Submersible pump assembly and electric appliance

Abstract

The submersible pump assembly comprises a submersible pump, a connector, a water outlet pipe and an air inlet pipe, and the submersible pump is provided with a water inlet and a water outlet; the connector is provided with a first port, a second port and a third port, and the first port is connected with the water outlet; the water outlet pipe is connected with the second port, and the air inlet pipe is connected with the third port. When the submersible pump assembly works again, even if a water column exists in the water outlet pipe, gas in the external environment can enter the submersible pump through the gas inlet pipe and the third port, and gas entering the submersible pump through the third port can enter the water outlet pipe through the second port and can also enter the submersible pump through the first port. The gas pressure in the water outlet pipe and the submersible pump is equal to the atmospheric pressure, contact between an impeller of the submersible pump and water is not affected, the submersible pump can normally pump water, and the reliability of the submersible pump assembly is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water pumps, and particularly to a submersible pump assembly and an electrical appliance. Background Art

[0002] A humidifier is provided with a spraying device, and generally a submersible pump is used to pump water to the spraying device. When the pipeline from the submersible pump to the spraying device is short and the number of turns of the pipeline is small, after the submersible pump stops working and then works again, normal water pumping can generally be carried out. However, when the pipeline from the submersible pump to the spraying device is long and the number of turns of the pipeline is large, after the submersible pump stops working and then works again, the phenomenon of air entrapment is likely to occur, resulting in the submersible pump being unable to pump water normally and having poor reliability. Utility Model Content

[0003] The present disclosure provides a submersible pump assembly, aiming to solve at least one of the technical problems in the related art to a certain extent.

[0004] The submersible pump assembly of the present disclosure includes a submersible pump, a connector, a water outlet pipe, and an air inlet pipe. The submersible pump is provided with a water inlet and a water outlet; the connector has a first port, a second port, and a third port, and the first port is connected to the water outlet; the water outlet pipe is connected to the second port, and the air inlet pipe is connected to the third port.

[0005] Optionally, the submersible pump assembly further includes a communicating pipe, and both ends of the communicating pipe are respectively connected to the water outlet and the first port.

[0006] Optionally, the communicating pipe is a straight pipe, and the extending direction of at least one section of the water outlet pipe intersects with the extending direction of the communicating pipe.

[0007] Optionally, the connector includes a first connection section, the first port is arranged on the first connection section, the communicating pipe is a connecting hose, and the communicating pipe is sleeved on the first connection section.

[0008] Optionally, the length of the air inlet pipe is less than the length of the water outlet pipe.

[0009] Optionally, the air inlet pipe is a straight pipe.

[0010] Optionally, the connector includes a second connection section, the second port is arranged on the second connection section, the water outlet pipe is a connecting hose, and the water outlet pipe is sleeved on the second connection section.

[0011] Optionally, the connector includes a third connection section, the third port is arranged on the third connection section, the air inlet pipe is a connecting hose, and the air inlet pipe is sleeved on the third connection section.

[0012] Optionally, an air inlet nozzle is further included, and the air inlet nozzle is connected to one end of the air inlet pipe away from the third port.

[0013] Optionally, the air inlet pipe is a connecting hose, and the air inlet pipe is sleeved on the air inlet nozzle.

[0014] The present disclosure also provides an electrical appliance.

[0015] The electrical appliance of the present disclosure includes the submersible pump assembly described in any one of the above.

[0016] Optionally, the electrical appliance is a humidifier, the electrical appliance includes a water tank, and the submersible pump is arranged inside the water tank.

[0017] Optionally, the water tank is provided with a high water level line, and one end of the air inlet pipe away from the third port is arranged inside the water tank and above the high water level line.

[0018] When the submersible pump assembly of the present disclosure is working, driven by the impeller in the submersible pump, water enters from the water inlet of the submersible pump and flows out from the water outlet through the water outlet pipe, realizing the pumping function; after the submersible pump stops working, the water in the water outlet pipe flows back into the interior of the submersible pump along the water outlet pipe. When the submersible pump assembly works again, even if there is a water column in the water outlet pipe, the gas in the external environment can enter through the air inlet pipe and the third port. The gas entering through the third port can not only enter the water outlet pipe through the second port, but also enter the submersible pump through the first port, so that the gas pressure in the water outlet pipe and the submersible pump is equal to the atmospheric pressure, which will not affect the contact between the impeller of the submersible pump and the water, thus enabling the submersible pump to pump water normally and improving the reliability of the submersible pump assembly. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a submersible pump assembly according to an embodiment of the present disclosure.

[0020] Figure 2 is an exploded structural diagram of a submersible pump assembly according to an embodiment of the present disclosure.

[0021] Figure 3 is a partial structural diagram of a humidifier according to an embodiment of the present disclosure.

[0022] Figure 4 is a partial exploded structural diagram of a humidifier according to an embodiment of the present disclosure.

[0023] Reference Numerals:

[0024] 10. Submersible pump assembly;

[0025] 1. Submersible pump; 11. Water inlet; 12. Water outlet;

[0026] 2. Connector; 21. First connection segment; 211. First port; 22. Second connection segment; 221. Second port; 23. Third connection segment; 231. Third port;

[0027] 3. Outlet pipe;

[0028] 4. Inlet pipe;

[0029] 5. Connecting pipe;

[0030] 6. Air inlet nozzle;

[0031] 20. Water tank; 201. Upper shell of water tank; 202. Lower shell of water tank; 203. Water tank cover; 204. Water tank bracket;

[0032] 30. Water supply pipeline. Detailed implementation manners

[0033] The embodiments of the present disclosure will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation to the present disclosure.

[0034] When the submersible pump works, it is placed in the water tank. In the related art, after the submersible pump stops working, a water column is likely to be generated in the outlet pipe connected to the submersible pump, especially at the bend of the outlet pipe. A closed chamber is formed between the water column and the water in the water tank, and the gas pressure in the closed chamber is higher than the atmospheric pressure. When the submersible pump works again, especially when the liquid level in the water tank is low, the impeller of the submersible pump cannot contact the water in the water tank because the water pressure in the water tank cannot overcome the gas pressure in the closed chamber, resulting in the submersible pump idling and unable to pump water normally.

[0035] As Figure 1 and Figure 2 shown, the submersible pump assembly 10 of the embodiment of the present disclosure includes a submersible pump 1, a connector 2, an outlet pipe 3 and an inlet pipe 4. The submersible pump 1 is provided with a water inlet 11 and a water outlet 12. The connector 2 has a first port 211, a second port 221 and a third port 231. The first port 211 is connected to the water outlet 12. The outlet pipe 3 is connected to the second port 221, and the inlet pipe 4 is connected to the third port 231.

[0036] When the submersible pump assembly 10 according to an embodiment of the present disclosure is working, driven by the impeller in the submersible pump 1, water enters from the water inlet 11 of the submersible pump 1 and flows out from the water outlet pipe 3 through the water outlet 12, realizing the water pumping function; after the submersible pump 1 stops working, the water in the water outlet pipe 3 flows back into the interior of the submersible pump 1 along the water outlet pipe 3. When the submersible pump assembly 10 works again, even if there is a water column in the water outlet pipe 3, the gas in the external environment can enter through the air inlet pipe 4 and the third port 231. The gas entering through the third port 231 can not only enter the water outlet pipe 3 through the second port 221, but also enter the submersible pump 1 through the first port 211, so that the gas pressure in both the water outlet pipe 3 and the submersible pump 1 is equal to the atmospheric pressure, which will not affect the contact between the impeller of the submersible pump 1 and water, thereby enabling the submersible pump 1 to pump water normally and improving the reliability of the submersible pump assembly 10. Among them, the gas pressure in both the water outlet pipe 3 and the submersible pump 1 being equal to the atmospheric pressure includes the case where the gas pressure in the water outlet pipe 3 and the submersible pump 1 is approximately equal to the atmospheric pressure.

[0037] Optionally, as Figure 1 and Figure 2 shown, the length of the air inlet pipe 4 is less than the length of the water outlet pipe 3.

[0038] It can be understood that the longer the pipeline connected to the submersible pump 1, the easier it is to generate a water column after the submersible pump 1 stops working; on the contrary, the shorter the pipeline connected to the submersible pump 1, the less likely it is to generate a water column after the submersible pump 1 stops working.

[0039] By setting the length of the air inlet pipe 4 to be less than the length of the water outlet pipe 3, it is less likely to generate a water column in the air inlet pipe 4 after the submersible pump 1 stops working, so that the gas in the external environment can also enter the water outlet pipe 3 and the submersible pump 1 through the air inlet pipe 4, avoiding affecting the contact between the impeller of the submersible pump 1 and water, thereby enabling the submersible pump 1 to pump water normally. Thus, the reliability of the submersible pump assembly 10 is improved.

[0040] Optionally, as Figure 1 and Figure 2 shown, the air inlet pipe 4 is a straight pipe.

[0041] It can be understood that at the bent part of the pipeline connected to the submersible pump 1, it is easier to generate a water column after the submersible pump 1 stops working.

[0042] By setting the air inlet pipe 4 as a straight pipe, it is not easy to generate a water column in the air inlet pipe 4 after the submersible pump 1 stops working, so that the gas in the external environment can also enter the water outlet pipe 3 and the submersible pump 1 through the air inlet pipe 4, avoiding affecting the contact between the impeller of the submersible pump 1 and water, thereby enabling the submersible pump 1 to pump water normally. Thus, the reliability of the submersible pump assembly 10 is improved.

[0043] In some embodiments, as Figure 1 andFigure 2 As shown, the submersible pump assembly 10 further includes a connecting pipe 5, and both ends of the connecting pipe 5 are respectively connected to the water outlet 12 and the first port 211.

[0044] By providing the connecting pipe 5, it is convenient to realize the connection between the water outlet 12 and the first port 211, which is beneficial to improving the assembly efficiency of the submersible pump assembly 10 and reducing the assembly cost of the submersible pump assembly 10.

[0045] Optionally, as Figure 1 and Figure 2 shown, the connecting pipe 5 is a straight pipe, and the extending direction of at least one section of the water outlet pipe 3 intersects with the extending direction of the connecting pipe 5.

[0046] For example, the water outlet pipe 3 is a straight pipe, and the entire extending direction of the water outlet pipe 3 intersects with the extending direction of the connecting pipe 5. Or, the water outlet pipe 3 is a bent pipe with at least one bending angle, and at least one section of the water outlet pipe 3 intersects with the extending direction of the connecting pipe 5.

[0047] The extending direction of at least one section of the water outlet pipe 3 intersects with the extending direction of the connecting pipe 5, so that the water outlet pipe 3 can be set as a straight pipe or a bent pipe according to needs, so as to connect the water outlet pipe 3 with other water-using devices.

[0048] Optionally, as Figure 2 shown, the connector 2 includes a first connection section 21, and the first port 211 is provided on the first connection section 21. The connecting pipe 5 is a connecting hose, and the connecting pipe 5 is sleeved on the first connection section 21. Among them, the connecting pipe 5 and the first connection section 21 can be in interference fit.

[0049] By setting the connecting pipe 5 as a connecting hose, the connecting pipe 5 can be directly sleeved on the first connection section 21 to realize the connection between the connecting pipe 5 and the connector 2. Thus, it is convenient to connect and fix the connecting pipe 5 and the connector 2, which is beneficial to improving the assembly efficiency of the submersible pump assembly 10 and reducing the assembly cost of the submersible pump assembly 10.

[0050] Optionally, as Figure 2 shown, the connector 2 includes a second connection section 22, and the second port 221 is provided on the second connection section 22. The water outlet pipe 3 is a connecting hose, and the water outlet pipe 3 is sleeved on the second connection section 22. Among them, the water outlet pipe 3 and the second connection section 22 can be in interference fit.

[0051] By setting the water outlet pipe 3 as a connecting hose, the water outlet pipe 3 can be directly sleeved on the first connection section 21 to realize the connection between the water outlet pipe 3 and the connector 2. Thus, it is convenient to connect and fix the water outlet pipe 3 and the connector 2, which is beneficial to improving the assembly efficiency of the submersible pump assembly 10 and reducing the assembly cost of the submersible pump assembly 10.

[0052] Optionally, as Figure 2As shown, the connector 2 includes a third connecting section 23, and a third port 231 is provided on the third connecting section 23. The intake pipe 4 is a connecting hose, and the intake pipe 4 is sleeved on the third connecting section 23. Among them, the intake pipe 4 and the third connecting section 23 can be in interference fit.

[0053] By setting the intake pipe 4 as a connecting hose, the intake pipe 4 can be directly sleeved on the first connecting section 21, realizing the connection between the intake pipe 4 and the connector 2. Thus, it is convenient to connect and fix the intake pipe 4 and the connector 2, which is beneficial to improving the assembly efficiency of the submersible pump assembly 10 and reducing the assembly cost of the submersible pump assembly 10.

[0054] Optionally, as Figure 1 and Figure 2 shown, the submersible pump assembly 10 further includes an air inlet nozzle 6, and the air inlet nozzle 6 is connected to one end of the intake pipe 4 away from the third port 231.

[0055] It can be understood that under the drive of the impeller in the submersible pump 1, after the water enters from the water inlet 11 of the submersible pump 1, a part of the water will flow out from the intake pipe 4 through the third port 231, resulting in water loss.

[0056] By connecting the air inlet nozzle 6 to the intake pipe 4, the aperture of the air inlet nozzle 6 can be set smaller, thereby reducing the amount of water flowing out from the air inlet nozzle 6 and improving the reliability of the submersible pump assembly 10.

[0057] Optionally, the intake pipe 4 is a connecting hose, and the intake pipe 4 is sleeved on the air inlet nozzle 6. Among them, the intake pipe 4 and the air inlet nozzle 6 can be in interference fit.

[0058] By setting the intake pipe 4 as a connecting hose, the intake pipe 4 can be directly sleeved on the first connecting section 21, realizing the connection between the intake pipe 4 and the air inlet nozzle 6. Thus, it is convenient to connect and fix the intake pipe 4 and the air inlet nozzle 6, which is beneficial to improving the assembly efficiency of the submersible pump assembly 10 and reducing the assembly cost of the submersible pump assembly 10.

[0059] As Figure 3 and Figure 4 shown, the electrical appliance of the embodiment of the present disclosure includes the submersible pump assembly 10 described in any one of the above embodiments.

[0060] The reliability of the submersible pump assembly 10 of the embodiment of the present disclosure is relatively good. Therefore, the electrical appliance of the embodiment of the present disclosure has advantages such as good reliability.

[0061] In some embodiments, the electrical appliance is a humidifier, and the electrical appliance includes a water tank 20, and the submersible pump 1 is arranged in the water tank 20.

[0062] During specific use, the water in the water tank 20 enters from the water inlet 11 of the submersible pump 1 and finally flows out through the water outlet pipe 3 to the spraying device of the humidifier.

[0063] Optionally, the water tank 20 is provided with a high water level line. One end of the air inlet pipe 4 away from the third port 231 is arranged inside the water tank and above the high water level line. The high water level line refers to the height reached by the water level when the water tank 20 is filled with water.

[0064] Driven by the impeller in the submersible pump 1, after water enters from the water inlet 11 of the submersible pump 1, a part of the water will flow out from the air inlet pipe 4 through the third port 231 and can directly drip into the water tank 20, avoiding waste of water.

[0065] As Figure 3 and Figure 4 As shown, the water tank 20 includes a water tank upper shell 201, a water tank lower shell 202, a water tank cover 203 and a water tank bracket 204. The water tank upper shell 201 is connected to the water tank lower shell 202 and encloses a containing cavity with an opening for holding water. The water tank bracket 204 is arranged inside the containing cavity and connected to the water tank lower shell 202. The water tank cover 203 is connected to the water tank upper shell 201 and seals the above-mentioned opening. Among them, the connector 2, the water outlet pipe 3 and the air inlet pipe 4 are all connected to the water tank bracket 204.

[0066] As Figure 3 and Figure 4 As shown, the humidifier further includes a water supply pipeline 30. The water outlet pipe 3 is connected to the water supply pipeline 30, and the water supply pipeline 30 is connected to the spraying device.

[0067] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present disclosure. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present disclosure.

Claims

1. A submersible pump assembly, characterized in that, Comprising: A submersible pump, the submersible pump being provided with a water inlet and a water outlet; A connector, the connector having a first port, a second port and a third port, the first port being connected to the water outlet; A water outlet pipe and an air inlet pipe, the water outlet pipe being connected to the second port, and the air inlet pipe being connected to the third port.

2. The submersible pump assembly according to claim 1, characterized in that, The submersible pump assembly further comprises a communicating pipe, two ends of the communicating pipe being respectively connected to the water outlet and the first port.

3. The submersible pump assembly according to claim 2, wherein, The communicating pipe is a straight pipe, and at least a section of the water outlet pipe extends in a direction intersecting with the extending direction of the communicating pipe.

4. The submersible pump assembly according to claim 2, characterized in that, The connector includes a first connection section, the first port being provided on the first connection section, the communicating pipe being a connecting hose, and the communicating pipe being sleeved on the first connection section.

5. The submersible pump assembly according to claim 1, wherein, The length of the air inlet pipe is less than the length of the water outlet pipe.

6. The submersible pump assembly according to claim 1, characterized in that, The air inlet pipe is a straight pipe.

7. The submersible pump assembly according to claim 1, wherein The connector includes a second connection section, the second port being provided on the second connection section, the water outlet pipe being a connecting hose, and the water outlet pipe being sleeved on the second connection section.

8. The submersible pump assembly according to claim 1, characterized in that, The connector includes a third connection section, the third port being provided on the third connection section, the air inlet pipe being a connecting hose, and the air inlet pipe being sleeved on the third connection section.

9. The submersible pump assembly according to claim 1, characterized in that, It further includes an air inlet nozzle, the air inlet nozzle being connected to one end of the air inlet pipe far from the third port.

10. The submersible pump assembly according to claim 9, characterized in that, The air inlet pipe is a connecting hose, and the air inlet pipe is sleeved on the air inlet nozzle.

11. An electrical appliance, characterized in that, Comprising the submersible pump assembly according to any one of claims 1-10.

12. The electrical appliance according to claim 11, characterized in that, The electrical appliance is a humidifier, the electrical appliance including a water tank, and the submersible pump being provided in the water tank.

13. The electrical appliance according to claim 12, characterized in that, The water tank is provided with a high water level line, one end of the air inlet pipe far from the third port being provided in the water tank and located above the high water level line.

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