Waterway structure and water purifier
By introducing heating water and return water circuits into the instant hot water purifier, the problem of residual water affecting the inaccurate outlet water temperature in the instant hot water purifier is solved, realizing the stability of the outlet water temperature and the optimization of water quality, thus improving the user experience.
Patent Information
- Application Number
- CN202520063974.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-11
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-01-11
AI Technical Summary
Hot water stagnation in the water pipe between the heating element and the water outlet of an instant hot water purifier can cause inaccurate water temperature and affect the user experience.
Design a water circuit structure including a heating water circuit and a return water circuit. The return water circuit drains the residual water in the second heating water circuit, and the residual water is treated by a water pump and a water tank. Combined with a temperature sensor and a heating device, the stability of the outlet water temperature and the optimization of water quality are ensured.
It achieves precise control of the outlet water temperature, avoids residual water from affecting the next water supply temperature, and improves user experience and water quality safety.
Smart Images

Figure CN223965598U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of water supply technology, and in particular to a water supply structure and a water purifier. Background Technology
[0002] Currently, most instant hot water purifiers on the market have a common design flaw: a short section of water pipe connects the heating element to the water outlet. After water supply stops, this pipe often retains some heated water. Consequently, when the user turns the purifier back on to obtain hot water at a different temperature, the first portion of water flowing out is often affected by the temperature of the previously retained water.
[0003] This temperature difference not only means that the first drop of water from the outlet is not at the user's desired temperature, but also makes frequent temperature adjustments particularly cumbersome. This situation not only reduces the ease of use of instant hot water purifiers, but also significantly impacts the overall user experience, forcing users to confront the inconvenience of inaccurate water temperature while enjoying the convenience of instant hot water. Therefore, how to improve this design to ensure that water is dispensed at a precise temperature every time has become a pressing issue for instant hot water purifier manufacturers. Summary of the Invention
[0004] The technical problem to be solved by this disclosure is to overcome the defect of the existing instant hot water purifier where the outlet water temperature is affected by the residual water temperature and the outlet water temperature is inaccurate, and to provide a water circuit structure and water purifier.
[0005] This disclosure solves the above-mentioned technical problems through the following technical solution:
[0006] Firstly, a water circuit structure is provided, including a heating water circuit and a return water circuit;
[0007] The heating water circuit is connected to the return water circuit;
[0008] The connection point between the heating water circuit and the return water circuit divides the heating water circuit into a first heating water circuit from the inlet to the connection point and a second heating water circuit from the connection point to the outlet.
[0009] The first heating water path is used to heat the water flow in the water path so as to supply hot water to the outlet;
[0010] The return water circuit is used to drain the remaining water in the second heating water circuit when the water outlet stops flowing out.
[0011] The second heating water path is used to dry the pipeline from the connection point to the water outlet.
[0012] Preferably, the return water circuit includes a water pump and a water tank;
[0013] The water pump is used to pump the remaining water in the second heating water circuit to the water tank;
[0014] The water tank is equipped with a drain outlet for discharging excess water.
[0015] Preferably, the water pump is a reversible water pump, and the water pump is also used to pump the remaining water in the water tank to the second heating water circuit to supply water to the water outlet.
[0016] Preferably, the water tank is equipped with a temperature sensor 211.
[0017] Preferably, the return water path further includes a first heating device;
[0018] The first heating device is used to heat the remaining water in the water tank in order to adjust the temperature of the water supplied to the outlet.
[0019] Preferably, the first heating device is a first heating tube 212 disposed in the water tank.
[0020] Preferably, the first heating device is a second heating pipe 213 disposed on the return water line.
[0021] Preferably, the first heating water circuit includes a third heating tube.
[0022] Preferably, the second heating water path includes a heating element.
[0023] In a second aspect, a water purifier is provided, including the water circuit structure described in the first aspect.
[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.
[0025] The positive and progressive effects of this disclosure are as follows: the water circuit structure uses a heating water circuit as the water circuit for supplying hot water, wherein the first heating water circuit heats the water flowing into the heating water circuit to provide hot water that meets the temperature requirements of the outlet; after the water supply is completed, the return water circuit discharges the residual water in the second heating water circuit through the connection point to avoid the cooled residual water affecting the outlet water temperature of the next water supply, and the water flow of the next water supply is directly heated by the first heating water pipe and flows out from the outlet, with a stable outlet water temperature; the second heating water circuit dries the corresponding pipes to prevent bacteria from growing in the second heating water circuit after the residual water is discharged, which would pollute the outlet water quality of the next water supply. Attached Figure Description
[0026] Figure 1 This is a first structural schematic diagram of the waterway structure in Embodiment 1 of this disclosure;
[0027] Figure 2This is a schematic diagram of the second structure of the waterway structure in Embodiment 1 of this disclosure;
[0028] Figure 3 This is a schematic diagram of the third structure of the waterway structure in Embodiment 1 of this disclosure.
[0029] Explanation of reference numerals in the attached figures
[0030] Heating water circuit 100
[0031] 200 return waterway
[0032] Water tank 210
[0033] Temperature sensor 211
[0034] Water pump 220
[0035] Drain pipe 221
[0036] First heating element 212
[0037] Second heating element 213
[0038] First heating water circuit 110
[0039] Third heating element 111
[0040] Second heating water circuit 120
[0041] Heating element 121
[0042] 300 water outlet Detailed Implementation
[0043] The present disclosure is further illustrated below by way of embodiments, but the present disclosure is not limited to the scope of the embodiments described herein.
[0044] Example 1
[0045] This embodiment provides a waterway structure, such as Figure 1-3 As shown, it includes a heating water circuit 100 and a return water circuit 200;
[0046] The heating water circuit 100 is connected to the return water circuit 200;
[0047] The connection point between the heating water path 100 and the return water path 200 divides the heating water path 100 into a first heating water path 110 from the inlet to the connection point, and a second heating water path 120 from the connection point to the outlet 300.
[0048] The first heating water path 110 is used to heat the water flow in the water path 100 so as to supply hot water to the outlet 300;
[0049] The return water path 200 is used to drain the remaining water in the second heating water path 120 when the water outlet 300 stops discharging water.
[0050] The second heating water path 120 is used to dry the pipeline from the connection point to the outlet 300.
[0051] In this scheme, the water circuit structure uses the heating water circuit 100 as the water circuit for supplying hot water. The first heating water circuit 110 heats the water flowing into the heating water circuit 100 to provide hot water that meets the temperature requirements of the outlet 300. After the water supply is completed, the return water circuit 200 discharges the residual water in the second heating water circuit 120 through the drain pipe 221 via the connection point to avoid the cooled residual water affecting the outlet water temperature of the next water supply. The water flow of the next water supply is directly heated by the first heating water pipe and flows out of the outlet 300, with a stable outlet water temperature. The second heating water circuit 120 dries the corresponding pipes to prevent bacteria from growing in the second heating water circuit 120 after the residual water is discharged, which would pollute the outlet water quality of the next water supply.
[0052] In one possible implementation, the return water path 200 includes a water pump 220 and a water tank 210;
[0053] The water pump 220 is used to pump the excess water in the second heating water circuit 120 to the water tank 210;
[0054] The water tank 210 is provided with a drain outlet for discharging the excess water.
[0055] In this scheme, the residual water in the second heating water circuit 120 is pumped by water pump 220 to water tank 210 for recycling, and the residual water is discharged periodically through the drain outlet of drain tank 210 to prevent bacteria from growing in the residual water that has not been used for a long time and causing pollution to the effluent water quality.
[0056] As one possible implementation, the water pump 220 is a reversible water pump 220, and the water pump 220 is also used to pump the residual water in the water tank 210 to the second heating water circuit 120 to supply water to the outlet 300.
[0057] In this solution, residual water is briefly stored in water tank 210 within a preset time to quickly respond to the water demand at outlet 300, compensating for the heating time during the heating and water dispensing process of the first heating water circuit 110. The water temperature in water tank 210 can be maintained at a preset temperature, which can be chosen based on the user's preferred water temperature. If the residual water is stored in water tank 210 for longer than the preset time, the residual water is discharged to prevent bacterial growth, thereby improving the response speed and water quality of the water dispensing process.
[0058] As one possible approach, the water tank 210 is equipped with a temperature sensor 211.
[0059] In this solution, the temperature of the residual water in the water tank 210 is accurately determined by the temperature sensor 211. When there is a deviation between the temperature of the residual water in the water tank 210 and the required water temperature at the outlet 300, if the deviation value is within the preset deviation threshold, the residual water in the water tank 210 will be used for rapid water dispensing to improve the user experience.
[0060] As one possible implementation, the return water path 200 also includes a first heating device;
[0061] The first heating device is used to heat the remaining water in the water tank 210 to adjust the temperature of the water supplied to the outlet 300.
[0062] In this scheme, the first heating device is configured in the water tank 210 to heat the remaining water in the water tank 210 so that the remaining water in the water tank 210 is at the preset heat preservation temperature, so as to meet the rapid response of the next water output demand.
[0063] In one possible manner, the first heating device is a first heating tube 212 disposed in the water tank 210.
[0064] In this scheme, the first heating pipe 212 heats the remaining water in the water tank 210 to ensure that the temperature of the remaining water in the water tank 210 meets the water temperature of the outlet 300. The remaining water is used as the water supply to compensate for the waiting time during the heating process of the first heating water circuit 110, thereby improving the timeliness and stability of the water outlet temperature. In one embodiment, the return water circuit 200 can also be used to adjust the water temperature of the outlet 300. When the water flow in the first heating water pipe cannot be heated in a short time, the remaining water in the return water circuit 200 with a higher water temperature is mixed with the water flow heated by the first heating water pipe to ensure that the water supply temperature at the outlet 300 meets the set water demand and reduces the waiting time for water use.
[0065] In one possible implementation, the first heating device is a second heating tube 213 disposed on the return water passage 200.
[0066] In this design, the second heating element 213 heats the water flow in the return water path 200, thereby heating the residual water flowing into or out of the water tank 210 to ensure that the water temperature flowing into the water tank 210 reaches the preset insulation temperature and meets the water temperature supplied from the outlet 300. The heating method is more flexible; alternatively, a first heating element 212 can be installed in the water tank 210 simultaneously to maintain the water temperature within the tank.
[0067] In one possible implementation, the first heating water circuit 110 includes a third heating tube 111.
[0068] In this scheme, the first heating water circuit 110 serves as the main water circuit for hot water supply. The power of the third heating tube 111 is greater than that of the second heating tube 213. The third heating tube 111 heats the room temperature water flowing into the first heating water circuit 110 to meet the water supply needs of most of the outlets 300.
[0069] In one possible implementation, the second heating water path 120 includes a heating element 121.
[0070] In this scheme, the heating element 121 has the advantages of good ductility, fast heat conduction and high thermal efficiency. The heating element 121 dries the second heating pipe 213 after drainage, so as to avoid the growth of bacteria in the second heating water circuit 120 after the residual water is discharged, which would pollute the water quality of the next water supply.
[0071] This embodiment provides a water circuit structure, with a heating water circuit 100 as the water circuit for supplying hot water. The first heating water circuit 110 heats the water flowing into the heating water circuit 100 to provide hot water that meets the temperature requirements of the outlet 300. After the water supply is completed, the return water circuit 200 discharges the residual water in the second heating water circuit 120 through the connection point to avoid the cooled residual water affecting the outlet water temperature of the next water supply. The water flow of the next water supply is directly heated by the first heating water pipe and flows out from the outlet 300, with a stable outlet water temperature. The second heating water circuit 120 dries the corresponding pipes to prevent bacteria from growing in the second heating water circuit 120 after the residual water is discharged, which would pollute the outlet water quality of the next water supply.
[0072] Example 2
[0073] This embodiment provides a water purifier, which includes the water circuit structure of Embodiment 1.
[0074] The water purifier provided in this embodiment uses a heating water path 100 as the water supply path for hot water. The first heating water path 110 heats the water flowing into the heating water path 100 to provide hot water that meets the temperature requirements of the outlet 300. After the water supply is completed, the return water path 200 discharges the residual water in the second heating water path 120 through the connection point to avoid the cooled residual water affecting the outlet water temperature of the next water supply. The water flow of the next water supply is directly heated by the first heating water pipe and flows out from the outlet 300, with a stable outlet water temperature. The second heating water path 120 dries the corresponding pipes to prevent bacteria from growing in the second heating water path 120 after the residual water is discharged, which would pollute the outlet water quality of the next water supply.
[0075] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.
Claims
1. A waterway structure, characterized in that, Including heating water circuit and return water circuit; The heating water circuit is connected to the return water circuit; The connection point between the heating water circuit and the return water circuit divides the heating water circuit into a first heating water circuit from the inlet to the connection point and a second heating water circuit from the connection point to the outlet. The first heating water path is used to heat the water flow in the water path so as to supply hot water to the outlet; The return water circuit is used to drain the remaining water in the second heating water circuit when the water outlet stops flowing out. The second heating water path is used to dry the pipeline from the connection point to the water outlet.
2. The waterway structure according to claim 1, characterized in that, The return water circuit includes a water pump and a water tank; The water pump is used to pump the remaining water in the second heating water circuit to the water tank; The water tank is equipped with a drain outlet for discharging excess water.
3. The waterway structure according to claim 2, characterized in that, The water pump is a reversible water pump, and it is also used to pump the remaining water in the water tank to the second heating water circuit to supply water to the outlet.
4. The waterway structure according to claim 3, characterized in that, The water tank is equipped with a temperature sensor.
5. The waterway structure according to claim 4, characterized in that, The return water path also includes a first heating device; The first heating device is used to heat the remaining water in the water tank in order to adjust the temperature of the water supplied to the outlet.
6. The waterway structure according to claim 5, characterized in that, The first heating device is a first heating tube disposed in the water tank.
7. The waterway structure according to claim 5, characterized in that, The first heating device is a second heating pipe configured on the return water line.
8. The waterway structure according to claim 1, characterized in that, The first heating water circuit includes a third heating pipe.
9. The waterway structure according to claim 1, characterized in that, The second heating water circuit includes a heating element.
10. A water purifier, characterized in that, The waterway structure includes any one of claims 1 to 9.