Water pump and humidifier

Abstract

The present invention relates to the field of water pumps, and discloses a water pump and a humidifier, including a stator assembly, a rotor assembly and an end cover, wherein the rotor assembly is connected to an impeller, and the end cover at least seals the rotor assembly and the impeller in an accommodating cavity, and is characterized in that: a hook structure is provided on the side of the end cover facing the impeller, and the hook structure is configured to be suspended below the end cover when the impeller is assembled into the accommodating cavity and when it is detached from the accommodating cavity, and the hook structure does not contact the impeller after the impeller is assembled into the accommodating cavity. The water pump and humidifier of the present invention can very conveniently take out the impeller for cleaning, and quickly solve the problem of the water pump being blocked and not rotating.

Description

Technical Field

[0001] The invention relates to the technical field of humidifier water pumps, and in particular to a water pump and a humidifier using the water pump. Background Art

[0002] The mistless humidifier with spray-type moist water curtain is usually equipped with a water tank, and the wet curtain is arranged on the upper part of the water tank. The water in the water tank is pumped to the upper part of the wet curtain by a water pump, and the wet curtain is sprayed and wetted. Then, with the help of a fan, the dry air is blown or sucked through the wet curtain and discharged into the air to achieve the purpose of humidification.

[0003] After the humidifier has been used for a period of time, scale or accumulated foreign matter can easily cause the water pump to become clogged and stop rotating. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that a water pump is blocked and cannot rotate, and to provide a water pump and a humidifier, wherein the impeller can be easily removed for cleaning, thereby quickly solving the problem that the water pump is blocked and cannot rotate.

[0005] In the first aspect, in order to solve the above-mentioned technical problems, the present invention provides a water pump, comprising a stator assembly, a rotor assembly and an end cover, wherein the rotor assembly is connected to an impeller, and the end cover at least seals the rotor assembly and the impeller in an accommodating cavity, and a hook structure is provided on the side of the end cover facing the impeller, and the hook structure is configured to be suspended under the end cover when the impeller is assembled into the accommodating cavity and detached from the accommodating cavity, and the hook structure does not contact the impeller after the impeller is assembled into the accommodating cavity.

[0006] In a preferred embodiment of the present invention, the impeller further comprises an impeller body and a connecting shaft, wherein the impeller body comprises 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 both axial ends.

[0007] In a preferred embodiment of the present invention, the hook structure further includes an arc-shaped rib, the inner arc radius of the arc-shaped rib is larger than the radius of the connecting shaft and smaller than the radius of the disk body; both ends of the arc-shaped rib extend away from the arc center to form an extension portion, and the extension portion is connected to the end cover; the arc-shaped rib can suspend the impeller.

[0008] In a preferred embodiment of the present invention, the extension portion further extends along the edge of the end cover to form an arcuate side wall, a snap structure is provided on the outer side of the arcuate side wall, and the end cover is detachably connected to the stator assembly through the snap structure.

[0009] In a preferred embodiment of the present invention, the end cover is further connected to the stator assembly by interference fit.

[0010] In a preferred embodiment of the present invention, the hook structure further includes at least three convex ribs, and the three convex ribs are evenly distributed around the end cover; the convex ribs extend from the end cover to the axial direction of the connecting shaft for a certain distance and then bend toward the center of the disk body, and the radius of the inscribed circle at the end of all the convex ribs is larger than the radius of the connecting shaft and smaller than the radius of the disk body; the convex ribs can suspend the impeller.

[0011] In a preferred embodiment of the present invention, the convex ribs are further configured as elastic convex ribs.

[0012] In a preferred embodiment of the present invention, the convex rib further extends along the edge of the end cover to form an arcuate side wall, a snap structure is provided on the outer side of the arcuate side wall, and the end cover is detachably connected to the stator assembly through the snap structure.

[0013] In a preferred embodiment of the present invention, the accommodating chamber further includes a rotor accommodating chamber and an impeller accommodating chamber, the rotor accommodating chamber is arranged in the stator assembly; a support shaft is provided at the center of the rotor accommodating chamber; the impeller accommodating chamber is communicated with the rotor accommodating chamber, and the impeller is accommodated in the impeller accommodating chamber; wherein the rotor assembly has a central axis hole, the rotor assembly is accommodated in the rotor accommodating chamber, and the support shaft is sleeved on the central axis hole.

[0014] In a preferred embodiment of the present invention, the end of the support shaft further protrudes from the bottom of the rotor accommodating chamber and extends into the impeller accommodating chamber.

[0015] In a preferred embodiment of the present invention, the support shaft is further provided with a boss, and the rotor assembly is supported to the boss so that the impeller body avoids the hook structure along the axial direction of the connecting shaft.

[0016] In a preferred embodiment of the present invention, the stator assembly is further provided with an avoidance groove at the junction of the impeller accommodating chamber and the rotor accommodating chamber, and the hook structure is avoided through the avoidance groove when assembling the water pump.

[0017] In a preferred embodiment of the present invention, it further comprises a filter element, wherein the filter element is connected to a side of the end cover that is backed by the hook structure, and the filter element is rotatably engaged with the end cover.

[0018] In a second aspect, in order to solve the above technical problem, the present invention also provides a humidifier, including the water pump.

[0019] In a preferred embodiment of the present invention, it further includes a barrel body, and the water pump is arranged below the bottom of the barrel body.

[0020] In a preferred embodiment of the present invention, the bottom of the barrel body is further provided with a through hole communicating with the interior thereof, the outside of the barrel body is provided with a shell, the shell is located at the through hole and is sealedly connected to the barrel body; the water pump is arranged in the shell.

[0021] In a preferred embodiment of the present invention, a shock absorbing component is further filled between the water pump and the housing.

[0022] In a preferred embodiment of the present invention, it further includes a jam detection module, and the jam detection module is configured to determine whether the water pump is jammed by detecting the current of the water pump.

[0023] In a preferred embodiment of the present invention, it further includes a display module, which is connected to the jam detection module and displays when the water pump is jammed.

[0024] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0025] The water pump and humidifier described in the present invention, the water pump includes a stator assembly, a rotor assembly, an end cover and a hook structure, the rotor assembly is connected to an impeller, the end cover seals the rotor assembly, the impeller and the hook structure in an accommodating chamber, the hook structure is suspended below the end cover, the hook structure is used to hook the impeller when the impeller needs to be taken out for cleaning, only the end cover is removed to drive the hook structure to hook the impeller and take it out of the accommodating chamber, so that the impeller can be taken out very conveniently for cleaning, and the problem of the water pump being blocked and not rotating is quickly solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of a water pump in a preferred embodiment of the present invention;

[0027] Figure 2 for Figure 1 An exploded view of the water pump shown;

[0028] Figure 3 for Figure 1 A cross-sectional view of the water pump shown;

[0029] Figure 4 for Figure 2 The schematic diagram of the assembly of the impeller and rotor assembly in the water pump shown;

[0030] Figure 5 for Figure 4 The main view;

[0031] Figure 6 It is a structural schematic diagram of an end cover connected with a hook structure in a preferred embodiment of the present invention;

[0032] Figure 7 for Figure 6 A schematic diagram of the structure from another perspective;

[0033] Figure 8 for Figure 2 A schematic diagram of the structure of a stator assembly in the water pump shown;

[0034] Fig. 9 for Figure 2 The schematic diagram of the assembly of the stator assembly and the rotor assembly in the water pump shown;

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of a water pump in another embodiment of the present invention;

[0036] Fig.11 for Fig.10 The cross-sectional view shown;

[0037] Fig.12 It is a structural schematic diagram of an end cover connected with a hook structure in the second embodiment of the present invention;

[0038] Fig.13 This is a schematic diagram of the three-dimensional structure of a humidifier in Embodiment 3 of the present invention;

[0039] Fig.14 for Fig.13 An exploded view of the humidifier shown;

[0040] Fig.15 for Fig.13 a cross-sectional view of the humidifier shown;

[0041] Fig.16 for Fig.15 A magnified partial view of A in the humidifier shown.

[0042] Description of the numbers in the figure:

[0043] 100-water pump; 200-humidifier;

[0044] Stator assembly, 11-avoidance groove, 12-water outlet;

[0045] Rotor assembly, 21 center shaft hole;

[0046] End cover, 31-arc-shaped side wall, 32-second slot, 33-slideway, 34-water inlet;

[0047] Impeller, 41-impeller body, 411-disk body, 412-blades; 42-connecting shaft;

[0048] Hook structure, 51-arc rib, 52-extension part, 53-convex rib;

[0049] Accommodating chamber, 61-rotor accommodating chamber, 62-impeller accommodating chamber, 63-support shaft, 64-boss;

[0050] Buckle structure, 71- buckle, 72- first slot;

[0051] Filter, 82-frame, 83-grip;

[0052] Barrel body, 91-through hole;

[0053] Housing, 101-seal ring;

[0054] Shock absorbing components. DETAILED DESCRIPTION

[0055] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Embodiment 1

[0056] The embodiment of the present invention discloses a water pump, which can realize very convenient removal of the impeller of the water pump for cleaning, so as to quickly solve the problem of clogging and non-rotation of the water pump.

[0057] Reference Figure 1 , Figure 2 and Figure 3 As shown, the water pump includes a stator assembly 1, a rotor assembly 2 and an end cover 3, and the rotor assembly 2 is connected to an impeller 4; it should be noted that the rotor assembly 2 and the impeller 4 can be an integral structure or a split structure; when the impeller 4 and the rotor assembly 2 are an integral structure, the rotor assembly 2 is taken out together with the impeller 4; when the impeller 4 and the rotor assembly 2 are a split structure, the impeller 4 is taken out separately.

[0058] The center of the end cover 3 is provided with a water inlet 34, and one side of the stator assembly 1 is provided with a water outlet 12; in a preferred embodiment of the present invention, the end cover 3 is detachably connected to the stator assembly 1, and after the end cover 3 and the stator assembly 1 are connected, a receiving chamber 6 is formed inside the two, and the stator assembly 1, the rotor assembly 2 and the impeller 4 are accommodated in the receiving chamber 6 to form a water pump. In another embodiment, the end cover 3 can also be connected to other components to form a receiving chamber 6 inside the end cover 3. For example, when the water pump is used in a humidifier, the end cover 3 can also be connected to the housing of the humidifier to form a receiving chamber 6.

[0059] Furthermore, a hook structure 5 is provided on the side of the end cover 3 facing the impeller 4, and the hook structure 5 is configured to be suspended below the end cover 3 when the impeller 4 is assembled into the accommodating cavity 6 and when it is detached from the accommodating cavity 6, and after the impeller 4 is assembled into the accommodating cavity 6, the hook structure 5 does not contact the impeller 4.

[0060] The water pump described in the embodiment of the present invention includes a stator assembly 1, a rotor assembly 2, an end cover 3 and a hook structure 5, the rotor assembly 2 is connected to an impeller 4, the end cover 3 seals the rotor assembly 2, the impeller 4 and the hook structure 5 in an accommodating chamber 6, and the accommodating chamber 6 is formed when the end cover 3 is covered; in a preferred embodiment, the end cover 3 is detachably connected to the stator assembly 1, and when the end cover 3 is connected to the stator assembly 1, a closed accommodating chamber 6 is formed inside the two, and the rotor assembly 2, the impeller 4 and the hook structure 5 are sealed in the accommodating chamber 6; when the end cover 3 is disconnected from the stator assembly 1, for example, the end cover 3 is removed from the stator assembly 1, and the end cover 3 drives the hook structure 5 to hook the impeller 4 and take it out of the accommodating chamber 6.

[0061] Specifically, in the embodiment of the present invention, the position and structure of the hook structure 5 are associated with the end cover 3, and have at least the following three states:

[0062] State 1: When the impeller 4 is assembled into the accommodating chamber 6, the hook structure 5 is suspended below the end cover 3;

[0063] State 2: After the impeller 4 is assembled into the accommodating chamber 6, the hook structure 5 is suspended below the end cover 3 and does not contact the impeller 4, so as not to interfere with the normal rotation of the impeller 4;

[0064] State three: when the impeller 4 is separated from the accommodating chamber 6, the hook structure 5 is suspended below the end cover 3, and when the end cover 3 is removed, the hook structure hooks the impeller 4 located below it, and takes the impeller 4 out of the accommodating chamber 6 as the end cover 3 is removed.

[0065] The hook structure 5 is suspended below the end cover 3. The hook structure 5 is used to hook the impeller 4 when it is necessary to take out the impeller 4 for cleaning. Only by removing the end cover 3 can the hook structure 5 be driven to hook the impeller 4 and take it out from the accommodating chamber 6 without the aid of any tools. It is very clever and convenient. In this way, the impeller 4 can be taken out very conveniently for cleaning, and the problem of the water pump being blocked and not rotating can be quickly solved.

[0066] Reference Figure 4 and Figure 5 As shown, the impeller 4 includes an impeller body 41 and a connecting shaft 42, and the impeller body 41 includes a disc body 411 and blades 412 connected to the disc body 411; Figure 6As shown, the hook structure 5 includes an arc rib 51, the inner arc radius of the arc rib 51 is larger than the radius of the connecting shaft 42 and smaller than the radius of the disk body 411; both ends of the arc rib 51 extend away from the arc center to form an extension portion 52, and the extension portion 52 is connected to the end cover 3; the arc rib 51 can suspend the impeller 4.

[0067] The arc rib 51 is connected to the end cover 3 in a suspended posture. After the end cover 3 is connected to the stator assembly 1, the arc rib 51 is suspended between the rotor assembly 2 and the disk body 411 along the axial direction of the connecting shaft 42. Since the inner arc radius of the arc rib 51 is larger 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 does not interfere with the normal rotation of the impeller 4. When the impeller 4 needs to be disassembled, the connection between the end cover 3 and the stator assembly 1 is released, and then the end cover 3 is moved, and the blades 412 or the disk body 411 form a barrier to the movement of the arc rib 51, so that the arc rib 51 hooks the blades 412 or the disk body 411 when the end cover 3 is moved to remove the impeller 4 from the accommodating chamber 6.

[0068] Furthermore, in order to facilitate the removal of the end cover 3 and the removal of the impeller 4, in the embodiment of the present invention, the end cover 3 is detachably connected to the stator assembly 1. In the preferred embodiment, Figure 6 , Figure 7 and Figure 8 As shown, the extension portion 52 extends along the edge of the end cover 3 to form an arc-shaped side wall 31, and a buckle structure 7 is provided on the outer side of the arc-shaped side wall 31, and the end cover 3 is detachably connected to the stator assembly 1 through the buckle structure 7. In one embodiment, the buckle structure 7 includes a buckle 71 and a first clamping groove 72, the buckle 71 is arranged on the outer side of the arc-shaped side wall 31, and the first clamping groove 72 is arranged on the inner wall of the accommodating cavity 6 of the stator assembly 1. When the end cover 3 is assembled with the stator assembly 1, the arc-shaped side wall 31 is inserted into the accommodating cavity 6, and assembled by the cooperation of the buckle 71 and the first clamping groove 72. In another embodiment, the positions of the buckle 71 and the first clamping groove 72 are interchanged, that is, the buckle 71 is arranged on the inner wall of the accommodating cavity 6 of the stator assembly 1, and the first clamping groove 72 is arranged on the arc-shaped side wall 31, which can also realize the detachable assembly of the stator assembly 1 and the end cover 3. The cooperation between the buckle 71 and the first slot 72 enables the convenient removal of the end cover 3, thereby enabling the convenient removal of the impeller 4. Of course, the end cover 3 and the stator assembly 1 can also be detachably assembled based on other structures in the prior art, such as plug-in, threaded connection, etc.

[0069] Furthermore, in other embodiments of the present invention, the end cover 3 and the stator assembly 1 are connected by interference fit. In particular, the end cover 3 is made of plastic. By utilizing the deformation characteristics of plastic, the end cover 3 and the stator assembly 1 are interference fit, so that the two can be easily disassembled after assembly and are not easy to loosen after assembly.

[0070] Reference Figure 8 and Fig. 9 As shown, the accommodating chamber 6 includes a rotor accommodating chamber 61, which is disposed in the stator assembly 1. A support shaft 63 is disposed at the center of the rotor accommodating chamber 61. The rotor accommodating chamber 61 is used to accommodate the rotor assembly 2; Figure 4 As shown, the rotor assembly 2 has a central shaft hole 21. When assembling the rotor assembly 2, the central shaft hole 21 is sleeved with the support shaft 63. The cooperation between the support shaft 63 and the central shaft hole 21 enables the rotor assembly 2 to be assembled into the rotor accommodating cavity 61 very conveniently and precisely.

[0071] Reference Figure 8 As shown, the accommodating chamber 6 also includes an impeller accommodating chamber 62 connected to the rotor accommodating chamber 61, and the impeller accommodating chamber 62 is used to accommodate the impeller 4 and the hook structure 5, so that the end cover 3 can seal the hook structure 5, the impeller 4 and the rotor assembly 2 in the accommodating chamber 6.

[0072] Further, see Figure 8 and Fig. 9 As shown, the end of the support shaft 63 protrudes from the bottom of the rotor accommodating chamber 61 and extends into the impeller accommodating chamber 62. The protruding end of the support shaft 63 serves as a positioning guide when the rotor assembly 2 is assembled into the rotor accommodating chamber 61, so that the rotor assembly 2 can be quickly and accurately installed in position.

[0073] In the embodiment of the present invention, the setting of the hook structure 5 will occupy the space in the accommodating cavity 6 to a certain extent, especially the space occupied along the axial direction of the connecting shaft 42. In this case, it is necessary to consider the interference of the hook structure 5 with the normal operation of the impeller 4; Figure 3 , Figure 8 and Fig. 9 As shown, the water pump in the embodiment of the present invention includes a support shaft 63 provided with a boss 64, and the rotor assembly 2 is supported to the boss 64, so that there is a gap between the impeller body 41 and the hook structure 5 along the axial direction of the connecting shaft 42 to avoid the hook structure 5; that is, compared with the conventional water pump design, in the embodiment of the present invention, the rotor assembly 2 is supported to the bottom surface of the impeller body 41 along the axial direction of the connecting shaft 42, which is higher than the top surface of the hook structure 5, thereby avoiding interference with the normal operation of the impeller 4.

[0074] Similarly, considering the interference of the hook structure 5 with the normal operation of the impeller 4, in another embodiment of the present invention, referring to Figure 8 and Fig. 9 As shown, the stator assembly 1 is provided with an avoidance groove 11 at the junction of the impeller accommodating cavity 62 and the rotor accommodating cavity 61, and the hook structure 5 is avoided by the avoidance groove 11 when the water pump is assembled. That is to say, compared with the conventional water pump design, in the embodiment of the present invention, the hook 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 axial direction of the connecting shaft 42, the bottom surface of the impeller body 41 is higher than the top surface of the hook structure 5, thereby avoiding interference with the normal operation of the impeller 4.

[0075] In other embodiments of the present invention, referring to Fig.10 As shown, the water pump also includes a filter 8, which is connected to the side of the end cover 3 that is backed by the hook structure 5. After passing through the filter 8, water enters the water inlet 34 of the water pump, and the impurities are pre-filtered by the filter 8, which solves the problem of impurities blocking the impeller 4 to a certain extent; the filter 8 can be a filter screen in the prior art, and impurities of different particle sizes can be intercepted by changing the filter aperture of the filter screen. Further, the filter 8 is rotatably connected with the end cover 3. For details, refer to Figure 7 and Fig.10 As shown, three blocks are evenly distributed around a circle on the filter 8, and three second slots 32 are evenly distributed around a circle on the side wall of the end cover 3. A slideway 33 connected to the second slot 32 is provided on the end cover 3 corresponding to each second slot 32. When assembling the filter 8, the three blocks are respectively inserted into the three slideways 33, and then the filter 8 is rotated so that the blocks move along the slideways 33 and are inserted into the second slots 32; when disassembling the filter, the filter 8 is rotated in the opposite direction so that the blocks move in the opposite direction and sequentially disengage from the second slots 32 and the slideways 33. Considering the convenience of disassembling and assembling the filter 8, the filter 8 is provided with a gripping portion 83 on the frame 82 where the filter screen is assembled, and the gripping portion 83 forms a force fulcrum for disassembling and assembling the filter 8. Further, from a structural point of view, the filter 8 is snap-fitted with the end cover 3 as a whole, and by operating the gripping portion 83, it is also convenient to apply force to remove the impeller 4. Embodiment 2

[0076] Reference Fig.12As shown, the embodiment of the present invention further discloses a water pump. It should be noted that the difference between this embodiment and the first embodiment is that the hook structure 5 has a different scheme. The hook structure 5 includes at least three convex ribs 53, and the three convex ribs 53 are evenly distributed around the end cover 3; the convex ribs 53 extend from the end cover 3 to the axial direction of the connecting shaft 42 for a certain distance and then bend toward the center direction of the disk body 411. The radius of the inscribed circle of the end of all the convex ribs 53 is larger than the radius of the connecting shaft 42 and smaller than the radius of the disk body 411; the convex ribs 53 can suspend the impeller 4.

[0077] It should be noted that the hook structure 5 includes three, four, five, or more convex ribs 5, which are selected based on the actual ability to stably hook the impeller 4. All the convex ribs 5 are evenly spaced along the end cover 3 and connected to the end cover 3 in a hanging posture. After the end cover 3 is connected to the stator assembly 1, all the convex ribs 5 are suspended between the rotor assembly 2 and the disk body 411 along the axial direction of the connecting shaft 42. Since the radius of the inscribed circle at the end 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 ribs 53 do not contact the impeller 4 and will not interfere with the normal rotation of the impeller 4. When the impeller 4 needs to be disassembled, the connection between the end cover 3 and the stator assembly 1 is released, and then the end cover 3 is moved, and the blades 412 or the disk body 411 form a barrier to the convex ribs 53, so that all the convex ribs 53 hook the blades 412 or the disk body 411 when the end cover 3 is moved to remove the impeller 4 from the accommodating chamber 6.

[0078] Furthermore, the radius of the rotor assembly 2 is greater than the radius of the connecting shaft 42. In order to smoothly transfer the rotor assembly 2 to the rotor accommodating cavity 61, it is necessary to design the inscribed circle radius of the end of all the ribs 53 to be greater than the radius of the rotor assembly 2. However, the hook structure 5 can hook the impeller 4 and requires that the inscribed circle radius of the end of all the ribs 53 is smaller than the radius of the disk body 411, which makes the length processing requirements of the rib 53 strict. In order to solve this technical problem, in an embodiment of the present invention, the rib 5 is configured as an elastic rib. Since the rib 5 is elastic, the rotor assembly 2 can be smoothly assembled even when the inscribed circle radius of the end of all the ribs 53 can be smaller than the radius of the rotor assembly 2. In specific implementation: force is applied to the rotor assembly 2 to open the rib 53 toward the rotor accommodating cavity 61 so as to smoothly assemble it into the rotor accommodating cavity 61.

[0079] Furthermore, the convex rib 53 extends along the edge of the end cover 3 to form an arcuate side wall 31, and a buckle structure 7 is provided on the outer side of the arcuate side wall 31, and the end cover 3 is detachably connected to the stator assembly 1 through the buckle structure 7. After the convex rib 53 extends to form the arcuate side wall 31, the implementation method of connecting the end cover 3 and the stator assembly 1 based on the buckle structure 7 on the outer side of the arcuate side wall 31 is consistent with the above embodiment 1, and will not be repeated here. Embodiment 3

[0080] The embodiment of the present invention discloses a humidifier, the humidifier includes the water pump 100 in the first embodiment or the second embodiment, the water pump 100 can be installed at any position of the humidifier 200, and since the impeller 4 of the water pump 100 can be easily taken out for cleaning, the humidifier 200 of the embodiment of the present invention can easily and quickly solve the problem that the water pump cannot be used normally due to the blocking of the water pump. In addition, since the impeller 4 and the rotor assembly 2 can be taken out separately, it is convenient to repair and replace without replacing the water pump as a whole, thereby reducing the cost of use and maintenance.

[0081] Specifically, refer to Fig.12 and Fig.13 As shown, the humidifier 200 also includes a barrel 9. In a preferred embodiment of the present invention, the water pump 100 is arranged below the bottom of the barrel 9; specifically, the bottom of the barrel 9 is provided with a through hole 91 communicating with the inside thereof, and the barrel 9 is provided with a shell 10 outside, and the shell 10 is located at the through hole 91 and is sealed and connected to the barrel 9; the water pump 100 is arranged in the shell 10. The barrel 9 is used to hold water. Since the water pump 100 is arranged below the bottom of the barrel 9, the problem of being unable to pump water and dry burning due to low water level in the barrel 9 can be solved; however, on the other hand, since the water pump 100 is at the lowest position, dirt will accumulate at the position of the water pump 100. After a period of time, the impeller 4 in the water pump 100 will be stuck by dirt and solid foreign matter and cause a stalling problem. The humidifier described in the embodiment of the present invention, due to the use of the water pump 100 in the first or second embodiment of the present invention, can very conveniently and quickly solve the problem of being unable to use normally due to the stalling of the water pump.

[0082] Specifically, the shape and size of the through hole 91 match the end cover 3, and the water in the barrel body 9 enters the water inlet on the end cover 3 through the through hole 91, so that the water pump 100 pumps the water out. A sealing ring 101 is provided at the connection between the shell 10 and the barrel body 9 to prevent water leakage between the two; the sealing ring 101 adopts a soft silicone sealing ring, which plays a shock-absorbing role to a certain extent, and prevents the vibration of the water pump 100 from being directly transmitted to the barrel body 9 to form a horn effect. The connection between the shell 10 and the barrel body 9 is preferably fixed with screws, and the connection is reliable and stable. Among them, refer to Fig.14As shown, the filter element 8 can be arranged in the barrel body 9, so as to facilitate taking out the end cover 3 from the barrel body 9 through the filter element 8 and taking out the impeller 4 for cleaning; of course, if the filter element 8 is not arranged, it is preferred to arrange the end cover 3 in the barrel body 9, which is also convenient for operating the end cover 3 from the barrel body 9 to take out the impeller 4 for cleaning.

[0083] Further, see Fig.13 and Fig.14 As shown, a shock absorbing component 20 is filled between the water pump 100 and the housing 10. Since the shock absorbing component 20 is filled between the water pump 100 and the housing 10, the vibration of the water pump 100 is only transmitted in the space limited by the housing 10 with a smaller volume, and the amplitude is smaller. Compared with the water pump being directly fixed to the bottom of the larger and hollow barrel body, the vibration of the water pump can be prevented from being directly transmitted to the barrel body to form a horn effect, which effectively reduces the working noise of the water pump and improves the user experience.

[0084] Furthermore, the humidifier 200 also includes a jam detection module and a display module, and the jam detection module is configured to determine whether the water pump 100 is jammed by detecting the current of the water pump 100. Specifically, the current threshold can be pre-stored in the humidifier 200, and the current value of the water pump 100 is detected in real time or intermittently during operation. When the detected current value is greater than the current threshold, it is determined that the water pump 100 is currently jammed. The display module is connected to the jam detection module, and when the water pump 100 is jammed, it is displayed through the display module, which is convenient for intuitively checking from the display module that the water pump 100 is jammed, so as to check and remove the impeller 4 in time for cleaning.

[0085] Of course, in other embodiments, the humidifier 200 may further include an alarm module. When it is detected that the water pump 100 is stuck, a voice alarm is issued to remind the user to check and remove the impeller 4 for cleaning in time.

[0086] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A water pump, comprising a stator assembly, a rotor assembly and an end cover, wherein the rotor assembly is connected to an impeller, and the end cover at least seals the rotor assembly and the impeller in an accommodating cavity, characterized in that: A hook structure is provided on the side of the end cover facing the impeller, and the hook structure is configured to be suspended under the end cover when the impeller is assembled into the accommodating cavity and detached from the accommodating cavity, and the hook structure is not in contact with the impeller after the impeller is assembled into the accommodating cavity; wherein the hook structure is used to hook the impeller when the impeller needs to be taken out for cleaning, and the hook structure can be driven to hook the impeller and take it out of the accommodating cavity by simply removing the end cover.

2. The water pump according to claim 1, characterized in that: The impeller comprises: An impeller body, comprising a disc body and blades connected to the disc body; A connecting shaft has two axial ends respectively connected to the disc body and the rotor assembly.

3. The water pump according to claim 2, characterized in that: The hook structure comprises an arc-shaped rib, the inner arc radius of the arc-shaped rib is larger than the radius of the connecting shaft and smaller than the radius of the disc body; both ends of the arc-shaped rib extend away from the arc center to form an extension part, and the extension part is connected to the end cover; The arc-shaped ribs can suspend the impeller.

4. The water pump according to claim 3, characterized in that: The extension portion extends along the edge of the end cover to form an arc-shaped side wall, and a buckle structure is provided on the outer side of the arc-shaped side wall. The end cover is detachably connected to the stator assembly through the buckle structure.

5. The water pump according to claim 1, characterized in that: The end cover is connected to the stator assembly by interference fit.

6. The water pump according to claim 2, characterized in that: The hook structure includes at least three convex ribs, which are evenly distributed around the end cover; the convex ribs extend from the end cover to the axial direction of the connecting shaft for a certain distance and then bend toward the center of the disk body, and the radius of the inscribed circle at the end of all the convex ribs is larger than the radius of the connecting shaft and smaller than the radius of the disk body; the convex ribs can hang the impeller.

7. The water pump according to claim 6, characterized in that: The convex ribs are configured as elastic convex ribs.

8. The water pump according to claim 6, characterized in that: The convex rib extends along the edge of the end cover to form an arc-shaped side wall, and a buckle structure is provided on the outer side of the arc-shaped side wall. The end cover is detachably connected to the stator assembly through the buckle structure.

9. The water pump according to claim 2, characterized in that: The accommodating chamber comprises: A rotor accommodating chamber is arranged in the stator assembly; a support shaft is arranged at the center of the rotor accommodating chamber; An impeller accommodating chamber, which is communicated with the rotor accommodating chamber, and the impeller is accommodated in the impeller accommodating chamber; Wherein, the rotor assembly has a central shaft hole, the rotor assembly is accommodated in the rotor accommodating cavity, and the central shaft hole is sleeved with the support shaft.

10. The water pump according to claim 9, characterized in that: The end of the support shaft protrudes from the bottom of the rotor accommodating cavity and extends into the impeller accommodating cavity.

11. The water pump according to claim 9, characterized in that: The support shaft is provided with a boss, and the rotor assembly is supported to the boss, so that the impeller body avoids the hook structure along the axial direction of the connecting shaft.

12. The water pump according to claim 9, characterized in that: The stator assembly is provided with an avoidance groove at the junction of the impeller accommodating cavity and the rotor accommodating cavity, and the hook structure is avoided through the avoidance groove when assembling the water pump.

13. The water pump according to claim 1, characterized in that: It also includes a filter element, which is connected to the side of the end cover that is backed by the hook structure, and the filter element is rotatably engaged with the end cover.

14. A humidifier, characterized in that: Comprising a water pump as described in any one of claims 1-13.

15. The humidifier according to claim 14, characterized in that: It also includes a barrel body, and the water pump is arranged below the bottom of the barrel body.

16. The humidifier according to claim 15, characterized in that: The bottom of the barrel body is provided with a through hole communicating with the interior thereof, and the outside of the barrel body is provided with a shell, which is located at the through hole and is sealedly connected to the barrel body; the water pump is arranged in the shell.

17. The humidifier according to claim 16, characterized in that: A shock absorbing component is filled between the water pump and the housing.

18. The humidifier according to claim 14, characterized in that: It also includes a jam detection module, which is configured to determine whether the water pump is jammed by detecting the current of the water pump.

19. The humidifier according to claim 18, characterized in that: It also includes a display module, which is connected to the jam detection module and displays when the water pump is jammed.

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