Liquid heater

Abstract

The invention belongs to the technical field of life electric appliances, and discloses a liquid heater which comprises a shell, a cup body arranged in the shell in a sleeved mode and a detection plate used for detecting the liquid level in the cup body, the cup body is a glass cup body, a moving space is formed between the cup body and the shell, the detection plate is in a strip shape and is vertically arranged in the moving space, and an abutting piece is fixedly installed on the outer side of the shell. The side wall of the shell is provided with an avoiding through hole for the abutting piece to abut against the detection plate, and after the cup body is installed in the shell, the abutting piece pushes the detection plate to move in the radial direction to abut against the outer side wall of the cup body. According to the liquid heater, the cup body is the glass cup body and is convenient to clean, the detection plate can monitor the liquid level change in the cup body in real time, and the liquid level position, the rising speed and other states can be detected in real time. The installation of the detection plate not only can realize the rapid assembly of the cup body, but also can avoid the deflection of the position of the detection plate, thereby ensuring the effective and accurate detection of the detection plate, and improving the assembly efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and particularly relates to a liquid heater. Background Art

[0002] There are two existing liquid level detection methods for liquid heating appliances, such as in a soymilk maker: one is contact type anti-overflow motor detection, where the slurry overflows during boiling and contacts the anti-overflow electrode, changing the potential of the anti-overflow electrode to achieve anti-overflow detection; the other is non-contact anti-overflow detection, where a capacitive detection plate is provided on the outer side of the cup body, which can avoid contact between the detection plate and the slurry, is convenient to clean and can achieve comprehensive detection of water level and anti-overflow, and the detection is accurate. The capacitive detection plate is generally directly pasted on the outer wall of the cup body, and by sensing the change of the liquid level in the cup body, it can accurately detect the state such as the liquid level position and the rising speed. Through program control, while the liquid is fully heated, overflow can be avoided. However, the detection plate is easily not closely attached to the cup body through the pasting and assembling method, the distance between the water level in the cup body and the detection plate is relatively far, resulting in inaccurate detection. Moreover, as the temperature of the cup body rises, the fitting of the detection plate to the cup body is not firm, there is a risk of the detection plate falling off, and the detection fails.

[0003] There is also an assembly method of a detection plate, such as the solution disclosed in the patent application No. CN201720526032.4: a capacitive water level detection structure is provided on the outer side of a glass cup, including a detection plate closely attached to the outer wall of the glass cup and a capacitive induction plate communicated with the detection plate. A handle shell is sleeved on the handle, and the handle shell includes an arc-shaped cavity that matches and wraps the handle and an installation groove for embedding the capacitive induction plate. The capacitive induction plate is positioned at a preset position adjacent to the outer wall of the glass cup through the handle shell, and the handle shell provides precise positioning for the capacitive induction plate, so that the capacitive induction plate and the outer wall of the stirring cup firmly clamp the detection component.

[0004] However, in existing liquid heating appliances, an outer cup still needs to be sleeved on the outer side of the inner glass cup to prevent the glass cup body from being scalded. The detection plate is installed in the interlayer between the inner cup and the outer cup, and the handle cannot be used for pressing. In the prior art, generally, the detection plate is pre-installed on the inner side wall of the outer cup, and then the inner cup is sleeved into the outer cup. However, during the research process by the inventor, it is found that during the sleeving process of the inner cup, the inner cup and the detection plate will have serious friction, which not only causes the detection plate to be skewed and cannot ensure the detection accuracy, but also makes the assembly of the inner cup difficult and affects the assembly efficiency.

[0005] There is another installation method, which is to set an installation structure on the outer wall of the inner cup, and pre-limit the detection board on the installation structure, so that the detection board is sleeved in the outer cup together with the inner cup. This method will still cause the detection board to shift with the inner cup, resulting in inaccurate detection after the installation is in place. Moreover, since it is difficult to form an installation structure on the outer wall of the glass cup body, this installation method is only applicable to inner cups made of non-glass materials, such as ceramic cups. However, due to the defects of slow heat conduction and slow heat dissipation of the ceramic cup body compared with the glass cup body, when the detection board detects the anti-overflow signal, the control device changes the control program to avoid stopping heating or reducing the heating power. However, there is still a risk of overflow caused by large thermal inertia for the liquid in the ceramic cup, resulting in the problem of insensitive control. In addition, the ceramic cup body is heavy and inconvenient for users to pick up.

[0006] Therefore, the inventor wants to further solve the problems of inaccurate detection of the detection board and low assembly efficiency of the cup body assembly while improving the heating efficiency and control sensitivity in the case where the inner cup is a glass cup body. Summary of the Invention

[0007] The present invention provides a liquid heater, which solves the problem of inaccurate detection of the detection board caused by the non-close contact between the detection board and the cup body after assembly in the prior art without affecting the assembly of the inner cup and the outer cup, further solves the problem of insensitive control of the liquid heater, and realizes accurate liquid level detection and reliable installation of the detection board.

[0008] The technical solution adopted by the present invention is as follows:

[0009] The present invention provides a liquid heater, which includes a housing, a cup body sleeved in the housing, and a detection board for detecting the liquid level in the cup body. The cup body is a glass cup body. An activity space is provided between the cup body and the housing. The detection board is strip-shaped and vertically arranged in the activity space. A pushing member is fixedly installed on the outer side of the housing. An avoidance through hole for the pushing member to push the detection board is opened on the side wall of the housing. After the cup body is inserted into the housing, the pushing member pushes the detection board to move radially until it abuts against the outer side wall of the cup body.

[0010] The liquid heater provided by the present invention uses a glass cup body. Compared with cup bodies made of other non-metallic materials such as ceramics, the glass cup body has good heat conduction performance and high heat transfer efficiency, making the anti-overflow control of the liquid heater sensitive. In addition, the inner wall of the glass cup body is smooth, which is convenient for cleaning, and when preparing the slurry, it can avoid the phenomenon of slurry sticking to the inner wall and bottom burning when the slurry is thick, which is convenient to use and labor-saving to hold. By setting a detection board for detecting the liquid level in the cup body, the detection board is strip-shaped and vertically arranged on the outer side of the glass cup body, and can monitor the change of the liquid level in the cup body in real time, detect the state such as the position where the liquid level is located and the rising speed in real time, realize the comprehensive detection of the water level height of the liquid level in the cup body and the anti-overflow signal, and then match the program control of the liquid heater to avoid the overflow of the slurry or hot water, and can fully boil during the pulping process to improve the taste of the slurry. The detection board can be arranged in the movable space to have a first position. By setting a pushing member and after the cup body is installed in the outer shell, the detection board is pushed by the pushing member to radially move from the first position to a second position where it abuts against the outer side wall of the cup body. According to the assembly progress, the assembly worker can flexibly change the different positions of the detection board. During the stage when the cup body needs to be sleeved, the detection board is kept in the first position to avoid friction between the detection board and the cup body during the process of sleeving the cup body into the outer shell, which may cause the detection board to shift. This can not only realize the rapid assembly of the cup body, but also avoid damage to the detection board, thereby ensuring the effective and accurate detection of the detection board and improving the assembly efficiency. When the cup body has been installed in the outer shell, the detection board is moved to the second position where it abuts against the outer side wall of the cup body, so that the detection board is closer to the liquid in the cup body, improving the sensitivity and accuracy of the detection board. And after the cup body is heated, the detection board can be kept in the second position where it abuts against the cup body, and the positioning of the detection board is reliable and durable, thereby improving the sensitivity and accuracy of the detection board. The pushing member can press the detection board against the outer side wall of the cup body so that the detection board can be reliably kept in the second position where it abuts against the outer side wall of the cup body, and the position of the detection board is stable, ensuring the sensitivity of the detection.

[0011] In a preferred embodiment, a guiding structure is further provided in the movable space. When the cup body is not installed in the outer shell, the detection board is installed in the movable space through the guiding structure.

[0012] By setting the guiding structure, on the one hand, it plays a role in pre-positioning the detection board, keeping the detection board in the first position to avoid falling, and thus facilitating the further movement of the position of the detection board; on the other hand, the guiding structure is in sliding cooperation with the detection board, so that the detection board accurately moves between the first position and the second position under the guiding action of the guiding structure, the detection board moves smoothly without jamming, and avoids the detection board from being skewed when reaching the second position, so that the detection board can be accurately matched with the preset liquid level height of the cup body to perform accurate anti-overflow or water level detection.

[0013] In a preferred embodiment, the guiding structure includes a mounting groove provided on the inner sidewall of the outer shell. The detection plate is mounted in the mounting groove. After the cup body is inserted into the outer shell and fixed to the outer shell, the pushing member pushes the detection plate to slide along the sidewall of the mounting groove.

[0014] The guiding structure includes a mounting groove provided on the inner sidewall of the outer shell. The detection plate is mounted by using the mounting groove, which realizes multi-directional limiting of the detection plate. It can not only vertically limit the length direction of the detection plate, but also limit the left and right directions of the width direction of the detection plate, so that the detection plate is reliably pre-fixed on the outer shell, avoiding the dropping or displacement of the detection plate during the sleeving process of the inner cup, and ensuring the accurate installation position of the detection plate after it moves to the second position. The mounting groove is opened on the inner sidewall of the outer shell, rather than on the outer wall of the glass cup body, which can reduce the grooving difficulty and avoid damaging the glass cup body, improving the production yield and production efficiency.

[0015] In a preferred embodiment, the guiding structure includes a guiding post protruding from the outer side surface of the detection plate and a guiding hole penetrating through the sidewall of the outer shell. After the cup body is inserted into the outer shell and fixed to the outer shell, the pushing member pushes the detection plate to make the guiding post slide relative to the guiding hole.

[0016] The guiding structure includes a guiding post and a guiding hole, with a simple structure and convenient setting. Since the guiding hole penetrates through the sidewall of the outer shell, when the guiding post is inserted into the guiding hole, its outer end can be exposed from the guiding hole, and then it is convenient to use the pushing member to separately push the exposed end of the guiding post to move the position of the detection plate. Therefore, by adopting the combination of the guiding post and the guiding hole, while playing a guiding and limiting role for the detection plate, it also plays a role in reasonably avoiding the shell to move the detection plate, with a compact structure.

[0017] In a preferred embodiment, a spacer is provided between the pushing member and the detection plate. The pushing member presses the spacer, and through the spacer, the detection plate is pressed against the cup body.

[0018] By installing a spacer on the sidewall of the outer shell, the spacer is used to push the detection plate to move from the first position in the moving space to the second position where it abuts against the outer sidewall of the cup body, which is convenient for realizing the indirect pushing of the detection plate, limiting the detection plate to shift on the set route, playing a certain guiding effect. Moreover, generally, an insulating shielding layer and leads and other structures are provided on the outer side surface of the detection plate. Using the movement of the spacer to realize the movement of the detection plate can avoid the shielding layer and leads from being squeezed and damaged by directly pushing the detection plate, and is beneficial for the detection plate to be evenly stressed, ensuring the stable movement of the detection plate and the abutting effect between each part of the detection plate and the cup body after moving to the second position, and ensuring the effective and sensitive detection of the detection plate.

[0019] In a preferred embodiment, the isolation member is mounted on a side wall of the housing, and the detection board is mounted on the isolation member and moves with the isolation member.

[0020] The detection plate is installed on the isolation member and moves with the isolation member. The isolation member can be used to limit the detection plate from the first position to the second position to prevent the detection plate from shifting when there is no guide structure, thereby ensuring that the detection plate is accurately installed after it moves to the second position.

[0021] In a preferred embodiment, the isolation member is an isolation plate, the isolation member is provided with an outwardly protruding mounting post, the side wall of the shell is provided with a mounting hole for the mounting post to extend out, the mounting post and the mounting hole are slidably engaged to allow the isolation member to move radially relative to the shell.

[0022] By arranging a mounting column on the isolating member and arranging a mounting hole on the outer shell, the mounting column and the mounting hole are slidably matched to guide the movement of the isolating member, thereby avoiding the situation where the movement of the isolating member is stuck and the isolating member moves smoothly. At the same time, the mounting column extends from the mounting hole, so that the outer end of the mounting column is exposed from the mounting hole, and then it is convenient to use the push piece to push the exposed end of the mounting column alone to realize the movement of the isolating member. Therefore, the use of the mounting column and the mounting hole can not only realize the vertical limit of the isolating member and the outer shell, but also play a role in guiding the movement of the isolating member, and also play the effect of reasonably avoiding the movement of the shell, and the structure is compact.

[0023] In a preferred embodiment, the isolation member is a silicone member; or, the isolation member is a spring.

[0024] The isolation member is made of spring or silicone, which can provide a certain elastic buffer, so that the push member can reliably abut the detection plate against the cup body, forming a stable connection between the glass cup body, the detection plate and the push member, ensuring the fit between the detection plate and the cup body, and improving the detection effect of the detection plate. The use of silicone also has the effect of flexible connection, avoiding collision between the push member and the detection plate due to hard contact.

[0025] In a preferred embodiment, the push member is a handle; or, the push member is a bolt, and the avoidance through hole is a screw hole that cooperates with the bolt.

[0026] Regardless of whether the push piece adopts a handle or a bolt, the detection plate can be pushed radially inward while the push piece is installed, so that the detection plate moves smoothly. At the same time, the detection plate is pressed against the outer wall of the cup body by the push piece so that the detection plate can be reliably maintained in the second position abutting against the outer wall of the cup body. The position of the detection plate is stable, ensuring the accuracy and reliability of the detection. The push piece adopts a handle to facilitate the removal and placement of the liquid heater, and the detection plate can be installed in a hidden manner. The push piece adopts a bolt, which has a simple structure and is easy to operate.

[0027] In a preferred embodiment, the liquid heater further includes a silica gel pad, which is installed inside the detection board and clamped between the detection board and the outer wall of the cup body;

[0028] By providing the silica gel pad, which is clamped between the detection board and the outer wall of the cup body, hard contact and collision between the detection board and the cup body are avoided, achieving a buffering effect, ensuring that the strip-shaped detection board can fully adhere to the arc-shaped outer wall of the cup body, improving the detection accuracy of the detection board. At the same time, the silica gel pad is beneficial to improving the sealing and waterproof performance of the detection board, preventing the detection board from being damaged by water or becoming insensitive to detection.

[0029] In a preferred embodiment, a crushing knife is provided inside the cup body, and the liquid heater further includes a motor for driving the crushing knife.

[0030] By providing a crushing knife inside the cup body and driving the crushing knife to rotate by the motor, the functions of heating and crushing food materials are realized, meeting the needs of users for preparing soy milk, rice paste, etc., and expanding the various functions of the liquid heater.

[0031] In a preferred embodiment, the outer shell is a transparent outer shell.

[0032] The outer shell can surround the outside of the detection board to protect the detection board. At the same time, the transparent outer shell and the glass cup body enable visualization of the heating state of the liquid inside the cup body, improving the user experience and enhancing the high-class sense of the product. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0034] Figure 1 It is a schematic structural diagram of the liquid heater in Embodiment 1.

[0035] Figure 2 It is an exploded structural diagram of the cup body and the outer shell in Embodiment 1.

[0036] Figure 3 It is a schematic structural diagram of the detection board in Embodiment 1.

[0037] Figure 4 It is a schematic cross-sectional structural diagram of the liquid heater in Embodiment 1.

[0038] Figure 5 It is an installation schematic diagram of the outer shell and the detection board in Embodiments 1 and 2.

[0039] Figure 6Schematic structural diagram of the silica gel pad in one implementation example of Example 1.

[0040] Figure 7 Schematic structural diagram of the silica gel pad in another implementation example of Example 1.

[0041] Figure 8 Schematic cross-sectional structural diagram of the liquid heater in Example 3.

[0042] Figure 9 Exploded view of the cup body and the outer shell in Example 3.

[0043] Figure 10 Installation schematic diagram of the outer shell and the detection board in Example 3.

[0044] Figure 11 Schematic partial cross-sectional structural diagram of the cup body in Example 3.

[0045] Figure 12 Schematic structural diagram of the spacer in Example 3.

[0046] Explanation of reference numerals:

[0047] 100, cup body; 102, cup lid; 101, installation cavity; 200, detection board; 201, water level detection area; 202, anti-overflow detection area; 203, capacitor electrode plate; 300, silica gel pad; 310, first silica gel sheet; 320, second silica gel sheet; 400, handle; 500, crushing knife; 600, control device; 601, motor; 602, heating element; 700, spacer; 701, mounting post; 800, outer shell; 801, mounting groove; 802, mounting hole; 803, avoidance through hole; 804, bolt; 900, guiding structure; 901, guiding post; 902, guiding hole. Detailed implementation manners

[0048] In order to more clearly illustrate the overall concept of the present invention, the following will be described in detail by way of examples in conjunction with the drawings in the specification.

[0049] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from 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, without conflict, the embodiments of the present invention and the features in each embodiment can be combined with each other.

[0050] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0051] In the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can 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 referring to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0053] Embodiment 1

[0054] As Figures 1-7 shown, this embodiment provides a liquid heater, including a housing 800, a cup body 100 sleeved in the housing 800, and a detection board 200 for detecting the liquid level in the cup body 100. The cup body 100 is a glass cup body, and the detection board 200 is strip-shaped and vertically arranged in the movable space between the glass cup body and the housing. As Figure 2As shown in the figure, when the cup body 100 is not installed in the outer shell 800, the detection board 200 is in the first position a installed on the outer shell 800; after the cup body 100 is installed in the outer shell 800, the detection board 200 radially moves from the first position a to the second position b in contact with the outer side wall of the cup body 100. It can be understood that the second position b is closer to the cup body 100 than the first position a, so that after the cup body 100 is installed in the outer shell 800, the detection board 200 is further close to the liquid in the cup body 100, improving the detection accuracy. In addition, the detection board 200 is in contact with the outer side wall of the cup body 100, that is, there is an extrusion force between the detection board 200 and the outer side wall of the cup body 100, and the detection board 200 is closely attached to the outer side wall of the cup body 100. For example, the detection board 200 is pressed against the outer side wall of the cup body 100 by a pushing member. Of course, it should be noted that in fact, when the detection board 200 is in the first position, it is not limited to being located on the outer shell, and it can also be installed outside the glass cup body and kept separated from the outer side wall of the glass cup body.

[0055] As Figure 5 shown, a pushing member is fixedly installed on the outer side of the outer shell 800, and an avoidance through hole 803 for the pushing member to push the detection board 200 is provided on the side wall of the outer shell 800, and the pushing member presses the detection board 200 against the outer side wall of the cup body 100. The pushing member is a bolt 804, and the avoidance through hole 803 is a screw hole matching with the bolt 804.

[0056] As Figure 3 shown, the detection board 200 is provided with a water level detection area 201 and an anti-overflow detection area 202 located above the water level detection area. As Figure 3 shown, above the M line is the anti-overflow detection area 202, and below the M line is the water level detection area 201. Among them, a plurality of capacitor electrodes 203 are respectively arranged in the water level detection area 201 and the anti-overflow detection area 202. To realize the water level and anti-overflow detection when the soybean milk machine prepares different capacities.

[0057] The liquid heater provided by the present invention uses a glass cup body for the cup body 100. Compared with cup bodies made of other non-metallic materials such as ceramics, the glass cup body has good heat conduction performance and high heat transfer efficiency, making the anti-overflow control of the liquid heater sensitive. The inner wall of the glass cup body is smooth, which is convenient for cleaning, and when preparing the slurry, it can avoid the phenomenon of slurry sticking to the inner wall and bottom burning when the slurry is thick, making it convenient to use. By setting a detection plate 200 for detecting the liquid level in the cup body 100, the detection plate 200 is strip-shaped and vertically arranged on the outside of the glass cup body, and can monitor the change of the liquid level in the cup body 100 in real time, and detect the state of the liquid level position and rising speed in real time, so as to realize the comprehensive detection of the water level height and anti-overflow signal of the liquid level in the cup body 100, and then match the program of the liquid heater for sensitive control, avoid the overflow of slurry or hot water, and can fully boil during the pulping process, improving the taste of the slurry. The detection plate 200 has a first position installed on the outer shell 800. After the cup body 100 is installed in the outer shell 800, the detection plate 200 radially moves from the first position to a second position where it abuts against the outer side wall of the cup body 100. According to the assembly progress, the assembly worker can flexibly move the detection plate 200 to different positions. During the stage where the cup body 100 needs to be sleeved, the detection plate 200 is kept in the first position to avoid friction and deflection between the cup body 100 and the detection plate 200 during the process of the cup body 100 being sleeved into the outer shell 800, which can not only realize the rapid assembly of the cup body 100, but also avoid damage to the detection plate 200, thus ensuring the effective and accurate detection of the detection plate 200 and improving the assembly efficiency. When the cup body 100 has been installed in the outer shell 800, the detection plate 200 is moved to the second position where it abuts against the outer side wall of the cup body 100, making the detection plate 200 closer to the liquid in the cup body 100, improving the sensitivity and accuracy of the detection of the detection plate 200, and after the cup body 100 is heated, the detection plate 200 can be kept in the second position where it abuts against the cup body 100, and the positioning of the detection plate 200 is reliable and durable, thereby improving the sensitivity and accuracy of the detection of the detection plate 200.

[0058] In an implementation example of this embodiment, when the detection plate 200 is in the state of the first position a, during the process of the cup body 100 being sleeved onto the outer shell 800 from top to bottom, the detection plate 200 is separated from the outer wall of the cup body 100, that is, clearance fit. A silica gel pad 300 is provided inside the detection plate 200, and the silica gel pad 300 has a clearance fit with the outer wall of the cup body 100.

[0059] Of course, as another implementation example of this embodiment, when the detection plate 200 is located at the first position a, the detection plate 200 and the cup body 100 are in sliding contact and cooperation. When a silicone pad 300 is provided on the inner side of the detection plate 200, the detection plate 200 is in sliding contact and cooperation with the outer wall of the cup body 100 through the silicone pad 300, that is, the contact between the cup body 100 and the silicone pad 300 still belongs to the scope of protection of the present invention. During the installation of the cup body 100, the detection plate 200 and the cup body 100 are in sliding contact, and there is no radial extrusion force between the two. Therefore, even if the detection plate 200 and the cup body 100 are in sliding contact, since the detection plate 200 has a certain strength, it can still reduce the difficulty of installing the cup body 100 without being damaged, and improve the efficiency of installing the cup body 100.

[0060] The liquid heater in this embodiment is a soybean milk machine, such as Figure 1 As shown, the top cover of the cup body 100 is provided with a cup cover 102. Figure 4 As shown, a crushing knife 500 is arranged at the bottom of the cup body 100, and an installation cavity 101 is formed between the bottom of the cup body 100 and the outer shell 800. A motor 601, a control device 600 and a heating element 602 are arranged in the installation cavity 101. The rotating shaft of the motor 601 passes through the bottom wall of the cup body 100 and extends into the cup body 100 to be connected with the crushing knife 500.

[0061] Of course, it should be noted that the liquid heater provided in this embodiment is not limited to the above-mentioned soymilk maker, it can also be a head-type soymilk maker with a motor 601: the liquid heater also includes a head with a built-in motor, and the rotating shaft of the motor passes through the front end of the head and is connected in parallel to the crushing knife.

[0062] Alternatively, the liquid heater further comprises a base, the cup body is detachably mounted on the base, a motor is arranged in the base, a crushing knife is arranged in the cup body, a connector is arranged between the base and the cup body, and the motor is connected to the crushing knife by transmission to form a wall breaking machine. Alternatively, the liquid heater further comprises a base, the cup body is detachably mounted on the base to form a health pot. Of course, the liquid heater can also be a food processor, a hot water kettle, a health pot, a water dispenser, a tea bar machine, etc. that does not require hand washing.

[0063] In this embodiment, if Figure 5As shown in the figure, a guiding structure 900 is provided between the cup body 100 and the outer shell 800. When the cup body is not inserted into the outer shell, the detection plate is installed in the moving space through the guiding structure. The detection plate 200 is vertically limited by the guiding structure 900 to be in the first position, and the detection plate 200 is slidably engaged with the guiding structure 900 to move between the first position and the second position. Among them, the guiding structure 900 includes a mounting groove 801 provided on the inner side wall of the outer shell 800. The detection plate is installed in the mounting groove 801. After the cup body is inserted into the outer shell and fixed to the outer shell, the pushing member pushes the detection plate to slide along the groove side wall of the mounting groove 801. A pushing member is fixedly installed on the outer side of the outer shell 800. As Figure 5 shown, the pushing member is a bolt 804. An avoidance through hole 803 for the pushing member to push the detection plate 200 is provided on the side wall of the outer shell 800. The avoidance through hole 803 is a threaded hole that cooperates with the bolt 804. The pushing member presses the detection plate 200 against the outer side wall of the cup body 100. Of course, in fact, the pushing member can also be a handle 400.

[0064] By setting the installation groove 801 as the guiding structure 900, on the one hand, it plays a role in pre-positioning the detection plate 200, keeping the detection plate 200 in the first position to avoid falling, and thus facilitating the further movement of the position of the detection plate 200; on the other hand, the guiding structure 900 is slidably matched with the detection plate 200, enabling the detection plate 200 to accurately move between the first position and the second position under the guiding action of the guiding structure 900. The detection plate 200 moves smoothly without jamming, and the situation of the detection plate 200 being skewed when reaching the second position is avoided. Furthermore, the detection plate 200 can be accurately matched with the preset liquid level height of the cup body 100 to perform accurate anti-overflow or water level detection. The guiding structure 900 includes the installation groove 801 provided on the inner side wall of the outer shell 800. The detection plate 200 is installed by using the installation groove 801, realizing multi-directional limitation of the detection plate 200. It can not only perform vertical limitation on the length direction of the detection plate 200, but also perform left-right limitation on the width direction of the detection plate 200, making the detection plate 200 reliably pre-fixed on the outer shell 800, avoiding the detection plate 200 from falling or shifting during the process of sleeving the inner cup, and ensuring the accurate installation position of the detection plate 200 after moving to the second position. The installation groove 801 is opened on the inner side wall of the outer shell 800 instead of the outer wall of the glass cup body, which can reduce the grooving difficulty and avoid damaging the glass cup body, improving the production yield and production efficiency. By fixedly installing a pushing member on the outer side of the outer shell 800, whether the pushing member is a handle 400 or a bolt 804, when installing the pushing member, the detection plate 200 can be radially pushed inward incidentally, making the detection plate 200 move smoothly. At the same time, the detection plate 200 is pressed against the outer side wall of the cup body 100 by the pushing member, enabling the detection plate 200 to be reliably held in the second position, with the position of the detection plate 200 being stable, ensuring the accuracy and reliability of the detection. When the pushing member is a handle 400, it is convenient to pick up and place the liquid heater, and the detection plate 200 can be hiddenly installed. When the pushing member is a bolt 804, the structure is simple and the operation is convenient.

[0065] In this embodiment, as Figure 5 shown, the liquid heater further includes a silica gel pad 300. The silica gel pad 300 is installed on the inner side of the detection plate 200. When the detection plate 200 is in the second position, the silica gel pad 300 is clamped between the detection plate 200 and the outer side wall of the cup body 100. Preferably, a sealing cavity for hermetically wrapping the detection plate 200 is provided between the silica gel pad 300 and the housing.

[0066] A silica gel pad 300 is clamped between the outer side wall of the detection board 200 and the cup body 100. The detection board 200 is in close contact with the cup body 100 by squeezing the silica gel pad 300, achieving a flexible buffering effect and avoiding damage caused by hard contact between the capacitor electrode plate 203 and the cup body 100. By providing a sealing cavity that seals and wraps the detection board 200 between the silica gel pad 300 and the positioning structure, the sealing cavity wraps and seals the detection board 200 in multiple directions, improving the waterproof property of the detection board 200 and ensuring the accuracy and effectiveness of the detection.

[0067] In an implementation example of this embodiment, as Figure 6 shown, the silica gel pad 300 is a single-piece type provided on the inner side of the detection board 200. A hem is provided at the edge of the silica gel pad 300 to wrap the detection board 200, improving the waterproof effect of the detection board 200. Of course, in another implementation example of this embodiment, as Figure 7 shown, the silica gel pad 300 includes a first silica gel sheet 310 and a second silica gel sheet 320 clamped on both sides of the detection board 200. One end (upper end) of the second silica gel sheet 320 is integrally connected to the first silica gel sheet 310 and can be folded open relative to the first silica gel sheet 310 for the detection board 200 to be inserted. Of course, in yet another implementation example, the first silica gel sheet 310 and the second silica gel sheet 320 can be separately provided.

[0068] In this embodiment, the outer shell 800 is a transparent outer shell. On the premise of facilitating cleaning of the inner wall by using a glass cup body, visualization of the liquid heating state in the cup body 100 is achieved, improving the user experience and enhancing the high-class sense of the product.

[0069] Embodiment 2

[0070] In this embodiment, as Figure 5 shown, the guiding structure 900 further includes a guiding column 901 protruding from the outer side surface of the detection board 200 and a guiding hole 902 penetrating through the side wall of the outer shell 800. The guiding column 901 is inserted into the guiding hole 902. After the cup body is inserted into the outer shell and fixed to the outer shell, the pushing member pushes the detection board to make the guiding column slide relative to the guiding hole.

[0071] The guiding structure 900 includes the guiding column 901 and the guiding hole 902, with a simple structure and convenient setting. Since the guiding hole 902 penetrates through the side wall of the outer shell 800, the outer end of the guiding column 901 can be exposed from the guiding hole 902 when the guiding column 901 is inserted into the guiding hole 902. Furthermore, it is convenient to use the pushing member to push the exposed end of the guiding column 901 alone to move the position of the detection board 200. Therefore, by using the combination of the guiding column 901 and the guiding hole 902, while playing a guiding and limiting role for the detection board 200, it also plays a role in reasonably avoiding the shell to move the detection board 200, with a compact structure.

[0072] It should be noted that in this embodiment, the guiding structure 900 includes both the installation groove 801, and the guiding posts 901 and guiding holes 902; actually, the guiding structure 900 may also only include the guiding posts 901 and guiding holes 902, omitting the setting of the installation groove 801.

[0073] In addition, it should be noted that in another implementation manner of this embodiment, the positions of the guiding posts 901 and guiding holes 902 can be swapped, that is, the guiding posts 901 are arranged on the side wall of the housing and the guiding holes 902 are arranged on the detection plate 200.

[0074] Embodiment 3

[0075] As Figures 8-12 shown, the difference between this embodiment and Embodiment 1 is that when the detection plate 200 is in the first position a, the detection plate 200 is indirectly installed on the side wall of the housing 800 through the spacer 700. Specifically, the spacer 700 is installed on the side wall of the housing 800, the spacer 700 is limited by the installation groove 801, and the spacer 700 moves radially relative to the housing 800 to push the detection plate 200 from the first position to the second position. The pushing member presses the spacer, and the detection plate is pressed against the cup body through the spacer.

[0076] The detection plate 200 is installed on the spacer 700 and moves with the spacer 700. During the process of the detection plate 200 moving from the first position to the second position, the spacer 700 can be used for limiting, preventing the detection plate 200 from shifting during movement in the absence of the guiding structure 900, and ensuring the accurate installation position of the detection plate 200 after moving to the second position. Specifically, as Figure 10 shown, the detection plate 200 is fixed by being wrapped by the silica gel pad 300 inside the spacer 700. Of course, the detection plate can also be pasted to the spacer 700; or, grooves can be provided on the spacer 700 to install the detection plate 200.

[0077] As Figure 10 shown, the spacer 700 is provided with an outwardly protruding mounting post 701, and the side wall of the housing 800 is provided with a mounting hole 802 for the mounting post 701 to extend out. The mounting post 701 and the mounting hole 802 are slidably matched to enable the spacer 700 to move radially relative to the housing 800.

[0078] By providing the mounting posts 701 on the spacer 700 and the mounting holes 802 on the outer shell 800, the mounting posts 701 and the mounting holes 802 are in sliding fit to realize the guiding of the movement of the spacer 700, avoiding the situation of the spacer 700 getting stuck during movement, and enabling the spacer 700 to move smoothly. At the same time, the mounting posts 701 extend out of the mounting holes 802, making the outer ends of the mounting posts 701 exposed from the mounting holes 802, thus facilitating the use of a pushing member to separately push the exposed ends of the mounting posts 701 to realize the movement of the spacer 700. Therefore, the use of the mounting posts 701 and the mounting holes 802 can not only achieve the vertical limit between the spacer 700 and the outer shell 800, but also play a role in guiding the movement of the spacer 700, and also play an effect of reasonably avoiding the housing for movement, with a compact structure.

[0079] As Figure 10 shown, a pushing member is fixedly installed on the outer side of the outer shell 800, and an avoidance through-hole 803 for the pushing member to push the detection plate 200 is provided on the side wall of the outer shell 800, and the pushing member presses the detection plate 200 against the outer side wall of the cup body 100. Preferably, the pushing member is a handle 400; alternatively, the pushing member is a bolt 804, and the avoidance through-hole 803 is a threaded hole matching the bolt 804.

[0080] By fixedly installing the pushing member on the outer side of the outer shell 800, whether the pushing member is a handle 400 or a bolt 804, the detection plate 200 can be radially pushed inward while the pushing member is being installed, enabling the detection plate 200 to move smoothly. At the same time, by pressing the detection plate 200 against the outer side wall of the cup body 100 with the pushing member, the detection plate 200 can be reliably held in the second position, with the position of the detection plate 200 being stable, ensuring the accuracy and reliability of the detection. When the pushing member is a handle 400, it is convenient to pick up and place the liquid heater, and the detection plate 200 can be hiddenly installed. When the pushing member is a bolt 804, the structure is simple and the operation is convenient.

[0081] It should be noted that in this embodiment, since the detection plate 200 is driven by the spacer 700, the guiding structure 900 can be omitted between the cup body 100 and the outer shell 800. Of course, in practice, the guiding structure 900 can also be added to jointly guide the movement of the detection plate 200 with the spacer 700. Similarly, the pushing member can indirectly drive the movement of the detection plate 200 by pushing the spacer 700, avoiding the situation of damaging the detection plate 200 by directly pushing the detection plate 200.

[0082] In addition, it should be noted that in this embodiment, the spacer is a separator plate. In fact, the spacer can also be a silicone member or a spring.

[0083] In this embodiment, the liquid heater further includes a silica gel pad 300. The silica gel pad 300 is installed inside the detection plate 200. When the detection plate 200 is in the second position, the silica gel pad 300 is clamped between the detection plate 200 and the outer side wall of the cup body 100. Preferably, a sealing cavity that seals and wraps the detection plate 200 is provided between the silica gel pad 300 and the housing. In this embodiment, the sealing cavity is formed between the silica gel pad 300 and the spacer 700.

[0084] By providing the silica gel pad 300, the silica gel pad 300 is clamped between the detection plate 200 and the outer side wall of the cup body 100, avoiding hard contact and collision between the detection plate 200 and the cup body 100, playing a buffering effect, ensuring that the strip-shaped detection plate 200 can be fully attached to the arc-shaped outer side wall of the cup body 100, improving the detection accuracy of the detection plate 200. At the same time, the silica gel pad 300 is beneficial to improving the sealing and waterproof performance of the detection plate 200, preventing the detection plate 200 from being damaged by water or being insensitive to detection.

[0085] Embodiment 4

[0086] In this embodiment, a spacer 700 is installed on the side wall of the outer shell 800. The spacer 700 moves radially relative to the outer shell 800 to push the detection plate 200 from the first position to the second position. Different from Embodiment 3, the detection plate 200 is separately arranged from the spacer 700.

[0087] When the spacer 700 moves inward, the inner side surface of the spacer 700 pushes against the detection plate 200 to make the detection plate 200 move from the first position to the second position. Since the detection plate 200 is separately arranged from the spacer 700, the detection plate 200 can optionally adopt the method of the above Embodiment 1 or 2 to realize the limit installation with the outer shell 800 to maintain the first position.

[0088] By installing the spacer 700 on the side wall of the outer shell 800 and using the spacer 700 to push the detection plate 200 from the first position to the second position, it is convenient to realize the indirect pushing of the detection plate 200, limit the displacement of the detection plate 200 on the set route, playing a certain guiding effect. Moreover, generally, an insulating shielding layer, leads and other structures are arranged on the outer side surface of the detection plate 200. Using the movement of the spacer 700 to realize the movement of the detection plate 200 can avoid the shielding layer and leads from being squeezed and damaged by directly pushing the detection plate 200, and is beneficial to the uniform stress of the detection plate 200, ensuring the stable movement of the detection plate 200 and the abutting effect between each part of the detection plate 200 and the cup body 100 after moving to the second position, ensuring the effective and sensitive detection of the detection plate 200.

[0089] What is not described in the present invention can be realized by adopting or referring to the existing technology.

[0090] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0091] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A liquid heater, characterized in that, it includes a housing, a cup body sleeved inside the housing, and a detection plate for detecting the liquid level in the cup body. The cup body is a glass cup body. An activity space is provided between the cup body and the housing. The detection plate is strip-shaped and vertically arranged in the activity space. A pushing member is fixedly installed on the outer side of the housing, and an avoidance through hole for the pushing member to push the detection plate is provided on the side wall of the housing. After the cup body is inserted into the housing, the pushing member pushes the detection plate to move radially until it abuts against the outer side wall of the cup body.

2. The liquid heater according to claim 1, characterized in that, a guiding structure is further provided in the activity space. When the cup body is not inserted into the housing, the detection plate is installed in the activity space through the guiding structure.

3. The liquid heater according to claim 2, characterized in that, the guiding structure includes an installation groove provided on the inner side wall of the housing. The detection plate is installed in the installation groove. After the cup body is inserted into the housing and fixed to the housing, the pushing member pushes the detection plate to slide along the groove side wall of the installation groove.

4. The liquid heater according to claim 2, characterized in that, the guiding structure includes a guiding post protruding from the outer side surface of the detection plate and a guiding hole penetrating through the side wall of the housing. The guiding post is inserted into the guiding hole. After the cup body is inserted into the housing and fixed to the housing, the pushing member pushes the detection plate to make the guiding post slide relative to the guiding hole.

5. The liquid heater according to claim 1, characterized in that, a spacer is provided between the pushing member and the detection plate. The pushing member presses the spacer, and the detection plate is pressed against the cup body through the spacer.

6. The liquid heater according to claim 5, characterized in that, the spacer is installed on the side wall of the housing, and the detection plate is installed on the spacer and moves with the spacer.

7. The liquid heater according to claim 5, characterized in that, the spacer is provided with an outwardly protruding installation post, and the side wall of the housing is provided with an installation hole for the installation post to extend out. The installation post is slidably matched with the installation hole to enable the spacer to move radially relative to the housing.

8. The liquid heater according to claim 5, characterized in that, the spacer is a silicone member; or, the spacer is a spring.

9. The liquid heater according to claim 1, characterized in that, the pushing member is a handle; or, the pushing member is a bolt, and the avoidance through hole is a screw hole matched with the bolt.

10. The liquid heater according to claim 1, characterized in that, the liquid heater further includes a silicone pad. The silicone pad is installed on the inner side of the detection plate and is clamped between the detection plate and the outer side wall of the cup body; or, a crushing knife is provided inside the cup body, and the liquid heater further includes a motor for driving the crushing knife; or, the housing is a transparent housing.

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