A straight flow water pump capable of preventing particles from entering

Abstract

The utility model provides a kind of direct current water pump that can prevent particle from entering, belong to direct current water pump technical field, including water pump shell, water pump shell side is equipped with water inlet cover, water inlet cover side is connected with water inlet pipe by water filtering component;Water filtering component includes filter cartridge, water inlet cover side is connected with water inlet pipe by connecting pipe, the other side of water pump shell is equipped with water outlet cover, water outlet cover side is connected with water outlet pipe, water pump shell is rotatably equipped with impeller;Connecting pipe is equipped with filter cartridge corresponding water inlet pipe, filter cartridge circumferential side is equipped with multiple filter holes, the fluid that enters water pump is filtered, can be rotated filter cartridge under the action of fluid by two groups of spiral plate, when filter cartridge rotates, scraper will be scraped on the particle on filter hole, by guide pollution chute falls into guide pollution pipe, avoid particle to block filter hole, without stopping machine can realize the self-cleaning of filter hole, solve the problem that traditional filter screen causes flow to drop due to blockage, ensure that water pump continues stable operation.

Description

Technical Field

[0001] This utility model belongs to the field of DC water pump technology, and more specifically, it relates to a DC water pump that can prevent particles from entering. Background Technology

[0002] DC water pumps, as devices that convert electrical energy into fluid kinetic energy, are widely used in fields such as cooling systems for new energy vehicles and industrial circulating water treatment. Taking new energy vehicles as an example, DC water pumps are used to drive coolant to circulate in the battery thermal management system to ensure that the battery operates within a suitable temperature range.

[0003] In actual use, particulate impurities carried in the fluid can easily enter the pump body, affecting the normal operation of the pump. In the existing technology, in order to prevent particles from entering the DC water pump, a filter screen is usually installed at the pump inlet to block the particles from entering. However, the filter screen of traditional DC water pumps is easily clogged by particles, which leads to increased fluid flow resistance, reduced pump flow, and users need to frequently disassemble and clean the filter screen, increasing maintenance workload and operating costs. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a DC water pump that can prevent particles from entering, thereby solving the technical problems in the prior art where the filter screen of a traditional DC water pump is easily clogged, leading to a decrease in flow rate, and the need for frequent disassembly and cleaning of the filter screen, which increases maintenance workload and operating costs.

[0005] The purpose and effect of this utility model of a DC water pump that can prevent particles from entering are achieved by the following specific technical means: A DC water pump that can prevent particles from entering includes a water pump housing, a water inlet cover on one side of the water pump housing, and a water inlet cover connected to a water inlet pipe via a water filter assembly. The water filtration assembly includes a rotatable filter cylinder. One side of the water inlet cover is connected to the water inlet pipe via a connecting pipe. The filter cylinder is installed inside the connecting pipe corresponding to the water inlet pipe. Multiple sets of filter holes are opened around the periphery of the filter cylinder. A water outlet cover is provided on the other side of the water pump housing, and a water outlet pipe is connected to one side of the water outlet cover. An impeller is rotatably installed inside the water pump housing.

[0006] According to a preferred embodiment, the water filtration assembly further includes a sludge guide pipe, which is provided inside the connecting pipe corresponding to the filter cylinder. A sludge guide groove is provided at the top of the sludge guide pipe, and a scraper is provided at the top of the sludge guide groove. The scraper contacts the inner side of the filter cylinder corresponding to multiple sets of filter holes.

[0007] According to a preferred embodiment, a rotating seat is provided on one side of the water inlet cover, the filter cylinder is rotatably connected to the rotating seat, two sets of spiral plates are symmetrically arranged inside the filter cylinder, and a semi-circular opening is opened at the end of the water inlet cover adjacent to the water inlet pipe, corresponding to the connecting pipe.

[0008] According to a preferred embodiment, a conveying pipe is provided on one side of the connecting pipe, one end of the conveying pipe is connected to the sewage guide pipe, and the other end is connected to an external sewage collection device.

[0009] According to a preferred embodiment, a stator is provided inside the water pump housing, a rotor is provided inside the stator, a rotating shaft passes through the rotor, a connecting hole is provided on one side of the impeller, a connector is provided in the connecting hole, and the connector is connected to one end of the rotating shaft.

[0010] According to a preferred embodiment, a cooling shell is provided around the stator, and multiple sets of mounting brackets are provided around the cooling shell, with one end of each set of mounting brackets connected to the inner wall of the water pump shell.

[0011] According to a preferred embodiment, the cooling housing has through holes at both ends, and the rotating shaft passes through two sets of through holes at both ends, with bushings provided in both sets of through holes corresponding to the rotating shaft. Both the inlet cover and the outlet cover are provided with three sets of mounting bases, and the six sets of mounting bases are connected by three sets of connecting bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By installing a rotatable filter cylinder inside the connecting pipe, multiple sets of filter holes on its periphery filter the fluid entering the water pump. At the same time, two sets of spiral plates inside the filter cylinder drive the filter cylinder to rotate under the action of the fluid. The scraper inside the connecting pipe contacts the inside of the filter cylinder. When the filter cylinder rotates, the scraper scrapes off the particles attached to the filter holes and they fall into the guide pipe through the guide chute, preventing particles from clogging the filter holes. The filter holes can be self-cleaned without stopping the machine, keeping the fluid flow smoothly. This solves the problem of reduced flow caused by clogging of traditional filter screens and ensures the continuous and stable operation of the water pump.

[0013] 2. The guide chute at the top of the guide pipe works in conjunction with the scraper to guide the scraped particles into the guide pipe, and then the particles are transported to the external dirt collection equipment through the conveying pipe. Particle removal can be completed without disassembling the water inlet cover. Compared with the traditional method that requires frequent disassembly and cleaning of the filter screen, it avoids wear and tear on the seals and installation errors caused by disassembly, reduces maintenance workload and maintenance costs, and avoids interruption of system operation due to cleaning the filter screen, thus improving equipment efficiency.

[0014] 3. By setting a cooling shell around the stator, the cooling shell is connected to the inner wall of the water pump housing through multiple sets of mounting brackets to form a stable support structure. At the same time, the cooling shell is set inside the water pump housing, and the passing fluid can be used to cool and assist the stator in heat dissipation, avoiding heat accumulation that leads to performance degradation. The bushings at both ends of the rotating shaft reduce rotational friction and reduce wear on impellers, bearings and other components, thereby improving the service life of the water pump. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the assembled water filtration assembly in this utility model; Figure 4 This is a schematic diagram of the disassembled water filtration component in this utility model; Figure 5 This is a schematic diagram of the structure of the impeller and the rotating shaft after assembly in this utility model; Figure 6 for Figure 5 A schematic diagram of the disassembled structure.

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. Pump housing; 12. Inlet cover; 13. Inlet pipe; 14. Outlet cover; 15. Outlet pipe; 16. Mounting base; 17. Connecting bolts; 21. Filter cartridge; 22. Connecting pipe; 23. Filter hole; 24. Sludge guide pipe; 25. Sludge guide chute; 26. Scraper; 27. Rotating seat; 28. Spiral plate; 29. ​​Semi-circular opening; 30. Conveying pipe; 31. Impeller; 32. Stator; 33. Rotor; 34. Rotating shaft; 35. Connecting hole; 36. Cooling housing; 37. Mounting bracket; 38. Shaft sleeve; 39. Connecting parts. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example:

[0018] As attached Figure 1 To be continued Figure 6 As shown: This utility model provides a DC water pump that can prevent particles from entering, including a water pump housing 11, a water inlet cover 12 is provided on one side of the water pump housing 11, and the water inlet cover 12 is connected to the water inlet pipe 13 through a water filter assembly to form a channel for fluid to enter the water pump.

[0019] The water filtration assembly includes a rotatable filter cylinder 21. One side of the water inlet cover 12 is connected to the water inlet pipe 13 via a connecting pipe 22. The filter cylinder 21 is installed inside the connecting pipe 22 corresponding to the water inlet pipe 13. Multiple sets of filter holes 23 are opened around the filter cylinder 21. The other side of the water pump housing 11 is provided with a water outlet cover 14. One side of the water outlet cover 14 is connected to a water outlet pipe 15, which serves as a channel for fluid discharge. An impeller 31 is rotatably installed inside the water pump housing 11 to drive the fluid flow.

[0020] Specifically, when fluid enters the connecting pipe 22 from the inlet pipe 13, the filter holes 23 on the periphery of the filter cylinder 21 are used to intercept particulate impurities in the fluid, blocking the particulate impurities on the outside of the filter cylinder 21, preventing the particles from entering the pump housing 11 with the fluid, thereby reducing the impact and wear of the particles on the impeller 31, reducing the probability of damage to the impeller 31, and extending the overall service life of the pump. Please refer to, for example Figure 3 and Figure 4 As shown, the water filtration assembly also includes a sludge guide pipe 24. The sludge guide pipe 24 is provided inside the connecting pipe 22 corresponding to the filter cylinder 21. A sludge guide groove 25 is opened at the top of the sludge guide pipe 24. A scraper 26 is provided at the top of the sludge guide groove 25. The scraper 26 contacts the top of the inner side of the filter cylinder 21 corresponding to multiple sets of filter holes 23.

[0021] Specifically, when the filter cylinder 21 rotates, the particles attached to the filter holes 23 will come into contact with the scraper 26 as the filter cylinder 21 rotates. The scraper 26 scrapes the particles off the filter holes 23. The scraped particles enter the guide pipe 24 through the guide groove 25, thereby removing the particles on the filter holes 23 and preventing the filter holes 23 from being blocked. The filter holes 23 can be self-cleaned without stopping the machine, which can maintain the smooth flow of fluid and avoid the problem of reduced flow caused by the blockage of traditional filter screens, ensuring that the water pump can work continuously and stably.

[0022] Please refer to, for example Figure 4 As shown, a rotating seat 27 is provided on one side of the water inlet cover 12. The filter cylinder 21 is rotatably connected to the rotating seat 27. Two sets of spiral plates 28 are symmetrically arranged inside the filter cylinder 21. A semi-circular opening 29 is opened at the end of the water inlet cover 12 and the water inlet pipe 13 respectively, corresponding to the connecting pipe 22. A conveying pipe 30 is provided on one side of the connecting pipe 22. One end of the conveying pipe 30 is connected to the sewage guide pipe 24, and the other end is connected to the external sewage collection equipment.

[0023] Specifically, when the fluid passes through the connecting pipe 22, the two sets of spiral plates 28 inside the filter cylinder 21 are impacted by the fluid, thereby driving the filter cylinder 21 to rotate on the rotating seat 27. This rotation does not require an additional power device and can be achieved by utilizing the kinetic energy of the fluid itself. The particles in the guide pipe 24 are transported to the external dirt collection device through the conveying pipe 30. Users can complete the particle removal work without disassembling the water inlet cover 12. Compared with the traditional DC water pump that requires frequent disassembly and cleaning of the filter screen, this avoids the wear of the seals during disassembly, reduces installation errors, and lowers the maintenance workload and cost. At the same time, there is no need to stop the machine to clean the filter screen, avoiding the interruption of system operation due to cleaning, thus improving the efficiency of the water pump.

[0024] Please refer to, for example Figure 5 and Figure 6 As shown, a stator 32 is provided inside the water pump housing 11, and a rotor 33 is provided inside the stator 32. A rotating shaft 34 passes through the center of the rotor 33. A connecting hole 35 is provided on one side of the impeller 31. A connector 39 is provided inside the connecting hole 35. The connector 39 is connected to one end of the rotating shaft 34, thereby fixing the impeller 31 and the rotating shaft 34 together. Please refer to, for example Figure 6 As shown, a cooling housing 36 is provided around the stator 32, and multiple sets of mounting brackets 37 are provided around the cooling housing 36. One end of each set of mounting brackets 37 is connected to the inner wall of the water pump housing 11, fixing the cooling housing 36 inside the water pump housing 11. Through holes are provided at both ends of the cooling housing 36, and the two ends of the rotating shaft 34 pass through the two sets of through holes respectively. A bushing 38 is provided in each of the two sets of through holes corresponding to the rotating shaft 34. The inlet cover 12 and the outlet cover 14 are each provided with three sets of mounting seats 16. The six sets of mounting seats 16 are connected by three sets of connecting bolts 17 to fix the inlet cover 12 and the outlet cover 14 to the water pump housing 11.

[0025] Specifically, the cooling housing 36 is connected to the inner wall of the water pump housing 11 through multiple sets of mounting brackets 37 to form a stable support structure, ensuring that the cooling housing 36 is fixed in position within the water pump housing 11. The cooling housing 36 is located inside the water pump housing 11, and when fluid passes through it, it can carry away the heat on the cooling housing 36, assisting the stator 32 in heat dissipation and preventing the stator 32 from degrading due to heat accumulation. The bushings 38 at both ends of the rotating shaft 34 are fitted onto the rotating shaft 34, reducing the friction between the rotating shaft 34 and the through holes of the cooling housing 36, allowing the rotating shaft 34 to rotate more smoothly.

[0026] The specific usage and function of this embodiment are as follows: When using the water pump, place the water pump in the desired position, connect the inlet pipe 13 to the connecting pipe 22 on one side of the inlet cover 12, connect the outlet pipe 15 to the outlet cover 14, and connect one end of the delivery pipe 30 to the external dirt collection device to complete the installation of the pipeline system; open the valve of the inlet pipe 13, and the fluid enters the connecting pipe 22 from the inlet pipe 13. Under the action of the fluid, the spiral plate 28 on the inner side of the filter cylinder 21 drives the filter cylinder 21 to rotate on the rotating seat 27. The filter holes 23 on the periphery of the filter cylinder 21 intercept particulate impurities in the fluid; at the same time, the rotating filter cylinder 21 causes the particles attached to the filter holes 23 to come into contact with the scraper 26. The particles are scraped off and fall into the guide pipe 24 through the guide chute 25, and then are discharged into the external dirt collection device through the delivery pipe 30; the impeller 31 rotates under the drive of the rotating shaft 34, driving the filtered fluid through the water pump housing 11 and discharged from the outlet pipe 15. The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A direct current water pump that prevents particles from entering, characterized in that: It includes a water pump housing (11), and a water inlet cover (12) is provided on one side of the water pump housing (11). The water inlet cover (12) is connected to the water inlet pipe (13) through a water filter assembly. The water filtration assembly includes a rotatable filter cylinder (21). One side of the water inlet cover (12) is connected to the water inlet pipe (13) through a connecting pipe (22). The filter cylinder (21) is provided inside the connecting pipe (22) corresponding to the water inlet pipe (13). Multiple sets of filter holes (23) are opened around the filter cylinder (21). A water outlet cover (14) is provided on the other side of the water pump housing (11), and a water outlet pipe (15) is connected to one side of the water outlet cover (14). An impeller (31) is rotatably provided inside the water pump housing (11).

2. A direct current water pump that prevents particles from entering, as described in claim 1, is characterized in that: The water filtration assembly also includes a sludge guide pipe (24). The sludge guide pipe (24) is provided inside the connecting pipe (22) corresponding to the filter cylinder (21). A sludge guide groove (25) is opened at the top of the sludge guide pipe (24). A scraper (26) is provided at the top of the sludge guide groove (25). The scraper (26) contacts the inner side of the filter cylinder (21) corresponding to multiple sets of filter holes (23).

3. A direct current water pump that prevents particles from entering, as described in claim 2, characterized in that: A rotating seat (27) is provided on one side of the water inlet cover (12). The filter cylinder (21) is rotatably connected to the rotating seat (27). Two sets of spiral plates (28) are symmetrically arranged on the inner side of the filter cylinder (21). A semi-circular opening (29) is opened at the end of the water inlet cover (12) adjacent to the water inlet pipe (13) corresponding to the connecting pipe (22).

4. A direct current water pump that prevents particles from entering, as described in claim 2, characterized in that: A conveying pipe (30) is provided on one side of the connecting pipe (22). One end of the conveying pipe (30) is connected to the sewage guide pipe (24), and the other end is connected to the external sewage collection equipment.

5. A direct current water pump that prevents particles from entering, as described in claim 1, characterized in that: The pump housing (11) is provided with a stator (32), the stator (32) is provided with a rotor (33), the rotor (33) is provided with a rotating shaft (34), the impeller (31) is provided with a connecting hole (35) on one side, the connecting hole (35) is provided with a connector (39), and the connector (39) is connected to one end of the rotating shaft (34).

6. A direct current water pump that prevents particles from entering, as described in claim 5, characterized in that: The stator (32) is provided with a cooling shell (36) around its periphery. Multiple sets of mounting brackets (37) are provided around the cooling shell (36). One end of each set of mounting brackets (37) is connected to the inner wall of the water pump shell (11).

7. A direct-flow water pump that prevents particles from entering, as described in claim 6, characterized in that: The cooling housing (36) has through holes at both ends, and the two ends of the rotating shaft (34) pass through two sets of through holes respectively. A bushing (38) is provided in each set of through holes corresponding to the rotating shaft (34). The inlet cover (12) and the outlet cover (14) are each provided with three sets of mounting seats (16), and the six sets of mounting seats (16) are connected to each other by three sets of connecting bolts (17).

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