CN215424132U - Liquid heating device and liquid heating container - Google Patents

Abstract

The utility model provides a liquid heating device and a liquid heating container, the liquid heating device includes: a panel for placing a container body of a liquid heating container; the at least one detection piece is arranged on the panel and can be triggered when the object is placed at the corresponding position; the heating element is connected with the panel; the controller is connected with the at least one detection piece and the heating piece and used for controlling the on-off of the power supply of the heating piece according to the triggering condition of the at least one detection piece. Through setting up at least one detection piece at the panel, whether can effectively detect the container body and place on the panel, and then confirm whether for heating member switch on power supply according to the trigger condition that detects the piece by the controller, avoided the user to be scalded, promoted the power consumption safety. Through arranging the detection piece, can specifically detect whether the container body is placed in the corresponding position of detection piece, help reducing the container body and place the unreasonable risk that falls at the heating in-process of the container body that causes of position, reduced the potential safety hazard.

Description

Liquid heating device and liquid heating container

Technical Field

The utility model relates to the technical field of cooking, in particular to a liquid heating device and a liquid heating container.

Background

Separable liquid heating container is owing to can the heating liquid, can be with electric heater and container body separation again to clean the container body conveniently, received consumer's favor.

The existing separable liquid heating container is always powered on and heated no matter whether the container body is placed on an electric heating furnace or not, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is directed to a liquid heating apparatus and a liquid heating container, so as to solve the problem of how to reduce the potential safety hazard of the liquid heating container.

According to an aspect of the present invention, there is provided a liquid heating apparatus for a liquid heating vessel, the liquid heating apparatus comprising: a panel for placing a container body of a liquid heating container; the at least one detection piece is arranged on the panel and can be triggered when the object is placed at the corresponding position; the heating element is connected with the panel; the controller is connected with the at least one detection piece and the heating piece and used for controlling the on-off of the power supply of the heating piece according to the triggering condition of the at least one detection piece.

According to the liquid heating device provided by the embodiment of the utility model, the panel is provided with the at least one detection part, so that whether the container body is placed on the panel can be effectively detected, the controller determines whether the heating element is powered on according to the triggering condition of the detection part, specifically, the controller can be used for powering on the heating element when all the detection parts are triggered, the liquid heating device can ensure that articles are not placed on the panel, especially, the heating is not carried out when the container body is not placed, the user is prevented from being scalded, and the electricity utilization safety is improved. In addition, through arranging the detection piece, can specifically detect whether the container body is placed in the corresponding position that detects the piece to only place at the container body and just for heating member switch on power supply when specific position, help reducing the container body and place the unreasonable risk that falls in the heating process of the container body that causes in position, reduced the potential safety hazard.

In some embodiments, the maximum distance between the at least one detector and the central axis of the panel is less than the minimum distance from the contour of the outer bottom wall of the container body to the central axis of the outer bottom wall of the container body.

In these embodiments, the outer bottom wall of the container body is often smaller than the size of the panel for ease of placement, so that the outer bottom wall of the container body can be completely contained within the panel, but this design also increases the risk of the container body being placed substantially off-center of the panel. The position that sets up through specifically injecing the detection piece satisfies above-mentioned distance condition for when the container body was placed at the panel center, whole detection pieces can be covered by the container body, and when the container body obviously deviated the panel center, often can't trigger whole detection pieces simultaneously, thereby can realize that comparatively reliable container body places the position and detects, help reducing the risk that the container body skew caused falls at the heating in-process, reduced the potential safety hazard.

In some embodiments, the surface of the panel has a heating region corresponding to the heating element, the heating region being spaced apart from the at least one sensing element.

In these embodiments, the heating region is the region of the panel corresponding to the heating element, and thus the temperature tends to be higher. Through making heating region and at least one detection piece interval distribution, can reduce the influence of high temperature to detecting the piece, reduce the risk that detects the piece and discolour, melt or burn, help guaranteeing the steady operation that detects the piece, prolong the life who detects the piece.

In some embodiments, the at least one detecting element includes at least two first detecting elements spaced apart around a central axis of the panel, and a minimum distance between the at least two first detecting elements and the central axis of the panel is greater than a maximum distance from an outer contour of the heating region to a center point of the heating region.

In the embodiments, under the condition that the detection piece and the heating area are required to be arranged at intervals, all the detection pieces are arranged around the periphery of the heating area, so that the damage of the detection piece to the overall continuity of the heating area can be reduced, the continuity and the concentration of the heating area are ensured, and the heating effect is ensured. In addition, such design can expand the detection range of the detection piece in the plane, promote the deviation prevention precision of the container body, fully reduce the risk that the container body falls in the heating process caused by unreasonable container body placement position, and reduce the potential safety hazard.

In some embodiments, the at least two first detecting elements are equidistant from a central axis of the panel, and an outer contour of the heating region is a circle centered on a central point of the panel.

In these embodiments, the outer bottom wall of the container body is generally circular and the heating region is correspondingly circular and located at the center of the panel. All the first detection pieces are distributed on a concentric circle of the outer contour of the heating area by enabling the first detection pieces to be equidistant to the central axis of the panel, so that the distribution of the first detection pieces is adaptive to a container body which is used conventionally, the same detection effect in all directions is ensured, and the detection precision is favorably improved.

In some embodiments, the at least two first detection members are membrane switches connected in series.

In the embodiments, the membrane switch can be triggered when the membrane switch bears an external force exceeding 2N, and the membrane switch has a simple structure, strong sensitivity, mature process and low cost. The thickness of membrane switch is often thinner, does not influence the steady placement of the container body, and can use its self gum adhesion on the panel, the setting of being convenient for. Through selecting the membrane switch as first detection piece to connect all membrane switches in series, can just switch on the circuit when all membrane switches are triggered simultaneously, the signal of output trigger, therefore can utilize the nature of circuit structure itself to replace receiving and analysis to the testing result of every first detection piece, help reducing data processing volume, promote and detect the reliability.

In some embodiments, the at least two first detection members comprise at least one of: the light-sensitive component comprises a light-sensitive sensor and a light-transmitting part which are correspondingly arranged along the thickness direction of the panel, the light-sensitive sensor is positioned on the inner side of the panel, and the light-transmitting part penetrates through the panel along the thickness direction of the panel.

In these embodiments, the first detecting element may be a membrane switch, a piezoelectric sensor, or a photosensitive element. The membrane switch and the piezoelectric sensor can be arranged on the outer side surface of the panel to directly detect the touch pressure of the container body, so that the detection reliability is ensured. The light sensitive component further comprises a light sensitive sensor located on the inner side of the panel (i.e. the side of the panel facing the interior of the liquid heating apparatus and not in direct contact with the container body) and a light-transmitting portion extending through the panel. When the container body is not placed, light can smoothly pass through the light-transmitting part to reach the corresponding photosensitive sensor, and at the moment, the corresponding photosensitive component is in an unfired state. When the container body is placed on the panel and the light-transmitting part is specifically shielded, light cannot reach the corresponding photosensitive sensor, so that the corresponding photosensitive component is in a triggered state, and detection can be completed. The photosensitive member does not change the surface flatness of the panel, and thus, stable placement of the container body can be sufficiently ensured.

In some embodiments, the at least one detection member comprises a second detection member disposed at a center of the panel.

In the embodiments, the second detecting piece is arranged at the center of the panel, so that the in-place detection and the deviation prevention detection of the container body can be completed by using only one detecting piece, the detection structure is simplified, and the product cost is reduced.

In some embodiments, the second detection member comprises at least one of: the light-sensitive component comprises a light-sensitive sensor and a light-transmitting part which are correspondingly arranged along the thickness direction of the panel, the light-sensitive sensor is positioned on the inner side of the panel, and the light-transmitting part penetrates through the panel along the thickness direction of the panel.

In these embodiments, the second detecting element may be a membrane switch, a piezoelectric sensor, or a photosensitive element. The membrane switch and the piezoelectric sensor can be arranged on the outer side surface of the panel to directly detect the touch pressure of the container body, so that the detection reliability is ensured. The light sensitive component further comprises a light sensitive sensor located on the inner side of the panel (i.e. the side of the panel facing the interior of the liquid heating apparatus and not in direct contact with the container body) and a light-transmitting portion extending through the panel. When the container body is not placed, light can smoothly pass through the light-transmitting part to reach the corresponding photosensitive sensor, and at the moment, the corresponding photosensitive component is in an unfired state. When the container body is placed on the panel and the light-transmitting part is specifically shielded, light cannot reach the corresponding photosensitive sensor, so that the corresponding photosensitive component is in a triggered state, and detection can be completed. The photosensitive member does not change the surface flatness of the panel, and thus, stable placement of the container body can be sufficiently ensured.

According to another aspect of the present invention, there is provided a liquid heating vessel comprising: a liquid heating apparatus as described in any of the above embodiments; and a container body which can be placed on the liquid heating apparatus.

The liquid heating container provided by the embodiment of the utility model comprises the liquid heating device according to any one of the embodiments, so that the liquid heating container has all the beneficial technical effects of the liquid heating device, and the details are not repeated herein.

In some embodiments, the outer bottom wall of the container body conforms to the panel of the liquid heating apparatus with the container body placed on the liquid heating apparatus.

In some embodiments, through the outer diapire design of the container body for can with liquid heating device's panel laminating mutually, can make the container body contact with liquid heating device's panel under the action of gravity and press and hug closely, both be convenient for heat transfer, promote the heating effect, can be convenient for again to detect the piece and effectively triggered by the container body, help promoting the detection reliability.

Additional aspects and/or advantages of the present 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.

Drawings

The above and other objects and features of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a liquid heating apparatus according to one embodiment of the present invention;

FIG. 2 is a cross-sectional view of a liquid heating apparatus according to one embodiment of the present invention;

FIG. 3 is a schematic structural view of a panel, a first detecting member and a signal line according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a container body according to an embodiment of the present invention;

FIG. 5 is a top view of a faceplate, a first detector, and signal lines according to one embodiment of the utility model;

FIG. 6 is a cross-sectional view of a membrane switch according to one embodiment of the present invention;

FIG. 7 is a schematic structural view of a liquid heating apparatus according to another embodiment of the present invention;

FIG. 8 is a schematic structural view of a panel, a second detecting member and a signal line according to an embodiment of the present invention;

FIG. 9 is a top view of a faceplate, a second detector, and signal lines according to one embodiment of the utility model;

FIG. 10 is a schematic structural view of a liquid heating vessel according to one embodiment of the present invention;

FIG. 11 is a longitudinal cross-sectional cut-away view of a liquid heating vessel according to one embodiment of the present invention;

fig. 12 is an exploded view of a portion of a liquid heating vessel according to one embodiment of the present invention.

The reference numbers illustrate:

1: a liquid heating vessel;

10: a liquid heating device; 11: a panel; 111: a heating zone; 12: a first detecting member; 121: coating the upper layer; 122: an upper insulating layer; 123: an upper conductive layer; 124: a lower insulating layer; 125: a lower conductive layer; 126: coating the lower layer outside; 13: a second detecting member; 14: a controller; 15: a signal line; 161: a housing; 162: a bottom cover; 163: a control panel; 164: a support plate; 165: a heat insulation block; 166: a fan; 167: a sealing cover;

20: a container body;

30: a container cover.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art after reviewing the disclosure of the present application. For example, the order of operations described herein is merely an example, and is not limited to those set forth herein, but may be changed as will become apparent after understanding the disclosure of the present application, except to the extent that operations must occur in a particular order. Moreover, descriptions of features known in the art may be omitted for clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and/or systems described herein, which will be apparent after understanding the disclosure of the present application.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein could also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples.

In the specification, when an element is referred to as being "on," "connected to" or "coupled to" another element, it can be directly on, connected to or coupled to the other element or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there may be no intervening elements present.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular is also intended to include the plural unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, 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.

Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs after understanding the present invention. Unless expressly defined as such, terms are to be construed as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and not to be interpreted in an idealized or overly formal sense.

Further, in the description of the examples, when it is considered that detailed description of well-known related structures or functions will cause a vague explanation of the present invention, such detailed description will be omitted.

A liquid heating apparatus 10 and a liquid heating container 1 according to an embodiment of the present invention will be described with reference to fig. 1 to 12.

As shown in fig. 1 and 2, an embodiment of an aspect of the present invention provides a liquid heating apparatus 10, which includes a panel 11, at least one detecting element (e.g., a first detecting element 12 shown in fig. 1 and a second detecting element 13 shown in fig. 7), a heating element (not shown, for example, an optional electrothermal film, such as a graphene electrothermal film, or an optional electrothermal wire), and a controller 14. The panel 11 is used for placing the container body 20 of the liquid heating container 1; at least one detection piece is arranged on the panel 11, and the at least one detection piece can be triggered when an object is placed at a corresponding position; the heating member is connected to the panel 11; the controller 14 is connected with the at least one detecting member and the heating member, and the controller 14 is used for controlling the power supply of the heating member to be switched on and off according to the triggering condition of the at least one detecting member.

According to the liquid heating device 10 provided by the embodiment of the utility model, at least one detection part is arranged on the panel 11, so that whether the container body 20 is placed on the panel 11 can be effectively detected, the controller 14 determines whether to switch on the power supply for the heating part according to the triggering condition of the detection part, specifically, the power supply for the heating part can be switched on when all the detection parts are triggered, the condition that no object is placed on the panel 11, especially the heating is not carried out when the container body 20 is not placed can be ensured, the scalding of a user is avoided, and the power utilization safety is improved. In addition, through arranging the detection piece, can specifically detect whether container body 20 places in the corresponding position of detection piece to only place just for heating member switch on power supply when specific position at container body 20, help reducing the unreasonable risk that falls in the heating process of container body 20 that causes in container body 20 placement position, reduced the potential safety hazard.

Alternatively, the detecting member may be provided on an outer surface of the panel 11 and triggered under pressure, such as a membrane switch or a piezoelectric sensor, which will be described later, or may be provided partially in the panel 11 and partially on one side of the panel 11, such as a photosensitive element, which will be described later.

It is understood that the controller 14 may be used only for controlling the power on/off of the heating element, the user manually operates the switch of the heating element to realize the heating, and the controller 14 may also directly control the operation of the heating element under the condition that the power is supplied to the heating element, and the utility model is not limited thereto. Alternatively, the controller 14 employs a Printed Circuit Board Assembly (PCBA), specifically, a chip-mounted PCBA of a Flexible Printed Circuit (FPC).

Optionally, the panel 11 may be a quartz glass panel or a ceramic panel, both of which have high strength, so as to greatly reduce the thickness of the panel 11, and contribute to reducing the thickness of the whole liquid heating apparatus 10, so that the whole liquid heating apparatus 10 is light and thin, and is convenient to store. In addition, the quartz glass panel and the ceramic panel both have reliable high-temperature thermal insulation characteristics, and can ensure that the insulating property is still stable and reliable under the high-temperature action of the heating element, so that the risk of breakdown is reduced, and the liquid heating device 10 can be applied to wider scenes.

In some embodiments, the maximum distance between the at least one detector and the central axis of the panel 11 is less than the minimum distance from the contour of the outer bottom wall of the container body 20 to the central axis of the outer bottom wall of the container body 20.

In these embodiments, the outer bottom wall of the container body 20 is often smaller than the size of the panel 11 for ease of placement, so that the outer bottom wall of the container body 20 can be completely contained within the panel 11, but this design also increases the risk of the container body 20 being placed substantially off-center of the panel 11. Set up the position through specifically injecing the detection piece and satisfy above-mentioned distance condition for when container body 20 placed at panel 11 center, whole detection pieces can be covered by container body 20, and when container body 20 obviously deviates from panel 11 center, often can't trigger whole detection pieces simultaneously, thereby can realize that comparatively reliable container body 20 places the position and detects, help reducing the risk that container body 20 that the skew of container body 20 caused falls at the heating in-process, reduced the potential safety hazard. It will be understood that the detecting member itself has a certain size, not a point, and the distance between the detecting member and the central axis of the panel 11 specifically refers to the distance between the central point of the detecting member and the central axis of the panel 11.

As shown in FIG. 3, in some embodiments, the surface of the panel 11 has a heating region 111 corresponding to the heating element, the heating region 111 being spaced apart from the at least one sensing element.

In these embodiments, the heating region 111 is a region of the panel 11 corresponding to the heating member, specifically, the heating member may be disposed on one side surface of the panel 11, and the heating region 111 may be a region of the one side surface directly contacting with the heating member, or a region of the other side surface facing away from the one side surface corresponding to the heating member, whichever side surface is higher in temperature. By arranging the heating area 111 and at least one detection piece at intervals, the influence of high temperature on the detection piece can be reduced, the risks of color change, melting or combustion of the detection piece are reduced, the stable work of the detection piece is ensured, and the service life of the detection piece is prolonged.

As shown in FIG. 3, in some embodiments, the at least one detecting element includes at least two first detecting elements 12 (e.g., three first detecting elements 12 shown in FIG. 3) spaced around the central axis of the panel 11, and the minimum distance between the at least two first detecting elements 12 and the central axis of the panel 11 is greater than the maximum distance from the outer contour of the heating region 111 to the center point of the heating region 111.

In these embodiments, in the case that the detection member and the heating region 111 are required to be arranged at an interval, by arranging all the detection members around the periphery of the heating region 111, damage of the detection member to the overall continuity of the heating region 111 can be reduced, the heating region 111 is ensured to be continuous and concentrated, and the heating effect is ensured. In addition, such design can expand the detection range of the detection piece in the plane, promote the deviation prevention precision of the container body 20, fully reduce the risk that the container body 20 falls off in the heating process caused by unreasonable placing position of the container body 20, and reduce the potential safety hazard. Alternatively, all the first detecting members 12 are uniformly distributed around the central axis of the panel 11 at intervals, so that the deviation of the container body 20 in different directions can be ensured to be detected as much as possible, and the detection reliability is improved.

As shown in FIG. 3, in some embodiments, at least two of the first detecting elements 12 are equidistant from the central axis of the panel 11, and the outer contour of the heating region 111 is a circle centered on the central point of the panel 11.

In these embodiments, the outer bottom wall of the container body 20 is generally circular as shown in fig. 4, and the heating region 111 is correspondingly circular and located at the center of the panel 11 as shown in fig. 5. By making all the first detecting members 12 equidistant from the central axis of the panel 11, all the first detecting members 12 can be distributed on one concentric circle (i.e., a circle P1 shown in fig. 5) of the outer contour of the heating region 111, so that the distribution of the first detecting members 12 is adapted to the container body 20 which is conventionally used, and the same detecting effect in all directions is ensured, contributing to the improvement of the detecting accuracy. Specifically, the circle P2 shown in fig. 5 shows the contour of the outer bottom wall of the container body 20 when placed at the center of the panel 11, and the circle P3 shown in fig. 5 shows the contour of the outer bottom wall of the container body 20 when placed at a position offset from the center of the panel 11. in the case where the requirement that the radius of the circle P1 is smaller than the radius of the outer bottom wall of the container body 20 is satisfied, the larger the radius of the circle P1 (i.e., the distance of the first detector 12 from the center axis of the panel 11), the more easily the deviation of the container body 20 is detected, the higher the deviation prevention detection precision is, and the higher the placement accuracy requirement for the user is made. By reasonably designing the radius of the circle P1, the deviation prevention detection of a corresponding degree can be realized. For example, the ratio of the radius of the outer bottom wall of the container body 20, the circle P1, and the radius of the outer contour of the heating region 111 may be designed to be 6: 5: 4.

in some embodiments, at least two first sensing members 12 are membrane switches connected in series.

In the embodiments, the membrane switch can be triggered when the membrane switch bears an external force exceeding 2N, and the membrane switch has a simple structure, strong sensitivity, mature process and low cost. The membrane switch is often thin, usually only 0.3mm to 1mm, does not influence the smooth placement of the container body 20, and can be adhered to the panel 11 with its own gum for convenient arrangement. By selecting the membrane switch as the first detection piece 12 and connecting all the membrane switches in series, the circuit can be switched on when all the membrane switches are triggered simultaneously, and the triggered signal is output, so that the property of the circuit structure can be utilized to replace the reception and analysis of the detection result of each first detection piece 12, the data processing amount is reduced, and the detection reliability is improved. For example, as shown in fig. 3, when three membrane switches are connected in series, the signal line 15 of one membrane switch is directly connected to the controller 14, two poles of the other membrane switch are respectively connected to the other two membrane switches, and the signal line 15 of the third membrane switch is also directly connected to the controller 14. Specifically, as shown in fig. 6, the membrane switch is an FPC (Flexible Printed Circuit) membrane switch, and includes an outer-wrapping upper layer 121, an upper insulating layer 122, an upper conductive layer 123, a lower insulating layer 124, a lower conductive layer 125, and an outer-wrapping lower layer 126 from top to bottom, where the upper insulating layer 122 and the lower insulating layer 124 are only disposed around, so that an interlayer gap is formed between the outer-wrapping upper layer 121, the upper conductive layer 123, and the lower conductive layer 125, and when an external force is applied to the outer-wrapping upper layer 121 along the arrow direction shown in fig. 6, the outer-wrapping upper layer 121 and the upper conductive layer 123 are deformed by pressure, so that the upper conductive layer 123 and the lower conductive layer 125 are tightly attached to each other, the Circuit is conducted, and the membrane switch is triggered. When all the membrane switches are connected in series, the whole circuit can be conducted only by pressing each membrane switch to conduct the circuit, so that the container body 20 is determined to be arranged at the center of the panel 11, and the power can be switched on for the heating element.

In some embodiments, the at least two first detecting members 12 include at least one of: the thin film switch, the piezoelectric sensor and the photosensitive assembly are arranged in parallel, the photosensitive assembly comprises a photosensitive sensor and a light-transmitting part which are correspondingly arranged along the thickness direction of the panel 11, the photosensitive sensor is positioned on the inner side of the panel 11, and the light-transmitting part penetrates through the panel 11 along the thickness direction of the panel 11.

In these embodiments, the first detecting member 12 may be a membrane switch, a piezoelectric sensor, or a photosensitive element. The membrane switch and the piezoelectric sensor can be arranged on the outer side surface of the panel 11 to directly detect the touch pressure of the container body 20, so that the detection reliability is ensured. The piezoelectric sensor is made by using the principle of piezoelectric effect, in the gravity extrusion action of the container body 20, the dielectric medium in the container body is deformed (including bending and stretching deformation) under the action of external force in a certain direction, and due to the polarization phenomenon of internal charges, the phenomenon of charges can be generated on the surface of the dielectric medium, the electric signals can be transmitted to the controller 14, and whether the container body 20 exists or not can be judged by judging whether the electric signals exist or not, or whether the container body 20 is placed at the center of the panel 11 or not can be judged. Piezoelectric materials can be classified into piezoelectric single crystals, piezoelectric polycrystals, and organic piezoelectric materials. Most used in piezoelectric sensors are various piezoelectric ceramics belonging to piezoelectric polycrystals and quartz crystals among piezoelectric single crystals. Other piezoelectric single crystals include lithium niobate, lithium tantalate, lithium gallate, bismuth germanate and the like which are suitable for high-temperature radiation environments. The photosensitive element further comprises a photosensitive sensor located inside the panel 11 (i.e., the side of the panel 11 facing the interior of the liquid heating apparatus 10 without being in direct contact with the container body 20) and a light-transmissive portion extending through the panel 11. When the container body 20 is not placed, light can smoothly pass through the light-transmitting portion to reach the corresponding photosensitive sensor, and the corresponding photosensitive element is in an unfired state. When the container body 20 is placed on the panel 11 and the light-transmitting portion is specifically blocked, light cannot reach the corresponding photosensitive sensor, so that the corresponding photosensitive element is in a triggered state, and detection can be completed. The photosensitive member can sufficiently secure stable placement of the container body 20 since it does not change the surface flatness of the panel 11.

Optionally, the panel 11 and the light-transmitting portion are of an integrated structure, for example, for a quartz glass panel, the quartz glass panel itself is a transparent structure, and a light-shielding structure may be disposed in other regions of the quartz glass panel corresponding to the portions other than the light-transmitting portion, so that normal operation of the photosensitive component can be ensured, and other structures inside the liquid heating apparatus 10 can be shielded, so that the liquid heating apparatus 10 has an attractive appearance. In the case of a non-transparent structure such as a ceramic panel, a through hole may be provided in the panel 11, and the light-transmitting portion may be fitted into the through hole.

As shown in fig. 7 and 8, in some embodiments, at least one of the detecting members includes a second detecting member 13 provided at the center of the panel 11.

In these embodiments, by providing the second detection member 13 at the center of the panel 11, the in-place detection and the deviation prevention detection of the container body 20 can be completed by using only one detection member, which contributes to the simplification of the detection structure and the reduction of the product cost. Specifically, the circle P2 shown in fig. 9 shows the contour of the outer bottom wall of the container body 20 when it is placed at the center of the panel 11, the same as the circle P2 shown in fig. 5, the circles P4 and P5 shown in fig. 9 show the contour of the outer bottom wall of the container body 20 when it is deviated from the center of the panel 11 and the second detector 13 cannot be triggered, the larger the area covered by the second detector 13, the more easily the deviation of the container body 20 is detected, the higher the deviation prevention detection accuracy is, but the smaller the heating area 111 is accordingly. The size of the second part measuring part is reasonably arranged, so that the precision and the heating effect of deviation prevention detection can be balanced. Specifically, as shown in fig. 7 and 8, to provide the second detecting member 13, the heating region 111 may have a ring shape to leave a central position, and may further have a notch to facilitate the arrangement of the signal line 15.

It is understood that the liquid heating apparatus 10 may be provided with only the first detecting member 12, only the second detecting member 13, and both the first detecting member 12 and the second detecting member 13, which are implementations of the present invention and fall into the protection scope of the present invention.

In some embodiments, the second detection member 13 includes at least one of: the thin film switch, the piezoelectric sensor and the photosensitive assembly are arranged in parallel, the photosensitive assembly comprises a photosensitive sensor and a light-transmitting part which are correspondingly arranged along the thickness direction of the panel 11, the photosensitive sensor is positioned on the inner side of the panel 11, and the light-transmitting part penetrates through the panel 11 along the thickness direction of the panel 11.

In these embodiments, the second detecting element 13 may be a membrane switch, a piezoelectric sensor, or a photosensitive element. The membrane switch and the piezoelectric sensor can be arranged on the outer side surface of the panel 11 to directly detect the touch pressure of the container body 20, so that the detection reliability is ensured. The piezoelectric sensor is made by using the principle of piezoelectric effect, in the gravity extrusion action of the container body 20, the dielectric medium in the container body is deformed (including bending and stretching deformation) under the action of external force in a certain direction, and due to the polarization phenomenon of internal charges, the phenomenon of charges can be generated on the surface of the dielectric medium, the electric signals can be transmitted to the controller 14, and whether the container body 20 exists or not can be judged by judging whether the electric signals exist or not, or whether the container body 20 is placed at the center of the panel 11 or not can be judged. Piezoelectric materials can be classified into piezoelectric single crystals, piezoelectric polycrystals, and organic piezoelectric materials. Most used in piezoelectric sensors are various piezoelectric ceramics belonging to piezoelectric polycrystals and quartz crystals among piezoelectric single crystals. Other piezoelectric single crystals include lithium niobate, lithium tantalate, lithium gallate, bismuth germanate and the like which are suitable for high-temperature radiation environments. The photosensitive element further comprises a photosensitive sensor located inside the panel 11 (i.e., the side of the panel 11 facing the interior of the liquid heating apparatus 10 without being in direct contact with the container body 20) and a light-transmissive portion extending through the panel 11. When the container body 20 is not placed, light can smoothly pass through the light-transmitting portion to reach the corresponding photosensitive sensor, and the corresponding photosensitive element is in an unfired state. When the container body 20 is placed on the panel 11 and the light-transmitting portion is specifically blocked, light cannot reach the corresponding photosensitive sensor, so that the corresponding photosensitive element is in a triggered state, and detection can be completed. The photosensitive member can sufficiently secure stable placement of the container body 20 since it does not change the surface flatness of the panel 11.

Optionally, the panel 11 and the light-transmitting portion are of an integrated structure, for example, for a quartz glass panel, the quartz glass panel itself is a transparent structure, and a light-shielding structure may be disposed in other regions of the quartz glass panel corresponding to the portions other than the light-transmitting portion, so that normal operation of the photosensitive component can be ensured, and other structures inside the liquid heating apparatus 10 can be shielded, so that the liquid heating apparatus 10 has an attractive appearance. In the case of a non-transparent structure such as a ceramic panel, a through hole may be provided in the panel 11, and the light-transmitting portion may be fitted into the through hole.

As shown in fig. 2, in some embodiments, the liquid heating apparatus 10 may further include an outer cover 161 opened at both ends and a bottom cover 162 positioned at a bottom opening of the outer cover 161, and the panel 11 and the heating element may be disposed at a top opening of the outer cover 161.

As shown in fig. 1, in some embodiments, the liquid heating apparatus 10 may further include a control panel 163, and the control panel 163 may be partially exposed to the side opening of the housing 161 for the user to view and operate.

As shown in fig. 2, in some embodiments, the liquid heating apparatus 10 may further include a support plate 164 disposed inside the housing 161, and an insulation block 165 disposed between the support plate 164 and the panel 11, wherein the support plate 164 can provide support for the insulation block 165, and the insulation block 165 can reduce the heat transfer from the heating element to other structures inside the liquid heating apparatus 10, thereby helping to protect the liquid heating apparatus 10 from safe and stable operation.

As shown in fig. 2, in some embodiments, the liquid heating apparatus 10 may further include a fan 166 located in the outer casing 161 and facing the heat generating member, so as to dissipate heat from the heat generating member when it is necessary to stop heating, thereby reducing the effect of residual heat on the container body 20 and also reducing the risk of the user being scalded by the residual heat. The liquid heating apparatus 10 may further include a sealing cover 167 disposed inside the outer cover 161 and connected to the bottom cover 162, and the sealing cover 167 may provide a space for the fan 166 to reduce the influence of the hot air flowing during heat dissipation on other structures inside the liquid heating apparatus 10, and may also form a heat dissipation channel to increase the wind speed, which is helpful for improving the heat dissipation effect. Accordingly, heat dissipation channels communicating with the sealing cover 167 are also provided in the support plate 164 and the heat insulating block 165 to ensure heat dissipation effect.

As shown in fig. 10 and fig. 11, another embodiment of the present invention provides a liquid heating container 1, which includes a liquid heating apparatus 10 and a container body 20 as described in any of the above embodiments, so as to have all the beneficial effects of the liquid heating apparatus 10, and will not be described herein again. As shown in fig. 12, the container body 20 can be placed on the liquid heating apparatus 10, and can be selectively placed or removed. Further, the liquid heating container 1 further includes a container cover 30 for closing the container body 20, reducing heat loss and maintaining the interior of the container body 20 clean and sanitary. Optionally, the liquid heating vessel 1 is a separate health preserving cup.

In some embodiments, the outer bottom wall of the container body 20 conforms to the panel 11 of the liquid heating apparatus 10 with the container body 20 placed on the liquid heating apparatus 10.

In some embodiments, the outer bottom wall of the container body 20 is designed to be capable of being attached to the panel 11 of the liquid heating device 10, so that the container body 20 can be pressed against the panel 11 of the liquid heating device 10 under the action of gravity, which is not only convenient for heat transfer and improves the heating effect, but also convenient for the detection piece to be effectively triggered by the container body 20, and contributes to improving the detection reliability.

Although the embodiments of the present invention have been described in detail above, those skilled in the art may make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the utility model. It will be understood that such modifications and variations will still fall within the spirit and scope of the embodiments of the utility model as defined in the appended claims, as seen by those skilled in the art.

Claims (10)

1. Liquid heating device for a liquid heating vessel (1), characterised in that the liquid heating device (10) comprises:

-a panel (11) for placing a container body (20) of the liquid heating container (1);

at least one detection piece arranged on the panel (11), wherein the at least one detection piece can be triggered when an object is placed at a corresponding position;

a heating element connected to the panel (11);

the controller (14) is connected with the at least one detection piece and the heating piece, and the controller (14) is used for controlling the power on-off of the heating piece according to the triggering condition of the at least one detection piece.

2. Liquid heating device as claimed in claim 1,

the maximum distance between the at least one detector and the central axis of the panel (11) is less than the minimum distance from the contour of the outer bottom wall of the container body (20) to the central axis of the outer bottom wall of the container body (20).

3. Liquid heating device according to claim 2,

the surface of the panel (11) is provided with a heating area (111) corresponding to the heating element, and the heating area (111) is spaced from the at least one detection element.

4. Liquid heating device as claimed in claim 3,

the at least one detecting element comprises at least two first detecting elements (12) distributed at intervals around the central axis of the panel (11), and the minimum distance between the at least two first detecting elements (12) and the central axis of the panel (11) is larger than the maximum distance from the outer contour of the heating area (111) to the central point of the heating area (111).

5. Liquid heating device as claimed in claim 4,

the distances between the at least two first detection pieces (12) and the central axis of the panel (11) are equal, and the outer contour of the heating area (111) is a circle with the center point of the panel (11) as the center.

6. Liquid heating device as claimed in claim 4,

the at least two first detection pieces (12) are membrane switches connected in series; or

The at least two first detection members (12) comprise at least one of: the light-sensitive component comprises a light-sensitive sensor and a light-transmitting part, wherein the light-sensitive sensor and the light-transmitting part are correspondingly arranged in the thickness direction of the panel (11), the light-sensitive sensor is positioned on the inner side of the panel (11), and the light-transmitting part penetrates through the panel (11) in the thickness direction of the panel (11).

7. Liquid heating device according to any one of claims 1 to 6,

the at least one detection member comprises a second detection member (13) provided at the center of the panel (11).

8. Liquid heating device as claimed in claim 7,

the second detection member (13) includes at least one of: the light-sensitive component comprises a light-sensitive sensor and a light-transmitting part, wherein the light-sensitive sensor and the light-transmitting part are correspondingly arranged in the thickness direction of the panel (11), the light-sensitive sensor is positioned on the inner side of the panel (11), and the light-transmitting part penetrates through the panel (11) in the thickness direction of the panel (11).

9. A liquid heating vessel, comprising:

a liquid heating device (10) according to any one of claims 1 to 8; and

a container body (20), said container body (20) being capable of being placed on said liquid heating device (10).

10. A liquid heating vessel as claimed in claim 9,

in the case where the container body (20) is placed on the liquid heating apparatus (10), the outer bottom wall of the container body (20) is fitted to the panel (11) of the liquid heating apparatus (10).

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