Liquid heater

Abstract

The utility model discloses a liquid heater, which belongs to the field of life electric appliances, solves the problem that the mounting quality of a water level detector is difficult to ensure, and adopts the technical scheme that a mounting bracket extending along the height direction is arranged on the outer side of a glass cup body and is hidden between the glass cup body and a shell; a detection plate used for detecting the liquid level across the air is arranged between the installation support and the glass cup body, a groove is formed in the side, facing the glass cup body, of the installation support, the detection plate is positioned in the groove and fixed to the installation support through glue, and the installation support is fixed to the outer side wall of the glass cup body in an adhesion mode through the glue after the glue for fixing the detection plate is solidified. The side, facing the glass cup body, of the detection plate is tightly attached to the outer side wall of the glass cup body through elasticity of glue. The device is mainly used for fixing the detection plate and the mounting bracket into a whole to ensure the quality of the detection plate relative to the mounting bracket, and then fixing the detection plate and the mounting bracket on the glass body to ensure the assembly quality.

Description

Technical Field

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

[0002] In the process of cooking or boiling food in a liquid heating container, the food will produce some non-liquid water or other liquid substances during the cooking process. For example, in the process of making soy milk or boiling rice porridge, some soybeans or white rice are first added to the liquid, and the liquid bean mixture or the liquid rice mixture is heated by a heating device such as a heating tube in the liquid heating container. During the cooking process, the liquid bean mixture or the liquid rice mixture will produce some bubbles, foam, pulp and other pulp substances.

[0003] In the prior art, in order to prevent the slurry from rising to a higher height and overflowing from the liquid heating container, a detection plate for air detection is generally provided on the liquid heating container. For example, the prior art CN 215127293U discloses a kettle, comprising: a kettle body, a heating component and a thermostat are provided at the bottom thereof, and the kettle body is also provided with a temperature detector for detecting the temperature in the kettle body and a water level detector for detecting the water level in the kettle body; a circuit board is provided at the bottom of the kettle body and is electrically connected to the heating component, the thermostat, the temperature detector and the water level detector respectively, and the thermostat can control the operation of the heating component according to the temperature detected by the temperature detector and the water level detected by the water level detector. The kettle provided by the above prior art can accurately and reliably control the heating work of the heating component through the cooperation of the temperature detector and the water level detector, so as to prevent the over-temperature hot water from overflowing the kettle, or to prevent the kettle from drying out to protect the kettle and improve the user experience. The water level detector is a capacitive detector, and the water level detector is provided on the outside of the kettle body. The specific installation method is that the side of the handle close to the kettle body has a connecting part for connecting to the side wall of the kettle body, and the connecting part has a certain length to form a accommodating cavity for installing the water level detector between the handle and the side wall of the kettle body. The water level detector is installed in the accommodating cavity, and the bottom of the water level detector is bent toward one side of the kettle body and is electrically connected to the circuit board located in the installation cavity. The structure is reasonable and compact.

[0004] In the above-mentioned prior art, the handle is generally made of opaque material, and the user will hold the handle during operation, which requires a certain strength of the handle. It is impossible to design the handle into a hollow structure, which results in the inability to observe the installation status of the water level detector during installation, and the installation quality of the water level detector cannot be ensured, which will affect the subsequent water level detection. Utility Model Content

[0005] The purpose to be achieved by the utility model is to provide a liquid heater to solve the problem that it is difficult to ensure the installation quality of the water level detector. First, the detection plate and the mounting bracket are fixed into one body to ensure the installation quality of the detection plate relative to the mounting bracket, and then the two are fixed together to the glass cup body to ensure the installation quality of the detection plate relative to the glass cup body.

[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 shell, the shell is located on the outside of the glass cup body, a mounting bracket extending in the height direction is provided on the outside of the glass cup body, the mounting bracket is hidden between the glass cup body and the shell, a detection plate for detecting the liquid level in the air is provided between the mounting bracket and the glass cup body, a groove is provided on the side of the mounting bracket facing the glass cup body, the detection plate is positioned in the groove and fixed to the mounting bracket by fixing glue, the mounting bracket is fixed to the outer wall of the glass cup body by bonding with the fixing glue after the fixing glue fixing the detection plate is solidified, and the side of the detection plate facing the glass cup body is tightly attached to the outer wall of the glass cup body by utilizing the elasticity of the fixing glue after solidification between the detection plate and the mounting bracket and the elasticity of the fixing glue after solidification between the mounting bracket and the glass cup body.

[0007] After adopting the above technical scheme, the utility model has the following advantages: the detection plate and the mounting bracket are first fixed into one body with fixing glue, which is conducive to checking the fixed connection between the two, ensuring that the fixing glue can be evenly distributed between the detection plate and the mounting bracket, thereby improving the fixing effect of the detection plate relative to the mounting bracket, and also facilitating the mounting bracket to provide uniform elastic support for the detection plate through the solidified fixing glue, and then fix the two together to the glass cup body, which can effectively improve the installation quality of the detection plate relative to the glass cup body; because the fixing glue has a certain elasticity after solidification, the elastic connection between the detection plate and the mounting bracket can be achieved , which plays a certain shock-absorbing role, and then fixes the two to the glass cup body with fixing glue. At this time, only the mounting bracket and the glass cup body are bonded with fixing glue, and no fixing glue is applied between the detection plate and the glass cup body, which will not increase the gap between the detection plate and the glass cup body, ensuring that the detection plate can detect the liquid level in time. The fixing glue between the mounting bracket and the glass cup body will also have a certain elasticity after solidification, so that the side of the detection plate facing the glass cup body can be elastically attached to the outer wall of the glass cup body, which can effectively avoid excessive force on the mounting bracket during assembly, which may cause the detection plate to be squeezed and damaged, and is beneficial to ensuring the assembly quality.

[0008] Furthermore, the outer side wall of the glass body has a mounting area, and the mounting bracket faces the side of the glass body and is located on the side of the groove edge, which is adapted to the surface shape of the mounting area, and the mounting bracket is fitted and fixed to the mounting area.

[0009] By adopting the above-mentioned technical solution, the installation area can be convenient for assembly workers to quickly determine the installation position of the installation bracket, the installation bracket and the installation area will fit better, the installation bracket will exert a more uniform force on the detection plate, and the stability of the detection plate fixation can be improved, which is beneficial to improve the fit between the detection plate and the glass cup body, thereby helping to improve the sensitivity and accuracy of liquid level detection.

[0010] Furthermore, the outer wall of the glass body has an installation area, the surface of the detection plate facing the glass body is adapted to the surface shape of the installation area, and the detection plate fits the installation area; or, the outer wall of the glass body has an installation area, the surface of the installation area is an arc-shaped surface, and the surface of the detection plate facing the glass body is a plane, the detection plate is close to the installation area so that a second gap is formed between the two longitudinal edges of the surface of the detection plate facing the glass body and the surface of the installation area, and the fixing glue of the fixing mounting bracket fills the second gap.

[0011] By adopting the above-mentioned technical solution, the detection plate is fitted with the installation area, thereby increasing the fitting area and fit between the detection plate and the glass cup body, which is naturally beneficial to improving the sensitivity and accuracy of liquid level detection. Alternatively, the second gap is filled with the fixing glue of the fixed mounting bracket, which not only allows the fixing glue of the fixed mounting bracket to flow into the range surrounded by the mounting bracket, and is not easy to overflow to the periphery of the mounting bracket, but also can use the fixing glue filled into the second gap to elastically support and adhere the two longitudinal edges of the detection plate, thereby further improving the reliability of the fixation of the detection plate. In addition, the fixing glue entering the second gap will not change the effect of the local part of the detection plate facing the side of the glass cup body being tightly attached to the installation area, and will not affect the detection function of the detection plate.

[0012] Furthermore, the edges of the detection plate are connected to the mounting bracket via fixing glue, and the side of the detection plate facing away from the glass cup body is sealed via fixing glue.

[0013] The adoption of the above-mentioned technical scheme not only improves the fixing effect, but also can utilize the elasticity of the fixing glue to achieve a certain degree of shock absorption in the horizontal and vertical directions. In addition, in order to enhance the waterproof and dustproof effect of the detection board, the side of the detection board facing away from the glass cup body can be encapsulated with fixing glue. Since the detection board is located in the groove, the mounting bracket can constrain the fixing glue to form a mold, thereby effectively preventing the fixing glue of the encapsulated detection board from overflowing.

[0014] Furthermore, the mounting bracket includes two first brackets extending in the height direction and two second brackets extending in the transverse direction. The two ends of the first bracket are connected by the second bracket. The second bracket is connected to the first bracket to form a frame structure. The groove is located in the frame structure.

[0015] By adopting the above-mentioned technical solution, after the frame structure is formed, it is easy to observe the distribution of the fixing glue between the first bracket and the edge of the detection board, which is beneficial to improving the fixing effect between the installation bracket and the detection board, and the frame structure basically does not block the side of the detection board facing away from the glass cup body, and can also facilitate the fixing glue packaging of the side of the detection board facing away from the glass cup body, and the fixing glue can be confined to the frame structure to avoid overflow.

[0016] Furthermore, a third gap is formed between the second bracket and the upper and lower ends of the detection board, and the fixing glue for fixing the detection board fills the third gap.

[0017] By adopting the above-mentioned technical solution, the third gap is also different from the assembly gap caused by manufacturing tolerance. Instead, it is a structure with a certain width that is specially reserved to facilitate the uniform flow of the fixing glue. Therefore, the fixing glue in the third gap has a certain width and has a certain shock-absorbing effect.

[0018] Furthermore, the second bracket is provided with a limiting rib for limiting the detection plate from being away from the glass cup body, the limiting rib extends to the hollow area between the two first brackets, and the limiting rib abuts against a side of the detection plate away from the glass cup body.

[0019] By adopting the above-mentioned technical solution, the detection plate can be as close as possible to the outer wall of the glass body.

[0020] Furthermore, the mounting bracket includes two first brackets extending in the height direction and connected to each other, and limiting ribs for limiting the detection plate from being away from the glass cup body. The two first brackets are hollowed out to form a groove, and the limiting ribs are against the side of the detection plate away from the glass cup body.

[0021] By adopting the above-mentioned technical solution, after the two first brackets are hollowed out, it is easy to observe the distribution of fixing glue between the first bracket and the edge of the detection plate, which is beneficial to improve the fixing effect between the installation bracket and the detection plate. Moreover, the hollow structure can also facilitate the fixing glue packaging of the side of the detection plate facing away from the glass cup body. The limiting ribs can allow the detection plate to be as close as possible to the outer wall of the glass cup body.

[0022] Furthermore, the limiting rib extends transversely and connects the two first brackets; or, the limiting rib is provided on one of the first brackets and extends to the hollow area between the two first brackets, and the limiting rib is not connected to the other first bracket.

[0023] Furthermore, a first gap is provided between the longitudinal edge of the detection board and the two first brackets, and the first gap is filled with fixing glue for fixing the detection board.

[0024] By adopting the above technical solution, the first gap is different from the assembly gap caused by manufacturing tolerance. Instead, a structure with a certain width is deliberately reserved to facilitate the uniform flow of the fixing glue. Therefore, the fixing glue in the first gap has a certain width and has a certain shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 This is an exploded schematic diagram of the glass cup body, the detection plate, the mounting bracket and the housing in the utility model;

[0027] Figure 2 It is a cross-sectional view of the glass cup body in the utility model at a height position;

[0028] Figure 3 for Figure 2 The enlarged view of point I in the middle;

[0029] Figure 4 for Figure 3 Schematic diagram of removing the detection board;

[0030] Figure 5 This is a schematic diagram of the mounting bracket in the utility model (I);

[0031] Figure 6 It is a schematic diagram of the detection board being fixed to the mounting bracket in the utility model;

[0032] Figure 7 This is a schematic diagram of the mounting bracket in the utility model (II);

[0033] Figure 8 It is a schematic diagram of the mounting bracket in the utility model (III);

[0034] Fig. 9 This is a schematic diagram of the mounting bracket in the utility model (IV);

[0035] Fig.10 This is a schematic diagram of the mounting bracket in the utility model (V). DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0037] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0038] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0039] The utility model provides a liquid heater, such as Figures 1 to 6 As shown, it includes a glass cup body 100 and a shell 300, and the shell 300 is located on the outside of the glass cup body 100. A mounting bracket 42 extending along the height direction is provided on the outside of the glass cup body 100, and the mounting bracket 42 is hidden between the glass cup body 100 and the shell 300. A detection plate 41 for detecting the liquid level in the air is provided between the mounting bracket 42 and the glass cup body 100. A groove 420 is provided on the side of the mounting bracket 42 facing the glass cup body 100. The detection plate 41 is positioned in the groove 420 and fixed to the mounting bracket 42 by fixing glue. After the fixing glue fixing the detection plate 41 is solidified, the mounting bracket 42 is fixed to the outer wall of the glass cup body 100 by bonding with the fixing glue. The side of the detection plate 41 facing the glass cup body 100 is tightly attached to the outer wall of the glass cup body 100 by utilizing the elasticity of the fixing glue.

[0040] In the present invention, the detection plate 41 and the mounting bracket 42 are first fixed together with a fixing glue, which is conducive to checking the fixed connection between the two and ensuring that the fixing glue can be evenly distributed between the detection plate 41 and the mounting bracket 42, thereby improving the fixing effect of the detection plate 41 relative to the mounting bracket 42, and is also conducive to the mounting bracket to evenly elastically support the detection plate through the solidified fixing glue, and then fix the two together to the glass cup body 100, which can effectively improve the installation quality of the detection plate 41 relative to the glass cup body; because the fixing glue has a certain elasticity after solidification, it can realize the elastic connection between the detection plate 41 and the mounting bracket 42, which plays a certain shock-absorbing role, and then the two are fixed to the glass cup body 100. The glass body 100 is fixedly connected by fixing glue. At this time, only the mounting bracket 42 and the glass body 100 are bonded by fixing glue. No fixing glue is applied between the detection plate 41 and the glass body 100, which will not increase the gap between the detection plate 41 and the glass body 100, ensuring that the detection plate 41 can detect the liquid level in time. The fixing glue between the mounting bracket 42 and the glass body 100 will also have a certain elasticity after solidification, so that the side of the detection plate 41 facing the glass body 100 can be elastically attached to the outer wall of the glass body 100, which can effectively avoid excessive force on the mounting bracket 42 during assembly, which may cause the detection plate 41 to be squeezed and damaged, and is beneficial to ensuring the assembly quality of the detection plate.

[0041] The glass cup body 100 can generally be a simple glass product, and the detection board 41 is in direct contact with the glass material. The glass cup body 100 can also include a glass substrate and a film. The film is arranged on the outer side of the glass substrate and can cover part or all of the outer side of the glass substrate. Some marks, such as water level marks, prompt marks, etc., are set on the film. At this time, the outer wall of the glass cup body 100 is the outer side of the film, and the detection board 41 is in contact with the film. In addition, a silk-screen shielding layer, such as ink or film, can be set on the outer wall of the glass cup body 100 to prevent the user from directly observing the detection component through the glass cup body 100 from the inside of the glass cup body 100, thereby improving the aesthetics. The silk-screen shielding layer is considered to be a part of the glass cup body 100, and the outer wall of the glass cup body 100 is the outer side of the silk-screen shielding layer, and the detection board 41 is in contact with the silk-screen shielding layer.

[0042] A heating plate is disposed at the bottom of the glass body 100. The heating plate and the glass body 100 cooperate to form a container for holding liquid. A heating tube is disposed around the center of the heating plate on one side of the heating plate. The heating tube can heat the food in the container when it is working. The housing 300 can only cover a portion of the outer wall of the glass body 100, for example Figure 1The middle shell 300 is designed with a handle 31, which can cover the detection component 400, so that the user can observe the working conditions inside the container through the glass cup body 100, thereby improving the user experience. The shell 300 can also completely cover the outer wall of the glass cup body 100 to protect the glass cup body 100, and an observation window can be opened on the shell 300 to observe the working conditions inside the container. It is a prior art that the detection board 41 realizes the function of liquid level detection, which is generally realized by the sensing electrode sheet. For details, please refer to the signal PCB board mentioned in the prior art CN106108646A, which will not be repeated here.

[0043] In order to facilitate the assembly workers to quickly identify the installation position of the mounting bracket 42, in one embodiment, the outer wall of the glass cup body 100 can be designed to have a mounting area. In order to improve the fit between the mounting bracket 42 and the glass cup body 100, the side 4200 of the mounting bracket 42 facing the glass cup body 100 and located at the edge of the groove 420 can be designed to adapt to the surface shape of the mounting area, and the mounting bracket 42 is fixed to the mounting area. For example, the surface shape of the mounting area is a part of a cylindrical surface, and the surface at the corresponding position on the mounting bracket 42 is also a part of a cylindrical surface. For another example, the surface shape of the mounting area is a part of a conical surface, and the surface at the corresponding position on the mounting bracket 42 is also a part of a conical surface, and so on. The mounting bracket 42 has a better fit with the mounting area, and the force of the mounting bracket 42 on the detection plate 41 will be more uniform, which can improve the stability of the fixation of the detection plate 41, which is conducive to improving the fit between the detection plate 41 and the glass cup body 100, thereby facilitating the improvement of the sensitivity and accuracy of liquid level detection. The installation area can be distinguished from other parts of the outer wall of the glass cup body 100 by adjusting the surface roughness or the shape structure.

[0044] In addition, the surface of the detection plate 41 facing the glass cup body 100 can be adapted to the surface shape of the installation area, and the detection plate 41 can be fitted with the installation area to increase the fitting area and degree of fitting between the detection plate 41 and the glass cup body 100, which is naturally beneficial to improving the sensitivity and accuracy of liquid level detection.

[0045] At present, in the production process of the glass cup body 100, it is more common to make it into a rotating body structure, so the surface of the installation area is generally an arc-shaped surface, and the detection board 41 is a PCB board, and it is more common to have a flat structure, that is, the surface of the detection board 41 facing the glass cup body 100 is a plane. Therefore, after the detection board 41 is close to the installation area, a second gap 4202 will be formed between the two longitudinal edges of the surface of the detection board 41 facing the glass cup body 100 and the surface of the installation area. In order to improve the fixing reliability of the detection board 41, the second gap 4202 can be filled with the fixing glue of the fixed mounting bracket 42. Setting the second gap 4202 can not only allow the fixing glue of the fixed mounting bracket 42 to flow into the range surrounded by the mounting bracket 42, and it is not easy to overflow the glue to the periphery of the mounting bracket 42, but also the fixing glue filled in the second gap 4202 can be used to elastically support and adhere the two longitudinal edges of the detection board 41, thereby further improving the fixing reliability of the detection board 41. In addition, the fixing glue entering the second gap 4202 will not change the effect of the local part of the detection plate 41 facing the side of the glass cup body 100 being tightly attached to the installation area, and will not affect the detection function of the detection plate 41.

[0046] It can be understood that in order to further ensure the reliability of the connection between the detection board 41 and the mounting bracket 42, the edges of the detection board 41 can be connected to the mounting bracket 42 by fixing glue, which not only improves the fixing effect, but also can utilize the elasticity of the fixing glue to achieve a certain degree of shock absorption in the horizontal and vertical directions. In order to enhance the waterproof and dustproof effect of the detection board 41, the side of the detection board 41 facing away from the glass cup body 100 can be encapsulated with fixing glue. Since the detection board 41 is located in the groove 420, the mounting bracket 42 can constrain the fixing glue to form a mold effect, thereby effectively preventing the fixing glue of the encapsulated detection board 41 from overflowing.

[0047] Specifically, the mounting bracket 42 includes two first brackets 421 extending in the height direction and two second brackets 422 extending in the transverse direction. The two ends of the first bracket 421 are connected by the second bracket 422. The second bracket 422 is connected with the first bracket 421 to enclose a frame structure, and the groove 420 is located in the frame structure. After the frame structure is formed, it is convenient to observe the distribution of the fixing glue between the first bracket 421 and the edge of the detection plate 41, which is conducive to improving the fixing effect between the mounting bracket 42 and the detection plate 41. In addition, the frame structure basically does not block the side of the detection plate 41 that is away from the glass cup body 100, and it is also convenient to package the side of the detection plate 41 that is away from the glass cup body 100 with fixing glue, and the fixing glue can be limited to the frame structure to avoid overflow.

[0048] In order to facilitate the entry of fixing glue, a first gap 4201 is formed between the longitudinal edge of the detection plate 41 and the two first brackets 421, and the fixing glue for fixing the detection plate 41 fills the first gap 4201. The first gap 4201 is different from the assembly gap caused by manufacturing tolerances, but is a structure with a certain width specially reserved to facilitate the uniform flow of fixing glue. Therefore, the fixing glue in the first gap 4201 has a certain width and has a certain shock-absorbing effect. For the same reason, in order to facilitate the entry of fixing glue, a third gap 4203 is formed between the second bracket 422 and the upper and lower ends of the detection plate 41, and the fixing glue for fixing the detection plate 41 fills the third gap 4203. The third gap 4203 is also different from the assembly gap caused by manufacturing tolerances, but is a structure with a certain width specially reserved to facilitate the uniform flow of fixing glue. Therefore, the fixing glue in the third gap 4203 has a certain width and has a certain shock-absorbing effect.

[0049] In order to make the detection plate 41 as close to the outer wall of the glass body 100 as possible, a limiting rib 423 can be provided on the second bracket 422 to limit the detection plate 41 from being away from the glass body 100. The limiting rib 423 extends to the hollow area between the two first brackets 421, and the limiting rib 423 is against the side of the detection plate 41 away from the glass body 100. The limiting rib 423 can be as follows: Figure 7 As shown, it is only connected to a second bracket 422, and it can also be connected as shown. Figure 8 As shown, it is connected between two second brackets 422, or it can be connected as shown. Figure 5 As shown, the limiting ribs 423 are connected between the second bracket 422 and the first bracket 421 and can divide the hollow area into a plurality of small spaces, which is convenient for glue filling and packaging, and helps to make the fixing glue more evenly distributed on the side of the detection plate 41 away from the glass cup body 100.

[0050] In another embodiment, the mounting bracket 42 may be designed to include two first brackets 421 extending in the height direction and connected to each other, and a limiting rib 423 for limiting the detection plate 41 from being away from the glass cup body 100. Fig. 9 As shown, the second bracket 422 is eliminated, and the two first brackets 421 are hollowed out to form a groove 420, and the limiting rib 423 is against the side of the detection plate 41 away from the glass cup body 100. After the two first brackets 421 are hollowed out, it is convenient to observe the distribution of the fixing glue between the first bracket 421 and the edge of the detection plate 41, which is conducive to improving the fixing effect between the mounting bracket 42 and the detection plate 41. In addition, the hollow structure can also facilitate the fixing glue encapsulation of the side of the detection plate 41 facing away from the glass cup body 100, and the limiting rib 423 can make the detection plate 41 as close to the outer wall of the glass cup body 100 as possible. On this basis, a first gap 4201 can be formed between the longitudinal edge of the detection plate 41 and the two first brackets 421.

[0051] As for the limiting rib 423, in addition to designing the limiting rib 423 to extend horizontally and connect the two first brackets 421, the limiting rib 423 can also be arranged on one of the first brackets 421 and extend to the hollow area between the two first brackets 421, and the limiting rib 423 is not connected to the other first bracket 421. The limiting rib 423 can also be arranged at the end of the first bracket 421 to improve the limiting effect on the detection board 41.

[0052] In addition, the second bracket 422 may also be Fig.10 As shown, only one is provided and connected between the two first brackets 421 .

[0053] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A liquid heater, comprising a glass body and a shell, wherein the shell is located outside the glass body, characterized in that: A mounting bracket extending in the height direction is provided on the outer side of the glass cup body, the mounting bracket is hidden between the glass cup body and the shell, a detection plate for detecting the liquid level in the air is provided between the mounting bracket and the glass cup body, a groove is provided on the side of the mounting bracket facing the glass cup body, the detection plate is positioned in the groove and fixed to the mounting bracket by fixing glue, the mounting bracket is fixed to the outer side wall of the glass cup body by bonding with the fixing glue after the fixing glue for fixing the detection plate solidifies, and the side of the detection plate facing the glass cup body is tightly attached to the outer side wall of the glass cup body by utilizing the elasticity of the fixing glue between the detection plate and the mounting bracket after solidification and the elasticity of the fixing glue between the mounting bracket and the glass cup body after solidification.

2. The liquid heater according to claim 1, characterized in that The outer side wall of the glass body has a mounting area, and the side of the mounting bracket facing the glass body and located at the edge of the groove is adapted to the surface shape of the mounting area, and the mounting bracket is fitted and fixed to the mounting area.

3. The liquid heater according to claim 1, characterized in that: The outer wall of the glass body has an installation area, the surface of the detection plate facing the glass body is adapted to the surface shape of the installation area, and the detection plate fits the installation area; or, the outer wall of the glass body has an installation area, the surface of the installation area is an arc-shaped surface, the surface of the detection plate facing the glass body is a plane, the detection plate is close to the installation area so that a second gap is formed between the two longitudinal edges of the surface of the detection plate facing the glass body and the surface of the installation area, and the fixing glue of the fixing mounting bracket fills the second gap.

4. The liquid heater according to claim 1, characterized in that The edges of the detection plate are connected to the mounting bracket via fixing glue, and the side of the detection plate facing away from the glass cup body is sealed via fixing glue.

5. The liquid heater according to claim 4, characterized in that: The mounting bracket includes two first brackets extending in the height direction and two second brackets extending in the transverse direction. The two ends of the first bracket are connected by the second bracket. The second bracket is connected with the first bracket to form a frame structure. The groove is located in the frame structure.

6. The liquid heater according to claim 5, characterized in that A third gap is formed between the second bracket and the upper and lower ends of the detection board, and the fixing glue for fixing the detection board fills the third gap.

7. The liquid heater according to claim 5, characterized in that The second bracket is provided with a limiting rib for limiting the detection plate from being away from the glass cup body, the limiting rib extends to the hollow area between the two first brackets, and the limiting rib abuts against a side of the detection plate away from the glass cup body.

8. The liquid heater according to claim 1, characterized in that The mounting bracket includes two first brackets extending in the height direction and connected to each other, and limiting ribs for limiting the detection plate from being away from the glass cup body. A groove is formed by hollowing out the two first brackets, and the limiting ribs are against the side of the detection plate away from the glass cup body.

9. The liquid heater according to claim 8, characterized in that The limiting rib extends transversely and connects the two first brackets; or, the limiting rib is arranged on one of the first brackets and extends to the hollow area between the two first brackets, and the limiting rib is not connected to the other first bracket.

10. The liquid heater according to claim 5 or 8, characterized in that: A first gap is provided between the longitudinal edge of the detection board and the two first brackets, and the first gap is filled with fixing glue for fixing the detection board.

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