Water inlet and outlet valve group and wall-hanging stove water system

Abstract

The utility model discloses an inlet and outlet water valve group and wall -hanging stove water route system belong to household appliance technical field. The inlet and outlet water valve group includes valve body and water flow sensor, and valve body includes water inlet valve part, and water inlet valve part has the second heat exchange inlet channel and water inlet channel of intercommunication, and the import of water inlet channel is linked together with outside water source intercommunication, and second heat exchange inlet channel can be linked together with heat exchange structure intercommunication, water flow sensor includes magnetic rotor and hall element, and magnetic rotor is installed in water inlet channel, and can rotate under the impact of the water flow of flowing into water inlet channel, and the rotation axis of magnetic rotor coincides with the axis of water inlet channel, and hall element sets up on water inlet valve part, and is connected with magnetic rotor signal. The inlet and outlet water valve group can reduce the size of inlet and outlet water valve group in the thickness direction, thereby optimizing the space layout of water inlet valve part to satisfy the miniaturization demand of wall -hanging stove water route system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, concretely relates to an inlet and outlet water valve group and wall -hanging stove waterway system. BACKGROUND

[0002] The wall-hanging stove waterway system is a water heater taking natural gas as energy, which has a powerful home central heating function, can meet the heating demand of multiple rooms, and can provide domestic water for household bathing, kitchen and other places. The water inlet valve is an indispensable structure in the wall-hanging stove waterway system, which mainly adjusts the water flow entering the wall-hanging stove, ensures the normal operation of the wall-hanging stove, and automatically starts when the water in the wall-hanging stove is insufficient to add water to the wall-hanging stove, thereby ensuring the continuity of hot water supply.

[0003] The water inlet valve usually includes a valve body and a water flow sensor, the valve body has a water inlet interface and a heat exchange inlet channel in communication, the water inlet interface is used for connecting an external water source, the heat exchange inlet channel is used for connecting a heat exchange structure, and the external water source can flow into the heat exchange structure through the water inlet interface and the heat exchange inlet channel in sequence to provide domestic water for users; the water flow sensor is used for detecting the water flow flowing into the heat exchange inlet channel. In the related technology, the water flow sensor includes a magnetic rotor and a Hall element, because the rotation direction of the magnetic rotor is consistent with the direction of the water flow, in order to realize the installation of the water flow sensor, an additional installation cavity needs to be arranged between the water inlet interface and the heat exchange inlet channel, resulting in that the volume of the water inlet valve is large, and the miniaturization demand of the wall-hanging stove waterway system cannot be met.

[0004] This part provides background information related to the utility model, which may not be prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving or at least reducing part or all of the above problems. To this end, the utility model aims at providing an inlet and outlet water valve group and wall-hanging stove waterway system, which can reduce the size of the inlet and outlet water valve group in the thickness direction, thereby optimizing the spatial layout of the water inlet valve part to meet the miniaturization demand of the wall-hanging stove waterway system.

[0006] In order to achieve the above target, the utility model adopts the following technical scheme:

[0007] An inlet and outlet water valve group, comprising:

[0008] A valve body, comprising a water inlet valve part, the water inlet valve part has a second heat exchange inlet channel and a water inlet channel in communication, the inlet of the water inlet channel is connected with an external water source, and the second heat exchange inlet channel can be connected with a heat exchange structure;

[0009] The water flow sensor comprises a magnetic rotor and a Hall element, the magnetic rotor is installed in the water inlet channel and can rotate under the impact of water flow flowing into the water inlet channel, the rotation axis of the magnetic rotor coincides with the axis of the water inlet channel, and the Hall element is arranged on the water inlet valve part and is signal connected with the magnetic rotor.

[0010] As a preferred solution, the magnetic rotor comprises:

[0011] A magnetic axle whose axis coincides with the axis of the water inlet channel;

[0012] A sleeve installed on the magnetic axle;

[0013] A plurality of guide vanes are arranged in the sleeve along the circumference of the magnetic axle, the guide vanes have guide surfaces which are arranged obliquely relative to the axis of the magnetic axle.

[0014] As a preferred solution, the guide surfaces are arc surfaces.

[0015] As a preferred solution, the magnetic rotor further comprises rotating vanes, a plurality of the rotating vanes are arranged in the sleeve along the circumference and / or axis of the magnetic axle and are located downstream of the guide vanes.

[0016] As a preferred solution, the magnetic axle, the sleeve, the guide vanes and the rotating vanes are integrally formed.

[0017] As a preferred solution, the axis of the water inlet channel extends along the up-down direction.

[0018] As a preferred solution, the water inlet valve part further has a water supplement channel and a communication port which can communicate the water supplement channel and the water inlet channel, and the water inlet valve part further has a water pump interface, the water supplement channel communicates with the water pump interface.

[0019] The water inlet and outlet valve group further comprises a water supplement valve which can selectively open and close the communication port.

[0020] As a preferred solution, the valve body further comprises a three-way valve part and a heat exchange valve part, the heat exchange valve part is used for connecting the heat exchange structure, and the three-way valve part is located between the heat exchange valve part and the water inlet valve part and is connected with both.

[0021] As a preferred solution, the three-way valve part has a heating channel, the three-way valve part further has a hot water inlet which can selectively communicate the heating channel, and the water inlet valve part further has a second heat exchange outflow channel.

[0022] The valve body further comprises a bypass valve part having a bypass flow channel selectively connecting the heating passage and the second heat exchange inflow channel.

[0023] The utility model further provides a wall -hanging stove water route system, including heat exchange structure and as above described inlet and outlet valve group, second heat exchange inflow channel of inlet and outlet valve group is linked together with heat exchange structure.

[0024] The utility model has the advantages of:

[0025] The inlet and outlet valve group provided by the utility model has the advantages that: the water flow in the water inlet channel can impact the magnetic rotor to make it rotate, thereby generating a periodically changing magnetic field, the Hall element generates a pulse signal by detecting the change of the magnetic field, and the current water flow can be obtained by calculating the pulse frequency, the structure is simple, and the accuracy of the detection result can be ensured; the rotating axis of the magnetic rotor is arranged to coincide with the axis of the water inlet channel, so that the size of the installation space (i.e. the water inlet channel) for installing the magnetic rotor in the thickness direction of the valve body can be reduced, and the spatial layout of the water inlet valve part is optimized.

[0026] The wall -hanging stove water route system provided by the utility model can reduce the size of the wall -hanging stove water route system in the thickness direction, so that the spatial layout of the water inlet valve part is optimized, and the miniaturization requirement of the wall -hanging stove water route system is met. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings by those skilled in the art without creating labor.

[0028] Figure 1 It is the first view of the wall -hanging stove water route system provided by the embodiments of the utility model;

[0029] Figure 2 It is the second view of the wall -hanging stove water route system provided by the embodiments of the utility model;

[0030] Figure 3 It is the structural schematic view of the heat exchange structure provided by the embodiments of the utility model;

[0031] Figure 4 It is the first view of the inlet and outlet valve group provided by the embodiments of the utility model;

[0032] Figure 5is a second view of the water inlet and outlet valve group provided by the embodiment of the utility model,

[0033] Figure 6 is a first sectional view of the water inlet and outlet valve group provided by the embodiment of the utility model,

[0034] Figure 7 is a partial sectional view schematic of the water inlet and outlet valve group provided by the embodiment of the utility model,

[0035] Figure 8 is a structure schematic of the magnetic rotor provided by the embodiment of the utility model,

[0036] Figure 9 is a second sectional view of the water inlet and outlet valve group provided by the embodiment of the utility model,

[0037] Figure 10 is a third sectional view of the water inlet and outlet valve group provided by the embodiment of the utility model.

[0038] Reference signs:

[0039] 100, water inlet and outlet valve group,

[0040] 1, valve body, 11, three-way valve part, 110, three-way valve cavity, 1101, main valve cavity, 1102, first cavity, 1103, second cavity, 111, hot water inlet, 112, heating passage, 12, heat exchange valve part, 121, first heat exchange inlet flow channel, 122, first heat exchange outlet flow channel, 123, bathroom passage, 13, water inlet valve part, 130, water inlet passage, 131, water inlet interface, 132, water pump interface, 133, second heat exchange inlet flow channel, 134, second heat exchange outlet flow channel, 1361, water supplement passage, 1362, communication port, 14, bypass valve part, 141, bypass flow channel,

[0041] 2, switching mechanism,

[0042] 3, water flow sensor, 31, magnetic rotor, 311, magnetic axle, 312, sleeve, 313, guide blade, 3131, guide surface, 314, rotating blade, 32, hall element,

[0043] 4, water supplement valve,

[0044] 5, one-way valve,

[0045] 200, heat exchange structure, 2011, heat exchange inlet, 2012, heat exchange outlet, 2021, water supply inlet, 2022, water supply outlet. DETAILED DESCRIPTION

[0046] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings. It is to be further understood that the application can be carried out by specifically different embodiments and equivalents thereof.

[0047] In the present application, the terms "comprise", "contain", "have" or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0048] In the present application, the term "and / or" is a description of the association relationship of the associated objects, which means that there can be three kinds of relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents a "and / or" relationship between the front and rear associated objects.

[0049] In the present application, the terms "connection", "combination", "coupling" and "installation" can be direct connection, combination, coupling or installation, or indirect connection, combination, coupling or installation. Among them, the direct connection means that two parts or components are connected together without setting intermediate parts, and the indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0050] In the present application, those skilled in the art will understand that the relative terms used in connection with the number or condition (for example, "about", "approximately", "substantially" and the like) include the values indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use and the like related to a specific value. Such terms should also be regarded as disclosing a range defined by the absolute values of the two endpoints. The relative term can refer to a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with tolerance. In addition, "substantially" when expressing the relative angular position relationship (for example, substantially parallel, substantially perpendicular), can refer to a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) added or subtracted on the basis of the indicated angle.

[0051] In the present utility model, the function executed by the assembly can be executed by one assembly, multiple assemblies, one part, or multiple parts, which will be understood by those skilled in the art.

[0052] In the present utility model, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present utility model. In addition, it should also be understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below and back below, etc.

[0053] Figure 1 A first view of the wall-hanging stove waterway system provided by the present embodiment is shown. Figure 2 A second view of the wall-hanging stove waterway system provided by the present embodiment is shown. Figures 1-2 As shown, the present embodiment provides a wall-hanging stove waterway system, which comprises a heat exchange structure 200 and an inlet and outlet water valve group 100, the inlet and outlet water valve group 100 comprises an integrally formed valve body 1, the valve body 1 comprises a three-way valve part 11, a heat exchange valve part 12 and an inlet water valve part 13, the three-way valve part 11 is located between the heat exchange valve part 12 and the inlet water valve part 13, and the heat exchange valve part 12 and the inlet water valve part 13 are used to connect the heat exchange structure 200.

[0054] It should be particularly pointed out that, as shown, Figure 1 The height direction of the inlet and outlet water valve group 100 after actual installation is defined as the up-down direction, wherein the side of the inlet and outlet water valve group 100 close to the combustion chamber is defined as the upper side, the side of the inlet and outlet water valve group 100 away from the combustion chamber is defined as the lower side, the side of the inlet and outlet water valve group 100 close to the heat exchange structure 200 is defined as the back side, and the side of the inlet and outlet water valve group 100 away from the heat exchange structure 200 is defined as the front side; when the user stands facing the front of the inlet and outlet water valve group 100, the side of the inlet and outlet water valve group 100 facing the right hand of the user is defined as the right side, and the side of the inlet and outlet water valve group 100 facing the left hand of the user is defined as the left side. In the present embodiment, the height direction of the inlet and outlet water valve group 100 refers to the up-down direction, the width direction of the inlet and outlet water valve group 100 refers to the left-right direction, and the thickness direction of the inlet and outlet water valve group 100 refers to the front-back direction.

[0055] The wall-hanging stove water system provided by the embodiment has the valve body 1 of the inlet and outlet valve group 100 in an integrated structure, so that only one set of mold needs to be designed and processed during processing, the processing process is simplified, the processing efficiency is improved, the assembly process of the heat exchange structure 200 and the inlet and outlet valve group 100 is simplified, and the assembly efficiency is improved; the three-way valve part 11 is arranged between the heat exchange valve part 12 and the water inlet valve part 13, so that the arrangement space between the heat exchange valve part 12 and the water inlet valve part 13 can be fully utilized, compared with the prior art, the size of the inlet and outlet valve group 100 exceeding the heat exchange structure 200 in the width direction is greatly reduced, so that the size of the entire wall-hanging stove water system in the width direction is reduced, and the miniaturization requirement of the wall-hanging stove water system is met.

[0056] Figure 3 The structure diagram of the heat exchange structure 200 provided by the embodiment is shown. Figure 4 The first view of the inlet and outlet valve group 100 provided by the embodiment is shown. Figures 3-4 And combined with Figure 2 As shown in the figure, the heat exchange structure 200 includes heat exchange channels (not shown in the figure) and water supply channels (not shown in the figure) matched with each other, the three-way valve part 11 has a hot water inlet 111 and a heating channel 112, the heat exchange valve part 12 has a first heat exchange inlet flow channel 121, a first heat exchange outlet flow channel 122 and a bathroom channel 123, the hot water inlet 111 is connected with a hot water outlet of a combustion chamber, and the hot water inlet 111 can selectively communicate with the heating channel 112 or the first heat exchange inlet flow channel 121, the first heat exchange inlet flow channel 121 and the first heat exchange outlet flow channel 122 are connected with a heat exchange inlet 2011 of the heat exchange channel and a water supply outlet 2022 of the water supply channel respectively, and the first heat exchange outlet flow channel 122 is connected with the bathroom channel 123; the water inlet valve part 13 has a water inlet interface 131, a second heat exchange inlet flow channel 133, a second heat exchange outlet flow channel 134 and a water pump interface 132, the water inlet interface 131 is connected with an external water source, the second heat exchange outlet flow channel 134 is connected with the water pump interface 132, the second heat exchange inlet flow channel 133 is connected with the water inlet interface 131, and the second heat exchange inlet flow channel 133 and the second heat exchange outlet flow channel 134 are connected with a water supply inlet 2021 of the water supply channel and a heat exchange outlet 2012 of the heat exchange channel respectively, and the water pump interface 132 is connected with a cold water inlet of the combustion chamber through a water supply pump (not shown in the figure).

[0057] In working, when the hot water inlet 111 is communicated with the heating passage 112, the hot water heated by the combustion chamber can flow to the heating system in sequence through the hot water inlet 111 and the heating passage 112, so as to provide the heating requirement for the user. The water in the heating system which is heat-exchanged with the outside can flow to the combustion chamber through the water inlet valve part 13 to be heated again, so as to form a heating water circulation loop. When the hot water inlet 111 is communicated with the first heat-exchange inlet flow channel 121, the hot water heated by the combustion chamber can flow to the heat-exchange passage of the heat-exchange structure 200 in sequence through the hot water inlet 111 and the first heat-exchange inlet flow channel 121. After being heat-exchanged with the water in the water supply passage, the hot water flows to the second heat-exchange outlet flow channel 134 of the water inlet valve part 13, and then flows back to the combustion chamber through the water pump interface 132 to be heated again, so as to form a heat-exchange circulation loop. The water in the external water source can flow into the water supply passage of the heat-exchange structure 200 through the water inlet interface 131 and the second heat-exchange inlet flow channel 133. After being heat-exchanged with the water in the heat-exchange passage, the water flows to the bathroom system in sequence through the first heat-exchange outlet flow channel 122 of the heat-exchange valve part 12 and the bathroom passage 123, so as to provide the user with the domestic water.

[0058] It should be explained that the heating system specifically refers to the terminal heat dissipation components such as heating radiators, floor heating pipes or fan coil units. The water heated in the combustion chamber can be pumped to the above-mentioned terminal heat dissipation components through the water inlet and outlet valve group 100, and the heat is dissipated to the indoor air through heat dissipation, so as to improve the indoor environment temperature and meet the heating requirement of the user. The bathroom system specifically refers to the water device for the user to perform shower, washing and other operations. Therefore, the heating system and the bathroom system are both relatively mature technologies in the field, and the specific structure of the heating system and the bathroom system will not be described herein.

[0059] It should be explained that the combustion chamber is a relatively mature technology in the field, and the specific structure of the combustion chamber will not be described herein.

[0060] In order to ensure the sealing performance of the water connection between the heat-exchange valve part 12 and the heat-exchange structure 200 and between the water inlet valve part 13 and the heat-exchange structure 200, the sealing members are arranged between the outlet of the first heat-exchange inlet flow channel 121 and the heat-exchange inlet 2011, between the inlet of the first heat-exchange outlet flow channel 122 and the water supply outlet 2022, between the outlet of the second heat-exchange inlet flow channel 133 and the water supply inlet 2021, and between the inlet of the second heat-exchange outlet flow channel 134 and the heat-exchange outlet 2012, so as to avoid leakage at each connection position and affect the use safety of the entire wall-mounted stove water system. Optionally, the sealing member can be an O-ring or a star-shaped ring. The specific number of the sealing members at each connection position is not limited in the embodiment, and the designer can adjust the specific number of the sealing members according to the actual requirement.

[0061] Figure 5 A second view of the water inlet and outlet valve group 100 provided in the embodiment is shown. Figure 6A first cross-sectional view of the inlet / outlet valve assembly 100 provided in this embodiment is shown. Figure 7 A partial cross-sectional schematic diagram of the inlet and outlet valve assembly 100 provided in this embodiment is shown. Figure 8 A schematic diagram of the magnetic rotor 31 provided in this embodiment is shown. Figures 5-8 As shown, the inlet and outlet valve assembly 100 also includes a water flow sensor 3. The inlet valve section 13 also has an inlet channel 130. The inlet of the inlet channel 130 forms the aforementioned inlet interface 131. The water flow sensor 3 is configured to detect the water flow in the inlet channel 130 so as to accurately control the water flow and ensure that water of suitable temperature flows out of the bathroom channel 123 to meet the user's water needs.

[0062] In this embodiment, the water flow sensor 3 includes a magnetic rotor 31 and a Hall element 32. The magnetic rotor 31 is installed in the water inlet channel 130 and can rotate under the impact of the water flowing into the water inlet channel 130. The rotation axis of the magnetic rotor 31 coincides with the axis of the water inlet channel 130. The Hall element 32 is disposed on the water inlet valve section 13 and is signal-connected to the magnetic rotor 31. When the water flow at the water inlet interface 131 enters the water inlet channel 130, the water flow impacts the magnetic rotor 31 to make it rotate, thereby generating a periodically changing magnetic field. The Hall element 32 generates a pulse signal by detecting the change in the magnetic field. The current water flow can be obtained by calculating the pulse frequency. The structure is simple and can ensure the accuracy of the detection results. By aligning the rotation axis of the magnetic rotor 31 with the axis of the water inlet channel 130, the size of the installation space for installing the magnetic rotor 31 (i.e., the water inlet channel 130) in the thickness direction of the valve body 1 can be reduced, thereby optimizing the spatial layout of the water inlet valve section 13 and further meeting the miniaturization requirements of the wall-hung boiler water circuit system.

[0063] It needs to be explained that, such as Figure 5 and Figure 7 As shown, in this embodiment, the water inlet 131 is arranged downwards, the second heat exchange inlet channel 133 and the second heat exchange outlet channel 134 are arranged backwards (i.e. towards the side facing the heat exchange structure 200) and are arranged in the vertical direction; the axial direction of the water inlet channel 130 extends in the vertical direction, and there is no need to set an additional mounting cavity for installing the magnetic rotor 31, which simplifies the overall structure of the water inlet and outlet valve group 100.

[0064] Specifically, such as Figure 7 and Figure 8As shown, the magnetic rotor 31 comprises a magnetic axle 311, a sleeve 312 and guide vanes 313, the axis of the magnetic axle 311 coincides with the axis of the water inlet channel 130; the sleeve 312 is installed on the magnetic axle 311; a plurality of guide vanes 313 are arranged in the sleeve 312 along the circumference of the magnetic axle 311, and the guide vanes 313 have guide surfaces 3131 which are arranged obliquely relative to the axis of the magnetic axle 311. By arranging the guide surfaces 3131 which are oblique relative to the axis of the magnetic axle 311, the water flow flowing into the water inlet channel 130 can directly impact on the guide surfaces 3131 to push the magnetic rotor 31 to rotate, thereby ensuring the accuracy of the current water flow detected by the water flow sensor 3. Optionally, the guide surfaces 3131 are arc surfaces, which can make the guide vanes 313 more easily rotate under the impact of the water flow, so as to avoid that the water flow sensor 3 cannot accurately detect the current water flow when the water flow is small.

[0065] Further, the magnetic rotor 31 further comprises rotating vanes 314, a plurality of rotating vanes 314 are arranged in the sleeve 312 along the circumference and / or axis of the magnetic axle 311 and are located downstream of the guide vanes 313. In the embodiment, the rotating vanes 314 are flat plate vanes, which cooperate with the guide vanes 313, and the arrangement of the rotating vanes 314 can reduce the processing difficulty and processing cost of the magnetic rotor 31, and the arrangement of the guide vanes 313 can make the magnetic rotor 31 rotate under the impact of the water flow to accurately obtain the current water flow value.

[0066] Optionally, the magnetic axle 311, the sleeve 312, the guide vanes 313 and the rotating vanes 314 are an integral structure, which can save the connecting structure between the magnetic axle 311, the sleeve 312, the guide vanes 313 and the rotating vanes 314, thereby reducing the number of parts, simplifying the assembly process, being easy to install, and being conducive to improving the overall strength of the magnetic rotor 31.

[0067] Figure 9 Fig. 2 shows a second cross-sectional view of the water inlet and outlet valve set 100 provided in the embodiment. As shown in Fig. 2, the water inlet and outlet valve set 100 comprises a water inlet valve 1, a water outlet valve 2 and a water flow sensor 3. Figure 9 and in combination with Figure 4As shown, the water inlet valve part 13 further has a water supplement passage 1361 and a communication port 1362 which can communicate the water supplement passage 1361 and the water inlet passage 130, and the water supplement passage 1361 is communicated with the water pump interface 132; the water inlet and outlet valve group 100 further comprises a water supplement valve 4 which can selectively open and close the communication port 1362. When the heating water circuit is short of water, the water supplement valve 4 can be adjusted to open the communication port 1362, so that the water in the water inlet passage 130 flows to the water supplement passage 1361 through the communication port 1362 and then flows to the water pump interface 132 to be delivered to the combustion chamber by the water pump for heating to supplement the heating water circuit. The specific structure and working principle of the water supplement valve 4 are not limited in the embodiment, and the water supplement valve which can be applied to the water inlet valve in the related art is within the protection scope of the embodiment.

[0068] As shown in FIGS. 1, 2 and 3, the water inlet and outlet valve group 100 further comprises a three-way valve part 11 which is arranged in the water inlet passage 130 and has a water inlet 131 and a water outlet 132, and the water inlet 131 is communicated with the water inlet passage 130, and the water outlet 132 is communicated with the water outlet passage 133. Figure 4 and Figure 6 As shown, the three-way valve part 11 further has a three-way valve cavity 110 which comprises a first cavity 1102, a main valve cavity 1101 and a second cavity 1103 which are communicated in sequence along the axial direction of the three-way valve cavity 110, the main valve cavity 1101 is communicated with the hot water inlet 111, and the main valve cavity 1101 can selectively communicate the first cavity 1102 or the second cavity 1103; the heating passage 112 is communicated with the first cavity 1102, and the first heat exchange inlet flow channel 121 is communicated with the second cavity 1103. When the main valve cavity 1101 is communicated with the first cavity 1102, the hot water in the combustion chamber can be circulated in the heating water circulation loop; when the main valve cavity 1101 is communicated with the second cavity 1103, the hot water in the combustion chamber can be circulated in the heat exchange circulation loop.

[0069] Optionally, the water inlet and outlet valve group 100 further comprises a switching mechanism 2 which is movably arranged in the three-way valve cavity 110 to selectively communicate the heating passage 112 or the first heat exchange inlet flow channel 121 with the three-way valve cavity 110. That is, by the movement of the switching mechanism 2 in the three-way valve cavity 110, the passage between the main valve cavity 1101 and the first cavity 1102 or the passage between the main valve cavity 1101 and the second cavity 1103 can be selectively opened, so as to realize the three-way switching. The specific structure and working principle of the switching mechanism 2 are not described herein again, and the switching mechanism which can be applied to the water inlet and outlet valve group to realize the three-way switching in the three-way valve cavity in the related art is within the protection scope of the embodiment.

[0070] Further, the water inlet and outlet valve group 100 further comprises a driving mechanism (not shown in the figure), and the output end of the driving mechanism is connected with the switching mechanism 2 to drive the switching mechanism 2 to move in the three-way valve cavity 110. In the embodiment, the driving mechanism can adopt a synchronous motor, a stepping motor, a servo motor or other driving devices.

[0071] In the related art, in order to realize the water pressure balance of the entire wall-mounted stove water system, the water outlet valve also has a bypass flow channel. When the bypass flow channel is opened, the water in the heating channel will flow to the heat exchange structure through the first heat exchange inlet channel, and then flow to the combustion chamber from the water pump interface of the water inlet valve to complete the water replenishment operation. However, in this water replenishment process, on the one hand, the water flowing into the heat exchange structure will exchange heat with the bathroom water therein, causing heat loss. When the heated water flows into the combustion chamber again for reheating, the heating time is relatively long, which will cause resource waste. On the other hand, the water flowing from the heating channel to the heat exchange structure has a high temperature. When the temperature of the bathroom water in the heat exchange structure is low, the sealing element at the connection between the water outlet valve and the heat exchange structure is prone to rapid temperature rise, causing rapid expansion and leakage risk.

[0072] Figure 10 A third sectional view of the water inlet and outlet valve set 100 provided by the present embodiment is shown. To solve the above problems, as shown in Figure 10 and as shown in Figure 1 , Figure 2 , the valve body 1 further comprises a bypass valve part 14, the two ends of the bypass valve part 14 are connected with the three-way valve part 11 and the water inlet valve part 13 respectively, and a bypass flow channel 141 is formed in the bypass valve part 14. The bypass flow channel 141 can selectively communicate the heating channel 112 and the second heat exchange outlet channel 134. By providing the bypass valve part 14, when the main valve cavity 1101 is in communication with the heating channel 112, the bypass flow channel 141 can communicate the heating channel 112 and the second heat exchange outlet channel 134, so that the water in the heating channel 112 flows to the combustion chamber through the bypass flow channel 141 and then through the second heat exchange outlet channel 134 and the water pump interface 132, thereby stabilizing the water pressure balance of the entire wall-mounted stove water system, and further ensuring the safe use of the wall-mounted stove water system. In addition, the water in the heating channel 112 does not need to exchange heat with the heat exchange structure 200, which can shorten the time required for reheating in the combustion chamber, reduce resource waste, and avoid the rapid expansion of the sealing element caused by the heat exchange between the water with high temperature in the heating channel 112 and the water with low temperature in the heat exchange structure 200, thereby ensuring the safety of the wall-mounted stove water system.

[0073] Further, the water inlet and outlet valve set 100 further comprises a one-way valve 5 which is adjustably installed in the bypass flow channel 141 to allow only the water in the heating channel 112 to flow to the second heat exchange outlet channel 134, avoiding the water in the water inlet valve part 13 from flowing back to the three-way valve part 11, which affects the water quality of the bathroom water. It should be noted that the one-way valve 5 is a commonly used valve structure in the prior art, and the specific structure and working principle of the one-way valve 5 will not be described here. The one-way valve that can be applied to the water inlet and outlet valve set in the prior art is within the scope of protection of the present embodiment.

[0074] The basic principle, main features and advantages of the present application are shown and described above. The skilled in the art should understand that the above examples do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. An inlet / outlet water valve assembly, characterized in that, include: The valve body (1) includes an inlet valve section (13), which has a second heat exchange inlet channel (133) and an inlet channel (130) connected to each other. The inlet of the inlet channel (130) is connected to an external water source, and the second heat exchange inlet channel (133) can be connected to a heat exchange structure (200). The water flow sensor (3) includes a magnetic rotor (31) and a Hall element (32). The magnetic rotor (31) is installed in the water inlet channel (130) and can rotate under the impact of the water flow into the water inlet channel (130). The rotation axis of the magnetic rotor (31) coincides with the axis of the water inlet channel (130). The Hall element (32) is disposed on the water inlet valve (13) and is signal connected to the magnetic rotor (31).

2. The inlet and outlet water valve assembly according to claim 1, characterized in that, The magnetic rotor (31) includes: The magnetic wheel shaft (311) has its axis coincident with the axis of the water inlet channel (130); A sleeve (312) is mounted on the magnetic wheel shaft (311); Guide vanes (313), a plurality of guide vanes (313) are arranged circumferentially within the sleeve (312) along the magnetic wheel shaft (311), the guide vanes (313) have guide surfaces (3131), the guide surfaces (3131) are inclined relative to the axis of the magnetic wheel shaft (311).

3. The inlet and outlet water valve assembly according to claim 2, characterized in that, The guide surface (3131) is an arc-shaped surface.

4. The inlet and outlet water valve assembly according to claim 2, characterized in that, The magnetic rotor (31) further includes rotating blades (314), a plurality of rotating blades (314) being spaced apart in the sleeve (312) along the circumferential and / or axial direction of the magnetic wheel shaft (311) and located downstream of the guide blades (313).

5. The inlet and outlet water valve assembly according to claim 4, characterized in that, The magnetic wheel shaft (311), the sleeve (312), the guide vane (313), and the rotating vane (314) are integrally formed.

6. The inlet and outlet water valve assembly according to claim 1, characterized in that, The water inlet channel (130) extends along the vertical direction.

7. The inlet and outlet water valve assembly according to claim 1, characterized in that, The inlet valve section (13) also has a water replenishment channel (1361) and a connecting port (1362) that can connect the water replenishment channel (1361) and the inlet channel (130). The inlet valve section (13) is also provided with a water pump interface (132), and the water replenishment channel (1361) is connected to the water pump interface (132). The inlet and outlet valve group also includes a water supply valve (4), which can selectively open and close the connection port (1362).

8. The inlet and outlet valve assembly according to any one of claims 1 to 7, characterized in that, The valve body (1) further includes a three-way valve section (11) and a heat exchange valve section (12). The heat exchange valve section (12) is used to connect the heat exchange structure (200). The three-way valve section (11) is located between the heat exchange valve section (12) and the water inlet valve section (13) and is connected to both.

9. The inlet and outlet water valve assembly according to claim 8, characterized in that, The three-way valve section (11) has a heating channel (112) and the three-way valve section (11) is also provided with a hot water inlet (111) that can selectively connect to the heating channel (112). The inlet valve section (13) also has a second heat exchange outlet channel (134). The valve body (1) further includes a bypass valve section (14), which has a bypass flow channel (141) that can selectively connect the heating channel (112) and the second heat exchange outlet channel (134).

10. A water system for a wall-hung boiler, characterized in that, It includes a heat exchange structure (200) and an inlet / outlet water valve assembly as described in any one of claims 1 to 9, wherein the second heat exchange inlet channel (133) of the inlet / outlet water valve assembly is connected to the heat exchange structure (200).

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