Water tank of water heater and water heater

Abstract

The utility model relates to the technical field of water heaters, and provides a water tank of a water heater and the water heater. The box body is provided with a liquid storage space and comprises a side coaming; the waterway assembly is mounted on the side coaming and comprises a water inlet pipe and a water outlet pipe; the side coaming is provided with a sewage discharge channel, and the sewage discharge channel is communicated with the liquid storage space and the outside and used for discharging sewage in the liquid storage space. Firstly, the water way assembly is connected to the side coaming, the space below the water tank (namely, the space of the user side) is not occupied, on this basis, the sewage draining channel is arranged on the side of the water tank, then it can be guaranteed that all operations (installation and maintenance) are conducted on the side of the water heater, the installation operation is convenient, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a water tank of a water heater and a water heater. Background Art

[0002] In the related art, the water heater is usually provided with a drain pipe for discharging the sewage in the inner tank. The drain pipe needs to be installed separately in the inner tank, and usually, in order to ensure that the sewage in the inner tank is drained cleanly, the inlet end of the drain pipe needs to be set below the inner tank. This is not only not conducive to installation and maintenance, but the part of the drain pipe protruding from the inner tank also occupies the space on the user side, affecting the user experience. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a water tank of a water heater, which avoids the need for a separate installation of a sewage pipe by installing a sewage channel on a side panel, thereby improving the installation efficiency of the water tank, and the sewage channel is located on the side and does not occupy the space under the water tank, thereby improving the aesthetics and user experience.

[0004] The utility model also provides a water heater.

[0005] The water tank of the water heater according to the first embodiment of the utility model comprises:

[0006] A box body is provided with a liquid storage space, and the box body includes a side panel;

[0007] A water channel assembly is installed on the side panel, and the water channel assembly includes a water inlet pipe and a water outlet pipe;

[0008] The side panel is provided with a sewage discharge channel, which connects the liquid storage space with the outside and is used to discharge sewage in the liquid storage space.

[0009] According to the water tank of the water heater of the embodiment of the utility model, the water channel assembly is first connected to the side panel without occupying the space below the water tank (that is, the space on the user side), and on this basis, the sewage channel is arranged on the side of the water tank, thereby ensuring that all operations (installation, maintenance) are carried out on the side of the water heater, which is not only convenient for installation work, but also easy for maintenance.

[0010] According to one embodiment of the utility model, the sewage channel comprises:

[0011] An elbow is installed on a side of the side panel facing the liquid storage space, with an opening of the elbow facing downward;

[0012] An external pipe is installed on a side of the side panel facing away from the liquid storage space;

[0013] The elbow is fluidically connected to the external pipe to form a siphon passage in the elbow and the external pipe.

[0014] According to one embodiment of the utility model, the waterway assembly includes a sewage pipe;

[0015] The sewage pipe and the external pipe are detachably connected, and / or,

[0016] A sewage plug is detachably mounted on one end of the sewage pipe away from the external pipe.

[0017] According to an embodiment of the utility model, the sewage pipe and the external pipe are connected via a quick-release structure, the sewage plug is provided at the end of the sewage pipe, and the sewage pipe and the water inlet pipe are fixedly connected via supporting feet.

[0018] According to one embodiment of the utility model, a heat exchanger is provided in the water tank, and the heat exchanger is used to exchange heat between water used by the user and water in the liquid storage space; the inlet end of the heat exchanger is connected to the water inlet pipe, and the outlet end of the heat exchanger is connected to the water outlet pipe;

[0019] The side panel is integrally formed with a water replenishment channel, and the water replenishment channel is connected to the sewage discharge channel.

[0020] According to an embodiment of the utility model, the side panel includes an inner panel and an outer panel assembled with each other, a sewage cavity and the water replenishment channel are formed between the inner panel and the outer panel, and the sewage channel is connected to the sewage cavity.

[0021] According to an embodiment of the utility model, the inner enclosure plate is recessed away from the outer enclosure plate to form the sewage discharge cavity and the water replenishment channel between the inner enclosure plate and the outer enclosure plate.

[0022] According to one embodiment of the utility model, the waterway assembly includes a control valve, and the control valve includes:

[0023] A cold water inlet, connected to the water inlet pipe;

[0024] A hot water inlet, connected to the outlet of the heat exchanger;

[0025] A first water outlet, connected to the water outlet pipe, to provide water for use to the user;

[0026] The second water outlet is connected to the water replenishment channel to supply water to the liquid storage space.

[0027] According to an embodiment of the utility model, the side panel is integrally formed with an exhaust passage, and the exhaust passage connects the space above the liquid level in the liquid storage space with the outside world.

[0028] The water heater according to the second aspect of the present invention comprises the water tank of the water heater as described above.

[0029] The beneficial effects of the water heater according to the embodiment of the utility model are the same as the beneficial effects of the water tank of the water heater in the embodiment of the first aspect of the utility model, which will not be repeated here.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a structural schematic diagram of the water heater provided by the utility model;

[0033] Figure 2 It is a right side view of the water heater provided by the utility model;

[0034] Figure 3 yes Figure 2 The middle section line AA is the section view;

[0035] Figure 4 yes Figure 3 A magnified view of the part B in the middle;

[0036] Figure 5 yes Figure 3 Enlarged view of part C in the middle.

[0037] Reference numerals:

[0038] 10. Box body; 11. Liquid storage space; 12. Side panel; 121. Exhaust channel; 122. Inner panel; 123. Outer panel; 14. Drain channel; 141. Elbow; 142. External pipe; 150. Drain chamber; 160. Water supply channel;

[0039] 20. Heat exchanger;

[0040] 30. Water circuit assembly; 31. Water inlet pipe; 32. Water outlet pipe; 33. Drain pipe; 331. Drain plug; 34. Control valve;

[0041] 60. Support leg. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0043] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0045] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Combination Figures 1 to 3 and Figure 5 As shown, the water tank of the water heater according to the first embodiment of the utility model includes a tank body 10 and a water channel assembly 30; the tank body 10 is provided with a liquid storage space 11, and the tank body 10 includes a side panel 12; the water channel assembly 30 is installed on the side panel 12, and the water channel assembly 30 includes a water inlet pipe 31 and a water outlet pipe 32; the side panel 12 is provided with a sewage discharge channel 14, and the sewage discharge channel 14 connects the liquid storage space 11 with the outside world, and is used to discharge the sewage in the liquid storage space 11.

[0048] According to the water tank of the water heater of the embodiment of the utility model, external water source flows into the tank body 10 from the water inlet pipe 31 for heating (heating in the liquid storage space 11) or heat exchange (passing into the heat exchanger 20 for heat exchange with the liquid in the liquid storage space 11) to form high-temperature water, which is discharged from the water outlet pipe 32 for user use. Some impurities contained in the external water source (when the liquid in the liquid storage space 11 uses the external water source) or the detachment of the surface of the components installed in the liquid storage space 11 (such as the heating component, the valve body, etc.) will cause pollution to the liquid in the liquid storage space 11. By setting the sewage channel 14, when it is necessary to remove the pollutants in the liquid storage space 11, the water inlet pipe 31 and the water outlet pipe 32 are closed, and the sewage channel 14 is opened, and the water in the liquid storage space 11 carries the impurities and flows out from the sewage channel 14 to the outside, so that the inside of the liquid storage space 11 is cleaned.

[0049] It should be noted that, in the related art, the water heater is usually provided with a drain pipe for discharging the sewage in the inner tank (corresponding to the water tank of the present application). The drain pipe needs to be installed separately in the inner tank, and usually, in order to ensure that the sewage in the inner tank is drained cleanly, the inlet end of the drain pipe needs to be set below the inner tank. This is not only inconvenient for installation and maintenance, but the part of the drain pipe protruding from the inner tank also occupies the space on the user side, affecting the user experience.

[0050] According to the water tank of the water heater of the embodiment of the utility model, the water channel assembly 30 is first connected to the side panel 12 without occupying the space below the water tank (that is, the user side space), and on this basis, the sewage channel 14 is arranged on the side of the water tank, thereby ensuring that all operations (installation, maintenance) are carried out on the side of the water heater, which is not only convenient for installation work, but also easy for maintenance.

[0051] In this embodiment, for the convenience of display, Figure 2 The side panel 12 is made transparent so that only the structure of the channel (including the sewage channel 14) is retained.

[0052] In this embodiment, the sewage channel 14 and the waterway assembly 30 are preferably arranged on the same side panel 12. Figure 1 As shown, taking a cubic box 10 as an example, the side panels 12 of the box 10 include a left side panel, a right side panel, a front side panel and a rear side panel. In addition, the box 10 also includes a top panel and a bottom panel. The water channel assembly 30 is arranged on the right side panel, and the sewage channel 14 is also arranged on the right side panel. Of course, it is not excluded that the sewage channel 14 and the water channel assembly 30 are arranged on different side panels. Alternatively, when the sewage channel 14 and the water channel assembly 30 are arranged on the same side panel, the side panel is not limited to the right side panel, and can also be the left side panel or other side panels.

[0053] According to one embodiment of the utility model, combined Figure 5 As shown, the sewage channel 14 includes a curved pipe 141 and an external pipe 142. The curved pipe 141 is installed on the side of the side panel 12 facing the liquid storage space 11, and the opening of the curved pipe 141 faces downward; the external pipe 142 is installed on the side of the side panel 12 facing away from the liquid storage space 11; the curved pipe 141 and the external pipe 142 are fluidically connected to form a siphon channel in the curved pipe 141 and the external pipe 142.

[0054] In this embodiment, when the liquid in the liquid storage space 11 is discharged until the liquid level drops to below the external pipe 142 and above the inlet end of the curved pipe 141, due to the siphon effect, the liquid in the liquid storage space 11 will continue to flow out of the external pipe 142 along the siphon channel; by providing the curved pipe 141 and the external pipe 142, it is avoided that there is an excessively high protruding structure on the side panel 12, which is beneficial to the processing of the side panel 12 (such as injection molding, stamping, etc.); and the siphon channel is used to discharge the liquid in the liquid storage space 11, so that only the inlet end of the curved pipe 141 is close to the bottom of the liquid storage space 11 to effectively ensure the discharge effect of the sewage in the liquid storage space 11, and the outlet end of the curved pipe 141 (the connection with the side panel 12) can maintain a certain distance from the edge of the side panel 12, so that the drainage channel 14 on the side panel 12 and the outer wall of the side panel 12 have sufficient wall thickness, ensuring the stability of processing (injection molding, stamping, etc.) and preventing leakage of the drainage channel 14.

[0055] In this embodiment, the curved pipe 141 is an inverted "U"-shaped pipe, and its top is set higher than the external pipe 142. Of course, the curved pipe 141 can also be set with multiple bends, or bends to ensure that the highest point of the curved pipe 141 is higher than the external pipe 142 to form a siphon channel between the curved pipe 141 and the external pipe 142.

[0056] According to one embodiment of the utility model, combined Figure 5 As shown, the water circuit assembly 30 includes a sewage pipe 33; the water circuit assembly 30 as a whole (water inlet pipe 31, water outlet pipe 32, sewage pipe 33, etc.) can be pre-installed independently of the box body 10 to improve the production efficiency of the water heater.

[0057] In one embodiment, the sewage pipe 33 and the external pipe 142 are detachably connected, which facilitates the disassembly and maintenance of the sewage pipe 33. The detachable connection can also be in the form of magnetic attraction or clamping.

[0058] In one embodiment, a drain plug 331 is detachably mounted at one end of the drain pipe 33 away from the external pipe 142. When sewage needs to be discharged, the user can manually remove the drain plug 331 to enable the liquid outlet space to be connected to the outside through the drain channel 14 to achieve sewage discharge; when sewage discharge is completed, the drain plug 331 is installed back to the drain pipe 33 to close the drain channel 14 and achieve sealing of the liquid storage space 11.

[0059] According to an embodiment of the utility model, the sewage pipe 33 and the external pipe 142 are connected by a quick-release structure, which improves the installation efficiency of the waterway assembly 30 and the side panel 12; a sewage plug 331 is provided at the end of the sewage pipe 33, and the sewage pipe 33 and the water inlet pipe 31 are fixedly connected by a support leg 60. The support function of the support leg 60 can reduce the stress of the connection structure between the water inlet or outlet of the water inlet pipe 31 and the side panel 12, ensuring that the water inlet pipe 31 can be stably connected to the side panel 12, while improving the sealing effect of the connection structure between the water inlet pipe 31 and the side panel 12.

[0060] Of course, based on the positional relationship between the sewage chamber 150 and the components on the water channel assembly 30, the components fixed to the sewage pipe 33 can be adaptively adjusted. For example, when the sewage chamber 150 is located near the water outlet pipe 32, a support foot 60 can also be set between the water outlet pipe 32 and the sewage pipe 33.

[0061] According to one embodiment of the utility model, combined Figure 3 As shown, a heat exchanger 20 is provided in the water tank, and the heat exchanger 20 is used to exchange heat between water used by the user and water in the liquid storage space 11; the water inlet pipe 31 is connected to the inlet end of the heat exchanger 20, and the water outlet pipe 32 is connected to the outlet end of the heat exchanger 20; the side panel 12 is integrally formed with a water replenishment channel 160, and the water replenishment channel 160 is connected to the sewage discharge channel 14.

[0062] In this embodiment, fresh water from the outside enters the heat exchanger 20 from the water inlet pipe 31 and exchanges heat with the heated liquid in the liquid storage space 11. The high-temperature water after heat exchange flows out from the outlet end of the heat exchanger 20 and is provided to the user through the water outlet pipe 32. The user's water is obtained after heat exchange with the liquid in the liquid storage space 11 through the heat exchanger 20. The user's water does not contact the components (heating component, valve body, etc.) in the liquid storage space 11 of the box body 10, thereby effectively ensuring the water quality of the user's water. At the same time, impurities or pollutants that may exist in the user's water will not cause pollution to the components in the liquid storage space 11 of the box body 10 (such as scale formation on the surface of the heating component), thereby effectively improving the service life of the water heater.

[0063] During the heating process of the liquid in the liquid storage space 11, part of the liquid will vaporize to form steam and be discharged from the liquid storage space 11 (to ensure the pressure in the liquid storage space 11 is stable). Accordingly, the liquid content in the liquid storage space 11 is reduced. The liquid in the liquid storage space 11 is replenished by setting a water replenishment channel 160 to ensure the heat exchange efficiency between the liquid and the water in the heat exchanger 20; and the water replenishment channel 160 is integrally formed on the side panel 12, does not occupy additional space, and does not require separate component installation, which effectively reduces the production and installation costs of the water heater; and the water replenishment channel 160 is connected to the liquid storage space 11 through the sewage channel 14, which reduces the number of openings on the side panel 12 and improves the structural strength of the side panel 12.

[0064] In this embodiment, the liquid in the liquid storage space 11 can be the same water source as that of the heat exchanger 20, and the possibility of using oil, phase change energy storage materials, etc. is not excluded.

[0065] According to one embodiment of the utility model, combined Figure 4 and Figure 5 As shown, the side panel 12 includes an inner panel 122 and an outer panel 123 which are assembled with each other, and a sewage discharge cavity 150 and a water supply channel 160 are formed between the inner panel 122 and the outer panel 123 (see Figure 3 ), the sewage channel 14 is connected to the sewage chamber 150.

[0066] Splitting the side panel 12 makes it possible to facilitate manufacturing (such as injection molding, stamping) of the channels (including the sewage cavity 150 and the water supply channel 160) on the side panel 12 during the manufacturing process. The channels can also be formed directly on the inner panel 122 or the side panel 12 by machining, and the internal surface of the channels can be easily disassembled and cleaned.

[0067] In this embodiment, the sewage chamber 150 and the water replenishment channel 160 are arranged on the inner panel 122. Of course, the sewage chamber 150 and the water replenishment channel 160 can also be partially arranged on the inner panel 122, and the other part can be arranged on the outer panel 123; or the sewage chamber 150 and the water replenishment channel 160 can be arranged on the outer panel 123 to ensure that the structural form is easy to process.

[0068] According to one embodiment of the utility model, combined Figure 3 and Figure 4 As shown, the inner panel 122 is recessed away from the outer panel 123 to form a sewage cavity 150 and a water replenishment channel 160 between the inner panel 122 and the outer panel 123 .

[0069] Since the sewage chamber 150 and the water replenishment channel 160 are formed by the depression of the inner panel 122, the depression structure is hidden inside the box body 10, that is, in the user's field of vision, there is no large-area protrusion or depression structure on the side panel 12 of the box body 10, and the flat outer panel 123 ensures the convenience of installation of other components (such as water channel components 30, electronic control components) on the side panel 12.

[0070] In this embodiment, combined with Figure 1 As shown, a water circuit assembly 30 is installed on the side panel 12, and the water circuit assembly 30 is located in the lower area of ​​the side panel 12, and the space reserved in the upper area of ​​the side panel 12 can be used to install an electronic control assembly (not shown in the figure) to prevent the electronic control assembly from being damaged by water leakage of the water circuit assembly 30 or liquid leakage in the sewage chamber 150 and the water replenishment channel 160.

[0071] According to one embodiment of the utility model, the water circuit assembly 30 includes a control valve 34, which includes a cold water inlet, a hot water inlet, a first water outlet and a second water outlet; the cold water inlet is connected to the water inlet pipe 31; the hot water inlet is connected to the outlet end of the heat exchanger 20; the first water outlet is connected to the water outlet pipe 32 to provide water for use to the user; the second water outlet is connected to the water replenishment channel 160 to supply water to the liquid storage space 11.

[0072] In this embodiment, part of the low-temperature water in the water inlet pipe 31 enters the liquid storage space 11 and exchanges heat with the water in the liquid storage space 11 to form high-temperature water. The high-temperature water enters the control valve 34 and is mixed with the remaining low-temperature water in the water inlet pipe 31 in a certain proportion to form constant temperature water required by the user, and is discharged from the first water outlet for user use; the control valve 34 also returns water (at least one of high-temperature water, low-temperature water, and constant temperature water) from the second water outlet to the water replenishment channel 160 for replenishing the water in the liquid outlet space.

[0073] In this embodiment, by setting the control valve 34, the user can change the outlet water temperature of the constant temperature water according to his own needs. At the same time, the control valve 34 can also be used as a water replenishment valve, thereby reducing the number of components during the installation of the water heater, improving the installation efficiency and reducing the volume of the water heater; and, when high-temperature water or constant temperature water is used to flow back from the control valve 34 to the water replenishment channel 160, the water has a certain temperature, thereby reducing the temperature fluctuation of the water in the liquid storage space 11 and improving the heat exchange efficiency inside the water heater.

[0074] In this embodiment, high temperature water, low temperature water, and constant temperature water are relative concepts, and it only needs to satisfy that the temperature of the high temperature water is greater than the temperature of the constant temperature water and greater than the temperature of the low temperature water.

[0075] In this embodiment, the control valve 34 may be a manual thermostatic valve or an electronic thermostatic valve.

[0076] According to one embodiment of the utility model, combined Figures 1 to 3 As shown, the side panel 12 is integrally formed with a drainage channel 14. That is, the aforementioned elbow 141, drainage cavity 150, external pipe 142, etc. can be integrally formed on the side panel 12, reducing the number of components on the box body 10, improving the integration of components, and reducing the volume of the water heater.

[0077] According to one embodiment of the utility model, combined Figure 2 As shown, the side panel 12 is integrally formed with an exhaust passage 121 , and the exhaust passage 121 connects the space above the liquid level in the liquid storage space 11 with the outside.

[0078] It should be noted that, in the related art, the exhaust pipe of the water heater (corresponding to the exhaust channel 121 of the present application) is usually arranged inside the inner tank (corresponding to the box body 10 of the present application), and extends from the top of the liquid surface in the inner tank to the bottom and passes through the inner tank, so as to discharge the steam above the liquid surface from the exhaust pipe to maintain the pressure in the inner tank stable. However, the exhaust pipe arranged inside the inner tank not only occupies the space inside the inner tank, but also causes a decrease in the amount of liquid that can be stored in the inner tank.

[0079] The water tank of the water heater of the embodiment of the utility model, by forming the exhaust channel 121 integrally with the side panel 12, does not occupy the volume of the liquid storage space 11, and effectively increases the liquid storage capacity while keeping the external dimensions of the box body 10 unchanged, thereby improving the heat exchange efficiency between the liquid in the liquid storage space 11 and the water in the heat exchanger 20; and, the high-temperature steam of the exhaust channel 121 is discharged from the side panel 12 side, hidden from the user's sight to improve the aesthetics while ensuring that the steam will not spray toward the user, thereby avoiding scalding the user and improving the safety of the water heater.

[0080] In addition, in the present application, an exhaust passage 121 connecting the liquid storage space 11 and the outside is provided to ensure that the pressure in the liquid storage space 11 is similar to that in the outside and no additional pressure is generated on the inner wall of the box body 10. Therefore, the box body 10 does not need to be set to a pressure-bearing shape (such as a barrel shape), and the shape of the box body 10 can be adaptively adjusted according to the spatial layout requirements of the location of the water heater, thereby improving space utilization.

[0081] The water heater according to the second aspect of the utility model comprises a water tank of the water heater of the above embodiment. In addition to the water tank, the main components of the water heater also include a shell (not shown in the figure) covering the water tank.

[0082] The beneficial effects of the water heater according to the embodiment of the utility model are the same as the beneficial effects of the water tank of the water heater in the embodiment of the first aspect of the utility model, which will not be repeated here.

[0083] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A water tank for a water heater, characterized in that: include: A box body is provided with a liquid storage space, and the box body includes a side panel; A water channel assembly is installed on the side panel, and the water channel assembly includes a water inlet pipe and a water outlet pipe; The side panel is provided with a sewage discharge channel, which connects the liquid storage space with the outside and is used to discharge sewage in the liquid storage space.

2. The water tank of the water heater according to claim 1, characterized in that: The sewage channel comprises: An elbow is installed on a side of the side panel facing the liquid storage space, with an opening of the elbow facing downward; An external pipe is installed on a side of the side panel facing away from the liquid storage space; The elbow is fluidically connected to the external pipe to form a siphon passage in the elbow and the external pipe.

3. The water tank of the water heater according to claim 2, characterized in that: The waterway assembly includes a sewage pipe; The sewage pipe and the external pipe are detachably connected, and / or, A sewage plug is detachably mounted on one end of the sewage pipe away from the external pipe.

4. The water tank of the water heater according to claim 3, characterized in that: The sewage pipe and the external pipe are connected via a quick-release structure, the sewage pipe end is provided with the sewage plug, and the sewage pipe and the water inlet pipe are fixedly connected via supporting legs.

5. The water tank of the water heater according to any one of claims 1 to 4, characterized in that: A heat exchanger is provided in the water tank, and the heat exchanger is used to exchange heat between water used by the user and water in the liquid storage space; the inlet end of the heat exchanger is connected to the water inlet pipe, and the outlet end of the heat exchanger is connected to the water outlet pipe; The side panel is integrally formed with a water replenishment channel, and the water replenishment channel is connected to the sewage discharge channel.

6. The water tank of the water heater according to claim 5, characterized in that: The side panel includes an inner panel and an outer panel which are assembled with each other, a sewage cavity and the water replenishment channel are formed between the inner panel and the outer panel, and the sewage channel is connected to the sewage cavity.

7. The water tank of the water heater according to claim 6, characterized in that: The inner enclosure plate is recessed away from the outer enclosure plate to form the sewage discharge cavity and the water replenishment channel between the inner enclosure plate and the outer enclosure plate.

8. The water tank of the water heater according to claim 5, characterized in that: The waterway assembly includes a control valve, and the control valve includes: A cold water inlet, connected to the water inlet pipe; A hot water inlet, connected to the outlet of the heat exchanger; A first water outlet, connected to the water outlet pipe, to provide water for use to the user; The second water outlet is connected to the water replenishment channel to supply water to the liquid storage space.

9. The water tank of the water heater according to any one of claims 1 to 4, characterized in that: The side panel is integrally formed with an exhaust passage, and the exhaust passage connects the space above the liquid level in the liquid storage space with the outside world.

10. A water heater, characterized in that: A water tank comprising the water heater as claimed in any one of claims 1 to 9.

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