Highly integrated electric pump

The water pump, with its highly integrated design, uses a flange motor and an integrated housing, solving the problems of high energy consumption, large size, and easy leakage of traditional water pumps, and achieving efficient, stable, and convenient operation and maintenance.

CN224093555UActive Publication Date: 2026-04-07HUNAN M&W ENERGY SAVING TECH & SCI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional water pumps suffer from high energy consumption, large and heavy size, easy leakage, and inconvenient maintenance, especially in space-constrained scenarios where installation and maintenance are difficult.

Method used

It adopts a highly integrated design, using a rim motor to directly drive the impeller, eliminating the need for bearings and shaft seals. The outer shell is made of one-piece molding and metal materials, combined with flange connection and high-temperature impregnation paint layer, forming a stable drive structure and sealing performance.

Benefits of technology

It reduces mechanical wear and failure points, improves operational stability and reliability, lowers maintenance costs, is suitable for space-constrained scenarios, and ensures system sealing under high pressure and high flow rate conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a highly integrated electric pump, relates to the technical field of water pumps, and solves the technical problems that a traditional water pump is high in energy consumption, large and heavy in body, easy to leak and inconvenient to maintain, the highly integrated electric pump comprises an outer shell body, a shell cover, motors and an impeller, the two motors are symmetrically installed in the outer shell, and hollow shafts of the two motors accurately correspond to opening ring positions at the two ends of the impeller. A stable driving structure is formed through tight connection, and sealing treatment is conducted through the shell cover, so that the safety and stability of operation of the electric pump are effectively guaranteed; the simplified design of the utility model not only reduces the cost, but also improves the maintainability and reliability of the system; the highly integrated electric pump design is particularly suitable for occasions requiring high reliability and low maintenance, the structure is simplified, the size is reduced, and the operation stability is remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and more specifically to a highly integrated electric pump. Background Technology

[0002] Traditional water pumps suffer from poor motor-pump body matching and lack intelligent speed control, resulting in significant energy waste during low-flow or variable-condition operation. To balance axial forces, traditional water pumps require a symmetrical double-suction impeller design, leading to bulky and heavy pumps, increasing installation and transportation costs, and making them particularly unsuitable for space-constrained environments (such as construction sites and small equipment). Traditional water pumps often use packing seals or ordinary mechanical seals, which are prone to leakage due to wear or corrosion over long-term operation, requiring frequent seal replacements. Furthermore, critical components such as bearings and shaft seals are integrated inside the pump body, requiring complete disassembly for disassembly and maintenance, which is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this utility model is to provide a highly integrated electric pump in order to solve the technical problems of traditional water pumps, such as high energy consumption, large and heavy size, easy leakage and inconvenient maintenance.

[0004] The technical solution adopted by this utility model is as follows: a highly integrated electric pump includes a housing body, a casing, a motor and an impeller. Two motors are symmetrically installed inside the housing. The hollow shafts of these two motors are precisely aligned with the inlet rings at both ends of the impeller and are tightly connected to form a stable drive structure. The casing provides a sealing treatment, which effectively ensures the safety and stability of the electric pump operation.

[0005] The outer casing includes a power mounting cavity, an impeller mounting cavity, a first suction pipe, a second suction pipe, and an output pipe. The impeller mounting cavity and the power mounting cavity are coaxially distributed and the impeller mounting cavity is located in the middle of the two power mounting cavities. The first suction pipe is connected to one of the power mounting cavities, the second suction pipe is connected to the other power mounting cavity, and the output pipe is connected to the impeller mounting cavity.

[0006] The outer shell is integrally molded and bolted together to form a single unit. The outer shell is manufactured using a one-piece molding process, where no splicing or assembly is used. Instead, the raw materials are directly molded into a complete shell shape in one go using specific techniques, thus ensuring the integrity, stability, and sealing of the overall shell structure.

[0007] The output pipe is positioned at the centerline of the outer casing. With the output pipe as the central reference, the first and second suction pipes are symmetrically distributed. The output pipe is precisely positioned at the centerline of the outer casing, and with the output pipe as the central reference, the first and second suction pipes are strictly symmetrically distributed. This layout not only conforms to the overall structural design aesthetics but also ensures the balance and stability of the fluid during entry and exit, contributing to the efficient operation of the equipment.

[0008] The surfaces of the outer casing and the cover are coated with a high-temperature resistant impregnating paint layer. The outer surfaces of the outer casing and the cover are uniformly covered with a carefully applied high-temperature resistant impregnating paint layer. This special impregnating paint layer, penetrates to the material surface through a professional process, not only maintains stable physicochemical properties under high-temperature environments, effectively delaying aging and deformation caused by high temperatures, but also possesses excellent adhesion, tightly adhering to the casing and providing comprehensive, long-lasting protection, ensuring continuous and stable operation of the equipment under high-temperature conditions.

[0009] The free ends of the first suction pipe, the second suction pipe, and the output pipe are all configured with flange connections. This standardized connection method ensures a tight and secure assembly when connected to other pipelines or equipment, effectively preventing fluid leakage. Furthermore, the standardized flange connection facilitates installation and disassembly, greatly improving the convenience and efficiency of the overall equipment during installation, maintenance, and subsequent modifications.

[0010] The outer casing and cover are made of metal. Both the outer casing and cover are meticulously crafted from metal materials. These metal materials, with their excellent strength and durability, give the electric pump casing superior protective performance, effectively resisting external impacts and wear, and possessing good corrosion resistance. They can easily cope with complex and changing working environments, ensuring the long-term stable operation of the electric pump.

[0011] The motor is a flange motor. A flange motor is a special type of motor whose core feature is that the stator and rotor of the motor are designed on the flange structure, thereby achieving efficient power transmission and application.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] This invention further optimizes the structure of the double-suction pump by using two rim motors to directly drive the impeller, eliminating the need for traditional bearings and shaft seals, thus reducing mechanical losses and potential failure points. The double-suction pump is characterized by fluid entering from both sides of the impeller simultaneously, which can balance axial forces and reduce vibration and wear.

[0014] The rim motor is directly mounted at both ends of the impeller, and the hollow shaft is connected to the impeller inlet ring to achieve synchronous drive. This design not only simplifies the transmission structure but also improves transmission efficiency.

[0015] The motor housing and the water pump housing are fixed together to form an integrated structure. This design reduces connecting parts, lowers assembly complexity, and improves overall rigidity. The integrated structure also reduces the risk of leakage, especially under high pressure and high flow rate conditions, and can better ensure the system's sealing performance.

[0016] By directly driving the impeller with a rim motor, the bearings and shaft seals are eliminated, which not only reduces maintenance costs but also improves the reliability and lifespan of the system. Because the bearings and shaft seals are eliminated, the overall structure is more compact and the volume is greatly reduced, making it suitable for space-constrained applications. The dual motors synchronously drive the impeller, which can better balance axial and radial forces, reduce vibration, and improve operational stability.

[0017] The core structure is simplified to an impeller, two rim-mounted motors, and a housing, reducing the number of parts and simplifying manufacturing and assembly. This simplified design not only lowers costs but also improves system maintainability and reliability. This highly integrated electric pump design is particularly suitable for applications requiring high reliability and low maintenance, achieving structural simplification, size reduction, and significantly improved operational stability. Attached Figure Description

[0018] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the first axis view of this utility model;

[0020] Figure 2 This is another axial view schematic diagram of this utility model;

[0021] Figure 3 This is a front view structural schematic diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of this utility model (AA).

[0023] Figure 5 This is a side view structural diagram of the present invention;

[0024] Figure 6 This is a schematic diagram of the BB cross-sectional structure of this utility model;

[0025] The markings in the diagram are: 1-outer shell, 2-shell cover, 3-motor, 4-impeller, 11-power mounting cavity, 12-impeller mounting cavity, 13-first suction pipe, 14-second suction pipe, 15-output pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] In one embodiment of this utility model, such as Figure 1-6 As shown, this embodiment provides a highly integrated electric pump, including a housing body 1, a casing 2, a motor 3, and an impeller 4. Two motors 3 are symmetrically installed inside the housing. The hollow shafts of these two motors 3 are precisely aligned with the inlet rings at both ends of the impeller 4 and are tightly connected to form a stable drive structure. The casing 2 provides a sealing treatment, which effectively ensures the safety and stability of the electric pump operation.

[0029] In another embodiment of the present invention, the outer shell body 1 includes a power mounting cavity 11, an impeller mounting cavity 12, a first suction pipe 13, a second suction pipe 14, and an output pipe 15. The impeller mounting cavity 12 and the power mounting cavity 11 are coaxially distributed and the impeller mounting cavity 12 is located in the middle of the two power mounting cavities 11. The first suction pipe 13 is connected to one of the power mounting cavities 11, the second suction pipe 14 is connected to the other power mounting cavity 11, and the output pipe 15 is connected to the impeller mounting cavity 12.

[0030] In another embodiment of this utility model, the outer shell body 1 is integrally molded and connected as a whole by bolts. The outer shell body 1 is manufactured by an integral molding process. During the processing, no splicing or assembly is used. Instead, the raw materials are directly molded into a complete outer shell shape in one go through specific processes, thereby ensuring the integrity, stability and sealing of the overall structure of the outer shell.

[0031] In another embodiment of this utility model, the output pipe 15 is positioned at the centerline of the outer casing 1. With the output pipe 15 as the central reference, the first suction pipe 13 and the second suction pipe 14 are symmetrically distributed. The output pipe 15 is precisely positioned at the centerline of the outer casing 1, and with the output pipe 15 as the central reference, the first suction pipe 13 and the second suction pipe 14 are strictly symmetrically distributed. This layout not only conforms to the overall structural design aesthetics but also ensures the balance and stability of the fluid during the inflow and outflow process, contributing to the efficient operation of the equipment.

[0032] In another embodiment of this utility model, the surfaces of the outer shell body 1 and the shell cover 2 are coated with a high-temperature resistant impregnating paint layer. The outer surfaces of the outer shell body 1 and the shell cover 2 are uniformly covered with a carefully applied high-temperature resistant impregnating paint layer. This special impregnating paint layer, penetrates to the material surface through a professional process, not only maintains stable physicochemical properties under high-temperature environments, effectively delaying aging and deformation caused by high temperatures, but also possesses excellent adhesion, tightly adhering to the shell and providing comprehensive and long-lasting protection, ensuring continuous and stable operation of the equipment under high-temperature conditions.

[0033] In another embodiment of this utility model, the free ends of the first suction pipe 13, the second suction pipe 14, and the output pipe 15 are all configured as flange connection ends. This standardized connection method ensures, on the one hand, a tight and stable assembly when connected to other pipes or equipment, effectively preventing fluid leakage; on the other hand, the standardized flange connection facilitates installation and disassembly, greatly improving the convenience and efficiency of the overall equipment during installation, maintenance, and subsequent modifications.

[0034] In another embodiment of this utility model, the outer shell 1 and the cover 2 are made of metal. Both the outer shell 1 and the cover 2 are carefully crafted from metal. These metal materials, with their excellent strength and durability, give the electric pump housing superior protective performance, effectively resisting external impacts and wear, and possessing good corrosion resistance. They can easily cope with complex and changing working environments, ensuring the long-term stable operation of the electric pump.

[0035] In another embodiment of this utility model, the motor 3 is a flange motor. A flange motor is a special type of motor, the core feature of which is that the stator and rotor of the motor 3 are designed on the flange structure, thereby achieving efficient power transmission and application.

[0036] The working principle of this utility model is as follows: Based on the traditional double-suction pump design, an innovative approach is to install motors with stable underwater operation capabilities at both ends of the impeller 4. The hollow shaft of the motor 3 is directly connected to the inlet ring of the impeller 4 to achieve synchronous drive, driving the impeller 4 to rotate efficiently; the housing of the motor 3 is firmly connected to the housing of the water pump, forming an integrated structure. Compared with the traditional design, this solution cleverly eliminates the bearings and shaft seals of the water pump, significantly reducing the overall size while significantly enhancing operational stability. The core structure of the double-suction pump is thus simplified to the impeller 4, two motors 3, and the housing, achieving a more efficient and compact pump layout.

[0037] Furthermore, this product boasts a highly integrated design, deeply merging components such as the motor (3), housing, driver, and control system. It completely eliminates the traditional three-section discrete structure, removing intermediate components like couplings, effectively reducing size, vibration, and noise. The prefabricated modular design creates modular units, making installation and maintenance faster and more convenient. The direct coupling of the motor (3) to the pump body significantly reduces mechanical transmission losses, improving overall efficiency by 10%. The impact-resistant design effectively reduces mechanical wear during start-up and shutdown, extending equipment lifespan. Key components such as the impeller (4) and sealing system can be quickly disassembled and assembled, enabling modular maintenance and significantly reducing downtime and maintenance difficulty. Its lightweight design and miniaturized structure allow it to flexibly adapt to diverse and complex environments such as urban drainage and farmland irrigation. It comprehensively improves efficiency, stability, and applicability, demonstrating significant advantages in energy conservation, environmental protection, and ease of maintenance.

Claims

1. A highly integrated electric pump, comprising a housing body (1), a casing (2), a motor (3), and an impeller (4), characterized in that, Two motors (3) are symmetrically installed inside the housing. The hollow shafts of these two motors (3) are precisely aligned with the mouth rings at both ends of the impeller (4), are tightly connected, and are sealed by the housing cover (2).

2. The highly integrated electric pump according to claim 1, characterized in that, The outer casing (1) includes a power mounting cavity (11), an impeller mounting cavity (12), a first suction pipe (13), a second suction pipe (14), and an output pipe (15). The impeller mounting cavity (12) and the power mounting cavity (11) are coaxially distributed, and the impeller mounting cavity (12) is located in the middle of the two power mounting cavities (11). The first suction pipe (13) is connected to one of the power mounting cavities (11), the second suction pipe (14) is connected to the other power mounting cavity (11), and the output pipe (15) is connected to the impeller mounting cavity (12).

3. The highly integrated electric pump according to claim 1, characterized in that, The outer shell body (1) is integrally molded and connected into a whole by bolts.

4. A highly integrated electric pump according to claim 2, characterized in that, The output tube (15) is located at the center line of the outer casing (1).

5. A highly integrated electric pump according to claim 4, characterized in that, With the output tube (15) as the center reference, the first suction tube (13) and the second suction tube (14) are symmetrically distributed.

6. A highly integrated electric pump according to claim 1, characterized in that, The surfaces of the outer shell body (1) and the shell cover (2) are coated with a high-temperature resistant impregnation paint layer.

7. A highly integrated electric pump according to claim 2, characterized in that, The free ends of the first suction pipe (13), the second suction pipe (14), and the output pipe (15) are all configured as flange connection ends.

8. A highly integrated electric pump according to claim 1, characterized in that, The outer shell body (1) and the shell cover (2) are made of metal materials.

9. A highly integrated electric pump according to claim 1, characterized in that, The motor (3) is a flange motor.