Liquid heater convenient to install

Abstract

The utility model relates to kitchen appliances, in particular to a liquid heater convenient to install, which comprises a glass cup body and a detection plate used for detecting the liquid level across the air, a hollow positioning frame is fixed on the outer side of the peripheral wall of the glass cup body, and one side, facing the glass cup body, of the positioning frame is provided with an attaching portion tightly attached to the outer surface of the peripheral wall of the glass cup body. A hollow groove for containing the detection plate is defined by the attaching part and the glass cup body, after the detection plate is installed in the hollow groove, glue pouring treatment is conducted on the hollow groove so as to package the detection plate, and the minimum attaching width between the attaching part and the glass cup body is not smaller than 1.5 mm. According to the liquid heater disclosed by the utility model, a better positioning structure is designed for mounting the detection plate, so that the detection plate can be more conveniently and reliably positioned on the glass cup body, the problem of glue overflow is not easy to occur in a glue filling process, and a better effect of packaging the detection plate can be achieved with a smaller glue filling amount.

Description

Technical Field

[0001] The utility model relates to a kitchen appliance, in particular to a liquid heater which is easy to install. 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 tube glass cup body, 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 is likely to cause the denaturation of the viscose, which not only affects the adhesive effect of the detection board for long-term use, but also the denatured viscose may cause damage to the printed circuit on the detection board. Based on this, how to reliably position and install the rigid liquid level detection board on the outer wall of the arc-shaped 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 easy to install. The liquid heater is designed with a better positioning structure for installing the detection plate, so that the detection plate can be positioned on the glass cup body more conveniently and reliably. Moreover, in the process of glue filling, glue overflow is not likely to occur, and a better effect of packaging the detection plate can be achieved with a smaller amount of glue filling.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid heater that is easy to install, comprising a glass cup body and a strip-shaped detection plate for detecting the liquid level in the air, the detection plate being vertically installed on the peripheral wall of the glass cup body, and characterized in that: a hollow positioning frame is fixed to the outer side of the peripheral wall of the glass cup body, the positioning frame has a fitting portion that is tightly attached to the outer surface of the peripheral wall of the glass cup body facing the glass cup body, the fitting portion and the glass cup body are enclosed to form a hollow groove for accommodating the detection plate, after the detection plate is installed in the hollow groove, the hollow groove is filled with glue to encapsulate the detection plate, and the minimum fitting width between the fitting portion and the glass cup body is not less than 1.5 mm.

[0007] Furthermore, the outer surface of the peripheral wall of the glass body is curved, and the fitting portion has a fitting curved surface that matches the peripheral wall of the glass body.

[0008] Furthermore, the outer surface of the peripheral wall of the glass cup body is curved. When the detection plate is located in the hollow groove, the detection plate divides the hollow groove into an outer groove chamber and an inner groove chamber connected to the outer groove chamber. The inner groove chamber is formed by the detection plate and the peripheral wall of the glass cup body. When the outer groove chamber is filled with glue, the glue is also filled into the inner groove chamber at the same time.

[0009] Furthermore, the outer surface of the peripheral wall of the glass body is in the shape of a curved surface convex outward, and the inner groove chamber is formed between the two side edges of the detection plate and the peripheral wall of the glass body;

[0010] Alternatively, the outer surface of the peripheral wall of the glass body is in the shape of a curved surface that is concave toward the center of the glass body, the inner tank chamber is formed between the detection plate and the glass body, and the horizontal cross section of the inner tank chamber is in the shape of a crescent;

[0011] Alternatively, located in the hollow groove, a plurality of connecting notches for connecting the outer groove chamber with the inner groove chamber are arranged on the inner peripheral wall of the positioning frame, and the glue poured into the outer groove chamber flows to the inner groove chamber through the connecting notches.

[0012] Further, the positioning frame includes a first side and a second side extending along the height direction of the glass body, and a third side connecting the first side and the second side, and the positioning frame has an opening arranged opposite to the third side, and the hollow groove is an open groove with one side open;

[0013] Alternatively, the positioning frame includes an annular main frame, the fitting portion is protruding relative to the annular main frame toward one side of the glass cup body, and the fitting portion is not connected end to end along the edge of the annular main frame, so that the hollow groove surrounded by the fitting portion is formed into an open groove with one side open.

[0014] Furthermore, after the positioning frame is positioned on the glass body, the detection plate is installed into the opening groove through the opening.

[0015] Furthermore, the fitting portion is arranged in a ring shape around the edge of the positioning frame, and the hollow groove surrounded by the fitting portion is a closed groove;

[0016] Alternatively, after the positioning frame is positioned on the glass body, the detection plate is installed in the hollow groove;

[0017] Alternatively, the positioning frame is located in the hollow groove, a holding portion is provided on the positioning frame, the positioning frame is installed on the glass cup body together with the detection plate, and the positioning frame holds the detection plate in the hollow groove through the holding portion.

[0018] Furthermore, the top of the positioning frame has a hooking portion hooked on the edge of the glass body, and the positioning frame is pre-positioned on the glass body through the hooking portion;

[0019] Alternatively, a cup seat is fixed to the bottom of the glass body, and the bottom of the positioning frame has a pre-positioning structure that matches the cup seat;

[0020] Alternatively, the fitting portion is provided with adhesive, and the positioning frame is fixed to the outer surface of the peripheral wall of the glass cup body by the adhesive.

[0021] Furthermore, a shielding member covering the positioning frame is arranged on the outside of the glass body.

[0022] Furthermore, the shielding member is a handle or an operating panel;

[0023] Alternatively, the shielding member is a cup body shell sleeved on the outside of the glass cup body;

[0024] Alternatively, after the glue filling process, the shielding member presses the positioning frame and is fixed to the outer side of the glass body.

[0025] Most of the existing liquid heaters use tubular glass to make the cup body. Due to the fragility of the tubular glass material, it is impossible to set screw positions, buckle positions and other structures on the glass surface to fix the detection plate. Of course, fiberglass, tempered glass, bulletproof glass and the like with higher strength and thickness can meet the above requirements, but this type of glass material greatly increases the manufacturing cost. Moreover, the thickness of the glass is relatively thick, which also significantly increases the weight of the cup body, making it inconvenient for consumers to use and unable to achieve mass application. Based on this, the prior art generally uses glue to bond the soft detection plate, or fixes the detection plate by positioning the handle. However, the manufacturing cost of the soft detection plate is high, and the soft detection plate is easy to be damaged, which greatly increases the subsequent maintenance cost. And the positioning by the handle is easy to form assembly tolerance, causing the detection plate to be offset relative to the glass cup body, and the detection accuracy will also be reduced. Moreover, a positioning structure for positioning the handle is also provided on the glass cup body, which increases the manufacturing difficulty.

[0026] For the present application, a hollow positioning frame is fixed on the outer side of the peripheral wall of the glass cup body, and the positioning frame and the glass cup body form a hollow groove for accommodating the detection board. The hollow groove can realize the positioning function of the detection board and realize the accurate installation of the detection board on the peripheral wall of the glass cup body. In addition, after the detection board is installed in the hollow groove, the hollow groove is filled with glue. After a period of standing, the detection board can be firmly fixed on the outer wall of the glass cup body, which effectively solves the problem of the inability to position and fix the hard detection board on the outer wall of the tube glass cup body in the prior art. At the same time, the hollow groove is filled with glue to achieve the waterproof sealing problem of the detection board. Furthermore, the positioning frame has a fitting portion on the side facing the glass body, which is in close contact with the outer surface of the peripheral wall of the glass body. The minimum fitting width between the fitting portion and the glass body is not less than 1.5 mm, which can effectively achieve surface-to-surface fitting between the fitting portion and the glass body. Therefore, in the process of pouring glue into the hollow groove, the glue is not easy to overflow from the gap between the fitting portion and the glass body, thereby ensuring the effective use of the glue and solving the problems of difficult cleaning and waste of glue after overflow. In addition, compared with the traditional method of pouring glue that wraps the entire detection board as a whole, the technical solution of the utility model is more convenient to install, and the amount of glue used is also less, and the problem of overflow and waste of glue is not easy to occur. At the same time, it can also achieve the effect of better positioning and packaging the detection board. Moreover, the technical solution of the present application has lower manufacturing costs and higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a structural schematic diagram of a glass cup body of a first embodiment of a liquid heater of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure in which the positioning frame is installed on the glass body in Example 1;

[0030] Figure 3 for Figure 2 Schematic diagram of the local section in the XX direction;

[0031] Figure 4 for Figure 3 The structural diagram of the detection board;

[0032] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0033] Figure 6 for Figure 5 A schematic cross-sectional view along the YY direction;

[0034] Figure 7 This is a schematic diagram of the structure of the third embodiment of the liquid heater of the utility model;

[0035] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0036] Fig. 9 for Figure 7 Schematic diagram of the exploded installation structure of the detection board. DETAILED DESCRIPTION

[0037] Embodiment 1:

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The figure shows a partial structural diagram of a liquid heater of the utility model. The liquid heater is a health pot that can be used to cook beverages. It includes a glass cup body 1, the outer surface of the peripheral wall of the glass cup body 1 is a curved surface structure that bulges outward, and a hollow positioning frame 2 is vertically installed on the outer side of the peripheral wall of the glass cup body 1, and the positioning frame 2 has a fitting portion 21 that is tightly attached to the outer surface of the peripheral wall of the glass cup body 1 on the side facing the glass cup body 1. In this embodiment, the fitting portion 21 is provided with adhesive (not shown in the figure), and the positioning frame 2 is pre-fixed to the outer surface of the peripheral wall of the glass cup body 1 by the adhesive. And the fitting portion 21 and the glass cup body 1 are enclosed to form a hollow groove 10 for accommodating the detection plate 3, wherein the detection plate 3 is installed in the hollow groove 10 after the positioning frame 2 is glued and fixed to the glass cup body 1, and finally the hollow groove 10 is filled with glue to encapsulate the detection plate 3.

[0039] In this embodiment, the positioning frame 2 is annular in structure, and the fitting portion 21 is also annularly arranged around the edge of the positioning frame 2, so that the hollow groove 10 surrounded by the fitting portion 21 is formed into a closed groove. When the hollow groove 10 is filled with glue, the detection board 3 is completely enclosed in the hollow groove 10.

[0040] Moreover, in the present embodiment, the fitting portion 21 has a fitting curved surface adapted to the peripheral wall of the glass cup body 1. When the detection plate 3 is located in the hollow groove 10, the detection plate 3 divides the hollow groove 10 into an outer groove chamber 102 and an inner groove chamber 101, and the inner groove chamber 101 is formed between the two side edges of the detection plate 3 and the peripheral wall of the glass cup body 1. In the present embodiment, there is a gap between the detection plate 3 and the positioning frame 2, so that the inner groove chamber 101 is connected to the outer groove chamber 102. When the outer groove chamber 102 is filled with glue, the glue will flow into the inner groove chamber 101 along the gap between the detection plate 3 and the positioning frame 2. After the glue is left to stand for a period of time and solidified, the packaging of the detection plate 3 can be realized, and the packaged detection plate 3 will be fixed to the positioning frame 2 and the glass cup body 1 as a whole.

[0041] In addition, in the present embodiment, the detection board 3 is installed on the outer wall of the glass cup body 1 for detecting the height of the liquid level in the glass cup body 1 in the air, so that there is no need to set a separate liquid level electrode in the glass cup body 1 for detection, which is not only convenient for users to clean, but also avoids directly setting a mounting structure on the glass cup body 1 for installing the liquid level electrode, which can greatly reduce the scrap rate of the glass cup body 1, improve the yield rate, and reduce the production cost of the product. In the present embodiment, a plurality of capacitor electrodes 31 are provided on the side of the detection board 3 facing the glass cup body 1, and the capacitor electrodes 31 form a liquid level detection area. At the same time, a signal processing area is provided on the other side of the detection board 3 to install a processing chip (not shown in the figure). The processing chip processes the capacitance value generated by each capacitor electrode 31 to obtain a liquid level signal and realize accurate detection of the liquid level.

[0042] Most of the existing liquid heaters use tubular glass to make the cup body. Due to the fragility of the tubular glass material, it is impossible to set screw positions, buckle positions and other structures on the glass surface to fix the detection plate. Of course, fiberglass, tempered glass, bulletproof glass and the like with higher strength and thickness can meet the above requirements, but this type of glass material greatly increases the manufacturing cost. Moreover, the thickness of the glass is relatively thick, which also significantly increases the weight of the cup body, making it inconvenient for consumers to use and unable to achieve mass application. Based on this, the prior art generally uses glue to bond the soft detection plate, or fixes the detection plate by positioning the handle. However, the manufacturing cost of the soft detection plate is high, and the soft detection plate is easy to be damaged, which greatly increases the subsequent maintenance cost. And the positioning by the handle is easy to form assembly tolerance, causing the detection plate to be offset relative to the glass cup body, and the detection accuracy will also be reduced. Moreover, a positioning structure for positioning the handle is also provided on the glass cup body, which increases the manufacturing difficulty.

[0043] In this embodiment, a hollow positioning frame is fixed on the outer side of the peripheral wall of the glass cup body, and the positioning frame and the glass cup body form a hollow groove for accommodating the detection board. The hollow groove can realize the positioning function of the detection board, and realize that the detection board is more accurately installed at the corresponding position on the peripheral wall of the glass cup body, so as to achieve the accuracy of detection. In addition, after the detection board is installed in the hollow groove, the hollow groove is filled with glue. After the glue is left to solidify for a period of time, the detection board can be firmly fixed on the outer wall of the glass cup body, which effectively solves the problem that the rigid detection board cannot be accurately positioned and fixed on the outer wall of the tube glass cup body in the prior art. At the same time, the hollow groove is filled with glue, which can also solve the waterproof sealing problem of the detection board. In addition, the positioning frame also has a fitting part that is close to the outer surface of the peripheral wall of the glass cup body on the side facing the glass cup body, so that in the process of filling the hollow groove with glue, the glue is not easy to overflow from the gap between the fitting part and the glass cup body, which ensures the effective use of the glue and solves the problem of difficult cleaning and glue waste after the overflow. In addition, compared with the traditional method of filling the entire test board with glue, the technical solution of this embodiment is more convenient to install, and the amount of glue used is also less, and it is not easy to have the problem of glue overflow and waste. At the same time, it can also achieve the effect of better positioning and packaging the test board. Moreover, the technical solution of this embodiment has lower manufacturing cost and higher production efficiency.

[0044] It should be noted that, in this embodiment, the positioning frame is fixed to the outer surface of the peripheral wall of the glass cup body by means of glue. Of course, the fitting installation method of the positioning frame and the glass cup body is not limited to gluing. The positioning frame can also be pressed against the outer wall of the glass cup body by means of press-fitting of other components. Moreover, in this embodiment, the purpose of fitting the positioning frame to the glass cup body is to prevent the glue from overflowing from the gap between the positioning frame and the glass cup body during the glue pouring process. The inventors have found through research that when the outer surface of the glass cup body is a plane, the minimum fitting width D (e.g., 0.045mm) between the fitting portion of the positioning frame and the glass cup body is 0.02mm. Figure 3 The width D of the bonding part (as shown in the figure) is required to be no less than 1.5mm, so that a good surface-to-surface bonding relationship can be formed between the bonding part and the outer surface of the peripheral wall of the glass cup body, so that during the glue pouring process, the glue is not easy to overflow from the gap between the two. It should be pointed out that when the bonding surface and the outer surface of the glass cup body are curved surfaces, the bonding width D can also be understood as the bonding arc length of the two surfaces in the cross section. Generally, when it is a curved surface, the bonding arc length is not less than 2mm.

[0045] For this embodiment, the hollow groove is not limited to a closed groove. For example, the positioning frame includes a first side and a second side extending along the height direction of the glass cup body, and a third side connecting the first side and the second side, and the positioning frame has an opening arranged opposite to the third side, and the hollow groove is an open groove with one side open; or, the positioning frame includes an annular main frame, the fitting portion is convexly arranged toward one side of the glass cup body relative to the annular main frame, and the fitting portion is not connected end to end along the edge of the annular main frame, so that the hollow groove surrounded by the fitting portion is formed as an open groove with one side open. When the hollow groove is an open groove with an opening on one side, the detection board can be installed into the open groove through the opening after the positioning frame is positioned to the glass cup body. At this time, after the upper end of the detection board is against the upper end wall of the hollow groove, it is considered that the detection board is installed in place. Of course, the signal processing area on the detection board can also be exposed to the positioning frame through the opening. When the hollow groove is glued, it is only necessary to encapsulate the liquid level detection area on the detection board. For this embodiment, a wiring harness is generally provided on the signal processing area of ​​the detection board for electrical connection with the main control. For a closed slot, the wiring harness is routed through the hollow part, and for an open slot, the wiring harness can be routed through the opening part.

[0046] At the same time, in this embodiment, the positioning frame is the positioning basis for the detection plate to be accurately positioned on the outer wall of the glass body. Therefore, during the installation process, it is necessary to ensure that the positioning frame can be accurately positioned on the glass body. In this embodiment, it is necessary to use tooling, for example, with the upper end of the glass mouth or the lower end of the glass body as the positioning reference, and then glue the positioning frame to the outer wall of the glass body.

[0047] It should also be noted that the detection board of this embodiment can detect both water level signals and overflow prevention signals, and a plurality of capacitor electrodes can be provided on the detection board for detecting different overflow prevention positions. Moreover, for this embodiment, the above structural changes can also be applied to other embodiments of the utility model.

[0048] Embodiment 2:

[0049] like Figure 5 , Figure 6 As shown, this is the second embodiment of the utility model. The difference between this embodiment and the first embodiment is that the outer surface of the peripheral wall of the glass cup body 1 is a curved surface that is concave toward the center of the glass cup body 1, and the inner groove chamber 101 is formed between the detection plate 3 and the glass cup body 1, and the horizontal cross-section of the inner groove chamber 101 is crescent-shaped.

[0050] At the same time, the positioning frame includes an annular main frame 22, the fitting portion 21 is convexly arranged relative to the annular main frame 22 toward the side of the glass body 1, and the main annular main frame 22 is provided with a holding portion 23 for pressing the detection plate 3 against the glass body 1, and an elastic member 4 is provided between the holding portion 23 and the detection plate 3, and the holding portion 23 presses the detection plate 3 against the glass body 1 through the elastic member 4. In this embodiment, the elastic member 4 is an elastic silicone pad or a rubber member.

[0051] Moreover, in the present embodiment, a plurality of connecting notches 200 for connecting the outer groove chamber 102 with the inner groove chamber 101 are arranged on the inner peripheral wall of the positioning frame in the hollow groove, and the plurality of connecting notches 200 are staggeredly distributed on both sides of the positioning frame, and the glue poured into the outer groove chamber 102 flows from the connecting notches 200 to the inner groove chamber 101. After the glue pouring is completed, after standing for a period of time, the glue in the inner groove chamber 101 and the outer groove chamber 102 solidifies, and the detection board 3 is packaged, thereby realizing the positioning, fixation and waterproof sealing of the detection board 3.

[0052] For this embodiment, it has the same beneficial effects as the first embodiment, which will not be described here. It should also be noted that the changes in the above structure of this embodiment can also be applied to other embodiments of the utility model.

[0053] Embodiment three:

[0054] like Figure 7 , Figure 8 , Fig. 9The figure shows a schematic diagram of the structure of the third embodiment of the utility model. The liquid heater of this embodiment is a food processor. For this embodiment, the detection plate 3 is also positioned on the outer wall of the glass body 1 through the positioning frame 2, wherein the top of the positioning frame 2 has a hook portion 24 hooked on the edge of the glass body 1, and the positioning frame 2 is pre-positioned on the glass body 1 through the hook portion 24. At the same time, a shielding member covering the positioning frame 2 is also provided on the outer side of the positioning frame 2. In this embodiment, the shielding member is a handle 5 that hides the positioning frame 2.

[0055] In this embodiment, the positioning frame is first positioned on the outer wall of the glass body through the hook part, and then the detection board is installed in the hollow groove enclosed by the positioning frame and the glass body, and finally the hollow groove is filled with glue to encapsulate the detection board. After the glue is filled, the handle is fixed to the outside of the glass body. Of course, after the glue filling process, the positioning frame can also be auxiliary pressed by the handle to prevent the positioning frame from falling off. For this embodiment, the detection board has the dual protection of the positioning frame and the handle, which can avoid the problem of damage to the detection board due to external force.

[0056] It should be noted that, for this embodiment, the shielding member is not limited to the handle disclosed in this embodiment, and the shielding member may also be a shell fixed to the outer wall of the glass cup body, the shell hiding the positioning frame, and the shell may also be an operation panel for controlling the food processor. Alternatively, the shielding member may also be a cup body shell mounted on the outer side of the glass cup body, so that the food processor has a double-layer cup structure.

[0057] In addition, for this embodiment, the positioning frame is fixed to the outside of the glass cup body by hooking for pre-positioning, and the pre-positioning structure of the positioning frame is not limited to hooking. For example, a cup seat is fixed at the bottom of the glass cup body, and the lower end of the positioning frame can also be pre-positioned on the cup seat to achieve pre-positioning of the positioning frame and the glass cup body before installing the detection plate.

[0058] Similarly, this embodiment has the same beneficial effects as the above embodiments, and this embodiment will not be described in detail. It should be noted that the above structural changes of this embodiment can also be applied to other embodiments of the utility model.

[0059] In addition, it should be noted that the liquid heater of the utility model is not limited to the food processor with integrated motor and cup body disclosed in the embodiment of the utility model, but can also be a soymilk machine with motor mounted on top, a wall-breaking machine with cup body and machine base separated, and a food processor that can realize automatic pulp discharge and automatic cleaning without hand washing. Moreover, the liquid heater of the utility model can also be applied to heating appliances for beverage production such as pulp boiling operation and rice paste making, such as health pots, health pots, etc.

[0060] 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 that is easy to install, comprising a glass body and a strip-shaped detection plate for detecting the liquid level in the air, wherein the detection plate is vertically installed on the peripheral wall of the glass body, and is characterized in that: A hollow positioning frame is fixed to the outer side of the peripheral wall of the glass cup body, and the positioning frame has a fitting portion facing the glass cup body and tightly attached to the outer surface of the peripheral wall of the glass cup body. The fitting portion and the glass cup body are combined to form a hollow groove for accommodating the detection board. After the detection board is installed in the hollow groove, the hollow groove is filled with glue to encapsulate the detection board. The minimum fitting width between the fitting portion and the glass cup body is not less than 1.5mm.

2. The liquid heater that is easy to install according to claim 1, characterized in that: The outer surface of the peripheral wall of the glass body is in a curved shape, and the fitting portion has a fitting curved surface that matches the peripheral wall of the glass body.

3. The liquid heater that is easy to install according to claim 1, characterized in that: The outer surface of the peripheral wall of the glass cup body is curved. When the detection plate is located in the hollow groove, the detection plate divides the hollow groove into an outer groove chamber and an inner groove chamber connected to the outer groove chamber. The inner groove chamber is formed by the detection plate and the peripheral wall of the glass cup body. When the outer groove chamber is filled with glue, the glue is filled into the inner groove chamber at the same time.

4. The liquid heater that is easy to install according to claim 3, characterized in that: The outer surface of the peripheral wall of the glass cup body is in the shape of a curved surface convex outward, and the inner groove chamber is formed between the two side edges of the detection plate and the peripheral wall of the glass cup body; Alternatively, the outer surface of the peripheral wall of the glass body is in the shape of a curved surface that is concave toward the center of the glass body, the inner tank chamber is formed between the detection plate and the glass body, and the horizontal cross section of the inner tank chamber is in the shape of a crescent; Alternatively, located in the hollow groove, a plurality of connecting notches for connecting the outer groove chamber with the inner groove chamber are arranged on the inner peripheral wall of the positioning frame, and the glue liquid poured into the outer groove chamber flows to the inner groove chamber through the connecting notches.

5. The liquid heater that is easy to install according to claim 1, characterized in that: The positioning frame includes a first side and a second side extending along the height direction of the glass body, and a third side connecting the first side and the second side, and the positioning frame has an opening arranged opposite to the third side, and the hollow groove is an open groove with one side open; Alternatively, the positioning frame includes an annular main frame, the fitting portion is protruding relative to the annular main frame toward one side of the glass cup body, and the fitting portion is not connected end to end along the edge of the annular main frame, so that the hollow groove surrounded by the fitting portion is formed into an open groove with one side open.

6. The liquid heater that is easy to install according to claim 5, characterized in that: After the positioning frame is positioned to the glass body, the detection plate is installed into the opening groove through the opening.

7. The liquid heater that is easy to install according to claim 1, characterized in that: The fitting portion is arranged in a ring shape around the edge of the positioning frame, and the hollow groove surrounded by the fitting portion is a closed groove; Alternatively, after the positioning frame is positioned on the glass body, the detection plate is installed in the hollow groove; Alternatively, the positioning frame is located in the hollow groove, a holding portion is provided on the positioning frame, the positioning frame is installed on the glass cup body together with the detection plate, and the positioning frame holds the detection plate in the hollow groove through the holding portion.

8. The liquid heater that is easy to install according to claim 1, characterized in that: The top of the positioning frame has a hooking portion hooked on the edge of the glass body, and the positioning frame is pre-positioned on the glass body through the hooking portion; Alternatively, a cup seat is fixed to the bottom of the glass body, and the bottom of the positioning frame has a pre-positioning structure that matches the cup seat; Alternatively, the fitting portion is provided with adhesive, and the positioning frame is fixed to the outer surface of the peripheral wall of the glass cup body by the adhesive.

9. The liquid heater that is easy to install according to claim 1, characterized in that: A shielding piece covering the positioning frame is arranged on the outside of the glass body.

10. The liquid heater that is easy to install according to claim 9, characterized in that: The shielding member is a handle or an operating panel; Alternatively, the shielding member is a cup body shell sleeved on the outside of the glass cup body; Alternatively, after the glue filling process, the shielding member presses the positioning frame and is fixed to the outer side of the glass body.

Images