Three-way valve assembly and gas water heater

Abstract

The utility model relates to hot water supply equipment, and discloses a three-way valve assembly and a gas water heater. The three-way valve assembly comprises a valve body and an electromagnetic valve, a water inlet channel, a bypass channel and at least two water distribution cavities are formed in the valve body, a water inlet and a water outlet are formed in the two ends of the water inlet channel respectively, each water distribution cavity communicates with the water inlet channel, and a communicating opening is formed in each water distribution cavity; each water distribution cavity communicates with the bypass channel through the corresponding communicating opening, and the electromagnetic valves correspond to the water distribution cavities one to one and are used for controlling the corresponding communicating openings to be opened and closed. The electromagnetic valve is controlled to close the communicating opening of each water distribution cavity, so that water flow in the water inlet channel flows out from the water outlet after water flow of an external water inlet pipe enters the water inlet channel from the water inlet. At the moment, water flow in the water inlet channel cannot enter the bypass channel through the communicating opening of the water distribution cavity, so that the bypass channel is completely closed, and the constant-temperature performance of the gas water heater is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment, in particular to a three-way valve component and a gas water heater. Background Art

[0002] Gas water heaters can be divided into models without bypass pipes and models with bypass pipes. Models with bypass pipes mix cold water at the hot water outlet through the bypass pipe to ensure the constant temperature of the hot water outlet, which can effectively avoid the situation where the outlet water temperature is too high due to the secondary start and stop of the gas water heater.

[0003] However, the existing three-way valve cannot completely close the bypass pipe, and when the water use environment (such as water temperature and water pressure) fluctuates, the constant temperature effect of the water outlet is affected to a certain extent. Utility Model Content

[0004] The first technical problem solved by the utility model is to provide a three-way valve assembly, which effectively solves the problem that the existing three-way valve cannot completely close the bypass pipe, and can improve the constant temperature performance of the gas water heater.

[0005] The second technical problem solved by the utility model is to provide a gas water heater, which effectively solves the problem that the bypass pipe of the existing gas water heater cannot be completely closed, and at the same time can improve the constant temperature performance of the gas water heater.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A three-way valve assembly, comprising:

[0008] A valve body, wherein a water inlet channel, a bypass channel and at least two water diversion chambers are provided therein, wherein the two ends of the water inlet channel respectively form a water inlet and a water outlet, each of the water diversion chambers is communicated with the water inlet channel, each of the water diversion chambers is provided with a communication port, each of the water diversion chambers is communicated with the bypass channel through the corresponding communication port, one end of the bypass channel is closed, and the other end forms a bypass outlet;

[0009] The solenoid valves are arranged one by one corresponding to the water diversion chambers and are used to control the opening and closing of the corresponding communication ports.

[0010] Compared with the background technology, the three-way valve assembly described in the utility model has the following beneficial effects: taking a gas water heater as an example, the water outlet of the three-way valve assembly is connected to the water tank of the gas water heater, the water inlet is connected to the external water inlet pipe, and the bypass outlet is connected to the bypass pipe in the gas water heater. When the bypass water mixing function is needed, the solenoid valve is controlled to open the corresponding connecting port, and the water flow of the external water inlet pipe enters the water inlet channel from the water inlet, wherein a part of the water flow flows out from the water outlet along the water inlet channel, and the other part of the water flow flows into the corresponding water diversion chamber from the water inlet channel. Since the connecting port of the water diversion chamber is in an open state, the water flow in the water diversion chamber flows into the bypass channel through the connecting port, and flows out from the bypass outlet along the bypass channel, thereby realizing bypass water mixing.

[0011] At the same time, since the valve body is provided with at least two water distribution chambers, the opening and closing of different numbers of connecting ports can be controlled by the solenoid valve to control different flow rates of water to flow out of the bypass outlet, thereby realizing the regulation of the bypass mixed water flow rate, which can effectively improve the constant temperature effect of the water outlet of the gas water heater in application scenarios such as fluctuations in the water use environment and secondary start and stop of the gas water heater, thereby improving the constant temperature performance of the gas water heater.

[0012] When the bypass water mixing function is not needed, the solenoid valve can be controlled to close the connecting port of each water distribution chamber, so that after the water flow from the external water inlet pipe enters the water inlet channel from the water inlet, the water flow in the water inlet channel flows out from the water outlet. At this time, the water flow in the water inlet channel cannot enter the bypass channel through the connecting port of the water distribution chamber, thereby achieving complete closure of the bypass channel.

[0013] In addition, the three-way valve assembly uses a solenoid valve to control the opening and closing of the connecting port to adjust different bypass ratios. The solenoid valve has a fast response speed and can quickly respond to the gas water heater's need to adjust the bypass water ratio, further improving the constant temperature performance of the gas water heater.

[0014] In one embodiment, an opening area of ​​at least one of the communication ports is different from opening areas of the other communication ports.

[0015] In one embodiment, the sum of the opening areas of the plurality of communication ports is smaller than the cross-sectional area of ​​the bypass channel.

[0016] In one embodiment, at least two of the water diversion chambers are arranged side by side on the bypass channel, and the communication port is opened on the side wall of the bypass channel opposite to the water diversion chamber.

[0017] In one of the embodiments, the valve body is further provided with a diversion chamber connected to the water inlet channel, and the side wall of the diversion chamber is provided with diversion ports arranged one-to-one corresponding to the water diversion chambers, and the diversion chamber is connected with each of the water diversion chambers through the corresponding diversion ports.

[0018] In one embodiment, the water diversion chamber includes an inner cylinder and an outer cylinder which are arranged inside and outside, a water inlet chamber is formed between the inner cylinder and the outer cylinder, a water outlet chamber connected to the water inlet chamber is formed inside the inner cylinder, the connecting port is arranged on the bottom wall of the inner cylinder, the diversion port is arranged on the bottom of the corresponding side wall of the outer cylinder, the water inlet chamber is connected to the diversion chamber via the diversion port, and the solenoid valve is used to seal the inner cylinder.

[0019] In one embodiment, two water diversion chambers are provided, and the flow diversion chamber is provided between two adjacent water diversion chambers.

[0020] In one of the embodiments, a plurality of connection ears for mounting the solenoid valve are provided at intervals on the circumference of the outer wall of the outer cylinder, and a positioning step for positioning the solenoid valve is provided on the circumference of the inner wall of the outer cylinder.

[0021] In one of the embodiments, the bypass channel is arranged at an angle to the water inlet channel.

[0022] The above second technical problem is solved by the following technical solution:

[0023] A gas water heater comprises a three-way valve assembly.

[0024] Compared with the background technology, the gas water heater described in the utility model has the following beneficial effects: by controlling the opening and closing of different numbers of connecting ports through the solenoid valve, different flows of water can be controlled to flow out of the bypass outlet, thereby realizing the adjustment of the bypass mixed water flow, which can effectively improve the constant temperature effect of the water outlet in the application scenarios such as the fluctuation of the water use environment and the secondary start and stop of the water heater, and improve the constant temperature performance of the gas water heater. By controlling the solenoid valve to close the connecting port of each water distribution chamber, the water flow in the water inlet channel cannot enter the bypass channel through the connecting port of the water distribution chamber, thereby realizing the complete closure of the bypass channel and ensuring the constant temperature performance of the gas water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is an exploded schematic diagram of a three-way valve assembly according to an embodiment of the utility model;

[0027] Figure 2 This is a structural schematic diagram of a three-way valve assembly according to an embodiment of the utility model;

[0028] Figure 3 A cross-sectional view of a three-way valve assembly according to an embodiment of the utility model;

[0029] Figure 4 A cross-sectional view of a three-way valve assembly along the axial direction of a bypass channel according to an embodiment of the utility model;

[0030] Figure 5 A cross-sectional view of a three-way valve assembly along the axial direction of a water inlet channel according to an embodiment of the utility model;

[0031] Figure 6 A cross-sectional view of a three-way valve assembly in a first state according to an embodiment of the utility model;

[0032] Figure 7 A cross-sectional view of a three-way valve assembly in a second state according to an embodiment of the utility model;

[0033] Figure 8 It is a cross-sectional view of a three-way valve assembly in a third state according to an embodiment of the utility model;

[0034] Fig. 9 It is a cross-sectional view of a three-way valve assembly according to an embodiment of the utility model in a fourth state.

[0035] Description of reference numerals:

[0036] 1. Valve body; 101. Water inlet channel; 1011. Water inlet; 1012. Water outlet; 102. Bypass channel; 1021. Bypass outlet; 103. Water diversion chamber; 1031. Connecting port; 1032. Inner cylinder; 1033. Water inlet chamber; 1034. Water outlet chamber; 1035. Outer cylinder; 104. Diversion chamber; 1041. Diversion port; 105. Connecting ear; 106. Positioning step; 2. Solenoid valve; 3. Water flow assembly; 4. Hall assembly; 5. Temperature sensor; 6. Fastening retaining ring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the related art, some three-way valves use a stepper motor to drive the connecting rod to move back and forth. The movement process drives the valve core to move to change the water flow rate of the water outlet and the bypass outlet, thereby achieving the purpose of adjusting the bypass water ratio. However, the driving process of the stepper motor takes a long time. It takes about 4 seconds for the three-way valve to adjust to the required bypass water ratio. This time period affects the stability of the water outlet temperature of the water heater. In addition, the stepper motor drives the valve core to move to adjust the water path ratio, and there is a relative movement between the stepper motor and the valve body. There is a gap between the two, which makes it difficult to completely close the water flow in the bypass channel. When the water heater needs to be heated quickly, the water flow in the bypass channel will affect the heating efficiency of the gas water heater.

[0042] In order to solve the above technical problems, the following Figures 1 to 9 , describing an embodiment of the utility model.

[0043] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 9 As shown, a three-way valve assembly is provided, including a valve body 1 and a solenoid valve 2.

[0044] Specifically, Figure 3As shown, a water inlet channel 101, a bypass channel 102 and a water diversion chamber 103 are provided in the valve body 1. There are at least two water diversion chambers 103. One end of the water inlet channel 101 forms a water inlet 1011, and the other end forms a water outlet 1012. One end of the bypass channel 102 is closed, and the other end forms a bypass outlet 1021.

[0045] Specifically, Figure 3 As shown, each water diversion chamber 103 is communicated with the water inlet channel 101 , and each water diversion chamber 103 is provided with a communication port 1031 , and each water diversion chamber 103 is communicated with the bypass pipe through the corresponding communication port 1031 .

[0046] Specifically, the solenoid valves 2 are arranged in one-to-one correspondence with the water-dividing chambers 103 , and each solenoid valve 2 is used to control the opening and closing of the corresponding communication port 1031 .

[0047] Taking the gas water heater as an example, the three-way valve assembly connects the water outlet 1012 of the three-way valve assembly to the water tank of the gas water heater, the water inlet 1011 to the external water inlet pipe, and the bypass outlet 1021 to the bypass pipe in the gas water heater. When the bypass water mixing function is needed, the solenoid valve 2 is controlled to open the corresponding connecting port 1031, and the water flow of the external water inlet pipe enters the water inlet channel 101 from the water inlet 1011, wherein a part of the water flow flows out from the water outlet 1012 along the water inlet channel 101, and the other part of the water flow flows into the corresponding water diversion chamber 103 from the water inlet channel 101. Since the connecting port 1031 of the water diversion chamber 103 is in an open state, the water flow in the water diversion chamber 103 flows into the bypass channel 102 through the connecting port 1031, and flows out from the bypass outlet 1021 along the bypass channel 102, thereby realizing bypass water mixing.

[0048] At the same time, since the valve body 1 is provided with at least two water distribution chambers 103, the opening and closing of different numbers of connecting ports 1031 are controlled by the solenoid valve 2 to control different flow rates of water to flow out of the bypass outlet 1021, thereby realizing the regulation of the bypass mixed water flow rate, which can effectively improve the constant temperature effect of the water outlet of the gas water heater in application scenarios such as fluctuations in the water use environment and secondary start and stop of the gas water heater, and improve the constant temperature performance of the gas water heater.

[0049] When the bypass water mixing function is not needed, the solenoid valve 2 can be controlled to close the communication port 1031 of each water diversion chamber 103, so that after the water flow from the external water inlet pipe enters the water inlet channel 101 from the water inlet 1011, the water flow in the water inlet channel 101 flows out from the water outlet 1012. At this time, the water flow in the water inlet channel 101 cannot enter the bypass channel 102 through the communication port 1031 of the water diversion chamber 103, thereby achieving complete closure of the bypass channel 102.

[0050] In addition, the three-way valve assembly adopts the electromagnetic valve 2 to control the opening and closing of the communication port 1031. The structure of the electromagnetic valve 2 is relatively simple, so that it can be installed on the water distribution chamber 103 to achieve sealing with the water distribution chamber 103. At the same time, there is no relative movement between the electromagnetic valve 2 and the valve body 1, and there is no gap problem caused by the relative movement with the valve body 1, which can better achieve the complete closure of the water flow of the bypass channel 102. The electromagnetic valve 2 has a short action time, and can switch to the corresponding bypass water ratio within a time of less than 0.1s after receiving the action signal, and can quickly respond to the gas water heater's adjustment requirements for the bypass water ratio, solving the problem that the existing water three-way valve has a long adjustment time, resulting in unstable water outlet temperature of the water heater, and ensuring the stability of the water outlet temperature. At the same time, the electromagnetic valve 2 is low in cost, much lower than the driving mechanism such as the stepping motor, so that the cost of the three-way valve assembly is low, which is conducive to the promotion and application in gas water heaters and other equipment.

[0051] Specifically, the plurality of water diversion chambers 103 may be arranged side by side on the bypass channel 102 , or may be arranged around the bypass channel 102 . In the embodiment of the present application, the distribution of the plurality of water diversion chambers 103 is not specifically limited.

[0052] Specifically, any number of the water diversion chambers 103 may be two, three, or the like. In the embodiment of the present application, the number of the water diversion chambers 103 is not specifically limited.

[0053] Specifically, the communication port 1031 can be set to any shape such as a circular hole, a square hole, etc. In the embodiment of the present application, the shape of the communication port 1031 is not specifically limited.

[0054] Specifically, one communication port 1031 may be provided in each water diversion chamber 103 , or a plurality of communication ports 1031 may be provided. In the embodiment of the present application, the number of the communication ports 1031 in the water diversion chamber 103 is not specifically limited.

[0055] Specifically, the solenoid valve 2 can be controlled by a controller, and the controller can control the opening or closing of the corresponding solenoid valve 2 according to the detected water temperature or water flow.

[0056] Specifically, the solenoid valve 2 may be a pilot-operated solenoid valve. In the embodiment of the present application, the type of the solenoid valve 2 is not limited.

[0057] Specifically, the valve body 1 may be formed in one piece using a high temperature resistant material. For example, the material of the valve body 1 may be PPS or PPA.

[0058] In one embodiment, Figure 3 and Figure 4 As shown, the opening area of ​​at least one communication opening 1031 is different from the opening areas of the other communication openings 1031 .

[0059] Since the opening areas of at least two connecting ports 1031 are different, when the opening and closing combinations of different connecting ports 1031 are controlled by the solenoid valve 2, more different bypass flow adjustment levels can be obtained, so that when dealing with different working conditions, the bypass mixed water flow can be controlled more accurately, further improving the water outlet constant temperature effect of the gas water heater under various complex situations.

[0060] The connecting ports 1031 with different opening areas provide a wider bypass flow adjustment range. In some special water use scenarios, such as extremely low or high inlet water temperature, extremely large or extremely small water flow, etc., a wider bypass flow adjustment capability is required to ensure the stability of the outlet water temperature. The difference in opening area allows adjustment within a larger flow range, adapting to more diverse usage environments, and improving the adaptability and stability of the gas water heater.

[0061] For example, when only the communication port 1031 with a small opening area is opened, the bypass flow rate may be significantly different compared with opening both the communication ports 1031 with a small opening area and the communication ports 1031 with a large opening area.

[0062] In one embodiment, Figure 3 and Figure 4 As shown, the total opening area of ​​the plurality of communication ports 1031 is smaller than the cross-sectional area of ​​the bypass channel 102 .

[0063] When multiple communication ports 1031 are opened at the same time to transfer water to the bypass channel 102, the total area of ​​the communication ports 1031 is controlled to be smaller than the cross-sectional area of ​​the bypass channel 102, so that the water flow can enter the bypass channel 102 more smoothly, ensuring the stability of the bypass water flow, which is conducive to more accurate control of the mixing ratio during the bypass water mixing process, thereby improving the stability and accuracy of the water outlet temperature of the water heater. If the total area of ​​the communication ports 1031 is too large or even exceeds the cross-sectional area of ​​the bypass channel 102, it may cause too much water to enter the bypass channel 102 from the communication ports 1031, and the bypass channel 102 cannot discharge the water in time.

[0064] Specifically, the cross-sectional area of ​​the bypass channel 102 may be understood as the area of ​​the cross section perpendicular to the water flow direction of the bypass channel 102 .

[0065] In one embodiment, Figure 3 and Figure 4 As shown, at least two water diversion chambers 103 are arranged side by side on the bypass channel 102. The communication port 1031 is arranged on the side wall of the bypass channel 102 opposite to the water diversion chamber 103.

[0066] At least two water-dividing chambers 103 are arranged side by side on the bypass channel 102, so that the structure of the entire three-way valve assembly is more compact, which is particularly suitable for the case where the internal space of the gas water heater is limited. At the same time, the connecting port 1031 is arranged on the side wall of the bypass channel 102 to facilitate the coordination with the internal structure of the water-dividing chamber 103, making the water connection more concise and direct, reducing unnecessary pipe turns and complex connections, reducing water flow resistance, and helping to improve the efficiency of the water system.

[0067] In one embodiment, Figure 3 and Figure 4 As shown, a flow diversion chamber 104 is further provided in the valve body 1, and the flow diversion chamber 104 is communicated with the water inlet channel 101. A plurality of flow diversion ports 1041 are provided on the side wall of the flow diversion chamber 104, and the plurality of flow diversion ports 1041 are arranged one by one corresponding to the water diversion chambers 103. Each water diversion chamber 103 is communicated with the flow diversion chamber 104 via the corresponding flow diversion port 1041.

[0068] A diversion chamber 104 is arranged in the valve body 1, and the diversion chamber 104 provides an intermediate buffer and distribution area for the water flow of the water inlet channel 101, and evenly distributes the water flow to each water diversion chamber 103 through the diversion port 1041. Compared with direct diversion from the water inlet channel 101 to the water diversion chamber 103, the amount of water entering each water diversion chamber 103 can be more accurately controlled. When adjusting the bypass mixed water ratio, a more stably regulated water flow is supplied to the bypass channel 102, further improving the accuracy of bypass flow regulation and improving the constant temperature performance of the water heater.

[0069] The water flow is evenly distributed through the diversion chamber 104, which reduces the impact of excessive local water flow on components such as the diversion chamber 103 and the connecting port 1031, thereby extending the service life of the three-way valve assembly.

[0070] Specifically, the diversion chamber 104 can be set to any existing shape. For example, the diversion chamber 104 can be set to a semicircular chamber, a cylindrical chamber, etc. In the embodiment of the present application, the shape of the diversion chamber 104 is not specifically limited.

[0071] For example, Figure 3 As shown, if two water diversion chambers 103 are provided in the valve body 1 , the two water diversion chambers 103 can be respectively disposed on opposite sides of the flow diversion chamber 104 .

[0072] In one embodiment, Figure 3 and Figure 4As shown, each water-dividing chamber 103 includes an inner cylinder 1032 and an outer cylinder 1035 which are arranged inside and outside. A water inlet chamber 1033 is formed between the inner cylinder 1032 and the outer cylinder 1035, and a water outlet chamber 1034 is formed inside the inner cylinder 1032, and the water outlet chamber 1034 is connected with the water inlet chamber 1033. A connecting port 1031 is arranged on the bottom wall of the inner cylinder 1032. A diverter port 1041 is arranged at the bottom of the side wall corresponding to the outer cylinder 1035. The water inlet chamber 1033 is connected with the diverter chamber 104 through the diverter port 1041, and the solenoid valve 2 is used to block the inner cylinder 1032.

[0073] The water first enters the water inlet chamber 1033 between the inner cylinder 1032 and the outer cylinder 1035, and then enters the water outlet chamber 1034 of the inner cylinder 1032 after a certain buffer, and finally flows into the bypass channel 102 through the connecting port 1031. By setting the inner cylinder 1032 and the outer cylinder 1035, the water flow can be well regulated and stabilized at each stage, avoiding the water flow impact and uneven distribution that may be caused by direct water inflow. In the water inlet chamber 1033, the water flow can be evenly dispersed in a larger space, reducing the situation of local flow velocity being too fast or too slow, and then enters the water outlet chamber 1034 in a more stable state, and finally enters the bypass channel 102, which helps to improve the uniformity of the water flow during bypass mixing, thereby improving the stability of the water outlet temperature of the water heater.

[0074] The sleeve structure of the inner cylinder 1032 and the outer cylinder 1035 facilitates arrangement and installation in the valve body 1, thereby reducing the production cost of the three-way valve assembly.

[0075] In addition, since the connecting port 1031 is arranged on the bottom wall of the inner cylinder 1032 , it can effectively ensure that all water entering the water outlet chamber 1034 flows smoothly into the bypass channel 102 through the connecting port 1031 without hindrance, thereby eliminating the possibility of residual water in the water outlet chamber 1034 .

[0076] The diversion port 1041 is set at the bottom of the outer cylinder 1035. When the solenoid valve 2 opens the corresponding connecting port 1031, the water in the diversion chamber 104 flows into the water inlet chamber 1033 from the diversion port 1041 at the bottom of the outer cylinder 1035, so that the water flow entering the water inlet chamber 1033 can be buffered to a certain extent, and then the water flows from the water inlet chamber 1033 into the water outlet chamber 1034, ensuring that the water flow entering the water outlet chamber 1034 can be more stable and uniform, laying a good foundation for subsequent water flow regulation and bypass water mixing.

[0077] Specifically, the inner cylinder 1032 and the outer cylinder 1035 can both be configured as cylindrical cylinder structures, so that the inner walls of the water outlet chamber 1034 and the water inlet chamber 1033 are arc-shaped, which can effectively buffer the water flow entering the water outlet chamber 1034 and the water inlet chamber 1033.

[0078] Specifically, the connection between the water outlet chamber 1034 and the water inlet chamber 1033 can be achieved through the opening at the top of the inner cylinder 1032. When the water flows into the water inlet chamber 1033, the water level in the water inlet chamber 1033 gradually rises. When the water level in the water inlet chamber 1033 reaches the top of the inner cylinder 1032, the water flow in the water inlet chamber 1033 will enter the water outlet chamber 1034 through the opening at the top of the inner cylinder 1032.

[0079] Specifically, the electromagnetic valve 2 can control the opening and closing of the top opening of the inner cylinder 1032 to achieve the opening and closing of the communication port 1031 controlled by the electromagnetic valve 2 .

[0080] Specifically, the diversion opening 1041 can be set in any shape such as a circular hole, a semicircular hole or a square hole. In the embodiment of the present application, the shape of the diversion opening 1041 is not specifically limited.

[0081] In one embodiment, Figure 3 and Figure 4 As shown, two water diversion chambers 103 are provided, and the flow diversion chamber 104 is provided between two adjacent water diversion chambers 103 .

[0082] The diversion chamber 104 is arranged between the two water diversion chambers 103, making the structure of the entire three-way valve assembly more compact. At the same time, the diversion chamber 104 is conveniently connected to the two water diversion chambers 103, reducing unnecessary pipe turns and complex connections, which is conducive to improving the efficiency of the water system.

[0083] Since the two water diversion chambers 103 are respectively arranged on both sides of the diversion chamber 104, when the solenoid valves 2 corresponding to the two water diversion chambers 103 are both in the open state, the water flow in the diversion chamber 104 can flow evenly into the water diversion chambers 103 on both sides.

[0084] In addition, the two water-dividing chambers 103 are easier to realize during the processing of the valve body 1, which facilitates the use of standardized processing technology and improves production efficiency.

[0085] Specifically, Figure 3 Taking the up and down directions in as an example, the two water diversion chambers 103 can be arranged above the side wall of the bypass channel 102. Since the connecting port 1031 is opened on the side wall of the bypass channel 102, after the water flows into the water diversion chamber 103, the water flows directly into the bypass channel 102 through the connecting port 1031 under the action of gravity.

[0086] In one embodiment, Figure 3 As shown, a plurality of connecting ears 105 are provided at intervals on the outer wall circumference of the outer cylinder 1035, and the connecting ears 105 are used to install the electromagnetic valve 2. A positioning step 106 is provided on the inner wall circumference of the outer cylinder 1035, and the positioning step 106 is used to position the electromagnetic valve 2.

[0087] By connecting the solenoid valve 2 with the plurality of connecting ears 105 with fasteners, the solenoid valve 2 is firmly mounted on the outer cylinder 1035, and the solenoid valve 2 is not displaced or loosened during operation. At the same time, during the installation process, the positioning step 106 accurately positions the solenoid valve 2, so that the solenoid valve 2 can be accurately installed on the outer cylinder 1035, reducing the adjustment and calibration time during the assembly process and improving production efficiency.

[0088] In one embodiment, Figure 2 and Figure 3 As shown, the bypass channel 102 is arranged at an angle with the water inlet channel 101 .

[0089] Inside the gas water heater, the space is limited and the layout of each component needs to be compact and reasonable. The bypass channel 102 and the water inlet channel 101 are arranged at an angle to better adapt to the space limitation, making the structural design of the valve body 1 and the entire water system more flexible. By arranging the bypass channel 102 and the water inlet channel 101 at an angle, spatial interference between components can be avoided, the space utilization rate can be improved, and the miniaturization design and overall structural optimization of the product are facilitated.

[0090] Specifically, Figure 1 As shown, the three-way valve assembly also includes a water flow assembly 3 and a Hall assembly 4. The water flow assembly 3 is installed in the water inlet channel 101 and close to one end of the water inlet 1011. The water flow assembly 3 is installed in the water inlet channel 101 by tightening the retaining ring 6. The water flow assembly 3 and the Hall assembly 4 are used to detect the size of the water flow of the water inlet channel 101 at the water inlet 1011, and send the detection data to the controller. The controller can control the opening and closing of the solenoid valve 2 according to the received detection data.

[0091] Specifically, Figure 1 and Figure 2 As shown, it also includes a temperature sensor 5, which is used to detect the water flow temperature of the water inlet channel 101 at the water inlet 1011 and send the detected temperature information to the controller. The controller can control the opening and closing of the solenoid valve 2 according to the received temperature information.

[0092] The working principle of the three-way valve assembly in this embodiment is described as follows:

[0093] like Figure 6 As shown, in the first state of the three-way valve assembly, the two solenoid valves 2 are both in the closed state, and after the water flow from the external water inlet pipe enters the water inlet channel 101 from the water inlet 1011, the water flow in the water inlet channel 101 flows out from the water outlet 1012. At this time, the water flow in the water inlet channel 101 cannot enter the bypass channel 102 through the connecting port 1031 of the water diversion chamber 103, and the bypass water ratio is 0%.

[0094] like Figure 7 As shown, in the second working state of the three-way valve assembly, the electromagnetic valve 2 on the left is in a closed state, and the electromagnetic valve 2 on the right is in an open state. While the water flow maintains the path of the first working state, the water flow in the diverter chamber 104 flows into the water inlet chamber 1033 of the right water diverter chamber 103 through the diverter port 1041, and then the water flow in the water inlet chamber 1033 flows into the water outlet chamber 1034, and finally flows into the bypass channel 102 through the connecting port 1031 and flows out from the bypass outlet 1021 along the bypass channel 102. In this state, the bypass channel 102 is in a working state, and the proportion of bypass water is determined by the cross-sectional area ratio of the connecting port 1031 corresponding to the right water diverter chamber 103 and the water inlet channel 101. When the cross-sectional area of ​​the water inlet channel 101 is constant, the proportion of bypass water can be changed by changing the opening area of ​​the connecting port 1031 corresponding to the right water diverter chamber 103, for example, the proportion of bypass water is 15%.

[0095] like Figure 8 As shown, in the third working state of the three-way valve assembly, the electromagnetic valve 2 on the left is in an open state, and the electromagnetic valve 2 on the right is in a closed state. While the water flow maintains the path of the first working state, the water flow in the diverter chamber 104 flows into the water inlet chamber 1033 of the left water diverter chamber 103 through the diverter port 1041, and then the water flow in the water inlet chamber 1033 flows into the water outlet chamber 1034, and finally flows into the bypass channel 102 through the connecting port 1031 and flows out from the bypass outlet 1021 along the bypass channel 102. In this state, the bypass channel 102 is in a working state, and the proportion of bypass water is determined by the cross-sectional area ratio of the connecting port 1031 corresponding to the left water diverter chamber 103 and the water inlet channel 101. When the cross-sectional area of ​​the water inlet channel 101 is constant, the proportion of bypass water can be changed by changing the opening area of ​​the connecting port 1031 corresponding to the left water diverter chamber 103, for example, the proportion of bypass water is 30%.

[0096] like Fig. 9 As shown, in the fourth working state of the three-way valve assembly, both solenoid valves 2 are in the open state, and the water flow state is a combination of the second working state and the third working state. In this state, the bypass channel 102 is in the working state, and the proportion of bypass water is determined by the ratio of the sum of the opening areas of the two communication ports 1031 to the cross-sectional area of ​​the water inlet channel 101. When the cross-sectional area of ​​the water inlet channel 101 is constant, the proportion of bypass water can be changed by changing the sum of the opening areas of the two communication ports 1031, for example, the proportion of bypass water is 45%.

[0097] According to an embodiment of the present utility model, on the other hand, a gas water heater is provided, comprising a three-way valve assembly.

[0098] This gas water heater controls the opening and closing of different numbers of connecting ports 1031 through the solenoid valve 2 to control different flows of water to flow out of the bypass outlet 1021, thereby realizing the regulation of the bypass mixed water flow, which can effectively improve the constant temperature effect of the water outlet in application scenarios such as fluctuations in the water use environment and secondary start and stop of the water heater, and improve the constant temperature performance of the gas water heater. By controlling the solenoid valve 2 to close the connecting port 1031 of each water distribution chamber 103, the water flow in the water inlet channel 101 cannot enter the bypass channel 102 through the connecting port 1031 of the water distribution chamber 103, thereby completely closing the bypass channel 102 and ensuring the constant temperature performance of the gas water heater.

[0099] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A three-way valve assembly, characterized in that: include: A valve body (1) is provided with a water inlet channel (101), a bypass channel (102) and at least two water diversion chambers (103); two ends of the water inlet channel (101) respectively form a water inlet (1011) and a water outlet (1012); each of the water diversion chambers (103) is in communication with the water inlet channel (101); each of the water diversion chambers (103) is provided with a communication port (1031); each of the water diversion chambers (103) is in communication with the bypass channel (102) via the corresponding communication port (1031); one end of the bypass channel (102) is closed, and the other end forms a bypass outlet (1021); The solenoid valve (2) is arranged in one-to-one correspondence with the water diversion chamber (103), and is used to control the opening and closing of the corresponding communication port (1031).

2. The three-way valve assembly according to claim 1, characterized in that: The opening area of ​​at least one of the communication openings (1031) is different from the opening areas of the other communication openings (1031).

3. The three-way valve assembly according to claim 2, characterized in that: The sum of the opening areas of the plurality of communication ports (1031) is smaller than the cross-sectional area of ​​the bypass channel (102).

4. The three-way valve assembly according to claim 1, characterized in that: At least two of the water diversion chambers (103) are arranged side by side on the bypass channel (102), and the communication port (1031) is opened on the side wall of the bypass channel (102) opposite to the water diversion chamber (103).

5. The three-way valve assembly according to any one of claims 1 to 4, characterized in that: The valve body (1) is further provided with a flow diversion chamber (104) in communication with the water inlet channel (101); a side wall of the flow diversion chamber (104) is provided with flow diversion openings (1041) arranged one-to-one in correspondence with the water diversion chambers (103); the flow diversion chamber (104) is in communication with each of the water diversion chambers (103) via the corresponding flow diversion openings (1041).

6. The three-way valve assembly according to claim 5, characterized in that: The water diversion chamber (103) comprises an inner cylinder (1032) and an outer cylinder (1035) which are arranged inside and outside each other; a water inlet chamber (1033) is formed between the inner cylinder (1032) and the outer cylinder (1035); a water outlet chamber (1034) which is connected to the water inlet chamber (1033) is formed inside the inner cylinder (1032); the communication port (1031) is arranged on the bottom wall of the inner cylinder (1032); the diversion port (1041) is arranged on the bottom of the corresponding side wall of the outer cylinder (1035); the water inlet chamber (1033) is connected to the diversion chamber (104) via the diversion port (1041); and the solenoid valve (2) is used to block the inner cylinder (1032).

7. The three-way valve assembly according to claim 5, characterized in that: Two water diversion chambers (103) are provided, and the flow diversion chamber (104) is provided between two adjacent water diversion chambers (103).

8. The three-way valve assembly according to claim 6, characterized in that: A plurality of connection ears (105) for mounting the solenoid valve (2) are provided at intervals on the circumferential side of the outer wall of the outer cylinder (1035), and a positioning step (106) for positioning the solenoid valve (2) is provided on the circumferential side of the inner wall of the outer cylinder (1035).

9. The three-way valve assembly according to any one of claims 1 to 4, characterized in that: The bypass channel (102) and the water inlet channel (101) are arranged at an angle.

10. A gas water heater, characterized in that: A three-way valve assembly comprising any one of claims 1 to 9.

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