Liquid heater

Abstract

The utility model relates to kitchen appliances, in particular to a liquid heater, which comprises a glass cup body and a mounting seat fixed at the bottom of the glass cup body, a detection plate for detecting the height of a liquid level across the air is arranged on the outer wall of the glass cup body, and the detection plate is strip-shaped and extends along the height direction of the glass cup body. The glass cup is characterized in that a surrounding rib extending upwards along the outer wall of the glass cup body is integrally formed on the mounting seat, a mounting groove is formed in the outer wall of the glass cup body by the surrounding rib, and the detection plate is mounted in the mounting groove. According to the liquid heater, a good installation structure is designed, the detection plate can be reliably positioned on the outer wall of the glass cup body, position deviation is not prone to occurring, operation is convenient and fast, installation is easy, and detection is more accurate.

Description

Technical Field

[0001] The utility model relates to a kitchen appliance, in particular to a liquid heater. Background Art

[0002] Prior art CN201610753199.4 discloses that a signal PCB board is provided between the cup body and the hand-held handle of a food processor, and a metal sheet is provided on the signal PCB board. When the volume of the food in the cup body changes, the capacitor formed by the metal sheet and the food in the cup body will generate a charge signal, and the signal PCB board will then transmit the charge signal to the control circuit board. The control circuit board can judge the height of the current food liquid level in the cup body according to the transmitted signal. At the same time, the control circuit board controls the electric heating element or the knife group according to the current liquid level, thereby effectively controlling the change of the liquid level of the food and preventing food from overflowing. However, in this solution, there is an installation gap between the signal PCB board and the cup body, and the signal PCB board has no reliable positioning structure relative to the cup body, and the relative positions of the two are not fixed. Based on this, the signal PCB board cannot accurately identify the overflow signal. Therefore, the above-mentioned food processor still does not completely solve the problem of food overflow.

[0003] In order to make the detection plate and the cup body have a relatively better positioning relationship. The applicant previously proposed a patent with application number CN201720526032.4. The patent discloses that the capacitive sensing plate is positioned on the outer wall of the glass cup through a handle shell. During the installation process, two symmetrical and oppositely spliced ​​and fixed handle covers need to clamp the handle while clamping the capacitive sensing plate, so as to achieve the positioning of the capacitive sensing plate while fixing the handle shell, and ensure the relative position relationship between the capacitive sensing plate and the glass cup body. Although in this solution, the capacitive sensing plate and the glass cup body are in a relatively fixed relationship and no displacement will occur between the two, in this structure, a handle is required to be provided on the glass cup body to position the handle shell, and then the capacitive sensing plate is fixed and limited by the positioning of the handle shell. Not only is the installation structure complicated, but also when there is an assembly error between the handle shell and the handle, it will cause the capacitive sensing plate to detect the liquid level signal inaccurately. What's more, the existing food processing machines or health pots use a large amount of tubular glass, and tubular glass cannot be integrally formed into a handle structure on the glass cup body. Therefore, the above solution cannot be applied to tubular glass cup bodies.

[0004] In addition, the prior art CN201921962352.X also discloses a capacitive continuous liquid level detection structure and an electric kettle thereof. In this scheme, the outer surface of the kettle body of the electric kettle is an arc-shaped structure, so a soft PFB board is pasted on the outer wall of the kettle body. Although the soft PFB board can solve the problem of installing the liquid level detection board on the glass cup body of the tube material, the soft PFB board has a higher manufacturing cost and is more prone to damage. Moreover, during the boiling process of the electric kettle, the high temperature of the outer wall of the kettle can easily cause the denaturation of the adhesive, which not only affects the adhesive effect of the detection board for long-term use, but also the denatured adhesive may cause damage to the printed circuit on the detection board. Based on this, how to reliably position and install the liquid level detection board on the outer wall of the glass cup body has always been a difficulty for R&D engineers who want to apply the remote detection technology to kitchen appliances to detect liquid levels. Utility Model Content

[0005] The purpose to be achieved by the utility model is to provide a liquid heater, which is designed with a better installation structure, can realize reliable positioning of the detection plate on the outer wall of the glass cup body, is not prone to position displacement, and is easy to operate, simple to install, and more accurate in detection.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid heater, comprising a glass cup body and a mounting base fixed to the bottom of the glass cup body, a detection plate for detecting the liquid level height in the air is arranged on the outer wall of the glass cup body, the detection plate is strip-shaped and extends along the height direction of the glass cup body, and is characterized in that: the mounting base is integrally formed with a rib extending upward along the outer wall of the glass cup body, the rib forms a mounting groove on the outer wall of the glass cup body, and the detection plate is installed in the mounting groove.

[0007] Furthermore, the outer wall of the glass body forms the bottom wall of the mounting groove, and the detection surface of the detection plate is arranged closely against the outer wall of the glass body;

[0008] Alternatively, the mounting groove has a bottom plate forming a bottom wall, and the bottom plate is integrally formed with the mounting seat.

[0009] Furthermore, the outer wall of the glass body has a mounting plane along the height direction, and after the mounting seat is fixed to the glass body, the mounting groove is located on the mounting plane.

[0010] Furthermore, the detection board is glue-filled and packaged in the installation groove.

[0011] Furthermore, a mounting shell covering the detection plate is arranged on the outer side of the glass body.

[0012] Furthermore, the detection plate is pressed into the mounting groove by the mounting housing;

[0013] Alternatively, the mounting housing includes a handle assembly.

[0014] Furthermore, the outer side of the detection board is wrapped with a silicone sleeve, and the silicone sleeve seals the detection board in the installation groove.

[0015] Further, the mounting groove includes an upper mounting groove corresponding to the glass cup body and a lower mounting groove corresponding to the mounting seat, the upper mounting groove is connected to the lower mounting groove, and the detection board includes a detection section installed with a capacitor electrode and a processing section installed with a chip, the detection section is located in the upper mounting groove, and the processing section is located in the lower mounting groove;

[0016] Alternatively, a positioning portion is provided in the installation groove, and the end of the detection plate is pressed against the positioning portion to realize the positioning of the detection plate relative to the glass cup body.

[0017] Furthermore, the end of the installation groove is open, and a slide groove is provided on the inner side wall of the installation groove, and the detection plate is installed into the installation groove along the slide groove from the opening.

[0018] Furthermore, the liquid heater further comprises a heating plate, and the heating plate is sealed and clamped between the glass body and the mounting seat;

[0019] Alternatively, the mounting seat is screwed onto the bottom of the glass body, and the glass body and the mounting seat are combined to form a liquid container;

[0020] Alternatively, the mounting seat includes a connecting portion fixed to the glass body and a heating portion for heating the liquid in the glass body.

[0021] Most of the existing liquid heaters use tubular glass to make the cup body. Due to the fragility of tubular glass, it is impossible to set screw positions, snap positions and other structures on the glass surface to fix the detection plate. Of course, fiberglass, tempered glass, bulletproof glass and other materials with higher strength and thickness can meet the above requirements, but these glass materials greatly increase the manufacturing cost and cannot be used in batches. Based on this, the existing technology generally uses gluing or internal and external handle positioning to install the detection plate. However, the environment in which the liquid heater is used will cause the gluing effect to gradually deteriorate, affecting the accuracy of the detection when the liquid heater is used for a long time, and tubular glass cannot be integrally formed with a built-in handle to fix the external handle.

[0022] As for the present application, the mounting seat is fixed to the bottom of the glass body, and the mounting seat is integrally formed with ribs, and the ribs are enclosed on the outer wall of the glass body to form a mounting groove, so that the detection plate can be more conveniently installed in the mounting groove, which effectively solves the problem that the detection plate of the prior art cannot be directly fixed on the outer wall of the glass body. At the same time, since the mounting seat and the glass body are relatively fixed structures, the mounting seat forms a fixed reference relative to the glass body, and the ribs are integrally formed on the mounting seat, therefore, the mounting groove formed by the ribs can form a positioning reference for the detection plate, so that the detection plate can be more accurately positioned on the outer wall of the glass body. Compared with the prior art, the detection plate of the utility model is more convenient to install on the glass body, and the positioning is more accurate. At the same time, it is not necessary to set any fixed structure on the outer wall of the glass body, nor is it necessary to install the detection plate by gluing, which can effectively prevent the detection plate from shifting and installation offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of the first embodiment of the liquid heater of the utility model;

[0025] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0026] Figure 3 for Figure 1 Schematic diagram of the decomposition structure;

[0027] Figure 4 for Figure 1 Another schematic diagram of the structure of the glass body;

[0028] Figure 5 This is a structural schematic diagram of a second embodiment of the liquid heater of the utility model;

[0029] Figure 6 for Figure 5 Schematic diagram of the exploded structure in the middle. DETAILED DESCRIPTION

[0030] Embodiment 1:

[0031] like Figure 1 , Figure 2 , Figure 3The figure shows a schematic diagram of the structure of a liquid heater of the utility model. The liquid heater is a hand-free food processor for making soy milk beverages, comprising a machine body (not shown) and a cup assembly installed in the machine body, wherein the cup assembly comprises a glass cup body 1 and a mounting seat 2 fixed to the bottom of the glass cup body 1, and a detection plate 3 for detecting the liquid level in the air is arranged on the outer wall of the glass cup body 1, and the detection plate 3 is strip-shaped and extends along the height direction of the glass cup body 1, and a rib 21 extending upward along the outer wall of the glass cup body 1 is integrally formed on the mounting seat 2, and the rib 21 forms a mounting groove 20 on the outer wall of the glass cup body 1, and the detection plate 3 is installed in the mounting groove 20.

[0032] In this embodiment, the glass cup body 1 is a through structure, and a heating plate 4 is provided at the opening at the bottom of the glass cup body 1. The mounting seat 2 is screwed to the bottom of the glass cup body 1 through threads, and the heating plate 4 is sealed and clamped to the opening at the bottom of the glass cup body 1, so that the heating plate 4 forms the bottom wall of the container. Among them, the outer wall of the glass cup body 1 is integrally die-cast with a mounting plane 11 in the height direction, and after the mounting seat 2 is fixed to the glass cup body 1, the ribs 21 extend upward from the bottom of the mounting plane 11, and the mounting plane 11 forms the bottom wall of the mounting groove 20. The detection surface of the detection plate 3 is set close to the mounting plane 11. Since the mounting plane 11 is planar, the detection plate 3 can be more tightly attached to the mounting plane 11, which is not only conducive to improving the detection accuracy of the detection plate 3, but also more convenient for the subsequent fixation of the detection plate 3.

[0033] At the same time, in the present embodiment, the detection board 3 includes a detection section 31 on which a capacitor electrode (not shown) is installed and a processing section 32 on which a chip (not marked in the figure) is installed, and the mounting groove 20 includes an upper mounting groove 201 whose bottom wall is formed by the outer wall of the glass cup body and a lower mounting groove 202 whose bottom wall is formed by the outer wall of the mounting seat, and the upper mounting groove 201 is connected to the lower mounting groove 202, wherein the detection section 31 is located in the upper mounting groove 201, and the processing section 32 is located in the lower mounting groove 202. In this way, the chip on the processing section 32 located in the lower mounting groove 202 can be isolated by the outer wall of the mounting seat 2, and during the heating process of the liquid in the glass cup body 1, the heat transfer to the chip can be reduced, thereby effectively reducing the heat of the chip. At the same time, the liquid level height range detected by the detection section 31 can also be larger, realizing a wider range of pulping.

[0034] In order to better fix the detection board 3 on the glass body 1, in this embodiment, after the detection board 3 is installed in the installation groove 20, glue is poured into the installation groove 20 to form a glue layer 5 on the outside of the detection board 3, and the detection board 3 is encapsulated in the installation groove 20. On the one hand, the fixation of the detection board 3 relative to the glass body 1 is protected, and the glue layer 5 can also seal the edge of the detection board 3 and the outer wall of the glass body 1 to prevent the presence of water or water vapor between the detection board 3 and the outer wall of the glass body 1, which affects the accuracy of subsequent liquid level detection.

[0035] At the same time, since the detection plate 3 is used to detect the height of the liquid level in the glass body 1, the specific installation position of the detection plate 3 relative to the glass body 1 has particularly high requirements. Even if the detection plate 3 is installed in the installation groove 20, while the detection plate 3 is fixed, the detection plate 3 may slip in the installation groove 20, thereby changing the positioning of the detection plate 3 relative to the glass body 1, seriously affecting the subsequent detection of the liquid level height. Based on this, for this embodiment, a positioning part is also provided in the installation groove 20 to position the detection plate 3 and prevent the detection plate 3 from slipping. The positioning part can be the groove wall at the upper and lower ends of the installation groove 20. When installed, the end of the detection plate 3 is pressed against the groove wall, which can realize the positioning of the detection plate 3 relative to the glass body 1. Of course, the positioning part can also be a positioning column provided in the installation groove 20, and a corresponding positioning hole is provided on the detection plate 3. The positioning of the detection plate 3 relative to the glass body 1 is realized by the cooperation of the positioning column and the positioning hole. Furthermore, the structure of the positioning portion is not limited to the solution disclosed in this embodiment. Any structure that can achieve the positioning function in the prior art can also be applied to the liquid heater of the present utility model.

[0036] Existing liquid heaters generally use gluing or internal and external handle positioning to install the detection plate. However, the environment in which the liquid heater is used will cause the gluing effect to gradually deteriorate, affecting the accuracy of detection during long-term use of the liquid heater, and the tube glass cannot be integrally formed with a built-in handle to fix the external handle.

[0037] As for the present embodiment, the mounting seat is fixed to the bottom of the glass body, and the mounting seat is integrally formed with ribs, and the ribs are enclosed on the outer wall of the glass body to form a mounting groove, so that the detection board can be more conveniently installed in the mounting groove, which effectively solves the problem that the detection board in the prior art cannot be directly fixed on the outer wall of the glass body. At the same time, since the mounting seat and the glass body are relatively fixed structures, the mounting seat forms a fixed reference relative to the glass body, and the ribs are integrally formed on the mounting seat, therefore, the mounting groove formed by the ribs can form a positioning reference for the detection board, so that the detection board can be more accurately positioned on the outer wall of the glass body. Compared with the prior art, the detection board of this embodiment is more convenient to install on the glass body, and the positioning is more accurate. At the same time, there is no need to set any fixed structure on the outer wall of the glass body, nor is there any need to install the detection board by gluing, which can effectively prevent the detection board from shifting and installing offset.

[0038] It should be noted that in this embodiment, the mounting plane on the glass body forms the bottom wall of the mounting groove, so that the detection plate and the mounting plane are in close contact, which is more conducive to improving the detection accuracy and sensitivity of the detection plate. Of course, if the sensitivity and accuracy of the detection are not so high, the following method can also be adopted: the mounting groove has a bottom plate forming the bottom wall, and the bottom plate and the mounting seat are integrally formed, and the detection plate is encapsulated on the bottom plate by glue filling, which can also achieve the fixation of the detection plate. Although this solution cannot achieve the detection plate close to the glass body, the sealing performance of the detection plate is higher, which can effectively prevent the detection plate from failing due to water ingress. Moreover, even if the glass body is cracked and needs to be replaced, there is no need to destroy the glue filling of the detection plate, and product replacement and maintenance are more convenient.

[0039] Moreover, in the present embodiment, since the glass cup body is die-cast glass, an inner plane can also be set on the inner wall of the glass cup body and on the side opposite to the installation plane, so that the capacitor electrode on the detection board is parallel to the liquid level, the fluctuation of the capacitance value is more significant, and the detection is more reliable. In addition, since in the present embodiment, the detection board is encapsulated in the installation groove by glue pouring, during the glue pouring process, the flowing glue may enter the installation gap between the glass cup body and the mounting seat, or even enter the glass cup body, affecting food safety. Based on this, in order to solve this technical problem, a sealing ring can be set at the bottom of the detection board, and the installation gap can be sealed first and then glue pouring can be performed, or a Newtonian fluid with poor fluidity can be selected to reduce the glue from entering the installation gap.

[0040] In addition, for this embodiment, during the process of glue filling the detection plate, the detection plate may slip under the impact of the glue gun, so the detection plate needs to be pre-fixed during the manufacturing process. The pre-fixing method can also adopt the following scheme: the upper end and / or the lower end of the installation groove is open, and a slide groove is provided on the inner side wall of the installation groove, and the detection plate is installed into the installation groove along the slide groove from the opening.

[0041] It should also be noted that, for this embodiment, the glass cup body can also be tubular glass, or even a glass cup body with a bottom wall, that is, a full glass cup body. When it is a full glass cup body, the mounting seat is equivalent to a cup holder fixed to the bottom of the glass cup body, which is used to protect and insulate the glass cup body. Of course, the mounting seat can also form the bottom wall of the cup body. After the mounting seat is fixed to the penetrating glass cup body, the glass cup body and the mounting seat are together enclosed to form a liquid container. Alternatively, the mounting seat itself includes a connecting portion fixed to the bottom of the glass cup body and a heating portion for heating the liquid in the glass cup body. Of course, in this embodiment, the detection plate for realizing remote liquid level detection does not need to cooperate with the glass cup body, and cup bodies made of other non-conductive materials can also be used, such as ceramic cups, plastic cups, etc. And, as Figure 4 As shown, for the glass cup body of this embodiment, a positioning groove 12 cooperating with the ribs can also be provided on the outer wall of the glass cup body 1, which not only prevents the glue from leaking out during the glue pouring process, but also has the function of positioning the ribs.

[0042] It should be noted that the changes in the above structure of this embodiment can also be applied to other embodiments of the utility model.

[0043] Embodiment 2:

[0044] like Figure 5 , Figure 6 The figure shows a schematic diagram of the structure of the second embodiment of the utility model. The food processing machine in this embodiment is a soybean milk machine with a bottom motor. Similarly, the mounting seat 2 is also fixed to the bottom of the glass body 1, and is used to support the heating plate 4, so that the heating plate 4 is sealed and clamped between the glass body 1 and the mounting seat 2. The difference from the first embodiment is that the outer side of the detection plate 3 is wrapped with a silicone sleeve 6, and the detection plate 3 is wrapped with the silicone sleeve 6 and then installed in the installation groove (not shown in the figure). At the same time, the outer side of the glass body 1 is also provided with a mounting shell for covering the detection plate 3. In this embodiment, the mounting shell is a handle 7 fixed to the outer side of the glass body 1, and the handle 7 presses the silicone sleeve 6 and the detection plate 3, so that the detection plate 3 is pressed and sealed in the mounting groove.

[0045] In this embodiment, the silicone sleeve 6 includes a base portion 61 and a cover portion 62 with one end hinged to the base portion 61 and the other end flippable relative to the base portion 61. When the cover portion 62 covers the base portion 61, the detection board 3 is sealed in the cavity enclosed by the cover portion 62 and the base portion 61. In this embodiment, the detection board 3 is first loaded into the cavity enclosed by the cover portion 62 and the base portion 61 to form a detection board assembly. Then the detection board assembly is fixed in the mounting groove, and finally the handle 7 is fixed. The upper end of the handle 7 is hooked on the edge of the glass cup body 1, and the lower end is fixed on the mounting seat 2. When the lower end of the handle 7 is fixed to the mounting seat 2, the detection board assembly is pressed tightly in the mounting groove.

[0046] For the structure of this embodiment, the installation of the detection board is also very convenient. Compared with the first embodiment, when the detection board fails, this solution can easily remove the old detection board and replace it with a new one, and the installation and maintenance are also very convenient. Of course, the installation shell of this embodiment is not limited to the handle disclosed in this embodiment. The installation shell can also be a cup body shell mounted on the outside of the glass cup body, or a panel assembly installed on one side of the glass cup body.

[0047] Similarly, this embodiment has the same beneficial effects as the first embodiment, and this embodiment will not be described in detail. It should be noted that the above structural changes and parameter selections of this embodiment can also be applied to other embodiments of the utility model.

[0048] In addition, it should be noted that the liquid heater of the utility model is not limited to the motor-under-mounted food processor and the hand-wash-free food processor disclosed in the embodiments of the utility model, but can also be a motor-over-mounted soybean milk machine and a wall-breaking machine with a cup body and a base separated. Moreover, the liquid heater of the utility model can also be applied to heating appliances that can perform pulp boiling operations, rice paste making, etc., such as health pots, health pots, water pots, water dispensers, etc.

[0049] Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A liquid heater, comprising a glass body and a mounting base fixed to the bottom of the glass body, wherein a detection plate for detecting the liquid level in the air is arranged on the outer wall of the glass body, and the detection plate is strip-shaped and extends along the height direction of the glass body, characterized in that: The mounting seat is integrally formed with a rib extending upward along the outer wall of the glass cup body, the rib forms a mounting groove on the outer wall of the glass cup body, and the detection plate is installed in the mounting groove.

2. The liquid heater according to claim 1, characterized in that: The outer wall of the glass body forms the bottom wall of the mounting groove, and the detection surface of the detection plate is arranged closely against the outer wall of the glass body; Alternatively, the mounting groove has a bottom plate forming a bottom wall, and the bottom plate is integrally formed with the mounting seat.

3. The liquid heater according to claim 1, characterized in that: The outer wall of the glass body has a mounting plane along the height direction. After the mounting seat is fixed to the glass body, the mounting groove is located on the mounting plane.

4. The liquid heater according to claim 1, characterized in that: The detection board is glue-filled and packaged in the installation groove.

5. The liquid heater according to claim 1, characterized in that: The outer side of the glass body is provided with a mounting shell covering the detection plate.

6. The liquid heater according to claim 5, characterized in that: The detection plate is pressed into the installation groove by the installation shell; Alternatively, the mounting housing includes a handle assembly.

7. The liquid heater according to claim 1, characterized in that: The outer side of the detection board is wrapped with a silicone sleeve, and the silicone sleeve seals the detection board in the installation groove.

8. The liquid heater according to claim 1, characterized in that: The mounting groove includes an upper mounting groove corresponding to the glass cup body and a lower mounting groove corresponding to the mounting seat, the upper mounting groove is connected to the lower mounting groove, and the detection board includes a detection section installed with a capacitor electrode and a processing section installed with a chip, the detection section is located in the upper mounting groove, and the processing section is located in the lower mounting groove; Alternatively, a positioning portion is provided in the installation groove, and the end of the detection plate is pressed against the positioning portion to realize the positioning of the detection plate relative to the glass cup body.

9. The liquid heater according to claim 1, characterized in that: The end of the installation groove is open, and a slide groove is arranged on the inner side wall of the installation groove, and the detection plate is installed into the installation groove along the slide groove from the opening.

10. The liquid heater according to claim 1, characterized in that: The liquid heater further comprises a heating plate, which is sealed and clamped between the glass body and the mounting seat; Alternatively, the mounting seat is screwed onto the bottom of the glass body, and the glass body and the mounting seat are combined to form a liquid container; Alternatively, the mounting seat includes a connecting portion fixed to the glass body and a heating portion for heating the liquid in the glass body.

Images