Valve element mechanism and temperature adjusting valve

Abstract

The utility model belongs to the technical field of valves, and particularly discloses a valve element mechanism and a temperature adjusting valve. The temperature adjusting valve comprises a valve body and a valve element mechanism, the valve body comprises a valve element cavity, a cold water communication opening, a hot water communication opening and a mixed water outlet, and the valve element mechanism comprises a mounting base, a valve element part, a driving motor and a detection assembly. One end of the valve element part rotationally penetrates through the mounting base and is provided with a temperature adjusting cavity; the driving motor is mounted on the first side of the mounting base, a motor shaft is connected with the valve element part, and the driving motor drives the valve element part to rotate so as to adjust the communication state of the temperature adjusting cavity with the cold water communication opening and the hot water communication opening. The detection assembly comprises a connecting plate synchronously rotating along with the valve element piece, a magnetic piece installed on the connecting plate and a detection piece installed on the installation base, the connecting plate is located between the motor shaft and the installation base, and the installation base is installed on the second side of the installation base and detects the position of the magnetic piece. According to the utility model, the position of the valve core piece can be accurately detected, and the temperature adjusting precision and reliability of the temperature adjusting valve are improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a valve core mechanism and a temperature regulating valve. Background Technology

[0002] Thermostatic valves are a type of valve commonly used in water heaters. They are typically used to regulate and maintain a constant outlet water temperature. Depending on the method of regulation, thermostatic valves are generally classified into mechanical thermostatic valves and electric thermostatic valves.

[0003] The prior art provides a thermostatic valve, which includes a valve body, a valve core, and a drive motor. The valve body has a mixing chamber and hot water inlet, cold water inlet, and mixed water outlet communicating with the mixing chamber. The valve core is rotatably mounted within a valve core cavity, and the valve core has a hollow cavity and a water inlet communicating with the hollow cavity, which is connected to the mixed water outlet. The drive motor drives the valve core to rotate, thereby adjusting the communication area between the water inlet and the cold and hot water inlets, and thus adjusting the amount of cold and hot water entering the hollow cavity, achieving the purpose of regulating the water temperature within the cavity.

[0004] When setting up a thermostatic valve, the valve core typically has an initial rotational position. The water temperature inside the cavity is controlled by adjusting the rotation angle of the valve core relative to this initial position. To control the rotation angle of the valve core, a cam is also installed on it. A microswitch is located on the mounting bracket of the drive motor. When the valve core rotates until the protrusion of the cam abuts against the contact of the microswitch, the microswitch is triggered, allowing the controller to determine that the valve core is in its initial rotational position.

[0005] The thermostatic valve provided by the existing technology can detect the initial rotation position of the valve core through the cooperation of the cam and the detection sensor. However, because the cam is in contact with the detection sensor, the cam's protrusion is worn or the microswitch contacts are deformed during long-term use, which reduces the detection accuracy and affects the long-term use of the thermostatic valve. Utility Model Content

[0006] One of the technical problems solved by this utility model is to provide a valve core mechanism that can effectively solve the problem that the detection structure on the existing temperature control valve is prone to wear or deformation during the detection process, resulting in reduced detection accuracy, and improve the long-term operational reliability of the valve core mechanism.

[0007] The second technical problem solved by this utility model is to provide a temperature control valve that can effectively solve the problem of low accuracy in detecting the position of the valve core in existing temperature control valves, thereby improving the control accuracy of the temperature control valve.

[0008] The first technical problem mentioned above is solved by the following technical solution:

[0009] A valve core mechanism is provided for engaging with a valve core cavity on a valve body. The valve core cavity has a cold water inlet, a hot water inlet, and a mixing outlet communicating with the valve core cavity. The valve core mechanism includes:

[0010] The mounting base has a first side and a second side that are arranged opposite to each other;

[0011] A valve core is located on the second side of the mounting base, one end of the valve core rotates through the mounting base, and the valve core has a temperature regulating cavity for communicating with the mixing outlet;

[0012] A drive motor is installed on the first side of the mounting base and the motor shaft is connected to the valve core. The drive motor drives the valve core to rotate so as to adjust the connection state between the temperature regulating chamber and the cold water connection port and the hot water connection port.

[0013] The detection assembly includes a connecting plate that rotates synchronously with the valve core, a magnetic component mounted on the connecting plate, and a detection component mounted on the mounting base. The connecting plate is located between the motor shaft and the mounting base, and the detection component detects the position of the magnetic component.

[0014] Compared with the prior art, the valve core mechanism described in this utility model has the following advantages: By setting a magnetic component that rotates with the valve core component and setting a detection component on the mounting base to detect the position of the magnetic component, the detection component can detect the rotational position and initial position of the valve core component by detecting the position of the magnetic component, which is beneficial for controlling the operation of the drive motor and ensuring the operating accuracy and reliability of the valve core mechanism; at the same time, setting the connecting plate between the mounting base and the end face of the drive motor can avoid the setting of the connecting plate affecting the installation of the mounting base on the valve body; furthermore, by setting the magnetic component and the detection component to cooperate in detection, non-contact detection can be achieved, effectively avoiding the influence of subsequent wear or deformation, thereby ensuring the accuracy of detection.

[0015] In one embodiment, a rotating groove is provided on the first side of the mounting base, the connecting plate is rotatably accommodated in the rotating groove, and the connecting plate is located between the end face of the motor shaft and the bottom of the rotating groove;

[0016] And / or, a mounting groove is provided on the second side of the mounting base, and the detection element is accommodated in the mounting groove;

[0017] And / or, the connecting plate is provided with a receiving groove, and the magnetic component is received in the receiving groove.

[0018] In one embodiment, the rotating groove has two limiting groove walls disposed opposite to each other in the circumferential direction of the motor shaft, and the connecting plate is rotatably limited between the two limiting groove walls;

[0019] And / or, the connecting plate includes a circular plate portion and an extension arm portion extending radially outward along the circular plate portion, the circular plate portion being coaxially sleeved on the valve core component, and the magnetic component being mounted on the extension arm portion.

[0020] In one embodiment, the rotating groove includes a circular groove portion and a limiting groove portion that are connected. The circular plate portion is coaxially disposed in the circular groove portion, and the extension arm portion is movably disposed in the limiting groove portion. The opposite side groove walls of the limiting groove portion form the limiting groove wall.

[0021] In one embodiment, the circumferential sidewall of the valve core is cut with a positioning plane, and the connecting plate is provided with a connecting hole for the valve core to pass through. The hole wall of the connecting hole has a flat wall surface, and the flat wall surface fits with the positioning plane.

[0022] And / or, the valve core is provided with a circumferentially protruding rib, the rib extending along the axial direction of the valve core, the wall of the connecting hole has a groove, the groove is provided corresponding to the rib, and the rib is inserted into the groove.

[0023] In one embodiment, the opposite sides of the mounting groove are provided with snap-fit ​​portions, and the detection element is snapped between the snap-fit ​​portions on both sides.

[0024] And / or, the mounting base has a wire-passing port on its periphery that communicates with the mounting groove.

[0025] In one embodiment, the snap-fit ​​portion has a connected guide slope and a limiting surface on the side facing the inside of the mounting groove. The limiting surfaces of the snap-fit ​​portions on both sides are parallel and spaced apart. The guide slope is connected to the side of the limiting surface away from the bottom of the mounting groove, and the guide slope is inclined in the direction away from the bottom of the mounting groove and away from the inside of the mounting groove.

[0026] And / or, the bottom of the mounting groove is provided with a bottom limiting protrusion, and the housing of the detection element abuts against the bottom limiting protrusion.

[0027] In one embodiment, the motor housing end face of the drive motor is provided with abutting protrusions, and a plurality of abutting protrusions are provided at circumferential intervals along the motor shaft, and the abutting protrusions abut against the mounting base.

[0028] In one embodiment, the device further includes a valve sleeve having a separate cold water inlet and a hot water inlet, one end of which is fixedly mounted to a second side of the mounting base.

[0029] The valve core is rotatably installed inside the valve sleeve, and the valve core has a temperature regulating cavity inside. The side wall of the valve core has a temperature regulating water inlet communicating with the temperature regulating cavity. The rotation of the valve core adjusts the communication area between the temperature regulating water inlet and the cold water inlet and the hot water inlet.

[0030] The second technical problem mentioned above is solved by the following technical solution:

[0031] A temperature regulating valve includes a valve body having a valve core cavity, the valve body having a cold water inlet, a hot water inlet, and a mixing outlet communicating with the valve core cavity, and further including a valve core mechanism as described above, a mounting base being mounted on the valve body and a drive motor being located outside the mounting base, the valve core being inserted into the valve core cavity, the rotation of the valve core adjusting the communication state between the temperature regulating cavity and the cold water inlet and the hot water inlet, and the temperature regulating cavity communicating with the mixing outlet.

[0032] Compared with the prior art, the temperature control valve of this utility model has the following advantages: by adopting the above-mentioned valve core mechanism, the detection accuracy of the valve core component of the temperature control valve can be improved, thereby improving the water temperature regulation accuracy of the temperature control valve, improving long-term performance, and enhancing the user experience of the temperature control valve. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the temperature control valve provided in an embodiment of the present utility model;

[0034] Figure 2 A schematic diagram showing the disassembled structure of the temperature control valve provided in this embodiment of the utility model;

[0035] Figure 3 This is a schematic diagram of the valve core component provided in an embodiment of the present utility model;

[0036] Figure 4 A schematic diagram of the valve sleeve provided in an embodiment of this utility model;

[0037] Figure 5 A cross-sectional view of the temperature control valve provided in an embodiment of this utility model;

[0038] Figure 6 for Figure 5 A magnified view of a section at point I;

[0039] Figure 7 A schematic diagram of the connecting plate provided in an embodiment of this utility model;

[0040] Figure 8 A schematic diagram of the temperature control valve provided in this embodiment of the present utility model after removing the drive motor;

[0041] Figure 9A schematic diagram of the mounting base provided in an embodiment of this utility model from one perspective;

[0042] Figure 10 This is a structural schematic diagram of the mounting base provided in an embodiment of the present utility model from another perspective.

[0043] Label Explanation:

[0044] 1. Valve core module; 11. Valve core component; 111. Adjusting shaft; 1111. Adjusting part; 1112. Sealing part; 1113. Temperature regulating chamber; 1114. Temperature regulating water inlet; 1114a. Cold water inlet; 1114b. Hot water inlet; 112. Connecting shaft; 1121. Rib; 1122. Positioning plane; 1123. Indicator groove; 12. Valve sleeve; 121. Cold water inlet; 122. Hot water inlet; 123. Mounting chamber; 1231. Adjusting chamber; 1232. Sealing chamber; 124. Positioning convex ring; 1241. Anti-rotation plane; 13. Mounting sealing ring; 14. Waterproof sealing ring; 15. Inner seal;

[0045] 2. Mounting base; 21. Rotating groove; 211. Circular groove; 212. Limiting groove; 2121. Limiting groove wall; 22. Weight reduction groove; 23. Positioning hole; 24. Reinforcing rib; 25. Mounting groove; 26. Snap-fit ​​part; 261. Limiting surface; 262. Guide slope; 27. Bottom limiting protrusion; 28. Mounting hole;

[0046] 3. Detection component; 31. Connecting plate; 311. Circular plate portion; 312. Extension arm portion; 3121. Accommodating groove; 313. Mounting shaft hole; 3131. Groove portion; 3132. Flat wall surface; 32. Magnetic component; 33. Detection component;

[0047] 4. Drive motor; 41. Motor housing; 42. Motor shaft; 421. Connecting hole; 43. Abutting protrusion; 431. Stud part; 44. Positioning protrusion. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] This embodiment provides a temperature control valve that can be applied to a water heater to adjust the outlet water temperature, improve the adjustment accuracy of the temperature control valve, and enhance the user experience of the water heater.

[0053] The thermostatic valve includes a valve body and a valve core mechanism. The valve body has a valve core cavity, a cold water channel, a mixing water outlet channel, a cold water outlet channel, and a hot water inlet channel. The cold water outlet channel communicates with the cold water channel to supply cold water to the inner tank, and the hot water inlet channel is used for the outflow of hot water from the inner tank. The valve core cavity has a cold water inlet communicating with the cold water channel, a mixing water outlet communicating with the cold water outlet channel, and a hot water inlet communicating with the hot water inlet channel. The valve core mechanism is at least partially located within the valve core cavity and regulates the ratio of cold and hot water entering the valve core mechanism from the cold water inlet and the hot water inlet, thereby regulating the water temperature flowing out of the mixing water outlet channel.

[0054] like Figures 1 to 5As shown, the valve core mechanism includes a mounting base 2, a valve core module 1, and a drive motor 4. The mounting base 2 has a first side and a second side arranged opposite to each other. The valve core module 1 includes a valve core component 11, which is mounted on the second side of the mounting base 2 with one end rotatably passing through the mounting base 2. The valve core component 11 has a temperature-adjusting cavity 1113 for communication with the mixing outlet. The drive motor 4 is mounted on the first side of the mounting base 2, and its motor shaft 42 is connected to the valve core component 11. The drive motor 4 drives the valve core component 11 to rotate, thereby adjusting the communication state between the temperature-adjusting cavity 1113 and the cold water and hot water inlets. The detection component 3 includes a connecting plate 31 that rotates synchronously with the valve core component 11, a magnetic component 32 mounted on the connecting plate 31, and a detection component 33 mounted on the mounting base 2. The connecting plate 31 is located between the motor shaft 42 and the mounting base 2, and the detection component 33 detects the position of the magnetic component 32.

[0055] The valve core cavity extends through one side of the valve body to form an installation port. The mounting base 2 is installed at the installation port and located on the outside of the valve body. The valve core component 11 is rotatably disposed within the valve core cavity, and the temperature regulating cavity 1113 is connected to the mixing outlet. The drive motor 4 is located outside the valve body and on the side of the mounting base 2 away from the mounting base 2. When the drive motor 4 drives the valve core component 11 to rotate, it adjusts the communication area between the cold water connection port and the hot water connection port and the temperature regulating cavity 1113, thereby adjusting the amount of cold water and hot water entering the temperature regulating cavity 1113, adjusting the temperature of the water in the temperature regulating cavity 1113, and thus adjusting the outlet temperature of the water flowing out of the mixing outlet channel.

[0056] In this embodiment, the valve core mechanism further includes a detection component 3. The detection component 3 includes a connecting plate 31 sleeved on the valve core 11, a magnetic component 32 mounted on the connecting plate 31, and a detection component 33 mounted on the mounting base 2. The connecting plate 31 is located between the end face of the drive motor 4 and the mounting base 2 and is fixed in the circumferential direction relative to the valve core 11. The detection component 33 is mounted on the second side of the mounting base 2. The detection component 33 detects the installation position of the magnetic component 32.

[0057] The valve core mechanism provided in this embodiment includes a magnetic component 32 that rotates with the valve core component 11, and a detection component 33 on the mounting base 2 for detecting the position of the magnetic component 32. This allows the detection component 33 to detect the rotational position and initial position of the valve core component 11 by detecting the position of the magnetic component 32, facilitating control of the drive motor 4 and ensuring the operational accuracy and reliability of the valve core mechanism. Simultaneously, the connection plate 31 is positioned between the mounting base 2 and the end face of the drive motor 4, preventing the connection plate 31 from affecting the installation of the mounting base 2 on the valve body. Furthermore, the combination of the magnetic component 32 and the detection component 33 enables non-contact detection, effectively avoiding the effects of subsequent wear or deformation, thus ensuring detection accuracy.

[0058] In one embodiment, the valve core module 1 further includes a valve sleeve 12, which is mounted on the second side and the valve core component 11 is rotatably mounted inside the valve sleeve 12. The valve sleeve 12 has a separated cold water inlet 121 and a hot water inlet 122. The valve sleeve 12 is fixedly and sealed within the valve core cavity, with the cold water inlet 121 communicating with the cold water connection port and the hot water inlet 122 communicating with the hot water connection port. The valve core component 11 defines a temperature regulating cavity 1113, or the valve core component 11 and the valve sleeve 12 enclose a temperature regulating cavity 1113. The rotation of the valve core component 11 adjusts the communication area between the cold water inlet 121 and the hot water inlet 122 and the temperature regulating cavity 1113, thereby adjusting the communication state between the corresponding cold water connection port and the hot water connection port and the temperature regulating cavity 1113. By setting the valve sleeve 12, the modularity of the valve core mechanism is improved, which facilitates the disassembly and replacement of the valve core mechanism on the valve body, improves the sealing structure between the valve core module 1 and the valve body, and reduces the difficulty of fitting the valve core mechanism and the valve body.

[0059] In other embodiments, the valve core 11 can also be directly rotatably installed in the valve core cavity, and the valve core 11 has a temperature regulating cavity 1113 inside. The side wall of the valve core 11 is provided with a temperature regulating water inlet 1114 communicating with the valve core cavity. The rotation of the valve core 11 in the valve core cavity adjusts the communication area between the temperature regulating water inlet 1114 and the hot water connection port and adjusts the communication area between the temperature regulating water inlet 1114 and the cold water connection port.

[0060] In one embodiment, a temperature-regulating cavity 1113 is provided inside the valve core component 11, and a temperature-regulating water inlet 1114 communicating with the valve core cavity is provided on the side wall of the valve core component 11. The rotation of the valve core component 11 adjusts the communication area between the temperature-regulating water inlet 1114 and the cold water inlet 121 and the hot water inlet 122. The temperature-regulating cavity 1113 is open on the side away from the drive motor 4, and the temperature-regulating cavity 1113 is connected to the mixing water outlet through the open end. Setting the temperature-regulating cavity 1113 inside the valve core component 1 simplifies the structure of the valve core module 1 and improves the temperature regulation accuracy.

[0061] In one embodiment, the valve core 11 has a cold water outlet position where the temperature-adjusting water inlet 1114 is only connected to the cold water inlet 121, a hot water outlet position where the temperature-adjusting water inlet 1114 is only connected to the hot water inlet 122, and a temperature-adjusting position where the temperature-adjusting water inlet 1114 is connected to both the cold water inlet 121 and the hot water inlet 122. When the magnetic component 32 and the detection component 33 are aligned axially in the valve core module 1, the valve core 11 is in the cold water outlet position. The magnetic component 32 and the detection component 33 work together to detect the cold water outlet position, which helps determine the angle at which the valve core component 11 needs to be rotated to adjust to the target temperature, thus improving the control reliability of the valve core mechanism. At the same time, setting the cold water outlet position as the origin position for detection by the magnetic component 32 and the detection component 33 facilitates the reset of the valve core mechanism. This ensures that after the drive motor 4 is reset, the cold water connection port is connected to the temperature control chamber 1113, so that when the valve core mechanism is not in motion, the water flowing out of the mixing water outlet channel is cold water, thereby preventing hot water from scalding the user and improving the safety of the temperature control valve.

[0062] To improve adjustment reliability, in one embodiment, the cold water inlet 121 and the hot water inlet 122 are spaced apart axially along the valve core module 1 and circumferentially spaced apart. Two water-resistant sealing rings 14 are fitted onto the valve sleeve 12. One water-resistant sealing ring 14 is located between the cold water inlet 121 and the hot water inlet 122, and is pressed against the cavity wall of the valve core module to separate the cold water inlet 121 and the hot water inlet 122. The other water-resistant sealing ring 14 is located between the opening of the temperature regulating cavity 1113 and the cold water inlet 121, and the one closest to the opening of the cold water inlet 121, to separate the mixed water from the cold and hot water. In one embodiment, the cold water inlet 121 is located between the hot water inlet 122 and the drive motor 4. In another embodiment, the hot water inlet 122 may be located between the cold water inlet 121 and the drive motor 4.

[0063] This arrangement prevents hot water entering the valve core cavity from the hot water connection port from entering the valve core cavity through the cold water inlet when the valve core component 11 is in the cold water outlet position. It also prevents cold water entering the valve core cavity from the cold water connection port from entering the valve core cavity through the hot water inlet when the valve core component 11 is in the hot water outlet position. This improves the reliability of the separation between the cold water inlet 121 and the hot water connection port, and also improves the reliability of the separation between the hot water inlet 122 and the cold water connection port, thereby improving the temperature regulation accuracy. In other embodiments, the cold water inlet 121 and the hot water inlet 122 can be arranged at the same axial position on the valve core component 11 and spaced apart circumferentially on the valve core component 11.

[0064] Furthermore, a sealing ring 13 is also fitted on the valve sleeve 12 near the drive motor 4. The sealing ring 13 is pressed against the cavity wall of the mounting cavity 123 to achieve a sealed installation of the valve core module 1 in the valve core cavity, preventing water from flowing out from the opening of the valve core cavity.

[0065] In one embodiment, the temperature-adjustable water inlet 1114 includes a cold water inlet 1114a and a hot water inlet 1114b. When the valve core 11 is in the cold water outlet position, the cold water inlet 1114a is directly connected to the cold water inlet 121, and the hot water inlet 1114b is separated from the hot water inlet 122. When the valve core 11 is in the hot water outlet position, the cold water inlet 1114a is circumferentially separated from the cold water inlet 121, and the hot water inlet 1114b is connected to the hot water inlet 122. When the valve core 11 is in the temperature-adjustable position, the cold water inlet 1114a is connected to the cold water inlet 121, and the hot water inlet 122 is connected to the hot water inlet 1114b. Further, the cold water inlets 1114a and 1114b are spaced apart along the axial direction of the valve core 11. In other embodiments, the temperature regulating water inlet 1114 may have only one opening, that is, the temperature regulating water inlet 1114 extends along the axial direction of the valve core 11, so as to ensure that when the valve core 11 is in the temperature regulating water outlet position, the temperature regulating water inlet 1114 is simultaneously connected to the hot water inlet 122 and the cold water inlet 121.

[0066] The inner cavity of the valve sleeve 12 forms a mounting cavity 123 for mounting the valve core 11. In one embodiment, to improve the ease of cooperation between the valve core 11, the valve sleeve 12, and the drive motor 4, the valve core 11 includes an adjusting shaft 111 and a connecting shaft 112 coaxially connected. The adjusting shaft 111 is rotatably mounted in the mounting cavity 123 and has a temperature regulating cavity 1113 and a temperature regulating water inlet 1114. The connecting shaft 112 is connected to the side of the adjusting shaft 111 away from the opening of the temperature regulating cavity 1113 and is located outside the valve sleeve 12. The outer diameter of the adjusting shaft 111 is larger than the diameter of the connecting shaft 112. The connecting shaft 112 passes through the mounting base 2 and is connected to the motor shaft 42. The connecting plate 31 is sleeved on the connecting shaft 112.

[0067] The motor shaft 42 is coaxially provided with a connecting hole 421, and the connecting plate 31 is provided with a mounting shaft hole 313 for the connecting shaft 112 to pass through. In order to improve the connection convenience between the connecting shaft 112 and the motor shaft 42, the surface of the connecting shaft 112 is provided with a protruding rib 1121. The rib 1121 extends along the axial direction of the connecting shaft 112. The shape of the connecting hole 421 is adapted to the cross-sectional shape of the connecting shaft 112, and the shape of the mounting shaft hole 313 is adapted to the cross-sectional shape of the connecting shaft 112. That is, the hole wall of the mounting shaft hole 313 has a groove 3131 adapted to the rib 1121. The rib 1121 is inserted into the groove 3131. This ensures that the connecting shaft 112 and the motor shaft 42 will not move relative to each other in the circumferential direction, thereby ensuring the reliability of the detection of the position of the valve core 11 by the detection element 33, and thus ensuring the reliability of the drive motor 4 to drive the valve core 11. Furthermore, multiple ribs 1121 are provided at intervals along the circumference of the connecting shaft 112 to improve the reliability of the circumferential positioning of the two, that is, the connecting shaft 112 is a spline structure and the connecting hole 421 is a spline hole.

[0068] In one embodiment, the outer side of the connecting shaft 112 is provided with a positioning plane 1122, and the hole wall of the mounting shaft hole 313 has a flat wall surface 3132. The flat wall surface 3132 fits with the positioning plane 1122, thereby enabling the mounting position of the connecting hole 421 and the connecting shaft 112 in the circumferential direction during installation, ensuring installation accuracy, and thus ensuring detection accuracy.

[0069] In one embodiment, the adjusting shaft 111 includes an adjusting part 1111 and a sealing part 1112. A temperature regulating cavity 1113 and a temperature regulating water inlet 1114 are disposed on the adjusting part 1111. The sealing part 1112 is coaxially connected between the adjusting part 1111 and the connecting shaft 112. The outer diameter of the adjusting part 1111, the diameter of the sealing part 1112, and the diameter of the connecting shaft 112 gradually decrease. The adjusting part 1111 has a temperature regulating cavity 1113 and a water inlet 1114, and an inner sealing member 15 is sleeved on the sealing part 1112. The mounting cavity 123 includes an adjusting cavity 1231 and a sealing cavity 1232 that are coaxially connected. The aperture of the sealing cavity 1232 is smaller than the aperture of the adjusting cavity 1231. The sealing part 1112 is installed in the sealing cavity 1232, and the adjusting part 1111 is located inside the adjusting cavity 1231. This arrangement facilitates the installation and positioning of the valve core 11 within the mounting cavity 123 by adjusting the stepped surface between the cavity 1231 and the sealing cavity 1232, ensuring the assembly accuracy of the valve core 11 inside the valve sleeve 12. Furthermore, an inner sealing ring is fitted onto the outer side of the sealing portion 1112, and the inner sealing ring is pressed against the cavity wall of the sealing cavity 1232 to achieve a seal. Preferably, at least two inner sealing elements 15 are spaced apart along the axial direction of the valve core 11.

[0070] The mounting base 2 has a mounting hole 28 for the connecting shaft 112 to pass through. In one embodiment, the end of the valve sleeve 12 away from the opening of the temperature regulating cavity 1113 is inserted into the mounting hole 28 to facilitate the installation and positioning of the valve sleeve 12 and the mounting base 2. Further, a positioning protrusion ring 124 protrudes from the open end of the valve sleeve 12 away from the temperature regulating cavity 1113. The positioning protrusion ring 124 is coaxially arranged around the valve sleeve 124, and a positioning step surface is formed between the positioning protrusion ring 124 and the end face of the main body structure of the valve sleeve 12. The positioning protrusion ring 124 is inserted into the mounting hole 28, and the mounting base 2 abuts against the positioning step surface. The cross-section of the positioning protrusion ring 124 is a non-circular cross-section, and the shape of the mounting hole 28 is the same as the shape of the positioning protrusion ring 124. This ensures that the valve sleeve 12 will not rotate relative to the mounting base 2, and consequently, the valve sleeve 12 will not rotate relative to the valve body, ensuring the reliability of the valve core module 1. Furthermore, the side of the positioning protrusion ring 124 is cut with an anti-rotation plane 1241 so that the cross-section of the positioning protrusion ring 124 is a D-shaped cross-section.

[0071] In one embodiment, an indicator mark is provided on the end face of the connecting shaft 112, indicating the circumferential position of the valve core 11 relative to the valve sleeve 12. This facilitates control of the required rotation angle of the valve core 11 via the drive motor 4, improving the rotation control accuracy of the valve core 11. Specifically, the indicator mark cooperates with the anti-rotation plane 1241 of the positioning protrusion 124 to indicate the relative circumferential position of the valve sleeve 12 and the valve core 11. In one embodiment, the indicator mark is an indicator groove 1123 formed on the end face of the connecting shaft 112, extending radially and axially along the connecting shaft 112 to prevent wear of the indicator mark and improve the clarity of the indication. In other embodiments, the indicator mark can be an engraved mark or a printed mark provided on the end face or side wall of the connecting shaft 112.

[0072] like Figures 6 to 9 As shown, in one embodiment, a rotating groove 21 is provided on the first side of the mounting base 2, and a mounting shaft hole 313 is provided through the bottom of the rotating groove 21. The connecting plate 31 is rotatably mounted in the rotating groove 21. By providing the rotating groove 21, the connecting plate 31 can be accommodated in the rotating groove 21, avoiding the problem of the connecting plate 31 protruding from the rotating groove 21, which would cause inconvenience in the installation of the mounting base 2 and the drive motor 4, and improving the assembly efficiency of the valve core mechanism. That is, the connecting plate 31 is sandwiched between the motor housing 41 of the drive motor 4 and the bottom of the rotating groove 21.

[0073] The rotating groove 21 has two limiting groove walls 2121 arranged opposite each other in the circumferential direction of the valve core 11. The connecting plate 31 is rotatably limited between the two limiting groove walls 2121, which facilitates the control of the rotation stroke of the connecting plate 31, thereby controlling the rotation stroke of the valve core 11, improving the rotational reliability of the valve core 11, and thus improving the operational reliability of the valve core mechanism. The central angle formed between the two limiting groove walls 2121 is between 45° and 180°, preferably between 60° and 145°.

[0074] The connecting plate 31 includes a circular plate portion 311 and an extension arm portion 312 extending radially outward from the circular plate portion 311. The circular plate portion 311 is coaxially arranged with the valve core component 11, and a mounting shaft hole 313 is provided on the circular plate portion 311. The magnetic component 32 is mounted on the extension arm portion 312. This allows for a reduction in the overall structural size of the connecting plate 31 while increasing the distance between the axes of the magnetic component 32 and the valve core component 11, thereby facilitating the mounting of the detection component 33 on the mounting base 2.

[0075] The rotating groove 21 includes a circular groove portion 211 and a limiting groove portion 212. The limiting groove portion 212 communicates with the circular groove portion 211 radially. The circular plate portion 311 is coaxially and rotatably mounted on the circular groove portion 211. The extension arm portion 312 is movably disposed on the limiting groove portion 212. The opposite side groove walls of the limiting groove portion 212 form a limiting groove wall 2121. The limiting groove wall 2121 abuts against the extension arm portion 312, limiting the rotation stroke of the connecting plate 31.

[0076] like Figure 2 and Figure 6 As shown, in one embodiment, the end face of the motor housing 41 of the drive motor 4 is provided with an abutting protrusion 43, which abuts against the mounting base 2. This makes the mounting base 2 and the end face of the motor housing 41 spaced apart, thereby improving the connection convenience between the mounting base 2 and the drive motor 4 while ensuring that the connecting plate 31 is clamped between the end face of the motor shaft 42 and the mounting base 2.

[0077] Multiple abutment protrusions 43 are spaced apart along the circumference of the motor shaft 42. At least part of the abutment protrusions 43 include stud portion 431. The stud portion 431 is provided with a fixed threaded hole. The mounting base 2 is provided with a fixed through hole. The fixed through hole and the fixed threaded hole are provided in a one-to-one correspondence. The mounting base 2 and the drive motor 4 are fastened by threaded fasteners passing through the fixed threaded hole and the fixed through hole.

[0078] In one embodiment, a positioning protrusion 44 protrudes from the abutment protrusion 43, and a positioning hole 23 is provided on the mounting base 2. The positioning protrusion 44 and the positioning hole 23 are provided in a one-to-one correspondence, and at least two positioning protrusions 44 are provided at intervals. The positioning protrusions 44 are inserted into the positioning holes 23 in a one-to-one correspondence to achieve the installation and positioning of the mounting base 2 and the drive motor 4. In another embodiment, the positioning hole 23 may also be provided on the abutment protrusion 43 and the mounting base 2.

[0079] To reduce the weight of the mounting base 2, in one embodiment, a weight-reducing groove 22 is provided on the first side of the mounting base 2. Multiple weight-reducing grooves 22 are provided at intervals along the circumference of the mounting hole 28, so as to reduce the weight of the mounting base 2 while ensuring the structural strength and rigidity of the mounting base 2, thereby reducing the weight of the valve core mechanism and reducing costs.

[0080] The weight-reducing groove 22 is formed on the first side of the mounting base 2, and the mounting base 2 and the valve body are connected to the valve body by fasteners passing through the bottom of the weight-reducing groove 22. This allows the weight-reducing groove 22 to provide more space for the fasteners to be installed and removed, thus improving the ease of installation and removal of the valve core mechanism on the valve body.

[0081] In one embodiment, a reinforcing rib 24 protrudes from the bottom of the weight-reducing groove 22. One end of the reinforcing rib 24 is connected to the side wall of the weight-reducing groove 22 near the mounting hole 28, and the other end of the reinforcing rib 24 extends to the side opening of the weight-reducing groove 22. This increases the opening range of the weight-reducing groove 22 while ensuring the overall structural strength and rigidity of the mounting base 2.

[0082] In one embodiment, a receiving groove 3121 is provided on the connecting plate 31, and the magnetic component 32 is housed in the receiving groove 3121 to achieve the installation and positioning of the magnetic component 32 on the connecting plate 31, and to ensure the installation stability and reliability of the magnetic component 32, while avoiding the magnetic component 32 protruding from the connecting plate 31 and causing interference with the drive motor 4. The shape of the receiving groove 3121 is the same as the shape of the magnetic component 32 to avoid relative movement between the two and ensure the reliability of detection.

[0083] In one embodiment, the magnetic component 32 is bonded to the receiving groove 3121 to ensure the stability and ease of installation of the magnetic component 32. In other embodiments, a metal structure can also be embedded in the bottom of the receiving groove 3121 by screws or other means, and the magnetic component 32 is magnetically attracted to the receiving groove 3121 by the metal structure. In yet another embodiment, the magnetic core can also be snapped into the receiving groove 3121. The magnetic component 32 is a magnet, and the detection component 33 is a Hall sensor capable of detecting the magnet.

[0084] like Figure 2 , Figure 6 and Figure 10 As shown, to improve the ease of installation of the detection component 33 on the mounting base 2, a mounting groove 25 is provided on the second side of the mounting base 2, in which the detection component 33 is installed. The mounting groove 25 also facilitates the installation and positioning of the detection component 33 on the mounting base 2 and reduces interference between the detection component 33 and the valve core module 1. A wire through hole communicating with the mounting groove 25 is provided on the periphery of the mounting base 2, through which the connecting wire of the detection component 33 passes out of the mounting base 2 to facilitate the electrical connection between the detection component 33 and the external structure.

[0085] In one embodiment, the mounting groove 25 has snap-fit ​​portions 26 on opposite sides of the groove wall. The snap-fit ​​portions 26 snap into the detection element 33 to ensure the installation stability of the detection element 33 within the mounting groove 25 and to improve the ease of installation and removal of the detection element 33. In other embodiments, the detection element 33 may also be glued or fastened to the mounting groove 25 with screws.

[0086] Furthermore, the snap-fit ​​portion 26 has a connected guide slope 262 and a limiting surface 261 on the side facing the center of the mounting groove 25. The limiting surfaces 261 of the snap-fit ​​portions 26 on both sides of the mounting groove 25 are parallel and spaced apart. The guide slope 262 is connected to the side of the limiting surface 261 away from the bottom of the mounting groove 25, and extends obliquely away from the bottom of the mounting groove 25. That is, the guide slope 262 of the snap-fit ​​portions 26 on both sides guides the detection member 33 from the opening of the mounting groove 25 into the mounting groove 25, and finally snaps between the limiting surfaces 261 of the snap-fit ​​portions 26 on both sides.

[0087] In other embodiments, the limiting surface 261 of the snap-fit ​​portion 26 can be parallel to and spaced apart from the bottom of the mounting groove 25. After the detection member 33 enters the mounting groove 25 along the guide slope 262, it snaps between the bottom of the mounting groove 25 and the limiting surface 261.

[0088] The bottom of the mounting groove 25 is provided with a bottom limiting protrusion 27. The outer shell of the detection component 33 abuts against the bottom limiting protrusion 27 on the side away from the bottom of the mounting groove 25 and is sandwiched between the two snap-fit ​​parts 26. This can prevent the detection part of the detection component 33 from being squeezed against the bottom of the mounting groove 25, ensure that the structure of the detection part is not damaged by squeezing, improve the safety of the detection component 33 and extend the service life of the detection component 3.

[0089] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0090] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A valve core mechanism for cooperating with a valve core cavity on a valve body, the valve core cavity having a cold water inlet, a hot water inlet, and a mixing outlet communicating with the valve core cavity, characterized in that, The valve core mechanism includes: Mounting base (2) has a first side and a second side arranged opposite to each other; A valve core (11) is located on the second side of the mounting base (2). One end of the valve core (11) rotates through the mounting base (2), and the valve core (11) has a temperature regulating cavity (1113) for communicating with the mixing outlet. A drive motor (4) is installed on the first side of the mounting base (2) and the motor shaft (42) is connected to the valve core (11). The drive motor (4) drives the valve core (11) to rotate so as to adjust the connection state between the temperature regulating chamber (1113) and the cold water connection port and the hot water connection port. The detection component (3) includes a connecting plate (31) that rotates synchronously with the valve core (11), a magnetic component (32) mounted on the connecting plate (31), and a detection component (33) mounted on the mounting base (2). The connecting plate (31) is located between the motor shaft (42) and the mounting base (2), and the detection component (33) is used to detect the position of the magnetic component (32).

2. The valve core mechanism according to claim 1, characterized in that, The mounting base (2) has a rotating groove (21) on its first side. The connecting plate (31) is rotatably housed in the rotating groove (21), and the connecting plate (31) is located between the end face of the motor shaft (42) and the bottom of the rotating groove (21). And / or, the second side of the mounting base (2) is provided with a mounting groove (25), and the detection element (33) is accommodated in the mounting groove (25); And / or, the connecting plate (31) is provided with a receiving groove (3121), and the magnetic element (32) is received in the receiving groove (3121).

3. The valve core mechanism according to claim 2, characterized in that, The rotating groove (21) has two limiting groove walls (2121) arranged opposite to each other in the circumferential direction of the motor shaft (42), and the connecting plate (31) is rotatably limited between the two limiting groove walls (2121); And / or, the connecting plate (31) includes a circular plate portion (311) and an extension arm portion (312) extending radially outward along the circular plate portion (311), the circular plate portion (311) being coaxially sleeved on the valve core (11), and the magnetic element (32) being mounted on the extension arm portion (312).

4. The valve core mechanism according to claim 3, characterized in that, The rotating groove (21) includes a connected circular groove (211) and a limiting groove (212). The circular plate (311) is coaxially disposed in the circular groove (211), and the extension arm (312) is movably disposed in the limiting groove (212). The opposite side walls of the limiting groove (212) form the limiting groove wall (2121).

5. The valve core mechanism according to claim 1, characterized in that, The circumferential sidewall of the valve core (11) is cut with a positioning plane (1122), and the connecting plate (31) is provided with a connecting hole (421) for the valve core (11) to pass through. The hole wall of the connecting hole (421) has a flat wall surface (3132), and the flat wall surface (3132) is in contact with the positioning plane (1122). And / or, the valve core (11) is provided with a circumferentially protruding rib (1121), the rib (1121) extends along the axial direction of the valve core (11), the hole wall of the connecting hole (421) has a groove (3131), the groove (3131) is provided corresponding to the rib (1121), and the rib (1121) is inserted into the groove (3131).

6. The valve core mechanism according to claim 2, characterized in that, The mounting groove (25) has protruding snap-fit ​​parts (26) on its opposite sides, and the detection element (33) is snapped between the snap-fit ​​parts (26) on both sides. And / or, the mounting base (2) has a wire-passing port on its periphery that communicates with the mounting groove (25).

7. The valve core mechanism according to claim 6, characterized in that, The snap-fit ​​portion (26) has a connected guide slope (262) and a limiting surface (261) on the side facing the inside of the mounting groove (25). The limiting surfaces (261) of the snap-fit ​​portions (26) on both sides are parallel and spaced apart. The guide slope (262) is connected to the side of the limiting surface (261) away from the bottom of the mounting groove (25), and the guide slope (262) is inclined away from the bottom of the mounting groove (25) towards the inside of the mounting groove (25). And / or, the bottom of the mounting groove (25) is provided with a bottom limiting protrusion (27), and the housing of the detection element (33) abuts against the bottom limiting protrusion (27).

8. The valve core mechanism according to claim 1, characterized in that, The motor housing (41) end face of the drive motor (4) is provided with abutting protrusions (43), and a plurality of abutting protrusions (43) are provided at intervals along the circumference of the motor shaft (42), and the abutting protrusions (43) abut against the mounting base (2).

9. The valve core mechanism according to any one of claims 1-8, characterized in that, It also includes a valve sleeve (12), which has a separate cold water inlet (121) and a hot water inlet (122), and one end of the valve sleeve (12) is fixedly installed on the second side of the mounting base (2); The valve core (11) is rotatably installed inside the valve sleeve (12), and the valve core (11) is provided with the temperature regulating cavity (1113). The side wall of the valve core (11) is provided with a temperature regulating water inlet (1114) that communicates with the temperature regulating cavity (1113). The rotation of the valve core (11) adjusts the communication area between the temperature regulating water inlet (1114) and the cold water inlet (121) and the hot water inlet (122).

10. A temperature regulating valve, comprising a valve body having a valve core cavity, the valve body having a cold water inlet, a hot water inlet, and a mixing outlet communicating with the valve core cavity, characterized in that, It also includes the valve core mechanism as described in any one of claims 1-9, wherein the mounting base (2) is mounted on the valve body and the drive motor (4) is located outside the mounting base (2), the valve core component (11) is inserted into the valve core cavity, the rotation of the valve core component (11) adjusts the communication state between the temperature regulating cavity (1113) and the cold water connection port and the hot water connection port, and the temperature regulating cavity (1113) is connected to the mixing water outlet.

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