Heat exchange assembly and water drinking equipment

Abstract

The embodiment of the utility model provides a heat exchange assembly and drinking water equipment, and the heat exchange assembly comprises a cold water tank used for containing cold water; the heat exchange pipe comprises an inner-layer pipe and an outer-layer pipe arranged outside the inner-layer pipe in a sleeving mode, one cold water tank in the inner-layer pipe and the outer-layer pipe serves as a cold water pipe and communicates with the cold water tank, and the other cold water tank in the inner-layer pipe and the outer-layer pipe serves as a hot water pipe and communicates with the water heater, so that hot water heated by the water heater flows through the hot water pipe; and the first water pumping device communicates with the cold water pipe and can drive cold water in the cold water tank to flow through the cold water pipe so as to exchange heat with hot water flowing through the hot water pipe. The heat exchange assembly provided by the embodiment of the utility model is provided with the double-layer heat exchange pipe, and the design of the double-layer heat exchange pipe can increase the heat exchange area of cold water and hot water and improve the heat exchange efficiency, so that the hot water can be quickly cooled, and drinking water with proper temperature can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drinking water devices, in particular to a heat exchange assembly and a drinking water equipment. BACKGROUND

[0002] The existing water boiling products cannot achieve rapid cooling. Users want to drink warm water and need to wait for a long time, especially in summer. The electric thermos bottle and other products generally need to wait for more than 1 hour. The existing solutions for cooling hot water mainly include the following two kinds: one is to reduce the water temperature in the inner container of the electric thermos bottle through air cooling. This solution has a long cooling time. The other is to set an electronic ice tank and cool it with a semiconductor refrigeration device. This solution has high cost and large space occupation. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve the problem of slow cooling of hot water in the existing electric thermos bottle and other products.

[0004] To this end, the first aspect of the present application provides a heat exchange assembly for a drinking water equipment, the drinking water equipment comprising a hot water machine for preparing hot water. The heat exchange assembly comprises: a cold water tank for containing cold water; a heat exchange pipe, the heat exchange pipe comprising an inner layer pipe and an outer layer pipe sleeved outside the inner layer pipe, one of the inner layer pipe and the outer layer pipe serving as a cold water pipe and being in communication with the cold water tank, and the other serving as a hot water pipe and being in communication with the hot water machine, so that the hot water heated by the hot water machine flows through the hot water pipe; and a first water pumping device in communication with the cold water pipe, the first water pumping device being capable of driving the cold water in the cold water tank to flow through the cold water pipe to exchange heat with the hot water flowing through the hot water pipe.

[0005] The heat exchange assembly proposed by the present embodiment sets a double-layer heat exchange pipe, the heat exchange pipe comprising an inner layer pipe and an outer layer pipe sleeved outside the inner layer pipe, one of the inner layer pipe and the outer layer pipe being in communication with the cold water tank for the cold water to flow and serving as a cold water pipe, and the other being in communication with the drinking water equipment for the hot water of the drinking water equipment to flow and serving as a hot water pipe. The design of such a double-layer heat exchange pipe can increase the heat exchange area of the cold water and the hot water and improve the heat exchange efficiency, so that the hot water can be rapidly cooled and the drinking water with a suitable temperature can be obtained.

[0006] In some embodiments, the outer layer pipe is provided with an outer layer pipe water inlet hole and an outer layer pipe water outlet hole, the inner layer pipe is provided with an inner layer pipe water inlet hole and an inner layer pipe water outlet hole, the outer layer pipe water inlet hole and the inner layer pipe water inlet hole are arranged at a first end of the heat exchange pipe, and the outer layer pipe water outlet hole and the inner layer pipe water outlet hole are arranged at a second end of the heat exchange pipe. In this way, the cold water and the hot water enter the inner layer pipe and the outer layer pipe of the heat exchange pipe from the same end of the heat exchange pipe, so that the heat exchange is more uniform, and the cold water and the hot water are prevented from entering in the opposite direction, which causes the first cup of water to be cooled too much and the outlet water temperature to be too low, so that the user cannot drink.

[0007] In some embodiments, the heat exchange pipe is coiled in a spiral shape to form a containing space in the middle part thereof, and the first water pumping device is arranged in the containing space. In this way, on the one hand, the coiled arrangement of the heat exchange pipe can reduce the occupied space as much as possible on the basis of increasing the length of the heat exchange pipe, and on the other hand, the middle space of the coiled heat exchange pipe forms a containing space in which the first water pumping device can be installed, so that the space can be more reasonably utilized and the volume of the heat exchange assembly can be reduced as much as possible.

[0008] In some embodiments, the end of the outer layer pipe is sealingly connected to the outer wall of the inner layer pipe, and the outer layer pipe water inlet hole and the outer layer pipe water outlet hole are arranged on the side wall of the outer layer pipe.

[0009] In these embodiments, the end of the outer layer pipe is sealingly connected to the outer wall of the inner layer pipe, and the outer layer pipe water inlet hole and the outer layer pipe water outlet hole are arranged on the side wall of the outer layer pipe, so that the positions of the water inlet and outlet of the inner layer pipe can be staggered with the positions of the outer layer pipe water inlet hole and the outer layer pipe water outlet hole, which is beneficial to the connection of the pipeline.

[0010] In some embodiments, the outer layer pipe is connected to the cold water tank to serve as a cold water pipe, and the inner layer pipe is connected to the water heater to serve as a hot water pipe. In this way, the outer layer pipe is arranged as a cold water pipe, which is beneficial to dissipating the heat absorbed by the cold water from the outer layer pipe to the outside, thereby improving the heat exchange efficiency. In addition, since the temperature of the drinking water is relatively high, the heat exchange assembly can be prevented from being overheated when the hot water pipe is arranged on the outside, thereby prolonging the service life of the electrical components.

[0011] In some embodiments, the heat exchange assembly further comprises: a water inlet guide column and a water outlet guide column, which are protrusively arranged on the side wall of the outer layer pipe and connected with the water inlet hole and the water outlet hole of the outer layer pipe respectively; a first connecting pipe, a first end of which is connected with the water inlet guide column and a second end of which is connected with the water outlet of the cold water tank; a second connecting pipe, a first end of which is connected with the water outlet guide column and a second end of which is connected with the water inlet of the cold water tank; and a first water pumping device connected with the first connecting pipe or the second connecting pipe, so that the cold water can flow and circulate between the cold water tank and the outer layer pipe. In this way, the arrangement of the water inlet guide column and the water outlet guide column facilitates the connection between the outer layer pipe and the first connecting pipe and the second connecting pipe. Specifically, the water inlet guide column is connected with the first connecting pipe through plug-in connection, and the water outlet guide column is connected with the second connecting pipe through plug-in connection, so that the connection structure is simple and easy to operate. Further, the first connecting pipe, the second connecting pipe, the cold water pipe and the cold water tank are connected to form a closed loop, and the first water pumping device enables the cold water to flow and circulate in the closed loop, so that the cold water in the cold water pipe can return to the cold water tank for repeated use. Specifically, the cold water tank is provided with a water outlet and a water inlet, the water outlet is connected with the first connecting pipe and the water inlet guide column in sequence, so that the cold water enters the cold water pipe through the flow channel, and after heat exchange with the hot water in the heat exchange pipe, the cold water returns to the cold water tank through the water outlet guide column, the second connecting pipe and the water inlet in sequence, thereby realizing the repeated use of the cold water and avoiding the increase of cost and volume caused by the additional setting of a water tank for recycling the cold water after heat exchange.

[0012] In some embodiments, the heat exchange assembly further comprises: a temperature detection device arranged at the water inlet end of the cold water pipe and used for detecting the temperature of the cold water flowing into the cold water pipe. In this way, by detecting the temperature of the cold water flowing into the cold water pipe and adjusting the flow of the first water pumping device, the cooling effect is more controllable, and the temperature of the water after heat exchange through the hot water pipe approaches the specified water temperature of the customer, thereby avoiding excessively low or high water temperature.

[0013] In some embodiments, the inner diameter of the inner layer pipe is greater than or equal to 3 mm. In this way, the resistance caused by the too small pipe diameter of the inner layer pipe can be prevented, and the problem of difficulty in discharging water caused by the second water pumping device being unable to pump out the hot water can be avoided.

[0014] The second aspect of the present application provides a water drinking device, which comprises a water heater and the heat exchange assembly provided by any one of the embodiments of the first aspect. Therefore, the water drinking device provided by the embodiments of the present application has all the beneficial effects of the heat exchange assembly provided by any one of the embodiments of the first aspect, which will not be listed here. Further, the hot water pipe of the heat exchange assembly is connected with the water heater, and when it is necessary to cool the water in the water heater, the water in the water heater flows into the hot water pipe and exchanges heat with the cold water in the cold water pipe, thereby realizing the cooling of the water in the water heater, and the structure is simple and the cooling speed is fast.

[0015] In some embodiments, the water heater further comprises: a drinking water outlet; a hot water supply pipe connecting the water heater and the drinking water outlet; a second water pumping device connected to the hot water supply pipe, the second water pumping device being capable of causing hot water to flow in the hot water supply pipe; an electromagnetic three-way valve, an inlet of the electromagnetic three-way valve being connected to the hot water supply pipe, a first outlet of the electromagnetic three-way valve being connected to the drinking water outlet, and a second outlet of the electromagnetic three-way valve being connected to a hot water pipe, a water outlet of the hot water pipe being connected to the drinking water outlet. In this way, the electromagnetic three-way valve is arranged to enable the water at the drinking water outlet to be switched between hot water and warm water, and the water outlet is more versatile and can better meet the various needs of users. When the user needs warm water, the inlet and the second outlet of the electromagnetic three-way valve are communicated, the hot water in the hot water pipe is transported into the hot water pipe for cooling, and the cooled water flows out through the drinking water outlet; when the user needs hot water, the inlet and the first outlet of the electromagnetic three-way valve are communicated, and the hot water does not flow through the heat exchange assembly and directly flows out through the drinking water outlet.

[0016] Further aspects and / or advantages of the present general inventive concept will be described in part below with reference to the following description and drawings in which: BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects and features of the present application will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a structural schematic view of a drinking water equipment according to an embodiment of the present application;

[0019] Figure 2 is another structural schematic view of a drinking water equipment according to an embodiment of the present application;

[0020] Figure 3 is a structural schematic view of a heat exchange pipe of a heat exchange assembly according to an embodiment of the present application;

[0021] Figure 4 is another structural schematic view of a heat exchange pipe of a heat exchange assembly according to an embodiment of the present application;

[0022] Figure 5 is still another structural schematic view of a drinking water equipment according to an embodiment of the present application;

[0023] Figure 6 is yet another structural schematic view of a drinking water equipment according to an embodiment of the present application.

[0024] Figures 1 to 6 BRIEF DESCRIPTION OF DRAWINGS

[0025] 10 cold water tank, 20 heat exchange pipe, 210 inner layer pipe, 211 inner layer pipe water inlet hole, 212 inner layer pipe water outlet hole, 220 outer layer pipe, 221 water inlet guide column, 310 first water pumping device, 320 first connecting pipe, 330 second connecting pipe, 340 temperature detecting device,

[0026] 40 hot water machine, 420 hot water supply pipe, 430 second water pumping device, 440 electromagnetic three-way valve, 441 inlet, 442 first outlet, 443 second outlet, 450 third connecting pipe, 460 fourth connecting pipe. DETAILED DESCRIPTION

[0027] The following detailed description is presented to aid in understanding the method, apparatus and / or system described herein. It is not intended to limit the method, apparatus and / or system described herein to the exact construction details described. Various changes, modifications and equivalents can be resorted to without departing from the application as described in the disclosure. For example, the order in which operations are described is not necessarily the order in which operations are performed. Also, the various examples described herein are meant to be examples and not meant to be limiting. Furthermore, features known to those in the art can be omitted for the sake of clarity and brevity.

[0028] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided as example so as to demonstrate in part the many possible forms the method, apparatus and / or system described herein can take. It is understood that having demonstrated the disclosure of the present application, various alterations, modifications, and equivalents can be resorted to without departing from the spirit of the application.

[0029] As used herein, the term "and / or" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items.

[0030] Although terms such as "first", "second" and "third" can be used herein to describe various components, assemblies, regions, layers or sections, these components, assemblies, regions, layers or sections should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer or section from another component, assembly, region, layer or section. Thus, a component, assembly, region, layer or section referred to as a first component, a first assembly, a first region, a first layer or a first section in the examples described herein can also be referred to as a second component, a second assembly, a second region, a second layer or a second section without departing from the teachings of the examples.

[0031] 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" another element, it can be directly on the other element or directly connected or coupled to the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on", "directly connected to", or "directly coupled to" another element, there are no other elements interposed therebetween.

[0032] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein, specify the presence of stated features, numbers, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0033] The terms "upper", "lower", "top", "bottom", and the like in the present application are defined based on the orientation of the product when it is placed upright in a normal use state.

[0034] 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 application belongs when read in light of the entire disclosure of this application. Unless otherwise expressly defined herein, terms such as, for example, "in" and "on" are to be construed as in their broadest context, and are not to be limited to the idealized or overly formalistic interpretations.

[0035] In addition, in the description of the examples, when it is considered that a detailed description of the related structure or function known to be understood will cause ambiguity in the interpretation of the present application, such a detailed description will be omitted.

[0036] The following will be described in conjunction with Figures 1 to 6 The heat exchange assembly and the water drinking device of some embodiments of the present application are described below.

[0037] As Figures 1 to 4As shown, the embodiment of the first aspect of the utility model provides a heat exchange assembly for a water drinking equipment, the water drinking equipment includes a hot water machine 40 for preparing hot water, the heat exchange assembly includes: a cold water tank 10 for containing cold water; a heat exchange pipe 20, the heat exchange pipe 20 includes inner layer pipe 210 and the outer layer pipe 220 of the sleeve set in the outer portion of inner layer pipe 210, one of inner layer pipe 210 and the outer layer pipe 220 is used as cold water pipe and is communicated with the cold water tank 10, and the other is used as hot water pipe and is communicated with the hot water machine 40, so that the hot water after the hot water machine 40 heating flows through the hot water pipe, the first water pumping device 310 is communicated with the cold water pipe, and the first water pumping device 310 can drive the cold water in the cold water tank 10 to flow through the cold water pipe to exchange heat with the hot water flowing through the hot water pipe. The heat exchange assembly of the embodiment of the present aspect is provided with double-layer heat exchange pipe 20, the heat exchange pipe 20 includes inner layer pipe 210 and the outer layer pipe 220 of the sleeve set in the outer portion of inner layer pipe 210, one of inner layer pipe 210 and the outer layer pipe 220 is communicated with the cold water tank 10 for the cold water flow and is used as cold water pipe, and the other is communicated with the water drinking equipment for the hot water flow of the water drinking equipment and is used as hot water pipe, the design of this double-layer heat exchange pipe 20 can increase the heat exchange area of cold water and hot water, improve the heat exchange efficiency, so that the hot water can be rapidly cooled, and the drinking water with suitable temperature is obtained.

[0038] In the present application, since water has the advantages of safety, low cost and convenient replacement, cold water is used as cooling liquid to cool hot water. However, it does not mean that only cold water can be used as cooling liquid, and other suitable liquid can also be used as cooling liquid. Therefore, the terms "cold water", "cold water tank", "cold water pipe" and the like used in the present specification are only for convenient description, and are not intended to limit the cooling liquid to cold water.

[0039] In some embodiments, the water outlet of the cold water pipe is connected with the cold water tank 10, so that the cold water in the cold water pipe can flow back to the cold water tank 10, the cold water pipe and the cold water tank 10 are connected to form a closed loop, the first water pumping device 310 works to make the cold water circulate in the closed loop, and the cold water in the cold water pipe can return to the cold water tank 10 for repeated use. Alternatively, the water outlet of the cold water pipe is connected with the outside of the heat exchange assembly, so that the cold water in the cold water pipe after heat exchange is discharged to the outside of the heat exchange assembly and is not reused. Alternatively, the heat exchange assembly further includes a recovery water tank, and the water outlet of the cold water pipe is connected with the recovery water tank, so that the cold water in the cold water pipe after heat exchange flows into the recovery water tank for unified treatment.

[0040] For the specific structure of the heat exchange pipe 20, in some embodiments, as shown in Figure 3 and Figure 4As shown, the outer tube 220 is provided with an outer tube water inlet hole and an outer tube water outlet hole, and the inner tube 210 is provided with an inner tube water inlet hole 211 and an inner tube water outlet hole 212. The outer tube water inlet hole and the inner tube water inlet hole 211 are arranged at the first end of the heat exchange tube, and the outer tube water outlet hole and the inner tube water outlet hole 212 are arranged at the second end of the heat exchange tube 20. In this way, cold water and hot water enter the inner tube 210 and the outer tube 220 of the heat exchange tube 20 from the same end of the heat exchange tube 20, respectively, so that the heat exchange is more uniform, and the reverse entry of cold water and hot water is avoided, which can cause the first cup of water to be cooled too much and the outlet water temperature to be too low, which cannot be drunk by the user.

[0041] For the specific structure of the heat exchange tube 20, in some embodiments, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the heat exchange tube 20 is coiled in a spiral shape, and a middle part forms an accommodation space in which the first water pumping device 310 is arranged. In this way, on the one hand, the coiled arrangement of the heat exchange tube 20 can reduce the occupied space as much as possible on the basis of increasing the length of the heat exchange tube 20, and on the other hand, the middle space of the heat exchange tube 20 after coiling forms an accommodation space capable of installing the first water pumping device 310, which can more reasonably utilize the space and reduce the volume of the heat exchange assembly as much as possible.

[0042] Further, it can be understood that the temperature detection device 340, the first connecting pipe 320, the second connecting pipe 330 and other components of the water drinking device can also be arranged in the accommodation space, which improves the space utilization and reduces the volume of the heat exchange assembly as much as possible.

[0043] For the specific structure of the heat exchange tube 20, in some embodiments, as shown in Figure 3 and Figure 4 , the end of the outer tube 220 is sealingly connected to the outer wall of the inner tube 210, and the outer tube water inlet hole and the outer tube water outlet hole are arranged on the side wall of the outer tube 220.

[0044] In these embodiments, the end of the outer tube 220 is sealingly connected to the outer wall of the inner tube 210, and the outer tube water inlet hole and the outer tube water outlet hole are arranged on the side wall of the outer tube 220, so that the positions of the water inlet and outlet of the inner tube 210 can be distributed staggered with the outer tube water inlet hole and the outer tube water outlet hole, which is beneficial to the connection of the pipeline.

[0045] Further, in some embodiments, the inner tube 210 and the outer tube 220 are both metal tubes, preferably stainless steel tubes. Further, the two ends of the outer tube 220 are weldingly connected to the inner tube 210, and are coiled into a spiral shape, which has good sealing performance, good firmness, is not easy to have water leakage problem, and has simple process and easy realization.

[0046] In some embodiments, the inner layer tube 210 has an inner diameter of 3 mm or greater. In this way, the problem of water being difficult to draw out due to the inner layer tube 210 being too small in diameter and causing too much resistance for the second water pumping device 430 to draw out the hot water can be prevented.

[0047] In one specific embodiment of the present application, as shown in Figures 1 to 4 the outer layer tube 220 is used as a cold water tube and is connected to the cold water tank 10, and the inner layer tube 210 is used as a hot water tube and is connected to the hot water machine of the water dispensing device. In this way, the outer layer tube 220 is set as a cold water tube, which is conducive to the heat absorbed by the cold water being dissipated outward from the outer layer tube 220, thereby improving the heat exchange efficiency. In addition, since the temperature of the drinking water is relatively high, the problem of the temperature inside the heat exchange assembly being too high when the hot water tube is on the outside, thereby affecting the service life of the electrical components, can be avoided.

[0048] For the specific connection of the pipeline of the heat exchange assembly, in some embodiments, as shown in Figures 1 to 4 the heat exchange assembly further includes: a water inlet guide column 221 and a water outlet guide column, which are protrudingly arranged on the side wall of the outer layer tube 220 and are respectively connected to the outer layer tube water inlet hole and the outer layer tube water outlet hole; a first connecting tube 320, a first end of which is connected to the water inlet guide column 221, and a second end of which is connected to the water outlet of the cold water tank 10; a second connecting tube 330, a first end of which is connected to the water outlet guide column, and a second end of which is connected to the water inlet of the cold water tank 10; and a first water pumping device 310 connected to the first connecting tube 320 or the second connecting tube 330, so that the cold water can circulate between the cold water tank 10 and the outer layer tube 220. The arrangement of the water inlet guide column 221 and the water outlet guide column is conducive to the connection between the outer layer tube 220 and the first connecting tube 320 and the second connecting tube 330. Specifically, the water inlet guide column 221 is connected to the first connecting tube 320 through insertion, and the water outlet guide column is connected to the second connecting tube 330 through insertion, so that the connection structure is simple and easy to operate. Further, the first connecting tube 320, the second connecting tube 330, the cold water tube, and the cold water tank 10 are connected to form a closed loop, and the first water pumping device 310 works to make the cold water circulate in the closed loop, so that the cold water in the cold water tube can return to the cold water tank 10 for repeated use. Specifically, the cold water tank 10 is provided with a water outlet and a water inlet, the water outlet is connected to the first connecting tube 320 and the water inlet guide column 221 in sequence, so that the cold water enters the cold water tube through the flow path, and after being heated in the heat exchange tube 20, the cold water returns to the cold water tank 10 through the water outlet guide column, the second connecting tube 330, and the water inlet in sequence, thereby realizing the repeated use of the cold water and avoiding the need to additionally set up a water tank for recycling the cold water after heat exchange, thereby reducing the cost and volume.

[0049] In one specific embodiment, the bottom of the cold water tank 10 is provided with a water outlet and a water inlet, and the capacity of the cold water tank 10 is about 1L, which can avoid waste caused by too large volume. Since the user prefers the water temperature to be between 40℃ and 60℃, the capacity of 1L of cold water at room temperature can cool about 1L of hot water, which is enough for a single user to drink.

[0050] In some embodiments, as shown in Figure 1 and Figure 2 , the heat exchange assembly further comprises a temperature detection device 340 arranged at the water inlet end of the cold water pipe for detecting the temperature of the cold water flowing into the cold water pipe. By detecting the temperature of the cold water flowing into the cold water pipe and adjusting the flow of the first water pump 310, the cooling effect is more controllable, and the outlet water temperature after heat exchange in the hot water pipe approaches the customer specified water temperature, avoiding too low or too high water temperature.

[0051] It can be understood that, due to the large temperature difference between winter and summer, the normal temperature of the cold water used as cold water is also inconsistent, and the cold water in the cold water tank is circulated and cooled, and the temperature of the cold water will change after cooling multiple cups of water. Therefore, it is necessary to adjust the flow of the first water pump 310 to control the cooling effect, so that the outlet water temperature after heat exchange in the hot water pipe approaches the customer specified water temperature, avoiding too low or too high water temperature. When the cold water temperature is too high, the flow of the first water pump 310 is controlled to increase, and when the cold water temperature is too low, the flow of the first water pump 310 is controlled to decrease.

[0052] Further, the first water pump 310 can control the flow by adjusting the input voltage, so as to control the outlet water temperature by adjusting the flow of the cold water, and realize fast outlet of constant temperature hot water.

[0053] Further, in some embodiments, the first water pump 310 is a water pump.

[0054] In some embodiments, specifically, the temperature detection device 340 is arranged on the first connecting pipe 320 for detecting the temperature of the cold water entering the cold water pipe through the first connecting pipe 320, which facilitates the arrangement of the temperature detection device 340.

[0055] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6The second aspect of the utility model provides a kind of water drinking equipment, including water heater 40 and the heat exchange assembly provided in any one of the first aspect embodiment, therefore, the water drinking equipment provided in the embodiment of the utility model has the entire beneficial effect of the heat exchange assembly provided in any one of the first aspect embodiment, not listed here one by one.Further, the hot water pipe of heat exchange assembly is connected with water heater 40, when needing to cool the water in water heater 40, the water in water heater 40 flows into hot water pipe, and the cooling of water in hot water pipe is carried out, realizes the cooling of water in water heater 40, simple structure, cooling speed is fast.

[0056] In some embodiments, as Figure 5 As shown, water heater 40 further includes a water drinking outlet for user to drink water and a hot water supply pipe 420 connecting water heater 40 and the water drinking outlet;Water heater 40 further includes a second water pumping device 430 connected to the hot water supply pipe 420, the second water pumping device 430 can make hot water flow in the hot water supply pipe 420;A solenoid three-way valve 440, the inlet 441 of the solenoid three-way valve 440 is connected with the hot water supply pipe 420, the first outlet 442 of the solenoid three-way valve 440 is connected with the water drinking outlet, the second outlet 443 of the solenoid three-way valve 440 is connected with the hot water pipe, and the water outlet of the hot water pipe is connected with the water drinking outlet.Such arrangement, the arrangement of solenoid three-way valve 440 makes the water at the water drinking outlet can be switched between hot water and warm water, and the water is more diversified, and can better meet the various needs of users.When user needs warm water, the inlet 441 and the second outlet 443 of the solenoid three-way valve 440 are communicated, and the drinking water in the hot water supply pipe 420 is transported to the hot water pipe for cooling, and the cooled water flows out through the water drinking outlet;When user needs hot water, the inlet 441 and the first outlet 442 of the solenoid three-way valve 440 are communicated, and the hot water does not flow through the heat exchange assembly, and directly flows out from the water drinking outlet.

[0057] It can be understood that water heater 40 can be used to boil drinking water, and when warm water is needed, hot water is transported to the heat exchange assembly for cooling to obtain warm water, which can avoid the problem that the warm water generated by instant heating cannot kill bacteria in water, and ensure the health of user's drinking water.

[0058] Further, water heater 40 can further include a water storage tank, and the boiled hot water can be stored in the water storage tank.

[0059] Further, in some embodiments, the second water pumping device 430 is a water pump.

[0060] In some embodiments, in the case that the inner layer pipe 210 is used as a hot water pipe, the water drinking device further comprises a third connecting pipe 450 and a fourth connecting pipe 460, the first end of the third connecting pipe 450 is connected with the second outlet 443 of the electromagnetic three-way valve 440, the second end of the third connecting pipe 450 is connected with the inner layer pipe water inlet hole 211 of the inner layer pipe 210, the first end of the fourth connecting pipe 460 is connected with the inner layer pipe water outlet hole 212 of the inner layer pipe 210, and the second end of the fourth connecting pipe 460 is connected with the water drinking outlet. In this way, the electromagnetic three-way valve 440 and the inner layer pipe water inlet hole 211 of the inner layer pipe 210 are connected through the third connecting pipe 450, and the inner layer pipe water outlet hole 212 and the water drinking outlet are connected through the fourth connecting pipe 460, so that the warm water and the hot water can flow out through one water drinking outlet, which simplifies the structure of the water drinking device and reduces the cost.

[0061] In some embodiments, as shown in Figure 1 and Figure 2 The heat exchange assembly further comprises a shell, and the heat exchange pipe 20, the temperature detection device 340, the first water pumping device 310, the first connecting pipe 320, the second connecting pipe 330 and the like are arranged in the shell. The shell and the cold water tank 10 are arranged side by side on the outer wall of the water heating machine 40, and specifically, the shell and the cold water tank 10 can be arranged one above the other or one left to the right.

[0062] In some embodiments, the heat exchange assembly can be arranged on the rear wall or the left and right side walls or the top wall of the water heating machine 40. Among them, Figure 1 and Figure 2 The heat exchange assembly is arranged on the rear wall of the water heating machine 40 in

[0063] In some embodiments, as an example, the water heating machine 40 can be an electric kettle, a tea bar machine or the like.

[0064] Although the embodiments of the utility model have been described in detail above, those skilled in the art can make various modifications and changes to the embodiments of the utility model without departing from the spirit and scope of the utility model. It should be understood that these modifications and changes will still fall within the spirit and scope of the embodiments of the utility model defined by the claims.

Claims

1. A heat exchange assembly for a drinking water apparatus, the drinking water apparatus comprising a hot water machine for producing hot water, characterized in that, The heat exchange assembly comprises: a cold water tank (10) for containing cold water; a heat exchange pipe (20) comprising an inner pipe (210) and an outer pipe (220) sleeved outside the inner pipe (210), one of the inner pipe (210) and the outer pipe (220) is used as a cold water pipe and is connected with the cold water tank (10), and the other is used as a hot water pipe and is connected with the water heater, so that hot water heated by the water heater flows through the hot water pipe; a first water pumping device (310) connected with the cold water pipe, the first water pumping device (310) can drive the cold water in the cold water tank (10) to flow through the cold water pipe to exchange heat with the hot water flowing through the hot water pipe.

2. The heat exchange assembly according to claim 1, wherein: the outer pipe (220) is provided with an outer pipe water inlet hole and an outer pipe water outlet hole, the inner pipe (210) is provided with an inner pipe water inlet hole (211) and an inner pipe water outlet hole (212), the outer pipe water inlet hole and the inner pipe water inlet hole (211) are arranged at a first end of the heat exchange pipe (20), and the outer pipe water outlet hole and the inner pipe water outlet hole (212) are arranged at a second end of the heat exchange pipe (20).

3. The heat exchange assembly according to claim 1, wherein: the heat exchange pipe (20) is coiled in a spiral shape to form an accommodation space in the middle part, and the first water pumping device (310) is arranged in the accommodation space.

4. The heat exchange assembly according to claim 2, wherein: an end of the outer pipe (220) is sealingly connected with an outer wall of the inner pipe (210), and the outer pipe water inlet hole and the outer pipe water outlet hole are arranged on a side wall of the outer pipe (220).

5. The heat exchange assembly according to claim 4, wherein: the outer pipe (220) is connected with the cold water tank (10) to serve as the cold water pipe, and the inner pipe (210) is connected with the water heater to serve as the hot water pipe.

6. The heat exchange assembly of claim 5, wherein, The heat exchange assembly further comprises: a water inlet guide column (221) and a water outlet guide column, which are protrudingly arranged on a side wall of the outer pipe (220) and connected with the outer pipe water inlet hole and the outer pipe water outlet hole respectively; a first connecting pipe (320) having a first end connected with the water inlet guide column (221) and a second end connected with a water outlet of the cold water tank (10); a second connecting pipe (330) having a first end connected with the water outlet guide column and a second end connected with a water inlet of the cold water tank (10), and the first water pumping device (310) is connected to the first connecting pipe (320) or the second connecting pipe (330), so that the cold water can circulate between the cold water tank (10) and the outer pipe (220).

7. The heat exchange assembly according to any one of claims 1 to 6, characterized in that The heat exchange assembly further comprises: a temperature detection device (340) arranged at a water inlet end of the cold water pipe for detecting the temperature of the cold water flowing into the cold water pipe.

8. The heat exchange assembly according to any one of claims 1 to 6, wherein: The inner diameter of the inner layer pipe (210) is greater than or equal to 3 mm.

9. A drinking water apparatus, characterized in that Comprise: A hot water machine (40) for preparing hot water; And The heat exchange assembly according to any one of claims 1 to 8, wherein the hot water pipe is in communication with the hot water machine (40).

10. The drinking water apparatus of claim 9, wherein, The hot water machine (40) further comprises: A drinking water outlet; A hot water supply pipe (420) in communication with the hot water machine (40) and the drinking water outlet; A second water pumping device (430) connected to the hot water supply pipe (420), wherein the second water pumping device (430) is capable of causing hot water to flow in the hot water supply pipe (420); An electromagnetic three-way valve (440), wherein an inlet (441) of the electromagnetic three-way valve (440) is connected to the hot water supply pipe (420), a first outlet (442) of the electromagnetic three-way valve (440) is connected to the drinking water outlet, and a second outlet (443) of the electromagnetic three-way valve (440) is connected to the hot water pipe, and a water outlet of the hot water pipe is connected to the drinking water outlet.

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