CN219691730U - Water pump power assembly and sprayer - Google Patents
Water pump power assembly and sprayer Download PDFInfo
- Publication number
- CN219691730U CN219691730U CN202222842384.4U CN202222842384U CN219691730U CN 219691730 U CN219691730 U CN 219691730U CN 202222842384 U CN202222842384 U CN 202222842384U CN 219691730 U CN219691730 U CN 219691730U
- Authority
- CN
- China
- Prior art keywords
- water pump
- driving motor
- pump
- power assembly
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 description 26
- 230000008859 change Effects 0.000 description 18
- 238000013016 damping Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a water pump power assembly and a sprayer, which comprises a water pump, a driving motor and a controller, wherein the driving motor drives the water pump so as to enable a movable part in the water pump to move, thereby enabling liquid to enter from a water inlet of the water pump and be discharged from a water outlet; in addition, the product and equipment provided with the water pump can be prevented from generating resonance, so that the noise pollution of the product and equipment is greatly improved.
Description
Technical Field
The utility model relates to the technical field of water pumps, in particular to a water pump power assembly and a sprayer.
Background
The water pump is a commonly used pumping pressurizing member, and can perform a pumping and pressurizing operation of a liquid such as water by a reciprocating motion of a member such as a diaphragm in the pump.
At present, the output pressure of a small sprayer is generally lower, for example, the general working pressure is about 0.1MPa, a nozzle with the aperture of 1.2mm is used, fog drops are thicker, the water consumption is large, and if a nozzle with the aperture of 0.5mm is used, the spraying effect is poor, even no atomization is caused; only through improving water pump operating pressure, improve the operating pressure of water pump and need improve the rotational speed of water pump, bigger noise and the resonance noise that the potential produced, very big influence use experience.
At present, a control method for reducing noise of a water pump is to add a damping part, for example, chinese patent CN201921006079.3 discloses a diaphragm pump damping seat, which is characterized in that a hollow damping seat is arranged on a mounting seat, multiple outer rings and supporting ribs are arranged on the upper outer wall of the damping seat, the mounting seat is mounted on a station through the multiple outer rings and the supporting ribs, multistage buffering damping is realized, the damping is matched with the mounting seat for use, multiple damping of the water pump is realized, a better damping effect is generated, vibration generated by the water pump in the working process is reduced, resonance with equipment is avoided, and vibration and noise of the whole machine are reduced.
For another example, chinese patent CN201910924804.3 discloses a pneumatic diaphragm pump sealing device: the embodiment of the utility model is provided with the buffer component, so that the pneumatic diaphragm pump can be protected, the phenomenon that elements in the shell resonate is avoided, the normal operation of the pneumatic diaphragm pump is further ensured, the buffer component is further limited by the connecting component, and the buffer component is prevented from falling off.
Above prior art all reaches the purpose of noise reduction through improvement damping part, and then different pump types need design different damping part, increase the volume of product, have increased spare part quantity, need change the inner structure of current water pump even.
Disclosure of Invention
The utility model provides a water pump power assembly and a sprayer, which can reduce the running noise of a water pump by adjusting the rotating speed of a water pump driving motor, adapt to water pumps with various materials and structures, and avoid the resonance noise of products and equipment provided with the water pump.
In a first aspect, the present utility model provides a water pump power assembly comprising a water pump, a drive motor, and a controller;
the driving motor drives the water pump so that a moving part inside the water pump moves, liquid enters from a water inlet of the water pump and is discharged from a water outlet, and the controller is electrically connected with the driving motor, wherein the controller is used for adjusting the rotating speed of the driving motor so that the vibration frequency changes, and therefore noise generated when the water pump operates is reduced.
Optionally, the water pump power assembly further comprises: and a motor speed regulating device.
Optionally, the motor adjusting device comprises a voltage regulating device.
Optionally, the voltage regulating device comprises at least one of a pulse width modulation PWM signal generator, a buck resistor, and a power supply module.
Optionally, the power supply module comprises an AC-DC power supply module or a DC-DC power supply module.
Optionally, the water pump is any one of a diaphragm pump, a centrifugal pump, a mixed flow pump, an axial flow pump, a vortex pump and a turbine pump.
Optionally, the driving motor is a direct current motor.
Optionally, the diaphragm pump comprises at least one of: diaphragm, casing, valve.
In a second aspect, the present utility model provides a sprayer comprising a water pump power assembly as described in any one of the preceding.
The water pump power assembly comprises a water pump, a driving motor and a controller, wherein the driving motor drives the water pump so as to enable a movable part in the water pump to move, thereby enabling liquid to enter from a water inlet of the water pump and be discharged from a water outlet, and the controller is electrically connected with the driving motor and is used for adjusting the rotating speed of the driving motor so as to change the vibration frequency, thereby reducing the noise generated when the water pump operates and avoiding the noise generated by the resonance of the internal part and the structure of the water pump; in addition, the product and equipment provided with the water pump can be prevented from generating resonance, so that the noise pollution of the product and equipment is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic flow chart of a control method for reducing noise of a water pump according to an embodiment of the utility model;
FIG. 2 is an exemplary graph of operating voltage versus output pressure for a micro diaphragm pump;
FIG. 3 is a flow chart of a second control method for reducing noise of a water pump according to an embodiment of the utility model;
fig. 4 is a flow chart of a third control method for reducing noise of a water pump according to an embodiment of the utility model;
FIG. 5 is a flow chart of a fourth control method for reducing noise of a water pump according to an embodiment of the present utility model;
fig. 6 is a schematic diagram of a control device for reducing noise of a water pump according to a second embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a power assembly of a water pump according to a third embodiment of the present utility model.
Reference numerals illustrate:
1-a water pump; 2-a driving motor; 3-a controller; 11-a moving part; 12-a liquid inlet; 13-a liquid outlet; 31-PWM signal generator.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Fig. 1 is a flow chart of a control method for reducing noise of a water pump according to an embodiment of the utility model. According to the control method for reducing the noise of the water pump, the driving motor is arranged in the applied water pump, so that the internal parts of the water pump can be driven to move, and the liquid is drawn and discharged. As shown in fig. 1, the control method for reducing noise of a water pump provided in this embodiment may specifically include the following steps:
s101, controlling the driving motor to rotate.
S102, adjusting the rotating speed of the driving motor to enable the vibration frequency of the water pump to change, so that the noise of the water pump is reduced.
When the water pump works, the driving motor in the water pump can rotate and can drive the moving parts in the water pump to move. Therefore, when the driving motor rotates, corresponding vibration is generated by driving the internal parts of the water pump, even the water pump shell and the like to different degrees to generate running noise, and the rotation speed of the driving motor is reduced, so that the rotation speed of the driving motor is reduced, and the pressure reduction range is within a preset range, so that the working noise is reduced to the minimum when the required working pressure is reached to ensure the output pressure. For example, the rotation speed of the driving motor is in a proportional relation with the operation voltage, for example, fig. 2 is an exemplary graph of the operation voltage of the micro diaphragm pump with the output pressure, and as shown in fig. 2, the curve between 3.5V and 5V is quite bare, that is, the voltage of the driving motor starts to increase very little from 3.5V to 3.5V, so that the rotation speed of the driving motor can be reduced, the vibration frequency of the water pump is reduced, and thus the noise is reduced.
Specifically, because the components in the water pump and the shell structure of the water pump have certain shapes and masses, corresponding different components and structures have corresponding natural frequencies, when an external vibration source vibrates at the natural frequencies or frequencies similar to the natural frequencies, the components and the structures are driven to generate resonance, so that larger noise is generated, and in order to avoid resonance, the frequency of the vibration source is changed by adjusting the rotating speed of the driving motor, so that the vibration frequency of the driving motor is outside the natural frequency range of the components and the structures in the water pump, and the generation of the noise is greatly reduced; in the same way, in the products and equipment provided with the water pump, the frequency of the vibration source is changed by adjusting the rotating speed of the driving motor, and the vibration frequency of the driving motor is outside the natural frequency range of the structure (such as a shell) of the products or equipment, so that the noise is greatly reduced, and the noise pollution of the products and the equipment is improved. Fig. 3 is a flow chart of a second control method for reducing noise of a water pump according to an embodiment of the utility model. As shown in fig. 3, optionally, the step of adjusting the rotation speed of the driving motor to change the vibration frequency of the water pump, thereby reducing the noise of the water pump may specifically include:
s1021, adjusting the rotating speed of the driving motor;
and S1022, enabling the vibration frequency of the water pump to be out of the natural frequency range of the water pump component and the structure, so that the water pump component and the structure are prevented from generating larger noise due to resonance.
The vibration frequency of the water pump is outside the natural frequency range of the parts inside the water pump and the shell structure, and when the water pump rotates under the driving motor, the resonance frequency of the parts inside the water pump and the shell structure is prevented from being matched because the vibration amplitude is greatly enhanced and the noise is also greatly enhanced when resonance is caused.
Specifically, since the types of the water pump are many, for example, the water pump may be any one of a diaphragm pump, a centrifugal pump, a mixed flow pump, an axial flow pump, a vortex pump, and a turbine pump. For different pumps, the inside of the pump is provided with structural components with different structures and shapes, for example, in a normal case, the water pump can be a diaphragm pump, at this time, the structural components of the water pump comprise a diaphragm, a shell, a valve and the like, and the natural vibration frequency of the structural components is outside the vibration frequency range of the driving motor of the water pump, so that the structural components such as the diaphragm, the shell or the valve are prevented from generating resonance under the vibration drive of the water pump.
Because different pumps have different structural components with different structures and shapes, and each pump may also have a plurality of different structural components, the different structural components have different shapes and structures, so when the pumps perform rotation and other movements, the mass and mass center positions of the structural components are different, and thus, different structural components have different natural vibration frequencies. When the water pump vibrates, the natural frequency range of each specific structural component needs to be avoided, so that the resonance condition of the structural components can be prevented. However, in order to take account of the output pressure and other structural components, due to the differences in shape and structure, all structural component resonance frequency ranges cannot be completely avoided, and thus resonance conditions cannot be completely avoided.
Fig. 4 is a flow chart of a third control method for reducing noise of a water pump according to an embodiment of the utility model. As shown in fig. 4, in order to better avoid resonance of the internal structural components of the water pump and other external structural components (such as the housing of the product in which the water pump is installed and other product structures), and reduce the working noise, in the step of adjusting the rotation speed of the driving motor, a specific adjusting method may include the following steps:
s1021a, adjusting the rotating speed of the driving motor so as to enable the rotating speed of the driving motor to periodically change within a preset rotating speed range.
In this way, the rotation speed of the driving motor is not constant, but is periodically changed in different speeds within a preset rotation speed range, for example, the rotation speed range is periodically changed between 70% and 80% of the rated rotation speed, and of course, other rotation speed ranges can be used, which is not limited herein; in the continuous change process of the rotating speed of the driving motor, the vibration frequency of the water pump is correspondingly changed, so that the time for matching the vibration frequency of the water pump with the natural frequency of the corresponding structural component is very short, the structural component is prevented from generating resonance, and the noise is reduced to a greater degree under the condition of ensuring the output pressure.
In general, in order to facilitate adjustment of the vibration frequency of the water pump, the driving motor may be controlled such that the rotation speed of the driving motor is changed from small to large and then from large to small in every change period within a preset rotation speed range of the driving motor. In this way, the vibration frequency of the whole water pump can be circularly changed from low to high and from high to low in each change period. Such a rotational speed adjustment method makes the vibration frequency of the water pump act with the natural frequency of the structural member for a short time in each cycle, and does not cause resonance.
Fig. 5 is a flowchart of a fourth control method for reducing noise of a water pump according to an embodiment of the present utility model. As shown in fig. 5, in order to better avoid resonance of the internal structural components of the water pump and other external structural components (such as the housing of the product in which the water pump is installed and other product structures), and reduce the working noise, in the step of adjusting the rotation speed of the driving motor, a specific adjusting method may also include the following steps:
s1021b, adjusting the rotating speed of the driving motor so that the rotating speed of the driving motor is in non-periodic change within a preset rotating speed range.
In this way, the rotation speed of the driving motor is not constant, but randomly and non-periodically changed within a preset rotation speed range, for example, the rotation speed range randomly changes between 80% and 90% of the rated rotation speed, and of course, other rotation speed ranges can be used, which is not limited herein; in the continuous change process of the rotating speed of the driving motor, the vibration frequency of the water pump is correspondingly changed, so that the time for matching the vibration frequency of the water pump with the natural frequency of the corresponding structural component is very short, the structural component is prevented from generating resonance, and the noise is reduced to a greater degree under the condition of ensuring the output pressure.
Specifically, when the rotation speed of the driving motor is adjusted so that the rotation speed of the driving motor is periodically or aperiodically changed, the steps may specifically include: the rotation speed of the driving motor is regulated by changing the working voltage of the driving motor so as to cause the rotation speed of the driving motor to change periodically or aperiodically.
The rotation speed of the driving motor can be changed in various ways, for example, since the driving motor is generally a direct current motor, the rotation speed of the driving motor can be adjusted by changing the working voltage of the driving motor, so that the rotation speed of the driving motor changes periodically or aperiodically. When the working voltage of the direct current motor is increased, the rotating speed of the motor is increased; when the working voltage of the direct current motor is reduced, the rotating speed of the direct current motor is correspondingly reduced. Therefore, the rotating speed range of the driving motor can be freely adjusted by changing the working voltage of the driving motor, so that the whole water pump can generate vibration with different frequencies.
It should be noted that, the rotation speed adjustment is performed by changing the working voltage of the driving motor, and only a preferred implementation manner is shown, and other rotation speed adjustment methods, such as changing the power frequency, changing the magnetic field of the driving motor, etc., may also be applied to the control method for reducing the noise of the water pump in the present embodiment, which is not limited thereto.
Further, there are various ways of changing the operating voltage of the driving motor. Specifically, the step of adjusting the rotation speed of the driving motor by changing the operation voltage of the driving motor may include:
the operating voltage of the drive motor is varied by a pulse width modulation (Pulse Width Modulation, PWM) signal to regulate the rotational speed of the drive motor.
Wherein the PWM signal is typically provided by a controller that drives the motor. The controller can form voltages with different amplitude values by outputting PWM signals with different widths, so that different working voltages can be provided for the driving motor. Under the driving of different working voltages, the rotating speed of the driving motor can be correspondingly changed, so that vibration with different frequencies is generated.
In this embodiment, the control method for reducing the noise of the water pump includes the following steps: controlling the rotation of the driving motor, and adjusting the rotation speed of the driving motor to change the vibration frequency of the water pump, so that the noise of the water pump is reduced, and the larger noise generated by the resonance of internal components and structures of the water pump is avoided; in addition, the resonance of the product and the equipment provided with the water pump can be avoided, so that the noise pollution of the product and the equipment is greatly improved.
Based on the same inventive concept, the embodiment of the utility model also provides a control device for reducing the noise of the water pump, and because the principle of the problem solved by the device is similar to that of the control method for reducing the noise of the water pump, the implementation of the device can refer to the implementation of the method, and the repetition is omitted.
Fig. 6 is a schematic diagram one of a control device for reducing noise of a water pump according to a second embodiment of the present utility model, as shown in fig. 6, where the control device for reducing noise of a water pump according to the second embodiment of the present utility model includes:
a driving module 21 for controlling the rotation of the driving motor;
and the adjusting module 22 is used for adjusting the rotating speed of the driving motor to change the vibration frequency of the water pump, so that the noise of the water pump is reduced.
In particular, the adjustment module 22, in particular for,
adjusting the rotating speed of the driving motor;
the vibration frequency of the water pump is outside the natural frequency range of the water pump component and the structure, so that the resonance of the water pump component and the structure is avoided to generate larger noise.
Further, the adjustment module 22 is provided, in particular also for,
and adjusting the rotating speed of the driving motor so as to periodically change the rotating speed of the driving motor within a preset rotating speed range.
Further, the adjustment module 22 is provided, in particular also for,
and adjusting the rotating speed of the driving motor so that the rotating speed of the driving motor is in a non-periodic change within a preset rotating speed range.
Specifically, the adjusting module 22 is further specifically configured to adjust the rotation speed of the driving motor by changing the operating voltage of the driving motor, so as to make the rotation speed of the driving motor periodically or aperiodically change.
Further, the adjusting module 22 is specifically configured to adjust the rotation speed of the driving motor by changing the operation voltage of the driving motor, and is specifically configured to change the operation voltage of the driving motor by a pulse width modulation PWM signal to adjust the rotation speed of the driving motor.
In summary, the beneficial effects achieved by the control device for reducing noise of the water pump according to the second embodiment of the present utility model are similar to those of the first embodiment of the present utility model, and will not be described herein.
Fig. 7 is a schematic structural diagram of a power assembly of a water pump according to a third embodiment of the present utility model. The water pump power assembly in this embodiment can execute the control method for reducing the noise of the water pump in the first embodiment, so as to reduce the running noise of the water pump by adjusting the rotation speed of the driving motor of the water pump, adapt to water pumps with various materials and structures, and avoid the resonance noise of products and equipment provided with the water pump. Specifically, as shown in fig. 5, the water pump power assembly of the present embodiment may include a water pump 1, a driving motor 2, a controller 3, and the like.
The water pump 11 comprises a moving part 11, the driving motor 2 is generally connected with the moving part 11, and when the driving motor 2 rotates, the moving part 11 can be driven to move, so that liquid enters from the liquid inlet 12 and is discharged from the liquid outlet 13, and the liquid conveying work is completed; the controller 3 is electrically connected with the driving motor 2, and adjusts the rotation speed of the driving motor 2 so as to change the vibration frequency, thereby reducing the noise generated when the water pump 1 operates.
The controller 3 includes a motor speed regulator for regulating the rotation speed of the driving motor 2, and when the rotation speed of the driving motor 2 is regulated, in order to control the rotation speed, a voltage regulator is generally adopted to control the working voltage of the driving motor 2, and the working voltage of the driving motor 2 can be controlled by a PWM wave. At this time, the controller 3 of the water pump power assembly may include a PWM signal generator 31. The PWM signal generator 31 can generate PWM signals with different widths to realize different operating voltages, so as to drive the driving motor 2 to operate at different rotational speeds. The driving motor 2 is controlled by adopting PWM signals, so that digital control can be realized, and the controller 3 can also be realized by adopting corresponding digital modules and circuits.
In addition, the working voltage of the driving motor 2 can also be regulated by a step-down resistor and a power supply module; the power supply module may be an AC-DC power supply module or a DC-DC power supply module.
Specifically, the water pump 1 in the water pump power assembly may be a common water pump structure, for example, the water pump 1 may be any one of a diaphragm pump, a centrifugal pump, a mixed flow pump, an axial flow pump, a vortex pump, and a turbine pump, so long as the water pump 1 can perform normal liquid extraction and addition operation. Because the specific structures of the water pumps are different, correspondingly, the water pump 1 is internally provided with structural components with different structures and shapes, for example, in the embodiment, the water pump 1 in the water pump power assembly can be a diaphragm pump, and at this time, the structural components of the water pump 1 are a diaphragm, a shell, a valve or the like. Taking a diaphragm as an example, when the driving motor 2 rotates, the diaphragm and other parts of the water pump 1 move continuously, and accordingly certain vibration is generated. When the vibration of the diaphragm reaches or approaches the natural frequency of the diaphragm, the resonance between the diaphragm and the driving motor 2 is caused, so that the vibration amplitude is greatly enhanced, and larger noise is generated.
Further, the embodiment of the utility model also provides a sprayer, which comprises the water pump power assembly according to any one of the third embodiment of the utility model.
It will be appreciated that the integrated units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a corresponding one of the computer readable storage media, and based on such understanding, the present utility model implements all or part of the flow of the corresponding embodiment method described above, or may be implemented by means of a computer program to instruct the relevant hardware, where the computer program may be stored in a computer readable storage medium, which when executed by a processor, may implement the steps of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, randomAccess Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
Those skilled in the art will appreciate that the drawing is merely a schematic representation of one preferred embodiment and that the modules or processes in the drawing are not necessarily required to practice the utility model.
Those skilled in the art will appreciate that modules in an apparatus of an embodiment may be distributed in an apparatus of an embodiment as described in the embodiments, and that corresponding changes may be made in one or more apparatuses different from the present embodiment. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. The water pump power assembly is characterized by comprising a water pump, a driving motor and a controller;
the driving motor drives the water pump so that a moving part inside the water pump moves, liquid enters from a water inlet of the water pump and is discharged from a water outlet, and the controller is electrically connected with the driving motor, wherein the controller is used for adjusting the rotating speed of the driving motor so that the vibration frequency changes, and therefore noise generated when the water pump operates is reduced.
2. The water pump power assembly of claim 1, wherein the controller includes a motor governor.
3. The water pump power assembly of claim 2, wherein the motor speed regulator includes a pressure regulator.
4. The water pump power assembly of claim 3, wherein said voltage regulating means comprises at least one of a pulse width modulated PWM signal generator, a buck resistor, and a power module.
5. The water pump power assembly of claim 4, wherein the power module comprises an AC-DC power module or a DC-DC power module.
6. The water pump power assembly of any one of claims 1-5, wherein the water pump is any one of a diaphragm pump, a centrifugal pump, a mixed flow pump, an axial flow pump, a vortex pump, and a turbine pump.
7. The water pump power assembly of claim 6, wherein said drive motor is a direct current motor.
8. The water pump power assembly of claim 6, wherein the diaphragm pump comprises at least one of: diaphragm, casing, valve.
9. A sprayer comprising a water pump power assembly according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222842384.4U CN219691730U (en) | 2022-10-27 | 2022-10-27 | Water pump power assembly and sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222842384.4U CN219691730U (en) | 2022-10-27 | 2022-10-27 | Water pump power assembly and sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219691730U true CN219691730U (en) | 2023-09-15 |
Family
ID=87941947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222842384.4U Active CN219691730U (en) | 2022-10-27 | 2022-10-27 | Water pump power assembly and sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219691730U (en) |
-
2022
- 2022-10-27 CN CN202222842384.4U patent/CN219691730U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5335433B2 (en) | Diaphragm type circulation machine | |
| CN106163839B (en) | Hydraulic antivibration device equipped with power generator and the power generator for the vibration abatement | |
| CN203146436U (en) | Computer system and fan controller | |
| CN219691730U (en) | Water pump power assembly and sprayer | |
| JP5127324B2 (en) | Fan motor speed control circuit, fan device, electronic equipment | |
| US20140000664A1 (en) | Washing apparatus and drain pump | |
| US9641066B2 (en) | Switching regulator circuit/process counting clock cycles after regulator comparator change | |
| EP0834984B1 (en) | Method for reducing acoustic and vibration energy radiated from rotating machines | |
| CN103219940A (en) | Suppression method of electromotor vibration | |
| KR20160024336A (en) | A linear compressor, controlling apparatus and method for the same | |
| CN117989119A (en) | Control method and device for reducing noise of water pump, water pump power assembly and sprayer | |
| US6483265B1 (en) | Methods and systems for minimizing vibration in electric machines | |
| AU2019101451B4 (en) | Control system | |
| CN106849832A (en) | The method for noise reduction control and device of electric machine control system and its frequency converter | |
| US6428289B1 (en) | Automated pump | |
| US20190081620A1 (en) | Spectral spread for electric motor | |
| CN107076128B (en) | The chemicals dosing plant of the clean method of water pump, water pump power component and agriculture unmanned plane | |
| KR102304112B1 (en) | A sound emitter | |
| JPH10176649A (en) | Wave activated turbine power generator by pole change induction generator and operating method therefor | |
| JP2007168177A (en) | Servo power supply device of electromotive injection molding machine and control method for servo power supply device of electromotive injection molding machine | |
| CN110943671B (en) | Motor signal control method, terminal equipment and storage medium | |
| JP2010136527A (en) | Device and method for controlling speed of supersonic motor and program | |
| CN102006036B (en) | Generation method of spread spectrum clock dither signal | |
| US8698440B2 (en) | Low frequency drive control circuit and method for driving an inductive load | |
| JP2004180479A (en) | Cooling structure for motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |