Water pump impeller and water pump

Abstract

The water pump impeller is used for being installed in a volute of the water pump, and the water pump impeller comprises a rotatable disc body, a plurality of blades and a plurality of blades, the first blades are arranged on the upper surface of the disc body at intervals and extend from the center position of the disc body to the edge of the disc body in an arc shape, and the tops of the first blades are used for being attached to the inner side arc face of the volute so that vortexes can be formed in a volute chamber of the volute; the second blades are arranged on the lower surface of the disc body at intervals, extend from the center of the disc body to the edge of the disc body in an arc shape and are used for circulating cooling liquid during rotation; and the multiple flow channels are formed between any two adjacent first blades and any two adjacent second blades, the width of the flow channels is gradually increased from the center position of the disc body to the edge of the disc body, and the ends, located at the center position of the disc body, of all the flow channels are communicated.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a water pump impeller and a water pump. Background Art

[0002] In the vehicle's electronic water pump, the water pump impeller is a relatively important component.

[0003] At present, inside the water pump impeller, two groups of blades are usually installed on different components respectively. Taking CN210509710U as an example, the blades include a first blade integrally formed with the liquid inlet plate and a second blade integrally formed with the liquid outlet plate. The first blade and the second blade are staggered. When manufacturing the impeller, the free end of the first blade is welded to the liquid outlet plate, and the free end of the second blade is welded to the liquid inlet plate.

[0004] It can be seen that the first blade and the second blade need to be staggered, so that during the installation process, the positions of the first blade and the second blade need to be accurately controlled, the installation requirements are high, and the installation process is relatively complicated. Utility Model Content

[0005] The utility model aims to provide a water pump impeller and a water pump, which solve the technical problem of complicated installation process of the water pump impeller.

[0006] In order to achieve the above object, the utility model provides a water pump impeller, which is used to be installed inside the volute of the water pump, and the water pump impeller includes:

[0007] A rotatable disc;

[0008] A plurality of first blades are arranged at intervals, and are arranged on the upper surface of the disk body, and extend in an arc shape from the center of the disk body to the edge of the disk body, and the top of the first blade is used to fit with the inner arc surface of the volute to form a vortex in the volute chamber of the volute;

[0009] A plurality of second blades arranged at intervals are arranged on the lower surface of the disk body and extend in an arc shape from the center of the disk body to the edge of the disk body, and are used to circulate cooling liquid when rotating;

[0010] A plurality of flow channels are formed between any two adjacent first blades and any two adjacent second blades. The width of the flow channels gradually expands from the center of the disk to the edge of the disk. The ends of all the flow channels located at the center of the disk are connected.

[0011] Preferably, a reinforcing rib is provided between any two adjacent first blades, any one of the reinforcing ribs is arc-shaped, and all the reinforcing ribs are in a circular ring shape.

[0012] Preferably, the reinforcing ribs are fixedly connected to the disc body.

[0013] Preferably, the water pump impeller further comprises a bushing, which is arranged on the lower surface of the disc body and is used to be connected to the rotating rod of the water pump.

[0014] Preferably, a covering structure is further provided on the lower surface of the disc body, the covering structure extends along the axial direction of the disc body and covers the outer periphery of the bushing, and the second blade extends from the covering structure to the edge of the disc body.

[0015] Preferably, the disc body, the first blade, the second blade, the reinforcing ribs and the covering structure are integrally injection molded.

[0016] Preferably, the inner wall of the bushing is provided with threads.

[0017] Preferably, the bushing is a high temperature resistant bushing.

[0018] The utility model also provides a water pump, comprising the water pump impeller mentioned above.

[0019] Compared with the above background technology, the water pump impeller provided by the utility model includes a disk body, a first blade, a second blade and a flow channel. A plurality of first blades are arranged on the upper surface of the disk body and extend in an arc shape from the center position of the disk body to the edge of the disk body. The top of the first blade is used to fit with the inner arc surface of the volute to form a vortex in the volute chamber of the volute; a plurality of second blades are arranged on the lower surface of the disk body and extend in an arc shape from the center position of the disk body to the edge of the disk body, and are used to circulate cooling liquid during rotation. A plurality of flow channels are formed between any two adjacent first blades and two second blades, and the width of the flow channels gradually expands from the center position of the disk body to the edge of the disk body, and all the flow channels are connected at the ends located at the center position of the disk body.

[0020] The beneficial effects of the water pump impeller are:

[0021] The first blade and the second blade can divide the cooling water into two cycles in the volute chamber. The cycle of the first blade provides circulating water cooling for the external components that need to be cooled, that is, a vortex is formed in the volute chamber of the volute through the rotation of the first blade, and the second blade can form a cycle for the cooling water entering the motor body, thereby cooling the inside of the motor. In addition, the first blade and the second blade are both arranged on the disc body. It can be considered that the disc body, the first blade and the second blade are an integrated structure. During installation, only the installation position of the water pump impeller as a whole needs to be considered, which greatly simplifies the installation process and improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A cross-sectional view of a water pump provided by an embodiment of the utility model;

[0024] Figure 2 A structural diagram of a water pump impeller provided in an embodiment of the utility model;

[0025] Figure 3 A top view of a water pump impeller provided by an embodiment of the utility model;

[0026] Figure 4 A cross-sectional view of a water pump impeller provided by an embodiment of the utility model;

[0027] in:

[0028] Volute 01, volute chamber 02, rotating rod 03, stator 04,

[0029] A water pump impeller 1 , a disk body 10 , a first blade 11 , a flow channel 12 , a second blade 13 , a reinforcing rib 14 , a bushing 15 , and a covering structure 16 . DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] The utility model provides a water pump impeller 1, see attached Figure 1 To Attachment Figure 4 The water pump impeller 1 is used to be installed inside the volute 01 of the water pump. The water pump impeller 1 includes a disc body 10, a first blade 11, a flow channel 12 and a second blade 13.

[0033] The disk body 10 can be set to be a disk shape and can rotate around the central axis. A plurality of first blades 11 arranged at intervals are set on the upper surface of the disk body 10, and the first blades 11 extend in an arc shape from the center position of the disk body 10 to the edge of the disk body 10.

[0034] The top of the first blade 11 is used to fit with the inner arc surface of the volute to form a vortex in the volute chamber of the volute.

[0035] A plurality of second blades 13 are disposed at intervals on the lower surface of the disk body 10 . The second blades 13 extend in an arc shape from the center of the disk body 10 to the edge of the disk body 10 , and are used for circulating cooling liquid during rotation.

[0036] The shape structures of the first blade 11 and the second blade 13 can be set to be consistent, and the two can be symmetrically distributed compared to the disk body 10. The height of the second blade 13 can be lower than that of the first blade 11, so that the first blade 11 and the second blade 13 can respectively realize different functions in different spaces.

[0037] The flow channel 12 is formed between any two adjacent first blades 11 and any two adjacent second blades 13, that is, there is a flow channel 12 between any two adjacent first blades 11, and there is also a flow channel 12 between any two adjacent second blades 13. The width of the flow channel 12 gradually expands from the center position of the disk body 10 to the edge of the disk body 10, and all the flow channels 12 are connected at the ends located at the center position of the disk body 10.

[0038] It can be seen that the first blade 11 and the second blade 13 are arranged in a vortex shape. At the same time, in order to ensure the water flow characteristics of the flow channel 12 between two adjacent first blades 11, the first blade 11 and the arc surface of the volute 01 fit together to form a vortex in the volute chamber 02.

[0039] In some embodiments, a reinforcing rib 14 is further provided between any two adjacent first blades 11, any reinforcing rib 14 is arc-shaped, and all reinforcing ribs 14 are annular. The reinforcing rib 14 can ensure that all first blades 11 are connected, improve the overall structural strength of the water pump impeller 1, and make the first blades 11 stable and reliable during rotation.

[0040] Of course, the reinforcing ribs 14 can also be fixedly connected to the disc body 10, that is, the disc body 10, all the first blades 11 and the reinforcing ribs 14 are connected to each other, which can further improve the structural strength and ensure the overall strength of the water pump impeller.

[0041] In some embodiments, the water pump impeller also includes a bushing 15, which is disposed on the lower surface of the disk body 10. The bushing 15 is used to connect to the rotating rod 03 of the water pump. The bushing 15 can be made of metal or other materials, and can specifically be a high-temperature resistant bushing, so as to ensure a reliable connection with the rotating rod 03 and achieve stable and synchronous rotation of the bushing 15 and the rotating rod 03.

[0042] A covering structure 16 is further provided on the lower surface of the disc body 10 . The covering structure 16 extends along the axial direction of the disc body 10 and covers the outer periphery of the bushing 15 . The second blades 13 extend from the covering structure 16 to the edge of the disc body 10 .

[0043] Most preferably, the disc body 10, the first blade 11, the second blade 13, the reinforcing rib 14 and the covering structure 16 are integrally injection molded, and the water pump impeller is coated with the bushing 15 during injection molding. The material of the bushing 15 is a high temperature resistant material. The bushing 15 structure is added because the rotation of the water pump impeller 1 is driven by the rotation of the rotating rod 03 of the rotor, and the bushing 15 is connected to the rotating rod 03. The bushing 15 and the rotating rod 03 can be specifically an interference fit.

[0044] Of course, the inner wall of the bushing 15 may also be provided with threads, and the bushing 15 and the rotating rod 03 may be provided with threads that can cooperate with each other, that is, the bushing 15 and the rotating rod 03 are fixedly connected by means of threaded connection.

[0045] The utility model also provides a water pump, including the water pump impeller as described above, the water pump also includes components such as a volute 01, a volute chamber 02, a rotating rod 03 and a stator 04, the top of the rotating rod 03 is connected to the bushing 15 of the water pump impeller, the rotating rod 03 is connected to the rotor, and the stator 04 is located on the outside of the rotating rod 03 and the rotor to realize the operation of the water pump. The corresponding components of the water pump can refer to the existing technology and will not be expanded in this article.

[0046] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0047] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A water pump impeller, used to be installed inside the volute of a water pump, characterized in that: The water pump impeller comprises: A rotatable disc; A plurality of first blades arranged at intervals are provided on the upper surface of the disk body and extend in an arc shape from the center of the disk body to the edge of the disk body, and the top of the first blade is used to fit with the inner arc surface of the volute to form a vortex in the volute chamber of the volute; A plurality of second blades arranged at intervals are provided on the lower surface of the disk body and extend in an arc shape from the center of the disk body to the edge of the disk body, and are used for circulating cooling liquid during rotation; A plurality of flow channels are formed between any two adjacent first blades and any two adjacent second blades, the width of the flow channels gradually expands from the center position of the disk body to the edge of the disk body, and the ends of all the flow channels located at the center position of the disk body are connected.

2. The water pump impeller according to claim 1, characterized in that: A reinforcing rib is further provided between any two adjacent first blades, any one of the reinforcing ribs is arc-shaped, and all of the reinforcing ribs are in a circular ring shape.

3. The water pump impeller according to claim 2, characterized in that: The reinforcing rib is fixedly connected to the disc body.

4. The water pump impeller according to claim 2, characterized in that: The water pump impeller further comprises a bushing, which is arranged on the lower surface of the disc body and is used to be connected to the rotating rod of the water pump.

5. The water pump impeller according to claim 4, characterized in that: The lower surface of the disk body is further provided with a covering structure, which extends along the axial direction of the disk body and covers the outer periphery of the bushing, and the second blade extends from the covering structure to the edge of the disk body.

6. The water pump impeller according to claim 5, characterized in that: The disc body, the first blade, the second blade, the reinforcing ribs and the covering structure are integrally injection-molded.

7. The water pump impeller according to claim 4, characterized in that: The inner side wall of the bushing is provided with threads.

8. The water pump impeller according to claim 4, characterized in that: The bushing is a high temperature resistant bushing.

9. A water pump, characterized in that: It comprises a water pump impeller as described in any one of claims 1 to 8.

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