position for installation on the outer cup. After the inner glass cup is inserted into the outer cup, the detection plate moves radially from the first position to a second position where it abuts the outer wall of the inner glass cup. Specifically, when the inner glass cup is being inserted into the outer cup, the detection plate is maintained in the first position to prevent frictional displacement between the inner glass cup and the detection plate during insertion into the outer cup. This allows for rapid assembly of the inner glass cup and prevents damage to the detection plate. Once the inner glass cup is inserted into the outer cup, the detection plate is pressed to the second position where it abuts the outer wall of the inner glass cup by a push member. The movement of the detection plate is guided by a guide structure between the inner and outer cups, bringing the detection plate closer to the liquid in the inner glass cup, thereby improving the detection sensitivity and accuracy of the detection plate.

[0005] However, the above solution requires, on the one hand, first installing the detection plate at the first position of the outer cup, and then installing the glass inner cup, and then pressing the detection plate with the push piece until it abuts against the outer wall of the glass inner cup. The installation structure of the detection plate is complicated, and there are problems such as cumbersome installation and fixing methods, low assembly efficiency, and it is impossible to determine whether the push force is appropriate. If the push force is too large, it will cause damage to the detection plate, affecting the detection sensitivity and accuracy; on the other hand, the added guide structure and push pieces and other auxiliary detection plate components also increase the production cost and assembly difficulty of the entire component. Utility Model Content

[0006] The present application provides a liquid heater that can solve the problems of complex detection plate installation structure, cumbersome installation and fixing method, and low assembly efficiency in existing double-layer cup-structured liquid heaters without adding other auxiliary components for installing the detection plate, effectively improving the assembly efficiency and reducing the assembly difficulty and production cost.

[0007] The present application provides a liquid heater, comprising a glass inner cup and an outer cup sleeved outside the glass inner cup, an annular interlayer formed between the glass inner cup and the outer cup, a detection plate assembly for detecting the liquid level height in the air is provided in the interlayer, an annular opening is provided at the bottom of the interlayer, the detection plate assembly comprises a detection plate and a flexible protective cover wrapping the detection plate, the flexible protective cover is inserted into the interlayer through the annular opening, and the flexible protective cover is interference-fitted against the outer wall of the glass inner cup and the inner wall of the outer cup to clamp the detection plate in the interlayer.

[0008] By forming an annular interlayer between the inner glass cup and the outer glass cup, the bottom of the interlayer is provided with an annular opening, the flexible protective cover of the detection plate assembly is inserted into the interlayer through the annular opening, and the flexible protective cover is pressed against the outer wall of the inner glass cup and the inner wall of the outer glass cup in an interference fit manner, and the detection plate is clamped and fixed in the interlayer, so that the operator only needs to simply insert the detection plate assembly from the annular opening to complete the fixed installation of the detection plate assembly. Its installation and fixing method is simple, which effectively improves the assembly efficiency. Moreover, compared with the prior art, the present application does not require additional guide structures, push pieces and other auxiliary components for installing the detection plate assembly, which simplifies the installation structure of the detection plate assembly and further reduces the production cost and assembly difficulty. In addition, the flexible protective cover is inserted into the interlayer in an interference fit manner to achieve the fixation of the detection plate assembly in the interlayer. On the one hand, it further simplifies the installation structure and installation process, and on the other hand, it also facilitates the disassembly and assembly of the detection plate assembly in subsequent maintenance. Moreover, the interference fit manner also enables the detection plate assembly to completely fit the outer wall of the inner glass cup, further improving the detection accuracy of the detection plate assembly.

[0009] As a preferred technical solution, the liquid heater further includes an annular member configured to cover the annular opening.

[0010] By setting up a ring-shaped part to cover the annular opening, it is possible to prevent water vapor and dirt from entering the interlayer, thereby avoiding affecting the detection accuracy of the detection plate. In addition, the setting of the ring-shaped part can also support the inner and outer cups of the glass, thereby improving the structural stability between the two.

[0011] As a preferred technical solution, the annular member is a sealing member that seals the annular opening.

[0012] That is, a seal is directly provided between the inner glass cup and the outer glass cup, and the seal is used to seal the annular opening, which can effectively prevent water vapor and dirt from entering the interlayer, and the seal is also relatively easy to install in the annular opening.

[0013] Alternatively, the annular member is an annular plate formed by extending outward from the outer wall of the glass inner cup or extending inward from the inner wall of the outer cup.

[0014] As another structure of the annular member, an annular plate is formed by extending the outer wall of the glass inner cup outward, or an annular plate is formed by extending the inner wall of the outer cup inward. The annular plate covers the annular opening. No other components are required. The annular member is integrally formed from the glass inner cup or the outer cup. When the glass inner cup is installed in place in the outer cup, the annular member just covers the annular opening, which simplifies the installation process and improves installation efficiency.

[0015] As a preferred technical solution, a mounting opening is provided on the annular member, and after the annular member is installed, the detection plate assembly is inserted into the interlayer through the mounting opening.

[0016] By arranging the installation opening on the annular member, an installation channel is provided for the installation of the detection plate assembly, and it is convenient for the operator to locate the installation position of the detection plate assembly.

[0017] Alternatively, the annular member covers the annular opening after the detection plate assembly is inserted into the interlayer through the annular opening.

[0018] In this technical solution, the detection plate assembly is first inserted into the interlayer through the annular opening. The annular opening provides a sufficiently large installation space for the detection plate assembly to facilitate installation by the operator. Then, after the detection plate assembly is installed in place, the annular opening is covered by the annular member.

[0019] As a preferred technical solution, a guide groove extending upward along the outer wall of the inner glass cup is provided at the bottom of the interlayer, and the detection board assembly is inserted into the interlayer along the guide groove from the lower end of the guide groove.

[0020] By setting up the guide groove, the guide groove can guide the detection plate assembly during installation, preventing the detection plate assembly from being deflected and unable to be installed to the preset installation position. It can also avoid the detection plate assembly from colliding with the inner wall of the outer cup or the outer wall of the glass inner cup during installation.

[0021] As a preferred technical solution, the guide groove is formed by two convex ribs provided on the outer wall of the inner glass cup or the inner wall of the outer glass cup;

[0022] Alternatively, the guide groove is formed by the outer wall of the glass inner cup being recessed toward the center of the glass inner cup;

[0023] Alternatively, the glass inner cup is a through structure, and the liquid heater also includes a mounting bracket and a heating plate installed at the bottom of the glass inner cup, the mounting bracket is used to support the heating plate and fix it to the glass inner cup, and the heating plate is sealed with the lower opening of the glass inner cup, and the guide groove is provided on the mounting bracket.

[0024] The guide groove is directly formed on the mounting bracket, so that the mounting bracket can not only support the heating plate and the glass inner cup, but also further guide the installation of the detection board assembly.

[0025] As a preferred technical solution, a limiting protrusion is provided on the top of the interlayer, and the top of the flexible protective cover abuts against the limiting protrusion to limit the detection plate.

[0026] When the detection plate assembly is installed to the preset installation position, the top of the flexible protective cover will be limited by the limiting protrusion, thereby limiting the position of the detection plate assembly inserted into the interlayer, so that the detection plate assembly is in the preset installation position and meets the preset liquid level detection requirements.

[0027] As a preferred technical solution, the outer wall of the top of the glass inner cup is provided with an outwardly protruding step surface, the top of the outer cup is sealed with the step surface, and the top of the flexible protective cover abuts against the step surface.

[0028] This technical solution uses the outward protruding stepped surface of the glass inner cup to achieve a seal between it and the outer cup on the one hand, and on the other hand, it is also used to install and position the flexible protective cover, so that the detection plate assembly is in a preset installation position to meet the preset liquid level detection requirements.

[0029] As a preferred technical solution, the annular member is provided with a through hole, and the wire on the detection plate extends out through the through hole.

[0030] As a preferred technical solution, the top of the inner glass cup and the top of the outer glass cup are integrally formed;

[0031] Alternatively, the inner glass cup can be detachably mounted inside the outer cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 A schematic diagram of the three-dimensional structure of the liquid heater provided in Example 1 of the present application;

[0035] Figure 2 A cross-sectional view of the liquid heater provided in Example 1 of the present application;

[0036] Figure 3 This is a schematic diagram of the state of the detection plate assembly of the liquid heater provided in Example 1 of the present application before being inserted into the interlayer;

[0037] Figure 4 For this application Figure 2 A magnified schematic diagram of point A;

[0038] Figure 5 A schematic diagram of the exploded structure of the detection board assembly provided in Example 1 of the present application;

[0039] Figure 6 A schematic diagram of the structure of the detection board provided in Example 1 of the present application;

[0040] Figure 7 This is a schematic diagram of the assembly of the ring member provided in Example 1 of the present application;

[0041] Figure 8 A schematic structural diagram of a ring member provided in Example 1 of the present application with a mounting opening;

[0042] Figure 9 A schematic diagram of a guide groove according to one embodiment of the present application;

[0043] Figure 10 For this application Figure 2 A magnified schematic diagram of point B;

[0044] Figure 11 A schematic diagram of the structure of the mounting bracket provided in Example 1 of the present application;

[0045] Figure 12This is a schematic diagram of the assembly of the ring member provided in Example 2 of the present application;

[0046] Figure 13 A partial schematic diagram of the detection plate assembly provided in the third embodiment of the present application abutting against a step;

[0047] Figure 14 A cross-sectional view of a liquid heater provided in Example 4 of the present application;

[0048] Figure 15 For this application Figure 14 Enlarged schematic diagram of point C.

[0049] in,

[0050] 1. Glass inner cup; 11. Step surface; 2. Outer cup; 3. Detection board assembly; 31. Detection board; 311. First capacitor electrode; 312. Second capacitor electrode; 313. Splitting groove; 32. Flexible protective cover; 321. Mounting groove; 33. Control board; 34. Wire; 4. Handle; 5. Machine base; 6. Crushing knife; 7. Sealing gasket; 8. Ring part; 81. Mounting port; 82. Through hole; 9. Mounting bracket; 10. Heating plate; 100. Interlayer; 1001. Annular opening; 1002. Limiting protrusion; 1003. Guide groove. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.

[0053] Example 1

[0054] Figure 1 This is a schematic diagram of the three-dimensional structure of the liquid heater provided in this embodiment. Figure 2 A cross-sectional view of the liquid heater provided in this embodiment. Figure 3 This is a schematic diagram of the state of the detection board assembly of the liquid heater provided in this embodiment before being inserted into the interlayer. Figure 1 and Figure 2 As shown, the liquid heater of this embodiment is a soymilk maker, which comprises at least a glass inner cup 1, an outer cup 2, a detection board assembly 3, a handle 4, a machine base 5 and a crushing blade 6, wherein:

[0055] The inner glass cup 1 is used to place food, and the outer cup 2 is set outside the inner glass cup 1. The inner glass cup 1 and the outer glass cup 2 can be placed in a certain position. Figure 2 As shown, a detachable connection is adopted to achieve the fixed connection between the two, that is, the glass inner cup 1 is detachably mounted in the outer cup 2. In addition, the glass inner cup 1 can also be other non-metallic inner cups, such as an inner cup made of transparent plastic material.

[0056] An interlayer 100 is formed between the inner glass 1 and the outer glass 2. A detection board assembly 3 is installed within this interlayer 100 to remotely detect the liquid level within the inner glass 1, thereby implementing liquid level detection and overflow prevention. For example, an annular sealing gasket 7 seals the upper end of the inner glass 1 and the top of the outer glass 2 to prevent moisture and dirt from entering the interlayer 100 from the upper end.

[0057] The handle 4 is mounted on the outer cup 2 or connected to the inner glass cup 1 and the outer cup 2 to facilitate taking the liquid heater out. Preferably, the upper end of the handle 4 can be buckled onto the top of the inner glass cup 1 and the lower end can be connected to the outer cup 2.

[0058] The above-mentioned base 5 is arranged at the bottom of the liquid heater, and it can support the inner glass cup 1 and the outer cup 2. For example, the inner glass cup 1 can be sealed and supported on the base 5, or the outer cup 2 can be connected to the base 5, and the inner glass cup 1 is supported inside the outer cup 2.

[0059] In this embodiment, the crushing blade 6 can be disposed within the lower end of the inner glass 1. In this case, a motor drivingly connected to the crushing blade 6 can be disposed within the base 5. Of course, it is understood that when the liquid heater is provided with a machine head, the crushing blade 6 can also be disposed within the machine head. The specific structures of the base 5, crushing blade 6, and machine head are all conventional and will not be further described in this embodiment.

[0060] In the solution disclosed in the prior art CN202323177823.5, the detection plate assembly is installed by first installing the detection plate at the first position of the outer cup and then installing the glass inner cup. The detection plate is pressed by the push piece until it abuts against the outer wall of the glass inner cup. However, this method has a complex installation structure, cumbersome installation steps, low assembly efficiency, and cannot ensure whether the thrust is appropriate. On the other hand, the added guide structure and push piece also increase the production cost and assembly difficulty of the entire assembly.

[0061] To solve the above problems, please refer to Figure 2 and Figure 3In this embodiment, the interlayer 100 formed between the above-mentioned glass inner cup 1 and outer cup 2 is annular, and an annular opening 1001 is formed at the bottom of the interlayer 100. The above-mentioned detection plate assembly 3 can be inserted into the interlayer 100 through the annular opening 1001, and the detection plate assembly 3 is placed as a whole between the outer wall of the glass inner cup 1 and the inner wall of the outer cup 2 in an interference fit. Through the setting of the annular opening 1001 of the interlayer 100, the operator only needs to simply insert the detection plate assembly 3 from the annular opening 1001 to complete the installation of the detection plate assembly 3. The installation method is simple and fast, which effectively improves the assembly efficiency. Moreover, compared with the method of holding the detection plate by a push piece in the prior art, this embodiment reduces the "guide structure and push piece" and other parts that assist in the installation of the detection plate assembly, simplifies the installation structure of the detection plate assembly 3, and further reduces the production cost and assembly difficulty.

[0062] Figure 4 Provided for this embodiment Figure 2 A magnified schematic diagram, Figure 5 This is a schematic diagram of the decomposition structure of the detection board assembly provided in this embodiment. Figure 4 and Figure 5 To ensure that the detection plate assembly 3 does not shift or fall out after being inserted into the interlayer 100, the detection plate assembly 3 of this embodiment includes a detection plate 31 and a flexible protective cover 32. The flexible protective cover 32 is arranged to wrap around the detection plate 31. The detection plate 31 is used to detect the liquid level in the glass inner cup 1 to achieve liquid level and overflow prevention detection. Before installing the detection plate assembly 3 in the interlayer 100, the detection plate 31 is first wrapped with the flexible protective cover 32 to form an integral unit. The flexible protective cover 32 is then inserted into the interlayer 100 through the annular opening 1001. The flexible protective cover 32 is then tightly pressed against the outer wall of the glass inner cup 1 and the inner wall of the outer cup 2, clamping the detection plate 31 firmly in the interlayer 100.

[0063] In other words, the flexible protective cover 32 of this embodiment, thanks to its flexibility, can be squeezed by the outer wall of the inner glass cup 1 and the inner wall of the outer cup 2, forming the interlayer 100, to form an interference fit. During this squeezing process, the flexible protective cover 32 can tightly adhere to the inner wall of the inner glass cup 1, thereby securing the position of the detection plate 31. This structure of the detection plate assembly 3 not only further simplifies the installation structure and process, reducing assembly difficulty, but also facilitates subsequent disassembly and assembly of the detection plate assembly 3 for maintenance. Furthermore, the interference fit allows the detection plate assembly 3 to completely conform to the outer wall of the inner glass cup 1, further improving the detection accuracy of the detection plate assembly 3. It should be noted that the flexible protective cover 32 of this embodiment has certain deformability properties while also possessing a certain strength, so that when the operator holds the flexible protective cover 32 and inserts it into the interlayer 100, it will not cause the flexible protective cover 32 to bend, thereby preventing the installation process from being affected. Furthermore, it is necessary to ensure that the thickness of the flexible protective cover 32 does not affect the detection accuracy of the detection plate 31.

[0064] Furthermore, considering that the detection plate assembly 3 needs to be accurately installed in place to achieve accurate detection of the liquid level, it is necessary to limit the position where the detection plate assembly 3 is inserted into the interlayer 100 so that the detection plate assembly 3 is in a preset installation position. Figure 4 As shown, in this embodiment, a limiting protrusion 1002 is provided on the top of the interlayer 100. When the detection plate assembly 3 is installed to the preset installation position, the top of the flexible protective cover 32 abuts against the limiting protrusion 1002, so that the detection plate assembly 3 is in the preset installation position, meeting the preset liquid level detection requirements. Optionally, the limiting protrusion 1002 can be as follows Figure 4 As shown, the inner wall of the outer cup 2 is convexly arranged toward the inner glass cup 1 , and can also be formed by the outer wall of the inner glass cup 1 being convexly arranged toward the outer cup 2 .

[0065] In this embodiment, further, Figure 5 As shown, the flexible protective cover 32 can be configured as a structure with a rotatable connection at one end and an openable and closable structure at the other end, and a mounting groove 321 is provided in the flexible protective cover 32. The detection plate 31 can be placed in the mounting groove 321, and then the flexible protective cover 32 is closed to wrap the detection plate 31. Preferably, the mounting groove 321 can be configured as a through-hole hollow groove. In this case, the detection plate 31 can be placed in the mounting groove 321 with an interference fit, and the end surface of the detection plate 31 facing the glass inner cup 1 is flush with the end surface of the flexible protective cover 32 facing the glass inner cup 1. When the detection plate assembly 3 is installed in the interlayer 100, the detection plate 31 can be placed closely against the outer wall of the glass inner cup 1, thereby reducing the impact of the flexible protective cover 32 on the detection plate 31 and improving the detection accuracy of the detection plate 31.

[0066] Figure 6This is a schematic diagram of the structure of the detection board 31 provided in this embodiment. The detection board 31 is provided with a water level detection area formed by a plurality of first capacitor electrodes 311 arranged at intervals, and an overflow prevention detection area formed by a plurality of second capacitor electrodes 312 arranged at intervals. Along the height direction of the detection board 31, the overflow prevention detection area is located above the water level detection area. The plurality of first capacitor electrodes 311 and the plurality of second capacitor electrodes 312 are connected to the control board 33. By providing multiple first capacitor electrodes 311, water level detection of various different pulping capacities can be achieved. By providing multiple second capacitor electrodes 312, different overflow prevention signals corresponding to various pulping capacities can be detected. The first capacitor electrode 311 in the water level detection area is used to detect the pulping water level at the corresponding pulping capacity, while the second capacitor electrode 312 in the overflow prevention detection area is used to detect the overflow prevention height reached by the slurry at the corresponding pulping capacity during the pulping process. When the second capacitor electrode 312 detects that the slurry at the current pulping capacity has reached the preset overflow prevention detection position, the control board 33 will stop the motor and stop the heating, etc. to wait for overflow prevention.

[0067] like Figure 6 As shown, an inclined dividing groove 313 is provided on the detection plate 31, and the dividing groove 313 divides the anti-overflow detection area into two parallel detection areas, and each second capacitor electrode 312 is divided into two side-by-side sub-electrodes by the dividing groove 313. The areas of the two triangles formed after the anti-overflow detection area is divided are equal, but at the same height, the detection areas of the two detection areas are not equal. When performing anti-overflow detection, the cumulative values of the capacitance value increments detected by the two detection areas are obtained respectively, and the current anti-overflow height is determined according to the ratio of the cumulative values of the two capacitance value increments (the specific liquid heater has a built-in data of the ratio of the cumulative value and the anti-overflow height, and the anti-overflow height can be obtained by obtaining the ratio of the current cumulative value and the built-in data). When the current anti-overflow height is in the preset anti-overflow judgment position, the liquid heater configures the corresponding pulping parameters for subsequent pulping operations. The structure and detection method of the above-mentioned detection plate 31 can obtain a more accurate anti-overflow signal, which is conducive to the normal progress of pulping, prevents the safety risk of slurry overflow, and significantly improves the pulping efficiency.

[0068] In this embodiment, the detection board 31 is electrically connected to the control board 33 through the wire 34. The control board 33 can be placed in the base 5 ( Figure 2 As shown), the control board 33 receives the capacitance signal detected by the detection board 31 to detect the liquid level in the glass inner cup 1 and prevent overflow.

[0069] In this embodiment, the annular opening 1001 can be in an open state, but in order to further prevent the annular opening 1001 at the bottom of the interlayer 100 from being in an open state, causing water vapor and dirt to enter the interlayer 100, thereby affecting the detection accuracy and service life of the detection plate 31. The liquid heater of this embodiment also includes a ring member 8, which can be referred to Figure 7 , Figure 7 This is a schematic diagram of the assembly of the ring member 8 provided in this embodiment. In this embodiment, the ring member 8 is formed by extending inward from the inner wall of the outer cup 2 and can cover the annular opening 1001, thereby preventing moisture and dirt from entering the interlayer 100. At the same time, the provision of the ring member 8 can also support the inner glass cup 1 and the outer cup 2, improving the structural stability between the two. It is understood that the ring member 8 can also be formed by extending outward from the outer wall of the inner glass cup 1, and the ring member 8 can be integrally formed with the outer cup 2 / inner glass cup 1, or it can be provided separately, that is, the ring member 8 can be detachably mounted on the outer cup 2 / inner glass cup 1.

[0070] Figure 8 The annular member 8 provided in this embodiment is provided with a structural schematic diagram of a mounting port 81. In this embodiment, a mounting port 81 connected to an annular opening 1001 is provided on the annular member 8. After the annular member 8 is installed, the above-mentioned detection plate assembly 3 is inserted into the interlayer 100 through the mounting port 81. In other words, by providing the mounting port 81, an installation channel can be provided for the installation of the detection plate assembly 3, so that the detection plate assembly 3 can enter the interlayer through the annular opening 1001 through the mounting port 81. Moreover, the provision of the mounting port 81 can also facilitate the operator to locate the installation position of the detection plate assembly 3 when installing the detection plate assembly 3, thereby achieving efficient installation of the detection plate assembly 3. It can be understood that the size of the mounting port 81 is mainly to allow the detection plate assembly 3 to pass through, and preferably, after the detection plate assembly 3 is inserted into the interlayer 100, the mounting port 81 can be sealed by a structure such as a rubber plug to prevent water vapor and dirt from entering the interlayer 100 through the mounting port 81.

[0071] To prevent the detection board assembly 3 from interfering with other components during insertion into the interlayer 100, which could result in damage to the detection board assembly 3, a guide groove 1003 extending upward along the outer wall of the inner glass cup 1 is provided at the bottom of the interlayer 100 in this embodiment. The detection board assembly 3 is inserted into the interlayer 100 along the guide groove 1003 from the lower end thereof. In other words, as the operator inserts the detection board assembly 3 into the interlayer 100, the guide groove 1003 guides the detection board assembly 3 during installation, allowing for smoother insertion of the detection board assembly 3 into the interlayer 100. This prevents the detection board assembly 3 from colliding with the outer wall of the inner glass cup 1 or the inner wall of the outer cup 2 during installation, thereby improving assembly efficiency. Furthermore, the provision of the guide groove 1003 prevents the detection board assembly 3 from tilting, which could prevent it from being installed in the pre-set position and affect subsequent liquid level inspections.

[0072] It should be noted that, in this embodiment, the guide groove 1003 is arranged opposite to the above-mentioned installation opening 81 , and the detection board assembly 3 is guided by the guide groove 1003 and then inserted into the interlayer 100 through the installation opening 81 .

[0073] Figure 9 This is a schematic diagram of one embodiment of a guide groove 1003. In this embodiment, the guide groove 1003 is formed by two ribs on the outer wall of the inner glass cup 1. Specifically, the guide groove 1003 is formed between the two outwardly extending ribs. Of course, it is understood that in this embodiment, two ribs can also be provided on the inner wall of the outer cup 2, with the guide groove 1003 formed between the two ribs.

[0074] In another embodiment, the guide groove 1003 of this embodiment can also be formed by the outer wall of the inner glass cup 1 being recessed toward the center of the inner glass cup 1. In this case, the guide groove 1003 extends upward from the bottom of the inner glass cup 1 along the outer wall of the inner glass cup 1, and the detection board assembly 3 can be inserted upward into the interlayer 100 from the bottom of the guide groove 1003 along the groove body of the guide groove 1003. In this structure, the guide groove 1003 is directly integrally formed with the inner glass cup 1, further simplifying the guide structure. It should be noted that the upward extension position of the guide groove 1003 can be flush with the rim of the outer cup 2 or lower than the rim of the outer cup 2, depending on the predetermined installation position of the detection board assembly 3.

[0075] In yet another embodiment, Figure 10 As shown, Figure 10 For this application Figure 2 The liquid heater of this embodiment further comprises a mounting bracket 9 and a heating plate 10, wherein the heating plate 10 is used to heat the slurry during the food processing process, and the mounting bracket 9 is used to support the heating plate 10 and the glass inner cup 1. Figure 2 as well as Figure 10 As shown, the bottom of the glass inner cup 1 is a through-hole structure, and the heating plate 10 is fixedly connected to the bottom of the glass inner cup 1, specifically installed between the bottom of the glass inner cup 1 and the mounting bracket 9. The mounting bracket 9 is installed between the heating plate 10 and the ring member 8, and one end of the mounting bracket 9 is engaged with the glass inner cup 1 to secure the mounting bracket 9, the heating plate 10, and the glass inner cup 1. In this embodiment, the heating plate 10 and the glass inner cup 1, as well as the mounting bracket 9 and the ring member 8, are all sealed.

[0076] like Figure 11 As shown, Figure 11 The figure is a schematic diagram of the structure of the mounting bracket 9 of this embodiment. The above-mentioned guide groove 1003 is provided on the outer wall of the mounting bracket 9, and the projection of the guide groove 1003 on the horizontal plane is located within the projection of the mounting opening 81 on the ring member 8 on the horizontal plane. In other words, when the detection board assembly 3 is installed, the detection board assembly 3 can enter the mounting opening 81 unimpeded after being guided by the guide groove 1003 and inserted into the interlayer 100 through the mounting opening 81. By directly providing the guide groove 1003 on the mounting bracket 9, the mounting bracket 9, in addition to supporting the heating plate 10 and the glass inner cup 1, can further guide the installation of the detection board assembly 3. Moreover, this structure can achieve the guided installation of the detection board assembly 3 without changing the structure of the original glass inner cup 1 and the outer cup 2.

[0077] In the liquid heater of this embodiment, the flexible protective cover 32 of the detection plate assembly 3 is inserted into the interlayer 100 through the annular opening 1001, and the flexible protective cover 32 is tightly pressed against the outer wall of the glass inner cup 1 and the inner wall of the outer cup 2, and the detection plate 31 is clamped and fixed in the interlayer 100, which effectively improves the assembly efficiency and reduces the production cost and assembly difficulty.

[0078] Example 2

[0079] The difference between the liquid heater provided in this embodiment and the first embodiment is that the structure of the ring member 8 in this embodiment is different. Figure 12 In the assembly diagram of another embodiment of the ring member 8, the ring member 8 of this embodiment can be an annular sealing member. The sealing member is inserted into the interlayer 100 through the annular opening 1001 and then closes the annular opening 1001. The sealing member can not only close the annular opening 1001 but also seal the annular opening 1001, effectively preventing moisture from entering the interlayer 100 through the annular opening 1001. In addition, the structural characteristics of the sealing member also make it relatively easy to install in the annular opening 1001.

[0080] In addition, when the annular member 8 is not provided with the installation opening 81 , the detection plate assembly 3 is directly guided through the guide groove 1003 and then inserted into the interlayer 100 , and then the annular opening 1001 is closed by the annular member 8 .

[0081] Considering that the wire 34 on the detection board 31 needs to be electrically connected to the control board 33 in the base 5, Figure 12 As shown, in this embodiment, a through hole 82 is opened on the ring member 8 , and the wire 34 on the detection board 31 can extend through the through hole 82 to be electrically connected to the control board 33 .

[0082] The other structures of the liquid heater of this embodiment are the same as those of the first embodiment, and the liquid heater of this embodiment also has the same technical effects as the liquid heater provided in the first embodiment, which will not be described in detail here. Of course, it is understood that the structure or various parameters (including but not limited to dimensional parameters and control parameters) of the liquid heater of this embodiment can also be applied to other embodiments of the present invention.

[0083] Example 3

[0084] This embodiment provides a liquid heater, the structure of which is different from that of the first embodiment in that the installation limit structure of the detection plate assembly 3 is different in this embodiment. Specifically, Figure 13 As shown, the outer wall of the top of the inner glass cup 1 is provided with an outwardly protruding stepped surface 11. The top of the outer cup 2 is sealed against the stepped surface 11. Preferably, the top of the outer cup 2 abuts against the bottom of the stepped surface 11, and the top of the flexible protective cover 32 of the detection board assembly 3 abuts against the stepped surface 11, which limits the position of the detection board assembly 3. Specifically, the outwardly protruding stepped surface 11 of the inner glass cup 1 not only achieves a seal between the inner glass cup 1 and the outer cup 2, but also serves to position the flexible protective cover 32, ensuring that the detection board assembly 3 is in a predetermined installation position and meets the predetermined liquid level detection requirements.

[0085] The other structures of the liquid heater of this embodiment are the same as those of the first embodiment, and the liquid heater of this embodiment also has the same technical effects as the liquid heater provided in the first embodiment, which will not be described in detail here. Of course, it is understood that the structure or various parameters (including but not limited to dimensional parameters and control parameters) of the liquid heater of this embodiment can also be applied to other embodiments of the present invention.

[0086] Example 4

[0087] This embodiment provides a liquid heater, which is different from the first embodiment in that the glass inner cup 1 and the outer cup 2 of this embodiment are an integrally formed structure. Figure 14 and Figure 15 ,in Figure 14 A cross-sectional view of the liquid heater provided in this embodiment, Figure 15 for Figure 14An enlarged schematic diagram of point C. In this embodiment, the top of the inner glass cup 1 and the top of the outer glass cup 2 are directly fixedly connected using an integral molding method. In this case, the detection board assembly 3 is directly installed and limited in the area between the top of the inner glass cup 1 and the top of the outer glass cup 2.

[0088] In this embodiment, the annular member 8 is a sealing member for sealing the annular opening 1001, so as to seal the annular opening 1001 while covering the annular opening 1001, thereby preventing water vapor from entering the interlayer 100 through the annular opening 1001 and affecting the detection accuracy and service life of the detection plate 31.

[0089] In addition, in this embodiment, a through hole 82 is formed on the ring member 8 , and the wire 34 on the detection board 31 can extend through the through hole 82 to be electrically connected to the control board 33 .

[0090] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0091] The other structures of the liquid heater of this embodiment are the same as those of the first embodiment, and the liquid heater of this embodiment also has the same technical effects as the liquid heater provided in the first embodiment, which will not be described in detail here. Of course, it is understood that the structure or various parameters (including but not limited to dimensional parameters and control parameters) of the liquid heater of this embodiment can also be applied to other embodiments of the present invention.

[0092] It should be pointed out that the liquid heater provided in the above-mentioned embodiments 1 to 4 of the present invention can be a soymilk maker, or other electrical appliances such as a wall-breaking machine, a kettle, a health pot, etc. The present invention does not make specific limitations on the electrical appliances that are suitable for the liquid heater. As long as the electrical appliances can meet the requirements of processing the slurry, they are liquid heaters protected by the present invention.

[0093] The foregoing description is intended only to provide specific embodiments of the present application, which will enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but is intended to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A liquid heater comprising a glass inner cup and an outer cup sleeved over the glass inner cup, wherein an annular interlayer is formed between the glass inner cup and the outer cup, and a detection plate assembly for detecting the liquid level in the air is provided in the interlayer, characterized in that: An annular opening is provided at the bottom of the interlayer, and the detection plate assembly includes a detection plate and a flexible protective cover that wraps the detection plate. The flexible protective cover is inserted into the interlayer through the annular opening, and the flexible protective cover is tightly pressed against the outer wall of the glass inner cup and the inner wall of the outer cup to clamp the detection plate in the interlayer.

2. The liquid heater according to claim 1, wherein The liquid heater further includes an annular member configured to close the annular opening.

3. The liquid heater according to claim 2, characterized in that The annular member is a sealing member for sealing the annular opening; Alternatively, the annular member is an annular plate formed by extending outward from the outer wall of the glass inner cup or extending inward from the inner wall of the outer cup.

4. The liquid heater according to claim 2, characterized in that The annular member is provided with an installation opening, and the detection plate assembly is inserted into the interlayer through the installation opening after the annular member is installed; Alternatively, the annular member covers the annular opening after the detection plate assembly is inserted into the interlayer through the annular opening.

5. The liquid heater according to any one of claims 1 to 4, characterized in that: The bottom of the interlayer is provided with a guide groove extending upward along the outer wall of the glass inner cup, and the detection board assembly is inserted into the interlayer along the guide groove from the lower end of the guide groove.

6. The liquid heater according to claim 5, characterized in that The guide groove is formed by two convex ribs provided on the outer wall of the inner glass cup or the inner wall of the outer cup; Alternatively, the guide groove is formed by the outer wall of the glass inner cup being recessed toward the center of the glass inner cup; Alternatively, the glass inner cup is a through structure, and the liquid heater also includes a mounting bracket and a heating plate installed at the bottom of the glass inner cup, the mounting bracket is used to support the heating plate and fix it to the glass inner cup, and the heating plate is sealed with the lower opening of the glass inner cup, and the guide groove is provided on the mounting bracket.

7. The liquid heater according to any one of claims 1 to 4, characterized in that: A limiting protrusion is provided on the top of the interlayer, and the top of the flexible protective cover abuts against the limiting protrusion to limit the detection plate.

8. The liquid heater according to any one of claims 1 to 4, characterized in that: The outer wall of the top of the glass inner cup is provided with a step surface protruding outward, the top of the outer cup is sealed with the step surface, and the top of the flexible protective cover abuts against the step surface.

9. The liquid heater according to claim 2, wherein: The annular member is provided with a through hole, and the wire on the detection plate extends out through the through hole.

10. The liquid heater according to any one of claims 1 to 4, characterized in that: The top of the inner glass cup and the top of the outer glass cup are integrally formed; Alternatively, the inner glass cup can be detachably mounted inside the outer cup.

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