Inner container assembly and water drinking equipment

Abstract

The embodiment of the utility model provides an inner container assembly and drinking water equipment. The inner container assembly comprises an inner container, the inner container comprises a container body and a bottom wall, the bottom wall comprises a horizontal wall located in the middle and extending horizontally and an arc-shaped wall extending upwards from the outer edge of the horizontal wall and protruding outwards, the top end of the arc-shaped wall is connected with the bottom end of the container body, and a water outlet is formed in the horizontal wall; and the heating assembly is arranged on the outer side of the arc-shaped wall. In the embodiment, the bottom wall of the inner container is provided with the arc-shaped wall, cleaning is convenient, and working noise can be lowered. Moreover, the horizontal wall extending horizontally is arranged in the middle of the bottom wall, the water outlet is formed in the horizontal wall, the water outlet is convenient to process, and the inner container can conveniently supply water outwards from the water outlet in the bottom without dumping the inner container.

Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, and particularly relates to an inner container assembly and a drinking water device. Background Art

[0002] The current inner container of an electric thermos usually has a flat bottom wall of the inner container, but there are easily cleaning dead corners at the connection between the bottom wall and the side wall, and it is difficult to clean the scale at this place. Moreover, the space at the bottom of the inner container is small, the power density is large, and the noise is large. Summary of the Utility Model

[0003] Therefore, the purpose of the utility model is to provide an inner container assembly and a drinking water device to solve at least one of the problems existing in the above-mentioned prior art or related art.

[0004] An embodiment of the first aspect of the utility model provides an inner container assembly, which includes: an inner container, the inner container includes a body and a bottom wall, the bottom wall includes a horizontal wall located in the middle and extending horizontally and an arc wall extending upward and protruding outward from the outer edge of the horizontal wall, the top end of the arc wall is connected to the bottom end of the body, and a water outlet is arranged on the horizontal wall; a heating assembly, arranged on the outer side of the arc wall.

[0005] For the inner container assembly provided by the embodiment of this aspect, the bottom wall of the inner container has an outwardly convex arc wall, so that the top end of the arc wall is connected to the bottom end of the body, and the connection between the edge of the bottom wall and the body is not easy to deposit scale and there will be no cleaning dead corners, which is convenient for cleaning the inner container. Moreover, the heating assembly is arranged on the outer side of the arc wall, and the surface area of the arc wall is large, which can increase the heating area, reduce the power density and reduce the noise.

[0006] In addition, the bottom center of the bottom wall of the inner container is a horizontal wall, and a water outlet is opened on the horizontal wall, which is convenient for the liquid in the inner container to be discharged through the water outlet. In this way, when the user needs to drink the liquid in the inner container, there is no need to pour the inner container, which can be applied to large-capacity drinking water devices and is convenient for water outlet. Moreover, compared with directly opening a water outlet on the arc wall, the design of the horizontal wall is convenient for the processing of the water outlet, convenient for the pipeline joint to be connected to the horizontal wall outside the water outlet to communicate with the water outlet, and also convenient for installing a seal at the water outlet to avoid liquid leakage.

[0007] In some embodiments, there is a set distance between the edge of the water outlet and the outer edge of the horizontal wall. A certain area of the horizontal wall is reserved outside the water outlet, which is convenient for the pipeline joint to be firmly connected to the horizontal wall outside the water outlet to communicate with the water outlet, and also convenient for installing a seal at the water outlet to reduce the probability of water leakage.

[0008] In some embodiments, the bottom wall further includes a connecting wall extending vertically upward from the top end of the arc wall, the height of the connecting wall is between 2 mm and 10 mm, and the connecting wall is welded to the bottom end of the body.

[0009] In these embodiments, a vertically upward extending connecting wall is used for welding connection with the bile body, and the height of the connecting wall is greater than or equal to 2 mm, which is convenient for welding and is conducive to firmly connecting the two together. Moreover, the height of the connecting wall does not exceed 10 mm, which is convenient for clamping the bottom wall and extending into the inner side of the bottom wall to process the bottom wall when processing the inner container, especially the bottom of the bottom wall, and avoids inconvenient processing caused by too high connecting wall.

[0010] In some embodiments, the area where the heating component covers the arc wall is the heating area, and the inner container assembly further includes: a liquid level detection device, which is arranged on the inner container and is used for detecting whether the liquid level in the inner container is lower than the upper edge of the heating area.

[0011] Since the heating component is arranged on the outer side of the arc wall, the heating areas are not arranged in the same horizontal plane and there is a height difference. When the liquid level in the inner container is lower than the upper edge of the heating area, the part of the heating area not covered by the liquid will have a dry burning phenomenon, and the temperature is very high, which easily causes the temperature rise of the surrounding plastic parts not to meet the requirements. Therefore, in this embodiment, the liquid level detection device is used to timely detect whether the liquid is lower than the upper edge of the heating area. When the inner container assembly is applied to a drinking water device, it is convenient for the drinking water device to timely control the heating component to stop heating according to the detection result of the liquid level detection device, so as to avoid the dry burning phenomenon and improve the use safety of the product.

[0012] In some embodiments, the liquid level detection device includes a first detection electrode and a second detection electrode. The first detection electrode and the second detection electrode form a detection circuit. The first detection electrode is arranged above the heating area on the bottom wall and is close to the upper edge of the heating area, or the first detection electrode is arranged in the heating area and is close to the upper edge of the heating area. The second detection electrode is lower than the first detection electrode, or the second detection electrode is at the same height as the first detection electrode; wherein, when the liquid in the inner container is lower than the first detection electrode, the detection circuit is disconnected to generate a signal that the liquid level in the inner container is lower than the upper edge of the heating area.

[0013] In these embodiments, when the first detection electrode is higher than the upper edge of the heating area, and when the liquid in the inner container is just below the first detection electrode and may not actually be below the upper edge of the heating area yet, the liquid detection device promptly determines that the liquid level is below the upper edge of the heating area, generating a signal that the liquid level in the inner container is below the upper edge of the heating area. This is beneficial for promptly controlling the heating component to stop heating and preventing dry burning. Of course, the first detection electrode can also be arranged within the heating area on the bottom wall and be close to the upper edge of the heating area. In this way, when the liquid level is just below the upper edge of the heating area but not much lower, the liquid level detection device can generate a signal that the liquid level in the inner container is below the upper edge of the heating area, which is also beneficial for promptly controlling the heating component to stop heating and avoiding excessive temperature rise of the plastic parts around the heating area.

[0014] In some embodiments, the inner container assembly further includes: a temperature detection device arranged on the inner container for detecting the temperature of the liquid inside the inner container. This is beneficial for promptly understanding the liquid temperature and whether the liquid is heated to the appropriate level.

[0015] In some embodiments, the temperature detection device includes a conductive outer shell and a temperature measurement element located inside the conductive outer shell. The temperature measurement element detects the temperature of the liquid inside the inner container through the heat transferred by the conductive outer shell. The area of the arc-shaped wall covered by the heating component is the heating area. The conductive outer shell extends into the inner container and is arranged close to the upper edge of the heating area. The inner container assembly further includes a detection electrode arranged on the bottom wall. The detection electrode is lower than the conductive outer shell or at the same height as the conductive outer shell. The detection electrode and the conductive outer shell together constitute a liquid level detection device. When the liquid in the inner container is below the conductive outer shell, the liquid level detection device generates a signal that the liquid level in the inner container is below the upper edge of the heating area.

[0016] In these embodiments, the temperature detection device and the liquid level detection device are integrated. The conductive outer shell of the temperature detection device is used as one detection electrode of the liquid level detection device, and another detection electrode is equipped to cooperate with this electrode to form a detection circuit. The structure is simple, the number of components is reduced, and the cost is saved. Moreover, compared with separately arranging the temperature detection device and the liquid level detection device, the leads can be concentratedly distributed, avoiding circuit chaos.

[0017] In some embodiments, the inner container is a glass inner container, and the detection electrode is a conductive probe.

[0018] In these embodiments, the inner container is a glass inner container, which is convenient for users to observe the ingredients inside the inner container, has a good appearance effect, and is also high-temperature resistant and does not rust. Of course, the glass inner container is not conductive. Therefore, a conductive probe is configured as the detection electrode, and the structure is simple and convenient for processing.

[0019] In some embodiments, the inner container is a conductive metal inner container. The conductive outer shell and the bottom wall are separated by an insulating sealing ring. A part of the bottom wall lower than the conductive outer shell is configured as the detection electrode.

[0020] In these embodiments, the inner container is a conductive metal inner container. Instead of additionally providing a detection electrode, a part of the inner container is directly used as the detection electrode, which can reduce the number of components and save costs. In addition, an insulating sealing ring is used to separate the conductive outer shell and the bottom wall, avoiding short - circuit of the detection circuit and detection failure.

[0021] In some embodiments, the heating assembly includes a heat - conducting sheet and a heating tube. The heat - conducting sheet is arranged on the arc - shaped wall, and the heating tube is arranged on the lower surface of the heat - conducting sheet and is spirally distributed around the central axis of the inner container. The area where the heat - conducting sheet covers the arc - shaped wall forms a heating area. Heating with the heat - conducting sheet and the heating tube here has a simple structure, is convenient for processing, and has a good heating effect.

[0022] In some embodiments, the heating assembly includes a magnetic - conductive coating sprayed on the lower surface of the arc - shaped wall and an electromagnetic heating element located below the magnetic - conductive coating. The area where the magnetic - conductive coating covers the arc - shaped wall forms a heating area. In this case, there is no need to fix the electromagnetic heating element at the bottom of the inner container. It can be at a certain distance from the magnetic - conductive coating, which is convenient for installing the electromagnetic heating element at a suitable position and is not easy to damage the structure of the inner container.

[0023] In some embodiments, the heating assembly includes an electric heating film attached to the lower surface of the arc - shaped wall. The area where the electric heating film covers the arc - shaped wall forms a heating area. It has a simple structure and occupies a small space.

[0024] In some embodiments, the body of the inner container is in a straight - tube shape, and the inner surface of the arc - shaped wall is a part of a spherical surface. It is convenient for processing.

[0025] An embodiment of the second aspect of the present utility model provides a drinking water device, which includes: a housing provided with a water supply port; an inner container assembly as described in any one of the above - mentioned embodiments, and the inner container assembly is arranged in the housing; a water supply assembly arranged in the housing and connecting the water outlet and the water supply port.

[0026] For the drinking water device provided by the embodiment of this aspect, since it has the inner container assembly of any one of the above - mentioned embodiments, it thus has the beneficial effects of any one of the above - mentioned embodiments, which will not be elaborated here. Moreover, the water supply assembly is connected between the water outlet at the bottom of the inner container and the water supply port of the housing, which is convenient for the water supply assembly to supply the liquid inside the inner container to the water supply port, facilitating the user to directly receive water at the water supply port.

[0027] In some embodiments, the drinking water device further includes: a controller electrically connected to the liquid - level detection device and the heating assembly of the inner container assembly, and used to control the heating assembly to stop heating when the liquid - level detection device generates a signal that the liquid level in the inner container is lower than the upper edge of the heating area. The controller can timely control the heating assembly to stop heating to prevent dry - burning.

[0028] Additional aspects and / or advantages of the general inventive concept will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the general inventive concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects and features of the present invention will become more apparent from the following description of embodiments with reference to the accompanying drawings, in which:

[0030] Figure 1 A longitudinal sectional schematic view of an inner container assembly according to an embodiment of the present application is shown;

[0031] Figure 2 Shown is Figure 1 A partial enlarged schematic view at I in

[0032] Figure 3 A side view schematic view of an inner container assembly according to an embodiment of the present application is shown;

[0033] Figure 4 A bottom view schematic view of an inner container assembly according to an embodiment of the present application is shown;

[0034] Figure 5 A structural schematic view of a drinking water device according to an embodiment of the present application is shown;

[0035] Figure 6 A longitudinal sectional schematic view of a drinking water device according to an embodiment of the present application is shown.

[0036] Figures 1 to 6 Description of the reference numerals in the drawings:

[0037] 10 Inner container; 110 Container body; 120 Bottom wall; 121 Arc wall; 122 Connecting wall; 123 Horizontal wall; 124 Water outlet;

[0038] 20 Heating assembly; 210 Heat conducting sheet; 220 Heating tube;

[0039] 40 Temperature detection device;

[0040] 510 Conductive housing; 520 Detection electrode; 530 Insulating sealing ring; 540 Controller; 550 First lead; 560 Second lead;

[0041] 60 Housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The following specific embodiments are provided to assist the reader in obtaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely exemplary and is not limited to those set forth herein, but may be changed as will be apparent after understanding the disclosure of this application, except for operations that must occur in a particular order. Additionally, descriptions of features known in the art may be omitted for greater clarity and conciseness.

[0043] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Instead, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatuses, and / or systems described herein, which will be apparent after understanding the disclosure of this application.

[0044] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more of them.

[0045] Although terms such as “first,” “second,” and “third” may be used herein to describe various elements, components, regions, layers, or portions, these elements, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are only used to distinguish one element, component, region, layer, or portion from another. Thus, a first element, first component, first region, first layer, or first portion referred to in the examples described herein may also be referred to as a second element, second component, second region, second layer, or second portion without departing from the teachings of the examples.

[0046] In the specification, when an element such as a layer, region, or substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” directly “connected to,” or “coupled to” the other element, or there may be one or more other elements intervening therebetween. In contrast, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there may be no other elements intervening therebetween.

[0047] The terms used herein are for describing various examples only and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including" and "having" specify the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof. The term "plurality" represents any quantity of two or more.

[0048] The definitions of orientation terms such as "upper", "lower", "top" and "bottom" in this application are based on the orientation of the product in the normal use state, unless otherwise specified that the orientation in the drawings shall prevail.

[0049] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which this utility model belongs after understanding this utility model. Unless clearly defined herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and this utility model, and shall not be interpreted idealistically or overly formally.

[0050] Next, the inner container assembly and the drinking water device provided by the embodiments of the present utility model will be introduced in conjunction with Figures 1 to 6 the inner container assembly and the drinking water device provided by the embodiments of the present utility model will be introduced.

[0051] As Figures 1 to 4 shown, an embodiment of the first aspect of the present utility model provides an inner container assembly, the inner container assembly includes: an inner container 10, the inner container 10 includes a body 110 and a bottom wall 120, the bottom wall 120 includes an arc-shaped wall 121 that extends circumferentially around the center line of the inner container 10 and protrudes outward, and the top end of the arc-shaped wall 121 is connected to the bottom end of the body 110; a heating assembly 20, disposed outside the arc-shaped wall 121.

[0052] For the inner container assembly provided by the embodiment of this aspect, the bottom wall 120 of the inner container 10 has an outwardly convex arc-shaped wall 121, so that the top end of the arc-shaped wall 121 is connected to the bottom end of the body 110. The connection between the edge of the bottom wall 120 and the body 110 is not prone to scale deposition and there are no cleaning dead corners, which is convenient for cleaning the inner container 10. Moreover, by disposing the heating assembly 20 outside the arc-shaped wall 121, the surface area of the arc-shaped wall 121 is large, which can increase the heating area, reduce the power density and reduce the noise.

[0053] Further, the bottom wall 120 further includes a horizontal wall 123 located in the middle and extending horizontally. The arc-shaped wall 121 is connected to the outer edge of the horizontal wall 123 and circumferentially distributed around the horizontal wall 123. A water outlet 124 is provided on the horizontal wall 123, and the inner container 10 provides liquid outward through the water outlet 124. In this way, when the user needs to drink the liquid in the inner container 10, there is no need to pour the inner container 10, which is applicable to large-capacity drinking devices, is convenient for water outlet, and no matter whether the liquid in the inner container 10 is more or less, it can also flow out through the water outlet 124.

[0054] Moreover, compared with directly opening the water outlet 124 on the arc-shaped wall 121, the design of the horizontal wall 123 facilitates the processing of the water outlet, and also facilitates the connection of the pipeline joint to the horizontal wall 123 outside the water outlet 124 to communicate with the water outlet 124, and is also convenient for installing a seal at the water outlet 124 to avoid liquid leakage.

[0055] In addition, when processing the inner surface of the bottom wall 120, such as performing surface treatments such as spraying, polishing, or grinding on the inner surface of the bottom wall 120, the horizontal wall 123 can also be fixed by a tool, which can avoid the bottom wall 120 from moving, so the horizontal wall 123 is also beneficial to assisting the processing of the bottom wall 120.

[0056] In specific applications, a set distance can be set between the edge of the water outlet 124 and the outer edge of the horizontal wall 123. A certain area of the horizontal wall 123 is reserved outside the water outlet 124, which facilitates the firm connection of the pipeline joint to the horizontal wall 123 outside the water outlet 124 to communicate with the water outlet 124, and is also convenient for installing a seal at the water outlet 124, reducing the probability of water leakage.

[0057] In addition, the area where the heating component 20 covers the arc-shaped wall 121 is the heating area. The heating component 20 is arranged on the outside of the arc-shaped wall 121, and the heating area is not arranged in the same horizontal plane and there is a height difference. When the liquid level in the inner container 10 is lower than the upper edge of the heating area, the part of the heating area not covered by the liquid will have a dry burning phenomenon, and the temperature is very high, which is likely to cause the temperature rise of the surrounding plastic parts not to meet the requirements.

[0058] To further solve the above problems, in some embodiments, the inner container assembly can further include a liquid level detection device, which is arranged on the inner container 10 and used to detect whether the liquid level in the inner container 10 is lower than the upper edge of the heating area. The liquid level detection device is used to detect in time whether the liquid is lower than the upper edge of the heating area. When the inner container assembly is applied to a drinking device, it is convenient for the drinking device to control the heating component 20 to stop heating in time according to the detection result of the liquid level detection device, so as to avoid the dry burning phenomenon and improve the use safety of the product.

[0059] In some embodiments, the liquid level detection device includes a first detection electrode and a second detection electrode. The first detection electrode and the second detection electrode form a detection circuit. The second detection electrode is lower than the first detection electrode, or the second detection electrode is at the same height as the first detection electrode. The first detection electrode is disposed above the heating area on the bottom wall 120 and is disposed near the upper edge of the heating area. When the liquid level in the inner container 10 is lower than the first detection electrode, the detection circuit is disconnected to generate a signal indicating that the liquid level in the inner container 10 is lower than the upper edge of the heating area.

[0060] In these embodiments, since the first detection electrode is higher than the upper edge of the heating area, when the liquid in the inner container 10 is just lower than the first detection electrode and may not actually be lower than the upper edge of the heating area, the liquid detection device "determines" that the liquid is lower than the upper edge of the heating area accordingly, generating a signal indicating that the liquid level in the inner container 10 is lower than the upper edge of the heating area, which is beneficial for timely controlling the heating component to stop heating, preventing dry burning, and having good safety.

[0061] In some other embodiments, the liquid level detection device includes a first detection electrode and a second detection electrode. The first detection electrode and the second detection electrode form a detection circuit. The second detection electrode is lower than the first detection electrode, or the second detection electrode is at the same height as the first detection electrode. The first detection electrode is disposed within the heating area and is disposed near the upper edge of the heating area. When the liquid level in the inner container 10 is lower than the first detection electrode, the detection circuit is disconnected to generate a signal indicating that the liquid level in the inner container 10 is lower than the upper edge of the heating area.

[0062] In these embodiments, since the first detection electrode is near the upper edge of the heating area, when the liquid level is just lower than the upper edge of the heating area but not much lower, the liquid level detection device can generate a signal indicating that the liquid level in the inner container 10 is lower than the upper edge of the heating area, which is also beneficial for timely controlling the heating component to stop heating and avoiding excessive temperature rise of the plastic parts around the heating area.

[0063] As an example, the heating component 20 includes a heat conducting sheet 210 and a heating tube 220 located below the heat conducting sheet 210. The area where the heat conducting sheet 210 covers the arc-shaped wall 121 forms a heating area. There is a notch at the upper edge of the heat conducting sheet 210. The first detection electrode is disposed on the bottom wall 120 corresponding to the position of the notch. In this way, when the liquid level is just lower than the upper edge of the heating area but not much lower, the liquid level detection device can detect that the liquid level is lower than its own position, generating a signal indicating that the liquid level in the inner container 10 is lower than the upper edge of the heating area, which is beneficial for timely controlling the heating component 20 to stop heating and avoiding excessive temperature rise of the plastic parts around the heating area.

[0064] Further, in some embodiments, such as Figure 1 and Figure 2As shown, the inner container assembly further includes a temperature detection device 40 disposed on the inner container 10 for detecting the temperature of the liquid inside the inner container 10. This is conducive to timely understanding of the liquid temperature and whether the liquid is heated to the appropriate temperature.

[0065] Further, in some embodiments, as Figure 1 and Figure 2 shown, the temperature detection device 40 includes a conductive outer shell 510 and a temperature measurement element located inside the conductive outer shell 510. The temperature measurement element detects the temperature of the liquid inside the inner container 10 through the heat transferred by the conductive outer shell 510. The area where the heating assembly 20 covers the arc-shaped wall 121 is the heating area. The conductive outer shell 510 extends into the inner container 10 and is disposed near the upper edge of the heating area.

[0066] The inner container assembly further includes a detection electrode 520 disposed on the bottom wall 120. The detection electrode 520 is lower than the conductive outer shell 510 or at the same height as the conductive outer shell 510. The detection electrode 520 and the conductive outer shell 510 together constitute a liquid level detection device. When the liquid in the inner container 10 is lower than the conductive outer shell 510, the liquid level detection device generates a signal indicating that the liquid level in the inner container 10 is lower than the upper edge of the heating area.

[0067] In these embodiments, the temperature detection device 40 and the liquid level detection device are integrated. The conductive outer shell 510 of the temperature detection device 40 is used as one detection electrode of the liquid level detection device, and another detection electrode 520 is provided to cooperate with this detection electrode to form a detection circuit of the liquid level detection device. The structure is simple, the number of components is reduced, and the cost is saved. Moreover, compared with separately arranging the temperature detection device 40 and the liquid level detection device, the leads can be concentratedly distributed, avoiding circuit chaos.

[0068] In specific applications, as Figure 1 and Figure 2 shown, the first lead 550 can be electrically connected to the conductive outer shell 510, the second lead 560 can be electrically connected to the detection electrode 520, and these two leads are connected to the controller 540 to form a detection circuit of the liquid level detection device. When the liquid contacts both the conductive outer shell 510 and the detection electrode 520 simultaneously, electricity is conducted between the conductive outer shell 510 and the detection electrode 520 through the liquid, the detection circuit is turned on, and a signal indicating that the liquid in the inner container 10 is not lower than the upper edge of the heating area is generated. When the liquid does not contact both the conductive outer shell 510 and the detection electrode 520 simultaneously, the power between the conductive outer shell 510 and the detection electrode 520 is cut off, the detection circuit is disconnected, and a signal indicating that the liquid in the inner container 10 is lower than the upper edge of the heating area is generated. This signal can be generated by a voltage change. The controller 540 can judge the liquid level situation in the inner container 10 according to the voltage change and control the heating assembly 20 to stop heating to prevent dry burning.

[0069] As an example, the inner container 10 is a glass inner container, and the detection electrode 520 is a conductive probe. The glass inner container facilitates the user to observe the ingredients inside the inner container 10, has a good appearance effect, is high-temperature resistant, and does not rust. Of course, the glass inner container is non-conductive. Therefore, a conductive probe is configured as the detection electrode 520, with a simple structure and convenient processing. In addition, to prevent water leakage, an insulating sealing ring 530 can be provided between the conductive probe and the inner container 10.

[0070] As an example, the inner container 10 is a conductive metal inner container. The conductive outer shell 510 and the bottom wall 120 are separated by an insulating sealing ring 530. A part of the bottom wall 120 that is lower than the conductive outer shell 510 is configured as the detection electrode 520. The inner container 10 is a conductive metal inner container, eliminating the need to additionally set up a detection electrode 520. Instead, a part of the inner container 10 is directly used as the detection electrode 520, which can reduce components and save costs. In addition, separating the conductive outer shell 510 and the bottom wall 120 by an insulating sealing ring 530 can prevent the detection circuit from being short-circuited and causing detection failure. Specifically, the inner container 10 can be a stainless steel inner container 10 with a titanium layer on its inner surface, having certain conductivity, being high-temperature resistant, and corrosion-resistant.

[0071] Regarding the specific structure of the heating assembly 20, further, in some embodiments, such as Figure 1 、 Figure 3 and Figure 4 shown, the heating assembly 20 includes a heat conducting sheet 210 and a heating tube 220. The heat conducting sheet 210 is arranged on the arc-shaped wall 121, and the heating tube 220 is arranged on the lower surface of the heat conducting sheet 210. The area where the heat conducting sheet 210 covers the arc-shaped wall 121 forms a heating area. Here, heating is carried out using the heat conducting sheet 210 and the heating tube 220, with a simple structure, convenient processing, and good heating effect.

[0072] Further, the heating tube 220 can be spirally distributed on the heat conducting sheet 210 around the center line of the inner container 10 to increase the heating area and achieve a good heating effect. Of course, the heating tube 220 can also be distributed in a circle on the heat conducting sheet 210.

[0073] In some other embodiments, the heating assembly 20 includes a magnetic conductive coating (not shown in the figure) sprayed on the lower surface of the arc-shaped wall 121 and an electromagnetic heating element (not shown in the figure) located below the magnetic conductive coating. The area where the magnetic conductive coating covers the arc-shaped wall 121 forms a heating area. In this case, there is no need to fix the electromagnetic heating element at the bottom of the inner container 10. It can be a certain distance away from the magnetic conductive coating, facilitating the installation of the electromagnetic heating element at a suitable position and not easily damaging the structure of the inner container 10. At this time, the inner container 10 can be a glass inner container or other inner containers that are not easily electromagnetically heated.

[0074] In some other embodiments, the heating assembly 20 includes an electric heating film (not shown in the figure) attached to the lower surface of the arc-shaped wall 121, and the area of the arc-shaped wall 121 covered by the electric heating film forms a heating area. The structure is simple and occupies little space. At this time, the inner container 10 can be a glass inner container or a stainless steel inner container 10, etc.

[0075] Regarding the specific structure of the inner container 10, further, in some embodiments, such as Figure 1 and Figure 2 shown, the bottom wall 120 further includes a connecting wall 122 extending vertically upward from the upper edge of the arc-shaped wall 121. The height of the connecting wall 122 is between 2 mm and 10 mm, and the connecting wall 122 is welded to the bottom end of the body 110 of the inner container.

[0076] In these embodiments, the vertically upward extending connecting wall 122 is used to be welded to the body 110 of the inner container, and the height of the connecting wall 122 is greater than or equal to 2 mm, which is convenient for welding and is beneficial to firmly connecting the two together. Moreover, the height of the connecting wall 122 does not exceed 10 mm, which is convenient for clamping the bottom wall 120 and extending into the inside of the bottom wall 120 to process the bottom wall 120, especially the bottom of the area surrounded by the bottom wall 120, avoiding inconvenience in processing caused by the excessive height of the connecting wall 122.

[0077] Further, in some embodiments, such as Figure 1 and Figure 4 shown, the body 110 of the inner container is in a straight cylindrical shape, and the inner surface of the arc-shaped wall 121 is a part of a spherical surface. It is convenient for processing.

[0078] Such as Figure 1 , Figure 5 and Figure 6 shown, the second aspect embodiment of the present utility model provides a drinking water device, which includes: an inner container assembly as described in any one of the above embodiments. The drinking water device provided by the embodiments of this aspect has the beneficial effects of any one of the above embodiments due to having the inner container assembly of any one of the above embodiments, and will not be elaborated here.

[0079] In some embodiments, such as Figure 5 and Figure 6 shown, the drinking water device further includes a housing 60 and a water supply assembly. A water supply port is provided on the housing 60. The inner container assembly is arranged inside the housing 60, and the water supply assembly is arranged inside the housing 60 and is connected to the water outlet 124 and the water supply port. It is convenient for users to directly receive water at the water supply port.

[0080] Specifically, the water supply assembly may include a pipeline and a water pump arranged on the pipeline. The water pump extracts the liquid in the inner container 10 and supplies it to the water supply port.

[0081] In some embodiments, the drinking water device further includes a controller 540. The controller 540 is electrically connected to the liquid level detection device and the heating assembly 20, and is configured to control the heating assembly 20 to stop heating when the liquid level detection device generates a signal that the liquid level in the inner container 10 is lower than the upper edge of the heating area. The controller 540 can timely control the heating assembly 20 to stop heating to prevent dry burning.

[0082] In some embodiments, the controller 540 is also electrically connected to the temperature detection device 40 of the inner container assembly, and is configured to control the power on and off of the heating assembly 20 according to the temperature detected by the temperature detection device 40.

[0083] In some embodiments, the drinking water device is an electric thermos, an electric water tank, an instant hot water dispenser, a warm water machine, etc.

[0084] The following details a drinking water device according to an embodiment of the present application. The drinking water device is an electric thermos. To facilitate cleaning the inner container 10 of the electric thermos and reduce the working noise, an electric thermos with a seamless inner container 10 having a spherical bottom is designed.

[0085] The inner container assembly with a spherical bottom and seamless includes a straight cylindrical body 110, a hemispherical bottom wall 120, a heating assembly 20, and an NTC probe. The straight cylindrical body 110 and the hemispherical bottom wall 120 are welded to form a seamless inner container 10.

[0086] The straight cylindrical body 110 is mainly used for storing water and fixing and supporting the inner container assembly on the housing 60 of the electric thermos. The upper end of the hemispherical bottom wall 120 is provided with a vertical connecting wall 122 greater than 2 mm, which is convenient for welding with the body 110. The lower end of the hemispherical bottom wall 120 is provided with a horizontally extending horizontal wall 123, and the water outlet 124 is arranged on the horizontal wall 123, which is convenient for the installation and fixation of the water outlet 124. The outer side of the hemispherical bottom wall 120 is provided with a matching aluminum heat conducting sheet 210 and a heating tube 220. The heating tube 220 is spirally distributed on the lower surface of the aluminum heat conducting sheet 210 and evenly surrounds the inner container 10 for multiple turns.

[0087] Compared with the inner container 10 with a straight cylindrical bottom, the hemispherical bottom wall 120 greatly increases the heating area. At the same time, the spiral heating tube 220 increases the length of the heating tube 220, which can reduce the energy density of heating. Since the working noise of the electric thermos is mainly caused by the collective rupture sound of overly concentrated bubbles generated at the bottom of the inner container 10, by increasing the heating area and reducing the energy heating density, the generated bubbles can be evenly distributed and will not rupture collectively, achieving a silent effect. And the structure of the spherical bottom wall 120 has no cleaning dead corners, which is convenient for cleaning the inner container 10.

[0088] Due to the height difference in the heating area on the spherical bottom wall 120, when the water level is lower than the highest point of the heating area and higher than the lowest point of the heating area, the dry-burning temperature of the waterless heating area is relatively high, which may cause the plastic temperature rise of the housing 60 outside the inner tank 10 to not meet the requirements. Therefore, an NTC probe is provided above the aluminum heat-conducting sheet 210 on the bottom wall 120, which mainly serves to measure the water temperature and the water level. A sealing ring is provided between the NTC probe and the inner tank 10 for insulation. The inner tank 10 is a conductive metal inner tank, and the bottom is grounded through a lead. If the water level in the inner tank 10 is higher than the insulating sealing ring 530, the conductive outer shell 510 of the NTC probe generates a signal by the controller 540. This signal forms a detection circuit with the inner tank 10 grounded through the ions in the water and then is connected to the controller 540. Through the processing of the single-chip microcomputer, it can be judged that the water level in the inner tank 10 is lower than the lowest water level line. Here, the upper edge of the heating area is used as the lowest water level line to control the heating component 20 to stop heating and prevent dry burning.

[0089] The inner tank 10 can be a stainless-steel inner tank with a titanium layer on its inner surface to improve the easy-cleaning effect. Of course, the inner tank 10 can also be a glass inner tank. In this case, a magnetic conductive coating can be used in combination with IH heating. Moreover, a detection electrode 520 can be provided on the inner tank 10 to form a detection circuit with the conductive outer shell 510 of the NTC probe.

[0090] In addition, multiple heating tubes 220 can be provided at the bottom of the inner tank 10 to disperse the heat source, rather than a single heating tube 220 being spirally distributed, or IH heating can be adopted to improve its uniformity, or thick-film surface heating can be used for uniform heating.

[0091] Although the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It should be understood that in the view of those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention defined by the claims.

Claims

1. An inner container assembly, characterized in that, The inner container assembly includes: An inner container (10), the inner container (10) includes a body (110) and a bottom wall (120), the bottom wall (120) includes a horizontal wall (123) located in the middle and extending horizontally, and an arc wall (121) extending upward and protruding outward from the outer edge of the horizontal wall (123), the top end of the arc wall (121) is connected to the bottom end of the body (110), and a water outlet (124) is provided on the horizontal wall (123); A heating assembly (20), arranged on the outer side of the arc wall (121).

2. The inner container assembly according to claim 1, characterized in that, A set distance is provided between the edge of the water outlet (124) and the outer edge of the horizontal wall (123).

3. The inner liner assembly according to claim 1, wherein, The bottom wall further includes a connecting wall (122) extending vertically upward from the top end of the arc wall (121), the height of the connecting wall (122) is between 2 mm and 10 mm, and the connecting wall (122) is welded to the bottom end of the body (110).

4. The inner container assembly according to any one of claims 1 to 3, characterized in that The area where the heating assembly (20) covers the arc wall (121) is the heating area, and the inner container assembly further includes: A liquid level detection device, arranged on the inner container (10) for detecting whether the liquid level in the inner container (10) is lower than the upper edge of the heating area.

5. The inner liner assembly according to claim 4, wherein The liquid level detection device includes a first detection electrode and a second detection electrode, the first detection electrode and the second detection electrode form a detection circuit, the first detection electrode is arranged above the heating area on the bottom wall (120) and close to the upper edge of the heating area, or the first detection electrode is arranged in the heating area and close to the upper edge of the heating area, the second detection electrode is lower than the first detection electrode, or the second detection electrode is at the same height as the first detection electrode; Wherein, when the liquid in the inner container (10) is lower than the first detection electrode, the detection circuit is disconnected to generate a signal that the liquid level in the inner container (10) is lower than the upper edge of the heating area.

6. The inner container assembly according to any one of claims 1 to 3, characterized in that, The inner container assembly further includes: A temperature detection device (40), arranged on the inner container (10) for detecting the temperature of the liquid inside the inner container (10).

7. The inner liner assembly according to claim 6, characterized in that, The temperature detection device (40) includes a conductive housing (510) and a temperature measurement element located inside the conductive housing (510), the temperature measurement element detects the temperature of the liquid inside the inner container (10) through the heat transferred by the conductive housing (510), the area where the heating assembly (20) covers the arc wall (121) is the heating area, the conductive housing (510) extends into the inner container (10) and is arranged close to the upper edge of the heating area; The inner container assembly further includes a detection electrode (520) disposed on the bottom wall (120). The detection electrode (520) is lower than the conductive outer shell (510) or at the same height as the conductive outer shell (510). The detection electrode (520) and the conductive outer shell (510) together form a liquid level detection device. When the liquid in the inner container (10) is lower than the conductive outer shell (510), the liquid level detection device generates a signal indicating that the liquid level in the inner container (10) is lower than the upper edge of the heating area.

8. The inner liner assembly according to claim 7, wherein, The inner container (10) is a glass inner container, and the detection electrode (520) is a conductive probe; or The inner container (10) is a conductive metal inner container. The conductive outer shell (510) and the bottom wall (120) are separated by an insulating sealing ring (530). A part of the bottom wall (120) that is lower than the conductive outer shell (510) is configured as the detection electrode (520).

9. The inner container assembly according to any one of claims 1 to 3, characterized in that The heating assembly (20) includes a heat conducting sheet (210) and a heating tube (220). The heat conducting sheet (210) is disposed on the arc-shaped wall (121). The heating tube (220) is disposed on the lower surface of the heat conducting sheet (210) and is spirally distributed around the central axis of the inner container (10). The area where the heat conducting sheet (210) covers the arc-shaped wall (121) forms a heating area; or The heating assembly (20) includes a magnetic conductive coating sprayed on the lower surface of the arc-shaped wall (121) and an electromagnetic heating element located below the magnetic conductive coating. The area where the magnetic conductive coating covers the arc-shaped wall (121) forms a heating area; or The heating assembly (20) includes an electric heating film attached to the lower surface of the arc-shaped wall (121). The area where the electric heating film covers the arc-shaped wall (121) forms a heating area.

10. The liner assembly according to any one of claims 1 to 3, characterized in that, The body of the inner container (110) is in a straight cylindrical shape, and the inner surface of the arc-shaped wall (121) is a part of a spherical surface.

11. A drinking water device, characterized in that, The drinking water device includes: A housing (60) provided with a water supply port on the housing (60); The inner container assembly according to any one of claims 1 to 10, the inner container assembly being disposed in the housing (60); A water supply assembly disposed in the housing (60) and connecting the water outlet (124) and the water supply port.

12. The drinking water device according to claim 11, characterized in that, The drinking water device further includes: A controller (540) electrically connected to the liquid level detection device of the inner container assembly and the heating assembly (20), and configured to control the heating assembly (20) to stop heating when the liquid level detection device generates a signal indicating that the liquid level in the inner container (10) is lower than the upper edge of the heating area.

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