CN219556947U - Liquid heating device - Google Patents

Abstract

The utility model provides a liquid heating device, which comprises a container assembly and a host assembly. The container assembly is for containing a liquid. The host assembly includes a housing, a heat shield, and a drain. An opening is formed at the top of the shell, and a shell drain hole is formed in the bottom wall of the shell; the heat shield is positioned in the shell, an opening is formed at the top of the heat shield, the container assembly is detachably arranged in the heat shield, the inner bottom wall of the heat shield is configured as an inclined surface, and a heat shield liquid draining hole is formed in the low-lying position of the bottom wall of the heat shield; the drainage piece is located between the interior bottom wall of casing and the outer bottom wall of heat exchanger, and the drainage piece includes drainage chamber and locates the drainage chamber flowing back hole of drainage chamber diapire, and the periphery at the heat exchanger flowing back hole is established to the drainage chamber cover, and drainage chamber flowing back hole is towards the casing flowing back hole. The utility model can effectively reduce the potential safety hazard that residual liquid in the heat shield enters the shell, contacts with electronic components in the shell and causes short circuit.

Description

Liquid heating device

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a liquid heating device.

Background

The electric thermos bottle can realize water boiling and hot water storage simultaneously, and the water storage capacity is larger, so that the electric thermos bottle is favored by consumers with larger requirements for drinking hot water. At present, the electric hot water bottle is usually of an integrated structure, the liner cannot be detached, and when water is received, a user or the whole electric hot water bottle is carried to a water tap to receive water, or a smaller container is used for carrying water for multiple times, or a barreled water matched with a water pump is used for adding water, so that the operation is inconvenient.

Therefore, electric hot water bottles with separable inner containers are proposed in the industry, but in order to realize the water outlet function, the inner containers and the bottom of a main machine are often provided with matched waterway communication devices, so that water in the inner containers can be led out. However, when the inner container is taken and placed, the electric thermos bottle is inevitably free from residual water flowing to the bottom of the main machine, and potential safety hazards of electric shock and short circuit exist.

Disclosure of Invention

Therefore, the present utility model is directed to a liquid heating apparatus, so as to at least solve the problem of reducing the potential safety hazard caused by the residual water in the liner.

According to one aspect of the present utility model, there is provided a liquid heating apparatus comprising a container assembly and a host assembly. The container assembly is for containing a liquid. The host assembly includes a housing, a heat shield, and a drain. An opening is formed at the top of the shell, and a shell drain hole is formed in the bottom wall of the shell; the heat shield is positioned in the shell, an opening is formed at the top of the heat shield, the container assembly is detachably arranged in the heat shield, the inner bottom wall of the heat shield is configured as an inclined surface, and a heat shield liquid draining hole is formed in the low-lying position of the bottom wall of the heat shield; the drainage piece is located between the interior bottom wall of casing and the outer bottom wall of heat exchanger, and the drainage piece includes drainage chamber and locates the drainage chamber flowing back hole of drainage chamber diapire, and the periphery at the heat exchanger flowing back hole is established to the drainage chamber cover, and drainage chamber flowing back hole is towards the casing flowing back hole.

According to the liquid heating device provided by the embodiment of the utility model, the container component and the host component can be arranged in a separated way, so that liquid can be conveniently added by a user. Meanwhile, the bottom wall of the heat shield of the host assembly is designed to be an inclined plane for residual liquid of the container assembly, and the heat shield liquid discharge holes are formed in the low-lying positions of the inclined plane, so that the residual liquid flowing onto the bottom wall of the heat shield can be drained to the heat shield liquid discharge holes, and then the heat shield is discharged and enters the shell. The bottom wall of casing still is provided with the casing apopore to set up the drainage piece between heat exchanger and casing, can utilize the drainage piece to shelter from the inside components and parts of protection casing towards the drainage chamber of heat exchanger apopore, and utilize the drainage piece to locate drainage chamber bottom wall and towards the drainage chamber apopore of casing apopore, will follow heat exchanger exhaust liquid drainage to casing apopore, and then outside the discharge casing, realized the smooth and easy discharge of residual liquid, effectively reduced the residual liquid and contacted the inside electronic components of casing and caused the potential safety hazard of short circuit.

In some embodiments, optionally, the inner bottom wall of the drainage lumen slopes downward from a side distal to the drainage lumen drain to a side proximal to the drainage lumen drain.

In this embodiment, by constructing the inner bottom wall of the drainage cavity as an inclined surface, and in particular, by inclining downward from a side away from the drainage cavity liquid discharge hole toward a direction close to the drainage cavity liquid discharge hole, the liquid dropped in the drainage cavity can be guided to flow to the drainage cavity liquid discharge hole, which helps to accelerate drainage cavity emptying, reduces the risk that a large amount of liquid in the drainage cavity is accumulated and overflows into the inside of the shell, and can reduce the risk that a small amount of liquid remains in the drainage cavity for a long time to locally mold and generate peculiar smell.

In some embodiments, optionally, the projections of the heat shield drain hole, the drainage cavity drain hole, and the housing drain hole in the vertical direction are at least partially coincident.

In these embodiments, the projections of the three liquid discharge holes in the vertical direction are at least partially overlapped, so that the three liquid discharge holes are approximately located on the same vertical line, that is, the positions of the three liquid discharge holes in the horizontal plane are close to each other, most of liquid can be ensured to be discharged out of the shell body through the three liquid discharge holes in sequence, liquid overflow to other positions in the liquid discharge process can be reduced, and smooth and reliable liquid discharge is fully ensured.

In some embodiments, optionally, the hole wall of the drainage cavity drain hole extends downwards and protrudes out of the outer bottom wall of the drainage cavity, and the projection of the drainage cavity drain hole along the vertical direction is located in the shell drain hole.

In these embodiments, by extending the hole wall of the drainage hole of the drainage cavity downward beyond the outer bottom wall of the drainage cavity, the liquid can be guided to flow downward, so that the risk that the liquid moves toward the outer bottom wall of the drainage cavity under tension and then drops out of the drainage hole of the casing and remains inside the casing is reduced. Meanwhile, the projection of the drainage cavity liquid discharge hole along the vertical direction is located in the shell liquid discharge hole, so that liquid flowing out of the drainage cavity liquid discharge hole can be guaranteed to enter the shell liquid discharge hole, and the risk of liquid residue is further reduced.

In some embodiments, optionally, the hole wall of the drain hole of the shell extends upwards and protrudes out of the inner bottom wall of the shell, and a drain hole is arranged at the hole wall of the drain hole of the shell, and the bottom edge of the drain hole is flush with the inner bottom wall of the shell.

In these embodiments, by making the hole wall of the casing drain hole protrude from the inner bottom wall of the casing and extend upward, the distance between the casing drain hole and the drainage cavity drain hole in the height direction can be shortened, and the risk that liquid overflows into the casing and remains can be further reduced. In addition, through setting up the leakage fluid dram of bottom edge and the interior bottom wall parallel and level of casing in the pore wall department of casing leakage fluid dram, can be under the inside circumstances that appears liquid of casing, introduce the casing leakage fluid dram with liquid from the leakage fluid dram, and then discharge, fully ensured the flowing back reliability.

In some embodiments, optionally, a rib is provided inside the drain hole of the housing, and the rib extends from the upper edge of the drain hole toward the center of the drain hole of the housing and bends downward.

In the embodiments, the rib inside the drain hole of the shell integrally presents the trend that the hole wall of the drain hole of the shell extends to the inside of the hole and the bottom of the hole, so that the liquid discharged from the drain hole of the drainage cavity can be guided to smoothly flow downwards and be discharged out of the shell, and the liquid is effectively prevented from returning into the shell through the drain hole, thereby being beneficial to improving the drain reliability and guaranteeing the safety of an electric appliance.

In some embodiments, optionally, the wall of the heat shield drain hole extends downward and protrudes from the outer bottom wall of the heat shield, into the drainage cavity.

In these embodiments, by extending the walls of the heat shield drain holes downwardly beyond the outer bottom wall of the heat shield and into the drainage cavity, liquid can be directed to flow downwardly, reducing the risk of liquid migrating under tension to the outer bottom wall of the heat shield and dripping out of the drainage piece and remaining inside the housing.

In some embodiments, optionally, the container assembly includes a container body and a container coupler in communication; the host assembly further comprises a host coupler, a water pump and a liquid outlet pipe which are sequentially communicated, wherein the host coupler is arranged on the bottom wall of the heat shield, and the host coupler is detachably communicated with the container coupler; the drainage piece also comprises a liquid collecting cavity communicated with the drainage cavity, and the liquid collecting cavity is covered on the periphery of the host coupler.

In these embodiments, a host coupler disposed on the bottom wall of the heat shield is in removable communication with the container coupler of the container assembly, forming a fluid supply path from the container body of the container assembly to the fluid outlet tube. Since the coupler is generally concentric with a large gap between adjacent rings, residual liquid may also drip into the housing from the gap between adjacent rings of the host coupler. Through further setting up the cover and establish at host computer coupler outlying liquid collecting chamber, can collect the liquid that drops the inside of casing from the clearance between the adjacent ring of host computer coupler, fully reduced the risk that liquid remained inside the casing, reduced the potential safety hazard.

In some embodiments, optionally, the liquid collecting cavity is provided with a via hole, the hole wall of the via hole extends upwards and protrudes out of the inner bottom wall of the liquid collecting cavity, and the liquid inlet pipeline of the water pump passes through the via hole.

In these embodiments, the inlet of the water pump is provided with a liquid inlet pipeline, the liquid inlet pipeline is communicated with the host coupler, and accordingly, the liquid collecting cavity is provided with a via hole for the liquid inlet pipeline to pass through, so that smooth and outward liquid supply of the liquid heating device can be ensured, the hole wall of the via hole protrudes out of the inner bottom wall of the liquid collecting cavity to extend upwards, the risk that liquid entering the liquid collecting cavity flows out of the via hole can be reduced, and the overall liquid discharging reliability is ensured.

In some embodiments, optionally, the drain further comprises a support frame at the bottom of the liquid collection cavity, the support frame contacting the inner bottom wall of the housing.

In the embodiments, the support frame arranged at the bottom of the liquid collecting cavity is configured for the drainage piece, so that the setting position of the drainage piece is stabilized, the communication relation among the drain holes of the heat shield, the drainage piece and the drain holes of the shell is further guaranteed, the capability of keeping residual liquid in the heat shield discharged is guaranteed, and potential safety hazards are fully reduced.

In some embodiments, optionally, the drainage member further comprises a water pump mounting bracket connected to the liquid collection chamber, the water pump being fixedly mounted below the water pump mounting bracket.

In these embodiments, the plenum faces the host coupler, which in turn communicates with the water pump, such that the water pump is positioned adjacent to the drain. Through the water pump installing support that is connected with the liquid collecting cavity for drainage piece configuration, can provide reliable installation space for the water pump in suitable position, ensured the reliable fixed of water pump. Meanwhile, the water pump is arranged below the water pump mounting bracket, namely, the direction deviating from the heat shield and facing the bottom wall in the shell, so that the water pump and the liquid in the drainage piece are located on different sides of the drainage piece, the risk that the liquid contacts the water pump is fully reduced, and the safe use of the water pump is ensured.

In some embodiments, optionally, the outer edge of the water pump mounting bracket is provided with an upwardly extending baffle, and the inner bottom wall of the water pump mounting bracket is inclined downwards from a side away from the liquid collecting cavity to a direction close to the liquid collecting cavity.

In these embodiments, the pump mount bracket, while not dedicated to the structure for receiving the liquid, still has the potential for liquid to splash onto the surface of the pump mount bracket due to the pump mount bracket being in communication with the liquid collection chamber. Especially to the embodiment that the water pump installing support is close to the via hole and arranges, this kind of embodiment can realize the rational arrangement of water pump, promotes the inside space utilization of casing. Through set up the baffle at the outer fringe of water pump installing support, can block the liquid on water pump installing support surface, reduce this part liquid and fall into the inside risk of casing from the outer fringe of water pump installing support. In addition, through making the interior bottom wall (that is, the surface that probably has liquid) of water pump installing support slope downwards towards the plenum chamber, can guide the liquid flow on the interior bottom wall of water pump installing support to the plenum chamber, and then drain through drainage chamber, drainage chamber apopore, casing apopore, help reducing the liquid residue and the accumulation of water pump installing support.

In some embodiments, optionally, the host assembly further comprises an inner housing located between the heat shield and the housing, at least a portion of the inner housing being affixed to the bottom of the heat shield, the inner housing being provided with a relief hole that avoids the heat shield drain hole; the drainage piece is located between the inner bottom wall of the shell and the inner shell, and is connected with the inner shell through a fastener.

In these embodiments, the inner casing that can be attached to the bottom of the heat shield is provided between the heat shield and the casing, so that the overall structural strength can be improved, and at this time, by providing the avoiding hole that avoids the liquid discharge hole of the heat shield in the inner casing, the smooth flow of the liquid discharged from the heat shield into the drainage member can be ensured. Through with drainage piece through fastener fixed connection to interior casing, can realize the reliable fixed of drainage piece with the help of interior casing to reduce the structural damage to heat exchanger and casing, can fully ensure overall structure intensity.

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 utility model will become more apparent from the following description of the embodiments thereof, taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of a liquid heating apparatus according to one embodiment of the utility model;

FIG. 2 is a cross-sectional view of FIG. 1 at section I-I in accordance with one embodiment of the utility model;

FIG. 3 is a bottom view of a liquid heating apparatus according to one embodiment of the utility model;

FIG. 4 is a schematic view of the structure of FIG. 2 with the top cover and container assembly removed, in accordance with one embodiment of the utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4 at J according to one embodiment of the utility model;

FIG. 6 is a schematic illustration of a container assembly according to one embodiment of the utility model;

FIG. 7 is a longitudinal cross-sectional view of a container assembly according to one embodiment of the utility model;

FIG. 8 is a schematic view of a flow guide according to one embodiment of the utility model;

FIG. 9 is a front view of a flow guide according to one embodiment of the present utility model;

FIG. 10 is a cross-sectional view of FIG. 9 at section K-K in accordance with one embodiment of the present utility model;

FIG. 11 is a top view of a flow guide according to one embodiment of the utility model;

FIG. 12 is a bottom view of a flow guide according to one embodiment of the present utility model;

FIG. 13 is a schematic view of a liquid heating vessel with the bottom cover, drain member, and water receiving box removed, in accordance with an embodiment of the present utility model;

fig. 14 is a schematic view of a structure of the liquid heating vessel according to an embodiment of the present utility model after the bottom cover and the water receiving box are removed.

Fig. 1 to 14 reference numerals illustrate:

10: a container assembly; 11: a container body; 12: a container coupler; 13: a heating plate; 14: a container cover; 20: a host component; 21: a housing; 211: a housing drain hole; 212: a bottom cover; 213: a liquid outlet; 214: a blocking rib; 22: a heat shield; 221: a heat shield drain hole; 23: a drainage member; 231: a drainage cavity; 232: drainage holes of the drainage cavity; 233: a liquid collection cavity; 234: a via hole; 235: a support frame; 236: a water pump mounting bracket; 237: a baffle; 238: a water pump mounting hole; 239: a drainage piece mounting hole; 24: a host coupler; 25: a water pump; 26: a liquid outlet pipe; 27: a liquid outlet nozzle; 28: a water receiving box; 29: an inner housing.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, but may be altered as will be apparent after an understanding of the disclosure of the utility model, except for operations that must occur in a specific order. Furthermore, 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 that will be apparent after an understanding of the present disclosure.

As used herein, the term "and/or" includes any one of the listed items associated as well as 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 member, first component, first region, first layer, or first portion referred to in the examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

In the description, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" or "coupled to" the other element, it can be directly "on" the other element, be directly "connected to" or be "coupled to" the other element, or one or more other elements intervening elements may be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" or "directly coupled to" another element, there may be no other element 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. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, amounts, operations, components, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, amounts, operations, components, elements, and/or combinations thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. Unless explicitly so defined herein, terms (such as those defined in a general dictionary) should be construed to have meanings consistent with their meanings in the context of the relevant art and the present utility model and should not be interpreted idealized or overly formal.

In addition, in the description of the examples, when it is considered that detailed descriptions of well-known related structures or functions will cause ambiguous explanations of the present utility model, such detailed descriptions will be omitted.

A liquid heating apparatus provided by an embodiment of the present utility model will be described with reference to fig. 1 to 14.

Embodiments of the present utility model provide a liquid heating vessel, as shown in fig. 1 and 2, a liquid heating apparatus comprising a vessel assembly 10 and a host assembly 20. The container assembly 10 is for containing a liquid. The host assembly 20 includes a housing 21, a heat shield 22, and a drain 23. The top of the housing 21 is formed with an opening, and the bottom wall of the housing 21 is provided with a housing drain hole 211 as shown in fig. 2 and 3; as shown in fig. 4 and 5, the heat shield 22 is positioned inside the shell 21, the top of the heat shield 22 forms an opening, the container assembly 10 is detachably arranged in the heat shield 22, the inner bottom wall of the heat shield 22 is configured as an inclined surface, and the bottom wall of the heat shield 22 is provided with a heat shield drain hole 221 at a low position; the drainage piece 23 is located between the inner bottom wall of the shell 21 and the outer bottom wall of the heat shield 22, the drainage piece 23 comprises a drainage cavity 231 and a drainage cavity drain hole 232 arranged on the bottom wall of the drainage cavity 231, the drainage cavity 231 is covered on the periphery of the heat shield drain hole 221, and the drainage cavity drain hole 232 faces the shell drain hole 211.

According to the liquid heating device provided by the embodiment of the utility model, the container assembly 10 and the host assembly 20 can be arranged in a separable way, so that liquid can be conveniently added by a user. Meanwhile, by designing the bottom wall of the heat shield 22 of the main body unit 20 as an inclined surface and providing the heat shield drain hole 221 in the low-lying position of the inclined surface, the residual liquid flowing onto the bottom wall of the heat shield 22 can be drained to the heat shield drain hole 221, and then the heat shield 22 can be discharged into the casing 21. The bottom wall of casing 21 still is provided with casing apocenosis hole 211 to set up drainage piece 23 between heat exchanger 22 and casing 21, can utilize drainage piece 23 to shelter from the inside components and parts of protection casing 21 towards the drainage chamber 231 of heat exchanger apocenosis hole 221, and utilize drainage piece 23 to locate drainage chamber 231 diapire and towards the drainage chamber apocenosis hole 232 of casing apocenosis hole 211, will follow the liquid drainage of heat exchanger 22 to casing apocenosis hole 211, and then outside the discharge casing 21, realized the smooth and easy discharge of residual liquid, effectively reduced the potential safety hazard that the residual liquid contacted the inside electronic components of casing 21 and caused the short circuit. As an example, as shown in fig. 5, the housing 21 may be divided into a main housing and a bottom cover 212, and the housing drain hole 211 is provided in the bottom cover 212.

Optionally, as shown in fig. 6 and 7, the container assembly 10 includes a container body 11 and a container coupler 12 that are connected, as shown in fig. 4, the host assembly 20 further includes a host coupler 24, a water pump 25 and a liquid outlet pipe 26 that are sequentially connected, a liquid outlet nozzle 27 is further disposed at an end of the liquid outlet pipe 26 away from the water pump 25, a water receiving box 28 detachably connected to the housing 21 is further disposed below the liquid outlet nozzle 27, and is used for receiving liquid dropped from the liquid outlet nozzle 27. A host coupler 24 is provided on the bottom wall of the heat shield 22, the host coupler 24 being in removable communication with the container coupler 12 to form a complete fluid supply path from the container body 11 of the container assembly 10 to the fluid outlet 27. Since the coupler is generally concentric with a large gap between adjacent rings, residual liquid may also drip into the interior of the housing 21 from the gap between adjacent rings of the host coupler 24. Accordingly, the host coupler 24 can be disposed at a height of the bottom wall of the heat shield 22, so that accumulation of residual liquid to the host coupler 24 can be reduced, and the amount of residual liquid dropped from the host coupler 24 into the housing 21 can be reduced. By way of example, the host coupler 24 is generally centrally disposed within the bottom wall of the heat shield 22 as shown in FIG. 4, and thus the bottom wall of the heat shield 22 may be configured as a centrally high, peripherally low slope with the heat shield drain hole 221 located near the edge of the bottom wall of the heat shield 22.

Further, as shown in fig. 7, the container assembly 10 further includes a heat-generating plate 13 located at the outer bottom wall of the container body 11 for heating the container body 11. Since the power supply is typically disposed within the housing 21 of the host assembly 20, it is also desirable to provide electrical couplers in the container assembly 10 and the host assembly 20 that provide separable electrical connections, as well as the host coupler 24 that provides fluid communication, the electrical couplers of the host assembly 20 also need to be disposed at an elevation above the bottom wall of the heat shield 22, which reduces the risk of shorting of the electrical couplers due to substantial accumulation of fluid. As an example, the coupling for fluid communication may be integrated with the coupling for electrical connection, i.e., the host coupler 24 and the container coupler 12 described above are both hydro-electric integrated couplings, which helps to simplify the construction.

Optionally, as shown in fig. 7, the container assembly 10 further includes a container cover 14 with an opening at one end, where the container body 11, the container coupler 12 and the heating plate 13 are all located in the container cover 14, so that the exposure of the structures such as the container body 11 and the container coupler 12 can be reduced, the appearance of the container assembly 10 is attractive, the risk that the internal structure is damaged by external force is reduced, the service life of the product is prolonged, the risk that the coupler for realizing electrical connection contacts with liquid in the liquid adding process is reduced, and the use safety is improved.

In some embodiments, optionally, as shown in fig. 8-10, the inner bottom wall of the drainage lumen 231 slopes downward from a side away from the drainage lumen drain 232 to a direction closer to the drainage lumen drain 232.

In this embodiment, by constructing the inner bottom wall of the drainage chamber 231 as an inclined surface, and in particular, by inclining downward from the side away from the drainage chamber drain hole 232 toward the direction close to the drainage chamber drain hole 232, the liquid dropped in the drainage chamber 231 can be guided to flow to the drainage chamber drain hole 232, helping to accelerate the evacuation of the drainage chamber 231, reducing the risk of the liquid in the drainage chamber 231 accumulating in a large amount and diffusing into the inside of the housing 21, and reducing the risk of local mildew and odor caused by the long-term residual of a small amount of liquid in the drainage chamber 231. As an example, as shown in fig. 10, the inner bottom wall of the drainage chamber 231 is an inclined plane and forms an angle α with the horizontal plane.

In some embodiments, optionally, as shown in fig. 5, the three projections of the heat shield drain hole 221, the drain cavity drain hole 232, and the housing drain hole 211 in the vertical direction are at least partially coincident.

In these embodiments, the projections of the three liquid discharge holes in the vertical direction are at least partially overlapped, so that the three liquid discharge holes are approximately located on the same vertical line, that is, the positions of the three liquid discharge holes in the horizontal plane are close, so that most of liquid can be ensured to be discharged out of the shell 21 through the three liquid discharge holes in sequence, the liquid overflow to other positions in the liquid discharge process can be reduced, and the smoothness and reliability of liquid discharge can be fully ensured.

In other embodiments, the drainage cavity drain hole 232 is disposed towards the housing drain hole 211, so that the projections of the drainage cavity drain hole 232 and the housing drain hole 211 in the vertical direction still at least partially coincide, but the projection of the heat shield drain hole 221 in the vertical direction can be away from the projections of the drainage cavity drain hole 232 and the housing drain hole 211 in the vertical direction, that is, in the horizontal plane, the heat shield drain hole 221 can be disposed away from the drainage cavity drain hole 232 and the housing drain hole 211, and the drainage cavity 231 drains the liquid drained from the heat shield drain hole 221 to the drainage cavity drain hole 232, so that the flexibility of design is fully improved.

In some embodiments, optionally, as shown in fig. 5, the hole wall of the drainage cavity drain hole 232 extends downward and protrudes from the outer bottom wall of the drainage cavity 231, and the projection of the drainage cavity drain hole 232 along the vertical direction is located in the housing drain hole 211.

In these embodiments, by extending the hole wall of the drainage cavity drain hole 232 downward beyond the outer bottom wall of the drainage cavity 231, the liquid can be guided to flow downward, and the risk that the liquid moves toward the outer bottom wall of the drainage cavity 231 under tension and then drops out of the casing drain hole 211 and remains inside the casing 21 can be reduced. Meanwhile, the projection of the drainage cavity drain hole 232 along the vertical direction is located in the shell drain hole 211, so that liquid flowing out of the drainage cavity drain hole 232 can be guaranteed to enter the shell drain hole 211, and the risk of liquid residue is further reduced.

In some embodiments, optionally, as shown in fig. 5, the hole wall of the shell drain hole 211 extends upward and protrudes from the inner bottom wall of the shell 21, and a drain hole 213 is provided at the hole wall of the shell drain hole 211, and the bottom edge of the drain hole 213 is flush with the inner bottom wall of the shell 21.

In these embodiments, by making the hole wall of the housing drain hole 211 protrude from the inner bottom wall of the housing 21 to extend upward, the distance between the housing drain hole 211 and the drainage chamber drain hole 232 in the height direction can be shortened, and the risk of liquid overflowing into the housing 21 and remaining can be further reduced. In addition, by providing the drain port 213 with the bottom edge flush with the inner bottom wall of the housing 21 at the hole wall of the housing drain hole 211, when the liquid appears in the housing 21, the liquid can be introduced into the housing drain hole 211 from the drain port 213, and then discharged, so that the reliability of the liquid discharge is fully ensured. Since the drainage member 23 is already reliably engaged with the heat shield drain hole 221 and the housing drain hole 211, the liquid present in the housing 21 is not the residual liquid drawn out from the heat shield 22, but mainly the condensed water possibly present on the outer wall surface of the drain pipe 26 or the liquid generated by the damage of the liquid supply passage.

Optionally, as shown in fig. 5, the hole wall of the drainage cavity drainage hole 232 extends into the casing drainage hole 211, so that the risk that the liquid drained from the drainage cavity drainage hole 232 flows out of the casing drainage hole 211 can be further reduced, and the drainage reliability can be guaranteed.

In some embodiments, as shown in fig. 5, optionally, a rib 214 is disposed inside the drain hole 211 of the housing, and the rib 214 extends from the upper edge of the drain hole 213 toward the center of the drain hole 211 of the housing and is bent downward.

In these embodiments, the rib 214 in the drain hole 211 of the housing entirely presents a trend extending from the hole wall of the drain hole 211 of the housing to the inside of the hole and the bottom of the hole, so that the liquid drained from the drain hole 232 of the drainage cavity can be guided to flow downward smoothly and drain out of the housing 21, thereby effectively blocking the liquid from flowing back into the housing 21 through the drain hole 213, helping to improve the reliability of drain and ensuring the safety of electrical appliances. Optionally, the ribs 214 remain attached to the walls of the housing drain hole 211 on both sides during extension to the inside of the hole and the bottom of the hole, thereby achieving a sufficient barrier.

In some embodiments, optionally, as shown in FIG. 5, the walls of the heat shield drain hole 221 extend downward and protrude from the outer bottom wall of the heat shield 22, into the drainage lumen 231.

In these embodiments, by extending the walls of the heat shield drain hole 221 downward beyond the outer bottom wall of the heat shield 22 and into the drainage cavity 231, the liquid can be guided to flow downward, reducing the risk of the liquid moving toward the outer bottom wall of the heat shield 22 under tension and further dripping out of the drainage piece 23 and remaining inside the casing 21. As an example, the housing 21 of the host assembly 20 is an outer housing, and an inner housing 29 may be further disposed between the heat shield 22 and the housing 21 to improve structural strength, and at this time, a avoiding hole avoiding the heat shield drain hole 221 may be disposed in the inner housing 29, and a hole wall of the heat shield drain hole 221 may extend into the drainage cavity 231 through the avoiding hole.

In some embodiments, optionally, as shown in fig. 5, 8 and 11, the drainage member 23 further includes a liquid collecting cavity 233 in communication with the drainage cavity 231, and the liquid collecting cavity 233 is covered on the periphery of the host coupler 24.

In these embodiments, by further providing the liquid collecting chamber 233 covering the periphery of the main body coupler 24, the liquid dripping into the housing 21 from the gap between the adjacent rings of the main body coupler 24 can be collected, the risk of liquid remaining in the housing 21 is sufficiently reduced, and the safety hazard is reduced. As an example, the inlet of the water pump 25 is provided with a liquid inlet pipeline, the liquid inlet pipeline is communicated with the host coupler 24, and accordingly, the liquid collecting cavity 233 is provided with a through hole 234 for the liquid inlet pipeline to pass through, so that the liquid heating device can be ensured to smoothly supply liquid outwards, the hole wall of the through hole 234 extends upwards and protrudes out of the inner bottom wall of the liquid collecting cavity 233, the risk that the liquid entering the liquid collecting cavity 233 flows out of the through hole 234 can be reduced, and the overall liquid discharging reliability is ensured.

Alternatively, as shown in fig. 5, the inner bottom wall of the liquid collecting cavity 233 is inclined downward from the side away from the drainage cavity 231 toward the direction approaching the drainage cavity 231, so that the liquid dropped through the host coupler 24 can be ensured to smoothly flow into the drainage cavity 231 and be discharged from the drainage cavity drain hole 232.

In some embodiments, optionally, as shown in fig. 5, the drainage member 23 further includes a support 235 at the bottom of the liquid collection cavity 233, and the support 235 contacts the inner bottom wall of the housing 21.

In these embodiments, by configuring the drainage member 23 with the supporting frame 235 located at the bottom of the liquid collecting cavity 233, the setting position of the drainage member 23 is facilitated to be stabilized, so that the communication relationship among the drainage member 23, the drainage member 221 and the drainage hole 211 of the shell is ensured, the capability of keeping the residual liquid in the heat insulation cover 22 discharged is facilitated to be ensured, and the potential safety hazard is fully reduced.

Alternatively, the support 235 may be a cylindrical support to achieve stable support; as shown in fig. 9 and 12, the support 235 may also be an arc-shaped plate support, that is, a part of the support is removed in the circumferential direction on the basis of a cylindrical support, so as to avoid the water pump 25, mainly, avoid the liquid inlet pipeline of the water pump 25 (see fig. 14).

In some embodiments, optionally, as shown in fig. 8 to 14, the drainage member 23 further includes a water pump mounting bracket 236 connected to the liquid collection cavity 233, and the water pump 25 is fixedly mounted under the water pump mounting bracket 236.

In these embodiments, the plenum 233 faces the host coupler 24, and the host coupler 24 communicates with the water pump 25, such that the water pump 25 is positioned adjacent to the drain 23. By providing the drainage member 23 with the water pump mounting bracket 236 connected to the liquid collection chamber 233, a reliable mounting space can be provided for the water pump 25 at a proper position, and reliable fixation of the water pump 25 is ensured. Meanwhile, the water pump 25 is arranged below the water pump mounting bracket 236, as shown in fig. 4, that is, the direction away from the heat shield 22 and towards the inner bottom wall of the shell 21 can enable the water pump 25 and the liquid in the drainage piece 23 to be located on different sides of the drainage piece 23, so that the risk that the liquid contacts the water pump 25 is fully reduced, and the safe use of the water pump 25 is ensured. As an example, as shown in fig. 8, the water pump mounting bracket 236 is provided with water pump mounting holes 238, which can be engaged with fasteners to fixedly mount the water pump 25 on the water pump mounting bracket 236, with the water pump mounting holes 238 being, for example, two in parallel.

In some embodiments, the outer edge of the water pump mounting bracket 236 is optionally provided with an upwardly extending baffle 237, and the inner bottom wall of the water pump mounting bracket 236 slopes downwardly from a side away from the sump 233 to a direction toward the sump 233.

In these embodiments, the water pump mounting bracket 236 is not dedicated to the structure for receiving the liquid, but since the water pump mounting bracket 236 is in communication with the liquid collection chamber 233, there is still a possibility that the liquid may splash onto the surface of the water pump mounting bracket 236. In particular, for the embodiment in which the water pump mounting bracket 236 is disposed close to the through hole 234 as shown in fig. 8, such an embodiment enables reasonable arrangement of the water pump 25, and improves the space utilization inside the housing 21. By providing the baffle 237 on the outer edge of the water pump mounting bracket 236, the liquid on the surface of the water pump mounting bracket 236 can be blocked, and the risk that the liquid falls into the housing 21 from the outer edge of the water pump mounting bracket 236 is reduced. In addition, by making the inner bottom wall (i.e., the surface where the liquid may be present) of the water pump mounting bracket 236 slope downward toward the liquid collection chamber 233, the liquid on the inner bottom wall of the water pump mounting bracket 236 can be guided to flow to the liquid collection chamber 233 and be discharged through the drainage chamber 231, the drainage chamber discharge hole 232, and the housing discharge hole 211, which helps to reduce the liquid residue and accumulation of the water pump mounting bracket 236.

In some embodiments, optionally, the host assembly 20 further includes an inner housing 29 between the heat shield 22 and the housing 21, at least a portion of the inner housing 29 fitting to the bottom of the heat shield 22, the inner housing 29 being provided with a relief hole that avoids the heat shield drain hole 221; the drainage member 23 is located between the inner bottom wall of the housing 21 and the inner housing 29, and the drainage member 23 is connected to the inner housing 29 via fasteners.

In these embodiments, the inner case 29 capable of being bonded to the bottom of the heat shield 22 is provided between the heat shield 22 and the case 21, so that the overall structural strength can be improved, and at this time, by providing the avoiding hole avoiding the heat shield drain hole 221 in the inner case 29, the smooth flow of the liquid discharged from the heat shield 22 into the drain 23 can be ensured. By fixedly connecting the flow guide 23 to the inner housing 29 via the fastening member, reliable fixing of the flow guide 23 can be achieved by means of the inner housing 29, and structural damage to the heat shield 22 and the housing 21 can be reduced, and the overall structural strength can be sufficiently ensured. As an example, as shown in fig. 8, 11 and 12, the drainage member 23 may be fixedly mounted on the inner housing 29 by providing drainage member mounting holes 239, which are matched with fasteners, on the outer edge of the main body structure of the drainage member 23, for example, four drainage member mounting holes 239 are integrally formed around the outer periphery of the liquid collecting cavity 233, two of which are provided on the outer edge of the liquid collecting cavity 233, and the other two of which are provided on the outer edge of the water pump mounting bracket 236.

Although embodiments of the present utility model have been described in detail hereinabove, various modifications and variations may be made to the embodiments of the utility model by those skilled in the art without departing from the spirit and scope of the utility model. It will be appreciated that such modifications and variations will be apparent to those skilled in the art that they will fall within the spirit and scope of the embodiments of the utility model as defined in the appended claims.

Claims (13)

1. A liquid heating apparatus, characterized in that the liquid heating apparatus comprises:

a container assembly (10) for containing a liquid; and

a host assembly (20), the host assembly (20) comprising:

the device comprises a shell (21), wherein an opening is formed at the top of the shell (21), and a shell drain hole (211) is formed in the bottom wall of the shell (21);

the heat shield (22) is positioned in the shell (21), an opening is formed at the top of the heat shield (22), the container assembly (10) is detachably arranged in the heat shield (22), the inner bottom wall of the heat shield (22) is configured to be an inclined surface, and a heat shield drain hole (221) is formed in the low-lying position of the bottom wall of the heat shield (22); and

the drainage piece (23) is located between the inner bottom wall of the shell (21) and the outer bottom wall of the heat shield (22), the drainage piece (23) comprises a drainage cavity (231) and a drainage cavity liquid discharge hole (232) formed in the bottom wall of the drainage cavity (231), the drainage cavity (231) is covered on the periphery of the heat shield liquid discharge hole (221), and the drainage cavity liquid discharge hole (232) faces the shell liquid discharge hole (211).

2. A liquid heating apparatus as claimed in claim 1, wherein,

the inner bottom wall of the drainage cavity (231) is inclined downwards from one side far away from the drainage cavity liquid discharge hole (232) to the direction close to the drainage cavity liquid discharge hole (232).

3. A liquid heating apparatus as claimed in claim 1, wherein,

the projections of the heat shield liquid discharge hole (221), the drainage cavity liquid discharge hole (232) and the shell liquid discharge hole (211) along the vertical direction are at least partially overlapped.

4. A liquid heating apparatus as claimed in claim 1, wherein,

the hole wall of the drainage cavity liquid discharge hole (232) extends downwards and protrudes out of the outer bottom wall of the drainage cavity (231), and the projection of the drainage cavity liquid discharge hole (232) along the vertical direction is located in the shell liquid discharge hole (211).

5. A liquid heating apparatus as claimed in claim 4, wherein,

the pore wall of the shell liquid draining hole (211) extends upwards and protrudes out of the inner bottom wall of the shell (21), a liquid draining hole (213) is formed in the pore wall of the shell liquid draining hole (211), and the bottom edge of the liquid draining hole (213) is flush with the inner bottom wall of the shell (21).

6. A liquid heating apparatus as claimed in claim 5, wherein,

the inside of casing flowing back hole (211) is equipped with fender muscle (214), fender muscle (214) follow the top edge of leakage fluid dram (213) to the center of casing flowing back hole (211) extends and buckle downwards.

7. A liquid heating apparatus as claimed in claim 1, wherein,

the hole wall of the heat shield liquid discharge hole (221) extends downwards and protrudes out of the outer bottom wall of the heat shield (22) to extend into the drainage cavity (231).

8. A liquid heating apparatus as claimed in any one of claims 1 to 7, wherein,

the container assembly (10) comprises a container body (11) and a container coupler (12) which are communicated;

the host assembly (20) further comprises a host coupler (24), a water pump (25) and a liquid outlet pipe (26) which are sequentially communicated, wherein the host coupler (24) is arranged on the bottom wall of the heat shield (22), and the host coupler (24) is detachably communicated with the container coupler (12);

the drainage piece (23) further comprises a liquid collecting cavity (233) communicated with the drainage cavity (231), and the liquid collecting cavity (233) is covered on the periphery of the host coupler (24).

9. A liquid heating apparatus as claimed in claim 8, wherein,

the liquid collecting cavity (233) is provided with a through hole (234), the hole wall of the through hole (234) extends upwards and protrudes out of the inner bottom wall of the liquid collecting cavity (233), and a liquid inlet pipeline of the water pump (25) penetrates through the through hole (234).

10. A liquid heating apparatus as claimed in claim 8, wherein,

the drainage piece (23) further comprises a support frame (235) positioned at the bottom of the liquid collecting cavity (233), and the support frame (235) is in contact with the inner bottom wall of the shell (21).

11. A liquid heating apparatus as claimed in claim 8, wherein,

the drainage piece (23) further comprises a water pump mounting bracket (236) connected with the liquid collecting cavity (233), and the water pump (25) is fixedly mounted below the water pump mounting bracket (236).

12. A liquid heating apparatus as claimed in claim 11, wherein,

the outer fringe of water pump installing support (236) is equipped with the baffle (237) that upwards extend, the interior bottom wall of water pump installing support (236) is from keeping away from one side of collecting liquid chamber (233) to be close to the direction of collecting liquid chamber (233) downward sloping.

13. A liquid heating apparatus as claimed in claim 1, wherein,

the host assembly (20) further comprises an inner shell (29) positioned between the heat shield (22) and the shell (21), at least part of the inner shell (29) is attached to the bottom of the heat shield (22), and the inner shell (29) is provided with an avoidance hole avoiding the liquid discharge hole (221) of the heat shield;

the drainage piece (23) is located between the inner bottom wall of the shell (21) and the inner shell (29), and the drainage piece (23) is connected with the inner shell (29) through a fastener.