Constant-temperature controller for controlling water temperature

Abstract

The present invention relates to a constant-temperature controller for controlling water temperature. The constant-temperature controller is characterized by comprising: a valve seat, wherein a cold-water intake flow channel, a hot-water intake flow channel, a first valve core mounting cavity, a second valve core mounting cavity, a cold-water outflow channel, a hot-water outflow channel, a water mixing cavity, a third valve core mounting cavity and a mixed-water outflow channel are provided in the valve seat; a first flow-regulating valve core, a first movable valve plate of which is driven by a first electric motor; a second flow-regulating valve core, which is mounted in the second valve core mounting cavity, and a second movable valve plate of which is driven by a second electric motor; and a balance valve core, wherein the cold-water outflow channel is connected to a cold-water inlet of the balance valve core, the hot-water outflow channel is connected to a hot-water inlet of the balance valve core, and both a cold-water outlet and a hot-water outlet of the balance valve core are connected to the water mixing cavity. By means of the movement of a piston in the balance valve core, the flow rates of cold and hot water are regulated, thereby effectively solving the problem whereby the range of fluctuations in water output becomes larger due to the issue of water pressure differences.

Description

Thermostatic controller to control water temperature Technical Field

[0001] The present invention relates to the technical field of automatic temperature control systems for faucets, and in particular to a constant temperature controller for controlling water temperature, which is particularly suitable for use in shower systems. Background Art

[0002] At present, the intelligentization of smart faucets has poor stability, and the intelligent technology and functional experience are not well combined, ignoring the convenience and stability of the use of smart faucets. At present, the intelligent valve control systems on the market are basically controlled by a flat-opening mixing valve core. For example, a Chinese invention patent application with application number CN202210152317.1 (publication number CN114484009A) discloses "A control valve and its control method", which discloses such a flat-opening mixing valve core that can realize intelligent control, including a valve body and a main control board. A valve core for controlling the outlet water temperature and the outlet water flow is provided in the valve body, and an execution unit 1 and an execution unit 2 are provided on the valve body. A detection unit 1 for detecting the water flow temperature and a detection unit 2 for detecting the water flow pressure are provided on the valve body. The main control board can receive the signal of the detection unit 1 and drive the valve core to control the water flow through the execution unit 1. The main control board can receive the signal of the detection unit 2 and drive the valve core to control the outlet water temperature through the execution unit 2.

[0003] The above solution has the following defects:

[0004] 1. Since the hot water pressure or temperature fluctuates greatly in most users' usage scenarios, the valve core needs to rotate continuously to adjust the temperature. The valve core does not respond quickly to water pressure fluctuations. Due to the problem of water pressure difference, the fluctuation range of water output becomes larger, and the outlet water temperature will be hot and cold in a certain period of time, affecting the experience.

[0005] 2. This type of smart control box currently has only one water outlet, which is not convenient for use in a shower system. If it is to be used in a shower system, an additional water diversion faucet needs to be installed after the water outlet, resulting in a more dispersed control part.

[0006] 3. It has only one temperature sensor, which is set at the end. It can only compare the outlet water temperature with the set temperature. It may also cause the outlet water temperature to be extremely unstable. The outlet water temperature will be too high or too low, and the user experience will be poor. Since the water inlet pressure and flow are unknown, multiple adjustments are required to reach the set temperature.

[0007] 4. This type of smart control box currently has only one water outlet, which is not convenient for use in a shower system. If it is to be used in a shower system, an additional water diversion faucet needs to be installed after the water outlet, resulting in a more dispersed control part.

[0008] 5. The water inlet flow of a single channel can only be controlled in some areas.

[0009] Therefore, the automatic temperature control module of the existing faucet needs further improvement.

[0010] Summary of the Invention

[0011] The first technical problem to be solved by the present invention is to provide a thermostatic controller for controlling water temperature with a reasonable structure, little influence from inlet water pressure fluctuations, and the ability to automatically adjust outlet water temperature, in view of the current status of the existing technology.

[0012] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a thermostatic controller for controlling water temperature, characterized in that: it includes a valve seat, the valve seat has a cold water inlet channel, a hot water inlet channel, a first valve core installation cavity, a second valve core installation cavity, a cold water outflow channel, a hot water outflow channel, a mixing water cavity, a third valve core installation cavity and a mixed water outflow channel, the mixing water cavity is connected to the mixed water outflow channel; the first flow regulating valve core is installed in the first valve core installation cavity, the cold water inlet channel is connected to the first water inlet end of the first flow regulating valve core, the first water outlet end of the first flow regulating valve core is connected to the cold water outflow channel, the first flow regulating valve core is installed in the first valve core installation cavity, the cold water inlet channel is connected to the first water inlet end of the first flow regulating valve core, the first water outlet end of the first flow regulating valve core is connected to the cold water outflow channel, and the first flow regulating valve core is installed in the first valve core installation cavity. The first movable valve plate of the metering valve core is driven by the first motor to rotate and adjust the cold water flow; the second flow regulating valve core is installed in the second valve core installation cavity, the hot water inlet channel is connected with the second water inlet end of the second flow regulating valve core, and the second water outlet end of the second flow regulating valve core is connected with the hot water outflow channel, and the second movable valve plate of the second flow regulating valve core is driven by the second motor to rotate and adjust the hot water flow; the balancing valve core is installed in the third valve core installation cavity, the cold water outflow channel is connected with the cold water inlet of the balancing valve core, and the hot water outflow channel is connected with the hot water inlet of the balancing valve core, and the cold water outlet and hot water outlet of the balancing valve core are both connected with the mixing water chamber.

[0013] A further improvement is that there are multiple mixed water outflow channels, the valve seat has a fourth valve core installation cavity, and a water diversion valve core is installed in the fourth valve core installation cavity. The water outlet end of the mixing water chamber is connected to the third water inlet end of the water diversion valve core. The multiple third water outlet ends of the water diversion valve core are connected to each mixed water outflow channel. The third movable valve plate of the water diversion valve core is driven to rotate by a third motor so that the third water inlet end is selectively connected to one of the third water inlet ends. After the hot and cold water are mixed in the mixing water chamber, they flow to the water diversion valve core, and the water is diverted to one of the mixed water outflow channels through the water diversion valve core. The corresponding mixed water outflow channel is connected to the corresponding water outlet structure (shower head, faucet, overhead spray) in the shower system, without the need to set up an additional water diversion valve outside the module. Therefore, this module has a compact structure and good integrity, and is particularly suitable for use in shower systems.

[0014] As an improvement, a manual switch valve core is installed in the mixing chamber to manually control the water flow of the mixing chamber. The setting of the manual switch valve core makes it possible to manually shut off the total water flow in the event of motor damage, making it more user-friendly.

[0015] As an improvement, a water flow generator is also installed in the mixing chamber, with a manual on / off valve located below or above the generator. Water flow generators utilize water flow to generate electricity, a state-of-the-art technology. This solution places the generator in the mixing chamber, allowing water flowing in from both sides to jointly rotate the impeller of the water flow generator, resulting in higher power generation efficiency. The electricity generated by the water flow generator can be used to power the display, batteries, or other power-consuming components.

[0016] Preferably, the manual on / off valve core is a ball valve, with the fourth water inlet located at the bottom and the fourth water outlet located at the top. The manual on / off valve core is inserted laterally into the mixing chamber. The ball valve allows for a straight-up and straight-down water path, reducing energy loss and increasing outlet water pressure. Alternatively, the fourth water inlet of the manual on / off valve core is located at the bottom and the fourth water outlet is located to the side. The manual on / off valve core is inserted from top to bottom into the mixing chamber and secured within the mixing chamber via a threaded connection to the fourth gland.

[0017] In order to quickly and accurately adjust the outlet water temperature automatically, further improvements are made, including a first flow sensor, arranged in the cold water inlet channel to detect the flow of cold water; a second flow sensor, arranged in the hot water inlet channel to detect the flow of hot water; a first temperature sensor, arranged in the hot water outflow channel to detect the water temperature of hot water; and a second temperature sensor, arranged in the mixing water chamber to detect the water temperature of the mixed water. The flow rates of cold water and hot water are measured by two flow sensors, and the temperature of cold water is basically constant. The temperature of hot water is detected by the first temperature sensor, and the data of the two detected flow rates and hot water temperature are sent to the information control module. The information control module will calculate the flow rate and temperature of the mixed water according to the model (the model knows how much flow rate of hot water and how much flow rate of cold water are mixed to obtain mixed water with the corresponding flow rate and temperature), that is, it roughly knows how much angle the movable valve plates of the two flow regulating valve cores need to rotate respectively so that the mixed water can reach the set temperature and flow rate. At this time, the movable valve plate of the flow regulating valve core will rotate to an angle in advance (this angle is close to the angle to which it is finally required to rotate). Finally, the mixed water temperature signal measured by the second temperature sensor is compared, and the information control module sends a final signal to the two motor control modules, and the movable valve plate of the flow regulating valve core can quickly rotate to the correct angle. Because its response speed is very fast, the problem of the mixed water output being hot and cold will be significantly improved.

[0018] While the cold water temperature doesn't fluctuate much, the difference between winter and summer is noticeable. To achieve more precise automatic adjustment of the outlet water temperature, further improvements have been made, including a third temperature sensor located in the cold water outflow channel to detect the cold water temperature. This cold water temperature signal detected by the third temperature sensor is combined with the aforementioned flow rate and hot water temperature data and sent to the information control module. This allows for a clearer understanding of the corresponding rotation angles of the two flow control valve discs. The flow control valve discs will rotate closer to the set temperature in advance.

[0019] In order to make the layout of each flow channel reasonable, as a preferred layout, the above-mentioned cold water outflow channel, hot water outflow channel, mixed water outflow channel, mixed water chamber, third valve core installation chamber and fourth valve core installation chamber are all located between the first valve core installation chamber and the second valve core installation chamber. The first valve core installation chamber and the cold water inlet flow channel are coaxially arranged, and the second valve core installation chamber and the hot water inlet flow channel are coaxially arranged. The axes of the cold water inlet flow channel and the hot water inlet flow channel are parallel and the mouth ends are all facing downward, which is conducive to the connection of the cold water inlet pipe, hot water inlet pipe and outlet pipe with this module. The connection direction of each water pipe is connected from bottom to top, which makes the connection more convenient and reasonable. The mouth ends of the first valve core installation chamber, the second valve core installation chamber and the fourth valve core installation chamber face upward, and the mouth end of the third valve core installation chamber faces downward. Because the water inlet flow channel and the corresponding valve core installation chamber are coaxially arranged and connected from top to bottom, it is conducive to the molding of the product and more convenient to pull the core of the mold during the manufacturing process.

[0020] To facilitate the formation of each flow channel within the valve seat, the cold water outflow channel and the hot water outflow channel are coaxially arranged laterally. The cold water outflow channel transversely penetrates the side wall of the first valve core installation cavity and is provided with a first plug seal at the perforation position of the side wall of the first valve core installation cavity. The hot water outflow channel transversely penetrates the side wall of the second valve core installation cavity and is provided with a second plug seal at the perforation position of the side wall of the second valve core installation cavity. The third valve core installation cavity is located below the first axis, and the mixing water chamber and the fourth valve core installation cavity are located above the first axis. The cold water outflow channel and the hot water outflow channel correspondingly penetrate the first valve core installation cavity and the second valve core installation cavity and are located on the same axis. In this way, the cold water outflow channel and the hot water outflow channel can be formed by lateral core pulling.

[0021] To facilitate installation of the flow regulating valve core and the water diversion valve core, the first water inlet end of the first flow regulating valve core is located at the bottom, and the first water outlet end is located at the side. The first flow regulating valve core is inserted from top to bottom into the first valve core installation cavity; the second water inlet end of the second flow regulating valve core is located at the bottom, and the second water outlet end is located at the side. The second flow regulating valve core is inserted from top to bottom into the second valve core installation cavity; the third water inlet end of the water diversion valve core is located at the side, and the third water outlet end is located at the bottom. The water diversion valve core is inserted from top to bottom into the third valve core installation cavity. Both the flow regulating valve core and the water diversion valve core are inserted from top to bottom into the valve core installation cavity and then constrained by a pressure cap. Assembly is very convenient, and the pressure cap provides a suitable installation position for the motor. The pressure cap only needs to provide a through hole for the output shaft of the power supply motor to pass through. After the output shaft of the motor passes through the through hole, it can be plugged into the valve stem of the flow regulating valve core. In this way, the motor can drive the valve stem to rotate, thereby driving the rotation of the movable valve plate of the flow regulating valve core to achieve flow regulation.

[0022] Compared with the existing technology, the advantages of the first technical solution of the present invention are as follows: this controller uses two independent flow regulating valve cores and one balancing valve core to perform control. The two flow regulating valve cores are used to control the inflow of cold water and hot water respectively, realizing the control of water temperature and flow. In particular, the setting of the balancing valve core can adjust the flow of hot and cold water by moving the piston in the balancing valve core when the water pressure of hot and cold water fluctuates, ensuring that the two are mixed according to the preset ratio, effectively solving the problem of the water pressure difference causing the fluctuation range of water output to increase and the water temperature to fluctuate within a certain period of time. In addition, the flow regulating valve cores are all controlled by motors, thus providing a basis for the automatic control of the shower system.

[0023] The second technical problem to be solved by the present invention is to provide a constant temperature shower system control module with a reasonable and compact structure, integrated water separation function, and the ability to automatically adjust the outlet water temperature in response to the current status of the existing technology.

[0024] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a constant temperature controller for controlling water temperature, characterized in that: it includes a valve seat, the valve seat has a cold water inlet channel, a hot water inlet channel, a first valve core installation cavity, a second valve core installation cavity, a cold water outflow channel, a hot water outflow channel, a mixing water cavity, a fourth valve core installation cavity and a mixed water outflow channel, the cold water outflow channel and the hot water outflow channel are connected to the mixing water cavity, and there are multiple mixed water outflow channels; a first flow regulating valve core is installed in the first valve core installation cavity, the cold water inlet channel is connected to the first water inlet end of the first flow regulating valve core, the first water outlet end of the first flow regulating valve core is connected to the cold water outflow channel, and the first flow regulating valve core has a fourth water outlet end. A movable valve plate is driven by a first motor to rotate and adjust the cold water flow; a second flow regulating valve core is installed in the second valve core installation cavity, the hot water flow channel is connected with the second water inlet end of the second flow regulating valve core, and the second water outlet end of the second flow regulating valve core is connected with the hot water outflow channel, and the second movable valve plate of the second flow regulating valve core is driven by a second motor to rotate and adjust the hot water flow; a water diverter valve core is installed in the fourth valve core installation cavity, the water outlet end of the mixing water chamber is connected with the third water inlet end of the water diverter valve core, and multiple third water outlet ends of the water diverter valve core are connected to each mixed water outflow channel, and the third movable valve plate of the water diverter valve core is driven by a third motor to rotate so that the third water inlet end is selected to be connected with one of the third water outlet ends.

[0025] Compared with the prior art, the second technical solution of the present invention has the following advantages: This controller uses two independent flow regulating valve cores and one water diversion valve core to perform control. The two flow regulating valve cores are used to control the inflow of cold water and hot water respectively, realizing the control of water temperature and flow. After the cold and hot water are mixed in the mixing chamber, they flow to the water diversion valve core, and the water is directed to one of the mixed water outflow channels through the water diversion valve core. This module integrates each valve core into a valve seat, and the corresponding mixed water outflow channel is connected to the corresponding water outlet structure (shower, faucet, overhead spray) in the shower system. There is no need to set up an additional water diversion valve outside the module. Therefore, this module has a compact structure and good integrity, and is particularly suitable for shower systems. In addition, both the flow regulating valve core and the water diversion valve core are motor-controlled, thus providing a basis for the automated control of the shower system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of a three-dimensional structure of a first embodiment of the present invention;

[0027] FIG2 is a second schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0028] FIG3 is a cross-sectional view along the length of the valve seat of the first embodiment of the present invention;

[0029] FIG4 is a cross-sectional view taken along the line AA of FIG3 ;

[0030] FIG5 is a cross-sectional view taken along line BB of FIG3 ;

[0031] FIG6 is an exploded perspective view of a first embodiment of the present invention;

[0032] FIG7 is a schematic diagram of the control principle of the first embodiment of the present invention;

[0033] FIG8 is a schematic diagram of the three-dimensional structure of a second embodiment of the present invention;

[0034] FIG9 is a schematic diagram of the three-dimensional structure of a third embodiment of the present invention;

[0035] FIG10 is a cross-sectional view along the length of the valve seat of the third embodiment of the present invention;

[0036] FIG11 is a schematic diagram of the three-dimensional structure of the fourth embodiment of the present invention;

[0037] FIG12 is a second schematic diagram of the three-dimensional structure of the fourth embodiment of the present invention;

[0038] FIG13 is a cross-sectional view along the length of the valve seat of the fourth embodiment of the present invention;

[0039] FIG14 is an exploded perspective view of a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0040] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0041] As shown in Figures 1 to 7, this is the first embodiment of the present invention.

[0042] A thermostatic controller for controlling water temperature, comprising

[0043] The valve seat 1 has a cold water inlet channel 1a, a hot water inlet channel 1b, a first valve core installation chamber 1c, a second valve core installation chamber 1d, a cold water outflow channel 1e, a hot water outflow channel 1f, a mixing water chamber 1g, a third valve core installation chamber 1h and a mixed water outflow channel 1i. The cold water outflow channel 1e and the hot water outflow channel 1f are connected to the mixing water chamber 1g after intersection, and the mixing water chamber 1g is connected to the mixed water outflow channel 1i.

[0044] The cold water outflow channel 1e, the hot water outflow channel 1f, the mixed water outflow channel 1i, the mixing water chamber 1g, the third valve core installation chamber 1h and the fourth valve core installation chamber 1j are all located between the first valve core installation chamber 1c and the second valve core installation chamber 1d. The first valve core installation chamber 1c and the cold water inlet channel 1a are coaxially arranged, and the second valve core installation chamber 1d and the hot water inlet channel 1b are coaxially arranged, and the axes of the cold water inlet channel 1a and the hot water inlet channel 1b are parallel and the mouth ends are facing downward, and the mouth ends of the first valve core installation chamber 1c, the second valve core installation chamber 1d and the fourth valve core installation chamber 1j are facing upward; the third valve core installation chamber 1h is located below the axis of the cold water inlet channel 1a and the hot water inlet channel 1b, and the mixing water chamber 1g and the fourth valve core installation chamber 1j are located above the axis of the cold water inlet channel 1a and the hot water inlet channel 1b.

[0045] The cold water outflow channel 1e and the hot water outflow channel 1f are coaxially arranged laterally along the first axis X. The cold water outflow channel 1e transversely penetrates the side wall of the first valve core installation chamber 1c, and is sealed at the perforation position of the side wall of the first valve core installation chamber 1c with a first plug 11a. The hot water outflow channel 1f transversely penetrates the side wall of the second valve core installation chamber 1d, and is sealed at the perforation position of the side wall of the second valve core installation chamber 1d with a second plug 11b; the third valve core installation chamber 1h is arranged below the first axis X, and the mixing water chamber 1g and the fourth valve core installation chamber 1j are arranged above the first axis X.

[0046] The first flow regulating valve core 2a is installed in the first valve core installation cavity 1c, the cold water inlet channel 1a is connected with the first water inlet end 2a1 of the first flow regulating valve core 2a, and the first water outlet end 2a2 of the first flow regulating valve core 2a is connected with the cold water outflow channel 1e. The first movable valve plate 2a3 of the first flow regulating valve core 2a is driven to rotate by the first motor 3a to adjust the cold water flow; the first water inlet end 2a1 of the first flow regulating valve core 2a is arranged at the bottom, and the first water outlet end 2a2 is arranged on the side. The first flow regulating valve core 2a is inserted into the first valve core installation cavity 1c from top to bottom, and is fixed in the first valve core installation cavity 1c by the first pressure cover 8a fixed at the top of the first valve core installation cavity 1c. The first motor 3a is fixed to the first pressure cover 8a by screws. The first output shaft 3a1 of the first motor 3a passes through the first pressure cover 8a and is plugged into the first valve stem 2a4 of the first flow regulating valve core 2a.

[0047] The second flow regulating valve core 2b is installed in the second valve core installation cavity 1d, the hot water inlet channel 1b is connected with the second water inlet end 2b1 of the second flow regulating valve core 2b, and the second water outlet end 2b2 of the second flow regulating valve core 2b is connected with the hot water outflow channel 1f. The second movable valve plate 2b3 of the second flow regulating valve core 2b is driven to rotate by the second motor 3b to adjust the hot water flow; the second water inlet end 2b1 of the second flow regulating valve core 2b is arranged at the bottom, and the second water outlet end 2b2 is arranged on the side. The second flow regulating valve core 2b is inserted into the second valve core installation cavity 1d from top to bottom, and is fixed in the second valve core installation cavity 1d by the second pressure cover 8b fixed at the top of the second valve core installation cavity 1d. The second motor 3b is fixed to the second pressure cover 8b by screws, and the second output shaft 3b1 of the second motor 3b passes through the second pressure cover 8b and is plugged into the second valve stem 2b4 of the second flow regulating valve core 2b.

[0048] The balancing valve core 10 is installed in the third valve core installation cavity 1h. The cold water outflow channel 1e is connected to the cold water inlet 101 of the balancing valve core 10, and the hot water outflow channel 1f is connected to the hot water inlet 102 of the balancing valve core 10. The cold water outlet 103 and the hot water outlet 104 of the balancing valve core 10 are both connected to the mixing water chamber 1g.

[0049] There are multiple mixed water outflow channels 1i, and the valve seat 1 has a fourth valve core installation cavity 1j. The fourth valve core installation cavity 1j has a water-dividing valve core 6 installed in it. The water outlet end of the mixing water cavity 1g is connected to the third water inlet end 61 of the water-dividing valve core 6. The multiple third water outlet ends 62 of the water-dividing valve core 6 are connected to each mixed water outflow channel 1i accordingly. The third movable valve plate 63 of the water-dividing valve core 6 is driven to rotate by the third motor 3c so that the third water inlet end 61 is selected to be connected to one of the third water outlet ends 62. The third water inlet end 61 of the water-dividing valve core 6 is arranged on the side, and the third water outlet end 62 is arranged at the bottom. The water-dividing valve core 6 is inserted into the third valve core installation cavity 1h from top to bottom, and is fixed in the third valve core installation cavity 1h by a third pressure cover 8c fixed on the top of the third valve core installation cavity 1h. The third motor 3c is fixed to the third pressure cover 8c by screws, and the second output shaft 3c1 of the third motor 3c passes through the third pressure cover 8c and is plugged into the third valve stem 64 of the water-dividing valve core 6.

[0050] A manual on / off valve core 9 is installed within the mixing chamber 1g, allowing manual control of water flow. A water flow generator 7 is also installed within the mixing chamber 1g, with the manual on / off valve core 9 positioned below the generator. The manual on / off valve core 9 is a ball valve with a fourth water inlet end 91 located at the bottom and a fourth water outlet end 92 located at the top. The manual on / off valve core 9 is inserted laterally into the mixing chamber 1g.

[0051] Certainly the direction of entry of cold water and hot water can be interchanged. That is, the cold water flow channel 1a can also enter hot water, and the hot water flow channel 1b can also enter cold water.

[0052] This controller uses two independent first flow regulating valve cores 2a, second flow regulating valve cores 2b, and a balancing valve core 10 to execute the control scheme. The first flow regulating valve core 2a and the second flow regulating valve core 2b are used to control the inflow of cold water and hot water respectively, realizing the control of water temperature and flow. In particular, the setting of the balancing valve core 10, when encountering the water pressure fluctuation of hot and cold water, can adjust the flow of hot and cold water by moving the piston in the balancing valve core, ensuring that the proportion of the two is mixed according to the preset ratio, effectively solving the problem of the fluctuation range of water output due to the water pressure difference becoming larger, and the water temperature of the outlet being hot and cold in a certain period of time. In addition, the flow regulating valve cores are all controlled by motors, thus providing a basis for the automatic control of the shower system.

[0053] This module further includes

[0054] The first flow sensor 4a is disposed in the cold water inlet passage 1a to detect the flow rate of cold water.

[0055] The second flow sensor 4b is provided in the hot water inlet passage 1b for detecting the flow rate of the hot water.

[0056] The first temperature sensor 5a is provided in the hot water outflow channel 1f for detecting the temperature of the hot water.

[0057] The second temperature sensor 5b is disposed in the water mixing chamber to detect the temperature of the mixed water.

[0058] As shown in Figure 6, the first flow sensor 4a, the second flow sensor 4b, the first temperature sensor 5a, the second temperature sensor 5b, and the third temperature sensor 5c are electrically connected to the information control module, and the motor control module is also electrically connected to the information control module. The information control module also includes touch buttons for setting the outlet water temperature and starting or shutting down the system. It also includes a display module electrically connected to the information control module, which displays the current water temperature, flow rate, and the set outlet water temperature.

[0059] As shown in Figure 7, after the user enables the start function through the information control module, the display module is started to display the lighted display information (current water temperature, cold water flow, hot water flow and set water outlet temperature information); the first flow sensor 4a is started to detect the cold water flow, and the cold water flow signal is transmitted to the information control module; the second flow sensor 4b is started to detect the hot water flow, and the hot water flow signal is transmitted to the information control module; the second temperature sensor 5b is started to detect the hot water temperature, and the hot water temperature signal is transmitted to the information control module. After the user sets the desired mixed water temperature and desired flow rate in the control module, the information control module sends a signal to the motor control module based on the embedded model and algorithm. This roughly determines the angle range within which the movable valve discs of the first and second flow regulating valve cores 2a and 2b need to rotate in order for the mixed water to reach the desired temperature and flow rate. At this point, the movable valve discs of the first and second flow regulating valve cores 2a and 2b, driven by the first and second motors 3a and 3b, are pre-rotated to an angle (this angle is relatively close to the desired final angle). The third temperature sensor 5c detects the real-time temperature of the mixed water and transmits this real-time temperature signal to the information control module for comparison. The information control module then sends a signal to the motor control module, controlling the first and second motors 3a and 3b to quickly rotate the movable valve discs of the first and second flow regulating valve cores 2a and 2b to the correct angle (the angle that causes the mixed water temperature to reach the desired temperature and flow rate). This results in a very fast response, significantly improving the fluctuating temperature of the mixed water. After mixing in the mixing chamber 1g, hot and cold water flow to the water diversion valve core 6, which directs the water to one of the mixed water outflow channels 1i. This module integrates each valve core onto a single valve seat 1. The corresponding mixed water outflow channel 1i connects to the corresponding water outlet structure (shower, faucet, overhead shower) in the shower system, eliminating the need for an additional water diversion valve external to the module. This module is compact and well-integrated, making it particularly suitable for shower systems. Furthermore, both the flow control valve core and the water diversion valve core are motor-controlled, providing a foundation for automated control of shower systems.

[0060] FIG8 shows a second embodiment of the present invention.

[0061] The difference between this embodiment and the first embodiment is that it further includes a third temperature sensor 5c, which is disposed in the cold water outflow channel 1e to detect the temperature of the cold water. Specifically, the third temperature sensor 5c is disposed on the first plug 11a.

[0062] Combined with the cold water temperature signal detected by the third temperature sensor 5c, and sending the cold water temperature data together with the aforementioned two flow rates and hot water temperature data to the information control module, it can be clearer what angle range the movable valve plates of the two flow regulating valve cores need to rotate respectively. The movable valve plates of the flow regulating valve cores will rotate in advance to an angle closer to the set temperature.

[0063] As shown in Figures 9 and 10, this is the third embodiment of the present invention.

[0064] The difference between this embodiment and the second embodiment is that the aforementioned balancing valve core 10 is cancelled, the manual switch valve core 9 adopts a conventional valve plate type valve core, and the installation position and method are slightly different. The fourth water inlet end 91 of the manual switch valve core 9 is arranged at the bottom, and the fourth water outlet end 92 is arranged on the side. The manual switch valve core 9 is inserted into the mixing water chamber 1g from top to bottom, and is fixed in the mixing water chamber 1g by being threadedly connected to the fourth pressure cover 8d of the mixing water chamber 1g.

[0065] As shown in Figures 11 to 14, this is a fourth embodiment of the present invention.

[0066] The difference between this embodiment and the third embodiment is that: a water flow generator 7 is installed at the position of the aforementioned manual switch valve core 9, that is, there are two water flow generators 7.

[0067] In the present specification and claims, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Because the embodiments disclosed herein can be arranged in various orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A constant temperature controller for controlling water temperature, characterized in that: including a valve seat (1) having a cold water inlet passage (1a), a hot water inlet passage (1b), a first valve core installation cavity (1c), a second valve core installation cavity (1d), a cold water outlet passage (1e), a hot water outlet passage (1f), a mixing cavity (1g), a third valve core installation cavity (1h), and a mixed water outlet passage (1i) therein, and the mixing cavity (1g) is communicated with the mixed water outlet passage (1i); a first flow rate regulating valve core (2a) installed in the first valve core installation cavity (1c), the cold water inlet passage (1a) is communicated with a first water inlet end (2a1) of the first flow rate regulating valve core (2a), a first water outlet end (2a2) of the first flow rate regulating valve core (2a) is communicated with the cold water outlet passage (1e), and a first moving valve plate (2a3) of the first flow rate regulating valve core (2a) is driven to rotate by a first motor (3a) to regulate the cold water flow rate; a second flow rate regulating valve core (2b) installed in the second valve core installation cavity (1d), the hot water inlet passage (1b) is communicated with a second water inlet end (2b1) of the second flow rate regulating valve core (2b), a second water outlet end (2b2) of the second flow rate regulating valve core (2b) is communicated with the hot water outlet passage (1f), and a second moving valve plate (2b3) of the second flow rate regulating valve core (2b) is driven to rotate by a second motor (3b) to regulate the hot water flow rate; a balance valve core (10) installed in the third valve core installation cavity (1h), the cold water outlet passage (1e) is communicated with a cold water inlet (101) of the balance valve core (10), the hot water outlet passage (1f) is communicated with a hot water inlet (102) of the balance valve core (10), and a cold water outlet (103) and a hot water outlet (104) of the balance valve core (10) are both communicated with the mixing cavity (1g).

2. The constant temperature controller for controlling water temperature according to claim 1, characterized in that: There are multiple mixed water outlet passages (1i), and a fourth valve core installation cavity (1j) is provided in the valve seat (1). A water distribution valve core (6) is installed in the fourth valve core installation cavity (1j). A water outlet end of the mixing cavity (1g) is communicated with a third water inlet end (61) of the water distribution valve core (6). Multiple third water outlet ends (62) of the water distribution valve core (6) are correspondingly communicated with the respective mixed water outlet passages (1i). A third moving valve plate (63) of the water distribution valve core (6) is driven to rotate by a third motor (3c) to make the third water inlet end (61) select to be communicated with one of the third water outlet ends (62).

3. The constant temperature controller for controlling water temperature according to claim 1, wherein: A manual switch valve core (9) for manually controlling the water outlet of the mixing cavity (1g) is installed in the mixing cavity (1g).

4. The constant temperature controller for controlling the water temperature according to claim 3, characterized in that: A water flow generator (7) is further installed in the mixing cavity (1g), and the manual switch valve core (9) is arranged below or above the water flow generator.

5. The constant temperature controller for controlling the water temperature according to claim 3, characterized in that: The manual switch valve core (9) is a ball valve. The fourth water inlet end (91) of the manual switch valve core (9) is arranged at the bottom, and the fourth water outlet end (92) is arranged at the top. The manual switch valve core (9) is laterally inserted into the mixing water cavity (1g); alternatively, the fourth water inlet end (91) of the manual switch valve core (9) is arranged at the bottom, and the fourth water outlet end (92) is arranged at the side. The manual switch valve core (9) is inserted into the mixing water cavity (1g) from top to bottom and is fixed in the mixing water cavity (1g) by being threadedly connected to the fourth gland (8d) of the mixing water cavity (1g).

6. The thermostat for controlling water temperature according to any one of claims 1 to 5, characterized in that: It further includes a first flow sensor (4a) arranged in the cold water flow channel (1a) to detect the flow rate of cold water; a second flow sensor (4b) arranged in the hot water flow channel (1b) to detect the flow rate of hot water; a first temperature sensor (5a) arranged in the hot water outlet channel (1f) to detect the water temperature of hot water; a second temperature sensor (5b) arranged in the mixing water cavity to detect the water temperature of the mixed water.

7. The constant temperature controller for stably controlling the water temperature according to claim 6, characterized in that: It further includes a third temperature sensor (5c) arranged in the cold water outlet channel (1e) to detect the water temperature of cold water.

8. The constant temperature controller for controlling the water temperature according to claim 2, characterized in that: The cold water outlet channel (1e), the hot water outlet channel (1f), the mixed water outlet channel (1i), the mixing water cavity (1g), the third valve core installation cavity (1h) and the fourth valve core installation cavity (1j) are all located between the first valve core installation cavity (1c) and the second valve core installation cavity (1d). The first valve core installation cavity (1c) is coaxially arranged with the cold water flow channel (1a), the second valve core installation cavity (1d) is coaxially arranged with the hot water flow channel (1b), and the axes of the cold water flow channel (1a) and the hot water flow channel (1b) are parallel and the mouth ends are both downward. The mouth ends of the first valve core installation cavity (1c), the second valve core installation cavity (1d) and the fourth valve core installation cavity (1j) are upward, and the mouth end of the third valve core installation cavity (1h) is downward; The cold water outlet channel (1e) and the hot water outlet channel (1f) are coaxially and horizontally arranged along the first axis (X). The cold water outlet channel (1e) horizontally penetrates the side wall of the first valve core installation cavity (1c), and a first plug (11a) is provided at the perforation position of the side wall of the first valve core installation cavity (1c) for sealing. The hot water outlet channel (1f) horizontally penetrates the side wall of the second valve core installation cavity (1d), and a second plug (11b) is provided at the perforation position of the side wall of the second valve core installation cavity (1d) for sealing; the third valve core installation cavity (1h) is arranged below the first axis (X), and the mixing water cavity (1g) and the fourth valve core installation cavity (1j) are arranged above the first axis (X).

9. The constant temperature controller for controlling the water temperature according to claim 2, characterized in that: The first water inlet end (2a1) of the first flow rate regulating valve core (2a) is arranged at the bottom, and the first water outlet end (2a2) is arranged at the side. The first flow rate regulating valve core (2a) is inserted into the first valve core installation cavity (1c) from top to bottom; The second water inlet end (2b1) of the second flow rate regulating valve core (2b) is arranged at the bottom, and the second water outlet end (2b2) is arranged at the side. The second flow rate regulating valve core (2b) is inserted into the second valve core installation cavity (1d) from top to bottom; The third water inlet end (61) of the water distribution valve core (6) is arranged on the side, and the third water outlet end (62) is arranged at the bottom. The water distribution valve core (6) is inserted into the third valve core installation cavity (1h) from top to bottom.

10. A constant temperature controller for controlling water temperature, characterized in that: Comprising a valve seat (1) having a cold water inlet channel (1a), a hot water inlet channel (1b), a first valve core installation cavity (1c), a second valve core installation cavity (1d), a cold water outlet channel (1e), a hot water outlet channel (1f), a mixing chamber (1g), a fourth valve core installation cavity (1j) and a mixed water outlet channel (1i). The cold water outlet channel (1e) and the hot water outlet channel (1f) communicate with the mixing chamber (1g), and there are multiple mixed water outlet channels (1i); a first flow regulating valve core (2a) installed in the first valve core installation cavity (1c). The cold water inlet channel (1a) communicates with the first water inlet end (2a1) of the first flow regulating valve core (2a), and the first water outlet end (2a2) of the first flow regulating valve core (2a) communicates with the cold water outlet channel (1e). The first moving valve plate (2a3) of the first flow regulating valve core (2a) is driven by a first motor (3a) to rotate to adjust the cold water flow rate; a second flow regulating valve core (2b) installed in the second valve core installation cavity (1d). The hot water inlet channel (1b) communicates with the second water inlet end (2b1) of the second flow regulating valve core (2b), and the second water outlet end (2b2) of the second flow regulating valve core (2b) communicates with the hot water outlet channel (1f). The second moving valve plate (2b3) of the second flow regulating valve core (2b) is driven by a second motor (3b) to rotate to adjust the hot water flow rate; a water distribution valve core (6) installed in the fourth valve core installation cavity (1j). The water outlet end of the mixing chamber (1g) communicates with the third water inlet end (61) of the water distribution valve core (6). Multiple third water outlet ends (62) of the water distribution valve core (6) respectively communicate with the mixed water outlet channels (1i). The third moving valve plate (63) of the water distribution valve core (6) is driven by a third motor (3c) to rotate so that the third water inlet end (61) is selectively communicated with one of the third water outlet ends (62).

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