Hot water apparatus and water mixing device thereof

Abstract

The utility model provides a kind of hot water equipment and its water mixing device, the water mixing device includes water mixing pipeline and water mixing valve;The water mixing pipeline is connected between the water inlet pipeline and the water outlet pipeline of the hot water equipment;The water mixing valve is set on the water mixing pipeline, and the opening of the water mixing valve is used to adjust the water mixing flow of the water mixing pipeline.In the water inlet pipeline and the water outlet pipeline of hot water equipment, the water mixing pipeline is connected, and part of the cold water in the water inlet pipeline is introduced into the water outlet pipeline through the water mixing pipeline, when the outlet temperature in the water outlet pipeline is higher than the temperature required by user or set temperature, the temperature of hot water in the water outlet pipeline is reduced, to meet the water temperature demand of water heater.Further, the water mixing valve with adjustable opening is arranged in the water mixing pipeline, the water mixing flow in the water mixing pipeline can be adjusted according to actual demand, to reduce the water temperature fluctuation in the water outlet pipeline.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a hot water device and its mixing device. Background Technology

[0002] Water heaters on the market generally heat water using a built-in heating element, causing cold water entering the heater to absorb heat and output hot water. In actual use, the outlet water temperature is affected by various factors, including the cold water temperature, combustion power, heat exchanger efficiency, and the user's water consumption. When these factors fluctuate, the outlet water temperature can change abruptly, impacting the user experience.

[0003] To stabilize the outlet water temperature, most existing water heaters are equipped with a mixing pipe. The basic principle is to mix the cold water in the inlet pipe with the hot water in the outlet pipe through the mixing pipe, thereby reducing the overall temperature rise and achieving rapid temperature balance.

[0004] However, the flow rate in the mixing pipe of the existing technology is usually not adjustable, which can easily lead to a mismatch between the mixing flow rate and the actual demand. When the water load changes rapidly, it causes fluctuations in the outlet water temperature of the water heater. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defect of the non-adjustable flow rate in the mixing pipe of the prior art, which leads to fluctuations in the outlet water temperature, and to provide a hot water equipment and its mixing device.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] In a first aspect, this utility model provides a water mixing device for a hot water equipment, the water mixing device including a water mixing pipeline and a water mixing valve;

[0008] The mixing pipe is connected between the inlet pipe and the outlet pipe of the hot water equipment;

[0009] The mixing valve is installed on the mixing pipeline, and the opening degree of the mixing valve is used to adjust the mixing flow rate of the mixing pipeline.

[0010] Optionally, the mixing valve includes a coil, a valve core, and a magnet;

[0011] The coil is used to generate magnetic force;

[0012] One end of the valve core is a sealed structure, and the other end of the valve core is connected to the mixing pipe. A drainage structure is also provided between the two ends of the valve core.

[0013] The magnet is disposed on the valve core, and the magnet is used to adjust the position of the valve core in the mixing pipeline under the action of the magnetic force, thereby adjusting the opening degree of the mixing valve.

[0014] Optionally, the outer diameter of the valve core and the inner diameter of the mixing pipe are fitted together with an interference fit.

[0015] Secondly, this utility model provides a hot water device, which includes a mixing device as described in any one of the first aspects.

[0016] Optionally, the hot water device further includes a heating component;

[0017] The first opening of the heating component is connected to the water inlet pipe, and the second opening of the heating component is connected to the water outlet pipe.

[0018] Optionally, the hot water device further includes a controller;

[0019] The controller is electrically connected to the mixing valve, and the controller is used to send a first electrical signal to adjust the opening degree of the mixing valve;

[0020] Optionally, the controller is electrically connected to the heating component, and the controller is used to send a second electrical signal to adjust the heating power of the heating component.

[0021] Optionally, the hot water device further includes a first temperature sensor;

[0022] The first temperature sensor is disposed between the heating component and the mixing pipe on the water outlet pipe. The first temperature sensor is electrically connected to the controller and is used to collect the first water outlet temperature and send it to the controller.

[0023] The controller is used to adjust the opening degree of the mixing valve by sending a first electrical signal according to the first outlet water temperature.

[0024] Optionally, the hot water device further includes a second temperature sensor;

[0025] The second temperature sensor is disposed between the mixing pipe and the outlet on the water outlet pipe. The second temperature sensor is electrically connected to the controller and is used to collect the second outlet water temperature and send it to the controller.

[0026] The controller is used to adjust the opening degree of the mixing valve by sending a first electrical signal according to the second outlet water temperature.

[0027] Optionally, the hot water device further includes a flow sensor;

[0028] The flow sensor is installed on the water inlet pipe and is electrically connected to the controller. The flow sensor is used to collect the water inlet flow and send it to the controller.

[0029] The controller is used to adjust the opening of the mixing valve by sending a first electrical signal according to the inlet water flow rate.

[0030] Optionally, the hot water device further includes an input device;

[0031] The input device is electrically connected to the controller, and the input device is used to receive user commands and send them to the controller.

[0032] The controller is used to adjust the opening degree of the mixing valve by sending a first electrical signal according to the user instruction.

[0033] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0034] The significant advantages of this invention are as follows: A mixing pipe is installed between the inlet and outlet pipes of the hot water heater. This mixing pipe introduces a portion of the cold water from the inlet pipe into the outlet pipe. When the outlet water temperature exceeds the user's desired or set temperature, the hot water temperature in the outlet pipe is cooled to meet the water temperature requirements of the water heater. Furthermore, an adjustable mixing valve is installed in the mixing pipe, allowing for adjustment of the mixing flow rate according to actual needs, thus reducing water temperature fluctuations in the outlet pipe. Attached Figure Description

[0035] Figure 1 A schematic diagram of the structure of the mixing device of a hot water equipment provided as an exemplary embodiment of the present invention.

[0036] Figure 2 A schematic diagram of the structure of a hot water device provided for another exemplary embodiment of the present invention. Detailed Implementation

[0037] The present disclosure is further illustrated below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0038] In this embodiment of the invention, prefixes such as "first" and "second" are used merely to distinguish different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of ordinal numbers and other prefixes to distinguish descriptive objects in this disclosure does not constitute a limitation on the described objects. The description of the described objects is given in the claims or the context of the embodiments, and the use of such prefixes should not constitute an unnecessary limitation.

[0039] An exemplary embodiment of this utility model provides a water mixing device for a hot water equipment. See [link to relevant documentation]. Figure 1 The mixing device includes a mixing pipe 10 and a mixing valve 20.

[0040] The mixing pipe 10 is connected between the inlet pipe 30 and the outlet pipe 40 of the hot water equipment. The mixing valve 20 is installed on the mixing pipe 10, and the opening degree of the mixing valve 20 is used to adjust the mixing flow rate of the mixing pipe 10.

[0041] In this embodiment, a mixing pipe 10 is installed between the inlet pipe 30 and the outlet pipe 40 of the hot water equipment. A portion of the cold water from the inlet pipe 30 is introduced into the outlet pipe 40 through the mixing pipe 10. When the outlet water temperature in the outlet pipe 40 is higher than the user's desired temperature or the set temperature, the hot water temperature in the outlet pipe 40 is cooled to meet the water temperature requirements of the water heater. Furthermore, an adjustable mixing valve 20 is installed in the mixing pipe 10, which can adjust the mixing flow rate according to actual needs, reducing water temperature fluctuations in the outlet pipe 40.

[0042] In one embodiment, the mixing valve 20 can be configured according to actual needs, and can be any type such as a traditional manual valve or a solenoid valve. The opening degree of the mixing valve 20 can be manually adjusted by the user or controlled by the controller 60. This embodiment also provides another implementation of the mixing valve 20: the mixing valve 20 includes a coil 21, a valve core 22, and a magnet 23.

[0043] Regarding coil 21, coil 21 is used to generate magnetic force. The magnitude of the magnetic force of coil 21 is positively correlated with the magnitude of the electrical current flowing through coil 21, and the direction of the magnetic force is related to the direction of the electrical current. As those skilled in the art will know, the magnitude and direction of the magnetic force can be adjusted by adjusting the magnitude and direction of the electrical current flowing through coil 21. Furthermore, in some scenarios, coil 21 is placed around the mixing pipe 10 to prevent water in the mixing pipe 10 from interfering with or damaging coil 21.

[0044] Regarding valve core 22, it is generally a hollow structure with one end being a closed structure and the other end connected to the mixing pipe 10. A drain structure 221 is also provided between the two ends of valve core 22. The drain structure 221 can be multiple openings on valve core 22 or other structures, depending on the requirements. Under normal circumstances, water in the mixing pipe 10 enters valve core 22 from the end connected to the mixing pipe 10, then flows out of the mixing valve 20 through the drain structure 221, and finally reaches the outlet pipe 40. Therefore, by adjusting the position of the drain structure 221, the opening degree of the mixing valve 20 can be adjusted, thereby adjusting the water flow rate in the mixing pipe 10.

[0045] In addition, the valve core 22 provided in this embodiment is generally axially arranged in the mixing pipe 10. In some scenarios, it can also be radially arranged in the mixing pipe 10. Those skilled in the art can implement it according to their needs, and it will not be described in detail in this embodiment.

[0046] Regarding magnet 23, it is mounted on valve core 22. Magnet 23 is used to adjust the position of valve core 22 in mixing pipe 10 under the action of magnetic force, thereby adjusting the opening degree of mixing valve 20. Specifically, by using different currents, coil 21 can generate attraction forces of different magnitudes on magnet 23. Under the combined action of water flow impact force and attraction force, magnet 23 achieves different degrees of balance, realizing the adjustment of valve core 22, thereby regulating the mixing flow rate of mixing pipe 10.

[0047] When the valve core 22 is in the first position, the venting structure 221 is entirely within the mixing pipe 10, and the mixing valve 20 is completely closed. When the valve core 22 is in the second position, the venting structure 221 is fully exposed within the outlet pipe 40, and the mixing valve 20 is fully open. When the venting structure 221 is between the first and second positions, the mixing valve 20 is partially open, with the specific opening degree depending on the extent to which the venting structure 221 is exposed within the outlet pipe 40. By adjusting the valve core 22 between the first and second positions, the opening degree of the mixing valve 20 can be adjusted.

[0048] In an alternative embodiment, the outer diameter of the valve core 22 and the inner diameter of the mixing pipe 10 form an interference fit.

[0049] In an optional embodiment, the outer diameter of the valve core 22 is smaller than the inner diameter of the mixing pipe 10, so as to leave a certain margin so that some water can flow into the outlet pipe 40 through the gap between the outer diameter of the valve core 22 and the inner diameter of the mixing pipe 10.

[0050] An exemplary embodiment of this utility model also provides a hot water device, see [link to example]. Figure 2The hot water equipment includes the mixing device of the hot water equipment as described in the above embodiments.

[0051] In one embodiment, the hot water device further includes a heating element 50. A first opening of the heating element 50 is connected to an inlet pipe 30, and a second opening of the heating element 50 is connected to an outlet pipe 40.

[0052] The heating component 50 can be any one or more of a burner, heat exchanger, and electric heater. The heating component 50 is used to heat the cold water input into the inlet pipe 30, so that hot water flows out from the outlet pipe 40. The outlet of the outlet pipe 40 is used to provide the user with the required hot water.

[0053] In one embodiment, the hot water device further includes a controller 60.

[0054] In an alternative embodiment, the controller 60 is electrically connected to the mixing valve 20, and the controller 60 is used to send a first electrical signal to adjust the opening degree of the mixing valve 20.

[0055] Specifically, the first electrical signal flows through the coil 21, and the controller 60 adjusts the magnitude and direction of the magnetic force by adjusting the current of the first electrical signal, thereby adjusting the opening degree of the mixing valve 20. For details, please refer to the above embodiment, which will not be repeated here.

[0056] In an alternative embodiment, the controller 60 is electrically connected to the heating component 50, and the controller 60 is used to send a second electrical signal to adjust the heating power of the heating component 50.

[0057] In one embodiment, the hot water device further includes a first temperature sensor 70.

[0058] The first temperature sensor 70 is located on the outlet pipe 40 between the heating component 50 and the mixing pipe 10. The first temperature sensor 70 is electrically connected to the controller 60 and is used to collect the first outlet water temperature and send it to the controller 60. The controller 60 is used to adjust the opening of the mixing valve 20 by sending a first electrical signal based on the first outlet water temperature. The first outlet water temperature is the temperature of the water flowing directly from the heating component 50.

[0059] Specifically, when the first outlet water temperature is higher than the user's required temperature or the set temperature, the opening of the mixing valve 20 is adjusted through the first electrical signal to increase the mixing flow rate of the mixing pipe 10, thereby reducing the outlet water temperature in the outlet pipe 40. When the first outlet water temperature is lower than or equal to the user's required temperature or the set temperature, the opening of the mixing valve 20 is adjusted through the first electrical signal to reduce the mixing flow rate of the mixing pipe 10, thus avoiding a decrease in the outlet water temperature in the outlet pipe 40. At the same time, the controller 60 can also increase the heating power of the heating component 50 through the second electrical signal to increase the outlet water temperature in the outlet pipe 40 until it meets the user's requirements.

[0060] In an alternative embodiment, the hot water device further includes a second temperature sensor 80.

[0061] The second temperature sensor 80 is installed on the outlet pipe 40 between the mixing pipe 10 and the outlet. The second temperature sensor 80 is electrically connected to the controller 60 and is used to collect the second outlet water temperature and send it to the controller 60. The controller 60 is used to adjust the opening of the mixing valve 20 by sending a first electrical signal based on the second outlet water temperature and / or the first outlet water temperature. The second outlet water temperature is the temperature of the water after mixing through the mixing pipe 10.

[0062] The specific control methods are as follows:

[0063] When the second outlet water temperature is higher than the user's required temperature or the set temperature, the opening of the mixing valve 20 is adjusted by the first electrical signal to increase the mixing flow rate of the mixing pipe 10, thereby reducing the outlet water temperature in the outlet pipe 40. When the second outlet water temperature is lower than or equal to the user's required temperature or the set temperature, the opening of the mixing valve 20 is adjusted by the first electrical signal to reduce the mixing flow rate of the mixing pipe 10, so as to avoid reducing the outlet water temperature in the outlet pipe 40. At the same time, the controller 60 can also increase the heating power of the heating component 50 by the second electrical signal to increase the outlet water temperature in the outlet pipe 40 until it meets the user's requirements.

[0064] Alternatively, when the difference between the second and first outlet water temperatures is greater than a first preset difference, the mixing flow rate in the mixing pipe 10 is relatively large. In this case, the opening of the mixing valve 20 needs to be adjusted via the first electrical signal to reduce the mixing flow rate in the mixing pipe 10, thus preventing a decrease in the outlet water temperature in the outlet pipe 40. When the difference between the second and first outlet water temperatures is less than or equal to the second preset difference, the mixing flow rate in the mixing pipe 10 is relatively small. In this case, the opening of the mixing valve 20 needs to be adjusted via the first electrical signal to increase the mixing flow rate in the mixing pipe 10, thereby reducing the outlet water temperature in the outlet pipe 40. The preset difference can be selected according to the actual situation and is not particularly limited in this embodiment. As an example, the first preset difference is 1 degree and the second preset difference is 0.5 degrees.

[0065] The above control methods can be selected or used in combination according to the actual situation.

[0066] In one embodiment, the hot water device further includes a flow sensor 90.

[0067] A flow sensor 90 is installed on the water inlet pipe 30 and is electrically connected to the controller 60. The flow sensor 90 is used to collect the water inlet flow and send it to the controller 60. The controller 60 is used to adjust the opening of the mixing valve 20 by sending a first electrical signal according to the water inlet flow.

[0068] The specific control methods are as follows;

[0069] When the water heater is working normally, if the inlet water flow rate is detected to be greater than the flow rate threshold, there is a risk that the outlet water temperature will fluctuate downward. At this time, the opening of the mixing valve 20 can be adjusted by the first electrical signal to reduce the mixing flow rate of the mixing pipe 10. If the inlet water flow rate threshold is detected, there is a risk that the outlet water temperature will fluctuate upward. At this time, the opening of the mixing valve 20 can be adjusted by the first electrical signal to increase the mixing flow rate of the mixing pipe 10.

[0070] Alternatively, if the difference between the current inlet flow rate and the previous inlet flow rate is greater than a third preset difference, there is a risk of downward fluctuation in the outlet water temperature. In this case, the opening of the mixing valve 20 can be adjusted via the first electrical signal to reduce the mixing flow rate in the mixing pipe 10. If the difference between the previous inlet flow rate and the current inlet flow rate is greater than a fourth preset difference, there is a risk of upward fluctuation in the outlet water temperature. In this case, the opening of the mixing valve 20 can be adjusted via the first electrical signal to increase the mixing flow rate in the mixing pipe 10. The third and fourth preset differences can be set according to actual conditions, and will not be elaborated upon in this embodiment. For example, if a user turns on the tap after a period of inactivity, there is a risk of upward fluctuation in the outlet water temperature. Adjusting the opening of the mixing valve 20 via the first electrical signal increases the mixing flow rate in the mixing pipe 10, thereby reducing the outlet water temperature in the outlet pipe 40.

[0071] The above control methods can be selected or used in combination according to the actual situation.

[0072] In one embodiment, the hot water device further includes an input device.

[0073] The input device is electrically connected to the controller 60. The input device is used to receive user instructions and send them to the controller 60. The controller 60 is used to adjust the opening degree of the mixing valve 20 by sending a first electrical signal according to the user instructions. The input device can be any one or more of a control panel or a voice input module.

[0074] Specifically, taking the voice input module as an example, the voice input module receives user commands, which are then parsed by the voice parsing module in the controller. Based on the parsed user commands, the controller generates a first electrical signal to execute the corresponding operation, thereby realizing intelligent control of the hot water equipment and improving the user experience.

Claims

1. A mixing device for a hot water equipment, characterized in that, The water mixing device includes a water mixing pipeline and a water mixing valve; The mixing pipe is connected between the inlet pipe and the outlet pipe of the hot water equipment; The mixing valve is installed on the mixing pipeline, and the opening degree of the mixing valve is used to adjust the mixing flow rate of the mixing pipeline.

2. The mixing device of the hot water equipment as described in claim 1, characterized in that, The mixing valve includes a coil, a valve core, and a magnet; The coil is used to generate magnetic force; One end of the valve core is a sealed structure, and the other end of the valve core is connected to the mixing pipe. A drainage structure is also provided between the two ends of the valve core. The magnet is disposed on the valve core, and the magnet is used to adjust the position of the valve core in the mixing pipeline under the action of the magnetic force, thereby adjusting the opening degree of the mixing valve.

3. The mixing device of the hot water equipment as described in claim 2, characterized in that, The outer diameter of the valve core and the inner diameter of the mixing pipe form an interference fit.

4. A hot water device, characterized in that, The hot water equipment includes the mixing device of the hot water equipment as described in any one of claims 1-3.

5. The hot water equipment as described in claim 4, characterized in that, The hot water equipment also includes a heating component; The first opening of the heating component is connected to the water inlet pipe, and the second opening of the heating component is connected to the water outlet pipe.

6. The hot water equipment as described in claim 5, characterized in that, The hot water equipment also includes a controller; The controller is electrically connected to the mixing valve, and the controller is used to send a first electrical signal to adjust the opening degree of the mixing valve; And / or, the controller is electrically connected to the heating component, and the controller is used to send a second electrical signal to adjust the heating power of the heating component.

7. The hot water equipment as described in claim 6, characterized in that, The hot water device also includes a first temperature sensor; The first temperature sensor is disposed between the heating component and the mixing pipe on the water outlet pipe. The first temperature sensor is electrically connected to the controller and is used to collect the first water outlet temperature and send it to the controller. The controller is used to adjust the opening degree of the mixing valve by sending a first electrical signal according to the first outlet water temperature.

8. The hot water equipment as described in claim 6 or 7, characterized in that, The hot water device also includes a second temperature sensor; The second temperature sensor is disposed between the mixing pipe and the outlet on the water outlet pipe. The second temperature sensor is electrically connected to the controller and is used to collect the second outlet water temperature and send it to the controller. The controller is used to adjust the opening degree of the mixing valve by sending a first electrical signal according to the second outlet water temperature.

9. The hot water equipment as described in any one of claims 6-8, characterized in that, The hot water equipment also includes a flow sensor; The flow sensor is installed on the water inlet pipe and is electrically connected to the controller. The flow sensor is used to collect the water inlet flow and send it to the controller. The controller is used to adjust the opening of the mixing valve by sending a first electrical signal according to the inlet water flow rate.

10. The hot water equipment as described in claim 6, characterized in that, The hot water equipment also includes an input device; The input device is electrically connected to the controller, and the input device is used to receive user commands and send them to the controller. The controller is used to adjust the opening degree of the mixing valve by sending a first electrical signal according to the user instruction.

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