Water mixing valve and electric water heater

Abstract

The utility model relates to the technical field of water heaters, and particularly discloses a water mixing valve and an electric water heater, the water mixing valve comprises a valve body and a valve core; the valve body comprises a cold water inlet part, a cold water cavity, a first cold water communication part, a second cold water communication part, a cold water outlet part, a hot water inlet part and a mixed water outlet part; the hot water inlet part and the cold water outlet part are communicated with the inner container through the same opening in the inner container of the water heater; the valve core is arranged in the cold water cavity; the valve element enables water to flow to the first cold water communication part and the second cold water communication part. The first cold water communicating part communicates with the cold water cavity and the cold water outlet part; the second cold water communication part is communicated with the cold water cavity and the mixed water outlet part; the mixed water outlet part is communicated with the second cold water communication part and the hot water inlet part; at least part of the hot water inlet part is located on the inner side of the cold water outlet part or at least part of the cold water outlet part is located on the inner side of the hot water inlet part or adjacent to the hot water inlet part. The water mixing valve and the water heater with the water mixing valve are high in reliability.

Description

TECHNICAL FIELD

[0001] The present specification relates to the technical field of water heaters, in particular to a water mixing valve and an electric water heater. BACKGROUND

[0002] A water heater is a common household appliance in daily life. The water heater is usually provided with an inner container and an electric heating pipe arranged in the inner container. The electric heating pipe heats the water in the inner container after being powered on. At the same time, the inner container is connected with a water inlet pipe and a water outlet pipe. Cold water enters the inner container through the water inlet pipe, and hot water in the inner container is output from the water outlet pipe.

[0003] At present, in order to realize the output of mixed water with a proper temperature, cold water and hot water are mixed at the valve core of the water mixing valve. The flow ratio of the mixed hot water and cold water is adjusted by controlling the motor to drive the valve core to act, so as to adjust the water temperature output by the water mixing valve, and realize the output of mixed water with a proper temperature.

[0004] However, the reliability of the valve core of the water mixing valve in the prior art is easily affected by hot water. Moreover, two openings need to be formed on the inner container so that the water inlet pipe and the water outlet pipe are respectively communicated with the water mixing valve through the two openings. The process is relatively complex, and there are many water leakage points.

[0005] At present, no effective solution has been proposed for the above problems. CONTENT OF THE INVENTION

[0006] The embodiments of the present specification provide a water mixing valve and an electric water heater, so as to solve the problem that the reliability of the valve core of the water mixing valve in the prior art is easily affected by hot water. When applied to a water heater, the problem of complex process and low reliability of the inner container of the water heater can also be solved.

[0007] The embodiments of the present specification provide a water mixing valve, which comprises a valve body and a valve core.

[0008] The valve body comprises a cold water inlet portion, a cold water cavity, a first cold water communication portion, a second cold water communication portion, a cold water outlet portion, a hot water inlet portion and a mixed water outlet portion. The cold water inlet portion is in communication with the cold water cavity. The hot water inlet portion and the cold water outlet portion are used to communicate with the inner container of the water heater through the same opening on the inner container.

[0009] The valve core is arranged in the cold water cavity; the valve core is used for shunting the water entering the cold water cavity to the first cold water communication part and the second cold water communication part; the first cold water communication part is used for communicating the cold water cavity and the cold water outlet part, and the cold water outlet part is used for making the cold water flow into the inner container of the water heater through the same port on the inner container of the water heater; the second cold water communication part is used for communicating the cold water cavity and the mixed water outlet part, and the hot water inlet part is used for making the hot water in the inner container of the water heater flow into the mixed water outlet part through the same port on the inner container of the water heater;

[0010] The inlet of the mixed water outlet part is communicated with the second cold water communication part and the hot water inlet part, and the outlet of the mixed water outlet part is used for outputting the mixed water.

[0011] At least part of the hot water inlet part is located inside the cold water outlet part, or at least part of the cold water outlet part is located inside the hot water inlet part, or the cold water outlet part is arranged adjacent to the hot water inlet part.

[0012] In an embodiment, the cold water cavity is provided with a cold water inlet, a first cold water outlet and a second cold water outlet; the cold water inlet is communicated with the cold water inlet part, the first cold water outlet is communicated with the first cold water communication part, and the second cold water outlet is communicated with the second cold water communication part.

[0013] In an embodiment, the first cold water outlet and the second cold water outlet are arranged on the same face of the cold water cavity.

[0014] In an embodiment, the same face is the face of the cold water cavity facing the cold water outlet part and the mixed water outlet part.

[0015] In an embodiment, the valve core comprises a movable valve plate and a fixed valve plate, the fixed valve plate is provided with a first cold water outlet port and a second cold water outlet port, the first cold water outlet port is used for being communicated with the first cold water outlet, the second cold water outlet port is used for being communicated with the second cold water outlet, and the movable valve plate is used for controlling the communication relationship between the cold water inlet part and the first cold water outlet port and the second cold water outlet port.

[0016] In an embodiment, the cold water inlet is arranged on the same face.

[0017] In an embodiment, the first cold water outlet is arranged on the first face of the cold water cavity, the second cold water outlet is arranged on the second face of the cold water cavity, and the first face is arranged adjacent to the second face.

[0018] In one embodiment, the first cold water outlet is arranged on a first face of the cold water cavity, and the second cold water outlet is arranged on a second face of the cold water cavity, the first face being arranged opposite to the second face.

[0019] In one embodiment, the water mixing valve further comprises a driving device;

[0020] The first cold water communication part and the second cold water communication part are respectively arranged on two sides of the valve core;

[0021] The driving device is configured to drive the valve core to act, so as to adjust the proportion between the water flowing into the first cold water communication part through the first cold water outlet of the cold water cavity and the water flowing into the second cold water communication part through the second cold water outlet.

[0022] In one embodiment, the first face is a face of the cold water cavity facing the cold water outlet part and the mixed water outlet part; or,

[0023] The second face is a face of the cold water cavity facing the cold water outlet part and the mixed water outlet part.

[0024] In one embodiment, the first cold water outlet and the second cold water outlet at least partially coincide in the transverse direction, or the first cold water outlet and the second cold water outlet do not coincide in the transverse direction but have a transverse spacing less than a first preset spacing;

[0025] and / or,

[0026] The first cold water outlet and the second cold water outlet at least partially coincide in the longitudinal direction, or the first cold water outlet and the second cold water outlet do not coincide in the longitudinal direction but have a longitudinal spacing less than a second preset spacing.

[0027] In one embodiment, the first cold water communication part and the second cold water communication part have the same extension direction as a whole.

[0028] In one embodiment, the first cold water communication part comprises a first cold water communication pipe, and the second cold water communication part comprises a second cold water communication pipe, the first cold water communication pipe and the second cold water communication pipe being arranged in parallel.

[0029] In one embodiment, the first cold water communication pipe and the second cold water communication pipe at least partially coincide in the transverse direction, or the first cold water communication pipe and the second cold water communication pipe do not coincide in the transverse direction but have a transverse spacing less than a first preset spacing;

[0030] and / or,

[0031] The first cold water communication pipe and the second cold water communication pipe at least partially coincide in the longitudinal direction or the first cold water communication pipe and the second cold water communication pipe do not coincide in the longitudinal direction but the longitudinal spacing is less than a second preset spacing.

[0032] In one embodiment, at least part of the hot water inlet portion is located inside the cold water outlet portion;

[0033] The first cold water communication portion is higher than the second cold water communication portion; the first cold water communication portion extends from the cold water cavity to the cold water outlet portion; and the second cold water communication portion extends from the cold water cavity to the mixed water outlet portion.

[0034] The cold water flow channel in the cold water outlet portion and the cold water flow channel in the second cold water communication portion are not staggered.

[0035] In one embodiment, at least part of the hot water inlet portion is located inside the cold water outlet portion;

[0036] The first cold water communication portion is lower than the second cold water communication portion; the first cold water communication portion extends from the cold water cavity to the cold water outlet portion; and the second cold water communication portion extends from the cold water cavity to the mixed water outlet portion.

[0037] At least part of the cold water flow channel in the cold water outlet portion and at least part of the cold water flow channel in the second cold water communication portion are staggered.

[0038] In one embodiment, at least part of the hot water inlet portion is located inside the cold water outlet portion;

[0039] The length of the second cold water communication portion is longer than the length of the first cold water communication portion.

[0040] In one embodiment, at least part of the cold water outlet portion is located inside the hot water inlet portion;

[0041] The first cold water communication portion is lower than the second cold water communication portion; the first cold water communication portion extends from the cold water cavity to the cold water outlet portion; and the second cold water communication portion extends from the cold water cavity to the mixed water outlet portion.

[0042] The hot water flow channel in the hot water inlet portion and the cold water flow channel in the first cold water communication portion are not staggered.

[0043] In one embodiment, at least part of the cold water outlet portion is located inside the hot water inlet portion;

[0044] The first cold water communication part is higher than the second cold water communication part; the first cold water communication part extends from the cold water cavity to the cold water outlet; and the second cold water communication part extends from the cold water cavity to the mixed water outlet.

[0045] The hot water flow channel in at least part of the hot water inlet part is staggered with the cold water flow channel in at least part of the first cold water communication part.

[0046] In one embodiment, at least part of the cold water outlet is located inside the hot water inlet part.

[0047] The length of the first cold water communication part is longer than the length of the second cold water communication part.

[0048] In one embodiment, the cold water outlet is arranged adjacent to the hot water inlet part.

[0049] The first cold water outlet and the second cold water outlet are of the same height.

[0050] The first cold water communication part and the second cold water communication part are of the same height.

[0051] In one embodiment, at least part of the cold water outlet is located inside the hot water inlet part, or at least part of the hot water inlet part is located inside the cold water outlet.

[0052] The first cold water outlet and the second cold water outlet are of the same height.

[0053] The first cold water communication part and the second cold water communication part are of the same height.

[0054] In one embodiment, the vertical hot water flow channel of the hot water inlet part is coaxially arranged with the vertical cold water flow channel of the cold water outlet.

[0055] Or,

[0056] The vertical hot water flow channel of the hot water inlet part is arranged adjacent to the vertical cold water flow channel of the cold water outlet.

[0057] Or,

[0058] The vertical hot water flow channel of the hot water inlet part is arranged non-coaxially with the vertical cold water flow channel of the cold water outlet, and the vertical hot water flow channel of the hot water inlet part is located inside the vertical cold water flow channel of the cold water outlet, or the vertical cold water flow channel of the cold water outlet is located inside the vertical hot water flow channel of the hot water inlet part.

[0059] In one embodiment, the cold water outlet portion and the hot water inlet portion have a water blocking portion for blocking water in the first cold water communication portion from flowing into the hot water inlet portion.

[0060] In one embodiment, the cold water cavity is spaced apart from the cold water outlet portion and / or the hot water inlet portion by a preset distance in a transverse direction and / or a longitudinal direction to be independently arranged.

[0061] The first cold water communication portion has a first cold water communication pipe with a preset length for communicating the cold water cavity and the cold water outlet portion; and the second cold water communication portion has a second cold water communication pipe with a preset length for communicating the cold water cavity and the mixed water outlet portion.

[0062] In one embodiment, the hot water inlet portion is arranged inside the cold water outlet portion; and the cold water cavity and the valve core are located in a flow channel space formed between an inner wall of the cold water outlet portion and an outer wall of the hot water inlet portion.

[0063] The present specification further provides a mixed water valve, which includes a valve body and a valve core.

[0064] The valve body includes a cold water inlet portion, a cold water cavity, a first cold water communication portion, a second cold water communication portion, a cold water outlet portion, a hot water inlet portion, and a mixed water outlet portion; the cold water inlet portion is in communication with the cold water cavity; the hot water inlet portion and the cold water outlet portion are arranged to be in communication with an inner container of a water heater through a port on the inner container.

[0065] The valve core is arranged in the cold water cavity; the valve core is configured to split water entering the cold water cavity into the first cold water communication portion and the second cold water communication portion; the first cold water communication portion is configured to communicate the cold water cavity and the cold water outlet portion, the cold water outlet portion is configured to allow cold water to flow into the inner container of the water heater through the port on the inner container; the second cold water communication portion is configured to communicate the cold water cavity and the mixed water outlet portion, and the hot water inlet portion is configured to allow hot water in the inner container of the water heater to flow into the mixed water outlet portion through the port on the inner container.

[0066] The mixed water outlet portion has an inlet in communication with the second cold water communication portion and the hot water inlet portion, and an outlet configured to output mixed water.

[0067] The cold water cavity is provided with a cold water inlet, a first cold water outlet, and a second cold water outlet; the cold water inlet is in communication with the cold water inlet portion, the first cold water outlet is in communication with the first cold water communication portion, the second cold water outlet is in communication with the second cold water communication portion, and the first cold water outlet and the second cold water outlet are arranged on the same face of the cold water cavity.

[0068] In one embodiment, the same face is a face of the cold water cavity facing the cold water outlet and the mixed water outlet.

[0069] In one embodiment, the valve core comprises a moving valve plate and a fixed valve plate, the fixed valve plate is provided with a first cold water outlet and a second cold water outlet, the first cold water outlet is used for being in communication with the first cold water outlet, and the second cold water outlet is used for being in communication with the second cold water outlet, and the moving valve plate is used for controlling the communication relationship between the cold water inlet and the first cold water outlet and the second cold water outlet.

[0070] In one embodiment, the cold water inlet is arranged on the same face.

[0071] In one embodiment, the cold water cavity, the cold water outlet and / or the hot water inlet are independently arranged at a preset distance in the transverse direction and / or the longitudinal direction.

[0072] The first cold water communication part has a first cold water communication pipe with a preset length, and the first cold water communication pipe is used for communicating the cold water cavity and the cold water outlet; the second cold water communication part has a second cold water communication pipe with a preset length, and the second cold water communication pipe is used for communicating the cold water cavity and the mixed water outlet.

[0073] In one embodiment, the hot water inlet and the cold water outlet are independently arranged, the hot water inlet is used for being in communication with the inner container through a first port on the inner container of the water heater, and the cold water outlet is used for being in communication with the inner container through a second port on the inner container of the water heater.

[0074] The embodiments of the present specification also provide an electric water heater, comprising:

[0075] The mixed water valve in any of the above embodiments;

[0076] An inner container, the hot water inlet and the cold water outlet of the mixed water valve are in communication with the inner container;

[0077] A water pipe assembly, at least part of the water pipe assembly is arranged in the inner container, and the water pipe assembly is used for inputting cold water in the cold water outlet into the inner container and inputting hot water in the inner container into the hot water inlet.

[0078] In one embodiment, the hot water inlet and the cold water outlet of the mixed water valve are in communication with the inner container through the same port on the inner container.

[0079] In one embodiment, the water pipe assembly comprises a water inlet pipe and a water outlet pipe; the water inlet pipe is in communication with the cold water outlet part, and the water outlet pipe is in communication with the hot water inlet part.

[0080] At least part of the water outlet pipe is located inside the water inlet pipe, or at least part of the water inlet pipe is located inside the water outlet pipe, or the water inlet pipe and the water outlet pipe are arranged adjacently.

[0081] In one embodiment, the water outlet pipe is sealingly connected with the hot water inlet part.

[0082] In one embodiment, the water outlet pipe is inserted into the hot water inlet part and sealingly connected with the inner wall of the hot water inlet part.

[0083] In one embodiment, the water inlet pipe is sealingly connected with the cold water outlet part.

[0084] In one embodiment, the cold water outlet part is inserted into the water inlet pipe and sealingly connected with the inner wall of the water inlet pipe.

[0085] In one embodiment, the valve body is sealingly connected with the inner wall of the same port of the inner container.

[0086] In one embodiment, a flange is arranged on the valve body, and the flange is sealingly connected with the inner wall of the same port of the inner container.

[0087] In one embodiment, at least part of the water outlet pipe is located inside the water inlet pipe, and the valve body is sealingly connected with the inner wall of the same port of the inner container and the water inlet pipe through a sealing structure; or,

[0088] At least part of the water inlet pipe is located inside the water outlet pipe, and the valve body is sealingly connected with the inner wall of the same port of the inner container and the water outlet pipe through a sealing structure.

[0089] The technical solution of the present specification has the following remarkable beneficial effects:

[0090] The water mixing valve in the embodiment of the present specification comprises a valve body and a valve core. The valve body comprises a cold water inlet part, a cold water cavity, a first cold water connecting part, a second cold water connecting part, a cold water outlet part, a hot water inlet part and a mixed water outlet part. The cold water inlet part is in communication with the cold water cavity. The hot water inlet part and the cold water outlet part are used to be in communication with the inner container of the water heater through the same port on the inner container. By making the hot water inlet part and the cold water outlet part in communication with the inner container through the same port on the inner container of the water heater, only one port needs to be arranged on the inner container, the process is relatively simple, and the water leakage points are few. The valve core is arranged in the cold water cavity. The valve core is used to make the water entering the cold water cavity be divided into the first cold water connecting part and the second cold water connecting part. Compared with directly adjusting the ratio of cold water and hot water through the valve core, in the embodiment, by arranging the valve core in the cold water cavity and adjusting the ratio of the cold water divided into the first cold water connecting part and the second cold water connecting part by the valve core, the ratio of the cold water and the hot water flowing into the mixed water outlet part can be indirectly adjusted, the adjustment of the mixed water outlet temperature can be realized, the valve core can be prevented from being easily scaled by contacting the hot water, meanwhile, the valve core in the cold water cavity can be spaced apart from the cold water outlet part and / or the hot water inlet part through the first cold water connecting part and the second cold water connecting part, the interference of the hot water on the valve core is also avoided, and thus the reliability of the water mixing valve and the accuracy of the water temperature adjustment can be improved. The first cold water connecting part is used to connect the cold water cavity and the cold water outlet part, and the cold water outlet part is used to make the cold water flow into the inner container of the water heater through the same port. The second cold water connecting part is used to connect the cold water cavity and the mixed water outlet part, and the hot water inlet part is used to make the hot water in the inner container of the water heater flow into the mixed water outlet part through the same port. The inlet of the mixed water outlet part is in communication with the second cold water connecting part and the hot water inlet part, and the outlet of the mixed water outlet part is used to output the mixed water. At least part of the hot water inlet part is located on the inner side of the cold water outlet part, or at least part of the cold water outlet part is located on the inner side of the hot water inlet part, or the cold water outlet part is arranged adjacent to the hot water inlet part. By arranging the hot water inlet part and the cold water outlet part of the water mixing valve in the relationship of inside and outside or adjacent to each other, the hot water inlet part and the cold water outlet part are relatively compactly arranged, the size of the water mixing valve can be reduced, and thus the manufacturing cost of the water mixing valve can be reduced. In addition, the size of the same port required to be arranged on the inner container of the water heater can be reduced, the difficulty of sealing is reduced, and thus the possibility of water leakage is reduced.

[0091] Specific embodiments of the present application are disclosed in detail in the following description and drawings. Specific embodiments of the present application are described in detail in the following description and drawings. The principles of the present application can be used in the manner indicated. It should be understood that the embodiments of the present application are not limited in scope in this regard. Features described and / or illustrated with respect to one embodiment can be used in the same or similar manner in one or more other embodiments, in combination with other features in other embodiments, or instead of other features in other embodiments.

[0092] It should be emphasized that the term "comprises / comprising" when used in this specification is taken to specify the presence of stated features, integers, components or elements but does not preclude the presence or addition of one or more other features, integers, components, elements or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0093] The drawings described herein are for purposes of illustration only and are not intended to limit the scope of the present disclosure in any way. Additionally, the shapes and proportions of the various components depicted in the drawings are not intended to be limiting, and the dimensions of the various components depicted in the drawings are not intended to be limiting. Those skilled in the art will recognize that various modifications can be made to the shapes and proportions of the various components depicted in the drawings, and that the dimensions of the various components depicted in the drawings can be varied, as necessary, to achieve the desired results. In the drawings:

[0094] Figure 1 A perspective view of a water mixing valve is shown in an embodiment of the present specification;

[0095] Figure 2 A sectional view of a water mixing valve is shown in an embodiment of the present specification;

[0096] Figure 3 A sectional view of a water mixing valve is shown in an embodiment of the present specification;

[0097] Figure 4 A partial sectional view of a water mixing valve and a liner is shown in an embodiment of the present specification;

[0098] Figure 5 A structural view of a valve core is shown in an embodiment of the present specification;

[0099] Figure 6 A structural view of a moving valve plate and a fixed valve plate in a valve core is shown in an embodiment of the present specification;

[0100] Figure 7 A partial sectional view of a water mixing valve is shown in an embodiment of the present specification;

[0101] Figure 8 A flow path in a water mixing valve is shown in an embodiment of the present specification;

[0102] Figure 9 A flow path in a water mixing valve is shown in an embodiment of the present specification;

[0103] Figure 10 A flow path in a water mixing valve is shown in an embodiment of the present specification;

[0104] Figure 11 A flow path in a water mixing valve is shown in an embodiment of the present specification;

[0105] Figure 12A flow channel in the water mixing valve is shown in the embodiment of the present specification;

[0106] Figure 13 A flow channel in the water mixing valve is shown in the embodiment of the present specification;

[0107] Figure 14 A front view of the electric water heater is shown in the embodiment of the present specification;

[0108] Figure 15 A front view of the electric water heater is shown in the embodiment of the present specification.

[0109] Reference signs of the above drawings:

[0110] 100, water mixing valve; 101, valve body; 102, valve core; 103, driving device; 104, water blocking part; 110, cold water cavity; 111, first cold water communication part; 112, second cold water communication part; 113, cold water inlet part; 114, cold water outlet part; 115, hot water inlet part; 116, mixed water outlet part; 117, flange; 1101, first cold water outlet; 1102, second cold water outlet; 121, moving valve piece; 122, fixed valve piece; 1221, first cold water outlet; 1222, second cold water outlet; 1223, cold water inlet;

[0111] 10, electric water heater; 200, inner container; 300, water pipe assembly; 201, same port; 301, water inlet pipe; 302, water outlet pipe; 400, sealing structure. DETAILED DESCRIPTION

[0112] The principles and spirits of the present specification will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present specification, and do not limit the scope of the present specification in any way. On the contrary, these embodiments are provided to make the present specification disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0113] The details of the utility model can be understood more clearly in combination with the description of the drawings and the specific embodiments of the utility model. However, the specific embodiments of the utility model described herein are only used for the purpose of explaining the utility model, and cannot be understood as limiting the utility model in any way. Under the guidance of the utility model, the skilled person can conceive any possible deformation based on the utility model, which should be regarded as belonging to the scope of the utility model. It should be noted that when an element is referred to as "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a mechanical connection or an electrical connection, or it can be a connection between two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiment.

[0114] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification was chosen as used in the description of the specific embodiments for the purpose of describing the specific embodiments, and is not intended to limit the specification. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0115] The embodiment of the specification provides a water mixing valve. Please refer to Figures 1 to 4 , respectively, the three-dimensional structure of the water mixing valve in the embodiment of the specification, the sectional view, the cross-sectional view and the cross-sectional view connected with the inner container. As Figures 1 to 4 shown, the water mixing valve 100 can include a valve body 101 and a valve core (not shown in the figure).

[0116] As Figure 1 and Figure 2 shown, the valve body 101 can include a cold water inlet portion 113, a cold water outlet portion 114, a hot water inlet portion 115 and a mixed water outlet portion 116. The cold water inlet portion 113 can be connected with the cold water source, so that the cold water of the cold water source can flow into the water mixing valve 100.

[0117] The cold water outlet 114 and the hot water inlet 115 can be connected to the inner tank 200 of the water heater. It should be noted that the description of the connection between the cold water outlet 114 and the hot water inlet 115 and the inner tank 200 of the water heater is for solving the aforementioned technical problem, and not to limit the mixing valve 100 in this embodiment to this application scenario. It is understood that the mixing valve 100 in this embodiment can also be applied to other scenarios. Exemplarily and not restrictively, the hot water inlet 115 and the cold water outlet 114 of the mixing valve 100 in this embodiment can be connected to a water storage tank. Furthermore, the concept of cold water can be water at the same temperature as tap water, or it can be a relative concept, water that is colder than the water in the hot water inlet (e.g., water that is preheated to a temperature higher than tap water but lower than the water in the hot water inlet).

[0118] The cold water outlet 114 can be used to allow cold water in the mixing valve 100 to flow from the mixing valve 100 to the inner tank 200 of the water heater. The hot water inlet 115 can be used to allow hot water in the inner tank 200 of the water heater to flow into the mixing outlet 116 of the mixing valve 100.

[0119] In this embodiment, the terms "inlet" or "outlet" in the hot water inlet 115, cold water outlet 114, cold water inlet 113, and mixing water outlet 116 are all relative to the mixing valve 100. "Inlet" means water flows into the mixing valve 100, and "outlet" means water flows out of the mixing valve 100.

[0120] like Figure 4 As shown, the hot water inlet 115 and the cold water outlet 114 are connected to the inner tank 200 of the water heater through the same port 201 on the inner tank 200. In one embodiment, the hot water inlet 115 and the cold water outlet 114 can be directly connected to the inner tank 200 through the same port 201 on the inner tank 200, that is, hot water in the inner tank 200 can flow into the hot water inlet 115 of the mixing valve 100 through the same port 201. Water from the cold water outlet 114 of the mixing valve 100 can flow into the inner tank 200 through the same port 201. In another embodiment, the hot water inlet 115 and the cold water outlet 114 can be connected to the water pipe assembly 300 and connected to the inner tank 200 of the water heater through the same port 201 and the water pipe assembly 300. In this embodiment, by connecting the hot water inlet 115 and the cold water outlet 114 to the inner tank 200 through the same port 201 on the inner tank 200, only one port needs to be provided on the inner tank 200, which is simpler and has fewer leakage points.

[0121] Please continue to refer to this. Figures 2 to 4The valve body 101 can further include a cold water cavity 110, a first cold water communication part 111, and a second cold water communication part 112. The cold water cavity 110 is in communication with a cold water inlet part 113. Cold water can flow into the cold water cavity 110 through the cold water inlet part 113. A valve core is arranged in the cold water cavity 110. The valve core is used to cause the water entering the cold water cavity 110 to be divided into the first cold water communication part 111 and the second cold water communication part 112. Specifically, after the cold water in the cold water inlet part 113 flows into the cold water cavity 110, it enters the inside of the valve core and then flows out to the first cold water communication part 111 and the second cold water communication part 112 after being divided by the valve core. The first cold water communication part 111 is used to communicate the cold water cavity 110 and a cold water outlet part 114, so that the cold water flows into the inner container 200 of the water heater through the same port 201 on the inner container 200 of the water heater. The second cold water communication part 112 is used to communicate the cold water cavity 110 and a mixed water outlet part 116. A hot water inlet part 115 is used to cause the hot water in the inner container 200 of the water heater to flow into the mixed water outlet part 116 through the same port 201 on the inner container 200 of the water heater. Compared with directly adjusting the ratio of cold water and hot water by the valve core, in the embodiment, the ratio of the cold water divided by the valve core into the first cold water communication part 111 and the second cold water communication part 112 can indirectly adjust the ratio of the cold water and the hot water flowing into the mixed water outlet part 116, so as to realize the adjustment of the mixed water outlet temperature, and at the same time, the valve core can be prevented from being easily scaled by contacting the hot water. As shown in the figure, the first cold water communication part and the second cold water communication part have a preset length, and the valve core in the cold water cavity 110 can be spaced apart from the cold water outlet part and / or the hot water inlet part, so as to avoid the interference of the hot water on the valve core directly or indirectly, thereby improving the reliability of the mixed water valve 100 and the accuracy of the water temperature adjustment.

[0122] The mixed water outlet part 116 can mix the cold water flowing from the second cold water communication part 112 and the hot water flowing from the hot water inlet part 115. That is, the mixed water outlet part 116 is used to mix the cold water and the hot water and then output the mixed water. The inlet of the mixed water outlet part 116 is in communication with the second cold water communication part 112 and the hot water inlet part 115. The outlet of the mixed water outlet part 116 is used to output the mixed water.

[0123] In one embodiment, the mixed water outlet part 116 is provided with a first inlet and a second inlet. The mixed water outlet part 116 is in communication with the second cold water communication part 112 through the first inlet and is in communication with the hot water inlet part 115 through the second inlet. The first inlet can include one or more inlets. The second inlet can include one or more inlets. The first inlet and the second inlet can be the same inlet or different inlets.

[0124] The hot water flow channel formed in the hot water inlet portion 115 and the cold water flow channel formed in the cold water outlet portion 114 are independent of each other. In one embodiment, at least part of the hot water inlet portion 115 is located inside the cold water outlet portion 114. In another embodiment, at least part of the cold water outlet portion 114 is located inside the hot water inlet portion 115. In the present embodiment, at least part of A being located inside B means that at least part of the cross section of A is located inside the cross section of B, that is, the cross section of B encloses at least part of the cross section of A. As shown in Figure 3 and Figure 4 In the present embodiment of the specification, the x direction is the transverse direction and the z direction is the longitudinal direction. The cross section in the present embodiment of the specification means a cross section obtained by cutting along a direction perpendicular to the z direction.

[0125] In yet another embodiment, the cold water outlet portion 114 is located adjacent to the hot water inlet portion 115. In the present embodiment, A being adjacent to B means that A is immediately adjacent to B in physical space and there is no enclosing relationship between the cross section of A and the cross section of B.

[0126] In the present embodiment, by setting the hot water inlet portion 115 and the cold water outlet portion 114 of the mixing valve 100 in an inside-outside or adjacent relationship, the hot water inlet portion 115 and the cold water outlet portion 114 are relatively compactly arranged, which can reduce the size of the mixing valve 100, thereby reducing the manufacturing cost of the mixing valve 100. In addition, the size of the same port 201 required to be formed on the inner container 200 of the water heater can also be reduced, the sealing difficulty is reduced, and the possibility of water leakage is reduced.

[0127] In some embodiments of the present specification, the cold water cavity 110 is provided with a cold water inlet (not shown in the figure), a first cold water outlet 1101 and a second cold water outlet 1102. The cold water inlet is in communication with the cold water inlet portion 113, and the water in the cold water inlet portion 113 can enter the cold water cavity 110 through the cold water inlet. The first cold water outlet 1101 is in communication with the first cold water communication portion 111, and the water in the cold water cavity 110 can flow to the first cold water communication portion 111 through the first cold water outlet 1101. The second cold water outlet 1102 is in communication with the second cold water communication portion 112, and the water in the cold water cavity 110 can flow to the second cold water communication portion 112 through the second cold water outlet 1102. By providing the cold water cavity 110 with the cold water inlet, the first cold water outlet 1101 and the second cold water outlet 1102, the cold water cavity 110 is in communication with the cold water inlet portion 113, the first cold water communication portion 111 and the second cold water communication portion 112.

[0128] As Figures 1 to 4As shown, in some embodiments of this specification, the first cold water outlet 1101 and the second cold water outlet 1102 are disposed on the same surface of the cold water cavity 110. The cold water cavity 110 may include multiple surfaces. The first cold water outlet 1101 and the second cold water outlet 1102 may be disposed on the same surface of the cold water cavity 110. By disposing the first cold water outlet 1101 and the second cold water outlet 1102 on the same surface of the cold water cavity 110, the two cold water outlet directions of the cold water cavity 110 are aligned. Compared to setting the two cold water outlet directions to be inconsistent, in this embodiment, setting the cold water outlet directions of the first cold water outlet 1101 and the second cold water outlet 1102 to be substantially aligned ensures that the valve body 101 has a smaller volume, while facilitating the guidance of the water from the two cold water outlets to the cold water outlet section 114 and the mixing water outlet section 116, respectively.

[0129] In some embodiments of this specification, the cold water inlet (not shown in the figure) is disposed on the same surface. Compared to disposing the cold water inlet on a different surface from the first cold water outlet 1101 and the second cold water outlet 1102, this embodiment simplifies the valve core structure, simplifies the manufacturing process, and increases reliability by disposing the cold water inlet, the first cold water outlet 1101, and the second cold water outlet 1102 on the same surface.

[0130] like Figures 1 to 4 As shown, in some embodiments of this specification, the same surface is the surface of the cold water cavity 110 facing the cold water outlet 114 and the mixed water outlet 116. Compared to placing the first cold water outlet 1101 and the second cold water outlet 1102 on other surfaces of the cold water cavity 110, in this embodiment, the first cold water outlet 1101 and the second cold water outlet 1102 are placed on the surfaces of the cold water cavity 110 facing the cold water outlet 114 and the mixing water outlet 116. This facilitates the connection between the cold water cavity 110 and the cold water outlet 114 and the mixing water outlet 116, shortens the distance between the cold water cavity 110 and the cold water outlet 114 and the mixing water outlet 116, reduces the length of the first cold water connection 111 and the second cold water connection 112, reduces the complexity of the valve body 101 structure of the mixing valve 100, reduces the size of the valve body 101, thereby reducing the manufacturing cost of the mixing valve 100, and the manufacturing process of the valve body 101 is simpler.

[0131] like Figure 2 As shown, in some embodiments of this specification, a water-blocking portion 104 is provided between the cold water outlet 114 and the hot water inlet 115. The water-blocking portion 104 is used to prevent water in the first cold water communication portion 111 from flowing into the hot water inlet 115. By providing the water-blocking portion 104, it is possible to prevent water in the first cold water communication portion 111 from flowing into the hot water inlet 115, thus avoiding the flow channels in the hot water inlet 115 and the cold water outlet 114 from becoming independent of each other.

[0132] Please refer to Figure 5 and Figure 6 , a structure diagram of the valve core in the embodiment of the present specification is shown. As Figure 6 shown, in some embodiments of the present specification, the valve core 102 can include a moving valve plate 121 and a fixed valve plate 122. The fixed valve plate 122 is provided with a first cold water outlet 1221 and a second cold water outlet 1222. The first cold water outlet 1221 is used to communicate with the first cold water outlet 1101. The second cold water outlet 1222 is used to communicate with the second cold water outlet 1102. The first cold water outlet 1101 and the second cold water outlet 1102 are arranged on the same face of the cold water cavity 110. At least part of the water flowing into the cold water cavity 110 from the cold water inlet portion 113 can flow to the first cold water outlet 1101 on the cold water cavity 110 through the first cold water outlet 1221 on the fixed valve plate 122, and then flow to the cold water outlet portion 114 through the first cold water communication portion 111. At least part of the water flowing into the cold water cavity 110 from the cold water inlet portion 113 can flow to the second cold water outlet 1102 on the cold water cavity 110 through the second cold water outlet 1222 on the fixed valve plate 122, and then flow to the mixed water outlet portion 116 through the second cold water communication portion 112. The moving valve plate 121 is used to control the communication relationship between the cold water inlet portion 113 and the first cold water outlet 1221 and the second cold water outlet 1222, so as to control the proportion of the water flow to the cold water outlet portion 114 and the mixed water outlet portion 116. Compared with arranging the first cold water outlet 1221 and the second cold water outlet 1222 on different valve plates, in the present embodiment, by arranging the first cold water outlet 1101 and the second cold water outlet 1102 on the same face of the cold water cavity 110 and arranging the first cold water outlet 1221 and the second cold water outlet 1222 on the fixed valve plate 122, the cold water cavity 110 and the valve core 102 can be better adapted, without adding a bending flow channel in the cold water cavity 110, and the manufacturing process is simpler.

[0133] As Figure 5 and Figure 6 shown, the fixed valve plate 122 is further provided with a cold water inlet 1223, which communicates with the cold water inlet on the cold water cavity 110. The water flowing into the cold water inlet portion 113 can flow to the cold water inlet 1223 on the fixed valve plate 122 through the cold water inlet on the cold water cavity 110, and then flow into the cold water cavity 110.

[0134] In some embodiments of the present disclosure, the first cold water outlet 1101 is arranged on a first face of the cold water cavity 110, and the second cold water outlet 1102 is arranged on a second face of the cold water cavity 110, the first face being arranged adjacent to the second face. In the present embodiment, the first cold water outlet 1101 and the second cold water outlet 1102 can be arranged on two adjacent faces of the cold water cavity 110. In some embodiments of the present disclosure, the first face is a face of the cold water cavity 110 facing the cold water outlet 114 and the mixed water outlet 116, and the second face is arranged adjacent to the first face. In some embodiments of the present disclosure, the second face is a face of the cold water cavity 110 facing the cold water outlet 114 and the mixed water outlet 116, and the first face is arranged adjacent to the second face.

[0135] In some embodiments of the present disclosure, the first cold water outlet 1101 is arranged on a first face of the cold water cavity 110, and the second cold water outlet 1102 is arranged on a second face of the cold water cavity 110, the first face being arranged opposite to the second face. In the present embodiment, the first cold water outlet 1101 and the second cold water outlet 1102 can be arranged on two opposite faces of the cold water cavity 110. In some embodiments of the present disclosure, the first face is a face of the cold water cavity 110 facing the cold water outlet 114 and the mixed water outlet 116, and the first face is arranged opposite to the second face. In some embodiments of the present disclosure, the second face is a face of the cold water cavity 110 facing the cold water outlet 114 and the mixed water outlet 116, and the second face is arranged opposite to the first face.

[0136] Please refer to Figure 7 , which shows a partial cross-sectional view of the mixed water valve in the present embodiment. As Figure 7 indicated, in some embodiments of the present disclosure, the mixed water valve 100 can further comprise a driving device 103. The first cold water outlet 1101 and the second cold water outlet 1102 are arranged on two opposite faces of the cold water cavity 110. Correspondingly, the first cold water communication part 111 and the second cold water communication part 112 are respectively located on two sides of the valve core 102. The driving device 103 is used to drive the valve core 102 to act, so as to adjust the proportion between the water flowing into the first cold water communication part 111 from the cold water cavity 110 through the first cold water outlet 1101 and the water flowing into the second cold water communication part 112 through the second cold water outlet 1102, thereby adjusting the flow proportion of the cold water and the hot water flowing into the mixed water outlet 116, and further adjusting the water temperature of the mixed water outlet 116.

[0137] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 at least partially overlap in the lateral direction. Herein, the lateral direction refers to the projection in the horizontal plane (i.e., the plane perpendicular to the z direction). The at least partial overlap of the first cold water outlet 1101 and the second cold water outlet 1102 in the lateral direction means that the projections of the first cold water outlet 1101 and the second cold water outlet 1102 in the horizontal plane at least partially overlap, so that the overall thickness of the valve body 101 (i.e., the size of the valve body 101 in the y direction) is small, and when installed on the water heater, the local thickness of the water heater (i.e., the size of the water heater in the y direction) can be reduced, the installation volume of the mixing valve 100 can be reduced, the distance between the mixing valve and the wall can be increased, thereby ensuring the operation space of the external pipeline. In addition, it can also be more convenient to install on the inner tank 200 of the water heater under the premise of ensuring the water flow of the valve body, and reduce the manufacturing cost. For example, when the valve body 101 of the mixing valve and the inner tank 200 of the water heater are installed by flange, if the size of the valve body 101 is too large, the flange studs on the conventional inner tank cannot be matched, and the flange studs on the inner tank need to be redeveloped, which causes high cost. If the size of the first cold water outlet 1101 and the second cold water outlet 1102 is reduced due to size problems, the water flow cannot be guaranteed.

[0138] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 do not overlap in the lateral direction but have a lateral spacing less than the first preset spacing. That is, the projections of the first cold water outlet 1101 and the second cold water outlet 1102 in the horizontal plane do not overlap, and the distance between the projections is less than the first preset spacing, that is, the first cold water outlet 1101 and the second cold water outlet 1102 are arranged close to each other in the lateral direction. Although the effect is not optimal compared with the previous embodiment, it is still an improvement with beneficial effects, which can reduce the overall thickness of the valve body 101 to a certain extent, reduce the manufacturing cost to a certain extent, facilitate installation on the inner tank 200 of the water heater to a certain extent, and also reduce the installation thickness of the mixing valve 100 to a certain extent, thereby reducing the installation volume of the mixing valve 100 to a certain extent.

[0139] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 at least partially coincide in the longitudinal direction. Herein, in the longitudinal direction refers to the projection in the vertical plane (i.e., the plane perpendicular to the x direction). The first cold water outlet 1101 and the second cold water outlet 1102 at least partially coincide in the longitudinal direction means that the projections of the first cold water outlet 1101 and the second cold water outlet 1102 in the vertical plane at least partially coincide, so that the overall height of the valve body 101 (i.e., the size of the valve body in the z direction) is small, the manufacturing cost is reduced, and the installation height of the mixing valve 100 can also be reduced, thereby reducing the installation volume of the mixing valve 100, and when installed on a water heater, the height (i.e., the size in the z direction) of the local part of the water heater can also be reduced.

[0140] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 do not coincide in the longitudinal direction but have a longitudinal spacing less than the second preset spacing. That is, the projections of the first cold water outlet 1101 and the second cold water outlet 1102 in the vertical plane do not coincide and the distance between the projections is less than the second preset spacing, i.e., the first cold water outlet 1101 and the second cold water outlet 1102 are arranged close to each other in the longitudinal direction, so that the overall height of the valve body 101 is small to some extent, the manufacturing cost is reduced to some extent, and the installation height of the mixing valve 100 can also be reduced to some extent, thereby reducing the installation volume of the mixing valve 100 to some extent, and when installed on a water heater, the height of the local part of the water heater can also be reduced to some extent.

[0141] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 at least partially coincide in the lateral direction, and the first cold water outlet 1101 and the second cold water outlet 1102 do not coincide in the longitudinal direction but have a longitudinal spacing less than the second preset spacing.

[0142] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 do not coincide in the lateral direction but have a lateral spacing less than the first preset spacing, and the first cold water outlet 1101 and the second cold water outlet 1102 at least partially coincide in the longitudinal direction.

[0143] In some embodiments of the present disclosure, the first cold water outlet 1101 and the second cold water outlet 1102 do not coincide in the lateral direction but have a lateral spacing less than the first preset spacing, and the first cold water outlet 1101 and the second cold water outlet 1102 do not coincide in the longitudinal direction but have a longitudinal spacing less than the second preset spacing.

[0144] In the above embodiments, the overall height and the overall thickness of the valve body 101 can be small, the manufacturing cost is reduced, and the installation height and the installation thickness of the mixing valve 100 can also be reduced, thereby reducing the installation volume of the mixing valve 100.

[0145] In some embodiments of the present disclosure, the first cold water communication portion 111 and the second cold water communication portion 112 have the same extension direction as a whole. The first cold water communication portion 111 extends from the cold water cavity 110 to the cold water outlet portion 114 as a whole. The second cold water communication portion 112 extends from the cold water cavity 110 to the mixed water outlet portion 116 as a whole. The extension directions of the two are the same as a whole. The same as a whole can mean that the extension directions of the two are parallel, or can mean that the extension directions of the two are close to parallel, for example, the extension direction of the first cold water communication portion 111 is slightly inclined relative to the extension direction of the second cold water communication portion 112, the angle of inclination is less than a preset angle, or for example, the extension path of the first cold water communication portion 111 and / or the second cold water communication portion 112 has a bending segment, but still extends to the cold water outlet portion 114 and the mixed water outlet portion 116 as a whole (for example, when the first cold water outlet 1101 and the second cold water outlet 1102 are arranged on different end faces, from the normal installation position of the mixed water valve, the first cold water communication portion 111 needs to extend upward or downward first and then bend left to the cold water outlet portion 114, and the second cold water communication portion 112 can directly extend to the mixed water outlet portion 116). By setting the extension directions of the first cold water communication portion 111 and the second cold water communication portion 112 to be the same as a whole, the size of the valve body 101 can be reduced, and the cost can be reduced.

[0146] In some embodiments of the present disclosure, the first cold water communication portion 111 can include a first cold water communication pipe. The second cold water communication portion 112 can include a second cold water communication pipe. The first cold water communication pipe and the second cold water communication pipe are arranged in parallel. In this embodiment, the communication portion is arranged in the form of a communication pipe, and the first cold water communication pipe and the second cold water communication pipe are parallel to each other. Compared with the non-parallel arrangement of the first cold water communication pipe and the second cold water communication pipe, in this embodiment, the parallel arrangement of the first cold water communication pipe and the second cold water communication pipe can reduce the volume of the valve body 101, the structure is simpler, and the manufacturing cost can be reduced.

[0147] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe at least partially overlap in the lateral direction. Wherein, in the lateral direction refers to the projection on the horizontal plane. The first cold water communication pipe and the second cold water communication pipe at least partially overlap in the lateral direction refers to the projection of the first cold water communication pipe and the second cold water communication pipe on the horizontal plane at least partially overlap, so that the overall thickness of the valve body 101 is smaller, when installed on the water heater, the local thickness of the water heater can be reduced, the installation volume of the mixing valve 100 can be reduced, the distance between the mixing valve and the wall can be enlarged, thereby ensuring the operation space of the external pipeline, in addition, under the premise of ensuring the water passing capacity of the valve body, it is more convenient to install on the inner tank 200 of the water heater, reduces the manufacturing cost, for example, when the valve body 101 of the mixing valve and the inner tank 200 of the water heater are installed through the flange, if the size of the valve body 101 is too large, the flange stud on the conventional inner tank cannot be matched, the flange stud on the inner tank needs to be redeveloped, which causes high cost. If the pipe diameter of the first cold water communication pipe and the second cold water communication pipe is reduced due to size problems, the water passing capacity cannot be guaranteed.

[0148] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe do not overlap in the lateral direction but the lateral distance is less than the first preset distance. That is, the projection of the first cold water communication pipe and the second cold water communication pipe on the horizontal plane does not overlap, and the distance between the projections is less than the first preset distance, that is, the first cold water communication pipe and the second cold water communication pipe are arranged close to each other in the lateral direction. Although the effect is not optimal compared with the previous embodiment, it is still an improved improvement with beneficial effects, which can make the overall thickness of the valve body 101 smaller to a certain extent, reduce the manufacturing cost to a certain extent, facilitate installation on the inner tank 200 of the water heater to a certain extent, and also reduce the installation thickness of the mixing valve 100 to a certain extent, thereby reducing the installation volume of the mixing valve 100 to a certain extent.

[0149] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe at least partially overlap in the longitudinal direction. Wherein, in the longitudinal direction refers to the projection on the vertical plane. The vertical plane can be perpendicular to the overall extension direction of the first cold water communication pipe and the second cold water communication pipe. The first cold water communication pipe and the second cold water communication pipe at least partially overlap in the longitudinal direction refers to the projection of the first cold water communication pipe and the second cold water communication pipe on the vertical plane at least partially overlap, so that the overall height of the valve body 101 is smaller, reduces the manufacturing cost, and also reduces the installation height of the mixing valve 100, thereby reducing the installation volume of the mixing valve 100, when installed on the water heater, also reduces the local height of the water heater.

[0150] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe are not longitudinally coincident but longitudinally spaced apart by a distance less than the second preset distance. That is, the projections of the first cold water communication pipe and the second cold water communication pipe on the vertical plane are not coincident and the distance between the projections is less than the second preset distance, i.e., the first cold water communication pipe and the second cold water communication pipe are arranged close to each other in the longitudinal direction, so that the overall height of the valve body 101 is relatively small, the manufacturing cost is reduced to some extent, the installation height of the mixing valve 100 can also be reduced to some extent, thereby reducing the installation volume of the mixing valve 100 to some extent, and when installed on a water heater, the height of the local part of the water heater can also be reduced to some extent.

[0151] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe are at least partially coincident in the lateral direction, and the first cold water communication pipe and the second cold water communication pipe are not longitudinally coincident but longitudinally spaced apart by a distance less than the second preset distance.

[0152] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe are not coincident in the lateral direction but laterally spaced apart by a distance less than the first preset distance, and the first cold water communication pipe and the second cold water communication pipe are at least partially coincident in the longitudinal direction.

[0153] In some embodiments of the present disclosure, the first cold water communication pipe and the second cold water communication pipe are not coincident in the lateral direction but laterally spaced apart by a distance less than the first preset distance, and the first cold water communication pipe and the second cold water communication pipe are not longitudinally coincident but longitudinally spaced apart by a distance less than the second preset distance.

[0154] In the above embodiments, the overall height and overall thickness of the valve body 101 can be made relatively small, the manufacturing cost is reduced, and the installation height and installation thickness of the mixing valve 100 can also be reduced, thereby reducing the installation volume of the mixing valve 100, and when installed on a water heater, the height and thickness of the local part of the water heater can also be reduced to some extent.

[0155] Please refer to Figure 8 , which shows a cross-sectional view of the mixing valve in the embodiments of the present disclosure. As Figure 8As shown in FIG. 1, in some embodiments of the present disclosure, at least part of the hot water inlet portion 115 is located inside the cold water outlet portion 114. The first cold water communication portion 111 is higher than the second cold water communication portion 112. The first cold water communication portion 111 extends from the cold water cavity 110 to the cold water outlet portion 114. The second cold water communication portion 112 extends from the cold water cavity 110 to the mixed water outlet portion 116. The cold water flow path inside the cold water outlet portion 114 is not staggered with the cold water flow path inside the second cold water communication portion 112. Here, not staggered can mean that the projection of the cold water flow path inside the cold water outlet portion 114 on the xz plane is not staggered with the projection of the cold water flow path inside the second cold water communication portion 112 on the xz plane. By setting at least part of the hot water inlet portion 115 inside the cold water outlet portion 114 and setting the first cold water communication portion 111 higher than the second cold water communication portion 112, the cold water flow path inside the cold water outlet portion 114 is not staggered with the cold water flow path inside the second cold water communication portion 112.

[0156] Please refer to Figure 9 , a cross-sectional view of the mixed water valve in an embodiment of the present disclosure is shown. As shown in Figure 9 , in some embodiments of the present disclosure, at least part of the hot water inlet portion 115 is located inside the cold water outlet portion 114. The first cold water communication portion 111 is lower than the second cold water communication portion 112. The first cold water communication portion 111 extends from the cold water cavity 110 to the cold water outlet portion 114. The second cold water communication portion 112 extends from the cold water cavity 110 to the mixed water outlet portion 116. At least part of the cold water flow path inside the cold water outlet portion 114 is staggered with at least part of the cold water flow path inside the second cold water communication portion 112. Here, staggered can mean that at least part of the projection of the cold water flow path inside the cold water outlet portion 114 on the xz plane is staggered with at least part of the projection of the cold water flow path inside the second cold water communication portion 112 on the xz plane. As shown in Figure 9 , since the end of the second cold water communication portion 112 close to the hot water inlet portion 115 needs to pass through the cold water outlet portion 114 to communicate with the mixed water outlet portion 116, at least part of the cold water flow path inside the cold water outlet portion 114 is staggered with at least part of the cold water flow path inside the second cold water communication portion 112.

[0157] As shown in Figure 8 and Figure 9 , in some embodiments of the present disclosure, at least part of the hot water inlet portion 115 is located inside the cold water outlet portion 114. Correspondingly, the length of the second cold water communication portion 112 is longer than the length of the first cold water communication portion 111. By setting the length of the second cold water communication portion 112 to be greater than the length of the first cold water communication portion 111, it is convenient for the cold water of the second cold water communication portion 112 to mix with the hot water of at least part of the hot water inlet portion 115 located inside the cold water outlet portion 114.

[0158] Please refer to Figure 10A cross-sectional view of the mixing valve in an embodiment of this specification is shown. Figure 10 As shown, in some embodiments of this specification, at least a portion of the cold water outlet 114 is located inside the hot water inlet 115. The first cold water connection 111 is lower than the second cold water connection 112. The first cold water connection 111 extends from the cold water cavity 110 toward the cold water outlet 114. The second cold water connection 112 extends from the cold water cavity 110 toward the mixing water outlet 116. The hot water flow channel in the hot water inlet 115 and the cold water flow channel in the first cold water connection 111 do not intersect. Here, "not intersecting" means that the projections of the hot water flow channel in the hot water inlet 115 and the cold water flow channel in the first cold water connection 111 on the xz plane do not intersect. By setting at least part of the cold water outlet 114 inside the hot water inlet 115 and setting the first cold water connection 111 below the second cold water connection 112, the hot water flow channel in the hot water inlet 115 and the cold water flow channel in the first cold water connection 111 can be made to not intersect.

[0159] Please refer to Figure 11 A cross-sectional view of the mixing valve in an embodiment of this specification is shown. Figure 11 As shown, in some embodiments of this specification, at least a portion of the cold water outlet 114 is located inside the hot water inlet 115. The first cold water connection 111 is higher than the second cold water connection 112. The first cold water connection 111 extends from the cold water cavity 110 toward the cold water outlet 114. The second cold water connection 112 extends from the cold water cavity 110 toward the mixed water outlet 116. The hot water flow channels in at least a portion of the hot water inlet 115 intersect with the cold water flow channels in at least a portion of the first cold water connection 111. This intersecting can refer to the fact that the projections of the hot water flow channels in at least a portion of the hot water inlet 115 and the cold water flow channels in at least a portion of the first cold water connection 111 onto the xz plane are intersected. Figure 11 As shown, since the end of the first cold water connection 111 near the cold water outlet 114 needs to pass through the hot water inlet 115 to connect with the cold water outlet 114, at least a portion of the hot water flow channel in the hot water inlet 115 intersects with at least a portion of the cold water flow channel in the first cold water connection 111.

[0160] like Figure 10 and Figure 11 As shown, in some embodiments of this specification, at least a portion of the cold water outlet 114 is located inside the hot water inlet 115. Correspondingly, the length of the first cold water connecting portion 111 is longer than the length of the second cold water connecting portion 112. By setting the length of the first cold water connecting portion 111 to be greater than the length of the second cold water connecting portion 112, it is convenient for the first cold water connecting portion 111 to communicate with the cold water outlet 114, which is at least partially located inside the hot water inlet 115.

[0161] Please refer to Figure 12 , a top view cross-sectional view of the water mixing valve in the embodiments of the present specification is shown. As Figure 12 shown, in some embodiments of the present specification, the cold water outlet portion 114 is arranged adjacent to the hot water inlet portion 115. The cold water outlet portion 114 and the hot water inlet portion 115 can be arranged adjacent to each other in front and back direction, where the front and back direction can refer to the direction perpendicular to the installation wall surface (i.e. the y direction in Figure 12 ). The xy plane is a horizontal plane, perpendicular to the z direction. Figure 12 In the embodiment shown in FIG. 11, the cross-sectional shape of the cold water outlet portion 114 and the hot water inlet portion 115 is two adjacent semicircles, and the two semicircles can form a circle. It can be understood that in other embodiments, the cold water outlet portion 114 and the hot water inlet portion 115 can have other shapes. For example, they can be two adjacent semi-elliptical shapes, and the two semi-elliptical shapes form an ellipse. For another example, the cold water outlet portion 114 and the hot water inlet portion 115 can be two adjacent rectangles, and the two rectangles form a rectangle or a square. In the embodiment, the height of the first cold water outlet 1101 is the same as the height of the second cold water outlet 1102. The height of the first cold water communication portion 111 is the same as the height of the second cold water communication portion 112. By arranging the first cold water outlet 1221 and the second cold water outlet 1222 and the first cold water communication portion 111 and the second cold water communication portion 112 to have the same height, the installation volume can be reduced.

[0162] Please refer to Figure 13 , a top view cross-sectional view of the water mixing valve in the embodiments of the present specification is shown. As Figure 13 shown, in some embodiments of the present specification, at least part of the cold water outlet portion 114 is located inside the hot water inlet portion 115. The cold water outlet portion 114 and the hot water inlet portion 115 can be coaxially arranged or non-coaxially arranged. The height of the first cold water outlet 1101 is the same as the height of the second cold water outlet 1102. The height of the first cold water communication portion 111 is the same as the height of the second cold water communication portion 112. The first cold water outlet 1101 and the second cold water outlet 1102 can be arranged in front and back, and correspondingly, the first cold water communication portion 111 and the second cold water communication portion 112 can be arranged in front and back, where the front and back refers to the front and back arrangement along the direction perpendicular to the installation wall surface (i.e. the y direction). By arranging the first cold water outlet 1101 and the second cold water outlet 1102 and the first cold water communication portion 111 and the second cold water communication portion 112 to have the same height, the installation volume can be reduced.

[0163] It can be understood that, in some embodiments of the present specification, at least part of the hot water inlet portion 115 is located inside the cold water outlet portion 114. The at least part of the hot water inlet portion 115 and the cold water outlet portion 114 can be coaxially arranged or non-coaxially arranged. The first cold water outlet 1101 and the second cold water outlet 1102 have the same height. The first cold water communication portion 111 and the second cold water communication portion 112 have the same height. The first cold water outlet 1101 and the second cold water outlet 1102 can be arranged in front of and behind each other, and correspondingly, the first cold water communication portion 111 and the second cold water communication portion 112 can be arranged in front of and behind each other, where front and back refer to the front and back arrangement in the direction perpendicular to the installation wall surface. By arranging the first cold water outlet 1101 and the second cold water outlet 1102 and the first cold water communication portion 111 and the second cold water communication portion 112 to have the same height, the installation volume can be reduced.

[0164] As shown in Figure 8 , Figure 9 , Figure 10 and Figure 11 , in some embodiments of the present specification, the vertical hot water flow channel of the hot water inlet portion 115 is coaxially arranged with the vertical cold water flow channel of the cold water outlet portion 114.

[0165] As shown in Figure 12 , in some embodiments of the present specification, the vertical hot water flow channel of the hot water inlet portion 115 is arranged adjacent to the vertical cold water flow channel of the cold water outlet portion 114.

[0166] As shown in Figure 13 , in some embodiments of the present specification, the vertical hot water flow channel of the hot water inlet portion 115 is non-coaxially arranged with the vertical cold water flow channel of the cold water outlet portion 114, and the vertical cold water flow channel of the cold water outlet portion 114 is located inside the vertical hot water flow channel of the hot water inlet portion 115.

[0167] It can be understood that, in some embodiments of the present specification, the vertical hot water flow channel of the hot water inlet portion 115 is non-coaxially arranged with the vertical cold water flow channel of the cold water outlet portion 114, and the vertical hot water flow channel of the hot water inlet portion 115 is located inside the vertical cold water flow channel of the cold water outlet portion 114.

[0168] In some embodiments of the present specification, the cold water cavity 110, the cold water outlet portion 114 and / or the hot water inlet portion 115 are spaced apart by a predetermined distance in the transverse and / or longitudinal direction to be independently arranged. The first cold water communication portion 111 has a first cold water communication pipe with a predetermined length, and the first cold water communication pipe is used to communicate the cold water cavity 110 and the cold water outlet portion 114. The second cold water communication portion 112 has a second cold water communication pipe with a predetermined length, and the second cold water communication pipe is used to communicate the cold water cavity 110 and the mixed water outlet portion 116.

[0169] In this embodiment, "horizontal" can refer to the horizontal direction, parallel to the mounting wall surface, i.e., the x-direction. "Vertical" can refer to the vertical direction, parallel to the mounting wall surface, i.e., the z-direction. In one embodiment, such as... Figures 1 to 13 As shown, the cold water chamber 110 is spaced laterally by a predetermined distance from the cold water outlet 114 and / or the hot water inlet 115. In another embodiment, the cold water chamber 110 is spaced longitudinally by a predetermined distance from the cold water outlet 114 and / or the hot water inlet 115. In yet another embodiment, the cold water chamber 110 is spaced both laterally and longitudinally by predetermined distances from the cold water outlet 114 and / or the hot water inlet 115. The cold water chamber 110 and the cold water outlet 114 are connected by a first cold water connecting pipe of a predetermined length. The cold water chamber 110 and the hot water inlet 115 are connected by a second cold water connecting pipe of a predetermined length. By setting the cold water chamber 110 and the cold water outlet 114 and / or hot water inlet 115 at a preset distance, the valve core 102 in the cold water chamber 110 is kept away from the hot water inlet 115. This prevents the valve core 102 from clogging the valve core inlet after contacting hot water and forming scale, which would otherwise cause the valve core to fail. It also prevents the plastic parts and seals in the valve core 102 from having their service life affected due to proximity to hot water, thus reducing reliability. This improves the reliability of the mixing valve 100 and the accuracy of water temperature regulation.

[0170] In some embodiments of this specification, the hot water inlet 115 is disposed inside the cold water outlet 114. The cold water chamber 110 and the valve core 102 are located in the flow channel space formed between the inner wall of the cold water outlet 114 and the outer wall of the hot water inlet 115. In this embodiment, by disposing the cold water chamber 110 within the flow channel space formed between the inner wall of the cold water outlet 114 and the outer wall of the hot water inlet 115, direct contact between the valve core 102 and the hot water can be avoided, which would easily lead to scaling. This improves the reliability of the mixing valve 100 and the accuracy of water temperature regulation.

[0171] This specification also provides a mixing valve in its embodiments. Please refer to the following: Figures 1 to 4The water mixing valve 100 can include a valve body 101 and a valve core (not shown in the figure). The valve body 101 can include a cold water inlet portion 113, a cold water cavity 110, a first cold water communication portion 111, a second cold water communication portion 112, a cold water outlet portion 114, a hot water inlet portion 115, and a mixed water outlet portion 116. The cold water inlet portion 113 is in communication with the cold water cavity 110. The hot water inlet portion 115 and the cold water outlet portion 114 are used to communicate with the inner container 200 of the water heater through the port on the inner container 200. The valve core 102 is arranged in the cold water cavity 110. The valve core 102 is used to make the water entering the cold water cavity 110 be divided into the first cold water communication portion 111 and the second cold water communication portion 112. The first cold water communication portion 111 is used to communicate the cold water cavity 110 and the cold water outlet portion 114, and the cold water outlet portion 114 is used to make the cold water flow into the inner container 200 of the water heater through the port on the inner container 200. The second cold water communication portion 112 is used to communicate the cold water cavity 110 and the mixed water outlet portion 116, and the hot water inlet portion 115 is used to make the hot water in the inner container 200 of the water heater flow into the mixed water outlet portion 116 through the port on the inner container 200 of the water heater. The inlet of the mixed water outlet portion 116 is in communication with the second cold water communication portion 112 and the hot water inlet portion 115, and the outlet of the mixed water outlet portion 116 is used to output the mixed water. The cold water cavity 110 is provided with a cold water inlet, a first cold water outlet 1101 and a second cold water outlet 1102. The cold water inlet is in communication with the cold water inlet portion 113, the first cold water outlet 1101 is in communication with the first cold water communication portion 111, the second cold water outlet 1102 is in communication with the second cold water communication portion 112, and the first cold water outlet 1101 and the second cold water outlet 1102 are arranged on the same face of the cold water cavity 110.

[0172] In the above embodiment, compared with adjusting the ratio of cold water and hot water by the valve core 102, in the present solution, the ratio of cold water branched from the cold water cavity 110 to the first cold water communication part 111 and the second cold water communication part 112 is adjusted by the valve core 102, which can indirectly adjust the ratio of cold water and hot water flowing into the mixed water outlet part 116, realize the adjustment of the mixed water outlet temperature, and avoid the valve core 102 contacting the hot water and being easy to scale, and at the same time, as shown in the figure, the first cold water communication part 111 and the second cold water communication part 112 have a preset length, which can also make the valve core 102 in the cold water cavity 110 and the cold water outlet part 114 and / or the hot water inlet part 115 spaced apart from each other, and also avoid the direct or indirect interference of the hot water on the valve core 102, so as to improve the reliability of the mixed water valve 100 and the accuracy of the water temperature adjustment. By arranging the first cold water outlet 1101 and the second cold water outlet 1102 on the same face of the cold water cavity 110, the two cold water outlet directions of the cold water cavity 110 are consistent. Compared with arranging the two cold water outlet directions to be inconsistent, in the present embodiment, the cold water outlet directions of the first cold water outlet 1101 and the second cold water outlet 1102 are arranged to be substantially consistent, which can ensure that the valve body 101 has a smaller volume, and at the same time, the water outlets of the two cold water outlets can be respectively guided to the cold water outlet part 114 and the mixed water outlet part 116.

[0173] In some embodiments of the present specification, the same face is the face of the cold water cavity 110 facing the cold water outlet part 114 and the mixed water outlet part 116. Compared with arranging the cold water inlet on a different face from the first cold water outlet 1101 and the second cold water outlet 1102, in the present embodiment, by arranging the cold water inlet, the first cold water outlet 1101 and the second cold water outlet 1102 on the same face, the structure of the valve core 102 can be more simple, and the manufacturing process can be simpler.

[0174] In some embodiments of the present specification, the cold water inlet is arranged on the same face. Compared with arranging the cold water inlet on a different face from the first cold water outlet 1101 and the second cold water outlet 1102, in the present embodiment, by arranging the cold water inlet, the first cold water outlet 1101 and the second cold water outlet 1102 on the same face, the valve body can have a smaller volume, and at the same time, the structure of the valve core 102 can be more simple, the manufacturing process can be simpler, and the reliability can be higher.

[0175] As Figure 6As shown, in some embodiments of the present application, the valve core 102 can include a movable valve plate 121 and a fixed valve plate 122, the fixed valve plate 122 is provided with a first cold water outlet 1221 and a second cold water outlet 1222, the first cold water outlet 1221 is used to communicate with the first cold water outlet 1101, the second cold water outlet 1222 is used to communicate with the second cold water outlet 1102, and the movable valve plate 121 is used to control the communication relationship between the cold water inlet part 113 and the first cold water outlet 1221 and the second cold water outlet 1222. Compared with arranging the first cold water outlet 1221 and the second cold water outlet 1222 on different valve plates, in the present embodiment, the first cold water outlet 1101 and the second cold water outlet 1102 are arranged on the same face of the cold water cavity 110, and the first cold water outlet 1221 and the second cold water outlet 1222 are arranged on the fixed valve plate 122, so that the cold water cavity 110 and the valve core 102 can be better adapted, without adding a bending flow channel in the cold water cavity 110, the manufacturing process is simpler, and the reliability is higher.

[0176] In some embodiments of the present application, the cold water cavity 110, the cold water outlet part 114 and / or the hot water inlet part 115 are independently arranged at a preset distance in the transverse direction and / or the longitudinal direction. The first cold water communication part 111 can have a first cold water communication pipe with a preset length, which is used to communicate the cold water cavity 110 and the cold water outlet part 114. The second cold water communication part 112 can have a second cold water communication pipe with a preset length, which is used to communicate the cold water cavity 110 and the mixed water outlet part 116. By arranging the cold water cavity 110, the cold water outlet part 114 and / or the hot water inlet part 115 at a preset distance in the transverse direction and / or the longitudinal direction, the valve core 102 in the cold water cavity 110 is away from the hot water inlet part 115, which can avoid the valve core 102 from being blocked by the scale on the hot water inlet part 115, and can also avoid the plastic parts and the sealing parts in the valve core 102 from being affected by the hot water, thereby improving the reliability of the mixed water valve 100 and the accuracy of the water temperature adjustment.

[0177] In some embodiments of the present application, the hot water inlet part 115 and the cold water outlet part 114 are independently arranged, the hot water inlet part 115 is used to communicate with the inner container 200 of the water heater through a first port on the inner container 200, and the cold water outlet part 114 is used to communicate with the inner container 200 of the water heater through a second port on the inner container 200. In one embodiment, the first port and the second port can be two different ports on the inner container 200 of the water heater. In another embodiment, the first port and the second port can be the same port on the inner container 200 of the water heater.

[0178] The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. For details, refer to the description of the related processing of the foregoing embodiments, which will not be repeated here.

[0179] The embodiment of the specification also provides an electric water heater. Since the principle of solving the problem of the electric water heater 10 is similar to that of the water mixing valve 100, the implementation of the electric water heater 10 can refer to the implementation of the water mixing valve 100, and the repeated parts will not be repeated here. The electric water heater 10 using the water mixing valve 100 has high reliability.

[0180] The embodiment of the specification also provides an electric water heater 10. Please refer to Figure 4 , Figure 14 and Figure 15 , respectively showing the partial cross-sectional view, front view and perspective structural schematic view of the electric water heater 10 in the embodiment of the specification. As shown in Figure 4 , Figure 14 and Figure 15 , the electric water heater 10 can include a water mixing valve 100, an inner container 200 and a water pipe assembly 300. The implementation of the water mixing valve 100 can refer to the description in any of the foregoing embodiments, which will not be repeated here.

[0181] As shown in Figure 4 , the hot water inlet part 115 and the cold water outlet part 114 of the water mixing valve 100 are in communication with the inner container 200. At least part of the water pipe assembly 300 is arranged in the inner container 200, and the water pipe assembly 300 is used to input the cold water in the cold water outlet part 114 into the inner container 200, and also used to input the hot water in the inner container 200 into the hot water inlet part 115.

[0182] As shown in Figure 4 and Figure 15 , in some embodiments of the specification, the hot water inlet part 115 and the cold water outlet part 114 of the water mixing valve 100 are in communication with the inner container 200 through the same port 201 on the inner container 200.

[0183] As shown in Figure 4 , in some embodiments of the specification, the water pipe assembly 300 can include an inlet pipe 301 and an outlet pipe 302. The inlet pipe 301 is in communication with the cold water outlet part 114, and the outlet pipe 302 is in communication with the hot water inlet part 115. By arranging the inlet pipe 301 and the outlet pipe 302, the cold water in the cold water outlet part 114 of the water mixing valve 100 can be input into the inner container 200, and the hot water in the inner container 200 can be pressed into the hot water pipe and output to the hot water inlet part 115 of the water mixing valve 100.

[0184] In one embodiment, at least a portion of the hot water inlet 115 is located inside the cold water outlet 114, and correspondingly, at least a portion of the outlet pipe 302 communicating with the hot water inlet 115 is located inside the inlet pipe 301 communicating with the cold water outlet 114. In another embodiment, at least a portion of the cold water outlet 114 is located inside the hot water inlet 115, and correspondingly, at least a portion of the inlet pipe 301 communicating with the cold water outlet 114 is located inside the outlet pipe 302 communicating with the hot water inlet 115. In yet another embodiment, the cold water outlet 114 and the hot water inlet 115 are arranged adjacent to each other, and correspondingly, the inlet pipe 301 communicating with the cold water outlet 114 and the outlet pipe 302 communicating with the hot water inlet 115 are arranged adjacent to each other.

[0185] In this embodiment, "in" and "out" in inlet pipe 301 and outlet pipe 302 are relative to the inner tank 200 of the water heater. The pipe for water to flow out of the inner tank 200 is outlet pipe 302, and the pipe for water to flow into the inner tank 200 is inlet pipe 301.

[0186] In some embodiments of this specification, the outlet pipe 302 is sealed to the hot water inlet 115. By making the outlet pipe 302 and the hot water inlet 115 sealed, all the water in the outlet pipe 302 can flow into the hot water inlet 115 without leakage.

[0187] like Figure 4 As shown, in some embodiments of this specification, the outlet pipe 302 is inserted into the hot water inlet 115 and sealed to the inner wall of the hot water inlet 115. By inserting the outlet pipe 302 into the hot water inlet 115 and then sealing it, the sealing difficulty can be reduced and the sealing performance can be improved.

[0188] In some embodiments of this specification, the inlet pipe 301 is sealed to the cold water outlet 114. By making the inlet pipe 301 and the cold water outlet 114 sealed, all the water in the cold water outlet 114 can flow into the inlet pipe 301, preventing leakage.

[0189] like Figure 4 As shown, in some embodiments of this specification, the cold water outlet 114 is inserted into the water inlet pipe 301 and sealed to the inner wall of the water inlet pipe 301. By inserting the cold water outlet 114 into the water inlet pipe 301 and then sealing it, the sealing difficulty can be reduced and the sealing performance can be improved.

[0190] like Figure 4 As shown, in some embodiments of this specification, the valve body 101 is sealed to the inner wall of the same opening 201 of the inner liner 200. By sealing the outer wall of the valve body 101 to the inner wall of the same opening 201 of the inner liner 200, water leakage from the inner liner 200 can be prevented.

[0191] like Figure 1 As shown, in some embodiments of this specification, a flange 117 is provided on the valve body 101. The flange 117 is sealed to the inner wall of the same port 201 of the inner liner 200. In this embodiment, the flange 117 is sealed to the port on the inner liner 200.

[0192] In some embodiments of this specification, at least a portion of the outlet pipe 302 is located inside the inlet pipe 301, and the valve body 101 is connected to the inner wall of the same opening 201 of the inner liner 200 and the inlet pipe 301 via a sealing structure 400. Compared to sealing with two separate sealing structures, in this embodiment, the valve body 101, the inner liner 200, and the inlet pipe 301 are sealed with the same sealing structure 400, which can improve sealing efficiency and sealing degree, and reduce sealing difficulty.

[0193] In some embodiments of this specification, at least a portion of the inlet pipe 301 is located inside the outlet pipe 302, and the valve body 101, the inner wall of the same opening 201 of the inner liner 200, and the outlet pipe 302 are connected by a sealing structure. Compared to sealing with two separate sealing structures, in this embodiment, the valve body 101, the inner liner 200, and the outlet pipe 302 are sealed with the same sealing structure, which can improve sealing efficiency and sealing degree, and reduce sealing difficulty.

[0194] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this specification should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents.

[0195] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to the embodiments described herein by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A mixing valve, characterized by The water mixing valve comprises a valve body and a valve core; The valve body comprises a cold water inlet part, a cold water cavity, a first cold water connecting part, a second cold water connecting part, a cold water outlet part, a hot water inlet part and a mixed water outlet part; the cold water inlet part is in communication with the cold water cavity; the hot water inlet part and the cold water outlet part are used for being in communication with the inner container of the water heater through the same port on the inner container; The valve core is arranged in the cold water cavity; the valve core is used for causing the water entering the cold water cavity to be divided into two parts and flow into the first cold water connecting part and the second cold water connecting part; the first cold water connecting part is used for connecting the cold water cavity and the cold water outlet part, and the cold water outlet part is used for causing the cold water to flow into the inner container of the water heater through the same port on the inner container; the second cold water connecting part is used for connecting the cold water cavity and the mixed water outlet part, and the hot water inlet part is used for causing the hot water in the inner container of the water heater to flow into the mixed water outlet part through the same port on the inner container of the water heater; The inlet of the mixed water outlet part is in communication with the second cold water connecting part and the hot water inlet part, and the outlet of the mixed water outlet part is used for outputting the mixed water; At least part of the hot water inlet part is located inside the cold water outlet part, or at least part of the cold water outlet part is located inside the hot water inlet part, or the cold water outlet part is arranged adjacent to the hot water inlet part.

2. The water mixing valve according to claim 1, wherein The cold water cavity is provided with a cold water inlet, a first cold water outlet and a second cold water outlet; the cold water inlet is in communication with the cold water inlet part, the first cold water outlet is in communication with the first cold water connecting part, and the second cold water outlet is in communication with the second cold water connecting part.

3. The water mixing valve according to claim 2, wherein The first cold water outlet and the second cold water outlet are arranged on the same face of the cold water cavity.

4. The water mixing valve according to claim 3, wherein The same face is a face of the cold water cavity facing the cold water outlet part and the mixed water outlet part.

5. The water mixing valve according to claim 3, wherein The valve core comprises a movable valve plate and a fixed valve plate; the fixed valve plate is provided with a first cold water outlet and a second cold water outlet; the first cold water outlet is used for being in communication with the first cold water outlet, and the second cold water outlet is used for being in communication with the second cold water outlet; the movable valve plate is used for controlling the communication relationship between the cold water inlet part and the first cold water outlet and the second cold water outlet.

6. The mixing valve of claim 3, wherein The cold water inlet is arranged on the same face.

7. The water mixing valve according to claim 2, wherein The first cold water outlet is arranged on a first face of the cold water cavity, and the second cold water outlet is arranged on a second face of the cold water cavity; the first face is arranged adjacent to the second face.

8. The mixing valve of claim 2, wherein The first cold water outlet is arranged on a first face of the cold water cavity, and the second cold water outlet is arranged on a second face of the cold water cavity; the first face is arranged opposite to the second face.

9. The water mixing valve according to claim 8, wherein The water mixing valve further comprises a driving device; The first cold water communication part and the second cold water communication part are respectively located on two sides of the valve core; The driving device is used to drive the valve core to act, so as to adjust the ratio between the water flowing into the first cold water communication part through the first cold water outlet of the cold water cavity and the water flowing into the second cold water communication part through the second cold water outlet.

10. The water mixing valve according to claim 7 or 8, characterized in that, The first surface is a surface of the cold water cavity facing the cold water outlet part and the mixed water outlet part; or, The second surface is a surface of the cold water cavity facing the cold water outlet part and the mixed water outlet part.

11. The water mixing valve according to claim 3 or 7 or 8, characterized in that, The first cold water outlet and the second cold water outlet at least partially coincide in the transverse direction or the first cold water outlet and the second cold water outlet do not coincide in the transverse direction but the transverse distance is less than a first preset distance; And / or, The first cold water outlet and the second cold water outlet at least partially coincide in the longitudinal direction or the first cold water outlet and the second cold water outlet do not coincide in the longitudinal direction but the longitudinal distance is less than a second preset distance.

12. The water mixing valve according to claim 3 or 7 or 8, characterized in that, The extension directions of the first cold water communication part and the second cold water communication part are the same as a whole.

13. The water mixing valve according to claim 12, characterized in that, The first cold water communication part comprises a first cold water communication pipe, the second cold water communication part comprises a second cold water communication pipe, and the first cold water communication pipe and the second cold water communication pipe are arranged in parallel.

14. The mixing valve of claim 13, wherein The first cold water communication pipe and the second cold water communication pipe at least partially coincide in the transverse direction or the first cold water communication pipe and the second cold water communication pipe do not coincide in the transverse direction but the transverse distance is less than a first preset distance; And / or, The first cold water communication pipe and the second cold water communication pipe at least partially coincide in the longitudinal direction or the first cold water communication pipe and the second cold water communication pipe do not coincide in the longitudinal direction but the longitudinal distance is less than a second preset distance.

15. The water mixing valve according to claim 1, characterized in that, At least part of the hot water inlet part is located inside the cold water outlet part; The first cold water communication part is higher than the second cold water communication part; the first cold water communication part extends from the cold water cavity to the cold water outlet part; the second cold water communication part extends from the cold water cavity to the mixed water outlet part; The cold water flow channel in the cold water outlet part and the cold water flow channel in the second cold water communication part are not staggered.

16. The water mixing valve according to claim 1, characterized in that, At least part of the hot water inlet part is located inside the cold water outlet part; The first cold water communication part is lower than the second cold water communication part; the first cold water communication part extends from the cold water cavity to the cold water outlet part; the second cold water communication part extends from the cold water cavity to the mixed water outlet part; At least part of the cold water flow channel in the cold water outlet part and at least part of the cold water flow channel in the second cold water communication part are staggered.

17. The water mixing valve according to claim 1, wherein at least part of the hot water inlet portion is located inside the cold water outlet portion; the length of the second cold water communication portion is longer than the length of the first cold water communication portion.

18. The water mixing valve according to claim 1, wherein at least part of the cold water outlet portion is located inside the hot water inlet portion; the first cold water communication portion is lower than the second cold water communication portion; the first cold water communication portion extends from the cold water cavity to the cold water outlet portion; the second cold water communication portion extends from the cold water cavity to the mixed water outlet portion; the hot water flow path in the hot water inlet portion is not staggered with the cold water flow path in the first cold water communication portion.

19. The water mixing valve according to claim 1, wherein at least part of the cold water outlet portion is located inside the hot water inlet portion; the first cold water communication portion is higher than the second cold water communication portion; the first cold water communication portion extends from the cold water cavity to the cold water outlet portion; the second cold water communication portion extends from the cold water cavity to the mixed water outlet portion; at least part of the hot water flow path in the hot water inlet portion is staggered with at least part of the cold water flow path in the first cold water communication portion.

20. The water mixing valve according to claim 1, wherein at least part of the cold water outlet portion is located inside the hot water inlet portion; the length of the first cold water communication portion is longer than the length of the second cold water communication portion.

21. The water mixing valve according to claim 2, wherein the cold water outlet portion is located adjacent to the hot water inlet portion; the first cold water outlet is at the same height as the second cold water outlet; the first cold water communication portion is at the same height as the second cold water communication portion.

22. The water mixing valve according to claim 2, wherein at least part of the cold water outlet portion is located inside the hot water inlet portion, or at least part of the hot water inlet portion is located inside the cold water outlet portion; the first cold water outlet is at the same height as the second cold water outlet; the first cold water communication portion is at the same height as the second cold water communication portion.

23. The water mixing valve according to claim 1, wherein the vertical hot water flow path of the hot water inlet portion is coaxially arranged with the vertical cold water flow path of the cold water outlet portion; or the vertical hot water flow path of the hot water inlet portion is located adjacent to the vertical cold water flow path of the cold water outlet portion; or the vertical hot water flow path of the hot water inlet portion is non-coaxially arranged with the vertical cold water flow path of the cold water outlet portion; the vertical hot water flow path of the hot water inlet portion is located inside the vertical cold water flow path of the cold water outlet portion or the vertical cold water flow path of the cold water outlet portion is located inside the vertical hot water flow path of the hot water inlet portion.

24. The water mixing valve according to claim 1, wherein a water blocking portion is provided between the cold water outlet portion and the hot water inlet portion, the water blocking portion is used to block the water in the first cold water communication portion from flowing into the hot water inlet portion.

25. The water mixing valve according to claim 1, wherein ​ ​ The cold water cavity is spaced apart from the cold water outlet and / or the hot water inlet by a preset distance in a transverse direction and / or a longitudinal direction to be independently arranged; The first cold water communication part has a first cold water communication pipe with a preset length for communicating the cold water cavity and the cold water outlet; the second cold water communication part has a second cold water communication pipe with a preset length for communicating the cold water cavity and the mixed water outlet.

26. The water mixing valve of claim 1, wherein The hot water inlet is arranged inside the cold water outlet; the cold water cavity and the valve core are located in a flow channel space formed between the inner wall of the cold water outlet and the outer wall of the hot water inlet.

27. A mixing valve comprising: The water mixing valve comprises a valve body and a valve core; The valve body comprises a cold water inlet, a cold water cavity, a first cold water communication part, a second cold water communication part, a cold water outlet, a hot water inlet and a mixed water outlet; the cold water inlet is communicated with the cold water cavity; the hot water inlet and the cold water outlet are used to be communicated with the inner container of the water heater through the port on the inner container; The valve core is arranged in the cold water cavity; the valve core is used to make the water entering the cold water cavity be divided into the first cold water communication part and the second cold water communication part; the first cold water communication part is used to communicate the cold water cavity and the cold water outlet, the cold water outlet is used to make the cold water flow into the inner container of the water heater through the port on the inner container; the second cold water communication part is used to communicate the cold water cavity and the mixed water outlet, the hot water inlet is used to make the hot water in the inner container of the water heater flow into the mixed water outlet through the port on the inner container; The inlet of the mixed water outlet is communicated with the second cold water communication part and the hot water inlet, and the outlet of the mixed water outlet is used to output the mixed water; The cold water cavity is provided with a cold water inlet, a first cold water outlet and a second cold water outlet; the cold water inlet is communicated with the cold water inlet, the first cold water outlet is communicated with the first cold water communication part, the second cold water outlet is communicated with the second cold water communication part, and the first cold water outlet and the second cold water outlet are arranged on the same face of the cold water cavity.

28. The water mixing valve of claim 27, wherein The same face is a face of the cold water cavity facing the cold water outlet and the mixed water outlet.

29. The water mixing valve of claim 28, wherein The valve core comprises a movable valve plate and a fixed valve plate, the fixed valve plate is provided with a first cold water outlet and a second cold water outlet, the first cold water outlet is used to be communicated with the first cold water outlet, the second cold water outlet is used to be communicated with the second cold water outlet, and the movable valve plate is used to control the communication relationship between the cold water inlet and the first cold water outlet and the second cold water outlet.

30. The mixing valve of claim 28, wherein The cold water inlet is arranged on the same face.

31. The water mixing valve of claim 27, wherein The cold water cavity is spaced apart from the cold water outlet and / or the hot water inlet by a preset distance in the transverse and / or longitudinal direction to be independently arranged; The first cold water communication part has a first cold water communication pipe with a preset length for connecting the cold water cavity and the cold water outlet; and the second cold water communication part has a second cold water communication pipe with a preset length for connecting the cold water cavity and the mixed water outlet.

32. The water mixing valve according to claim 27, wherein The hot water inlet and the cold water outlet are independently arranged, the hot water inlet is arranged to be connected to the inner container through a first port on the inner container, and the cold water outlet is arranged to be connected to the inner container through a second port on the inner container.

33. An electric water heater, characterised in that, The water mixing valve according to any one of claims 1 to 32; An inner container, the hot water inlet and the cold water outlet of the water mixing valve are connected to the inner container; A water pipe assembly, at least part of the water pipe assembly is arranged in the inner container, the water pipe assembly is used to input cold water in the cold water outlet into the inner container, and is also used to input hot water in the inner container into the hot water inlet. The hot water inlet and the cold water outlet of the water mixing valve are connected to the inner container through the same port on the inner container.

34. The electric water heater according to claim 33, wherein 35. The electric water heater according to claim 34, wherein The water pipe assembly comprises an inlet pipe and an outlet pipe, the inlet pipe is connected to the cold water outlet, and the outlet pipe is connected to the hot water inlet; At least part of the outlet pipe is located inside the inlet pipe, or at least part of the inlet pipe is located inside the outlet pipe, or the inlet pipe is arranged adjacent to the outlet pipe. The outlet pipe is sealingly connected to the hot water inlet.

36. The electric water heater according to claim 35, wherein 37. The electric water heater according to claim 36, wherein The outlet pipe is inserted into the hot water inlet and is sealingly connected to the inner wall of the hot water inlet.

38. The electric water heater according to claim 35, wherein The inlet pipe is sealingly connected to the cold water outlet.

39. The electric water heater according to claim 38, wherein The cold water outlet is inserted into the inlet pipe and is sealingly connected to the inner wall of the inlet pipe. The valve body is sealingly connected to the inner wall of the same port of the inner container.

40. The electric water heater according to claim 35, wherein A flange is arranged on the valve body, and the flange is sealingly connected to the inner wall of the same port of the inner container.

41. The electric water heater according to claim 40, wherein 42. The electric water heater according to claim 40, wherein At least part of the outlet pipe is located inside the inlet pipe, and the valve body is sealingly connected to the inner wall of the same port of the inner container and the inlet pipe through a sealing structure; or At least part of the inlet pipe is located inside the outlet pipe, and the valve body is sealingly connected to the inner wall of the same port of the inner container and the outlet pipe through a sealing structure. ​

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