A smart heating system for instant water heaters

Abstract

This invention discloses an intelligent heating system for instant water heaters, comprising an inlet water area including an inlet water temperature detection module mounted on an inlet pipe; an outlet water area including an outlet water temperature detection module mounted on an outlet water pipe; and a control module. The signal output terminal of the inlet water temperature detection module is connected to the second signal input terminal of the control module, the signal output terminal of the outlet water temperature detection module is connected to the third signal input terminal of the control module, and the first signal output terminal of the control module is connected to the signal input terminal of a stepper motor drive module. If the outlet water temperature is lower than the preset value, the control module calculates the required water inlet flow based on the difference between the outlet water temperature setpoint and the inlet water temperature to adjust the outlet water temperature to reach the preset value, allowing users to use hot water at the preset temperature and improving the user experience.

Description

[Technical Field]

[0001] This application relates to the field of intelligent control technology, and in particular to an intelligent heating system for instant water heaters. [Background Technology]

[0002] Instantaneous water heaters are water heaters that do not require preheating and provide hot water immediately after turning on the water and electricity. However, in actual use, the unstable water pressure inside the instantaneous water heater can cause the outlet water temperature to not consistently reach the preset value. This results in the water flowing to the user being sometimes hot and sometimes cold, causing inconvenience and reducing the user experience. [Summary of the Invention]

[0003] This invention discloses an intelligent heating system for instant water heaters to solve the problem that the outlet water temperature of instant water heaters cannot stably reach the preset value, resulting in a poor user experience.

[0004] To address the above problems, the present invention proposes the following solution: an intelligent heating system for instantaneous water heaters, comprising a power supply module that provides power to the intelligent control system, and further comprising:

[0005] The water inlet area includes an inlet pipe connected to the outside, an inlet water temperature detection module and an inlet water volume detection module installed on the inlet pipe;

[0006] The water outlet area includes an outlet pipe connected to the outside and an outlet water temperature detection module installed on the outlet pipe;

[0007] The heating zone includes several heating pipes connected in sequence, and each heating pipe is equipped with a heating wire;

[0008] A stepper motor drive module is used to adjust the water inlet flow rate through the inlet pipe;

[0009] The control module has the following components: the signal output terminal of the inlet water volume detection module is connected to the first signal input terminal of the control module; the signal output terminal of the inlet water temperature detection module is connected to the second signal input terminal of the control module; the signal output terminal of the outlet water temperature detection module is connected to the third signal input terminal of the control module; and the first signal output terminal of the control module is connected to the signal input terminal of the stepper motor drive module.

[0010] The intelligent heating system for an instantaneous water heater as described above further includes a water heater body. The water heater body includes a shell and an insulated heating inner tank disposed within the shell. The insulated heating inner tank has a water inlet area, a heating area, and a water outlet area that are connected in sequence. The water inlet area and the water outlet area are arranged adjacent to each other and located on one side of the heating area. The heating area is close to the edge of the insulated heating inner tank. The water inlet area also includes a plurality of water inlet pipes that are connected in sequence. The water outlet area also includes a plurality of water outlet pipes that are connected in sequence. The water inlet end of one of the water inlet pipes is connected to the water inlet pipe. The water inlet end of one of the heating pipes is connected to the water outlet end of one of the water inlet pipes. The water outlet end of one of the heating pipes is connected to the water inlet end of one of the water outlet pipes. The water outlet end of one of the water outlet pipes is connected to the water outlet pipe.

[0011] As described above, an intelligent heating system for an instant water heater includes an insulating upper cover located on the upper part of the insulating heating inner tank and an insulating lower cover located on the lower part of the insulating heating inner tank. The insulating upper cover and the insulating lower cover are detachably connected to the insulating heating inner tank. The insulating upper cover has a plurality of upper channels, and the insulating lower cover has a plurality of lower channels. The upper channels are separated from each other by the wall of the insulating upper cover, and the lower channels are separated from each other by the wall of the insulating lower cover. The water inlet pipes are connected in series through the upper channels and the lower channels to form a series water inlet circuit. The heating pipes are connected in series through the upper channels and the lower channels to form a series heating circuit. The water outlet pipes are connected in series through the upper channels and the lower channels to form a series water outlet circuit. The series water inlet circuit, the series heating circuit, and the series water outlet circuit are connected in series through the upper channels and the lower channels to form a series water circuit.

[0012] As described above, in an intelligent heating system for an instant water heater, each heating pipe has a heating wire with a first terminal block located at the top and a second terminal block located at the bottom at both ends. All first terminals are connected to the live wire, and all second terminals are connected to the neutral wire. The insulated heating tank is also provided with a third terminal block and a fourth terminal block. One end of the third terminal block is connected to the water inlet pipe and the other end is grounded. One end of the fourth terminal block is connected to the water outlet pipe and the other end is grounded.

[0013] As described above, an intelligent heating system for an instant water heater is provided with a first electroplated connector at the connection between the first terminal and the heating wire, and a second electroplated connector at the connection between the second terminal and the heating wire. The first electroplated connector and the second electroplated connector are respectively fixedly connected to the heating wire to protect the heating wire. The first electroplated connector is integrally formed with the first terminal, and the second electroplated connector is integrally formed with the second terminal.

[0014] As described above, an intelligent heating system for an instant water heater includes an upper sealing element between the top of the insulated heating inner tank and the insulated upper cover, and a lower sealing element between the bottom of the insulated heating inner tank and the insulated lower cover. The top of the insulated heating inner tank has a first mounting groove that mates with the upper sealing element, the bottom of the insulated heating inner tank has a second mounting groove that mates with the lower sealing element, the insulated upper cover has a third mounting groove that mates with the upper sealing element, and the insulated lower cover has a fourth mounting groove that mates with the lower sealing element. Both the insulated upper and lower covers have several positioning posts, and the top and bottom of the insulated heating inner tank have positioning holes that mate with the positioning posts.

[0015] As described above, an intelligent heating system for an instant water heater includes at least a heating inlet pipe and a heating outlet pipe. The intelligent heating system for an instant water heater also includes a cooling pipe disposed between the heating pipes and close to the heating outlet pipe. The inlet end of the cooling pipe and the inlet end of the heating inlet pipe are both connected to the inlet pipe, and the outlet end of the cooling pipe is connected to the outlet end of the heating inlet pipe.

[0016] As described above, an intelligent heating system for an instant water heater includes an inlet water flow detection module comprising an inlet water flow detection connection terminal CN4, a resistor R29, and a resistor R43. The power output terminal of the power supply module is connected to the first terminal of the inlet water flow detection connection terminal CN4, and the second terminal of the inlet water flow detection connection terminal CN4 is connected to the first terminal of the resistor R29. A resistor R43 is connected between the power output terminal of the power supply module and the first terminal of the resistor R29. The second terminal of the resistor R29 is connected to the first signal input terminal of the control module. The third terminal of the inlet water flow detection connection terminal CN4 is grounded. The inlet water temperature detection module includes an inlet water temperature detection connection terminal CN6, a resistor R28, and a resistor R33. The power output terminal of the power supply module is connected to the first terminal of the inlet water temperature detection connection terminal CN6. The second terminal of N6 is connected to the first terminal of resistor R28. A resistor R33 is connected between the power output terminal of the power supply module and the first terminal of resistor R28. The second terminal of resistor R28 is connected to the second signal input terminal of the control module. The third terminal of the inlet water temperature detection connection terminal CN6 is grounded. The outlet water temperature detection module includes an outlet water temperature detection connection terminal CN7, resistor R26, and resistor R32. The power output terminal of the power supply module is connected to the first terminal of outlet water temperature detection connection terminal CN7. The second terminal of outlet water temperature detection connection terminal CN7 is connected to the first terminal of resistor R26. A resistor R32 is connected between the power output terminal of the power supply module and the first terminal of resistor R26. The second terminal of resistor R26 is connected to the third signal input terminal of the control module. The third terminal of outlet water temperature detection connection terminal CN7 is grounded.

[0017] As described above, an intelligent heating system for an instant water heater includes a power supply module comprising a rectifier module connected to the power grid, a primary-side feedback module, a transformer element T1, and a step-down module. The positive terminal of the rectifier module is connected to the first end of the primary winding of the transformer element T1, the second end of the primary winding of the transformer element T1 is connected to the first end of the primary-side feedback module, the second end of the primary-side feedback module is connected to the negative terminal of the rectifier module, the secondary winding of the transformer element T1 outputs a 12V voltage for power supply, the secondary winding of the transformer element T1 is connected to the power input terminal of the step-down module, and the power output terminal of the step-down module outputs a 5V voltage for power supply.

[0018] As described above, an intelligent heating system for an instant water heater includes a power supply module further comprising a diode D1 and an inductor L1. The positive terminal of diode D1 is connected to the positive terminal of the rectifier module, the negative terminal of diode D1 is connected to the first terminal of inductor L1, and the second terminal of inductor L1 is connected to the first terminal of the primary winding of transformer T1. The primary-side feedback module includes a primary-side feedback chip U1, a diode D2, resistors R1, R2, R7, R8, and R14. The positive terminal of the rectifier module is connected to the first terminal of resistor R1, the second terminal of resistor R1 is connected to the current sampling terminal of the primary-side feedback chip U1, the positive terminal of the rectifier module is connected to the first terminal of resistor R2, and the second terminal of resistor R2 is connected to the... The current sampling terminal of the primary-side feedback chip U1 is connected, the positive terminal of the rectifier module is connected to the first terminal of the resistor R14, the second terminal of the resistor R14 is connected to the voltage sampling terminal of the primary-side feedback chip U1, the first terminal of the secondary-side power supply winding of the transformer element T1 is connected to the first terminal of the resistor R7, the second terminal of the resistor R7 is connected to the voltage sampling terminal of the primary-side feedback chip U1, the first terminal of the secondary-side power supply winding of the transformer element T1 is connected to the first terminal of the resistor R8, the second terminal of the resistor R8 is connected to the positive terminal of the diode D2, the negative terminal of the diode D2 is connected to the power input terminal of the primary-side feedback chip U1, and the drain pin of the primary-side feedback chip U1 is connected to the second terminal of the secondary-side power supply winding of the transformer element T1.

[0019] 1. In this embodiment of the invention, the inlet water temperature detection module detects the water temperature flowing into the instant water heater from the inlet pipe, and the outlet water temperature detection module detects the water temperature flowing out of the instant water heater from the outlet pipe. If the outlet water temperature is lower than the preset outlet water temperature, the control module calculates the amount of water to be controlled based on the difference between the outlet water temperature setting and the inlet water temperature. The control module then sends a corresponding signal to the stepper motor drive module to control the amount of water entering the water, thereby adjusting the outlet water temperature to reach the preset value. When the water entering the water volume detection module detects that the water entering the water volume has reached the calculated value, the control module controls the stepper motor drive module to stop the water entering the water, so that the outlet water temperature reaches the preset value more stably. This makes it easier for users to use hot water at the preset temperature, improves the user experience, and solves the problem that the outlet water temperature of instant water heaters cannot stably reach the preset value, resulting in a poor user experience.

[0020] 2. The inlet pipe, heating pipe, and outlet pipe are connected in sequence to form a series water circuit, which further extends the total length of the water circuit, increases the water flow, and increases the water resistance, thereby enhancing the anti-electric shock effect. This makes the water outlet of the water heater less conductive after heating, enhancing the safety of the water heater. Moreover, the extended water circuit enables bare wire heating technology to directly heat the cold water in contact with the heating wire. The individual heating pipe increases the water output of the water heater, and the use of a separate heating wire effectively improves the heating efficiency of the water heater.

[0021] 3. Part of the cold water in the inlet pipe is introduced into the heating inlet pipe and part is introduced into the cooling pipe. Finally, the water is collected at the outlet of the heating inlet pipe and enters the next stage heating pipe for heating. By placing the cooling pipe close to the heating outlet pipe, the cooling pipe can absorb the heat of the heating outlet pipe to a greater extent, thereby reducing the residual temperature of the inner wall of the heating outlet pipe and effectively preventing scale buildup inside the heating pipe. [Attached Image Description]

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a schematic diagram of the circuit connection in this embodiment;

[0024] Figure 2 This is an exploded view of this embodiment;

[0025] Figure 3 Decomposition of the insulated heating liner in this embodiment Figure 1 ;

[0026] Figure 4 Decomposition of the insulated heating liner in this embodiment Figure 2 ;

[0027] Figure 5 This is a top structural diagram of the insulated heating inner liner in this embodiment;

[0028] Figure 6 This is a bottom structural diagram of the insulated heating inner liner in this embodiment;

[0029] Figure 7 This is a schematic diagram of the heating wire in this embodiment.

[0030] Figure 8 This is a partial circuit diagram of the power supply module in this embodiment;

[0031] Figure 9 This is another part of the circuit diagram of the power supply module in this embodiment;

[0032] Figure 10 This is a partial circuit diagram of the inlet water flow detection module, the inlet water temperature detection module, and the outlet water temperature detection module in this embodiment;

[0033] Figure 11 This is a partial circuit diagram of the overhead spray control module, the side spray control module, and the shower head control module in this embodiment;

[0034] Figure 12 This is a partial circuit diagram of the control module in this embodiment;

[0035] Figure 13 This is a partial circuit diagram of the leakage current protection module in this embodiment;

[0036] Figure 14 This is a partial circuit diagram of the thyristor control module in this embodiment;

[0037] Figure 15 This is a partial circuit diagram of the stepper motor drive module in this embodiment.

Detailed Implementation Methods

[0038] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0039] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of the present invention, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] like Figure 1-15 As shown, an intelligent heating system for instant water heaters includes a power supply module that provides power to the intelligent control system. The system is characterized by further comprising:

[0042] The water inlet area includes an inlet pipe 3 connected to the outside, an inlet water temperature detection module and an inlet water volume detection module installed on the inlet pipe 3;

[0043] The water outlet area includes a water outlet pipe 4 connected to the outside and a water outlet temperature detection module installed on the water outlet pipe 4;

[0044] The heating area includes a number of sequentially connected heating pipes 22, and each heating pipe 22 is provided with a heating wire 5;

[0045] A stepper motor drive module is used to adjust the water inlet volume of the water inlet pipe 3;

[0046] The control module has the following components: the signal output terminal of the inlet water volume detection module is connected to the first signal input terminal of the control module; the signal output terminal of the inlet water temperature detection module is connected to the second signal input terminal of the control module; the signal output terminal of the outlet water temperature detection module is connected to the third signal input terminal of the control module; and the first signal output terminal of the control module is connected to the signal input terminal of the stepper motor drive module.

[0047] In this embodiment, the present invention uses an inlet water temperature detection module to detect the water temperature flowing into the instant water heater from the inlet pipe 3, and an outlet water temperature detection module to detect the water temperature flowing out of the instant water heater from the outlet pipe 4. If the outlet water temperature is lower than the preset outlet water temperature, the control module calculates the amount of water to be controlled based on the difference between the outlet water temperature setting and the inlet water temperature. The control module then sends a corresponding signal to the stepper motor drive module to control the amount of water entering the water, thereby adjusting the outlet water temperature to reach the preset value. When the water entering the water volume detection module detects that the water entering the water volume has reached the calculated value, the control module controls the stepper motor drive module to stop the water entering the water, so that the outlet water temperature reaches the preset value more stably. This makes it easier for users to use hot water at the preset temperature, improves the user experience, and solves the problem that the outlet water temperature of the instant water heater cannot stably reach the preset value, resulting in a poor user experience.

[0048] In this embodiment, the inlet water temperature detection module includes a cold water probe connected to the inlet end 3 for detecting the inlet water temperature; the outlet water temperature detection module includes a hot water probe connected to the outlet end 4 for detecting the outlet water temperature; the inlet water flow detection module includes a water flow sensor connected to the inlet end 3 for detecting the inlet water flow, wherein the water flow sensor is model YF-B7 and includes an inlet water temperature detection sensor; and the outlet water temperature detection sensor is model WZP-035.

[0049] In this embodiment, the control module includes a control chip U4, the model of which is STC15W408AS-35I-SOP28.

[0050] In this embodiment, the power supply module is connected to the power grid, and then the 220V voltage is reduced to the 12V or 5V voltage required by the chip through a series of transformer components.

[0051] Furthermore, it also includes a water heater body, which includes a shell 1 and an insulated heating inner tank 2 disposed within the shell 1. The insulated heating inner tank 2 has a water inlet area, a heating area, and a water outlet area connected in sequence. The water inlet area and the water outlet area are arranged adjacent to each other and located on one side of the heating area. The heating area is close to the edge of the insulated heating inner tank 2. The water inlet area also includes a plurality of water inlet pipes 21 connected in sequence. The water outlet area also includes a plurality of water outlet pipes 23 connected in sequence. The water inlet end of one of the water inlet pipes 21 is connected to the water inlet pipe 3. The water inlet end of one of the heating pipes 22 is connected to the water outlet end of one of the water inlet pipes 21. The water outlet end of one of the heating pipes 22 is connected to the water inlet end of one of the water outlet pipes 23. The water outlet end of one of the water outlet pipes 23 is connected to the water outlet pipe 4.

[0052] In this embodiment, as Figure 5As shown, unlike existing instant water heaters where the heating pipes are located between the inlet and outlet pipes in the heating tank, existing instant water heaters can only have 4-7 inlet pipes and 4-7 outlet pipes in their heating tanks. In this embodiment, the inlet area A and outlet area B are adjacent and located on one side of the heating area C. The heating area C is close to the right edge of the insulated heating tank 2. The inlet area A includes 8 sequentially connected inlet pipes 21 to form a series inlet water circuit. The heating area C includes 4 sequentially connected heating pipes 22 to form a series heating water circuit. The outlet area B includes 8 sequentially connected outlet pipes 23 to form a series... The interconnected water supply system allows for a more compact pipe structure within the insulated heating inner tank 2, maximizing its space and increasing the number of pipes in the inlet and outlet pipes 23 through a rational layout while maintaining the tank's volume. This, in turn, increases the water flow of the water heater and enhances its leakage prevention capabilities. Cold water enters the series water supply system from the inlet end 21a of the first inlet pipe 21 at the inlet pipe 3, then flows into each heating pipe 22 in the series heating system for sequential heating, gradually increasing the water temperature. Finally, the water flows into the series outlet water supply system and exits from the outlet end 23 of the last outlet pipe. Water flows from pipe 3a to outlet pipe 4. In this embodiment, the outlet end 23a is close to the left edge of the insulated heating inner tank 2 and away from all the heating pipes 22. During the water discharge process after heating, the remaining outlet pipes 23 slightly cool the water temperature. However, because the remaining outlet pipes 23 are close to the heating pipes 22, the water temperature at the last outlet end of the outlet pipe 23 will not lose too much heat. While meeting the user's needs, this avoids the situation where the water temperature is too high and could easily cause scalding, further enhancing the safety of the water heater body. The water temperature gradually rises through the relay heating method of the four sequentially connected heating pipes 22, which helps to control the water temperature. The system prevents excessively high water temperatures, thus protecting user safety and preventing scalding. Furthermore, the total length of all inlet pipes 21 connected in series is at least 2 meters, and the total length of all outlet pipes 23 connected in series is at least 2 meters. This increases the total length of the water flow path, increasing the resistance in the water flow and forming an anti-electric shock wall, making it less likely for the outlet water to become electrified. This effectively prevents leakage from the insulated heating tank 2, further enhancing user safety. The extended water flow also increases the water output of the water heater body. Using bare wire heating technology, cold water is directly heated by contact with the heating wire 5. Each heating pipe 221 is equipped with a separate heating wire 5, effectively improving the heating efficiency of the water heater body.Furthermore, the insulated heating inner tank 2 is made of insulating material, acting as an anti-electric shock barrier, further enhancing its anti-leakage function and ensuring the safe and reliable use of the water heater.

[0053] Furthermore, the water heater body includes an insulating upper cover 61 disposed on the upper part of the insulating heating inner tank 2 and an insulating lower cover 62 disposed on the lower part of the insulating heating inner tank 2. The insulating upper cover 61 and the insulating lower cover 62 are detachably connected to the insulating heating inner tank 2. The insulating upper cover 61 has a plurality of upper channels 611, and the insulating lower cover 62 has a plurality of lower channels 621. Each upper channel 611 is separated from the other by the wall of the insulating upper cover 61, and each lower channel 621 is separated from the other by the wall of the insulating lower cover 62. The walls are separated; each of the water inlet pipes 21 is connected to the upper channel 611 and the lower channel 621 to form a series water inlet circuit; each of the heating pipes 22 is connected to the upper channel 611 and the lower channel 621 to form a series heating circuit; each of the water outlet pipes 23 is connected to the upper channel 611 and the lower channel 621 to form a series water outlet circuit; and the series water inlet circuit, series heating circuit and series water outlet circuit are connected to each other through the upper channel 611 and the lower channel 621 to form a series water circuit.

[0054] In this embodiment, as Figure 4 As shown, the insulating upper cover 61 is detachably connected to the top of the insulating heating inner liner 2 via several fasteners, and the insulating lower cover 62 is detachably connected to the bottom of the insulating heating inner liner 2 via several fasteners, thereby enhancing the sealing performance of the insulating heating inner liner 2. The fasteners are preferably screws, which are easy to install and remove and have low production costs. In this embodiment, one upper channel 611 can connect two water inlet pipes 21, two heating pipes 22, two water outlet pipes 23, or one water inlet pipe 21 and one heating pipe 22. Alternatively, one heating pipe 22 and one water outlet pipe 23 may be connected. One lower channel 621 may connect two water inlet pipes 21, two heating pipes 22, two water outlet pipes 23, one water inlet pipe 21 and one heating pipe 22, or one heating pipe 22 and one water outlet pipe 23, so that all the water inlet pipes 21, all the heating pipes 22 and all the water outlet pipes 23 are sequentially connected to form a series water circuit, thereby increasing the total length of the series water circuit and increasing the water output of the water heater body, making it more convenient for users.

[0055] Furthermore, the heating wires 5 inside each heating pipe 22 are respectively connected to a first terminal 51 located at the top and a second terminal 52 located at the bottom. All first terminals 51 are connected to the live wire, and all second terminals 52 are connected to the neutral wire. The insulated heating inner liner 2 is also provided with a third terminal 24 and a fourth terminal 25. One end of the third terminal 24 is connected to the water inlet pipe 21 and the other end is grounded. One end of the fourth terminal 25 is connected to the water outlet pipe 23 and the other end is grounded.

[0056] In this embodiment, four heating wires 5 are individually configured within each of the four heating pipes 22. Taking one heating wire 5 as an example, the upper part of the heating wire 5 is connected to the first terminal 51, which is connected to the live wire. The lower part of the heating wire 5 is connected to the second terminal 52, which is connected to the neutral wire. The first terminal 51 and the second terminal 52 are respectively connected to the overall circuit of the water heater body to ensure the normal operation of each heating wire 5. In addition, the four heating pipes 22 are connected in sequence to form a series heating water circuit. The first inlet of all the heating pipes 22 is shown as port D in the figure, and the last outlet of all the heating pipes 221 is shown as port E in the figure. Ports D and E form the inlet and outlet of the series heating water circuit. Combined with the setting of the first terminal 51 and the second terminal 52 at both ends of the heating wire 5, it can be seen that ports D and E are both neutral terminals, which makes it difficult for cold water to conduct electricity after it enters all the heating pipes 22 and is heated. This further enhances the safety of the water heater body, effectively reduces safety risks, and protects the user's safety and health.

[0057] Furthermore, a first electroplated connector 53 is provided at the connection point between the first terminal 51 and the heating wire 5, and a second electroplated connector 54 is provided at the connection point between the second terminal 52 and the heating wire 5. The first electroplated connector 53 and the second electroplated connector 54 are respectively fixedly connected to the heating wire 5 to protect the heating wire 5; the first electroplated connector 53 is integrally formed with the first terminal 51, and the second electroplated connector 54 is integrally formed with the second terminal 52. Figure 7As shown, in this embodiment, the first terminal 51, the second terminal 52, the first electroplated connector 53, and the second electroplated connector 54 are preferably made of pure copper. From a processing perspective, since the instantaneous water heater provided by this invention uses bare wire heating technology, the heating wire is generally wrapped with two copper connectors at both ends. When immersed in water for a long time, the copper connectors are prone to oxidation and corrosion, which can easily cause the heating wire 5 to burn out. Therefore, in this embodiment, the first electroplated connector 53 and the second electroplated connector 54 are electroplated to cover the surface of the copper connectors with a protective layer. This protects the first electroplated connector 53 and the second electroplated connector 54 from oxidation and corrosion during prolonged immersion in water, thereby protecting the heating wire from burning out and extending its service life. Furthermore, the first electroplated connector 5... The first electroplated connector 53 and the second electroplated connector 54 are pressed together from both sides to form a tight connection with the two ends of the heating wire 5. Unlike existing connectors that are only pressed from one side, pressing from both sides ensures that the heating wire 5 is subjected to uniform force and is less prone to damage. Moreover, the copper connector is softer than the steel connector and is less likely to damage the heating wire 5 during the pressing process, thereby extending the service life of the heating wire 5. In addition, both the first electroplated connector 53 and the second electroplated connector 54 are pressed together from both sides to fix them to the ends of the heating wire 5. During assembly, the two electroplated connectors can be fixed in the middle of the opening of the heating pipe 22, so that the first electroplated connector 53 and the second electroplated connector 54 are less likely to touch the wall of the heating pipe 22, thus avoiding damage to the first electroplated connector 53 and the second electroplated connector 54 due to high temperature, thereby enhancing the protection of the heating wire 5. From the perspective of the size specifications of the two electroplated connectors, the existing copper connectors are relatively short. When the water flow decreases, the short copper connectors separate from the heating wire and the water, failing to dissipate heat in time. The heating wire has high residual heat and is prone to dry burning. The length of the first electroplated connector 53 and the second electroplated connector 54 is increased to 15 mm or more, which allows the first electroplated connector 53 and the second electroplated connector 54 to better protect the two ends of the heating wire 5 when immersed in water for heating, making it less likely to burn out. In actual installation, the insulated heating inner tank 2 is generally installed vertically with the main body of the water heater. After the water heater is turned off, the water flow decreases, and there is a gap between the electroplated connector at the top and the heating wire 5. After the water level drops, the heating wire 5 has high residual heat and cannot dissipate heat in time, which can easily cause dry burning. However, the extended electroplated connectors can still be immersed in water after the water heater is turned off, which is beneficial for the heat dissipation of the heating wire 5, further extending the service life of the heating wire 5, thereby reducing the user's maintenance costs and improving the user experience.

[0058] Preferably, the heating wire 5 is spirally arranged within the heating pipe 22, and the pitch of the heating wire 5 is greater than its diameter. For example... Figure 7As shown, preferably, in this embodiment, the pitch F2 of the heating wire 5 is at least twice the diameter F1 of the heating wire 5. The pitch F2 of the heating wire 5 is larger than that of the existing heating wire pitch, which reduces the heat accumulation between the coils of the heating wire 5, thereby effectively preventing the heating wire 5 from burning out easily. It can also prevent the heating wire 5 from forming scale during heating, which would lead to a short circuit, thereby effectively enhancing the safety of the water heater body.

[0059] Preferably, an upper sealing member 71 is provided between the top of the insulating heating inner liner 2 and the insulating upper cover 61, and a lower sealing member 72 is provided between the bottom of the insulating heating inner liner 2 and the insulating lower cover 62. The top of the insulating heating inner liner 2 is provided with a first mounting groove 26 that cooperates with the upper sealing member 71, the bottom of the insulating heating inner liner 2 is provided with a second mounting groove 27 that cooperates with the lower sealing member 72, the insulating upper cover 61 is provided with a third mounting groove 612 that cooperates with the upper sealing member 71, and the insulating lower cover 62 is provided with a fourth mounting groove 622 that cooperates with the lower sealing member 72. In this embodiment, the upper sealing element 71 and the lower sealing element 72 are preferably rubber sealing rings, which serve to seal and prevent water leakage. The upper sealing element 71 is installed by cooperating with the first mounting groove 26 on the top of the insulating heating inner liner 2 and the third mounting groove 612 of the insulating upper cover 61. The lower sealing element 72 is installed by cooperating with the second mounting groove 27 on the bottom of the insulating heating inner liner 2 and the fourth mounting groove 622 of the insulating lower cover 62. During the production and assembly process, the upper sealing element 71 and the lower sealing element 72 are first inserted into the insulating heating inner liner 2, and then respectively installed on the... The insulating upper cover 61 and insulating lower cover 62 prevent the upper seal 71 and lower seal 72 from shifting during assembly, thereby improving the quality and efficiency of the production and assembly of the insulating heating inner tank 2, further enhancing the sealing performance of the insulating heating inner tank 2, and thus enhancing the safety of the water heater body. Moreover, both ends of the upper seal 71 and lower seal 72 are provided with corresponding mounting grooves to protect the two seals, making them less susceptible to corrosion during daily use of the water heater body, thereby extending the service life of the upper seal 71 and lower seal 72.

[0060] Preferably, both the insulating upper cover 61 and the insulating lower cover 62 are provided with a plurality of positioning posts 601, and the top and bottom of the insulating heating inner liner 2 are provided with positioning holes 201 that cooperate with and connect to the positioning posts 601. Figure 2 — Figure 5As shown, in this embodiment, both the insulating upper cover 61 and the insulating lower cover 62 have two or more positioning posts 601 along their edges. The positioning hole 201 in the insulating upper cover 61 is connected to the positioning hole 201 at the top of the insulating heating inner tank 2, and the positioning post 601 in the insulating lower cover 62 is connected to the positioning hole 201 at the bottom of the insulating heating inner tank 2. This further makes it less likely for the insulating upper cover 61 and the insulating lower cover 62 to be misaligned during assembly, and avoids damage to the upper sealing member 71 and the lower sealing member 72 during assembly. This improves the assembly efficiency and quality of the insulating heating inner tank 2, thereby enhancing the sealing performance of the insulating heating inner tank 2 and the safety of the water heater body.

[0061] Preferably, the water heater body further includes a cold water probe 11 and a water flow sensor 12 disposed on the inlet pipe 3, a hot water probe 13 disposed on the outlet pipe 4, and a stepper motor 14 electrically connected to the water flow sensor 11. The water flow sensor 12 is located above the cold water probe 11. The cold water probe 11 is used to detect the inlet water temperature of the water heater body, the water flow sensor 12 is used to detect the inlet water volume of the water heater body, the hot water probe 13 is used to detect the outlet water temperature of the water heater body, and the stepper motor 14 is used to adjust the inlet water volume of the water heater body. In this embodiment, a water pump is connected to the inlet pipe 3. The inlet water temperature of the water heater body is measured by the cold water probe 11. The amount of water required to reach the set outlet water temperature is calculated by the difference between the inlet water temperature and the set outlet water temperature. Based on the actual outlet water temperature measured by the hot water probe 13, the water pump is switched on and off by the stepper motor 14 to control the amount of water entering the water. For example, if the initial inlet water temperature is 10°C and the set outlet water temperature is 55°C, when the actual outlet water temperature is lower than 55°C, the stepper motor 14 controls the water pump to shut off to reduce the amount of water entering the water. By automatically controlling the amount of water entering the water, the actual outlet water temperature reaches the set value, thereby improving the user experience. In addition, a heat sink and a silicon controlled rectifier (SCR) can also be installed on the inlet pipe 3. The heat sink and SCR effectively improve the heat dissipation of the water heater body, thereby enhancing the safety of the water heater body and extending its service life.

[0062] Preferably, the water heater body further includes a circuit board 15 installed inside the housing 1, a Bluetooth module 16 connected to the circuit board 15, and a speaker 17 connected to the circuit board 15. The Bluetooth module 16 can connect to electronic mobile devices, receive signals sent by the electronic mobile devices, and control the speaker 17 to emit sound through the circuit board 15. In this embodiment, the Bluetooth module 16 can receive signals sent by a mobile phone and emit sound through the speaker 17 so that the user can hear it, thereby realizing the functions of voice intercom, voice recognition, and music playback of the water heater body, enhancing the functionality of the water heater body and improving the user experience.

[0063] Preferably, the water heater body further includes a thermostat 18 disposed on the side wall of the insulated heating inner tank 2. The thermostat 18 is used to detect the temperature of the insulated heating inner tank 2. When the thermostat 18 detects that the temperature of the insulated heating inner tank 2 exceeds 60°C, it will trigger the water heater body to cut off the power to protect the insulated heating inner tank 2, thereby extending the service life of the insulated heating inner tank 2. In this embodiment, the thermostat 18 is disposed on the side wall of the insulated heating inner tank 2 to reduce the overall thickness of the insulated heating inner tank 2 and facilitate the assembly of the water heater body.

[0064] Furthermore, the heating pipe 22 includes at least a heating inlet pipe 221a and a heating outlet pipe 221b. The intelligent heating system applied to an instant water heater also includes a cooling pipe 24 disposed between the heating pipes 22 and close to the heating outlet pipe 221b. The inlet end of the cooling pipe 24 and the inlet end of the heating inlet pipe 221a are both connected to the inlet pipe 21, and the outlet end of the cooling pipe 24 is connected to the outlet end of the heating inlet pipe 221a.

[0065] In this embodiment, the insulated heating inner liner 2 preferably includes four heating pipes 221, namely a heating water inlet pipe 221a, a second heating pipe 221c, a third heating pipe 221d, and a heating water outlet pipe 221b arranged in a rectangular pattern. All heating pipes 221 are located near the edge of the insulated heating inner liner 2, such as... Figure 4 and Figure 5As shown, part A is the area of ​​the inlet pipe 21, and part B is the area of ​​the outlet pipe 23. Cold water entering the heating inlet pipe 221a from the inlet pipe 21 is heated step by step through the second heating pipe 221c and the third heating pipe 221d. Finally, hot water flows out from the heating outlet pipe 221b to the outlet pipe 23. Overall, cold water enters the heating inlet pipe 221a from the bottom of the insulated heating inner tank 2 and is heated; it enters the second heating pipe 221c from the top of the insulated heating inner tank 2 and is heated; it enters the third heating pipe 221d from the bottom of the insulated heating inner tank 2 and is heated; and it enters the heating outlet pipe 23 from the top of the insulated heating inner tank 2 and is heated. The water pipe 221b is heated, and the heated hot water enters the outlet pipe 23 from the bottom of the insulated heating inner tank 2 through the heating outlet pipe 221b. The cold water directly contacts the heating wire for heating, resulting in high heating efficiency. Furthermore, each heating wire sequentially heats the cold water flow, causing the water temperature to rise gradually, effectively controlling the outlet water temperature and preventing it from becoming too high, thus avoiding discomfort or even scalding. Additionally, this design includes a cooling pipe 24. Preferably, the cooling pipe 24 is located in the middle of the four heating pipes 221, adjacent to the heating outlet pipe 221b. The inlet end of the cooling pipe 24 and the inlet end of the heating inlet pipe 221a are both connected to the inlet pipe 21. The outlet end of the cooling pipe 24 is connected to the outlet end of the heating inlet pipe 221a. Part of the cold water in the inlet pipe 21 is introduced into the heating inlet pipe 221a, and part is introduced into the cooling pipe 24. The water then converges at the outlet end of the heating inlet pipe 221a and enters the second heating pipe 221c for joint heating. The cooling pipe 24 and the heating inlet pipe 221a share the same water intake and outlet. The cooling pipe 24 is adjacent to each of the heating pipes 221, allowing it to better absorb heat from the inner wall of the heating pipes 221, thus achieving a cooling effect and effectively preventing scale buildup inside the heating pipes 221. Furthermore, the inlet end of the cooling pipe 24 is connected to the outlet end of the heating outlet pipe 221b. On the same side, the lowest temperature position in the cooling pipe 24 is close to the highest temperature position in the heating outlet pipe 221b. The cooling pipe 24 absorbs the residual heat of the inner wall of the outlet end of the heating outlet pipe 221b, ensuring that the residual temperature at the outlet end of the heating outlet pipe 221b does not exceed 60°C. Since scale easily forms when the temperature exceeds 60°C, the cooling pipe 24 inhibits the conditions for scale formation inside the heating pipe 221b, better preventing scale formation due to excessively high temperature in the heating pipe 221b, extending the service life of the water heater, and making the water heater more convenient and safer to use. It should be noted that in this preferred embodiment, the residual temperature at the outlet end of the heating outlet pipe 221b does not exceed 59.2 degrees Celsius.In addition, the total length of the inlet pipe 21 and the total length of the outlet pipe 23 in this embodiment are both at least two meters, which further extends the waterway distance and increases the water output. Since the water flow has high resistance, both the inlet pipe 21 area A and the outlet pipe 23 area B form an anti-electric shock wall, making it difficult for the water to conduct electricity after the water heater body is heated, thus enhancing the safety of the water heater body. The insulated heating inner tank 2 is made of insulating material, forming a double anti-electric shock wall effect, making the water heater safer and more reliable, thereby enhancing the user's safety.

[0066] Further, the water inlet flow detection module includes a water inlet flow detection connection terminal CN4, a resistor R29, and a resistor R43. The power output terminal of the power supply module is connected to the first terminal of the water inlet flow detection connection terminal CN4, the second terminal of the water inlet flow detection connection terminal CN4 is connected to the first terminal of the resistor R29, a resistor R43 is connected between the power output terminal of the power supply module and the first terminal of the resistor R29, the second terminal of the resistor R29 is connected to the first signal input terminal of the control module, and the third terminal of the water inlet flow detection connection terminal CN4 is grounded. The water inlet temperature detection module includes a water inlet temperature detection connection terminal CN6, a resistor R28, and a resistor R33. The power output terminal of the power supply module is connected to the first terminal of the water inlet temperature detection connection terminal CN6, the second terminal of the water inlet temperature detection connection terminal CN6 is connected to the first signal input terminal of the control module, and the third terminal of the water inlet flow detection connection terminal CN4 is grounded. The first end of resistor R28 is connected, and resistor R33 is connected between the power output terminal of the power supply module and the first end of resistor R28. The second end of resistor R28 is connected to the second signal input terminal of the control module. The third end of the inlet water temperature detection connection terminal CN6 is grounded. The outlet water temperature detection module includes an outlet water temperature detection connection terminal CN7, resistor R26, and resistor R32. The power output terminal of the power supply module is connected to the first end of the outlet water temperature detection connection terminal CN7. The second end of the outlet water temperature detection connection terminal CN7 is connected to the first end of resistor R26. Resistor R32 is connected between the power output terminal of the power supply module and the first end of resistor R26. The second end of resistor R26 is connected to the third signal input terminal of the control module. The third end of the outlet water temperature detection connection terminal CN7 is grounded.

[0067] In this embodiment, the inlet water flow detection terminal CN4 is used to detect the amount of water flowing into the instantaneous water heater from the water pump, and then sends the corresponding inlet water flow signal to the control module for calculation and processing. The resistor R29 serves as current limiting protection, and the resistor R43 is a pull-up resistor connected to the 5V power supply output by the power supply module. The inlet water temperature detection terminal CN6 is used to detect the inlet water temperature flowing into the instantaneous water heater from the water pump, and then sends the corresponding inlet water temperature signal to the control module for calculation and processing. The resistor R28 serves as current limiting protection, and the resistor R33 is a pull-up resistor connected to the 5V power supply output by the power supply module. The outlet water temperature detection terminal CN7 is used to detect the outlet water temperature flowing out of the instantaneous water heater, and then sends the corresponding outlet water temperature signal to the control module for calculation and processing. The resistor R26 serves as current limiting protection, and the resistor R32 is a pull-up resistor connected to the 5V power supply output by the power supply module.

[0068] Furthermore, the power supply module includes a rectifier module, a primary-side feedback module, a transformer element T1, and a step-down module connected to the power grid. The positive terminal of the rectifier module is connected to the first end of the primary winding of the transformer element T1, the second end of the primary winding of the transformer element T1 is connected to the first end of the primary-side feedback module, the second end of the primary-side feedback module is connected to the negative terminal of the rectifier module, the secondary winding of the transformer element T1 outputs a 12V voltage for power supply, the secondary winding of the transformer element T1 is connected to the power input terminal of the step-down module, and the power output terminal of the step-down module outputs a 5V voltage for power supply.

[0069] In this embodiment, the rectifier module is used to rectify the AC power of the power grid into DC power, and the primary-side feedback module keeps the voltage of the transformer element T1 stable. The transformer element T1 converts 220V DC power into 12V DC power.

[0070] Furthermore, the power supply module also includes a diode D1 and an inductor L1. The positive terminal of the diode D1 is connected to the positive terminal of the rectifier module, the negative terminal of the diode D1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the first end of the primary winding of the transformer element T1. The primary-side feedback module includes a primary-side feedback chip U1, a diode D2, resistors R1, R2, R7, R8, and R14. The positive terminal of the rectifier module is connected to the first end of resistor R1, the second end of resistor R1 is connected to the current sampling terminal of the primary-side feedback chip U1, the positive terminal of the rectifier module is connected to the first end of resistor R2, and the second end of resistor R2 is connected to the current sampling terminal of the primary-side feedback chip U1. The current sampling terminal is connected, the positive terminal of the rectifier module is connected to the first terminal of the resistor R14, the second terminal of the resistor R14 is connected to the voltage sampling terminal of the primary-side feedback chip U1, the first terminal of the secondary-side power supply winding of the transformer element T1 is connected to the first terminal of the resistor R7, the second terminal of the resistor R7 is connected to the voltage sampling terminal of the primary-side feedback chip U1, the first terminal of the secondary-side power supply winding of the transformer element T1 is connected to the first terminal of the resistor R8, the second terminal of the resistor R8 is connected to the positive terminal of the diode D2, the negative terminal of the diode D2 is connected to the power input terminal of the primary-side feedback chip U1, and the drain pin of the primary-side feedback chip U1 is connected to the second terminal of the secondary-side power supply winding of the transformer element T1.

[0071] In this embodiment, diode D1 serves to rectify and prevent reverse current, inductor L1 serves to filter, and the rectifier module includes rectifier element DB1 (model AB108). A varistor RZ1, a thermistor NTC, and a fuse FU1 are connected in parallel with the power grid to protect the circuit. The primary-side feedback chip U1 is model SP5718F. Resistors R1 and R2 form a voltage sampling network to sample the CS pin (current sampling terminal) of the primary-side feedback chip U1. Resistors R14 and R7 form a voltage sampling network to sample the CS pin (voltage sampling terminal) of the primary-side feedback chip U1. Resistor R8 provides current limiting protection, and diode D2 serves to rectify and prevent reverse current. The primary-side feedback chip U1 adjusts and stabilizes the voltage of the primary winding, and the other protective electronic components also improve the safety of the power supply module.

[0072] Preferably, the power supply module further includes a diode D3, a capacitor C4, a resistor R10, and an inductor L2. The first terminal of the secondary winding of the transformer element T1 is connected to the first terminal of the capacitor C4, the second terminal of the capacitor C4 is connected to the first terminal of the resistor R10, the second terminal of the resistor R10 is connected to the first terminal of the inductor L2, the first terminal of the secondary winding of the transformer element T1 is connected to the positive terminal of the diode D3, the negative terminal of the diode D3 is connected to the first terminal of the inductor L2, and the second terminal of the inductor L2 outputs 12V power to supply power to the circuit. The power input terminal of the step-down module is connected, and the second terminal of the secondary winding of the transformer element T1 is grounded. The step-down module includes a step-down chip U6. The power input terminal of the step-down chip U6 is connected to the second terminal of the inductor L2. The power output terminal of the step-down chip U6 outputs 5V power to supply power to the circuit. The resistor R10 and capacitor C4 form an RC filter circuit to filter the voltage of the secondary winding of the transformer element T1. The diode D3 also rectifies the voltage of the secondary winding of the transformer element T1. The inductor L2 also plays a filtering role. The model of the step-down chip U6 is XL1509A.

[0073] Preferably, the control circuit further includes a leakage current protection module, which includes a leakage current terminal CN3, a transistor Q2, a leakage current protection chip U2, resistors R31, R21, R34, and R35. The leakage current terminal CN3 is connected to the first end of resistor R31, the second end of resistor R31 is connected to the first end of resistor R21, the second end of resistor R21 is connected to the signal input terminal of the leakage current protection chip U2, the signal output terminal of the leakage current protection chip U2 is connected to the first end of resistor R34, the second end of resistor R34 is connected to the base of transistor Q2, the power output terminal of the power supply module is connected to the first end of resistor R35, the second end of resistor R35 is connected to the collector of transistor Q2, and the second signal output terminal of the control module is connected to the transistor... The collector of transistor Q2 is connected, and the emitter of transistor Q2 is grounded. The leakage protection chip U2 is model VG54123. The leakage terminal CN3 is used to connect other external components for leakage detection and transmit the signal to the leakage protection chip U2 for calculation and processing. Resistors R31, R21, and R34 all serve as voltage dividers. Furthermore, the 12V power output from the power supply module supplies power to the leakage protection chip U2. Resistor R35 supplies power to the 5V power output from the power supply module. When leakage occurs, the leakage protection chip U2 receives the level signal from the leakage terminal CN3, calculates and processes it, and transmits the corresponding level signal to the base of transistor Q2, turning on transistor Q2. This causes the LO pin of the control module to receive the level signal and perform corresponding emergency processing, improving the safety of the entire circuit.

[0074] Preferably, the control circuit further includes an overhead spray control module, a side spray control module, and a shower head control module. The overhead spray control module includes an overhead spray terminal, a transistor Q3, and a resistor R44. The first end of the overhead spray terminal is connected to the power output terminal of the power supply module, the second end of the overhead spray terminal is connected to the collector of the transistor Q3, the emitter of the transistor Q3 is grounded, the base of the transistor Q3 is connected to the first end of the resistor R44, and the second end of the resistor R44 is connected to the third signal output terminal of the control module. The side spray control module includes a side spray terminal, a transistor Q4, and a resistor R45. The first end of the overhead spray terminal is connected to the power output terminal of the power supply module, the second end of the overhead spray terminal is connected to the collector of the transistor Q4, the emitter of the transistor Q4 is grounded, and the base of the transistor Q4 is connected to the first end of the resistor R44. The base of the shower head is connected to the first end of the resistor R45, and the second end of the resistor R45 is connected to the fourth signal output terminal of the control module. The shower head control module includes a shower head terminal, a transistor Q5, and a resistor R46. The first end of the shower head terminal is connected to the power output terminal of the power supply module, the second end of the shower head terminal is connected to the collector of the transistor Q5, the emitter of the transistor Q5 is grounded, the base of the transistor Q5 is connected to the first end of the resistor R46, and the second end of the resistor R46 is connected to the fifth signal output terminal of the control module. When the top spray needs to be turned on, the control module sends a corresponding level signal to the base of the transistor Q3 to turn it on, thereby turning on the top spray device on the top spray terminal. Similarly, the side spray and the shower head use the same working principle, which facilitates diverse choices for users and improves the user experience.

[0075] Preferably, such as Figure 8 As shown, the data port of the control module is also connected to a thyristor control module, which includes a thyristor CN8. The thyristor CN8 effectively improves the heat dissipation effect of the instant water heater used in this circuit, and further protects the instant water heater.

[0076] Preferably, such as Figure 9 As shown, the stepper motor drive module includes a stepper motor driver chip U3 and a stepper motor connection terminal CN8. The stepper motor driver chip U3 is model ULN2003. The stepper motor connection terminal CN8 is connected to an external stepper motor, which is used to control a water pump.

[0077] The working principle of this invention is as follows:

[0078] In this invention, the inlet water temperature detection module detects the water temperature flowing into the instant water heater from the inlet pipe 3, and the outlet water temperature detection module detects the water temperature flowing out of the instant water heater from the outlet pipe 4. If the outlet water temperature is lower than the preset outlet water temperature, the control module calculates the amount of water to be controlled based on the difference between the outlet water temperature setting and the inlet water temperature. The control module then sends a corresponding signal to the stepper motor drive module to control the amount of water entering the water, thereby adjusting the outlet water temperature to reach the preset value. When the water entering the water volume detection module detects that the water entering the water volume has reached the calculated value, the control module controls the stepper motor drive module to stop the water entering the water, making the outlet water temperature more stable at the preset value. This allows users to use hot water at the preset temperature, improving the user experience and solving the problem that the outlet water temperature of the instant water heater cannot stably reach the preset value, resulting in a poor user experience.

[0079] The above description is one implementation method provided in conjunction with specific content, and does not imply that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to or identical to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. An intelligent heating system for instant water heaters, comprising a power supply module that provides power to an intelligent control system, characterized in that, Also includes: The water inlet area includes an inlet pipe (3) connecting to the outside and an inlet temperature detection module and an inlet flow detection module installed on the inlet pipe (3); The water outlet area includes an outlet pipe (4) connected to the outside and an outlet temperature detection module installed on the outlet pipe (4); The water inlet area also includes several water inlet pipes (21) connected in sequence, and the water outlet area also includes several water outlet pipes (23) connected in sequence. The heating area includes several heating pipes (22) connected in sequence, and each heating pipe (22) is provided with a heating wire (5). A stepper motor drive module is used to adjust the water inlet volume of the water inlet pipe (3); The control module has the following components: the signal output terminal of the inlet water volume detection module is connected to the first signal input terminal of the control module; the signal output terminal of the inlet water temperature detection module is connected to the second signal input terminal of the control module; the signal output terminal of the outlet water temperature detection module is connected to the third signal input terminal of the control module; and the first signal output terminal of the control module is connected to the signal input terminal of the stepper motor drive module. The main body of the water heater includes a shell (1) and an insulated heating inner tank (2) disposed in the shell (1). The insulated heating inner tank (2) is provided with a water inlet area, a heating area and a water outlet area connected in sequence. The water inlet area and the water outlet area are arranged adjacent to each other and are located on one side of the heating area. The heating area is close to the edge of the insulated heating inner tank (2). The main body of the water heater includes an insulating upper cover (61) located on the upper part of the insulating heating inner tank (2) and an insulating lower cover (62) located on the lower part of the insulating heating inner tank (2). The insulating upper cover (61) and the insulating lower cover (62) are detachably connected to the insulating heating inner tank (2). The insulating upper cover (61) has a plurality of upper channels (611) and the insulating lower cover (62) has a plurality of lower channels (621). The upper channels (611) are separated from each other by the wall of the insulating upper cover (61), and the lower channels (621) are separated from each other by the insulating lower cover (62). The walls are separated; each of the water inlet pipes (21) is connected to the upper channel (611) and the lower channel (621) to form a series water inlet circuit; each of the heating pipes (22) is connected to the upper channel (611) and the lower channel (621) to form a series heating circuit; each of the water outlet pipes (23) is connected to the upper channel (611) and the lower channel (621) to form a series water outlet circuit; and the series water inlet circuit, the series heating circuit and the series water outlet circuit are connected to each other through the upper channel (611) and the lower channel (621) to form a series water circuit. The heating pipe (22) includes at least a heating inlet pipe (221a) and a heating outlet pipe (221b). The intelligent heating system applied to an instant water heater also includes a cooling pipe (24) located between the heating pipes (22) and close to the heating outlet pipe (221b). The inlet end of the cooling pipe (24) and the inlet end of the heating inlet pipe (221a) are both connected to the inlet pipe (21), and the outlet end of the cooling pipe (24) is connected to the outlet end of the heating inlet pipe (221a).

2. The intelligent heating system for instantaneous water heaters according to claim 1, characterized in that, Furthermore, the inlet end of one of the water inlet pipes (21) is connected to the water inlet pipe (3), the inlet end of one of the heating pipes (22) is connected to the outlet end of one of the water inlet pipes (21), the outlet end of one of the heating pipes (22) is connected to the inlet end of one of the water outlet pipes (23), and the outlet end of one of the water outlet pipes (23) is connected to the water outlet pipe (4).

3. The intelligent heating system for instantaneous water heaters according to claim 1, characterized in that, Each of the heating pipes (22) has a heating wire (5) with a first terminal (51) at the top and a second terminal (52) at the bottom connected to its two ends. All the first terminals (51) are connected to the live wire, and all the second terminals (52) are connected to the neutral wire. The insulating heating inner liner (2) is also provided with a third terminal and a fourth terminal (25). One end of the third terminal is connected to the water inlet pipe (21) and the other end is grounded. One end of the fourth terminal (25) is connected to the water outlet pipe (23) and the other end is grounded.

4. The intelligent heating system for instantaneous water heaters according to claim 3, characterized in that, A first electroplating connector (53) is provided at the connection between the first terminal (51) and the heating wire (5), and a second electroplating connector (54) is provided at the connection between the second terminal (52) and the heating wire (5). The first electroplating connector (53) and the second electroplating connector (54) are respectively fixedly connected to the heating wire (5) to protect the heating wire (5). The first electroplating connector (53) is integrally formed with the first terminal (51), and the second electroplating connector (54) is integrally formed with the second terminal (52).

5. The intelligent heating system for instantaneous water heaters according to claim 1, characterized in that, An upper sealing element (71) is provided between the top of the insulating heating inner liner (2) and the insulating upper cover (61), and a lower sealing element (72) is provided between the bottom of the insulating heating inner liner (2) and the insulating lower cover (62). The top of the insulating heating inner liner (2) is provided with a first mounting groove (26) that cooperates with the upper sealing element (71), the bottom of the insulating heating inner liner (2) is provided with a second mounting groove (27) that cooperates with the lower sealing element (72), the insulating upper cover (61) is provided with a third mounting groove (612) that cooperates with the upper sealing element (71), and the insulating lower cover (62) is provided with a fourth mounting groove (622) that cooperates with the lower sealing element (72). Both the insulating upper cover (61) and the insulating lower cover (62) are provided with a plurality of positioning posts (601), and the top and bottom of the insulating heating inner liner (2) are provided with positioning holes (201) that cooperate with the positioning posts (601).

6. The intelligent heating system for an instantaneous water heater according to claim 1, characterized in that, The water inlet detection module includes a water inlet detection connection terminal CN4, a resistor R29, and a resistor R43. The power output terminal of the power supply module is connected to the first terminal of the water inlet detection connection terminal CN4, the second terminal of the water inlet detection connection terminal CN4 is connected to the first terminal of the resistor R29, a resistor R43 is connected between the power output terminal of the power supply module and the first terminal of the resistor R29, the second terminal of the resistor R29 is connected to the first signal input terminal of the control module, and the third terminal of the water inlet detection connection terminal CN4 is grounded. The inlet water temperature detection module includes an inlet water temperature detection connection terminal CN6, a resistor R28, and a resistor R33. The power output terminal of the power supply module is connected to the first terminal of the inlet water temperature detection connection terminal CN6, the second terminal of the inlet water temperature detection connection terminal CN6 is connected to the first terminal of the resistor R28, a resistor R33 is connected between the power output terminal of the power supply module and the first terminal of the resistor R28, the second terminal of the resistor R28 is connected to the second signal input terminal of the control module, and the third terminal of the inlet water temperature detection connection terminal CN6 is grounded. The outlet water temperature detection module includes an outlet water temperature detection connection terminal CN7, a resistor R26, and a resistor R32. The power output terminal of the power supply module is connected to the first terminal of the outlet water temperature detection connection terminal CN7. The second terminal of the outlet water temperature detection connection terminal CN7 is connected to the first terminal of the resistor R26. A resistor R32 is connected between the power output terminal of the power supply module and the first terminal of the resistor R26. The second terminal of the resistor R26 is connected to the third signal input terminal of the control module. The third terminal of the outlet water temperature detection connection terminal CN7 is grounded.

7. The intelligent heating system for an instantaneous water heater according to claim 6, characterized in that, The power supply module includes a rectifier module, a primary-side feedback module, a transformer element T1, and a step-down module connected to the power grid. The positive terminal of the rectifier module is connected to the first end of the primary winding of the transformer element T1. The second end of the primary winding of the transformer element T1 is connected to the first end of the primary-side feedback module. The second end of the primary-side feedback module is connected to the negative terminal of the rectifier module. The secondary winding of the transformer element T1 outputs a 12V voltage for power supply. The secondary winding of the transformer element T1 is connected to the power input terminal of the step-down module. The power output terminal of the step-down module outputs a 5V voltage for power supply.

8. The intelligent heating system for an instantaneous water heater according to claim 7, characterized in that, The power supply module further includes a diode D1 and an inductor L1. The positive terminal of the diode D1 is connected to the positive terminal of the rectifier module, and the negative terminal of the diode D1 is connected to the first end of the inductor L1. The second end of the inductor L1 is connected to the first end of the primary winding of the transformer element T1. The primary-side feedback module includes a primary-side feedback chip U1, a diode D2, and resistors R1, R2, R7, R8, and R14. The positive terminal of the rectifier module is connected to the first end of resistor R1, and the second end of resistor R1 is connected to the current sampling terminal of the primary-side feedback chip U1. The positive terminal of the rectifier module is connected to the first end of resistor R2, and the second end of resistor R2 is connected to the current sampling terminal of the primary-side feedback chip U1. The sampling terminals are connected as follows: the positive terminal of the rectifier module is connected to the first terminal of the resistor R14; the second terminal of the resistor R14 is connected to the voltage sampling terminal of the primary-side feedback chip U1; the first terminal of the secondary-side power supply winding of the transformer element T1 is connected to the first terminal of the resistor R7; the second terminal of the resistor R7 is connected to the voltage sampling terminal of the primary-side feedback chip U1; the first terminal of the secondary-side power supply winding of the transformer element T1 is connected to the first terminal of the resistor R8; the second terminal of the resistor R8 is connected to the positive terminal of the diode D2; the negative terminal of the diode D2 is connected to the power input terminal of the primary-side feedback chip U1; and the drain pin of the primary-side feedback chip U1 is connected to the second terminal of the secondary-side power supply winding of the transformer element T1.

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