Water pump and humidifier

Abstract

The present invention, relating to the field of water pumps, discloses a water pump and a humidifier, which includes a stator assembly, a rotor assembly, and an end cap; the rotor assembly is connected with an impeller; the end cap at least covers and seals the rotor assembly and the impeller within an accommodating cavity; a side of the end cap facing the impeller is provided with a hooking structure; the hooking structure is configured to hang below the end cap when the impeller is assembled into the accommodating cavity or removed from the accommodating cavity; and after the impeller is assembled into the accommodating cavity, the hooking structure does not contact the impeller. The water pump and the humidifier of the present invention can allow for the impeller to be conveniently removed for cleaning, thereby quickly resolving the issue of the water pump being blocked and not rotating.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present invention claims the priority to the Chinese patent application with the filing No. CN202411081406.7 filed with the Chinese Patent Office on August 8, 2024, and entitled "WATER PUMP AND HUMIDIFIER", the contents of which are incorporated herein by reference in entirety.TECHNICAL FIELD

[0002] The present invention relates to the technical field of humidifier water pumps, and specifically to a water pump and a humidifier using the water pump.BACKGROUND ART

[0003] A mist-free humidifier with a spray-type wet water curtain usually provides a water tank, and the wet curtain is arranged at the upper portion of the water tank. Water in the water tank is pumped to the upper portion of the wet curtain through the water pump, where, by spraying to wet the wet curtain, then cooperating with a fan, dry air is discharged into the air by blowing or sucking through the wet curtain to achieve the objective of humidification.

[0004] After the humidifier is used for some time, scale or accumulated foreign matter easily causes the water pump to become blocked and not rotate.SUMMARY

[0005] The objectives of the present invention include, for example, providing a water pump and a humidifier to solve the problem of the water pump being blocked and not rotating. This allows for the impeller to be removed conveniently for cleaning, thus quickly resolving the problem of the water pump being blocked and not rotating.

[0006] The embodiments of the present invention are implemented as follows.

[0007] An embodiment of the present invention provides a water pump, which includes a stator assembly, a rotor assembly, and an end cap. The rotor assembly is connected with an impeller; the end cap at least covers and seals the rotor assembly and the impeller within an accommodating cavity; a side of the end cap facing the impeller is provided with a hooking structure, wherein the hooking structure is configured to hang below the end cap when the impeller is assembled into the accommodating cavity or removed from the accommodating cavity; and after the impeller is assembled into the accommodating cavity, the hooking structure does not contact the impeller.

[0008] Optionally, the impeller includes an impeller body and a connecting shaft, wherein the impeller body includes a disc body and blades connected to the disc body, and the connecting shaft is connected to the disc body and the rotor assembly at two axial ends, respectively.

[0009] Optionally, the hooking structure includes an arc rib, wherein an inner arc radius of the arc rib is greater than a radius of the connecting shaft and less than a radius of the disc body; both ends of the arc rib extend in a direction away from its arc center to form an extension portion, wherein the extension portion connects to the end cap; and the arc rib can hang the impeller.

[0010] Optionally, the extension portion extends along an edge of the end cap to form an arc-shaped sidewall, wherein an outer side of the arc-shaped sidewall is provided with a snapping structure, and the end cap is detachably connected to the stator assembly through the snapping structure.

[0011] Optionally, the end cap and the stator assembly are connected in a manner of interference fit.

[0012] Optionally, the hooking structure includes at least three convex ribs, wherein the three convex ribs are evenly distributed around the end cap; the convex ribs extend a certain distance from the end cap in an axial direction of the connecting shaft and then bend toward a center of the disc body, wherein an inscribed circle radius of ends of all the convex ribs is greater than the radius of the connecting shaft and less than the radius of the disc body; and the convex ribs can hang the impeller.

[0013] Optionally, the convex ribs are arranged as elastic convex ribs.

[0014] Optionally, the convex rib extends along an edge of the end cap to form an arc-shaped sidewall, wherein an outer side of the arc-shaped sidewall is provided with a snapping structure, and the end cap is detachably connected to the stator assembly through the snapping structure.

[0015] Optionally, the accommodating cavity includes a rotor accommodating cavity and an impeller accommodating cavity; the rotor accommodating cavity is arranged within the stator assembly; a support shaft is arranged at a center of the rotor accommodating cavity; and the impeller accommodating cavity communicates with the rotor accommodating cavity, and the impeller is accommodated within the impeller accommodating cavity, wherein the rotor assembly is provided with a central shaft hole, the rotor assembly is accommodated within the rotor accommodating cavity, and the central shaft hole is sleeved onto the support shaft.

[0016] Optionally, an end of the support shaft protrudes from a cavity bottom of the rotor accommodating cavity and extends into the impeller accommodating cavity.

[0017] Optionally, a boss is arranged on the support shaft, and the rotor assembly is supported by the boss, such that the impeller body avoids the hooking structure along the axial direction of the connecting shaft.

[0018] Optionally, an avoidance groove is provided at a junction of the impeller accommodating cavity and the rotor accommodating cavity on the stator assembly, and the hooking structure is avoided through the avoidance groove during the assembly of the water pump.

[0019] Optionally, the water pump further includes a filter member, wherein the filter member is connected to a side of the end cap facing away from the hooking structure, and the filter member is snapped with the end cap in a rotary manner.

[0020] Further, the embodiment of the disclosure provides a humidifier, which includes the water pump above.

[0021] Optionally, the humidifier further includes a bucket body, and the water pump is arranged below a bottom of the bucket body.

[0022] Optionally, a through hole communicating with an interior of the bucket body is arranged at the bottom of the bucket body; a housing is arranged outside the bucket body; the housing is located at the through hole and is connected with the bucket body in a hermetical manner; and the water pump is arranged inside the housing.

[0023] Optionally, a damping component is filled between the water pump and the housing.

[0024] Optionally, the humidifier further includes a jamming detection module, wherein the jamming detection module is configured to determine whether the water pump is jammed by detecting a current of the water pump.

[0025] Optionally, the humidifier further includes a display module, wherein the display module is connected to the jamming detection module, and when the water pump is jammed, the jamming is shown through the display module.

[0026] The above technical solutions of the present invention include the following beneficial effects compared to the prior art.

[0027] For example, the water pump and the humidifier provided by the embodiment of the present invention include a stator assembly, a rotor assembly, an end cap, and a hooking structure, wherein the rotor assembly is connected with an impeller, the end cap covers and seals the rotor assembly, the impeller, and the hooking structure within an accommodating cavity, and the hooking structure hangs below the end cap. The hooking structure is configured for hooking the impeller when the impeller needs to be removed for cleaning. By simply removing the end cap, the hooking structure can be driven to hook the impeller, thus removing it from the accommodating cavity. Therefore, it allows for the impeller to be removed for cleaning conveniently, and quickly resolves the problem of the water pump being blocked and not rotating.BRIEF DESCRIPTION OF DRAWINGS

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solution in the prior art, the drawings required to be used in the description of the specific embodiment or prior art will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present invention. Those of ordinary skill in the art, without paying inventive labor, may also obtain other drawings according to these drawings. FIG. 1 is a perspective structural schematic diagram of a water pump provided by the embodiment of the present invention; FIG. 2 is an exploded view of the water pump shown in FIG. 1; FIG. 3 is a sectional view of the water pump shown in FIG. 1; FIG. 4 is an assembly schematic diagram of an impeller and a rotor assembly in the water pump shown in FIG. 2; FIG. 5 is a front view of FIG. 4; FIG. 6 is a structural schematic diagram of an end cap connected to a hooking structure in the embodiment of the present invention; FIG. 7 is a schematic structural diagram of another perspective of FIG. 6; FIG. 8 is a structural schematic diagram of a stator assembly in the water pump shown in FIG. 2; FIG. 9 is an assembly schematic diagram of a stator assembly and a rotor assembly in the water pump shown in FIG. 2; FIG. 10 is a perspective structural schematic diagram of a water pump provided by another embodiment of the present invention; FIG. 11 is a sectional view of FIG. 10; FIG. 12 is a structural schematic diagram of an end cap connected to a hooking structure in the embodiment of the present invention; FIG. 13 is a perspective structural schematic diagram of a humidifier provided by the embodiment of the present invention; FIG. 14 is an exploded view of the humidifier shown in FIG. 13; FIG. 15 is a sectional view of the humidifier shown in FIG. 13; and FIG. 16 is a partially enlarged view of A in the humidifier shown in FIG. 15. Reference numerals:

[0029] 100 - water pump; 200 - humidifier; 1 - stator assembly, 11 - avoidance groove, 12 - water outlet; 2 - rotor assembly, 21 - central shaft hole; 3 - end cap, 31 - arc-shaped sidewall, 32 - second snap slot, 33 - slideway, 34 - water inlet; 4 - impeller, 41 - impeller body, 411 - disc body, 412 - blade; 42 - connecting shaft; 5 - hooking structure, 51 - arc rib, 52 - extension portion, 53 - convex rib; 6 - accommodating cavity, 61 - rotor accommodating cavity, 62 - impeller accommodating cavity, 63 - support shaft, 64 - boss; 7 - snapping structure, 71 - snap, 72 - first snap slot; 8 - filter member, 82 - frame, 83 - gripping portion; 9 - bucket body, 91 - through hole; 10 - housing, 101 - sealing ring; 20 - damping component. DETAILED DESCRIPTION OF EMBODIMENTS

[0030] The present invention is further illustrated below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments provided are not intended to limit the present invention.

[0031] An embodiment of the present invention discloses a water pump, which can achieve very convenient removal of the impeller of the water pump for cleaning, thereby quickly resolving the problem of the water pump being blocked and not rotating.

[0032] Referring to FIG. 1, FIG. 2, and FIG. 3, the water pump includes a stator assembly 1, a rotor assembly 2, and an end cap 3, wherein the rotor assembly 2 is connected with an impeller 4. It should be noted that the rotor assembly 2 and the impeller 4 can be of an integrated structure or a split structure. When the impeller 4 and the rotor assembly 2 are of an integrated structure, the rotor assembly 2 is removed together with the impeller 4. When the impeller 4 and the rotor assembly 2 are of a split structure, the impeller 4 is removed separately.

[0033] A water inlet 34 is arranged at the center of the end cap 3, and a water outlet 12 is arranged on one side of the stator assembly 1. In an optional embodiment of the present invention, the end cap 3 is detachably connected with the stator assembly 1. After the end cap 3 is connected with the stator assembly 1, an accommodating cavity 6 is formed inside them, and the stator assembly 1, the rotor assembly 2, and the impeller 4 are accommodated within the accommodating cavity 6 to form the water pump. In another embodiment, the end cap 3 can also be connected with other components so that the interior capped by the end cap 3 forms the accommodating cavity 6. For example, when the water pump is applied in a humidifier, the end cap 3 can also be connected with the housing of the humidifier to form the accommodating cavity 6.

[0034] Optionally, a side of the end cap 3 facing the impeller 4 is provided with a hooking structure 5, wherein the hooking structure 5 is configured to hang below the end cap 3 when the impeller 4 is assembled into the accommodating cavity 6 or removed from the accommodating cavity 6; and after the impeller 4 is assembled into the accommodating cavity 6, the hooking structure 5 does not contact the impeller 4.

[0035] The water pump in the embodiment of the present invention includes a stator assembly 1, a rotor assembly 2, an end cap 3, and a hooking structure 5. The rotor assembly 2 is connected with an impeller 4, and the end cap 3 covers and seals the rotor assembly 2, the impeller 4, and the hooking structure 5 within an accommodating cavity 6, and the accommodating cavity 6 is formed when the end cap 3 is arranged. In a preferred embodiment, the end cap 3 is detachably connected to the stator assembly 1. When the end cap 3 is connected to the stator assembly 1, a sealed accommodating cavity 6 is formed inside them, and the rotor assembly 2, the impeller 4, and the hooking structure 5 are sealed and capped within the accommodating cavity 6. When the end cap 3 is disconnected from the stator assembly 1, for example, by removing the end cap 3 from the stator assembly 1, the end cap 3 drives the hooking structure 5 to hook the impeller 4 and remove it from the accommodating cavity 6.

[0036] Specifically, in the embodiment of the present invention, the position and structure of the hooking structure 5 are associated with the end cap 3 and have at least the following three states: state 1, when the impeller 4 is assembled into the accommodating cavity 6, the hooking structure 5 hangs below the end cap 3; state 2, after the impeller 4 is assembled into the accommodating cavity 6, the hooking structure 5 hangs below the end cap 3 and does not contact the impeller 4, thereby not interfering with the normal rotation of the impeller 4; and state 3, when the impeller 4 is detached from the accommodating cavity 6, the hooking structure 5 hangs below the end cap 3, and when the end cap 3 is removed, the hooking structure hooks the impeller 4 located below it, and the impeller 4 is removed from the accommodating cavity 6 along with the removal of the end cap 3.

[0037] The hooking structure 5 hangs below the end cap 3. The hooking structure 5 is configured for hooking the impeller 4 when the impeller 4 needs to be removed for cleaning. By simply removing the end cap 3, the hooking structure 5 can be driven to hook the impeller 4, thus removing it from the accommodating cavity 6, which is very ingenious and easy to use without any tools. Therefore, it allows for the impeller 4 to be removed for cleaning conveniently, and quickly resolves the problem of the water pump being blocked and not rotating.

[0038] With reference to FIG. 4 and FIG. 5, the impeller 4 includes an impeller body 41 and a connecting shaft 42, wherein the impeller body 41 includes a disc body 411 and blades 412 connected to the disc body 411. Optionally, the connecting shaft 42 is connected to the disc body 411 and the rotor assembly 2 at two axial ends, respectively. Optionally, referring to FIG. 6, the hooking structure 5 includes an arc rib 51, wherein an inner arc radius of the arc rib 51 is greater than a radius of the connecting shaft 42, and the inner arc radius of the arc rib 51 is less than a radius of the disc body 411. Both ends of the arc rib 51 extend in a direction away from its arc center to form an extension portion 52, wherein the extension portion 52 connects to the end cap 3, and the arc rib 51 can hang the impeller 4.

[0039] The arc rib 51 is connected to the end cap 3 in a suspended manner. After the end cap 3 is connected with the stator assembly 1, the arc rib 51 is suspended along the axial direction of the connecting shaft 42 and positioned between the rotor assembly 2 and the disk body 411. Since the inner arc radius of the arc rib 51 is greater than the radius of the connecting shaft 42 and smaller than the radius of the disk body 411, the arc rib 51 does not contact the impeller 4, and it does not interfere with the normal rotation of the impeller 4. When it is necessary to disassemble the impeller 4, the connection between the end cap 3 and the stator assembly 1 is released, and then the end cap 3 is moved. The blades 412 or the disk body 411 forms an obstruction to the movement of the arc rib 51, which causes the arc rib 51 to hook the blade 412 or the disk body 411 as it moves with the end cap 3, thereby removing the impeller 4 from the accommodating cavity 6.

[0040] Optionally, to facilitate the disassembly of the end cap 3, and thus conveniently remove the impeller 4, in the embodiment of the present invention, the end cap 3 is detachably connected to the stator assembly 1. In the preferred embodiment, with reference to FIGS. 6, 7, and 8, the extension portion 52 extends along an edge of the end cap 3 to form an arc-shaped sidewall 31, wherein an outer side of the arc-shaped sidewall 31 is provided with a snapping structure 7, and the end cap 3 is detachably connected to the stator assembly 1 through the snapping structure 7. In one of embodiments, the snapping structure 7 includes a snap 71 and a first snap slot 72. The snap 71 is arranged on the outer side of the arc-shaped sidewall 31, and the first snap slot 72 is arranged on the inner wall of the accommodating cavity 6 of the stator assembly 1. When the end cap 3 is assembled with the stator assembly 1, the arc-shaped sidewall 31 is inserted into the accommodating cavity 6 and is assembled through the cooperation of the snap 71 and the first snap slot 72. In another embodiment, the positions of the snap 71 and the first snap slot 72 are interchanged, that is, the snap 71 is arranged on the inner wall of the accommodating cavity 6 of the stator assembly 1, and the first snap slot 72 is arranged on the arc-shaped sidewall 31, which can also achieve the detachable assembly of the stator assembly 1 and the end cap 3. The convenient disassembly of the end cap 3 is achieved based on the cooperation between the snap 71 and the first snap slot 72, thereby achieving convenient removal of the impeller 4. Of course, the end cap 3 and the stator assembly 1 can also be detachably assembled based on other structures in the prior art, such as plug-in connection, threaded connection, and the like.

[0041] Optionally, in other embodiments of the present invention, the end cap 3 and the stator assembly 1 are connected in a manner of interference fit, especially wherein the end cap 3 is made of plastic. Utilizing the deformation characteristics of plastic, the interference fit between the end cap 3 and the stator assembly 1 enables easy disassembly after assembly and ensures that the assembly is not easily loosened.

[0042] Referring to FIGS. 8 and 9, the accommodating cavity 6 includes a rotor accommodating cavity 61. The rotor accommodating cavity 61 is arranged inside the stator assembly 1, and the center of the rotor accommodating cavity 61 is provided with a support shaft 63. The rotor accommodating cavity 61 is configured for accommodating the rotor assembly 2. Referring to FIG. 4, the rotor assembly 2 is provided with a central shaft hole 21. When assembling the rotor assembly 2, the central shaft hole 21 is sleeved over the support shaft 63. The cooperation between the support shaft 63 and the central shaft hole 21 allows the rotor assembly 2 to be conveniently and precisely assembled into the rotor accommodating cavity 61.

[0043] Referring to FIG. 8, the accommodating cavity 6 further includes an impeller accommodating cavity 62 that communicates with the rotor accommodating cavity 61. The impeller accommodating cavity 62 is configured for accommodating the impeller 4 and the hooking structure 5, which allows the end cap 3 to cover and seal the hooking structure 5, the impeller 4, and the rotor assembly 2 within the accommodating cavity 6.

[0044] Optionally, as shown in FIGS. 8 and 9, the end of the support shaft 63 protrudes from the cavity bottom of the rotor accommodating cavity 61 and extends into the impeller accommodating cavity 62. The end of the support shaft 63 is arranged in a protruding manner to serve as a guiding and positioning role when the rotor assembly 2 is assembled into the rotor accommodating cavity 61, thus enabling quick and precise alignment and mounting of the rotor assembly 2.

[0045] In the embodiment of the present invention, the arrangement of the hooking structure 5 will occupy the cavity space of the accommodating cavity 6 to a certain extent, especially in the axial direction of the connecting shaft 42. In this case, it is necessary to consider the interference of the hooking structure 5 to the normal operation of the impeller 4. Optionally, referring to FIGS. 3, 8, and 9, a boss 64 is provided on the support shaft 63 included in the water pump of the embodiment of the present invention. The rotor assembly 2 is supported on the boss 64 so that a gap is provided between the impeller body 41 and the hooking structure 5 along the axis direction of the connecting shaft 42 to avoid the hooking structure 5. In other words, compared with conventional water pump designs, in the embodiment of the present invention, the rotor assembly 2 is supported such that the bottom surface of the impeller body 41 along the axis direction of the connecting shaft 42 is arranged higher than the top surface of the hooking structure 5, thereby avoiding interference with the normal operation of the impeller 4.

[0046] Similarly, considering the interference of the hooking structure 5 to the normal operation of the impeller 4, in another embodiment of the present invention, as shown in FIGS. 8 and 9, an avoidance groove 11 is provided at the junction between the impeller accommodating cavity 62 and the rotor accommodating cavity 61 on the stator assembly 1. During the assembly of the water pump, the hooking structure 5 is avoided through the avoidance groove 11. In other words, compared with conventional water pump designs, in the embodiment of the present invention, the hooking structure 5 is accommodated in the avoidance groove 11 when the impeller 4 is assembled into the accommodating cavity 6. At this time, along the axis direction of the connecting shaft 42, the bottom surface of the impeller body 41 is arranged higher than the top surface of the hooking structure 5, thereby avoiding interference with the normal operation of the impeller 4.

[0047] In other embodiments of the present invention, as shown in FIG. 10, the water pump further includes a filter member 8. The filter member 8 is connected to the side of the end cap 3 facing away from the hooking structure 5. Water enters the water inlet 34 of the water pump after passing through the filter member 8, and impurities are pre-filtered by the filter member 8, thus solving the problem of the impeller 4 being blocked by impurities to a certain extent. The filter member 8 can be a filter screen in the prior art, and different particle-sized impurities can be intercepted by changing the filtration aperture of the filter screen. Optionally, the filter member 8 is snapped with the end cap 3 in a rotary manner. Specifically, for example, as shown in FIGS. 7 and 10, three snap blocks are arranged in a circle at equal intervals around the filter member 8, and three second snap slots 32 are arranged in a circle at equal intervals around the side wall of the end cap 3. A slideway 33 is arranged on the end cap 3 corresponding to each second snap slot 32, and the slideway 33 communicates with the respective second snap slot 32. During the assembly of the filter member 8, the three snap blocks are inserted into the three slideways 33 correspondingly, and then the filter member 8 is rotated so that the snap blocks move along the slideways 33 and snap into the second snap slots 32. When disassembling the filter member, the filter member 8 is rotated in the opposite direction, allowing the snap blocks to move in reverse and successively disengage from the second snap slots 32 and the slideways 33. To facilitate the assembly and disassembly of the filter member 8, a gripping portion 83 is provided on the frame 82 of the filter member 8 where the filter screen is mounted. The gripping portion 83 forms a force-applying fulcrum for assembling and disassembling the filter member 8. Optionally, in terms of structure, the filter member 8 is integrally snap-fitted with the end cap 3, and by operating the gripping portion 83, a force can also be easily applied to remove the impeller 4.

[0048] Optionally, as shown in FIG. 12, the present invention further discloses a water pump, where it should be noted that the difference between this embodiment and the above embodiments lies only in the different solutions of the hooking structure 5. The hooking structure 5 includes at least three convex ribs 53, wherein the three convex ribs 53 are evenly distributed around the end cap 3, which means that the three convex ribs 53 are evenly distributed along the circumference of the end cap 3. The convex ribs 53 extend a certain distance from the end cap 3 in an axial direction of the connecting shaft 42 and then bend toward a center of the disc body 411, wherein an inscribed circle radius of ends of all the convex ribs 53 is greater than the radius of the connecting shaft 42, and the inscribed circle radius of ends of all the convex ribs 53 is less than the radius of the disc body 411. The convex ribs 53 can hang the impeller 4.

[0049] It should be noted that three, four, five, or more convex ribs 53 can be included in the hooking structure 5, which is selected according to what can stably suspend the impeller 4. All the convex ribs 53 are evenly distributed around the circumference of the end cap 3 and are connected to the end cap 3 in a suspended manner. After the end cap 3 is connected with the stator assembly 1, all the convex ribs 53 are suspended between the rotor assembly 2 and the disc body 411 in the axial direction of the connecting shaft 42. Since the inscribed circle radius of the ends of all the convex ribs 53 is greater than the radius of the connecting shaft 42 and smaller than the radius of the disk body 411, the convex rib 53 does not contact the impeller 4, and it does not interfere with the normal rotation of the impeller 4. When it is necessary to disassemble the impeller 4, the connection between the end cap 3 and the stator assembly 1 is released, and then the end cap 3 is moved. The blades 412 or the disk body 411 forms an obstruction to the convex rib 53, which causes all the convex ribs 53 to hook the blade 412 or the disk body 411 as they move with the end cap 3, thereby removing the impeller 4 from the accommodating cavity 6.

[0050] Optionally, the radius of the rotor assembly 2 is greater than the radius of the connecting shaft 42. To smoothly install the rotor assembly 2 into the rotor accommodating cavity 61, it is necessary to design the inscribed circle radius of the ends of all the convex ribs 53 to be greater than the radius of the rotor assembly 2. However, the requirements for the hooking structure 5 to hook the impeller 4 and the inscribed circle radius of the ends of all the convex ribs 53 to be smaller than the radius of the disc body 411 make the processing requirements for the length of convex rib 53 too high. To solve this technical problem, in the embodiment of the present invention, the convex ribs 53 are arranged as elastic convex ribs. Because the convex ribs 53 have elasticity, the rotor assembly 2 can be still smoothly assembled when the inscribed circle radius of the ends of all the convex ribs 53 can be smaller than the radius of the rotor assembly 2. In particular embodiments, force is applied to the rotor assembly 2 to expand the convex ribs 53 towards the rotor accommodating cavity 61 for smooth assembly into the rotor accommodating cavity 61.

[0051] Optionally, the convex rib 53 extends along an edge of the end cap 3 to form an arc-shaped sidewall 31, wherein an outer side of the arc-shaped sidewall 31 is provided with a snapping structure 7, and the end cap 3 is detachably connected to the stator assembly 1 through the snapping structure 7. After the convex ribs 53 extend to form the arc-shaped sidewall 31, the embodiment for connecting the end cap 3 to the stator assembly 1 through the snapping structure 7 on the outer side of the arc-shaped sidewall 31 is consistent with the above embodiment and will not be repeated herein.

[0052] Optionally, the present invention further discloses a humidifier, and the humidifier includes the water pump 100 in the above embodiments. The water pump 100 can be mounted at any position in the humidifier 200. Since the impeller 4 of the water pump 100 can be easily removed for cleaning, the humidifier 200 in the embodiment of the present invention can very conveniently and quickly solve the problem of being unable to operate properly due to water pump jamming. In addition, since the impeller 4 and the rotor assembly 2 can be individually removed, maintenance and replacement are convenient without the need to replace the entire water pump, thus reducing maintenance costs.

[0053] For example, specifically, as shown in FIGS. 12 and 13, the humidifier 200 further includes a bucket body 9. Optionally, the water pump 100 is arranged below a bottom of the bucket body 9. Specifically, a through hole 91 communicating with an interior of the bucket body 9 is arranged at the bottom of the bucket body 9; a housing 10 is arranged outside the bucket body 9; the housing 10 is located at the through hole 91 and is connected with the bucket body 9 in a hermetical manner; and the water pump 100 is arranged inside the housing 10. The bucket body 9 is configured for holding water. Since the water pump 100 is arranged below the bottom of the bucket body 9, it can solve the problem of being unable to pump water at low water levels in the bucket body 9 and the issue of dry burning. However, on the other hand, because the water pump 100 is arranged at the lowest point, dirt will accumulate at the position of the water pump 100, and after some time, the impeller 4 in the water pump 100 can be stuck by dirt and solid foreign objects, thereby causing a blockage problem. The humidifier described in the present invention, due to using the water pump 100 in the above-mentioned embodiments of the present invention, can very conveniently and quickly solve the problem of the water pump not functioning properly due to blockage.

[0054] For example, specifically, the shape and size of the through hole 91 matches the end cover 3, and the water in the bucket body 9 enters the water inlet on the end cover 3 through the through hole 91, thereby allowing the water pump 100 to pump water out. The connection between the housing 10 and the bucket body 9 is provided with a sealing ring 101 to prevent water leakage between them. The sealing ring 101 uses a soft silicone sealing ring, and to some extent, this provides a damping effect, thereby preventing the vibration of the water pump 100 from being directly transmitted to the bucket body 9, which forms a megaphone effect. The connection between the housing 10 and the bucket body 9 is preferably fixed connection by a screw, which ensures a reliable and stable connection. As shown in FIG. 14, the filter member 8 can be arranged within the bucket body 9, thus making it convenient to use the filter member 8 to bring out the end cover 3 from the bucket body 9 and take out the impeller 4 for cleaning. Of course, if the filter member 8 is not provided, it is preferable to arrange the end cover 3 within the bucket body 9, thereby facilitating operating the end cover 3 from the bucket body 9 for taking out and cleaning the impeller 4.

[0055] Optionally, as shown in FIGS. 13 and 14, a damping component 20 is filled between the water pump 100 and the housing 10. Due to the damping component 20 filled between the water pump 100 and the housing 10, the vibration of the water pump 100 is transmitted only in the space limited by the housing 10 with a smaller volume, with smaller amplitude. Compared with a water pump directly fixed to the larger and hollow bottom of the bucket body, it can avoid the direct transmission of the vibration of the water pump to the bucket body, which could otherwise form a megaphone effect. This effectively reduces the operational noise of the water pump and improves user experience.

[0056] Optionally, the humidifier 200 further includes a jamming detection module, wherein the jamming detection module is configured to determine whether the water pump 100 is jammed by detecting a current of the water pump 100. For example, specifically, the humidifier 200 can pre-store a current threshold, and during operation, it detects the current value of the water pump 100 in real-time or intermittently. When the detected current value is greater than the current threshold, it determines that the water pump 100 is currently jammed. Optionally, the humidifier 200 further includes a display module, wherein the display module is connected to the jamming detection module. When the water pump 100 is jammed, it displays through the display module, thus making it convenient for the user to directly observe from the display module that the water pump 100 is jammed, and allowing for timely inspection and removal of the impeller 4 for cleaning. Of course, in other embodiments, the humidifier 200 includes the jamming detection module and the display module.

[0057] Of course, in other embodiments, the humidifier 200 can further include an alarm module, which provides a voice alert when the water pump 100 is detected to be jammed, to remind the user to promptly inspect and remove the impeller 4 for cleaning.

[0058] The above-mentioned embodiments are merely the preferred embodiments given for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent replacements or changes made by those skilled in the art based on the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.INDUSTRIAL PRACTICALITY

[0059] In summary, the present invention provides a water pump and a humidifier, which can allow for the impeller to be conveniently removed for cleaning, thereby quickly resolving the issue of the water pump being blocked and not rotating.

Claims

1. A water pump, comprising a stator assembly, a rotor assembly, and an end cap, wherein the rotor assembly is connected with an impeller, and the end cap at least covers and seals the rotor assembly and the impeller within an accommodating cavity, wherein a side of the end cap facing the impeller is provided with a hooking structure, the hooking structure is configured to hang below the end cap when the impeller is assembled into the accommodating cavity or removed from the accommodating cavity, and after the impeller is assembled into the accommodating cavity, the hooking structure does not contact the impeller.

2. The water pump according to claim 1, wherein the impeller comprises an impeller body, comprising a disc body and blades connected to the disc body; and a connecting shaft, wherein the connecting shaft is connected to the disc body and the rotor assembly at two axial ends, respectively.

3. The water pump according to claim 2, wherein the hooking structure comprises an arc rib, an inner arc radius of the arc rib is greater than a radius of the connecting shaft, the inner arc radius of the arc rib is less than a radius of the disc body, both ends of the arc rib extend in a direction away from its arc center to form an extension portion, the extension portion connects to the end cap, and the arc rib can hang the impeller.

4. The water pump according to claim 3, wherein the extension portion extends along an edge of the end cap to form an arc-shaped sidewall, an outer side of the arc-shaped sidewall is provided with a snapping structure, and the end cap is detachably connected to the stator assembly through the snapping structure.

5. The water pump according to claim 1, wherein the end cap and the stator assembly are connected in a manner of interference fit.

6. The water pump according to claim 2, wherein the hooking structure comprises at least three convex ribs, and the three convex ribs are evenly distributed around the end cap; the convex ribs extend a certain distance from the end cap in an axial direction of the connecting shaft and then bend toward a center of the disc body, wherein an inscribed circle radius of ends of all the convex ribs is greater than the radius of the connecting shaft, and the inscribed circle radius of the ends of all the convex ribs is less than the radius of the disc body; and the convex ribs can hang the impeller.

7. The water pump according to claim 6, wherein the convex ribs are arranged as elastic convex ribs.

8. The water pump according to claim 6, wherein the convex rib extends along an edge of the end cap to form an arc-shaped sidewall, an outer side of the arc-shaped sidewall is provided with a snapping structure, and the end cap is detachably connected to the stator assembly through the snapping structure.

9. The water pump according to claim 2, wherein the accommodating cavity comprises a rotor accommodating cavity, arranged inside the stator assembly, wherein a center of the rotor accommodating cavity is provided with a support shaft; and an impeller accommodating cavity, communicating with the rotor accommodating cavity, wherein the impeller is accommodated within the impeller accommodating cavity, wherein the rotor assembly is provided with a central shaft hole, the rotor assembly is accommodated within the rotor accommodating cavity, and the central shaft hole is sleeved onto the support shaft.

10. The water pump according to claim 9, wherein an end of the support shaft protrudes from a cavity bottom of the rotor accommodating cavity and extends into the impeller accommodating cavity.

11. The water pump according to claim 9, wherein a boss is arranged on the support shaft, and the rotor assembly is supported by the boss, such that the impeller body avoids the hooking structure along an axial direction of the connecting shaft.

12. The water pump according to claim 9, wherein an avoidance groove is provided at a junction of the impeller accommodating cavity and the rotor accommodating cavity on the stator assembly, and the hooking structure is avoided through the avoidance groove during an assembly of the water pump.

13. The water pump according to claim 1, further comprising a filter member, wherein the filter member is connected to a side of the end cap facing away from the hooking structure, and the filter member is snapped with the end cap in a rotary manner.

14. A humidifier, comprising the water pump according to any one of claims 1 to 13.

15. The humidifier according to claim 14, further comprising a bucket body, wherein the water pump is arranged below a bottom of the bucket body.

16. The humidifier according to claim 15, wherein a through hole communicating with an interior of the bucket body is arranged at the bottom of the bucket body, a housing is arranged outside the bucket body, the housing is located at the through hole and is connected with the bucket body in a hermetical manner, and the water pump is arranged inside the housing.

17. The humidifier according to claim 16, wherein a damping component is filled between the water pump and the housing.

18. The humidifier according to claim 14, further comprising a jamming detection module, wherein the jamming detection module is configured to determine whether the water pump is jammed by detecting a current of the water pump.

19. The humidifier according to claim 18, further comprising a display module, wherein the display module is connected to the jamming detection module, and when the water pump is jammed, the jamming is shown through the display module.

Images