CN219993950U - Split type water pump - Google Patents
Split type water pump Download PDFInfo
- Publication number
- CN219993950U CN219993950U CN202321315251.XU CN202321315251U CN219993950U CN 219993950 U CN219993950 U CN 219993950U CN 202321315251 U CN202321315251 U CN 202321315251U CN 219993950 U CN219993950 U CN 219993950U
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- pump
- water
- cavity
- impeller
- rotor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a split water pump, which comprises a rotor assembly, an impeller, a pump cover and a base, wherein the rotor assembly, the impeller and the pump cover are arranged at the bottom of a water tank; the water tank comprises a protruding part protruding out of the bottom surface, and a pump cavity with an opening positioned on the bottom surface of the water tank is arranged in the protruding part; the rotor component is assembled in the pump cavity through the opening of the pump cavity; the pump cover is detachably arranged at the opening of the pump cavity, an impeller cavity is formed between the pump cover and the pump cavity, the rotor assembly comprises a rotating shaft, the tail end of the rotating shaft extends into the impeller cavity, and the impeller is fixed at the tail end of the rotating shaft; according to the split water pump, the rotor cavity is formed in the base, and the rotor cavity is wrapped or partially wrapped by the stator assembly, so that the split water pump can realize water-electricity separation, and electric shock events are avoided to the greatest extent. And the rotor assembly is driven to be detached from the pump cavity by the drawing-out rotating shaft, so that the staff can conveniently clean the scale on the rotor assembly.
Description
Technical Field
The utility model relates to the technical field of pumps, in particular to a split water pump.
Background
Although the existing water pumps can realize water-electricity separation, rotor assemblies and stator assemblies of the water pumps are often arranged in the same shell, and the structure is relatively complex. Moreover, the rotor assembly in the existing water pump is complex in assembly structure, and is difficult to detach and clean (the surface of the rotor assembly is easy to be covered with scale due to the fact that the rotor assembly rotates at high speed for a long time under the water condition). Based on this, in order to solve the technical problems described above, it is needed to provide a split water pump.
Disclosure of Invention
The utility model aims to solve the technical problem that the water pump can be disassembled and washed conveniently on the premise of reducing the occurrence probability of electric shock events, and provides a split water pump aiming at the problem.
The split water pump comprises a rotor component, an impeller, a pump cover and a base independent of the water tank, wherein the rotor component, the impeller and the pump cover are respectively arranged at the bottom of the water tank;
the water tank comprises a protruding part protruding out of the bottom surface, and a pump cavity with an opening positioned on the bottom surface of the water tank is arranged in the protruding part; the rotor component is assembled in the pump cavity through the opening of the pump cavity; the pump cover is detachably arranged at the opening of the pump cavity, an impeller cavity is formed between the pump cover and the pump cavity, the tail end of the rotating shaft of the rotor assembly extends into the impeller cavity, and the impeller is fixed at the tail end of the rotating shaft of the rotor assembly;
the base comprises a shell and a stator assembly, a rotor cavity is arranged on the shell, the shape and the size of the rotor cavity are matched with those of the protruding part, and an opening of the rotor cavity is positioned at the top of the shell; a stator cavity surrounding or partially surrounding the rotor cavity is formed in the base, and the stator assembly is arranged in the stator cavity.
In one embodiment, the pump cover is provided with a water inlet and a water outlet, the water inlet is positioned in the middle of the pump cover, the water outlet is positioned at the edge of the pump cover, and the difference between the plane of the water outlet and the bottom surface of the pump cover is larger than the difference between the plane of the water inlet and the bottom surface of the pump cover;
the water inlet and the water outlet are both communicated with the impeller cavity, and the impeller sucks external water flow into the impeller cavity from the water inlet in the process of rotating the rotor assembly driven by the stator assembly, and pushes the water flow in the impeller cavity to spray out from the water outlet.
In one embodiment, the middle part of the pump cover is provided with a water baffle, and the water inlet is arranged below the water baffle and surrounds the water baffle.
In one embodiment, the split water pump further comprises a bearing assembly; the bearing assembly comprises a front bearing part which is covered at the opening of the pump cavity and a rear bearing part which is fixed at the bottom of the pump cavity; the two ends of the rotating shaft of the rotor assembly are respectively assembled on the front bearing component and the rear bearing component.
In one embodiment, the side portion of the front bearing member includes a wedge portion located directly below the water outlet.
In one embodiment, the rotor assembly comprises a magnetic ring, the rotating shaft and the magnetic ring are integrally injection molded, the impeller is arranged on the rotating shaft in a tight fit manner, and the front bearing component is sleeved on the rotating shaft and is positioned between the impeller and the magnetic ring.
In one embodiment, the rear bearing component comprises a rear bearing and a rear bearing sleeve sleeved outside the rear bearing, the rear bearing sleeve and the rear bearing are fixed at the bottom of the pump cavity, and the head end of the rotating shaft is assembled on the rear bearing.
In one embodiment, the split water pump further comprises a water passing groove, and the water passing groove is located between the rear bearing and the rear bearing sleeve.
In one embodiment, the tank bottom has a mounting rim disposed around the opening of the pump chamber, and the rim of the pump cap is secured to the mounting rim.
In one embodiment, the split water pump further comprises a PCB board for supplying power to the stator assembly, a power interface and screws, wherein the power interface and screws are arranged on the PCB board, and the PCB board is fixed on the side portion of the stator assembly through the screws.
The utility model has the beneficial effects that: the split type water pump comprises the water tank and the base independent of the water tank, and the rotor cavity is formed in the base and is wrapped or partially wrapped by the stator assembly to realize water-electricity separation of the split type water pump, so that an electric shock event is avoided to the greatest extent. And the rotor assembly is driven to be detached from the pump cavity by the drawing-out rotating shaft, so that the staff can conveniently clean the scale on the rotor assembly.
Drawings
FIG. 1 is an exploded view of a split water pump according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a split water pump according to an embodiment of the present utility model;
fig. 3 is a sectional view showing a separated state of a water tank and a base in a split type water pump according to an embodiment of the present utility model.
Reference numerals:
1-a split water pump;
2-a water tank; 20-a protrusion; 21-a pump cover; 210-a water inlet; 211-water outlet; 212-a water baffle; 22-impeller cavity; 220-wedge face; 23-impeller; 24-mounting edge;
3-a base; 30-a housing; 300-rotor cavity; 301-a rotor assembly; 3010-a spindle; 3011-a front bearing component; 3012-a rear bearing member; 3012 a-a rear bearing; 3012 b-rear bearing sleeve; 31-a stator assembly; 310-a PCB board; 311-screws; 32-a power interface; 33-stator cavity;
4-a pump chamber; 41-water passing tank.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 and 2, the present utility model provides a split type water pump 1 which can be applied not only to other devices as a component but also to individual devices, for example, the split type water pump 1 is mainly applied to a pet water fountain (applied to other devices as a component), an aquarium water pump (used individually), and the like. That is, the split water pump 1 can be independently implemented, produced, used and sold.
The split water pump 1 of the present utility model comprises a rotor assembly 301, an impeller 23, a pump cover 21 and a base 3 independent of the water tank 2, which are respectively mounted to the bottom of the water tank 2; when the split water pump 1 is used as an aquarium water pump, the surfaces of the water tank 2 and the base 3 need to be maintained regularly, i.e., scale is removed regularly, due to long-term operation under water conditions. Of course, this is determined by the working environment of the split water pump 1. Specifically, the pump cover 21 may have a substantially "L" shape. In other embodiments, the shape of the pump cap 21 is not limited. More specifically, the water tank 2 includes a protruding portion 20 protruding from the bottom surface and having a hollow inside, and it is apparent that a pump cover 21 is fitted over the top of the protruding portion 20 so that the inner cavity (refer to the following for details) of the protruding portion 20 is relatively closed, thereby facilitating restriction of the flow direction of the water flow in the split type water pump 1. The shape of the protruding portion 20 may be a substantially hollow column shape with a closed bottom. In other embodiments, the shape of the protrusion 20 is not limited. And the pump cavity 4 with an opening positioned at the bottom surface of the water tank 2 is arranged in the protruding part 20; the rotor assembly 301 fits into the pump chamber 4 through the opening of the pump chamber 4, that is, the rotor assembly 301 can also be drawn out of the pump chamber 4 through the opening of the pump chamber 4. Because the split water pump 1 of the present utility model is used for pressurizing the water flow, that is, the rotor assembly 301 works for a long time under the water condition to enable the surface of the rotor assembly 301 to be fully covered with scale, the rotor assembly 301 is convenient for the staff to clean after being pulled out (or removed).
Referring to the foregoing, and more specifically, in order to facilitate the separation of the pump cover 21 with the water tank 2 in the non-operating state of the split type water pump 1, the pump cover 21 is detachably mounted at the opening of the pump chamber 4, and an impeller chamber 22 is formed between the pump cover 21 and the pump chamber 4, that is, the impeller chamber 22 is located above the pump chamber 4. The end of the rotating shaft 3010 of the rotor assembly 301 extends into the impeller cavity 22, the impeller 23 is fixed at the end of the rotating shaft 3010 of the rotor assembly 301, that is, the central axis of the impeller 23 coincides with the central axis of the impeller cavity 22 (refer to the foregoing), so that the impeller 23 rotates along with the rotor assembly 301 through the rotating shaft 3010 of the rotor assembly 301 and is located in the central area of the impeller 23 (the central area is about any point on the central axis of the impeller 23, the area surrounded by a cylinder with the length of the impeller 23 as a radius and the maximum height of the impeller cavity 22 as a height), and the area between the outer side of the impeller 23 and the inner wall of the impeller cavity 22 is a high-pressure area, so that external water is sucked into the impeller cavity 22 through the negative-pressure area, and water is pressurized, for example, the pressurized water is discharged from the water fountain uninterruptedly by pressurizing the water fountain, so that the situation that pets cannot drink too little water is avoided.
The shape and structure of the base 3 will be described below, and specifically, the shape of the base 3 is substantially rectangular parallelepiped. In other embodiments, the shape of the base 3 is not limited. Wherein, the base 3 comprises a shell 30 and a stator assembly 31 sleeved in the shell 30, a rotor cavity 300 for accommodating the rotor assembly 301 is arranged on the shell 30, and an opening of the rotor cavity 300 is positioned at the top of the shell 30; it is apparent that the protrusion 20 of the bottom of the water tank 2 can be inserted into the rotor chamber 300 so that the rotor assembly 301 in the pump chamber 4 is placed in the rotor chamber 300.
The base 3 is provided with a rotor chamber 300 and a stator chamber 33 which surrounds or partially surrounds the rotor chamber 300 or the pump chamber 4, and obviously, the opening of the pump chamber 4 is opposite to the opening of the stator chamber 33. Wherein the stator assembly 31 is installed in the stator cavity 33, such that when the protrusion 30 of the water tank 2 is inserted into the turn-from cavity 300, the stator assembly 31 and the rotor assembly 301 are both positioned in the base 3 and separated by the cavity wall of the pump cavity 4, so as to realize the water-electricity separation in the split type water pump 1, thereby reducing the probability of electric shock event. Furthermore, it should be noted that, in this specific embodiment, when the protrusion 20 at the bottom of the water tank 2 is inserted into the rotor cavity 300 and the rotor assembly 301 is disposed in the pump cavity 4, the stator assembly 31 is disposed adjacent to the rotor assembly 301, where the stator assembly 31 may include a magnetic field coil, and the rotor assembly 301 may include a permanent magnet (i.e., a magnetic ring formed by the permanent magnet), so that the magnetic field generated by the magnetic field coil when energized and driving the rotor assembly 301 to rotate, and the impeller 23 follows the rotor assembly 301 to rotate, thereby implementing pumping of water.
The position of the rotor chamber 300 will be described in detail, and the rotor chamber 300 is formed between the plane in which the opening of the housing 30 is located and the plane in which the horizontal line is located at any position of the base 3. The plane in which the horizontal line at any position is located is defined as any plane between the top surface (i.e., the plane in which the opening of the pump chamber 4 is located) and the bottom surface of the housing 30. Of course, the plane in which any location is located also includes the bottom surface of the housing 30. In this embodiment, the housing 30 is recessed from the top surface and extends to the bottom surface to form the rotor cavity 300. More specifically, to facilitate rotation of the rotor assembly 301 within the pump chamber 4, the shape and size (e.g., radius) of the rotor chamber 300 is adapted to the shape and size (e.g., radius) of the protrusion 20.
The utility model has the advantages that the split water pump 1 is separated from the stator cavity 33 by separating the pump cavity 4 from the stator cavity 33 on the base 3 independent of the water tank 2, referring to fig. 3, and when the water tank 2 is separated from the base 3, the rotor assembly 301 leaves the rotor cavity 300 of the base 3, namely, the rotor assembly 301 leaves the range of the magnetic field action of the stator assembly 31, so that the rotor assembly 301 stops rotating, and the split water pump 1 stops working. In summary, when the water tank 2 is lifted up to separate the water tank 2 from the base 3, the split type water pump 1 stops operating.
In one embodiment, the pump cover 21 is provided with a water inlet 210 and a water outlet 211 so as to attract water flow into the split water pump 1 and is pressed to the water flow to be ejected or sprayed out from the split water pump 1 after being pressurized by the split water pump 1. Referring to the foregoing, since the impeller 23 rotates to form a low pressure region in the middle region of the impeller 23 and a high pressure region between the vane ends of the impeller 23 and the inner wall of the impeller chamber 22, the water inlet 210 is preferably disposed in the middle of the pump cover 21, the water outlet 211 is positioned at the edge of the pump cover 21, and in order to adapt the pressure characteristics of the water flow in different regions (corresponding to the foregoing, the low pressure water flow is positioned in the low pressure region and the high pressure water flow is positioned in the high pressure region), the difference between the plane of the water outlet 211 and the bottom surface of the pump cover 21 is greater than the difference between the plane of the water inlet 210 and the bottom surface of the pump cover 21, so that the water flow flowing through the rotor chamber 300 forms a water circulation between the water inlet 210 and the water outlet 211.
Both the water inlet 210 and the water outlet 211 are connected to the impeller chamber 22, that is, the water inlet 210 and the water outlet 211 are sequentially connected to the impeller chamber 22 and the pump chamber 4 (it should be noted that the rotor chamber 300 includes the impeller chamber 22, the rotor chamber 300 further includes the pump chamber 4, and the area of the impeller chamber 22 is not overlapped with the area of the pump chamber 4), and the impeller 23 sucks the external water flow into the impeller chamber 22 and the pump chamber 4 from the water inlet 210 (the water flow firstly enters the impeller chamber 22 and then enters the pump chamber 4 from the impeller chamber 22), and pushes the water flow in the impeller chamber 22 and the pump chamber 4 to be ejected or gushed out from the water outlet 211 during rotation of the rotor assembly 301 driven to rotate by the stator assembly 31. Specifically, the water inlet 210 and the water outlet 211 are circular holes. In other embodiments, the shapes of the water inlet 210 and the water outlet 211 are not limited. For example, both the water inlet 210 and the water outlet 211 may also be square holes.
In one embodiment, the middle portion of the pump cover 21 has a water baffle 212, and the water inlet 210 is positioned below the water baffle 212 and around the water baffle 212 to prevent vortex flow during the flow of water from the water inlet 210 into the impeller chamber 22 (specifically, the low pressure region).
In one particular embodiment, the split water pump 1 further includes a bearing assembly for mounting the shaft 3010 of the rotor assembly 301; the bearing assembly comprises a front bearing part 3011 capped at the opening of the rotor cavity 300 (the front bearing part 3011 comprises a front bearing cap and a front bearing), and a rear bearing part 3012 fixed at the bottom of the pump cavity 4; both ends of the rotating shaft 3010 of the rotor assembly 301 are fitted to the front bearing member 3011 and the rear bearing member 3012, respectively, to achieve the mounting of the rotating shaft in the rotor assembly 301.
In one embodiment, the front bearing component 3011 includes a front bearing and a front bearing cover that fits over the front bearing. The side surface of the front bearing component 3011 (specifically, the front bearing cover) further comprises a wedge surface 220, the wedge surface 220 is located right below the water outlet 211, the water flow in the impeller cavity 22 is pushed to the edge of the impeller cavity 22 by the impeller 23, and the water flow can flow upwards along the wedge surface 220, so that the water flow is conveniently sprayed or gushed out from the water outlet. Of course, in practical applications, the wedge portion 220 may be disposed at the bottom of the water tank 2.
In one embodiment, the rotor assembly 301 includes a magnetic ring in addition to the rotating shaft 3010, and the rotating shaft 3010 and the magnetic ring are integrally injection molded, the impeller 23 is mounted on the rotating shaft 3010 in a tight fit manner, and the front bearing component 3011 is sleeved on the rotating shaft 3010 and is located between the impeller 23 and the magnetic ring. Because the rotary shaft 3010 is integrated with the magnetic ring, not only is the structure of the rotor assembly 3010 simplified, but also the rotor assembly 3010 is conveniently taken out of the pump chamber 4, so that the cleaning operation of the rotor assembly 3010 is facilitated.
In one embodiment, the rear bearing component 3012 includes a rear bearing 3012a and a rear bearing sleeve 3012b sleeved outside the rear bearing 3012a, and the rear bearing 3012a is disposed at the head end of the rotating shaft 3010, so as to prevent the phenomenon that the center of gravity of the rotating shaft 3010 is shifted when the rotating shaft 3010 drives the rotor set to vibrate in the rotating process.
In one embodiment, the split water pump 1 further includes a water passing groove 41, and the water passing groove 41 is located between the rear bearing 3012a and the rear bearing sleeve 3012b, where the water passing groove 41 can prevent abnormal noise generated by bubbles entering the rear bearing 3012a during the rotation process of the rotor assembly 301 driven by the rotating shaft 3010. Specifically, the shape of the water passing groove 41 may be cylindrical, limited to the shape of the pump chamber 4. In other embodiments, the shape of the water tub 41 is not limited. For example, when the pump chamber 4 has a rectangular parallelepiped shape, the water passing groove 41 may have a rectangular parallelepiped shape or a square shape.
In one embodiment, the tank bottom has a mounting rim 24, the rim 24 being disposed around the opening of the pump chamber 4, and the rim of the pump cover 21 being secured to the rim 24 so as to facilitate the sealing of the pump cover 21 to the opening of the pump chamber 4 to form the impeller chamber 22. For example, the edge of the pump cap 21 may be secured to the mounting rim 24 by a snap fit or the like.
In one embodiment, the split water pump 1 further includes a PCB 310 for supplying power to the stator assembly 31, a power interface 32 and screws disposed on the PCB 310, and the PCB 310 is fixed to a side portion of the stator assembly 31 by the screws. Obviously, the power interface 32 herein is a removable interface.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (10)
1. The split water pump is characterized by comprising a rotor assembly, an impeller, a pump cover and a base, wherein the rotor assembly, the impeller and the pump cover are respectively arranged at the bottom of a water tank;
the water tank comprises a protruding part protruding out of the bottom surface, and a pump cavity with an opening positioned on the bottom surface of the water tank is arranged in the protruding part; the rotor component is assembled in the pump cavity through the opening of the pump cavity; the pump cover is detachably arranged at the opening of the pump cavity, an impeller cavity is formed between the pump cover and the pump cavity, the rotor assembly comprises a rotating shaft, the tail end of the rotating shaft extends into the impeller cavity, and the impeller is fixed at the tail end of the rotating shaft;
the base comprises a shell and a stator assembly, a rotor cavity is arranged on the shell, the shape and the size of the rotor cavity are matched with those of the protruding part, and an opening of the rotor cavity is positioned at the top of the shell; a stator cavity surrounding or partially surrounding the rotor cavity is formed in the base, and the stator assembly is arranged in the stator cavity.
2. The split water pump according to claim 1, wherein the pump cover is provided with a water inlet and a water outlet, the water inlet is positioned in the middle of the pump cover, the water outlet is positioned at the edge of the pump cover, and the difference between the height of the plane of the water outlet and the bottom surface of the pump cover is larger than the difference between the height of the plane of the water inlet and the bottom surface of the pump cover;
the water inlet and the water outlet are both communicated with the impeller cavity, and the impeller sucks external water flow into the impeller cavity from the water inlet in the process of rotating the rotor assembly driven by the stator assembly, and pushes the water flow in the impeller cavity to spray out from the water outlet.
3. The split water pump of claim 2, wherein the pump cover has a water baffle in the middle, and the water inlet is located below and around the water baffle.
4. The split water pump of claim 2, further comprising a bearing assembly; the bearing assembly comprises a front bearing part which is covered at the opening of the pump cavity and a rear bearing part which is fixed at the bottom of the pump cavity; the two ends of the rotating shaft of the rotor assembly are respectively assembled on the front bearing component and the rear bearing component.
5. The split water pump of claim 4, wherein the front bearing member comprises a front bearing cap and the side of the front bearing cap comprises a wedge portion located directly below the water outlet.
6. The split water pump as claimed in claim 4, wherein the rotor assembly comprises a magnetic ring, the shaft and the magnetic ring are integrally injection molded, the impeller is mounted on the shaft in a tight fit manner, and the front bearing member is sleeved on the shaft and is located between the impeller and the magnetic ring.
7. The split water pump as claimed in claim 4, wherein the rear bearing part comprises a rear bearing and a rear bearing housing sleeved outside the rear bearing, the rear bearing housing and the rear bearing are fixed at the bottom of the pump chamber, and the head end of the rotating shaft is assembled on the rear bearing.
8. The split water pump of claim 7, further comprising a water passing trough, and wherein the water passing trough is located between the rear bearing and rear bearing housing.
9. The split water pump of claim 1, wherein the tank bottom has a mounting rim disposed around the opening of the pump cavity, the rim of the pump cover being secured to the mounting rim.
10. The split water pump of any one of claims 1-9, further comprising a PCB board for powering the stator assembly, a power interface and screws disposed on the PCB board, the PCB board being secured to a side of the stator assembly by the screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321315251.XU CN219993950U (en) | 2023-05-26 | 2023-05-26 | Split type water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321315251.XU CN219993950U (en) | 2023-05-26 | 2023-05-26 | Split type water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219993950U true CN219993950U (en) | 2023-11-10 |
Family
ID=88612962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321315251.XU Active CN219993950U (en) | 2023-05-26 | 2023-05-26 | Split type water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219993950U (en) |
-
2023
- 2023-05-26 CN CN202321315251.XU patent/CN219993950U/en active Active
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