Water pump structure

Abstract

The water pump structure comprises a shell, an impeller, a motor and a rotary disc, the shell comprises a water storage cavity and a power cavity which are isolated from each other, the impeller is rotatably installed in the water storage cavity, the motor is installed in the power cavity, and the rotary disc is installed on an output shaft of the motor and coaxially arranged corresponding to the impeller; the side, close to the rotary disc, of the impeller is provided with a first magnetic attraction piece, and the rotary disc is provided with a second magnetic attraction piece magnetically attracted to the first magnetic attraction piece. According to the water pump structure provided by the utility model, the motor and the impeller are respectively arranged in the water storage cavity and the power cavity which are isolated from each other, so that the problem of water seepage of the motor is fundamentally solved; by means of non-contact transmission of the magnetic attraction part, the problems of abrasion and leakage of a traditional shaft seal structure are solved, the reliability of the water pump is improved, and the service life of the water pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fluid machinery technology, and in particular to a water pump structure. Background Technology

[0002] As a core power component, the reliability of the water pump in small household appliances directly affects the overall performance of the appliance. Existing water pumps for small household appliances typically connect the motor directly to the impeller, with the motor driving the impeller to rotate and thus propelling the water flow. However, water can easily enter the motor housing through the motor's output shaft, leading to insulation failure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the issue that water flow can easily enter the motor cavity through the motor's output shaft, leading to insulation failure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a water pump structure, including a housing, an impeller, a motor, and a turntable. The housing includes a water storage cavity and a power cavity that are isolated from each other. The impeller is rotatably installed in the water storage cavity. The motor is installed in the power cavity. The turntable is installed on the output shaft of the motor and is coaxially arranged with respect to the impeller. A first magnetic attraction element is provided on the side of the impeller near the turntable. The turntable is provided with a second magnetic attraction element that is magnetically attracted to the first magnetic attraction element.

[0005] Furthermore, the impeller includes a magnetic chuck and fan blades mounted on the magnetic chuck, with the first magnetic chuck mounted on the side of the magnetic chuck closer to the turntable.

[0006] Furthermore, the number of the first magnetic attractor and the number of the second magnetic attractor are equal and both are multiple.

[0007] Furthermore, the magnetic poles of two adjacent first magnetic attractors face opposite directions.

[0008] Furthermore, it also includes a pump body, which is installed in the water storage cavity, and the impeller is rotatably installed in the pump body.

[0009] Furthermore, the pump body is detachably installed within the water storage chamber.

[0010] Furthermore, the pump body is provided with a concentric rotating shaft, and the impeller is rotatably mounted on the concentric rotating shaft. The concentric rotating shaft is connected to the housing, and the central axis of the concentric rotating shaft coincides with the central axis of the output shaft of the motor.

[0011] Furthermore, the pump body is provided with a first anti-friction pad at the position corresponding to the impeller.

[0012] Furthermore, the housing is provided with a second anti-friction pad at the position corresponding to the impeller.

[0013] Furthermore, the motor is also provided with a flange, which is connected to the housing.

[0014] The beneficial effects of this utility model are as follows: The water pump structure provided by this utility model fundamentally solves the problem of motor water leakage by setting the motor and impeller in the mutually isolated water storage cavity and power cavity respectively; the non-contact transmission of the magnetic attraction component avoids the wear and leakage problems of the traditional shaft seal structure, thereby improving the reliability and service life of the water pump. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the water pump structure according to Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the motor structure according to Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the impeller structure according to Embodiment 1 of this utility model;

[0018] Figure 4 This is a schematic diagram of the pump body according to Embodiment 1 of this utility model;

[0019] Figure 5 This is a schematic diagram of the bottom surface of the pump body according to Embodiment 1 of this utility model.

[0020] Label Explanation:

[0021] 1. Shell; 11. Water storage chamber; 12. Power chamber; 2. Motor; 3. Turntable; 31. Second magnetic chuck; 4. Impeller; 41. Fan blade; 42. Magnetic chuck; 43. First magnetic chuck; 5. Pump body; 51. Concentric shaft; 52. Inlet; 53. Flow guide channel; 54. Outlet; 6. Flange. Detailed Implementation

[0022] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please refer to Figures 1 to 3A water pump structure includes a housing 1, an impeller 4, a motor 2, and a turntable 3. The housing 1 includes a water storage chamber 11 and a power chamber 12 that are isolated from each other. The impeller 4 is rotatably installed in the water storage chamber 11. The motor 2 is installed in the power chamber 12. The turntable 3 is installed on the output shaft of the motor 2 and is coaxially arranged with respect to the impeller 4. The side of the impeller 4 near the turntable 3 is provided with a first magnetic attracting member 43. The turntable 3 is provided with a second magnetic attracting member 31 that is magnetically attracted to the first magnetic attracting member 43.

[0024] As can be seen from the above description, the beneficial effects of this utility model are as follows: by setting the motor 2 and the impeller 4 in the mutually isolated water storage chamber 11 and power chamber 12 respectively, the problem of water leakage of the motor 2 is fundamentally solved; by using the non-contact transmission of the magnetic attraction component, the wear and leakage problems of the traditional shaft seal structure are avoided, and the reliability and service life of the water pump are improved.

[0025] Furthermore, the impeller 4 includes a magnetic chuck 42 and a fan blade 41 mounted on the magnetic chuck 42, and the first magnetic chuck 43 is mounted on the side of the magnetic chuck 42 near the turntable 3.

[0026] As can be seen from the above description, the impeller 4 is designed as a combination of magnetic chuck 42 and fan blade 41, which facilitates the installation and positioning of the first magnetic chuck 43, while optimizing the fluid dynamics performance of the impeller 4 and improving the working efficiency of the water pump.

[0027] Furthermore, the number of the first magnetic attractor 43 and the number of the second magnetic attractor 31 are equal and both are multiple.

[0028] As can be seen from the above description, by setting multiple first magnetic suction components 43 and second magnetic suction components 31, the magnetic coupling area is increased, the torque transmission capability is improved, and the stable operation of the water pump under high load conditions is ensured.

[0029] Furthermore, the magnetic poles of two adjacent first magnetic attractors 43 are oriented in opposite directions.

[0030] As can be seen from the above description, the design of adjacent magnetic components with opposite magnetic poles optimizes the magnetic field distribution, reduces magnetic loss, improves transmission efficiency, and reduces operating noise.

[0031] Furthermore, it also includes a pump body 5, which is installed inside the water storage cavity 11, and the impeller 4 is rotatably installed on the pump body 5.

[0032] As can be seen from the above description, by adding the pump body 5 structure, a stable installation foundation is provided for the impeller 4, the smooth operation of the impeller 4 is improved, and the optimized design of the water flow channel is also facilitated.

[0033] Furthermore, the pump body 5 is detachably installed inside the water storage cavity 11.

[0034] As can be seen from the above description, the detachable design of the pump body 5 simplifies the maintenance and replacement process, reduces the cost of use, and improves the maintainability and user-friendliness of the product.

[0035] Furthermore, the pump body 5 is provided with a concentric rotating shaft 51, and the impeller 4 is rotatably mounted on the concentric rotating shaft 51. The concentric rotating shaft 51 is connected to the housing 1, and the central axis of the concentric rotating shaft 51 coincides with the central axis of the output shaft of the motor 2.

[0036] As can be seen from the above description, the concentric shaft 51 design ensures the precise alignment of the impeller 4 and the motor 2 turntable 3, reduces eccentric vibration, extends the service life of the bearings, and improves energy transfer efficiency.

[0037] Furthermore, the pump body 5 is provided with a first anti-friction pad at the position corresponding to the impeller 4.

[0038] As can be seen from the above description, the first anti-friction pad reduces the friction loss between the impeller 4 and the pump body 5, reduces operating noise, and improves the overall energy efficiency of the water pump.

[0039] Furthermore, the housing 1 is provided with a second anti-friction pad at the position corresponding to the impeller 4.

[0040] As can be seen from the above description, the second anti-friction pad further optimizes the operating environment of the impeller 4, prevents the impeller 4 from directly contacting the housing 1, and improves the durability and reliability of the product.

[0041] Furthermore, the motor 2 is also provided with a flange 6, which is connected to the housing 1.

[0042] As can be seen from the above description, the flange 6 design enhances the connection strength between the motor 2 and the housing 1, improves the stability of the overall structure, and facilitates the installation and disassembly of the motor 2, simplifying the assembly process.

[0043] Please refer to Figures 1 to 3Embodiment 1 of this utility model is: a water pump structure for providing power for the flow of liquid within a small household appliance; the water pump structure includes a housing 1, an impeller 4, a motor 2, and a turntable 3. The housing 1 includes a water storage chamber 11 and a power chamber 12 that are isolated from each other. The impeller 4 is rotatably mounted in the water storage chamber 11. The motor 2 is mounted in the power chamber 12. The turntable 3 is mounted on the output shaft of the motor 2 and is coaxially arranged corresponding to the impeller 4, that is, the central axis of the turntable 3 when rotating extends... The long line coincides with the extension line of the central axis of the impeller 4 when it rotates; the impeller 4 is provided with a first magnetic attraction member 43 on the side near the turntable 3, and the turntable 3 is provided with a second magnetic attraction member 31 that magnetically attracts the first magnetic attraction member 43; it can be understood that by setting the motor 2 and the impeller 4 in the mutually isolated water storage chamber 11 and power chamber 12 respectively, the problem of water leakage of the motor 2 is fundamentally solved; the non-contact transmission of the magnetic attraction member avoids the wear and leakage problems of the traditional shaft seal structure, and improves the reliability and service life of the water pump.

[0044] Preferably, the impeller 4 includes a magnetic chuck 42 and a fan blade 41 mounted on the magnetic chuck 42, with the first magnetic chuck 43 mounted on the side of the magnetic chuck 42 near the turntable 3. It is understood that designing the impeller 4 as a combination of the magnetic chuck 42 and the fan blade 41 facilitates the installation and positioning of the first magnetic chuck 43, while optimizing the hydrodynamic performance of the impeller 4 and improving the pump's working efficiency. Optionally, both the first magnetic chuck 43 and the second magnetic chuck 31 can be magnetic columns. The number of the first magnetic chuck 43 and the number of the second magnetic chuck 31 are equal and multiple. By setting multiple first magnetic chuck 43 and second magnetic chuck 31, the magnetic coupling area is increased, the torque transmission capability is improved, and the stable operation of the pump under high load conditions is ensured. Specifically, the number of the first magnetic chuck 43 and the second magnetic chuck 31 can be set according to actual application requirements.

[0045] In this embodiment, the magnetic poles of two adjacent first magnetic chucks 43 are oriented in opposite directions. That is, if the magnetic pole of one of the first magnetic chucks 43 facing the second magnetic chuck 31 is N, then the magnetic pole of the other adjacent first magnetic chuck 43 facing the second magnetic chuck 31 is S. Similarly, the magnetic poles of two adjacent second magnetic chucks 31 on the turntable 3 are also oriented in opposite directions. Thus, by adopting the design of adjacent magnetic chucks with opposite magnetic poles, the magnetic field distribution is optimized, magnetic loss is reduced, transmission efficiency is improved, and operating noise is reduced.

[0046] Preferably, the pump structure further includes a pump body 5, which is installed inside the water storage chamber 11. The impeller 4 is rotatably installed on the pump body 5. By adding the pump body 5, a stable installation foundation is provided for the impeller 4, improving the smooth operation of the impeller 4 and facilitating the optimized design of the water flow channel. Specifically, the pump body 5 is detachably installed inside the water storage chamber 11. The detachable connection method includes, but is not limited to, at least one of screw connection, bolt connection, snap-fit ​​connection, and pin connection. The detachable design of the pump body 5 simplifies the maintenance and replacement process, reduces the cost of use, and improves the maintainability and user-friendliness of the product. More specifically, the pump body 5 is provided with a concentric rotating shaft 51, on which the impeller 4 is rotatably installed. The concentric rotating shaft 51 is connected to the housing 1, and the central axis of the concentric rotating shaft 51 coincides with the central axis of the output shaft of the motor 2. The design of the concentric rotating shaft 51 ensures the precise alignment of the impeller 4 and the motor 2 turntable 3, reduces eccentric vibration, extends the bearing service life, and improves energy transfer efficiency.

[0047] In detail, the pump body 5 includes an inlet 52, a flow guide channel 53, and an outlet 54 connected in sequence (e.g., ...). Figure 4 and Figure 5 As shown, the impeller 4 is installed inside the flow guide channel 53. The rotation of the impeller 4 causes water to enter the flow guide channel 53 from the inlet 52, and the rotation of the impeller 4 causes the water in the flow guide channel 53 to flow out from the outlet 54. The diameter of the end of the flow guide channel 53 near the inlet 52 is larger than the diameter of the end of the flow guide channel 53 near the outlet 54, thus increasing the water pressure at the outlet 54 and achieving a better pumping effect. More specifically, there are four inlets 52. The specific number of inlets 52 can be set according to actual application requirements, which will not be elaborated here.

[0048] Optionally, a first anti-friction pad can be provided on the pump body 5 at the position corresponding to the impeller 4. The first anti-friction pad reduces frictional loss between the impeller 4 and the pump body 5, reduces operating noise, and improves the overall energy efficiency of the water pump. Further, the housing 1 is provided with a second anti-friction pad at the position corresponding to the impeller 4. The second anti-friction pad further optimizes the operating environment of the impeller 4, prevents the impeller 4 from directly contacting the housing 1, and improves the durability and reliability of the product. Furthermore, both the first and second anti-friction pads are detachable.

[0049] In this embodiment, the motor 2 is a DC brushless motor, and the motor 2 is also provided with a flange 6 (such as...). Figure 2As shown in the figure, the flange 6 is connected to the housing 1. The flange 6 design enhances the connection strength between the motor 2 and the housing 1, improves the stability of the overall structure, and facilitates the installation and disassembly of the motor 2, simplifying the assembly process. Specifically, the flange 6 is fixed to the motor 2 with screws and connected to the housing 1 with bolts. In this way, the coaxiality of the motor 2 and the impeller 4 can be effectively ensured.

[0050] In summary, the pump structure provided by this utility model fundamentally solves the problem of motor leakage by separately placing the motor and impeller in the isolated water storage chamber and power chamber; the non-contact transmission using magnetic chucks avoids the wear and leakage problems of traditional shaft seal structures, improving the reliability and service life of the pump; the impeller is designed as a combination of a magnetic chuck and a fan blade, facilitating the installation and positioning of the first magnetic chuck, while optimizing the impeller's hydrodynamic performance and improving the pump's working efficiency; by setting multiple first and second magnetic chucks, the magnetic coupling area is increased, improving torque transmission capability and ensuring stable operation of the pump under high load conditions; the design of adjacent magnetic chucks with opposite magnetic poles optimizes the magnetic field distribution, reduces magnetic loss, improves transmission efficiency, and reduces operating noise; and the addition of a pump body structure further enhances the pump's performance. The pump body provides a stable mounting base for the impeller, improving its operational smoothness and facilitating optimized water flow channel design. The detachable pump body simplifies maintenance and replacement processes, reduces operating costs, and enhances maintainability and user-friendliness. The concentric shaft design ensures precise alignment between the impeller and motor rotor, reducing eccentric vibration, extending bearing life, and improving energy transfer efficiency. The first anti-friction gasket reduces friction loss between the impeller and pump body, lowering operating noise and improving overall pump efficiency. The second anti-friction gasket further optimizes the impeller's operating environment, preventing direct contact between the impeller and casing, thus improving product durability and reliability. The flange design strengthens the connection between the motor and casing, improving overall structural stability and facilitating motor installation and disassembly, simplifying the assembly process.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water pump structure characterized by comprising: The utility model relates to a water pump, including shell, impeller, motor and rotating disc, the shell includes mutually isolated water storage cavity and power cavity, the impeller rotatable installation is in the water storage cavity, the motor is installed in the power cavity, the rotating disc is installed on the output shaft of the motor and is correspondingly coaxial with the impeller arrangement, the impeller is equipped with first magnetic attraction piece in the side close to the rotating disc, and the rotating disc is equipped with second magnetic attraction piece and first magnetic attraction piece each other magnetic attraction.

2. The water pump structure according to claim 1, characterized by The impeller includes magnetic attraction disc and fan blade installed on the magnetic attraction disc, and the first magnetic attraction piece is installed on the side of the magnetic attraction disc close to the rotating disc.

3. The water pump structure according to claim 1, characterized by The number of the first magnetic attraction piece and the number of the second magnetic attraction piece are equal and multiple.

4. The water pump structure according to claim 3, characterized by The magnetic poles of two adjacent first magnetic attraction pieces face opposite directions.

5. The water pump structure according to claim 1, characterized by The utility model further includes a pump body installed in the water storage cavity, and the impeller is rotatably installed on the pump body.

6. The water pump structure according to claim 5, characterized by The pump body is detachably installed in the water storage cavity.

7. The water pump structure according to claim 5, characterized by The pump body is provided with a concentric rotating shaft, the impeller is rotatably installed on the concentric rotating shaft, the concentric rotating shaft is connected with the shell, and the central axis of the concentric rotating shaft coincides with the central axis of the output shaft of the motor.

8. The water pump structure according to claim 5, characterized by The pump body is provided with a first anti-friction gasket corresponding to the position of the impeller.

9. The water pump structure according to claim 1, characterized by The shell is provided with a second anti-friction gasket corresponding to the position of the impeller.

10. The water pump structure according to claim 1, characterized by The motor is further provided with a flange plate connected with the shell.

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