Internet of Things temperature balancing valve and heating system using the same

Abstract

The present invention discloses an Internet of Things temperature balancing valve and a heating system using the Internet of Things temperature balancing valve. The Internet of Things temperature balancing valve includes an actuator and a valve. The power output end of the actuator drives the valve core to adjust the opening through the valve stem of the valve. It also includes a temperature sensor with a temperature measuring rod. The temperature measuring rod is inserted into the valve stem and the valve core, and its temperature measuring end is placed in the accommodating cavity of the valve core that is connected to the medium flow channel. Its wiring end is placed in the actuator and is connected to the circuit board signal of the actuator. By applying the present invention, the temperature sensor is completely placed in the actuator and the valve, which can completely avoid problems such as aging damage caused by the exposure of communication and power cables. In addition, through further structural and process optimization, the product's occupied space and manufacturing costs can be greatly reduced, and it has good application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal control, and in particular to an Internet of Things temperature balancing valve and a heating system using the balancing valve. Background Art

[0002] The most common method for achieving hydraulic balance in heating systems is to install balancing valves in the piping system. By collecting the operating parameters of each balancing valve and adjusting each valve in the system to its theoretical operating position based on a debugging strategy, the reliability and controllability of IoT temperature balancing valves are particularly important.

[0003] Conventional technology typically uses a temperature sensor to measure the temperature of the medium inside a valve. One end of the sensor is connected to the valve or pipe, while the other end is connected to a device with an upload function via a visible signal cable. However, since the signal cable is exposed, it is prone to aging and damage during use, directly affecting system control.

[0004] In view of this, it is urgent to optimize the structure of the existing Internet of Things temperature balancing valve so that the possibility of external temperature sensor damage can be effectively avoided on the basis of simplifying the structure. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an Internet of Things temperature balancing valve and a heating system using the balancing valve, so as to improve the reliability of the Internet of Things temperature balancing valve through structural optimization.

[0006] The present invention provides an Internet of Things temperature balancing valve, which includes an actuator and a valve. The power output end of the actuator drives the valve core to adjust the opening through the valve stem of the valve; it also includes a temperature sensor with a temperature measuring rod, which is inserted into the valve stem and the valve core, and its temperature measuring end is placed in the accommodating cavity of the valve core that is connected to the medium flow channel, and its wiring end is placed in the actuator and connected to the circuit board signal of the actuator.

[0007] Preferably, the valve body of the valve is provided with a valve stem adapter hole, the valve stem is inserted into the valve stem adapter hole, and a first sealing ring is provided between the two; a second sealing ring is provided between the first insertion hole of the valve stem and the temperature measuring rod.

[0008] Preferably, the valve body of the valve stem has a first mounting surface, the housing of the actuator has a second mounting surface, and the valve and the actuator are detachably connected via the first mounting surface and the second mounting surface.

[0009] Preferably, the valve is a ball valve, and a flow regulating structure adapted to the spherical valve core is formed on the valve seat of the valve body.

[0010] Preferably, the motor of the actuator outputs power through a gear transmission system, and the power output end is located at the output gear shaft of the gear transmission system. The output gear shaft has a second insertion hole coaxially arranged with the first insertion hole, and the temperature measuring rod is sequentially inserted into the first insertion hole and the second insertion hole.

[0011] Preferably, the output gear shaft extends out of the housing of the actuator, and the second mounting hole is a stepped hole with an external large diameter section, the valve stem is a stepped rod with an external small diameter section, and the external small diameter section of the valve stem is embedded between the temperature measuring rod and the external large diameter section of the second mounting hole; the extended end of the output gear shaft is provided with a coaxially rotating pointer, and the housing surface is correspondingly provided with scale marks.

[0012] Preferably, the first mounting surface and the second mounting surface are two groups symmetrically arranged relative to the valve stem, and the pointer and the scale mark are located between the two groups of the first mounting surface and the second mounting surface; the pointer has an annular mounting portion that is sleeved on the protruding end of the output gear shaft, and a circumferential limit pair is provided between the annular mounting portion and the protruding end so that the two can rotate coaxially.

[0013] Preferably, the housing of the actuator is formed by an upper cover and a lower housing, the upper box plate is clamped and fixed to the lower housing, and a chamber for accommodating the gear transmission system is formed between the two; the motor is clamped and fixed to the upper box plate, and the circuit board is arranged above the motor and is clamped and fixed to the upper box plate; a cable passing hole is provided on the lower housing, and a U-shaped cable clamping groove is correspondingly provided along the plate edge of the upper box plate, and the width of the U-shaped cable clamping groove increases progressively from the inside to the outside.

[0014] Preferably, the circuit board has at least one communication function of wireless communication NB / Lora / 4G / 5G and wired communication RS485 / Mbus; an auxiliary circuit board capable of short-range wireless communication is connected above the circuit board to set the parameters of the Internet of Things temperature balancing valve, and the working power provided to the circuit board can be an external power supply or a built-in battery.

[0015] The present invention also provides a heating system, including a water supply switch valve and a return water regulating valve, wherein the water supply switch valve and the return water regulating valve both adopt the Internet of Things temperature balancing valve as described above, the water supply switch valve and the return water regulating valve are electrically and communicatively connected through an internal cable, and the return water regulating valve is electrically and communicatively connected to an external control system through an external cable.

[0016] Compared to the prior art, the present invention innovatively proposes an IoT temperature balancing valve that includes a temperature sensor. Specifically, the temperature sensor's temperature measuring rod is inserted into the valve stem and valve core of the balancing valve, with its temperature measuring end positioned within a chamber in the valve core that communicates with the medium flow path, allowing it to contact the water flow within the valve to collect the medium's temperature. The temperature measuring rod's wiring end is positioned within the actuator and connected to the actuator's circuit board signal, thereby enabling connection to the communication circuit. This arrangement completely integrates the temperature sensor into the actuator and valve, completely avoiding issues such as aging damage caused by exposed signal wiring.

[0017] In a preferred embodiment of the present invention, the valve stem's outer periphery of the valve body has a first mounting surface, and the actuator housing has a second mounting surface. The valve and actuator are detachably connected via the first and second mounting surfaces. In comparison, the actuator and valve in this embodiment are directly connected, eliminating the need for brackets or connecting sleeves. This structural optimization significantly reduces the product's overall dimensions, resulting in a smaller footprint and wide applicability to narrow pipeline spaces.

[0018] In another preferred embodiment of the present invention, for spherical valves, this embodiment arranges a flow regulating structure adapted to the spherical valve core on the valve seat of the valve body. That is to say, the structure with the flow regulating function can be integrally processed and formed with the ball valve seat, and has the characteristics of simple structure and good processing technology.

[0019] In another preferred embodiment of the present invention, a coaxially rotating pointer is provided at the extended end of the output gear shaft of the actuator, and corresponding scale marks are provided on the surface of the actuator housing; with such an arrangement, after the valve core is adjusted into position, the pointer rotates synchronously with the valve core, valve stem and output gear shaft, and is centered on the corresponding scale, making it convenient for the user to intuitively read the current valve flow parameters.

[0020] In another preferred embodiment of the present invention, the water supply switch valve and return water regulating valve of the user's heating system adopt the aforementioned Internet of Things temperature balancing valve, and the water supply switch valve and the return water regulating valve are electrically and communicatively connected through internal cables, and the return water regulating valve is electrically and communicatively connected to the external control system through external cables; with such an arrangement, the same control system can be used to realize the relevant control of the water supply switch valve and the return water regulating valve, which can effectively save hardware costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the Internet of Things temperature balancing valve described in the specific implementation method;

[0022] Figure 2 This is a cross-sectional view of the internal structure of the Internet of Things temperature balancing valve described in the specific implementation method;

[0023] Figure 3Schematic diagram of the matching relationship between the valve core and the valve seat in the fully open state;

[0024] Figure 4 Schematic diagram of valve flow channel area under different opening states;

[0025] Figure 5 It is an exploded view of the assembly of the actuator in the specific embodiment;

[0026] Figure 6 Schematic diagram of the IoT temperature balancing valve with the actuator housing partially cut away;

[0027] Figure 7 It is a structural schematic diagram of the gear transmission system described in the specific embodiment;

[0028] Figure 8 Schematic diagram of the assembly relationship between the output gear shaft and the pointer;

[0029] Figure 9 A schematic diagram of the control relationship between the water supply switch valve and the return water regulating valve of the user heating system described in the specific implementation manner is shown.

[0030] In the picture:

[0031] Actuator 10, circuit board 11, housing 12, lower housing 121, second mounting surface 1211, chamber 1212, scale mark 1213, through-hole 1214, upper cover 122, upper box plate 13, mounting groove 131, gear transmission system 14, output gear shaft 141, second insertion hole 1411, groove 1412, input gear 142, multi-stage gear 143, motor 15, pointer 16, annular mounting portion 161, protrusion 162, cable 17, plug 171, sealing sleeve 18, auxiliary circuit board 19, valve 20, valve stem 21, first insertion hole 211, valve core 22, accommodating chamber 221, valve body 23, valve stem adapter hole 231, first mounting surface 232, valve seat 233, first sealing ring 24, second sealing ring 25, temperature sensor 30, temperature measuring rod 31, temperature measuring terminal 311, terminal 312;

[0032] Water supply on-off valve 91 , return water regulating valve 92 , internal cable 93 , external cable 94 , external control system 95 . DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Without loss of generality, this embodiment uses the ball valve shown in the figure as the main component to describe the IoT temperature balancing valve provided by this solution in detail. After assembly, the valve's inlet and outlet are connected to the user's system piping. It should be understood that parameters related to the valve's function, such as the valve opening and flow rate curve, do not constitute a substantial limitation on the IoT temperature balancing valve claimed in this application.

[0035] See Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the overall structure of the Internet of Things temperature balancing valve in this embodiment. Figure 2 This is a cross-sectional view of the internal structure of the Internet of Things temperature balancing valve described in this embodiment.

[0036] This IoT temperature-balancing valve comprises an actuator 10, a valve 20, and a temperature sensor 30. The actuator 10 interacts with the control system and provides the driving force for adjusting the valve's opening. Specifically, the power output of the actuator 10 drives the valve core 22 through the valve stem 21 of the valve 20 to adjust the valve's opening. The temperature sensor 30 collects the temperature of the medium within the valve and provides real-time feedback to the actuator 10, which serves as basic data for system control.

[0037] In this solution, the temperature measuring rod 31 of the temperature sensor 30 is inserted into the valve stem 21 and the valve core 22, and its temperature measuring end 311 is placed in the accommodating cavity 221 of the valve core 22 that is connected to the medium flow channel, and contacts the water flow in the valve 20 to collect the medium temperature; its terminal 312 is placed in the actuator 10 and is connected to the circuit board 11 of the actuator 10 for signal connection to the communication circuit. With this arrangement, the temperature sensor 30 is completely placed in the actuator 10 and the valve 20, and the signal line (not shown in the figure) is also built in, which can avoid problems such as aging damage caused by exposure. Please refer to Figure 3 , Figure 3 This is a schematic diagram of the matching relationship between the valve core and the valve seat in the fully open state. The internal components of the actuator 10 are omitted in this figure to clearly show the built-in state of the temperature measuring rod 31.

[0038] Combine Figure 2 and Figure 3As shown, the valve body 23 of the valve 20 is provided with a valve stem adapter hole 231. Here, based on the illustrated assembly relationship in which the actuator 10 is located above the valve 20, the valve stem adapter hole 231 is located at the upper end of the valve body 23. The valve stem 21 is inserted into the valve stem adapter hole 231, and a first sealing ring 24 is provided between the two. At the same time, a second sealing ring 25 is provided between the first insertion hole 211 of the valve stem 21 and the temperature measuring rod 31. In this way, a reliable seal of the corresponding assembly relationship can be ensured in the state of use. It should be noted that the above-mentioned sealing relationship is not limited to the structure and arrangement shown in the figure. As long as the reliable sealing between the adapter components can be met, it is within the scope of protection requested in this application.

[0039] In order to effectively improve the operability of the Internet of Things temperature balancing valve, an auxiliary circuit board 19 with NFC (Near Field Communication) function can be set above the circuit board 11. Specifically, it can be connected in the form of pins, which makes assembly and maintenance convenient and quick. When in use, the parameters of the Internet of Things temperature balancing valve can be set by cooperating with a device with NFC reading and writing. Accordingly, the circuit board 11 can have at least one communication function of wireless communication such as NB (Narrow Band Internet of Things) / Lora (Long Range Radio) / 4G / 5G or wired communication such as RS485 / Mbus (symphonic mbus); wherein, the working power provided to the circuit board 11 can be an external power supply or a built-in battery.

[0040] It is understandable that the specific implementation of the above power supply method is not the core invention of this application, so it will not be described in detail in this article.

[0041] In order to further optimize the structure and reduce the product's external dimensions, it is preferred that the valve body 23 of the valve 20 is directly connected to the housing 12 of the actuator 10. As shown in the figure, the valve body 23 on the periphery of the valve stem 21 has a first mounting surface 232, and the housing 12 of the actuator 10 has a second mounting surface 1211. The valve 20 and the actuator 10 are detachably connected via the first mounting surface 232 and the second mounting surface 1211. The actuator of this solution is directly connected to the valve, and adopts transition connection components such as bracket-free and connecting sleeves, which greatly reduces the external dimensions of the product. It takes up less space. It should be understood that the "detachable connection" here can be achieved in different ways, as long as it is convenient for assembly, maintenance and disassembly; for example, but not limited to, the threaded fasteners shown in the figure, combined with Figure 3As shown, a threaded hole is provided on the valve body 23, and a countersunk bolt adapter hole is provided on the housing 12 (lower housing 121) of the actuator 10. The countersunk bolt is screwed into the inside of the housing 12 to achieve the above-mentioned detachable connection. With this arrangement, the fasteners cannot be observed from the outside, the external structure is simplified and has a good appearance.

[0042] For the ball valve core 22, the flow regulating structure adapted thereto is provided on the valve seat 233 of the valve body 23, and combined with Figure 2 and Figure 3 As shown, the structure with flow regulation function can be integrally processed with the ball valve seat 233, which has the characteristics of simple structure and good processing technology. Figure 4 The diagram shows the flow channel orifice area of ​​valves with different openings. The shaded area in the figure represents the flow channel orifice area of ​​valve 20. As the valve opens from closed to open, the flow area increases as the valve opening increases. In the 0-30% opening range, the flow area increases slowly as the opening increases, effectively increasing the valve's adjustment accuracy. In the 30%-80% opening range, the flow area increases rapidly as the opening increases. In the 80%-100% opening range, the flow area increases slowly. Of course, in order to meet the requirements of the equal percentage curve, the actuator needs to calculate and adjust the valve opening, ultimately making the valve's inherent flow curve close to the equal percentage curve.

[0043] See further Figure 5 and Figure 6 ,in, Figure 5 This is the assembly exploded view of the actuator. Figure 6 Schematic diagram of the IoT temperature balancing valve with the actuator housing partially cut away.

[0044] In this solution, the housing 12 of the actuator 10 is formed by an upper cover 122 and a lower housing 121. The upper box plate 13 is snap-fitted and fixed to the lower housing 121, and a chamber 1212 for accommodating the gear transmission system 14 is formed between the two. The motor 15 is snap-fitted and fixed to the upper box plate 13, and the circuit board 11 is arranged above the motor 15 and snap-fitted and fixed to the upper box plate 13. In the case of setting up an NFC sub-circuit board, the sub-circuit board can be set above the main circuit board 11 and specifically connected to the main circuit board 11 through a plug. It should be understood that the snap-fitting and fixing between components can be achieved by using plastic clips and bayonet structures with different configurations. Ordinary technicians in this field can make reasonable settings based on the design requirements of effective utilization of internal space and compactness, so this article will not go into details.

[0045] The upper cover 122 and the lower shell 121 are preferably welded by ultrasonic welding to prevent water and foreign matter, thereby improving the overall protection level of the actuator 10 .

[0046] The motor 15 outputs power through the gear transmission system 14, and its power output end is located at the output gear shaft 141 of the gear transmission system 14. Figure 7 As shown in the schematic diagram of the gear transmission system, the motor 15 drives the input gear 142, which then rotates through a transmission structure comprised of stacked intermediate multi-stage gears 143, ultimately outputting the output through the output gear shaft 141. This stacked, multi-stage gear structure allows for a compact gearbox design. Furthermore, the output gear shaft 141 has a second insertion hole 1411 coaxially positioned with the first insertion hole 211. The temperature measuring rod 31 is sequentially inserted into the first insertion hole 211 and the second insertion hole 1411.

[0047] Among them, the output gear shaft 141 extends out of the housing 12 (lower housing 121) of the actuator 10. In the assembly relationship, the second insertion hole 1411 is a stepped hole with an external large diameter section. Correspondingly, the valve stem 21 is a stepped rod with an external small diameter section. Figure 2 and Figure 3 As shown, the outer small-diameter section of the valve stem 21 is embedded between the temperature measuring rod 31 and the outer large-diameter section of the second insertion hole 1411. It should be noted that the use of directional terms such as "inside" and "outside" in this document is defined based on the assembly relationship between the components themselves. For example, the "outside" of the second insertion hole 1411 refers to the end away from the actuator 10 body, and the "outside" of the valve stem 21 refers to the end away from the valve 20 body.

[0048] On this basis, the extended end of the output gear shaft 141 is equipped with a coaxially rotating pointer 16. Correspondingly, the surface of the housing 12 (lower housing 121) is provided with scale markings 1213. With this arrangement, when the valve core 22 is adjusted into position, the pointer 16 rotates synchronously with the valve core 22, valve stem 21, and output gear shaft 141, aligning the corresponding scale markings, allowing the user to intuitively read the current valve flow parameters. The first mounting surface 232 and the second mounting surface 1211 are both symmetrically arranged relative to the valve stem 21, with the pointer 16 and scale markings 1213 located between the two sets of first mounting surfaces 232 and second mounting surfaces 1211.

[0049] In addition, the pointer 16 has an annular mounting portion 161 that is fitted on the outwardly extending end of the output gear shaft 141. A circumferential limit pair is provided between the annular mounting portion 161 and the outwardly extending end so that the two can rotate coaxially. Figure 8 , which shows the assembly relationship between the output gear shaft 141 and the pointer 16.

[0050] It should be noted that the circumferential limit pair can be implemented in different structural forms, such as but not limited to Figure 8 The exemplary scheme shown in FIG. Figure 8As shown, the annular mounting portion 161 is provided with a protrusion 162, and correspondingly, the output gear shaft 141 is provided with a groove 1412. Here, the protrusion 162 of the pointer 16 is placed in the groove 1412 of the output gear shaft 141 to establish a circumferential limit pair, thereby achieving the purpose of synchronous rotation of the pointer 16 and the output gear shaft 141.

[0051] Furthermore, the lower housing 121 is provided with a cable insertion hole 1214. This arrangement prevents condensation on the surface of the actuator 10 from entering the interior when the actuator 10 is mounted upright, thereby preventing condensation from affecting the normal operating environment of the internal components. The upper panel 13 is provided with a U-shaped cable insertion slot 131. The cable 17 passes through the cable insertion hole 1214 in the lower housing 121 and the U-shaped cable insertion slot 131 in the upper panel 13, and is connected to the circuit board 11 via the cable plug 171. This ensures reliable signal transmission and easy assembly and disassembly. Specifically, a sealing sleeve 18 is built into the cable insertion hole 1214 to fix the cable 17 and form a good seal; and the width of the U-shaped cable clamping groove 131 increases gradually from the inside to the outside. That is to say, the U-shaped cable clamping groove 131 is provided with a variety of adaptive clamping groove widths according to the different wire diameters of the cables 17, which can more firmly fix cables of different thicknesses and has better adaptability.

[0052] In addition to the aforementioned Internet of Things temperature balancing valve, this embodiment also provides a user heating system, which includes a water supply switching valve 91 and a return water regulating valve 92.

[0053] See Figure 9 The diagram shows the control relationship between the water supply on / off valve and the return water regulating valve of a user heating system. Here, the water supply on / off valve 91 and the return water regulating valve 92 can both utilize the IoT temperature balancing valve described above. Specifically, the water supply on / off valve 91 and the return water regulating valve 92 are electrically and communicatively connected via an internal cable 93, while the return water regulating valve 92 is electrically and communicatively connected to an external control system 95 via an external cable 94. The remaining components and control principles of this heating system are not the core invention of this application and can be implemented using existing technologies by those skilled in the art, so they will not be detailed here.

[0054] Compared with the prior art, this solution can use the same control system to achieve the relevant control of the water supply switch valve 91 and the return water regulating valve 92, which can effectively save hardware costs.

[0055] It should be noted that the above-mentioned embodiments provided in this embodiment are not limited to the hydraulic balancing ball valve shown in the figure. It should be understood that based on the core concept of this application, it can also be applied to other types of Internet of Things temperature balancing valves, and such applications are also within the scope of protection requested by this application.

[0056] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An IoT temperature balancing valve, comprising an actuator and a valve, wherein the power output end of the actuator drives the valve core to adjust the opening through the valve stem of the valve; characterized in that: Also includes: A temperature sensor having a temperature measuring rod, the temperature measuring rod being inserted into the valve stem and the valve core, with its temperature measuring end being placed in an accommodating cavity of the valve core communicating with the medium flow channel, and its wiring end being placed in the actuator and connected to the actuator's circuit board signal; The motor of the actuator outputs power through a gear transmission system, and the power output end is located at the output gear shaft of the gear transmission system. The output gear shaft has a second insertion hole coaxially arranged with the first insertion hole of the valve stem, and the temperature measuring rod is sequentially inserted into the first insertion hole and the second insertion hole; the output gear shaft extends out of the housing of the actuator, and the second insertion hole is a stepped hole with an external large-diameter section, and the valve stem is a stepped rod with an external small-diameter section, and the external small-diameter section of the valve stem is embedded between the temperature measuring rod and the external large-diameter section of the second insertion hole.

2. The Internet of Things temperature balancing valve according to claim 1, characterized in that: The valve body of the valve is provided with a valve stem adapting hole, the valve stem is inserted into the valve stem adapting hole, and a first sealing ring is provided between the two; a second sealing ring is provided between the first insertion hole of the valve stem and the temperature measuring rod.

3. The Internet of Things temperature balancing valve according to claim 2, characterized in that: The valve body of the valve stem has a first mounting surface, the housing of the actuator has a second mounting surface, and the valve and the actuator are detachably connected via the first mounting surface and the second mounting surface.

4. The Internet of Things temperature balancing valve according to claim 3, characterized in that: The valve is a ball valve, and a flow regulating structure adapted to the valve core of the ball valve is formed on the valve seat of the valve body.

5. The Internet of Things temperature balancing valve according to claim 3, characterized in that: The extended end of the output gear shaft is provided with a coaxially rotating pointer, and the surface of the housing is correspondingly provided with scale marks.

6. The Internet of Things temperature balancing valve according to claim 5, characterized in that: The first mounting surface and the second mounting surface are both two groups symmetrically arranged relative to the valve stem, and the pointer and the scale mark are located between the two groups of the first mounting surface and the second mounting surface; the pointer has an annular mounting portion that is sleeved on the protruding end of the output gear shaft, and a circumferential limit pair is provided between the annular mounting portion and the protruding end so that the two can rotate coaxially.

7. The Internet of Things temperature balancing valve according to claim 1, characterized in that: The housing of the actuator is formed by an upper cover and a lower housing, the upper box plate is clamped and fixed to the lower housing, and a chamber for accommodating the gear transmission system is formed between the two; the motor is clamped and fixed to the upper box plate, and the circuit board is arranged above the motor and is clamped and fixed to the upper box plate; a cable passing hole is provided on the lower housing, and a U-shaped cable clamping groove is correspondingly provided along the plate edge of the upper box plate, and the width of the U-shaped cable clamping groove increases from the inside to the outside.

8. The Internet of Things temperature balancing valve according to claim 7, characterized in that: The circuit board has at least one communication function among wireless communication NB / Lora / 4G / 5G and wired communication RS485 / Mbus; an auxiliary circuit board capable of short-range wireless communication is connected above the circuit board to set the parameters of the Internet of Things temperature balancing valve, and the working power provided to the circuit board can be an external power supply or a built-in battery.

9. A heating system comprising a water supply switch valve and a return water regulating valve, characterized in that: The water supply switch valve and the return water regulating valve both adopt the Internet of Things temperature balancing valve according to any one of claims 1 to 8, the water supply switch valve and the return water regulating valve are electrically and communicatively connected via an internal cable, and the return water regulating valve is electrically and communicatively connected to an external control system via an external cable.

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