Circulating water pump and water heater comprising same

Abstract

The utility model provides a circulating water pump and a water heater comprising the same. The circulating water pump comprises a water pump shell, a water pump rotating shaft, a water pump rotor, a water path reversing piece and a flow stabilizing valve. A containing cavity, a first water outlet channel and a second water outlet channel are formed in the water pump shell, wherein the first water outlet channel and the second water outlet channel communicate with the containing cavity. The flow stabilizing valve is arranged in the second water outlet channel. The water pump rotating shaft, the water pump rotor and the waterway reversing piece are arranged in the containing cavity, the water pump rotating shaft is connected with the water pump shell and sleeved with the water pump rotor, and the end, away from the water pump rotating shaft, of the water pump rotor is fixedly connected with the waterway reversing piece; when the water pump rotating shaft rotates, the water path reversing piece communicates with the containing cavity and the first water outlet channel. When the water pump rotating shaft is static, the water way reversing piece communicates with the containing cavity and the second water outlet channel. By arranging the specific structure of the circulating water pump, it can be guaranteed that in the normal use process, the flow stabilizing valve plays a flow stabilizing role, and in the circulating or pressurizing process, the normal flow of circulating water flow or the effective pressurizing effect can also be guaranteed.

Description

Technical Field

[0001] This utility model relates to a circulating water pump and a water heater containing the same. Background Technology

[0002] A circulating water pump is used to circulate liquids continuously within a system to overcome loop resistance during the circulation process. In existing technology, circulating water pumps are typically used in conjunction with flow stabilizing valves to prevent water fluctuations. Because the circulating water pump and flow stabilizing valve are connected in series, the flow stabilizing valve plays a role in stabilizing the flow during liquid circulation or pressurization.

[0003] However, the flow stabilizing valve plays a role in stabilizing the flow during liquid circulation or pressurization, which can restrict circulation or pressurization, resulting in insufficient circulating water flow or insignificant pressurization effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect in the prior art that the flow stabilizing effect of the flow stabilizing valve will limit the circulation or pressurization because the circulating water pump and the flow stabilizing valve are connected in series. This utility model provides a circulating water pump and a water heater including the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A circulating water pump, characterized in that the circulating water pump includes: a pump housing, a pump shaft, a pump rotor, a water circuit reversing component, and a flow stabilizing valve;

[0007] The pump housing has a accommodating cavity, a first water outlet channel and a second water outlet channel respectively connected to the accommodating cavity, and an inlet connected to the accommodating cavity on the pump housing. The flow stabilizing valve is located in the second water outlet channel.

[0008] The water pump shaft, water pump rotor, and water circuit reversing component are all disposed within the accommodating cavity. The water pump shaft is connected to the water pump housing, the water pump rotor is sleeved on the water pump shaft, and the end of the water pump rotor away from the water pump shaft is fixedly connected to the water circuit reversing component.

[0009] When the water pump shaft rotates, the water pump rotor drives the water circuit reversing component away from the initial position and moves it to the working position in a direction away from the water pump shaft, connecting the accommodating cavity with the first water outlet channel;

[0010] When the water pump shaft is stationary, under the action of the restoring force, the water circuit reversing component returns from the working position to the initial position, connecting the accommodating cavity and the second water outlet channel.

[0011] In this technical solution, by setting a first water outlet channel and a second water outlet channel respectively connected to the receiving cavity, the first water outlet channel and the second water outlet channel correspond to normal use and pressurization use, respectively. That is, when using hot water normally, the water pump shaft is in a stationary state. At this time, under the action of restoring force, the water circuit reversing component is in the initial position, and the water circuit passes through the inlet, the receiving cavity, and the second water outlet channel in sequence, thus bypassing the flow stabilizing valve, which can play a pressure stabilizing role. When pressurizing or circulating, by utilizing the characteristics of the water pump rotor, the water circuit reversing component is lifted by the water pump rotor, so that the water circuit reversing component is in the working position, and the water circuit passes through the inlet, the receiving cavity, and the first water outlet channel in sequence, thus bypassing the flow stabilizing valve and flowing directly through the first water outlet channel. In this way, it can be ensured that the flow stabilizing valve plays a flow stabilizing role during normal use, and that the normal flow rate or effective pressurization effect of the circulating water is guaranteed during circulation or pressurization.

[0012] Preferably, the pump rotor is provided with a flow guiding channel communicating with the accommodating cavity;

[0013] The water circuit reversing component includes a switching channel, which is connected to the flow guiding channel. The axial direction of the switching channel is the same as the axial direction of the water pump rotor, and a communication port is opened on the side wall of the switching channel.

[0014] When the water channel reversing component is in the working position, the connecting port is connected to the first water outlet channel;

[0015] When the water channel reversing component is in the initial position, the connecting port is connected to the second water outlet channel.

[0016] In this technical solution, the above-mentioned configuration provides a specific structure for a waterway reversing component.

[0017] Preferably, the circulating water pump further includes a first seal and a second seal, both of which are used to seal the gap between the water circuit reversing component and the accommodating cavity, and are located on both sides of the communication port along the axial direction of the water circuit reversing component.

[0018] In this technical solution, by setting a first sealing element and a second sealing element, liquid is prevented from entering the first water outlet channel or the second water outlet channel through the gap between the water channel reversing element and the receiving cavity.

[0019] Preferably, the axial directions of the first water outlet channel and the second water outlet channel are both perpendicular to the axial direction of the switching channel.

[0020] In this technical solution, by setting the axes of the first water outlet channel and the second water outlet channel to be perpendicular to the axis of the switching channel, the overall structure of the circulating water pump is made compact.

[0021] Preferably, the circulating water pump further includes an elastic structure for returning the water circuit reversing component from the working position to the initial position.

[0022] In this technical solution, an elastic structure is provided to provide restoring force for the resetting of the water channel commutator.

[0023] Preferably, the circulating water pump further includes a water pump drive assembly for driving the water pump shaft to rotate.

[0024] Preferably, the water pump drive assembly includes a solenoid valve coil and a magnetic component, and the water pump rotor is sleeved on the water pump shaft through a rotor bushing, with a gap between the rotor bushing and the water pump shaft.

[0025] The magnetic component is located on the outside of the rotor bushing. When the circulating water pump is in operation, the solenoid valve coil is energized, and the solenoid valve coil drives the water pump rotor to rotate through the magnetic component.

[0026] In this technical solution, by setting the water pump drive component as a solenoid valve coil and a magnetic component, it has the advantage of small size, thereby reducing the overall size of the circulating water pump and improving the assembly flexibility of the circulating water pump.

[0027] Preferably, the inner diameters of the first water outlet channel and the second water outlet channel are the same.

[0028] In this technical solution, by setting the inner diameter of the first water outlet channel and the second water outlet channel to be the same, it can be ensured that the same flow rate can be maintained in the channel regardless of whether the connection port is connected to the first water outlet channel or the second water outlet channel.

[0029] Preferably, the flow stabilizing valve is provided with a flow stabilizing channel for liquid flow stabilization;

[0030] The flow stabilizing valve includes a flow stabilizing housing, a movable flow stabilizing component, and a sealing ring; the flow stabilizing housing, the movable flow stabilizing component, and the sealing ring are coaxially arranged with the second water outlet channel; the movable flow stabilizing component is slidably connected to the flow stabilizing housing, and a flow stabilizing channel is formed between the movable flow stabilizing component and the flow stabilizing housing; the sealing ring is disposed between the flow stabilizing housing and the movable flow stabilizing component.

[0031] When the sealing ring is compressed, the flow stabilizing channel becomes smaller; when the sealing ring is restored, the flow stabilizing channel becomes larger.

[0032] In this technical solution, the above-mentioned settings provide a specific structure for a flow stabilizing valve.

[0033] A water heater characterized in that it includes a circulating water pump as described above.

[0034] The positive and progressive effects of this utility model are as follows:

[0035] This invention provides a first water outlet channel and a second water outlet channel, respectively connected to the accommodating cavity. These channels correspond to normal use and pressurized use, respectively. Specifically, during normal hot water use, the pump shaft is stationary. Under the action of restoring force, the water circuit reversing component is in its initial position, and the water flows sequentially through the inlet, the accommodating cavity, and the second water outlet channel, bypassing the flow stabilizing valve, which provides pressure stabilization. During pressurization or circulation, the pump rotor's characteristics are utilized to lift the water circuit reversing component, placing it in its working position. The water flows sequentially through the inlet, the accommodating cavity, and the first water outlet channel, bypassing the flow stabilizing valve and flowing directly through the first water outlet channel. This ensures that the flow stabilizing valve provides flow stabilization during normal use and guarantees normal flow rate or effective pressurization during circulation or pressurization. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a circulating water pump according to a preferred embodiment of the present invention.

[0037] Figure 2 This is a schematic diagram of the structure of the water circuit reversing component of the circulating water pump in the initial position according to a preferred embodiment of the present invention.

[0038] Figure 3 This is a schematic diagram of the structure of the water circuit reversing component of the circulating water pump in the working position according to a preferred embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of the flow stabilizing valve of a circulating water pump according to a preferred embodiment of the present invention.

[0040] Figure 5 This is a schematic diagram of the structure of a water heater according to a preferred embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures

[0042] Water heater 100

[0043] Circulating water pump 1

[0044] Water pump housing 10

[0045] 11 Container

[0046] First water outlet channel 12

[0047] Second water outlet channel 13

[0048] Inlet 14

[0049] Water pump shaft 21

[0050] Water pump rotor 22

[0051] Flow channel 221

[0052] Rotor sleeve 23

[0053] Waterway reversing component 30

[0054] Switch channel 31

[0055] Connector 32

[0056] Flow stabilizer 40

[0057] Regulated current channel 41

[0058] Current-regulating housing 42

[0059] Active current stabilizer 43

[0060] Sealing ring 44

[0061] First sealing element 51

[0062] Second seal 52

[0063] Elastic structure 60

[0064] Water pump drive assembly 70

[0065] Solenoid valve coil 71

[0066] Magnetic component 72

[0067] Water pump shield 80

[0068] Base 90

[0069] Axial O of the switching channel

[0070] Axial P of the water pump rotor

[0071] Axial Q1 of the first water outlet channel

[0072] Axial Q2 of the second water outlet channel

[0073] The inner diameter d1 of the first water outlet channel

[0074] The inner diameter d2 of the first water outlet channel Detailed Implementation

[0075] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0076] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0078] like Figures 1 to 4 As shown, this embodiment provides a circulating water pump 1, which includes: a water pump housing 10, a water pump shaft 21, a water pump rotor 22, a water circuit reversing component 30, and a flow stabilizing valve 40.

[0079] The pump housing 10 has a accommodating cavity 11, a first outlet channel 12 and a second outlet channel 13 respectively connected to the accommodating cavity 11. The pump housing 10 has an inlet 14 connected to the accommodating cavity 11. A flow stabilizing valve 40 is disposed in the second outlet channel 13. The pump shaft 21, the pump rotor 22 and the water circuit reversing component 30 are all disposed in the accommodating cavity 11. The pump shaft 21 is connected to the pump housing 10. The pump rotor 22 is sleeved on the pump shaft 21. The end of the pump rotor 22 away from the pump shaft 21 is fixedly connected to the water circuit reversing component 30.

[0080] When the pump shaft 21 rotates, the pump rotor 22 drives the water circuit reversing component 30 away from the initial position and moves it to the working position in a direction away from the pump shaft 21, connecting the accommodating cavity 11 and the first water outlet channel 12; when the pump shaft 21 is stationary, under the action of the restoring force, the water circuit reversing component 30 returns from the working position to the initial position, connecting the accommodating cavity 11 and the second water outlet channel 13.

[0081] Thus, by setting up a first water outlet channel 12 and a second water outlet channel 13 that are respectively connected to the accommodating cavity 11, the first water outlet channel 12 and the second water outlet channel 13 correspond to normal use and pressurized use, respectively. That is, when using hot water normally, the water pump shaft 21 is in a stationary state. At this time, under the action of the restoring force, the water circuit reversing component 30 is in the initial position, and the water circuit passes through the inlet 14, the accommodating cavity 11, and the second water outlet channel 13 in sequence, so as not to bypass the flow stabilizing valve 40, which can play a role in stabilizing pressure. When pressurizing or circulating, by utilizing the characteristics of the water pump rotor 22, the water circuit reversing component 30 is lifted by the water pump rotor 22, so that the water circuit reversing component 30 is in the working position, and the water circuit passes through the inlet 14, the accommodating cavity 11, and the first water outlet channel 12 in sequence, thereby bypassing the flow stabilizing valve 40 and flowing directly through the first water outlet channel 12. This ensures that the flow stabilizing valve 40 functions as a flow stabilizer during normal use, and also ensures the normal flow rate or effective pressure boosting effect of the circulating water during circulation or pressurization.

[0082] It should be noted that the water pump housing 10 is used to house the parts of the circulating water pump 1 and to provide a fixed base for the parts of the circulating water pump 1; the water pump shaft 21 is used to drive the water pump rotor 22 to rotate; the water pump rotor 22 is used to guide the flow of liquid; the flow stabilizing valve 40 is used to limit the liquid flow rate and thus stabilize the flow; and the water inlet 14 is used for the liquid to flow into the circulating water pump 1.

[0083] Specifically, the pump rotor 22 has a flow guide channel 221 communicating with the accommodating cavity 11; the water circuit reversing component 30 includes a switching channel 31, which communicates with the flow guide channel 221. The axial direction O of the switching channel 31 is in the same direction as the axial direction P of the pump rotor 22, and a connecting port 32 is opened on the side wall of the switching channel 31. When the water circuit reversing component 30 is in the working position, the connecting port 32 communicates with the first water outlet channel 12; when the water circuit reversing component 30 is in the initial position, the connecting port 32 communicates with the second water outlet channel 13.

[0084] In this embodiment, the circulating water pump 1 further includes a first sealing element 51 and a second sealing element 52. Both the first sealing element 51 and the second sealing element 52 are used to seal the gap between the water channel reversing component 30 and the receiving cavity 11, and are located on both sides of the connecting port 32 along the axial direction of the water channel reversing component 30. Thus, by providing the first sealing element 51 and the second sealing element 52, liquid is prevented from entering the first water outlet channel 12 or the second water outlet channel 13 through the gap between the water channel reversing component 30 and the receiving cavity 11. The axial direction of the water channel reversing component 30 is the same as the axial direction O of the switching channel 31.

[0085] In this embodiment, the axial direction Q1 of the first water outlet channel 12 and the axial direction Q2 of the second water outlet channel 13 are both perpendicular to the axial direction O of the switching channel 31. In this way, by setting the axial direction Q1 of the first water outlet channel 12 and the axial direction Q2 of the second water outlet channel 13 to be perpendicular to the axial direction O of the switching channel 31, the overall structure of the circulating water pump 1 is made compact.

[0086] In this embodiment, the inner diameter d1 of the first water outlet channel 12 and the inner diameter d2 of the second water outlet channel 13 are the same. In this way, by setting the inner diameter d1 of the first water outlet channel 12 and the inner diameter d2 of the second water outlet channel 13 to be the same, it can be ensured that the same flow rate can be maintained in the channel regardless of whether the connecting port 32 is connected to the first water outlet channel 12 or the second water outlet channel 13.

[0087] In this embodiment, the circulating water pump 1 further includes an elastic structure 60, which is used to return the water channel reversing member 30 from its working position to its initial position. Thus, by providing the elastic structure 60, a restoring force is provided for the reset of the water channel reversing member 30. Specifically, the elastic structure 60 is a spring, but it is not limited to this; it can also be other components capable of providing a restoring force.

[0088] When the water pump rotor 22 is rotating, the elastic structure 60 is in a compressed state. When the water pump rotor 22 changes from a rotating state to a stationary state, the elastic structure 60 is used to release the elastic force to provide a restoring force for the reset of the water circuit reversing component 30.

[0089] In this embodiment, please refer to the following: Figure 4The flow stabilizing valve 40 is provided with a flow stabilizing channel 41 for stabilizing liquid flow. The flow stabilizing valve 40 includes a flow stabilizing housing 42, a movable flow stabilizing element 43, and a sealing ring 44. The flow stabilizing housing 42, the movable flow stabilizing element 43, and the sealing ring 44 are coaxially arranged with the second water outlet channel 13. The movable flow stabilizing element 43 is slidably connected to the flow stabilizing housing 42, and a flow stabilizing channel 41 is formed between the movable flow stabilizing element 43 and the flow stabilizing housing 42. The sealing ring 44 is disposed between the flow stabilizing housing 42 and the movable flow stabilizing element 43. By coaxially arranging the flow stabilizing housing 42, the movable flow stabilizing element 43, and the sealing ring 44 with the second water outlet channel 13, the uniformity of liquid flow from the flow stabilizing valve 40 is improved, thereby enhancing the flow stabilizing stability of the flow stabilizing valve 40.

[0090] During the sliding process between the movable flow stabilizer 43 and the flow stabilizer housing 42, the sealing ring 44 is compressed or restored. Specifically, when the sealing ring 44 is compressed, the flow stabilizing channel 41 becomes smaller; when the sealing ring 44 is restored, the flow stabilizing channel 41 becomes larger. When the water circuit reversing component 30 is in its initial position and the connecting port 32 is connected to the second water outlet channel 13, if the flow rate entering the second water outlet channel 13 increases, the movable flow stabilizer 43, under the action of the liquid, compresses the sealing ring 44, thereby achieving the flow stabilization effect.

[0091] In other embodiments, the flow regulator 40 may also be other structures capable of limiting the liquid flow rate, which are not limited here.

[0092] The circulating water pump 1 also includes a water pump drive assembly 70, which is used to drive the water pump shaft 21 to rotate.

[0093] Specifically, the water pump drive assembly 70 includes a solenoid valve coil 71 and a magnetic element 72. The water pump rotor 22 is sleeved on the water pump shaft 21 via a rotor sleeve 23, with a gap between the rotor sleeve 23 and the water pump shaft 21. The magnetic element 72 is located on the outside of the rotor sleeve 23. When the circulating water pump 1 is in operation, the solenoid valve coil 71 is energized, and the solenoid valve coil 71 drives the water pump rotor 22 to rotate via the magnetic element 72. Thus, by configuring the water pump drive assembly 70 as a solenoid valve coil 71 and a magnetic element 72, it has the advantage of small size, thereby reducing the overall size of the circulating water pump 1 and improving the assembly flexibility of the circulating water pump 1. By providing a gap between the rotor sleeve 23 and the water pump shaft 21, the rotor sleeve 23 can slide up and down relative to the water pump shaft 21 under the action of centrifugal force when the water pump shaft 21 rotates. This allows the water pump rotor 22 to lift the water circuit reversing component 30, enabling the water circuit reversing component 30 to switch between its initial position and its operating position.

[0094] Specifically, the magnetic component 72 is a permanent magnet block.

[0095] In other embodiments, the pump drive assembly 70 may also employ a drive unit such as a motor.

[0096] In this embodiment, a water pump shield 80 is provided between the solenoid valve coil 71 and the magnetic component 72. The water pump shield 80 is used to isolate and seal the liquid from the solenoid valve coil 71. In this way, by providing a water pump shield 80 between the solenoid valve coil 71 and the magnetic component 72, liquid leakage is prevented from affecting the operation of the circulating water pump 1, thereby improving the reliability of the circulating water pump 1.

[0097] In this embodiment, with the application of the water pump shield 80, the circulating water pump 1 can be used to transport liquids that are corrosive, flammable, explosive, highly toxic, radioactive, or valuable; at the same time, the circulating water pump 1 can also be used in special occasions such as high temperature, high pressure, or low temperature; thereby improving the application range of the circulating water pump 1.

[0098] In this embodiment, the water pump shaft 21 is a ceramic shaft. By setting the water pump shaft 21 as a ceramic shaft, the wear resistance and stability of the water pump shaft 21 are improved, thereby improving the stability of the rotor bushing 23, the water pump rotor 22 and the flow stabilizing valve 40, improving the stability of the first flow channel, and thus improving the circulating liquid flow rate and the pressurization effect.

[0099] In this embodiment, the circulating water pump 1 also includes a base 90, which is fixedly connected to the water pump shield 80, and the water pump shaft 21 is fixedly connected to the base 90.

[0100] The working principle of circulating water pump 1 in this embodiment is as follows:

[0101] Please refer to the following: Figure 2 When the water heater 100 is in normal working condition, the solenoid valve coil 71 is not energized and the water pump rotor 22 does not rotate. At this time, under the action of the elastic element, the water pump shaft 21 is stationary. Under the action of the restoring force of the elastic structure 60, the water circuit reversing element 30 is placed in the initial position. The water circuit passes through the inlet 14, the accommodating cavity 11, and the second outlet channel 13 in sequence, so as not to bypass the flow stabilizer 40. The flow stabilizer 40 can play a pressure stabilizing role.

[0102] Please refer to the following: Figure 3 When the water heater 100 is in circulation or pressurization mode, the solenoid valve coil 71 is energized. The solenoid valve coil 71 drives the magnetic component 72 to rotate through the principle of electromagnetic induction, which in turn drives the rotor sleeve 23 to rotate. Under the action of centrifugal force, the rotor sleeve 23 slides away from the water pump shaft 21 relative to the water pump shaft 21, which in turn drives the water pump rotor 22 to slide relative to the water pump shaft 21. The water pump rotor 22 lifts the water circuit reversing component 30, so that the water circuit reversing component 30 is in the working position. The water circuit passes through the inlet 14, the accommodating cavity 11 and the first water outlet channel 12 in sequence, thereby bypassing the flow stabilizing valve 40 located in the second water outlet channel 13 and flowing directly through the first water outlet channel 12.

[0103] like Figure 5 As shown, this embodiment also provides a water heater 100, which includes the circulating water pump 1 as described above. The circulating water pump 1 is disposed at the water inlet of the water heater 100.

[0104] This embodiment establishes a first water outlet channel 12 and a second water outlet channel 13, respectively connected to the accommodating cavity 11. The first and second water outlet channels 12 and 13 correspond to normal and pressurized use, respectively. Specifically, during normal hot water use, the water pump shaft 21 is stationary. Under the action of restoring force, the water circuit reversing component 30 is in its initial position, and the water flows sequentially through the inlet 14, the accommodating cavity 11, and the second water outlet channel 13, thus avoiding bypassing the flow regulator 40. The flow regulator 40 can... It plays a role in stabilizing pressure; during pressurization or circulation, the characteristics of the water pump rotor 22 are utilized to lift the water circuit reversing component 30, so that the water circuit reversing component 30 is in the working position. The water flows through the inlet 14, the accommodating cavity 11 and the first outlet channel 12 in sequence, thereby bypassing the flow stabilizing valve 40 and flowing directly through the first outlet channel 12. In this way, it can ensure that the flow stabilizing valve 40 plays a role in stabilizing the flow during normal use, and also ensure the normal flow rate or effective pressurization effect of the circulating water during circulation or pressurization.

[0105] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model 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 utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A circulating water pump characterized by, The circulating water pump includes: a pump housing, a pump shaft, a pump rotor, a water circuit reversing component, and a flow stabilizing valve; The pump housing has a accommodating cavity, a first water outlet channel and a second water outlet channel respectively connected to the accommodating cavity, and an inlet connected to the accommodating cavity on the pump housing. The flow stabilizing valve is located in the second water outlet channel. The water pump shaft, water pump rotor, and water circuit reversing component are all disposed within the accommodating cavity. The water pump shaft is connected to the water pump housing, the water pump rotor is sleeved on the water pump shaft, and the end of the water pump rotor away from the water pump shaft is fixedly connected to the water circuit reversing component. When the water pump shaft rotates, the water pump rotor drives the water circuit reversing component away from the initial position and moves it to the working position in a direction away from the water pump shaft, connecting the accommodating cavity with the first water outlet channel; When the water pump shaft is stationary, under the action of the restoring force, the water circuit reversing component returns from the working position to the initial position, connecting the accommodating cavity and the second water outlet channel.

2. The circulating water pump of claim 1, wherein The water pump rotor is provided with a flow guiding channel that communicates with the accommodating cavity; The water circuit reversing component includes a switching channel, which is connected to the flow guiding channel. The axial direction of the switching channel is the same as the axial direction of the water pump rotor, and a communication port is opened on the side wall of the switching channel. When the water channel reversing component is in the working position, the connecting port is connected to the first water outlet channel; When the water channel reversing component is in the initial position, the connecting port is connected to the second water outlet channel.

3. The circulating water pump of claim 2, wherein The circulating water pump further includes a first seal and a second seal, both of which are used to seal the gap between the water circuit reversing component and the accommodating cavity, and are located on both sides of the communication port along the axial direction of the water circuit reversing component.

4. The circulating water pump of claim 2, wherein The axial directions of the first water outlet channel and the second water outlet channel are both perpendicular to the axial direction of the switching channel.

5. The circulating water pump of claim 1, wherein The circulating water pump also includes an elastic structure, which is used to return the water circuit reversing component from the working position to the initial position.

6. The circulating water pump of claim 1, wherein The circulating water pump also includes a water pump drive assembly, which is used to drive the water pump shaft to rotate.

7. The circulating water pump as described in claim 6, characterized in that, The water pump drive assembly includes a solenoid valve coil and a magnetic component. The water pump rotor is sleeved on the water pump shaft through a rotor bushing, and there is a gap between the rotor bushing and the water pump shaft. The magnetic component is located on the outside of the rotor bushing. When the circulating water pump is in operation, the solenoid valve coil is energized, and the solenoid valve coil drives the water pump rotor to rotate through the magnetic component.

8. The circulating water pump as described in claim 1, characterized in that, The first water outlet channel and the second water outlet channel have the same inner diameter.

9. The circulating water pump as described in claim 1, characterized in that, The flow stabilizing valve is provided with a flow stabilizing channel for liquid flow stabilization; The flow stabilizing valve includes a flow stabilizing housing, a movable flow stabilizing component, and a sealing ring; the flow stabilizing housing, the movable flow stabilizing component, and the sealing ring are coaxially arranged with the second water outlet channel; the movable flow stabilizing component is slidably connected to the flow stabilizing housing, and a flow stabilizing channel is formed between the movable flow stabilizing component and the flow stabilizing housing; the sealing ring is disposed between the flow stabilizing housing and the movable flow stabilizing component. When the sealing ring is compressed, the flow stabilizing channel becomes smaller; when the sealing ring is restored, the flow stabilizing channel becomes larger.

10. A water heater, characterized in that, It includes the circulating water pump as described in any one of claims 1-9.

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