Water pump, pump bonnet and air conditioner

Abstract

A water pump (100), a pump bonnet (12) and an air conditioner. The water pump (100) comprises a pump housing (10), an impeller (20), a driving member (30) and a flow guide member (40), wherein the pump housing (10) has a pump cavity, and a water suction port and a water discharge port which are in communication with the pump cavity; the impeller (20) is arranged in the pump cavity; the driving member (30) is in transmission connection with the impeller (20); and the flow guide member (40) is arranged in the water suction port. The addition of the flow guide member in the water suction port can effectively alleviate and break a vortex, thus making a water flow in a pump bonnet more stable, reducing air-liquid mixing noises, facilitating an improvement in the sound quality of an air conditioner, and also effectively improving the overall vibration of a drainage pump and improving the reliability of the drainage pump.

Description

Water pump, pump cover and air conditioner

[0001] Cross Reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 202411253277.5, filed on September 6, 2024, and entitled “Water pump, pump cover and air conditioner”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of pumps, in particular to a water pump, a pump cover and an air conditioner. BACKGROUND

[0004] The drain pump is one of the main noise sources of the indoor unit of an air conditioner, and the size of the noise thereof seriously affects the sound quality of the air conditioner. When the self-priming water pump is in a small flow / semi-priming state, the water inlet is insufficient, a low-pressure area appears in the water suction channel, and the resistance in the middle of the water channel is large, which can cause vortex and reduce the self-priming capacity of the water pump.

[0005] SUMMARY

[0006] One object of the present application is to provide a water pump, a pump cover and an air conditioner.

[0007] The water pump according to the embodiments of the present application comprises: a pump shell having a pump cavity, a water suction port and a water discharge port communicating with the pump cavity; an impeller arranged in the pump cavity; a driving member in transmission connection with the impeller; and a flow guide member arranged in the water suction port.

[0008] The water pump according to the embodiments of the present application is provided with a flow guide member in the water suction port, which can guide water into the water pump, reduce vortex and improve the suction capacity of the water pump. The discontinuous water suction noise of the drain pump to the condensate water can be effectively reduced.

[0009] In addition, the water pump according to the above embodiments of the present application can also have the following additional technical features:

[0010] In some embodiments, the flow guide member divides at least two flow channels in the water suction port.

[0011] In some embodiments, the flow guide member comprises at least one flow guide branch, which is arranged in the water suction port and connected to the peripheral wall of the water suction port.

[0012] In some embodiments, the two ends of the flow guide branch are connected to the peripheral wall of the water suction port, and the middle part is separated from the peripheral wall of the water suction port.

[0013] In some embodiments, the at least one flow guide branch includes a first flow guide branch and a second flow guide branch, and the first flow guide branch and the second flow guide branch are cross-connected, spaced, end-connected or parallel to each other.

[0014] In some embodiments, one end of the flow guide branch is connected to the peripheral wall of the flow guide branch, and the middle part and the other end are spaced from the peripheral wall of the water inlet.

[0015] In some embodiments, the at least one flow guide branch includes a third flow guide branch and a fourth flow guide branch, and the other end of the third flow guide branch is connected to the other end of the fourth flow guide branch, and the third flow guide branch and the fourth flow guide branch are distributed along the circumference of the water inlet.

[0016] In some embodiments, at least a part of the flow guide branch is linearly extended, arcuately extended or spirally extended in a direction perpendicular to the axis of the water inlet; and / or, at least a part of the flow guide branch is extended in a direction parallel to the axis of the water inlet or in a direction inclined to the axis by a predetermined angle.

[0017] In some embodiments, the flow guide has a first part, a second part and a connecting part, the first part is arranged at the axis of the water inlet, the second part is arranged at the peripheral wall of the water inlet, and the connecting part is connected between the first part and the second part.

[0018] In some embodiments, the connecting part is arranged to extend in a radial direction of the water inlet; or, the connecting part is arranged to spirally extend in a direction around the axis of the water inlet, and the spiral direction of the connecting part is the same as or opposite to the rotation direction of the impeller.

[0019] In some embodiments, the flow guide is an integral structure with the pump shell; or, the flow guide is a separate structure from the pump shell; or, the flow guide is arranged at the end of the water inlet away from the pump cavity; or, the water pump is a self-priming water pump.

[0020] In some embodiments, the pump shell includes a pump body and a pump cover, the pump cover is connected to the pump body, the pump cavity is arranged between the pump body and the pump cover, and at least one of the water inlet and the water outlet is arranged in the pump cover.

[0021] According to the pump cover of the embodiments of the present application, the pump cover is used for the water pump described above, and the pump cover is provided with a water inlet, and the water inlet is provided with a flow guide.

[0022] According to the air conditioner of the embodiments of the present application, the air conditioner includes a water pan and the water pump described above, and the water inlet is communicated with the water pan; or, the air conditioner includes a water pan and the pump cover described above, and the water inlet is communicated with the water pan. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a schematic view of a water pump according to an embodiment of the present application.

[0024] Fig. 2 is a sectional view of a water pump according to an embodiment of the present application.

[0025] Fig. 3 is a schematic view of a pump cover according to an embodiment of the present application.

[0026] Fig. 4 is a sectional view of a pump cover according to another embodiment of the present application.

[0027] Fig. 5 is a schematic view of a pump cover according to still another embodiment of the present application.

[0028] Fig. 6 is a sectional view of a pump cover according to still another embodiment of the present application.

[0029] Fig. 7 is a sectional view of a pump cover according to still another embodiment of the present application.

[0030] Reference signs: water pump 100, pump housing 10, pump body 11, pump cover 12, cylinder portion 13, impeller 20, driving member 30, flow guide member 40, flow passage 401, first flow guide branch 41, second flow guide branch 42, third flow guide branch 43, fourth flow guide branch 44. DETAILED DESCRIPTION

[0031] When the self-priming water pump is in a small flow / semi-priming state, the water inlet is insufficient, a low-pressure area appears in the water suction passage, and the resistance in the middle of the water passage is large, which can cause vortex, reduce the self-priming capacity of the water pump, and cause the water level in the pump cover to fluctuate up and down. The fluctuation process can introduce air to cause intermittent gas-liquid mixed noise. The discontinuous water suction noise can easily cause people to be uncomfortable and plays a decisive role in sound quality. The present application proposes a drainage pump structure for reducing the noise of an air conditioner indoor unit. The flow guide member added at the water suction port can effectively improve / eliminate vortex, make the water flow in the pump cover more stable, improve the gas-liquid mixed noise, be conducive to improving the sound quality of the air conditioner, and effectively improve the overall vibration of the drainage pump and improve the reliability of the drainage pump.

[0032] Embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] As shown in Figures 1 to 7, the water pump 100 according to an embodiment of this application includes: a pump casing 10, an impeller 20, and a drive unit 30. The pump casing 10 has a pump chamber and a suction port and a discharge port communicating with the pump chamber. The impeller 20 is disposed in the pump chamber and can rotate to drive fluid to flow from the suction port to the discharge port. The suction force generated by the impeller 20 at the suction port will cause water at the suction port to be drawn into the pump chamber and can discharge the water in the pump chamber through the discharge port. The drive unit 30 is driven to the impeller 20, and can drive the impeller 20 to rotate to drive the fluid.

[0034] The water pump 100 also includes a flow guide 40, which can be configured to guide the fluid entering the pump chamber from the suction port to reduce or avoid vortices in the fluid at the suction port, thereby improving the suction capacity of the water pump 100. The flow guide 40 can be located inside the suction port.

[0035] According to the embodiments of this application, the water pump 100 is mainly composed of a guide member 40, a pump casing 10, an impeller 20, a motor, etc. The pump casing 10 is provided with a water inlet and a water outlet. By adding a guide member 40 inside the water inlet, the insufficient water volume at the water inlet can effectively reduce the discontinuous water suction sound caused by insufficient liquid in the drain pump 100.

[0036] Specifically, the impeller 20 rotates within the pump chamber to generate negative pressure, drawing water from the suction port into the pump chamber. Driven by the impeller 20, the fluid enters the pump chamber in a spiral manner. During the suction process, the pump 100 exhibits both axial and circumferential movement at the suction port, resulting in a portion of the power applied by the pump 100 to the water being consumed by the vortex motion of the water. When the water volume at the suction port is insufficient, the water seal formed at the suction port weakens, leading to a decrease in suction force. The vortex motion of the water further depletes the already insufficient suction force, resulting in even weaker suction from the pump 100. This not only makes it difficult to draw water from the suction port into the pump chamber, but also causes water to flow back under gravity after entering the suction port, resulting in repeated entry and exit of water from the suction port and generating noise.

[0037] The suction port in this application can extend along the axis of the pump cavity and is directly connected to the pump cavity, while the discharge port can be located on the peripheral wall of the pump cavity.

[0038] In this application, by setting the guide member 40, the vortex motion of the fluid at the suction port can be restricted, reducing the power loss due to vortex motion. This allows the water pump 100 to have more energy for water suction, increasing the suction force of the water pump 100, thereby improving the energy efficiency of the water pump 100 and reducing noise. Adding the guide member 40 in this application can effectively improve / break vortices, making the water flow inside the pump casing 10 more stable and reducing gas-liquid mixing noise.

[0039] As shown in FIG. 3 to FIG. 7, in some embodiments of the present application, the flow guide 40 divides the water suction port into at least two flow channels 401. The water at the water suction port will enter the pump cavity through the at least two flow channels 401, and the suction force generated by the rotation of the impeller 20 acts on different flow channels 401 respectively, which can effectively improve the suction force of the water at the water suction port. In addition, since the water flow is divided into multiple streams, the vortex of the water flow can be reduced or avoided, the flow guiding effect of the flow guide 40 on the water can be improved, and the discontinuous suction noise of the water pump 100 can be reduced.

[0040] The flow guide 40 can include at least one flow guide branch, which is arranged in the water suction port and connected to the peripheral wall of the water suction port. The flow guide branch can be used to guide the fluid to enter the pump cavity along the axis direction (refer to the up-down direction in the drawings) of the water suction port, and can also limit the vortex of the water along the periphery of the water suction port, so as to promote the suction force at the water suction port and avoid energy loss caused by vortex, effectively improve the performance of the water pump 100 and reduce noise.

[0041] The number of flow guide branches in the present application can be one or more, and the arrangement mode between the flow guide branches can be parallel or intersecting. Meanwhile, the flow guide branch can be parallel to the water suction channel or have an inclination angle with the water suction channel. The above various modes can improve the discontinuous suction noise. The setting form of the flow guide branch can include but is not limited to the following embodiments.

[0042] Embodiment one

[0043] As shown in FIG. 3 to FIG. 5, the two ends of the flow guide branch are connected to the peripheral wall of the water suction port, and the middle part of the flow guide branch is separated from the peripheral wall of the water suction port, so as to form flow channels 401 on both sides of the flow guide branch. The flow guide branch can pass through the axis of the water suction port, or the flow guide branch can be offset from the axis of the water suction port.

[0044] As shown in FIG. 3, the flow guide branch can extend in a straight line direction perpendicular to the axis of the water suction port, and the flow guide branch can pass through the axis of the water suction port, so as to divide the water suction port into two flow channels 401 with the same size. The flow guide branch can also be offset from the axis of the water suction port, so as to divide the water suction port into two flow channels 401 with different sizes. As shown in FIG. 4, in addition, the flow guide branch can also extend in an arc direction perpendicular to the axis of the water suction port. The flow guide branch can pass through the axis of the water suction port, so as to divide the water suction port into two flow channels 401 which are rotationally symmetrical with respect to the axis of the water suction port. In addition, the flow guide branch can also be offset from the axis of the water suction port. As shown in FIG. 5, the flow guide branch can also extend in a spiral direction perpendicular to the axis of the water suction port, and the flow guide branch can be a twisted strip.

[0045] At least one of the flow guide branches can be arranged to extend in a direction parallel to the axis of the water inlet in the axial direction of the water inlet. Alternatively, at least one of the flow guide branches can be arranged to extend in a direction inclined at a predetermined angle with respect to the axis of the water inlet in the axial direction of the water inlet.

[0046] With the above arrangement, water can be introduced from the plurality of flow channels 401 into the pump housing 10, respectively, so that the generation of vortexes can be avoided, the suction force of the water inlet of the water pump 100 can be improved, the water pumping capacity of the water pump 100 can be improved, and the noise during the operation of the water pump 100 can be reduced. Alternatively, the flow guide 40 can include a plurality of flow guide branches, and the plurality of flow guide branches can have the same or different structural shapes.

[0047] Embodiment II

[0048] The at least one flow guide branch includes a first flow guide branch 41 and a second flow guide branch 42.

[0049] The first flow guide branch 41 can be arranged to have two ends connected to the peripheral wall of the water inlet and a middle part spaced from the peripheral wall of the water inlet. Alternatively, the first flow guide branch 41 can be arranged to have one end connected to the peripheral wall of the flow guide branch and the other end and the middle part spaced from the peripheral wall of the water inlet. Alternatively, the first flow guide branch 41 can be arranged to have two ends connected to other flow guide branches. Alternatively, the second flow guide branch 42 can be arranged to have two ends connected to the peripheral wall of the water inlet and a middle part spaced from the peripheral wall of the water inlet. Alternatively, the second flow guide branch 42 can be arranged to have one end connected to the peripheral wall of the flow guide branch and the other end and the middle part spaced from the peripheral wall of the water inlet. Alternatively, the second flow guide branch 42 can be arranged to have two ends connected to other flow guide branches.

[0050] The first flow guide branch 41 and the second flow guide branch 42 can be arranged to be cross-connected. For example, as shown in FIG. 6, the two ends of the first flow guide branch 41 are connected to opposite sides of the peripheral wall of the water inlet, the two ends of the second flow guide branch 42 are connected to opposite sides of the peripheral wall of the water inlet, and the first flow guide branch 41 and the second flow guide branch 42 are cross-connected and perpendicular to each other. Alternatively, the two ends of the first flow guide branch 41 can be connected to opposite sides of the peripheral wall of the water inlet, one end of the second flow guide branch 42 can be connected to the middle part of the first flow guide branch 41, and the other end of the second flow guide branch 42 can be connected to the peripheral wall of the water inlet, and the first flow guide branch 41 and the second flow guide branch 42 can be cross-connected.

[0051] The first flow guide branch 41 and the second flow guide branch 42 can be arranged to be end-connected. For example, one end of the first flow guide branch 41 can be connected to one end of the second flow guide branch 42, and the other end of the first flow guide branch 41 can be spaced from the other end of the second flow guide branch 42. Alternatively, the two ends of the first flow guide branch 41 can be connected to the two ends of the second flow guide branch 42, respectively.

[0052] The first flow guide branch 41 and the second flow guide branch 42 can also be arranged in a spaced-apart manner or in parallel to each other.

[0053] At least a portion of the first flow guide branch 41 can be arranged to extend in a straight line, extend in an arc or extend in a spiral in a direction perpendicular to the axis of the water inlet. At least a portion of the first flow guide branch 41 can also be arranged to extend in a direction parallel to the axis of the water inlet or extend in a direction inclined at a predetermined angle with respect to the axis of the water inlet in the axial direction of the water inlet. At least a portion of the second flow guide branch 42 can be arranged to extend in a straight line, extend in an arc or extend in a spiral in a direction perpendicular to the axis of the water inlet. At least a portion of the second flow guide branch 42 can also be arranged to extend in a direction parallel to the axis of the water inlet or extend in a direction inclined at a predetermined angle with respect to the axis of the water inlet in the axial direction of the water inlet.

[0054] In addition, the flow guide 40 in the present application can also include three, four or more flow guide branches.

[0055] Embodiment Three

[0056] The flow guide branch can also be arranged to have one end connected to the peripheral wall of the flow guide branch, and the middle and the other end spaced apart from the peripheral wall of the water inlet, so as to form flow channels 401 on both sides of the flow guide branch. The flow guide branch or the extension of the flow guide branch can be arranged to pass through the axis of the water inlet, or the flow guide branch or the extension of the flow guide branch can also be arranged to deviate from the axis of the water inlet.

[0057] As shown in FIG. 3, the flow guide branch can be arranged to extend in a straight line in a direction perpendicular to the axis of the water inlet. The flow guide branch can be arranged to pass through the axis of the water inlet, so as to divide the water inlet into two flow channels 401 of the same size. The flow guide branch can also be arranged to deviate from the axis of the water inlet, so as to divide the water inlet into two flow channels 401 of different sizes. As shown in FIG. 4, in addition, the flow guide branch can also be arranged to extend in an arc in a direction perpendicular to the axis of the water inlet. The flow guide branch can be arranged to pass through the axis of the water inlet, so as to divide the water inlet into two flow channels 401 which are rotationally symmetrical with respect to the axis of the water inlet. In addition, the flow guide branch can also be arranged to deviate from the axis of the water inlet. As shown in FIG. 5, the flow guide branch can also be arranged to extend in a spiral in a direction perpendicular to the axis of the water inlet. The flow guide branch is arranged in a twisted strip shape.

[0058] At least a portion of the flow guide branch can be arranged to extend in a direction parallel to the axis of the water inlet in the axial direction of the water inlet. In addition, at least a portion of the flow guide branch can also be arranged to extend in a direction inclined at a predetermined angle with respect to the axis of the water inlet in the axial direction of the water inlet.

[0059] Through the above setting form, the water can be respectively introduced from the plurality of flow channels 401 to the pump shell 10, the generation of vortex can be avoided, the suction force of the water suction port of the water pump 100 is improved, the water pumping capacity of the water pump 100 is improved, and the noise during the operation of the water pump 100 is reduced. In addition, the flow guide member 40 in the application can also include a plurality of flow guide branches, and the structure shapes of the plurality of flow guide branches can be the same or different.

[0060] Embodiment four

[0061] As shown in FIG. 7, the at least one flow guide branch includes a third flow guide branch 43 and a fourth flow guide branch 44, one end of the third flow guide branch 43 is connected to the flow guide branch peripheral wall, one end of the fourth flow guide branch 44 is connected to the flow guide branch peripheral wall, the other end of the third flow guide branch 43 and the other end of the fourth flow guide branch 44 are connected, and the third flow guide branch 43 and the fourth flow guide branch 44 are distributed along the circumference of the water suction port.

[0062] At least a part of the third flow guide branch 43 is arranged to extend along a straight line, extend along an arc or extend spirally in a direction perpendicular to the axis of the water suction port; and / or, at least a part of the third flow guide branch 43 is arranged to extend along a direction parallel to the axis or extend along a direction inclined at a predetermined angle with respect to the axis in the axial direction of the water suction port. At least a part of the fourth flow guide branch 44 is arranged to extend along a straight line, extend along an arc or extend spirally in a direction perpendicular to the axis of the water suction port; and / or, at least a part of the fourth flow guide branch 44 is arranged to extend along a direction parallel to the axis or extend along a direction inclined at a predetermined angle with respect to the axis in the axial direction of the water suction port.

[0063] In addition, the flow guide member 40 in the application can also include three, four or more flow guide branches.

[0064] Embodiment five

[0065] As described above, at least a part of the flow guide branch is arranged to extend along a straight line, extend along an arc or extend spirally in a direction perpendicular to the axis of the water suction port; and / or, at least a part of the flow guide branch is arranged to extend along a direction parallel to the axis or extend along a direction inclined at a predetermined angle with respect to the axis in the axial direction of the water suction port. Through these setting forms, the water can be conveniently guided, the suction force at the water suction port is improved, so that the water can more easily enter the pump cavity.

[0066] In some embodiments of the present application, the flow guide 40 has a first portion, a second portion and a connecting portion, the first portion is arranged at the axis of the water suction port, the second portion is arranged at the peripheral wall of the water suction port, and the connecting portion is connected between the first portion and the second portion. The flow guide 40 can be arranged in the form as described above, that is, the water suction port is divided into at least two flow passages 401 by the flow guide 40. Alternatively, the flow guide 40 can be arranged in the form of a cantilever, that is, the flow guide 40 is connected to the peripheral wall of the water suction port in the form of a cantilever. By arranging the flow guide 40 to include the first portion, the second portion and the connecting portion, when the water has a tendency to form a vortex in the water suction port, the vortex movement of the water along the peripheral wall of the water suction port will be blocked by the flow guide 40, so that the vortex can be avoided in the water suction port, the energy waste of the water pump 100 can be avoided, and the energy efficiency and stability can be improved.

[0067] Alternatively, the connecting portion is arranged to extend along the radial direction of the water suction port, or the connecting portion is arranged to extend spirally along the direction around the axis of the water suction port, and the spiral direction of the connecting portion is the same as or opposite to the rotation direction of the impeller 20. Thus, the flow guide effect on the water can be further improved, and the vortex can be further reduced.

[0068] Alternatively, the flow guide 40 and the pump shell 10 are integrated, so that the structural strength and stability of the flow guide 40 can be improved, and the service life of the water pump 100 can be prolonged. Alternatively, the flow guide 40 and the pump shell 10 can also be arranged in a split structure.

[0069] As shown in FIGS. 1 and 2, in some embodiments, the pump shell 10 includes a pump body 11 and a pump cover 12, the pump cover 12 is connected to the pump body 11, the pump cavity is arranged between the pump body 11 and the pump cover 12, and at least one of the water suction port and the water discharge port is arranged in the pump cover 12. By arranging the pump cover 12 and the pump body 11, the installation of the impeller 20 in the pump cavity can be facilitated, and the assembly and maintenance of the water pump 100 can be simplified. Alternatively, the water suction port and the water discharge port can be arranged in the pump cover 12, so that the water can be conveniently driven to pass through the water pump 100, and the energy efficiency and stability of the water pump 100 can be improved.

[0070] Alternatively, the pump shell 10 further includes a barrel portion 13, the barrel portion 13 is connected to the pump cover 12, and at least a part of the barrel portion 13 extends out of the outer surface of the pump cover 12, and the water suction port is arranged in the barrel portion 13. By arranging the barrel portion 13, the water pump 100 can be conveniently used for suction, and the barrel portion 13 can be directly inserted into a structural component to be pumped, so that the water suction of the water pump 100 can be facilitated, and the structural strength and stability of the water pump 100 can be improved.

[0071] In some embodiments, the flow guide 40 is arranged at the end of the water suction port away from the pump cavity. Thus, when the water flows into the water suction port, the vortex movement of the water can be blocked by the flow guide 40, so that the waste of the suction capacity can be further reduced, and the structural stability of the water pump 100 can be effectively improved.

[0072] Optionally, the water pump 100 is a self-priming water pump 100. The self-priming water pump 100 is filled with water in the pump body 11 (or the pump body 11 has water itself) before the water pump 100 is started. After starting, the impeller 20 rotates at high speed to make the water in the groove of the impeller 20 flow to the volute. At this time, the inlet forms a vacuum, the air in the suction port enters the pump cavity, and reaches the drain port through the impeller 20. Through repeated circulation, the air in the suction pipeline is gradually exhausted, and water enters the pump to complete the self-priming process.

[0073] The application provides a self-priming water pump 100. When the water pump 100 is in a half-suction state (at a small flow rate), the water inlet is insufficient, a low-pressure area appears in the water suction channel, and the intermediate resistance in the water channel is large, which can cause vortex, reduce the self-priming capacity of the water pump 100, and cause the water level in the pump cover 12 to fluctuate up and down. The fluctuation process can introduce air to cause intermittent gas-liquid mixed noise. The flow guide piece 40 can effectively improve / break the vortex, make the water flow in the pump cover 12 more stable, and improve the gas-liquid mixed noise.

[0074] As shown in FIGS. 3-7, the pump cover 12 according to the embodiment of the application is used for the foregoing water pump 100, wherein the pump cover 12 is provided with a water suction port, and the water suction port is provided with a flow guide piece 40. The flow guide piece 40 can be provided in the form described in the foregoing embodiments.

[0075] The air conditioner according to the embodiment of the application comprises a water collecting tray and the foregoing water pump 100, and the water suction port is communicated with the water collecting tray; or the air conditioner comprises a water collecting tray and the foregoing pump cover 12, and the water suction port is communicated with the water collecting tray.

[0076] In addition, the terms "first", "second", "third", "fourth" and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0077] In the application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0078] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0079] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A water pump, wherein, The water pump comprises: a pump shell having a pump cavity, a water suction port and a water discharge port communicating with the pump cavity; an impeller arranged in the pump cavity; a driving member in driving connection with the impeller; a flow guide member arranged in the water suction port.

2. The water pump of claim 1, wherein, The flow guide member divides at least two flow channels in the water suction port.

3. The water pump of claim 2, wherein, The flow guide member comprises at least one flow guide branch arranged in the water suction port and connected with the peripheral wall of the water suction port.

4. The water pump of claim 3, wherein, Two ends of the flow guide branch are connected with the peripheral wall of the water suction port, and the middle part is spaced from the peripheral wall of the water suction port.

5. The water pump of claim 3, wherein, The at least one flow guide branch comprises a first flow guide branch and a second flow guide branch, the first flow guide branch and the second flow guide branch are cross-connected, spaced, end-connected or parallel to each other.

6. The water pump of claim 3, wherein, One end of the flow guide branch is connected with the peripheral wall of the flow guide branch, and the middle part and the other end are spaced from the peripheral wall of the water suction port.

7. The water pump of claim 6, wherein, The at least one flow guide branch comprises a third flow guide branch and a fourth flow guide branch, the other end of the third flow guide branch and the other end of the fourth flow guide branch are connected, and the third flow guide branch and the fourth flow guide branch are distributed along the circumferential direction of the water suction port.

8. The water pump of any one of claims 3-5, wherein, At least a part of the flow guide branch extends in a straight line, an arc or a spiral in a direction perpendicular to the axis of the water suction port; and / or at least a part of the flow guide branch extends in a direction parallel to the axis or a direction inclined at a predetermined angle relative to the axis in the axial direction of the water suction port.

9. The water pump of any one of claims 1-5, wherein, The flow guide member has a first part, a second part and a connecting part, the first part is arranged at the axis of the water suction port, the second part is arranged at the peripheral wall of the water suction port, and the connecting part is connected between the first part and the second part.

10. The water pump of claim 9, wherein, The connecting part extends in the radial direction of the water suction port; or the connecting part extends in a spiral direction around the axis of the water suction port, and the spiral direction of the connecting part is the same as or opposite to the rotation direction of the impeller.

11. The water pump of any one of claims 1-10, wherein, The flow guide member and the pump shell are in an integral structure; or the flow guide member and the pump shell are in a split structure; or the flow guide member is arranged at one end of the water suction port away from the pump cavity; or the water pump is a self-priming water pump.

12. The water pump of any one of claims 1-5, wherein, The pump shell comprises a pump body and a pump cover, the pump cover is connected with the pump body, the pump cavity is arranged between the pump body and the pump cover, and at least one of the water suction port and the water discharge port is arranged in the pump cover.

13. A pump cover for use in the water pump of any one of claims 1-12, wherein, The pump cover is provided with a water suction port, and the flow guide member is arranged in the water suction port.

14. An air conditioner, wherein, The water pump comprises a water collecting tray and any one of the water pumps in claims 1-12, and the water suction port communicates with the water collecting tray; or the pump cover comprises a water collecting tray and the pump cover in claim 13, and the water suction port communicates with the water collecting tray.

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