Double-impeller water pump structure
By adjusting the magnetic field of the stator in the double impeller water pump structure to make the rotor rotate at high speed, combined with the sealing structure, the problems of low drainage efficiency and large size of existing water pumps are solved, achieving efficient drainage and space saving.
Patent Information
- Application Number
- CN202520245125.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing water pumps have a simple structure, low drainage efficiency, large size, and occupy a lot of space in the car, making them impractical.
It adopts a double impeller structure, and the rotor drives the drainage structure to rotate at high speed by adjusting the stator magnetic field. With the help of a sealing structure, the drainage efficiency is improved and the volume is reduced.
It improves the drainage efficiency and practicality of water pumps, reduces space occupation, and enhances the practicality of water pumps on automobiles.
Smart Images

Figure CN223662101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water pumps, and in particular to a water pump structure with a double impeller. Background Technology
[0002] A water pump is a mechanical device used to transport or pressurize liquids. Since the temperature of some parts of a car needs to be regulated, a water pump is needed to transport coolant. Existing car water pumps, such as the car cooling water pump disclosed in utility model patent CN203161637U and the car water pump that is easy to install disclosed in utility model patent CN218971413U, can all transport coolant.
[0003] However, during use, it was found that the existing water pump structure is relatively simple, has low drainage efficiency, and is large in size, taking up a lot of space in the car, resulting in poor practicality. Therefore, there is an urgent need for a water pump structure with a dual impeller to improve the above problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a double impeller water pump structure in which, after being energized, the stator adjusts the magnetic field to make the rotor drive the drainage structure to rotate at high speed. Through the cooperation of the drainage structure and the sealing structure, the coolant is transported, thereby improving the practicality of the double impeller water pump structure.
[0005] This utility model discloses a double-impeller water pump structure, including a sealing structure; it also includes a drive structure and a drainage structure. The drive structure is installed in the sealing structure and provides power to the drainage structure. The drainage structure is installed on the drive structure and cooperates with the drive structure to transport water.
[0006] The drive structure includes a stator and a rotor. The stator is installed in a sealed structure, the rotor is installed in the stator, and two sets of output shafts are provided on the stator.
[0007] After being powered on, the stator adjusts the magnetic field, causing the rotor to drive the drainage structure to rotate at high speed. Through the cooperation of the drainage structure and the sealing structure, the coolant is transported, thereby improving the practicality of the double impeller water pump structure.
[0008] Preferably, the drainage structure includes impeller one and impeller two, which are respectively mounted on two sets of conveying shafts of the rotor; the rotor drives impeller one and impeller two to rotate at high speed, and the coolant is conveyed by centrifugation, thereby improving the practicality of the double impeller water pump structure.
[0009] Preferably, the sealing structure includes a housing, a volute cover plate, and two sets of volutes. The volute cover plate and the two sets of volutes are all installed on the housing, and the two sets of volutes are located at the left and right ends of the housing, respectively. The volute cover plate is located in one set of volutes. Both sets of volutes are provided with water inlets and drain outlets. The stator and rotor are both located in the housing, and impeller one and impeller two are located in the two sets of volutes, respectively. Through the cooperation of the housing, volute cover plate, and volutes, the stator and rotor are sealed to prevent the coolant from affecting the stator and rotor. At the same time, through the operation of impeller one and impeller two, the coolant flows through the two sets of volutes, respectively, to complete the delivery of coolant, thereby improving the practicality of the double impeller water pump structure.
[0010] Preferably, the housing is provided with a male plug; the male plug is connected to a power source, which facilitates power supply to the stator, thereby improving the practicality of the double impeller water pump structure.
[0011] Preferably, the volute cover plate and the outer shell are ultrasonically welded, thereby improving the sealing effect of the outer shell and the volute cover plate.
[0012] Preferably, a drainage channel one is provided between the outer shell and a set of volutes, and a drainage channel two is provided between the volute cover plate and another set of volutes, and impeller one and impeller two are located in drainage channel one and drainage channel two respectively; thereby improving the practicality of the double impeller water pump structure.
[0013] Preferably, the two sets of volutes are respectively installed on the left and right ends of the outer casing by multiple sets of bolts; thereby improving the ease of maintenance of the double impeller water pump structure.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: after being powered on, the stator adjusts the magnetic field, causing the rotor to drive the drainage structure to rotate at high speed. Through the cooperation of the drainage structure and the sealing structure, the coolant is transported, thereby improving the practicality of the double impeller water pump structure. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0017] Figure 3 This is an exploded structural diagram of the present invention;
[0018] Figure 4 This is an isometric structural diagram of the drive structure and drainage structure of this utility model;
[0019] Figure 5 This is an isometric structural diagram of the outer shell of this utility model.
[0020] The following labels are used in the attached diagram: 1. Stator; 2. Rotor; 3. Impeller 1; 4. Impeller 2; 5. Casing; 6. Volute cover; 7. Volute housing; 8. Male connector. Detailed Implementation
[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0022] Example
[0023] like Figures 1 to 5 As shown, a double-impeller water pump structure includes a sealing structure; it also includes a drive structure and a drainage structure. The drive structure is installed in the sealing structure and provides power to the drainage structure. The drainage structure is installed on the drive structure and cooperates with the drive structure to transport water.
[0024] The drive structure includes a stator 1 and a rotor 2. The stator 1 is installed in a sealed structure, the rotor 2 is installed in the stator 1, and two sets of output shafts are provided on the stator 1.
[0025] The drainage structure includes impeller 3 and impeller 4, which are respectively mounted on two sets of conveying shafts of rotor 2.
[0026] The sealing structure includes an outer shell 5, a volute cover plate 6, and two sets of volutes 7. The volute cover plate 6 and the two sets of volutes 7 are all installed on the outer shell 5, and the two sets of volutes 7 are located at the left and right ends of the outer shell 5, respectively. The volute cover plate 6 is located in one set of volutes 7. Both sets of volutes 7 are provided with water inlets and drain outlets. The stator 1 and rotor 2 are both located in the outer shell 5, and impeller 1 3 and impeller 2 4 are located in the two sets of volutes 7, respectively.
[0027] A male plug 8 is provided on the outer casing 5;
[0028] The volute cover plate 6 and the outer shell 5 are ultrasonically welded.
[0029] A drainage channel one is provided between the outer shell 5 and a set of volutes 7, and a drainage channel two is provided between the volute cover plate 6 and another set of volutes 7. Impeller 1 3 and impeller 2 4 are located in drainage channel one and drainage channel two, respectively.
[0030] The two sets of volutes 7 are respectively installed on the left and right ends of the outer shell 5 by multiple sets of bolts;
[0031] Connect the male plug 8 to the power supply, and connect the drain and inlet ports of the two sets of volutes 7 to different pipelines on the vehicle. After power is applied, the stator 1 adjusts the magnetic field, causing the rotor 2 to drive the impeller 3 and impeller 4 to rotate at high speed, generating centrifugal force. This causes the coolant to enter through the inlet ports of the two sets of volutes 7 and then be discharged through the drain ports of the two sets of volutes 7, thereby improving the practicality of the double impeller water pump structure.
[0032] The stator 1 and rotor 2 of the double impeller water pump structure of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A water pump structure with two impellers, comprising a sealing structure; characterized in that, It also includes a drive structure and a drainage structure. The drive structure is installed in the sealed structure and provides power to the drainage structure. The drainage structure is installed on the drive structure and works with the drive structure to transport water. The drive structure includes a stator (1) and a rotor (2). The stator (1) is installed in a sealed structure, the rotor (2) is installed in the stator (1), and two sets of output shafts are provided on the stator (1).
2. The water pump structure with two impellers as described in claim 1, characterized in that, The drainage structure includes impeller one (3) and impeller two (4), which are respectively installed on two sets of conveying shafts of rotor (2).
3. The water pump structure with two impellers as described in claim 2, characterized in that, The sealing structure includes a shell (5), a volute cover plate (6) and two sets of volutes (7). The volute cover plate (6) and the two sets of volutes (7) are all installed on the shell (5), and the two sets of volutes (7) are located at the left and right ends of the shell (5) respectively. The volute cover plate (6) is located in one set of volutes (7). Both sets of volutes (7) are provided with water inlet and water outlet. The stator (1) and rotor (2) are both located in the shell (5). Impeller 1 (3) and impeller 2 (4) are located in the two sets of volutes (7) respectively.
4. The water pump structure with two impellers as described in claim 3, characterized in that, A male plug (8) is provided on the outer casing (5).
5. The water pump structure with two impellers as described in claim 3, characterized in that, The volute cover (6) and the outer shell (5) are ultrasonically welded.
6. The water pump structure with two impellers as described in claim 3, characterized in that, A drainage channel one is provided between the outer shell (5) and a set of volutes (7), and a drainage channel two is provided between the volute cover plate (6) and another set of volutes (7). Impeller one (3) and impeller two (4) are located in drainage channel one and drainage channel two, respectively.
7. The water pump structure with two impellers as described in claim 3, characterized in that, The two sets of volutes (7) are respectively installed on the left and right ends of the outer shell (5) by multiple sets of bolts.
Citation Information
Patent Citations
Cooling water pump for automobile
CN203161637U
Automobile water pump convenient to mount quickly
CN218971413U