Water heater

Abstract

The utility model relates to the technical field of water heaters, in particular to a water heater which comprises an inner container with a phase change material, the inner container is provided with a heat exchange structure, water flowing through the heat exchange structure can exchange heat with the phase change material through the heat exchange structure, and the water heater further comprises a water passing device. At least part of the water passing device is located in the heat exchange structure, a first water flow channel allowing water to pass through is formed between the outer surface of the wall of the water passing device and the inner surface of the wall of the heat exchange structure, and water in at least part of the first water flow channel can flow out of the water passing device after flowing into the water passing device. And the water passing device is used for placing a functional material. According to the embodiment of the specification, the contact between water and the functional material can be realized at low cost, so that the water quality of the water heater is improved.

Description

Technical Field

[0001] This specification relates to the technical field of water heaters, and particularly to a water heater. Background Art

[0002] Affected by the size of the user's bathroom and the installation environment, the volume of the commonly used inner tank of a water heater generally does not exceed 100L. For example, the capacity of the household water heaters sold on the market is generally 60L. The ability of the water heaters with the above-mentioned capacity to supply hot water is limited. Especially in winter, there are problems such as insufficient hot water volume or long heating time when users take a bath. In addition to ordinary electric heating storage water heaters, there are also some phase change water heaters. The phase change water heaters first make the phase change material absorb the heat of the heat source for energy storage; when supplying water, the phase change material releases the stored energy to heat the cold water flowing in the heat exchange tube.

[0003] How to improve the water use quality in a low-cost way is an urgent problem to be solved. Summary of the Utility Model

[0004] To solve the problems in the prior art, an embodiment of this specification provides a water heater. By internally arranging a water passing device in the heat exchange structure of the inner tank, when a functional material is arranged in the water passing device, the water in the water heater can contact the functional material in the water passing device, so that the water use quality of the water heater can be improved at low cost.

[0005] An embodiment of this specification provides a water heater, and the water heater includes an inner tank with a phase change material.

[0006] The inner tank has a heat exchange structure, and the water flowing through the heat exchange structure can exchange heat with the phase change material through the heat exchange structure.

[0007] The water heater further includes a water passing device. At least part of the water passing device is located in the heat exchange structure. A first water flow channel for water supply is formed between the outer surface of the wall of the water passing device and the inner surface of the wall of the heat exchange structure. At least part of the water in the first water flow channel can flow out of the water passing device after flowing into the water passing device. The water passing device is used for placing functional materials.

[0008] As a further aspect of this specification, for the water entering the first water flow channel, a part of it continues to flow along the first water flow channel, and the other part flows out of the water passing device after flowing into the water passing device and contacting the functional material.

[0009] As another further aspect of this specification, the functional material includes a scale inhibitor material and / or a bactericidal material and / or a purification material.

[0010] As another further aspect of this specification, the scale inhibitor material includes scale inhibitor particles.

[0011] As another further aspect of this specification, the heat exchange structure has a water inlet section, a water outlet section, and a communication section located between the water inlet section and the water outlet section. At least part of the water passing device is arranged in the water inlet section of the heat exchange structure. The heat exchange structure includes a water inlet and a water outlet. The water inlet section is close to or includes the water inlet of the heat exchange structure, and the water outlet section is close to or includes the outlet of the heat exchange structure.

[0012] As another further aspect of this specification, the diameter of the water inlet section corresponding to the water passing device is larger than that of the water outlet section and / or the communication section.

[0013] As another further aspect of this specification, at least part of the water passing device is arranged at the water inlet of the water inlet section of the heat exchange structure and extends into the water inlet section.

[0014] As another further aspect of this specification, the inner container has a joint, the joint has a water passing device interface, the water passing device interface has a first end and a second end. The first end of the water passing device interface is connected to the heat exchange structure, the second end of the water passing device interface is connected to one end of the water passing device, and the other end of the water passing device passes through the second end of the water passing device interface and extends into the heat exchange structure.

[0015] As another further aspect of this specification, the second end of the water passing device interface is detachably and sealingly connected to one end of the water passing device.

[0016] As another further aspect of this specification, the joint also has a water inlet, and a second water flow channel is connected between the water inlet and the water passing device interface. The second water flow channel is connected to the first water flow channel, and the water entering from the water inlet flows into the first water flow channel through the second water flow channel.

[0017] As another further aspect of this specification, at least part of the water passing device is arranged in the water passing device interface for treating the water flowing into the water passing device interface.

[0018] As another further aspect of this specification, the joint further includes a water outlet, the heat exchange structure has a water inlet section and a water outlet section, and the water outlet is connected to the water outlet section of the heat exchange structure.

[0019] As another further aspect of this specification, the water inlet, the water passing device interface, and the water outlet are integrally formed on the joint.

[0020] As another further aspect of this specification, the water heater further includes a housing, a water tank, and a valve body. The inner tank, the water tank, and the valve body are all located within the housing. The valve body is connected to the water inlet and the water outlet on the connector, and / or the valve body is connected to the water inlet and the water outlet on the water tank.

[0021] In the length direction of the water heater, the size of the water tank is larger than that of the inner tank to form a receiving space within the housing for accommodating the valve body.

[0022] As another further aspect of this specification, the water passing device has a functional material. The water passing device has a water inlet and a water outlet. The water inlet is used to allow the water in the first water flow channel to flow into the water passing device and come into contact with the functional material, and the water outlet is used to allow the water treated by the functional material to flow out of the water passing device.

[0023] As another further aspect of this specification, the inner surface of the wall of the water passing device defines a receiving cavity for accommodating the functional material, and the water inlet and / or the water outlet are provided on the outer surface of the wall.

[0024] As another further aspect of this specification, the wall of the water passing device is a mesh structure, and the openings of part of the mesh structure are the water inlets, and the openings of part of the mesh structure are the water outlets.

[0025] As another further aspect of this specification, the water heater further includes a guiding member for guiding the water in the first water flow channel to the water inlet and / or the functional material.

[0026] As another further aspect of this specification, the guiding member is located within the first water flow channel and is provided outside the water passing device.

[0027] As another further aspect of this specification, the guiding member is sleeved outside the water passing device.

[0028] As another further aspect of this specification, the guiding member is a spring.

[0029] As another further aspect of this specification, one end of the water passing device near the water outlet has a limiting member for limiting the guiding member.

[0030] As a further aspect of this specification, the limiting member includes a blocking portion and a flanging located around the blocking portion. The flanging is connected to the blocking portion or the flanging is connected to the wall of the water passing device. The blocking portion is used to block the functional material in the water passing device, and the flanging is used to limit the guiding member.

[0031] As a further aspect of this specification, the guiding member is formed by the inner surface of the wall of the heat exchange structure corresponding to the water passing device, or the guiding member is formed by the outer surface of the wall of the water passing device.

[0032] As a further aspect of this specification, the guiding member includes a flow disturbing protrusion or a flow disturbing groove.

[0033] As a further aspect of this specification, one end of the water passing device close to the water outlet has a limiting member, and the limiting member abuts against the inner surface of the wall of the heat exchange structure to limit the water passing device.

[0034] As a further aspect of this specification, the limiting member includes a blocking portion and a flanging located around the blocking portion. The flanging is connected to the blocking portion or the flanging is connected to the wall of the water passing device. The blocking portion is used to block the functional material in the water passing device, and the flanging abuts against the inner surface of the wall of the heat exchange structure.

[0035] As a further aspect of this specification, one end of the water passing device close to the water outlet has a blocking portion, and the blocking portion is used to block the functional material in the water passing device.

[0036] In the prior art, adding dedicated pipelines and water treatment components in a water heater to treat the water used by the water heater has a high cost and a complex structure. Using the embodiments of this specification, by inserting a water passing device into the heat exchange structure of the water heater, when the water passing device is provided with a functional material, the water passing device can enable the water in the water heater to fully contact the functional material inside the water passing device, thereby improving the water quality of the water heater at low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this specification. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1aThe figure shows a schematic structural diagram of a water heater with a water passing device according to an embodiment of the present specification;

[0039] Figure 1b The figure shows a partially enlarged schematic diagram of the interface of the water passing device according to an embodiment of the present specification;

[0040] Figure 2 The figure shows a schematic structural diagram of an inner tank joint according to an embodiment of the present specification;

[0041] Figure 3a The figure shows a schematic structural diagram of an inner tank joint according to an embodiment of the present specification;

[0042] Figure 3b The figure shows a sectional view of an inner tank joint according to an embodiment of the present specification;

[0043] Figure 4 The figure shows a schematic structural diagram of a water heater according to an embodiment of the present specification;

[0044] Figure 5a The figure shows a schematic structural diagram of the cross-section of a water passing device according to an embodiment of the present specification;

[0045] Figure 5b The figure shows a partially enlarged schematic structural diagram of the cross-section of a water passing device according to an embodiment of the present specification;

[0046] Figure 6a The figure shows a specific structural diagram of a water passing device according to an embodiment of the present specification;

[0047] Figure 6b The figure shows another specific structural diagram of a water passing device according to an embodiment of the present specification.

[0048]

Explanation of Reference Numerals

[0049] 1011, phase change material; 1012, heat exchange structure; 101, inner tank; 102, water passing device; 103, first water flow channel; 104, inlet section; 105, water inlet; 106, water passing device interface; 1061, first end; 1062, second end;

[0050] 201, inner tank; 202, water passing device; 203, heat exchange structure; 204, joint; 2041, water inlet; 2042, water passing device interface; 2043, water outlet;

[0051] 301, inner tank; 3012, heat exchange structure; 302, heating device; 303, inner tank joint; 3031, water passing device interface; 3032, water inlet; 3033, second water flow channel; 3034, water outlet; 304, water passing device;

[0052] 401, housing; 402, water tank; 403, valve body; 404, inner tank; 4041, joint; 405, accommodation space;

[0053] 501, Functional material; 502, Water inlet; 503, Water outlet; 504, Accommodating cavity; 505, First water flow channel; 506, Second water flow channel;

[0054] 601, Functional material; 602, Water inlet; 603, Water outlet; 604, Accommodating cavity; 605, Deflector; 606, Limiting member; 6061, Blocking portion; 6062, Flange; 607, First water flow channel. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0056] The water heater in the embodiments of this specification includes a heating device and an inner tank with a phase change material. The heating device is used to generate heat and directly or indirectly transfer the heat to the phase change material to store energy for the phase change material. Among them, the heating device can be built into the inner tank to directly transfer heat to the phase change material to complete energy storage, or the heating device can also be used to heat water, and then use the heated water to store energy for the phase change material in the inner tank; it can also heat water outside the inner tank and use the heated water to store energy for the phase change material in the inner tank. The control method of the heating device during energy storage is executed by devices such as the controller, processor, or single-chip microcomputer of the water heater. For example Figure 1a Shown is a schematic structural diagram of a water heater with a water passing device in the embodiments of this specification. Figure 1b Shown is a partially enlarged schematic diagram of the water passing device interface in the embodiments of this specification. In Figure 1a and Figure 1b it includes an inner tank 101 with a phase change material 1011 and a heat exchange structure 1012, a water passing device 102, a first water flow channel 103, a water inlet section 104, a water inlet 105, a water passing device interface 106, a first end 1061 of the water passing device interface, and a second end 1062 of the water passing device interface.

[0057] Among them, the inner tank 101 has a heat exchange structure 1012. The water flowing through the heat exchange structure 1012 can exchange heat with the phase change material 1011 through the heat exchange structure 1012. The water heater further includes a water passing device 102. At least a part of the water passing device 102 is located in the heat exchange structure 1012. A first water flow channel 103 for water to pass through is formed between the outer surface of the wall of the water passing device 102 and the inner surface of the wall of the heat exchange structure. At least a part of the water in the first water flow channel 103 can flow out of the water passing device 102 after flowing into the water passing device 102. The water passing device 102 is used for functional materials. The functional materials can be pre-placed in the water passing device 102, or the user can place the functional materials in the water passing device 102 through a detachable connection structure between the water passing device and the heat exchange structure, so as to realize the user's selection and replacement of the functional materials and improve the user experience.

[0058] As an aspect of the embodiment of this specification, for the water entering the first water flow channel 103, a part of it continues to flow along the first water flow channel 103, and the other part flows out of the water passing device 102 after flowing into the water passing device 102 and contacting the functional materials therein. Among them, the functional materials include scale inhibitor materials and / or bactericidal materials and / or purification materials. The scale inhibitor materials include scale inhibitor particles. The characteristics of the functional materials are used to treat the water used by the water heater. For example, the scale formation phenomenon of the water used by the water heater in the heat exchange structure can be reduced through the scale inhibitor materials, the bacterial content in the water used by the water heater can be reduced through the bactericidal materials, other impurities in the water used by the water heater can be reduced through the purification materials, and the water quality of the water used by the water heater can be improved through the functional materials in the water passing device.

[0059] According to Figure 1a As can be seen from the figure, the heat exchange structure 1012 includes an inlet section 104, an outlet section, and a communication section located between the inlet section and the outlet section. Among them, the inlet section 104 is a section of the structure for injecting water into the heat exchange structure 1012. The water inlet 105 is the inlet of the inlet section 104. The outlet section is a section of the structure for water to flow out of the heat exchange structure 1012. The water outlet is the outlet of the outlet section. As can be seen from the figure, the heat exchange structure 1012 is composed of connected heat exchange tubes. The heat exchange structure between the inlet section and the outlet section is the communication section. In other embodiments, the heat exchange structure can also be composed of other connected structures. At least a part of the water passing device 102 is arranged in the inlet section 104 of the heat exchange structure 1012. The inlet section is close to or includes the water inlet of the heat exchange structure. The outlet section is close to or includes the outlet of the heat exchange structure. At least a part of the water passing device 102 is arranged at the water inlet 105 of the inlet section of the heat exchange structure 1012 and extends into the inlet section 104.

[0060] According to Figure 1aAs can be seen from the figure, the diameter of the water inlet section 104 corresponding to the water passing device 102 is larger than that of the water outlet section and / or the communication section. Thus, the heat exchange structure 1012 of the water inlet section 104 with a slightly larger diameter can be used to accommodate the water passing device 102, saving the internal space of the inner tank 101, enabling more phase change material to be accommodated and more heat to be stored. Moreover, the pipeline design of the water heater is simpler, and the manufacturing and material costs are lower.

[0061] As Figure 2 shown in the structural schematic diagram of the inner tank joint in the embodiment of this specification. Combining Figure 1b and Figure 2 , in Figure 2 it includes an inner tank 201, a water passing device 202, a heat exchange structure 203, a joint 204, a water inlet 2041, a water passing device interface 2042, and a water outlet 2043. The inner tank 201 has a joint 204, the joint 204 has a water passing device interface 2042, and the water passing device interface 2042 ( Figure 1b the water passing device interface 106 in

[0062] ) has a first end 1061 and a second end 1062. The first end 1061 of the water passing device interface 2042 (106) is connected to the heat exchange structure 203, the second end 1062 of the water passing device interface 2042 (106) is connected to one end of the water passing device 202, and the other end of the water passing device interface 2042 (106) near the water outlet extends into the heat exchange structure 203 through the first end 1061 of the water passing device interface 2042 (106). Figure 1b It can be exemplarily seen that the second end 1062 of the water passing device interface 106 is detachably and sealingly connected to one end of the water passing device. Through the detachable and sealing connection between the water passing device and the water passing device interface 106, users can replace the functional materials in the water passing device according to needs, or when there are no pre-set functional materials in the water passing device, users can add functional materials to the water passing device. As Figure 3a shown in the structural schematic diagram of the inner tank joint in the embodiment of this specification, Figure 3b shown in the sectional view of the inner tank joint in the embodiment of this specification. In Figure 3a and Figure 3b it includes an inner tank 301, a heat exchange structure 3012, a heating device 302, an inner tank joint 303, a water passing device interface 3031, a water inlet 3032, a second water flow channel 3033, a water outlet 3034, and a water passing device 304.

[0063] Among them, the water inlet 3032 is connected to the water passing device 304 through a second water flow channel 3033, and the second water flow channel 3033 is connected to the first water flow channel. The water entering from the water inlet 3032 flows into the first water flow channel through the second water flow channel 3033. At least a part of the water passing device 304 is arranged in the water passing device interface 3031. The water flowing in through the water inlet 3032 flows into the first water flow channel through the second water flow channel 3033, and the water passing device 304 processes the water flowing into the water passing device 304. Through the water passing device interface 3031, the water passing device 304 can be detachably inserted into the heat exchange structure 3012, so that the water passing device 304 and / or the functional material in the water passing device 304 can be replaced.

[0064] The heat exchange structure 3012 has a water inlet section and a water outlet section, and the water outlet 3034 is connected to the water outlet section of the heat exchange structure 3012.

[0065] In some embodiments, the water inlet 3032 and the water passing device interface 3031 can also be combined into one interface, that is to say, the water flowing into the heat exchange structure 3012 can directly flow into the first water flow channel between the water passing device 304 and the heat exchange structure 3012.

[0066] In some embodiments, the heat exchange structure 3012 can be a series of heat exchange tubes. In the energy release stage, the water with a lower temperature flows into the second water flow channel 3033 through the water inlet group 3032, the water enters the first water flow channel through the second water flow channel 3033, at least part of the water in the first water flow channel enters the water passing device 304 for treatment, and then flows into the heat exchange tubes. The water transfers heat with the phase change material in at least part of the heat exchange tubes inserted with the phase change material, absorbs the heat of the phase change material, so that the temperature of the water rises. Then the water with the increased temperature flows out of the heat exchange tubes through the water outlet 3034 for users to use. The water inlet 3032 and the water passing device interface 3031 of the heat exchange structure and the water outlet 3034 of the heat exchange structure can be integrally formed to form an inner tank joint 303. By integrally forming the inner tank joint 303, the manufacturing cost of the water heater can be reduced and the manufacturing efficiency can be improved.

[0067] As Figure 4 shown is a schematic structural diagram of a water heater according to an embodiment of the present specification. In this figure, it includes a housing 401, a water tank 402, a valve body 403, an inner tank 404, a joint 4041, and a receiving space 405; the water tank 402 and the valve body 403 are both located in the housing 401, and the valve body 403 is connected to the water inlet and the water outlet on the joint 4041 of the inner tank 404, and / or the valve body 403 is connected to the water inlet on the water tank 402 and the water outlet on the water tank.

[0068] In the length direction (L) of the water heater, the size of the water tank is larger than that of the inner tank, so as to form an accommodation space 405 for accommodating the valve body 403 in the housing 401.

[0069] In other embodiments, the valve body 403 and other devices such as other pipelines and connectors 4041 can be accommodated in the accommodation space 405. In possible embodiments, it can also be used to accommodate a heating device, or a working circuit of the heating device, etc., and can also be used to accommodate components such as a controller for controlling the operation of the heating device. This can reduce the volume of the water heater, and since the components of the water heater are concentrated in the accommodation space, the maintenance cost can be reduced.

[0070] As Figure 5a shown is a schematic structural diagram of the cross-section of the water passing device according to an embodiment of the present specification. Figure 5b Shown is a partially enlarged schematic structural diagram of the cross-section of the water passing device according to an embodiment of the present specification. The specific structure of the water passing device is described in this figure. The water passing device includes a functional material 501, a water inlet 502, a water outlet 503, an accommodation cavity 504, a first water flow channel 505, and a second water flow channel 506. Among them, the water passing device can be, for example, a cylinder and extends into the heat exchange structure. The inner surface of the wall of the heat exchange structure and the outer surface of the wall of the water passing device form the first water flow channel 505. The interior of the water passing device has an accommodation cavity 504 for arranging the functional material 501. The functional material 501 can be scale inhibitor particles or other functional materials, and the water is filtered by the soluble functional material 501, or the functional material 501 can also be a physical filtering component, and the water is filtered by means of a filter membrane with a small aperture, a filter screen, a filter cotton, etc. Or the functional material can also be a material for realizing functions such as sterilization, etc., which is not limited herein; the water inlet 502 and / or the water outlet 503 are arranged on the outer surface of the wall of the water passing device. The water inlet 502 and / or the water outlet 503 can be a mesh structure. The openings of part of the mesh structure form the water inlet 502, and the openings of part of the mesh structure form the water outlet 503. Water flows into the first water flow channel 505 through the second water flow channel 506. The water inlet 502 introduces the water in the first water flow channel 505 into the accommodation cavity 504 of the water passing device, so that the water contacts the functional material 501. The water outlet 503 leads out the water that has contacted the functional material 501 from the water passing device and enters the heat exchange structure.

[0071] As Figure 6aThe following is the specific structural diagram of the water passing device according to the embodiment of the present specification. In this figure, it includes a functional material 601 (represented by a gray circle in the figure), a water inlet 602 (represented by a hollow circle in the figure), a water outlet 603 (represented by a hollow circle in the figure), a receiving cavity 604, a flow guiding member 605, a limiting member 606, a blocking portion 6061, a flanging 6062, and a first water flow channel 607. Water flows in the first water flow channel 607 from left to right in the direction of the dotted arrow. The water inlet 602 can be located at the front section of the water passing device, and the water outlet 603 can be located at the rear section of the water passing device. The water inlet 602 and the water outlet 603 can also be located in other parts of the water passing device.

[0072] In this embodiment, the flow guiding member 605 can be a spring, which is located in the first water flow channel 607 and sleeved on the outer side of the water passing device. A spring with a simple structure and low cost can play a role in guiding the water flow direction, and the manufacturing cost is also relatively low. The spring on the outer side of the water passing device can introduce the water flowing through the first water flow channel 607 into the water inlet 602 of the water passing device and enter the receiving cavity 604. The water inlet 602 can be a through hole penetrating the side wall of the water passing device. Under the guidance of the spring, water passes through the water inlet 602 and enters the receiving cavity 604, contacts the functional material 601 inside the receiving cavity 604, and flows out of the water passing device through the water outlet 603. The limiting member 606 includes a blocking portion 6061 and a flanging 6062 located around the blocking portion 6061. The flanging 6062 is connected to the blocking portion 6061 or the flanging 6062 is connected to the inner surface of the wall of the water passing device. The blocking portion 6061 is used to block the functional material 601 in the water passing device, and the flanging 6062 is used to limit the flow guiding member 605.

[0073] The limiting member 606 of the water passing device abuts against the inner surface of the wall of the heat exchange structure to limit the water passing device. The flanging 6062 is connected to the blocking portion 6061 or the flanging 6062 is connected to the outer surface of the wall of the water passing device. The blocking portion 6061 is used to block the functional material 601 in the water passing device, and the flanging 6062 abuts against the inner surface of the wall of the heat exchange structure. Through the blocking portion 6061 of the limiting member 606, the functional material 601 can be prevented from flowing out of the water passing device along with the flowing water. The flanging 6062 of the limiting member 606 can be used to stabilize the water passing device in the heat exchange structure, or can also be used to limit the flow guiding member 605 to prevent the flow guiding member 605 from detaching from the outer wall surface of the water passing device.

[0074] In other embodiments, the limiting member 606 can only include the blocking portion 6061 and does not include the flanging 6062.

[0075] Such as Figure 6bShown is another specific structural diagram of the water passing device according to the embodiment of this specification, in which different forms of guide members are described, such as Figure 6b As shown, the guide member 605 is formed by the inner surface of the wall of the heat exchange structure corresponding to the water flow device. The inner surface of the wall of the heat exchange structure can be wavy, or a flow-disturbing protrusion or a flow-disturbing groove, so that the water flowing through the first water flow channel 607 can flow toward the water flow device accommodating chamber 604.

[0076] In other embodiments, the guide member can also be a guide plate on the outside of the accommodating cavity, through which the water flowing into the first water flow channel is guided to the water inlet of the accommodating cavity and thus enters the interior of the accommodating cavity, and flows out of the accommodating cavity through the water outlet and merges into the heat exchange structure. There can be multiple guide plates, and the angle between the guide plate and the outer surface of the accommodating cavity wall toward the water flow direction is an acute angle.

[0077] In other embodiments, the flow guide may also be a plurality of water inlets on the side wall of the water flow device, and the plurality of water inlets are inclined to penetrate the side wall of the water flow device, with the inclined direction facing the direction of water flow.

[0078] The guide members with different structures can all guide the water in the first water flow channel 607, introduce the water into the accommodating cavity 604, and contact the water with the functional material 601 in the accommodating cavity 604, thereby processing the water.

[0079] Through the water flow device in the embodiment of the present invention, the water flow device can be built into the heat exchange structure, reducing the space occupied by the inner tank phase change material, and the design and manufacturing costs are low; since the water used by the water heater is diverted, the water used by the water heater can directly contact the functional material, so the quality of the water used by the water heater is significantly improved; through the detachable water flow device, the user can choose and replace the functional material, thereby improving the user experience.

[0080] It should also be understood that in the embodiments of this specification, the term "and / or" is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this specification generally indicates that the associated objects are in an "or" relationship.

[0081] In the several embodiments provided in this specification, it should be understood that the disclosed systems and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units described is merely a logical functional division. In actual implementation, other division methods may be used, such as combining or integrating multiple units or components into another system, or omitting or not implementing certain features.

[0082] In this specification, specific embodiments are used to elaborate on the principles and implementation manners of this specification. The description of the above embodiments is only for helping to understand the method and its core idea of this specification. At the same time, for those of ordinary skill in the art, according to the idea of this specification, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this specification.

Claims

1. A water heater, characterized in that the water heater includes an inner tank having a phase change material, the inner tank has a heat exchange structure, and water flowing through the heat exchange structure can exchange heat with the phase change material through the heat exchange structure, the water heater further includes a water passing device, at least part of the water passing device is located in the heat exchange structure, a first water flow channel for water to pass through is formed between the outer surface of the wall of the water passing device and the inner surface of the wall of the heat exchange structure, at least part of the water in the first water flow channel can flow out of the water passing device after flowing into the water passing device, and the water passing device is used for placing functional materials.

2. The water heater according to claim 1, characterized in that, For the water entering the first water flow channel, a part of it continues to flow along the first water flow channel, and the other part flows out of the water passing device after flowing into the water passing device and contacting the functional materials.

3. The water heater according to claim 1, characterized in that, The functional materials include scale inhibitor materials and / or bactericidal materials and / or purification materials.

4. The water heater according to claim 3, characterized in that the scale inhibitor material includes scale inhibitor particles.

5. The water heater according to claim 1, characterized in that the heat exchange structure has an inlet section, an outlet section and a connecting section located between the inlet section and the outlet section, at least part of the water passing device is arranged in the inlet section of the heat exchange structure, the heat exchange structure includes a water inlet and a water outlet, the inlet section is close to or includes the water inlet of the heat exchange structure, and the outlet section is close to or includes the outlet of the heat exchange structure.

6. The water heater according to claim 5, wherein The diameter of the inlet section corresponding to the water passing device is larger than that of the outlet section and / or the connecting section.

7. The water heater according to claim 1, characterized in that at least part of the water passing device is arranged at the water inlet of the inlet section of the heat exchange structure and extends into the inlet section.

8. The water heater according to claim 1, characterized in that the inner tank has a joint, the joint has a water passing device interface, the water passing device interface has a first end and a second end, the first end of the water passing device interface is connected to the heat exchange structure, the second end of the water passing device interface is connected to one end of the water passing device, and the other end of the water passing device passes through the first end of the water passing device interface and extends into the heat exchange structure.

9. The water heater according to claim 8, characterized in that the second end of the water passing device interface is detachably and sealingly connected to one end of the water passing device.

10. The water heater according to claim 8, characterized in that the joint further has a water inlet, the water inlet is connected to the water passing device interface through a second water flow channel, the second water flow channel is communicated with the first water flow channel, and the water entering from the water inlet flows into the first water flow channel through the second water flow channel.

11. The water heater according to claim 10, characterized in that at least part of the water passing device is arranged in the water passing device interface for treating the water flowing into the water passing device interface.

12. The water heater according to claim 11, characterized in that The joint further includes a water outlet, the heat exchange structure has a water inlet section and a water outlet section, and the water outlet is connected to the water outlet section of the heat exchange structure.

13. The water heater according to claim 12, wherein The water inlet, the water passing device interface and the water outlet are integrally formed on the joint.

14. The water heater according to claim 12, wherein The water heater further includes a housing, a water tank, and a valve body. The inner tank, the water tank and the valve body are all located in the housing. The valve body is connected to the water inlet and the water outlet on the joint, and / or the valve body is connected to the water inlet and the water outlet on the water tank; In the length direction of the water heater, the size of the water tank is larger than that of the inner tank to form a receiving space in the housing for receiving the valve body.

15. The water heater according to claim 1, wherein The water passing device has a functional material. The water passing device has a water inlet and a water outlet. The water inlet is used to allow the water in the first water flow channel to flow into the water passing device and contact the functional material, and the water outlet is used to allow the water treated by the functional material to flow out of the water passing device.

16. The water heater according to claim 15, wherein The inner surface of the wall of the water passing device defines a receiving cavity for receiving the functional material, and the water inlet and / or the water outlet are provided on the outer surface of the wall.

17. The water heater according to claim 15, characterized in that, The wall of the water passing device is a mesh structure, and the openings of part of the mesh structure are the water inlets, and the openings of part of the mesh structure are the water outlets.

18. The water heater according to claim 15, wherein The water heater further includes a guide member for guiding the water in the first water flow channel to the water inlet and / or the functional material.

19. The water heater according to claim 18, wherein The guide member is located in the first water flow channel and is provided outside the water passing device.

20. The water heater according to claim 19, wherein The guide member is sleeved outside the water passing device.

21. The water heater according to claim 20, wherein, The guide member is a spring.

22. The water heater according to claim 20, wherein One end of the water passing device close to the water outlet has a limiting member for limiting the guide member.

23. The water heater according to claim 22, wherein The limiting member includes a blocking portion and a flange around the blocking portion. The flange is connected to the blocking portion or the flange is connected to the wall of the water passing device. The blocking portion is used to block the functional material in the water passing device, and the flange is used to limit the guide member.

24. The water heater according to claim 18, wherein The guide member is formed by the inner surface of the wall of the heat exchange structure corresponding to the water passing device, or the guide member is formed by the outer surface of the wall of the water passing device.

25. The water heater according to claim 24, wherein The guide member includes a flow disturbing protrusion or a flow disturbing groove.

26. The water heater according to claim 18 or 22, wherein one end of the water passing device near the water outlet is provided with a limiting member, and the limiting member abuts against the inner surface of the wall of the heat exchange structure to limit the water passing device.

27. The water heater according to claim 26, wherein the limiting member includes a blocking portion and a flange located around the blocking portion, the flange is connected to the blocking portion or the flange is connected to the wall of the water passing device, the blocking portion is used for blocking the functional material in the water passing device, and the flange abuts against the inner surface of the wall of the heat exchange structure.

28. The water heater according to claim 16, wherein one end of the water passing device near the water outlet is provided with a blocking portion, and the blocking portion is used for blocking the functional material in the water passing device.

Images